Lifting oil cylinder for coal mine underground drill rig

Abstract

The utility model relates to the technical field of coal mine underground drill rigs, and discloses a lifting oil cylinder for a coal mine underground drill rig, which comprises a cylinder body, both sides of the top wall of the cylinder body are provided with slots, the two slots are internally connected with inserting plates in a sliding manner, and both side walls of the cylinder body are provided with pull rods in a penetrating manner; the close ends of the two pull rods penetrate through the inner side wall of the cavity and are fixedly connected with moving plates, the close sides of the two moving plates are fixedly connected with inserting blocks, the other ends of the first springs on the two sides are fixedly connected with moving strips, and the close sides of the two moving strips are fixedly connected with connecting blocks. According to the oil cylinder cleaning device, the cleaning structure can be always attached to the piston rod of the oil cylinder through the first spring, the inserting plate can be pulled out to be replaced by pulling the pull rod, when installation is needed, only the inserting plate needs to be inserted into the inserting groove, and therefore the effects that the oil cylinder cleaning device can be conveniently assembled and disassembled, the cleaning piece is always attached to the piston rod, and the service life is prolonged are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine tunnel drilling machines, in particular to a lifting cylinder for coal mine tunnel drilling machines. Background Art

[0002] Coal mine tunnel drilling rig is a device used for drilling operations in underground coal mines. This equipment is usually designed for mining coal in coal mines or for geological exploration. The lifting cylinder on the coal mine tunnel drilling rig is a key component used to control the up and down movement of the drilling rig body. This cylinder is usually a hydraulic cylinder, which provides power through the hydraulic system to achieve the lifting and lowering movement of the drilling rig.

[0003] After searching, the Chinese patent announcement number: CN219860344U discloses a lifting cylinder for coal mine tunnel drilling rigs, including a hollow cylinder body with an opening at the top, a piston rod and a piston arranged in the inner cavity of the cylinder body and slidingly matched with the inner cavity of the cylinder body, the bottom end of the piston rod extends to the inner cavity of the cylinder body and is connected to the piston, a guide sleeve is installed at the opening of the cylinder body, and also includes an auxiliary mechanism for supporting the piston rod, a cleaning mechanism is provided at the top of the cylinder body for cleaning the piston rod, and the cleaning mechanism is installed on the auxiliary mechanism; the utility model provides a lifting cylinder for coal mine tunnel drilling rigs with a simple structural design, which prevents the displacement of the extended piston rod and can clean the piston rod; however, when the cleaning mechanism in the application cleans the piston rod, after being used for a period of time, the friction of the piston rod against the cleaning mechanism will make the cleaning mechanism unable to effectively fit and clean the piston rod, so the actual service life is relatively low. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a lifting cylinder for a coal mine tunnel drilling rig, aiming to improve the problem in the prior art that the friction of the piston rod on the cleaning mechanism makes it impossible for the cleaning mechanism to effectively fit the piston rod for cleaning.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lifting cylinder for a coal mine tunnel drilling rig, comprising a cylinder body, an assembly and disassembly mechanism is arranged on the upper side of the cylinder body, slots are provided on both sides of the top wall of the cylinder body, and plug plates are slidably connected in the two slots, chambers are provided on both sides of the cylinder body, pull rods are penetrated by the two side walls of the cylinder body, the close ends of the two pull rods penetrate the inner wall of the chamber and are fixedly connected to the movable plate, the upper and lower parts of the two movable plates on the away sides are fixedly connected to one end of a spring, the other ends of multiple springs are fixedly connected to the inner wall of the chamber, the close sides of the two movable plates are fixedly connected to plug blocks, the two plug blocks penetrate into the plug plates, the top walls of the two plug plates are fixedly connected to the mounting plates, the front and rear parts of the two mounting plates on the away sides are fixedly connected to one end of a spring, the other ends of the springs on both sides are fixedly connected to a moving bar, and the close sides of the two moving bars are fixedly connected to a connecting block.

