CN220018923U

CN220018923U - Servo valve load pressure test equipment

Info

Publication number: CN220018923U
Application number: CN202322774626.5U
Authority: CN
Inventors: 袁雷; 郑惠; 卿意
Original assignee: Suzhou Hydraulic Servo Drive Technology Co ltd
Current assignee: Suzhou Hydraulic Servo Drive Technology Co ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2023-11-14
Anticipated expiration: 2033-10-17

Abstract

The utility model belongs to the technical field of servo valve testing devices, and particularly discloses servo valve load pressure testing equipment, which aims to solve the problems that in the prior art, when the servo valve load pressure testing equipment is used, a tester is required to fix a servo valve on a test bench through a plurality of bolts, and when a new servo valve is replaced, the bolts are required to be removed again, the process of installing the servo valve is complicated and inconvenient for the tester to use. The automatic servo valve comprises a box body, wherein a base is fixedly arranged on the bottom wall of the box body, a placing groove is formed in the upper surface of the base, a servo valve body is arranged in the placing groove, and a positioning assembly for fixing the position of the servo valve body is arranged on the base. According to the servo valve body fixing device, the positions of the servo valve bodies can be fixed through the two top blocks, so that the servo valve bodies can be prevented from shaking during testing, the servo valve bodies can be quickly fixed through the servo valve body fixing device, the process of assembling and disassembling the servo valve bodies is simple and convenient, and the servo valve body fixing device is convenient for testers to use.

Description

Servo valve load pressure test equipment

Technical Field

The utility model relates to the technical field of servo valve testing devices, in particular to servo valve load pressure testing equipment.

Background

The servo valve load pressure test apparatus is an apparatus for performing performance test and load pressure test on a servo valve, and an operator typically sets test parameters such as a pressure range, a pressure change rate, and the like through a control system when performing the servo valve load pressure test. The hydraulic system will then provide a corresponding hydraulic pressure and flow. The load device applies a load to the servo valve to be tested, simulating actual operating conditions. The detection system can monitor parameters such as pressure, flow and the like in the test process in real time and record the parameters for analysis and evaluation. By means of the servo valve load pressure test equipment, performance of the servo valve under different load conditions can be evaluated, wherein the performance comprises response time, pressure control accuracy, leakage condition and the like. This helps to ensure the reliability and stability of the servo valve in the actual operating environment.

When the existing servo valve load pressure test equipment is used, a tester is required to fix the servo valve on the test bench through a plurality of bolts, the bolts are required to be removed again when the new servo valve is replaced, the process of installing the servo valve is complicated, and the use of the tester is inconvenient.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, when servo valve load pressure test equipment is used, a tester is required to fix a servo valve on a test bench through a plurality of bolts, and when a new servo valve is replaced, the bolts are required to be removed again, the process of installing the servo valve is complicated, and the use of the tester is inconvenient.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a servo valve load pressure test equipment, the power distribution box comprises a box body, the diapire fixed mounting of box has the base, the standing groove has been seted up to the upper surface of base, the internally mounted of standing groove has the servo valve body, be equipped with the locating component of fixed servo valve body position on the base, the locating component is including two T type spouts of symmetry set up in the base upper surface, two T type spouts set up in the relative both sides of standing groove, the equal slidable mounting of inner wall of two T type spouts has T type slider, the equal fixed mounting of upper surface of two T type sliders has the kicking block, be equipped with the actuating mechanism who drives T type slider and remove on the base, actuating mechanism is including the symmetry set up two dovetails spouts of base upper surface, the equal slidable mounting of inner wall of two dovetails spouts has the dovetails slide bar, the surface of two dovetails slide bar is close to the fixed mounting of lower surface of dovetails slide bar one end has the guide pillar, guide pillar and the inner wall slidable mounting of guide slot, the position fixing of servo valve body through two kicking blocks can be with servo valve body, the position fixing of servo valve body when avoiding the test, the servo valve body rocks through this device can be convenient for quick-to use by the quick-operation servo valve, the test personnel.

