A sliding shoe extension structure for a continuously variable transmission

Abstract

The utility model relates to the field of continuously variable transmission, and discloses a continuously variable transmission sliding shoe lengthening structure, including a case cover, the case cover is detachably arranged on one side of a shell, an output shaft is connected between the case cover and the shell, an input shaft is connected between the case cover and the shell, a plunger is arranged inside the shell, a sliding shoe is arranged inside the shell, a ball head of the plunger is made in the sliding shoe, the sliding shoe is hinged with the ball head of the plunger by a closing method, a retaining ring is connected between the case cover and the input shaft, and a needle bearing is connected between the case cover and the input shaft. In the utility model, by lengthening the size of the sliding shoe, the center point of the ball head of the plunger is moved downward, which is conducive to increasing the pull-off force after the sliding shoe and the plunger are pressed together, so as to improve the stability of the transmission, and to avoid premature wear and failure events caused by deformation of fewer parts, thereby facilitating the increase of service life.

Description

Technical Field

[0001] The utility model relates to the technical field of a continuously variable transmission, in particular to a sliding shoe lengthening structure of a continuously variable transmission. Background Art

[0002] A continuously variable transmission is a transmission that can continuously and steplessly adjust the ratio of the output shaft speed to the input shaft speed. Compared with traditional manual or automatic transmissions, continuously variable transmissions have smoother acceleration characteristics and higher fuel economy, so they are widely used in automobiles and other mechanical transmission systems. The slipper is one of the important components in a continuously variable transmission. Its function is to cooperate with the plunger to achieve continuous speed regulation of the output shaft.

[0003] At present, when most continuously variable transmissions are in use, the pull-off force after the sliding shoe and the plunger are pressed together is relatively small, which has the following disadvantages: it causes deformation of a few parts inside the continuously variable transmission, leading to premature wear and failure events, and reducing the service life. Utility Model Content

[0004] The utility model aims to provide a sliding shoe lengthening structure of a continuously variable transmission to solve the problem that a few parts inside the continuously variable transmission are deformed, resulting in premature wear and failure, and reducing the service life.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a continuously variable transmission sliding shoe extension structure, including a box cover, the box cover is detachably arranged on one side of a shell, an output shaft is connected between the box cover and the shell, an input shaft is connected between the box cover and the shell, a plunger is arranged inside the shell, a sliding shoe is arranged inside the shell, the ball head of the plunger is made in the sliding shoe, the sliding shoe is hinged to the ball head of the plunger by a closing manner, a retaining spring is connected between the box cover and the input shaft, and a needle bearing is connected between the box cover and the input shaft.

[0006] Preferably, the outer wall of the plunger is provided with a plurality of annular grooves.

[0007] Preferably, a central hole is formed at one end of the plunger.

[0008] Preferably, one side of the sliding shoe begins to have a concentric circular groove.

[0009] Preferably, an oil seal is provided between the box cover and the input shaft.

[0010] Preferably, the sliding shoe is made of wear-resistant copper alloy.

[0011] Compared with the prior art, the continuously variable transmission sliding shoe lengthening structure using the above technical solution has the following beneficial effects:

[0012] 1. During use, by lengthening the size of the sliding shoe, the center point of the ball head of the plunger is moved downward, which is beneficial to increase the pull-off force after the sliding shoe and the plunger are pressed together, so as to improve the stability of the transmission, avoid premature wear and failure caused by deformation of fewer parts, and thus help to increase the service life;

[0013] 2. During use, the ring groove is used to store lubricating oil. When the plunger moves, the lubricating oil will be released to the contact surface between the plunger and the sliding shoe, which is conducive to reducing friction and wear, improving transmission efficiency, thereby increasing the fluidity and control accuracy of the hydraulic oil, and making the hydraulic system respond faster. The center hole allows the hydraulic oil to pass through the plunger, which can provide an oil path for the hydraulic system, ensuring that the hydraulic oil can reach and act on the sliding shoe, while helping to reduce the weight of the plunger and reduce the overall mass of the transmission system, thereby improving power transmission efficiency and response speed;

[0014] 3. During use, the concentric grooves are used to provide installation positions and guides, which helps to change the tension and position of the transmission belt, and then adjust the working diameters of the driving and driven wheels to achieve smooth switching of different transmission ratios. The oil seal helps prevent lubricating oil leakage and prevent impurities from entering the housing, which helps to maintain the cleanliness of the internal environment of the transmission and extend its service life. By making the sliding shoe out of wear-resistant copper alloy, it is helpful to improve the durability of the sliding shoe and reduce the wear caused by friction, thereby extending the service life of the sliding shoe and even the entire continuously variable transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment.

[0016] Figure 2 Schematic diagram of the positional relationship between the plunger and the sliding shoe of the embodiment.

[0017] Figure 3 For example Figure 1 Enlarged schematic diagram at point A in the middle.

