CN104265839B - A kind of power takeoff and power takeoff assembly - Google Patents
A kind of power takeoff and power takeoff assembly Download PDFInfo
- Publication number
- CN104265839B CN104265839B CN201410482943.2A CN201410482943A CN104265839B CN 104265839 B CN104265839 B CN 104265839B CN 201410482943 A CN201410482943 A CN 201410482943A CN 104265839 B CN104265839 B CN 104265839B
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- Prior art keywords
- gear
- gearshift
- power takeoff
- shaft
- axle
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2710/00—Control devices for speed-change mechanisms, the speed change control is dependent on function parameters of the gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention discloses a kind of power takeoff and power takeoff assembly, the former includes separating axle, output shaft, conduction axis, shift fork, tooth set, output gear, transfer gear, output shaft is connected with housing into rotation, output gear empty set is on output shaft, tooth set is slidably connected with output shaft, and output gear has the combination tooth suitable with the internal spline of tooth set；Conduction axis is packed in housing, and transfer gear is rotationally connected with conduction axis, and is meshed with output gear；Separate axle to be slidably connected with housing；Shift fork is packed on separation axle, and is connected with tooth set；The latter includes that power takeoff, selector, gearshift flexible axle and rocking arm, rocking arm and rocker arm support pivot joint, the two ends of gearshift flexible axle are connected with linear motion output unit and the rocking arm of selector respectively, and rocking arm connects with separating axle.The present invention uses gearshift flexible shaft manipulation to control corresponding power takeoff, eliminates the structures such as source of the gas, the gas circuit realizing the manipulation control of two-way gas and various cylinders, therefore has simple in construction and the advantage using safety.
Description
Technical field
The present invention relates to power takeoff technical field, particularly relate to a kind of use gearshift flexible shaft manipulation power takeoff power takeoff total
Become.
Background technology
The upper dress part with special function has mainly been reequiped in the difference of special purpose vehicle and general-utility car so that it is can be complete
Become some special transport and operation function.The upper dress part of most special purpose vehicles is all with the electromotor of automobile chassis self
For power source, by power takeoff drive gear hydraulic pump, vacuum pump, plunger displacement pump, light oil hydraulic pump, self-priming hydraulic pump, water pump,
Air compressor etc., thus for dumper, tank service truck, milk barrow, dumper, suction-type sewer scavenger, with car derrick car, high-altitude operation vehicle,
Many special purpose vehicles such as bulk-cement tanker, breast board derrick car support the use.As can be seen here, power takeoff setting at special purpose vehicle
Meter and manufacture view are particularly important.
Power takeoff typically uses automatically controlled gas to handle, and the power takeoff that driver is arranged in opening driver's cabin controls at the bottom of switch connection
During electromagnetic valve on dish, power takeoff can be made to enter duty, now compressed air is by promoting the piston of power takeoff cylinder, makes
Obtain power output；Otherwise, driver can make power takeoff quit work by closing power takeoff control switch.Here, due to special
The usual very severe of operating mode of automobile, easily causes because Vehicular vibration or electromagnetic valve etc. control component failure at power takeoff mistake
In duty, personnel are caused to injure and property loss.At present, the technological means solving this technical problem is to use two-way gas behaviour
Vertical control system controls power takeoff action, and this kind of two-way gas management system includes gas receiver, power takeoff cylinder and variator
The neutral gear position cylinder of scope gear cylinder cascade, electromagnetic valve, air-filtering actuator, power takeoff control switch and neutral position switch,
This power takeoff controls switch and is arranged in driver's cabin, driver control its on off state, when needs power takeoff works, drives
Member needs to make this power takeoff control switch Guan Bi, to enable letter to gearbox controller output for the power takeoff controlling electromagnetic valve
Number, this neutral position switch accesses often electricity through pull-up resistor, through neutral position switch output for control the neutral gear position signal of electromagnetic valve to
Gearbox controller.Gas outlet one branch road of gas receiver connects with the air inlet of air-filtering actuator, and compressed air is through air
Filtering actuator filter and blood pressure lowering after on transmission assembly double H air valves supply, i.e. the gas outlet of air-filtering actuator and
The air inlet connection of double H air valves, another branch road connects through the air inlet of electromagnetic valve with neutral gear position cylinder, to connect at electromagnetic valve
State under by the cylinder piston of neutral gear position cylinder, transmission range kept off the cylinder piston of cylinder and is pushed to make variator
Odd-side is on the position of neutral, and the air inlet of this neutral gear position cylinder connects with the QI KOU of putting into gear of power takeoff cylinder, with at electricity
It is pushed to make power takeoff be in by the cylinder piston of power takeoff cylinder by the compressed air of non-blood pressure lowering under the state that magnet valve is connected
Put into gear the state of power taking；The high gear air vent of above-mentioned pair of H air valve connects with the gear QI KOU of moving back of power takeoff cylinder, thinks power takeoff gas
Cylinder with move back the chamber that connect of gear QI KOU and become the common pressure chamber always generally pressed.The operation principle of this kind of two-way gas management system
For: when gearbox controller receives power takeoff enable signal and neutral gear position signal, connect electromagnetic valve, make neutral gear position gas
The air inlet of cylinder and the QI KOU of putting into gear of power takeoff cylinder are all passed through the compressed air of non-blood pressure lowering, now, the gas of neutral gear position cylinder
Cylinder piston is pushed into and makes secondary box of gearbox be on the position of neutral, and the cylinder piston of power takeoff cylinder is pushed into and makes power taking
Device is in the state of power taking of putting into gear, and speed-changing lever is now linked into the gear needed for low gear district such as driver, and power takeoff is i.e.
