CN219890715U - Axial and radial combined force hydraulic loading device - Google Patents

Abstract

The utility model relates to an axial and radial combined force hydraulic loading device, and relates to the technical field of hydraulic loading devices; the test device comprises a workbench and two groups of bearing seats arranged on the workbench, wherein the two bearing seats are used for installing test shafts; an axial driving piece for applying load to the test shaft is arranged at the end part of the test shaft, and an axial sensor for detecting the load value is arranged on the axial driving piece; the workbench is provided with a moving block in a sliding manner, the side wall of the moving block is provided with a radial driving piece for applying radial load to the test shaft, the output end of the radial driving piece is provided with a connecting seat rotationally connected with the test shaft, and a radial sensor for detecting the load value of the test shaft is arranged between the radial driving piece and the connecting seat; the workbench is rotationally provided with a driving screw rod which is in threaded connection with the moving block, and the workbench is provided with a driving motor for driving the driving screw rod to rotate. The utility model has the effect of driving the hydraulic device to test different parts of the transmission.

Description

Axial and radial combined force hydraulic loading device

Technical Field

The utility model relates to the technical field of hydraulic loading devices, in particular to an axial and radial combined force hydraulic loading device.

Background

The hydraulic device consists of a power part, an executing part, a control part, a flow, a direction control valve part, an oil tank, a pipeline and the like; through the devices, the pressure energy and the mechanical energy of the liquid medium in the system are mutually converted, so that the purpose of transmitting motion, force and moment is achieved.

A drive shaft is an important component in a drive train for transmitting power, and typically the drive shaft requires power-mechanical testing prior to use. Typically, the drive shaft is typically torque loaded for testing, but in some special applications, such as the drive shaft of a helicopter gearbox, it is often necessary to apply axial and radial loads to the drive shaft for testing using fixed hydraulics.

With respect to the related art among the above, the inventors found that there are the following problems in this technology: in the process of carrying out a power mechanical test on the transmission shaft, the position of the hydraulic device applying the load to the transmission shaft is fixed and is inconvenient to move, so that the hydraulic device can only test the fixed part of the transmission shaft, the comprehensiveness of test data of the transmission shaft is reduced, and the transmission shaft is required to be improved.

Disclosure of Invention

In order to improve the problem that the hydraulic device can only test the fixed part of the transmission shaft and reduce the comprehensiveness of test data of the transmission shaft, the utility model provides an axial and radial combined force hydraulic loading device.

The utility model provides an axial and radial combined force hydraulic loading device which adopts the following technical scheme:

the axial and radial combined force hydraulic loading device comprises a workbench and two groups of bearing seats arranged on the workbench, wherein the two bearing seats are used for installing a test shaft; the end part of the test shaft is provided with an axial driving piece for applying axial load to the test shaft, and the output end of the axial driving piece is provided with an axial sensor for detecting the load value of the test shaft; the test device comprises a workbench, a test shaft, a radial driving piece, a connecting seat, a radial sensor and a test shaft, wherein the workbench is provided with a moving block in a sliding manner along the length direction of the test shaft, the side wall of the moving block is provided with the radial driving piece for applying radial load to the test shaft, the output end of the radial driving piece is provided with the connecting seat rotationally connected with the test shaft, and the radial sensor for detecting the load value of the test shaft is arranged between the output end of the radial driving piece and the connecting seat; the workbench is rotatably provided with a driving screw rod, the driving screw rod penetrates through the moving block, the driving screw rod is in threaded connection with the moving block, and the workbench is provided with a driving motor for driving the driving screw rod to rotate.

By adopting the technical scheme, the axial driving piece is utilized to apply axial load to the test shaft, and the axial sensor is utilized to detect load data received by the test shaft in real time; radial load is applied to the test shaft by using a radial driving piece, and load data received by the test shaft in real time is detected by using a radial sensor, so that mechanical tests in various axial and radial directions are carried out on the test shaft; when the detection position of the test shaft needs to be adjusted, the driving motor is controlled to drive the driving screw rod to rotate, so that the moving block drives the radial driving piece and the connecting seat to move along the length direction of the test shaft, the relative positions of the connecting seat and the test shaft are adjusted, and the position of the radial driving piece for pressing the test shaft is adjusted, so that the data comprehensiveness of the power mechanical test of the test shaft is improved.

