Detachable floating carrier roller frame with belt deviation rectifying function

Abstract

The utility model belongs to the technical field of belt conveyors, and particularly relates to a detachable floating carrier roller frame with a belt deviation rectifying function. Comprising an upper carrier roller frame, a lower carrier roller frame and supporting leg assemblies, and the upper carrier roller frame, the lower carrier roller frame and the supporting leg assemblies on the two sides are matched through inserting structures and connected through bolts. The self-aligning carrier roller device is characterized in that self-aligning carrier roller frames are arranged on the two sides of the upper carrier roller frame, bayonets in the bottoms of the self-aligning carrier roller frames are clamped on baffles on the supporting leg assemblies, the self-aligning carrier roller frames are connected with side plates on the upper carrier roller frame through fastening bolts, and the axial direction of the fastening bolts is perpendicular to the inserting and pulling direction of the bayonets; the self-aligning carrier rollers are additionally arranged on the two sides of the floating carrier roller frame, when the belt deviates and collides with the self-aligning carrier rollers, transverse thrust is generated due to the friction effect between the self-aligning carrier rollers and the edge of the belt to enable the belt to be centripetal automatically, and the purpose of adjusting deviation of the belt is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyors, and particularly relates to a detachable floating idler bracket with a belt deviation rectification function. Background Art

[0002] The self - moving tail of a belt conveyor is a mobile device used in coal mine fully mechanized mining and tunneling faces in supporting with belt conveyors and transfer machines. It is lapped directly below the head of the transfer machine. Its main function is to receive the materials unloaded by the head of the transfer machine and continuously and smoothly transport them to the well. At the same time, it has functions such as belt deviation adjustment, transfer machine pushing direction correction, and self - forward movement.

[0003] As a key component of the self - moving tail of a belt conveyor, the floating idler group mainly consists of idlers, a floating idler bracket, a hinge beam, and a lifting oil cylinder. The hinge beam and the lifting oil cylinder are respectively connected to the head end frame by pin connections. By the telescopic action of the lifting oil cylinder, the height of the floating idler is changed to adapt to the height change of the belt conveyor and the terrain change in the roadway within a certain range, so as to reduce the leakage of coal and enhance the applicability of the self - moving tail of the belt conveyor. However, the traditional floating idler bracket of the self - moving tail of a belt conveyor is an integral welded structure and has a single function. There are mainly the following two problems:

[0004] 1. Due to the harsh environment of the underground roadway, the working face floor is often uneven. During the use of the floating idler bracket, it is inevitable to have bumps, deformations, and wear. However, limited by the underground conditions, the equipment transportation and maintenance are difficult.

[0005] 2. When the self - moving tail of a belt conveyor is performing operations such as transfer machine pushing direction correction and self - forward movement, and due to reasons such as the settlement of the roadway floor, it is very easy to have the problem of belt deviation at the tail of the machine. Usually, a hydraulic drum deviation - adjusting jack is installed on one side of the tail drum shaft, and the belt deviation of the tail drum is adjusted by the telescopic action of the force arm of the jack. However, this is time - consuming and laborious and has high requirements for the technical level of operators. Summary of the Utility Model

[0006] The utility model aims to solve the problems of inconvenient disassembly and transportation of the traditional floating idler bracket and easy belt deviation at the tail of the machine.

[0007] The utility model provides the following technical solution: A detachable floating idler bracket with a belt deviation rectification function, including an upper idler bracket, a lower idler bracket, and a leg assembly. The upper idler bracket, the lower idler bracket, and the leg assemblies on both sides are cooperated through a plug - in structure and connected by bolts; centering idler brackets are arranged on both sides of the upper idler bracket. The bayonet at the bottom of the centering idler bracket is stuck on the baffle on the leg assembly, and the centering idler bracket is connected to the side plate on the upper idler bracket through a fastening bolt. The axial direction of the fastening bolt is perpendicular to the insertion and extraction direction of the bayonet.

[0008] Furthermore, the self-aligning idler bracket includes a supporting vertical plate. A self-aligning idler connecting part and a stop block are fixed to the front surface of the supporting vertical plate, and two rib plates are fixed to the back surface. The stop block is aligned with the rib plates. The lower ends of the stop block and the rib plates extend out relative to the supporting vertical plate, and a bayonet is formed between the stop block and the rib plates.

[0009] Furthermore, two horizontal mounting plates are fixed to the front surface of the supporting vertical plate. The two horizontal mounting plates are divided into an upper horizontal mounting plate and a lower horizontal mounting plate. A bolt connecting plate is fixed to the bottom of the lower horizontal mounting plate. The bolt connecting plate is parallel to the supporting vertical plate, and a fastening bolt passes through the bolt connecting plate.