[0006] As a further description of the above technical solution:

[0007] The assembly and disassembly mechanism includes a connecting plate, the two connecting plates are fixedly connected to the close ends of the connecting blocks, the front walls of the two connecting plates are rotatably connected with a bidirectional screw, the rear ends of the two bidirectional screws penetrate the inner front wall of the connecting plate and are rotatably connected to the inner rear wall of the connecting plate, the front and rear end outer circumferences of the two bidirectional screws are threadedly connected with a moving block, and a plurality of the moving blocks are slidably connected with a mounting bar, the inner walls of the moving blocks on the front and rear sides are provided with grooves on the away sides, the moving blocks on the front and rear sides are rotatably connected with a threaded rod 1 on the away sides, the close ends of the threaded rod 1 on the front and rear sides penetrate into the groove and are threadedly connected with an insertion rod, a plurality of the insertion rods penetrate into the mounting bar, and a cleaning brush is fixedly connected to one side of the plurality of mounting bars.

[0008] As a further description of the above technical solution:

[0009] Guide rods are passed through the upper and lower sides of the movable plates on both sides, and both ends of the guide rods are fixedly connected to the inner wall of the chamber.

[0010] As a further description of the above technical solution:

[0011] The lower sides of the two side walls of the cylinder body are fixedly connected with fixing plates, and the middle parts of the fixing plates on both sides are provided with fixing holes.

[0012] As a further description of the above technical solution:

[0013] The front and rear parts of the moving bars on both sides are penetrated by limiting rods, and both ends of the limiting rods are fixedly connected to the inner side walls of the mounting plate.

[0014] As a further description of the above technical solution:

[0015] Positioning rods are arranged on the upper and lower sides of the bidirectional screws on both sides, and the front and rear ends of the plurality of positioning rods all penetrate the moving block and are fixedly connected to the front and rear walls inside the connecting plate.

[0016] As a further description of the above technical solution:

[0017] The plurality of grooves are all square grooves, and the plurality of insertion rods are all square rods.

[0018] As a further description of the above technical solution:

[0019] Through holes are provided on the upper and lower sides of the front wall of the cylinder body, and the rear ends of the two through holes penetrate to the inner wall of the cylinder body.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, a spring can push the connecting block to extend, so that the cleaning structure is always close to the piston rod of the oil cylinder. When disassembly is required, only the pull rod needs to be pulled to pull out the plug plate for replacement. When installation is required, the plug plate can be directly inserted into the slot for fixing, thereby facilitating its installation and disassembly and making the cleaning piece always close to the piston rod, thereby improving the service life.

[0022] 2. In the utility model, the moving block can be driven to move closer or farther away at the same time by rotating the bidirectional screw. When the moving block moves to a suitable position, the mounting bar can be inserted into the moving block and the threaded rod can be rotated to fix a pair of cleaning brushes, thereby being suitable for use with cylinder piston rods of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a lifting cylinder for a coal mine tunnel drilling rig proposed by the utility model;

[0024] Figure 2 This is a front cross-sectional view of a lifting cylinder for a coal mine tunnel drilling rig proposed by the utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a top sectional view of a lifting cylinder for a coal mine tunnel drilling rig proposed by the utility model;

[0027] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0028] Legend:

