Reinforcing sheet for automobile transmission chain belt

Abstract

The utility model relates to a reinforcing sheet for an automobile transmission chain belt, which solves the problems that the left end and the right end of the existing reinforcing sheet for the transmission chain belt are easy to be uneven in height in the installation process, the assembly difficulty is increased, and the assembly efficiency is obviously reduced. Comprising a flat main body, the main body is composed of two pin shaft connecting parts and a chain plate limiting part, and the chain plate limiting part is arranged between the two pin shaft connecting parts; each pin shaft connecting part comprises a pin shaft connecting hole, a friction plane and an arc-shaped convex surface; the chain plate limiting part comprises a limiting upper plane, a limiting lower plane and a symmetric line, and the two pin shaft connecting parts are symmetrically distributed left and right by taking the symmetric line as a reference; the limiting lower plane is higher than the friction plane, so that a height is formed between the limiting lower plane and the friction plane; according to the three-point limiting design, the mounting precision and efficiency are remarkably improved, the tensile strength is enhanced, the friction performance is optimized, the running resistance is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of automotive transmission chain technology, and in particular relates to a reinforcing sheet for automotive transmission chains. Background Technology

[0002] In automotive transmission belts, the reinforcing plate is a critical connecting component, and its installation accuracy and stability directly affect the overall performance and service life of the belt. Traditional reinforcing plates typically employ a two-point positioning design, securing them to the chain plate via a single slot. However, this design has significant drawbacks in practical applications; relying solely on two positioning points, the reinforcing plate is prone to unevenness at its left and right ends during installation. This necessitates repeated adjustments during belt assembly, increasing assembly difficulty and significantly reducing assembly efficiency. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a reinforcing plate for automotive transmission chains, which solves the problem that current reinforcing plates for transmission chains are prone to uneven heights at both ends during installation, increasing assembly difficulty and significantly reducing assembly efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes a flat main body, composed of two pin connecting parts and a chain plate limiting part, wherein the chain plate limiting part is disposed between the two pin connecting parts; each pin connecting part includes a pin connecting hole, a friction plane, and an arc-shaped convex surface, the pin connecting hole penetrating the thickness direction of the pin connecting part; the chain plate limiting part includes a limiting upper plane, a limiting lower plane, and a symmetry line, the two pin connecting parts being symmetrically distributed left and right with the symmetry line as a reference; the left and right ends of the limiting upper plane form grooves with the outer edges of the corresponding pin connecting parts, and the limiting lower plane is higher than the friction plane, creating a height difference between them. The two grooves correspond one-to-one with the limiting blocks of the chain plate, and the cooperation between the limiting lower plane and the limiting buckle of the chain plate forms three points of interaction, allowing the reinforcing plate to be installed more accurately and conveniently in one step, without the phenomenon of uneven height at both ends of the reinforcing plate.

[0005] Preferably, in order to improve the tensile strength of the reinforcing sheet, a transition arc surface is provided between the arc-shaped convex surface and the bottom of the slot, and a transition slope is provided between the limiting upper plane and the bottom of the slot.

[0006] Preferably, in order to improve the overall strength of the reinforcing sheet, the thickness of the main body is 4mm.

[0007] Preferably, in order to reduce the frictional resistance of the reinforcing plate and make the chain run more smoothly, the area of ​​the friction surface is 0.528㎡.

[0008] Preferably, in order to enable the reinforcing plate and the chain plate to rub against the outside at the same time, so that both of them can contact and rub against the support surface at the same time, thus satisfying the conductivity and protecting the chain from wear, the chain plate is also included. After the main body and the chain plate are connected and limited, the friction plane is set coplanar with the bottom surface of the chain plate.

[0009] Preferably, in order to ensure the strength of the chain plate while simplifying the assembly process, six reinforcing plates are equidistantly arranged along the length direction on the chain plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. Three-point limiting design significantly improves installation accuracy and efficiency:

[0012] With the three-point cooperation of two slots and two limit blocks, and the lower limit plane and the limit buckle, the stability is higher, and the reinforcing plate can be installed in one step, completely solving the problem of uneven left and right height caused by traditional two-point limit, improving assembly efficiency and eliminating the need for repeated adjustments.

[0013] 2. Increased tensile strength and extended service life:

[0014] The main body thickness is increased to 4mm (traditional 3mm), resulting in higher overall strength and increased friction area with the pin. Combined with the transition arc surface (enlarged R angle) and transition slope design, tensile strength is improved. Stress concentration is effectively dispersed, reducing the risk of chain breakage.

[0015] 3. Optimized friction performance, reduced operating resistance:

[0016] The friction surface area has been optimized to 0.528㎡ (compared to the traditional 0.72㎡), and combined with a 4mm thickness design, while ensuring support stability, frictional resistance is reduced, the chain runs more smoothly, energy consumption is reduced, and the service life of the chain is improved.

[0017] 4. Synchronous wear protection, achieving both conductivity and durability.

[0018] The friction plane and the bottom surface of the chain plate are set on the same plane to ensure that the two contact the support surface synchronously. This avoids excessive wear caused by the protrusion of the bottom of the existing steel plate, which not only meets the conductivity requirements, but also protects the chain from wear and extends the overall life of the chain.

