Hydraulic support testing device

By introducing avoidance channels and dust collecting mechanisms into the hydraulic support test device, the problem of testing and maintenance difficulties in dusty environments is solved, and the effective capture and cleaning of dust is achieved, maintenance costs are reduced, testers are protected, and the health of testers is improved. The reliability and safety of the test results are achieved.

CN119124602APending Publication Date: 2024-12-13SHENHUA SHENDONG COAL GRP +2
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Patent Information

Application Number
CN202411531840.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

The existing hydraulic bracket testing devices have difficulties in testing and maintenance in dusty environments. Dust accumulation leads to reduced equipment sensitivity, increased maintenance costs, and poses a potential threat to the health of testers.

Method used

A hydraulic bracket testing device is designed, including a base, a test mechanism, a limiting mechanism and a dust collection mechanism. The base has an avoidance channel. The test mechanism is arranged on the base to form a test space. The limiting mechanism provides guidance and limiting functions to collect dust. The mechanism is detachably arranged to capture dust, reduce maintenance costs and protect tester health.

Benefits of technology

Through the design of the avoidance channel and dust collection mechanism, the effective capture and cleaning of dust during the test process is achieved, maintenance costs are reduced, the health of testers is protected, the reliability and safety of test results are ensured, and the bracket being tested is simplified. Remove the process, improving work efficiency and safety.

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Abstract

The invention provides a hydraulic support testing device, which comprises a base, a testing mechanism, a limiting mechanism and a plurality of dust collecting mechanisms, and is characterized in that the base is provided with an avoiding channel, and the avoiding channel is used for avoiding a tested support; the testing mechanism is arranged on the base and comprises a testing table, the testing table is movably arranged above the avoiding channel to form a testing space, and the tested support is placed in the testing space so that the testing table can test the tested support; the limiting mechanism is arranged on the base, and at least one part of the limiting mechanism extends in the direction perpendicular to the base so that the test board can move. The dust collecting mechanism is detachably arranged on the side, close to the base, of the limiting mechanism. The problem that in the prior art, a hydraulic support is difficult to test and maintain is solved.
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Description

Technical Field

[0001] The invention relates to the technical field of coal mine support devices, and in particular to a hydraulic support testing device. Background Art

[0002] The hydraulic support is a structure used to control the mine pressure of the coal mining face. The mine pressure of the coal mining face acts on the hydraulic support in the form of external force. In the mechanical system of the interaction between the hydraulic support and the coal mining face, if the combined force of the supporting parts of the hydraulic support and the combined force of the external load acting on the hydraulic support by the roof are exactly in the same straight line, then the hydraulic support is very adaptable to the surrounding rock of this mining face. However, the hydraulic support test device in the prior art is installed on the hydraulic support for testing. Since its working environment is usually a dusty environment such as a coal mine, if the dust is not controlled, it will accumulate in the internal structure of the hydraulic support, resulting in a decrease in the sensitivity of the equipment, an increase in repair and maintenance costs, and a potential threat to the health of the testers.

[0003] That is to say, the hydraulic supports in the prior art have the problem of being difficult to test and maintain. Summary of the invention

[0004] The main purpose of the present invention is to provide a hydraulic support testing device to solve the problem of difficulty in testing and maintaining the hydraulic support in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a hydraulic support testing device, which includes: a base, the base has an avoidance channel, and the avoidance channel is used to make way for the tested support; a testing mechanism, the testing mechanism is arranged on the base, the testing mechanism includes a testing table, the testing table can be movably arranged above the avoidance channel to form a testing space, and the tested support is placed in the testing space so that the testing table can test the tested support; a limiting mechanism, the limiting mechanism is arranged on the base, and at least a part of the limiting mechanism extends in a direction perpendicular to the base for the test table to move; a plurality of dust collecting mechanisms, and the dust collecting mechanisms are detachably arranged on a side of the limiting mechanism close to the base.

[0006] Furthermore, the limiting mechanism includes a plurality of support columns, the support columns are vertically arranged on the base, the test bench has a plurality of avoidance holes, and the support columns pass through the avoidance holes so that the test bench can be movably arranged relative to the support columns.

[0007] Furthermore, the dust collecting mechanism includes a collecting assembly, which surrounds the outer circumference of the supporting column and fits against one end of the supporting column close to the base.

[0008] Furthermore, the collecting assembly includes two collecting grooves arranged opposite to each other, and the two collecting grooves are relatively buckled on the outer peripheral surface of the supporting column.

