Hydraulic support jack protection device

Abstract

The utility model discloses a hydraulic support jack protection device, and relates to the technical field of hydraulic supports, in particular to the hydraulic support jack protection device which comprises a base plate, a hydraulic jack is installed on the top of the base plate, and a first protection plate is installed on the top of the hydraulic jack. An adjusting box, a cavity box and a matching block are installed at the bottom of the first protection plate, round rods are rotationally connected to the interiors of the adjusting box and the matching block through bearings, supporting rods, driven gears and positioning cylinders are installed on the outer surfaces of the round rods, and a servo motor is installed on the inner wall of the adjusting box. The hydraulic support jack protection device has the effect of conveniently increasing the supporting area, through cooperation of a driving gear and a driven gear, expansion supporting or contraction folding of a second protection plate is facilitated, the effect of increasing the supporting area is achieved, through cooperation of a positioning block and a positioning cylinder, the adjusted position is conveniently limited, and the use is convenient. And the purpose of improving the practicability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic support technology, specifically a hydraulic support jack protection device. Background Technology

[0002] Hydraulic supports are structures used to control mine pressure in coal mining faces. A hydraulic support is a hydraulic power device that uses liquid pressure to generate supporting force and achieves automatic relocation for roof support and management. It is an indispensable supporting equipment for fully mechanized coal mining. During the use of hydraulic supports, they are generally located below the coal seam. During mining, dust or rocks often contaminate or damage the jacks, reducing the service life of the hydraulic support jacks. A device is proposed to solve this problem.

[0003] Existing hydraulic support jack protection devices mostly have a fixed support area, which makes it inconvenient to increase the support area and has poor practicality. In addition, existing hydraulic support jack protection devices have poor support stability. The invention of a hydraulic support jack protection device solves the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a hydraulic support jack protection device, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: A hydraulic support jack protection device includes a base plate, a hydraulic jack mounted on the top of the base plate, a first protective plate mounted on the top of the hydraulic jack, an adjustment box, a cavity box, and a mating block mounted on the bottom of the first protective plate, and a round rod rotatably connected to the inside of the adjustment box and the mating block via bearings. A support rod, a driven gear, and a positioning cylinder are mounted on the outer surface of the round rod, respectively. A servo motor is mounted on the inner wall of the adjustment box, and a drive gear with the same center as the output shaft of the servo motor is mounted on the output end of the servo motor. A first electric push rod is mounted on the inner top wall of the adjustment box, and a positioning block is mounted on the movable end of the first electric push rod. A second protective plate is mounted on the end of the support rod away from the round rod, and a fixing block is mounted on the bottom of the second protective plate. A second electric push rod is mounted inside the cavity box, and an adjustment plate is mounted on the movable end of the second electric push rod. A locking block is mounted on the side of the adjustment plate near the second electric push rod, and a T-shaped slider is mounted on the side of the locking block.

[0008] Optionally, the driving gear meshes with the driven gear through teeth, and both the driving gear and the driven gear are located inside the regulating box.

[0009] Optionally, the end of the positioning block furthest from the first electric push rod is inserted into the interior of the positioning cylinder. There are several positioning cylinders, and the included angle between the axes of two adjacent positioning cylinders is degrees.

[0010] Optionally, the side of the first protective plate abuts against the side of the second protective plate, and the highest points of the first and second protective plates are on the same horizontal plane.

[0011] Optionally, the cavity box has a T-shaped groove with the front-back direction as the depth direction and the left-right direction as the length direction. The end of the T-shaped slider is located inside the T-shaped groove, and the T-shaped slider can slide along the length direction of the T-shaped groove.

[0012] Optionally, a slot with a depth direction in the left-right direction is provided on one side of the fixing block, and the end of the block away from the adjustment plate is inserted into the slot.

[0013] Optionally, the length and width of the first protective plate are both greater than the length and width of the second protective plate, and the thickness of the first protective plate is the same as the thickness of the second protective plate.