As a further scheme of the utility model, the liquid outlet end of the servo valve body is in threaded connection with an outer hexagonal sealing cover, a water pipe joint is fixedly arranged on the outer surface of one side of the box body close to the outer hexagonal sealing cover, the water pipe joint is arranged at the bottom of the box body and communicated with the inside of the box body, an air cylinder is fixedly arranged on the outer surface of one side of the box body far away from the outer hexagonal sealing cover, a telescopic end of the air cylinder penetrates through the outer surface of the box body and is fixedly provided with a mounting plate, an air inlet pipe is fixedly arranged on the outer surface of one side of the mounting plate, one end of the air inlet pipe, which is close to the servo valve body, penetrates through the outer surface of the mounting plate and is fixedly provided with a conical rubber plug, the other end of the air inlet pipe is fixedly provided with an air pipe joint, the air inlet pipe and the air inlet pipe are communicated with the inside of the servo valve body, and the taper of the outer circumferential surface of the conical rubber plug is matched with the taper of the inner wall of the liquid inlet end of the servo valve body, so that the inside of the servo valve body is in a sealed state and is only communicated with an external air pump.

As a further scheme of the utility model, the included angle between the guide groove and the central line of the dovetail slide bar is 45 degrees, and the guide groove and the guide post can slide relatively through the arrangement of the angle of 45 degrees.

Compared with the prior art, the utility model has the following beneficial effects:

the dovetail sliding rod drives the guide groove to move through the driving mechanism, the guide groove drives the two ejector blocks to move through the guide pillar, the two ejector blocks move close to each other along the T-shaped sliding groove through the T-shaped sliding block, the position of the servo valve body can be fixed through the two ejector blocks, the position of the servo valve body is prevented from shaking during testing, the servo valve body can be quickly fixed through the device, the process of disassembling and assembling the servo valve body is simple and convenient, and the servo valve body is convenient to use by a tester.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a servo valve load pressure test apparatus according to the present utility model;

FIG. 2 is a schematic diagram of the internal structure of a load pressure test device for a servo valve according to the present utility model;

FIG. 3 is a schematic view of a servo valve body of a servo valve load pressure test apparatus according to the present utility model;

FIG. 4 is a schematic diagram of a base of a servo valve load pressure test apparatus according to the present utility model;

fig. 5 is a schematic diagram of a top block of a load pressure test device for a servo valve according to the present utility model.

In the figure: 1. a case; 2. a water pipe joint; 3. a servo valve body; 4. an outer hexagonal sealing cover; 5. a base; 6. a placement groove; 7. dovetail grooves; 8. a T-shaped chute; 9. a T-shaped slider; 10. dovetail slide bar; 11. a guide groove; 12. a mounting plate; 13. a top block; 14. a conical rubber plug; 15. an air inlet pipe; 16. an air pipe joint; 17. a cylinder; 18. and (5) a guide post.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-5, a servo valve load pressure test device comprises a box body 1, a base 5 is fixedly arranged on the bottom wall of the box body 1, a placing groove 6 is formed in the upper surface of the base 5, a servo valve body 3 is arranged in the placing groove 6, a positioning component for fixing the position of the servo valve body 3 is arranged on the base 5, the positioning component comprises two T-shaped sliding grooves 8 symmetrically formed in the upper surface of the base 5, the two T-shaped sliding grooves 8 are arranged on two opposite sides of the placing groove 6, T-shaped sliding blocks 9 are slidably mounted on the inner walls of the two T-shaped sliding grooves 8, a top block 13 is fixedly mounted on the upper surface of the two T-shaped sliding blocks 9, a driving mechanism for driving the T-shaped sliding blocks 9 to move is arranged on the base 5, the driving mechanism comprises two dovetail sliding grooves 7 symmetrically formed in the upper surface of the base 5, dovetail sliding grooves 10 are slidably mounted on the inner walls of the two dovetail sliding grooves 7, one end of each dovetail sliding rod 10 close to a conical rubber plug 14 and are fixedly mounted on the outer surface of a mounting plate 12, guide grooves 11 are formed in the outer surfaces of the two dovetail sliding rods 10, the lower surface of each top block 13 close to one end of the dovetail sliding rod 10 is fixedly mounted on the lower surface of the sliding blocks 18, a guide post 18 is slidably mounted on the inner wall of the guide post 11 and the inner wall of the sliding block 13 is matched with the guide post 13 in the practical valve body, and the length of the sliding plug body can be adjusted conveniently, and the length of a sealing plug 13 can be matched with the guide post 13 in the practical length is matched with the guide post 13.