Entering duty, tooth set stirred by drive shift fork by the cylinder piston of power takeoff cylinder makes tooth set by input gear with hollow axle even
It is integrated, makes power export.
According to above explanation, the structure of existing two-way gas management system is complex and cost is high, and
And once source of the gas leakage will result directly in power takeoff and cannot normally work.
Summary of the invention
The purpose of the embodiment of the present invention is to solve the drawbacks described above that existing employing two-way gas management system exists,
The power takeoff of the used gearshift flexible shaft manipulation of a kind of simple in construction and simple in construction are provided and use gearshift flexible shaft manipulation power taking
The power takeoff assembly of device.
To achieve these goals, the technical solution used in the present invention is: a kind of power takeoff, including housing, separates axle, defeated
Shaft, conduction axis, shift fork, tooth set, output gear, transfer gear, described output shaft is arranged on described housing rotatably
In, described output gear empty set is on described output shaft, and described tooth set can be slidably mounted on described output shaft relatively, described
The combination tooth that output gear has with described tooth overlaps internal spline is suitable；Described conduction axis is fixedly mounted in described housing,
Described transfer gear is arranged on described conduction axis rotatably, and is meshed with described output gear；Described separation axle
It is connected along the axial sliding fit of described output shaft with described housing；Described shift fork is fixedly mounted on described separation axle, and with
Described tooth set is fixing to be connected.
Preferably, described power takeoff also include stop assembly, described stop assembly include retainer, stopping spring part and
The power taking gear locking groove being both formed on described separation axle and separation gear locking groove, described retainer can be slidably mounted on relatively
In installing hole in described housing, described retainer is locked on described power taking gear locking groove under the effect of described stopping spring part
Or described separation is kept off in locking groove, wherein, it is dynamic that described separation axle moves to make described retainer be locked on described power taking block
The position that the internal spline that position correspondence in groove makes tooth overlap combines with the combination tooth of described output gear, described point of off-axis movement
Tooth set is made to divide mutually with the combination tooth of described output gear to making retainer be locked on the described position correspondence separated in gear locking groove
From position.
Preferably, described retainer is spheroid, and the surface of described power taking gear locking groove and described separation gear locking groove is
The cambered surface suitable with described spheroid.
To achieve these goals, the technical solution used in the present invention is: a kind of power takeoff assembly, including power takeoff with change
Gear operating mechanism, described power takeoff is the power takeoff described in any of the above-described kind；Described shift control mechanism includes gearshift flexible axle, changes
Lug-latch and rocking arm, described rocking arm is pivotally connected with rocker arm support, the straight line fortune of one end of described gearshift flexible axle and described selector
Dynamic output unit is fixing to be connected, and the other end is connected with one end of described rocking arm, and the other end of described rocking arm connects with the described axle that separates.
Preferably, described selector includes shift gears shell, gearshift main shaft, shift handle, power shift gear and as described
Linear motion output unit gearshift tooth bar, described gearshift main shaft is arranged in described gearshift shell rotatably, described in change
Gear gear is fixedly mounted on described gearshift main shaft, described gearshift tooth bar and described gearshift shell sliding connection, described in change
Gear tooth bar is meshed with described power shift gear, and described shift handle is fixing with described gearshift main shaft to be connected.
Preferably, described gearshift main shaft is multidiameter, the first shaft part, the second shaft part and sequentially reduced including diameter
Three shaft parts, described gearshift main shaft is arranged in described gearshift shell rotatably by the first shaft part, described power shift gear
Described gearshift shell is fixedly mounted on described first shaft part；Described second shaft part has external splines, described shift handle
Connect end there is the internal spline suitable with the external splines of described second shaft part, the connection end of described shift handle is set in institute
State on the second shaft part；Described 3rd shaft part has external screw thread, and the connection end of described shift handle is by locking nut and described the
The cooperation of three shaft parts is fixed between described first shaft part and described locking nut.
