CN104828034A - Openable double-thread sleeve elastic pressing friction self-tightening emergency brake packet - Google Patents

Openable double-thread sleeve elastic pressing friction self-tightening emergency brake packet Download PDF

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Publication number
CN104828034A
CN104828034A CN201510294016.2A CN201510294016A CN104828034A CN 104828034 A CN104828034 A CN 104828034A CN 201510294016 A CN201510294016 A CN 201510294016A CN 104828034 A CN104828034 A CN 104828034A
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CN
China
Prior art keywords
screw thread
thread
jacket cylinder
outer mobile
mobile
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Pending
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CN201510294016.2A
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Chinese (zh)
Inventor
魏伯卿
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Individual
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Individual
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Priority to CN201510294016.2A priority Critical patent/CN104828034A/en
Publication of CN104828034A publication Critical patent/CN104828034A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels

Abstract

An openable double-thread sleeve elastic pressing friction self-tightening emergency brake packet comprises an inner fixed threaded sleeve, an inner moving threaded sleeve, an outer moving threaded inner sleeve and an outer moving threaded outer sleeve which are arranged on an axle in a sleeving mode. The brake packet is characterized in that the inner fixed threaded sleeve is fixedly installed on the axle, the inner moving threaded sleeve is screwed on external threads of the inner fixed threaded sleeve in a sleeving mode, the outer surface of the inner moving threaded sleeve is provided with an outer friction face of the inner moving threaded sleeve, the outer moving threaded inner sleeve is arranged near the outer surface of the outer friction face of the inner moving threaded sleeve, the outer moving threaded inner sleeve is composed of two semicircular cylinders provided with two connection openings, the connection opening connected with multiple outer moving threaded inner sleeve semi-cylinder connection shafts is a rotary opening, the other connection opening is an openable opening, the included angle between the connection line of the joints of the two openings of the two semicircular cylinders of the outer moving threaded inner sleeve and the horizontal plane passing the center axis of the axle is 45 degrees, and the rotary opening is lower than the openable opening.

Description

Friction self-tightening type emergency brake bag can be suppressed by the two screw thread bush of opening and closing
Technical field
The present invention relates to and can suppress friction self-tightening type emergency brake bag by the two screw thread bush of opening and closing, be applicable to the brake of all automobiles, belong to technical field of vehicle safety.
Background technology
We often hear many automobiles particularly large-scale autotruck, due to brake failure generation grave accident, because the hydraulic coupling that the present braking automobile of one side needs driving engine to run mostly or atmospheric pressure brake, the brake system long-time running of automobile uses on the other hand, likely to break down or malfunctioning, therefore, ensure that the most important brake of safety does not have stand-by system particularly not have emergency braking system to be irrational; And the parking brake of nearly all automobile not too works for real brake, particularly automobile is when running at high speed or in descending brake failure or under the unexpected off position of driving engine, and parking brake does not have any effect.
Domestic and international research, the achievement of production and invention automobile brake system, report and system and device quite a lot, and it is quite a few for the emergency braking system of automobile, but these system and device great majority all more complicated, and mostly all will by means of the hydraulic pressure of engine operation or pressure system during brake, Wei Baiqing has multiple invention to design dexterously to achieve not by means of hydraulic pressure or atmospheric pressure, insurance, pure machinery, without the need to the Manual braking system of engine power, but the present invention is the another kind of structural defence improved in the patent of invention " 201510245915.3: two screw thread bush conical surface friction self-tightening type emergency brake bag " and " 201510258310.8: self-tightening type emergency brake bag is suppressed in two screw thread bush conical surface friction " basis of Wei Baiqing.
Summary of the invention
The object of this invention is to provide a kind of the axostylus axostyle rotary power of automobile can be utilized mutually to be rubbed by two screw thread bushs and can unclamp two attrition surfaces after screw thread bush being rotated produce that a kind of internal force makes the friction of brake increasing, brake can suppress friction self-tightening type emergency brake bag by the two screw thread bush of opening and closing.
Friction self-tightening type emergency brake bag can be suppressed by the two screw thread bush of opening and closing, comprise the internal fixtion screw thread bush be sleeved on axletree, mobile screw thread bush, an outer mobile screw thread inner sleeve and an outer mobile thread jacket cylinder in one; It is characterized in that:
1, internal fixtion screw thread bush is fixedly mounted on axletree, internal fixtion screw thread bush and axletree coaxial inner conductor rotate, the outside face of internal fixtion screw thread bush has internal fixtion screw thread bush outside thread, interior mobile screw collar jacket casing is screwed on the outside thread of internal fixtion screw thread bush, the inside face of interior mobile screw thread bush has interior mobile screw thread bush negative thread, internal fixtion screw thread bush outside thread and interior mobile screw thread bush negative thread match, namely internal fixtion screw thread bush can rotate forward and interior mobile screw thread bush be moved right on the outside thread of internal fixtion screw thread bush or contrarotation is moved to the left on the negative thread of interior mobile screw thread bush, rotate forward as being seen as clickwise from the right side in figure left, in other words, mobile screw thread bush rotates forward and interior mobile screw thread bush is moved to the left on the outside thread of internal fixtion screw thread bush on the outside thread of internal fixtion screw thread bush, or the contrarotation on the outside thread of internal fixtion screw thread bush of interior mobile screw thread bush makes interior mobile screw thread bush move right on the outside thread of internal fixtion screw thread bush, the high order end of internal fixtion screw thread bush has a left set collar of left spring, a left spring is installed with between the right flank of the left set collar of left spring and the left side of interior mobile screw thread bush, the effect of left spring makes the negative thread high order end of interior mobile screw thread bush screw the outside thread high order end of top to internal fixtion screw thread bush, and when internal fixtion screw thread bush to rotate forward i.e. dextrorotation then after making interior mobile screw thread bush move right on the outside thread of internal fixtion screw thread bush relative to interior mobile screw thread bush, when external force disappears, left spring can make interior mobile screw thread bush on the outside thread of internal fixtion screw thread bush, be moved to the left the negative thread high order end being returned to interior mobile screw thread bush and screw the state of top to the outside thread high order end of internal fixtion screw thread bush, the outside face of interior mobile screw thread bush has the outer attrition surface of interior mobile screw thread bush, the outside face of the outer attrition surface of interior mobile screw thread bush is a circular conical surface, the left end radius of circle of circular conical surface is greater than the right-hand member radius of circle of circular conical surface, and the angle of the outer attrition surface conical surface of interior mobile screw thread bush and axletree axial line is α, the outer attrition surface proximity of interior mobile screw thread bush has an outer mobile screw thread inner sleeve, outer mobile screw thread inner sleeve is made up of two semicircular cylinders, two semicircular cylinders are connected by multiple outer mobile screw thread inner sleeve half adapter shaft, the communication port be made up of two semicircular cylinders has two interfaces, the interface connected by multiple outer mobile screw thread inner sleeve half adapter shaft is rotate mouth, another interface is can opening and closing mouth, two semicircular cylinders can rotate around multiple outer mobile screw thread inner sleeve half adapter shaft, and make two semicircular cylinders can do on-off action around outer mobile screw thread inner sleeve half adapter shaft, the line of two semicircular cylinders, two opening engage positions of outer mobile screw thread inner sleeve becomes 45o angle with the horizontal surface crossing axletree central axis, and rotate mouth position ratio can opening and closing mouth position low, the inner headed face of outer mobile screw thread inner sleeve is outer mobile screw thread inner sleeve internal friction face, the inside face in outer mobile screw thread inner sleeve internal friction face is a circular conical surface, the left end radius of circle of circular conical surface is greater than the right-hand member radius of circle of circular conical surface, the angle of outer mobile screw thread inner sleeve internal friction face conical surface and axletree axial line is β, α+0.5o≤β≤α+6o, the outside face of outer mobile screw thread inner sleeve has outer mobile screw thread inner sleeve outside thread, outer mobile screw thread inner sleeve outside thread has screwed outer mobile thread jacket cylinder, the internal circular surfaces of outer mobile thread jacket cylinder has outer mobile thread jacket cylinder negative thread, the phase that matches outer mobile screw thread inner sleeve outside thread and outer mobile thread jacket cylinder negative thread " engages ", and outer mobile screw thread inner sleeve outside thread can move outside on negative thread that contrarotation on thread jacket cylinder negative thread makes outer mobile screw thread inner sleeve move thread jacket cylinder outside and is moved to the left, that is the outer mobile thread jacket cylinder negative thread of outer mobile thread jacket cylinder is contrary with the hand of spiral of the interior mobile screw thread bush negative thread of interior mobile screw thread bush, the outer mobile screw thread inner sleeve outside thread of outer mobile screw thread inner sleeve is contrary with the externally threaded hand of spiral of internal fixtion screw thread bush of internal fixtion screw thread bush, outer mobile thread jacket cylinder is made up of two semicircular cylinders, two semicircular cylinders are connected by multiple outer mobile thread jacket cylinder half adapter shaft, the communication port be made up of two semicircular cylinders has two interfaces, the interface connected by multiple outer mobile thread jacket cylinder half adapter shaft is rotate mouth, another interface is can opening and closing mouth, two semicircular cylinders can rotate around multiple outer mobile thread jacket cylinder half adapter shaft, and make two semicircular cylinders can do on-off action around multiple outer mobile thread jacket cylinder half adapter shaft, the line of two semicircular cylinders, two opening engage positions of outer mobile thread jacket cylinder becomes 45o angle with the horizontal surface of axletree, and rotate mouth position ratio can opening and closing mouth position low, outer mobile thread jacket cylinder can opening and closing mouth position and outer mobile screw thread inner sleeve can opening and closing mouth position corresponding, the rotation mouth position of outer mobile thread jacket cylinder is corresponding with the rotation mouth position of outer mobile screw thread inner sleeve, two semicircular cylinders of outer mobile thread jacket cylinder can rotate around respective half adapter shaft with two semicircular cylinders of outer mobile screw thread inner sleeve simultaneously do on-off action simultaneously, now outer mobile screw thread inner sleeve outside thread " engages " constant with outer mobile thread jacket cylinder negative thread phase, two semicircular cylinders of outer mobile thread jacket cylinder a point shoulder can be respectively installed opening and closing mouth outer ledge, be respectively outer mobile thread jacket cylinder left point shoulder and the right point shoulder of outer mobile thread jacket cylinder, it is that the left point of outer mobile thread jacket cylinder takes on upper right inclined-plane that the left point shoulder of outer mobile