During the use, drive two forked tail slide bars 10 and be close to servo valve body 3 motion along forked tail spout 7 through mounting panel 12, make forked tail slide bar 10 drive guide slot 11 motion, guide slot 11 passes through guide pillar 18 and drives two kicking blocks 13 motions, two kicking blocks 13 are close to each other along T type spout 8 through T type slider 9 and move, can fix the position of servo valve body 3 through two kicking blocks 13, the position of servo valve body 3 rocks when avoiding the test, fix servo valve body 3 that can be quick through this device, the process of dismouting servo valve body 3 is simple and convenient, the tester of being convenient for uses.

In this embodiment, the liquid outlet end threaded connection of servo valve body 3 has outer hexagonal sealed lid 4, the outer surface fixed mounting of box 1 near outer hexagonal sealed lid 4 one side has water pipe head 2, water pipe head 2 sets up in the bottom of box 1, water pipe head 2 is linked together with the inside of box 1, the outer surface fixed mounting of box 1 far away from outer hexagonal sealed lid 4 one side has cylinder 17, the flexible end of cylinder 17 runs through the surface of box 1 and fixed mounting plate 12, the surface fixed of mounting plate 12 one side has intake pipe 15, the one end that intake pipe 15 is close to servo valve body 3 runs through the surface of mounting plate 12 and fixes toper rubber end cap 14, the other end fixed mounting of intake pipe 15 has air pipe joint 16, intake pipe 15 is linked together with the inside of servo valve body 3, the tapering of toper rubber end cap 14 excircle surface and servo valve body 3 feed liquor end inner wall's tapering phase-match.

Before use, the box body 1 is communicated with an external water pump through the water pipe connector 2 and a hose, and then the air inlet pipe 15 is communicated with the external air pump through the air pipe and the air pipe connector 16; when the servo valve is used, a tester manually connects the outer hexagonal sealing cover 4 to the liquid outlet end of the servo valve body 3 through the outer hexagonal wrench, seals the liquid outlet end of the servo valve body 3, then places the bottom of the servo valve body 3 into the placing groove 6, the tester starts the air cylinder 17, the telescopic end of the air cylinder 17 stretches out and moves, the mounting plate 12 is driven to move close to the servo valve body 3 through the movement of the telescopic end of the air cylinder 17, the mounting plate 12 drives the conical rubber plug 14 to be inserted into the liquid inlet end of the servo valve body 3, and the conical rubber plug 14 abuts against the inner wall of the liquid inlet end of the servo valve body 3, so that the inner part of the servo valve body 3 is in a sealing state and is only communicated with an external air pump.

In this embodiment, the included angle between the guide groove 11 and the central line of the dovetail slide bar 10 is 45 °, and the guide groove 11 and the guide post 18 can slide relatively by setting the included angle of 45 °.

