Protective support of drilling bit for mining

Abstract

The utility model relates to the technical field of drilling protection equipment, and discloses a protection support of a drilling bit for mining, which comprises a sleeve, first connecting plates are arranged at two ends of the sleeve, second connecting plates are arranged on the upper sides of the first connecting plates, and fixing rings are fixedly connected between the first connecting plates and the second connecting plates. An arc-shaped groove is formed in the fixing ring, a ball is arranged in the arc-shaped groove, an oil storage ring is fixedly connected to the upper surface of the second connecting plate, and through cooperation of the oil storage ring, an oil storage cavity, a circulation channel, an oil outlet hole and other structures, lubricating oil can be added into the arc-shaped groove where the ball is located without disassembly; the lubricating maintenance process is effectively simplified, time and labor are saved, the continuity of mining operation is effectively guaranteed, the working efficiency is improved, and the problems of part damage, loss or impurity invasion possibly caused by frequent disassembly are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to drilling protection equipment technical field, concretely is a kind of protection support of drilling head for mining. BACKGROUND

[0002] In the exploration and mining process of mine, drilling is one of the indispensable steps, and drill bit is one of the indispensable equipment in the drilling process. Under normal circumstances, drill bit is driven by drilling machine to drill the surface of mine. In order to ensure the accuracy of drill bit in the drilling process, corresponding protection support is usually configured to limit the position of drill bit, so as to avoid the inclination of drill bit in the drilling process.

[0003] In the prior art, the Chinese utility model patent with publication number CN222513493U discloses a protection support of drilling head for mining. Although the above-mentioned prior art converts the sliding friction between the drill bit and the sleeve into rolling friction by setting the ball, which reduces the frictional resistance. However, in actual use, the lubricating grease in the ring groove will gradually fail due to heating, oxidation and pollution during long-term high-speed operation, and needs to be replenished or replaced regularly. In the existing structure, if lubricating oil or lubricating grease needs to be added to the ball in the ring groove, the end covers symmetrically arranged at both ends of the sleeve must be disassembled first. This process not only is complicated and time-consuming, but also seriously affects the continuity and working efficiency of mining operation. In addition, in the space-limited and complex environment of underground work, frequent disassembly increases the risk of part loss or damage, and may introduce impurities, affecting the lubrication effect and even accelerating the wear of the ball. Therefore, it is inconvenient to use. In view of the above problems, we propose a protection support of drilling head for mining to solve the above problems. SUMMARY

[0004] In view of the shortcomings of the prior art, the utility model provides a protection support of drilling head for mining to solve the problem of inconvenient use of some protection supports of drilling head for mining.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a protection support of drilling head for mining, comprising a sleeve, first connecting plates are arranged at both ends of the sleeve, second connecting plates are arranged on the upper side of the first connecting plates, fixed rings are fixedly connected between the first connecting plates and the second connecting plates, arc-shaped grooves are formed in the inside of the fixed rings, balls are arranged in the arc-shaped grooves, oil storage rings are fixedly connected to the upper surface of the second connecting plates, oil outlet holes are formed in the inside of the fixed rings and communicate with the arc-shaped grooves, flow-through channels are formed in the second connecting plates and communicate with the oil outlet holes, oil storage chambers are formed in the inside of the oil storage rings and communicate with the flow-through channels, and driving assemblies are arranged on the upper surface of the second connecting plates.

[0006] Preferably, the upper surface of the oil storage ring is provided with a connecting ring, the lower surface of the connecting ring is fixedly connected with a sliding rod, the sliding rod slides through the inside of the oil storage chamber, and the lower end of the sliding rod is fixedly connected with a sealing plug.

[0007] Preferably, the driving assembly comprises a control box, the control box is fixedly connected to the upper surface of the second connecting plate, a threaded rod is rotatably connected to the inside of the control box, a moving plate is threadedly sleeved on the outside of the threaded rod, a first through groove is formed in the surface of the control box, the moving plate is slidably connected to the inside of the first through groove and extends out of the first through groove, an L-shaped connecting plate is fixedly connected to the surface of the connecting ring, the L-shaped connecting plate is fixedly connected with the moving plate, and an indicating assembly is formed in the surface of the moving plate.

