CN217050218U

CN217050218U - Telescopic sleeve type coal mining working end safety protection device

Info

Publication number: CN217050218U
Application number: CN202220683050.4U
Authority: CN
Inventors: 张立洋; 王光淇; 蔡木喜; 魏文辉; 孙文峰; 潘跃辉; 玄长远; 赵慧; 陈倩; 刘贤忠
Original assignee: Yanzhou Coal Mining Erdos Energy Chemical Co ltd; Yankuang Energy Group Co Ltd
Current assignee: Yanzhou Coal Mining Erdos Energy Chemical Co ltd; Yankuang Energy Group Co Ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-07-26
Anticipated expiration: 2032-03-25

Abstract

The utility model relates to a flexible bushing type coal mining work end safety device. The existing safety protection chain is often in a loose state, the protection effect is poor, and therefore, the safety protection device for the coal mining working end comprises a chain, the front end of the chain is provided with a hook, a telescopic pipe, a fixed pulley, a pull rope and a balancing weight, the telescopic pipe comprises an inner pipe and an outer pipe, pin columns and inner pin columns are respectively arranged at two ends of the inner pipe, the outer circumference of the inner pipe is exposed at two ends of each pin column, the rear end of the chain is fixed on the pin columns, the other end of the outer pipe is provided with two parallel lug parts, the lug parts are provided with opposite through holes, a rotating shaft of the fixed pulley is arranged in the through holes of the adjacent lug parts in a penetrating manner, one end of the pull rope penetrates into the outer pipe and is tied to the inner pin column at one end of the inner pipe, the other end of the pull rope crosses a ring groove of the fixed pulley and then is tied to the balancing weight, and the outer pipe is fixed on a gap bridge of the coal mining working face end. The utility model discloses simple structure, convenient to use, automatic flexible is fit for the colliery and uses in the working face down.

Description

Telescopic sleeve type coal mining working end safety protection device

Technical Field

The utility model relates to a flexible bushing type coal mining operation end safety device.

Background

At present, a transfer conveyor is commonly used at the end of a mine coal face for transferring coal, and according to the regulation of coal mine safety regulations, when the transfer conveyor of the coal face is provided with a crusher, a safety protection device is required. The standard management system for coal mine safety production requires that the exposed part of the equipment operation is a reliable safety protection facility for the places where people pass, such as a coal chute, an upper opening of a coal bunker and the like. The coal face end safety protection facility has the function that a safety guardrail is adopted for carrying out reliable safety protection on a dangerous area of the reversed loader to prevent and control personnel from entering the dangerous area by mistake.

The mode of establishing the protection chain is hung to current universal adoption carries out safety protection, because of production needs often to push away preceding, rear portion scraper conveyor, leads to this regional open width uncertain, hangs the safety protection chain of establishing and often is in the lax state, and the protecting effect is relatively poor, because of this safety protection chain needs the manual work to adjust, has increased personnel and has been close the chance in danger area, has the potential safety hazard of hurting people in falling into the elevating conveyor.

Disclosure of Invention

The to-be-solved technical problem of the utility model is how to solve current safety protection chain and often be in lax state, the poor defect of protecting effect provides a flexible bushing type coal mining working end safety device.

In order to solve the technical problem, the safety protection device for the telescopic coal mining working end comprises a chain, wherein the front end of the chain is provided with a hook, the chain can be hooked on a matched front conveyor through the hook, the safety protection device also comprises a telescopic sleeve, a fixed pulley, a pull rope and a balancing weight, the telescopic sleeve comprises an inner pipe and an outer pipe, two ends of the inner pipe are respectively provided with a pin column and an inner pin column, two ends of the pin column are exposed out of the outer circumference of the inner pipe, the rear end of the chain is fixed on the pin column, two ends of the inner pin column are connected with the inner wall of the inner pipe and are not exposed, the end part of the inner pipe where the inner pin column is arranged is inserted into one end of the outer pipe, the other end of the outer pipe is provided with a downward open slot, side walls at two sides of the open slot outwards extend to form two parallel lug parts, the lug parts are provided with opposite through holes, the center of the fixed pulley is provided with a rotating shaft, the outer circumference of the fixed pulley is provided with an annular groove, and the rotating shaft is respectively inserted into the through holes of the adjacent lug parts, the reason is tangent with inner tube axial lead on the annular, stay cord one end penetrates the outer tube to on the inner pin post of inner tube one end, the other end strides across behind the annular of fixed pulley, on the balancing weight, the outer tube is fixed on the adapted coal face end gap bridge.

When the front conveyor moves forwards, the counterweight block is pulled through the hook, the chain, the inner pipe and the pull rope, the inner pipe extends forwards, the telescopic pipe is automatically lengthened, when the front conveyor moves backwards, the inner pipe is pulled back into the outer pipe under the action of gravity of the counterweight block, and therefore the telescopic pipe is automatically shortened. The telescopic device is simple in structure, convenient to stretch and reliable in operation.

