CN206071984U - A kind of hydraulic motor arrestment mechanism and hydraulic motor - Google Patents
A kind of hydraulic motor arrestment mechanism and hydraulic motor Download PDFInfo
- Publication number
- CN206071984U CN206071984U CN201620957351.6U CN201620957351U CN206071984U CN 206071984 U CN206071984 U CN 206071984U CN 201620957351 U CN201620957351 U CN 201620957351U CN 206071984 U CN206071984 U CN 206071984U
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- brake piston
- hydraulic motor
- brake
- oil
- spill port
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Abstract
The utility model discloses a kind of hydraulic motor arrestment mechanism, increases spill port on brake piston, and during work, spill port closing, brake block is free state；During hydraulic motor stopping brake, supply without hydraulic oil, spill port is opened, hydraulic oil Jing spill ports exit into oil back chamber, realize the stopping brake of hydraulic motor, without the need for larger change is done to hydraulic motor, simple structure is easy to process, cost is reduced.In addition; spill port adopts throttle orifice; due to the effect of throttle orifice; brake piston intracavity hydraulic oil will not moment off-load so that parking is realized in laminating to brake block in time, but there is certain hour slowly off-load; brake block can be protected to avoid excessive loss; lower buffer stop can be made to connect again avoids driver because inertia is toward leaning forward, and reduces use cost, it is ensured that traffic safety.
Description
Technical field
This utility model belongs to the structure-design technique field of arrestment mechanism, and in particular to a kind of hydraulic motor brake
Structure and hydraulic motor.
Background technology
Hydraulic motor is a kind of executive component of hydraulic system, and it is defeated that the liquid pressure energy that hydraulic pump is provided is changed into which by it
The mechanical energy (torque and rotating speed) of shaft.Hydraulic motor is divided by its structure type and can be divided into gear type, vane type, plunger type
And other forms, plunger hydraulic motor is that, by being input into hydraulic oil, hydraulic oil effect promotes plunger to enclose and rotate around the spindle, from oblique
Disk eminence is for linear motion toward lower, and opposite side plunger on certain angle swash plate, by oil release, forms one and socializes transhipment
It is dynamic, and so on, motor speed output.
Hydraulic motor is integrated with reductor, has the advantages that integrated level height, small volume, transmission power are big, extensively should at present
For excavator, agricultural harvesting machinery, realize power transmission, drive walking.Due to the requirement of function, walk motor with hydraulic pressure should have
Standby parking braking function, motor built-in brake block solve brake automatically during walking, brake block laminating during parking, lock motor.For reality
Now the function, can be realized by increasing check valve on braking intracavity oil circuit is entered, and during work, check valve is opened, hydraulic oil
Brake piston movement releasing of brake piece is promoted into braking intracavity, during stopping brake, stops hydraulic oil supply, by check valve
On open up aperture and realize oil return, brake piston resets braking, and which needs check valve is arranged on oil circuit, and needs in list
Through hole oil return is opened up on valve, version is complex, high cost, be unfavorable for batch production.
Therefore, in view of problem above, it is necessary to propose a kind of new mode of braking, by increasing section on brake piston
Discharge orifice, simply, effectively solves the problems referred to above, and without the need for larger change is done to hydraulic motor, easy to process, cost is reduced.
Utility model content
In view of this, this utility model provides a kind of hydraulic motor arrestment mechanism, by increasing on brake piston
Throttle orifice, realizes the stopping brake of hydraulic motor, and without the need for larger change is done to hydraulic motor, simple structure is easy to process, into
This reduction.
According to a kind of hydraulic motor arrestment mechanism that the purpose of this utility model is proposed, it is arranged in hydraulic motor casing
Portion, offers oil circuit in the casing, the arrestment mechanism include brake piston, the tripping spring being connected on brake piston with
And the brake block of brake piston bottom is arranged at, spill port, under original state, brake piston are further opened with the brake piston
Brake block braking is pushed by the effect of tripping spring pretightning force；
During work, hydraulic oil Jing oil circuits enter brake piston intracavity, and oil pressure is acted on brake piston, promote brake piston
Overcome, fit with the end cap of hydraulic motor at the top of brake piston, spill port closing, brake block is certainly
By state；During hydraulic motor stopping brake, supply without hydraulic oil, in the presence of tripping spring, brake piston moves downward multiple
Position compresses brake block, and spill port is opened, and the hydraulic oil Jing spill ports of oil circuit and brake piston intracavity exit into oil back chamber, is stopped
To parking.
