Anti-falling belt pulley for automobile air conditioner compressor

Abstract

The utility model provides a kind of anti-falling pulley for automobile air conditioner compressor, including compressor, pulley, clutch structure, support structure, anti-falling belt and compressor mounting frame, wherein: compressor is fixedly installed in the inside of vehicle body by its outside compressor mounting frame;The pulley is rotatably installed at the front end of compressor, and clutch structure is installed at the front section of pulley, and the support structure is fixedly installed at the both sides of compressor;The anti-falling belt is arranged outside the support structure;The utility model is provided with support structure and anti-falling belt, and transmission belt cannot fall off, can provide support for transmission belt in large area and continuously.

Description

Technical Field

[0001] This utility model relates to the field of belt pulley technology, and in particular to an anti-detachment belt pulley for automotive air conditioning compressors. Background Technology

[0002] As a core power transmission component of the vehicle's air conditioning system, the belt drive system of the automotive air conditioning compressor directly affects the overall performance of the air conditioning system. In traditional designs, compressor pulleys typically employ simple V-groove or multi-ribbed belt structures, relying solely on the friction between the belt and the pulley to transmit power. However, with increasingly compact engine compartment spaces and the widespread adoption of engine start-stop technology, this traditional structure has revealed significant technical shortcomings in practical applications. Especially in congested urban traffic, frequent start-stop cycles cause the belt to bear alternating loads. Combined with engine vibration and belt creep, this easily leads to belt slippage or even detachment, thus necessitating a pulley designed to prevent detachment. However, existing air conditioning compressor pulleys still suffer from the problem of the drive belt easily slipping off and the inability to provide large-area and continuous support for the drive belt.

[0003] Therefore, it is essential to invent an anti-loosening pulley for automotive air conditioning compressors. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an anti-detachment pulley for automotive air conditioning compressors, solving the issue that existing air conditioning compressor pulleys still suffer from the problem of the drive belt easily detaching and failing to provide large-area and continuous support for the drive belt. An anti-detachment pulley for automotive air conditioning compressors includes a compressor, a pulley, a clutch structure, a support structure, an anti-detachment belt, and a compressor mounting bracket. The compressor is fixedly mounted inside the vehicle body via the compressor mounting bracket on its outer side. The pulley is rotatably mounted on the front end of the compressor, and the clutch structure is mounted on the front section of the pulley. The support structure is fixedly mounted on both sides of the compressor. The anti-detachment belt is disposed on the outer side of the support structure.

[0005] The support structure includes an outer support base, a proximal bracket, a proximal guide wheel, a distal bracket, and a distal support wheel. The outer support base is fixedly installed on both sides of the compressor surface, and the proximal bracket is fixedly installed on the upper and lower ends of a set of outer support bases. The proximal guide wheel is rotatably installed on the top of two sets of proximal brackets. The distal bracket is fixedly installed on the upper and lower ends of another set of outer support bases, and the distal support wheel is rotatably installed on the top of two sets of distal brackets.

[0006] The anti-slip belt includes a support base belt, reinforcing ribs, and a friction surface, with the reinforcing ribs disposed inside the support base belt and the friction surface disposed on the surface of the support base belt.

[0007] The support structure contains two pairs of distal supports and distal support wheels, which cannot rotate actively but can be passively rotated by the movement of the anti-slip belt. The distal supports, distal support wheels, and pulleys form a total of 5 support points, which allow the anti-slip belt to wrap around these points.

[0008] The anti-slip belt is a hollow "C"-shaped rubber belt, and the surface of the friction surface is provided with anti-slip particles. The friction surface is closely attached to the outer side of the pulley by the support structure. The anti-slip belt can generate an inward force and can continuously press the transmission belt against the pulley.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The support structure of this utility model is fixed to both sides of the compressor by outer support seats. A support system is formed by a near-end bracket, a near-end guide wheel, and a far-end bracket driving a far-end support wheel. This allows the anti-slip belt to tightly wrap around the pulley and significantly improves lateral displacement tolerance. The structure effectively suppresses vibration and compensates for pulley radial runout by distributing dynamic torque through the near-end guide wheel and bearing the preload through the far-end support wheel. Its precisely designed spatial constraint mechanism can strictly control the lateral sway amplitude of the anti-slip belt.

[0010] This utility model's anti-slip belt utilizes reinforcing ribs within its support base to provide necessary structural strength, while its surface friction surface maintains close contact with the pulley. The belt works in conjunction with the near-end guide pulley and far-end support pulley in the support structure to form a stable wrapping structure, effectively preventing belt slippage during transmission. The anti-slip belt's unique hollow "C"-shaped design continuously generates inward pressure, firmly pressing the transmission belt against the pulley surface, ensuring reliable transmission even under vehicle vibration or impact conditions. The anti-slip particles on its friction surface further enhance friction with the pulley, significantly improving the stability and durability of the entire transmission system. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a second-view schematic diagram of the present invention.

[0013] Figure 3 This is a schematic diagram of the support structure of this utility model.

[0014] Figure 4 This is a structural schematic diagram of the anti-slip belt of this utility model.

[0015] In the picture: Compressor 1, pulley 2, clutch structure 3, support structure 4, outer support seat 41, proximal bracket 42, proximal guide wheel 43, distal bracket 44, distal support wheel 45, anti-detachment belt 5, support base belt 51, reinforcing rib 52, friction surface 53, compressor mounting bracket 6. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] As attached Figure 1 To be continued Figure 4 As shown.

