Stand column detection fixing device for hydraulic support

Abstract

The utility model discloses a stand column detection fixing device for a hydraulic support, and belongs to the field of hydraulic support detection. The stand column detection fixing device for the hydraulic support comprises an outer frame, a transmission plate provided with a first clamping plate and a second clamping plate is arranged on one side of the outer frame, and a motor is arranged on one side of the transmission plate. According to the utility model, the problem that the structure obtained when the hydraulic support stand column test bed is vertically placed in equipment for testing is relatively one-sided is solved, and the first clamping piece and the second clamping piece are matched through rotation of the first threaded rod and the second threaded rod and clamp the four corners of the stand column; the angle of the stand column can be adjusted through driving of the motor, and in the detection process, the connecting plate is adjusted to enable the contact block to be attached to the stand column with the adjusted angle, so that the stand column is fixed in an inclined state, and subsequent detection is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic support testing, specifically a column testing and fixing device for hydraulic supports. Background Technology

[0002] The hydraulic support column testing and fixing device is a specialized device for testing and fixing hydraulic support columns to ensure their stability and reliability in underground operations. This device comprehensively tests the column's load-bearing capacity, sealing performance, and telescopic movement by simulating actual working conditions to verify whether it meets safety standards. Using this device can detect potential defects in the column in advance, avoid safety accidents caused by failure, extend the service life of the support, and ensure efficient and safe production in coal mines.

[0003] Chinese patent CN220751839U discloses a hydraulic support column test bench, including a side baffle, a slide rail fixedly connected to the middle of the side baffle, a pressure plate slidably connected to the side wall of the side baffle, a limit plate rotatably connected to the bottom of the positioning plate, and a pressing plate fixedly connected to the top of the positioning plate between the limit plates. The clamping effect of the limit plates increases the fixing effect of the hydraulic support column, reducing the displacement of the pressure point caused by the deviation of the hydraulic support column itself during pressure testing, which would affect the test results.

[0004] During the testing process of the aforementioned patented hydraulic support column test bench, the column can only be placed vertically inside the equipment for testing. However, in actual use, the column will be in an inclined state for a long time and bear weight in the inclined state. Therefore, the structure obtained by testing with the column placed vertically inside the equipment is relatively one-sided. Utility Model Content

[0005] The purpose of this utility model is to provide a column detection and fixing device for hydraulic supports. The first clamping plate and the second clamping plate are adapted to each other by the rotation of the first threaded rod and the second threaded rod to clamp the four corner positions of the column. The angle of the column can be adjusted by the drive of the motor. During the detection process, the connecting plate is adjusted so that the contact block fits the column after the angle is adjusted, thereby fixing the column in the tilted state, which facilitates subsequent detection and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a column detection and fixing device for a hydraulic support, comprising an outer frame, a transmission plate having a first clamping plate and a second clamping plate on one side of the outer frame, a motor on one side of the transmission plate, a first clamping piece and a second clamping piece being laterally arranged on the other side of the first clamping plate and the second clamping plate facing the transmission plate, the first clamping piece inside the first clamping plate being welded and fixed to the transmission plate, a movable rail being recessed inside the transmission plate facing the second clamping plate, the first clamping piece being embedded in the movable rail through a sliding block and slidably connected to the movable rail, the second clamping piece being slidably connected to the inside of the first clamping plate and the second clamping plate, and a threaded first threaded rod being provided through the second clamping piece.

[0007] Preferably, a bracket is provided at the lower end of the motor exterior, and the two ends of the bracket are welded and fixed to the outer frame and the outer wall of the motor, respectively.

[0008] Preferably, a fixing piece is provided on the other side of both the first clamping plate and the second clamping plate, and an installation groove is provided on the other side of the first clamping plate corresponding to the fixing piece. A second threaded rod that is rotatably connected to the fixing piece of the second clamping plate is provided inside the installation groove.

[0009] Preferably, a fixing block is provided on one side of the outer side of the second threaded rod, and the interior of the fixing block is engaged with the external thread of the second threaded rod.

[0010] Preferably, a filling block is rotatably connected to the outside of the fixing block facing the mounting groove, and the outside of the filling block is connected to the internal slot of the mounting groove.

[0011] Preferably, pressure plates with movable cavities are provided at both the upper and lower ends of the outer frame, and the two pressure plates are embedded in the two sides of the inner frame and slidably connected. A pair of connecting plates are arranged horizontally inside the movable cavity.

[0012] Preferably, the upper and lower ends of the movable cavity are laterally distributed with first and second connecting posts of the same diameter, and the connecting plate has a number of through holes evenly distributed longitudinally, the spacing of the through holes being the same as the spacing between the first and second connecting posts.

