Development of a multi-power output multi-functional application platform chassis

Abstract

The invention discloses a multi-power output multi-functional application platform chassis development, belonging to the technical field of whole vehicle and whole machine design, comprising a dual-pressure dual-engine front end wheel system primary main wheel system change mechanism, a modified vehicle dual-compressor front end wheel system, a modified vehicle dual-generator front end wheel system and a dual-engine dual-pressure integrated special bracket, wherein the dual-engine dual-pressure integrated special bracket is a functional integrated bracket integrating multiple power outputs and multiple modified vehicle uses; an engine cylinder body, which is fixedly installed on one side of the engine cylinder body, and innovatively designs two different fixed brackets originally required for loads of different functions to become one bracket, and also takes into account the belt wrap angle of the original vehicle primary main wheel system and the secondary modified power wheel system, the static tension force of the belt drive, and the strong rigidity design of the bracket, so that one wheel system platform can meet different loads, thereby realizing that this wheel system has two different functions at the same time, thereby improving the platform versatility and modification convenience as a whole and reducing the development cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of complete vehicle and complete machine design, and specifically relates to the development of a multi-power output multi-functional application platform chassis. Background Art

[0002] In the early stage of the development of modified light passenger vehicles with mobile office cabins on land and various modification purposes, in order to fully consider the platformization and versatility of the vehicle chassis as well as the durability, stability and reliability, a multi-power output and multi-functional passenger car chassis has been developed to improve the overall adaptability to the subsequent modification market and implement the important goal of adhering to customer-centricity. This special chassis takes into account the performance and layout matching of compressors commonly used in the industry, and can also be used for the performance and layout of high-power 12V-150 / 180A generators and 48V*75A motors.

[0003] Traditional modified compressor brackets are single-purpose and usually welded with Q235# steel or assembled with multiple 45# steel brackets by bolting. The drive belt uses a V-belt or a multi-V belt with a slide groove for tensioning. The pre-tightening bolts must be adjusted every 4-5000 kilometers to ensure the stability of the front-end gear train. If it is not designed at the front end, the parallelism of the drive belt groove is not absolutely guaranteed, which makes it easy to wear and slip. The power output efficiency of the gear train will be reduced, the noise will also increase, and the life cycle will need to be replaced at most 50,000 kilometers. In addition, it is usually difficult to consider the overall optimization of the original vehicle's primary main gear train when adding brackets. The added brackets are usually installed outside the original wheel train. The added brackets and the modified unit have a long cantilever mass. The modal, strength, and stiffness are not included in the re-calibration of the entire gear train of the main engine manufacturer, which increases the uncertainty of the engine's torsional vibration, noise, and the layout of the cabin moving parts. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-power output multi-functional application platform chassis development to solve the problems raised in the above background technology that the power output efficiency of the wheel system will be reduced, the noise will also increase, the life cycle will need to be replaced after a maximum of 50,000 kilometers, and the newly added brackets and modified units have a long cantilever mass, the modal, strength, and stiffness are not included in the entire wheel system of the main engine factory and need to be re-calibrated, which increases the uncertainty of the engine's torsional vibration, noise, and the layout of the moving parts in the cabin.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-power output multi-functional application platform chassis development, comprising:

[0006] A first-stage main gear train change mechanism for a dual-compressor dual-engine front-end gear train, a dual-compressor front-end gear train for a modified vehicle, a dual-generator front-end gear train for a modified vehicle, and a dual-engine dual-pressure integrated special bracket, wherein the dual-engine dual-pressure integrated special bracket is a functional integrated bracket that integrates multiple power outputs and multiple modified vehicle uses;

[0007] An engine cylinder block, which is fixedly mounted on one side of the engine body;

[0008] A modified vehicle generator and a modified vehicle compressor, both of which are fixedly installed on one side of the dual-generator and dual-pressure integrated special bracket;

[0009] A newly added multi-V belt for a modified compressor is connected to the outer side of the drive shaft of the modified vehicle compressor;

[0010] A dedicated driving main belt connected to the outer side of the modified vehicle generator;

[0011] The automatic tensioning wheel for the secondary gear train modification is respectively arranged on the inner side of the multi-V belt and the dedicated driving main belt for the newly added modified compressor.

