CN218206623U

CN218206623U - Large-stroke clamp holder for coal mine

Info

Publication number: CN218206623U
Application number: CN202222304919.2U
Authority: CN
Inventors: 刘颖哲; 王浩; 韩军延; 贾小孩
Original assignee: Henan Jukuang Intelligent Equipment Co ltd
Current assignee: Henan Jukuang Intelligent Equipment Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-01-03
Anticipated expiration: 2032-08-31

Abstract

The utility model belongs to the technical field of the drilling rod anchor clamps, concretely relates to big stroke holder for coal mine, including the base, with set up the hydro-cylinder on the base, the both ends of hydro-cylinder are provided with actuating mechanism respectively, be provided with screens mechanism in the through-hole of seting up in the middle of the hydro-cylinder, be fixed with spacing plate cover on the hydro-cylinder at through-hole both ends respectively. The beneficial effects are that: the clamping force can be adjusted by adjusting the pressure of the oil cavity at any time by setting the driving mechanism, so that the clamping force is changed, the required force is achieved, the clamping force is adjustable, the use is flexible, the application range is wide, the problem that the slips are quickly abraded due to frequent friction between the slips and a drill rod can be solved, and the practicability and flexibility of the whole device are improved; the friction force between the drill rod and the holder can be increased by arranging the convex block and the strip groove on one side of the arc-shaped slip, so that the drill rod is more stable to fix, and the drill rod is prevented from rotating and rubbing with the holder in the rotating process to influence the normal use of workers.

Description

Large-stroke clamp holder for coal mine

Technical Field

The utility model belongs to the technical field of the drilling rod anchor clamps, especially, relate to a long stroke holder for coal mine.

Background

The slips with small stroke are generally arranged in the conventional holder, the clamping force is limited, the slips with small stroke can be worn after being used for a long time, the problem of rotary wear of the slips and a drill rod can be caused due to the untightened state, and the steel and iron friction is forbidden under the underground gas state so as to avoid accidents caused by sparks.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a long stroke holder for coal mine in order to solve the above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a large-stroke clamp holder for a coal mine comprises a base and oil cylinders arranged on the base, wherein driving mechanisms are respectively arranged at two ends of each oil cylinder, a clamping mechanism is arranged in a through hole formed in the middle of each oil cylinder, and limiting plate covers are respectively fixed on the oil cylinders at two ends of the through hole;

the driving mechanism comprises a driving assembly arranged in the oil cylinder and a closed assembly fixed at one end of the oil cylinder through a bolt; the driving assembly comprises driving grooves formed in two ends of the oil cylinder, a piston with a T-shaped cross section is slidably mounted in each driving groove, a disc spring is sleeved on the piston, one end of the disc spring is fixed in each driving groove, a moving groove communicated with the through hole is formed in the bottom wall of each driving groove, and one end of the piston is slidably connected with the moving groove.

Preferably, the sealing assembly comprises a sealing cover fixed at one end of the oil cylinder, an oil cavity is arranged between the sealing cover and the piston, an oil inlet hole is formed in the sealing cover, and the oil inlet hole penetrates through the oil cavity and extends to the piston body.

Preferably, screens mechanism includes that the symmetry installs two sets of screens subassemblies in the through-hole, the screens subassembly includes the connecting block, fixes the arc slips in connecting block one side, slidable mounting has the trapezoidal piece fixed with piston one end in the dovetail groove that connecting block one side was seted up, integrated into one piece has a plurality of lugs on the inner wall of arc slips.

Preferably, the oil-proof pad sleeved at one end of the piston is arranged in the placing groove arranged on the side wall of the moving groove.

Preferably, a plurality of grooves are transversely and uniformly formed in the inner wall of the arc-shaped slip.

Preferably, a gap is arranged between the two clamping components.