[0009] Furthermore, the limiting mechanism also includes at least one auxiliary component, which is movably arranged on the base, and at least a part of the auxiliary component can push the tested bracket in a plane parallel to the base to push the tested bracket out of the test space.

[0010] Furthermore, the auxiliary component includes a pull rod having a pull end and a push end, the pull end is located outside the base, and the push end extends into the tested bracket so that the pull end drives the push end to push the tested bracket out of the test space.

[0011] Furthermore, the inner side wall of the avoidance channel has a limiting groove parallel to the extension direction of the avoidance channel, and the pull rod is movably arranged in the limiting groove.

[0012] Furthermore, the testing mechanism also includes at least one set of relatively arranged lifting components, at least a part of the lifting components is fixed on the base, and at least another part of the lifting components is fixedly connected to the side of the testing platform.

[0013] Furthermore, the lifting assembly is connected to the hydraulic oil pump of the tested support to drive the lifting assembly to drive the test bench to rise and fall in a direction perpendicular to the base.

[0014] Furthermore, the hydraulic support testing device also includes a recording mechanism, which includes: a track assembly, which is arranged on the side of the base away from the avoidance channel; at least one group of shooting assemblies, which are movably arranged on the track assembly, and the shooting assemblies are facing the test space to shoot the tested support.

[0015] By applying the technical solution of the present invention, a hydraulic support testing device includes a base, a testing mechanism, a limiting mechanism and a plurality of dust collecting mechanisms, wherein the base has an avoidance channel, and the avoidance channel is used to make way for the tested support; the testing mechanism is arranged on the base, and the testing mechanism includes a test bench, and the test bench can be movably arranged above the avoidance channel to form a test space, and the tested support is placed in the test space so that the test bench can test the tested support; the limiting mechanism is arranged on the base, and at least a portion of the limiting mechanism extends in a direction perpendicular to the base for movement of the test bench; the dust collecting mechanism is detachably arranged on a side of the limiting mechanism close to the base.

[0016] The base of the present application serves as the basis of the hydraulic support test device, and carries and fixes the test mechanism and the limit mechanism. In order to facilitate the movement and testing of the tested support, an avoidance channel is provided on the base, and the tested support can move along the avoidance channel. Since the test bench is arranged above the avoidance channel to form a semi-enclosed test space, the tested support is directly placed in the avoidance channel during the test process, which can also reduce the pressure on the base. The test bench will apply pressure to the tested support, and can simulate the motion state of the tested support in the work, so as to obtain the key performance indicators such as the strength, stability, sensitivity, etc. of the tested support, and can more comprehensively evaluate the adaptability and durability of the tested support. The limit mechanism is arranged on the base, and at least a part of it extends in a direction perpendicular to the base, providing a guiding and limiting effect for the movement of the test bench, ensuring the stability and precise movement of the test bench during the test process, preventing it from unnecessary displacement or vibration when applying force, and ensuring the safety of the test process and the reliability of the test results. The dust collecting mechanism is detachably arranged on a side of the limiting mechanism close to the base. The dust collecting mechanism captures the dust generated during the test process toward the test space to prevent the dust from polluting the test environment and the tested bracket, thereby reducing the maintenance cost of the tested bracket and protecting the health of the test personnel, making it easier to clean the dust and maintain the dust collecting mechanism itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram showing the cooperation between the hydraulic support testing device and the tested support according to the first embodiment of the present invention;

[0019] Figure 2 Shows Figure 1 Schematic diagram of the structure of the tested bracket;

[0020] Figure 3 Shows Figure 1 A schematic diagram of the structure of the pull rod of the hydraulic support test device;

[0021] Figure 4 Shows Figure 1 A partial structural diagram of the limit mechanism of the hydraulic support test device;

[0022] Figure 5 Shows Figure 1 A schematic diagram of an angle of a dust collecting mechanism of a hydraulic support test device;

[0023] Figure 6 Shows Figure 1 A schematic diagram of the structure of the dust collecting mechanism of the hydraulic support testing device;

[0024] Figure 7 Shows Figure 1 Schematic diagram of the partial structure of the recording mechanism of the hydraulic support testing device.