[0010] Furthermore, a self-aligning idler is further included. The two ends of the rotating shaft of the self-aligning idler are respectively connected to an upper clip and a lower clip. The upper clip is connected to the upper horizontal mounting plate by screws, and the lower clip is connected to the bolt connecting plate by screws.

[0011] Furthermore, a stiffening plate is connected between the bolt connecting plate, the lower horizontal mounting plate and the supporting vertical plate.

[0012] Compared with the prior art, the advantages of the present utility model are as follows:

[0013] A split-type floating idler bracket with a belt deviation correction function provided by the present utility model adopts a modular design strategy, and the structure of the floating idler bracket is designed to be split-type. It mainly consists of an upper idler bracket, a lower idler bracket, a leg assembly and a self-aligning idler bracket. Each component is provided with connection bolt holes and insertion slots, which can not only ensure accurate positioning but also ensure firm connection, and at the same time improve the operation convenience in many aspects such as disassembly, transportation and maintenance.

[0014] Self-aligning idlers are added on both sides of the floating idler bracket; by simulating the lateral movement trajectory of the belt at the tail of the self-propelled conveyor, the optimal installation height of the self-aligning idler bracket is determined to ensure a reasonable relative position between the belt edge and the self-aligning idler. When the belt runs off track, it touches the self-aligning idler, and a lateral thrust is generated due to the frictional action between the self-aligning idler and the belt edge, causing the belt to automatically move towards the center, achieving the purpose of adjusting the belt deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the split-type floating idler bracket;

[0016] Figure 2 is the side view of the split-type floating idler bracket;

[0017] Figure 3 is the side view of the self-aligning idler bracket;

[0018] Figure 4 is the front view of the self-aligning idler bracket;

[0019] Figure 5 is the schematic diagram of the split-type floating idler bracket installing idlers.

[0020] In the figure: 1 - upper idler support frame; 2 - lower idler support frame; 3 - leg assembly; 4 - self-aligning idler support frame; 4.1 - bayonet; 4.2 - supporting vertical plate; 4.3 - rib plate; 4.4 - stop block; 4.5 - upper horizontal mounting plate; 4.6 - lower horizontal mounting plate; 4.7 - bolt connecting plate; 4.8 - stiffening plate; 5 - baffle; 6 - fastening bolt; 7 - side plate; 8 - upper clip; 9 - lower clip; 10 - self-aligning idler. Detailed implementation manners

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] As Figure 1 、 Figure 2 、 Figure 5 shown: A split-type floating idler support frame with a belt deviation correction function, including an upper idler support frame 1, a lower idler support frame 2 and a leg assembly 3. The upper idler support frame 1, the lower idler support frame 2 and the leg assemblies 3 on both sides are cooperated through a plug-in structure and bolt-connected; it can not only ensure accurate positioning but also ensure firm connection. It has the characteristics of simple operation, convenient transportation and maintenance.

[0023] The split-type floating idler support frame with a belt deviation correction function in this embodiment is improved on the basis of the one with the publication number of CN206985024U and the invention name of "split-type floating idler support frame". The connection structure between the upper idler support frame 1, the lower idler support frame 2 and the leg assembly 3 has been described in detail in the "split-type floating idler support frame" and will not be repeated in this embodiment. (The applicant of this application, "Jinneng Holding Equipment Manufacturing Group Jinding Shanxi Coal Mining Machinery Co., Ltd.", is a company split from the patentee of the utility model patent "split-type floating idler support frame", "Shanxi Jincheng Anthracite Mining Group Co., Ltd.").

[0024] Self-aligning idler support frames 4 are arranged on both sides of the upper idler support frame 1. The bayonet 4.1 at the bottom of the self-aligning idler support frame 4 is stuck on the baffle 5 on the leg assembly 3. The baffle 5 vertically supports the self-aligning idler support frame 4. The self-aligning idler support frame 4 is connected to the side plate 7 on the upper idler support frame 1 through a fastening bolt 6. The axial direction of the fastening bolt 6 is perpendicular to the insertion and extraction direction of the bayonet 4.1. When the belt runs off at the tail end of the machine due to various reasons, it will come into contact with the self-aligning idler 10. Due to the frictional force between the self-aligning idler 10 and the edge of the belt, a lateral thrust is generated to make the belt automatically move towards the center, achieving the purpose of automatically adjusting the belt deviation, thereby reducing manual operation.