Preferably, the movable block is provided with an anti-falling block towards the side wall of the workbench, and a slideway for the anti-falling block to slide and prop in is arranged on the workbench.

By adopting the technical scheme, the anti-falling block slides in the slideway to guide the moving direction and the moving path of the moving block; in addition, when the radial driving piece applies pressure and load to the test shaft, the moving block receives acting force through the acting force because the acting forces are mutually acting; the anti-drop block is propped against the inner side wall of the slideway, so that the acting force applied by the moving block to the driving screw is reduced, the bending and damage phenomena of the driving screw are reduced, the requirement on the loading capacity of the driving screw is reduced, the cost of the whole device is reduced, and the normal work of the moving block and the radial driving piece is ensured.

Preferably, a plurality of groups of positioning bolts penetrate through the moving block, a plurality of groups of positioning holes for the positioning bolts to penetrate in are formed in the workbench, and all the positioning holes are distributed at intervals along the length direction of the test shaft.

Through adopting above-mentioned technical scheme, after the movable block removes, run through the movable block with positioning bolt and support into the locating hole inside for positioning bolt utilizes the locating hole to be connected with the workstation, has realized the fixed connection of movable block and workstation, fixes the movable block position after removing, has reduced the movable block and has taken place the phenomenon of skew when receiving the effort of radial driving piece, and has reduced the load to driving the lead screw.

Preferably, the lateral wall that the movable block deviates from the test shaft is provided with the auxiliary stay, the tip of auxiliary stay is provided with the backup pad that is used for the butt workstation, be provided with the pressing component that is used for fixed backup pad on the workstation.

By adopting the technical scheme, when the movable block receives the acting force of the radial driving piece, the auxiliary stay bar and the supporting plate can assist in supporting the movable block, and the acting force received by the movable block is transmitted to the workbench by the auxiliary stay bar and the supporting plate, so that the stability of the movable block in the working process of the radial driving piece is further improved; in addition, assist the fixed to the backup pad through pressing the subassembly, further increased the job stabilization nature of movable block.

Preferably, an anti-skid sleeve is arranged on the supporting plate.

By adopting the technical scheme, the anti-slip sleeve increases the anti-slip coefficient of the surface of the supporting plate, so that the pressing component can press the supporting plate more stably; in addition, the antiskid sleeve also reduces the slipping phenomenon between the supporting plate and the workbench.

Preferably, the pressing assembly comprises a fixing frame, a pushing piece and a pressing plate; the pressing plate is located one side of the supporting plate away from the workbench, the fixing frames are arranged at two ends of the pressing plate, the pushing pieces are arranged on each group of fixing frames, and the output ends of the pushing pieces are propped against the pressing plate to be used for driving the pressing plate to be close to or far away from the supporting plate.

By adopting the technical scheme, the output end of the pushing piece is controlled to shrink, so that the pressing plate is quickly far away from the supporting plate, the supporting plate and the pressing plate are separated from each other, and at the moment, the supporting plate can conveniently move along with the moving block; the output end of the control pushing piece stretches out, so that the pressing plate is close to the supporting plate quickly, the supporting plate is stably pressed and fixed on the workbench by the pressing plate, and the position of the supporting plate can be fixed.

Preferably, the pressing plate is provided with an abutting plate towards the side wall of the workbench, and the abutting plate can abut against the side wall of the supporting plate away from the moving block.

Through adopting above-mentioned technical scheme, when pressing board and backup pad offset, the lateral wall that the movable block was kept away from to the butt board and backup pad offsets, has reduced the backup pad and has carried out gliding trend towards deviating from the test axle, and then has improved the job stabilization nature of movable block.

Preferably, the output end of the axial driving piece is rotationally connected with the axial sensor, a fixed plate is arranged on the side wall of the axial driving piece, a plurality of groups of locking bolts penetrate through the fixed plate, a plurality of groups of locking holes for the locking bolts to prop in are formed in the workbench, and all the locking holes are distributed at intervals along the rotation direction of the axial driving piece.

