CN204403006U - A kind of can recovery test power consumption oil hydraulic pump and motor test rig - Google Patents
A kind of can recovery test power consumption oil hydraulic pump and motor test rig Download PDFInfo
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- CN204403006U CN204403006U CN201420820118.4U CN201420820118U CN204403006U CN 204403006 U CN204403006 U CN 204403006U CN 201420820118 U CN201420820118 U CN 201420820118U CN 204403006 U CN204403006 U CN 204403006U
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Abstract
The utility model discloses a kind of can recovery test power consumption oil hydraulic pump and motor test rig, power composite box has two input shaft ends and an output shaft end; First input shaft end of power composite box is connected with the output shaft of prime mover, and the second input shaft end is connected with the output shaft of gearbox, and the output shaft end of power composite box is connected by the input shaft of test pump input pickup with experimental liquid press pump; The output oil port of experimental liquid press pump connects described selector valve by hydraulic tubing, and hydraulic tubing is provided with charge valve; Selector valve is connected with two actuator ports of experimental liquid pressure motor; The output shaft of experimental liquid pressure motor connects the input shaft of reversing box by test motor output transducer, the output shaft of reversing box connects the input shaft of gearbox.The utility model not only can carry out stepless loading to test pump and motor; And the mechanical energy that test motor exports can be turned back to the input shaft of experimental liquid press pump, become test power; Energy regenerating mode is simple.
Description
[technical field]
The utility model relates to a kind of oil hydraulic pump, hydraulic motor test stand, especially a kind of test stand being applicable to various oil hydraulic pump, motor power Characteristics Detection and Reliability Check.
[background technique]
Oil hydraulic pump, hydraulic motor test stand (hereinafter referred to as " test stand ") are for carrying out to oil hydraulic pump, oil hydraulic motor the necessaries that testing property, Reliability Check and related law are studied.
The load mode of hydraulic pump test stand has two kinds: the first adopts the mode of relief valve throttling to apply pressure to the hydraulic oil that tested liquid press pump exports, the energy that this mode tested liquid press pump exports all is converted to thermal energy consumption, make test energy consumption very large, all the more so when carrying out the test of large power long time especially.The second is design power consumption recovering device, the energy regenerating exported by tested liquid press pump utilizes, this energy regenerating mode also has two kinds: a kind of is the mechanical energy that tested liquid press pump exports is converted to electric energy reclaim, and this way of recycling equipment is complicated, expensive, Installation and Debugging are difficult; Another kind of energy regenerating mode is directly reclaimed the mechanical energy that tested liquid press pump exports, application number is 201210094856.0, name is called that the Chinese patent of " oil hydraulic pump adaptive power test stand " discloses a kind of test stand adopting the direct way of recycling of mechanical energy, all energy that the tested liquid press pump of this test stand exports all pass through from a throttle valve, energy ezpenditure is also larger, meanwhile, this test stand has loading spatial load forecasting difficulty, the shortcoming of poor work stability.
Current hydraulic motor test stand mainly contains to adopt and directly loads and power consumption recovery loading two type.Application number is CN201410307125.9, name is called that the Chinese patent of " hydraulic motor test stand " discloses an oil hydraulic motor testing program, and the program adopts and directly loads, high-power large with energy consumption during life test.Adopt the hydraulic motor test stand of power consumption way of recycling according to the difference of energy regenerating mode, can be divided into and change electric energy way of recycling and the direct way of recycling of mechanical energy two kinds into.Electric energy way of recycling technical sophistication, expensive, reuse efficiency is not high; Application number is CN201210437532.2, name is called the oil hydraulic motor testing program that the Chinese patent of " oil hydraulic motor pilot system " discloses a mechanical energy and directly reclaims, and program element is many, and complex structure, energy-saving effect is not ideal.
Meanwhile, above-mentioned various load mode has and applies the undesirable shortcoming of dynamic load effect.