[0013] Preferably, the connecting plate is provided with a contact block facing the middle of the outer frame, and the contact block is rotatably connected to the connecting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. When the two pressure plates of this utility model move relative to each other toward the column to clamp and test, the detection positions at both ends of the column are adjusted by the motor drive. After adjustment, the connecting plate slides laterally in the movable cavity and simultaneously inserts the first connecting column and the second connecting column. Finally, the nut rotates outside the first connecting column to fix the connecting plate and the fixed position corresponding to the column. When the nut rotates and fixes the first connecting column outside, the length of the connecting plate protruding from the movable cavity is adjusted according to the penetration position of the first connecting column and the second connecting column, so that the contact block at the lower end of the connecting plate can rotate and fit the column after the angle is adjusted. The two pressure plates can fit the two ends of the column after the angle is adjusted, and the column in the tilted state can be fixed and subsequent tests can be carried out.

[0016] 2. In this utility model, the first clamping piece inside the second clamping plate slides outside the movable rail via a sliding block. The rotation of the second clamping plate can adjust the second clamping piece inside the first and second clamping plates to slide laterally. Finally, after the second threaded rod is embedded in the mounting groove, the fixing block rotates outside the second threaded rod until the fixing block is in contact with the fixing piece at the front end of the first clamping plate. The distance between the first and second clamping plates is adjusted, and the distance between the first and second clamping pieces is also adjusted. This adapts to columnar columns of different diameters and can stably clamp the four corners of the columnar column. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0018] Figure 2 This is a cross-sectional view showing the positional relationship of the sliding blocks in this utility model;

[0019] Figure 3 This is a schematic diagram of the first and second clamping pieces of this utility model after expansion;

[0020] Figure 4 This is a schematic diagram of the rotation trajectory of the second threaded rod of this utility model;

[0021] Figure 5 For the present utility model Figure 4 Enlarged view of a portion of region A in the middle;

[0022] Figure 6 This is a front view of the internal structure of the connecting plate of this utility model;

[0023] Figure 7 This is a schematic diagram of the connection structure between the connecting plates of this utility model.

[0024] In the diagram: 1. Outer frame; 2. Pressure plate; 3. Movable cavity; 4. Bracket; 5. Motor; 6. Transmission plate; 7. First clamping plate; 8. Second clamping plate; 9. Hydraulic telescopic rod; 10. Movable rail; 11. Sliding block; 12. First clamping piece; 13. Second clamping piece; 14. First threaded rod; 15. Fixing piece; 16. Second threaded rod; 17. Fixing block; 18. Filling block; 19. First connecting column; 20. Second connecting column; 21. Nut; 22. Contact block; 23. Connecting plate; 24. Mounting groove; 25. Column. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments.

[0026] like Figure 1 As shown, a hydraulic support column detection and fixing device of this embodiment includes an outer frame 1. A transmission plate 6 is provided on one side inside the outer frame 1. A first clamping plate 7 and a second clamping plate 8 are respectively provided at the front and rear ends of the other side of the transmission plate 6. The column 25 to be clamped and detected is adapted and clamped between the first clamping plate 7 and the second clamping plate 8. A motor 5 is provided on one side of the transmission plate 6. A bracket 4 is provided at the lower end of the motor 5. The two ends of the bracket 4 are welded and fixed to the outer frame 1 and the outer wall of the motor 5, respectively. After being supported by the bracket 4, the drive of the motor 5 can drive the column 25 clamped by the first clamping plate 7 and the second clamping plate 8 to rotate around the output shaft of the motor 5, so that the column 25 can adapt to subsequent testing in an inclined state.

[0027] Among them, the first clamping plate 7 and the second clamping plate 8 are respectively provided with a first clamping piece 12 and a second clamping piece 13 on the other side facing the transmission plate 6. The two first clamping pieces 12 and the two second clamping pieces 13 can clamp the four corners of the column 25 and fix the column 25.

[0028] In addition, such as Figure 2 , Figure 3 and Figure 4 As shown, the first clamping piece 12 inside the first clamping plate 7 is welded and fixed to the transmission plate 6. The transmission plate 6 has a recessed movable rail 10 facing the position of the first clamping piece 12 corresponding to the second clamping plate 8. The upper and lower ends of the first clamping piece 12 are respectively embedded in the movable rail 10 through sliding blocks 11 and slidably connected to the interior of the movable rail 10. The lateral position of the second clamping plate 8 can be adjusted by the movable first clamping piece 12, thereby adjusting the distance between the second clamping plate 8 and the first clamping plate 7.

