阅读说明：本技术 一种特种车辆空调压缩机皮带装配装置及装配方法 (Special vehicle air conditioner compressor belt assembling device and assembling method ) 是由 李颖 李国强 龚铮 宋旭杰 毕泗元 王延龙 王肇楷 袁野 郑绍华 郑晓萌 刘长华 于 2020-12-21 设计创作，主要内容包括：本发明提出一种特种车辆空调压缩机皮带装配装置及装配方法,该装配装置包括左支撑座、右支撑座、滑动杆、限位板、螺纹杆、上板、连杆、长销轴和短销轴。本装置利用上板和螺纹杆装配后焊接螺母保证左支撑座和右支撑座的移动距离,从而保证皮带张紧力可完成理论值±5％可调；利用左支撑座和右支撑座上的滑动槽与滑杆的同轴度为0.02,以达到验证空调压缩机皮带轮与综合动力传动装置输出皮带轮相对位置的作用；仅通过一次装配即可达到空调压缩机皮带的装配要求,节约反复装调时间,提高工作效率,减小因多次调整皮带张紧力而造成的误差；通过调整控制力矩的大小,实现对皮带张紧力的调节,可有效避免重复工作,提高工作效率。(The invention provides a special vehicle air conditioner compressor belt assembling device and a special vehicle air conditioner compressor belt assembling method. The device ensures the moving distance of the left supporting seat and the right supporting seat by welding nuts after the upper plate and the threaded rod are assembled, thereby ensuring that the tension of the belt can be adjusted by +/-5% of a theoretical value; the coaxiality of the sliding grooves in the left supporting seat and the right supporting seat and the sliding rod is 0.02, so that the effect of verifying the relative positions of the belt pulley of the air conditioner compressor and the output belt pulley of the comprehensive power transmission device is achieved; the assembly requirement of the air conditioner compressor belt can be met only through one-time assembly, the repeated assembly and adjustment time is saved, the working efficiency is improved, and the error caused by adjusting the belt tension for multiple times is reduced; the tension of the belt can be adjusted by adjusting the control torque, so that repeated work can be effectively avoided, and the working efficiency is improved.)

1. The belt assembling device for the air-conditioning compressor of the special vehicle is characterized by comprising a left supporting seat, a right supporting seat, a sliding rod, a limiting plate, a threaded rod, an upper plate, a connecting rod, a long pin shaft and a short pin shaft; wherein the content of the first and second substances,

the left supporting seat and the right supporting seat are used for supporting the belt pulley; the sliding rod and the limiting plate are connected between the left supporting seat and the right supporting seat to play a role in guiding and limiting;

the sliding rod comprises two sliding rods and a lower plate; the lower plate is welded between the two slide bars, guide grooves are machined in the slide bars, and two ends of the two slide bars are respectively installed in the slide grooves of the left support seat and the right support seat; the limiting plate is connected to the outer sides of the left supporting seat and the right supporting seat;

the threaded rod is screwed into the upper plate and the lower plate; the lower section of the threaded rod is connected with a central threaded hole of the lower plate, the upper section of the threaded rod is connected with a central threaded hole of the upper plate, and the top end of the threaded rod is fixedly connected with a nut in a welding mode; two sides of the upper plate are respectively provided with a pin shaft hole;

the connecting rod comprises a long pipe, a short pipe and connecting round steel; wherein, one end of each of the two connecting round steels is welded with a short pipe, and the other end of each of the two connecting round steels is welded with a long pipe;

the long pin shaft penetrates through the positioning pin hole of the limiting plate, the sliding groove of the left supporting seat or the right supporting seat, the guide groove of the sliding rod and the long pipe of the connecting rod in sequence, and the short pin shaft penetrates through the short pipe of the connecting rod and the pin shaft hole of the upper plate in sequence, so that the left side and the right side of the upper plate are connected with the sliding rod through the connecting rod respectively.

2. The belt assembly apparatus of claim 1, wherein the long pin and the short pin are each positioned and secured by a flat washer and a cotter pin.

3. The belt assembling apparatus according to claim 1, wherein the sliding grooves of said left and right supports are coaxial with the sliding rod by 0.02.

