A special device for dismounting and mounting rubber strips of a vibrating trough rocker arm

Abstract

This invention relates to the field of tobacco processing equipment maintenance technology, specifically a specialized device for disassembling and assembling the rubber strip of a conveyor trough rocker arm. The device includes a workbench, frame, drive assembly, conical fixture, and fixture base plate. This invention achieves mechanically assisted disassembly and assembly of the rocker arm rubber strip using this specialized device. Compared to traditional hammering and prying methods, this device provides stable and controllable pressure, avoiding rocker arm deformation, damage to the mounting groove, and breakage of the rubber strip lip, achieving non-destructive disassembly and assembly. The conical fixture and fixture base plate ensure alignment and consistent installation depth, improving maintenance quality. Disassembly and assembly time efficiency is significantly improved, requiring only one operator and avoiding the risk of tool-related injuries. The workbench integrates storage functionality for easy organization. The device is compact, easy to operate, and cost-effective, making it suitable for rapid on-site maintenance.

Description

Technical Field

[0001] This invention relates to the field of tobacco processing equipment maintenance technology, specifically a special device for disassembling and assembling the rubber strip of the conveyor trough rocker arm. Background Technology

[0002] In cigarette production, the conveyor trough is a crucial piece of equipment that utilizes a rocker arm as the core component for vibration transmission and support, used to smoothly and directionally transport materials such as tobacco leaves and shredded tobacco. The rubber strip inside the rocker arm is a critical cushioning and wear-prone component, press-fitted between the rocker arm and its central support, used for shock absorption, cushioning, and allowing for minor deformation. This rubber strip is made of a relatively soft material, but it has an interference fit with the mounting holes of the metal rocker arm, ensuring a tight assembly.

[0003] Currently, the replacement and repair of rocker arm rubber strips commonly employs a purely manual method of "hammering and prying." During disassembly, the edge of the rubber strip is struck from the side or the center support of the rocker arm is hit directly; during installation, the rubber strip is hammered in using a wooden block. This forceful disassembly and assembly method has the following drawbacks: lateral impact forces easily deform the rocker arm and damage the mounting groove; the lip of the rubber strip is easily pried open or scratched, causing sealing failure and reduced cushioning performance; disassembling and assembling a pair of rubber strips often takes more than 2 hours and requires 2-3 workers, resulting in extremely high labor intensity and very low repair efficiency; there is a risk of tool-related injuries, and the installation depth and concentricity cannot be guaranteed, leading to inconsistent repair quality. Although there are solutions using cryogenic shrinkage or thermal installation methods to assist installation, these require specialized equipment, involve large upfront investments and long preparation times, and are not suitable for on-site repairs or emergency repairs.

[0004] To address this, a specialized device for disassembling and assembling the rubber strips of the conveyor trough rocker arm is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a special device for disassembling and assembling the rubber strip of the rocker arm of a conveyor trough, so as to solve the problems of easy damage to components, low maintenance efficiency, safety hazards and lack of standardized operation procedures in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A specialized device for disassembling and assembling rubber strips on a vibrating trough rocker arm includes a worktable, a frame, a drive assembly, a conical fixture, and a fixture base plate. The frame is fixedly mounted on the worktable, and the drive assembly is installed inside the worktable and extends to the top of the frame to provide power for disassembly and assembly. The conical fixture is detachably disposed between the actuating end of the drive assembly and the central support of the rocker arm, for transmitting pressure and guiding the rubber strip during disassembly and assembly. The fixture base plate is detachably disposed on the frame for positioning the rocker arm, the central support, and the rubber strip during installation.

[0007] Preferably, the drive assembly is a manual hydraulic drive assembly, including a cylinder drive assembly installed inside the workbench, a jack located on the top of the frame, and an oil supply pipe connecting the two, wherein the piston rod of the jack serves as the actuating end.

[0008] Preferably, the conical tooling includes a cylinder and a regular square truncated pyramid coaxially connected, and each edge of the regular square truncated pyramid is chamfered; the top surface area of ​​the regular square truncated pyramid is smaller than the mounting hole surface of the rocker arm rubber strip, and the bottom surface area of ​​the regular square truncated pyramid is smaller than the rectangular surface of the rocker arm center support.