[0025] The floating idler bracket is designed as a modular and detachable structure. At the same time, self-aligning idlers 10 are added on both sides of the idler bracket to improve the problem of belt deviation at the position of the self-advancing shearer tail. It has the following advantages: 1. The floating idler bracket is designed as a detachable structure, which is convenient for transportation underground. 2. The structure is simple. Adopting a modular design scheme, each assembled component is connected by bolts, and the operation is convenient. 3. A self-aligning idler module is added to the traditional floating idler bracket structure to enable it to have the function of belt deviation correction.

[0026] As Figure 3 、 Figure 4 shown: The self-aligning idler bracket 4 includes a supporting vertical plate 4.2. A self-aligning idler connecting part and a stop block 4.4 are fixed on the front of the supporting vertical plate 4.2, and two rib plates 4.3 are fixed on the back. The stop block 4.4 is aligned with the rib plates 4.3. The lower ends of the stop block 4.4 and the rib plates 4.3 extend out relative to the supporting vertical plate 4.2, and a bayonet 4.1 is formed between the stop block 4.4 and the rib plates 4.3.

[0027] Two horizontal mounting plates are fixed on the front of the supporting vertical plate 4.2. The two horizontal mounting plates are divided into an upper horizontal mounting plate 4.5 and a lower horizontal mounting plate 4.6. A bolt connecting plate 4.7 is fixed at the bottom of the lower horizontal mounting plate 4.6. The bolt connecting plate 4.7 is parallel to the supporting vertical plate 4.2, and a fastening bolt 6 passes through the bolt connecting plate 4.7.

[0028] It also includes a self-aligning idler 10. The two ends of the rotating shaft of the self-aligning idler 10 are respectively connected to an upper clip 8 and a lower clip 9. The upper clip 8 is connected to the upper horizontal mounting plate 4.5 by screws, and the lower clip 9 is connected to the bolt connecting plate 4.7 by screws, which is convenient for disassembling and replacing the self-aligning idler 10.

[0029] A stiffening plate 4.8 is connected between the bolt connecting plate 4.7, the lower horizontal mounting plate 4.6 and the supporting vertical plate 4.2 to increase the strength of the bolt connecting plate 4.7.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A detachable floating roller frame with a belt deviation correction function, comprising an upper roller frame (1), a lower roller frame (2) and a leg assembly (3), wherein the upper roller frame (1), the lower roller frame (2) and the leg assemblies (3) on both sides are matched with each other through a plug-in structure and connected with bolts; characterized in that: The upper roller frame (1) is provided with self-aligning roller frames (4) on both sides. The bayonet (4.1) at the bottom of the self-aligning roller frame (4) is clamped on the baffle (5) on the leg assembly (3). The self-aligning roller frame (4) is connected to the side plate (7) on the upper roller frame (1) through a fastening bolt (6). The axial direction of the fastening bolt (6) is perpendicular to the insertion and extraction direction of the bayonet (4.1).

2. The detachable floating roller frame with belt deviation correction function according to claim 1 is characterized in that: The self-aligning roller frame (4) comprises a supporting vertical plate (4.2), a self-aligning roller connecting portion and a stopper (4.4) are fixed on the front of the supporting vertical plate (4.2), and two ribs (4.3) are fixed on the back, the stopper (4.4) is aligned with the ribs (4.3), the lower ends of the stopper (4.4) and the ribs (4.3) extend outward relative to the supporting vertical plate (4.2), and a bayonet (4.1) is formed between the stopper (4.4) and the ribs (4.3).

3. The detachable floating roller frame with belt deviation correction function according to claim 2 is characterized in that: Two horizontal mounting plates are fixed on the front of the supporting vertical plate (4.2), and the two horizontal mounting plates are divided into an upper horizontal mounting plate (4.5) and a lower horizontal mounting plate (4.6). A bolt connection plate (4.7) is fixed on the bottom of the lower horizontal mounting plate (4.6), and the bolt connection plate (4.7) is parallel to the supporting vertical plate (4.2), and the fastening bolts (6) are passed through the bolt connection plate (4.7).

4. The detachable floating roller frame with belt deviation correction function according to claim 3 is characterized in that: It also includes a self-aligning roller (10), the two ends of the rotating shaft of the self-aligning roller (10) are respectively connected to an upper clamping piece (8) and a lower clamping piece (9), the upper clamping piece (8) is connected to the upper horizontal mounting plate (4.5) through screws, and the lower clamping piece (9) is connected to the bolt connection plate (4.7) through screws.

5. The detachable floating roller frame with belt deviation correction function according to claim 3 is characterized in that: A stiffening plate (4.8) is connected between the bolt connection plate (4.7), the lower horizontal mounting plate (4.6) and the supporting vertical plate (4.2).

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