[0018] In the figure: 1. box cover; 2. housing; 3. output shaft; 4. input shaft; 5. plunger; 6. sliding shoe; 7. retaining spring; 8. needle roller bearing; 9. ring groove; 10. center hole; 11. concentric groove; 12. oil seal. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1-Figure 3As shown, a continuously variable transmission sliding shoe extension structure includes a case cover 1, which is detachably arranged on one side of a shell body 2, an output shaft 3 is connected between the case cover 1 and the shell body 2, an input shaft 4 is connected between the case cover 1 and the shell body 2, a plunger 5 is arranged inside the shell body 2, a sliding shoe 6 is arranged inside the shell body 2, a ball head of the plunger 5 is made in the sliding shoe 6, the sliding shoe 6 is hinged to the ball head of the plunger 5 by a closing manner, a retaining ring 7 is connected between the case cover 1 and the input shaft 4, and a needle bearing 8 is connected between the case cover 1 and the input shaft 4.

[0021] During use, a reliable connection method is provided by the retaining spring 7, which is conducive to ensuring a tight connection between the box cover 1 and the input shaft 4, and preventing oil leakage or other faults caused by looseness; the needle bearing 8 is conducive to reducing the friction between the box cover 1 and the input shaft 4, ensuring the stable rotation of the input shaft 4, and helping to reduce energy consumption and improve transmission efficiency; by lengthening the size of the sliding shoe 6, the center point of the ball head of the plunger 5 is moved downward, which is conducive to increasing the pull-off force after the sliding shoe 6 and the plunger 5 are pressed together, so as to improve the stability of the transmission, and help avoid premature wear and failure events caused by deformation of fewer parts, thereby helping to increase the service life.

[0022] like Figure 1 and Figure 2 As shown, the outer wall of the plunger 5 is provided with a plurality of annular grooves 9.

[0023] During use, the annular groove 9 is used to store lubricating oil. When the plunger 5 moves, the lubricating oil will be released to the contact surface between the plunger 5 and the sliding shoe 6, which is helpful to reduce friction and wear and improve transmission efficiency, thereby increasing the fluidity and control accuracy of the hydraulic oil and making the hydraulic system respond faster.

[0024] like Figure 1 and Figure 2 As shown, a center hole 10 is opened at one end of the plunger 5, and a concentric circular groove 11 begins to be formed on one side of the sliding shoe 6.

[0025] In use, the central hole 10 allows the hydraulic oil to pass through the plunger 5, which can provide an oil path for the hydraulic system, ensuring that the hydraulic oil can reach and act on the sliding shoe 6, while helping to reduce the weight of the plunger 5 and the overall mass of the transmission system, thereby helping to improve the power transmission efficiency and response speed. The concentric grooves 11 are helpful in providing installation positions and guides, which helps to change the tension and position of the transmission belt, and then adjust the working diameters of the driving and driven wheels to achieve smooth switching of different transmission ratios.

[0026] like Figure 1-Figure 3 As shown, an oil seal 12 is provided between the case cover 1 and the input shaft 4, and the sliding shoe 6 is made of a wear-resistant copper alloy.

[0027] In use, the oil seal 12 helps prevent the leakage of lubricating oil and prevents impurities from entering the housing 2, which helps maintain the cleanliness of the internal environment of the transmission and prolong its service life. By making the sliding shoe 6 out of wear-resistant copper alloy, the durability of the sliding shoe 6 is improved, and the wear caused by friction is reduced, thereby prolonging the service life of the sliding shoe 6 and even the entire continuously variable transmission.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A continuously variable transmission sliding shoe extension structure, comprising a box cover (1), wherein the box cover (1) is detachably arranged on one side of a housing (2), and is characterized in that: An output shaft (3) is connected between the box cover (1) and the housing (2), an input shaft (4) is connected between the box cover (1) and the housing (2), a plunger (5) is arranged inside the housing (2), a sliding shoe (6) is arranged inside the housing (2), a ball head of the plunger (5) is made inside the sliding shoe (6), the sliding shoe (6) is hinged to the ball head of the plunger (5) by a closing method, a retaining spring (7) is connected between the box cover (1) and the input shaft (4), and a needle bearing (8) is connected between the box cover (1) and the input shaft (4).

2. The continuously variable transmission sliding shoe extension structure according to claim 1, characterized in that: The outer wall of the plunger (5) is provided with a plurality of annular grooves (9).

3. The sliding shoe extension structure of a continuously variable transmission according to claim 2, characterized in that: One end of the plunger (5) is provided with a central hole (10).

4. The sliding shoe extension structure of a continuously variable transmission according to claim 3, characterized in that: A concentric circular groove (11) is formed at one side of the sliding shoe (6).

5. The sliding shoe extension structure of a continuously variable transmission according to claim 1, characterized in that: An oil seal (12) is provided between the box cover (1) and the input shaft (4).

6. The sliding shoe extension structure of a continuously variable transmission according to claim 5, characterized in that: The sliding shoe (6) is made of wear-resistant copper alloy.

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