CN220866331U

CN220866331U - Conveniently dismantle sprocket assembly's tail

Info

Publication number: CN220866331U
Application number: CN202322777314.XU
Authority: CN
Inventors: 张少伟; 王凤鲜; 李欣欣
Original assignee: Shanxi Coal Machinery Equipment Manufacturing Co ltd; Shanxi Coal Mining Machinery Manufacturing Co ltd
Current assignee: Shanxi Coal Machinery Equipment Manufacturing Co ltd; Shanxi Coal Mining Machinery Manufacturing Co ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-04-30
Anticipated expiration: 2033-10-17

Abstract

The utility model relates to the technical field of scraper conveyors, in particular to a tail convenient for disassembling a chain wheel assembly, which comprises a tail frame, a pressing block and an embedded block, wherein the pressing block and the embedded block are detachably arranged on the tail frame; the left upper side of the tail frame is provided with a notch, and the width of the notch is larger than the diameter of the mounting hole. The tail frame is matched with the pressing block, the right-angle structure design is adopted, and the pressing block is fastened in the horizontal direction and the vertical direction, so that the resultant force is reversed 45 degrees to the tail frame, and the effect of pressing the chain wheel is achieved. The embedded block adopts the same-size design of the inner circle and the circular hole assembled on the tail frame, and the pointed point of the embedded block reaches the position of the circular arc lower quadrant point of the tail frame after assembly, so that the chain wheel assembly can be loosened rapidly after the embedded block is disassembled.

Description

Conveniently dismantle sprocket assembly's tail

Technical Field

The utility model relates to the technical field of scraper conveyors, in particular to a tail convenient for disassembling a chain wheel assembly.

Background

The tail frame assembly belongs to an important part of the scraper conveyor and is also a part of the power composition of the scraper conveyor. The main functions are as follows: 1. the chain wheel assembly is connected with the driving part and drives the whole scraper chain to run; 2. the purpose of auxiliary chain tightening is achieved through the telescopic function of the tail. At present, a sprocket of a conventional tail frame needs to be disassembled and assembled from the end face of the tail frame (as shown in fig. 1), the installation requirements of the sprocket and the tail frame are close fit, disassembly is difficult after a period of use, and the sprocket can only be disassembled along the end face direction of the tail frame, so that the sprocket is not easy to replace due to the limitation of underground space, long-time use corrosion and other reasons.

Accordingly, there is a need for improvements over the prior art.

Disclosure of utility model

In order to overcome the defects in the prior art, the tail convenient for disassembling the chain wheel assembly is provided.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a conveniently dismantle tail of sprocket assembly, includes tail frame, briquetting and abase, briquetting, abase all can dismantle and set up on tail frame, briquetting and abase are provided with convex shaping face I, shaping face II and shaping face III respectively, shaping face I, shaping face II and shaping face III connect gradually and form the mounting hole that can supply the sprocket shaft to install;

The range of the central angle alpha corresponding to the molding surface I is 90 degrees less than alpha less than 180 degrees, the range of the central angle beta corresponding to the molding surface II is 90 degrees less than beta less than 180 degrees, and the central angle corresponding to the molding surface III is gamma, alpha+gamma is more than 180 degrees;

The upper left side of the tail frame is provided with a notch, the width of the notch is larger than the diameter of the mounting hole, the insert is arranged at one end of the notch and enables the molding surface III to be in butt joint with the molding surface I, and the pressing block is arranged on the notch and fixedly connected with the tail frame.

Preferably, the embedded block comprises a forming part and a mounting part which are fixedly connected, the mounting part is arranged at one end of the forming part, a through threaded hole is formed in the end face, close to the pressing block, of the mounting part, and the mounting part is fixedly connected with the tail frame through a bolt;

The thickness of the forming part decreases in a direction away from the mounting part.

Preferably, the central angle beta corresponding to the molding surface II is less than or equal to 120 degrees, and the lower quadrant of the mounting hole is positioned on the molding surface III.