Preferably, to include that front connector, rear joint and flexible axle body, described rear joint are arranged on described for described gearshift flexible axle
On the gearshift shell of selector, described front connector is arranged on flexible shaft bracket, one end joint after described of described flexible axle body
Protruding and described linear motion output unit is connected, the prelocalization shoulder that described rear joint inner chamber is formed and described flexible axle body
The the first backstage terrace formed is constituted to be stretched after limiting the described flexible axle body outwardly directed stroke of the most described rear joint
Trip degree fixed structure, the second backstage terrace that the prelocalization shoulder that described rear joint inner chamber is formed is formed with described flexible axle body
Constitute the retraction reversion degree fixed structure for limiting the stroke that the most described rear joint of described flexible axle body is inwardly retracted；Described
The other end of flexible axle body is connected through one end of the protruding and described rocking arm of described front connector, and described front connector inner chamber is formed
Rear locating shoulder with described flexible axle body is formed the first foreground terrace constitutes be used for limiting described flexible axle body relative described before
The extension trip degree fixed structure of the outwardly directed stroke of joint, the prelocalization shoulder that described front connector inner chamber is formed is soft with described
The second foreground terrace that axle body is formed is constituted for limiting the stroke that the described the most described front connector of flexible axle body is inwardly retracted
Front retraction stroke limiting structure.
Preferably, described flexible axle body includes being sequentially connected with front rod together, front mandrel, raw silk rings pipe from front to back
Assembly, rear mandrel and back link；Described second foreground terrace, described raw silk rings pipe is formed between described front rod and described front mandrel
Forming described first foreground terrace between assembly and described front mandrel, described front rod is protruding and described through described front connector
One end of rocking arm is pivotally connected；Described second backstage terrace, described raw silk rings pipe is formed between described back link and described rear mandrel
Forming described first backstage terrace between assembly and described rear mandrel, described back link joint after described is protruding and described
Linear motion output unit is fixing to be connected.
Preferably, the outer wall of described rear joint has the neck cervical part of esophagus forming annular slot, and described rear joint passes through neck
Together with section connects and fixes with described gearshift shell with the cooperation of installing hole on described gearshift shell.
Preferably, the outer wall of described front connector has thread segment, and described front connector is arranged on described flexible shaft bracket
Through hole, and by the fastening of the Structural lock that respectively coordinated with described thread segment from a locking nut in the both sides of described flexible shaft bracket
It is scheduled on described flexible shaft bracket.
The invention have the benefit that the power takeoff structure of the present invention can use gearshift flexible axle to drive the side separating axle action
Formula realizes power taking and separates control, and this makes the power takeoff assembly of the present invention can save source of the gas, realize what the manipulation of two-way gas controlled
The structure such as gas circuit and various cylinders, therefore, the power takeoff assembly of the present invention has simple in construction and the advantage using safety.
Accompanying drawing explanation
Fig. 1 shows the structural representation of a kind of embodiment according to power takeoff assembly of the present invention；
Fig. 2 is a kind of sectional view implementing structure of power takeoff shown in Fig. 1；
Fig. 3 is the right view of power takeoff shown in Fig. 2；
Fig. 4 is a kind of partial cutaway front view implementing structure of selector shown in Fig. 1；
Fig. 5 is the top view of selector shown in Fig. 1；
Fig. 6 is a kind of partial cutaway front view implementing structure of gearshift flexible axle shown in Fig. 1；
Fig. 7 shows a kind of attachment structure shown in gearshift flexible axle shown in Fig. 6 and Fig. 4 between selector；
Fig. 8 is a kind of perspective view implementing structure of gearshift main shaft shown in Fig. 4；
Fig. 9 is a kind of cross sectional representation implementing structure of raw silk rings pipe assembly shown in Fig. 6.
Description of reference numerals:
1-selector；10-shifts gears tooth bar；
101-screwed hole；11-shifts gears main shaft；
1101-the first shaft part；1102-the second shaft part；
1103-the 3rd shaft part；12-power shift gear；
13-shifts gears shell；131-installing hole；
121-shift handle；122-handle plastic cap；
15-elastic washer；16-adjusts pad；
17-pad；18-locking nut；
2-power takeoff；21-housing；
22-resilient key；23-transfer gear；
24-adjusts pad；25,213-sealing ring；
26-conduction axis；27-needle bearing；
28,227-bearing；29-bearing insert；
210-bearing cap；214-separates axle；
214a-separates gear locking groove；214b-power taking gear locking groove；
215-blanking cover；216-bolt；
218-asbestos-packing gasket；219-plug screw；
The stopping spring part of 220-；221-retainer；
222-shift fork；225-elastic cylindrical pin；
229-oil sealing；230-connecting plate；
233-tooth set；234-output gear；
3-shifts gears flexible axle；31-locking nut；
32-front rod；Mandrel before 33-；
35-front connector；351-thread segment；
36-raw silk rings pipe assembly；Joint after 37-；
371-neck cervical part of esophagus；Mandrel after 38-；
39-back link；4-flexible shaft bracket；
5-rocking arm；6-rocker arm support；
7,8-locking nut；361-internal lining pipe；
362-raw silk rings pipe；363-crust.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
As it is shown in figure 1, the power takeoff assembly of the present invention includes power takeoff 2 and shift control mechanism, this shift control mechanism
Including gearshift flexible axle 3, selector 1 and Rocker arm 5, Rocker arm 5 is pivotally connected with rocker arm support 6, one end of gearshift flexible axle 3 and selector
