Decoupling belt pulley resistant to extreme temperature and humidity

Abstract

The utility model belongs to the technical field of decoupling belt pulleys, and discloses an extreme temperature and humidity resistant decoupling belt pulley which comprises a decoupling belt pulley body, an end structure is arranged on the outer side of the decoupling belt pulley body, a clamping structure is arranged on the outer side of the decoupling belt pulley body, and the inner side of the clamping structure is connected with the outer side of the end structure. Wherein the decoupling belt pulley body comprises a belt pulley, a mandrel is arranged on the inner wall of the belt pulley, and a working cavity is formed between the belt pulley and the mandrel. According to the decoupling belt pulley, the end cover and the check block are arranged, the movable block is driven to move by rotating the circular ring, then the check block is driven by the movable block to move out of the clamping block, clamping of the end cover is relieved, the end cover is moved out of the inner cavity of the decoupling belt pulley body through the groove, and dismounting of the end structure is relieved; and therefore, an operator can conveniently clean the lubricant overflowing from the inside, so that the lubricant can be conveniently cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of decoupling pulleys, in particular to a decoupling pulley resistant to extreme temperature and humidity. Background Art

[0002] A decoupling pulley is a specially designed pulley used to achieve dynamic decoupling in the power transmission system. It can loosen the connection between the pulley and the drive shaft, allowing the pulley to rotate freely relative to the drive shaft, reducing vibration caused by engine speed fluctuations or front-end accessory speed fluctuations, and improving the smoothness and reliability of the transmission system.

[0003] The decoupling pulley in the prior art is generally provided with a lubricant inside when in use. The decoupling pulley lubricates the pulley and the core shaft through the lubricant when in use. However, after long-term use, the lubricant inside it often leaks from the chamber of the pulley decoupler. When cleaning the lubricant flowing into the chamber, it is necessary to remove the outer end cover. Since the end cover is generally deformed and stuck on the pulley, it is cumbersome and time-consuming to remove it, which is not conducive to cleaning the lubricant by personnel. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a decoupling pulley that is resistant to extreme temperature and humidity.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a decoupling pulley resistant to extreme temperature and humidity, comprising a decoupling pulley body, an end structure being provided on the outer side of the decoupling pulley body, a clamping structure being provided on the outer side of the decoupling pulley body, the inner side of the clamping structure being connected to the outer side of the end structure;

[0006] Wherein, the decoupling pulley body comprises a pulley, a core shaft is provided on the inner wall of the pulley, and a working cavity is formed between the pulley and the core shaft;

[0007] The end structure includes an end cover, the outer side of the end cover is provided with a clamping block, and the outer side of the clamping block extends into the inner cavity of the pulley;

[0008] The clamping structure includes a movable block, the outer surface of the movable block is movably connected to the inner wall of the pulley, and a stopper is provided on the inner side of the movable block, and the stopper extends to the inner cavity of the clamping block.

[0009] Preferably, a torque spring is provided inside the working chamber, and a friction spring is provided outside the torque spring.

[0010] Preferably, a ball bearing is provided on the outer side of the pulley, and a groove is provided on the outer side of the end cover.

[0011] Preferably, a sealing gasket is provided on the inner side of the end cover, and the inner side of the sealing gasket is movably connected to the outer side of the pulley.

[0012] Preferably, a return spring is connected to the outer side of the movable block, and the other end of the return spring is connected to the inner wall of the pulley.

[0013] Preferably, a circular ring is provided on the outer side of the movable block, and the inner side of the circular ring is movably connected to the outer surface of the pulley.

