CN106043258A - Breaker pump and applications thereof on loaders - Google Patents

Breaker pump and applications thereof on loaders Download PDF

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Publication number
CN106043258A
CN106043258A CN201610597395.7A CN201610597395A CN106043258A CN 106043258 A CN106043258 A CN 106043258A CN 201610597395 A CN201610597395 A CN 201610597395A CN 106043258 A CN106043258 A CN 106043258A
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CN
China
Prior art keywords
brake
chamber
piston
valve
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610597395.7A
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Chinese (zh)
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CN106043258B (en
Inventor
聂瑞波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Laizhou Huwei Machinery Technology Co ltd
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Individual
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Priority to CN201610597395.7A priority Critical patent/CN106043258B/en
Publication of CN106043258A publication Critical patent/CN106043258A/en
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Publication of CN106043258B publication Critical patent/CN106043258B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T17/00Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02Arrangements of pumps or compressors, or control devices therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/14Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00Type of actuator operation force
    • F16D2121/02Fluid pressure
    • F16D2121/04Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
    • F16D2121/06Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure for releasing a normally applied brake
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00Type of actuator operation force
    • F16D2121/02Fluid pressure
    • F16D2121/08Fluid pressure acting on a membrane-type actuator, e.g. for gas pressure
    • F16D2121/10Fluid pressure acting on a membrane-type actuator, e.g. for gas pressure for releasing a normally applied brake

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Systems And Boosters (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The invention discloses a breaker pump and applications thereof on loaders. The breaker pump comprises a brake chamber, a driving vehicle brake chamber and a stopped vehicle brake chamber; the driving vehicle brake chamber is provided with a first rubber skin cup; the driving vehicle brake chamber is divided into a driving vehicle brake left chamber and a driving vehicle brake chamber air receiver by the first rubber skin cup; the stopped vehicle brake chamber is provided with a first piston; the stopped vehicle brake chamber is divided into a stopped vehicle brake air receiver and a stopped vehicle brake right chamber by the first piston; a first push rod is installed at the left side of the first piston; a main spring is installed at the right side of the first piston; the brake chamber is provided with a liquid outlet channel; the brake chamber is provided with a second piston; a first reset spring is installed at the left side of the second piston; a second push rod is installed at the left side of the first rubber skin cup; the second push rod is sleeved by an auxiliary spring; the brake chamber is provided with a liquid outlet chamber; the liquid outlet chamber is communicated with the brake chamber; a liquid storage tank is installed above the liquid outlet chamber; the liquid outlet chamber is provided with a first control valve; the connection or disconnection of the inner chamber and the liquid outlet chamber of the liquid storage tank are controlled by the first control valve. The breaker pump has the advantages of good braking effect, safe use and high reliability.

Description

Brake pump and the application on loader thereof
Technical field
The present invention relates to brake pump and the application on loader thereof, belong to loader brake pump technical field.
Background technology
Existing loader parking brake uses centre disk type vehicle stopping braking, and brake disc is fixed on power transmission shaft, mechanical operation, should Brake gear could can only use after loader comes to a complete stop, if loader uses under steam, easily causes power transmission shaft and car Bridge damages;If loader quality is excessive or in acclive local parking, easily occurs that parking is malfunctioning, easily has an accident. It addition, once handbrake mechanism or transmission shaft failure, brake will be malfunctioning;When driving, if air pump, pipeline, gas receiver, braking Any component failure such as valve, brake will be malfunctioning, easily has an accident.
For drawbacks described above, brake air chamber of pump and brake chamber are improved by the applicant.In order to reduce cost, change One brake chamber of brake pump after entering is provided with two set pistons of series connection, and brake chamber forms two liquid outlet channels, each go out liquid Passage controls two braking clamps, though this brake pump compact conformation, once brake chamber shell is damaged, causes the braking of full car to lose Spirit.Then, applicant improves again, uses an air chamber to control two set pistons in two brake chambers of parallel connection simultaneously, though So the safety coefficient of brake pump increases, but owing in actual use, the brake-fluid pressure in two brake chambers is inconsistent, causes In air chamber, there is unbalance stress phenomenon in rubber cup, often breaks down, and reliability is poor.
It addition, two kinds of brake pumps after above-mentioned improvement, being provided with check valve between fluid reservoir and brake chamber, brake-fluid can only Flowing to brake chamber from fluid reservoir, along with increasing of access times, necessarily make the brake-fluid in brake chamber get more and more, brake is stepped on Plate displacement is shorter and shorter, if desired, needs the artificial brake-fluid adjusted in brake chamber, makes troubles to use.Store up simultaneously Flow container uses fixing connection with brake chamber, makes troubles repair demolition.
Summary of the invention
The technical problem to be solved in the present invention: provide braking effect good, use safety, brake pump that reliability is high and Application on loader.