Preferably, the spill port is throttle orifice.
Preferably, the spill port is one or equally distributed multiple.
Preferably, at least one circle sealing ring is provided between the brake piston and brake piston chamber.
Preferably, the brake piston is separately positioned in the axial direction with end cap, and the oil circuit is connected to the brake piston
The bottom in chamber, hydraulic oil are entered brake piston intracavity and promote to move on brake piston by oil circuit and contacted with end cover surface, described
Brake piston surface is matched with end cap inner surface.
Preferably, the brake piston includes upper and lower two parts, and upper part extends outward a boss, the spill port into
Type is on the boss, and the oil circuit is connected with the cavity of the boss bottom.
A kind of plunger hydraulic motor, including casing, it is arranged at the rotor assembly of the casing internal and around described turn
The plunger assembly that sub-component is arranged, the casing internal are additionally provided with arrestment mechanism, and the arrestment mechanism is arranged at the rotor
Component external.
Compared with prior art, disclosed in this utility model, the advantage of hydraulic motor arrestment mechanism is：
By increasing spill port on brake piston, during work, spill port closing, brake block is free state；Hydraulic pressure horse
During up to stopping brake, supply without hydraulic oil, spill port is opened, hydraulic oil Jing spill ports exit into oil back chamber, realize hydraulic pressure horse
The stopping brake for reaching, without the need for larger change is done to hydraulic motor, simple structure is easy to process, and cost is reduced.
Additionally, spill port adopts throttle orifice, due to the effect of throttle orifice, brake piston intracavity hydraulic oil will not be unloaded moment
Lotus so that parking is realized in laminating to brake block in time, but there is certain hour slowly off-load, and brake block can be protected to avoid excessively
Loss, can make to connect lower buffer stop again and avoid driver because inertia is toward leaning forward, reduce use cost, it is ensured that traffic safety.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Structural representations of the Fig. 1 for arrestment mechanism.
Fig. 2 is partial enlarged drawing in Fig. 1.
Sectional views of the Fig. 3 for hydraulic motor.
The title of the digital or alphabetical representative corresponding component in figure：
1st, casing 2, rotor assembly 3, plunger assembly 4, arrestment mechanism 5, end cap 6, oil circuit 7, swash plate 41, braking
Piston 42, tripping spring 43, brake block 44, spill port 45, sealing ring 46, boss 47, brake piston chamber 48, oil return
Chamber
Specific embodiment
As described in background, in conventional art by enter braking intracavity oil circuit on increase check valve come realize system
Dynamic, which needs check valve is arranged on oil circuit, and needs through hole oil return is opened up on check valve, and version is more multiple
Miscellaneous, high cost is unfavorable for batch production.
This utility model is directed to deficiency of the prior art, there is provided a kind of hydraulic motor arrestment mechanism, by system
Increase throttle orifice in piston, realize the stopping brake of hydraulic motor, without the need for larger change, structure letter are done to hydraulic motor
Single, easy to process, cost is reduced.
The technical solution of the utility model will be clearly and completely described by specific embodiment below.Obviously,
Described embodiment is only a part of embodiment of this utility model, rather than the embodiment of whole.Based on this utility model
In embodiment, the every other enforcement obtained under the premise of creative work is not made by those of ordinary skill in the art
Example, belongs to the scope of this utility model protection.
Please also refer to Fig. 1, Fig. 2, as illustrated, a kind of hydraulic motor arrestment mechanism, is arranged at hydraulic motor casing 1
Inside, offers oil circuit 6 in casing 1, arrestment mechanism 4 includes brake piston 41, the tripping spring being connected on brake piston 41
42 and the brake block 43 of 41 bottom of brake piston is arranged at, on brake piston, is further opened with spill port 44, under original state, system
Piston is pushed brake block braking by the effect of tripping spring pretightning force.
