A roll installation and correction tool
By designing an elastic connection between the hammer section and the grip section handle, as well as a buffer protection cylinder, the vibration and impact problems in the installation of idler rollers and the alignment tools were solved, achieving the effect of reducing arm tremors and improving user comfort.
Patent Information
- Application Number
- CN202610531970.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-28
AI Technical Summary
The vibration and impact generated by the handle of the existing roller installation and correction tool during the striking process are transmitted to the operator's arm, which affects the health of the operator. In addition, the traditional bamboo handle is easily damaged and inconvenient to use.
A tool comprising a hammer section and a handle section is designed. The handle section is connected by a long strip-shaped elastomer, and the hammer section is slidable. Combined with a buffer protective cylinder, elastomers and rubber materials of different stiffness are used to reduce vibration and improve user comfort.
It effectively reduces arm tremors and impacts, improves user comfort, extends tool life, reduces labor fatigue, and is simple and safe to operate.
Smart Images

Figure CN122463078A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of equipment maintenance and assembly, and specifically to a tool for installing and correcting idler rollers. Background Technology
[0002] Existing handles for idler roller installation and alignment tools are mostly rigid (such as metal) or near-rigid (such as wooden sticks). When striking the idler roller, a portion of the impact force on the hammer is transmitted through the handle to the operator's hand, causing vibration in the operator's hand and arm. In cases of strong impact or frequent striking even with weak impact, this can adversely affect the operator's health. Currently, the hammer tools used for installing and aligning idler rollers generally consist of a hammer head and a wooden handle. The significant vibration generated by the hammer striking the idler roller is transmitted to the operator's hand through the handle, causing considerable vibration and impact. Because the idler roller must not be left with marks, otherwise the material will be damaged, a specialized tool is needed to maintain balanced force during installation and alignment. For this reason, bamboo handles are used to reduce vibration and impact between the hand and the handle. However, hammers with bamboo handles are inefficient, easily damaged, and inconvenient to use. Summary of the Invention
[0003] To address the shortcomings of the prior art, this invention provides a tool for installing and correcting idler rollers, which can effectively solve the above problems.
[0004] The technical solution adopted in this invention is: A tool for installing and correcting idler rollers includes a hammer and a handle, the handle being divided into a hammer section and a grip section; characterized in that: The hammer section handle is located at the head end, close to the hammer, while the grip section handle is located at the tail end, away from the hammer. The grip section handle is connected to the hammer via a long, elastic strip; The hammer handle has a sliding hole in the middle, which is fitted onto a long strip of elastic body, allowing it to slide radially along the long strip of elastic body.
[0005] Furthermore, The elastomer consists of two parts. The first elastomer is located at the head end and has greater stiffness. It has both greater stiffness and a certain degree of elastic deformation. The second elastic body is located at the tail end. It has lower stiffness and has a small stiffness but a large elastic deformation capacity.
[0006] Furthermore, The first elastic body is a steel elastic rod, and its cross-section can be rectangular or circular; the second elastic body is a metal helical spring tube.
[0007] Furthermore, The length ratio of the first elastomer to the second elastomer is 1:1-2.
[0008] Furthermore, The grip section handle is fixedly connected to the tail end of the second elastic body; the grip section handle has an annular protrusion at the head end, which is used to provide positioning and protection for the operator when holding the hand.
[0009] Furthermore, The hammer handle has a central through hole fitted onto a long strip of elastic body. The diameter of the central through hole is larger than the outer diameter of the elastic body, and the two have a fitting gap to allow the hammer handle to slide smoothly.
[0010] Furthermore, The end of the hammer handle also has a ring-shaped protrusion, which provides positioning and protection for the operator when holding the hammer, preventing the operator from holding it on the elastic body.
[0011] Furthermore, It also includes a buffer protection cylinder, which is made of elastic material and is cylindrical, and is fitted onto the second elastic body.
[0012] Furthermore, The front end of the first elastic body has a threaded rod. After the threaded rod is inserted into the hammer, it is connected and fixed to the hammer by a nut. The hammer has different weight specifications and is selected according to the type of work.