The technical solution of the present invention is: brake pump, and including brake pump housing, brake pump housing is provided with brake chamber, OK Car brake chamber and stopping brake chamber, service brake cavity is positioned at the left side in stopping brake chamber, and brake chamber is positioned at a left side for service brake cavity Side;Described service brake cavity is provided with the 1st rubber cup, the 1st rubber cup service brake cavity is divided into service brake left chamber and Service brake air storage chamber, service brake air storage chamber is positioned at the right side of service brake left chamber, and service brake air storage chamber is provided with driving Braking QI KOU;Stopping brake chamber is provided with the 1st piston, and the 1st piston can move left and right in stopping brake chamber, and the 1st piston will stop Brake chamber is divided into stopping brake air storage chamber and the right chamber of stopping brake, and stopping brake air storage chamber is positioned at a left side for the right chamber of stopping brake Side, stopping brake air storage chamber is provided with stopping brake QI KOU, is provided with the 1st push rod on the left of the 1st piston, and the right side of the 1st piston is provided with master Spring, described brake chamber be provided with liquid outlet channel, brake chamber is provided with the 2nd piston, and the left side of the 2nd piston is provided with the 1st back-moving spring, Being provided with the 2nd push rod on the left of 1st rubber cup, the 2nd push rod is cased with auxiliary spring, and the 2nd push rod can promote the 2nd piston to be moved to the left; Brake chamber be arranged over out sap cavity, go out sap cavity and communicate with brake chamber, go out sap cavity and be arranged over fluid reservoir, go out sap cavity and be provided with the 1st Control valve, the 1st control valve controls the inner chamber of fluid reservoir and communicates with going out sap cavity or close.
As improvement, going out to be provided with between sap cavity and brake chamber liquid passage and fore-set guide through hole, the 1st control valve includes 1 valve body, the 1st valve body is arranged over guide post, and guide post is cased with sealing gasket, is provided with the 1st control valve spring below the 1st valve body, top Post guide through hole withstands on the outside of the 1st valve body lower surface equipped with fore-set, the top of fore-set;The centre of the 2nd piston is provided with cannelure, Cannelure forms the 1st cylinder, and the left end of cannelure forms the 2nd cylinder, and the right-hand member of cannelure forms the 3rd cylinder, the 1st circle Connected by round platform transition between cylinder and the 2nd cylinder;When the 2nd piston moves from left to right, the bottom of fore-set is successively from the 1st Cylindrical surface, the surface of round platform, slide into the 2nd cylindrical surface, and fore-set ascends along fore-set guide through hole Mobile, thus the 1st valve body is knocked over by fore-set, makes the 1st valve body inclined, the inner chamber of fluid reservoir is by going out sap cavity and brake chamber Communicate;When the 2nd piston moves from right to left, fore-set bottom from the 2nd cylindrical surface, the surface of round platform, slides into the 1st successively Cylindrical surface, fore-set descends movement along fore-set guide through hole, thus the 1st valve body returns to normally block shape State, makes the inner chamber of fluid reservoir no longer communicate with going out sap cavity.
As improvement, going out sap cavity and be provided with female thread, the lower section of fluid reservoir is fluid reservoir base plate, and fluid reservoir base plate is provided with the 1st Through hole, is provided with the 1st bolt in the lower section of the 1st through hole, is arranged above the 2nd bolt at the 1st through hole, and the 1st bolt includes the 1st Bolt head and the 1st screw rod, the 1st screw rod is provided with external screw thread, and the center of the 1st bolt is provided with through tapped through hole, and the 1st bolt leads to Crossing the 1st screw rod to be screwed in out on sap cavity, the 1st bolt head is positioned at the top of sap cavity, and fluid reservoir base plate is positioned at the 1st bolt head Top;2nd bolt includes the 2nd bolt head and the 2nd screw rod, and the 2nd screw rod is provided with external screw thread, and the center of the 2nd bolt is provided with through The 2nd through hole, the 2nd screw rod is screwed on the tapped through hole of the 1st bolt through the 1st through hole, and the 2nd bolt head is positioned at fluid reservoir base plate Top, fluid reservoir base plate is fixed by the 1st bolt head and the 2nd bolt head.
The left end of above-mentioned 1st back-moving spring is provided with chassis, and the left end on chassis contacts with the inwall of brake chamber, liquid outlet channel Being provided with the 2nd control valve, described 2nd control valve includes the 2nd rubber cup, the 2nd rubber cup base and the 2nd control valve spring, the 2nd Rubber cup is positioned at the left side of the 2nd rubber cup base, and the right-hand member of the 2nd rubber cup base is provided with the 2nd control valve spring, the 2 control valve springs and chassis Elastic Contact;Chassis is provided with liquid-through hole;2nd rubber cup base be circumferentially with the 2nd through hole, the 2nd The center of rubber cup is provided with the 3rd through hole, and the 2nd through hole and the 3rd through hole mutually stagger.
The right-hand member of above-mentioned brake pump housing is provided with screwed hole, and screwed hole is provided with the adjustment screw of adaptation, adjusts screw permissible Limit the position that the 1st piston moves right.
The left side of above-mentioned 2nd piston is provided with the 1st blind hole, and the right side of the 2nd piston is provided with the 2nd blind hole, and the 1st cylinder sets There is liquid passage, crossed liquid passage and the connection of the 1st blind hole;The right-hand member of the 1st back-moving spring is positioned at the 1st blind hole of the 2nd piston, and the 2nd The left end of push rod is positioned at the 2nd blind hole of the 2nd piston, and the 3rd cylindrical periphery is provided with the sealing cannelure in more than 1 road, close Envelope cannelure is built with piston packing.
Above-mentioned brake chamber is provided with brake switch;Service brake left chamber is provided with the 1st pneumostome, and the right chamber of stopping brake is provided with 2nd pneumostome.
As improvement, the right side of the 2nd rubber cup base is surrounded with the 1st spring location card article, the 2nd control valve spring Left end is connected on the 1st spring location card article;The right side on chassis is surrounded with the 2nd spring location card article, a left side for the 1st back-moving spring End is connected on the 2nd spring location card article;Liquid outlet channel is provided with out liquid bolt, and the right-hand member going out liquid bolt is provided with boss, goes out liquid spiral shell Bolt is provided with through liquid outlet channel, and the 2nd rubber cup is buckled on the right-hand member outward flange of boss.