Before the utility model is used, the box body 1 is communicated with an external water pump through the water pipe connector 2 and the hose, and then the air inlet pipe 15 is communicated with an external air pump through the air pipe and the air pipe connector 16; when the servo valve is used, a tester manually connects the outer hexagonal sealing cover 4 to the liquid outlet end of the servo valve body 3 through the outer hexagonal wrench, seals the liquid outlet end of the servo valve body 3, then places the bottom of the servo valve body 3 into the placing groove 6, starts the air cylinder 17, enables the telescopic end of the air cylinder 17 to extend out, drives the mounting plate 12 to move close to the servo valve body 3 through the movement of the telescopic end of the air cylinder 17, enables the mounting plate 12 to drive the conical rubber plug 14 to be inserted into the liquid inlet end of the servo valve body 3, and enables the interior of the servo valve body 3 to be in a sealed state and only communicated with an external air pump through the contact of the conical rubber plug 14 and the inner wall of the liquid inlet end of the servo valve body 3; meanwhile, the mounting plate 12 drives the two dovetail slide bars 10 to move along the dovetail slide grooves 7 close to the servo valve body 3, so that the dovetail slide bars 10 drive the guide grooves 11 to move, the guide grooves 11 drive the two ejector blocks 13 to move through the guide columns 18, the two ejector blocks 13 move along the T-shaped slide grooves 8 close to each other through the T-shaped slide blocks 9, the positions of the servo valve body 3 can be fixed through the two ejector blocks 13, the position of the servo valve body 3 is prevented from shaking during testing, the servo valve body 3 can be quickly fixed through the device, the process of dismounting the servo valve body 3 is simple and convenient, and the use of test staff is facilitated; after the position of the servo valve body 3 is fixed, an external air pump and an external water pump are opened, so that water inside the box body 1 flows through the liquid inlet end and the liquid outlet end of the servo valve body 3, the pressure of the air pump is gradually adjusted according to the load required to be tested, a tester determines whether the servo valve body 3 has air leakage or not through the existence of air bubbles in the water inside the box body 1, data of the recorded pressure value are used for determining the pressure load range of the servo valve body 3, the water inside the box body 1 is discharged through the external water pump after the test is finished, then the air pump is closed, the air cylinder 17 is reversely moved, and the servo valve body 3 is loosened.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a servo valve load pressure test equipment, includes box (1), its characterized in that, diapire fixed mounting of box (1) has base (5), standing groove (6) have been seted up to the upper surface of base (5), the internally mounted of standing groove (6) has servo valve body (3), be equipped with the locating component of fixed servo valve body (3) position on base (5), locating component is including two T type spouts (8) of symmetry set up in base (5) upper surface, two T type spout (8) set up in the relative both sides of standing groove (6), two equal slidable mounting of inner wall of T type spout (8) has T type slider (9), two equal fixed mounting of upper surface of T type slider (9) has kicking block (13), be equipped with the actuating mechanism who drives T type slider (9) and remove on base (5).

2. The servo valve load pressure test device according to claim 1, wherein the liquid outlet end of the servo valve body (3) is in threaded connection with an outer hexagonal sealing cover (4), a water pipe connector (2) is fixedly arranged on the outer surface of one side of the box body (1) close to the outer hexagonal sealing cover (4), the water pipe connector (2) is arranged at the bottom of the box body (1), and the water pipe connector (2) is communicated with the inside of the box body (1).

3. The servo valve load pressure test device according to claim 2, wherein an air cylinder (17) is fixedly arranged on the outer surface of one side, far away from the outer hexagonal sealing cover (4), of the box body (1), a telescopic end of the air cylinder (17) penetrates through the outer surface of the box body (1) and is fixedly provided with a mounting plate (12), and an air inlet pipe (15) is fixedly arranged on the outer surface of one side of the mounting plate (12).

4. A servo valve load pressure test device according to claim 3, wherein one end of the air inlet pipe (15) close to the servo valve body (3) penetrates through the outer surface of the mounting plate (12) and is fixedly provided with a conical rubber plug (14), the other end of the air inlet pipe (15) is fixedly provided with an air pipe joint (16), the air pipe joint (16) and the air inlet pipe (15) are communicated with the inside of the servo valve body (3), and the taper of the outer circumferential surface of the conical rubber plug (14) is matched with the taper of the inner wall of the liquid inlet end of the servo valve body (3).

5. The servo valve load pressure test device according to claim 4, wherein the driving mechanism comprises two dovetail sliding grooves (7) symmetrically formed in the upper surface of the base (5), dovetail sliding rods (10) are slidably mounted on the inner walls of the two dovetail sliding grooves (7), and one end, close to the conical rubber plug (14), of each dovetail sliding rod (10) is fixedly mounted on the outer surface of the mounting plate (12).

6. The servo valve load pressure test device according to claim 5, wherein guide grooves (11) are formed in the outer surfaces of the two dovetail slide bars (10), guide columns (18) are fixedly arranged on the lower surface, close to one end of the dovetail slide bars (10), of the top block (13), and the guide columns (18) are slidably arranged on the inner walls of the guide grooves (11).

7. A servo valve load pressure test apparatus according to claim 6, wherein the guide groove (11) is at an angle of 45 ° to the centre line of the dovetail slide (10).