[0009] Preferably, the tooling base plate includes a base plate and four circumferentially distributed triangular bosses disposed on the base plate. The inner surface formed by the combination of the four triangular bosses is nested and fitted with the rectangular outer surface of the rocker arm center support, and the outer surface formed by the combination of the four triangular bosses is nested and fitted with the rectangular inner hole on the rocker arm for mounting the rubber strip. Right angle sides are formed between adjacent triangular bosses for preliminary positioning of the rubber strip.

[0010] Preferably, the workbench is a storage cabinet made of metal material, with multiple partitions inside and an iron plate on its surface for bearing disassembly and assembly operations; the workbench surface is provided with a movable cover plate corresponding to the position of the hydraulic cylinder drive assembly.

[0011] Preferably, the frame includes an integrally welded steel bracket, the top of the steel bracket is fixed to the jack by a locking nut, and the side of the steel bracket is welded with a jack bracket for assisting in fixing the jack; the steel bracket is provided with a rectangular through hole for passing through the rocker arm center bracket.

[0012] Preferably, when disassembling the rubber strip, the rocker arm to be disassembled is placed horizontally on the machine frame, with the hole of the rocker arm rubber strip aligned with the rectangular through hole of the machine frame. The conical tool is placed between the piston rod of the jack and the central support of the rocker arm. By driving the jack to squeeze, the rubber strip and the central support are disassembled from the rocker arm.

[0013] Preferably, when installing the rubber strip, the tooling base plate is placed horizontally on the machine frame and aligned with the rectangular through hole. The rocker arm to be installed is nested and inserted into the triangular boss of the tooling base plate. The new rubber strip is inserted along the right-angle side of the tooling base plate for initial positioning. The conical tooling is inserted into the center of the rubber strip and the rocker arm center support is pressed onto the upper surface of the conical tooling. By driving the jack to squeeze, the center support and the rubber strip are pressed into the rocker arm mounting hole.

[0014] Preferably, the pressing action of the jack is controlled by the hydraulic handle of the manually cranked hydraulic cylinder drive assembly, and the pressing speed and pressure are adjusted by manual operation.

[0015] Preferably, during the disassembly and assembly of the rubber strip, the conical tool is used for two working conditions: during disassembly, it acts as a pressure transmission medium to push out the central support and rubber strip; during installation, it acts as a guide and compaction tool to guide the central support to embed and compact the rubber strip.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: A specialized disassembly and assembly device, consisting of a workbench, frame, drive assembly, conical fixture, and fixture base plate, enables mechanically assisted disassembly and assembly of the rocker arm rubber strip. Compared to the traditional method of manually hammering and prying, this device uses the drive assembly to provide stable and controllable pressure, replacing impact loads and effectively preventing rocker arm deformation, damage to the mounting groove, and breakage of the rubber strip lip, achieving non-destructive disassembly and assembly of the rubber strip. The conical fixture and fixture base plate, precisely matched to the rocker arm, rubber strip, and central support, ensure alignment and consistent installation depth during disassembly and assembly, standardizing repair quality. This device significantly improves disassembly and assembly efficiency, requiring only one person to operate, avoiding the safety risks of tool injuries. Furthermore, the workbench integrates storage functionality for easy storage of parts and tools. The device is compact, easy to operate, and cost-effective, making it suitable for rapid on-site repair work. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention; Figure 2 This is a schematic diagram of the frame structure of the present invention; Figure 3 This is a schematic diagram of the conical tooling structure of the present invention; Figure 4 This is a schematic diagram of the tooling base plate structure of the present invention.

[0018] In the diagram: 1. Workbench; 2. Hydraulic cylinder drive assembly; 3. Movable cover plate; 4. Frame; 5. Conical tooling; 6. Tooling base plate; 7. Steel bracket; 8. Jack bracket; 9. Jack; 10. Locking nut; 11. Oil pipe; 12. Rectangular through hole; 14. Cylinder; 15. Top surface; 16. Regular square frustum; 17. Bottom surface; 18. Base plate; 19. Triangular boss; 20. Inner surface; 21. Outer surface; 22. Right-angled side; 23. Rubber strip; 24. Central support. Detailed Implementation