By adopting the technical scheme, the axial driving piece is driven to rotate, and the locking bolt penetrates through the fixed plate and is propped into the corresponding locking hole, so that the position of the axial driving piece can be quickly adjusted; utilize adjusting axial drive spare's position, changed axial drive spare's output and test shaft's contained angle to make axial drive spare apply the load effort of different directions to test shaft, and then be convenient for carry out more comprehensive detection to test shaft.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the driving screw rod is driven to rotate by the driving motor, so that the moving block drives the radial driving piece and the connecting seat to move along the length direction of the test shaft, the relative positions of the connecting seat and the test shaft are adjusted, and the position of the radial driving piece for pressing the test shaft is adjusted, so that the data comprehensiveness of the power mechanical test of the test shaft is improved.

2. Utilize adjusting axial drive spare's position, changed axial drive spare's output and test shaft's contained angle to make axial drive spare apply the load effort of different directions to test shaft, and then be convenient for carry out more comprehensive detection to test shaft.

Drawings

FIG. 1 is a schematic structural view of an axial and radial combined force hydraulic loading device according to an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional view for embodying the connection relationship of the pressing assembly and the support plate.

Reference numerals illustrate:

1. a work table; 10. testing a motor; 11. a bearing seat; 111. a test shaft; 12. an axial drive member; 121. an axial sensor; 13. a slideway; 14. positioning holes; 15. a locking hole; 2. a moving block; 21. a radial drive; 211. a connecting seat; 212. a radial sensor; 22. an anti-falling block; 23. positioning bolts; 24. an auxiliary stay bar; 241. a support plate; 242. an anti-skid sleeve; 3. driving a screw rod; 31. a driving motor; 4. a pressing assembly; 41. a fixing frame; 42. a pushing member; 43. pressing the plate; 431. an abutting plate; 5. a fixing plate; 51. and (5) locking the bolt.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses an axial and radial combined force hydraulic loading device.

Referring to fig. 1 and 2, an axial and radial combined force hydraulic loading device comprises a workbench 1 and two groups of bearing seats 11 mounted on the upper surface of the workbench 1, wherein the two groups of bearing seats 11 are used for mounting a test shaft 111. In this embodiment, the upper surface of the workbench 1 is provided with a test motor 10, and the output end of the test motor 10 is in transmission connection with the test shaft 111 through a coupling, so as to drive the test shaft 111 to rotate on the bearing seat 11. One group of bearing seats 11 is fixedly connected with the workbench 1 through bolts, the other group of bearing seats 11 is in sliding connection with the workbench 1 through a sliding block, and the bearing seats 11 can slide along the length direction of the test shaft 111.

Referring to fig. 1 and 2, an axial driving member 12 is mounted on the upper surface of the table 1 at the end of the test shaft 111, and in this embodiment, the axial driving member 12 may be a hydraulic cylinder. The side wall of the sliding bearing seat 11 is fixedly provided with an axial sensor 121, and the axial sensor 121 is rotatably connected with the output end of the axial driving member 12 through a pin shaft, so that the axial driving member 12 can rotate around the axial sensor 121. In the present embodiment, the axial sensor 121 may be a pressure sensor for detecting the load value applied by the axial driver 12 to the bearing housing 11 and the test shaft 111.

Referring to fig. 1 and 2, a fixing plate 5 is fixedly connected to a side wall of the axial driving member 12 facing the table 1, and a plurality of sets of locking bolts 51 are inserted into the fixing plate 5. A plurality of groups of locking holes 15 are formed on the upper surface of the workbench 1 for the locking bolts 51 to be abutted. In the present embodiment, the locking hole 15 is a threaded hole, so that the locking bolt 51 can be screwed with the table 1 using the locking hole 15. All the locking holes 15 are spaced apart along the rotational direction of the axial driver 12 to facilitate adjustment of the positions of the fixing plate 5 and the axial driver 12 by means of the locking bolts 51.

Referring to fig. 1 and 2, a moving block 2 is slidably connected to the table 1, and an anti-falling block 22 is integrally formed on a side wall of the moving block 2 facing the table 1, and in this embodiment, the anti-falling block 22 may be a T-shaped block. The upper surface of the workbench 1 is provided with a slide way 13 which is mutually matched with the anti-falling block 22, and the length direction of the slide way 13 is mutually parallel to the length direction of the test shaft 111, so that the moving block 2 can move along the length direction of the test shaft 111.