thread jacket cylinder takes on relative inclined-plane with the right point of outer mobile thread jacket cylinder, it is that the right point of outer mobile thread jacket cylinder takes on lower inclined plane that the right point shoulder of outer mobile thread jacket cylinder takes on relative inclined-plane with the left point of outer mobile thread jacket cylinder, it is parallel to each other that outer mobile thread jacket cylinder left point shoulder upper right inclined-plane and the right point of outer mobile thread jacket cylinder take on lower inclined plane, and it is overlapping with the 45o omnibearing line of axletree, the lateral surface of the left point shoulder of outer mobile thread jacket cylinder is takeed on upper right inclined-plane with the left point of outer mobile thread jacket cylinder and is become 45o angle, the lateral surface of the right point shoulder of outer mobile thread jacket cylinder is takeed on lower inclined plane with the right point of outer mobile thread jacket cylinder and is become 45o angle, thus when two semicircular cylinders of outer mobile thread jacket cylinder are closed, the lateral surface that the lateral surface of the left point shoulder of outer mobile thread jacket cylinder and the right point of outer mobile thread jacket cylinder are takeed on forms 90o angle, outer mobile thread jacket cylinder two semicircular cylinders can have a circular arc buckle outside opening and closing mouth, the lower end of circular arc buckle is arranged on the outside face of outer mobile thread jacket cylinder, and be connected by the rotating shaft of circular arc buckle with outer mobile thread jacket cylinder, circular arc buckle can be rotated around the rotating shaft of circular arc buckle, two points at opening and closing mouth edge can takeing on corresponding position and have sharp groove in a circular arc buckle of medial surface and outer mobile thread jacket cylinder two semicircular cylinders of circular arc buckle, in circular arc buckle sharp groove interior angle center line and outer mobile thread jacket cylinder two semicircular cylinders can the closed line of opening and closing mouth overlapping, in circular arc buckle, the interior angle of sharp groove is Ф, 90o < Ф < 92o, there is a circular arc buckle pull bar upper end of circular arc buckle, circular arc buckle pull bar stretches out brake outsourcing from the brake outsourcing arc groove of brake outsourcing, there is the bracing wire of a circular arc buckle on the top of circular arc buckle pull bar, the bracing wire of circular arc buckle is connected with brake bracing wire by multiple track adjusting wheel, circular arc buckle pull bar and the opposing side of circular arc buckle bracing wire are provided with a return little spring, the other end of return little spring is fixedly mounted on the notch of brake outsourcing arc groove, when straining parking brake and drive brake bracing wire, brake bracing wire drives the bracing wire of circular arc buckle, make circular arc buckle when the rotating shaft of circular arc buckle rotates, in circular arc buckle inside circular arc buckle sharp groove just cover be buckled in the left point shoulder of outer mobile thread jacket cylinder lateral surface and the lateral surface takeed on of the right point of outer mobile thread jacket cylinder on, and along with groove sharp in circular arc buckle is more withheld on the lateral surface and the lateral surface takeed on of the right point of outer mobile thread jacket cylinder moving the left point shoulder of thread jacket cylinder outside, the sharp groove more lateral surface takeed on of the lateral surface of the left point shoulder of the outer mobile thread jacket cylinder of extruding and the right point of outer mobile thread jacket cylinder in circular arc buckle, and the right point of outer mobile thread jacket cylinder making the left point shoulder upper right inclined-plane of outer mobile thread jacket cylinder of outer mobile thread jacket cylinder left point shoulder and the right point of outer mobile thread jacket cylinder take on takes on lower inclined plane the closer to fitting together, thus two semicircular cylinders of mobile thread jacket cylinder and two semicircular cylinders of outer mobile screw thread inner sleeve no longer unclamp outside pinning, when unclamping after parking brake loosens the bracing wire of circular arc buckle, because return little spring spring-force driven dual makes circular arc buckle pull bar be returned to the position before pulling the hand brake, and the lateral surface making the inside face of sharp groove in the circular arc buckle in circular arc buckle and the left point of outer mobile thread jacket cylinder take on is separated with the lateral surface that the right point of outer mobile thread jacket cylinder is takeed on, thus two semicircular cylinders of two semicircular cylinders of outer mobile thread jacket cylinder and outer mobile screw thread inner sleeve are unclamped naturally, and then remove emergency brake, multiple outer mobile thread jacket cylinder outer left foil shoulder is installed near the outside face left end of outer mobile thread jacket cylinder, the medial surface of brake outsourcing has foil groove in multiple brake outsourcing, in multiple brake outsourcings that the outer left foil shoulder cover of outer mobile thread jacket cylinder is stuck in brake outsourcing medial surface on foil groove, and the phase that matches the outer left foil shoulder of outer mobile thread jacket cylinder and foil groove in brake outsourcing " engages ", make the outer left foil shoulder of outer mobile thread jacket cylinder can and can only in brake outsourcing sway in foil groove, namely outer mobile thread jacket cylinder can along foil groove sway in brake outsourcing, the right-hand member of outer mobile thread jacket cylinder is fixedly connected with a throwout sleeve left end ring, the cylindrical of throwout sleeve left end ring is connected with the outer foil shoulder of multiple left end ring, the outer foil shoulder cover of multiple left end ring to be stuck in multiple brake outsourcing in foil groove, the phase that matches the outer foil shoulder of multiple left end ring and foil groove in multiple brake outsourcing " engages ", the right flank of throwout sleeve left end ring fixes a throwout sleeve near the inner ring boundary position of axletree, the low order end end face of outer mobile screw thread inner sleeve is installed with a right spring, the right-hand member of right spring is fixedly mounted on the left surface of throwout sleeve left end ring, the effect of right spring is the negative thread low order end making the outside thread low order end of outer mobile screw thread inner sleeve abut in outer mobile thread jacket cylinder all the time, and after the negative thread that contrarotation on the negative thread that outer mobile screw thread inner sleeve moves thread jacket cylinder outside makes outer mobile screw thread inner sleeve move thread jacket cylinder is outside moved to the left, the outside thread low order end that the negative thread that right spring can make outer mobile screw thread inner sleeve move thread jacket cylinder outside when external force disappears rotating to move right is returned to outer mobile screw thread inner sleeve abuts in the negative thread low order end state of outer mobile thread jacket cylinder, throwout sleeve cover is stuck on the outer round surface of bearing external extension sleeve, the internal circular surfaces of throwout sleeve has foil groove in throwout sleeve, the outer round surface of bearing external extension sleeve has the outer foil shoulder of bearing external extension sleeve, in throwout sleeve, the outer foil shoulder of foil groove and the bearing external extension sleeve phase that matches " engages ", makes throwout sleeve energy and can only do sway at the outer round surface of bearing external extension sleeve, the outer round surface of throwout sleeve is installed with a left set collar of brute spring, the right flank of the left set collar of brute spring is installed with a brute spring, the right-hand member of brute spring is fixedly mounted on the left surface of the right set collar of brute spring, the right set collar of brute spring is fixedly mounted on the outer round surface of bearing external extension sleeve, and the effect of brute spring is the application force of buffering bearing external extension sleeve and throwout sleeve extruding brute spring or tensile strength spring, half section, the right side of bearing external extension sleeve is set on the left gear wheel of revolving wheel, revolving wheel, between the annular space between the right gear wheel of revolving wheel and long bearing, half section, the right side outer round surface of bearing external extension sleeve has outside thread, the internal circular surfaces of revolving wheel has negative thread, the phase that matches outside thread and the negative thread of revolving wheel of bearing external extension sleeve " engages ", rotating forward revolving wheel can make bearing external extension sleeve be moved to the left, contrarotation revolving wheel can make bearing external extension sleeve move right, the left gear wheel of revolving wheel and the right gear wheel of revolving wheel are fixed on the inwall of brake outsourcing, the effect of the left gear wheel of revolving wheel and the right gear wheel of revolving wheel limits revolving wheel to rotate around axletree and can not move the direction of axis line of ahead running wheel shaft, thus make to draw and rotate runner dynamic bearing external extension sleeve can be with to be moved to the left or to move right, bearing external extension sleeve, the left gear wheel of revolving wheel, revolving wheel, a long bearing is had between the right gear wheel of revolving wheel and axletree, the inner ring of long bearing is fixedly mounted on the outside face of axletree, the appearance surface cover of long bearing has bearing external extension sleeve, the outside face of long bearing has the outer foil shoulder of multiple long bearing, the internal circular surfaces of bearing external extension sleeve has foil groove in multiple bearing external extension sleeve, the phase that matches the outer foil shoulder of long bearing and foil groove in bearing external extension sleeve " engages ", make bearing external extension sleeve can and can only be moved to the left outside long bearing or move right, the left gear wheel of revolving wheel, the right gear wheel of revolving wheel is fixedly mounted on the inwall of brake outsourcing, brake outsourcing is fixedly mounted on vehicle frame, revolving wheel there is a revolving wheel draw bull stick, revolving wheel draws bull stick to stretch out brake outsourcing by the brake outsourcing arc opening of outsourcing of braking, revolving wheel draws the brake bracing wire on bull stick top to be connected with parking brake bracing wire by multiple track adjusting wheel, the right side of revolving wheel is installed with a revolving wheel pull back spring, the right-hand member of revolving wheel pull back spring is fixedly mounted on inside the right flank of brake outsourcing, the effect of revolving wheel pull back spring is after revolving wheel draws bull stick to draw to forward to revolving wheel to draw bull stick to draw to turn ultimate attainment position by the brake bracing wire that revolving wheel is driven at parking brake, when not needing re-use emergency brake bag and unclamp parking brake, after losing the pulling force effect of brake bracing wire, revolving wheel pull back spring can make revolving wheel reply contrarotation, thus revolving wheel pull back spring makes revolving wheel reply rotate and make bearing external extension sleeve move right, thus drive outer mobile thread jacket cylinder and outer mobile screw thread inner sleeve to move right, the outer attrition surface of outer mobile screw thread inner sleeve internal friction face and interior mobile screw thread bush is finally made to be separated, rub with mobile screw thread inner sleeve internal friction face except solution and the outer attrition surface of interior mobile screw thread bush and brake.
2, axletree can be major axis, also can be semiaxis.
the present invention compared with prior art has the following advantages:
1. the present invention be unpowered under emergency brake arrangement, do not need engine power, electric-powered, the outer power such as hydraulic power, Pneumatic pressure power.
2, the present invention is arranged on the wheel axostyle of automobile, does not affect existing brake gear, because be sleeve-type friction, so, take up room little.
3. emergency brake of the present invention does not form locking and the drift produced causes accident.
4. the present invention makes simply, and braking effect is good, and particularly emergency brake is effective.
6, the present invention as auxiliary brake, also can replace existing hand brake device.
7, make can open and close type for the present invention's two outer sleeves, thus the releasing after emergency brake is braked become easy, ensure to there will not be sleeve rub " locking " and cannot untie.
