A drive chain dismounting tool

Abstract

The application discloses a transmission chain dismounting tool, and belongs to the technical field of mechanical maintenance tools. The tool comprises a supporting assembly, a tensioning assembly and a driving assembly. The tensioning assembly is provided with two groups of linear sliding rails arranged in parallel, and at least two tensioning arms are slidably arranged on each sliding rail. The driving assembly is arranged on the supporting assembly and is used for driving the two groups of sliding rails to move synchronously towards or away from each other. Corresponding tensioning arms on different sliding rails can be horizontally aligned to form a clamping unit. During use, the clamping unit can be clamped into the rollers of multiple rows of transmission chains at the same time, and the synchronous tensioning or releasing of the multiple rows of chains can be realized under the action of the driving assembly. The problems that the multiple rows of chains can only be dismounted and mounted step by step, the efficiency is low, and there are hidden dangers in the prior art are solved, the maintenance and equipment downtime are significantly shortened, the risk that the chains are unevenly stressed and fall off is avoided through mechanical synchronous driving, the operation safety is greatly improved, and the tool is suitable for the dismounting and mounting operation of single-row and multiple-row chains.

Description

Technical Field

[0001] This application relates to the field of mechanical repair tools, specifically a transmission chain disassembly and assembly tool, which is particularly suitable for the synchronous disassembly and assembly of multi-row transmission chains. Background Technology

[0002] In tobacco processing production lines, storage tank drive chains are core components ensuring the continuous and efficient operation of the equipment. These chains typically have a large number of links (usually ≥80 links), considerable overall length, and heavy weight (≥30kg). In actual operation, once the chain is damaged and requires repair, the disassembly and assembly process becomes an extremely challenging task, mainly due to the physical characteristics of the chain itself and the limitations of existing technology.

[0003] Existing technologies for disassembling and assembling drive chains, especially multi-row drive chains, have significant drawbacks: a general lack of efficient specialized tools, forcing operators to rely primarily on traditional methods and manual operation. While disassembly and assembly can be somewhat managed for single-row chains, for double-row or higher multi-row drive chains, current technologies require operators to disassemble and assemble each row of chain step-by-step, making synchronous operation impossible (for example, repairing a double-row chain takes approximately 2.5 times longer than a single-row chain). This step-by-step approach is not only cumbersome and inefficient, significantly extending repair and equipment downtime, but more importantly, during manual chain tensioning (usually requiring two people), uneven tension can easily cause the chain to suddenly detach, posing a safety threat to operators and potentially damaging surrounding equipment. Solving the problem of rapid, safe, and synchronous tensioning and disassembly / assembly of single-row or multi-row drive chains, effectively shortening repair time and eliminating safety hazards, has become a pressing technological bottleneck that needs to be overcome in this field.

[0004] Therefore, this application proposes a transmission chain disassembly and assembly tool that can realize the synchronous tensioning and disassembly operations of single or multiple rows of chains, significantly improving maintenance efficiency and operational safety. Utility Model Content

[0005] The main purpose of this application is to provide a transmission chain assembly and disassembly tool, which aims to solve the technical problems of fast, safe, and synchronous tensioning and assembly and disassembly of single-row or multi-row transmission chains.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A drive chain disassembly and assembly tool, comprising:

[0008] Support components, used for support;

[0009] The tensioning assembly includes two sets of parallel linear slide rails and at least two tensioning arms slidably mounted on each slide rail;

[0010] A drive component, mounted on the support component, is used to drive the two sets of slide rails to move synchronously towards or away from each other;

[0011] Among them, the tensioning arms on different slide rails can be aligned laterally to form a snap-fit ​​unit, which is used to simultaneously snap into the rollers of multiple rows of transmission chains, and realize the synchronous tensioning or release of multiple rows of chains under the action of the drive component.

[0012] As a further improvement of this application, the drive assembly includes: a dual-axis motor, two lead screws with their axes facing each other, and two transmission blocks respectively threaded onto the two lead screws; the two output ends of the dual-axis motor are coaxially connected to the ends of the two lead screws that are close to each other via couplings, the threads of the two lead screws are in opposite directions, the two transmission blocks are fixedly connected to the bottom of the two sets of slide rails respectively, and the support assembly is provided with linear guide grooves to restrict the transmission blocks to move only along the direction of the lead screw axis; when the dual-axis motor is controlled to do work, the two lead screws rotate synchronously, driving the two transmission blocks to drive the two sets of slide rails to move synchronously towards or away from each other.

[0013] As a further improvement of this application, the support assembly includes a housing and two base plates symmetrically fixed to both sides of the housing; each base has a guide groove on its top along the axial direction of the lead screw, the width of the guide groove is in clearance fit with the lateral dimension of the transmission block, and the two transmission blocks are respectively embedded in the two guide grooves; the ends of the two lead screws that are far apart from each other are rotatably connected to the far ends of the two base plates through bearings.