The linear motion output unit of 1 is fixing to be connected, and the other end is connected with one end of Rocker arm 5, so that driver is at manual operation selector 1
Time, gearshift flexible axle 3 can be driven to complete stretching motion by the linear motion output unit of selector, and then control Rocker arm 5 around with shake
Pivoting point between arm support 6 swings, and the other end of Rocker arm 5 separates axle and connects with power takeoff 2, and this just can be by Rocker arm 5
Swing be converted to power takeoff 2 separate axle corresponding actions.As shown in Figures 2 and 3, this power takeoff 2 includes housing 21, separates
Axle 214, output shaft 228, conduction axis 26, shift fork 222, tooth set 233, output gear 234, transfer gear 23, this output shaft 228 leads to
Crossing bearing 28 and bearing 227 is arranged in housing 21 rotatably, the outer ring of bearing 28 is connected by fixing with housing 21
Bearing cap 210 position, the inner ring of bearing 28 is connected by bearing insert 29 and output shaft 228 is fixing, and the outer ring of bearing 227 is logical
Cross the connecting plate 230 that be connected fixing with housing 21 to position, between this connecting plate 230 and output shaft 228, oil sealing 229 can be installed, with
Being lubricated output shaft 228, output gear 234 empty set is on output shaft 228, i.e. output gear 234 can output shaft 228 relatively
Rotating, this tooth set 233 can be slidably mounted on output shaft 228 relatively, and this such as can be realized by bonded structure, output gear
Wheel 234 has the combination tooth suitable with the internal spline of tooth set 233；Conduction axis 26 is fixedly mounted in housing 21, and this such as may be used
Realized by the resilient key 22 through conduction axis 26 and housing 21, it addition, in order to prevent the impurity such as dust from entering in power takeoff, can
Installing sealing ring 25 between conduction axis 26 and housing 21, this transfer gear 23 is arranged on conduction axis 26 rotatably,
And be meshed with output gear 234, here, for the conduction efficiency improving transfer gear 23, it can pass through needle bearing 27 can
It is arranged in relative rotation on conduction axis 26, in power takeoff 2 is arranged on power takeoff mounting interface reserved on the left of change speed gear box
After, this transfer gear 23 will engage with the master gear of change speed gear box, to drive transfer gear 23 by the master gear of change speed gear box, enters
And drive output gear 234 to rotate；This separation axle 214 is connected along the axial sliding fit of output shaft 228 with housing 21, is equally
In order to avoid the impurity such as dust enters in power takeoff 2, separating, sealing ring 213 can be installed between axle 214 and housing 21, also can be
The outer setting of housing 21 is set in the blanking cover 215 separated on axle 214, and this blanking cover 215 can be fixed on housing 21 by bolt 216,
To protect sealing ring 213；Shift fork 222 such as can by elastic cylindrical pin 225 be fixedly mounted on separation axle 214 on, and with tooth set
233 fixing connections, so, are separating the positions that axle 214 moves to make tooth set 233 be meshed with the combination tooth of output gear 234
Time, if variator is linked into corresponding gear, output shaft 228 can be driven to rotate, it is achieved power taking of putting into gear, and separate axle 214
When moving to the position making tooth set 233 separated with the combination tooth of output gear 234, no matter what gear variator hangs on, defeated
Shaft 228 all exports without torque, it is achieved separate, so that driver can realize the extension of power takeoff 2 by shift control mechanism
Keep off power taking and separate control.
The power takeoff assembly of the present invention, owing to using gearshift flexible axle 3 to carry out handling control, therefore eliminates source of the gas, realization pair
Handle the structures such as the gas circuit controlled and various cylinders to gas, this makes the power takeoff assembly of the present invention have simple in construction and use
The advantage of safety.
In order to ensure the transmission efficiency of power, can multiple flexible shaft bracket be set between selector 1 and power takeoff 2, shifts gears soft
Axle 3 sequentially passes through each flexible shaft bracket, retrains reliably with the motion path to gearshift flexible axle.
Determined by the gear residing for selector 1, therefore, under normal conditions, as long as will change owing to separating the position of axle 214
Lug-latch 1 is fixed on required gear, can ensure that separating axle 214 is securely positioned on the position of correspondence, but in order to avoid dividing
Off-axis 214 affect, because the uncontrollable reasons such as Vehicular vibration produce, the displacement that power takeoff 2 normally uses, as in figure 2 it is shown, the present invention
Power takeoff also includes stop assembly, and this stop assembly includes the stopping spring part 220 of retainer 221, e.g. spring and equal shape
Becoming the power taking gear locking groove 214b separated on axle 214 and separate gear locking groove 214a, this retainer 221 can be pacified the most slidably
Be contained in the installing hole in housing, retainer 221 be locked under the effect of stopping spring part 220 power taking gear locking groove 214b or
Person separates in gear locking groove 214a, and the most stopping spring part 220 is compressed between installing hole and retainer 221, wherein, separates axle
214 position (the i.e. power taking position) correspondences moving to make retainer 221 be locked in power taking gear locking groove 214b make tooth set 233
The position that internal spline combines with the combination tooth of output gear 234, separates axle 214 and moves to make retainer 221 be locked on separation
Position (i.e. separation point position) correspondence in gear locking groove 214a makes the position that tooth set 233 is separated with the combination tooth of output gear 234
Put.So, only apply enough power by selector 1 and separation axle 214 just can be made to produce bigger movement tendency, and then will only
Moving part 221 is released from the locking groove being currently located and is made retainer 221 be supported on the surface separating axle 214, and makes separation
Axle 214 moves to another gear, and now, retainer 221 can fall in the locking groove corresponding with another gear again, to separation
Axle 214 positions.
