Coal mine drainage drilling machine water braid head anti-dropping device

Abstract

The utility model belongs to coal mine equipment technical field, concretely is a kind of coal mine pumping and draining drilling machine water braid head anti-drop device. Including water braid head snap ring, zip fastener, drill rod device;One end of zip fastener is connected with water braid head snap ring, other end is connected with drill rod device;Water braid head snap ring is fitted on water braid head;Drill rod device includes bearing, bushing, set screw, locating nut, bushing one end is fixedly connected with the inner sleeve of bearing and coaxial arrangement, other end of zip fastener is connected with the outer sleeve of bearing, the side wall of bushing is opened and has location through-hole, location through-hole place welds locating nut, locating nut is equipped with set screw inside.The utility model discloses a kind of coal mine pumping and draining drilling machine water braid head anti-drop device, provide a kind of device to prevent water braid head suddenly from the device of ejecting on drill rod, with high safety, the advantage of convenient installation.Greatly guarantee the safety of worker and prolong the life of equipment, with good practical application value.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine equipment technology, specifically a device for preventing the water braid head of a coal mine drainage drilling rig from detaching. Background Technology

[0002] Coal mines widely use gas drainage drilling rigs for gas extraction operations. The drilling rigs generally use high-pressure water to drive the drill bit at the front end of the drill rod to rotate for drilling. The high-pressure water enters the water braid head, drill rod, and drill bit through hydraulic pipes. After prolonged use, the threads of the water braid head and drill rod increase in wear. Under the pressure of high-pressure water, the water braid head may suddenly pop out of the drill rod, injuring people or damaging equipment, posing a great safety threat to personnel working nearby and easily causing injuries. Utility Model Content

[0003] To address the above problems, the purpose of this utility model is to provide a water braid head anti-detachment device for coal mine drainage drilling rigs. Before drilling operations, the device is assembled, with a water braid head retaining ring installed on the water braid head and a drill rod retaining device installed on the drill rod. The upper and lower positioning screws are tightened to hold the drill rod in place. During drilling operation, if the water braid head loosens or pops out, a chain acts as a restraint, preventing the water braid head from ejecting. This device offers advantages such as extending equipment lifespan, preventing accidents caused by the water braid head popping out of the drill rod, and preventing personnel injury.

[0004] This utility model is achieved using the following technical solution: A device for preventing the water braid head from detaching from a coal mine drainage drilling rig includes a water braid head retaining ring, a zipper, and a drill rod clamping device.

[0005] One end of the zipper is connected to the water braid head retainer, and the other end is connected to the drill rod clamping device; the water braid head retainer is fitted onto the water braid head; the drill rod clamping device includes a bearing, a sleeve, a positioning screw, and a positioning nut. One end of the sleeve is fixedly connected to the inner sleeve of the bearing and is coaxially arranged. The other end of the zipper is connected to the outer sleeve of the bearing. A positioning through hole is opened on the side wall of the sleeve. A positioning nut is welded to the positioning through hole. A positioning screw is installed inside the positioning nut. The sleeve is fitted onto the drill rod and its position is fixed by tightening the positioning screw.

[0006] In a further preferred embodiment, the side wall of the sleeve has two symmetrically opened positioning through holes, and a positioning nut is welded to each positioning through hole. Positioning screws are symmetrically installed inside the two positioning nuts.

[0007] More preferably, the drill rod clamping device is installed on the drill rod and fixed by tightening the drill rod with two positioning screws on the upper and lower parts of the drill rod clamping device.

[0008] More preferably, the sleeve is a steel pipe.

[0009] When using, first install the pre-installed anti-detachment device on the water braid head. First, unscrew the threaded part at the front of the water braid head, then install the water braid head retainer on the water braid head, and then tighten the threaded part. Next, install the drill rod clamping device on the drill rod, and tighten the upper and lower positioning screws against the drill rod. When the water braid head loosens or pops out, the zipper will act as a restraint to prevent the water braid head from ejecting.

[0010] This utility model is reasonably designed and has good practical application value. Attached Figure Description

[0011] Figure 1 This diagram illustrates the anti-detachment device for the water braid head of a coal mine drainage drilling rig.

[0012] Figure 2 A schematic diagram showing the assembled anti-detachment device for the water braid head of a coal mine drainage drilling rig.

[0013] In the diagram, 1-water braid head retaining ring, 2-zipper, 3-drill rod retaining device, 4-water braid head, 5-drill rod, 301-bearing, 302-pipe sleeve, 303-positioning screw, 304-positioning nut. Detailed Implementation

[0014] To enable those skilled in the art to better understand this utility model, the following description, in conjunction with the accompanying drawings, will provide a clearer and more complete account of the utility model.

