A roller changing support device

Abstract

This utility model discloses a roller changing support device, which includes a ground support, a positioning stake on the support, a rotating roller shaft connected to the positioning stake and covered by a conveyor belt, and a roller changing support device on the positioning stake including a crossbar, with a positioning rod hinged to the end of the crossbar. The lower end of the positioning rod is positioned by contacting and positioning the positioning stake through a trapezoidal butt joint. The positioning rod has a guide groove, in which a hydraulic rod is slidably hinged to the crossbar. The extension and retraction of the hydraulic rod drives the positioning rod to slide in the guide groove and drives the crossbar to rise and fall. This utility model achieves stable support for the conveyor belt through hydraulic drive, without the need for continuous manual force application, and can be operated by a single person. The precise docking of the positioning rod and the positioning stake ensures stable support, the rounded corner design protects the conveyor belt, and the threaded sleeve allows for flexible combination, suitable for different roller changing needs, significantly improving roller changing efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of mechanical design and manufacturing, specifically to an auxiliary roller changing device. Background Technology

[0002] In the existing technology, when workers in our factory change conveyor rollers, the operation method is that one worker lifts the conveyor belt with a pole, and then another worker is needed to disassemble and change the rollers. This method requires workers to provide a lot of physical strength to support the conveyor belt and cannot be operated independently. During the roller changing process, there is also a risk of accidents where the conveyor belt falls and injures workers. Therefore, there is a need to provide a device with a support function that allows a single worker to operate the device while ensuring worker safety. Utility Model Content

[0003] To solve the above problems, this utility model discloses a roller changing support device.

[0004] The specific technical solution is as follows:

[0005] A roller changing support device includes a bracket set on the ground, a positioning post on the bracket, a rotating roller shaft connected to the positioning post, a conveyor belt covering the rotating roller, and a roller changing support device set on the positioning post. The roller changing support device includes a crossbar, a positioning rod hinged to the end of the crossbar, the lower end of the positioning rod contacting the positioning post for positioning, a guide groove on the positioning rod, a hydraulic rod slidably disposed in the guide groove, the hydraulic rod hinged to the crossbar, the upper end face of the crossbar abutting against the conveyor belt, and the end of the crossbar abutting against the conveyor belt having a rounded corner. The hydraulic rod pulls the positioning rod to slide in the guide groove. When the end of the hydraulic rod is at the lower end in the guide groove, the positioning rod is perpendicular to the crossbar.

[0006] The lower end of the positioning rod is provided with a trapezoidal connector, which is conformally arranged to the upper end of the positioning pile.

[0007] The two ends of the crossbar are equipped with the same hydraulic rod and positioning rod.

[0008] The roller changing support device is provided in two sets, and the two sets of roller changing support devices are screwed together by threaded sleeves.

[0009] The advantages of this utility model are: stable support, effective protection for workers changing rollers, simple operation, requiring only one worker to complete, support for the conveyor rollers at both ends, fewer installation and positioning steps required for workers during operation, and improved roller changing efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the roller changing support device;

[0012] Figure 3 This is a schematic diagram of the conveyor roller. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] A roller changing support device includes a bracket 1 set on the ground, a positioning post 2 set on the bracket 1, a rotating roller 3 shaft connected to the positioning post, a conveyor belt 4 covering the rotating roller 3, and a roller changing support device set on the positioning post 2. The roller changing support device includes a crossbar 5, and a positioning rod 6 is hinged to the end of the crossbar 5. The lower end of the positioning rod 6 contacts and positions itself with the positioning post 2. The positioning rod 6 is provided with a guide groove 61, and a hydraulic rod 7 is slidably set in the guide groove 61. The hydraulic rod 7 is hinged to the crossbar 5, and the upper end face of the crossbar 5 abuts against the conveyor belt 4. The end of the crossbar abuts against the conveyor belt at a rounded corner 5a. The hydraulic rod 7 pulls the positioning rod 6 to slide in the guide groove 61. When the end of the hydraulic rod 7 is at the lower end in the guide groove 61, the positioning rod 6 is perpendicular to the crossbar 5.

[0015] The lower end of the positioning rod 6 is provided with a trapezoidal connector 6a, which is conformally arranged to the upper end of the positioning pile 2.

[0016] The two ends of the crossbar 5 are equipped with the same hydraulic rod 7, positioning rod 6, and positioning stake 2.

[0017] The roller changing support device is provided in two sets, and the two sets of roller changing support devices are screwed together by threaded sleeve 8.