[0014] Preferably, the decoupling pulley body is composited with a resin matrix.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model provides an end cover and a stop block, and drives the movable block to move by rotating the ring, and then drives the stop block to move out from the inside of the clamping block through the movable block, so that the clamping of the end cover is released, and the end cover is moved out of the inner cavity of the decoupling pulley body through the groove, so that the end structure is released from being dismantled, thereby facilitating the operator to clean the lubricant spilled inside and facilitating the cleaning thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a front cross-sectional structural diagram of the present utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0020] Figure 4 This is a schematic diagram of the outer side cross-sectional structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the outer side cross-sectional structure of the utility model

[0022] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0023] In the figure: 1. Decoupling pulley body; 101. Pulley; 102. Core shaft; 103. Torque spring; 104. Friction spring; 105. Ball bearing; 2. End structure; 201. End cover; 202. Sealing gasket; 203. Snap-fit ​​block; 3. Snap-fit ​​structure; 301. Movable block; 302. Stop block; 303. Return spring; 304. Ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figures 1 to 6 FIG. 1 is a first embodiment of the present invention, which provides a decoupling pulley resistant to extreme temperature and humidity, comprising a decoupling pulley body 1, an end structure 2 being provided on the outer side of the decoupling pulley body 1, and a clamping structure 3 being provided on the outer side of the decoupling pulley body 1, wherein the inner side of the clamping structure 3 is connected to the outer side of the end structure 2;

[0027] The decoupling pulley body 1 includes a pulley 101, a core shaft 102 is provided on the inner wall of the pulley 101, and a working cavity is formed between the pulley 101 and the core shaft 102;

[0028] The end structure 2 includes an end cover 201, and a clamping block 203 is provided on the outer side of the end cover 201. The outer side of the clamping block 203 extends into the inner cavity of the pulley 101;

[0029] The clamping structure 3 includes a movable block 301, the outer surface of the movable block 301 is movably connected to the inner wall of the pulley 101, and a stopper 302 is provided on the inner side of the movable block 301, and the stopper 302 extends to the inner cavity of the clamping block 203;

[0030] By pulling the movable block 301, the stop block 302 is moved out from the inside of the clamping block 203, so that the clamping of the clamping block 203 is released, which makes it easier for the operator to move the end structure 2 as a whole out from the outside of the pulley 101, and makes it easier for the operator to clean the lubricant moved out from between the pulley 101 and the core shaft 102, so as to avoid affecting the use of the decoupling pulley body 1.

[0031] Example 2

[0032] like Figure 2 and Figure 3 As shown, this embodiment includes the features of embodiment 1, and the distinguishing technical feature is that a torque spring 103 is provided inside the working chamber, and a friction spring 104 is provided outside the torque spring 103;

[0033] The torque spring 103 absorbs and releases energy through its elastic properties to maintain a stable rotational speed of the pulley. The torque spring 103 can provide necessary buffering when the engine speed fluctuates, reducing the transmission of these fluctuations to accessories such as the generator or compressor, thereby protecting these components from damage.

[0034] At the same time, the friction spring 104 achieves decoupling through its friction force. When the torque spring 103 and the friction spring 104 are used together, it provides additional stability and control. The friction spring 104 can fine-tune the decoupling effect by increasing or decreasing the friction force, ensuring that the pulley can maintain the appropriate speed under different working conditions.

[0035] The lubricant in the working chamber of the decoupling pulley is mainly used to reduce friction, cool components, prevent corrosion and wear, and maintain the elastic properties of the torque spring 103 and the friction spring 104.

[0036] Among them, a ball bearing 105 is provided on the outer side of the pulley 101, and a groove is provided on the outer side of the end cover 201;

[0037] The ball bearing 105 supports the decoupling pulley body 1 and reduces friction. The ball bearing 105 can ensure that the pulley 101 maintains good rotation accuracy and stability during rotation, while bearing the load from belt tension and other external forces. The groove makes it easy for the operator to pull the disassembled end cover 201 out from the outside of the pulley 101, making it easier to clean up spilled lubricant.

[0038] A sealing gasket 202 is provided on the inner side of the end cover 201, and the inner side of the sealing gasket 202 is movably connected to the outer side of the pulley 101;

[0039] The design of the sealing gasket 202 facilitates sealing between the pulley 101 and the core shaft 102, thereby reducing the probability of lubricant overflow and reducing the number of times the operator needs to clean up the overflowed lubricant.