[0025] The above drawings include the following reference numerals:

[0026] 10. Base; 11. Avoidance channel; 20. Test bracket; 21. Hydraulic oil pump; 22. Four-link rod; 23. Control valve; 24. Cylinder; 30. Test mechanism; 31. Test bench; 32. Hydraulic column; 33. Support plate; 34. Protective beam; 35. Top beam; 40. Limiting mechanism; 41. Support column; 42. Avoidance hole; 43. Pull-out rod; 44. Pull-out end; 45. Push end; 46. Limiting groove; 50. Dust collection mechanism; 51. Collecting groove; 52. Connecting hole; 53. Fixing bolt; 54. Strain gauge; 60. Recording mechanism; 61. Track assembly; 62. Shooting assembly; 63. Slide wheel; 64. Servo motor; 65. CNC table. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0030] In order to solve the problem of difficulty in testing and maintaining hydraulic supports in the prior art, the present invention provides a hydraulic support testing device.

[0031] like Figures 1 to 7As shown, the hydraulic support testing device includes a base 10, a testing mechanism 30, a limiting mechanism 40 and a plurality of dust collecting mechanisms 50. The base 10 has an avoidance channel 11, and the avoidance channel 11 is used to make way for the tested support 20; the testing mechanism 30 is arranged on the base 10, and the testing mechanism 30 includes a test table 31, and the test table 31 is movably arranged above the avoidance channel 11 to form a test space, and the tested support 20 is placed in the test space so that the test table 31 tests the tested support 20; the limiting mechanism 40 is arranged on the base 10, and at least a part of the limiting mechanism 40 extends in a direction perpendicular to the base 10 for the test table 31 to move; the dust collecting mechanism 50 is detachably arranged on a side of the limiting mechanism 40 close to the base 10.

[0032] The base 10 of the present application serves as the basis of the hydraulic support test device, and carries and fixes the test mechanism 30 and the limit mechanism 40. In order to facilitate the movement and testing of the tested support 20, an avoidance channel 11 is provided on the base 10, and the tested support 20 can move along the avoidance channel 11. Since the test bench 31 is arranged above the avoidance channel 11 to form a semi-enclosed test space, the tested support 20 is directly placed in the avoidance channel 11 during the test, which can also reduce the pressure on the base 10. The test bench 31 will apply pressure to the tested support 20, and can simulate the movement state of the tested support 20 during work, so as to obtain the key performance indicators such as the strength, stability, sensitivity, etc. of the tested support 20, and can more comprehensively evaluate the adaptability and durability of the tested support 20. The limiting mechanism 40 is disposed on the base 10, and at least a portion thereof extends in a direction perpendicular to the base 10, providing a guide and limiting function for the movement of the test bench 31, ensuring the stability and precise movement of the test bench 31 during the test, preventing it from unnecessary displacement or vibration when force is applied, and ensuring the safety of the test process and the reliability of the test results. The dust collecting mechanism 50 is detachably disposed on a side of the limiting mechanism 40 close to the base 10, and the dust collecting mechanism 50 captures dust generated during the test toward the test space, preventing dust from contaminating the test environment and the tested bracket 20, reducing the maintenance cost of the tested bracket 20, and also protecting the health of the test personnel, facilitating the cleaning of dust and the maintenance of the dust collecting mechanism 50 itself.

[0033] like Figures 1 to 7As shown, the limiting mechanism 40 includes a plurality of support columns 41, which are vertically arranged on the base 10, and the test bench 31 has a plurality of avoidance holes 42, through which the support columns 41 pass, so that the test bench 31 can be movably arranged relative to the support columns 41. In other words, the plurality of support columns 41 of the limiting mechanism 40 are vertically arranged on the base 10, playing a guiding and limiting role. The avoidance holes 42 of the test bench 31 correspond to the support columns 41 one by one, and the support columns 41 pass through the avoidance holes 42, so that the test bench 31 can move relatively on the support columns 41, avoiding excessive deviation of the test bench 31, ensuring the stability and accuracy of the test bench 31 when applying the test pressure, and ensuring the accuracy and reliability of the test results.

[0034] like Figure 5 to Figure 6 As shown, the dust collecting mechanism 50 includes a collecting component, which surrounds the outer circumference of the support column 41 and fits one end of the support column 41 close to the base 10. That is to say, the collecting component in the dust collecting mechanism 50 surrounds the outer circumference of the support column 41 and tightly surrounds one end of the support column 41 close to the base 10, ensuring that the collecting component can be directly located below the moving track of the test bench 31, effectively capturing the dust generated by the movement of the tested support 20 during the test process, preventing the dust from entering the interior of the hydraulic support test device or other key components, thereby avoiding the interference of dust on the test results and potential damage to the hydraulic support test device and the tested support 20, while protecting the working environment of the tester.