For the ease of carrying out the installation of stop assembly, this installing hole can be through hole, so, by retainer 221 and stop
After elastic component 220 is arranged in installing hole, by plug screw 219, retainer 221 and stopping spring part 220 can be encapsulated in installing hole
In.
In order to retainer 221 be released from current locking groove smoothly, without occurring by shift control mechanism
Separating axle 214 stuck phenomenon, this retainer 221 can use spheroid, and this power taking gear locking groove 214b and separation keep off locking groove
The surface of 214a forms guiding surface, and this guiding surface can be such as the cambered surface suitable with spheroid, V-groove face etc..It addition, will
Locking groove is designed as the structure with guiding surface, is all beneficial to avoid the occurrence of for the retainer 221 of any shape
Separate axle 214 stuck phenomenon.
For the ease of carrying out the connection between power takeoff 2 and power transmission shaft (not shown), as it is shown on figure 3, this output shaft
The outfan of 228 can have the internal spline for connecting power transmission shaft.It addition, power transmission shaft is also by adpting flange and output shaft
228 are fixed together.
The selector 1 of the present invention can use the structure being similar to shift of transmission device, as long as it is soft to realize controlling gearshift
Axle 3 structure of motion between two positions (the corresponding power taking position separating axle 214 and separation point position) all can be applied at this
In the selector 1 of invention, Fig. 4 and Fig. 5 shows a kind of alternative selector structure, and it includes shift gears shell 13, gearshift
Main shaft 11, shift handle 121, power shift gear 12 and the gearshift tooth bar 10 as linear motion output unit, gearshift main shaft 11 can phase
To being rotatably mounted in gearshift shell 13, power shift gear 12 is fixedly mounted on gearshift main shaft 11 in gearshift shell 13, changes
Gear tooth bar 10 and gearshift shell 13 sliding connection, gearshift tooth bar 10 is meshed with power shift gear 12, and shift handle 121 passes through
Fix with gearshift main shaft 11 in the outside of gearshift shell 13 and be connected.So, promote driver or pull shift handle 121
Time, gearshift tooth bar 10 can be driven to move along a straight line by power shift gear 12, and then drive gearshift flexible axle 3 between the two positions
Switching.The power taking gear corresponding with power taking position that is that separate axle 214 that be that determine shift handle 121 for the ease of driver and with
Separate the separation gear that the separation point position of axle 214 is corresponding, can be at the chute being slidably matched with gearshift tooth bar 10 of gearshift shell
Or the two ends of slide rail arrange stop part, the position of two stop parts respectively with the power taking gear of shift handle 121 and separate gear
Position is corresponding, so, when driver promotes or pulls shift handle 121 action, if shift handle 121 is because of gearshift tooth bar
10 positions having moved to corresponding end stop part and cannot continue to move along current shifting direction, then explanation shift handle 121
Arrive corresponding gear positions.It addition, also power taking and two gears of separation can be demarcated on gearshift shell 13, change to determine
Two gear positions of block handle 121.It addition, in order to ensure shifting comfort, hands can be arranged at the handheld terminal of shift handle 121
Handle plastic cap 122.
For the ease of carrying out the installation of shift handle 121 and fixing, gearshift main shaft 11 can be designed as rank as shown in Figure 8
Ladder axle, it includes that the first shaft part the 1101, second shaft part 1102 and the 3rd shaft part 1103 that diameter sequentially reduces, gearshift main shaft 11 lead to
Crossing the first shaft part 1101 to be arranged on rotatably in gearshift shell 13, power shift gear 12 fixedly mounts in gearshift shell 13
On the first shaft part 1101；Second shaft part 1102 has external splines, and the connection end of shift handle 121 has and the second shaft part 1102
The suitable internal spline of external splines, the connection end of shift handle 121 is set on the second shaft part 1102, to be connected by spline
Limit shift handle 121 to rotate relative to gearshift main shaft 11；3rd shaft part 1103 has external screw thread, the connection end of shift handle 121
It is fixed on first shaft part 1101 (the specially first shaft part 1101 and second with coordinating of the 3rd shaft part 1103 by locking nut 18
Step surface between shaft part 1102) and locking nut 18 between, and then limit shift handle 121 relatively shift gears main shaft 11 along gearshift
Moving axially of main shaft 11.Here, in order to prevent locking nut 18 slide fastener, can be in the company of locking nut 18 with shift handle 121
Connect and pad 17 is set between end, and elastic washer 15 is set between the connection end and gearshift shell 13 of shift handle 121 and adjusts
Whole pad 16.