[0019] 5. Simplified assembly process and improved production efficiency

[0020] Only 6 reinforcing plates need to be installed within a chain plate width of 300mm (compared to 8 for a traditional 3mm thick, 308mm wide chain plate), reducing the number of plates required and simplifying the assembly process. Combined with a three-point limiting design, the overall assembly efficiency is significantly improved. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a three-dimensional view of the overall structure of the reinforcing sheet in this utility model.

[0023] Figure 2 This is a front view of the overall structure of the reinforcing sheet in this utility model.

[0024] Figure 3 This is a front view of the overall structure of the existing steel sheet in this utility model.

[0025] Figure 4 This is a schematic diagram comparing the friction planes of the existing steel sheet and the reinforcing sheet in this utility model.

[0026] Figure 5 This is a comparative schematic diagram of the connection between existing steel sheets, reinforcing sheets and chain plates in this utility model.

[0027] Figure 6 yes Figure 5 Enlarged schematic diagram of part A in the diagram.

[0028] Figure 7 This is a schematic diagram of the three-point limiting structure of the chain plate and the reinforcing plate in this utility model.

[0029] Figure 8 yes Figure 7 Enlarged schematic diagram of part B in the diagram.

[0030] Figure 9 This is a schematic diagram of the six reinforcing plates equidistantly arranged in this utility model.

[0031] Figure 10 This is a schematic diagram of the structure of the transmission chain composed of multiple chain plates in this utility model.

[0032] In the figure: 1-Main body, 1a-Pin shaft connection part, 1a1-Pin shaft connection hole, 1a2-Friction plane, 1a3-Arc-shaped convex surface, 1b-Chain plate limiting plate, 1b1-Limiting upper plane, 1b2-Limiting lower plane, 1b3-Symmetry line, 2-Slot, 201-Transition arc surface, 202-Transition inclined surface, 3-Chain plate, 301-Limiting block, 302-Limiting buckle, 4-Existing steel sheet. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0034] Reference Figure 1-10 As shown, this utility model provides a reinforcing plate for automotive transmission chains, including a flat main body 1. The main body 1 is composed of two pin connecting parts 1a and a chain plate limiting part 1b, with the chain plate limiting part 1b disposed between the two pin connecting parts 1a; Figure 10 As shown, the conveyor belt is composed of multiple chain plates connected by pins. The main body of the reinforcing plate 1 and the pins are made of 430 stainless steel, and the chain plates are made of POM or PA6 material.

[0035] To enhance the overall strength of the reinforcing sheet, the thickness of the main body 1 is 4mm. In the prior art, the thickness of the reinforcing sheet is 3mm, which is insufficient in tensile strength. In this design, the thickness of the reinforcing sheet is increased to 4mm, thereby improving its strength.

[0036] Each pin connection part 1a includes a pin connection hole 1a1, a friction plane 1a2, and an arc-shaped convex surface 1a3;

[0037] The pin connection hole 1a1 extends through the thickness direction of the pin connection part and is used for the connection between multiple chain plates 3 through the engagement of the pin and the pin connection hole 1a1. As the thickness of the reinforcing plate increases, the friction area between the pin connection hole 1a1 and the pin increases, reducing wear, extending the service life of the reinforcing plate, and improving tensile strength.

[0038] Friction plane 1a2 is the lowest plane of the reinforcing plate, used for contact support, with a contact area of ​​0.528㎡. In existing technology, the bottom contact area of ​​a single reinforcing plate is 0.72㎡. Compared to the 0.528㎡ of this design, the overall contact area of ​​the existing steel plate 4 is 0.192㎡ (26.7%) larger, resulting in higher frictional resistance and less smooth operation. Figure 4 As shown and described above, the area of ​​the friction plane 1a2 in this design is reduced. Area = length * width. The width of the friction plane 1a2 is the thickness of the reinforcing plate. The reinforcing plate in this design is thicker, so the length c1 needs to be shorter. Conversely, in the prior art, the thickness of the reinforcing plate is small, so the length c2 needs to be longer. This design has low frictional resistance, runs more smoothly, and improves the service life of the chain.

[0039] The arc-shaped convex surface 1a3 is connected to the bottom of the slot 2 via a transition arc surface 201, optimizing stress distribution. The transition arc surface 201 corresponds to an arc radius (R-angle). In existing technologies, the arc radius is small, resulting in low overall strength. In this design, the arc radius corresponding to the transition arc surface 201 is enlarged, and combined with the increased thickness of the reinforcing sheet, the tensile strength is increased by approximately 30%. A transition slope 202 is provided between the limiting upper plane 1b1 and the bottom of the slot 2. The transition slope 202, the transition arc surface 201, and the bottom surface of the slot 2 form a wide opening angle, facilitating quick engagement with the limiting block 301 on the chain plate 3 (e.g., ...). Figure 7 , Figure 8 As shown in the image, this improves the smoothness of assembly.