[0029] To further adapt to the diameter of the column 25, the second clamping piece 13 is embedded inside the first clamping plate 7 and the second clamping plate 8 respectively and is slidably connected to the inside of the first clamping plate 7 and the second clamping plate 8. The inside of the second clamping piece 13 is provided with a first threaded rod 14, and the outside of the first threaded rod 14 is threadedly engaged with the through position of the second clamping piece 13. When the first threaded rod 14 is rotated, the position of the second clamping piece 13 inside the first clamping plate 7 and the second clamping plate 8 can be adjusted independently.

[0030] The first clamping plate 7 and the second clamping plate 8 are each provided with a fixing piece 15 on the other side, and the fixing piece 15 is welded and fixed to the first clamping plate 7 and the second clamping plate 8. The first clamping plate 7 is provided with a mounting groove 24 through the other side corresponding to the fixing piece 15. A second threaded rod 16 is provided laterally inside the mounting groove 24, and one end of the second threaded rod 16 is rotatably embedded into the fixing piece 15 on the other side of the second clamping plate 8.

[0031] In addition, a fixing block 17 is provided on one side of the second threaded rod 16, and the inside of the fixing block 17 is threaded with the outside of the second threaded rod 16. The fixing block 17 can be rotated outside the second threaded rod 16 and can move laterally until the fixing block 17 moves laterally to fit the fixing piece 15 at the front end of the first clamping plate 7, so that the first clamping plate 7 and the second clamping plate 8 are locked and fit against the outer wall of the column 25.

[0032] To improve the stability of the fixing block 17 in contact with the front fixing piece 15 of the first clamping plate 7, such as Figure 5 As shown, a filling block 18 is provided on the side of the fixing block 17 facing the mounting groove 24. The filling block 18 is embedded inside the fixing block 17 and rotates with the inside of the fixing block 17. The outside of the filling block 18 is connected to the internal slot of the mounting groove 24. After the fixing block 17 is attached to the fixing piece 15 of the first clamping plate 7, the filling block 18 will fill and embed into the inside of the mounting groove 24.

[0033] In order to make contact and fix the two ends of the tilted column 25, pressure plates 2 are provided at both the upper and lower ends of the inner frame 1. The two pressure plates 2 are embedded in the inner sides of the outer frame 1 and are slidably connected. The pressure plates 2 are embedded in the inner sides of the outer frame 1 and are provided with hydraulic telescopic rods 9 at the middle position of the inner sides of the outer frame 1. The two pressure plates 2 can be moved toward the column 25 by the contraction of the hydraulic telescopic rods 9, which can fix them and assist in subsequent clamping and testing.

[0034] In order to accommodate the two ends of the tilted column 25, the pressure plate 2 is provided with a movable cavity 3 inside, such as... Figure 6 As shown, a pair of connecting plates 23 are arranged laterally inside the movable cavity 3. The connecting plates 23 can slide laterally inside the movable cavity 3 to adapt to the columns 25 with different tilt angles.

[0035] In addition, the upper end of the movable cavity 3 is horizontally evenly distributed with first connecting posts 19, and the lower end of the movable cavity 3 is horizontally evenly distributed with second connecting posts 20. The second connecting posts 20 and the first connecting posts 19 have the same diameter. The interior of the connecting plate 23 is vertically evenly distributed with several through holes. The spacing between the through holes is the same as the spacing between the first connecting posts 19 and the second connecting posts 20. The connecting plate 23 can be rotated to insert the corresponding first connecting posts 19 and the second connecting posts 20, and the corresponding through holes inside the connecting plate 23 can be selected for insertion, thereby adjusting the distance of the connecting plate 23 extending from the position of the movable cavity 3.

[0036] To ensure a tight fit against the outer walls of both ends of the inclined column 25, such as Figure 7 As shown, a contact block 22 is provided on the connecting plate 23 facing the middle of the outer frame 1, and the contact block 22 is rotatably connected to the connecting plate 23. The contact block 22 contacts and adheres tightly to the column 25 as the connecting plate 23 and the pressure plate 2 move, thereby fixing the column 25. The subsequent continuous retraction of the hydraulic telescopic rod 9 allows for testing of the column 25.

[0037] Among them, a nut 21 is provided on one side of the outside of the connecting plate 23, and the nut 21 is engaged with the external thread of the first connecting post 19. After the first connecting post 19 and the second connecting post 20 pass through the through hole inside the connecting plate 23, the nut 21 rotates outside the first connecting post 19 and fits against the connecting plate 23, so as to tightly fit and fix the adjusted connecting plate 23.

[0038] The connecting plate 23, contact block 22, filling block 18, first connecting column 19 and pressure plate 2 are all made of high carbon steel. The high carbon steel can withstand the pressure generated by the subsequent contraction of the hydraulic telescopic rod 9, thus avoiding damage or breakage of the connecting plate 23, contact block 22, filling block 18, first connecting column 19 and pressure plate 2.