Accompanying drawing explanation
Fig. 1 is the axial section structural representation of the embodiment of the present invention;
Fig. 2 is A-A radial section schematic diagram embodiment illustrated in fig. 1;
Fig. 3 is buckle drawing state B-B radial section schematic diagram embodiment illustrated in fig. 1;
Fig. 4 is buckle releasing orientation B-B radial section schematic diagram embodiment illustrated in fig. 1;
Fig. 5 is C-C radial section schematic diagram embodiment illustrated in fig. 1;
Fig. 6 is D-D radial section schematic diagram embodiment illustrated in fig. 1;
Fig. 7 is P enlarged diagram embodiment illustrated in fig. 1;
Fig. 8 is Q enlarged diagram embodiment illustrated in fig. 2;
Fig. 9 is R enlarged diagram embodiment illustrated in fig. 2;
Figure 10 is S enlarged diagram embodiment illustrated in fig. 5.
In Fig. 1-10: 1, axletree 2, the left set collar 3 of left spring, left spring 4, the outer left foil shoulder 5 of outer mobile thread jacket cylinder, internal fixtion screw thread bush 6, interior mobile screw thread bush 7, outer mobile screw thread inner sleeve 8, outer mobile thread jacket cylinder 9, brake outsourcing 10, foil groove 11 in brake outsourcing, right spring 12, throwout sleeve left end ring 13, the outer foil shoulder 14 of left end ring, throwout sleeve 15, bearing external extension sleeve 16, the left set collar 17 of brute spring, brute spring 18, the right set collar 19 of brute spring, the left gear wheel 20 of revolving wheel, revolving wheel 21, the right gear wheel 22 of revolving wheel, revolving wheel pull back spring 23, long bearing 24, bearing bead 25, brake outsourcing arc opening 26, circular arc buckle 27, outer mobile screw thread inner sleeve half adapter shaft 28, outer mobile thread jacket cylinder half adapter shaft 29, circular arc buckle rotating shaft 30, return little spring 31, brake outsourcing arc groove 32, circular arc buckle pull bar 33, circular arc buckle bracing wire 34, foil groove 35 in throwout sleeve, the outer foil shoulder 36 of bearing external extension sleeve, the outer foil shoulder 37 of long bearing, foil groove 38 in bearing external extension sleeve, revolving wheel draws bull stick 39, brake bracing wire 40, revolving wheel draws bull stick to draw a turn ultimate attainment position 41, internal fixtion screw thread bush outside thread 42, interior mobile screw thread bush negative thread 43, the outer attrition surface 44 of interior mobile screw thread bush, outer mobile screw thread inner sleeve internal friction face 45, outer mobile screw thread inner sleeve outside thread 46, outer mobile thread jacket cylinder negative thread 47, outer mobile screw thread inner sleeve two halves cylinder opening and closing mouth 48, the left point shoulder 49 of outer mobile thread jacket cylinder, outer mobile thread jacket cylinder two halves cylinder opening and closing mouth 50, outer mobile thread jacket cylinder left point shoulder upper right inclined-plane 51, outer mobile thread jacket cylinder right point shoulder lower inclined plane 52, circular arc buckle wedge angle groove 53, the right point shoulder 54 of outer mobile thread jacket cylinder, sharp groove in circular arc buckle.
Detailed description of the invention
In the embodiment shown in Fig. 1-10: friction self-tightening type emergency brake bag can be suppressed by the two screw thread bush of opening and closing, comprise the outer mobile screw thread inner sleeve 7 of mobile screw thread bush 6, and an outer mobile thread jacket cylinder 8 in the internal fixtion screw thread bush 5, that is sleeved on axletree 1, it is characterized in that: internal fixtion screw thread bush 5 is fixedly mounted on axletree 1, internal fixtion screw thread bush 5 and axletree 1 coaxial inner conductor rotate, the outside face of internal fixtion screw thread bush 5 has internal fixtion screw thread bush outside thread 41, interior mobile screw thread bush 6 cover is screwed on the outside thread of internal fixtion screw thread bush 5, the inside face of interior mobile screw thread bush 6 has interior mobile screw thread bush negative thread 42, internal fixtion screw thread bush outside thread 41 and interior mobile screw thread bush negative thread 42 match, namely internal fixtion screw thread bush 5 can rotate forward and interior mobile screw thread bush 6 be moved right on the outside thread of internal fixtion screw thread bush 5 or contrarotation is moved to the left on the negative thread of interior mobile screw thread bush 6, rotate forward as being seen as clickwise from the right side in figure left, in other words, mobile screw thread bush 6 rotates forward and interior mobile screw thread bush 6 is moved to the left on the outside thread of internal fixtion screw thread bush 5 on the outside thread of internal fixtion screw thread bush 5, or the contrarotation on the outside thread of internal fixtion screw thread bush 5 of interior mobile screw thread bush 6 makes interior mobile screw thread bush 6 move right on the outside thread of internal fixtion screw thread bush 5, the high order end of internal fixtion screw thread bush 5 has a left set collar 2 of left spring, a left spring 3 is installed with between the right flank of the left set collar of left spring 2 and the left side of interior mobile screw thread bush 6, the effect of left spring 3 makes the negative thread high order end of interior mobile screw thread bush 6 screw the outside thread high order end of top to internal fixtion screw thread bush 5, and when internal fixtion screw thread bush 5 rotates forward i.e. dextrorotation relative to interior mobile screw thread bush 6 then after making interior mobile screw thread bush 6 move right on the outside thread of internal fixtion screw thread bush 5, when external force disappears, left spring 3 can make interior mobile screw thread bush 6 on the outside thread of internal fixtion screw thread bush 5, be moved to the left the negative thread high order end being returned to interior mobile screw thread bush 6 and screw the state of top to the outside thread high order end of internal fixtion screw thread bush 5, the outside face of interior mobile screw thread bush 6 has the outer attrition surface 43 of interior mobile screw thread bush, the outside face of the outer attrition surface 43 of interior mobile screw thread bush is a circular conical surface, the left end radius of circle of circular conical surface is greater than the right-hand member radius of circle of circular conical surface, and the angle of outer attrition surface 43 conical surface of interior mobile screw thread bush and axletree 1 axial line is α, outer attrition surface 43 proximity of interior mobile screw thread bush has an outer mobile screw thread inner sleeve 7, outer mobile screw thread inner sleeve 7 is made up of two semicircular cylinders, two semicircular cylinders are connected by multiple outer mobile screw thread inner sleeve half adapter shaft 27, the communication port be made up of two semicircular cylinders has two interfaces, the interface connected by multiple outer mobile screw thread inner sleeve half adapter shaft 27 is rotate mouth, another interface is can opening and closing mouth, two semicircular cylinders can rotate around multiple outer mobile screw thread inner sleeve half adapter shaft 27, and make two semicircular cylinders can do on-off action around outer mobile screw thread inner sleeve half adapter shaft 27, the line of two semicircular cylinders, two opening engage positions of outer mobile screw thread inner sleeve 7 becomes 45o angle with the horizontal surface crossing axletree 1 central axis, and rotate mouth position ratio can opening and closing mouth position low, the inner headed face of outer mobile screw thread inner sleeve 7 is outer mobile screw thread inner sleeve internal friction face 44, the inside face in outer mobile screw thread inner sleeve internal friction face 44 is a circular conical surface, the left end radius of circle of circular conical surface is greater than the right-hand member radius of circle of circular conical surface, the angle of outer mobile screw thread inner sleeve internal friction face 44 conical surface and axletree 1 axial line is β, α+0.5o≤β≤α+6o, the outside face of outer mobile screw thread inner sleeve 7 has outer mobile screw thread inner sleeve outside thread 45, outer mobile screw thread inner sleeve outside thread 45 has screwed outer mobile thread jacket cylinder 8, the internal circular surfaces of outer mobile thread jacket cylinder 8 has outer mobile thread jacket cylinder negative thread 46, the phase that matches outer mobile screw thread inner sleeve outside thread 45 and outer mobile thread jacket cylinder negative thread 46 " engages ", and outer mobile screw thread inner sleeve outside thread 45 can move outside on negative thread that contrarotation on thread jacket cylinder negative thread 46 makes outer mobile screw thread inner sleeve 7 move thread jacket cylinder 8 outside and is moved to the left, that is the outer mobile thread jacket cylinder negative thread 46 of outer mobile thread jacket cylinder 8 is contrary with the hand of spiral of the interior mobile screw thread bush negative thread 42 of interior mobile screw thread bush, the outer mobile screw thread inner sleeve outside thread 45 of outer mobile screw thread inner sleeve 7 is contrary with the hand of spiral of the internal fixtion screw thread bush outside thread 41 of internal fixtion screw thread bush 5, outer mobile thread jacket cylinder 8 is made up of two semicircular cylinders, two semicircular cylinders are connected by multiple outer mobile thread jacket cylinder half adapter shaft 28, the communication port be made up of two semicircular cylinders has two interfaces, the interface connected by multiple outer mobile thread jacket cylinder half adapter shaft 28 is rotate mouth, another interface is can opening and closing mouth, two semicircular cylinders can rotate around multiple outer mobile thread jacket cylinder half adapter shaft 28, and make two semicircular cylinders can do on-off action around multiple outer mobile thread jacket cylinder half adapter shaft 28, the line of two semicircular cylinders, two opening engage positions of outer mobile thread jacket cylinder 8 becomes 45o angle with the horizontal surface of axletree 1, and rotate mouth position ratio can opening and closing mouth position low, outer mobile thread jacket cylinder 8 can opening and closing mouth position and outer mobile screw thread inner sleeve 7 can opening and closing mouth position corresponding, the rotation mouth position of outer mobile thread jacket cylinder 8 is corresponding with the rotation mouth position of outer mobile screw thread inner sleeve 7, two semicircular cylinders of outer mobile thread jacket cylinder 8 can rotate around respective half adapter shaft with two semicircular cylinders of outer mobile screw thread inner sleeve 7 simultaneously do on-off action simultaneously, now outer mobile screw thread inner sleeve outside thread 45 " engages " constant with outer mobile thread jacket cylinder negative thread 46 phase, two semicircular cylinders of outer mobile thread jacket cylinder 8 a point shoulder can be respectively installed opening and closing mouth outer ledge, be respectively outer mobile thread jacket cylinder left point shoulder 48 and the right point shoulder 53 of outer mobile thread jacket cylinder, it is that the left point of outer mobile thread jacket cylinder takes on upper right inclined-plane 50 that the left point shoulder 48 of outer mobile thread jacket cylinder and the right point of outer mobile thread jacket cylinder take on 53 relative inclined-planes, it is that the right point of outer mobile thread jacket cylinder takes on lower inclined plane 51 that the right point shoulder 53 of outer mobile thread jacket cylinder and the left point of outer mobile thread jacket cylinder take on 48 relative inclined-planes, it is parallel to each other that outer mobile thread jacket cylinder left point shoulder upper right inclined-plane 50 and the right point of outer mobile thread jacket cylinder take on lower inclined plane 51, and