[0035] like Figure 5 to Figure 6 As shown, the collection assembly includes two collection grooves 51 arranged opposite to each other, and the two collection grooves 51 are relatively buckled on the outer peripheral surface of the support column 41. That is to say, the two collection grooves 51 arranged opposite to each other can be relatively buckled on the outer peripheral surface of the support column 41, each collection groove 51 has an opening facing the test bench 31, and the two collection grooves 51 surround the support column 41 to collect dust. Preferably, the buckling heights of the two collection grooves 51 are the same. The shape and size of the collection groove 51 match the outer peripheral surface of the support column 41 so as to fit tightly and prevent dust from escaping from the gaps in the collection grooves 51. In addition, the collection groove 51 is detachably buckled on the support column 41, which is convenient for dust cleaning after testing and maintenance of the collection assembly.

[0036] like Figures 1 to 7 As shown, the limiting mechanism 40 further includes at least one auxiliary component, which is movably arranged on the base 10, and at least a part of the auxiliary component can push the tested bracket 20 in a plane parallel to the base 10, so as to push the tested bracket 20 out of the test space. In other words, the auxiliary component is arranged on the base 10 as a part of the limiting mechanism 40, and helps to safely and smoothly move the tested bracket 20 out of the test space by pushing, which greatly simplifies the removal process of the tested bracket 20 and avoids the inconvenience and potential risks caused by direct manual operation.

[0037] like Figures 1 to 7 As shown, the auxiliary component includes a pull rod 43, the pull rod 43 has a pull end 44 and a push end 45, the pull end 44 is located outside the base 10, and the push end 45 extends into the tested bracket 20, so that the pull end 44 drives the push end 45 to push the tested bracket 20 out of the test space. In other words, the pull end 44 of the pull rod 43 is located outside the base 10, which is convenient for the tester to grasp. The push end 45 extends into the tested bracket 20, and the tested bracket 20 can be pushed out of the test space by driving the push end 45 through the pull end 44. Since the pull rod 43 is arranged on the base 10, when the tester pulls the pull end 44, the push end 45 acts on the bottom of the tested bracket 20, and the tested bracket 20 is smoothly pushed out of the test space, avoiding the direct manual movement of heavy and unstable large components, significantly reducing the physical burden and injury risk of the tester, and improving work efficiency and safety. At the same time, since the movement of the pulling rod 43 is performed in a plane parallel to the base 10, interference with the layout and function of the test bench 31 or other test components is avoided, ensuring the efficient operation of the entire hydraulic support test device.

[0038] like Figures 1 to 7 As shown, the inner side wall of the avoidance channel 11 has a limit groove 46 parallel to the extension direction of the avoidance channel 11, and the pull rod 43 is movably arranged in the limit groove 46. In other words, the limit groove 46 is arranged along the length direction of the avoidance channel 11, and its width and depth match the size of the pull rod 43, so as to ensure that the pull rod 43 can move smoothly in the limit groove 46, and at the same time, the pull rod 43 will not be easily disengaged from the limit groove 46, allowing the pull rod 43 to move smoothly along the predetermined path when pushing the tested bracket 20, and at the same time limiting the movement range of the pull rod 43, ensuring the safety and controllability of the pulling action.

[0039] like Figures 1 to 7 As shown, the test mechanism 30 also includes at least one set of relatively arranged lifting components, at least a part of the lifting components is fixed on the base 10, and at least another part of the lifting components is fixedly connected to the side of the test bench 31. In other words, a part of the lifting components is fixed on the base 10, ensuring that the lifting components have a stable support point, and another part of the lifting components is directly fixed to the side of the test bench 31, so that the lifting components can directly act on the test bench 31, control its lifting movement in a direction perpendicular to the base 10, and ensure the accuracy of the test and the safety of the hydraulic support test device.

[0040] like Figures 1 to 7As shown, the lifting assembly is connected to the hydraulic oil pump 21 of the tested support 20, so as to drive the lifting assembly to drive the test bench 31 to rise and fall in a direction perpendicular to the base 10. In other words, the lifting assembly is connected to the hydraulic oil pump 21 of the tested support 20, so as to drive the lifting assembly to drive the test bench 31 to rise and fall in a vertical direction. By directly connecting to the hydraulic oil pump 21, the lifting assembly can simulate the pressure changes of the tested support 20 in actual work, and apply more real and complex pressure to the test bench 31, so as to more comprehensively test the performance of the tested support 20.