[0019] To ensure a clear and complete description of the technical solutions in the embodiments of the present invention, and to make the features and advantages more apparent and understandable, the specific implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1 to 4 This invention provides a specialized device for disassembling and assembling rubber strips on a vibratory trough rocker arm, comprising a workbench 1, a frame 4, a drive assembly, a conical fixture 5, and a fixture base plate 6. The frame 4 is fixedly mounted on the workbench 1. The drive assembly is installed inside the workbench 1 and extends to the top of the frame 4, providing power for disassembly and assembly. The conical fixture 5 is detachably disposed between the moving end of the drive assembly and the central support 24 of the rocker arm, transmitting pressure and guiding the rubber strip 23 during disassembly and assembly. The fixture base plate 6 is detachably disposed on the frame 4, positioning the rocker arm, central support 24, and rubber strip 23 during installation. Specifically, the workbench 1 is a metal storage cabinet with multiple internal partitions for storing the vibratory trough rocker arm, rubber strip 23, and necessary tools for disassembly and assembly. The surface of the workbench 1 is a high-strength iron plate, facilitating disassembly and maintenance. The frame 4 is fixedly mounted on the workbench 1 by screws passing through mounting holes. The drive assembly provides the power for disassembly and assembly. In this embodiment, a manual hydraulic drive assembly is used, including a cylinder drive assembly 2 installed inside the workbench 1, a jack 9 located on the top of the frame 4, and an oil supply pipe 11 connecting the two. A movable cover plate 3 is provided on the surface of the workbench 1 corresponding to the position of the cylinder drive assembly 2. It is opened during operation to control the cylinder drive assembly 2, and closed when not in operation to seal and protect it and expand the surface area of ​​the workbench.

[0021] By combining the workbench 1, frame 4, drive assembly, conical tooling 5 and tooling base plate 6, a mechanical structure specifically for the disassembly and assembly of the rocker arm rubber strip 23 is constructed, replacing the traditional manual hammering operation, providing a stable and controllable power foundation for the disassembly and assembly process, and avoiding rocker arm deformation or damage to the mounting groove caused by impact load.

[0022] The drive assembly is a manual hydraulic drive assembly, including a cylinder drive assembly 2 installed inside the workbench 1, a jack 9 set on the top of the frame 4, and an oil supply pipe 11 connecting the two, with the piston rod of the jack 9 serving as the actuating end.

[0023] Specifically, the frame 4 includes an integrally welded steel support 7. The top of the steel support 7 is secured to the jack 9 by a locking nut 10, and the side of the steel support 7 is welded with a jack support 8 for further securing the jack 9. The steel support 7 has a rectangular through hole 12 for passing through the rocker arm center support 24.

[0024] The manual hydraulic drive assembly, consisting of cylinder drive component 2, jack 9 and oil supply pipe 11, is used as the power source, which realizes the stable output and stepless adjustment of disassembly and assembly pressure. The operator can control the extrusion speed according to the actual resistance, thus eliminating the impact load characteristics of the traditional hammering method from the power source.

[0025] The conical tooling 5 includes a cylinder 14 and a square frustum 16 connected coaxially. Each edge of the square frustum 16 is chamfered. The area of ​​the top surface 15 of the square frustum 16 is smaller than the mounting hole surface of the rocker arm rubber strip 23, and the area of ​​the bottom surface 17 of the square frustum 16 is smaller than the rectangular surface of the rocker arm center support 24.

[0026] Specifically, the conical fixture 5 is detachably mounted between the piston rod of the jack 9 and the central support 24 of the rocker arm. The conical fixture 5 includes a coaxially connected cylinder 14 and a regular square truncated pyramid 16, with each edge of the regular square truncated pyramid 16 having a chamfer. The area of ​​the top surface 15 of the regular square truncated pyramid 16 is smaller than the mounting hole surface of the rocker arm rubber strip 23, facilitating the conical fixture 5 to pass through the rocker arm during installation; the area of ​​the bottom surface 17 of the regular square truncated pyramid 16 is smaller than the rectangular surface of the central support 24 of the rocker arm, facilitating the compaction of the outer surface of the rubber strip during installation.

[0027] Through the conical structure of the square truncated pyramid 16 and the chamfered edge design of the conical tool 5, the conical tool 5 can automatically center and smoothly transmit pressure during disassembly and assembly, avoiding stress concentration that could damage the lip of the rubber strip 23 or the central support 24, thus achieving non-destructive disassembly and assembly.

[0028] The tooling base plate 6 includes a base plate 18 and four triangular protrusions 19 arranged in a circular pattern on the base plate 18. The inner surface 20 formed by the combination of the four triangular protrusions 19 is nested and engaged with the rectangular outer surface of the rocker arm center support 24. The outer surface 21 formed by the combination of the four triangular protrusions 19 is nested and engaged with the rectangular inner hole on the rocker arm where the rubber strip 23 is installed. Right angle sides 22 are formed between adjacent triangular protrusions 19 for preliminary positioning of the rubber strip 23.

