CN219551865U - Fixing mechanism for multidirectional component force test stand - Google Patents

Abstract

The utility model relates to a fixing mechanism for a multidirectional component force test bed, which comprises a connecting frame, wherein two groups of clamping devices, a connecting device and a fixing device are arranged on the connecting frame, the clamping devices are connected through the connecting device, each clamping device comprises a fixed ring, clamping rods, moving blocks and a rotating disc, the four clamping rods are respectively connected with the four moving blocks, each clamping rod penetrates through the fixed ring in a sliding mode, the rotating disc is rotatably sleeved outside the fixed ring, a first plane thread is arranged on the upper surface of the rotating disc, a second plane thread matched with the first plane thread is arranged on the lower surface of the moving block, and the clamping device is arranged in the utility model, so that the engine body is clamped and fixed conveniently.

Description

Fixing mechanism for multidirectional component force test stand

Technical Field

The utility model relates to the technical field of fixing mechanisms, in particular to a fixing mechanism for a multidirectional component force test stand.

Background

When the aeroengine is produced, the eccentricity of the thrust vector is required to be measured, when the eccentricity of the thrust vector of the engine is measured, a large number of tests are required to be carried out, and the tests are impossible to put in a flight test, and a large amount of manpower and material resources are required to be consumed, so that a test bed is mostly selected to carry out ground tests, when the ground tests are carried out, the engine is required to be mounted on the test bed through a fixing mechanism, and force measuring equipment is arranged above, below and on the side face of the fixing mechanism, and the forces in all directions of the engine are detected through the force measuring equipment. When the existing fixing mechanism is used for fixing the engine, the axis of the engine and the axis of the fixing mechanism may not coincide, so that a certain included angle exists between the thrust direction of the engine and the measuring direction of the force measuring equipment arranged on the fixing mechanism, and the measurement of the thrust vector of the engine is inaccurate; and some fixing mechanisms can realize centering clamping, but are not easy to install outside the engine.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a fixing mechanism for a multidirectional component force test stand, which aims to solve the technical problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multidirectional fixed establishment for component force test bench, includes the link, be equipped with clamping device, connecting device and fixing device on the link, clamping device is provided with two sets of, and through connecting device connects, clamping device includes solid fixed ring, clamping lever, movable block and rotary disk, clamping lever and movable block all are provided with four, and four the clamping lever respectively with four the movable block is connected, the clamping lever slides and runs through solid fixed ring, the rotary disk rotates the cover and establishes outside solid fixed ring, and the upper surface of rotary disk is equipped with first plane screw thread, the lower surface of movable block is provided with the second plane screw thread with first plane screw thread complex, connecting device includes the connecting rod, and the both ends of connecting rod are equipped with first connection dish and second connection dish respectively, first connection dish and second connection dish respectively with two clamping device connects.

Preferably, a fixed disc is arranged at one end, far away from the clamping rod, of the fixed ring, the first connecting disc and the second connecting disc are respectively detachably connected with the fixed discs in the two clamping devices through bolts, and the connecting devices and the clamping devices are convenient to connect.

Further preferably, the fixing device comprises a connecting screw rod, a first nut and a second nut, a threaded hole matched with the connecting screw rod is formed in the rotating disc, an arc-shaped groove matched with the threaded hole is formed in the fixing disc, the first nut and the second nut are sleeved outside the connecting screw rod through threads, the first nut and the second nut are respectively attached to two sides of the fixing disc, and the rotating disc is convenient to fix.

Further preferably, a protective cover is arranged above the fixed ring, and a through groove matched with the moving block is formed in the protective cover, so that the clamping device can be protected conveniently.

It is further preferred that the connecting frame is provided with two, and is respectively connected with the protection cover in the two clamping devices, so that the connecting frame is convenient to install, and the fixing mechanism and the external force measuring equipment are convenient to connect.

Further preferably, the two sides of the moving block are provided with sliding blocks, the fixed ring is provided with a guide seat, and the guide seat is provided with a sliding groove matched with the sliding blocks, so that the moving block is conveniently guided.

It is further preferable that the connecting device is provided with a plurality of groups, and is arranged between the two groups of clamping devices, so that the connection stability is improved, and the oblique force measuring equipment is connected with the connecting device, so that the component force is measured conveniently.

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

1. the clamping device is arranged in the utility model, so that the engine body is convenient to clamp and fix, and in the clamping process, the axis of the engine body and the axis of the fixing ring are collinear, so that the thrust is convenient to detect, and the accuracy of a measurement result is improved;

2. the two clamping devices are respectively sleeved on the engine body at two sides of the engine body, and are connected through the connecting device, so that the engine is convenient to install and fix;

3. the fixing device is arranged in the utility model, after the rotating disc is rotated to drive the clamping rod to clamp and fix the engine body, the position of the rotating disc is conveniently fixed, and the engine body is prevented from falling down due to loosening in the test process.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a fixing mechanism for a multidirectional component force test stand in the utility model;

FIG. 2 is a schematic view of an exploded structure of the clamping device according to the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 2 at another angle in the present utility model;

FIG. 4 is a schematic view of a connecting device according to the present utility model;

fig. 5 is a schematic structural view of a connecting frame in the present utility model.

In the figure: 1. a connecting frame; 2. a fixing ring; 3. a clamping rod; 4. a moving block; 5. a rotating disc; 6. a first planar thread; 7. a second planar thread; 8. a connecting rod; 9. a first connection plate; 10. a second connection pad; 11. a fixed plate; 12. a connecting screw; 13. a first nut; 14. a second nut; 15. a threaded hole; 16. an arc-shaped groove; 17. a protective cover; 18. a through groove; 19. a slide block; 20. a guide seat; 21. and a sliding groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1-5, a fixing mechanism for a multidirectional component force test stand comprises a connecting frame 1, wherein clamping devices, connecting devices and fixing devices are arranged on the connecting frame 1, the two groups of clamping devices are arranged and connected through the connecting devices, each clamping device comprises a fixed ring 2, clamping rods 3, moving blocks 4 and a rotating disc 5, the clamping rods 3 and the moving blocks 4 are respectively provided with four, the four clamping rods 3 are respectively connected with the four moving blocks 4, the clamping rods 3 penetrate through the fixed rings 2 in a sliding manner, the rotating disc 5 is rotationally sleeved outside the fixed rings 2, first plane threads 6 are arranged on the upper surface of the rotating disc 5, second plane threads 7 matched with the first plane threads 6 are arranged on the lower surface of the moving block 4, each connecting device comprises a connecting rod 8, a first connecting disc 9 and a second connecting disc 10 are respectively arranged at two ends of each connecting rod 8, and each first connecting disc 9 and each second connecting disc 10 are respectively connected with the two clamping devices.

Referring to fig. 1-5, a fixing plate 11 is disposed at an end of the fixing ring 2 far from the clamping rod 3, and the first connecting plate 9 and the second connecting plate 10 are detachably connected with the fixing plates 11 in the two clamping devices through bolts. The connecting device is provided with a plurality of groups and is arranged between the two groups of clamping devices. When in use, the connecting rod 8 is placed between the two fixing plates 11, the first connecting plates 9 and the second connecting plates 10 at the two ends of the connecting rod 8 are respectively attached to the two fixing plates 11 and are fixedly connected through bolts, so that the connection and the fixation of the two clamping devices are realized.

Referring to fig. 1-5, the fixing device includes a connecting screw 12, a first nut 13 and a second nut 14, a threaded hole 15 matched with the connecting screw 12 is provided on the rotating disk 5, an arc-shaped slot 16 matched with the threaded hole 15 is provided on the fixing disk 11, the first nut 13 and the second nut 14 are both sleeved outside the connecting screw 12, and the first nut 13 and the second nut 14 are respectively attached to two sides of the fixing disk 11. When the clamping device is used, the clamping device is sleeved outside the engine body, after the clamping device clamps the engine body, the connecting screw rod 12 passes through the arc-shaped groove 16 and passes through the first nut 13 in a threaded manner until being in threaded connection with the threaded hole 15, at the moment, the second nut 14 is sleeved outside the connecting screw rod 12 in a threaded manner until the second nut 14 is attached to the lower surface of the fixed disc 11, at the moment, the first nut 13 is rotated until the first nut 13 is attached to the upper surface of the fixed disc 11, at the moment, the first nut 13 and the second nut 14 are attached to the fixed disc 11, and the connecting screw rod 12 is fixed.

Referring to fig. 1-5, a protective cover 17 is arranged above the fixed ring 2, and a through groove 18 matched with the moving block 4 is arranged on the protective cover 17. The connecting frame 1 is provided with two and is respectively connected with the protective covers 17 in the two clamping devices. Both sides of the moving block 4 are provided with sliding blocks 19, a guide seat 20 is arranged outside the fixed ring 2, and a sliding groove 21 matched with the sliding blocks 19 is arranged on the guide seat 20. When in use, the connecting frame 1 is arranged on the protective cover 17, the connecting frame 1 is connected with external force measuring equipment, the moving block 4 is arranged in the guide seat 20 in a sliding way, and the moving block 4 is arranged in the through groove 18 in a sliding way.