Above-mentioned stopping brake QI KOU connects with the parking brake valve air gate of parking brake valve, the parking brake valve air inlet of parking brake valve and gas storage The gas receiver gas outlet connection of cylinder;The Foot braking valve air inlet of Foot braking valve connects with gas receiver gas outlet, pedal brake The Foot braking valve QI KOU of valve connects with service brake QI KOU;Liquid outlet channel connects with braking clamp.
Loader, described loader is respectively the 1st brake equipped with above-mentioned 2 brake pumps and 4 braking clamps, 2 brake pumps Pump and the 2nd brake pump;Described 4 braking clamps are respectively the 1st braking clamp, the 2nd braking clamp, the 3rd braking clamp and the 4th braking clamp, and the 1st Stopping brake QI KOU that brake pump is provided with and the stopping brake QI KOU that the 2nd brake pump is provided with all with the parking brake valve air gate of parking brake valve Connection, the parking brake valve air inlet of parking brake valve connects with the gas receiver gas outlet of gas receiver;The Foot braking valve of Foot braking valve enters QI KOU connects with gas receiver gas outlet, the service brake gas that the Foot braking valve QI KOU of Foot braking valve is provided with the 1st brake pump The service brake QI KOU that mouth is provided with the 2nd brake pump connects;Liquid outlet channel that 1st brake pump is provided with and the 2nd braking clamp, the 4th stop Car pincers connection, liquid outlet channel and the 1st braking clamp, the 3rd braking clamp that the 2nd brake pump is provided with connect.
The solution have the advantages that: loader uses the brake pump of two set independences of the present invention, and often set brake pump is responsible for control Making two braking clamps, even if a set of brake pump breaks down, the most another set of brake pump controls another two braking clamp, it is ensured that load The use safety of machine.It addition, one independent air chamber of the present invention controls an independent brake chamber, the 1st rubber cup center is only with one Individual 2nd push rod connects, and the 1st rubber cup will not be made unbalance stress phenomenon occur, and therefore, reliability of the present invention is high, and safety is good. It addition, the present invention is provided with the 1st control valve between fluid reservoir and brake chamber, the 1st control valve can control brake-fluid at fluid reservoir And can not have make the brake-fluid in brake chamber get more and more phenomenon with two-way flow between brake chamber, easy to use.Simultaneously Fluid reservoir is with bolts with brake chamber, and repair demolition is convenient.Loader two set brake pumps share a set of Foot braking valve, Parking brake valve, compact conformation, easy to use.
When loader parking, operate parking brake valve of the present invention, make to be positioned at the gases at high pressure pressure release of stopping brake air storage chamber, profit With the elastic reset of main spring, promoting the 1st piston to be moved to the left, make the 1st push rod promote the 1st rubber cup, the 1st rubber cup is same Time drive the 2nd push rod to be moved to the left, the 2nd push rod promotes the 2nd piston to be moved to the left, thus the brake-fluid pressure of the 2nd piston left end Increase, and then make the braking clamp of connection brake.When loader is driven a vehicle, operate parking brake valve of the present invention, make stopping brake air storage chamber Keeping connecting with gas receiver, the gases at high pressure in gas receiver promote main spring to move right, and the 1st rubber cup is at the bullet of auxiliary spring Property promote under, drive the 2nd push rod to move right, thus the brake-fluid pressure of the 2nd piston left end reduce, and then make the brake of connection Pincers release braking.It follows that use spring energy-storage braking and existing parking braking machine when loader brake pump of the present invention stops There is essential distinction in tool braking, it addition, present invention brake is by the brake disc on braking clamp brake hub rather than by stopping Brake disc braking on car clamp brake power transmission shaft, good braking effect, use safety, even if loader quality is excessive or is having slope The local parking of degree, does not haves the malfunctioning situation of parking yet, is not susceptible to accident, uses reliable.Service brake of the present invention and stopping Car braking is all to be braked by a set of braking clamp, simplifies structure, low cost.
When loader driving conditions needing a little stop and brake, operate Foot braking valve of the present invention, make service brake store up Air chamber keeps connecting with gas receiver, and the gases at high pressure in gas receiver promote the 1st rubber cup to be moved to the left, and the 1st rubber cup is same Time drive the 2nd push rod to be moved to the left, thus the brake-fluid pressure of the 2nd piston left end increases, and then makes the braking clamp of connection brake. When loader driving conditions being not required to main points and stopping and brake, operate Foot braking valve of the present invention, in making service brake air storage chamber Gas venting, gas pressure in service brake air storage chamber reduces, the 1st rubber cup under the resiliency urged of auxiliary spring, band Dynamic 2nd push rod moves right, thus the brake-fluid pressure of the 2nd piston left end reduces, and then makes the braking clamp of connection release braking. When loader is driven a vehicle, operate parking brake valve of the present invention, make stopping brake air storage chamber keep connecting with gas receiver.
Therefore, the present invention had both possessed brake function in the traveling of air boosting pump, but also had parking function, meanwhile, When any component failure such as air pump, pipeline, gas receiver, brake valves, existing brake pump all will lose brake function.And this Even if bright above-mentioned part fails, also automatically can be moved to the left under the effect that the machinery of main spring recovers, thus, make braking clamp move Make, make loader self-actuating brake, improve the traffic safety of loader.Structure based on the present invention, equipped with brake pump of the present invention Loader, when parking, can stop in certain gradient for a long time, it is not necessary to driver's long-term pedal brake pedal, saves The driving intensity of driver, time saving and energy saving, and also safety is high, and braking effect is more longlasting stable.