[0040] The chain plate limiting part 1b includes a limiting upper plane 1b1, a limiting lower plane 1b2 and a symmetry line 1b3. The two pin shaft connecting parts 1a are symmetrically distributed on the left and right sides with the symmetry line 1b3 as the reference, so that the overall force and friction of the reinforcing plate are uniform.

[0041] The left and right ends of the upper limiting plane 1b1 and the outer edge of the corresponding pin connection part 1b form a groove 2. The lower limiting plane 1b2 is higher than the friction plane 1a2, creating a height difference between them. This ensures that after installation, the friction plane 1a2 is coplanar with the bottom surface of the chain plate 3 (e.g., ...). Figure 5 (As shown). In this design, the bottom of the chain plate 3 and the bottom of the reinforcing plate are on the same plane, so that both can simultaneously contact and rub against the supporting surface, which satisfies both conductivity and protects the chain from single-path wear; however, the bottom of the existing steel plate 4 is higher than the bottom of the chain plate (as shown). Figure 5 , Figure 6 As shown, this causes the existing steel sheet 4 to come into contact with the support surface and rub against it, resulting in severe wear on the friction surface 1a2, which will reduce the overall service life of the product.

[0042] Depend on Figure 7 , Figure 8 As can be seen, this design achieves a one-to-one correspondence between the two slots 2 and the limiting blocks 301 of the chain plate 3, and the cooperation between the limiting lower plane 1b2 and the limiting buckle 302, forming three points of interaction to more accurately and conveniently install the reinforcing plate in one step, avoiding the phenomenon of uneven height at both ends of the reinforcing plate, realizing "three-point limiting" and achieving higher stability; Figure 5 As shown, the existing steel sheet 4 is limited by a slot and a buckle, which easily leads to unevenness on the left and right sides during installation. This results in the need for readjustment during the assembly of the conveyor belt, leading to low assembly efficiency. Compared with the reinforcing sheet in the existing technology, this design greatly improves the overall assembly efficiency during installation.

[0043] Six reinforcing plates are equidistantly arranged along the length of the chain plate 3. In this design, the thickness of the reinforcing plates is 4mm and the width is 300mm, with 6 plates installed on one chain plate; the existing steel plates 4 are designed to be 3mm thick and 308mm wide, with 8 plates installed on one chain plate 3. Fewer plates are installed on the same chain plate, reducing the installation and assembly process and improving assembly efficiency.

[0044] The specific assembly process is as follows: First, confirm the specifications of the chain plate 3 (e.g., 300mm width), and prepare 6 reinforcing plates and matching pins (material 430 stainless steel); then, align the symmetry line 1b3 of the reinforcing plate with the center line of the chain plate 3, and use the cooperation of the slot 2 and the limiting block 301 to insert the reinforcing plate into the chain plate, so that the upper limiting plane 1b1 is in contact with the top surface of the chain plate, and the lower limiting plane 1b2 cooperates with the limiting buckle 302 to lock the position of the reinforcing plate; repeat this operation to connect all 6 reinforcing plates to the chain plate 3. Then, using the same steps, make multiple chain plates and reinforcing plate combinations, with staggered arrangements in the two chain plates, and insert the pin through the pin connection hole 1a1 to connect the reinforcing plate and the chain plate combination to form a complete chain belt.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reinforcing sheet for automobile transmission chain belt, comprising a flat main body (1) which is composed of two pin shaft connecting parts (1a) and a chain plate limiting part (1b) arranged between the two pin shaft connecting parts (1a); each pin shaft connecting part (1a) comprises a pin shaft connecting hole (1a1) penetrating through the thickness direction of the pin shaft connecting part, a friction flat (1a2) and an arc convex surface (1a3); the chain plate limiting part (1b) comprises a limiting upper flat (1b1), a limiting lower flat (1b2) and a symmetry line (1b3), and the two pin shaft connecting parts (1a) are symmetrically distributed with the symmetry line (1b3) as the reference; characterized in that, the left and right ends of the limiting upper flat (1b1) and the outer edges of the chain plate limiting part (1b) on the corresponding side form a clamping groove (2), and the limiting lower flat (1b2) is higher than the friction flat (1a2) to form a height difference therebetween. A transition arc surface (201) is arranged between the arc convex surface (1a3) and the bottom of the clamping groove (2), and a transition inclined surface (202) is arranged between the limiting upper flat (1b1) and the bottom of the clamping groove (2). The thickness of the main body (1) is 4 mm. The area of the friction flat (1a2) is 0.528 m2.

2. The reinforcing sheet for a power transmission belt for a vehicle according to claim 1, characterized by The chain plate (3) is further included, and after the main body (1) is connected and limited with the chain plate (3), the friction flat (1a2) is arranged coplanarly with the bottom surface of the chain plate (3).

3. The reinforcing sheet for a power transmission belt for a vehicle according to claim 1, characterized by Six reinforcing sheets are equidistantly arranged along the length direction on the chain plate (3).

4. The reinforcing sheet for a power transmission belt for a vehicle according to claim 3, characterized in that, ​ 5. The reinforcement sheet for a power transmission belt for a vehicle according to claim 1, characterized by ​ 6. A reinforcing sheet for a power transmission belt for a vehicle according to claim 5, characterized in that, ​

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