[0012] The above scheme is adopted, by setting up a generator for modified vehicles and a compressor for modified vehicles, and a newly added modified compressor meets the needs of refrigerated vehicles such as vaccines, fresh food, biochemical, and blood. The newly added modified motor has a variety of power outputs to meet the needs of most mobile charging and load-bearing light commercial vehicles, such as command vehicles, service inspection vehicles, and RVs. By setting up a special bracket for dual-engine and dual-pressure integration, an automatic tensioner for secondary wheel system modification, and a newly added multi-V belt for modified compressors, the special bracket of the wheel system can be used for at least two groups of compressors or generators with two different loads, and an automatic tensioner and a multi-V belt design are used to ensure the output power and ensure that it is stable and reliable, so that the power output of the front end of the modified vehicle is reliable and durable, and the belt can be adjusted according to the force adaptive test tension, and the durability is the same as the standard vehicle life cycle, reaching more than 200,000 kilometers, which greatly meets the chassis with different loads and multiple power output conditions, and meets the continuous, stable, and reliable functions and requirements of various modified vehicles for power output loads. In order to meet the needs of accurate and reasonable space utilization and layout specifications, the newly developed special bracket for dual-engine and dual-pressure integration, the automatic tensioner for secondary gear train modification and the multi-V belt for the newly added modified compressor all take into account the idea of ​​universal integration. More importantly, the new bracket is closely attached to the cylinder design, and the original vehicle generator is moved 5mm outward. It is fastened with 5 high-grade 10.9-grade M10 high-strength bolts. The new bracket is designed with a short cantilever and high rigidity, and has little effect on the torsional vibration of the vehicle and the engine. The crankshaft pulley, special bracket for dual-engine and dual-pressure integration, and automatic tensioner for secondary gear train modification can be assembled in the main engine factory, and can be quickly assembled in the engine factory and the vehicle assembly factory according to the mass production process of the vehicle. The generator mechanism on the load side is installed at the factory, and the compressor is quickly installed by each modification factory according to different brands selected according to the different needs and prices of customers.

[0013] As a preferred embodiment, five groups of bolt holes are provided through one side of the dual-engine dual-pressure integrated special bracket, and the dual-engine dual-pressure integrated special bracket is fixed to the bolt holes of the engine cylinder block by five high-strength bolts.

[0014] As a preferred embodiment, two groups of modified automatic tensioner installation positioning holes are provided on one side of the dual-engine dual-pressure integrated special bracket, and the automatic tensioner used for secondary wheel system modification is connected to the dual-engine dual-pressure integrated special bracket through the modified automatic tensioner installation positioning hole.

[0015] As a preferred embodiment, the first-stage main gear train change mechanism of the dual-pressure dual-engine front-end gear train includes the first idler gear of the main gear train, the original vehicle generator, the first dedicated crankshaft pulley and the first-stage gear train multi-V belt. The original vehicle generator is 5mm away from the dual-engine dual-pressure integrated dedicated bracket, and the original vehicle generator and the dual-engine dual-pressure integrated dedicated bracket are fastened with 5 high-grade 10.9 grade M10 high-strength bolts.

[0016] As a preferred embodiment, the front end gear train of the modified vehicle's dual compressor includes a dedicated bracket for dual-engine and dual-compressor integration, a first dedicated crankshaft pulley, a dedicated steering pulley, an automatic tensioner for secondary gear train modification, a modified vehicle compressor, a newly added idler for modification of the No. 1 secondary gear train, and a multi-V belt for the newly added modified compressor.

[0017] As a preferred embodiment, a first modified compressor hole and a second modified compressor hole are respectively provided on one side of the dual-engine dual-pressure integrated special bracket, and the first modified compressor hole and the second modified compressor hole are respectively used to fix two sets of modified vehicle compressors.

[0018] As a preferred embodiment, the front end gear train of the dual-generator of the modified vehicle includes the dual-engine and dual-pressure integrated special bracket, a second special crankshaft pulley, a newly added idler pulley for modification of the second secondary gear train, an automatic tensioner pulley for modification of the secondary gear train, a special drive main belt, a first-level main gear train idler pulley, a modified vehicle generator and a newly added modified generator elastic belt.