[0013] A method of using the tool described above for installing and correcting idler rollers, characterized in that: S1. Select and assemble the components; select the appropriate hammer and buffer sleeve according to the impact force required for the installation task, and assemble them on the tool. S2, impact of the operating tool; the operator holds the hammer section handle and the grip section handle with both hands respectively, according to their usage habits; In the initial stage, the hammer is at its lowest point, and the hammer handle and the grip handle are held close to each other with both hands. During the lifting phase, the hammer is at its highest point, and the hands holding the hammer section handle and the grip section handle are far apart from each other. During the impact phase, the hammer strikes the target (idle roller), and the hammer section handle moves closer to the grip section handle; S3. Complete installation and alignment; repeat the initial stage, lifting stage, and impact stage described above. Install and align the target object.
[0014] Compared with the prior art, the present invention has the following beneficial effects: With the above structure, the hammer section handle is equipped with a steel elastic rod, which can absorb vibration better and significantly reduce the vibration and impact on the arm caused by the handle when hammering. It can achieve balanced force during the installation and correction of the idler roller. The handle surface is equipped with a rubber layer to prevent hand injury, facilitate user operation, reduce labor fatigue, and has the characteristics of long service life, small rebound force, and simple operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the tool's external appearance. Figure 2 This is a cross-sectional view of the tool; In the diagram: 1. Hammer, 21. Hammer handle, 22. Grip handle, 31. First elastic body, 32. Second elastic body, 4. Buffer protective cylinder. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.
[0017] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is described as "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is described as "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," "top," "bottom," and similar expressions used in this document are for illustrative purposes only.
[0018] As shown in the figure A tool for installing and correcting idler rollers includes a hammer and a handle, the handle being divided into a hammer section and a grip section.
[0019] The hammer handle is located at the head end, close to the hammer, while the grip handle is located at the tail end, away from the hammer.
[0020] The handle is connected to the hammer via a long, elastic strip.
[0021] The hammer handle has a sliding hole in the middle, which is fitted onto a long strip of elastic body, allowing it to slide radially along the long strip of elastic body.
[0022] The elastomer consists of two parts. The first elastomer is located at the head end. It has greater stiffness and can be made of steel elastic rod. Its cross-section can be rectangular or circular. It has greater stiffness and a certain elastic deformation function.
[0023] The second elastic body is located at the tail end. It has low stiffness and can be made of metal helical spring tube, which has low stiffness but large elastic deformation.
[0024] The lengths of the first elastic body and the second elastic body can each account for half of the total length. Preferably, the length ratio of the first elastic body and the second elastic body can be 1:2.
[0025] The grip section handle is fixedly connected to the tail end of the second elastic body.
[0026] The grip section has an annular protrusion at the head end, which provides positioning and protection for the operator when holding the hand, preventing the operator from holding the hand on the second elastomer.
[0027] The hammer handle has a through hole in the middle that is fitted onto a long strip of elastic body, allowing it to slide radially along the long strip of elastic body.
[0028] The diameter of the central through hole is larger than the outer diameter of the elastic body, and the two have a fitting gap of about 5mm, which allows for smooth sliding of the hammer section handle.
[0029] The end of the hammer handle also has a ring-shaped protrusion, which provides positioning and protection for the operator when holding the hammer, preventing the operator from holding it on the elastic body.
[0030] In addition, a buffer protective sleeve can be selected as an option. The buffer protective sleeve is made of elastic material, such as polymer elastic material.
[0031] It is cylindrical in shape, about 10-30 cm in length, with a continuous opening on one side of the outer circumference. By applying external force, the buffer protective cylinder can be opened along the continuous opening and fitted onto the second elastic body. The inner diameter of the buffer protective cylinder is slightly smaller than the outer diameter of the second elastic body, which can form a stable position on the second elastic body.
[0032] Buffer protective cylinders come in different length specifications, and the appropriate one should be selected based on the type of work.
[0033] When in use, the hammer section handle slides along the elastic body towards the tail end. The buffer protective cylinder can prevent direct collision between the hammer section handle and the grip section handle, thus preventing hand pinching accidents and improving safety.
[0034] The front end of the first elastic body has a threaded rod. After the threaded rod is inserted into the hammer, it is connected and fixed to the hammer by a nut.
