Double air conditioner left and right side installation of double layer belt drive wheel system

Abstract

The utility model relates to a double -deck belt drive wheel system of double air conditioners left and right sides installation of engine front end, contain a layer of wheel system drive belt, generator support, a layer of cab air conditioning compressor, two layer goods compartment air conditioning compressor, two layer air conditioning compressor support, two layer self -tensioning belt, fan support, a layer of pulley, two layer pulley, a layer of cab air conditioning compressor is arranged in the left lower side of engine front end, two layer goods compartment air conditioning compressor is arranged in the right upper side of engine front end, two layer air conditioning compressor support is fixedly installed on cylinder cover and air intake manifold, two layer pulley and a layer of pulley are connected with fan support bolt, a layer of cab air conditioning compressor is by a layer of wheel system drive belt transmission power, two layer goods compartment air conditioning compressor is by two layer self -tensioning belt transmission power, the utility model has improved the arrangement problem of air conditioning compressor, has solved the after -sales service while avoided air conditioning compressor performance limit, has improved the stability.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine front-end wheel system technology, specifically to a double-layer belt drive wheel system installed on the left and right sides of the dual air conditioners at the front of an engine. Background Technology

[0002] For refrigerated truck applications, the diesel engine wheel system air conditioning units need to be arranged on both the left and right sides. This is to facilitate better layout of the air conditioning compressor piping throughout the vehicle. Conventional solutions place the cab air conditioning compressor and the cargo box air conditioning compressor on the same side.

[0003] The shortcomings of existing technology are: 1. In the existing technology, the same-side arrangement makes it difficult to arrange the piping of the two air conditioning compressors, and it is also necessary to avoid the piping of other accessories.

[0004] 2. Difficult to repair later. Repairing parts such as air conditioners requires completely removing the engine's wheel system.

[0005] 3. The same-side layout also limits the space for the air conditioning compressor, which in turn affects the performance parameters of the air conditioning system selected for the whole vehicle, resulting in insufficient cooling effect and thus a decline in market share. Utility Model Content

[0006] This utility model addresses the aforementioned problems by providing a double-layer belt drive wheel system installed on the left and right sides of the dual air conditioners at the front of the engine. Its purpose is to improve the arrangement of the air conditioner compressor, solve after-sales service issues, avoid performance limitations of the air conditioner compressor, and improve stability.

[0007] To solve the above problems, the technical solution provided by this utility model is as follows: A double-layer belt drive pulley system mounted on both sides of the dual air conditioners at the front of an engine includes a first-layer pulley drive belt, a generator bracket, a first-layer cab air conditioning compressor, a second-layer cargo box air conditioning compressor, a second-layer air conditioning compressor bracket, a second-layer self-tensioning belt, a fan bracket, a first-layer pulley, and a second-layer pulley, wherein: The first-floor cab air conditioning compressor is located on the lower left side of the front of the engine and is bolted to the generator bracket; the second-floor cargo box air conditioning compressor is located on the upper right side of the front of the engine and is bolted to the second-floor air conditioning compressor bracket; the second-floor air conditioning compressor bracket is fixedly installed on the cylinder head and intake manifold; the fifth bolt passes through the bolt holes on the second-floor pulley and the first-floor pulley in sequence, and bolts the second-floor pulley and the first-floor pulley to the fan bracket; the fan bracket is fixedly installed on the engine block; the first-floor cab air conditioning compressor is powered by the first-floor pulley system drive belt; the second-floor cargo box air conditioning compressor is powered by the second-floor self-tensioning belt.

[0008] Preferably, the first-layer gear train drive belt is an 8pk belt and is used to transmit the tension of crankshaft rotation to the gear train.

[0009] Preferably, the second-layer self-tensioning belt is a 4pk belt, which is used to drive the air conditioning compressor of the second-layer cargo compartment to rotate.

[0010] Preferably, the air conditioning compressor in the first-floor cab is fixed to the generator bracket by three first bolts passing through three partitions; the first bolts are of type M8X1.25; the partitions have an inner diameter of 10mm and a thickness of 4mm, and are used to prevent torque attenuation.

[0011] Preferably, the second-layer pulley and the first-layer pulley are fixedly mounted on the fan bracket by four fifth bolts; the fifth bolts are of type M10x1.5.

[0012] Preferably, the second-layer air conditioning compressor bracket is fixedly installed on the cylinder head and intake manifold by a second bolt, a third bolt, and three fourth bolts; the second bolt is used to connect the second-layer air conditioning compressor bracket to the bolt hole on the side of the cylinder head; the third bolt is used to connect the second-layer air conditioning compressor bracket to the intake manifold; and the fourth bolts connect the second-layer air conditioning compressor bracket to the bolt hole on the front of the cylinder head.