Referring to fig. 1 and 2, a radial driving member 21 is fixedly mounted on a side wall of the moving block 2 facing the test shaft 111, a radial sensor 212 is fixedly connected to an output end of the radial driving member 21, a connecting seat 211 is fixedly mounted on a side wall of the radial sensor 212 facing the test shaft 111, the test shaft 111 is inserted into the connecting seat 211, and the connecting seat 211 is rotatably connected with the test shaft 111 through a bearing. In the present embodiment, the radial driving member 21 may be a hydraulic cylinder, and the radial sensor 212 may be a pressure sensor for detecting load data applied to the connection seat 211 and the test shaft 111 by the radial driving member 21.

Referring to fig. 1 and 2, a driving screw 3 is rotatably connected to the table 1, and the length direction of the driving screw 3 is parallel to the length direction of the slideway 13; the driving screw rod 3 penetrates through the moving block 2, and the driving screw rod 3 is in threaded connection with the moving block 2. The workbench 1 is provided with a driving motor 31, and the output end of the driving motor 31 is in transmission connection with the driving screw rod 3, so that the driving motor 31 can drive the driving screw rod 3 to rotate, and the moving block 2 is driven to slide.

Referring to fig. 1 and 2, a plurality of sets of positioning bolts 23 are inserted into the moving block 2, a plurality of sets of positioning holes 14 are formed in the workbench 1 for the positioning bolts 23 to abut into, and all the positioning holes 14 are distributed at intervals along the length direction of the slide 13. In the present embodiment, the positioning hole 14 is a threaded hole that is adapted to the positioning bolt 23, so that the positioning bolt 23 is screwed with the table 1 through the positioning hole 14.

Referring to fig. 1 and 2, an auxiliary stay bar 24 is rotatably connected to a side wall of the moving block 2 facing away from the test shaft 111, a support plate 241 is fixedly welded to an end of the auxiliary stay bar 24 facing the table 1, and the support plate 241 may abut against an upper surface of the table 1. The support plate 241 is sleeved with an anti-slip sleeve 242, and in this embodiment, the anti-slip sleeve 242 may be made of rubber with soft texture and high anti-slip coefficient.

Referring to fig. 1 and 2, a pressing assembly 4 is mounted on the table 1, and the pressing assembly 4 includes two sets of fixing frames 41, two sets of pushing members 42, and a pressing plate 43. The two groups of fixing frames 41 are welded and fixed on the workbench 1, one group of fixing frames 41 is positioned at one end of the slideway 13 in the length direction, and the other group of fixing frames 41 is positioned at the other end of the slideway 13 in the length direction.

Referring to fig. 1 and 2, in the present embodiment, the pushing members 42 may be hydraulic cylinders, and the pushing members 42 and the fixing frames 41 are disposed in a one-to-one correspondence, and each group of pushing members 42 is fixedly connected to the corresponding fixing frame 41. The pressing plate 43 is fixedly connected to the output ends of the two sets of pushing members 42, so as to drive the pressing plate 43 to approach or separate from the supporting plate 241 by controlling the output ends of the pushing members 42 to stretch and retract.

Referring to fig. 1 and 2, the pressing plate 43 is integrally formed with an abutment plate 431 toward the side wall of the table 1, and the abutment plate 431 is located at the side wall of the pressing plate 43 away from the moving block 2. When the pressing plate 43 gradually approaches the supporting plate 241, the abutting plate 431 can abut against the side wall of the supporting plate 241 far from the moving block 2; finally, the support plate 241 is pressed and fixed to the table 1 by the pressing plate 43, thereby fixing the position of the support plate 241.

The implementation principle of the axial and radial combined force hydraulic loading device provided by the embodiment of the utility model is as follows:

the output end of the axial driving member 12 is controlled to stretch and retract so as to apply an axial load to the test shaft 111, and simultaneously, real-time load data is recorded by the axial sensor 121; the output end of the radial driving element 21 is controlled to expand and contract to apply a radial load to the test shaft 111, and at the same time, real-time load data is recorded by the radial sensor 212.

