阅读说明：本技术 采煤机破碎装置 (Crushing device of coal mining machine ) 是由 朱信平 周常飞 李辉 张斌 胡俊 宋相坤 刘凯 张晓永 王广 黄秋来 贾思然 于 2021-08-24 设计创作，主要内容包括：本发明涉及一种采煤机破碎装置,包括破碎部、支撑臂和调高油缸,破碎部可拆卸固定连接在支撑臂的头部,调高油缸的一端铰接在支撑臂的中部,所述破碎部包括壳体和安装在壳体上的电机、传动系统以及破碎滚筒,电机和传动系统位于破碎滚筒的筒体内腔,电机的输出轴与传动系统的输入端同轴连接,传动系统的输出端与破碎滚筒同轴固定连接,所述壳体为铸件,所述支撑臂采用锻焊工艺制成。本发明强度更高,而且木模的数量更少,方便管理。(The invention relates to a crushing device of a coal mining machine, which comprises a crushing part, a supporting arm and a heightening oil cylinder, wherein the crushing part is detachably and fixedly connected to the head part of the supporting arm, one end of the heightening oil cylinder is hinged to the middle part of the supporting arm, the crushing part comprises a shell, and a motor, a transmission system and a crushing roller which are arranged on the shell, the motor and the transmission system are positioned in an inner cavity of the crushing roller, an output shaft of the motor is coaxially connected with an input end of the transmission system, an output end of the transmission system is coaxially and fixedly connected with the crushing roller, the shell is a casting, and the supporting arm is manufactured by adopting a forge welding process. The invention has higher strength, less wood pattern quantity and convenient management.)

1. The utility model provides a coal-winning machine breaker which characterized in that: including crushing portion, support arm and heightening cylinder, the head of fixed connection at the support arm can be dismantled to crushing portion, and the one end of heightening cylinder articulates the middle part at the support arm.

2. The shearer breaker apparatus of claim 1, wherein: the crushing part comprises a shell, and a motor, a transmission system and a crushing roller which are arranged on the shell, wherein the motor and the transmission system are positioned in an inner cavity of the crushing roller, an output shaft of the motor is coaxially connected with an input end of the transmission system, and an output end of the transmission system is coaxially and fixedly connected with the crushing roller.

3. The shearer breaker apparatus of claim 2, wherein: the shell is also provided with a protective cover, the protective cover extends along the axial direction of the roller, and the protective cover covers the outer side of part of crushing teeth on the crushing roller.

4. The shearer breaker apparatus of claim 2, wherein: the housing is a casting.

5. The shearer breaker apparatus of claim 3, wherein: the housing is a casting.

6. The shearer breaker apparatus of claim 1, 2, 3, 4, or 5, wherein: the support arm is made using a forging and/or forge welding process.

7. The shearer breaker apparatus of claim 1, 2, 3, 4, 5 or 6, wherein: the head of support arm is equipped with first interface structure, and the root of casing is equipped with the second interface structure, and first interface structure mutually supports and fixed connection with the second interface structure.

8. The shearer breaker apparatus of claim 7, wherein: the first interface structure comprises an upper double-lug ear seat and a lower double-lug ear seat, the second interface structure comprises an upper single-lug ear seat and a lower single-lug ear seat, or the first interface structure comprises an upper single-lug ear seat and a lower single-lug ear seat, the second interface structure comprises an upper double-lug ear seat and a lower double-lug ear seat, and the two single-lug ear seats are matched with the two double-lug ear seats in a one-to-one mode and connected through a mounting pin shaft.

9. The shearer breaker apparatus of claim 8, wherein: the root of the supporting arm and the other end of the heightening oil cylinder are hinged with the first supporting seat and the second supporting seat respectively.

Technical Field

The invention relates to a crushing device which is arranged on a coal mining machine and is used for crushing large coal and gangue.

Background

The crushing device of the coal mining machine is arranged on the coal mining machine and used for crushing large coal or gangue on a coal face so as to avoid the coal blocks from being blocked at a coal passing port at the lower part of a machine body of the coal mining machine. For the mining of medium-thick coal seams, especially for working faces which are easy to form large hard coal and gangue in the coal mining process, the crushing device is often an indispensable large part of a coal mining machine.

Due to the structural particularity of the coal mining machine, the installation position and the space of the crushing device are strictly limited, the root part of an arm support of the crushing device and an oil cylinder supporting point are generally installed on the machine body, the arm support must be designed to be long and long so as to penetrate through a long and narrow channel between a rocker motor and a cable groove, and the crushing part of the crushing device is suspended in the space between the straight body part of the rocker of the coal mining machine and the cable groove for crushing. At present, the crushing devices of coal mining machines at home and abroad are almost the same in structural form, and basically adopt an integral cantilever structure, namely, a crushing motor, a transmission system and a roller are directly installed on a cantilever frame, the cantilever frame is generally a casting part due to the complexity of the integral cantilever structure, and the root of the cantilever frame is often a weak point and is easy to break along with the lengthening of the cantilever frame. In addition, the sizes of the arm supports of the crushing devices with different specifications are different, so that the types of wood molds for casting the arm supports are various, and resource waste and management difficulty are caused.

Disclosure of Invention

The invention aims to provide a crushing device of a coal mining machine, which has high strength, small quantity of wood moulds for processing and convenient management.