[0018] The working principle of this utility model is as follows:

[0019] 1. Initial positioning and installation

[0020] When it is necessary to replace the conveyor roller, first align the trapezoidal connector 6a at the lower end of the positioning rod 6 of the roller replacement support device with the upper end of the positioning stake 2. Because the connector and the positioning stake are designed to conform to their shapes (i.e., shape matching), precise alignment of the positioning rod and the positioning stake can be achieved quickly, ensuring that the support device will not shift under load. At this time, the end of the hydraulic rod 7 is located at the upper end of the guide groove 61, the positioning rod 6 is perpendicular to the crossbar 5, and the crossbar is in its initial low position, not in contact with the conveyor belt 4.

[0021] 2. Hydraulically driven support conveyor belt

[0022] The operator activates the hydraulic system, and the hydraulic rod 7 begins to slide downwards along the guide groove 61. Since one end of the hydraulic rod is hinged to the crossbar 5, and the other end is slidably connected to the positioning rod 6 via the guide groove, the hydraulic rod pulls the positioning rod to rotate around its hinge point with the crossbar, simultaneously causing the crossbar to move downwards. During this process, the upper surface of the crossbar 5 gradually contacts and lifts the conveyor belt 4 covering the rotating roller 3.

[0023] The purpose of the rounded corner design: The rounded corner design at the point where the crossbar meets the conveyor belt (5a) can reduce the friction and damage to the conveyor belt when the crossbar is lifted, while reducing the resistance to the sliding of the conveyor belt and ensuring a smooth support process.

[0024] Mechanical stability: The positioning rod 6 fits tightly with the positioning pile 2 through the trapezoidal joint to form a stable support base; the extension force of the hydraulic rod 7 is converted into the lifting force of the crossbar through the guide groove, so that the crossbar forms a lever support structure with the positioning rod as the fulcrum, ensuring that the conveyor belt is evenly stressed after being lifted and avoiding swaying.

[0025] 3. Roll changing operation and support maintenance

[0026] When the hydraulic rod 7 slides to the predetermined position of the guide groove 61, the crossbar 5 has stably lifted the conveyor belt 4. At this time, the rotating roller 3 is lifted and removed from its original installation position, allowing the operator to safely disassemble the old roller and install the new roller. The hydraulic system can maintain the current pressure, keeping the crossbar in a supported state without the need for continuous manual force application, thus avoiding the physical exertion and safety hazards of traditional manual pole support.

[0027] 4. Multi-scenario adaptation and combination expansion

[0028] Synchronous support at both ends: When facing a wide conveyor belt, the crossbar 5 is equipped with the same hydraulic rod 7 and positioning rod 6 at both ends, which can support both sides of the conveyor belt at the same time and ensure that the force on both sides is balanced.

[0029] Multiple device combinations: When it is necessary to support a longer or wider conveyor belt, two sets of roller changing support devices can be screwed together by threaded sleeve 8 to flexibly adjust the support length and expand the applicable range of the device.

[0030] 5. Disassembly and Reassembly

[0031] After the roller change is completed, the operator controls the hydraulic rod 7 to extend and rise along the guide groove 61 to the upper end, and the crossbar 5 descends accordingly, and the conveyor belt 4 gradually falls back onto the newly installed rotating roller 3. Subsequently, the connection between the positioning rod 6 and the positioning stake 2 is removed, and the support device is moved away from the working area, completing the roller change process.

Claims

1. A roll changing support device comprising a support arranged on the ground, a positioning pile arranged on the support, a roll shaft connected to the positioning pile, and a conveyor belt arranged on the roll shaft, characterized in that: A roller-changing support device is installed on the positioning pile. The roller-changing support device includes a crossbar, and a positioning rod is hinged to the end of the crossbar. The lower end of the positioning rod contacts and positions itself on the positioning pile. The positioning rod is provided with a guide groove, and a hydraulic rod is slidably installed in the guide groove. The hydraulic rod is hinged to the crossbar, and the upper end face of the crossbar abuts against the conveyor belt. The end of the crossbar that abuts against the conveyor belt is rounded. The hydraulic rod pulls the positioning rod to slide in the guide groove. When the end of the hydraulic rod is at the lower end in the guide groove, the positioning rod is perpendicular to the crossbar.

2. The roll changing support device according to claim 1, characterized in that: The lower end of the positioning rod is provided with a trapezoidal connector, which is conformally arranged to the upper end of the positioning pile.

3. The roll changing support device according to claim 1, characterized in that: The two ends of the crossbar are equipped with the same hydraulic rod and positioning rod.

4. The roll changing support device according to claim 1, characterized by: The roller changing support device is provided in two sets, and the two sets of roller changing support devices are screwed together by threaded sleeves.

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