Application number is CN201310394825.1, name is called that the Chinese patent of " reliability test method of a kind of axial piston pump and motor and device " discloses the oil hydraulic pump and motor test rig scheme that a mechanical energy directly reclaims, tested oil hydraulic pump and tested oil hydraulic motor are connected to the two ends of a two output shaft motor by the program, make motor reel except the torque will born motor itself and produce, also to bear the torque that system institute regenerative power produces, cause motor stressed unreasonable; In addition, this device can only be used for testing rotational velocity, the coadapted oil hydraulic pump oil hydraulic motor of sense of rotation, all can not test with an oil hydraulic pump to two of oil hydraulic motor sense of rotation.
[model utility content]
The purpose of this utility model be to provide a kind of can the oil hydraulic pump of recovery test power consumption and motor test rig, its structure is simple, loading performance good, can carry out test loading mechanical energy and directly reclaim, to overcome the technical problem existing for above-mentioned prior art.
To achieve these goals, the utility model adopts following technological scheme:
Can the oil hydraulic pump of recovery test power consumption and a motor test rig, comprise prime mover, power composite box, test pump input pickup, hydraulic oil container, experimental liquid press pump, charge valve, selector valve, experimental liquid pressure motor, test motor output transducer, reversing box and gearbox; Power composite box has two input shaft ends and an output shaft end; First input shaft end of power composite box is connected with the output shaft of prime mover, and the second input shaft end is connected with the output shaft of gearbox, and the output shaft end of power composite box is connected by the input shaft of test pump input pickup with experimental liquid press pump; The output oil port of experimental liquid press pump connects described selector valve by hydraulic tubing, and hydraulic tubing is provided with charge valve; A mouth, the B mouth of selector valve are connected with two actuator ports of experimental liquid pressure motor; The output shaft of experimental liquid pressure motor connects the input shaft of reversing box by test motor output transducer, the output shaft of reversing box connects the input shaft of gearbox.
Preferably, described hydraulic tubing is also provided with safety valve and the empty one-way valve of anti-suction.
Preferably, described prime mover is speed-adjustable motor, and described power composite box is gear driven type power composite box, and described charge valve is electromagnetic proportion relief valve, and described selector valve is solenoid directional control valve.
Preferably, hydraulic tubing is furnished with between the output oil port of experimental liquid press pump and the P mouth of selector valve; A mouth, the B mouth of selector valve are connected with two actuator ports of experimental liquid pressure motor, and the T mouth of selector valve connects hydraulic oil container by oil purifier.
Preferably, test pump input pickup and test motor output transducer are used for rotating speed and the torque of detector place axle.
Preferably, described prime mover is ac variable frequency speed regulation motor, speed control by alternate magnetic motor or DC speed-regulating motor, described power composite box is chain driven type power composite box, described charge valve is throttle valve, described selector valve is hand-operated direction valve, described experimental liquid press pump is two-way variable displacement pump, and experimental liquid pressure motor is double-action variable displacement motor; Two hydraulic fluid ports of described two-way variable displacement pump connect two alternation hydraulic fluid ports of rectifying valve block by pipeline, the oil outlet of rectifying valve block is connected by pipeline to be connected with selector valve P mouth, and the filler opening of rectifying valve block is connected by oil purifier and hydraulic oil container; Described rectifying valve block is the bridge rectifier valve block of four rectification one-way valve compositions.
Compare with existing test stand, the beneficial effects of the utility model are: the utility model a kind of can recovery test power consumption oil hydraulic pump and motor test rig not only can carry out stepless loading to test pump and motor; And the mechanical energy that test motor exports can be turned back to the input shaft of experimental liquid press pump, become test power.Energy regenerating mode is simple; Little by the hydraulic fluid flow rate of charge valve, the quality of charge valve spool and stressed can be reduced, realize good dynamic load characteristic, realize high frequency dynamic load.
[accompanying drawing explanation]
Fig. 1 is the schematic diagram of the utility model the 1st embodiment;
Fig. 2 is the schematic diagram of the utility model the 2nd embodiment.
In figure: 1 be prime mover, 2 be power composite box, 3 be test pump input pickup, 4 be hydraulic oil container, 5 be oil purifier, 6 be experimental liquid press pump, 7 be charge valve, 8 be safety valve, 9 be the empty one-way valve of anti-suction, 10 be selector valve, 11 be experimental liquid pressure motor, 12 be reversing box, 14 be gearbox, 15 be rectifying valve block for test motor output transducer, 13.