[0019] As a preferred embodiment, one side of the dual-generation dual-voltage integrated special bracket is respectively provided with a first modified generator mounting hole and a second modified generator mounting hole, and the first modified generator mounting hole and the second modified generator mounting hole are respectively used to fix two sets of modified vehicle generators.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This multi-power output multi-functional application platform chassis development is equipped with a modified vehicle generator and a modified vehicle compressor. The newly added modified compressor meets the needs of refrigerated vehicles such as vaccines, fresh food, biochemical, and blood. The newly added modified motor has a variety of power outputs to meet the needs of most light passenger vehicles with mobile charging and load, such as command vehicles, service inspection vehicles, and RVs;

[0022] The multi-power output multi-functional application platform chassis is developed by setting a special bracket for dual-engine and dual-pressure integration, an automatic tensioning wheel for secondary gear train modification, and a multi-V belt for newly added modified compressors. The special bracket of the gear train can be used for at least two groups of compressors or generators with two different loads.

[0023] The development of a multi-power output multi-functional application platform chassis adopts an automatic tensioner and a multi-V belt design to ensure the output power and ensure that it is stable and reliable, making the front-end power output of the modified vehicle reliable and durable, and making the belt self-adaptive and tensioned according to the force, and the durability life is the same as the standard vehicle life cycle, reaching more than 200,000 kilometers, which greatly meets the chassis with different loads and multiple power output conditions, and meets the needs of various modified vehicles for continuous, stable and reliable functions of power output loads and accurate and reasonable space utilization and layout specifications;

[0024] The dual-engine dual-pressure integrated special bracket, the automatic tensioner for secondary wheel system modification and the multi-V belt for the newly added modified compressor developed for this multi-power output multi-functional application platform chassis all take into account the idea of ​​universal integration. More importantly, the newly added bracket is tightly fitted to the cylinder design, and the original vehicle generator is moved 5mm outward. It is fastened with 5 high-grade 10.9-grade M10 high-strength bolts. The newly added bracket is designed with a short cantilever and high rigidity, and has little effect on the torsional vibration of the vehicle and the engine. The crankshaft pulley, the dual-engine dual-pressure integrated special bracket, and the automatic tensioner for secondary wheel system modification can be assembled in the main engine factory, and can be quickly assembled in the engine factory and the vehicle assembly factory according to the mass production process of the vehicle. The generator mechanism on the load side is installed at the factory, and the compressor is quickly installed by each modification factory according to the different needs and prices of customers by selecting different brands. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the first-stage main gear train changing mechanism of the double-compression double-engine front end gear train of the present invention;

[0027] Figure 3 It is a schematic diagram of the front end gear train of the dual compressor of the modified vehicle of the present invention;

[0028] Figure 4 It is a schematic diagram of the front end gear train of the dual generator of the modified vehicle of the present invention;

[0029] Figure 5 It is a schematic diagram of the functional integrated bracket structure of the present invention which integrates multiple power outputs and multiple modified vehicle uses.

[0030] In the figure: 1. Engine block; 2. Special bracket for dual-engine dual-pressure integration; 3. First idler of main gear train; 4. Original vehicle generator; 5. First special crankshaft pulley; 6. Special steering pulley; 7. Poly-V belt of primary gear train; 8. Automatic tensioner for secondary gear train modification; 9. Special driving main belt; 10. Idler of primary main gear train; 11. Poly-V belt for newly added modified compressor; 12. Modified vehicle generator; 13. Elastic belt for newly added modified generator; 14. Hole of first modified compressor; 15. Mounting hole of first modified generator; 16. Mounting hole of second modified generator; 17. Hole of second modified compressor; 18. Bolt hole; 19. Positioning hole for installation of modified automatic tensioner; 20. Newly added idler for modification of No. 1 secondary gear train; 21. Modified vehicle compressor; 22. Newly added idler for modification of No. 2 secondary gear train; 23. Second special crankshaft pulley. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the embodiments.

[0032] The following examples are used to illustrate the present invention, but they cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions. Simple improvements to the method of the present invention under the premise of the concept of the present invention belong to the scope of protection claimed in the present invention.