[0040] Example 3

[0041] like Figure 5 and Figure 6 As shown, this embodiment includes the features of embodiment 1, and the distinguishing technical feature is that a return spring 303 is connected to the outer side of the movable block 301, and the other end of the return spring 303 is connected to the inner wall of the pulley 101;

[0042] Through the design of the return spring 303 , pressure is applied to the return spring 303 , thereby driving the stopper 302 to be clamped inside the clamping block 203 , so that the stopper 302 fixes the end cover 201 .

[0043] The outer side of the movable block 301 is provided with a ring 304, and the inner side of the ring 304 is movably connected to the outer surface of the pulley 101;

[0044] By pulling the ring 304 , the multiple movable blocks 301 are driven to rotate, thereby releasing the clamping of the four sides of the end cover 201 , making it easier for an operator to release the clamping of the end cover 201 .

[0045] Among them, the decoupling pulley body 1 is made of a resin matrix composite;

[0046] The resin can maintain stability and performance under extreme temperature conditions and can be customized according to specific application scenarios to adapt to extreme temperature and humidity conditions.

[0047] The working principle and use process of this utility model:

[0048] First, when the operator is cleaning the spilled lubricant, the ring 304 is rotated to make the ring 304 drive the movable block 301 and the stop block 302 to rotate, thereby driving the stop block 302 to be removed from the inner cavity of the clamping block 203, so that it releases the clamping of the clamping block 203, and the end cover 201 is pulled out from the outside of the pulley 101 as a whole through the groove. By also removing the clamping block 203 from the inside of the pulley 101, it is convenient to clean the leaked lubricant, reducing the workload of the personnel and bringing convenience to the operator.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A decoupling pulley resistant to extreme temperature and humidity, comprising a decoupling pulley body (1), characterized in that: The outer side of the decoupling pulley body (1) is provided with an end structure (2), the outer side of the decoupling pulley body (1) is provided with a clamping structure (3), and the inner side of the clamping structure (3) is connected to the outer side of the end structure (2); The decoupling pulley body (1) comprises a pulley (101), a core shaft (102) is provided on the inner wall of the pulley (101), and a working chamber is formed between the pulley (101) and the core shaft (102); The end structure (2) comprises an end cover (201), a clamping block (203) is provided on the outer side of the end cover (201), and the outer side of the clamping block (203) extends into the inner cavity of the pulley (101); The clamping structure (3) comprises a movable block (301), the outer surface of the movable block (301) is movably connected to the inner wall of the pulley (101), a stopper (302) is provided on the inner side of the movable block (301), and the stopper (302) extends to the inner cavity of the clamping block (203).

2. The extreme temperature and humidity resistant decoupling pulley according to claim 1, characterized in that: A torque spring (103) is provided inside the working chamber, and a friction spring (104) is provided outside the torque spring (103).

3. The extreme temperature and humidity resistant decoupling pulley according to claim 1, characterized in that: A ball bearing (105) is provided on the outer side of the pulley (101), and a groove is provided on the outer side of the end cover (201).

4. The extreme temperature and humidity resistant decoupling pulley according to claim 1, characterized in that: A sealing gasket (202) is provided on the inner side of the end cover (201), and the inner side of the sealing gasket (202) is movably connected to the outer side of the pulley (101).

5. The extreme temperature and humidity resistant decoupling pulley according to claim 1, characterized in that: The outer side of the movable block (301) is connected to a return spring (303), and the other end of the return spring (303) is connected to the inner wall of the pulley (101).

6. The extreme temperature and humidity resistant decoupling pulley according to claim 1, characterized in that: A circular ring (304) is provided on the outer side of the movable block (301), and the inner side of the circular ring (304) is movably connected to the outer surface of the pulley (101).

7. The extreme temperature and humidity resistant decoupling pulley according to claim 1, characterized in that: The decoupling pulley body (1) is composited with a resin matrix.

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