Tension adjusting slider for diesel engine air conditioner compressor with novel structure

Abstract

The utility model discloses a novel structure's diesel engine air conditioner compressor tensioning adjustment sliding block, including compressor body, the adjustment support of setting at the top of compressor body and the installation support of fixed mounting at the bottom end of compressor body, the adjustment support sets up as the bending plate spare, the adjustment screw is rotatably installed on the adjustment support, the adjustment block is threadedly installed on the adjustment screw, the adjustment block and compressor body are fixedly connected through the locking bolt. The utility model discloses setting adjustment support, adjustment block and adjustment screw, realize compressor body installation process and transmission belt tensioning work synchronous, compared with the installation and adjustment of traditional tensioning wheel, has saved the cost of installation tensioning wheel, through setting buffer assembly, buffer assembly is integral structure's polyurethane gasket, can effectively buffer and absorb part vibration energy, reduce the loosening risk of locking bolt because of repeated vibration, reduce the abrasion of locking bolt and sliding slot support.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioning compressor tensioning modules, and in particular to a novel structure of a diesel engine air conditioning compressor tensioning adjustment slider. Background Technology

[0002] In mechanical power transmission systems, diesel engines and air conditioning compressors often work in tandem via a combination of drive pulleys and drive belts. The diesel engine, as the core power source, transmits rotational kinetic energy from its output shaft to the drive belt via a specially designed drive pulley. The drive belt, acting as a flexible connector, transmits this kinetic energy to the input pulley of the air conditioning compressor with minimal or no loss. This arrangement not only achieves efficient power distribution between different components but also allows them to operate synchronously in relatively independent states, ensuring that the air conditioning system can stably provide cooling or heating functions while the vehicle is in motion.

[0003] To ensure a tight fit between the drive belt and the pulley, and to prevent power loss or slippage due to loosening, traditional designs often use a tensioning pulley as the tensioning mechanism. This pulley applies preload to the drive belt through its adjustable position or a spring-loaded mechanism. However, with continuous technological advancements, air conditioning compressor belt tensioning pulleys are gradually being replaced by tensioning brackets. Through optimized structural design and material selection, tensioning brackets not only achieve tensioning effects comparable to tensioning pulleys but also significantly reduce manufacturing and maintenance costs. Simultaneously, they improve the overall reliability and durability of the system, providing a more economical and efficient solution for the long-term stable operation of power transmission systems.

[0004] Currently, small rotary vane air conditioning compressors on the market are limited by the compact space of their upper mounting area, making it difficult to effectively install traditional tension adjustment sliders in this location. This results in manual adjustment being the only option. However, manual adjustment is not only cumbersome but also makes it difficult to precisely control the tension force, failing to meet the requirements for stable system operation. Therefore, a highly adaptable tension adjustment slider is needed to achieve fast and precise installation and adjustment, thereby significantly improving installation efficiency and ensuring stable and reliable system performance. Secondly, in existing technologies, the air conditioning compressor vibrates during operation, which reduces the stability between the tension adjustment slider and the slide rail. Vibration causes uneven force distribution on the contact surface between the slider and the slide rail, accelerating wear. Over time, the fit between the slider and the slide rail loosens, further reducing the tensioning effect. Utility Model Content

[0005] The purpose of this invention is to provide a novel structure for a diesel engine air conditioning compressor tension adjustment slider to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a novel diesel engine air conditioning compressor tension adjustment slider, comprising a compressor body, an adjustment bracket disposed above the compressor body, and a mounting bracket fixedly installed at the bottom of the compressor body. The adjustment bracket and the mounting bracket are respectively provided with a first mounting hole and a second mounting hole. The adjustment bracket and the mounting bracket are fixedly installed to the engine cylinder head by a first bolt disposed in the first mounting hole and a second bolt disposed in the second mounting hole, respectively. The drive wheel at the crankshaft end of the engine cylinder head is connected to the compressor drive wheel via a transmission belt. The adjustment bracket is configured as a bent plate, and an adjustment screw is rotatably mounted on the adjustment bracket. An adjustment block is threaded onto the adjustment screw. The adjustment block and the compressor body are fixedly connected by a locking bolt. The locking bolt passes through a groove on the adjustment bracket and is slidably connected to the groove. A buffer assembly is provided between the locking bolt and the groove.

