CN106840629B - A kind of plunger piston slippery boots assembly durability test device - Google Patents
A kind of plunger piston slippery boots assembly durability test device Download PDFInfo
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- CN106840629B CN106840629B CN201710050952.8A CN201710050952A CN106840629B CN 106840629 B CN106840629 B CN 106840629B CN 201710050952 A CN201710050952 A CN 201710050952A CN 106840629 B CN106840629 B CN 106840629B
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- plunger
- briquetting
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- lower cover
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of plunger piston slippery boots assembly durability test devices.Plunger piston slippery boots assembly durability test device of the present invention, plunger hole and piston shoes hole are equipped in lower cover, briquetting hole is equipped in upper cover, the plunger is mounted in plunger hole, piston shoes are mounted in piston shoes hole, briquetting is mounted in the briquetting hole of upper cover, upper cover and lower cover are connected by screw to, the other end for adjusting screw passes through upper cover and is flexibly connected with briquetting to adjust briquetting and piston shoes and coincide, motor is connected by shaft coupling with hydraulic pump, the oil inlet of hydraulic pump is connected with fuel tank, the oil outlet of hydraulic pump respectively with the oil inlet of overflow valve, one end of pressure reducing valve is connected with the oil inlet of 2/2-way solenoid directional control valve, the oil outlet of overflow valve is connected with fuel tank, the other end of pressure reducing valve is connected with across lower cover with the epicoele of plunger, the oil outlet of 2/2-way solenoid directional control valve is connected with the cavity of resorption of plunger, 2/2-way electromagnetic switch The electromagnet of valve is connected with counter.
Description
Technical field
The present invention relates to a kind of plunger piston slippery boots assembly durability test devices.
Background technique
Plunger pump, motor have high pressure, huge discharge, high reliability, therefore occupy critically important status in Hydraulic Field.And
Plunger piston slippery boots assembly is one of its key part, it is related to the performance and reliability index of entire product.Plunger pump, motor exist
Often occurring plunger piston slippery boots separation in practical application leads to whole pump, motor failure, therefore the durability of plunger piston slippery boots assembly is direct
The service life length of relationship plunger pump, motor.
Domestic plunger pump, motor manufacturing enterprise, for all not doing durability test after plunger piston slippery boots agglomeration.But it is right
It is easy to happen plunger piston slippery boots in faster variable frequency and severe operating condition and falls off separation for Variable plunger pump, motor.
It not only scraps entire plunger pump, motor, can have a greatly reduced quality in the credit worthiness of user, lead to very big loss.
Summary of the invention
The durability for carrying out simulation operating condition the purpose of the present invention is to provide a kind of pair of plunger piston slippery boots assembly is tested, and is tested
Demonstrate,prove the plunger piston slippery boots assembly durability test device of plunger piston slippery boots assembly durability index.
The present invention is achieved through the following technical solutions.
A kind of plunger piston slippery boots assembly durability test device, by fuel tank, motor, shaft coupling, hydraulic pump, overflow valve, two
Two electric change valves, pressure reducing valve, plunger, piston shoes, screw, adjust screw, upper cover, briquetting and lower cover composition at counter, described
Upper cover and lower cover are all solid constructions, and plunger hole and piston shoes hole are equipped in lower cover, and briquetting hole, the plunger are equipped in upper cover
It is mounted in plunger hole and plunger and lower cover forms small―gap suture cooperation, piston shoes are mounted in piston shoes hole and constitute in piston shoes and lower cover
Machinery positioning, piston shoes are located at the top of plunger, and briquetting is mounted in the briquetting hole of upper cover, and upper cover and lower cover are connected by screw to,
The one end for adjusting screw is located at the outside of upper cover, and the other end for adjusting screw passes through upper cover and is flexibly connected with briquetting to adjust briquetting
It coincide with piston shoes, motor is connected by shaft coupling with hydraulic pump, and the oil inlet of hydraulic pump is connected with fuel tank, and hydraulic pump goes out
Hydraulic fluid port is connected with the oil inlet of the oil inlet of overflow valve, one end of pressure reducing valve and 2/2-way solenoid directional control valve respectively, overflow
The oil outlet of valve is connected with fuel tank, and the other end of pressure reducing valve passes through lower cover and is connected with the epicoele of plunger, 2/2-way electromagnetism
The oil outlet of reversal valve is connected with the cavity of resorption of plunger, and the unloading port of 2/2-way solenoid directional control valve is connected with fuel tank, and two
The electromagnet of two electric change valves is connected with counter.
