Auxiliary device for replacing carrier roller of belt conveyor

Abstract

The utility model discloses a belt conveyor carrier roller replacement auxiliary device which comprises a fixing frame and a top plate arranged at the top of the fixing frame, and a transmission assembly used for driving the top plate to move up and down is arranged between the fixing frame and the top plate. Wherein the transmission assembly comprises a lead screw, the lead screw is rotationally installed on the fixing frame, threads at the two ends of the lead screw are opposite, two moving blocks are symmetrically arranged on the lead screw, and the moving blocks are in threaded connection with the lead screw; first transmission rods are hinged to the tops of the moving blocks, and the middles of the two first transmission rods are rotationally connected through a rotating shaft. The device is installed at the bottom of a belt, the first transmission rod and the second transmission rod drive the top plate to move upwards to jack up the belt by rotating the lead screw, the carrier roller body is convenient to replace, operation is easy, time and labor are saved, mutual cooperation of many people is not needed, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to an auxiliary device for replacing rollers of belt conveyors. Background Art

[0002] Belt conveyor is one of the important equipment for large-scale metal open-pit mines and coal mine transportation, and is widely used in mining and coal mine transportation. Figure 1 As shown, the belt conveyor body 1 is a belt conveying device in the prior art, which includes a belt 101, a bracket 102 and a roller body 103. The bracket 102 is used to support the roller body 103. The belt 101 is arranged on the roller body 103 and contacts the roller body 103. The belt 101 drives the roller body 103 to rotate during the conveying process. The roller body 103 is a consumable part and is replaced frequently.

[0003] Since the belt 101 is arranged on the top of the roller body 103 and contacts the surface of the roller body 103, before replacing the roller body 103, the belt 101 needs to be lifted up so that the belt 101 is separated from the roller body 103 to be replaced and has a certain distance.

[0004] The traditional method of replacing the roller body is to use a crowbar to pry up the belt or a hoist to pull up the belt, and then replace the roller body. Due to the high tension of the belt, it is more laborious to pry or pull up the belt, and it requires more people to cooperate with each other. When using a crowbar, if the belt is stressed, improper operation may cause the crowbar to suddenly slip off, which may cause harm to the maintenance personnel.

[0005] Therefore, the traditional method of using a crowbar to pry up the belt or a hoist to pull up the belt, although the operation method is relatively simple, is time-consuming and labor-intensive, and has safety hazards. Utility Model Content

[0006] The utility model aims to provide an auxiliary device for replacing rollers of a belt conveyor, so as to solve the technical problems in the prior art that the method of using a crowbar or a hoist to lift the belt is time-consuming and labor-intensive, and has potential safety hazards.

[0007] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0008] A belt conveyor roller replacement auxiliary device comprises a fixing frame and a top plate arranged on the top of the fixing frame, and a transmission assembly for driving the top plate to move up and down is arranged between the fixing frame and the top plate;

[0009] The transmission assembly includes a screw rod, which is rotatably mounted on a fixed frame, with threads at both ends of the screw rod being opposite to each other, and two moving blocks being symmetrically arranged on the screw rod, and the moving blocks being threadedly connected to the screw rod;

[0010] A transmission rod 1 is hinged on the top of the moving block, and the middle parts of the two transmission rods 1 are rotatably connected through a rotating shaft. A transmission rod 2 is provided between the top of the transmission rod and the top plate, and the two ends of the transmission rod 2 are respectively hinged to the top plate and the transmission rod 1;

[0011] When the screw rod rotates forwardly under the action of external force, the two moving blocks move toward the center direction of the screw rod at the same time, and the top plate is driven to move upward through the transmission rod 1 and the transmission rod 2.

[0012] As a preferred solution of the utility model, a guide rod arranged parallel to the screw rod is fixedly mounted on the fixing frame, and the moving block is slidably connected to the guide rod to limit the moving block.

[0013] As a preferred solution of the utility model, the vertical cross-section of the top plate is configured as an arc convex downward, so that the belt fits against the top of the top plate.