[0029] 1. Cylinder body; 2. Assembly and disassembly mechanism; 201. Connecting plate; 202. Bidirectional screw; 203. Positioning rod; 204. Moving block; 205. Threaded rod 1; 206. Groove; 207. Insert rod; 208. Mounting strip; 209. Cleaning brush; 3. Mounting plate; 4. Pull rod; 5. Connecting block; 6. Fixed plate; 7. Fixed hole; 8. Through hole; 9. Spring 1; 10. Chamber; 11. Guide rod; 12. Moving plate; 13. Spring 2; 14. Insert block; 15. Moving strip; 16. Limit rod; 17. Slot; 18. Insert plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a lifting cylinder for a coal mine tunnel drilling machine, including a cylinder body 1, a mounting and disassembly mechanism 2 is arranged on the upper side of the cylinder body 1, slots 17 are provided on both sides of the top wall of the cylinder body 1, and plug plates 18 are slidably connected in the two slots 17, chambers 10 are provided on both sides of the cylinder body 1, and pull rods 4 are penetrated through the two side walls of the cylinder body 1, and the close ends of the two pull rods 4 penetrate the inner wall of the chamber 10 and are fixedly connected with a moving plate 12, and the upper and lower parts of the two moving plates 12 away from each other are fixedly connected with one end of a spring 2 13, and the other ends of multiple springs 2 13 are fixedly connected to the inner wall of the chamber 10, and the two moving plates 12 are close to each other. The proximal sides are fixedly connected with plug blocks 14, and the two plug blocks 14 are penetrated into the plug plates 18. The top walls of the two plug plates 18 are fixedly connected with the mounting plates 3. The front and rear parts of the two mounting plates 3 that are far away from each other are fixedly connected with one end of a spring 9, and the other ends of the springs 9 on both sides are fixedly connected with a moving bar 15, and the close sides of the two moving bars 15 are fixedly connected with the connecting blocks 5; the upper and lower sides of the moving plates 12 on both sides are penetrated with guide rods 11, and both ends of the multiple guide rods 11 are fixedly connected to the inner side walls of the chamber 10; the front and rear parts of the moving bars 15 on both sides are penetrated with limit rods 16, and both ends of the multiple limit rods 16 are fixedly connected to the inner side walls of the mounting plates 3;

[0032] Specifically, when the cleaning piece is in close contact with the piston rod for cleaning, the piston rod will also limit the cleaning piece, and the connecting block 5 can push the moving bar 15 to compress the spring 9. When the spring 9 is compressed, it can provide a reverse force, and then under the action of the spring 9, the connecting block 5 can be pushed to extend outward, so that the cleaning structure can always be close to the piston rod of the oil cylinder for cleaning, and under the action of the limiting rod 16, the moving bar 15 can be limited to ensure the stability of the movement of the moving bar 15. At the same time, the spring 9 can also be limited to prevent it from bending when it is compressed. When the mounting plate 3 needs to be disassembled, the plug block 14 can be pulled out of the plug plate 18 by pulling the pull rod 4, so that the plug plate can be cancelled. 18 is limited, and then the installation plate 3 can be pulled to drive the plug plate 18 to be pulled out of the slot 17 for replacement. When installation is needed, the plug plate 18 can be directly inserted into the slot 17, and the plug block 14 can be retracted into the chamber 10 as the plug block 14 is squeezed. When the plug plate 18 is fully inserted, the spring 13 will be squeezed when the plug block 14 is retracted into the chamber 10. Therefore, under the action of the spring 13, the plug block 14 can be pushed to reset and inserted into the plug plate 18 for fixation, thereby facilitating its installation and disassembly and making the cleaning piece always close to the piston rod, thereby improving the service life. At the same time, under the action of the guide rod 11, the stability of the movement of the movable plate 12 can be guaranteed and the spring 13 can be prevented from being compressed and bent.