[0035] Hammers come in different weight specifications, and the appropriate type should be selected based on the type of work being done.
[0036] Both the hammer section handle and the grip section handle have their outer surfaces made of rubber to increase grip friction.
[0037] In practical use The appropriate hammer and buffer sleeve can be selected and assembled onto the tool according to the required impact force based on the installation task (model and size of the idler roller).
[0038] According to their usage habits, the operator holds the hammer section handle and the grip section handle with both hands respectively.
[0039] In the initial stage, the hammer is at its lowest point, and the hammer handle and the grip handle are held close to each other with both hands. During the lifting phase, the hammer is at its highest point, and the hands holding the hammer section handle and the grip section handle are far apart from each other. During the impact phase, the hammer strikes the target (idle roller), and the hammer section handle moves closer to the grip section handle.
[0040] Repeat the initial stage, lifting stage, and impact stage described above. This allows for the installation and correction of the target object.
[0041] Finally, it should be noted that the above description is merely an explanation of the present invention and is not intended to limit the invention. Although the present invention has been described in detail, those skilled in the art can still modify the technical solutions described above or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A tool for installing and correcting idler rollers, comprising a hammer and a handle, wherein the handle is divided into a hammer section and a gripping section; characterized in that: The hammer section handle is located at the head end, close to the hammer, while the grip section handle is located at the tail end, away from the hammer. The grip section handle is connected to the hammer via a long, elastic strip; The hammer handle has a sliding hole in the middle, which is fitted onto a long strip of elastic body, allowing it to slide radially along the long strip of elastic body.
2. The tool for installing and correcting idler rollers according to claim 1, characterized in that, The elastomer consists of two parts. The first elastomer is located at the head end and has greater stiffness. It has both greater stiffness and a certain degree of elastic deformation. The second elastic body is located at the tail end. It has lower stiffness and has a small stiffness but a large elastic deformation capacity.
3. The tool for installing and correcting idler rollers according to claim 2, characterized in that, The first elastic body is a steel elastic rod, and its cross-section can be rectangular or circular; the second elastic body is a metal helical spring tube.
4. The tool for installing and correcting idler rollers according to claim 2, characterized in that, The length ratio of the first elastomer to the second elastomer is 1:1-2.
5. The tool for installing and correcting idler rollers according to claim 2, characterized in that, The grip section handle is fixedly connected to the tail end of the second elastic body; the grip section handle has an annular protrusion at the head end, which is used to provide positioning and protection for the operator when holding the hand.
6. The tool for installing and correcting idler rollers according to claim 1, characterized in that, The hammer handle has a central through hole fitted onto a long strip of elastic body. The diameter of the central through hole is larger than the outer diameter of the elastic body, and the two have a fitting gap to allow the hammer handle to slide smoothly.
7. The tool for installing and correcting idler rollers according to claim 6, characterized in that, The end of the hammer handle also has a ring-shaped protrusion, which provides positioning and protection for the operator when holding the hammer, preventing the operator from holding it on the elastic body.
8. The tool for installing and correcting idler rollers according to claim 2, characterized in that, It also includes a buffer protection cylinder, which is made of elastic material and is cylindrical, and is fitted onto the second elastic body.
9. The tool for installing and correcting idler rollers according to claim 2, characterized in that, The front end of the first elastic body has a threaded rod. After the threaded rod is inserted into the hammer, it is connected and fixed to the hammer by a nut. The hammer has different weight specifications and is selected according to the type of work.
10. A method of using the tool for installing and correcting idler rollers as described in claim 1, characterized in that, S1. Select and assemble the components; select the appropriate hammer and buffer sleeve according to the impact force required for the installation task, and assemble them on the tool. S2, impact of the operating tool; the operator holds the hammer section handle and the grip section handle with both hands respectively, according to their usage habits; In the initial stage, the hammer is at its lowest point, and the hammer handle and the grip handle are held close together with both hands. During the lifting phase, the hammer is at its highest point, and the hands holding the hammer section handle and the grip section handle are far apart from each other. During the impact phase, the hammer strikes the target (idle roller), and the hammer section handle moves closer to the grip section handle; S3. Complete installation and alignment; repeat the initial stage, lifting stage, and impact stage described above. Install and align the target object.