[0014] As a further improvement of this application, the slide rail is a T-slot guide rail, the tensioning arm is slidably connected to the slide rail via a T-shaped slider, and the T-shaped slider is fixed to any position of the slide rail by a locking bolt.

[0015] As a further improvement of this application, the top of the tensioning arm is provided with an arc-shaped pawl that bends toward the center of the two slide rails.

[0016] The technical solution provided in this application may include the following beneficial effects:

[0017] In use, this application employs a support component, a tensioning component comprising two sets of parallel linear slide rails and slidable tensioning arms, and a drive component that drives the two sets of slide rails to move synchronously. This allows the corresponding tensioning arms on different slide rails to be laterally aligned to form a snap-fit ​​unit, enabling the simultaneous snap-fit ​​of rollers from multiple rows of chains. Under the action of the drive component, the synchronous tensioning or release of multiple rows of chains is achieved. This effectively solves the problem of existing technologies that require step-by-step disassembly and assembly of multiple rows of chains, resulting in extremely low efficiency (e.g., the time required for a double-row chain is approximately 2.5 times that of a single-row chain), significantly reducing maintenance and equipment downtime. Simultaneously, the mechanically driven synchronous tensioning replaces dangerous manual operation, completely avoiding the risk of sudden chain detachment due to uneven force, greatly improving operational safety, and possessing versatility for handling single-row or multi-row chains. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of a transmission chain disassembly and assembly tool;

[0020] Figure 2 This is a schematic diagram of the unfolded structure of a transmission chain disassembly and assembly tool;

[0021] Figure label:

[0022] 1. Support assembly; 11. Housing; 12. Base plate; 121. Guide groove; 2. Tensioning assembly; 21. Slide rail; 22. Tensioning arm; 221. Arc-shaped claw; 3. Drive assembly; 31. Dual-axis motor; 32. Lead screw; 33. Transmission block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] Figure 1 An embodiment of a drive chain disassembly and assembly tool according to this application is shown; see [link to relevant documentation]. Figure 1In this embodiment, the transmission chain disassembly and assembly tool includes: a support assembly, a tensioning assembly, and a drive assembly.

[0025] Among them, see Figure 1 The tensioning assembly includes two sets of parallel linear guide rails and at least two tensioning arms slidably mounted on each guide rail. A drive assembly, located on the support assembly, drives the two sets of guide rails to move synchronously towards or away from each other. The corresponding tensioning arms on different guide rails can be laterally aligned to form a snap-fit ​​unit, used to simultaneously engage the rollers of multiple rows of drive chains. Under the action of the drive assembly, the synchronous tensioning or release of multiple rows of chains is achieved, thus enabling synchronous tensioning and disassembly of single or multiple rows of drive chains. This solves the problem of existing technologies that require step-by-step disassembly and assembly of multiple rows of chains, resulting in extremely low efficiency (e.g., double-row chains take approximately 2.5 times longer than single-row chains), significantly reducing maintenance and equipment downtime. Simultaneously, the mechanically driven synchronous tensioning replaces dangerous manual operation, completely avoiding the risk of sudden chain detachment due to uneven force, greatly improving operational safety, and possessing versatility in handling single or multiple rows of chains.

[0026] Further, see Figure 2 The drive assembly includes: a dual-axis motor, two lead screws with their axes facing each other, and two transmission blocks threaded onto the two lead screws respectively. The two output ends of the dual-axis motor are coaxially connected to the ends of the two lead screws that are close to each other via couplings, and the threads of the two lead screws are in opposite directions. The two transmission blocks are fixedly connected to the bottom of the two sets of slide rails respectively. The support assembly is provided with linear guide grooves to restrict the transmission blocks to move only along the axis of the lead screws. When the dual-axis motor is working, the two lead screws rotate synchronously, driving the two transmission blocks to move the two sets of slide rails synchronously towards or away from each other, so as to ensure that the tension of the multi-row chains is evenly distributed, and completely solves the problem of chain twisting or falling off caused by uneven force in traditional manual operation.

[0027] Further, see Figure 2 The support assembly includes a housing and two base plates symmetrically fixed to both sides of the housing. Each base has a linear guide groove on its top along the axial direction of the lead screw. The width of the guide groove is clearance-fitted with the lateral dimension of the transmission block, and the two transmission blocks are respectively embedded in the two guide grooves. The ends of the two lead screws, which are far apart from each other, are rotatably connected to the far ends of the two base plates via bearings. Through the clearance-fit structure between the base plates and the linear limiting grooves, combined with the support of the far-end bearings of the lead screws, the synchronous tensioning of multiple chains is ensured.