[embodiment]
1st embodiment
Refer to shown in Fig. 1, the utility model a kind of can recovery test power consumption oil hydraulic pump and motor test rig, comprise prime mover (being frequency control motor in Fig. 1) 1, power composite box (being gear transmission in Fig. 1) 2, test pump input pickup 3, hydraulic oil container 4, oil purifier 5, experimental liquid press pump 6, charge valve (being electromagnetic proportion relief valve in Fig. 1) 7, safety valve 8, the empty one-way valve 9 of anti-suction, selector valve (being solenoid directional control valve in Fig. 1) 10, experimental liquid pressure motor 11, test motor output transducer 12, reversing box 13, gearbox 14 and some pressure gauges, flowmeter.
Power composite box 2 has two input shaft ends and an output shaft end.Its first input shaft end is connected with the output shaft of prime mover 1, and the second input shaft end is connected with the output shaft of gearbox 14, and the output shaft end of power composite box 2 is connected by the input shaft of test pump input pickup 3 with experimental liquid press pump 6.Be furnished with hydraulic tubing between the output oil port of experimental liquid press pump 6 and the P mouth of solenoid directional control valve 10, hydraulic tubing is provided with charge valve 7, safety valve 8, the empty one-way valve 9 of anti-suction.A mouth, the B mouth of solenoid directional control valve 10 are connected with two actuator ports of experimental liquid pressure motor 11, and the T mouth of solenoid directional control valve 10 connects hydraulic oil container 4 by oil purifier 5.The output shaft of experimental liquid pressure motor 11 connects the input shaft of reversing box 13 by test motor output transducer 12, the output shaft of reversing box 13 connects the input shaft of gearbox 14.
On the pipeline of experimental liquid pressure motor 11 oil inlet and outlet, be all provided with pressure gauge and flowmeter; On the pipeline of experimental liquid press pump 6 oil inlet and outlet, be all provided with flowmeter; On the pipeline of P mouth leading to selector valve 10, be provided with pressure gauge; On the pipeline leading to charge valve 7, be provided with flowmeter.
Test pump input pickup 3, test motor output transducer 12 all detect rotating speed and torque two parameters of place axle.
The utility model is a kind of can the oil hydraulic pump of recovery test power consumption and the test method of motor test rig be comprised:
Send signal first to electromagnetic proportion relief valve 7, the cracking pressure of setting electromagnetic proportion relief valve 7, meta put by solenoid directional control valve 10, handling reversing box 13 makes the sense of rotation of all rotating elements adapt, handling gearbox 14 makes experimental liquid press pump 6 complement one another with the rotational velocity of experimental liquid pressure motor 11, and the discharge capacity of experimental liquid press pump 6 is preset in the state of 0 discharge capacity.Start prime mover 1, prime mover 1 is transmission of power to power composite box 2, and the output shaft of power composite box 2 passes through test pump input pickup 3 by transmission of power to experimental liquid press pump 6.Meanwhile, a part of power drives gearbox 14, reversing box 13, test motor output transducer 12 and experimental liquid pressure motor 11 to rotate by the second input shaft end of power composite box 2.Because meta put by solenoid directional control valve 10, experimental liquid press pump 6 is 0 discharge capacity, and system is in unloaded state.
Solenoid directional control valve 10 is handled according to the sense of rotation of experimental liquid pressure motor 11, the discharge capacity of slow increase experimental liquid press pump 6 makes hydraulic oil enter experimental liquid pressure motor 11 by the sense of rotation of experimental liquid pressure motor 11 reality, at this moment under the pressure effect of hydraulic oil, experimental liquid pressure motor 11 will drive the second input shaft end of power composite box 2 by test motor output transducer 12, reversing box 13, gearbox 14, drive experimental liquid press pump 6 to rotate from power composite box 2 output shaft end again, realize power consumption and reclaim.
Due to various energy loss, the driving power of experimental liquid pressure motor 11 is less than the power driven required for experimental liquid press pump 6 certainly, the power lacked by prime mover 1 by the gears compensate in power composite box 2.
