Special tool for installing automobile engine timing system

By designing and improving the structure of specialized tools, the problem of inaccurate installation caused by changes in the camshaft position was solved, enabling efficient and accurate installation of the engine timing system and adapting to different engine specifications.

CN223790387UActive Publication Date: 2026-01-13JIANGSU MECHANICAL & ELECTRICAL PRODUCTS BEARING CO LTD
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Patent Information

Application Number
CN202520035689.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2026-01-13
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

When installing the timing system of an existing automobile engine, the position of the camshaft is easily changed, resulting in inaccurate installation positioning and poor applicability. Conventional limiting methods are difficult to adapt to different engine specifications.

Method used

A specialized tool was designed, comprising a work plate, guide rod, movable block, spring, vertical handle, double-sided clamp, and measuring components. The position of the movable block is adjusted by the extension and retraction of the spring, the double-sided clamp and toothed block are used to ensure accurate positioning of the camshaft, and the measuring components are used to quickly measure the camshaft pitch, adapting to different engine specifications.

Benefits of technology

It improves the accuracy and applicability of engine timing system installation, ensures stable camshaft position, allows for quick belt replacement, adapts to different engine models, and enhances installation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special tool for installing a timing system of an automobile engine, which comprises a main body unit, a plurality of clamping units and a plurality of clamping units, and the translation unit comprises two guide rods, and the two ends of the two guide rods are fixedly connected with the inner walls of the corresponding movable openings. The camshaft is prevented from deviating when a belt is replaced through the acting force of the spring, the camshaft can be conveniently adjusted according to different intervals, the timing applicability of an engine is improved, the height of the double-face clamping plate is adjusted through vertical movement of the vertical handle, and the double-face clamping plate facilitates the bidirectional fixing effect on the camshaft; corresponding operation is carried out according to the installation requirement of an engine timing system, meanwhile, the tooth block effectively ensures accurate shaft timing of the cam shaft, the movable block moves to enable the connecting rod to drive the measuring paper to be unfolded, the distance or specification of the cam shaft is rapidly measured, and then a corresponding cam shaft belt is rapidly replaced. Dimension of the camshaft is prevented from affecting use.
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Description

Technical Field

[0001] This utility model relates to the technical field of engine timing, and in particular to a special tool for installing automotive engine timing systems. Background Technology

[0002] The timing system of an automotive engine refers to the timing coordination mechanism and technology required for the normal operation of the engine, ensuring that the valves open and close at the appropriate time and match the movement position of the piston.

[0003] In existing technologies, when installing the timing system of a car engine, the belt on the camshaft needs to be replaced, which changes the position of the camshaft. Since engine specifications and models vary, conventional camshafts use magnetic attraction to initially limit the wheel, which makes it easy for the wheel to misalign when rotating the camshaft for timing positioning later. This also makes it difficult for the equipment to be used with different engines, thus reducing the accuracy and applicability of timing installation and positioning. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned special tool for installing automobile engine timing system, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a special tool for installing the timing system of an automobile engine. It aims to solve the problem that "when installing the timing system of an automobile engine, it is necessary to replace the belt on the camshaft, which will change the position of the camshaft. Since the engine specifications and models are different, the conventional camshaft restriction uses the magnetic attraction to initially limit the wheel body. As a result, when rotating the camshaft for timing positioning later, the wheel body is prone to misalignment. At the same time, it is not conducive to the use of the equipment for different engine operations, which reduces the accuracy and applicability of timing installation and positioning."

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including:

[0008] The main unit includes a work plate, on which two movable openings are provided;

[0009] The translation unit includes two guide rods, both ends of which are fixedly connected to the inner wall of the corresponding movable opening. The arms of the two guide rods are slidably connected to movable blocks. Springs are sleeved on the side walls of the two guide rods that are far apart from each other. Horizontal handles are fixedly connected to the side walls of the two movable blocks that are far apart from each other. The two horizontal handles move through the working plate. A fixing component is provided on both movable blocks. A measuring component is provided on the working plate.

[0010] As a preferred embodiment of the special tool for installing the timing system of an automobile engine described in this utility model, the fixing component includes two vertical handles, both of which are slidably connected to corresponding movable blocks. The bottom ends of both vertical handles are fixedly connected to double-sided clamps, and toothed blocks are fixedly connected to both double-sided clamps. Both double-sided clamps are arranged in an X-structure.

[0011] As a preferred embodiment of the special tool for installing the timing system of an automobile engine described in this utility model, the measuring component includes a hollow cylinder, which is fixedly connected to the working plate. A measuring paper that can be stretched on both sides is provided inside the hollow cylinder. A connecting rod is fixedly connected to each of the two movable blocks, and the ends of the two connecting rods that are close to each other are fixedly connected to the corresponding measuring paper.