[0014] As a preferred solution of the utility model, the width of the fixing frame is not greater than the distance between two adjacent roller bodies.

[0015] As a preferred solution of the utility model, one end of the screw rod passes through the outside of the fixed frame and is provided with a square head. The part of the screw rod passing through the fixed frame is also provided with a through hole. A fixing pin is connected to one side of the fixed frame for up and down sliding, and the bottom end of the fixing pin is inserted into the through hole.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model installs the device at the bottom of the belt, and by rotating the screw rod, the transmission rod one and the transmission rod two drive the top plate to move up to lift the belt, which is convenient for replacing the roller body. The operation is simple, time-saving and labor-saving, does not require the cooperation of many people, and has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 It is a partial structural schematic diagram of a belt conveyor body in the prior art;

[0020] Figure 2 This is a schematic diagram of the use state of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 4 It is a front view of the utility model;

[0023] Figure 5 For this utility model Figure 4 The structure of part A in the middle is enlarged.

[0024] The numbers in the figure represent the following:

[0025] 1. Belt conveyor body;

[0026] 101. belt; 102. bracket; 103. roller body;

[0027] 201, fixed frame; 202, top plate; 203, transmission assembly; 204, fixing pin;

[0028] 2031, screw rod; 2032, guide rod; 2033, moving block; 2034, transmission rod one; 2035, transmission rod two. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 2 and Figure 3 As shown, the present invention provides an auxiliary device for replacing rollers of a belt conveyor, which mainly lifts up the belt through a top plate 202 to replace the roller body.

[0031] The belt conveyor roller replacement auxiliary device comprises a fixing frame 201 and a top plate 202 arranged on the top of the fixing frame 201, and a transmission assembly 203 for driving the top plate 202 to move up and down is arranged between the fixing frame 201 and the top plate 202;

[0032] The transmission assembly 203 includes a screw rod 2031, which is rotatably mounted on the fixed frame 201. The screw rod 2031 has opposite threads at both ends. Two moving blocks 2033 are symmetrically arranged on the screw rod 2031, and the moving blocks 2033 are threadedly connected to the screw rod 2031.

[0033] A transmission rod 1 2034 is hinged on the top of the moving block 2033, and the middle parts of the two transmission rods 1 2034 are rotatably connected through a rotating shaft. A transmission rod 2035 is provided between the top of the transmission rod and the top plate 202, and the two ends of the transmission rod 2035 are respectively hinged to the top plate 202 and the transmission rod 1 2034;

[0034] When the screw rod 2031 rotates forwardly under the action of external force, the two moving blocks 2033 move toward the center direction of the screw rod 2031 at the same time, and the top plate 202 is driven to move upward through the transmission rod 1 2034 and the transmission rod 2 2035.

[0035] A guide rod 2032 parallel to the screw rod 2031 is fixedly mounted on the fixing frame 201 , and the moving block 2033 is slidably connected to the guide rod 2032 , so as to limit the position of the moving block 2033 .

[0036] The traditional method of replacing the roller body is to use a crowbar to pry up the belt or a hoist to pull up the belt, and then replace the roller body. Due to the high tension of the belt, it is more laborious to pry or pull up the belt, and it requires more people to cooperate with each other. When using a crowbar, if the belt is stressed, improper operation may cause the crowbar to suddenly slip, which may cause harm to the maintenance personnel. Therefore, it is necessary to develop a safe and easy-to-operate auxiliary device.

[0037] In this embodiment, the device is installed at the bottom of the belt, and by rotating the screw rod 2031, the transmission rod 1 2034 and the transmission rod 2035 drive the top plate 202 to move up to lift the belt, which is convenient for replacing the roller body. The operation is simple, time-saving and labor-saving, does not require the cooperation of many people, and has high safety.