The present invention will not make the brake-fluid in two independent fluid reservoirs mutually alter liquid, improves braking effect and the valency of use Value.It addition, liquid outlet channel of the present invention is provided with control valve, it is therefore an objective to control the turnover of brake-fluid, when needing brake, high pressure brake-fluid Flow to braking clamp;When need not brake, brake-fluid flows back to brake chamber, until sealing liquid outlet channel and brake chamber.
Accompanying drawing explanation
1, Fig. 1 is brake pump front view of the present invention.
2, Fig. 2 is brake pump top view of the present invention.
3, Fig. 3 is brake pump left view of the present invention.
4, Fig. 4 is brake pump partial sectional view of the present invention.
5, Fig. 5 is that the A-A of Fig. 1 is to sectional view.
6, Fig. 6 is that brake pump the 1st control valve of the present invention is going out the structural representation of sap cavity.
7, Fig. 7 is that the present invention brakes and pumps out sap cavity structural representation.
8, Fig. 8 is the present invention the 1st control valve front view.
9, Fig. 9 is the present invention the 1st control valve top view.
10, Figure 10 is that the B-B of Fig. 9 is to sectional view.
11, Figure 11 is liquid storage tank structure schematic diagram of the present invention.
12, Figure 12 is fluid reservoir of the present invention and the 1st bolt, the 2nd bolt combine schematic diagram.
13, Figure 13 is brake chamber structural representation of the present invention.
14, Figure 14 is the present invention the 2nd control valve structural representation.
15, Figure 15 is that the present invention the 2nd rubber cup, the 2nd rubber cup base combine front view.
16, Figure 16 is that the present invention the 2nd rubber cup, the 2nd rubber cup base combine right view.
17, Figure 17 is that the present invention the 2nd rubber cup, the 2nd rubber cup base combine rearview.
18, Figure 18 is that the C-C of Figure 17 is to sectional view.
19, Figure 19 is chassis of the present invention front view.
20, Figure 20 is chassis of the present invention right view.
21, Figure 21 is chassis of the present invention rearview.
22, Figure 22 is that the D-D of Figure 21 is to sectional view.
23, Figure 23 is that the present invention goes out liquid bolt front view.
24, Figure 24 is that the present invention goes out liquid bolt left view.
25, Figure 25 is that the E-E of Figure 24 is to sectional view.
26, Figure 26 is that the present invention goes out liquid bolt right view.
27, Figure 27 is the present invention the 2nd piston front view.
28, Figure 28 is that the F-F of Figure 27 is to sectional view.
29, Figure 29 is the present invention the 2nd piston left view.
30, Figure 30 is the present invention the 2nd piston right view.
31, Figure 31 is two brake pump pipeline connection diagrams of loader of the present invention.
Detailed description of the invention
Describe in detail with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 7, brake pump of the present invention, including brake pump housing, in brake pump housing, it is provided with brake chamber, OK Car brake chamber and stopping brake chamber, in the present embodiment, be provided with brake chamber in brake chamber housing 52.Service brake cavity is positioned at parking The left side of brake chamber, brake chamber is positioned at the left side of service brake cavity;Described service brake cavity is provided with the 1st rubber cup 5, the 1st rubber Service brake cavity is divided into service brake left chamber 33 and service brake air storage chamber 2 by rubber bowl 5, and service brake air storage chamber 2 is positioned at The right side of service brake left chamber 33, service brake air storage chamber 2 is provided with service brake QI KOU 31;Stopping brake chamber is provided with the 1st and lives Plug the 27, the 1st piston 27 can move left and right in stopping brake chamber, and the 1st piston 27 excircle is provided with sealing ring 26, the 1st piston 27 Stopping brake chamber is divided into stopping brake air storage chamber 1 and the right chamber of stopping brake 32, and stopping brake air storage chamber 1 is positioned at stopping brake The left side of right chamber 32, stopping brake air storage chamber 1 is provided with on the left of stopping brake QI KOU the 30, the 1st piston 27 and is provided with the 1st push rod 4, the The right side of 1 piston 27 is provided with main spring 3, described brake chamber be provided with liquid outlet channel 6, brake chamber is provided with the 2nd piston 57, and the 2nd lives The left side of plug 57 is provided with the 1st back-moving spring 66, is provided with the 2nd push rod 64 on the left of the 1st rubber cup 5, and the 2nd push rod 64 is cased with auxiliary spring 74, the 2nd push rod 64 can promote the 2nd piston 57 to be moved to the left, and is fixed with push rod chassis on the left of the present embodiment the 1st rubber cup 5 8, the left side on push rod chassis 8 is fixed with the 2nd push rod 64;Brake chamber be arranged over out sap cavity 101, go out sap cavity 101 and brake chamber Communicating, go out sap cavity 101 and be arranged over fluid reservoir 50, go out sap cavity 101 and be provided with the 1st control valve, the 1st control valve controls fluid reservoir 50 Inner chamber communicates with going out sap cavity 101 or closes.The right-hand member of brake pump housing is provided with screwed hole, and screwed hole is provided with the adjustment screw of adaptation 11, adjust screw 11 and can limit the position that the 1st piston 27 moves right.Brake chamber be provided with brake switch 55;Service brake Left chamber 33 is provided with the 1st pneumostome 16, and the right chamber of stopping brake 32 is provided with the 2nd pneumostome 15.1st pneumostome 16 and big gas phase Logical, it is simple to the movement in service brake cavity of the 1st rubber cup 5, the 2nd pneumostome 15 communicates with air, it is simple to the 1st piston 27 exists The movement of stopping brake intracavity.