[0033] See also Figure 1-5 The present invention provides a multi-power output multi-functional application platform chassis development, including a dual-engine dual-pressure integrated special bracket 2, one side of the dual-engine dual-pressure integrated special bracket 2 is provided with five groups of bolt holes 18, the dual-engine dual-pressure integrated special bracket 2 is fixed to the bolt holes 18 of the engine cylinder body 1 by 5 high-strength bolts, the dual-engine dual-pressure integrated special bracket 2 is tightly attached to the side of the engine cylinder body 1 and fixed with 5 high-strength bolts, the original vehicle generator 4 is offset to the right side, the first idler wheel 3 of the main wheel system, the first special crankshaft pulley 5 and the first-stage wheel system multi-V belt 7 meet the dynamic design of the first-stage main wheel system original vehicle compressor and generator.

[0034] The first-stage main gear train change mechanism of the dual-pressure dual-engine front-end gear train includes the first idler gear 3 of the main gear train, the original vehicle generator 4, the first special crankshaft pulley 5 and the first-stage gear train multi-V belt 7. The original vehicle generator 4 is 25mm away from the dual-engine dual-pressure integrated special bracket, and the original vehicle generator 4 and the dual-engine dual-pressure integrated special bracket 2 are fastened by 5 high-grade 10.9-grade M10 high-strength bolts. The dual-engine dual-pressure integrated special bracket 2 is designed to be close to the engine cylinder block 1. The original vehicle generator 4 is moved outward by 5mm and fastened with 5 high-grade 10.9-grade M10 flange high-strength bolts. The special bracket 2 is designed with a short cantilever and high rigidity, and has a small effect on the torsional vibration of the whole vehicle and the engine. Through the OEM's CAE analysis of the whole machine and full-load testing of the whole vehicle, the process design also takes into account the simplicity, accuracy and reliability of the special design. The crankshaft pulley dual-engine dual-pressure integrated special bracket 2 and the automatic tensioner for secondary gear system modification can be assembled in front of the OEM, and can be quickly assembled in the engine factory and the vehicle assembly plant according to the mass production process. The generator mechanism is installed at the factory, and the compressor is quickly installed by each modification factory according to customer demand and price.

[0035] The front end wheel system of the modified vehicle dual compressor comprises a special bracket 2 for dual-engine and dual-pressure integration, a first special crankshaft pulley 5, a special steering pulley 6, an automatic tensioning wheel 8 for secondary wheel system modification, a modified vehicle compressor 21, a newly added idler wheel 20 for the No. 1 secondary wheel system modification and a newly added multi-V belt 11 for the modified compressor. A first modified compressor hole 14 and a second modified compressor hole 17 are respectively arranged on one side of the special bracket 2 for dual-engine and dual-pressure integration, and the first modified compressor hole 14 and the second modified compressor hole 17 are respectively used to fix two groups of modified vehicle compressors 21. The modified vehicle compressor 21 is assembled on the special bracket 2 for dual-engine and dual-pressure integration with high-strength bolts. The automatic tensioning wheel 8 for secondary wheel system modification, the newly added idler wheel 20 for the No. 1 secondary wheel system modification, the first special crankshaft pulley 5 and the special steering pulley 6 are driven by the newly added multi-V belt 11 for the modified compressor, which meets the requirements of the force of the secondary modified wheel system and the belt wrap angle and force design, and can quickly realize the power output of the modified refrigeration unit.