Preferably, the outer pipe is provided with two rubber sleeves, each rubber sleeve is provided with a fixing hook, and the rubber sleeves are fixed on the end bridge passing handrail of the matched coal face through the fixing hooks. By the design, the fixing is convenient.

The telescopic coal mining working end safety protection device is simple in structure, convenient to use, automatic in stretching and suitable for being used on a coal mine underground working face.

Drawings

The telescopic coal mining working end safety protection device is further described by combining the attached drawings as follows:

FIG. 1 is a schematic perspective view of the safety protection device for a telescopic coal mining working end;

fig. 2 is a schematic sectional view of the inner pipe shown in fig. 1, which is an outer pipe, a fixed pulley, and the like, partially cut away (a quarter of the vertical plane and a horizontal plane passing through the axial center line of the inner pipe).

In the figure: 1 is a chain, 2 is a hook, 3 is a telescopic sleeve, 31 is an inner pipe, 32 is an outer pipe, 33 is a pin, 34 is an inner pin, 35 is a lug part, 36 is a through hole, 4 is a fixed pulley, 41 is a rotating shaft, 42 is a ring groove, 5 is a pull rope, 6 is a counterweight, 7 is a rubber sleeve, and 8 is a fixed hook.

Detailed Description

The first implementation mode comprises the following steps: as shown in fig. 1-2, the safety device for telescopic coal mining working end of the present invention comprises a chain 1, a hook 2 is provided at the front end of the chain 1, and can be hooked on a front conveyor (not shown in the figure) through the hook 2, and further comprises a telescopic tube 3, a fixed pulley 4, a pull rope 5 and a counterweight 6, wherein the telescopic tube 3 comprises an inner tube 31 and an outer tube 32, two ends of the inner tube 31 are respectively provided with a pin 33 and an inner pin 34, two ends of the pin 33 are exposed out of the outer circumference of the inner tube 31, the rear end of the chain 1 is fixed on the pin 33, two ends of the inner pin 34 are connected with the inner wall of the inner tube 31, and are not exposed, and the end of the inner tube where the inner pin 33 is located is inserted into one end of the outer tube 32, the other end of the outer tube 31 is provided with a downward open slot, the side walls at two sides extend outward to form two parallel lugs 35, and the lugs are provided with opposite through holes 36, the fixed pulley 4 center is equipped with pivot 41, and its periphery is opened has annular 42, the through-hole 36 of adjacent lug portion 35 is worn to establish respectively by pivot 41, the reason is tangent with inner tube 31 axial lead on the annular 42, stay cord 5 one end penetrates outer tube 32, and is tied on the interior pin 34 of inner tube 31 one end, and the other end strides across behind the annular 42 of fixed pulley 4, is tied on balancing weight 6, outer tube 32 is fixed on the adapted coal face end crosses the bridge (not shown in the figure).

The outer pipe 32 is provided with two rubber sleeves 7, each rubber sleeve is provided with a fixing hook 8, and the rubber sleeves are fixed on a railing (not shown in the figure) of a matched coal face end gap bridge through the fixing hooks 8.

Claims

1. The utility model provides a flexible bushing type coal mining working end safety device, includes the chain, and the chain front end is equipped with the couple to this couple of accessible hook is hung on the anterior conveyer of adapted, its characterized in that: the chain-driven chain-driving mechanism further comprises a telescopic sleeve, a fixed pulley, a pull rope and a balancing weight, wherein the telescopic sleeve comprises an inner pipe and an outer pipe, a pin column and an inner pin column are respectively arranged at two ends of the inner pipe, two ends of the pin column are exposed out of the outer circumference of the inner pipe, the rear end of the chain is fixed on the pin column, two ends of the inner pin column are connected with the inner wall of the inner pipe and are not exposed, the end part of the inner pipe where the inner pin column is arranged is inserted into one end of the outer pipe, a downward open slot is arranged at the other end of the outer pipe, side walls at two sides of the open slot are outwards extended to form two parallel lug parts, the lug parts are provided with opposite through holes, a rotating shaft is arranged at the center of the fixed pulley, annular grooves are arranged on the outer circumference of the fixed pulley, the rotating shaft is respectively arranged in the through holes of the adjacent lug parts, the upper edge of the annular grooves is tangent to the axial lead of the inner pipe, one end of the pull rope penetrates through the outer pipe and is tied on the inner pin column at one end of the inner pipe, the other end of the fixed pulley crosses over the annular groove of the fixed pulley, the outer pipe is fixed on a matched coal face end gap bridge.

2. The telescoping tube coal mining working head safety shield apparatus of claim 1, wherein: the outer pipe is provided with two rubber sleeves, each rubber sleeve is provided with a fixing hook, and the rubber sleeves are fixed on the end bridging handrail of the matched coal face through the fixing hooks.