[0033] Reference Figure 1 , Figure 4 and Figure 5 The assembly and disassembly mechanism 2 includes a connecting plate 201, and the two connecting plates 201 are fixedly connected to the close ends of the connecting blocks 5. The front walls of the two connecting plates 201 are rotatably connected with bidirectional screws 202. The rear ends of the two bidirectional screws 202 penetrate the inner front wall of the connecting plate 201 and are rotatably connected to the inner rear wall of the connecting plate 201. The outer peripheries of the front and rear ends of the two bidirectional screws 202 are threadedly connected with moving blocks 204. The plurality of moving blocks 204 are slidably connected with mounting strips 208. The inner walls of the front and rear moving blocks 204 are provided with grooves 206 on the sides away from each other. The front and rear moving blocks 204 are connected to each other. The far side is rotatably connected with a threaded rod 205, and the near ends of the front and rear threaded rods 205 are penetrated into the groove 206 and threadedly connected with an insertion rod 207, and multiple insertion rods 207 are penetrated into the installation bar 208, and one side of multiple installation bars 208 is fixedly connected with a cleaning brush 209; the upper and lower sides of the two-way screw rods 202 on both sides are provided with positioning rods 203, and the front and rear ends of multiple positioning rods 203 penetrate the moving block 204 and are fixedly connected to the front and rear walls of the connecting plate 201; multiple grooves 206 are square grooves, and multiple insertion rods 207 are square rods;

[0034] Specifically, by rotating the bidirectional screw 202, the connected moving block 204 can be driven to move. Since the moving block 204 is also limited by the positioning rod 203, the moving block 204 cannot rotate with the rotation of the bidirectional screw 202. Therefore, when the bidirectional screw 202 rotates, it can drive the connected moving block 204 to move closer or farther away at the same time. When the moving block 204 moves to a suitable position, the mounting strip 208 can be inserted into the moving block 204, and the threaded rod 205 can be rotated to drive the insertion rod 207 to move. Since the insertion rod 207 is a square rod and the groove 206 is a square groove, the insertion rod 207 can be limited under the action of the groove 206, so that it cannot rotate with the rotation of the threaded rod 205, so that the insertion rod 207 can move along the threaded rod 205 and be inserted into the mounting strip 208, so that the cleaning brush 209 can be fixed, thereby achieving the effect of being suitable for use with cylinder piston rods of different diameters.

[0035] Reference Figure 1 and Figure 4 The lower sides of both side walls of the cylinder body 1 are fixedly connected with fixing plates 6, and the middle parts of both side fixing plates 6 are provided with fixing holes 7; the upper and lower sides of the front wall of the cylinder body 1 are provided with through holes 8, and the rear ends of the two through holes 8 penetrate the inner wall of the cylinder body 1;

[0036] Specifically, by providing a fixing plate 6 and a fixing hole 7 on the fixing plate 6, the oil cylinder can be installed at the required installation position in conjunction with the threaded parts; through the two through holes 8 provided on the front side of the cylinder body 1, oil can be added or unloaded into the cylinder body 1, thereby driving the cylinder piston rod to rise and fall.

[0037] Working principle: In actual use, the connecting block 5 can be pushed outward by the action of the spring 1 9, so that the cleaning structure can always be close to the piston rod of the oil cylinder for cleaning. When disassembly is required, the plug block 14 can be pulled out from the plug plate 18 by pulling the pull rod 4, and the plug plate 18 can be pulled out for replacement by pulling the installation plate 3. When installation is required, the plug plate 18 can be directly inserted into the slot 17. With the squeezing of the plug block 14, the plug block 14 can be retracted into the chamber 10. When the plug plate 18 is fully inserted, the plug plate 18 can be made to move under the action of the spring 2 13. The block 14 is inserted into the plug plate 18 for fixation, thereby facilitating its installation and disassembly and keeping the cleaning piece close to the piston rod at all times, thereby improving the service life. In addition, by rotating the bidirectional screw 202, the connected moving block 204 can be driven to move closer or farther away at the same time. When the moving block 204 moves to a suitable position, the mounting strip 208 can be inserted into the moving block 204, and the threaded rod 205 is rotated to drive the insert rod 207 to be inserted into the mounting strip 208, so that the cleaning brush 209 can be fixed, thereby achieving the effect of being suitable for use with cylinder piston rods of different diameters.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting cylinder for a coal mine tunnel drilling machine, comprising a cylinder body (1), characterized in that: The cylinder body (1) is provided with an assembly and disassembly mechanism (2) on the upper side, slots (17) are provided on both sides of the top wall of the cylinder body (1), and plug plates (18) are slidably connected in the two slots (17), chambers (10) are provided on both sides of the cylinder body (1), and pull rods (4) are passed through the two side walls of the cylinder body (1), and the two pull rods (4) at the close ends pass through the inner wall of the chamber (10) and are fixedly connected to a movable plate (12), and the two movable plates (12) are fixedly connected to one end of a spring (13) at the upper and lower parts of the far sides thereof, and a plurality of the springs (13) are provided. The other ends of the two (13) are fixedly connected to the inner wall of the chamber (10), the adjacent sides of the two movable plates (12) are fixedly connected with plug blocks (14), the two plug blocks (14) are inserted into the plug plates (18), the top walls of the two plug plates (18) are fixedly connected with mounting plates (3), the front and rear parts of the two mounting plates (3) away from each other are fixedly connected with one end of a spring (9), the other ends of the springs (9) on both sides are fixedly connected with a movable bar (15), and the adjacent sides of the two movable bars (15) are fixedly connected with a connecting block (5).