For the ease of assembling this selector 1, can be designed as including front gearshift shell and rear gearshift shell by gearshift shell 13
Structure, front gearshift shell and rear gearshift shell are snapped together, and are fastened by screw.
Above-mentioned gearshift flexible axle (or claiming gearshift wire drawing) can use the Chinese invention patent of Publication No. CN 203717882U
Shifting flexible axle structure disclosed in document, the present invention provides a kind of being easy to connect and the gearshift flexible axle structure of location at this, as
Shown in Fig. 6, this gearshift flexible axle 3 includes that front connector 35, rear joint 37 and flexible axle body, rear joint 37 are arranged on changing of selector 1
On gear shell 13, front connector is arranged on flexible shaft bracket 4 as shown in Figure 1, here, lead for arranging multiple flexible shaft bracket
To the structure of constraint, this flexible shaft bracket 4 span from the nearest flexible shaft bracket of power takeoff 2, one end of this flexible axle body through after joint
37 protruding and e.g. gearshift tooth bar 10 linear motion output units are connected, shape between rear joint 37 inner chamber and flexible axle body
Become for limit flexible axle body relatively after stretch out stroke limiting structure after the outwardly directed stroke of joint 37, and be used for limiting soft
The retraction reversion degree fixed structure of the stroke that the relatively rear joint 37 of axle body is inwardly retracted；The other end of flexible axle body is through front connector
35 protruding one end with Rocker arm 5 are connected, and formed and be used for limiting flexible axle body phase between front connector 35 inner chamber and flexible axle body
The extension trip degree fixed structure of stroke outwardly directed to front connector 35, and be used for limiting flexible axle body relative to front connector 35 to
The front retraction stroke limiting structure of the stroke of interior retraction.Above-mentioned stroke limit structure can be formed from corresponding inner chamber with flexible axle originally
Suitable locating shoulder and step surface between body are constituted.
Such as, as shown in Figure 6, this flexible axle body can include being sequentially connected with front rod 32 together, front core from front to back
Axle 33, raw silk rings pipe assembly 36, rear mandrel 38 and back link 39；The the second foreground terrace formed between front rod 32 and front mandrel 33
The prelocalization shoulder formed with front connector 35 inner chamber constitutes above-mentioned front retraction stroke limiting structure, raw silk rings pipe assembly 36 and front mandrel
The rear locating shoulder that the first foreground terrace formed between 33 and front connector 35 inner chamber are formed constitutes the above-mentioned stroke limiting that protracts
Structure, this front rod 32 is pivotally connected through the protruding one end with Rocker arm 5 of front connector 35；Between back link 39 and rear mandrel 38
The rear locating shoulder that the second backstage terrace formed and rear joint 37 inner chamber are formed constitutes above-mentioned retraction reversion degree fixed structure, directly
The prelocalization shoulder that the first backstage terrace formed between fiber tube assembly 36 and rear mandrel 33 and rear joint 37 inner chamber are formed is constituted
Stretch out stroke limiting structure after above-mentioned, back link 39 through after joint 37 is protruding fixing with linear motion output unit is connected.?
This, this back link 39 can be screw rod, as it is shown in fig. 7, it can carry out spiral shell with the screwed hole 101 that tooth bar 10 of e.g. shifting gears is arranged
Stricture of vagina is connected, and is locked by locking nut 31；This front rod 32 is alternatively screw rod, and it can be threaded connection
Structure is fixed on a connecting ball head, and is locked by another locking nut 31, and this front rod 32 can be by connecting
Bulb is pivotally connected with one end of Rocker arm 5.
As shown in Fig. 4, Fig. 6 and Fig. 7, the outer wall of this rear joint 37 has the neck cervical part of esophagus 371 forming annular slot, rear joint
27 by neck cervical part of esophagus 371 and the cooperation of installing hole 131 on gearshift shell 13 with shift gears together with shell 13 connects and fixes.This kind solid
It is highly convenient for installing during the fixed structure structure that gearshift shell and rear gearshift shell snap together before shell 13 of shifting gears uses, tool
Body is: installing hole 131 is formed from two the semi-circular hole position splicings fastening edge of front gearshift shell and rear gearshift shell
Form, in the semi-circular hole position of shell of so can shifting gears after first neck cervical part of esophagus 371 being connected to, more front gearshift shell is fastened on
On rear gearshift shell.
For the ease of installing front connector 35, as shown in Figure 6, the outer wall of this front connector 35 has thread segment 351, front connector 35
The through hole arranged on flexible shaft bracket 4, and pass through in the both sides of flexible shaft bracket 4 respectively by a locking nut 7,8 and thread segment
351 Structural lock coordinated fasten on flexible shaft bracket 4.
In order to ensure that above-mentioned raw silk rings pipe assembly 36 has the rigidity of requirement, as it is shown in figure 9, this raw silk rings pipe assembly 36 can include
The e.g. internal lining pipe 361 of plastic material, the circle raw silk rings pipe 362 arranged around internal lining pipe 361, and it is coated on a circle raw silk rings pipe
The crust 363 of the e.g. nylon material outside 362, a circle raw silk rings pipe 362 forms cincture along the axial spread configuration of internal lining pipe 361
The raw silk rings tube bank of internal lining pipe 361, raw silk rings is restrained lock ring on the surface of internal lining pipe 361 by crust 363.Particularly this raw silk rings tube bank
In each raw silk rings pipe 362 close-packed arrays, i.e. gapless between adjacent straight fiber tube 362.