As shown in Fig. 6 to Figure 12, go out to be provided with between sap cavity 101 and brake chamber liquid passage 102 and fore-set guide through hole 103, the 1st control valve includes the 1st valve body 106, and the 1st valve body 106 is arranged over guide post 110, and the present embodiment guide post 110 is cone Shape bar.Guide post 110 is cased with sealing gasket 107, is provided with the 1st control valve spring 87, fore-set guide through hole 103 below the 1st valve body 106 Equipped with fore-set 108, the top of fore-set 108 withstands on the outside of the 1st valve body 106 lower surface.The present embodiment is below the 1st valve body 106 The upper end of spring fixed column the 109, the 1st control valve spring 87 being provided with one is set with and is fixed on spring fixed column 109, fore-set The top of 108 withstands on the off-centered outside of spring fixed column 109 lower surface.
As shown in Figure 27 and Figure 29, the centre of the 2nd piston 57 is provided with cannelure, and cannelure forms the 1st cylinder 93, annular The left end of groove forms the 2nd cylinder 112, and the right-hand member of cannelure forms the 3rd cylinder 118, the 1st cylinder the 93 and the 2nd cylinder Connected by round platform 111 transition between 112;When the 2nd piston 57 moves from left to right, the bottom of fore-set 108 is successively from the 1st cylinder The surface of body 93, the surface of round platform 111, slide into the surface of the 2nd cylinder 112, fore-set 108 along fore-set guide through hole 103 by Lower moves to eminence, thus the 1st valve body 106 is knocked over by fore-set 108, makes the 1st valve body 106 inclined, fluid reservoir 50 Inner chamber communicates with brake chamber by going out sap cavity 101;When the 2nd piston 57 moves from right to left, fore-set 108 bottom is successively from the 2nd The surface of cylinder 112, the surface of round platform 111, slide into the surface of the 1st cylinder 93, and fore-set 108 is along fore-set guide through hole 103 descend movement, thus the 1st valve body 106 returns to normal sealed condition, make the inner chamber of fluid reservoir 50 and go out sap cavity 101 no longer communicate.
As is illustrated by figs. 11 and 12, going out sap cavity 101 and be provided with female thread, the lower section of fluid reservoir 50 is fluid reservoir base plate 114, storage Flow container base plate 114 is provided with the 1st through hole 115, is provided with the 1st bolt in the lower section of the 1st through hole 115, above the 1st through hole 115 Being provided with the 2nd bolt, the 1st bolt includes the 1st bolt head the 105 and the 1st screw rod 117, and the 1st screw rod 117 is provided with external screw thread, the 1st The center of bolt is provided with through tapped through hole the 113, the 1st bolt and is screwed in out on sap cavity 101 by the 1st screw rod 117, the 1st bolt Head 105 is positioned at the top of sap cavity 101, and fluid reservoir base plate 114 is positioned at the top of the 1st bolt head 105;2nd bolt includes 2nd bolt head the 104 and the 2nd screw rod 116, the 2nd screw rod 116 is provided with external screw thread, and the center of the 2nd bolt is provided with through the 2nd and leads to Hole 118, the 2nd screw rod 116 is screwed on the tapped through hole 113 of the 1st bolt through the 1st through hole 115, and the 2nd bolt head 104 is positioned at storage The top of flow container base plate 114, fluid reservoir base plate 114 is fixed by the 1st bolt head the 105 and the 2nd bolt head 104.
As shown in Figure 13 to Figure 26, the left end of the 1st back-moving spring 66 is provided with chassis 68, the left end on chassis 68 and brake chamber Inwall contacts, and liquid outlet channel 6 is provided with the 2nd control valve, and described 2nd control valve includes the 2nd rubber cup the 80, the 2nd rubber cup Base the 78 and the 2nd control valve spring 70, the 2nd rubber cup 80 is positioned at the left side of the 2nd rubber cup base 78, the 2nd rubber peel The right-hand member of bowl base 78 is provided with the 2nd control valve spring 70, the 2nd control valve spring 70 and chassis 68 Elastic Contact;Chassis 68 is provided with Liquid-through hole 94;2nd rubber cup base 78 be circumferentially with the 2nd through hole 82, the center of the 2nd rubber cup 80 is provided with the 3rd through hole 81, the 2nd through hole 82 mutually staggers with the 3rd through hole 81.
The right side of the 2nd rubber cup base 78 is surrounded with the 1st spring location card article 83, a left side for the 2nd control valve spring 70 End is connected on the 1st spring location card article 83;The right side on chassis 68 is surrounded with the 2nd spring location card article 92, the 1st back-moving spring The left end of 66 is connected on the 2nd spring location card article 92;Liquid outlet channel 6 is provided with female thread, liquid outlet channel 6 by its be provided with interior Screw thread is screwed with out liquid bolt 72, and the right-hand member going out liquid bolt 72 is provided with boss 98, goes out liquid bolt 72 and is provided with through liquid outlet channel 76, 2nd rubber cup 80 is buckled on the right-hand member outward flange of boss 98.