[0029] The nested fit between the inner surface 20 formed by the four triangular protrusions 19 and the rectangular outer surface of the rocker arm center support 24 means that when installing the rubber strip 23, the rocker arm center support 24 is placed within the space enclosed by the four triangular protrusions 19, so that the four rectangular outer surfaces of the center support 24 are respectively in contact with the inner surfaces 20 of the four triangular protrusions 19, thereby restricting the horizontal displacement of the center support 24. The nested fit between the outer surface 21 formed by the four triangular protrusions 19 and the rectangular inner hole on the rocker arm where the rubber strip 23 is installed means that the rectangular inner hole of the rocker arm is fitted onto the outer surface 21 of the four triangular protrusions 19, so that the four inner walls of the rectangular inner hole of the rocker arm are respectively in contact with the outer surfaces 21 of the four triangular protrusions 19, thereby restricting the horizontal displacement of the rocker arm.

[0030] The triangular boss 19 of the tooling base plate 6 is combined to achieve bidirectional nesting positioning between the rocker arm, the central support 24 and the tooling base plate 6, ensuring the coaxiality and centering of the three during installation, so that the installation depth and angle of the rubber strip 23 are consistent, and improving the standardization level of maintenance quality.

[0031] Specifically, the tooling base plate 6 is detachably mounted on the frame 4, including a base plate 18 and four circumferentially distributed triangular bosses 19 on the base plate 18. The inner surface 20 formed by the combination of the four triangular bosses 19 is nested and engaged with the rectangular outer surface of the rocker arm center support 24, and the outer surface 21 formed by the combination of the four triangular bosses 19 is nested and engaged with the rectangular inner hole on the rocker arm where the rubber strip 23 is mounted. Right angle sides 22 are formed between adjacent triangular bosses 19 for initial positioning of the rubber strip 23.

[0032] The workbench 1 is a storage cabinet made of metal material, with multiple partitions inside and an iron plate on its surface for bearing disassembly and assembly operations; the workbench 1 has a movable cover plate 3 on its surface corresponding to the position of the hydraulic cylinder drive assembly 2.

[0033] The workbench 1 integrates storage functions, making it easy to store rubber strips 23, central support 24 and disassembly tools. The design of the movable cover plate 3 facilitates the maintenance and repair of the internal hydraulic cylinder drive assembly 2, improving the functional integration and field applicability of the device.

[0034] The frame 4 includes an integrally welded steel bracket 7. The top of the steel bracket 7 is fixed to the jack 9 by a locking nut 10. The side of the steel bracket 7 is welded with a jack bracket 8 for assisting in fixing the jack 9. The steel bracket 7 has a rectangular through hole 12 for passing through the rocker arm center bracket 24.

[0035] The integrally welded steel bracket 7 and jack bracket 8 ensure the stability and verticality of the jack 9 during operation. The rectangular through hole 12 provides clearance for the central support 24 during disassembly, avoiding structural interference.

[0036] When disassembling the rubber strip 23, place the rocker arm to be disassembled horizontally on the frame 4, align the hole of the rocker arm rubber strip with the rectangular through hole 12 of the frame 4, place the conical tool 5 between the piston rod of the jack 9 and the center support 24 of the rocker arm, and squeeze by driving the jack 9 to make the rubber strip 23 and the center support 24 disengage from the rocker arm.

[0037] During disassembly, the conical tool 5 acts as a pressure transmission medium to evenly apply the jacking force of the jack 9 to the central support 24, so that the rubber strip 23 and the central support 24 are smoothly disengaged from the rocker arm as a whole, avoiding damage to the installation groove caused by the traditional pry bar method.

[0038] Specifically, when installing the rubber strip 23, the tooling base plate 6 is placed horizontally on the frame 4 and aligned with the rectangular through hole 12. The rocker arm to be installed is nested and inserted into the triangular boss 19 of the tooling base plate 6. The new rubber strip 23 is inserted along the right angle side 22 of the tooling base plate 6 for initial positioning. The conical tooling 5 is inserted into the center of the rubber strip 23 and the rocker arm center support 24 is pressed onto the upper surface of the conical tooling 5. By driving the jack 9 to squeeze, the center support 24 and the rubber strip 23 are pressed into the rocker arm mounting hole.