[0013] Preferably, the second bolt is M8x1.25; the third bolt is M6x1; and the fourth bolt is M8x1.25.

[0014] Compared with the prior art, this utility model has the following advantages: 1. The single-layer belt of this utility model can effectively transmit power from the crankshaft to various accessories, and is easy to install and prevents failure of related components.

[0015] 2. The double-layer belt of this utility model is driven by double-layer pulleys, which drives the rotation of the double-layer air conditioning compressor, making it convenient for later maintenance and service.

[0016] 3. This utility model moves the cargo compartment air conditioning compressor to the upper right side, which greatly improves the layout of the air conditioning compressor, solves the after-sales service problem, avoids performance limitations of the air conditioning compressor, and improves stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation structure of the double-layer refrigeration belt pulley system according to a specific embodiment of the present utility model; Figure 2 This is a disassembly diagram of the double-layer refrigeration belt pulley system according to a specific embodiment of the present utility model.

[0018] The components are as follows: 1. First-layer drive belt, 2. Generator bracket, 3. First-layer cab air conditioning compressor, 4. Second-layer cargo box air conditioning compressor, 5. Second-layer air conditioning compressor bracket, 6. Second-layer self-tensioning belt, 7. Fan bracket, 8. First bolt, 9. Spacer, 10. Second bolt, 11. Third bolt, 12. Fourth bolt, 13. First-layer pulley, 14. Second-layer pulley, 15. Fifth bolt. Detailed Implementation

[0019] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0020] This utility model application claims protection for a double-layer belt drive pulley system installed on the left and right sides of the dual air conditioners at the front of an engine, such as... Figure 1 , 2 As shown, it includes a first-layer drive belt 1, a generator bracket 2, a first-layer cab air conditioning compressor 3, a second-layer cargo box air conditioning compressor 4, a second-layer air conditioning compressor bracket 5, a second-layer self-tensioning belt 6, a fan bracket 7, a first-layer pulley 13, and a second-layer pulley 14, wherein: The first-floor cab air conditioning compressor 3 is located on the lower left side of the front of the engine and is bolted to the generator bracket 2; the second-floor cargo box air conditioning compressor 4 is located on the upper right side of the front of the engine and is bolted to the second-floor air conditioning compressor bracket 5; the second-floor air conditioning compressor bracket 5 is fixedly installed on the cylinder head and intake manifold; the fifth bolt 15 passes through the bolt holes on the second-floor pulley 14 and the first-floor pulley 13 in sequence, and bolts the second-floor pulley 14 and the first-floor pulley 13 to the fan bracket 7; the fan bracket 7 is fixedly installed on the engine block; the first-floor cab air conditioning compressor 3 is powered by the first-floor pulley system drive belt 1; the second-floor cargo box air conditioning compressor 4 is powered by the second-floor self-tensioning belt 6.

[0021] In this specific embodiment, the gear train drive belt 1 is an 8pk belt, which is used to transmit the tension of crankshaft rotation to the gear train.

[0022] In this specific embodiment, the second-layer self-tensioning belt 6 is a 4pk belt, which is used to drive the second-layer cargo compartment air conditioning compressor 4 to rotate.

[0023] In this specific embodiment, the air conditioning compressor 3 in the first-floor cab is fixed to the generator bracket 2 by three first bolts 8 passing through three partitions 9; the first bolts 8 are of type M8X1.25; the partitions 9 have an inner diameter of 10mm and a thickness of 4mm, and are used to prevent torque attenuation.

[0024] In this specific embodiment, the second-layer pulley 14 and the first-layer pulley 13 are fixedly mounted on the fan bracket 7 by four fifth bolts 15; the fifth bolts 15 are of type M10x1.5.

[0025] In this specific embodiment, the second-layer air conditioning compressor bracket 5 is fixedly installed on the cylinder head and intake manifold by a second bolt 10, a third bolt 11 and three fourth bolts 12; the second bolt 10 is used to connect the second-layer air conditioning compressor bracket 5 to the bolt hole on the side of the cylinder head; the third bolt 11 is used to connect the second-layer air conditioning compressor bracket 5 to the intake manifold; and the fourth bolts 12 connect the second-layer air conditioning compressor bracket 5 to the bolt hole on the front of the cylinder head.

[0026] In this specific embodiment, the second bolt 10 is of type M8x1.25; the third bolt 11 is of type M6x1; and the fourth bolt 12 is of type M8x1.25.