In order to ensure that above-mentioned front mandrel 33 and rear mandrel 38 have the rigidity of requirement, this mandrel can include spring steel wire, ring
The circle zinc-coated wire arranged around spring steel wire, and it is coated on the crust outside a circle zinc-coated wire of layout, a circle zinc-coated wire
Axial spread configuration along spring steel wire is formed around the steel tendon of spring steel wire, crust by steel tendon lock ring at spring steel wire
On surface.
The structure of the present invention, feature and action effect, above institute are described in detail above according to graphic shown embodiment
State only presently preferred embodiments of the present invention, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing
Want made change, or be revised as the Equivalent embodiments of equivalent variations, still without departing from description and diagram contained spiritual time,
All should be within the scope of the present invention.
Claims (9)
1. a power takeoff, it is characterised in that include housing, separate axle, output shaft, conduction axis, shift fork, tooth set, output gear,
Transfer gear, described output shaft is arranged in described housing rotatably, and described output gear empty set is at described output shaft
On, described tooth set can be slidably mounted on described output shaft relatively, and described output gear has the internal spline overlapped with described tooth
Suitable combination tooth；Described conduction axis is fixedly mounted in described housing, and described transfer gear is arranged on rotatably
On described conduction axis, and it is meshed with described output gear；Described separation axle is slided along the axial of described output shaft with described housing
Move and be connected；Described shift fork is fixedly mounted on described separation axle, and overlaps fixing connection with described tooth；
Described power takeoff also includes that stop assembly, described stop assembly include retainer, stopping spring part and be both formed in described
Separating the power taking gear locking groove on axle and separate gear locking groove, described retainer can be slidably mounted in described housing relatively
In installing hole, described retainer is locked on described power taking gear locking groove or described separation under the effect of described stopping spring part
In gear locking groove, wherein, described separation axle moves to the position pair making described retainer be locked in described power taking gear locking groove
The position that the internal spline that tooth should be made to overlap combines with the combination tooth of described output gear, described separation axle moves to make retainer card
Only tooth is made to overlap the position that the combination tooth with described output gear is separated in the described position correspondence separated in gear locking groove.
Power takeoff the most according to claim 1, it is characterised in that described retainer is spheroid, described power taking gear locking groove
It is the cambered surface suitable with described spheroid with the described surface separating gear locking groove.
3. a power takeoff assembly, including power takeoff and shift control mechanism, it is characterised in that described power takeoff is claim
Power takeoff according to any one of 1 to 2；Described shift control mechanism includes shift gears flexible axle, selector and rocking arm, described rocking arm with
Rocker arm support is pivotally connected, and one end of described gearshift flexible axle is fixing with the linear motion output unit of described selector to be connected, another
End is connected with one end of described rocking arm, and the other end of described rocking arm connects with the described axle that separates.
Power takeoff assembly the most according to claim 3, it is characterised in that described selector includes shift gears shell, gearshift master
Axle, shift handle, power shift gear and the gearshift tooth bar as described linear motion output unit, described gearshift main shaft can relatively rotate
Be arranged in described gearshift shell, described power shift gear is fixedly mounted on described gearshift main shaft, described gearshift tooth bar and institute
Stating gearshift shell sliding connection, described gearshift tooth bar is meshed with described power shift gear, and described shift handle changes with described
Gear main shaft is fixing to be connected.
Power takeoff assembly the most according to claim 3, it is characterised in that described gearshift main shaft is multidiameter, including diameter
The first shaft part, the second shaft part and the 3rd shaft part sequentially reduced, described gearshift main shaft is pacified rotatably by the first shaft part
Being contained in described gearshift shell, described power shift gear is fixedly mounted on described first shaft part in described gearshift shell；Described
Second shaft part has external splines, and the end that connects of described shift handle has the interior flower suitable with the external splines of described second shaft part
Key, the connection end of described shift handle is set on described second shaft part；Described 3rd shaft part has external screw thread, described gearshift hands
Handle connect end by locking nut and described 3rd shaft part coordinate be fixed on described first shaft part and described locking nut it
Between.