it is overlapping with the 45o omnibearing line of axletree 1, the lateral surface of the left point shoulder 48 of outer mobile thread jacket cylinder takes on 45o angle, 50 one-tenth, upper right inclined-plane with the left point of outer mobile thread jacket cylinder, the lateral surface of the right point shoulder 53 of outer mobile thread jacket cylinder takes on lower inclined plane 51 one-tenth 45o angle with the right point of outer mobile thread jacket cylinder, thus when two semicircular cylinders of outer mobile thread jacket cylinder 8 are closed, the lateral surface that the lateral surface of the left point shoulder 48 of outer mobile thread jacket cylinder and the right point of outer mobile thread jacket cylinder take on 53 forms 90o angle, outer mobile thread jacket cylinder 8 two semicircular cylinders can have a circular arc buckle 26 outside opening and closing mouth, the lower end of circular arc buckle 26 is arranged on the outside face of outer mobile thread jacket cylinder 8, and be connected by circular arc buckle rotating shaft 29 with outer mobile thread jacket cylinder 8, circular arc buckle 26 can be rotated around circular arc buckle rotating shaft 29, two points at opening and closing mouth edge can takeing on corresponding position and have sharp groove 54 in a circular arc buckle of medial surface and outer mobile thread jacket cylinder 8 two semicircular cylinders of circular arc buckle 26, in circular arc buckle sharp groove 54 interior angle center line and outer mobile thread jacket cylinder 8 two semicircular cylinders can the closed line of opening and closing mouth overlapping, in circular arc buckle, the interior angle of sharp groove 54 is Ф, 90o < Ф < 92o, there is a circular arc buckle pull bar 32 upper end of circular arc buckle 26, circular arc buckle pull bar 32 stretches out brake outsourcing 9 from the brake outsourcing arc groove 31 of brake outsourcing 9, there is circular arc buckle bracing wire 33 on the top of circular arc buckle pull bar 32, circular arc buckle bracing wire 33 is connected with brake bracing wire 39 by multiple track adjusting wheel, circular arc buckle pull bar 32 side opposing with circular arc buckle bracing wire 33 is provided with a return little spring 30, the other end of return little spring 30 is fixedly mounted on the notch of brake outsourcing arc groove 31, when straining parking brake and drive brake bracing wire 39, brake bracing wire 39 drives circular arc buckle bracing wire 33, make circular arc buckle 26 when circular arc buckle rotating shaft 29 rotates, in circular arc buckle inside circular arc buckle 26 sharp groove 54 just cover be buckled in outer mobile thread jacket cylinder left point shoulder 48 lateral surface and the right point of outer mobile thread jacket cylinder take on the lateral surface of 53, and along with groove 54 sharp in circular arc buckle more withhold move outside thread jacket cylinder left point shoulder 48 lateral surface and the right point of outer mobile thread jacket cylinder take on the lateral surface of 53, in circular arc buckle, more the lateral surface of the left point shoulder 48 of the outer mobile thread jacket cylinder of extruding and the right point of outer mobile thread jacket cylinder take on the lateral surface of 53 to sharp groove 54, and make the outer mobile thread jacket cylinder left point shoulder upper right inclined-plane 50 of outer mobile thread jacket cylinder left point shoulder 48 take on lower inclined plane 51 the closer to fitting together with the right point of outer mobile thread jacket cylinder that the right point of outer mobile thread jacket cylinder takes on 53, thus two semicircular cylinders of mobile thread jacket cylinder 8 and two semicircular cylinders of outer mobile screw thread inner sleeve 7 no longer unclamp outside pinning, when unclamping after parking brake loosens circular arc buckle bracing wire 33, because return little spring 30 spring-force driven dual makes circular arc buckle pull bar 32 be returned to the position before pulling the hand brake, and the lateral surface making the inside face of sharp groove 54 in the circular arc buckle in circular arc buckle 26 and the left point of outer mobile thread jacket cylinder take on 48 is separated with the lateral surface that the right point of outer mobile thread jacket cylinder takes on 53, thus two semicircular cylinders of two semicircular cylinders of outer mobile thread jacket cylinder 8 and outer mobile screw thread inner sleeve 7 are unclamped naturally, and then remove emergency brake, multiple outer mobile thread jacket cylinder outer left foil shoulder 4 is installed near the outside face left end of outer mobile thread jacket cylinder 8, the medial surface of brake outsourcing 9 has foil groove 10 in multiple brake outsourcing, in multiple brake outsourcings that outer left foil shoulder 4 cover of outer mobile thread jacket cylinder is stuck in brake outsourcing 9 medial surface on foil groove 10, and the phase that matches the outer left foil shoulder 4 of outer mobile thread jacket cylinder and foil groove 10 in brake outsourcing " engages ", make the outer left foil shoulder 4 of outer mobile thread jacket cylinder can and can only in brake outsourcing sway in foil groove 10, namely outer mobile thread jacket cylinder 8 can along foil groove 10 sway in brake outsourcing, the right-hand member of outer mobile thread jacket cylinder 8 is fixedly connected with a throwout sleeve left end ring 12, the cylindrical of throwout sleeve left end ring 12 is connected with the outer foil shoulder 13 of multiple left end ring, outer foil shoulder 13 cover of multiple left end ring to be stuck in multiple brake outsourcing in foil groove 10, the phase that matches the outer foil shoulder 13 of multiple left end ring and foil groove 10 in multiple brake outsourcing " engages ", the right flank of throwout sleeve left end ring 12 fixes a throwout sleeve 14 near the inner ring boundary position of axletree 1, the low order end end face of outer mobile screw thread inner sleeve 7 is installed with a right spring 11, the right-hand member of right spring 11 is fixedly mounted on the left surface of throwout sleeve left end ring 12, the effect of right spring 11 is the negative thread low order ends making the outside thread low order end of outer mobile screw thread inner sleeve 7 abut in outer mobile thread jacket cylinder 8 all the time, and after the negative thread that contrarotation on the negative thread that outer mobile screw thread inner sleeve 7 moves thread jacket cylinder 8 outside makes outer mobile screw thread inner sleeve 7 move thread jacket cylinder 8 is outside moved to the left, the outside thread low order end that the negative thread that right spring 11 can make outer mobile screw thread inner sleeve 7 move thread jacket cylinder 8 outside when external force disappears rotating to move right is returned to outer mobile screw thread inner sleeve 7 abuts in the negative thread low order end state of outer mobile thread jacket cylinder 8, throwout sleeve 14 cover is stuck on the outer round surface of bearing external extension sleeve 15, the internal circular surfaces of throwout sleeve 14 has foil groove 34 in throwout sleeve, the outer round surface of bearing external extension sleeve 15 has the outer foil shoulder 35 of bearing external extension sleeve, in throwout sleeve, the outer foil shoulder 35 of foil groove 34 and the bearing external extension sleeve phase that matches " engage ", makes throwout sleeve 14 energy and can only do sway at the outer round surface of bearing external extension sleeve 15, the outer round surface of throwout sleeve 14 is installed with a left set collar 16 of brute spring, the right flank of the left set collar 16 of brute spring is installed with a brute spring 17, the right-hand member of brute spring 17 is fixedly mounted on the left surface of the right set collar 18 of brute spring, the right set collar 18 of brute spring is fixedly mounted on the outer round surface of bearing external extension sleeve 15, and the effect of brute spring 17 is application forces that buffering bearing external extension sleeve 15 and throwout sleeve 14 extrude brute spring 17 or tensile strength spring 17, half section, the right side of bearing external extension sleeve 15 is set on the left gear wheel 19 of revolving wheel, revolving wheel 20, between the annular space between the right gear wheel 21 of revolving wheel and long bearing 23, half section, the right side outer round surface of bearing external extension sleeve 15 has outside thread, the internal circular surfaces of revolving wheel 20 has negative thread, the phase that matches outside thread and the negative thread of revolving wheel 20 of bearing external extension sleeve 15 " engages ", rotating forward revolving wheel 20 can make bearing external extension sleeve 15 be moved to the left, contrarotation revolving wheel 20 can make bearing external extension sleeve 15 move right, the left gear wheel of revolving wheel 19 and the right gear wheel 21 of revolving wheel are fixed on the inwall of brake outsourcing 9, the effect of the left gear wheel of revolving wheel 19 and the right gear wheel 21 of revolving wheel limits revolving wheel 20 to rotate around axletree 1 and can not move the direction of axis line of ahead running wheel shaft 1, thus make to draw and rotate runner 20 dynamic bearing external extension sleeve 15 can be with to be moved to the left or to move right, bearing external extension sleeve 15, the left gear wheel 19 of revolving wheel, revolving wheel 20, a long bearing 23 is had between the right gear wheel 21 of revolving wheel and axletree 1, the inner ring of long bearing 23 is fixedly mounted on the outside face of axletree 1, the appearance surface cover of long bearing 23 has bearing external extension sleeve 15, the outside face of long bearing 23 has the outer foil shoulder 36 of multiple long bearing, the internal circular surfaces of bearing external extension sleeve 15 has foil groove 37 in multiple bearing external extension sleeve, the phase that matches the outer foil shoulder 36 of long bearing and foil groove 37 in bearing external extension sleeve " engages ", make bearing external extension sleeve 15 can and can only be moved to the left outside long bearing 23 or move right, the left gear wheel 19 of revolving wheel, the right gear wheel 21 of revolving wheel is fixedly mounted on the inwall of brake outsourcing 9, brake outsourcing 9 is fixedly mounted on vehicle frame, revolving wheel 20 there is a revolving wheel draw bull stick 38, revolving wheel draws bull stick 38 to stretch out brake outsourcing 9 by the brake outsourcing arc opening 25 of brake outsourcing 9, revolving wheel draws the brake bracing wire 39 on bull stick 38 top to be connected with parking brake bracing wire by multiple track adjusting wheel, the right side of revolving wheel 20 is installed with a revolving wheel pull back spring 22, the right-hand member of revolving wheel pull back spring 22 is fixedly mounted on inside the right flank of brake outsourcing 9, the effect of revolving wheel pull back spring 22 is after revolving wheel draws bull stick 38 to draw to forward to revolving wheel to draw bull stick to draw to turn ultimate attainment position 40 by the brake bracing wire 39 that revolving wheel 20 is driven at parking brake, when not needing re-use emergency brake bag and unclamp parking brake, after losing the pulling force effect of brake bracing wire 39, revolving wheel pull back spring 22 can make revolving wheel 20 reply contrarotation, thus revolving wheel pull back spring 22 makes revolving wheel 20 reply rotate and make bearing external extension sleeve 15 move right, thus drive outer mobile thread jacket cylinder 8 and outer mobile screw thread inner sleeve 7 to move right, the outer attrition surface 43 of outer mobile screw thread inner sleeve internal friction face 44 and interior mobile screw thread bush is finally made to be separated, to rub with the outer attrition surface 43 of interior mobile screw thread bush with screw thread inner sleeve internal friction face 44 mobile except solution and brake.