As shown in Figure 27 to Figure 30, the left side of the 2nd piston 57 is provided with the 1st blind hole 91, and the right side of the 2nd piston 57 is provided with 2nd blind hole 92, the 1st cylinder 93 was provided with liquid passage 90, crosses liquid passage 90 and connects with the 1st blind hole 91;1st back-moving spring 66 Right side be positioned at the 1st blind hole 91 of the 2nd piston 57, the left side of the 2nd push rod 64 is positioned at the 2nd blind hole 92 of the 2nd piston 57, The periphery of 3 cylinders 118 is provided with the sealing cannelure in more than 1 road, seals cannelure built with piston packing, the present embodiment The periphery of the 3rd cylinder 118 is provided with two piston packings, is the 1st piston packing the 60, the 2nd piston packing 61 respectively.
As shown in figure 31, during use, stopping brake QI KOU 30 connects with the parking brake valve air gate 34 of parking brake valve 12, parking brake valve The parking brake valve air inlet 35 of 12 connects with the gas receiver gas outlet 36 of gas receiver 14;The Foot braking valve air inlet of Foot braking valve 13 Mouth 37 connects with gas receiver gas outlet 36, and the Foot braking valve QI KOU 38 of Foot braking valve 13 connects with service brake QI KOU 31; Liquid outlet channel 6 connects with braking clamp.
Embodiment of the present invention loader is respectively the 1st equipped with 2 described brake pumps and 4 braking clamps, 2 described brake pumps Brake pump the 120 and the 2nd brake pump 130;Described loader is equipped with 4 braking clamps, the respectively the 1st braking clamp the 17, the 2nd braking clamp 18, the 3rd braking clamp the 42 and the 4th braking clamp 43, stopping brake QI KOU the 30 and the 2nd brake pump 130 that the 1st brake pump 120 is provided with sets Some stopping brake QI KOU 30 all connect with the parking brake valve air gate 34 of parking brake valve 12, the parking brake valve air inlet of parking brake valve 12 35 with The gas receiver gas outlet 36 of gas receiver 14 connects;Foot braking valve air inlet 37 and the gas receiver gas outlet 36 of Foot braking valve 13 Connection, the service brake QI KOU 31 and the 2nd that the Foot braking valve QI KOU 38 of Foot braking valve 13 and the 1st brake pump 120 are provided with is stopped The service brake QI KOU 31 that car pump 130 is provided with connects;Liquid outlet channel the 6 and the 2nd braking clamp the 18, the 4th that 1st brake pump 120 is provided with Braking clamp 43 connects, and the liquid outlet channel 6 that the 2nd brake pump 130 is provided with connects with the 1st braking clamp the 17, the 3rd braking clamp 42.
The present embodiment stopping brake QI KOU 30 is connected with the parking brake valve air gate 34 of parking brake valve 12 by the 1st pipeline 10, hands The parking brake valve air inlet 35 of valve 12 stopped is connected with the gas receiver gas outlet 36 of gas receiver 14 by the 2nd pipeline the 25, the 3rd pipeline 24; The Foot braking valve air inlet 37 of Foot braking valve 13 is connected with gas receiver gas outlet 36 by the 3rd pipeline 24, Foot braking valve The pedal brake valve air gate 38 of 13 is connected with service brake QI KOU 31 by the 4th pipeline 9.When loader is driven a vehicle, operation is originally Invention parking brake valve, makes stopping brake air storage chamber keep connecting with gas receiver.
Gases at high pressure (gases at high pressure are produced by air pump) in gas receiver 14 are managed by the 3rd pipeline 24, threeway the 95, the 2nd Road 25, parking brake valve the 12, the 1st pipeline 10 enter the stopping brake air storage chamber 1 of the 1st brake pump the 120 and the 2nd brake pump 130, gas receiver Interior gases at high pressure promote main spring to move right by the 1st piston 27, and the 1st rubber cup is in the resiliency urged of auxiliary spring 74 Under, drive the 2nd push rod 64 to move right;2nd piston 57 moves right under the resiliency urged of the 1st back-moving spring 66, the 2nd piston On the left of in the of 57, brake-fluid pressure reduces, and then makes the braking clamp of connection release braking, makes braking clamp be in off position.Work as loading When machine stops, operate parking brake valve of the present invention, make to be positioned at the gases at high pressure pressure release of stopping brake air storage chamber, utilize the elasticity of main spring Reset, promote the 1st piston to be moved to the left, make the 1st push rod promote the 1st rubber cup, the 1st rubber cup to drive the 2nd push rod to the left Mobile, the 2nd push rod promotes the 2nd piston to be moved to the left, so that on the left of the 2nd piston, brake-fluid pressure increases in brake chamber, and then The braking clamp making connection is braked, and makes braking clamp in running order.
Gases at high pressure (gases at high pressure are produced by air pump) in gas receiver 14 are by the 3rd pipeline 24, threeway 95, foot-operated system Dynamic valve the 13, the 2nd pipeline 9 enters the service brake air storage chamber 2 of the 1st loader brake pump the 120 and the 2nd loader brake pump 130.
The unspecified content of the present invention is prior art, and those skilled in the art can be from the present embodiment and existing Technology obtains and inspires, and carries out deformation and obtains other embodiments.Therefore, protection scope of the present invention should be according to the guarantor of claim The scope of protecting determines.