The beneficial effects are that: the clamping force can be adjusted by workers through setting the driving mechanism, the pressure of the oil cavity can be adjusted at any time, the clamping force is changed, the required force is achieved, the clamping force is adjustable, the use is flexible, the application range is wide, the problem that the slips are quickly abraded due to frequent friction between the slips and a drill rod can be solved, the maintenance failure rate is reduced, the safety factor is increased, and the practicability and the flexibility of the whole device are improved; the friction force between the drill rod and the holder can be increased by arranging the convex block and the strip groove on one side of the arc-shaped slip, so that the drill rod is more stable to fix, and the drill rod is prevented from rotating and rubbing with the holder in the rotating process to influence the normal use of workers.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a perspective view of a large-stroke clamp holder for coal mine according to the present invention;

fig. 2 is a cross-sectional view of the large-stroke clamp holder for coal mine according to the present invention;

fig. 3 is a perspective view of the internal structure of the large-stroke clamp holder for coal mine.

The reference numerals are illustrated below:

1. a base; 2. an oil cylinder; 21. a drive slot; 22. a through hole; 3. a limiting plate cover; 4. a closure cap; 41. an oil inlet hole; 5. a piston; 51. a trapezoidal block; 52. an oil-proof pad; 6. connecting blocks; 7. an arc-shaped slip; 8. a disc spring.

Detailed Description

The technical scheme of the invention is further explained by combining the accompanying drawings as follows:

as shown in fig. 1-3, the large-stroke clamp holder for the coal mine comprises two groups of bases 1, oil cylinders 2 are fixed on the upper end faces of the two groups of bases 1, the oil cylinders 2 are arranged in a cylindrical shape, through holes 22 are formed in the middles of the oil cylinders 2, limiting plate covers 3 are fixed at openings at two ends of the through holes 22 respectively, each limiting plate cover 3 is composed of a square plate and a cylinder, through grooves communicated with the cylinders are formed in the middles of the square plates, the limiting plate covers 3 are fixed at the through holes 22 in the middles of the oil cylinders 2 through bolts, and the through holes 22 are rectangular holes; through-hole 22 internally mounted has two sets of screens subassemblies, two sets of screens subassemblies are symmetrical about 2 length central lines of hydro-cylinder, be provided with the clearance between two sets of screens subassemblies, be cylindric hollow in the middle of two sets of screens subassemblies constitute, easy to assemble drilling rod like this, the screens subassembly includes connecting block 6, with fix the arc slips 7 in connecting block 6 one side, the upper and lower both sides of connecting block 6 can contact with through-hole 22, also can be provided with the clearance with through-hole 22, the dovetail groove has been seted up to one side of connecting block 6, slidable mounting has dovetail 51 in the dovetail groove, the opposite side of connecting block 6 and the outer wall fixed connection of arc slips 7, a plurality of grooves have evenly been seted up on the inner wall of arc slips 7, the groove is transversely seted up, evenly be provided with a plurality of lugs between two adjacent grooves, lug integrated into one piece is on the inner wall of arc slips 7.

The two ends of the oil cylinder 2 are respectively provided with a driving mechanism, the driving mechanism comprises a driving component and a sealing component fixed at one end of the oil cylinder 2 through a bolt, the driving component comprises driving grooves 21 respectively formed in the two ends of the oil cylinder 2, the middle position of the bottom wall of each driving groove 21 is provided with a moving groove, the moving groove is communicated with a through hole 22, a piston 5 is horizontally and movably installed in each driving groove 21, the piston 5 is a T-shaped cylinder, a body on one side of the piston 5 is slidably connected with the driving grooves 21, a cylinder on the other side of the piston 5 is slidably installed in the moving groove, one end of the piston is fixedly connected with a trapezoidal block 51, a disc spring 8 is sleeved on the piston 5, one end of the disc spring 8 is fixedly connected with the bottom wall of each driving groove 21, the other end of the disc spring 8 is fixed on one side of the piston 5, the cylinder on the other side of the piston 5 penetrates through the center of the disc spring 8, an oil-proof pad 52 is further sleeved on the cylinder on one side of the piston 5, the oil-proof pad 52 is positioned in the placing groove, and the placing groove is formed in the side wall of the moving groove; the sealing assembly comprises a sealing cover 4, the sealing cover 4 is respectively fixed to two ends of the oil cylinder 2 through bolts, an oil cavity is formed between the sealing cover 4 and the piston 5 installed in the driving groove 21, an oil inlet hole 41 is formed in the middle of the sealing cover 4, and the oil inlet hole 41 is communicated with the oil cavity and extends to the body of the piston 5.