Power takeoff assembly the most according to claim 3, it is characterised in that described gearshift flexible axle includes front connector, rear joint
With flexible axle body, described rear joint is arranged on the gearshift shell of described selector, and described front connector is arranged on flexible shaft bracket,
Protruding and the described linear motion output unit of one end joint after described of described flexible axle body is connected, described rear joint inner chamber
It is relative that the prelocalization shoulder formed is used for limiting described flexible axle body with the first backstage terrace composition that described flexible axle body is formed
Stretch out stroke limiting structure after the described outwardly directed stroke of rear joint, the prelocalization shoulder that described rear joint inner chamber is formed with
The second backstage terrace composition that described flexible axle body is formed is used for limiting the most described rear joint of described flexible axle body and inwardly retracts
The retraction reversion degree fixed structure of stroke；The other end of described flexible axle body is protruding and described rocking arm through described front connector
One end connect, the first foreground terrace that rear locating shoulder and the described flexible axle body that described front connector inner chamber is formed is formed is constituted
For limit the described flexible axle body outwardly directed stroke of the most described front connector extension go on a journey degree fixed structure, described before connect
The second foreground terrace that prelocalization shoulder and the described flexible axle body that head inner chamber is formed is formed constitute be used for limiting described flexible axle this
The front retraction stroke limiting structure of the stroke that the most described front connector of body is inwardly retracted.
Power takeoff assembly the most according to claim 6, it is characterised in that described flexible axle body includes the most sequentially connecting
The front rod being connected together, front mandrel, raw silk rings pipe assembly, rear mandrel and back link；Between described front rod and described front mandrel
Form described second foreground terrace, between described raw silk rings pipe assembly and described front mandrel, form described first foreground terrace, described
Front rod is pivotally connected through one end of the protruding and described rocking arm of described front connector；Between described back link and described rear mandrel
Form described second backstage terrace, between described raw silk rings pipe assembly and described rear mandrel, form described first backstage terrace, described
Protruding and the described linear motion output unit of back link joint after described is fixing to be connected.
Power takeoff assembly the most according to claim 6, it is characterised in that the outer wall of described rear joint has formation annular snap
The neck cervical part of esophagus of groove, described rear joint by neck cervical part of esophagus with on described gearshift shell installing hole coordinate and described gearshift shell clamping
It is fixed together.
Power takeoff assembly the most according to claim 6, it is characterised in that the outer wall of described front connector has thread segment, institute
State front connector and pass the through hole arranged on described flexible shaft bracket, and pass through in the both sides of described flexible shaft bracket respectively by a locking screw
The Structural lock that female and described thread segment coordinates fastens on described flexible shaft bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482943.2A CN104265839B (en) | 2014-09-19 | 2014-09-19 | A kind of power takeoff and power takeoff assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482943.2A CN104265839B (en) | 2014-09-19 | 2014-09-19 | A kind of power takeoff and power takeoff assembly |
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| CN104265839A CN104265839A (en) | 2015-01-07 |
| CN104265839B true CN104265839B (en) | 2016-08-24 |
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| CN201410482943.2A Active CN104265839B (en) | 2014-09-19 | 2014-09-19 | A kind of power takeoff and power takeoff assembly |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286810A (en) * | 2015-06-01 | 2017-01-04 | 泰州市安捷利汽车配件有限公司 | A kind of gearshift of electric automobile three class gear box |
| CN105546054B (en) * | 2015-12-16 | 2017-12-15 | 湖北航天技术研究院特种车辆技术中心 | A kind of power takeoff device |
| CN107989994A (en) * | 2017-12-08 | 2018-05-04 | 中国重汽集团济南动力有限公司 | A kind of power takeoff air-control device |
| CN110645346A (en) * | 2019-09-26 | 2020-01-03 | 陕西法士特汽车传动集团有限责任公司 | Mechanical side power takeoff |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2766144B2 (en) * | 1992-10-26 | 1998-06-18 | 株式会社クボタ | PTO clutch of work machine |
| JP3585570B2 (en) * | 1995-05-30 | 2004-11-04 | ニューデルタ工業株式会社 | Reverse gear check device for control machine |
| KR100659550B1 (en) * | 2005-08-24 | 2006-12-19 | 다이모스(주) | Power takeoff device for a vehicle |
| CN2859086Y (en) * | 2005-12-21 | 2007-01-17 | 顾林华 | Power takeoff |
| CN201078439Y (en) * | 2007-08-27 | 2008-06-25 | 王巧扣 | Force adopting equipment with adjustable speed ratio |
| CN201833879U (en) * | 2010-10-28 | 2011-05-18 | 重庆伊采孚传动设备有限公司 | Vehicle power takeoff device |
| CN102312973B (en) * | 2011-10-08 | 2013-04-24 | 徐州凯尔机械有限公司 | Gear box of tractor |
| CN102322517B (en) * | 2011-10-08 | 2014-09-10 | 徐州凯尔农业装备股份有限公司 | Shift drive device provided with slow-down output PTO (Power Take-off) for gear box of tractor |
| CN202971861U (en) * | 2012-11-30 | 2013-06-05 | 綦江齿轮传动有限公司 | Post-positioned power take-off (PTO) with built-in cylinder |
| CN203637580U (en) * | 2013-12-30 | 2014-06-11 | 中国重汽集团济南动力有限公司 | Novel left arranged power takeoff of heavy-duty truck |
| CN204083071U (en) * | 2014-09-19 | 2015-01-07 | 安徽江淮汽车股份有限公司 | A kind of power take-off and power take-off assembly |
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2014
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| CN104265839A (en) | 2015-01-07 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |