Spiral swing hydraulic cylinder testing device

Abstract

The utility model belongs to the technical field of spiral hydraulic cylinder detection, particularly relates to a spiral swing hydraulic cylinder testing device, and aims to solve the problems that the weight of an existing load is inconvenient to adjust and the existing load is inconvenient to install on the surface of a spiral swing hydraulic cylinder shaft, and provides the following scheme: the spiral swing hydraulic cylinder testing device comprises a spiral swing hydraulic cylinder body; the connecting shaft is arranged in the spiral swinging hydraulic cylinder body; the surface of the connecting shaft is sleeved with a concentric-square-shaped fixing frame, a set of clamping assemblies are arranged in the concentric-square-shaped fixing frame, and the clamping assemblies are used for stably fixing the concentric-square-shaped fixing frame to the surface of the connecting shaft. A connecting rod is fixed to the side end of the concentric-square-shaped fixing frame, and the multiple balancing weights are arranged on the surface of the connecting rod in a sleeving mode and used for providing balancing weights for the test of the spiral swing hydraulic cylinder body; the device is simple in structure and convenient to operate, can be widely applied to the field of performance testing of the spiral swing hydraulic cylinder, and has wide market prospects and application value.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral hydraulic cylinder detection, in particular to a spiral swing hydraulic cylinder testing device. Background Art

[0002] The swing hydraulic cylinder is a compact accessory that uses hydraulic pressure to generate very high torque in a very small space. It uses a combined helical gear structure inside, which allows the entire swing hydraulic cylinder to generate high torque in a small space.

[0003] In the prior art, when performing a load test on a spiral swing hydraulic cylinder, a tool of a fixed weight needs to be fixed on the surface of the spiral swing hydraulic cylinder shaft to perform the load test. The weight of the load is not convenient to adjust and is not convenient to install on the surface of the spiral swing hydraulic cylinder shaft. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that the weight of the load is inconvenient to adjust and it is inconvenient to install on the surface of the spiral swing hydraulic cylinder shaft, and to propose a spiral swing hydraulic cylinder test device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A spiral swing hydraulic cylinder test device, comprising a spiral swing hydraulic cylinder body, and further comprising:

[0007] A connecting shaft provided in the spiral swing hydraulic cylinder body;

[0008] The surface of the connecting shaft is provided with a circular fixing frame, and a group of clamping components are provided in the circular fixing frame, and the clamping components are used to stably fix the circular fixing frame to the surface of the connecting shaft;

[0009] Multiple counterweights, a connecting rod is fixed to the side end of the circular fixed frame, and multiple counterweights are sleeved on the surface of the connecting rod to provide counterweight for the test of the spiral swing hydraulic cylinder body, and a retaining ring is fixed on the surface of the connecting rod, and the retaining ring is arranged on the side close to the circular fixed frame;

[0010] A group of positioning components are provided on the surface of the connecting rod, and the positioning components are used to fix the positions of multiple counterweights.

[0011] In one possible design, the clamping assembly includes two clamping plates that slide in a circular fixing frame, and the ends of the two clamping plates that are close to each other are provided with arc grooves, and the two arc grooves match the surface of the connecting shaft. The upper and lower sides of the circular fixing frame are threaded with bolts, and the two bolts are respectively rotated on the ends of the two clamping plates that are away from each other.

[0012] In a possible design, anti-slip pads are provided in both of the arc-shaped grooves.

[0013] In a possible design, the positioning assembly includes a threaded groove formed on the surface of a connecting rod, and the surface of the connecting rod is threadedly connected to an extrusion block for limiting the position of the counterweight.

[0014] In a possible design, the positioning assembly further includes a limiting groove provided in the connecting rod, and the limiting blocks are fixed in the plurality of counterweight blocks, and the plurality of limiting blocks slide in the limiting groove.

[0015] In a possible design, a twist ring is fixed on the surface of the extrusion block.

[0016] In this application, when it is needed, the circular fixing frame is put on the surface of the connecting shaft, the connecting shaft is placed between the two clamping plates, and the two bolts are respectively screwed to rotate. The two bolts drive the two clamping plates to move in the direction of approaching each other, clamping the clamping plates to the surface of the connecting shaft;

[0017] After fixing the circular fixing frame, twist the twist ring to remove the extrusion block, and then insert the counterweight block into the surface of the connecting rod. The number and size of the counterweight blocks can be selected according to the usage requirements at time. At the same time, the limit block inside the counterweight block slides in the limit groove inside the connecting rod, which can effectively prevent the counterweight block from rotating on the surface of the connecting rod during the test. Twisting the extrusion block to position it can effectively prevent the counterweight block from falling off.

[0018] Beneficial effect: In the utility model, the spiral swing hydraulic cylinder test device achieves stable fixation of the circular fixed frame by designing the clamping assembly and the anti-slip pad, effectively preventing the loosening problem during the test;

[0019] In the present invention, the spiral swing hydraulic cylinder test device achieves stable fixation of the counterweight block by designing the positioning assembly and the limit groove. Even if large vibrations occur during the test, the counterweight block will not fall off easily, thereby ensuring the accuracy of the test results.

[0020] In the utility model, the device has a simple structure and is easy to operate, can be widely used in the field of performance testing of spiral swing hydraulic cylinders, and has broad market prospects and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a main perspective view of a spiral swing hydraulic cylinder test device proposed by the utility model;

[0022] Figure 2 This is a partial stereoscopic diagram of a spiral swing hydraulic cylinder test device proposed by the present invention;

[0023] Figure 3 This is a partial exploded view of a spiral swing hydraulic cylinder test device proposed in the utility model.

[0024] In the figure: 1. spiral swing hydraulic cylinder body; 2. connecting shaft; 3. circular fixed frame; 4. clamping plate; 5. bolt; 6. connecting rod; 7. retaining ring; 8. counterweight block; 9. extrusion block; 10. twisting ring; 11. limit groove; 12. limit block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1: Reference Figure 1-Figure 3 A spiral oscillating hydraulic cylinder test device, used in the field of spiral hydraulic cylinder testing technology, includes a spiral oscillating hydraulic cylinder body 1. A connecting shaft 2 is disposed within the spiral oscillating hydraulic cylinder body 1. A circular fixing frame 3 is sleeved on the surface of the connecting shaft 2. A set of clamping components is designed within the circular fixing frame 3 for stably fixing the circular fixing frame 3 to the surface of the connecting shaft 2.

[0027] The clamping assembly's specific structure is as follows: two clamping plates 4 are slidably mounted within a circular fixing frame 3. The adjacent ends of the two clamping plates 4 are each provided with an arcuate groove whose shape and size match the surface of the connecting shaft 2. To secure the clamping plates 4 in place, bolts 5 are threaded onto the top and bottom sides of the circular fixing frame 3. The two bolts 5 are respectively connected to the distal ends of the two clamping plates 4. To secure the circular fixing frame 3, simply rotate the bolts 5 until the arcuate grooves of the clamping plates 4 are in close contact with the surface of the connecting shaft 2.

[0028] In order to further improve the stability of the clamping, anti-slip pads are provided in the two arc-shaped grooves, which can effectively prevent the circular fixing frame 3 from loosening during the test.

[0029] A connecting rod 6 is fixed to the side of the circular fixed frame 3. Multiple counterweights 8 are mounted on the surface of the connecting rod 6 to provide counterweights for testing the spiral swing hydraulic cylinder 1. To prevent the counterweights 8 from sliding on the connecting rod 6, a retaining ring 7 is fixed to the surface of the connecting rod 6, located on the side close to the circular fixed frame 3.

[0030] To secure the multiple counterweights 8, a positioning assembly is designed on the surface of the connecting rod 6. Specifically, the positioning assembly comprises a threaded groove on the surface of the connecting rod 6, which is threadedly connected to an extrusion block 9 that holds the counterweights 8 in place. To secure the position of the counterweights 8, simply rotate the extrusion block 9 until it fits snugly against the surface.

[0031] Example 2: Reference Figure 1-Figure 3 , based on Example 1, an improvement: To further enhance the stability of the counterweight 8, the positioning assembly further includes a limiting slot 11 defined within the connecting rod 6. Each of the counterweights 8 is secured with a limiting block 12, which is slidably connected to the limiting slot 11. This prevents the counterweight 8 from easily falling off, even if significant vibrations occur during the test.

[0032] In order to facilitate the rotation of the extrusion block 9, a twist ring 10 is fixed on the surface of the extrusion block 9. By twisting the twist ring 10, the rotation operation of the extrusion block 9 can be easily achieved.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spiral swing hydraulic cylinder test device, comprising a spiral swing hydraulic cylinder body (1), characterized in that: Also includes: A connecting shaft (2) is provided in the spiral swing hydraulic cylinder body (1); The surface of the connecting shaft (2) is provided with a circular fixing frame (3), and a group of clamping components are provided in the circular fixing frame (3), and the clamping components are used to stably fix the circular fixing frame (3) to the surface of the connecting shaft (2); A plurality of counterweight blocks (8), a connecting rod (6) is fixed to the side end of the circular fixed frame (3), and the plurality of counterweight blocks (8) are sleeved on the surface of the connecting rod (6) to provide counterweight for the test of the spiral swing hydraulic cylinder (1), and a retaining ring (7) is fixed on the surface of the connecting rod (6), and the retaining ring (7) is arranged on a side close to the circular fixed frame (3); A group of positioning components is provided on the surface of the connecting rod (6), and the positioning components are used to fix the positions of a plurality of counterweight blocks (8).

2. A spiral swing hydraulic cylinder testing device according to claim 1, characterized in that: The clamping assembly includes two clamping plates (4) sliding in a circular fixed frame (3), and arc grooves are provided at the ends of the two clamping plates (4) that are close to each other. The two arc grooves match the surface of the connecting shaft (2). Bolts (5) are threadedly connected to the upper and lower sides of the circular fixed frame (3), and the two bolts (5) are respectively rotated on the ends of the two clamping plates (4) that are away from each other.

3. A spiral swing hydraulic cylinder testing device according to claim 2, characterized in that: Anti-slip pads are provided in the two arc-shaped grooves.

4. A spiral swing hydraulic cylinder testing device according to any one of claims 1 to 3, characterized in that: The positioning assembly comprises a threaded groove formed on the surface of a connecting rod (6), and the surface of the connecting rod (6) is threadedly connected to an extrusion block (9) for limiting the position of the counterweight block (8).

5. The spiral swing hydraulic cylinder testing device according to claim 4, characterized in that: The positioning assembly further comprises a limiting groove (11) provided in the connecting rod (6), a limiting block (12) is fixed in each of the plurality of counterweight blocks (8), and the plurality of limiting blocks (12) slide in the limiting groove (11).

6. The spiral swing hydraulic cylinder testing device according to claim 4, characterized in that: A twist ring (10) is fixed on the surface of the extrusion block (9).

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