Device for replacing belt carrier roller

Abstract

The utility model provides a device for replacing a belt carrier roller, which belongs to the technical field of maintenance of belt conveyors, solves the problems that the conventional belt carrier roller is time-consuming and labor-consuming and low in efficiency and has potential safety hazards when being replaced, and comprises a horizontal jack and a jacking bracket, a horizontal lifting control sleeve for controlling a lifting arm in the horizontal jack to ascend and descend is arranged on the integrated support, a connector is arranged at the end of the lifting end of the lifting arm, the jacking bracket comprises a transverse rod, a vertical rod is connected to the lower portion of the middle of the transverse rod, the connector is detachably connected with the vertical rod, and a vertical jack is detachably arranged between the connector and the vertical rod. According to the utility model, the potential safety hazard caused by manually lifting the belt is avoided, the occurrence of mechanical injury accidents is reduced, the number of operators required for replacing the belt is greatly reduced, the labor force is saved, the maintenance time of each carrier roller is shortened, and the production efficiency is improved, so that the safety risk, the operation time and the labor intensity are greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyor maintenance, and particularly relates to a device for replacing belt rollers. Background Art

[0002] As the primary conveying device for ore, the operating condition of belt conveyors' rollers directly impacts their efficiency. During routine belt conveyor maintenance, various models of belt conveyors are involved, including numerous roller types, including buffer rollers, parallel rollers, and offset rollers. Failure to promptly replace damaged rollers can lead to belt scratches, tears, and increased belt surface vibration. The installation space for rollers is limited, and various roller types are installed in different positions, with the belt pressing tightly against them.

[0003] The conventional replacement method is that multiple people use crowbars to pry the belt open at the same time, and one person drills under the belt and lifts it up with his body before the rollers can be removed and installed. During the removal and installation process, there are the following problems: when personnel disassemble and install rollers, there is a greater risk of being hit by objects, which may cause bumps, squeezing, and the crowbar slipping and injuring people, thereby causing belt squeezing and injury accidents; damaged rollers need to be replaced almost every day in production, relying on tools such as crowbars, wrenches, and manual lifting methods to replace them. It requires the cooperation of multiple people to complete the replacement, which requires a lot of labor; belt conveyor maintenance is mainly concentrated in the crushing stop time, and delays in starting often occur due to roller replacement. In view of the above problems, it is necessary to make a simple mechanical device to assist in replacing rollers, so as to achieve the purpose of mechanized replacement and ensure maintenance safety. Utility Model Content

[0004] The utility model aims to provide a device for replacing belt rollers, so as to solve the problems of time-consuming and labor-intensive, low-efficiency and potential safety hazards in conventional belt roller replacement.

[0005] The technical solution of the utility model is: a device for replacing belt rollers, comprising a horizontal jack and a lifting bracket, the horizontal jack is arranged on an integrated bracket, the integrated bracket is provided with a horizontal lifting control sleeve for controlling the lifting of the lifting arm in the horizontal jack, the lifting end of the lifting arm is provided with a connecting head, the lifting bracket includes a cross bar, a vertical bar is connected to the lower middle part of the cross bar, the connecting head and the vertical bar are detachably connected, and a vertical jack is also detachably provided between the connecting head and the vertical bar.

[0006] As a further improvement of the present invention, wheels are provided at the bottom of the integrated bracket, and a limiting device is provided on the wheels.

[0007] As a further improvement of the present invention, a fixed bracket is provided below the integrated bracket, a guide rail is provided on the fixed bracket, and the wheels are slidably arranged on the guide rail.

[0008] As a further improvement of the present invention, the vertical jack includes a cylinder body, a base is provided at the bottom of the cylinder body, a vertical lifting control sleeve is provided on the base for controlling the lifting and lowering of the pushing end of the vertical jack, the pushing end of the vertical jack is detachably connected to the vertical rod of the jacking bracket, and a connecting rod is provided under the base, which is detachably connected to the connecting head.

[0009] As a further improvement of the present invention, oblique bars are symmetrically provided between the horizontal bar and the vertical bar of the jacking bracket, and the angle between the oblique bars and the horizontal bar is 45°.