Preferably, the pressing block is connected with the tail frame through a bolt, the included angle of two connecting surfaces of the pressing block is 90 degrees, and the included angle of an angular bisector of the central angle corresponding to the molding surface II and the horizontal line is 45 degrees.

Preferably, the end face of the mounting part, which is close to the pressing block, is abutted against the pressing block.

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

The tail frame is matched with the pressing block, the right-angle structure design is adopted, and the pressing block is fastened in the horizontal direction and the vertical direction, so that the resultant force is reversed 45 degrees to the tail frame, and the effect of pressing the chain wheel is achieved. The embedded block adopts the same-size design of the inner circle and the circular hole assembled on the tail frame, and the pointed point of the embedded block reaches the position of the circular arc lower quadrant point of the tail frame after assembly, so that the chain wheel assembly can be loosened rapidly after the embedded block is disassembled. The chain wheel disassembly and assembly direction of the traditional tail structure is changed by the tail structure, and the chain wheel can be used for a long time underground by matching with the embedded block structure, and the chain wheel can be quickly loosened after the embedded block is disassembled, so that the chain wheel is easy to disassemble and replace no matter the chain wheel is rusted or mixed with the chain wheel to be squeezed out.

Drawings

The following detailed description of the utility model will be given with reference to the accompanying drawings.

FIG. 1 is a schematic view of a prior art tail sprocket assembly disassembled;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is an exploded view of the present utility model;

FIG. 4 is a schematic diagram of a briquette structure;

Fig. 5 is a schematic block structure.

In the figure: 1-machine tail frame, 1.1-shaping surface I, 1.2-notch, 2-briquetting, 2.1-shaping surface II, 3-slug, 3.1-shaping surface III, 3.2-shaping portion, 3.3-installation portion, 3.4-screw hole, 4-installation hole, 5-sprocket assembly.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, the tail of the sprocket assembly is convenient to detach, and the chain assembly comprises a tail frame 1, a pressing block 2 and an embedded block 3, wherein the pressing block 2 and the embedded block 3 are all detachably arranged on the tail frame 1, a notch 1.2 is formed in the upper left side of the tail frame 1, and the width of the notch 1.2 is larger than the diameter of a shaft or the diameter of a mounting hole 4 of a sprocket shaft, so that the sprocket assembly can be detached from the notch. The slug 3 is arranged at one end of the notch 1.2, and the pressing block 2 is arranged on the notch 1.2 and fixedly connected with the tail frame 1.

The tail frame 1, the pressing block 2 and the embedded block 3 are respectively provided with a circular arc-shaped molding surface I1.1, a molding surface II 2.1 and a molding surface III 3.1, and a mounting hole 4 for mounting a chain wheel shaft is formed by sequentially butting the molding surface I1.1, the molding surface II 2.1 and the molding surface III 3.1.

The range of the central angle alpha corresponding to the molding surface I1.1 is 90 degrees less than alpha less than 180 degrees, so that after the pressing block 2 and the embedded block 3 are removed, the contact angle between the chain wheel shaft and the tail frame is less than 180 degrees, and the chain wheel assembly is convenient to detach from the tail frame, and the disassembly is realized.

Setting the central angle corresponding to the molding surface III 3.1 as gamma, the alpha+gamma should be larger than 180 degrees, so that the contact angle between the chain wheel shaft and the tail frame as well as between the chain wheel shaft and the chain wheel block is larger than 180 degrees after the chain block is installed, and reliable limiting of the chain wheel assembly is realized. Preferably, the lower quadrant of the mounting hole 4 is located on the molding surface III 3.1, and the sprocket assembly can be easily removed after the insert 3 is removed.

The range of the central angle beta corresponding to the molding surface II 2.1 is 90 degrees less than beta less than 180 degrees, and preferably, the central angle beta corresponding to the molding surface II 2.1 is less than or equal to 120 degrees.