2, friction self-tightening type emergency brake bag can be suppressed by the two screw thread bush of opening and closing as claimed in claim 1, it is characterized in that: when automobile moves forward in process, when needing to pull emergency brake to pack tightly sudden stop, pull brake bracing wire 39 to the right, driven rotary wheel 20 rotates forward and bearing external extension sleeve 15 is moved to the left, pull brake bracing wire 39 to drive circular arc buckle bracing wire 33 to the right simultaneously, circular arc buckle bracing wire 33 drives circular arc buckle pull bar 32 to pull circular arc buckle 26, sharp groove 54 in the circular arc buckle of circular arc buckle 26 medial surface is made to block the outer inclined-plane of the outer mobile thread jacket cylinder of pressure left point shoulder 48 and the right point shoulder 53 of outer mobile thread jacket cylinder, outer mobile thread jacket cylinder left point shoulder upper right inclined-plane 50 and outer mobile thread jacket cylinder right point shoulder lower inclined plane 51 are sticked together, thus make two and half of two and half of outer mobile thread jacket cylinder 8 closed and outer mobile screw thread inner sleeves 7 to close, bearing external extension sleeve 15 is moved to the left and compresses brute spring 17 left, brute spring 17 is moved to the left together with outer mobile thread jacket cylinder 8 and outer mobile screw thread inner sleeve 7 by the throwout sleeve 14 that the spring-return power after compressing promotes again brute spring 17 left end, thus the outer attrition surface 43 of interior mobile screw thread bush making the outer mobile screw thread inner sleeve internal friction face 44 of outer mobile screw thread inner sleeve 7 abut in interior mobile screw thread bush 6 produces friction, because automobile is in the process of moving forward, the axletree 1 of automobile rotates forward namely to see that axletree 1 is for clickwise from right to left, again because the internal fixtion screw thread bush 5 be fixed on axletree 1 can not do sway, can not rotate around axletree 1 with bearing external extension sleeve 15 and outer mobile thread jacket cylinder 8, so move after screw thread inner sleeve internal friction face 44 abuts in the outer attrition surface 43 of interior mobile screw thread bush produces friction outside, this is just equivalent to make interior mobile screw thread bush 6 do contrarotation relative to axletree 1 and internal fixtion screw thread bush 5, thus interior mobile screw thread bush 6 is rotated on the outside thread of internal fixtion screw thread bush 5 move right, interior mobile screw thread bush 6 rotates the power that moves right on the outside thread of internal fixtion screw thread bush 5 makes again the outer attrition surface 43 of interior mobile screw thread bush ride over the application force increasing in outer mobile screw thread inner sleeve internal friction face 44 conversely, thus the outer attrition surface 43 of interior mobile screw thread bush is strengthened with the friction of the 44 liang of attrition surfaces in outer mobile screw thread inner sleeve internal friction face, simultaneously, the application force that the outer attrition surface 43 of interior mobile screw thread bush rides over outer mobile screw thread inner sleeve internal friction face 44 also compresses brute spring 17 to the right, because the right set collar 18 of brute spring be connected with brute spring 17 right-hand member is fixedly mounted on bearing external extension sleeve 15, and bearing external extension sleeve 15 is blocked by the negative thread that brake bracing wire 39 hauls motionless revolving wheel 20 and makes bearing external extension sleeve 15 not move right, the friction brake weight so just making outer mobile screw thread inner sleeve internal friction face 44 abut in the outer attrition surface 43 of interior mobile screw thread bush by the spring-force driven dual of brute spring 17 is cushioned, constantly brute spring 17 is compressed to the right along with interior mobile screw thread bush 6 continues to rotate constantly to move right on the outside thread of internal fixtion screw thread bush 5, the compressive force that brute spring 17 is born is increasing, brute spring 17 gives the antagonistic force left in outer mobile thread jacket cylinder 8 and outer mobile screw thread inner sleeve internal friction face 44 also increasing, outer mobile screw thread inner sleeve internal friction face 44 is so just made to abut in the friction that the outer attrition surface 43 of interior mobile screw thread bush produces also increasing, and then axletree 1 brake weight produced is also increasing, the friction of this increasing friction impels again interior mobile screw thread bush 6 on the outside thread of internal fixtion screw thread bush 5, produce the power moved right further, the friction of the outer attrition surface 43 of outer mobile screw thread inner sleeve internal friction face 44 and interior mobile screw thread bush is made to become increasing, this increasing friction constantly acts on again axletree 1 pair of axletree 1 and brakes, to the last outer mobile screw thread inner sleeve internal friction face 44 " is engaged " with the friction of the outer attrition surface 43 of interior mobile screw thread bush and axletree 1 is stopped the rotation, complete the emergency brake under automobile forward travel state, when unclamp parking brake loosen brake bracing wire 39 after, revolving wheel pull back spring 22 effect makes revolving wheel 20 turn round and is with dynamic bearing external extension sleeve 15 to move right, bearing external extension sleeve 15 moves right tensile strength spring 17, and make throwout sleeve 14 be subject to a pulling force effect to the right by force transmission to the throwout sleeve 14 of brute spring 17 left end, unclamp parking brake loosen brake bracing wire 39 while, circular arc buckle bracing wire 33 is loosened in drive, loosening circular arc buckle bracing wire 33 just makes circular arc buckle pull bar 32 and circular arc buckle 26 under the effect of return little spring 30 restoring force, sharp groove 54 in the circular arc buckle of circular arc buckle 26 is made to take on the outer inclined-plane of 53 away from the outer mobile thread jacket cylinder blocked left point shoulder 48 and the right point of outer mobile thread jacket cylinder, outer mobile thread jacket cylinder left point shoulder upper right inclined-plane 50 is separated with outer mobile thread jacket cylinder right point shoulder lower inclined plane 51, thus outer mobile screw thread inner sleeve internal friction face 44 is unclamped from attrition surface 43 interior mobile screw thread bush, and then make to be moved right by the outer mobile thread jacket cylinder 8 under brute spring 17 to the right spring-force driven dual and outer mobile screw thread inner sleeve 7, the outer attrition surface 43 of outer mobile screw thread inner sleeve internal friction face 44 and interior mobile screw thread bush is finally made to be separated, remove emergency brake state to complete.
3, friction self-tightening type emergency brake bag can be suppressed by the two screw thread bush of opening and closing as claimed in claim 1, it is characterized in that: when automobile falls back in driving process backward, when needing to pull emergency brake to pack tightly sudden stop, when needing to pull emergency brake to pack tightly sudden stop, pull brake bracing wire 39 to the right, driven rotary wheel 20 rotates forward and bearing external extension sleeve 15 is moved to the left, pull brake bracing wire 39 to drive circular arc buckle bracing wire 33 to the right simultaneously, circular arc buckle bracing wire 33 drives circular arc buckle pull bar 32 to pull circular arc buckle 26, sharp groove 54 in the circular arc buckle of circular arc buckle 26 medial surface is made to block the outer inclined-plane of the outer mobile thread jacket cylinder of pressure left point shoulder 48 and the right point shoulder 53 of outer mobile thread jacket cylinder, outer mobile thread jacket cylinder left point shoulder upper right inclined-plane 50 and outer mobile thread jacket cylinder right point shoulder lower inclined plane 51 are sticked together, thus make two and half of two and half of outer mobile thread jacket cylinder 8 closed and outer mobile screw thread inner sleeves 7 to close, bearing external extension sleeve 15 is moved to the left and compresses brute spring 17 left, brute spring 17 is moved to the left together with outer mobile thread jacket cylinder 8 and outer mobile screw thread inner sleeve 7 by the throwout sleeve 14 that the spring-return power after compressing promotes again brute spring 17 left end, thus the outer attrition surface 43 of interior mobile screw thread bush making the outer mobile screw thread inner sleeve internal friction face 44 of outer mobile screw thread inner sleeve 7 abut in interior mobile screw thread bush 6 produces friction, because automobile is falling back in driving process backward, the axletree 1 of automobile is that namely contrarotation sees that axletree 1 is for left-hand revolution from right to left, again because the internal fixtion screw thread bush 5 be fixed on axletree 1 can not do sway, can not rotate around axletree 1 with bearing external extension sleeve 15 and outer mobile thread jacket cylinder 8, now, mobile screw thread bush 6 has been screwed in the externally threaded high order end of internal fixtion screw thread bush 5, so move after screw thread inner sleeve internal friction face 44 abuts in the outer attrition surface 43 of interior mobile screw thread bush produces friction outside, this just makes interior mobile screw thread bush 6 do contrarotation with axletree 1 together with internal fixtion screw thread bush 5, thus abut in the friction on the outer attrition surface 43 of interior mobile screw thread bush by outer mobile screw thread inner sleeve internal friction face 44, on the negative thread driving outer mobile screw thread inner sleeve 7 to move thread jacket cylinder 8 outside, contrarotation makes outer mobile thread jacket cylinder 8 move right, outer mobile thread jacket cylinder 8 moves right and compresses brute spring 17 to the right again conversely, because the right set collar 18 of brute spring be connected with brute spring 17 right-hand member is fixedly mounted on bearing external extension sleeve 15, and bearing external extension sleeve 15 is blocked can not move right by the negative thread that brake bracing wire 39 hauls motionless revolving wheel 20, the friction brake weight so just making outer mobile screw thread inner sleeve internal friction face 44 abut in the outer attrition surface 43 of interior mobile screw thread bush by the spring-force driven dual of brute spring 17 is cushioned, constantly brute spring 17 is compressed to the right along with outer mobile thread jacket cylinder 8 constantly moves right, the compressive force that brute spring 17 is born is increasing, brute spring 17 gives the antagonistic force left in outer mobile thread jacket cylinder 8 and outer mobile screw thread inner sleeve internal friction face 44 also increasing, outer mobile screw thread inner sleeve internal friction face 44 is so just made to abut in the friction that the outer attrition surface 43 of interior mobile screw thread bush produces also increasing, and then axletree 1 brake weight produced is also increasing, the power that the friction of this increasing friction impels again outer mobile thread jacket cylinder 8 to move right further, the friction of the outer attrition surface 43 of outer mobile screw thread inner sleeve internal friction face 44 and interior mobile screw thread bush is made to become increasing, this increasing friction constantly acts on again axletree 1 pair of axletree 1 and brakes, to the last outer mobile screw thread inner sleeve internal friction face 44 " is engaged " with the friction of the outer attrition surface 43 of interior mobile screw thread bush and axletree 1 is stopped the rotation, complete the emergency brake under automobile forward travel state, the emergency brake status releasing of car reversed is the same with the emergency brake status releasing process of advance.