During work, hydraulic oil Jing oil circuits 6 are entered in brake piston chamber 47, and oil pressure is acted on brake piston 41, promote system
Piston 41 overcomes, and fits with the end cap 5 of hydraulic motor at the top of brake piston 41, now oil return
Hole 44 is closed, and brake block is free state；During hydraulic motor stopping brake, supply without hydraulic oil, in the effect of tripping spring 42
Under, brake piston 41 moves downward reset and compresses brake block 43, and spill port is opened, the hydraulic oil of oil circuit 6 and brake piston intracavity
Jing spill ports exit into oil back chamber 48, stop to parking.This utility model is realized by increasing spill port on brake piston
The stopping brake of hydraulic motor, without the need for larger change is done to hydraulic motor, simple structure is easy to process, and cost is reduced.
Wherein, spill port is throttle orifice, due to the effect of throttle orifice, brake piston intracavity hydraulic oil will not moment off-load,
So that brake block is fitted in time realizes parking, but there is certain hour slowly off-load, brake block can be protected to avoid excessively damage
Consumption, can make to connect lower buffer stop again and avoid driver because inertia is toward leaning forward, reduce use cost, it is ensured that traffic safety.
Spill port is one or equally distributed multiple, and particular number can be according to using needing to set, and here is not limited.
At least one circle sealing ring 45 is provided between brake piston 41 and brake piston chamber 47.Fluid is avoided to reveal.Specifically set
When putting, sealing ring can be snapped in fixed in the groove by the shaped grooves on brake piston outer ring.
Brake piston 41 is separately positioned in the axial direction with end cap 5, and oil circuit 6 is connected to the bottom in brake piston chamber, hydraulic oil
Enter brake piston intracavity and promote to move on brake piston by oil circuit and contact with end cover surface, in brake piston surface and end cap
Surface matches, it is ensured that operationally spill port is closed state, it is to avoid oil return.
Brake piston includes upper and lower two parts, and upper part extends outward a boss 46, and spill port takes shape in the boss 46
On, and oil circuit connected with the cavity of boss bottom.By arranging, boss is convenient to arrange spill port and oil-feed.Spill port is generally adopted
With the form be arrangeding in parallel with casing central shaft, the mode such as alternatively it is obliquely installed, as long as under ensureing spill port in working order
Sealing, is not specifically limited.
Fig. 3 is referred to, as illustrated, a kind of plunger hydraulic motor, including casing 1, the rotor being arranged inside casing 1
The plunger assembly 3 that component 2 is arranged with surrounding rotor component 2, is additionally provided with arrestment mechanism 4 inside casing 1, arrestment mechanism 4 is arranged
Outside rotor assembly.Plunger hydraulic motor is that, by being input into hydraulic oil, hydraulic oil effect promotes plunger assembly to surround main shaft
Rotation, for linear motion toward lower from 7 eminence of swash plate, oil is released on certain angle swash plate by opposite side plunger assembly,
Form rotary motion in a week, and so on, motor speed output.
Utility model works principle is as follows：
When hydraulic motor is walked, working voltage oil enters brake piston chamber 47 by oil circuit 6, under action of hydraulic force, pushes away
Dynamic brake piston 41 overcomes tripping spring 42 to move upwards, and brake piston 41 is fitted with 5 inner surface of end cap, in brake piston chamber 47
Hydraulic oil cannot exit into oil back chamber from throttle orifice, brake piston chamber keeps high pressure conditions, and free state at brake block,
Act on without external force, do not produce frictional force, hydraulic motor startup rotates into working condition, and solution brake process terminates.
And in hydraulic motor stopping brake, enter in brake piston chamber 47 without hydraulic oil, in the case where tripping spring 42 is acted on
Brake piston 41 is moved downward, and the hydraulic oil in oil circuit 6 and brake piston 47 exits into oil back chamber 48 by throttle orifice, from stopping
Car is to parking.
The utility model discloses a kind of hydraulic motor arrestment mechanism, by increasing spill port, work on brake piston
When making, spill port closing, brake block is free state；During hydraulic motor stopping brake, supply without hydraulic oil, spill port is opened,
Hydraulic oil Jing spill ports exit into oil back chamber, realize the stopping brake of hydraulic motor, without the need for larger changing is done to hydraulic motor
Dynamic, simple structure is easy to process, and cost is reduced.
