Oil cylinder pressing test bench for fully-mechanized coal mining equipment

Abstract

The utility model provides a fully mechanized coal mining equipment oil cylinder pressing test bench, which relates to the technical field of oil cylinder pressing tests, and comprises a main frame body, a slide block and a fixing assembly, an oil cylinder is arranged between the slide block and the fixing assembly, an oil tank is arranged at the bottom of one side of the main frame body, and a pressing test machine is arranged between the oil tank and the oil cylinder; one end of the oil cylinder is inserted into the arc hole, the other end of the oil cylinder penetrates through the position between the lower clamping plate and the upper clamping plate, the tensioning sleeve on the bolt is unscrewed, so that the upper clamping plate slides downwards to be attached to one end of the oil cylinder, then the tensioning sleeve is tightened to lock the position, and the oil cylinder is limited to the top of the main frame body. When the oil cylinder needs to be taken out from the top of the main frame body, only the tensioning sleeve needs to be unscrewed, and the upper clamping plate is pulled to slide upwards, so that the problems that in the prior art, the oil cylinder is directly installed and fixed through screws, the oil cylinder easily shakes, time and labor are wasted, and practicability is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder pressure testing, in particular to an oil cylinder pressure testing platform for fully mechanized mining equipment. Background Art

[0002] The hydraulic cylinder pressure test bench for comprehensive mining equipment should be able to use hydraulic oil as the medium for pressure test. Different cylinders determine their pressure test pressure according to their rated working pressure, and the cylinder can achieve pressure increase during the extension and contraction tests.

[0003] In order to improve the maintenance quality of comprehensive mining equipment, the oil cylinders of coal mining machines, tunneling machines and other equipment must be pressure tested after maintenance. However, in actual use, the fixing devices are directly installed and fixed by screws, and the oil cylinders are prone to shaking, which greatly increases the installation time, reduces the installation efficiency, and increases the operating time of workers. It is more time-consuming and labor-intensive, and has poor practicality. Therefore, the utility model proposes a comprehensive mining equipment oil cylinder pressure test bench to solve the above problems. Utility Model Content

[0004] In view of the above problems, the utility model proposes a comprehensive mining equipment oil cylinder pressure test bench to solve the problem that the oil cylinder is easily shaken and is time-consuming, labor-intensive and of poor practicality in the prior art because the oil cylinder is directly installed and fixed by screws.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical scheme: a comprehensive mining equipment cylinder pressure test bench, including a main frame, a slider and a fixed component, the two ends of the main frame are respectively provided with a slider and a fixed component, an oil cylinder is installed between the slider and the fixed component, an oil tank is installed at the bottom of one side of the main frame, and a pressure testing mechanism is provided between the oil tank and the oil cylinder.

[0006] A further improvement is that the fixing assembly includes a lower clamping plate and an upper clamping plate, the upper clamping plate is attached to one side of the lower clamping plate, the two sides of the lower clamping plate are symmetrically fixed with bolts, the two sides of the upper clamping plate are symmetrically provided with strip grooves, one end of the strip groove passes through the interior of the strip groove and is threadedly connected with a tensioning sleeve.

[0007] A further improvement is that: a V-shaped groove is provided on one side of the clamping plate adjacent to the upper clamping plate, pulleys are symmetrically rotatably connected on both sides of the V-shaped groove, and a rubber sleeve is sleeved on the outer side of the pulley.

[0008] A further improvement is that a bidirectional screw is fixedly installed on the top of the main frame, the bottom ends of the lower clamping plate and the slider are fixedly connected with extension blocks, the lower clamping plate and the slider are slidably connected to the inner side of the bidirectional screw through the extension block, and a driving mechanism is provided on the top of the main frame.

[0009] Further improvements are: the driving mechanism includes a bidirectional screw and a motor, the top of the main frame is rotatably connected to the bidirectional screw, the two ends of the bidirectional screw respectively pass through the interior of the two extension blocks and are threadedly connected thereto, a motor is installed on one side of the main frame, and the output end of the motor is fixedly connected to one end of the bidirectional screw.

[0010] A further improvement is that an oil pump is installed on one side of the main frame, an inlet is provided on the outside of the oil cylinder, the output end of the oil pump is connected to the inlet through an oil inlet pipe, and the input end of the oil pump is connected to the inside of the oil tank through an oil delivery pipe.

[0011] A further improvement is that: an outlet is provided at the bottom of the oil cylinder, the outlet is communicated with the inside of the oil tank through an oil return pipe, a pressure relief valve is provided on the outside of the oil cylinder, and a branch pipe is provided on the oil delivery pipe.