Claims (10)

1. brake pump, including brake pump housing, brake pump housing is provided with brake chamber, service brake cavity and stopping brake chamber, driving Brake chamber is positioned at the left side in stopping brake chamber, and brake chamber is positioned at the left side of service brake cavity;Described service brake cavity is provided with the 1st rubber Rubber bowl (5), service brake cavity is divided into service brake left chamber (33) and service brake air storage chamber by the 1st rubber cup (5) (2), service brake air storage chamber (2) is positioned at the right side of service brake left chamber (33), and service brake air storage chamber (2) is provided with driving system Take offence mouth (31);Stopping brake chamber is provided with the 1st piston (27), and the 1st piston (27) can move left and right in stopping brake chamber, and the 1st Stopping brake chamber is divided into stopping brake air storage chamber (1) and the right chamber of stopping brake (32), stopping brake air storage chamber by piston (27) (1) being positioned at the left side of the right chamber of stopping brake (32), stopping brake air storage chamber (1) is provided with stopping brake QI KOU (30), the 1st piston (27) left side is provided with the 1st push rod (4), and the right side of the 1st piston (27) is provided with main spring (3), and the liquid that is provided with out of described brake chamber leads to Road (6), brake chamber is provided with the 2nd piston (57), and the left side of the 2nd piston (57) is provided with the 1st back-moving spring (66), the 1st rubber cup (5) left side is provided with the 2nd push rod (64), and the 2nd push rod (64) is cased with auxiliary spring (74), and the 2nd push rod (64) can promote the 2nd piston (57) it is moved to the left;Brake chamber be arranged over out sap cavity (101), go out sap cavity (101) and communicate with brake chamber, go out sap cavity (101) Being arranged over fluid reservoir (50), go out sap cavity (101) and be provided with the 1st control valve, the 1st control valve controls the inner chamber of fluid reservoir (50) and goes out Sap cavity (101) communicates or closes.
Brake pump the most according to claim 1, it is characterised in that: go out and be provided with liquid passage between sap cavity (101) and brake chamber (102) and fore-set guide through hole (103), the 1st control valve includes that the 1st valve body (106), the 1st valve body (106) are arranged over guide post (110), guide post (110) is cased with sealing gasket (107), and the 1st valve body (106) lower section is provided with the 1st control valve spring (87), and fore-set is led The outside of the 1st valve body (106) lower surface is withstood on equipped with fore-set (108), the top of fore-set (108) to through hole (103);2nd piston (57) centre is provided with cannelure, and cannelure forms the 1st cylinder (93), and the left end of cannelure forms the 2nd cylinder (112), The right-hand member of cannelure forms the 3rd cylinder (118), by round platform (111) mistake between the 1st cylinder (93) and the 2nd cylinder (112) Cross connection;When the 2nd piston (57) moves from left to right, the bottom of fore-set (108) successively from the surface of the 1st cylinder (93), The surface of round platform (111), slides into the surface of the 2nd cylinder (112), fore-set (108) along fore-set guide through hole (103) by lower Move to eminence, thus the 1st valve body (106) is knocked over by fore-set (108), make the 1st valve body (106) inclined, fluid reservoir (50) inner chamber communicates with brake chamber by going out sap cavity (101);When the 2nd piston (57) moves from right to left, fore-set (108) end End, successively from surface, the surface of round platform (111) of the 2nd cylinder (112), slides into the surface of the 1st cylinder (93), fore-set (108) descend movement along fore-set guide through hole (103), thus the 1st valve body (106) returns to normally block shape State, makes the inner chamber of fluid reservoir (50) no longer communicate with going out sap cavity (101).
Brake pump the most according to claim 1 or claim 2, it is characterised in that: go out sap cavity (101) and be provided with female thread, fluid reservoir (50) Lower section be fluid reservoir base plate (114), fluid reservoir base plate (114) is provided with the 1st through hole (115), in the lower section of the 1st through hole (115) 1st bolt is installed, is arranged above the 2nd bolt at the 1st through hole (115), the 1st bolt include the 1st bolt head (105) and 1st screw rod (117), the 1st screw rod (117) is provided with external screw thread, and the center of the 1st bolt is provided with through tapped through hole (113), and the 1st Bolt is screwed in out on sap cavity (101) by the 1st screw rod (117), and the 1st bolt head (105) is positioned at the top of sap cavity (101), Fluid reservoir base plate (114) is positioned at the top of the 1st bolt head (105);2nd bolt includes the 2nd bolt head (104) and the 2nd spiral shell Bar (116), the 2nd screw rod (116) is provided with external screw thread, and the center of the 2nd bolt is provided with the 2nd through through hole (118), the 2nd screw rod (116) being screwed on the tapped through hole (113) of the 1st bolt through the 1st through hole (115), the 2nd bolt head (104) is positioned at fluid reservoir The top of base plate (114), fluid reservoir base plate (114) is fixed by the 1st bolt head (105) and the 2nd bolt head (104).
Brake pump the most according to claim 3, it is characterised in that: the left end of the 1st back-moving spring (66) is provided with chassis (68), the end The left end of dish (68) contacts with the inwall of brake chamber, and liquid outlet channel (6) is provided with the 2nd control valve, and described 2nd control valve includes 2 rubber cups (80), the 2nd rubber cup base (78) and the 2nd control valve spring (70), the 2nd rubber cup (80) is positioned at the 2nd rubber The left side of rubber bowl base (78), the right-hand member of the 2nd rubber cup base (78) is provided with the 2nd control valve spring (70), and the 2nd controls Valve spring (70) and chassis (68) Elastic Contact;Chassis (68) is provided with liquid-through hole (94);The circumference of the 2nd rubber cup base (78) Being provided with the 2nd through hole (82), the center of the 2nd rubber cup (80) is provided with the 3rd through hole (81), the 2nd through hole (82) and the 3rd through hole (81) Mutually stagger.