Additionally, spill port adopts throttle orifice, due to the effect of throttle orifice, brake piston intracavity hydraulic oil will not be unloaded moment
Lotus so that parking is realized in laminating to brake block in time, but there is certain hour slowly off-load, and brake block can be protected to avoid excessively
Loss, can make to connect lower buffer stop again and avoid driver because inertia is toward leaning forward, reduce use cost, it is ensured that traffic safety.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use that this practicality is new
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (7)
1. a kind of hydraulic motor arrestment mechanism, is arranged inside hydraulic motor casing, it is characterised in that open up in the casing
There is oil circuit, the arrestment mechanism includes brake piston, the tripping spring being connected on brake piston and is arranged at brake piston
The brake block of bottom, is further opened with spill port on the brake piston, under original state, brake piston receives tripping spring pretightning force
Effect pushes brake block braking；
During work, hydraulic oil Jing oil circuits enter brake piston intracavity, and oil pressure is acted on brake piston, promote brake piston to overcome
Move in tripping spring pretightning force, fit with the end cap of hydraulic motor at the top of brake piston, spill port closing, brake block are free shape
State；During hydraulic motor stopping brake, supply without hydraulic oil, in the presence of tripping spring, brake piston moves downward reset pressure
Tight brake block, spill port are opened, and the hydraulic oil Jing spill ports of oil circuit and brake piston intracavity exit into oil back chamber, are stopped to staying
Car.
2. hydraulic motor arrestment mechanism according to claim 1, it is characterised in that the spill port is throttle orifice.
3. hydraulic motor arrestment mechanism according to claim 1, it is characterised in that the spill port is or uniform
What is be distributed is multiple.
4. hydraulic motor arrestment mechanism according to claim 1, it is characterised in that the brake piston and brake piston
At least one circle sealing ring is provided between chamber.
5. hydraulic motor arrestment mechanism according to claim 1, it is characterised in that the brake piston is with end cap in axle
Separately positioned upwards, the oil circuit is connected to the bottom in the brake piston chamber, and hydraulic oil enters brake piston chamber by oil circuit
It is interior and promote on brake piston move contact with end cover surface, the brake piston surface is matched with end cap inner surface.
6. hydraulic motor arrestment mechanism according to claim 1, it is characterised in that the brake piston includes upper and lower two
Part, upper part extend outward a boss, and the spill port is taken shape on the boss, and the oil circuit and the boss bottom
Cavity connection.
7. a kind of plunger hydraulic motor, including casing, the rotor assembly for being arranged at the casing internal and the circular rotor
The plunger assembly that component is arranged, it is characterised in that the casing internal is additionally provided with the braking described in any one of claim 1-6
Mechanism, the arrestment mechanism are arranged at outside the rotor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620957351.6U CN206071984U (en) | 2016-08-26 | 2016-08-26 | A kind of hydraulic motor arrestment mechanism and hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620957351.6U CN206071984U (en) | 2016-08-26 | 2016-08-26 | A kind of hydraulic motor arrestment mechanism and hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206071984U true CN206071984U (en) | 2017-04-05 |
Family
ID=58432956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620957351.6U Active CN206071984U (en) | 2016-08-26 | 2016-08-26 | A kind of hydraulic motor arrestment mechanism and hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206071984U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043458A (en) * | 2019-05-28 | 2019-07-23 | 启东高压油泵有限公司 | A kind of axial piston motor of tape jam detection |
| CN110541864A (en) * | 2019-08-29 | 2019-12-06 | 上海布拓传动***设备有限公司 | Hydraulic motor with brake integrated encoder |
-
2016
- 2016-08-26 CN CN201620957351.6U patent/CN206071984U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043458A (en) * | 2019-05-28 | 2019-07-23 | 启东高压油泵有限公司 | A kind of axial piston motor of tape jam detection |
| CN110541864A (en) * | 2019-08-29 | 2019-12-06 | 上海布拓传动***设备有限公司 | Hydraulic motor with brake integrated encoder |
| CN110541864B (en) * | 2019-08-29 | 2024-05-28 | 上海布拓传动***设备有限公司 | Hydraulic motor with integrated encoder of brake |
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