[0039] During installation, the triangular boss 19 and right-angled side 22 of the tooling base plate 6 provide step-by-step positioning guidance for the rocker arm, rubber strip 23 and central support 24. The conical tooling 5 acts as a guide tool to press the central support 24 into the center of the rubber strip 23, ensuring the consistency of the installation of each component.

[0040] The pressing action of the jack 9 is controlled by the hydraulic handle of the manually cranked hydraulic cylinder drive assembly 2, and the pressing speed and pressure are adjusted manually. The operator can adjust the pressing speed and pressure of the jack 9 in real time according to the actual disassembly and assembly resistance by manually cranking the hydraulic handle of the hydraulic cylinder drive assembly 2, so as to avoid damage to the parts or improper installation due to excessive or insufficient pressure, and achieve precise control of the disassembly and assembly process.

[0041] During the disassembly and assembly of the rubber strip 23, the conical tool 5 is used for two working conditions: during disassembly, it acts as a pressure transmission medium to push out the central support 24 and the rubber strip 23; during installation, it acts as a guide and compaction tool to guide the central support 24 to embed and compact the rubber strip 23. By reusing the same conical tool 5 in both disassembly and installation conditions, the modular design of the tooling is realized, the number of special tools is reduced, the manufacturing cost is lowered, and the consistency of pressure transmission and guiding functions during disassembly and assembly is ensured.

[0042] The procedure for removing the rubber strip is as follows: Place the rocker arm (with the rubber strip 23 to be replaced) horizontally on the frame 4, aligning the hole of the rubber strip 23 on the rocker arm with the rectangular through hole 12 on the frame 4. Select a suitable conical fixture 5 according to the specifications of the rubber strip 23, and place the conical fixture 5 between the piston rod of the jack 9 and the center support 24 of the rocker arm. Open the movable cover plate 3, and manually crank the hydraulic handle of the cylinder drive assembly 2 to press the conical fixture 5 firmly on both sides. Continue to slowly crank the hydraulic handle, and the piston rod of the jack 9 extends, transmitting pressure through the conical fixture 5, causing the rubber strip 23 and the center support 24 of the rocker arm to slowly disengage and be removed from the rectangular through hole 12. Release the pressure, and retract the piston rod of the jack 9.

[0043] The workflow for installing rubber strips is as follows: Place the fixture base plate 6 horizontally on the frame 4 and align it with the rectangular through hole 12 on the frame 4. Insert the rocker arm containing the new rubber strip 23 into the triangular boss 19 of the fixture base plate 6. Insert the four new rubber strips 23 tightly along the four right-angled sides 22 of the fixture base plate 6 to initially position the rubber strips 23. Insert the conical fixture 5 into the center of the four pre-installed new rubber strips 23, slowly inserting until resistance is felt. Press the rectangular bottom surface of the central support 24 on the rocker arm, which is used to fix the rubber strips 23, onto the upper surface of the conical fixture 5, with the other side facing the jack 9. Open the movable cover plate 3 and manually crank the hydraulic handle of the cylinder drive assembly 2 to press the two sides of the central support 24 firmly. Continue to slowly crank the hydraulic handle, and the piston rod of the jack 9 extends, allowing the central support 24 and the rubber strips 23 to be slowly squeezed into the rubber strip mounting hole of the rocker arm until flattened. Check if the rubber strips 23 are installed correctly. Release the pressure to retract the piston rod of jack 9. Close the movable cover 3 and place the tools and rocker arm into the storage cabinet on the workbench 1.

[0044] During the above-mentioned operation, the conical tool 5 acts as a pressure transmission medium during disassembly to push out the central support 24 and rubber strip 23, and during installation, it acts as a guide and compaction tool to guide the central support 24 into and compact the rubber strip 23. The pressing action of the jack 9 is controlled by the hydraulic handle of the manually cranked hydraulic cylinder drive assembly 2. The pressing speed and pressure are adjusted manually, which has the advantages of large load-bearing capacity, easy control, and buffer protection.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A special device for disassembling and assembling the rubber strip of a conveyor trough rocker arm, characterized in that: The assembly includes a workbench (1), a frame (4), a drive assembly, a conical fixture (5), and a fixture base plate (6). The frame (4) is fixedly installed on the workbench (1). The drive assembly is installed inside the workbench (1) and extends to the top of the frame (4) to provide power for disassembly and assembly. The conical fixture (5) is detachably disposed between the actuating end of the drive assembly and the central support (24) of the rocker arm to transmit pressure and guide the rubber strip (23) during disassembly and assembly. The fixture base plate (6) is detachably disposed on the frame (4) to position the rocker arm, the central support (24), and the rubber strip (23) when installing the rubber strip (23).