[0012] The beneficial effects of the utility model are as follows: an arc hole is provided inside the sliding block, one end of the oil cylinder is inserted into the arc hole, the other end of the oil cylinder passes through between the lower clamping plate and the upper clamping plate, the tensioning sleeve on the bolt is loosened, so that the upper clamping plate slides down and fits together with one end of the oil cylinder, and then the tensioning sleeve is tightened and locked in position to limit the oil cylinder to the top of the main frame. When the oil cylinder needs to be taken out from the top of the main frame, it is only necessary to loosen the tensioning sleeve and pull the upper clamping plate to slide upward, so as to solve the problem in the prior art that the oil cylinder is easily shaken when it is directly installed and fixed by screws, and it is time-consuming, labor-intensive and has poor practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 It is a top view of the utility model;

[0015] Figure 3 It is a side view of the utility model;

[0016] Figure 4 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0017] Among them: 1. Main frame; 2. Slider; 3. Fixed assembly; 4. Oil cylinder; 5. Lower clamp; 6. Upper clamp; 7. Strip groove; 8. Bolt; 9. Pulley; 10. Bidirectional screw rod; 11. Slide rail; 12. Motor; 13. Oil pump; 14. Oil inlet pipe; 15. Inlet port; 16. Outlet port; 17. Pressure relief valve; 18. Oil return pipe; 19. Oil tank; 20. Oil pipeline; 21. Branch pipe; 22. Oil filling port. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a comprehensive mining equipment cylinder pressure test bench, including a main frame 1, a slider 2 and a fixed component 3, wherein the two ends of the main frame 1 are respectively provided with a slider 2 and a fixed component 3, a cylinder 4 is installed between the slider 2 and the fixed component 3, an oil tank 19 is installed at the bottom of one side of the main frame 1, and a pressure test mechanism is provided between the oil tank 19 and the oil cylinder 4, the oil cylinder 4 is fixed to the top of the main frame 1 by the cooperation of the slider 2 and the fixed component 3, and the hydraulic oil in the oil tank 19 is transported into the inside of the oil cylinder 4 through the pressure test mechanism, so that the oil cylinder 4 starts to perform telescopic movement, which is used to test whether the oil cylinder 4 can operate normally.

[0020] The fixing assembly 3 includes a lower clamping plate 5 and an upper clamping plate 6, and the upper clamping plate 6 is attached to one side of the lower clamping plate 5. The two sides of the lower clamping plate 5 are symmetrically fixed with bolts 8. The two sides of the upper clamping plate 6 are symmetrically provided with strip grooves 7. One end of the strip groove 7 passes through the interior of the strip groove 7 and is threadedly connected with a tensioning sleeve. An arc hole is provided inside the slider 2, and one end of the cylinder 4 is inserted into the interior of the arc hole. The other end of the cylinder 4 passes between the lower clamping plate 5 and the upper clamping plate 6. The tensioning sleeve on the bolt 8 is loosened, so that the upper clamping plate 6 slides down and fits together with one end of the cylinder 4. The tensioning sleeve is then tightened to lock the position to limit the cylinder 4 to the top of the main frame 1. When the cylinder 4 needs to be removed from the top of the main frame 1, it only needs to loosen the tensioning sleeve and pull the upper clamping plate 6 to slide upward.

[0021] A V-shaped groove is provided on one side adjacent to the lower clamping plate 5 and the upper clamping plate 6, and pulleys 9 are symmetrically rotatably connected on both sides of the V-shaped groove. A rubber sleeve is sleeved on the outer side of the pulley 9. The V-shaped groove can make the lower clamping plate 5 and the upper clamping plate 6 fit more closely with one end of the cylinder 4, and the rubber sleeve plays a protective role between the pulley 9 and the cylinder 4 to avoid scratches on the surface of the cylinder 4 during loading and unloading.

[0022] A bidirectional screw rod 10 is fixedly installed on the top of the main frame body 1, and the bottom ends of the lower clamping plate 5 and the slider 2 are fixedly connected with extension blocks. The lower clamping plate 5 and the slider 2 are slidably connected to the inner side of the bidirectional screw rod 10 through the extension block, and a driving mechanism is provided on the top of the main frame body 1.

[0023] The driving mechanism includes a bidirectional screw rod 10 and a motor 12. The top of the main frame 1 is rotatably connected to the bidirectional screw rod 10. The two ends of the bidirectional screw rod 10 respectively pass through the interior of two extension blocks and are threadedly connected thereto. A motor 12 is installed on one side of the main frame 1. The output end of the motor 12 is fixedly connected to one end of the bidirectional screw rod 10. The motor 12 can drive the bidirectional screw rod 10 to rotate at the top of the main frame 1. The two ends of the bidirectional screw rod 10 are respectively threadedly matched with the lower clamping plate 5 and the extension block at the bottom end of the slider 2, and the slide rail 11 limits the moving trajectory of the lower clamping plate 5 and the slider 2. Therefore, the bidirectional screw rod 10 can drive the lower clamping plate 5 and the slider 2 to move in opposite directions while rotating, so as to adjust their spacing according to the length of the cylinder 4.

[0024] An oil pump 13 is installed on one side of the main frame 1, and an inlet port 15 is provided on the outer side of the oil cylinder 4. The output end of the oil pump 13 is connected to the inlet port 15 through an oil inlet pipe 14, and the input end of the oil pump 13 is connected to the inside of the oil tank 19 through an oil delivery pipe 20.