The main technical scheme of the invention is as follows:

the utility model provides a coal-winning machine breaker, includes crushing portion, support arm and heightening hydro-cylinder, and fixed connection can be dismantled at the head of support arm to crushing portion, and the one end of heightening hydro-cylinder articulates at the middle part of support arm.

The crushing part comprises a shell, and a motor, a transmission system and a crushing roller which are arranged on the shell, wherein the motor and the transmission system are positioned in an inner cavity of the crushing roller, an output shaft of the motor is coaxially connected with an input end of the transmission system, and an output end of the transmission system is coaxially and fixedly connected with the crushing roller.

The shell is also provided with a protective cover, the protective cover extends along the axial direction of the roller, and the protective cover covers the outer side of part of crushing teeth on the crushing roller.

The housing is preferably cast.

The support arm is preferably made using a forging and/or forge welding process.

The head of support arm is equipped with first interface structure, and the root of casing is equipped with the second interface structure, and first interface structure mutually supports and fixed connection with the second interface structure.

The first interface structure comprises an upper double-lug ear seat and a lower double-lug ear seat, the second interface structure comprises an upper single-lug ear seat and a lower single-lug ear seat, or the first interface structure comprises an upper single-lug ear seat and a lower single-lug ear seat, the second interface structure comprises an upper double-lug ear seat and a lower double-lug ear seat, and the two single-lug ear seats are matched with the two double-lug ear seats in a one-to-one manner and are respectively connected with the two double-lug ear seats through mounting pins.

The root of the supporting arm and the other end of the heightening oil cylinder are hinged with the first supporting seat and the second supporting seat respectively.

The invention has the beneficial effects that:

the mutually independent crushing parts and the supporting arms are detachably and fixedly connected to form the arm support, and the number of the wood formers is greatly reduced by standardizing the crushing parts; the strength of the supporting arm and even the arm support is greatly improved by manufacturing the supporting arm by using a forging process.

Drawings

FIG. 1 is a front view of one embodiment of the present invention;

fig. 2 is a top view of the embodiment shown in fig. 1.

Reference numerals: 1. a first support base; 2. a support arm; 3. a connecting structure; 4. a crushing section; 4-1. a shield; 4-2. a transmission system; 4-3, crushing a roller; 4-4. a motor; 4-5, a shell; 5. heightening the oil cylinder; 6. a second support seat;

Detailed Description

The invention discloses a crushing device of a coal mining machine, which comprises a crushing part 4, a supporting arm 2 and a heightening oil cylinder 5, wherein the crushing part is detachably and fixedly connected to the head part of the supporting arm, and one end of the heightening oil cylinder is hinged to the middle part of the supporting arm through a hinge seat. When the supporting arm is arranged on one side of the body of the coal mining machine, the root of the supporting arm and the other end of the heightening oil cylinder are respectively hinged with the body of the coal mining machine. The heightening oil cylinder stretches and retracts to drive the supporting arm and the crushing part to swing up and down. The crushing part and the supporting arm are independent parts, and the crushing part and the head part of the supporting arm can be fixedly connected through a connecting structure 3.

The crushing part comprises a shell 4-5, and a motor 4-4, a transmission system 4-2 and a crushing roller 4-3 which are arranged on the shell, wherein the motor and the transmission system are positioned in the inner cavity of the crushing roller, the output shaft of the motor is coaxially connected with the input end of the transmission system, and the output end of the transmission system is coaxially and fixedly connected with the crushing roller. The motor drives the crushing roller to rotate through the transmission system, and then the crushing operation is realized by combining the up-and-down swing of the crushing part.

The shell is also provided with a protective cover 4-1 which extends along the axial direction of the roller and covers the outer side of part of crushing teeth on the crushing roller so as to prevent the crushed coal blocks and gangue from splashing outwards. The shell size is designed according to the motor, transmission system, crushing drum and shield.

The housing is preferably cast. Furthermore, the crushing part can be subjected to standardized design, the number of the wood moulds is greatly reduced, the cost is saved, and the management is facilitated.

The support arm is preferably manufactured by adopting a forging and/or forge welding process, and compared with the traditional arm support formed by casting, the strength of the support arm is greatly increased. The length of the support arm is designed according to the matching condition of the support arm and other large parts of the coal mining machine.

The head of support arm is equipped with the first interface structure who is used for connecting crushing portion, and the root of casing is equipped with the second interface structure who is used for connecting the support arm, and first interface structure and second interface structure mutually support and fixed connection. The first interface structure and the second interface structure form the connecting structure.

In fig. 2, the first interface structure may include two upper and lower binaural ear seats, and correspondingly the second interface structure includes two upper and lower monaural ear seats, or the first interface structure may also include two upper and lower monaural ear seats, and correspondingly the second interface structure includes two upper and lower binaural ear seats, and the two monaural ear seats are in one-to-one fit with the two binaural ear seats and are respectively connected by a mounting pin.

The root of the supporting arm and the other end of the heightening oil cylinder can be hinged with the first supporting seat 1 and the second supporting seat 6 respectively. When the crushing device of the coal mining machine is arranged on the machine body of the coal mining machine, the first supporting seat and the second supporting seat are respectively fixed on the machine body of the coal mining machine.