[0039] Working principle: After using the device and fixing the two ends of the column 25 and completing subsequent tests, first fix the column 25 between the first clamping plate 7 and the second clamping plate 8. Rotate the first threaded rod 14 to adjust the second clamping piece 13 inside the first clamping plate 7 and the second clamping plate 8 laterally, so that the second clamping piece 13 and the first clamping piece 12 can simultaneously fit against the outer wall of the column 25. The sliding block 11 inside the second clamping plate 8 corresponding to the first clamping piece 12 slides inside the movable rail 10. The second threaded rod 16 rotates around the sliding block 11 and embeds into the mounting groove 24. Rotate the fixing block 17 until the fixing block 17 fits against the fixing piece 15 at the front end of the first clamping plate 7, until the filling block 18 fits against the mounting groove 24, thereby locking the column 25. Start the power. The machine 5 drives the transmission plate 6 to rotate on one side of the bracket 4, adjusts the angle of the transmission plate 6 and the internal clamping column 25, adjusts the lateral position of the internal connecting plate 23 of the pressure plate 2, and the connecting plate 23 rotates to insert into the position of the first connecting column 19 and the second connecting column 20. Adjust the distance of the connecting plate 23 extending from the outside of the pressure plate 2. When the hydraulic telescopic rod 9 retracts and drives the pressure plate 2 to move toward both ends of the column 25, when the contact block 22 contacts the outer wall of the inclined column 25, the rotation between the contact block 22 and the connecting plate 23 can make the contact block 22 rotate and fit the inclined column 25. While clamping the column 25, the two ends of the column 25 can be clamped in an inclined state, thereby completing the fixation and subsequent retraction and testing of the hydraulic telescopic rod 9.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A column detection and fixing device for a hydraulic support, comprising an outer frame (1), characterized in that, The outer frame (1) is provided with a transmission plate (6) having a first clamping plate (7) and a second clamping plate (8) on one side. A motor (5) is provided on one side of the transmission plate (6). A first clamping piece (12) and a second clamping piece (13) are provided laterally on the other side of the transmission plate (6) facing the first clamping plate (7) and the second clamping plate (8). The first clamping piece (12) inside the first clamping plate (7) is welded and fixed to the transmission plate (6). A movable rail (10) is recessed inside the transmission plate (6) facing the second clamping plate (8). The first clamping piece (12) is embedded in the movable rail (10) through a sliding block (11) and is slidably connected to the movable rail (10). The second clamping piece (13) is slidably connected to the inside of the first clamping plate (7) and the second clamping plate (8). A first threaded rod (14) with threaded engagement is provided through the second clamping piece (13).

2. The hydraulic support column detection and fixing device according to claim 1, characterized in that, A bracket (4) is provided at the lower end of the motor (5), and the two ends of the bracket (4) are welded and fixed to the outer frame (1) and the outer wall of the motor (5) respectively.

3. The hydraulic support column detection and fixing device according to claim 1, characterized in that, The first clamping plate (7) and the second clamping plate (8) are each provided with a fixing piece (15) on the other side. The first clamping plate (7) is provided with a mounting groove (24) on the other side corresponding to the fixing piece (15). The mounting groove (24) is provided with a second threaded rod (16) that is rotatably connected to the fixing piece (15) of the second clamping plate (8).

4. The hydraulic support column detection and fixing device according to claim 3, characterized in that, A fixing block (17) is provided on one side of the second threaded rod (16), and the interior of the fixing block (17) is engaged with the external thread of the second threaded rod (16).

5. The hydraulic support column detection and fixing device according to claim 4, characterized in that, The fixing block (17) is rotatably connected to the filling block (18) on the side facing the mounting groove (24), and the outside of the filling block (18) is connected to the internal slot of the mounting groove (24).

6. The hydraulic support column detection and fixing device according to claim 1, characterized in that, The outer frame (1) has pressure plates (2) with movable cavities (3) at both the upper and lower ends. The two pressure plates (2) are embedded in the inner sides of the outer frame (1) and are slidably connected. A pair of connecting plates (23) are arranged horizontally inside the movable cavity (3).

7. The hydraulic support column detection and fixing device according to claim 6, characterized in that, The upper and lower ends of the active cavity (3) are horizontally distributed with a first connecting post (19) and a second connecting post (20) of the same diameter. The connecting plate (23) has a number of through holes evenly distributed longitudinally inside. The spacing between the through holes is the same as the spacing between the first connecting post (19) and the second connecting post (20).

8. The hydraulic support column detection and fixing device according to claim 7, characterized in that, The connecting plate (23) is provided with a contact block (22) facing the middle of the outer frame (1), and the contact block (22) is rotatably connected to the connecting plate (23).

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