[0012] In a preferred embodiment of the special tool for installing the timing system of an automobile engine described in this utility model, the two ends of the two springs are respectively fixedly connected to the movable port and the movable block.

[0013] As a preferred embodiment of the special tool for installing the timing system of an automobile engine described in this utility model, the two movable blocks are rotatably connected to the opposite sides of each other with screws, the other ends of the two screws are fixedly connected to knobs, the arms of the two screws are threadedly connected to push plates, the sides of the two push plates that are close to each other are fixedly connected to limit rods, and multiple limit rods are movably connected to the corresponding movable blocks and respectively abut against the vertical handle.

[0014] As a preferred embodiment of the special tool for installing the timing system of an automobile engine described in this utility model, the inner walls on both sides of the two movable ports are provided with grooves, and sliders are slidably connected in the grooves, and the sliders are fixedly connected to the corresponding movable blocks.

[0015] The beneficial effects of this utility model are:

[0016] 1. The spring extension force brings the movable blocks closer together, preventing camshaft misalignment when belt replacement is needed. This facilitates adjustment of camshafts with different spacing, improving applicability to engine timing system installation. The vertical handle allows for height adjustment of the double-sided clamp, which provides bidirectional fixation of the camshaft. This allows for corresponding operation according to the engine timing system installation requirements. The gear blocks effectively ensure accurate camshaft timing. Furthermore, the movement of the movable blocks causes the connecting rod to unfold the measuring paper, facilitating quick measurement of camshaft spacing or specifications for rapid belt replacement. This convenient and quick method also prevents damage to the camshaft dimensions from affecting its use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 A frontal overall structural diagram of a special tool for installing an automobile engine timing system according to this utility model;

[0019] Figure 2 for Figure 1 A magnified structural diagram of region A;

[0020] Figure 3 This is a bottom view of the overall structure of a special tool for installing the timing system of an automobile engine, as proposed in this utility model.

[0021] In the diagram: 100, main body unit; 101, working plate; 102, movable opening; 200, translation unit; 201, guide rod; 202, movable block; 203, spring; 204, horizontal handle; 205, fixing component; 205a, vertical handle; 205b, double-sided clamping plate; 205c, toothed block; 206, measuring component; 206a, hollow cylinder; 206b, connecting rod; 207, screw; 208, push plate; 209, limit rod; 210, slide groove; 211, slider. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Reference Figure 1-3 This utility model provides a special tool for installing the timing system of an automobile engine, including:

[0027] The main unit 100 includes a work plate 101, on which two movable ports 102 are provided, which can meet the working and use requirements of the equipment through the work plate 101 and the movable ports 102.

[0028] The translation unit 200 includes two guide rods 201. Both ends of the two guide rods 201 are fixedly connected to the inner wall of the corresponding movable opening 102. The arms of the two guide rods 201 are slidably connected to movable blocks 202. Springs 203 are sleeved on the side walls of the two guide rods 201 that are far apart from each other. Horizontal handles 204 are fixedly connected to the side walls of the two movable blocks 202 that are far apart from each other. The two horizontal handles 204 move through the working plate 101. A fixing component 205 is provided on both movable blocks 202. A measuring component 206 is provided on the working plate 101. The movable blocks 202 can be brought closer together by the extension and retraction force of the springs 203, thereby preventing the camshaft that needs to be replaced from shifting. This facilitates the adjustment operation of camshafts with different spacing and improves the applicability of engine timing system installation.

[0029] The fixing component 205 includes two vertical handles 205a, both of which are slidably connected to corresponding movable blocks 202. The bottom ends of the two vertical handles 205a are fixedly connected to double-sided clamping plates 205b, and toothed blocks 205c are fixedly connected to the two double-sided clamping plates 205b. The two double-sided clamping plates 205b are arranged in an X-shape, and their height can be adjusted by moving the vertical handles 205 up and down. The double-sided clamping plates 205b also facilitate bidirectional fixing of the camshaft, allowing for corresponding operation according to the requirements of the engine timing system installation. At the same time, the toothed blocks 205c effectively ensure the accurate timing of the camshaft.

[0030] Furthermore, the measuring component 206 includes a hollow cylinder 206a, which is fixedly connected to the working plate 101. The hollow cylinder 206a contains measuring paper that can be stretched on both sides. Connecting rods 206b are fixedly connected to two movable blocks 202. The ends of the two connecting rods 206b that are close to each other are fixedly connected to the corresponding measuring paper. By moving the movable blocks 202, the connecting rods 206b can drive the measuring paper to unfold, which facilitates the rapid measurement of the camshaft spacing or specifications, thereby enabling quick replacement of the corresponding belt. This is convenient and fast, and at the same time, it prevents damage to the camshaft dimensions from affecting its use.