[0028] Further, see Figure 2The slide rail is a T-slot guide rail, and the tensioning arm is slidably connected to the slide rail via a T-shaped slider. The T-shaped slider is fixed to any position on the slide rail by locking bolts. This design adapts to the disassembly and assembly needs of multi-row chains with different spacings, saves specification switching time compared to traditional tools, and completely solves the problem of slider displacement loss of control in dusty environments through locking bolts.

[0029] Further, see Figure 2 The tensioning arm has an arc-shaped claw at its top, which is used to fit against the outer wall of the chain roller to form an anti-disengagement locking structure, solving the problem of accidental chain breakage caused by point contact in traditional planar claws. It is especially suitable for the oily and vibrating working conditions of tobacco machinery.

[0030] Optionally, the top of each of the two tension arms is provided with an arc-shaped pawl that curves toward the center of the two slide rails, so as to engage the chain during use.

[0031] Optionally, the number of tensioning arms on each slide rail is 2–4, and the spacing between adjacent tensioning arms is adjustable to 1–3 times the chain pitch.

[0032] For those skilled in the art, all electrical components and parts in this case are general standard parts or parts known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. All models are compatible with this solution and can operate normally. All electrical components in this case are connected to their compatible power supplies through wires. According to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence should refer to the working principle below, and the electrical connection is completed by the sequential operation of each electrical component. The detailed connection method is a well-known technology in the art, and the electrical control will not be described further.

[0033] One specific application of this embodiment is:

[0034] In use, first, adjust the position of the tensioning arm on each linear guide rail according to the number and spacing of the multiple chains to be disassembled or assembled. Loosen the locking bolts of the T-slider, slide the tensioning arm to precisely align the corresponding tensioning arms on different guide rails laterally to form a snap-fit ​​unit, and tighten the locking bolts to fix the position. Then, simultaneously snap the arc-shaped claws at the top of each snap-fit ​​unit into the rollers of the corresponding chain row. Next, start the dual-axis motor to drive the two screws with opposite thread directions to rotate synchronously, driving the transmission blocks that are threaded to them and embedded in the guide grooves of the support component base plate to move axially. This drives the two sets of guide rails and their tensioning arms to move synchronously and precisely in opposite directions (tensioning) or in opposite directions (releasing), achieving synchronous and uniform tensioning or releasing of multiple chain rows. Perform the disassembly and assembly of chain links while the chain is stably tensioned by the tool. After completion, reverse the motor to release the chain tension, and finally remove the claws and take out the tool. The entire process ensures uniform force on multiple chain rows through mechanical synchronous drive, significantly improving efficiency and safety.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tool for disassembling and assembling a transmission chain, characterized in that, include: Support components, used for support; The tensioning assembly includes two sets of parallel linear slide rails and at least two tensioning arms slidably mounted on each slide rail; A drive component, mounted on the support component, is used to drive the two sets of slide rails to move synchronously towards or away from each other; Among them, the tensioning arms on different slide rails can be aligned laterally to form a snap-fit ​​unit, which is used to simultaneously snap into the rollers of multiple rows of transmission chains, and realize the synchronous tensioning or release of multiple rows of chains under the action of the drive component.

2. The transmission chain disassembly and assembly tool according to claim 1, characterized in that, The drive assembly includes: a dual-axis motor, two lead screws with their axes facing each other, and two transmission blocks threaded onto the two lead screws respectively; the two output ends of the dual-axis motor are coaxially connected to the ends of the two lead screws that are close to each other via couplings, the threads of the two lead screws are in opposite directions, and the two transmission blocks are fixedly connected to the bottom of the two sets of slide rails respectively; the support assembly is provided with linear guide grooves to restrict the transmission blocks to move only along the axis of the lead screws; when the dual-axis motor is working, the two lead screws rotate synchronously, driving the two transmission blocks to move the two sets of slide rails synchronously towards or away from each other.

3. The transmission chain disassembly and assembly tool according to claim 2, characterized in that, The support assembly includes a housing and two base plates symmetrically fixed to both sides of the housing; each base has a guide groove on its top along the axial direction of the lead screw, the width of the guide groove is in clearance fit with the lateral dimension of the transmission block, and the two transmission blocks are respectively embedded in the two guide grooves; the ends of the two lead screws that are far apart from each other are rotatably connected to the far ends of the two base plates through bearings.

4. The transmission chain disassembly and assembly tool according to claim 1, characterized in that, The slide rail is a T-slot guide rail, and the tensioning arm is slidably connected to the slide rail via a T-shaped slider. The T-shaped slider is fixed to any position on the slide rail by a locking bolt.

5. The transmission chain disassembly and assembly tool according to claim 1, characterized in that, The top of the tensioning arm is provided with an arc-shaped pawl that bends toward the center of the two slide rails.

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