Claims (3)

1. can suppress friction self-tightening type emergency brake bag by the two screw thread bush of opening and closing, comprise the internal fixtion screw thread bush (5) be sleeved on axletree (1), mobile screw thread bush (6) in, an outer mobile screw thread inner sleeve (7) and one mobile thread jacket cylinder (8) outward, it is characterized in that: internal fixtion screw thread bush (5) is fixedly mounted on axletree (1), internal fixtion screw thread bush (5) and axletree (1) coaxial inner conductor rotate, the outside face of internal fixtion screw thread bush (5) has internal fixtion screw thread bush outside thread (41), interior mobile screw thread bush (6) cover is screwed on the outside thread of internal fixtion screw thread bush (5), the inside face of interior mobile screw thread bush (6) has interior mobile screw thread bush negative thread (42), internal fixtion screw thread bush outside thread (41) and interior mobile screw thread bush negative thread (42) match, namely internal fixtion screw thread bush (5) can rotate forward and interior mobile screw thread bush (6) be moved right on the outside thread of internal fixtion screw thread bush (5) or contrarotation is moved to the left on the negative thread of interior mobile screw thread bush (6), rotate forward as being seen as clickwise from the right side in figure left, in other words, mobile screw thread bush (6) rotates forward and interior mobile screw thread bush (6) is moved to the left on the outside thread of internal fixtion screw thread bush (5) on the outside thread of internal fixtion screw thread bush (5), or the contrarotation on the outside thread of internal fixtion screw thread bush (5) of interior mobile screw thread bush (6) makes interior mobile screw thread bush (6) move right on the outside thread of internal fixtion screw thread bush (5), the high order end of internal fixtion screw thread bush (5) has a left set collar of left spring (2), a left spring (3) is installed with between the right flank of the left set collar of left spring (2) and the left side of interior mobile screw thread bush (6), the effect of left spring (3) makes the negative thread high order end of interior mobile screw thread bush (6) screw the outside thread high order end of top to internal fixtion screw thread bush (5), and when internal fixtion screw thread bush (5) to rotate forward i.e. dextrorotation then after making interior mobile screw thread bush (6) move right on the outside thread of internal fixtion screw thread bush (5) relative to interior mobile screw thread bush (6), when external force disappears, left spring (3) can make interior mobile screw thread bush (6) on the outside thread of internal fixtion screw thread bush (5), be moved to the left the negative thread high order end being returned to interior mobile screw thread bush (6) and screw the state of top to the outside thread high order end of internal fixtion screw thread bush (5), the outside face of interior mobile screw thread bush (6) has the outer attrition surface (43) of interior mobile screw thread bush, the outside face of the outer attrition surface (43) of interior mobile screw thread bush is a circular conical surface, the left end radius of circle of circular conical surface is greater than the right-hand member radius of circle of circular conical surface, and the angle of outer attrition surface (43) conical surface of interior mobile screw thread bush and axletree (1) axial line is α, outer attrition surface (43) proximity of interior mobile screw thread bush has an outer mobile screw thread inner sleeve (7), outer mobile screw thread inner sleeve (7) is made up of two semicircular cylinders, two semicircular cylinders are connected by multiple outer mobile screw thread inner sleeve half adapter shaft (27), the communication port be made up of two semicircular cylinders has two interfaces, the interface connected by multiple outer mobile screw thread inner sleeves half adapter shaft (27) is for rotating mouth, another interface is can opening and closing mouth, two semicircular cylinders can rotate around multiple outer mobile screw thread inner sleeve half adapter shaft (27), and make two semicircular cylinders can do on-off action around outer mobile screw thread inner sleeve half adapter shaft (27), the line of two semicircular cylinders, two opening engage positions of outer mobile screw thread inner sleeve (7) becomes 45o angle with the horizontal surface crossing axletree (1) central axis, and rotate mouth position ratio can opening and closing mouth position low, the inner headed face of outer mobile screw thread inner sleeve (7) is outer mobile screw thread inner sleeve internal friction face (44), the inside face of outer mobile screw thread inner sleeve internal friction face (44) is a circular conical surface, the left end radius of circle of circular conical surface is greater than the right-hand member radius of circle of circular conical surface, the angle of outer mobile screw thread inner sleeve internal friction face (44) conical surface and axletree (1) axial line is β, α+0.5o≤β≤α+6o, the outside face of outer mobile screw thread inner sleeve (7) has outer mobile screw thread inner sleeve outside thread (45), outer mobile screw thread inner sleeve outside thread (45) has screwed outer mobile thread jacket cylinder (8), the internal circular surfaces of outer mobile thread jacket cylinder (8) has outer mobile thread jacket cylinder negative thread (46), outer mobile screw thread inner sleeve outside thread (45) and outer mobile thread jacket cylinder negative thread (46) phase that matches " engages ", and outer mobile screw thread inner sleeve outside thread (45) can be moved outside on negative thread that the upper contrarotation of thread jacket cylinder negative thread (46) makes outer mobile screw thread inner sleeve (7) move thread jacket cylinder (8) outside and is moved to the left, that is the outer outer mobile thread jacket cylinder negative thread (46) of mobile thread jacket cylinder (8) is contrary with the hand of spiral of the interior mobile screw thread bush negative thread (42) of interior mobile screw thread bush, the outer mobile screw thread inner sleeve outside thread (45) of outer mobile screw thread inner sleeve (7) is contrary with the hand of spiral of the internal fixtion screw thread bush outside thread (41) of internal fixtion screw thread bush (5), outer mobile thread jacket cylinder (8) is made up of two semicircular cylinders, two semicircular cylinders are connected by multiple outer mobile thread jacket cylinder half adapter shaft (28), the communication port be made up of two semicircular cylinders has two interfaces, the interface connected by multiple outer mobile thread jacket cylinders half adapter shaft (28) is for rotating mouth, another interface is can opening and closing mouth, two semicircular cylinders can rotate around multiple outer mobile thread jacket cylinder half adapter shaft (28), and make two semicircular cylinders can do on-off action around multiple outer mobile thread jacket cylinders half adapter shaft (28), the line of two semicircular cylinders, two opening engage positions of outer mobile thread jacket cylinder (8) becomes 45o angle with the horizontal surface of axletree (1), and rotate mouth position ratio can opening and closing mouth position low, outer mobile thread jacket cylinder (8) can opening and closing mouth position and outer mobile screw thread inner sleeve (7) can opening and closing mouth position corresponding, the rotation mouth position of outer mobile thread jacket cylinder (8) is corresponding with the rotation mouth position of outer mobile screw thread inner sleeve (7), two semicircular cylinders of outer mobile thread jacket cylinder (8) can rotate around respective half adapter shaft with two semicircular cylinders of outer mobile screw thread inner sleeve (7) simultaneously do on-off action simultaneously, now outer mobile screw thread inner sleeve outside thread (45) " is engaged " constant with outer mobile thread jacket cylinder negative thread (46) phase, two semicircular cylinders of outer mobile thread jacket cylinder (8) a point shoulder can be respectively installed opening and closing mouth outer ledge, be respectively left point shoulder (48) of outer mobile thread jacket cylinder and right point shoulder (53) of outer mobile thread jacket cylinder, it is that the left point of outer mobile thread jacket cylinder takes on upper right inclined-plane (50) that left point shoulder (48) of outer mobile thread jacket cylinder takes on (53) relative inclined-plane with the right point of outer mobile thread jacket cylinder, it is that the right point of outer mobile thread jacket cylinder takes on lower inclined plane (51) that right point shoulder (53) of outer mobile thread jacket cylinder takes on (48) relative inclined-plane with the left point of outer mobile thread jacket cylinder, it is parallel to each other that left point shoulder upper right inclined-plane (50) of outer mobile thread jacket cylinder and the right point of outer mobile thread jacket cylinder take on lower inclined plane (51), and it is overlapping with the 45o omnibearing line of axletree (1), the lateral surface of left point shoulder (48) of outer mobile thread jacket cylinder is takeed on upper right inclined-plane (50) with the left point of outer mobile thread jacket cylinder and is become 45o angle, the lateral surface of right point shoulder (53) of outer mobile thread jacket cylinder is takeed on lower inclined plane (51) with the right point of outer mobile thread jacket cylinder and is become 45o angle, thus when two semicircular cylinders of outer mobile thread jacket cylinder (8) are closed, the lateral surface that the lateral surface of left point shoulder (48) of outer mobile thread jacket cylinder and the right point of outer mobile thread jacket cylinder take on (53) forms 90o angle, outer mobile thread jacket cylinder (8) two semicircular cylinders can have a circular arc buckle (26) outside opening and closing mouth, the lower end of circular arc buckle (26) is arranged on the outside face of outer mobile thread jacket cylinder (8), and be connected by circular arc buckle rotating shaft (29) with outer mobile thread jacket cylinder (8), circular arc buckle (26) can be rotated around circular arc buckle rotating shaft (29), two points at opening and closing mouth edge can takeing on corresponding position and have sharp groove (54) in a circular arc buckle of medial surface and outer mobile thread jacket cylinder (8) two semicircular cylinders of circular arc buckle (26), in circular arc buckle sharp groove (54) interior angle center line and outer mobile thread jacket cylinder (8) two semicircular cylinders can the closed line of opening and closing mouth overlapping, in circular arc buckle, the interior angle of sharp groove (54) is Ф, 90o < Ф < 92o, there is a circular arc buckle pull bar (32) upper end of circular arc buckle (26), circular arc buckle pull bar (32) stretches out brake outsourcing (9) from the brake outsourcing arc groove (31) of brake outsourcing (9), there is circular arc buckle bracing wire (33) on the top of circular arc buckle pull bar (32), circular arc buckle bracing wire (33) is connected with brake bracing wire (39) by multiple track adjusting wheel, the opposing side of circular arc buckle pull bar (32) and circular arc buckle bracing wire (33) is provided with a return little spring (30), the other end of return little spring (30) is fixedly mounted on the notch of brake outsourcing arc groove (31), when straining parking brake and drive brake bracing wire (39), brake bracing wire (39) drives circular arc buckle bracing wire (33), make circular arc buckle (26) when circular arc buckle rotating shaft (29) rotates, in the circular arc buckle of circular arc buckle (26) inner side, sharp groove (54) just cover and is buckled in the left point of outer mobile thread jacket cylinder and takes on the lateral surface of (48) and the right point of outer mobile thread jacket cylinder is takeed on the lateral surface of (53), and move the left point shoulder lateral surface of (48) of thread jacket cylinder outside and the right point of outer mobile thread jacket cylinder is takeed on the lateral surface of (53) along with groove (54) sharp in circular arc buckle is more withheld, in circular arc buckle, more the lateral surface of left point shoulder (48) of the outer mobile thread jacket cylinder of extruding and the right point of outer mobile thread jacket cylinder take on the lateral surface of (53) to sharp groove (54), and make left point shoulder upper right inclined-plane (50) of outer mobile thread jacket cylinder of left point shoulder (48) of outer mobile thread jacket cylinder take on lower inclined plane (51) the closer to fitting together with the right point of outer mobile thread jacket cylinder that the right point of outer mobile thread jacket cylinder takes on (53), thus two semicircular cylinders of mobile thread jacket cylinder (8) and two semicircular cylinders of outer mobile screw thread inner sleeve (7) no longer unclamp outside pinning, when unclamping after parking brake loosens circular arc buckle bracing wire (33), because return little spring (30) spring-force driven dual makes circular arc buckle pull bar (32) be returned to the position before pulling the hand brake, and the lateral surface making the inside face of sharp groove (54) in the circular arc buckle in circular arc buckle (26) and the left point of outer mobile thread jacket cylinder take on (48) is separated with the lateral surface that the right point of outer mobile thread jacket cylinder takes on (53), thus two semicircular cylinders of two semicircular cylinders of outer mobile thread jacket cylinder (8) and outer mobile screw thread inner sleeve (7) are unclamped naturally, and then remove emergency brake, multiple outer mobile thread jacket cylinder outer left foil shoulder (4) is installed near the outside face left end of outer mobile thread jacket cylinder (8), the medial surface of brake outsourcing (9) has foil groove (10) in multiple brake outsourcing, in multiple brake outsourcings that outer left foil shoulder (4) cover of outer mobile thread jacket cylinder is stuck in brake outsourcing (9) medial surface on foil groove (10), and the phase that matches the outer left foil shoulder (4) of outer mobile thread jacket cylinder and foil groove (10) in brake outsourcing " engages ", make the outer left foil shoulder (4) of outer mobile thread jacket cylinder can and can only in brake outsourcing sway in foil groove (10), namely outer mobile thread jacket cylinder (8) can along foil groove (10) sway in brake outsourcing, the right-hand member of outer mobile thread jacket cylinder (8) is fixedly connected with a throwout sleeve left end ring (12), the cylindrical of throwout sleeve left end ring (12) is connected with the outer foil shoulder (13) of multiple left end ring, outer foil shoulder (13) cover of multiple left end ring to be stuck in multiple brake outsourcing in foil groove (10), the phase that matches the outer foil shoulder (13) of multiple left end ring and foil groove (10) in multiple brake outsourcing " engages ", the right flank of throwout sleeve left end ring (12) fixes a throwout sleeve (14) near the inner ring boundary position of axletree (1), the low order end end face of outer mobile screw thread inner sleeve (7) is installed with a right spring (11), the right-hand member of right spring (11) is fixedly mounted on the left surface of throwout sleeve left end ring (12), the effect of right spring (11) is the negative thread low order end making the outside thread low order end of outer mobile screw thread inner sleeve (7) abut in outer mobile thread jacket cylinder (8) all the time, and after the negative thread that contrarotation on the negative thread that outer mobile screw thread inner sleeve (7) moves thread jacket cylinder (8) outside makes outer mobile screw thread inner sleeve (7) move thread jacket cylinder (8) is outside moved to the left, the outside thread low order end that the negative thread that right spring (11) can make outer mobile screw thread inner sleeve (7) move thread jacket cylinder (8) outside when external force disappears rotating to move right is returned to outer mobile screw thread inner sleeve (7) abuts in the negative thread low order end state of outer mobile thread jacket cylinder (8), throwout sleeve (14) cover is stuck on the outer round surface of bearing external extension sleeve (15), the internal circular surfaces of throwout sleeve (14) has foil groove (34) in throwout sleeve, the outer round surface of bearing external extension sleeve (15) has the outer foil shoulder (35) of bearing external extension sleeve, in throwout sleeve, the outer foil shoulder (35) of foil groove (34) and the bearing external extension sleeve phase that matches " engage ", makes throwout sleeve (14) energy and can only do sway at the outer round surface of bearing external extension sleeve (15), the outer round surface of throwout sleeve (14) is installed with a left set collar of brute spring (16), the right flank of the left set collar of brute spring (16) is installed with a brute spring (17), the right-hand member of brute spring (17) is fixedly mounted on the left surface of the right set collar of brute spring (18), the right set collar of brute spring (18) is fixedly mounted on the outer round surface of bearing external extension sleeve (15), the effect of brute spring (17) is the application force of buffering bearing external extension sleeve (15) and throwout sleeve (14) extruding brute spring (17) or tensile strength spring (17), half section, the right side of bearing external extension sleeve (15) is set on the left gear wheel of revolving wheel (19), revolving wheel (20), between the annular space between the right gear wheel of revolving wheel (21) and long bearing (23), half section, the right side outer round surface of bearing external extension sleeve (15) has outside thread, the internal circular surfaces of revolving wheel (20) has negative thread, the phase that matches outside thread and the negative thread of revolving wheel (20) of bearing external extension sleeve (15) " engages ", rotating forward revolving wheel (20) can make bearing external extension sleeve (15) be moved to the left, contrarotation revolving wheel (20) can make bearing external extension sleeve (15) move right, the left gear wheel of revolving wheel (19) and the right gear wheel of revolving wheel (21) are fixed on the inwall of brake outsourcing (9), the effect of the left gear wheel of revolving wheel (19) and the right gear wheel of revolving wheel (21) limits revolving wheel (20) to rotate around axletree (1) and can not move the direction of axis line of ahead running wheel shaft (1), thus make to draw and rotate runner (20) dynamic bearing external extension sleeve (15) can be with to be moved to the left or to move right, bearing external extension sleeve (15), the left gear wheel of revolving wheel (19), revolving wheel (20), a long bearing (23) is had between the right gear wheel of revolving wheel (21) and axletree (1), the inner ring of long bearing (23) is fixedly mounted on the outside face of axletree (1), the appearance surface cover of long bearing (23) has bearing external extension sleeve (15), the outside face of long bearing (23) has the outer foil shoulder (36) of multiple long bearing, the internal circular surfaces of bearing external extension sleeve (15) has foil groove (37) in multiple bearing external extension sleeve, the phase that matches the outer foil shoulder (36) of long bearing and foil groove (37) in bearing external extension sleeve " engages ", make bearing external extension sleeve (15) can and can only be moved to the left outside long bearing (23) or move right, the left gear wheel of revolving wheel (19), the right gear wheel of revolving wheel (21) is fixedly mounted on the inwall of brake outsourcing (9), brake outsourcing (9) is fixedly mounted on vehicle frame, revolving wheel (20) there is a revolving wheel draw bull stick (38), revolving wheel draws bull stick (38) to stretch out brake outsourcing (9) by the brake outsourcing arc opening (25) of brake outsourcing (9), revolving wheel draws the brake bracing wire (39) on bull stick (38) top to be connected with parking brake bracing wire by multiple track adjusting wheel, the right side of revolving wheel (20) is installed with a revolving wheel pull back spring (22), the right-hand member of revolving wheel pull back spring (22) is fixedly mounted on inside the right flank of brake outsourcing (9), the effect of revolving wheel pull back spring (22) is after revolving wheel draws bull stick (38) to draw to forward to revolving wheel to draw bull stick to draw to turn ultimate attainment position (40) by the brake bracing wire (39) that revolving wheel (20) is driven at parking brake, when not needing re-use emergency brake bag and unclamp parking brake, after losing the pulling force effect of brake bracing wire (39), revolving wheel pull back spring (22) can make revolving wheel (20) reply contrarotation, thus revolving wheel pull back spring (22) makes revolving wheel (20) reply rotate and make bearing external extension sleeve (15) move right, thus drive outer mobile thread jacket cylinder (8) and outer mobile screw thread inner sleeve (7) to move right, the outer attrition surface (43) of outer mobile screw thread inner sleeve internal friction face (44) and interior mobile screw thread bush is finally made to be separated, rub with the outer attrition surface (43) of mobile screw thread inner sleeve internal friction face (44) except solution and interior mobile screw thread bush and brake.