Further, the present invention is equipped with briquetting sealing ring on the contact surface in the briquetting and briquetting hole.
Further, the present invention is equipped with sealing ring on the contact surface of the upper cover and lower cover.
The present invention for plunger pump, motor at runtime, often will appear from big flow to the variation of small flow and from
High pressure is to the conversion of low pressure, and at this moment plunger will receive the pulling-out force for separating plunger with piston shoes.It is simulated and is pressed using apparatus of the present invention
The variation of power, while being counted using counter, very easily plunger piston slippery boots assembly durability is tested.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
Embodiment 1
As shown in Figure 1, a kind of plunger piston slippery boots assembly durability test device, by fuel tank 1, motor 2, shaft coupling 3, hydraulic pump
4, overflow valve 5,2/2-way solenoid directional control valve 6, counter 7, pressure reducing valve 8, plunger 9, piston shoes 10, screw 13, adjust screw 14,
Upper cover 15, briquetting 16 and lower cover 17 form, and the upper cover 15 and lower cover 17 are all solid constructions, and plunger hole is equipped in lower cover 17
18 and piston shoes hole 19, it is equipped with briquetting hole 20 in upper cover 15, the plunger 9 is mounted in plunger hole 18 and plunger 9 and lower cover 17
Formation small―gap suture cooperation, piston shoes 10 are mounted in piston shoes hole 19 and composition machinery positioning in piston shoes 10 and lower cover 17, and piston shoes 10
In the top of plunger 9, briquetting 16 is mounted in the briquetting hole 20 of upper cover 15, is equipped on the contact surface in briquetting 16 with briquetting hole 20
Briquetting sealing ring 12, upper cover 15 and lower cover 17 are connected by screw 13, and sealing is equipped on the contact surface of upper cover 15 and lower cover 17
Circle 11, the one end for adjusting screw 14 are located at the outside of upper cover 15, and the other end for adjusting screw 14 passes through upper cover 15 and briquetting 16 is living
Dynamic connection is coincide with adjusting briquetting 16 and piston shoes 10, and motor 2 is connected by shaft coupling 3 with hydraulic pump 4, the oil inlet of hydraulic pump 4
Mouthful be connected with fuel tank 1, the oil outlet of hydraulic pump 4 respectively with the oil inlet of overflow valve 5, one end of pressure reducing valve 8 and 2/2-way
The oil inlet of solenoid directional control valve 6 is connected, and the oil outlet of overflow valve 5 is connected with fuel tank 1, and the other end of pressure reducing valve 8 passes through down
Lid 17 is connected with the epicoele of plunger 9, and the oil outlet of 2/2-way solenoid directional control valve 6 is connected with the cavity of resorption of plunger 9, and two two
The unloading port of electric change valve 6 is connected with fuel tank 1, and the electromagnet of 2/2-way solenoid directional control valve 6 is connected with counter 7
It connects.
Test method of the invention are as follows: piston shoes 10 are fixed, and top and the lower part of plunger 9 are sealed, then in plunger 9
Top be persistently added on pressure P1, be added on pressure P2 in 9 lower part of plunger, and the pressure P2 of plunger lower part can realize load off-load,
As the load off-load plunger 9 and piston shoes 10 of pressure P2 is just by pullling repeatedly, needed for being simply provided by counter 7
The frequency that pulls give 6 square-wave signal of 2/2-way solenoid directional control valve and reach automatic load unloader test effect.Wherein pressure P1
Setting value to be that plunger 9 is practical suffered during exercise pull area of the force value divided by 9 top of plunger by downward force, pressure P2
For plunger pump, the maximal pressure force value of motor practical application.