[0008] Preferably, a Z-shaped limiting plate is fixedly connected to the surface of the connecting ring, a guide rod is slidably sleeved in the inside of the Z-shaped limiting plate, and the guide rod is fixedly connected with the second connecting plate.

[0009] Preferably, the indicating assembly comprises an indicating arrow, the indicating arrow is fixedly connected with the moving plate, a second through groove is formed in the surface of the control box, the indicating arrow is slidably connected to the inside of the second through groove and extends out of the second through groove, and a scale mark is formed in the surface of the control box.

[0010] Preferably, the upper end of the threaded rod rotatably penetrates into the inside of the control box, a rectangular rod is slidably sleeved in the inside of the threaded rod, the rectangular rod slidably penetrates out of the upper end of the threaded rod, and an operating knob is fixedly connected to the upper end of the rectangular rod.

[0011] Preferably, the lower surface of the operating knob is fixedly connected with a plug rod, a through hole is formed in the upper surface of the control box and is in communication with the inside of the control box, and the through hole is matched with the plug rod.

[0012] Preferably, a return spring is fixedly connected between the inside of the threaded rod and the inside of the rectangular rod.

[0013] Compared with the prior art, the utility model provides a protection support of drilling head for mine mining, has the following beneficial effects:

[0014] 1、The protection support of drilling head for mine mining, through the cooperation between the oil storage ring, the oil storage chamber, the flow passage and the oil outlet hole and other structures, realizes that the lubricating oil can be added to the arc-shaped groove where the ball is located without disassembly, effectively simplifies the lubricating maintenance process, saves time and effort, effectively guarantees the continuity of mining operation, improves work efficiency, and avoids the problems of component damage, loss or impurity invasion caused by frequent disassembly.

[0015] 2、The protective support of the mining drilling head for mine mining, through cooperation between the indicating arrow and the scale mark structure, the operator can control the opening degree of the sealing plug, thereby adjusting the injection speed and flow of the lubricating oil as needed, and precise control of the lubrication process is realized.

[0016] 3、The protective support of the mining drilling head for mine mining, through cooperation between the indicating arrow and the scale mark structure, the operator can control the opening degree of the sealing plug, thereby adjusting the injection speed and flow of the lubricating oil as needed, and precise control of the lubrication process is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the protective support of the mining drilling head for mine mining.

[0018] Figure 2 It is a sectional view structure schematic view of the second connecting plate.

[0019] Figure 3 It is a structure schematic view of the second connecting plate.

[0020] Figure 4 It is Figure 2 It is an enlarged view of A in the middle.

[0021] Figure 5 It is a sectional view structure schematic view of the control box.

[0022] Figure 6 It is a sectional view structure schematic view of the threaded rod.

[0023] Figure 7 It is a structure schematic view of the connecting ring.

[0024] In the figure: 1, sleeve; 2, first connecting plate; 3, second connecting plate; 4, fixed ring; 5, arc-shaped groove; 6, ball; 7, oil storage ring; 8, connecting ring; 9, oil outlet hole; 10, flow-through channel; 11, oil storage chamber; 12, sealing plug; 13, sliding rod; 14, control box; 15, threaded rod; 16, moving plate; 17, L-shaped connecting plate; 18, first through slot; 19, Z-shaped limiting plate; 20, guide rod; 21, operation knob; 22, insertion rod; 23, rectangular rod; 24, reset spring; 25, through hole; 26, second through slot; 27, indicating arrow; 28, scale mark. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0026] Please refer to Figures 1-7 The utility model provides a kind of technical scheme: a protective support of drilling head for mine mining, sleeve 1 is connected with the first connecting plate 2 for being used to connect, two first connecting plates 2 are same structure, so the following emphasis is focused on upper first connecting plate 2 and is described, the upper side of first connecting plate 2 is provided with the second connecting plate 3, and fixedly connected with the fixing ring 4 for being used to connect between first connecting plate 2 and second connecting plate 3, arc slot 5 is opened in the inside of fixing ring 4, ball 6 for being used to contact with drill bit is arranged in the inside of arc slot 5, and the inside of arc slot 5 is also matched with the retaining frame arranged longitudinally for limiting the movement track of ball 6, since it is the conventional technical means known in the art, so it is not described too much in this paper, the upper surface of second connecting plate 3 is fixedly connected with the oil storage ring 7 for being used to store lubricating oil, and the surface of oil storage ring 7 is also provided with corresponding oil injection hole.

