CN219234140U

CN219234140U - Liquid breaking protection device for mining hydraulic saw

Info

Publication number: CN219234140U
Application number: CN202223248234.7U
Authority: CN
Inventors: 韩粟宏; 张鹏基; 方建厂; 张刚刚; 宋敏磊; 王林山; 曹孝军
Original assignee: Hebei Yunde Machinery Manufacturing Co ltd
Current assignee: Hebei Yunde Machinery Manufacturing Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-23
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a liquid breaking protection device for a mining hydraulic saw, which comprises a main valve body, wherein an unloading valve and a plurality of overflow valves are arranged on the main valve body, the unloading valve comprises a valve seat, a valve cover is arranged at the top of the valve seat, a flow passage is arranged in the valve seat, a sealing plug is fixedly connected to the bottom of the valve cover, a supporting block is arranged in the valve seat, a spring is arranged between the sealing plug and the supporting block, a valve rod is fixedly connected to the bottom of the supporting block, a plugging block is fixedly connected to the bottom of the valve rod, two sides of the valve cover are fixedly connected with vertical plates, a clamping plate is inserted on the vertical plates in a sliding manner, a clamping groove corresponding to the clamping plate is arranged on the valve seat, one end of the clamping plate is fixedly connected with a moving plate, a threaded rod is inserted on the moving plate in a threaded manner, one end of the threaded rod is rotatably connected with the vertical plate, and the liquid breaking protection device for the mining hydraulic saw can automatically control the liquid breaking protection device for the mining hydraulic saw by automatically judging the flow of cooling liquid.

Description

Liquid breaking protection device for mining hydraulic saw

Technical Field

The utility model relates to the technical field of coal mine industry, in particular to a mining hydraulic saw.

Background

Currently, mining hydraulic saws are mainly used for underground coal mine cutting metals. The device has the advantages of simple structure, low failure rate, single person use, easy operation and good appreciation by users. However, since the device is used in coal mine, sparks are inevitably generated during cutting operation. Open fire is forbidden in the pit, and particularly, a high-gas mine is absolutely impermissible, and the existing mining hydraulic saw often uses cooling liquid to pour out fire-extinguishing stars at saw blade cutting positions in a rain-spraying mode. This approach is very productive. However, if the cooling liquid is broken or insufficient, if the user does not stop the machine in time, the sparking is difficult to stop, and potential safety hazard is necessarily brought.

Disclosure of Invention

The utility model aims to provide a liquid breaking protection device for a mining hydraulic saw, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a mining hydraulic saw is with disconnected liquid protection device, includes the main valve body, be equipped with unloading valve and a plurality of overflow valve on the main valve body, the unloading valve includes the disk seat, the disk seat top is equipped with the valve gap, be equipped with the runner in the disk seat, valve gap bottom fixedly connected with sealing plug, be equipped with the supporting shoe in the disk seat, be equipped with the spring between sealing plug and the supporting shoe, the bottom fixedly connected with valve rod of supporting shoe, the bottom fixedly connected with shutoff piece of valve rod, the equal fixedly connected with riser in both sides of valve gap, the cardboard has been inserted in the slip on the riser, be equipped with the draw-in groove that corresponds with the cardboard on the disk seat, the one end fixedly connected with kinematic plate of cardboard, the screw thread is inserted on the kinematic plate and is equipped with the threaded rod, the one end and the riser rotation of threaded rod are connected.

Preferably, the unloading valve and the overflow valve are both provided with external threads, the main valve body is provided with a screw, and the unloading valve, the overflow valve and the main valve body are connected through threads.

Preferably, the main valve body is mounted on a hydraulic oil path of the hydraulic saw.

Preferably, the O-shaped ring is fixedly sleeved on the plugging block.

Preferably, one end of the threaded rod is fixedly connected with a rotating block, and anti-skid patterns are arranged on the outer wall of the rotating block.

Preferably, the clamping plate is arranged in a rectangular structure.

Compared with the prior art, the utility model has the beneficial effects that:

according to the hydraulic saw liquid breaking protection device for the mine, the main valve body is arranged on the hydraulic oil path and is connected with pressure oil for working, when the flow rate of cooling liquid is small or no cooling liquid exists, the pressure oil path of the rotary motor is cut off under the action of the unloading valve, the hydraulic saw for the mine stops working, and the overflow valve can avoid the overhigh internal pressure;

according to the liquid breaking protection device for the mining hydraulic saw, the moving plate is driven to move by rotating the threaded rod, the moving plate drives the clamping plate to slide on the vertical plate, so that the clamping plate is separated from the clamping groove on the valve seat, and the separation valve cover can be convenient for replacing the spring in the valve seat;

the liquid breaking protection device for the mining hydraulic saw can automatically control the parking of the mining hydraulic saw by automatically judging the flow of the cooling liquid.

Drawings

Fig. 1 is a schematic structural view of a hydraulic breakage protection device for a mining hydraulic saw;

FIG. 2 is a schematic view of the hydraulic pressure of the main valve of the hydraulic fracture protection device for mining hydraulic saw;

FIG. 3 is a schematic diagram of the internal structure of an unloading valve of the hydraulic mining saw hydraulic breakage protection device;

fig. 4 is an enlarged view of a portion a of a hydraulic breakage protection device for a mining hydraulic saw according to the present utility model.