Claims (3)
1. a kind of plunger piston slippery boots assembly durability test device, it is characterized in that by fuel tank (1), motor (2), shaft coupling (3), hydraulic
Pump (4), overflow valve (5), 2/2-way solenoid directional control valve (6), counter (7), pressure reducing valve (8), plunger (9), piston shoes (10), spiral shell
It follows closely (13), adjust screw (14), upper cover (15), briquetting (16) and lower cover (17) composition, the upper cover (15) and lower cover (17) are all
It is solid construction, is equipped with plunger hole (18) and piston shoes hole (19) in lower cover (17), is equipped with briquetting hole (20) in upper cover (15),
The plunger (9) is mounted in plunger hole (18) and plunger (9) and lower cover (17) form small―gap suture cooperation, and piston shoes (10) are mounted on
Machinery positioning is constituted in piston shoes hole (19) and in piston shoes (10) and lower cover (17), piston shoes (10) are located at the top of plunger (9), briquetting
(16) it is mounted in the briquetting hole (20) of upper cover (15), upper cover (15) and lower cover (17) are connected by screw (13), adjust screw
(14) one end is located at the outside of upper cover (15), and the other end for adjusting screw (14) passes through upper cover (15) and briquetting (16) activity even
It connects to adjust briquetting (16) and piston shoes (10) and coincide, motor (2) is connected by shaft coupling (3) with hydraulic pump (4), hydraulic pump
(4) oil inlet is connected with fuel tank (1), the oil outlet of hydraulic pump (4) respectively with the oil inlet of overflow valve (5), pressure reducing valve (8)
One end be connected with the oil inlet of 2/2-way solenoid directional control valve (6), the oil outlet of overflow valve (5) is connected with fuel tank (1),
The other end of pressure reducing valve (8) passes through lower cover (17) and is connected with the epicoele of plunger (9), and 2/2-way solenoid directional control valve (6) goes out
Hydraulic fluid port is connected with the cavity of resorption of plunger (9), and the unloading port of 2/2-way solenoid directional control valve (6) is connected with fuel tank (1), and two two
The electromagnet of electric change valve (6) is connected with counter (7).
2. a kind of plunger piston slippery boots assembly durability test device according to claim 1, it is characterized in that in the briquetting
(16) briquetting sealing ring (12) are equipped with the contact surface of briquetting hole (20).
3. a kind of plunger piston slippery boots assembly durability test device according to claim 1, it is characterized in that in the upper cover
(15) and the contact surface of lower cover (17) is equipped with sealing ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050952.8A CN106840629B (en) | 2017-01-23 | 2017-01-23 | A kind of plunger piston slippery boots assembly durability test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050952.8A CN106840629B (en) | 2017-01-23 | 2017-01-23 | A kind of plunger piston slippery boots assembly durability test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106840629A CN106840629A (en) | 2017-06-13 |
| CN106840629B true CN106840629B (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710050952.8A Active CN106840629B (en) | 2017-01-23 | 2017-01-23 | A kind of plunger piston slippery boots assembly durability test device |
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| CN (1) | CN106840629B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876784B (en) * | 2022-05-24 | 2023-05-30 | 浙江大学高端装备研究院 | Sliding shoe pull-out fault simulation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001271763A (en) * | 2000-03-27 | 2001-10-05 | Hitachi Ltd | Axial plunger pump |
| CN102042934A (en) * | 2010-06-29 | 2011-05-04 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Durability test method for central rotary joint and special device |
| CN104204363A (en) * | 2012-04-05 | 2014-12-10 | 建筑工具有限公司 | Hydraulic attachment |
| CN104458466A (en) * | 2014-10-27 | 2015-03-25 | 贵州大学 | Friction performance testing device for slipper pair of high-pressure axial plunger pump |
| CN106289740A (en) * | 2016-07-29 | 2017-01-04 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of frock testing the axial pulling-out force of plunger displacement pump slippery boots assembly and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7421888B2 (en) * | 2005-12-12 | 2008-09-09 | Southwest Research Institute | Regenerative system for testing torque converters and other transmission coupling devices |
-
2017
- 2017-01-23 CN CN201710050952.8A patent/CN106840629B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001271763A (en) * | 2000-03-27 | 2001-10-05 | Hitachi Ltd | Axial plunger pump |
| CN102042934A (en) * | 2010-06-29 | 2011-05-04 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Durability test method for central rotary joint and special device |
| CN104204363A (en) * | 2012-04-05 | 2014-12-10 | 建筑工具有限公司 | Hydraulic attachment |
| CN104458466A (en) * | 2014-10-27 | 2015-03-25 | 贵州大学 | Friction performance testing device for slipper pair of high-pressure axial plunger pump |
| CN106289740A (en) * | 2016-07-29 | 2017-01-04 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of frock testing the axial pulling-out force of plunger displacement pump slippery boots assembly and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106840629A (en) | 2017-06-13 |
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