[0027] It should be noted that the first-layer drive belt 1 effectively transmits power from the crankshaft to various accessories, is easy to install, and prevents failure of related components. The second-layer self-tensioning belt 6 is driven by the second-layer pulley 14, which drives the rotation of the second-layer cargo compartment air conditioning compressor 4. This facilitates later servicing.

[0028] It should be noted that when this utility model is applied to a diesel engine, the front-end gear train layout is compact. To place the cargo compartment air conditioning compressor on the right side, it is necessary to encroach on the design space of other parts, while also ensuring the alignment and stability of the entire double-layer belt drive. A newly developed second-layer air conditioning compressor bracket replaces the original water pipe bracket, serving to secure the cargo compartment air conditioning compressor and water pipes. Simultaneously, a new fan bracket and pulley capable of bearing the force of the entire double-layer gear train are developed, ensuring the stability and normal operation of the gear train. The first-layer generator bracket is optimized to meet the stability requirements of the cab air conditioning compressor.

[0029] In the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features in a single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, with each claim representing a separate preferred embodiment of the invention.

[0030] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use this invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0031] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

[0032] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A double-layer belt drive pulley system mounted on the left and right sides of the dual air conditioners at the front of an engine, characterized in that: It includes a first-layer wheel drive belt (1), a generator bracket (2), a first-layer cab air conditioning compressor (3), a second-layer cargo box air conditioning compressor (4), a second-layer air conditioning compressor bracket (5), a second-layer self-tensioning belt (6), a fan bracket (7), a first-layer pulley (13), and a second-layer pulley (14), wherein: The first-floor cab air conditioning compressor (3) is located on the lower left side of the front end of the engine and is bolted to the generator bracket (2); the second-floor cargo box air conditioning compressor (4) is located on the upper right side of the front end of the engine and is bolted to the second-floor air conditioning compressor bracket (5); the second-floor air conditioning compressor bracket (5) is fixedly installed on the cylinder head and intake manifold; the fifth bolt (15) passes through the bolt holes on the second-floor pulley (14) and the first-floor pulley (13) in sequence, and bolts the second-floor pulley (14) and the first-floor pulley (13) to the fan bracket (7); the fan bracket (7) is fixedly installed on the engine block; the first-floor cab air conditioning compressor (3) is powered by the first-floor pulley drive belt (1); the second-floor cargo box air conditioning compressor (4) is powered by the second-floor self-tensioning belt (6).

2. The double-layer belt drive pulley system installed on the left and right sides of the dual air conditioners at the front end of the engine according to claim 1, characterized in that: The first-layer gear train drive belt (1) is an 8pk belt and is used to transmit the tension of crankshaft rotation to the gear train.

3. The double-layer belt drive pulley system installed on the left and right sides of the dual air conditioners at the front end of the engine according to claim 2, characterized in that: The second-layer self-tensioning belt (6) is a 4pk belt and is used to drive the second-layer cargo compartment air conditioning compressor (4) to rotate.

4. The double-layer belt drive pulley system installed on the left and right sides of the dual air conditioners at the front end of the engine according to claim 3, characterized in that: The air conditioning compressor (3) in the first-floor cab is fixed to the generator bracket (2) by passing through three partitions (9) with three first bolts (8); the first bolts (8) are of type M8X1.25; the partitions (9) have an inner diameter of 10mm and a thickness of 4mm and are used to prevent torque attenuation.

5. The double-layer belt drive pulley system installed on the left and right sides of the dual air conditioners at the front end of the engine according to claim 4, characterized in that: The second-layer pulley (14) and the first-layer pulley (13) are fixedly mounted on the fan bracket (7) by four fifth bolts (15); the fifth bolts (15) are of type M10x1.

5.

6. The double-layer belt drive pulley system installed on the left and right sides of the dual air conditioners at the front end of the engine according to claim 5, characterized in that: The second-layer air conditioning compressor bracket (5) is fixedly installed on the cylinder head and intake manifold by a second bolt (10), a third bolt (11) and three fourth bolts (12); the second bolt (10) is used to connect the second-layer air conditioning compressor bracket (5) to the bolt hole on the side of the cylinder head; the third bolt (11) is used to connect the second-layer air conditioning compressor bracket (5) to the intake manifold; the fourth bolt (12) connects the second-layer air conditioning compressor bracket (5) to the bolt hole on the front of the cylinder head.

7. The double-layer belt drive pulley system installed on the left and right sides of the dual air conditioners at the front end of the engine according to claim 6, characterized in that: The second bolt (10) is of type M8x1.25; the third bolt (11) is of type M6x1; and the fourth bolt (12) is of type M8x1.25.

Images