[0027] The inside of fixing ring 4 is provided with a plurality of oil outlet holes 9 for lubricating oil circulation, which are communicated with arc slot 5, and the opening position of oil outlet hole 9 should be located between adjacent two balls 6, since the retaining frame will always limit the position of ball 6, so in the actual use process, ball 6 will not block oil outlet hole 9, a plurality of flow channels 10 for lubricating oil circulation are arranged in the inside of second connecting plate 3, flow channel 10 is communicated with oil outlet hole 9, a plurality of oil storage cavities 11 for storing lubricating oil are arranged in the inside of oil storage ring 7, a plurality of oil storage cavities 11 are communicated with each other, oil storage cavity 11 is communicated with flow channel 10, and the upper surface of second connecting plate 3 is provided with driving assembly.

[0028] In the above embodiment, sleeve 1 is divided into inner cylinder and outer cylinder, and the surface of outer cylinder is provided with water inlet pipe and water outlet pipe, so as to cool sleeve 1, thereby effectively preventing safety accidents caused by local overheating of drill bit and sleeve 1, and sleeve 1 is connected with upper first connecting plate 2 and lower second connecting plate 3 respectively, so as to realize the assembly of the whole device, and upper second connecting plate 3 and lower first connecting plate 2 are both located outside sleeve 1.

[0029] The upper surface of the oil storage ring 7 is provided with a connecting ring 8, the lower surface of the connecting ring 8 is fixedly connected with a sliding rod 13 for limiting the movement trajectory of the structure, the sliding rod 13 slides through the inside of the oil storage chamber 11, the lower end of the sliding rod 13 is fixedly connected with an elastic sealing plug 12, the sealing plug 12 is used for sealing the connection between the oil storage chamber 11 and the flow-through channel 10, the movement of the connecting ring 8 can drive the sliding rod 13 and the sealing plug 12 to move, so that a gap is generated between the sealing plug 12 and the oil storage chamber 11, and then the lubricating oil in the inside of the oil storage chamber 11 will enter the inside of the flow-through channel 10, and finally uniformly enter the inside of the arc-shaped groove 5 from the inside of each oil outlet hole 9.

[0030] The driving assembly comprises a control box 14 for connection, the control box 14 is fixedly connected to the upper surface of the second connecting plate 3, a threaded rod 15 for transmission is rotatably connected in the inside of the control box 14, a moving plate 16 for connection is threadedly sleeved on the outside of the threaded rod 15, a first through groove 18 for limiting the movement trajectory of the structure is formed in the surface of the control box 14, the moving plate 16 is slidably connected in the inside of the first through groove 18 and extends out of the first through groove 18, an L-shaped connecting plate 17 for connection is fixedly connected to the surface of the connecting ring 8, the L-shaped connecting plate 17 is fixedly connected with the moving plate 16, and an indicating assembly is formed in the surface of the moving plate 16, the rotation of the threaded rod 15 can drive the movement of the moving plate 16, the movement of the moving plate 16 can drive the movement of the L-shaped connecting plate 17, and the movement of the L-shaped connecting plate 17 can drive the movement of the connecting ring 8.

[0031] The surface of the connecting ring 8 is fixedly connected with a Z-shaped limiting plate 19 for connection, a guide rod 20 for limiting the movement trajectory of the structure is slidably sleeved in the inside of the Z-shaped limiting plate 19, the guide rod 20 is fixedly connected with the second connecting plate 3, and the movement of the connecting ring 8 can drive the Z-shaped limiting plate 19 to slide up and down on the surface of the guide rod 20, so that the stability of the connecting ring 8 in the vertical direction is further improved.