[0036] The front end wheel system of the dual-generator of the modified vehicle includes the above-mentioned dual-engine and dual-pressure integrated special bracket 2, a second special crankshaft pulley 23, a newly added idler wheel 22 for modification of the second secondary wheel system, an automatic tensioning wheel 8 for modification of the secondary wheel system, a special driving main belt 9, a primary main wheel system idler wheel 10, a modified vehicle generator 12 and a newly added modified generator elastic belt 13. One side of the dual-engine and dual-pressure integrated special bracket 2 is respectively penetrated with a first modified generator mounting hole 15 and a second modified generator mounting hole 16, and the first modified generator mounting hole 15 and the second modified generator mounting hole 16 are respectively used to fix two sets of modified vehicle generators 12. The accessories of the modified vehicle generator 12 (12V and 48V), the automatic tensioning wheel 8 for modification of the secondary wheel system, the primary main wheel system idler wheel 10, and the second special crankshaft pulley 23 are driven by the newly added modified generator elastic belt 13, which meets the force requirements of each wheel system and the belt wrap angle and force requirements, and can realize the output of power consumption of modified vehicles such as command vehicles, RVs, and services.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Development of a multi-power output multi-functional application platform chassis, characterized in that: include: A first-stage main gear train changing mechanism for a dual-compression dual-engine front-end gear train, a dual-compressor front-end gear train for a modified vehicle, a dual-generator front-end gear train for a modified vehicle, and a dual-engine dual-pressure integrated special bracket (2), wherein the dual-engine dual-pressure integrated special bracket (2) is a functional integrated bracket integrating multiple power outputs and multiple modified vehicle uses; An engine cylinder block (1) is fixedly mounted on one side of the engine body; A modified vehicle generator (12) and a modified vehicle compressor (21), both of which are fixedly mounted on one side of the dual-generator and dual-pressure integrated special bracket (2); A newly added multi-V belt (11) for a modified compressor is connected to the outer side of the drive shaft of the modified vehicle compressor (21); A dedicated driving main belt (9) connected to the outside of the modified vehicle generator (12); An automatic tensioning wheel (8) for modifying the secondary gear train, which is respectively arranged on the inner side of the multi-V belt (11) for the newly added modified compressor and the dedicated driving main belt (9); Two groups of modified automatic tension wheel installation positioning holes (19) are provided through one side of the dual-engine dual-pressure integrated special bracket (2); the automatic tension wheel (8) used for secondary gear train modification is connected to the dual-engine dual-pressure integrated special bracket (2) via the modified automatic tension wheel installation positioning holes (19); The first-stage main gear train changing mechanism of the dual-pressure dual-engine front-end gear train comprises a first idler wheel (3) of the main gear train, an original vehicle generator (4), a first dedicated crankshaft pulley (5) and a first-stage gear train multi-V belt (7), wherein the original vehicle generator (4) is 5 mm away from the dual-engine dual-pressure integrated dedicated bracket (2), and the original vehicle generator (4) and the dual-engine dual-pressure integrated dedicated bracket (2) are fastened by five high-grade 10.9-grade M10 high-strength bolts; The front end gear train of the modified vehicle dual compressor comprises a special bracket for dual engine and dual compressor integration (2), a first special crankshaft pulley (5), a special steering pulley (6), an automatic tensioning pulley (8) for secondary gear train modification, a modified vehicle compressor (21), a newly added idler wheel (20) for the first secondary gear train modification, and a newly added multi-V belt (11) for the modified compressor; A first modified compressor hole (14) and a second modified compressor hole (17) are respectively provided on one side of the dual-engine dual-pressure integrated special bracket (2), and the first modified compressor hole (14) and the second modified compressor hole (17) are respectively used to fix two sets of modified vehicle compressors (21); The front end gear train of the dual generator of the modified vehicle comprises the above-mentioned dual-engine dual-pressure integrated special bracket (2), a second special crankshaft pulley (23), a newly added idler wheel (22) for modification of the second secondary gear train, an automatic tensioning wheel (8) for modification of the secondary gear train, a special driving main belt (9), a primary main gear train idler wheel (10), a generator for the modified vehicle (12) and a newly added elastic belt (13) for the modified generator; A first modified generator mounting hole (15) and a second modified generator mounting hole (16) are respectively provided through one side of the dual-generator dual-voltage integrated special bracket (2), and the first modified generator mounting hole (15) and the second modified generator mounting hole (16) are respectively used to fix two sets of modified vehicle generators (12).

2. The multi-power output multi-function application platform chassis development according to claim 1 is characterized by: One side of the dual-engine dual-pressure integrated special bracket (2) is provided with five groups of bolt holes (18), and the dual-engine dual-pressure integrated special bracket (2) is fixed to the bolt holes (18) of the engine cylinder body (1) by means of five high-strength bolts.

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