2. The special device for disassembling and assembling the rubber strip of the conveyor trough rocker arm according to claim 1, characterized in that: The drive assembly is a manual hydraulic drive assembly, including a cylinder drive assembly (2) installed inside the workbench (1), a jack (9) set on the top of the frame (4), and an oil supply pipe (11) connecting the two, with the piston rod of the jack (9) serving as the actuating end.

3. The special device for disassembling and assembling the rubber strip of the conveyor trough rocker arm according to claim 2, characterized in that: The conical fixture (5) includes a coaxially connected cylinder (14) and a square truncated pyramid (16). Each edge of the square truncated pyramid (16) is chamfered. The area of ​​the top surface (15) of the square truncated pyramid (16) is smaller than the mounting hole surface of the rocker arm rubber strip (23), and the area of ​​the bottom surface (17) of the square truncated pyramid (16) is smaller than the rectangular surface of the rocker arm center support (24).

4. The special device for disassembling and assembling the rubber strip of the conveying vibrating trough rocker arm according to claim 3, characterized in that: The tooling base plate (6) includes a base plate (18) and four triangular bosses (19) arranged in a circular pattern on the base plate (18). The inner surface (20) formed by the combination of the four triangular bosses (19) is nested and fitted with the rectangular outer surface of the rocker arm center support (24). The outer surface (21) formed by the combination of the four triangular bosses (19) is nested and fitted with the rectangular inner hole on the rocker arm where the rubber strip (23) is installed. Right angle sides (22) are formed between adjacent triangular bosses (19) for preliminary positioning of the rubber strip (23).

5. The special device for disassembling and assembling the rubber strip of the conveying trough rocker arm according to claim 4, characterized in that: The workbench (1) is a storage cabinet made of metal material, with multiple partitions inside and an iron plate on its surface for bearing disassembly and assembly operations; the workbench (1) has a movable cover plate (3) on its surface corresponding to the position of the hydraulic cylinder drive assembly (2).

6. The special device for disassembling and assembling the rubber strip of the conveyor trough rocker arm according to claim 5, characterized in that: The frame (4) includes an integrally welded steel bracket (7), the top of the steel bracket (7) is fixed to the jack (9) by a locking nut (10), and the side of the steel bracket (7) is welded with a jack bracket (8) for assisting in fixing the jack (9); the steel bracket (7) is provided with a rectangular through hole (12) for passing through the rocker arm center bracket (24).

7. The special device for disassembling and assembling the rubber strip of the conveyor trough rocker arm according to claim 6, characterized in that: When disassembling the rubber strip (23), place the rocker arm to be disassembled horizontally on the frame (4), align the hole of the rocker arm rubber strip with the rectangular through hole (12) of the frame (4), place the conical tool (5) between the piston rod of the jack (9) and the center support (24) of the rocker arm, and squeeze by driving the jack (9) to make the rubber strip (23) and the center support (24) disengage from the rocker arm.

8. The special device for disassembling and assembling the rubber strip of the conveyor trough rocker arm according to claim 7, characterized in that: When installing the rubber strip (23), place the tooling base plate (6) horizontally on the frame (4) and align it with the rectangular through hole (12). Insert the rocker arm to be installed into the triangular boss (19) of the tooling base plate (6). Insert the new rubber strip (23) along the right angle side (22) of the tooling base plate (6) for initial positioning. Insert the conical tooling (5) into the center of the rubber strip (23) and press the rocker arm center support (24) onto the upper surface of the conical tooling (5). By driving the jack (9) to squeeze, the center support (24) and the rubber strip (23) are pressed into the rocker arm mounting hole.

9. The special device for disassembling and assembling the rubber strip of the conveyor trough rocker arm according to claim 8, characterized in that: The squeezing action of the jack (9) is controlled by the hydraulic handle of the manually operated hydraulic cylinder drive assembly (2), and the squeezing speed and pressure are adjusted by manual operation.

10. The special device for disassembling and assembling the rubber strip of the conveyor trough rocker arm according to claim 9, characterized in that: During the disassembly and assembly of the rubber strip (23), the conical tool (5) is used for two working conditions: during disassembly, it acts as a pressure transmission medium to push out the central support (24) and the rubber strip (23); during installation, it acts as a guide and compaction tool to guide the central support (24) to embed and compact the rubber strip (23).

Images