For the convenience of installing the embedded block and ensuring that the width of the notch 1.2 is greater than the shaft diameter of the sprocket shaft, the embedded block 3 comprises a forming part 3.2 and a mounting part 3.3 which are fixedly connected, the embedded block 3 is disassembled and assembled in a side-mounted mode, a through threaded hole 3.4 is formed in the end face, close to the pressing block 2, of the mounting part 3.3, the mounting part 3.3 is fixedly connected with the tail frame 1 through a bolt, the end face, close to the pressing block 2, of the mounting part 3.3 is abutted against the pressing block 2, the forming part 3.2 is arranged on one side of the mounting part 3.3, and the thickness of the forming part 3.2 in the direction away from the mounting part 3.3 is gradually decreased.

The briquetting 2 is connected with the tail frame 1 through the bolt, and two connection surfaces of briquetting 2 are horizontal plane and vertical face respectively, and the angle bisector of the corresponding central angle of molding face II 2.1 is 45 with the horizontal line contained angle to make resultant force reverse 45 to the tail frame, in order to reach the effect of compressing tightly the sprocket.

The utility model is matched with the embedded block structure, so that the chain wheel used for a long time in the pit can be quickly loosened after the embedded block is disassembled no matter because of rust or mingled with the chain wheel to be squeezed out, and the chain wheel is easy to disassemble and replace.

The preferred embodiments of the present utility model have been described in detail, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model, and the various changes are included in the scope of the present utility model.

Claims

1. The utility model provides a conveniently dismantle tail of sprocket assembly which characterized in that: the chain wheel comprises a tail frame (1), a pressing block (2) and an embedded block (3), wherein the pressing block (2) and the embedded block (3) are detachably arranged on the tail frame (1), the pressing block (2) and the embedded block (3) are respectively provided with a circular arc-shaped molding surface I (1.1), a circular arc-shaped molding surface II (2.1) and a circular arc-shaped molding surface III (3.1), and the molding surfaces I (1.1), the circular arc-shaped molding surface II (2.1) and the circular arc-shaped molding surface III (3.1) are sequentially connected to form a mounting hole (4) for the installation of a chain wheel shaft;

The range of a central angle alpha corresponding to the molding surface I (1.1) is 90 degrees < alpha < 180 degrees, the range of a central angle beta corresponding to the molding surface II (2.1) is 90 degrees < beta < 180 degrees, and the central angle corresponding to the molding surface III (3.1) is gamma, alpha+gamma is more than 180 degrees;

The left upper side of the tail frame (1) is provided with a notch (1.2), the width of the notch (1.2) is larger than the diameter of the mounting hole (4), the insert (3) is arranged at one end of the notch (1.2) and enables the molding surface III (3.1) to be in butt joint with the molding surface I (1.1), and the pressing block (2) is arranged on the notch (1.2) and fixedly connected with the tail frame (1).

2. The tail convenient for removing a sprocket assembly as set forth in claim 1, wherein: the embedded block (3) comprises a forming part (3.2) and a mounting part (3.3) which are fixedly connected, the mounting part (3.3) is arranged at one end of the forming part (3.2), a through threaded hole (3.4) is formed in the end face, close to the pressing block (2), of the mounting part (3.3), and the mounting part (3.3) is fixedly connected with the tail frame (1) through a bolt;

The thickness of the forming part (3.2) decreases in a direction away from the mounting part (3.3).

3. The tail convenient for removing a sprocket assembly as set forth in claim 1, wherein: the central angle beta corresponding to the molding surface II (2.1) is less than or equal to 120 degrees, and the lower quadrant point of the mounting hole (4) is positioned on the molding surface III (3.1).

4. The tail convenient for removing a sprocket assembly as set forth in claim 1, wherein: the briquetting (2) is connected with the tail frame (1) through a bolt, the included angle of two connecting surfaces of the briquetting (2) is 90 degrees, and the included angle of an angular bisector of the central angle corresponding to the molding surface II (2.1) and the horizontal line is 45 degrees.

5. The tail convenient for removing a sprocket assembly as set forth in claim 2, wherein: the end face, close to the pressing block (2), of the mounting part (3.3) is abutted against the pressing block (2).