[0010] The beneficial effects of the present invention are as follows: the present invention adopts a split assembly structure and a walking pushing device, which can be used to replace the upper and lower belt rollers of a belt conveyor under different usage environments, effectively realizing the quick installation of the top support, and can also be longitudinally displaced and extended, effectively increasing the operating range, and is suitable for replacing rollers of various models of various belt conveyors, greatly improving the work efficiency of operators, eliminating the safety hazards of manually lifting the belt, and reducing the occurrence of mechanical injuries such as crowbars and wrenches slipping and injuring people, and belt squeezing. The number of operators required for replacing the belt is greatly reduced, saving labor, shortening the maintenance time of each roller, and improving production efficiency, thereby greatly reducing safety risks, operating time and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the use of the utility model to replace the upper belt;

[0012] Figure 2 This is a schematic diagram of the connection between the horizontal jack and the jacking bracket in the utility model;

[0013] Figure 3 This is a schematic diagram of the connection between the neutral jack and the jacking bracket of the utility model.

[0014] In the figure: 1-horizontal jack; 11-integrated bracket; 12-lifting arm; 13-connecting head; 14-horizontal lifting control sleeve; 15-wheel; 16-limiting device; 2-vertical jack; 21-cylinder; 22-vertical lifting control sleeve; 23-base; 24-connecting rod; 3-lifting bracket; 31-cross bar; 32-vertical bar; 33-diagonal bar; 4-guide rail; 5-fixed bracket; 6-belt. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] like Figure 1-Figure 3As shown, a device for replacing belt rollers includes a horizontal jack 1 and a lifting bracket 3. The horizontal jack 1 is arranged on an integrated bracket 11. The integrated bracket 11 is provided with a horizontal lifting control sleeve 14 for controlling the lifting and lowering of a lifting arm 12 in the horizontal jack 1. The lifting end of the lifting arm 12 is provided with a connecting head 13. The lifting bracket 3 includes a cross bar 31. A vertical bar 32 is connected to the lower middle part of the cross bar 31. The connecting head 13 and the vertical bar 32 are detachably connected. A vertical jack 2 is also detachably provided between the connecting head 13 and the vertical bar 32.

[0017] The bottom of the integrated bracket 11 is provided with wheels 15, and the wheels 15 are provided with a limiting device 16. A fixed bracket 5 is provided below the integrated bracket 11, and a guide rail 4 is provided on the fixed bracket 5, and the wheels 15 are slidably provided on the guide rail 4.

[0018] The vertical jack 2 includes a cylinder 21, with a base 23 at the bottom. The base 23 is equipped with a vertical lift control sleeve 22 that controls the lifting and lowering of the jacking end of the vertical jack 2. The jacking end of the vertical jack 2 is detachably connected to the vertical rod 32 of the jacking bracket 3. A connecting rod 24 is provided below the base 23, and the connecting rod 24 is detachably connected to the connector 13. The jacking bracket 3 has symmetrically arranged diagonal rods 33 between the horizontal rod 31 and the vertical rod 32, with the angle between the diagonal rod 33 and the horizontal rod 31 being 45 degrees.

[0019] Example 1

[0020] The connecting head 13 on the horizontal jack 1 is provided with a positioning hole, and the vertical rod 32 of the jacking bracket 3 and the positioning hole are fixed by a detachable threaded connection, and the vertical rod 32 is also limited by a nut to ensure the stability of the connection; three hexagonal nuts are installed on the upper part of the cross bar 31 of the jacking bracket 3, which are used for positioning and anti-slipping of the belt 6 when supporting it; the fixed bracket 5 is made of two 30-degree angle steels welded together, and is set on the lower cross beam of the belt conveyor when in use, to assist the utility model in position adjustment and fixed positioning when replacing the upper belt roller; the vertical rod 32 is set in the middle of the cross bar 31, and the angle between the diagonal rod 33 and the cross bar 31 is 45°, which can increase the stability of the structure, better disperse and withstand the pressure when lifting the belt 6, make the force more uniform, reduce stress concentration, thereby improving the overall bearing capacity of the structure, and contributing to the overall balance and stability of the structure, thereby ensuring the quality and safety of the operation.