When the detection position of the test shaft 111 needs to be adjusted, the driving motor 31 is controlled to drive the driving screw rod 3 to rotate, and the rotating driving screw rod 3 and the moving block 2 are in threaded transmission, so that the moving block 2 drives the radial driving piece 21 and the connecting seat 211 to move along the length direction of the test shaft 111, the relative positions of the connecting seat 211 and the test shaft 111 are adjusted, and the position of the radial driving piece 21 for pressing the test shaft 111 is adjusted, so that the data comprehensiveness of the power mechanical test of the test shaft 111 is improved.

The foregoing are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in order, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The axial and radial combined force hydraulic loading device comprises a workbench (1) and two groups of bearing seats (11) arranged on the workbench (1), wherein the two bearing seats (11) are used for installing a test shaft (111); the method is characterized in that: an axial driving piece (12) for applying axial load to the test shaft (111) is arranged at the end part of the test shaft (111), and an axial sensor (121) for detecting the load value of the test shaft (111) is arranged at the output end of the axial driving piece (12); a moving block (2) is arranged on the workbench (1) in a sliding manner along the length direction of the test shaft (111), a radial driving piece (21) for applying radial load to the test shaft (111) is arranged on the side wall of the moving block (2), a connecting seat (211) rotationally connected with the test shaft (111) is arranged at the output end of the radial driving piece (21), and a radial sensor (212) for detecting the load value of the test shaft (111) is arranged between the output end of the radial driving piece (21) and the connecting seat (211); the workbench (1) is rotatably provided with a driving screw rod (3), the driving screw rod (3) penetrates through the moving block (2), the driving screw rod (3) is in threaded connection with the moving block (2), and the workbench (1) is provided with a driving motor (31) for driving the driving screw rod (3) to rotate.

2. An axial and radial combined force hydraulic loading device according to claim 1, wherein: the movable block (2) is provided with an anti-falling block (22) towards the side wall of the workbench (1), and a slideway (13) for the anti-falling block (22) to slide and prop in is arranged on the workbench (1).

3. An axial and radial combined force hydraulic loading device according to claim 1, wherein: a plurality of groups of positioning bolts (23) are arranged on the moving block (2) in a penetrating mode, a plurality of groups of positioning holes (14) for the positioning bolts (23) to prop in are formed in the workbench (1), and all the positioning holes (14) are distributed at intervals along the length direction of the test shaft (111).

4. An axial and radial combined force hydraulic loading device according to claim 1, wherein: the lateral wall that movable block (2) deviates from experimental axle (111) is provided with auxiliary stay (24), the tip of auxiliary stay (24) is provided with backup pad (241) that are used for butt workstation (1), be provided with on workstation (1) and be used for fixed backup pad (241) pressing component (4).

5. An axial and radial combined force hydraulic loading device according to claim 4, wherein: an anti-skid sleeve (242) is arranged on the supporting plate (241).

6. An axial and radial combined force hydraulic loading device according to claim 4, wherein: the pressing assembly (4) comprises a fixed frame (41), a pushing piece (42) and a pressing plate (43); the pressing plate (43) is located on one side, far away from the workbench (1), of the supporting plate (241), the fixing frames (41) are arranged at two ends of the pressing plate (43), the pushing pieces (42) are arranged on each group of fixing frames (41), and the output ends of the pushing pieces (42) are propped against the pressing plate (43) to be used for driving the pressing plate (43) to be close to or far away from the supporting plate (241).

7. An axial and radial combined force hydraulic loading device according to claim 6, wherein: the pressing plate (43) is provided with an abutting plate (431) towards the side wall of the workbench (1), and the abutting plate (431) can abut against the side wall of the supporting plate (241) away from the moving block (2).

8. An axial and radial combined force hydraulic loading device according to claim 1, wherein: the output end of the axial driving piece (12) is rotationally connected with the axial sensor (121), a fixed plate (5) is arranged on the side wall of the axial driving piece (12), a plurality of groups of locking bolts (51) are arranged on the fixed plate (5) in a penetrating mode, a plurality of groups of locking holes (15) which can be used for the locking bolts (51) to prop in are formed in the workbench (1), and all the locking holes (15) are distributed at intervals along the rotation direction of the axial driving piece (12).