In the figure: 1. a main valve body; 2. an unloading valve; 3. an overflow valve; 4. a valve seat; 5. a valve cover; 6. a sealing plug; 7. a support block; 8. a spring; 9. a valve stem; 10. a block; 11. a vertical plate; 12. a clamping plate; 13. a motion plate; 14. a threaded rod; 15. and (5) rotating the block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the utility model provides a mining hydraulic saw is with disconnected liquid protection device, including main valve body 1, be equipped with unloading valve 2 and a plurality of overflow valve 3 on the main valve body 1, concretely speaking, main valve body 1 installs on the hydraulic oil circuit, connects the pressure oil and works, cuts off rotary motor pressure oil circuit under unloading valve 2 effect when coolant flow is less or no coolant, mining hydraulic saw stops working, overflow valve 3 can avoid the internal pressure too high; the unloading valve 2 comprises a valve seat 4, a valve cover 5 is arranged at the top of the valve seat 4, a flow passage is arranged in the valve seat 4, a sealing plug 6 is fixedly connected to the bottom of the valve cover 5, a supporting block 7 is arranged in the valve seat 4, a spring 8 is arranged between the sealing plug 6 and the supporting block 7, a valve rod 9 is fixedly connected to the bottom of the supporting block 7, a plugging block 10 is fixedly connected to the bottom of the valve rod 9, a vertical plate 11 is fixedly connected to two sides of the valve cover 5, a clamping plate 12 is slidably inserted on the vertical plate 11, a clamping groove corresponding to the clamping plate 12 is arranged on the valve seat 4, a moving plate 13 is fixedly connected to one end of the clamping plate 12, a threaded rod 14 is threadedly inserted on the moving plate 13, one end of the threaded rod 14 is rotatably connected with the vertical plate 11, and specifically speaking, the moving plate 13 is driven by the rotating threaded rod 14 to move, the clamping plate 12 is driven to slide on the vertical plate 11, so that the clamping plate is separated from the clamping groove on the valve seat 4, and the spring 8 in the valve seat 4 can be conveniently replaced by the separating the valve cover 5.

Referring to fig. 2, port p is connected with pressure oil, port a is connected with an oil inlet of a rotary motor of the mining hydraulic saw, port T is connected with a main oil return pipeline, port X is connected with a cooling liquid pipeline of the mining hydraulic saw, when the flow rate of cooling liquid is small or no cooling liquid is present (at the moment, the pressure of port X is lower than 10 bar), an unloading valve 2 cuts off the pressure oil way of the rotary motor, and the mining hydraulic saw stops working

In the embodiment, external threads are arranged on the unloading valve 2 and the overflow valve 3, a screw port is arranged on the main valve body 1, and the unloading valve 2, the overflow valve 3 and the main valve body 1 are connected through threads, so that the unloading valve is convenient to assemble and disassemble; the main valve body 1 is arranged on a hydraulic oil path of the hydraulic saw; an O-shaped ring is fixedly sleeved on the plugging block 10, so that the sealing effect is improved; one end of the threaded rod 14 is fixedly connected with a rotating block 15, and anti-skid patterns are arranged on the outer wall of the rotating block 15, so that the threaded rod 14 can be conveniently rotated; the clamping plate 12 is arranged in a rectangular structure.

Working principle: firstly, the main valve body 1 is arranged on a hydraulic oil path and is connected with pressure oil for working, when the flow of cooling liquid is small or no cooling liquid exists, the pressure oil path of the rotary motor is cut off under the action of the unloading valve 2, the mining hydraulic saw stops working, the overflow valve 3 can avoid the internal pressure from being too high, the threaded rod 14 is rotated to drive the moving plate 13 to move, the moving plate 13 drives the clamping plate 12 to slide on the vertical plate 11 so as to separate the clamping plate from the clamping groove on the valve seat 4, and the separation valve cover 5 can facilitate the replacement of the spring 8 in the valve seat 4.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a mining hydraulic saw is with breaking liquid protection device, includes main valve body (1), its characterized in that: be equipped with unloading valve (2) and a plurality of overflow valve (3) on main valve body (1), unloading valve (2) are including disk seat (4), disk seat (4) top is equipped with valve gap (5), be equipped with the runner in disk seat (4), valve gap (5) bottom fixedly connected with sealing plug (6), be equipped with supporting shoe (7) in disk seat (4), be equipped with spring (8) between sealing plug (6) and supporting shoe (7), the bottom fixedly connected with valve rod (9) of supporting shoe (7), the bottom fixedly connected with shutoff piece (10) of valve rod (9), equal fixedly connected with riser (11) in both sides of valve gap (5), slide on riser (11) and insert and be equipped with cardboard (12), be equipped with the draw-in groove that corresponds with cardboard (12) on disk seat (4), the one end fixedly connected with kinematic plate (13) of cardboard (12), the last screw thread of threaded rod (14) is inserted and is connected with riser (11).

2. The hydraulic mining saw hydraulic breakage protection device according to claim 1, wherein: external threads are arranged on the unloading valve (2) and the overflow valve (3), a screw port is arranged on the main valve body (1), and the unloading valve (2) is connected with the overflow valve (3) and the main valve body (1) through threads.

3. The hydraulic mining saw hydraulic breakage protection device according to claim 1, wherein: the main valve body (1) is arranged on a hydraulic oil path of the hydraulic saw.

4. The hydraulic mining saw hydraulic breakage protection device according to claim 1, wherein: an O-shaped ring is fixedly sleeved on the plugging block (10).

5. The hydraulic mining saw hydraulic breakage protection device according to claim 1, wherein: one end of the threaded rod (14) is fixedly connected with a rotating block (15), and anti-skid patterns are arranged on the outer wall of the rotating block (15).

6. The hydraulic mining saw hydraulic breakage protection device according to claim 1, wherein: the clamping plate (12) is arranged in a rectangular structure.