The discharge capacity of Adjustment Tests oil hydraulic pump 6, in the oil extraction pressure stability of proof test oil hydraulic pump 6 under the condition of the setting pressure of electromagnetic proportion relief valve 7, the hydraulic fluid flow rate realizing discharging from electromagnetic proportion relief valve 7 is few as much as possible, can improve energy-saving effect like this.
If due to a variety of causes in debug process, the hydraulic fluid flow rate that experimental liquid press pump 6 is discharged as occurred is less than the situation that experimental liquid pressure motor 11 rotates required hydraulic fluid flow rate, hydraulic oil in hydraulic pipe line from experimental liquid press pump 6 oil outlet to experimental liquid pressure motor 11 filler opening there will be negative pressure, namely occur emptying phenomenon, the empty one-way valve 9 of at this moment anti-suction is connected and is prevented from inhaling sky to replenisher force feed in hydraulic pipe line.
Change the setting pressure of electromagnetic proportion relief valve 7, just can change test mass; The rotating speed changing prime mover 1 just can change the test speed of equipment.
According to the data of test pump input pickup 3, test motor output transducer 12, pressure gauge and flowmeter in Fig. 1, the related performance indicators obtaining experimental liquid press pump 6, experimental liquid pressure motor 11 just can be analyzed.
If want the performance of another sense of rotation of testing experiment oil hydraulic motor 11, as long as change the direction of reversing box 13 output shaft before test job starts, test is carried out middle another electromagnet to solenoid directional control valve 10 and is energized.
The Performance comparision that 1st embodiment is used for testing hydraulic motor is convenient.
2nd embodiment
Refer to shown in Fig. 2, compare with the 1st embodiment, prime mover 1 of the 2nd embodiment is DC speed-regulating motor, experimental liquid press pump 6 is two-way variable displacement pump, charge valve 7 is throttle valve, selector valve 10 is hand-operated direction valve, experimental liquid pressure motor 11 is double-action variable displacement motor, power composite box 2 is chain transmission; Add rectifying valve block 15, rectifying valve block 15 is bridge rectifier valve block, is made up of four rectification one-way valves.Two hydraulic fluid ports of experimental liquid press pump 6 connect the alternation hydraulic fluid port of rectifying valve block 15 by pipeline, the oil outlet of rectifying valve block 15 is connected by pipeline to be connected with the P mouth of selector valve 10, and the filler opening of rectifying valve block 15 is connected by oil purifier 5 and hydraulic oil container 4.
Under the condition that the discharge capacity of experimental liquid pressure motor 11 is determined, the discharge capacity of Moderator Variable experimental liquid press pump 6, under can making charge valve 7 work in steady state; Under the condition that the discharge capacity of experimental liquid press pump 6 is determined, the discharge capacity of Moderator Variable experimental liquid pressure motor 11, under also can making charge valve 7 work in steady state; Owing to being provided with rectifying valve block 15, can test under the condition of experimental liquid press pump 6 oil inlet and outlet upset.
Other test principle is identical with the 1st embodiment.
The adjustment range of the 2nd embodiment is larger than the 1st embodiment, can test various oil hydraulic pump, oil hydraulic motor.
Claims (6)
1. one kind can recovery test power consumption oil hydraulic pump and motor test rig, it is characterized in that, comprise prime mover (1), power composite box (2), test pump input pickup (3), hydraulic oil container (4), experimental liquid press pump (6), charge valve (7), selector valve (10), experimental liquid pressure motor (11), test motor output transducer (12), reversing box (13) and gearbox (14); Power composite box (2) has two input shaft ends and an output shaft end; First input shaft end of power composite box (2) is connected with the output shaft of prime mover (1), second input shaft end is connected with the output shaft of gearbox (14), and the output shaft end of power composite box (2) is connected by the input shaft of test pump input pickup (3) with experimental liquid press pump (6); The output oil port of experimental liquid press pump (6) connects described selector valve (10) by hydraulic tubing, and hydraulic tubing is provided with charge valve (7); A mouth, the B mouth of selector valve (10) are connected with two actuator ports of experimental liquid pressure motor (11); The output shaft of experimental liquid pressure motor (11) connects the input shaft of reversing box (13) by test motor output transducer (12), the output shaft of reversing box (13) connects the input shaft of gearbox (14).