[0007] As a further description of the above technical solution: the adjusting block is provided with a threaded hole, and the adjusting screw is threadedly connected to the adjusting block through the threaded hole.

[0008] As a further description of the above technical solution: the adjusting block is provided with a first locking hole, the top of the compressor body is fixedly installed with a lifting lug, and the lifting lug is provided with two second locking holes respectively. The locking bolt is threadedly connected to the first locking hole and the second locking hole respectively.

[0009] As a further description of the above technical solution: the upper and lower sides of the slide groove are provided with embedding grooves, and an annular gasket is slidably installed inside the slide groove. The annular gasket is embedded in the upper and lower embedding grooves. Filling gaskets are fixedly installed on both sides of the annular gasket. The filling gaskets are used to fill the two sides of the slide groove where there are no embedding grooves and fit tightly against the upper and lower sides of the slide groove.

[0010] As a further description of the above technical solution: the first locking hole and the second locking hole are respectively provided with a first annular groove and a second annular groove at the ends near the sliding groove. A first gasket and a second gasket are respectively embedded in the first annular groove and the second annular groove. The first gasket and the second gasket are respectively fixedly connected to the filling gasket they contact.

[0011] As a further description of the above technical solution: the first gasket, the second gasket, the two filler gaskets and the annular gasket are all provided with through holes to facilitate the locking bolt to be sleeved with each gasket. The first gasket, the second gasket, the two filler gaskets and the annular gasket are made of polyurethane material and are an integral structure.

[0012] This utility model provides a novel structure for a diesel engine air conditioning compressor tension adjustment slider. It has the following beneficial effects:

[0013] 1. By setting up an adjustment bracket, adjustment block and adjustment screw, the compressor body installation process and the transmission belt tensioning work can be carried out simultaneously. Compared with the traditional installation and adjustment of the tensioning wheel, the cost of installing the tensioning wheel is saved.

[0014] 2. By setting up a buffer component, which is an integrated polyurethane gasket, it can effectively buffer and absorb some of the vibration energy, reduce the risk of loosening of the locking bolts due to repeated vibration, and reduce the wear of the locking bolts and the slide bracket.

[0015] 3. The integrated gasket, through its annular structure, forms a fitting structure with the annular groove of the compressor lifting lug and adjusting block, achieving axial limiting in the axial direction and reducing the axial movement of the locking bolt.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0017] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention installed on the engine cylinder head;

[0019] Figure 2 This utility model Figure 1 A three-dimensional structural diagram from another perspective;

[0020] Figure 3 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 4 This utility model Figure 3 A three-dimensional structural diagram from another perspective;

[0022] Figure 5 This is a three-dimensional exploded structural diagram of the present invention;

[0023] Figure 6 This utility model Figure 5 A three-dimensional exploded structure diagram from another perspective;

[0024] Figure 7 This utility model Figure 6 A magnified structural diagram at point A;

[0025] Figure 8 A three-dimensional structural diagram of the buffer assembly provided between the locking bolt and the slide groove in this utility model;

[0026] Figure 9 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 10 This utility model Figure 9 A magnified structural diagram at point B.

[0028] Legend:

[0029] 1. Adjusting bracket; 101. First mounting hole; 2. First bolt; 3. Mounting bracket; 301. Second mounting hole; 4. Second bolt; 5. Slide groove; 501. Embedded groove; 6. Adjusting screw; 7. Adjusting block; 701. Threaded hole; 702. First locking hole; 8. Compressor body; 9. Compressor drive wheel; 10. Lifting lug; 11. Second locking hole; 12. Locking bolt; 13. First annular groove; 14. First gasket; 15. Second annular groove; 16. Second gasket; 17. Annular gasket; 18. Filler gasket; 19. Engine cylinder head; 20. Crankshaft; 21. Drive pulley; 22. Drive belt. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Reference Figure 1-10 A novel diesel engine air conditioning compressor tension adjustment slider includes a compressor body 8, an adjustment bracket 1 disposed above the compressor body 8, and a mounting bracket 3 fixedly installed at the bottom of the compressor body 8. The adjustment bracket 1 and the mounting bracket 3 are respectively provided with a first mounting hole 101 and a second mounting hole 301. The adjustment bracket 1 and the mounting bracket 3 are fixedly installed to the engine cylinder head 19 by a first bolt 2 disposed on the first mounting hole 101 and a second bolt 4 disposed on the second mounting hole 301, respectively. The drive wheel 21 at the end of the crankshaft 20 on the engine cylinder head 19 is connected to the compressor drive wheel 9 through a transmission belt 22. The compressor body 8, crankshaft 20, drive wheel 21 and compressor drive wheel 9 are all existing technologies and are not described in detail. The compressor body 8 is installed on the engine cylinder head 19 by the mounting bracket 3, and the adjustment bracket 1 is also installed on the engine cylinder head.