4. A special vehicle air conditioner compressor belt assembling method is characterized in that the assembling device of any one of claims 1-3 is used, and the assembling method comprises the following steps:

s1, calculating the torque corresponding to the tension force in the assembly requirement of the air conditioner compressor belt;

s2, an output belt pulley of the comprehensive power transmission device is positioned on the comprehensive transmission device, a belt pulley of the air-conditioning compressor is preassembled on the vehicle body, the distance between the two belt pulleys is adjusted by rotating an adjusting bolt on the air-conditioning compressor, and a fixing bolt is not screwed up after being installed; the distance between the left supporting seat and the right supporting seat is reduced through the adjusting nut, so that the assembling device is arranged on the inner sides of the two belt pulleys of the air-conditioning compressor and is clamped tightly;

s3, mounting a belt on two belt pulleys; adjusting the tightening torque of the nut according to the torque calculated in the step S1 to enable the belt tension to meet the assembly requirement;

s4, determining the position of the air conditioner compressor belt pulley by rotating the adjusting bolt, and ensuring that the belt is always in a target tension state;

s5, fixing the distance between the two belt pulleys by adjusting the fixing bolt;

s6, adjusting a nut, reducing the distance between the left supporting seat and the right supporting seat, taking down the assembling device, and completing the assembling.

Technical Field

The invention belongs to the technical field of assembly of belt transmission mechanisms, and particularly relates to a belt assembly device and an assembly method for an air conditioner compressor of a special vehicle.

Background

The transmission mode of the special vehicle air conditioner compressor belt is belt transmission, and the special vehicle air conditioner compressor belt is composed of a triangle belt, a belt wheel and the like, and has the advantages of stable work, low noise, simple structure, no need of lubrication, buffering and vibration absorption and the like. The belt tension is used as an important factor for ensuring normal operation of transmission, and the belt tension degree needs to be adjusted repeatedly for many times in the assembling process of the air conditioner compressor belt so as to meet the assembling requirement. In the assembling process, the tensioning degree is not too loose or too tight, the too loose can not ensure enough tensioning force, and the phenomena of slipping and the like are easy to occur when the air-conditioning compressor works; the excessive tightness can aggravate the abrasion of the belt of the air conditioner compressor and shorten the service life.

In the assembly process of the existing air condition compressor belt of the special vehicle, after the V-belt is installed, the tension is judged by measuring the drooping amount of the belt under a certain acting force. If the tension force is not proper, repeated adjustment, installation and measurement are carried out, and finally the assembling requirement is met. The existing assembly method is high in rework rate, low in assembly efficiency and incapable of guaranteeing assembly consistency.

Disclosure of Invention

Technical problem to be solved

The invention provides a special vehicle air-conditioning compressor belt assembling device and method, which are used for solving the technical problem that the belt tension needs to be adjusted repeatedly and cannot meet the assembling requirement through one-time assembly and adjustment in the air-conditioning compressor belt mounting process, and achieving the effect of improving high-efficiency assembly which can meet the assembling requirement through one-time mounting.

(II) technical scheme

The invention provides a belt assembling device of an air-conditioning compressor of a special vehicle, which comprises a left supporting seat, a right supporting seat, a sliding rod, a limiting plate, a threaded rod, an upper plate, a connecting rod, a long pin shaft and a short pin shaft, wherein the left supporting seat is fixedly connected with the right supporting seat; wherein the content of the first and second substances,

the left supporting seat and the right supporting seat are used for supporting the belt pulley; the sliding rod and the limiting plate are connected between the left supporting seat and the right supporting seat to play a role in guiding and limiting;

the sliding rod comprises two sliding rods and a lower plate; the lower plate is welded between the two slide bars, guide grooves are machined in the slide bars, and two ends of the two slide bars are respectively installed in the slide grooves of the left support seat and the right support seat; the limiting plate is connected to the outer sides of the left supporting seat and the right supporting seat;

the threaded rod is screwed into the upper plate and the lower plate; the lower section of the threaded rod is connected with a central threaded hole of the lower plate, the upper section of the threaded rod is connected with a central threaded hole of the upper plate, and the top end of the threaded rod is fixedly connected with a nut in a welding mode; two sides of the upper plate are respectively provided with a pin shaft hole;

the connecting rod comprises a long pipe, a short pipe and connecting round steel; wherein, one end of each of the two connecting round steels is welded with a short pipe, and the other end of each of the two connecting round steels is welded with a long pipe;

the long pin shaft penetrates through the positioning pin hole of the limiting plate, the sliding groove of the left supporting seat or the right supporting seat, the guide groove of the sliding rod and the long pipe of the connecting rod in sequence, and the short pin shaft penetrates through the short pipe of the connecting rod and the pin shaft hole of the upper plate in sequence, so that the left side and the right side of the upper plate are connected with the sliding rod through the connecting rod respectively.