[0014] This utility model provides a hydraulic support jack protection device, which has the following beneficial effects:

[0015] 1. This hydraulic support jack protection device, through the arrangement of a first protective plate, adjusting box, cavity box, mating block, round rod, support rod, driven gear, positioning cylinder, servo motor, driving gear, first electric push rod, and positioning block, enables the hydraulic support jack protection device to easily increase the support area. Through the cooperation of the driving gear and driven gear, the second protective plate can be easily expanded or contracted and folded, thereby increasing the support area. Through the cooperation of the positioning block and positioning cylinder, the adjusted position can be easily restricted, thus improving practicality.

[0016] 2. The hydraulic support jack protection device, through the arrangement of the second protective plate, fixing block, second electric push rod, adjusting plate, locking block and T-shaped slider, enables the hydraulic support jack protection device to improve the stability of the support. Through the cooperation of the locking block and fixing block, the stability of the second protective plate support is improved, thereby achieving the purpose of improving practicality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a side view sectional diagram of the present invention.

[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a structural schematic diagram of the present invention in frontal cross-section;

[0021] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0022] Figure 6 This is a structural schematic diagram of the present invention viewed from below in cross-section;

[0023] Figure 7 This utility model Figure 6 Enlarged structural diagram at point C.

[0024] In the diagram: 1. Base plate; 2. Hydraulic jack; 3. First protective plate; 4. Adjustment box; 5. Cavity box; 6. Mating block; 7. Round rod; 8. Support rod; 9. Driven gear; 10. Positioning cylinder; 11. Servo motor; 12. Drive gear; 13. First electric push rod; 14. Positioning block; 15. Second protective plate; 16. Fixing block; 17. Second electric push rod; 18. Adjustment plate; 19. Locking block; 20. T-shaped slider. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1 to 6This utility model provides a technical solution: a hydraulic support jack protection device, including a base plate 1, a hydraulic jack 2 installed on the top of the base plate 1, a first protective plate 3 installed on the top of the hydraulic jack 2, the side of the first protective plate 3 abutting against the side of a second protective plate 15, the highest positions of the first protective plate 3 and the second protective plate 15 being at the same horizontal plane, the length and width of the first protective plate 3 being greater than the length and width of the second protective plate 15, the thickness of the first protective plate 3 being the same as the thickness of the second protective plate 15, an adjusting box 4, a cavity box 5, and a mating block 6 respectively installed at the bottom of the first protective plate 3, the cavity box 5 having a T-shaped groove with the front-back direction as the depth direction and the left-right direction as the length direction, the end of the T-shaped slider 20 being located inside the T-shaped groove, the T-shaped slider 20 being able to slide along the T-shaped groove. The adjustment box 4 and the mating block 6 are rotatably connected by a round rod 7 through bearings. The outer surface of the round rod 7 is respectively equipped with a support rod 8, a driven gear 9, and a positioning cylinder 10. The inner wall of the adjustment box 4 is equipped with a servo motor 11. The output end of the servo motor 11 is equipped with a drive gear 12 with the same center as the output end of the servo motor 11. The drive gear 12 meshes with the driven gear 9 through its teeth. The positions of the drive gear 12 and the driven gear 9 are both located inside the adjustment box 4. The inner top wall of the adjustment box 4 is equipped with a first electric push rod 13. The movable end of the first electric push rod 13 is equipped with a positioning block 14. The end of the positioning block 14 away from the first electric push rod 13 is inserted into the inside of the positioning cylinder 10. There are several positioning cylinders 10. The included angle between the centers of two adjacent positioning cylinders 10 is 90 degrees.

[0028] In use, when the support area is increased, the movable end of the first electric push rod 13 retracts, causing the positioning block 14 to leave the positioning cylinder 10. The movable end of the second electric push rod 17 drives the adjusting plate 18, the locking block 19, and the T-shaped slider 20 to move, causing the locking block 19 to leave the slot and the T-shaped slider 20 to slide along the length of the T-shaped groove. Then, the servo motor 11 drives the drive gear 12 to rotate. The drive gear 12 meshes with the driven gear 9, causing the driven gear 9 to drive the round rod 7, the positioning cylinder 10, the support rod 8, and the second protective plate 15 to rotate 90 degrees. At this time, the other positioning cylinder 10 is aligned with the positioning block 14, and the movable end of the first electric push rod 13 extends, allowing the end of the positioning block 14 to be inserted into the interior of the positioning cylinder 10. This facilitates limiting the adjusted position of the second protective plate 15, making it easier to increase the support area. Conversely, it facilitates the retraction and folding of the second protective plate 15, improving practicality.