[0032] The adjusting bracket 1 is configured as a bent plate, and an adjusting screw 6 is rotatably mounted on the adjusting bracket 1. An adjusting block 7 is threaded onto the adjusting screw 6. The adjusting block 7 and the compressor body 8 are fixedly connected by a locking bolt 12. The locking bolt 12 passes through a sliding groove 5 opened on the adjusting bracket 1 and is slidably connected to the sliding groove 5. A buffer assembly is provided between the locking bolt 12 and the sliding groove 5. During the installation of the compressor body 8, the second bolt 4 on the mounting bracket 3 is first hooked onto the engine cylinder head 19 without being tightened. By rotating the adjusting screw 6 on the adjusting bracket 1, the adjusting block 7 can slide. The adjusting block 7 drives the compressor body 8 to move, causing the compressor drive wheel 9 to tension the belt. After the tension adjustment is completed, the second bolt 4 is locked to the engine cylinder head 19, thereby realizing that the installation process of the compressor body 8 and the tensioning of the drive belt 22 are carried out simultaneously. Compared with the traditional installation and adjustment of the tensioning wheel, the above structure saves the cost of installing the tensioning wheel, and the tensioning of the drive belt 22 can be achieved only through the above-mentioned adjusting mechanism.

[0033] As a preferred technical solution in this embodiment, the adjusting block 7 is provided with a threaded hole 701, and the adjusting screw 6 is threadedly connected to the adjusting block 7 through the threaded hole 701; by rotating the adjusting screw 6, the adjusting block 7 can be slidable.

[0034] As a preferred technical solution of this embodiment, the adjusting block 7 is provided with a first locking hole 702, and the top of the compressor body 8 is fixedly installed with a lifting lug 10. The lifting lug 10 is provided with two second locking holes 11 respectively. The locking bolt 12 is threadedly connected to the first locking hole 702 and the second locking hole 11 respectively. The locking bolt 12 locks the adjusting block 7 and the compressor body 8 on both sides of the adjusting bracket 1 through the first locking hole 702 and the second locking hole 11 respectively.

[0035] As a preferred technical solution in this embodiment, the upper and lower sides of the slide groove 5 are provided with embedding grooves 501. An annular gasket 17 is slidably installed inside the slide groove 5. The annular gasket 17 is embedded in the upper and lower embedding grooves 501. Filling gaskets 18 are fixedly installed on both sides of the annular gasket 17. The filling gaskets 18 are used to fill the two sides of the slide groove 5 where there are no embedding grooves 501 and fit tightly against the upper and lower sides of the slide groove 5. The annular gasket 17 and the filling gasket 18 can increase the contact area at the connection between the locking bolt 12 and the slide groove 5. The filling gasket 18 and the annular gasket 17 are made of polyurethane shock-absorbing and wear-resistant material. Compared with the traditional rigid contact, the above-mentioned gasket structure can play a buffering role on the one hand and reduce the wear at the contact position on the other hand, increasing the service life of the adjustment mechanism.

[0036] As a preferred technical solution of this embodiment, the ends of the first locking hole 702 and the second locking hole 11 near the sliding groove 5 are respectively provided with a first annular groove 13 and a second annular groove 15. The first annular groove 13 and the second annular groove 15 are respectively embedded in the first gasket 14 and the second gasket 16. The first gasket 14 and the second gasket 16 are respectively fixedly connected to the filling gasket 18 in contact with them. While locking the lifting lugs 10 and the adjusting block 7 on both sides of the adjusting bracket 1, the locking bolt 12 also makes the lifting lugs 10 and the adjusting block 7 close to both sides of the adjusting bracket 1. The first gasket 14 and the second gasket 16 on both sides are embedded in the annular grooves opened on both sides of the lifting lugs 10 and the adjusting block 7, which can also play a buffering and shock-absorbing effect at the connection position.