[0038] In actual use, 1. place the fixing frame 201 at the bottom of the belt and fix it to the bracket, and place the fixing frame 201 on one side of the roller body that needs to be replaced;

[0039] 2. In the initial state, the top plate 202 is at the lowest point and is not in contact with the belt. The driving device drives the screw rod 2031 to rotate the screw rod 2031, which drives the moving blocks 2033 at both ends to move toward the middle of the screw rod 2031 on the screw rod 2031, and then the transmission rod 1 2034 drives the transmission rod 2 2035 to move, so that the top plate 202 rises;

[0040] 3. When the top plate 202 rises, the belt is lifted up to facilitate the replacement of the roller body.

[0041] As a preferred embodiment of this embodiment, the vertical section of the top plate 202 is set to be a downwardly convex arc, so that the belt fits with the top of the top plate 202. The top of the top plate 202 fits with the bottom of the belt, which can evenly apply force to the belt and extend the service life of the belt.

[0042] Furthermore, the width of the fixing frame 201 is not greater than the distance between two adjacent roller bodies, so that the fixing frame 201 can be placed between the two roller bodies.

[0043] One end of the screw rod 2031 passes through the outside of the fixing frame 201 and is provided with a square head, so that the square head can be installed with an external driving device such as a lithium battery electric wrench. The part of the screw rod 2031 passing through the fixing frame 201 is also provided with a through hole. A fixing pin 204 is connected to one side of the fixing frame 201 for sliding up and down, and the bottom end of the fixing pin 204 is inserted into the through hole. The fixing pin 204 needs to be removed from the through hole before work. After the device lifts the belt, the fixing pin 204 is inserted into it to prevent the top plate 202 from sinking due to force when the driving device is released, thereby improving safety.

[0044] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A belt conveyor roller replacement auxiliary device, characterized in that: It comprises a fixing frame (201) and a top plate (202) arranged on the top of the fixing frame (201), and a transmission assembly (203) for driving the top plate (202) to move up and down is arranged between the fixing frame (201) and the top plate (202); The transmission assembly (203) comprises a screw rod (2031), the screw rod (2031) is rotatably mounted on the fixed frame (201), the threads at both ends of the screw rod (2031) are opposite, two moving blocks (2033) are symmetrically arranged on the screw rod (2031), and the moving blocks (2033) are threadedly connected to the screw rod (2031); A transmission rod 1 (2034) is hingedly connected to the top of the moving block (2033); the middle parts of the two transmission rods 1 (2034) are rotatably connected via a rotating shaft; a transmission rod 2 (2035) is provided between the top of the transmission rod and the top plate (202); and the two ends of the transmission rod 2 (2035) are respectively hingedly connected to the top plate (202) and the transmission rod 1 (2034); When the screw rod (2031) rotates forwardly under the action of an external force, the two moving blocks (2033) simultaneously move toward the center direction of the screw rod (2031), and the top plate (202) is driven to move upward through the transmission rod 1 (2034) and the transmission rod 2 (2035).

2. The belt conveyor roller replacement auxiliary device according to claim 1, characterized in that: A guide rod (2032) arranged parallel to the screw rod (2031) is fixedly mounted on the fixed frame (201), and the moving block (2033) is slidably connected to the guide rod (2032) to limit the position of the moving block (2033).

3. The belt conveyor roller replacement auxiliary device according to claim 2, characterized in that: The vertical cross-section of the top plate (202) is configured to be an arc convex downward, so that the belt fits against the top of the top plate (202).

4. The belt conveyor roller replacement auxiliary device according to claim 3 is characterized in that: The width of the fixing frame (201) is no greater than the distance between two adjacent roller bodies.

5. The belt conveyor roller replacement auxiliary device according to claim 4, characterized in that: One end of the screw rod (2031) passes out of the fixing frame (201) and is provided with a square head; the portion of the screw rod (2031) passing out of the fixing frame (201) is also provided with a through hole; one side of the fixing frame (201) is slidably connected to a fixing pin (204) up and down, and the bottom end of the fixing pin (204) is inserted into the through hole.

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