Example 2:

when the engine is used, the two clamping devices are sleeved outside the engine body, the connecting rod 8 is placed between the two fixing plates 11, the first connecting plate 9 and the second connecting plate 10 at two ends of the connecting rod 8 are respectively attached to the two fixing plates 11 and are fixedly connected through bolts, the two clamping devices are fixedly connected, after the engine body is clamped by the clamping devices, the connecting screw rod 12 passes through the arc-shaped groove 16 and passes through the first nut 13 through threads until the connecting screw rod is in threaded connection with the threaded hole 15, the second nut 14 is sleeved outside the connecting screw rod 12 through threads until the second nut 14 is attached to the lower surface of the fixing plate 11, the first nut 13 is rotated until the first nut 13 is attached to the upper surface of the fixing plate 11, the first nut 13 and the second nut 14 are attached to the fixing plate 11, the connecting screw rod 12 is fixedly connected, the engine body is mounted and the connecting frame 1 is mounted on the protecting cover 17, and the connecting frame 1 is connected with external force measuring equipment.

Example 3:

when the clamping device is sleeved outside the engine body and the engine body needs to be clamped and fixed, the rotating disc 5 is rotated at the moment, so that the rotating disc is matched with the second plane threads 7 through the first plane threads 6, the four moving blocks 4 are driven to move inwards simultaneously, the four clamping rods 3 are driven to move inwards simultaneously, the internal engine body is clamped and fixed, and the axis of the engine body and the axis of the fixed ring 2 are collinear.

In all the above mentioned solutions, in which the connection between two components can be chosen according to the actual situation, a welded, bolt-and-nut-fitted connection, a bolt-or-screw connection or other known connection means, which are not described in detail herein, where reference is made to a written fixed connection, the preferred consideration is welding, although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that numerous variations, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a multidirectional component fixed establishment for test bench, includes link (1), its characterized in that: be equipped with clamping device, connecting device and fixing device on link (1), clamping device is provided with two sets of, and passes through connecting device connects, clamping device includes solid fixed ring (2), clamping lever (3), movable block (4) and rotary disk (5), clamping lever (3) and movable block (4) all are provided with four, and four clamping lever (3) respectively with four movable block (4) are connected, clamping lever (3) slip runs through solid fixed ring (2), rotary disk (5) rotate the cover and establish outside solid fixed ring (2), and the upper surface of rotary disk (5) is equipped with first plane screw thread (6), the lower surface of movable block (4) be provided with first plane screw thread (6) complex second plane screw thread (7), connecting device includes connecting rod (8), the both ends of connecting rod (8) are equipped with first connection pad (9) and second connection pad (10) respectively, first connection pad (9) and second (10) are connected with two clamping device respectively.

2. The fixing mechanism for a multi-directional component force test stand according to claim 1, wherein: one end of the fixed ring (2) far away from the clamping rod (3) is provided with a fixed disc (11), and the first connecting disc (9) and the second connecting disc (10) are respectively detachably connected with the fixed discs (11) in the two clamping devices through bolts.

3. The fixing mechanism for a multi-directional component force test stand according to claim 2, wherein: the fixing device comprises a connecting screw (12), a first nut (13) and a second nut (14), threaded holes (15) matched with the connecting screw (12) are formed in the rotating disc (5), arc-shaped grooves (16) matched with the threaded holes (15) are formed in the fixing disc (11), the first nut (13) and the second nut (14) are sleeved outside the connecting screw (12) in a threaded mode, and the first nut (13) and the second nut (14) are respectively attached to two sides of the fixing disc (11).

4. The fixing mechanism for a multi-directional component force test stand according to claim 1, wherein: a protective cover (17) is arranged above the fixed ring (2), and a through groove (18) matched with the moving block (4) is formed in the protective cover (17).

5. The fixing mechanism for a multi-directional component force test stand according to claim 4, wherein: the two connecting frames (1) are respectively connected with the protective covers (17) in the two clamping devices.

6. The fixing mechanism for a multi-directional component force test stand according to claim 1, wherein: both sides of the moving block (4) are provided with sliding blocks (19), a guide seat (20) is arranged outside the fixed ring (2), and a sliding groove (21) matched with the sliding blocks (19) is arranged on the guide seat (20).

7. The fixing mechanism for a multi-directional component force test stand according to claim 2, wherein: the connecting device is provided with a plurality of groups and is arranged between the two groups of clamping devices.