Furthermore, the long pin shaft and the short pin shaft are positioned and fixed through the flat washer and the cotter pin.

Furthermore, the coaxiality of the sliding grooves of the left supporting seat and the right supporting seat and the sliding rod is 0.02.

In addition, the invention also provides an assembly method of the special vehicle air conditioner compressor belt, and the assembly method comprises the following steps:

s1, calculating the torque corresponding to the tension force in the assembly requirement of the air conditioner compressor belt;

s2, an output belt pulley of the comprehensive power transmission device is positioned on the comprehensive transmission device, a belt pulley of the air-conditioning compressor is preassembled on the vehicle body, the distance between the two belt pulleys is adjusted by rotating an adjusting bolt on the air-conditioning compressor, and a fixing bolt is not screwed up after being installed; the distance between the left supporting seat and the right supporting seat is reduced through the adjusting nut, so that the assembling device is arranged on the inner sides of the two belt pulleys of the air-conditioning compressor and is clamped tightly;

s3, mounting a belt on two belt pulleys; adjusting the tightening torque of the nut according to the torque calculated in the step S1 to enable the belt tension to meet the assembly requirement;

s4, determining the position of the air conditioner compressor belt pulley by rotating the adjusting bolt, and ensuring that the belt is always in a target tension state;

s5, fixing the distance between the two belt pulleys by adjusting the fixing bolt;

s6, adjusting a nut, reducing the distance between the left supporting seat and the right supporting seat, taking down the assembling device, and completing the assembling.

(III) advantageous effects

The invention provides a special vehicle air conditioner compressor belt assembling device and a special vehicle air conditioner compressor belt assembling method.

The technical effects of the invention specifically comprise:

1. the assembly requirement of the air condition compressor belt can be met only through one-time assembly, repeated assembly and adjustment time is saved, working efficiency is improved, and errors caused by multiple times of adjustment of the belt tension are reduced.

2. Be different from traditional belt through the installation and regulation mode of measuring the drooping volume, propose through the size of adjustment control moment, realize the regulation to belt tensioning force.

3. This device belongs to the flexible mounting, can satisfy the assembly requirement of the different belt tensile force size of the same type air condition compressor structure according to actual production design requirement.

4. To the assembly requirement of belt tensile force size commonly used, need not to calculate repeatedly, only need adjust the moment of nut to specific size at every turn, can reach the assembly requirement, effectively avoid the repetitive work, improve work efficiency.

5. The integral structure accords with engineering design, is reliable to use and high in durability, and can continuously meet the requirement of mass production.

6. This device uses unique structure, utilizes upper plate and threaded rod assembly back welded nut to guarantee the displacement of left branch strut seat and right branch strut seat to guarantee that belt tensile force can accomplish theoretical value 5% adjustable.

7. The device utilizes the coaxiality of the sliding grooves on the left supporting seat and the right supporting seat and the sliding rod to be 0.02 so as to achieve the effect of verifying the relative position of the belt pulley of the air conditioner compressor and the output belt pulley of the comprehensive power transmission device.

Drawings

FIG. 1 is a front view of a belt assembly apparatus according to an embodiment of the present invention;

FIG. 2 is a top view of a belt assembly apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic view of a slide bar according to an embodiment of the present invention;

FIG. 4 is a schematic view of a connecting rod according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an air conditioner compressor of a typical special vehicle;

FIG. 6 is a schematic diagram of a typical air conditioner compressor belt adjustment for a special vehicle;

fig. 7 is a schematic view of the belt assembly apparatus according to the embodiment of the present invention.