2. according to claim 1 a kind of can recovery test power consumption oil hydraulic pump and motor test rig, it is characterized in that, described hydraulic tubing is also provided with safety valve (8) and the empty one-way valve of anti-suction (9).
3. according to claim 1 a kind of can recovery test power consumption oil hydraulic pump and motor test rig, it is characterized in that, described prime mover (1) is speed-adjustable motor, described power composite box (2) is gear driven type power composite box, described charge valve (7) is electromagnetic proportion relief valve, and described selector valve (10) is solenoid directional control valve.
4. according to claim 1 a kind of can recovery test power consumption oil hydraulic pump and motor test rig, it is characterized in that, between the output oil port of experimental liquid press pump (6) and the P mouth of selector valve (10), be furnished with hydraulic tubing; A mouth, the B mouth of selector valve (10) are connected with two actuator ports of experimental liquid pressure motor (11), and the T mouth of selector valve (10) connects hydraulic oil container (4) by oil purifier (5).
5. according to claim 1 a kind of can recovery test power consumption oil hydraulic pump and motor test rig, it is characterized in that, test pump input pickup (3) and test motor output transducer (12) are for detecting rotating speed and the torque of its place axle.
6. according to claim 3 a kind of can recovery test power consumption oil hydraulic pump and motor test rig, it is characterized in that, described prime mover (1) is ac variable frequency speed regulation motor, speed control by alternate magnetic motor or DC speed-regulating motor, described power composite box (2) is chain driven type power composite box, described charge valve (7) is throttle valve, described selector valve (10) is hand-operated direction valve, described experimental liquid press pump (6) is two-way variable displacement pump, and experimental liquid pressure motor (11) is double-action variable displacement motor; Two hydraulic fluid ports of described two-way variable displacement pump connect two alternation hydraulic fluid ports of rectifying valve block (15) by pipeline, the oil outlet of rectifying valve block (15) is connected by pipeline to be connected with the P mouth of selector valve (10), and the filler opening of rectifying valve block (15) is connected by oil purifier (5) and hydraulic oil container (4); Described rectifying valve block (15) is the bridge rectifier valve block of four rectification one-way valve compositions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820118.4U CN204403006U (en) | 2014-12-19 | 2014-12-19 | A kind of can recovery test power consumption oil hydraulic pump and motor test rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820118.4U CN204403006U (en) | 2014-12-19 | 2014-12-19 | A kind of can recovery test power consumption oil hydraulic pump and motor test rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403006U true CN204403006U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420820118.4U Expired - Fee Related CN204403006U (en) | 2014-12-19 | 2014-12-19 | A kind of can recovery test power consumption oil hydraulic pump and motor test rig |
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|---|---|
| CN (1) | CN204403006U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514761A (en) * | 2014-12-19 | 2015-04-15 | 长安大学 | Hydraulic pump and motor test bed capable of recycling test energy consumption |
| CN105465056A (en) * | 2016-01-06 | 2016-04-06 | 张旭蓝 | Hydraulic system for recycling elastic potential energy generated by deformation of test pieces |
| CN112228415A (en) * | 2020-10-21 | 2021-01-15 | 天津市航昊机电设备有限公司 | Control device of hydraulic motor |
-
2014
- 2014-12-19 CN CN201420820118.4U patent/CN204403006U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514761A (en) * | 2014-12-19 | 2015-04-15 | 长安大学 | Hydraulic pump and motor test bed capable of recycling test energy consumption |
| CN104514761B (en) * | 2014-12-19 | 2017-03-15 | 长安大学 | A kind of hydraulic pump that can be consumed energy with recovery test and motor test rig |
| CN105465056A (en) * | 2016-01-06 | 2016-04-06 | 张旭蓝 | Hydraulic system for recycling elastic potential energy generated by deformation of test pieces |
| CN112228415A (en) * | 2020-10-21 | 2021-01-15 | 天津市航昊机电设备有限公司 | Control device of hydraulic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20171219 |