[0041] like Figure 7 As shown, the hydraulic support test device also includes a recording mechanism 60, which includes a track component 61 and at least one group of shooting components 62. The track component 61 is arranged on the side of the base 10 away from the avoidance channel 11; the shooting component 62 is movably arranged on the track component 61, and the shooting component 62 faces the test space to shoot the tested support 20. In other words, the shooting component 62 is movably arranged on the track component 61, and can move along the track. The direction of the shooting component 62 faces the test space, so as to shoot the tested support 20 at multiple angles. Such a design allows the deformation, displacement, stress distribution and other information of the tested support 20 to be recorded in all directions and at multiple angles, providing detailed information for subsequent analysis, evaluation and improvement, and enhancing the reliability of the test data and the transparency of the test process.

[0042] Embodiment 1

[0043] like Figures 1 to 7 As shown, the hydraulic support testing device includes a base 10, a testing mechanism 30, a limiting mechanism 40 and four dust collecting mechanisms 50. The base 10 has an avoidance channel 11, and the avoidance channel 11 is used to make way for the tested support 20; the testing mechanism 30 is arranged on the base 10, and the testing mechanism 30 includes a test table 31, and the test table 31 is movably arranged above the avoidance channel 11 to form a test space, and the tested support 20 is placed in the test space so that the test table 31 tests the tested support 20; the limiting mechanism 40 is arranged on the base 10, and a part of the limiting mechanism 40 extends in a direction perpendicular to the base 10 for the test table 31 to move; the dust collecting mechanism 50 is detachably arranged on a side of the limiting mechanism 40 close to the base 10.

[0044] like Figure 2 As shown, the tested bracket 20 also includes a four-link rod 22, a control valve 23, and an oil cylinder 24. The four-link rod 22 is provided in two groups and is fixedly connected to the inner bottom end of the tested bracket 20. The hydraulic oil pump 21 is fixedly connected to the inner bottom end of the tested bracket 20 by snap-fitting. The control valve 23 is fixed on the hydraulic oil pump 21. The oil cylinder 24 is provided in two groups and is respectively welded to the tested bracket 20.

[0045] like Figure 1As shown, the test mechanism 30 has two lifting components, including a hydraulic column 32 and a support plate 33 fixedly connected to the test bench 31. One end of the hydraulic column 32 is fixedly connected to the base 10, and the other end is fixedly connected to the support plate 33. The lifting and lowering of the hydraulic column 32 drives the support plate 33 and then drives the test bench 31 to lift and lower, effectively ensuring the stable operation of the test mechanism 30. The test mechanism 30 also includes a shielding beam 34 arranged above the test bench 31 and connected to the sides opposite to the two adjacent support columns 41, and a top beam 35 arranged on the top of the support column 41, which effectively enhances the firmness of the test mechanism 30 and facilitates stability during the test process.

[0046] like Figure 5 and Figure 6 As shown, the dust collecting mechanism 50 also includes connecting holes 52, fixing bolts 53, and strain gauges 54. There are four groups of dust collecting mechanisms 50 in total, which are in a positional relationship at four corners. By providing four groups of support columns 41 and dust collecting mechanisms 50 distributed in a positional relationship at four corners, the device as a whole can operate in a stable and fixed manner. On a dust collecting component, one end of a collection slot 51 that is engaged with another collection slot 51 has a connecting end extending away from the support column 41, and a plurality of connecting holes 52 are provided on the connecting end. Correspondingly, a plurality of fixing bolts 53 are provided on the connecting end of the other collection slot 51, and the fixing bolts 53 are arranged one by one with the connecting holes 52, and the fixing bolts 53 extend into the connecting holes 52 to limit the two collection slots 51. It should be noted that the two collection slots 51 are detachably connected through the connecting end, and are not fixed together. The strain gauge 54 is fixedly connected to the collection slot 51.

[0047] like Figure 7 As shown, the track assembly 61 also includes a slide wheel 63, a servo motor 64 and a numerical control table 65. The track assembly 61 includes tracks with different extension directions, which are respectively arranged on the periphery of the base 10 and semi-enclose the base 10 and the testing mechanism 30. Three groups of shooting components 62 are arranged. The slide wheel 63 and the shooting component 62 are detachably connected by snap connection. The slide wheel 63 rolls in the track to realize the position movement of the shooting component 62, which greatly enhances the recording feedback performance of the hydraulic support testing device.