[0037] As a preferred technical solution of this embodiment, the first gasket 14, the second gasket 16, the two filling gaskets 18 and the annular gasket 17 are all provided with through holes to facilitate the locking bolt 12 to be sleeved with each gasket. The first gasket 14, the second gasket 16, the two filling gaskets 18 and the annular gasket 17 are made of polyurethane and are an integral structure. During the process of assembling the adjusting block 7 and the lifting lug 10 on the compressor body 8 on both sides of the sliding groove 5 of the adjusting bracket 1 by using the locking bolt 12, the first annular groove 13 and the second annular groove 15 opened on the adjusting block 7 and the lifting lug 10 are respectively inserted into the positions of the first gasket 14 and the second gasket 16, and then locked by the locking bolt 12.

[0038] The polyurethane gasket with its integrated structure can effectively buffer and absorb some of the vibration energy due to its good elasticity and toughness, reduce the risk of loosening of the locking bolt 12 due to repeated vibration, and reduce the wear of the locking bolt 12 and the slide 5 bracket.

[0039] Furthermore, since the first gasket 14, the second gasket 16, and the two filling gaskets 18 are an integral structure, the integral gasket forms an interlocking structure with the compressor lifting lug 10 and the annular groove of the adjusting block 7 through its annular structure, which realizes axial limiting in the axial direction and reduces the axial movement of the locking bolt 12.

[0040] Finally, the high elasticity and resilience of polyurethane material can automatically compensate for gaps under vibration and impact, maintaining a constant axial preload.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel structure for a diesel engine air conditioning compressor tension adjustment slider, comprising a compressor body (8), an adjustment bracket (1) disposed above the compressor body (8), and a mounting bracket (3) fixedly installed at the bottom end of the compressor body (8), characterized in that, The adjusting bracket (1) is configured as a bent plate. An adjusting screw (6) is rotatably installed on the adjusting bracket (1). An adjusting block (7) is threaded on the adjusting screw (6). The adjusting block (7) and the compressor body (8) are fixedly connected by a locking bolt (12). The locking bolt (12) passes through the slide groove (5) opened on the adjusting bracket (1) and is slidably connected with the slide groove (5). A buffer assembly is provided between the locking bolt (12) and the slide groove (5).

2. The novel diesel engine air conditioning compressor tension adjusting slider according to claim 1, characterized in that, The adjusting block (7) has a threaded hole (701), and the adjusting screw (6) is threadedly connected to the adjusting block (7) through the threaded hole (701).

3. The novel diesel engine air conditioning compressor tension adjusting slider according to claim 1, characterized in that, The adjusting block (7) has a first locking hole (702), and the top of the compressor body (8) is fixedly installed with a lifting lug (10). The lifting lug (10) has two second locking holes (11) respectively. The locking bolt (12) is threadedly connected to the first locking hole (702) and the second locking hole (11) respectively.

4. The novel diesel engine air conditioning compressor tension adjusting slider according to claim 1, characterized in that, The upper and lower sides of the slide groove (5) are provided with embedding grooves (501). An annular gasket (17) is slidably installed inside the slide groove (5). The annular gasket (17) is embedded in the upper and lower embedding grooves (501). Filling gaskets (18) are fixedly installed on both sides of the annular gasket (17). The filling gaskets (18) are used to fill the two sides of the slide groove (5) where there are no embedding grooves (501) and fit tightly against the upper and lower sides of the slide groove (5).

5. The novel diesel engine air conditioning compressor tension adjusting slider according to claim 3, characterized in that, The first locking hole (702) and the second locking hole (11) are respectively provided with a first annular groove (13) and a second annular groove (15) at the end near the slide groove (5). A first gasket (14) and a second gasket (16) are respectively embedded in the first annular groove (13) and the second annular groove (15). The first gasket (14) and the second gasket (16) are respectively fixedly connected to the filling gasket (18) in contact with them.

6. The novel diesel engine air conditioning compressor tension adjusting slider according to claim 5, characterized in that, The first gasket (14), the second gasket (16), the two filler gaskets (18) and the annular gasket (17) are all provided with through holes to facilitate the locking bolt (12) to be sleeved with each gasket. The first gasket (14), the second gasket (16), the two filler gaskets (18) and the annular gasket (17) are made of polyurethane material and are an integral structure.

Images