2. can suppress friction self-tightening type emergency brake bag by the two screw thread bush of opening and closing as claimed in claim 1, it is characterized in that: when automobile moves forward in process, when needing to pull emergency brake to pack tightly sudden stop, pull brake bracing wire (39) to the right, driven rotary wheel (20) rotates forward and bearing external extension sleeve (15) is moved to the left, pull brake bracing wire (39) to drive circular arc buckle bracing wire (33) to the right simultaneously, circular arc buckle bracing wire (33) drives circular arc buckle pull bar (32) to pull circular arc buckle (26), make the outer inclined-plane of sharp groove (54) card pressure left point shoulder (48) of outer mobile thread jacket cylinder and right point shoulder (53) of outer mobile thread jacket cylinder in the circular arc buckle of circular arc buckle (26) medial surface, left point shoulder upper right inclined-plane (50) of outer mobile thread jacket cylinder and right point shoulder lower inclined plane (51) of outer mobile thread jacket cylinder are sticked together, thus make two and half of two and half of outer mobile thread jacket cylinder (8) closed and outer mobile screw thread inner sleeves (7) to close, bearing external extension sleeve (15) is moved to the left and compresses brute spring (17) left, brute spring (17) is promoted again the throwout sleeve (14) of brute spring (17) left end and outer mobile thread jacket cylinder (8) and outer mobile screw thread inner sleeve (7) by the spring-return power after compressing and is moved to the left together, thus the outer attrition surface (43) of interior mobile screw thread bush making the outer mobile screw thread inner sleeve internal friction face (44) of outer mobile screw thread inner sleeve (7) abut in interior mobile screw thread bush (6) produces friction, because automobile is in the process of moving forward, the axletree (1) of automobile rotates forward namely to see that axletree (1) is clickwise from right to left, again because the internal fixtion screw thread bush (5) be fixed on axletree (1) can not do sway, can not rotate around axletree (1) with bearing external extension sleeve (15) and outer mobile thread jacket cylinder (8), so move after screw thread inner sleeve internal friction face (44) abuts in that the outer attrition surface (43) of interior mobile screw thread bush is upper and produce friction outside, this is just equivalent to make interior mobile screw thread bush (6) do contrarotation relative to axletree (1) and internal fixtion screw thread bush (5), thus interior mobile screw thread bush (6) is rotated on the outside thread of internal fixtion screw thread bush (5) move right, interior mobile screw thread bush (6) rotates the power that moves right on the outside thread of internal fixtion screw thread bush (5) makes again the outer attrition surface (43) of interior mobile screw thread bush ride over the application force increasing of outer mobile screw thread inner sleeve internal friction face (44) conversely, thus the outer attrition surface (43) of interior mobile screw thread bush is strengthened with the friction of outer mobile screw thread inner sleeve internal friction face (44) two attrition surface, simultaneously, the application force that the outer attrition surface (43) of interior mobile screw thread bush rides over outer mobile screw thread inner sleeve internal friction face (44) also compresses brute spring (17) to the right, because the right set collar of brute spring (18) be connected with brute spring (17) right-hand member is fixedly mounted on bearing external extension sleeve (15), and bearing external extension sleeve (15) is blocked by the negative thread that brake bracing wire (39) hauls motionless revolving wheel (20) and makes bearing external extension sleeve (15) not move right, friction brake weight like this with regard to being made outer mobile screw thread inner sleeve internal friction face (44) abut in the outer attrition surface (43) of interior mobile screw thread bush by the spring-force driven dual of brute spring (17) is cushioned, constantly move right constantly compress brute spring (17) to the right along with interior mobile screw thread bush (6) continues to rotate on the outside thread of internal fixtion screw thread bush (5), the compressive force that brute spring (17) is born is increasing, brute spring (17) is also increasing to the antagonistic force left of outer mobile thread jacket cylinder (8) and outer mobile screw thread inner sleeve internal friction face (44), outer mobile screw thread inner sleeve internal friction face (44) is so just made to abut in the upper friction produced of the outer attrition surface (43) of interior mobile screw thread bush also increasing, and then axletree (1) brake weight produced is also increasing, the friction of this increasing friction impels again interior mobile screw thread bush (6) on the outside thread of internal fixtion screw thread bush (5), produce the power moved right further, the friction of the outer attrition surface (43) of outer mobile screw thread inner sleeve internal friction face (44) and interior mobile screw thread bush is made to become increasing, this increasing friction constantly acts on again axletree (1) and brakes to axletree (1), to the last outer mobile screw thread inner sleeve internal friction face (44) " is engaged " with the friction of the outer attrition surface (43) of interior mobile screw thread bush and axletree (1) is stopped the rotation, complete the emergency brake under automobile forward travel state, when unclamping after parking brake loosens brake bracing wire (39), revolving wheel pull back spring (22) effect makes revolving wheel (20) turn round and is with dynamic bearing external extension sleeve (15) to move right, bearing external extension sleeve (15) moves right tensile strength spring (17), and make throwout sleeve (14) be subject to a pulling force effect to the right by force transmission to the throwout sleeve (14) of brute spring (17) left end, unclamp while parking brake loosens brake bracing wire (39), circular arc buckle bracing wire (33) is loosened in drive, loosening circular arc buckle bracing wire (33) just makes circular arc buckle pull bar (32) and circular arc buckle (26) under return little spring (30) restoring force effect, sharp groove (54) in the circular arc buckle of circular arc buckle (26) is made to take on the outer inclined-plane of (53) away from left point shoulder (48) of the outer mobile thread jacket cylinder blocked and the right point of outer mobile thread jacket cylinder, left point shoulder upper right inclined-plane (50) of outer mobile thread jacket cylinder is separated with right point shoulder lower inclined plane (51) of outer mobile thread jacket cylinder, thus outer mobile screw thread inner sleeve internal friction face (44) is unclamped from attrition surface (43) interior mobile screw thread bush, and then make to be moved right by the outer mobile thread jacket cylinder (8) under brute spring (17) to the right spring-force driven dual and outer mobile screw thread inner sleeve (7), the outer attrition surface (43) of outer mobile screw thread inner sleeve internal friction face (44) and interior mobile screw thread bush is finally made to be separated, remove emergency brake state to complete.
3. can suppress friction self-tightening type emergency brake bag by the two screw thread bush of opening and closing as claimed in claim 1, it is characterized in that: when automobile falls back in driving process backward, when needing to pull emergency brake to pack tightly sudden stop, when needing to pull emergency brake to pack tightly sudden stop, pull brake bracing wire (39) to the right, driven rotary wheel (20) rotates forward and bearing external extension sleeve (15) is moved to the left, pull brake bracing wire (39) to drive circular arc buckle bracing wire (33) to the right simultaneously, circular arc buckle bracing wire (33) drives circular arc buckle pull bar (32) to pull circular arc buckle (26), make the outer inclined-plane of sharp groove (54) card pressure left point shoulder (48) of outer mobile thread jacket cylinder and right point shoulder (53) of outer mobile thread jacket cylinder in the circular arc buckle of circular arc buckle (26) medial surface, left point shoulder upper right inclined-plane (50) of outer mobile thread jacket cylinder and right point shoulder lower inclined plane (51) of outer mobile thread jacket cylinder are sticked together, thus make two and half of two and half of outer mobile thread jacket cylinder (8) closed and outer mobile screw thread inner sleeves (7) to close, bearing external extension sleeve (15) is moved to the left and compresses brute spring (17) left, brute spring (17) is promoted again the throwout sleeve (14) of brute spring (17) left end and outer mobile thread jacket cylinder (8) and outer mobile screw thread inner sleeve (7) by the spring-return power after compressing and is moved to the left together, thus the outer attrition surface (43) of interior mobile screw thread bush making the outer mobile screw thread inner sleeve internal friction face (44) of outer mobile screw thread inner sleeve (7) abut in interior mobile screw thread bush (6) produces friction, because automobile is falling back in driving process backward, the axletree (1) of automobile is that namely contrarotation sees that axletree (1) is left-hand revolution from right to left, again because the internal fixtion screw thread bush (5) be fixed on axletree (1) can not do sway, can not rotate around axletree (1) with bearing external extension sleeve (15) and outer mobile thread jacket cylinder (8), now, mobile screw thread bush (6) has been screwed in the externally threaded high order end of internal fixtion screw thread bush (5), so move after screw thread inner sleeve internal friction face (44) abuts in that the outer attrition surface (43) of interior mobile screw thread bush is upper and produce friction outside, this just makes interior mobile screw thread bush (6) do contrarotation together with axletree (1) and internal fixtion screw thread bush (5), thus abut in the friction on the outer attrition surface (43) of interior mobile screw thread bush by outer mobile screw thread inner sleeve internal friction face (44), on the negative thread driving outer mobile screw thread inner sleeve (7) to move thread jacket cylinder (8) outside, contrarotation makes outer mobile thread jacket cylinder (8) move right, outer mobile thread jacket cylinder (8) moves right and compresses again brute spring (17) to the right conversely, because the right set collar of brute spring (18) be connected with brute spring (17) right-hand member is fixedly mounted on bearing external extension sleeve (15), and bearing external extension sleeve (15) is blocked can not move right by the negative thread that brake bracing wire (39) hauls motionless revolving wheel (20), friction brake weight like this with regard to being made outer mobile screw thread inner sleeve internal friction face (44) abut in the outer attrition surface (43) of interior mobile screw thread bush by the spring-force driven dual of brute spring (17) is cushioned, constantly brute spring (17) is compressed to the right along with outer mobile thread jacket cylinder (8) constantly moves right, the compressive force that brute spring (17) is born is increasing, brute spring (17) is also increasing to the antagonistic force left of outer mobile thread jacket cylinder (8) and outer mobile screw thread inner sleeve internal friction face (44), outer mobile screw thread inner sleeve internal friction face (44) is so just made to abut in the upper friction produced of the outer attrition surface (43) of interior mobile screw thread bush also increasing, and then produce axletree (10 brake weights are also increasing, the power that the friction of this increasing friction impels again outer mobile thread jacket cylinder (8) to move right further, the friction of the outer attrition surface (43) of outer mobile screw thread inner sleeve internal friction face (44) and interior mobile screw thread bush is made to become increasing, this increasing friction constantly acts on again axletree (1) and brakes to axletree (1), to the last outer mobile screw thread inner sleeve internal friction face (44) " is engaged " with the friction of the outer attrition surface (43) of interior mobile screw thread bush and axletree (1) is stopped the rotation, complete the emergency brake under automobile forward travel state, the emergency brake status releasing of car reversed is the same with the emergency brake status releasing process of advance.
CN201510294016.2A 2015-06-02 2015-06-02 Openable double-thread sleeve elastic pressing friction self-tightening emergency brake packet Pending CN104828034A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110293472A (en) * 2019-07-22 2019-10-01 山东梁山耐驰汽车零部件有限公司 A kind of process equipment of drum brakes pad wear line

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Publication number Priority date Publication date Assignee Title
CN87208779U (en) * 1987-06-01 1988-08-10 杨林 Wear-resistant drum brake for bicycle
CN1161669A (en) * 1994-10-24 1997-10-08 萨布沃科公司 Safety brake arrangement in brake actuator
CN2306942Y (en) * 1997-04-29 1999-02-10 上海青浦轴承厂 Back-pedal brake for bicycle
CN2743212Y (en) * 2004-10-28 2005-11-30 张天宇 Bicycle brake device
CN103883640A (en) * 2014-04-16 2014-06-25 魏伯卿 Thread cup joint clutch
CN204623430U (en) * 2015-06-02 2015-09-09 魏伯卿 Friction self-tightening type emergency brake can be suppressed by the two screw thread bush of opening and closing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87208779U (en) * 1987-06-01 1988-08-10 杨林 Wear-resistant drum brake for bicycle
CN1161669A (en) * 1994-10-24 1997-10-08 萨布沃科公司 Safety brake arrangement in brake actuator
CN2306942Y (en) * 1997-04-29 1999-02-10 上海青浦轴承厂 Back-pedal brake for bicycle
CN2743212Y (en) * 2004-10-28 2005-11-30 张天宇 Bicycle brake device
CN103883640A (en) * 2014-04-16 2014-06-25 魏伯卿 Thread cup joint clutch
CN204623430U (en) * 2015-06-02 2015-09-09 魏伯卿 Friction self-tightening type emergency brake can be suppressed by the two screw thread bush of opening and closing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110293472A (en) * 2019-07-22 2019-10-01 山东梁山耐驰汽车零部件有限公司 A kind of process equipment of drum brakes pad wear line

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