Brake pump the most according to claim 4, it is characterised in that: the right-hand member of brake pump housing is provided with screwed hole, and screwed hole sets There is the adjustment screw (11) of adaptation, adjust screw (11) and the position that the 1st piston (27) moves right can be limited.
Brake pump the most according to claim 5, it is characterised in that: the left side of the 2nd piston (57) is provided with the 1st blind hole (91), The right side of the 2nd piston (57) is provided with the 2nd blind hole (92), and the 1st cylinder (93) was provided with liquid passage (90), crosses liquid passage (90) Connect with the 1st blind hole (91);The right-hand member of the 1st back-moving spring (66) is positioned at the 1st blind hole (91) of the 2nd piston (57), the 2nd push rod (64) left end is positioned at the 2nd blind hole (92) of the 2nd piston (57), and the periphery of the 3rd cylinder (118) is provided with more than 1 road Seal cannelure, seal cannelure built with piston packing.
Brake pump the most according to claim 6, it is characterised in that: brake chamber is provided with brake switch (55);The left chamber of service brake Room (33) is provided with the 1st pneumostome (16), and the right chamber of stopping brake (32) is provided with the 2nd pneumostome (15).
Brake pump the most according to claim 7, it is characterised in that: the right side of the 2nd rubber cup base (78) is surrounded with the 1st Spring location card article (83), the left end of the 2nd control valve spring (70) is connected on the 1st spring location card article (83);Chassis (68) Right side be surrounded with the 2nd spring location card article (92), the left end of the 1st back-moving spring (66) be connected to the 2nd spring location card article (92) on;Liquid outlet channel (6) is provided with out liquid bolt (72), and the right-hand member going out liquid bolt (72) is provided with boss (98), goes out liquid bolt (72) being provided with through liquid outlet channel (76), the 2nd rubber cup (80) is buckled on the right-hand member outward flange of boss (98).
Brake pump the most according to claim 8, it is characterised in that: stopping brake QI KOU (30) and the parking brake valve of parking brake valve (12) Gas outlet (34) connects, and parking brake valve air inlet (35) of parking brake valve (12) connects with the gas receiver gas outlet (36) of gas receiver (14) Logical;The Foot braking valve air inlet (37) of Foot braking valve (13) connects with gas receiver gas outlet (36), Foot braking valve (13) Foot braking valve QI KOU (38) connect with service brake QI KOU (31);Liquid outlet channel (6) connects with braking clamp.
10. loader, described loader divides equipped with brake pump described in 2 claim 8 and 4 braking clamps, described 2 brake pumps It is not the 1st brake pump (120) and the 2nd brake pump (130);Described 4 braking clamps are respectively the 1st braking clamp (17), the 2nd braking clamp (18), the 3rd braking clamp (42) and the 4th braking clamp (43), it is characterised in that: the stopping brake QI KOU that the 1st brake pump (120) is provided with (30) and the stopping brake QI KOU (30) that is provided with of the 2nd brake pump (130) all with the parking brake valve air gate (34) of parking brake valve (12) even Logical, parking brake valve air inlet (35) of parking brake valve (12) connects with the gas receiver gas outlet (36) of gas receiver (14);Foot braking valve (13) Foot braking valve air inlet (37) connects with gas receiver gas outlet (36), the Foot braking valve gas of Foot braking valve (13) Service brake QI KOU (31) that mouthful (38) and the 1st brake pump (120) are provided with and the service brake gas that the 2nd brake pump (130) is provided with Mouth (31) connection;The liquid outlet channel (6) that 1st brake pump (120) is provided with connects with the 2nd braking clamp (18), the 4th braking clamp (43), The liquid outlet channel (6) that 2nd brake pump (130) is provided with connects with the 1st braking clamp (17), the 3rd braking clamp (42).
CN201610597395.7A 2016-07-26 2016-07-26 Brake pump and its application on loading machine Ceased CN106043258B (en)

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN106884912A (en) * 2017-03-08 2017-06-23 广西柳工机械股份有限公司 Engineering machinery brake chamber
CN108973961A (en) * 2018-09-27 2018-12-11 绍兴精致机械制造有限公司 A kind of air booster
CN110091852A (en) * 2019-06-03 2019-08-06 梁芳文 A kind of strength dual circuit wheel cylinder
CN110173524A (en) * 2019-06-21 2019-08-27 莱州虎威机械科技有限公司 A kind of new brake pump
CN110173525A (en) * 2019-06-21 2019-08-27 莱州虎威机械科技有限公司 Brake pump
CN110173523A (en) * 2019-06-21 2019-08-27 莱州虎威机械科技有限公司 New brake pump
CN114278687A (en) * 2021-11-15 2022-04-05 西安航空制动科技有限公司 Marine environment resistant air pressure brake valve

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CN205930698U (en) * 2016-07-26 2017-02-08 聂瑞波 Brake pump and loader

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106884912A (en) * 2017-03-08 2017-06-23 广西柳工机械股份有限公司 Engineering machinery brake chamber
CN108973961A (en) * 2018-09-27 2018-12-11 绍兴精致机械制造有限公司 A kind of air booster
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CN110173523A (en) * 2019-06-21 2019-08-27 莱州虎威机械科技有限公司 New brake pump
CN114278687A (en) * 2021-11-15 2022-04-05 西安航空制动科技有限公司 Marine environment resistant air pressure brake valve
CN114278687B (en) * 2021-11-15 2023-06-30 西安航空制动科技有限公司 Ocean environment-resistant pneumatic brake valve

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