[0048] The tester places the tested bracket 20 horizontally under the test bench 31, and then controls the entire hydraulic bracket test device through the CNC table 65. The hydraulic column 32 drives the test bench 31 to test the deformation, torsion angle, and maximum tensile strength of the tested bracket 20. When the test bench 31 slides up and down through the support column 41, the dust that falls falls into the dust collecting mechanism 50 when it falls vertically. During the test, the shooting component 62 moves to different positions to shoot and observe the tested bracket 20 from different angles. After the test is completed, the tester takes out the tested bracket 20 by holding the pulling end 44 of the pulling rod 43.

[0049] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydraulic support testing device, characterized in that: The hydraulic support testing device comprises: A base (10), wherein the base (10) has an avoidance channel (11), and the avoidance channel (11) is used to make way for the tested bracket (20); A testing mechanism (30), the testing mechanism (30) being arranged on the base (10), the testing mechanism (30) comprising a testing table (31), the testing table (31) being movably arranged above the avoidance passage (11) to form a testing space, the tested support (20) being placed in the testing space so that the testing table (31) can test the tested support (20); a limiting mechanism (40), the limiting mechanism (40) being arranged on the base (10), and at least a portion of the limiting mechanism (40) extending in a direction perpendicular to the base (10) to allow the test bench (31) to move; A plurality of dust collecting mechanisms (50), wherein the dust collecting mechanisms (50) are detachably arranged on a side of the limiting mechanism (40) close to the base (10).

2. The hydraulic support testing device according to claim 1, characterized in that: The limiting mechanism (40) comprises a plurality of support columns (41), the support columns (41) being vertically arranged on the base (10), the test platform (31) having a plurality of avoidance holes (42), the support columns (41) passing through the avoidance holes (42), so that the test platform (31) is movably arranged relative to the support columns (41).

3. The hydraulic support testing device according to claim 2, characterized in that: The dust collecting mechanism (50) comprises a collecting assembly, which surrounds the outer circumference of the support column (41) and fits against one end of the support column (41) close to the base (10).

4. The hydraulic support testing device according to claim 3, characterized in that: The collecting assembly comprises two collecting grooves (51) arranged opposite to each other, and the two collecting grooves (51) are relatively buckled on the outer peripheral surface of the supporting column (41).

5. The hydraulic support testing device according to claim 1, characterized in that: The limiting mechanism (40) further comprises at least one auxiliary component, which is movably arranged on the base (10), and at least a part of the auxiliary component is capable of pushing the tested support (20) in a plane parallel to the base (10) to push the tested support (20) out of the test space.

6. The hydraulic support testing device according to claim 5, characterized in that: The auxiliary component comprises a pulling rod (43), wherein the pulling rod (43) has a pulling end (44) and a pushing end (45), wherein the pulling end (44) is located outside the base (10), and the pushing end (45) extends into the tested bracket (20), so that the pulling end (44) drives the pushing end (45) to push the tested bracket (20) out of the test space.

7. The hydraulic support testing device according to claim 6, characterized in that: The inner side wall of the avoidance channel (11) has a limiting groove (46) parallel to the extension direction of the avoidance channel (11), and the pulling rod (43) is movably arranged in the limiting groove (46).

8. The hydraulic support testing device according to claim 1, characterized in that: The testing mechanism (30) further comprises at least one set of relatively arranged lifting components, at least one portion of the lifting components being fixed on the base (10), and at least another portion of the lifting components being fixedly connected to a side surface of the testing platform (31).

9. The hydraulic support testing device according to claim 8, characterized in that: The lifting component is connected to the hydraulic oil pump (21) of the tested support (20) to drive the lifting component to drive the test bench (31) to rise and fall in a direction perpendicular to the base (10).

10. The hydraulic support testing device according to any one of claims 1 to 9, characterized in that: The hydraulic support testing device further comprises a recording mechanism (60), wherein the recording mechanism (60) comprises: A track assembly (61), the track assembly (61) being arranged around a side of the base (10) away from the avoidance passage (11); At least one group of photographing components (62), wherein the photographing components (62) are movably arranged on the track component (61), and the photographing components (62) face the test space to photograph the tested bracket (20).