[0029] Example 2

[0030] Please see Figures 1 to 7The present invention provides a technical solution: a hydraulic support jack protection device, wherein a second protective plate 15 is installed at the end of the support rod 8 away from the round rod 7, a fixing block 16 is installed at the bottom of the second protective plate 15, a slot with the left and right direction as the depth direction is opened on one side of the fixing block 16, and a locking block 19 is inserted into the slot at the end away from the adjusting plate 18. A second electric push rod 17 is installed inside the cavity box 5, an adjusting plate 18 is installed at the movable end of the second electric push rod 17, a locking block 19 is installed on the side of the adjusting plate 18 near the second electric push rod 17, and a T-shaped slider 20 is installed on one side of the locking block 19.

[0031] In use, when the second protective plate 15 and the first protective plate 3 are on the same plane, the slot on the fixing block 16 is aligned with the locking block 19, and the movable end of the second electric push rod 17 extends out, causing the adjusting plate 18 to drive the locking block 19 and the T-shaped slider 20 to move, so that the T-shaped slider 20 slides along the length of the T-shaped groove, and the end of the locking block 19 is inserted into the inside of the slot, which plays the role of supporting and restricting the second protective plate 15, improving the stability of the second protective plate 15 support, and improving practicality.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic support jack protection device comprising a base plate, characterised in that: The top of the base plate is provided with a hydraulic jack, the top of the hydraulic jack is provided with a first protective plate, the bottom of the first protective plate is respectively provided with an adjusting box, a cavity box and a matching block, the interiors of the adjusting box and the matching block are both rotationally connected with a round rod through a bearing, the outer surface of the round rod is respectively provided with a supporting rod, a driven gear and a positioning cylinder, the inner wall of the adjusting box is provided with a servo motor, the output end of the servo motor is provided with a driving gear with the same center as the shaft center of the output end of the servo motor, the inner top wall of the adjusting box is provided with a first electric push rod, the movable end of the first electric push rod is provided with a positioning block, the end of the supporting rod away from the round rod is provided with a second protective plate, the bottom of the second protective plate is provided with a fixing block, the interior of the cavity box is provided with a second electric push rod, the movable end of the second electric push rod is provided with an adjusting plate, the side of the adjusting plate close to the second electric push rod is provided with a clamping block, and the side of the clamping block is provided with a T-shaped sliding block.

2. The hydraulic support jack protection device according to claim 1, characterized in that: The driving gear is meshed with the driven gear through the teeth, and the positions of the driving gear and the driven gear are both located in the interior of the adjusting box.

3. The hydraulic support jack protection device according to claim 1, characterized in that: The end of the positioning block away from the first electric push rod is inserted into the interior of the positioning cylinder, the number of the positioning cylinders is several, and the included angle between the shaft centers of the adjacent two positioning cylinders is 60 degrees.

4. The hydraulic support jack protection device according to claim 1, characterized in that: The side of the first protective plate abuts against the side of the second protective plate, and the highest positions of the first protective plate and the second protective plate are located in the same horizontal plane.

5. The hydraulic support jack protection device according to claim 1, characterized in that: The interior of the cavity box is provided with a T-shaped sliding groove with the front-rear direction as the depth direction and the left-right direction as the length direction, the end of the T-shaped sliding block is located in the interior of the T-shaped sliding groove, and the T-shaped sliding block can slide along the length direction of the T-shaped sliding groove.

6. The hydraulic support jack protection device according to claim 1, characterized in that: The side of the fixing block is provided with a clamping groove with the left-right direction as the depth direction, and the end of the clamping block away from the adjusting plate is inserted into the interior of the clamping groove.

7. The hydraulic support jack protection device according to claim 1, characterized in that: The length and the width of the first protective plate are both greater than the length and the width of the second protective plate, and the thickness of the first protective plate is the same as the thickness of the second protective plate.

Images