The working principle is as follows: when the oil pipe fixing device is used, an oil conveying pipe in a worker control device is connected into oil inlet holes 41 at two ends of an oil cylinder 2, one end of a drill rod penetrates through a limiting plate cover 3 and is inserted into a cylindrical hole formed by two groups of arc slips 7, then an oil cavity in a driving groove 21 is pressurized through the control device, after oil pressure enters, a piston 5 is pushed to move, one end of the piston 5 drives a connecting block 6 to move, and the connecting block 6 drives the arc slips 7 to move, so that the drill rod is fixed; after drilling is completed, the oil pressure in the oil cavity is adjusted by the staff through the control device again, the oil pressure is reduced, the piston 5 arranged in the driving groove 21 returns to the original position due to the action of the disc spring 8, the piston 5 drives the connecting block 6 to reset, the connecting block 6 drives the arc-shaped slip 7 to reset, and the drill rod can be taken out at the moment.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a colliery is with big stroke holder, includes base (1), and hydro-cylinder (2) of setting on base (1), its characterized in that: two ends of the oil cylinder (2) are respectively provided with a driving mechanism, a through hole (22) formed in the middle of the oil cylinder (2) is internally provided with a clamping mechanism, and the oil cylinders (2) at two ends of the through hole (22) are respectively fixed with a limiting plate cover (3);

the driving mechanism comprises a driving component arranged in the oil cylinder (2) and a sealing component fixed at one end of the oil cylinder (2) through a bolt; the drive assembly is including offering drive groove (21) at hydro-cylinder (2) both ends, slidable mounting has piston (5) that the cross-section is T shape in drive groove (21), the cover is equipped with dish spring (8) on piston (5), the one end of dish spring (8) is fixed in drive groove (21), set up the shifting chute with through-hole (22) intercommunication on the diapire of drive groove (21), the one end and the shifting chute sliding connection of piston (5).

2. The long-stroke clamp holder for the coal mine as claimed in claim 1, wherein: the sealing assembly comprises a sealing cover (4) fixed at one end of the oil cylinder (2), an oil cavity is formed between the sealing cover (4) and the piston (5), an oil inlet hole (41) is formed in the sealing cover (4), and the oil inlet hole (41) penetrates through the oil cavity to extend to the body of the piston (5).

3. The long-stroke clamp holder for the coal mine as claimed in claim 1, wherein: screens mechanism includes that the symmetry installs two sets of screens subassemblies in through-hole (22), the screens subassembly includes connecting block (6), fixes arc slips (7) in connecting block (6) one side, sliding mounting has trapezoidal piece (51) fixed with piston (5) one end in the dovetail groove that connecting block (6) one side was seted up, integrated into one piece has a plurality of lugs on the inner wall of arc slips (7).

4. The large-stroke coal mine gripper according to claim 1, wherein: an oil-proof pad (52) sleeved at one end of the piston (5) is arranged in a placing groove formed in the side wall of the moving groove.

5. A coal mine long stroke clamp holder as claimed in claim 3, wherein: a plurality of grooves are transversely and uniformly formed in the inner wall of the arc-shaped slip (7).

6. A coal mine long stroke clamp holder as claimed in claim 3, wherein: and a gap is arranged between the two clamping components.