[0032] The indicating assembly comprises an indicating arrow 27, the indicating arrow 27 is fixedly connected with the moving plate 16, a second through groove 26 is formed in the surface of the control box 14, the indicating arrow 27 is slidably connected in the inside of the second through groove 26 and extends out of the second through groove 26, and a scale mark 28 for cooperation with the indicating arrow 27 is arranged on the surface of the control box 14, the movement of the moving plate 16 can drive the indicating arrow 27 to slide in the inside of the second through groove 26, so that the opening between the sealing plug 12 and the oil storage chamber 11 is controlled under the cooperation of the scale mark 28, and the injection speed of the lubricating oil is controlled.

[0033] The upper end of the threaded rod 15 is rotatably penetrated out of the inside of the control box 14, the inside of the threaded rod 15 is slidably sleeved with a rectangular rod 23, the rectangular rod 23 is slidably penetrated out of the upper end of the threaded rod 15, the upper end of the rectangular rod 23 is fixedly connected with an operation knob 21, and the surface of the operation knob 21 can be provided with anti-skid grooves, so as to increase the friction with the hands and achieve the purpose of preventing the hands from slipping. The rotation of the operation knob 21 can drive the rotation of the rectangular rod 23, and the rotation of the rectangular rod 23 can drive the rotation of the threaded rod 15.

[0034] The lower surface of the operation knob 21 is fixedly connected with a plug rod 22 for locking the rotation angle of the operation knob 21, the upper surface of the control box 14 is provided with a through hole 25 in communication with the inside, the through hole 25 and the plug rod 22 are matched, and the through hole 25 and the plug rod 22 are both arranged in a circumferential array. When the plug rod 22 is located in the inside of the through hole 25, the operation knob 21 cannot be rotated at this time, and the threaded rod 15 cannot be rotated, so as to ensure the stability of the threaded rod 15 in the vibration environment.

[0035] The rectangular rod 23 and the threaded rod 15 are fixedly connected between the chamber and the reset spring 24 for resetting the rectangular rod 23 and the operation knob 21. The setting of the reset spring 24 effectively ensures the stability of the rectangular rod 23, so as to avoid the situation that the plug rod 22 is separated from the inside of the through hole 25 when not subjected to external force.

[0036] In the above embodiment, when the indication arrow 27 and the scale mark 28 are aligned, the plug rod 22 will always be inserted into the inside of the through hole 25 under the action of the reset spring 24.

[0037] Working principle:

[0038] The protective support of the mining drilling bit is used, first, the device is installed on the outside of the drilling bit through the sleeve 1, when the inside of the arc-shaped groove 5 needs to add lubricating oil, the operator can hold the operation knob 21 and lift the operation knob 21 upwards, at this time, the operation knob 21 drives the rectangular rod 23 to slide in the inside of the threaded rod 15, and the reset spring 24 is elastically deformed, until the plug rod 22 is completely separated from the inside of the through hole 25, then the operator rotates the operation knob 21, the rotation of the operation knob 21 drives the rotation of the rectangular rod 23, the rotation of the rectangular rod 23 drives the rotation of the threaded rod 15, the rotation of the threaded rod 15 drives the movement of the moving plate 16, the movement of the moving plate 16 drives the movement of the L-shaped connecting plate 17, the movement of the L-shaped connecting plate 17 drives the movement of the connecting ring 8, and the movement of the connecting ring 8 drives the up and down sliding of the Z-shaped limiting plate 19 on the surface of the guide rod 20, thereby further improving the stability of the connecting ring 8 when moving vertically, then the movement of the connecting ring 8 drives the movement of the sliding rod 13 and the sealing plug 12, so that the sealing plug 12 and the oil storage chamber 11 are connected, and the lubricating oil in the oil storage chamber 11 enters the inside of the flow channel 10, and finally the lubricating oil is evenly added to the inside of the arc-shaped groove 5 from the inside of each oil outlet hole 9.