[0025] An outlet port 16 is provided at the bottom of the oil cylinder 4, and the outlet port 16 is connected to the interior of the oil tank 19 through an oil return pipe 18. A pressure relief valve 17 is provided on the outer side of the oil cylinder 4, and a branch pipe 21 is provided on the oil delivery pipe 20. The oil pump 13 cooperates with the oil inlet pipe 14 to deliver the hydraulic oil in the oil tank 19 into the interior of the oil cylinder 4 through the oil delivery pipe 20, so that the oil cylinder 4 starts to perform telescopic movement, which is used to test whether the oil cylinder 4 can operate normally. After the test is completed, the valve on the oil delivery pipe 20 is closed, and the valves on the branch pipe 21 and the oil return pipe 18 are opened. The oil pump 13 continues to deliver pressure to the interior of the oil cylinder 4 through the oil inlet pipe 14, and the oil cylinder 4 delivers the hydraulic oil back to the interior of the oil tank 19 through the oil return pipe 18. The oil tank 19 is replenished with hydraulic oil through the oil filling port 22. When testing is needed again, the valves on the branch pipe 21 and the oil return pipe 18 are closed, and the valve on the oil delivery pipe 20 is opened.

[0026] The comprehensive mining equipment cylinder pressure test bench has an arc hole inside the slider 2, one end of the cylinder 4 is inserted into the arc hole, and the other end of the cylinder 4 passes through the lower clamp plate 5 and the upper clamp plate 6, and the tensioning sleeve on the bolt 8 is loosened, so that the upper clamp plate 6 slides down and fits together with one end of the cylinder 4, and then the tensioning sleeve is tightened and locked in position to restrict the cylinder 4 to the top of the main frame 1. When the cylinder 4 needs to be removed from the top of the main frame 1, it only needs to loosen the tensioning sleeve and pull the upper clamp plate 6 to slide upward.

[0027] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fully mechanized mining equipment oil cylinder pressure test bench, comprising a main frame (1), a slide block (2) and a fixing assembly (3), characterized in that: The two ends of the main frame (1) are respectively provided with a slide block (2) and a fixed assembly (3); an oil cylinder (4) is installed between the slide block (2) and the fixed assembly (3); an oil tank (19) is installed at the bottom of one side of the main frame (1); and a pressure testing mechanism is provided between the oil tank (19) and the oil cylinder (4); The fixing assembly (3) comprises a lower clamping plate (5) and an upper clamping plate (6), wherein the upper clamping plate (6) is attached to one side of the lower clamping plate (5), and bolts (8) are symmetrically fixedly connected on both sides of the lower clamping plate (5), and strip grooves (7) are symmetrically opened on both sides of the upper clamping plate (6), and one end of the strip groove (7) passes through the interior of the strip groove (7) and is threadedly connected to a tensioning sleeve.

2. A fully mechanized mining equipment oil cylinder pressure test bench according to claim 1, characterized in that: A V-shaped groove is provided on one side of the lower clamping plate (5) adjacent to the upper clamping plate (6), and pulleys (9) are symmetrically rotatably connected on both sides of the V-shaped groove, and a rubber sleeve is sleeved on the outer side of the pulley (9).

3. The oil cylinder pressure test bench for fully mechanized mining equipment according to claim 1 is characterized by: A bidirectional screw rod (10) is fixedly mounted on the top of the main frame (1); the bottom ends of the lower clamping plate (5) and the slider (2) are fixedly connected with extension blocks; the lower clamping plate (5) and the slider (2) are slidably connected to the inner side of the bidirectional screw rod (10) via the extension block; and a driving mechanism is provided on the top of the main frame (1).

4. The oil cylinder pressure test bench for fully mechanized mining equipment according to claim 3 is characterized by: The driving mechanism comprises a bidirectional screw rod (10) and a motor (12); the top of the main frame (1) is rotatably connected to the bidirectional screw rod (10); the two ends of the bidirectional screw rod (10) respectively pass through the interior of two extension blocks and are threadedly connected thereto; a motor (12) is installed on one side of the main frame (1); the output end of the motor (12) is fixedly connected to one end of the bidirectional screw rod (10).

5. The oil cylinder pressure test bench for fully mechanized mining equipment according to claim 1 is characterized by: An oil pump (13) is installed on one side of the main frame (1), an inlet (15) is provided on the outer side of the oil cylinder (4), the output end of the oil pump (13) is connected to the inlet (15) via an oil inlet pipe (14), and the input end of the oil pump (13) is connected to the inside of the oil tank (19) via an oil delivery pipe (20).

6. The oil cylinder pressure test bench for fully mechanized mining equipment according to claim 5 is characterized by: The bottom of the oil cylinder (4) is provided with an outlet (16), and the outlet (16) is communicated with the interior of an oil tank (19) through an oil return pipe (18). A pressure relief valve (17) is provided on the outside of the oil cylinder (4), and a branch pipe (21) is provided on the oil delivery pipe (20).

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