[0031] Furthermore, the two ends of the two springs 203 are fixedly connected to the movable port 102 and the movable block 202 respectively, which can be fixed by the two ends of the springs 203 to ensure that the springs 203 bend during the stretching process.

[0032] Furthermore, each of the two movable blocks 202 has a screw 207 rotatably connected to its opposite side. The other end of each screw 207 is fixedly connected to a knob. The arms of each screw 207 are threadedly connected to a push plate 208. Limiting rods 209 are fixedly connected to both sides of the push plates 208 that are close to each other. Multiple limiting rods 209 are movably connected to the corresponding movable blocks 202 and respectively engage with the vertical handle 205a. The screw 207 can be rotated by operating the knob, causing the push plate 208 to drive the limiting rods 209 to engage and restrict the vertical handle 205a, thereby positioning the vertical handle 205a and preventing it from shaking during use.

[0033] Furthermore, the inner walls on both sides of the two movable openings 102 are provided with sliding grooves 210, and multiple sliding sliders 211 are slidably connected in the multiple sliding grooves 210. The multiple sliding sliders 211 are fixedly connected to the corresponding movable blocks 202. Through the cooperation between the sliding grooves 210 and the sliding sliders 211, the translation of the movable blocks 202 can be guided, ensuring that the movement of the movable blocks 202 is smooth.

[0034] During use, the extension and retraction of spring 203 brings the movable blocks 202 closer together, preventing the camshaft that needs belt replacement from shifting. This facilitates adjustment of camshafts with different spacings, improving the applicability to engine timing system installation. The vertical handle 205 can be moved up and down to adjust the height of the double-sided clamp 205b, which provides bidirectional fixation for the camshaft. This allows for corresponding operation according to the needs of engine timing system installation. Meanwhile, the gear block 205c effectively ensures accurate camshaft timing. The movement of movable block 202 causes the connecting rod 206b to unfold the measuring paper, facilitating quick measurement of camshaft spacing or specifications for rapid belt replacement. This is convenient and quick, while preventing damage to the camshaft dimensions from affecting its use.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A special tool for installing an automotive engine timing system, characterized in that: include: The main unit (100) includes a work plate (101) with two movable openings (102) on the work plate (101); The translation unit (200) includes two guide rods (201). Both ends of the two guide rods (201) are fixedly connected to the inner wall of the corresponding movable opening (102). The arms of the two guide rods (201) are slidably connected to movable blocks (202). Springs (203) are sleeved on the side walls of the two guide rods (201) that are far apart from each other. Horizontal handles (204) are fixedly connected to the side walls of the two movable blocks (202) that are far apart from each other. The two horizontal handles (204) move through the working plate (101). Fixing components (205) are provided on the two movable blocks (202). Measuring components (206) are provided on the working plate (101).

2. The special tool for installing an automotive engine timing system according to claim 1, characterized in that: The fixing component (205) includes two vertical handles (205a), both of which are slidably connected to the corresponding movable blocks (202). The bottom ends of the two vertical handles (205a) are fixedly connected to double-sided clamps (205b), and toothed blocks (205c) are fixedly connected to the two double-sided clamps (205b). The two double-sided clamps (205b) are arranged in an X-structure.

3. The special tool for installing an automotive engine timing system according to claim 2, characterized in that: The measuring component (206) includes a hollow cylinder (206a), which is fixedly connected to the working plate (101). The hollow cylinder (206a) contains measuring paper that can be stretched on both sides. Each of the two movable blocks (202) is fixedly connected to a connecting rod (206b), and the ends of the two connecting rods (206b) that are close to each other are fixedly connected to the corresponding measuring paper.

4. A special tool for installing an automotive engine timing system according to claim 3, characterized in that: The two ends of the two springs (203) are fixedly connected to the movable port (102) and the movable block (202) respectively.

5. A special tool for installing an automotive engine timing system according to claim 4, characterized in that: Both movable blocks (202) are rotatably connected to screws (207) on their opposite sides. Both screws (207) are fixedly connected to knobs at their other ends. Both screws (207) are threadedly connected to push plates (208). Both push plates (208) are fixedly connected to limit rods (209) on their opposite sides. Multiple limit rods (209) are movably connected to the corresponding movable blocks (202) and respectively fit against the vertical handle (205a).

6. A special tool for installing an automotive engine timing system according to claim 5, characterized in that: The inner walls on both sides of the two movable ports (102) are provided with sliding grooves (210), and multiple sliding grooves (210) are slidably connected with sliders (211), and multiple sliders (211) are fixedly connected with corresponding movable blocks (202).