[0039] In addition, the movement of the moving plate 16 drives the sliding of the indicating arrow 27 in the inside of the second through groove 26, thereby controlling the opening between the sealing plug 12 and the oil storage chamber 11 under the cooperation of the scale mark 28, thereby controlling the injection speed of the lubricating oil.

[0040] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A protective support for a borehole drill bit for mining, comprising a sleeve (1), characterised in that: Both ends of the sleeve (1) are provided with the first connecting plate (2), the upper side of the first connecting plate (2) is provided with the second connecting plate (3), the first connecting plate (2) and the second connecting plate (3) are fixedly connected with the fixed ring (4), the inside of the fixed ring (4) is provided with the arc-shaped groove (5), the inside of the arc-shaped groove (5) is provided with the ball (6), the upper surface of the second connecting plate (3) is fixedly connected with the oil storage ring (7), the inside of the fixed ring (4) is provided with the oil outlet hole (9) which is communicated with the arc-shaped groove (5), the inside of the second connecting plate (3) is provided with the flow-through channel (10), the flow-through channel (10) is communicated with the oil outlet hole (9), the inside of the oil storage ring (7) is provided with the oil storage chamber (11), the oil storage chamber (11) is communicated with the flow-through channel (10), and the upper surface of the second connecting plate (3) is provided with a driving assembly.

2. The protective support for a drilling bit for mining in mines according to claim 1, characterized in that: The upper surface of the oil storage ring (7) is provided with the connecting ring (8), the lower surface of the connecting ring (8) is fixedly connected with the sliding rod (13), the sliding rod (13) slides through the inside of the oil storage chamber (11), and the lower end of the sliding rod (13) is fixedly connected with the sealing plug (12).

3. The protective support for a borehole drilling bit for mining according to claim 2, characterized in that: The driving assembly comprises a control box (14), the control box (14) is fixedly connected to the upper surface of the second connecting plate (3), the inside of the control box (14) is rotatably connected with the threaded rod (15), the outside of the threaded rod (15) is threadedly sleeved with the moving plate (16), the surface of the control box (14) is provided with the first through groove (18), the moving plate (16) is slidably connected in the inside of the first through groove (18) and extends out of the first through groove (18), the surface of the connecting ring (8) is fixedly connected with the L-shaped connecting plate (17), the L-shaped connecting plate (17) is fixedly connected with the moving plate (16), and the surface of the moving plate (16) is provided with an indicating assembly.

4. The protective support for a borehole drilling bit for mining according to claim 3, characterized in that: The surface of the connecting ring (8) is fixedly connected with the Z-shaped limiting plate (19), the inside of the Z-shaped limiting plate (19) is slidably sleeved with the guide rod (20), and the guide rod (20) is fixedly connected with the second connecting plate (3).

5. A protective support for a borehole drilling bit for use in mining according to claim 4, characterised in that: The indicating assembly comprises an indicating arrow (27), the indicating arrow (27) is fixedly connected with the moving plate (16), the surface of the control box (14) is provided with the second through groove (26), the indicating arrow (27) is slidably connected in the inside of the second through groove (26) and extends out of the second through groove (26), and the surface of the control box (14) is provided with a scale mark (28).

6. A protective support for a borehole drilling bit for use in mining according to claim 5, characterised in that: The upper end of the threaded rod (15) rotates through the inside of the control box (14), the inside of the threaded rod (15) is slidably sleeved with the rectangular rod (23), the rectangular rod (23) slides through the upper end of the threaded rod (15), and the upper end of the rectangular rod (23) is fixedly connected with the operation knob (21).

7. A protective support for a borehole drilling bit for use in mining according to claim 6, characterised in that: The lower surface of the operation knob (21) is fixedly connected with the insertion rod (22), the upper surface of the control box (14) is provided with the through hole (25) which is communicated with the inside, and the through hole (25) is matched with the insertion rod (22).

8. A protective support for a borehole drilling bit for use in mining according to claim 7, characterised in that: The rectangular rod (23) and the chamber inside the threaded rod (15) are fixedly connected with a reset spring (24).

Images