[0018] This utility model provides an anti-detachment pulley for an automotive air conditioning compressor, comprising a compressor 1, a pulley 2, a clutch structure 3, a support structure 4, an anti-detachment belt 5, and a compressor mounting bracket 6, wherein: the compressor 1 is fixedly installed inside the vehicle body via the compressor mounting bracket 6 on its outer side; the pulley 2 is rotatably installed at the front end of the compressor 1, and the clutch structure 3 is installed at the front section of the pulley 2; the support structure 4 is fixedly installed on both sides of the compressor 1; and the anti-detachment belt 5 is disposed on the outer side of the support structure 4.

[0019] The support structure 4 includes an outer support base 41, a proximal bracket 42, a proximal guide wheel 43, a distal bracket 44, and a distal support wheel 45. The outer support base 41 is fixedly installed on both sides of the surface of the compressor 1. The proximal bracket 42 is fixedly installed on the upper and lower ends of a set of outer support bases 41. The proximal guide wheel 43 is rotatably installed on the top of two sets of proximal brackets 42. The distal bracket 44 is fixedly installed on the upper and lower ends of another set of outer support bases 41, and the distal support wheel 45 is rotatably installed on the top of two sets of distal brackets 44.

[0020] The anti-slip belt 5 includes a support base belt 51, a reinforcing rib 52, and a friction surface 53. The reinforcing rib 52 is disposed inside the support base belt 51, and the friction surface 53 is disposed on the surface of the support base belt 51.

[0021] The distal bracket 44 and distal support wheel 45 inside the support structure 4 are both in pairs, and the distal bracket 44 and distal support wheel 45 cannot rotate actively. The distal bracket 44 and distal support wheel 45 can be passively rotated by the movement of the anti-slip belt 5. The distal bracket 44, distal support wheel 45 and pulley 2 form a total of 5 support points, which can make the anti-slip belt 5 wrap around the point.

[0022] The anti-slip belt 5 is a hollow "C"-shaped rubber belt, and the surface of the friction surface 53 is provided with anti-slip particles. The friction surface 53 is closely attached to the outer side of the pulley 2 by the support structure 4. The anti-slip belt 5 can generate an inward force and can continuously press the transmission belt against the pulley 2.

[0023] This automotive air conditioning compressor anti-detachment pulley system achieves intelligent power transmission through the cooperation of pulley 2 and clutch structure 3. When the air conditioner is started, clutch structure 3 engages, driving compressor 1 to operate; when the air conditioner is turned off, it automatically disengages. The core innovation of the system lies in the synergistic effect of support structure 4 and anti-detachment belt 5: support structure 4 forms five-point support through outer support seat 41, near-end guide wheel 43 and far-end support wheel 45, while anti-detachment belt 5 utilizes the strength of its support base belt 51 and the anti-slip properties of friction surface 53 to continuously apply centripetal pressure to press the transmission belt tightly against the surface of pulley 2.

[0024] The system achieves dual protection through the precise coordination of multiple components: on the one hand, the elastic hollow "C"-shaped structure and reinforcing ribs 52 of the anti-detachment belt 5 ensure sufficient restraint; on the other hand, the multi-point layout of the support structure 4 effectively suppresses lateral displacement and vibration. The flexible connection of the compressor mounting bracket 6, together with the above components, constitutes a complete anti-detachment system, which significantly improves system reliability while ensuring transmission efficiency and can adapt to the stable operation requirements under various complex working conditions.

[0025] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A pulley for an automotive air conditioning compressor that prevents slippage, characterized in that: The compressor (1) includes a compressor (1), a pulley (2), a clutch structure (3), a support structure (4), an anti-detachment belt (5), and a compressor mounting bracket (6), wherein: the compressor (1) is fixedly installed inside the vehicle body by the compressor mounting bracket (6) on its outer side; the pulley (2) is rotatably installed at the front end of the compressor (1), and the clutch structure (3) is installed at the front end of the pulley (2); the support structure (4) is fixedly installed on both sides of the compressor (1); the anti-detachment belt (5) is arranged on the outer side of the support structure (4).

2. The anti-loosening pulley for an automotive air conditioning compressor as described in claim 1, characterized in that: The support structure (4) includes an outer support seat (41), a proximal bracket (42), a proximal guide wheel (43), a distal bracket (44), and a distal support wheel (45). The outer support seat (41) is fixedly installed on both sides of the surface of the compressor (1), and the proximal bracket (42) is fixedly installed on the upper and lower ends of a set of outer support seats (41). The proximal guide wheel (43) is rotatably installed on the top of two sets of proximal brackets (42). The distal bracket (44) is fixedly installed on the upper and lower ends of another set of outer support seats (41), and the distal support wheel (45) is rotatably installed on the top of two sets of distal brackets (44).

3. The anti-loosening pulley for an automotive air conditioning compressor as described in claim 1, characterized in that: The anti-detachment belt (5) includes a support base belt (51), a reinforcing rib (52) and a friction surface (53), wherein the reinforcing rib (52) is disposed inside the support base belt (51) and the friction surface (53) is disposed on the surface of the support base belt (51).

4. The anti-loosening pulley for an automotive air conditioning compressor as described in claim 2, characterized in that: The support structure (4) contains two pairs of distal brackets (44) and distal support wheels (45), and the distal brackets (44) and distal support wheels (45) cannot rotate actively. The distal brackets (44) and distal support wheels (45) can be passively rotated by the action of the anti-slip belt (5). The distal brackets (44), distal support wheels (45) and pulleys (2) form a total of 5 support points, which can make the anti-slip belt (5) wrap around these points.

5. The anti-loosening pulley for an automotive air conditioning compressor as described in claim 3, characterized in that: The anti-slip belt (5) is a hollow "C" shaped rubber belt, and the surface of the friction surface (53) is provided with anti-slip particles. The friction surface (53) is closely attached to the outer side of the pulley (2) by the support of the support structure (4). The anti-slip belt (5) can generate an inward force and continuously press the transmission belt against the pulley (2).

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