In the figure: 1-a left support seat; 2-a connecting rod; 3-upper plate; 4-a slide bar; 5-a threaded rod; 6-a limiting plate; 7-long pin shaft; 8-right support seat; 9-a nut; 10-a flat washer; 11-a cotter pin; 12-short pin shaft; 13-a vehicle body; 14-an integrated power transmission output pulley; 15-air condition compressor pulley; 16-a belt; 17-a fixing bolt; 18-adjusting bolts; 201-long tube; 202-connecting round steel; 203-short pipe; 401-a slide bar; 402-lower plate.

Detailed Description

In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.

The embodiment provides a special vehicle air condition compressor belt assembly quality, and its structure is as shown in fig. 1 and 2, including left supporting seat 1, right supporting seat 8, slide bar 4, limiting plate 6, threaded rod 5, upper plate 3, connecting rod 2, long round pin axle 7 and short round pin axle 12.

The left supporting seat 1 and the right supporting seat 8 are used for supporting the belt pulley. Slide bar 4 and limiting plate 6 are all connected between left side supporting seat 1 and right branch seat 8, play the spacing effect of direction.

As shown in fig. 3, the sliding rod 4 includes two sliding rods 401 and a lower plate 402, the lower plate 402 is welded between the two sliding rods 401, a guide groove is formed in the sliding rod 401, and two ends of the two sliding rods 401 are respectively installed in the sliding grooves of the left support seat 1 and the right support seat 8. Limiting plate 6 is connected in the outside of left supporting seat 1 and right supporting seat 8.

The threaded rod 5 is screwed into the upper plate 3 and the lower plate 402. The lower section of the threaded rod 5 is connected with the central threaded hole of the lower plate 402, the upper section of the threaded rod 5 is connected with the central threaded hole of the upper plate 3, and the top end of the threaded rod 5 is fixedly connected with the nut 9 in a welding mode and used for adjusting the tension force. The two sides of the upper plate 3 are respectively provided with a pin shaft hole.

As shown in fig. 4, each connecting rod 2 includes a long pipe 201, a short pipe 203, and connecting round steel 202. Wherein, a short pipe 203 is welded at one end of each of the two connecting round bars 202, and the other end of each of the two connecting round bars 202 is welded with a long pipe 201.

The long pin shaft 7 penetrates through a positioning pin hole of the limiting plate 6, a sliding groove of the left supporting seat 1 or the right supporting seat 8, a guide groove of the sliding rod 401 and a long pipe 201 of the connecting rod 2 in sequence, and the short pin shaft 12 penetrates through a short pipe 203 of the connecting rod 2 and a pin shaft hole of the upper plate 3 in sequence, so that the left side and the right side of the upper plate 3 are connected with the sliding rod 401 through the connecting rod 2 respectively. The long pin shaft 7 and the short pin shaft 12 are positioned and fixed through a flat gasket 10 and a cotter pin 11.

After the assembly is completed, the coaxiality of the sliding grooves of the left supporting seat 1 and the right supporting seat 8 and the sliding rod 401 in the device is 0.02.

The method for assembling the belt of the air conditioner compressor of the special vehicle by using the device comprises the following steps as shown in figures 5-7:

s1, calculating the torque corresponding to the tension force in the assembly requirement of the air conditioner compressor belt;

s2, the output belt pulley 14 of the comprehensive power transmission device is positioned on the comprehensive power transmission device, the belt pulley 15 of the air-conditioning compressor is preassembled on the vehicle body 13, the distance between the two belt pulleys is adjusted by rotating the adjusting bolt 18 on the air-conditioning compressor, and the fixing bolt 17 is not screwed after being assembled. The distance between the left supporting seat 1 and the right supporting seat 8 is reduced through the adjusting nut 9, so that the assembling device is arranged on the inner sides of two belt pulleys of the air-conditioning compressor and is clamped tightly;

s3, mounting the belt 16 on two belt pulleys; according to the torque calculated in S1, the tightening torque of the nut 9 is adjusted to enable the tension of the belt 16 to meet the assembly requirement;

s4, determining the position of the air conditioner compressor belt pulley 15 by rotating the adjusting bolt 18, and ensuring that the belt is always in a target tension state;

s5, fixing the distance between the two belt pulleys by adjusting the fixing bolt 17;

s6, adjusting a nut 9, reducing the distance between the left support seat 1 and the right support seat 8, taking down the assembling device, and completing the assembly.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.