[0015] This utility model provides a device for preventing the water braid head from detaching from a coal mine drainage drilling rig, including a water braid head retaining ring, a zipper, and a drill rod retaining device.

[0016] like Figure 1 As shown, one end of the zipper 2 is connected to the water braid head retaining ring 1, and the other end is connected to the drill rod retaining device 3; the water braid head retaining ring 1 is fitted onto the water braid head 4.

[0017] like Figure 1 As shown, the drill rod clamping device 3 includes a bearing 301, a sleeve 302, a positioning screw 303, and a positioning nut 304. One end of the sleeve 302 is fixedly connected to the inner sleeve of the bearing 301 and is coaxially arranged. The other end of the zipper 2 is connected to the outer sleeve of the bearing 301. A positioning through hole is opened on the side wall of the sleeve 302. The positioning nut 304 is welded at the positioning through hole. The positioning screw 303 is installed in the positioning nut 304. The sleeve 302 is fitted onto the drill rod 5 and its position is fixed by tightening the positioning screw 303.

[0018] like Figure 1 As shown, the sleeve 302 is a steel pipe. The side wall of the sleeve 302 has two symmetrical positioning through holes, and a positioning nut 304 is welded to each positioning through hole. Positioning screws 303 are symmetrically installed in the two positioning nuts 304.

[0019] like Figure 2 As shown, the drill rod clamping device 3 is installed on the drill rod 5 and is fixed by the upper and lower positioning screws 303 of the drill rod clamping device 3 tightening the drill rod 5.

[0020] During assembly, first install the anti-detachment device. First, weld the sleeve 302 to the inner sleeve of the bearing 301. Then, weld the positioning nut 304 into the positioning through holes on the upper and lower sides of the sleeve 302. Next, screw the positioning screw 303 into the positioning nut 304. Then, weld one end of the zipper 2 to the water braid head retaining ring 1 and the other end to the outer sleeve of the bearing 301 of the drill rod clamping device 3. This completes the installation of the anti-detachment device.

[0021] In use, first install the pre-installed anti-detachment device on the water braid head 4. First, unscrew the threaded part at the front of the water braid head 4, then install the water braid head retainer 1 on the water braid head 4, and tighten the threaded part again. Next, install the drill rod retaining device 3 on the drill rod 5, and tighten the upper and lower positioning screws 303 against the drill rod 5. When the water braid head 4 loosens or pops out, the zipper 2 can act as a restraint to prevent the water braid head 4 from being ejected.

[0022] This utility model describes a water braid head anti-detachment device for coal mine drainage drilling rigs. As a device to prevent the water braid head from suddenly popping out of the drill rod, it has the advantages of high safety and convenient installation. It greatly ensures worker safety and extends equipment life, demonstrating significant practical application value.

[0023] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.

Claims

1. A device for preventing the water braid head from detaching from a coal mine drainage drilling rig, characterized in that: Includes water braid head retainer (1), zipper (2), and drill rod retainer (3); One end of the zipper (2) is connected to the water braid head retainer (1), and the other end is connected to the drill rod retainer (3); the water braid head retainer (1) is fitted onto the water braid head (4); The drill rod clamping device (3) includes a bearing (301), a sleeve (302), a positioning screw (303), and a positioning nut (304). One end of the sleeve (302) is fixedly connected to the inner sleeve of the bearing (301) and is coaxially arranged. The other end of the zipper (2) is connected to the outer sleeve of the bearing (301). The side wall of the sleeve (302) has a positioning through hole. The positioning nut (304) is welded at the positioning through hole. The positioning screw (303) is installed inside the positioning nut (304). The sleeve (302) is fitted onto the drill rod (5) and its position is fixed by tightening the positioning screw (303).

2. The anti-detachment device for water braid head of a coal mine drainage drilling rig according to claim 1, characterized in that: The sleeve (302) is a steel pipe.

3. The anti-detachment device for water braid head of a coal mine drainage drilling rig according to claim 1, characterized in that: The sleeve (302) has two symmetrical positioning through holes on its side wall. A positioning nut (304) is welded to each positioning through hole, and positioning screws (303) are symmetrically installed inside the two positioning nuts (304).

4. The anti-detachment device for water braid head of a coal mine drainage drilling rig according to claim 1, characterized in that: The drill rod clamping device (3) is installed on the drill rod (5) and is fixed by the upper and lower positioning screws (303) of the drill rod clamping device (3) pressing the drill rod (5) against it.

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