2. The lifting cylinder for a coal mine tunnel drilling machine according to claim 1, characterized in that: The assembly and disassembly mechanism (2) comprises a connecting plate (201), wherein the two connecting plates (201) are fixedly connected to the adjacent ends of the connecting block (5), the front walls of the two connecting plates (201) are rotatably connected to bidirectional screws (202), the rear ends of the two bidirectional screws (202) pass through the inner front wall of the connecting plate (201) and are rotatably connected to the inner rear wall of the connecting plate (201), the outer circumferences of the front and rear ends of the two bidirectional screws (202) are threadedly connected to moving blocks (204), and the plurality of moving blocks (204) are slidably connected to the inner sides of the moving blocks (204). A mounting strip (208) is connected, and grooves (206) are provided on the inner walls of the front and rear moving blocks (204) on the sides away from each other. The front and rear moving blocks (204) on the sides away from each other are rotatably connected to threaded rods (205), and the ends of the threaded rods (205) on the front and rear sides pass through the grooves (206) and are threadedly connected to plug rods (207), and a plurality of plug rods (207) pass through the mounting strip (208), and a cleaning brush (209) is fixedly connected to one side of the plurality of mounting strips (208).

3. The lifting cylinder for a coal mine tunnel drilling machine according to claim 1, characterized in that: Guide rods (11) penetrate the upper and lower sides of the movable plates (12) on both sides, and both ends of the plurality of guide rods (11) are fixedly connected to the inner wall of the chamber (10).

4. The lifting cylinder for a coal mine tunnel drilling machine according to claim 1 is characterized in that: The lower sides of both side walls of the cylinder body (1) are fixedly connected with fixing plates (6), and the middle parts of the fixing plates (6) on both sides are provided with fixing holes (7).

5. The lifting cylinder for a coal mine tunnel drilling machine according to claim 1, characterized in that: The front and rear parts of the moving bars (15) on both sides are penetrated by limiting rods (16), and both ends of the plurality of limiting rods (16) are fixedly connected to the inner side walls of the mounting plate (3).

6. The lifting cylinder for a coal mine tunnel drilling machine according to claim 2, characterized in that: Positioning rods (203) are provided on the upper and lower sides of the bidirectional screw rods (202) on both sides, and the front and rear ends of the plurality of positioning rods (203) penetrate the moving block (204) and are fixedly connected to the front and rear walls inside the connecting plate (201).

7. The lifting cylinder for a coal mine tunnel drilling machine according to claim 2, characterized in that: The plurality of grooves (206) are all square grooves, and the plurality of insertion rods (207) are all square rods.

8. The lifting cylinder for a coal mine tunnel drilling machine according to claim 1, characterized in that: Through holes (8) are provided on the upper and lower sides of the front wall of the cylinder body (1), and the rear ends of the two through holes (8) penetrate through the inner wall of the cylinder body (1).

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