[0021] When replacing the upper belt roller, if the belt frame is high and the maximum stroke of the lifting arm 12 is still unable to meet the longitudinal jacking of the belt 6, there will be a situation where the jacking bracket 3 is not enough to obtain sufficient maintenance space. At this time, it is necessary to set up the fixed bracket 5 on the lower crossbeam of the belt conveyor, and then place the integrated bracket 11 equipped with the horizontal jack 1 on the guide rail 4 of the fixed bracket 5, push the integrated bracket 11 to the appropriate position through the wheel 15, connect the connecting head 13 with the connecting rod 24 at the bottom of the vertical jack 2, and connect the pushing end of the vertical jack 2 with the vertical rod 32 of the jacking bracket 3. By inserting the lifting rod into the horizontal lifting control sleeve 14 and the vertical lifting control sleeve 22 to control the start of the horizontal jack 1 and the vertical jack 2 to push, the jacking bracket 3 can lift the belt 6 and then replace the roller.

[0022] When replacing the lower belt rollers, if the lifting arm 12 has sufficient travel distance, the integrated bracket 11 is moved to the position where the rollers need to be replaced via the wheels 15. The vertical rod 32 is directly connected to it on the connector 13. By inserting the lifting rod into the horizontal lifting control sleeve 14 to control the start of the horizontal jack 1 to push, the lifting bracket 3 can lift the belt 6 and then replace the rollers. Regardless of whether the upper or lower belt 6 is replaced, after the integrated bracket 11 is confirmed to have moved to the target position, the wheels 15 need to be limited by the limit device 16 to ensure stability during operation.

[0023] The traditional replacement method usually takes 5 people one hour to replace a roller. The utility model only requires 2 people to complete it in half an hour. The production line needs to replace about 500 rollers of various sizes every year. (5 people × 1 hour - 2 people × 0.5 hours) × 500 rollers × 106 yuan / hour = 212,000 yuan. Therefore, labor costs of 212,000 yuan can be saved. Under the premise of ensuring the safe replacement of rollers, the operation efficiency is improved, and labor and production costs are saved.

Claims

1. A device for replacing belt rollers, characterized in that: The invention comprises a horizontal jack (1) and a jacking bracket (3), wherein the horizontal jack (1) is arranged on an integrated bracket (11), and a horizontal lifting control sleeve (14) for controlling the lifting of a lifting arm (12) in the horizontal jack (1) is provided on the integrated bracket (11), and a connecting head (13) is provided at the lifting end of the lifting arm (12), and the jacking bracket (3) comprises a horizontal rod (31), and a vertical rod (32) is connected to the lower middle part of the horizontal rod (31), and the connecting head (13) and the vertical rod (32) are detachably connected, and a vertical jack (2) is detachably provided between the connecting head (13) and the vertical rod (32).

2. The device for replacing belt rollers according to claim 1, characterized in that: The bottom of the integrated bracket (11) is provided with a wheel (15), and the wheel (15) is provided with a limiting device (16).

3. The device for replacing belt rollers according to claim 2, characterized in that: A fixed bracket (5) is provided below the integrated bracket (11), a guide rail (4) is provided on the fixed bracket (5), and wheels (15) are slidably provided on the guide rail (4).

4. The device for replacing belt rollers according to claim 1, characterized in that: The vertical jack (2) includes a cylinder (21), a base (23) is provided at the bottom of the cylinder (21), a vertical lifting control sleeve (22) is provided on the base (23) for controlling the lifting and lowering of the vertical jack (2) pushing end, the vertical jack (2) pushing end is detachably connected to the vertical rod (32) of the jacking bracket (3), a connecting rod (24) is provided below the base (23), and the connecting rod (24) is detachably connected to the connecting head (13).

5. The device for replacing belt rollers according to claim 4, characterized in that: Inclined rods (33) are symmetrically provided between the horizontal rod (31) and the vertical rod (32) of the jacking bracket (3), and the angle between the inclined rod (33) and the horizontal rod (31) is 45°.

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