CN211495880U - Lifting driving system for medium-length vehicle body - Google Patents
Lifting driving system for medium-length vehicle body Download PDFInfo
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- CN211495880U CN211495880U CN201921880392.XU CN201921880392U CN211495880U CN 211495880 U CN211495880 U CN 211495880U CN 201921880392 U CN201921880392 U CN 201921880392U CN 211495880 U CN211495880 U CN 211495880U
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Abstract
The utility model relates to a well long lift actuating system for automobile body, this system include driving motor (31), a plurality of band pulley and a plurality of eccentric rocking arm, band pulley and eccentric rocking arm coaxial coupling, band pulley and driving motor (31) synchronous connection, the axle both ends be equipped with bloated cover (38), bloated cover (38) including bloated cover inner ring (381), bloated cover outer ring (382), bloated cover inner ring (381) and axle butt, the wheel hub butt of bloated cover outer ring (382) and band pulley or eccentric rocking arm. Compared with the prior art, the utility model has the advantages of the running precision is high and steady, reduce down time, the operation is quiet, the structure is firm, bearing capacity is strong.
Description
Technical Field
The utility model belongs to the technical field of vehicle production and specifically relates to a driving system for medium and long automobile body is related to.
Background
The main process flow of the elevator is that the sledge is used as a tool clamp for bearing the vehicle body, the bearing vehicle body is conveyed to a corresponding station, the elevator lifts the bearing vehicle body and the sledge to a corresponding height, the rolling machine runs to drive the vehicle body and the sledge to synchronously walk on the next step, the rolling machine is conveyed to the next station, the rear elevator descends to return to the original point, and the steps are repeated.
The existing lifting driving system for conveying medium and long vehicle bodies on the market at present has some defects, mainly comprising the following points:
(1) roller chain drives of drive systems have some drawbacks with respect to toothed belt transmission: the roller chain and the chain wheel are easy to wear each other in a working punch, the friction clearance between the chain wheel and the chain causes unstable operation of equipment, and the chain is easy to send off, so a tensioning device is generally required to be installed to ensure the precision;
(2) secondly, lubrication is very important for chain transmission, the chain can be abraded only by lubrication, the service life is prolonged, oil or lubricating grease is needed for lubrication, so that the working environment is influenced by lubricating grease, the cost is increased, simple manual lubrication is realized, and other auxiliary components are needed in a complicated way;
(3) the chain transmission also has the defects of noise, heavy weight, low efficiency and the like, and is gradually replaced by a high-quality belt transmission under the allowable condition.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a well long automobile body is with lift actuating system that running precision is high and steady, reduce down time, operation quiet, the structure is firm, bearing capacity is strong in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
the lifting driving system comprises a driving motor, a plurality of belt wheels and a plurality of eccentric rocker arms, wherein the belt wheels are coaxially connected with the eccentric rocker arms, the belt wheels are synchronously connected with the driving motor, expansion sleeves are arranged at two ends of each shaft, each expansion sleeve comprises an expansion sleeve inner ring and an expansion sleeve outer ring, the expansion sleeve inner rings are abutted to the shafts, and the expansion sleeve outer rings are abutted to the wheel hubs of the belt wheels or the eccentric rocker arms.
Further, the belt wheel comprises a motor belt wheel, a first main belt wheel, a second main belt wheel and an auxiliary belt wheel, the eccentric rocker arm comprises a main eccentric rocker arm and an auxiliary eccentric rocker arm, the motor belt wheel is coaxially connected with a motor shaft of the driving motor, the first main belt wheel, the main eccentric rocker arm and the second main belt wheel are coaxially connected, the auxiliary belt wheel is coaxially connected with the auxiliary eccentric rocker arm, the motor belt wheel is synchronously connected with the first main belt wheel, the second main belt wheel is synchronously connected with the auxiliary belt wheel, and the auxiliary belt wheel and the second main belt wheel are identical in circumferential size. The motor starts the motor belt wheel on the shaft of the motor to operate, the first main belt wheel is further driven to operate, the second main belt wheel coaxial with the main shaft drives the auxiliary belt wheel to operate, the eccentric rocker arms on the main shaft and the auxiliary shaft synchronously do circular motion, the lifting bracket is driven to move up and down, when the eccentric rocker arms move to the top end, the lifting bracket is lifted up, the lifting bracket falls down when the eccentric rocker arms move down from the top end, the lifter completes one up-and-down lifting motion period every time the eccentric rocker arms rotate for one circle, and the circular size of the auxiliary belt wheel and the second main belt wheel is 1:1, so that the lifting synchronization performance is ensured.
Furthermore, the first main belt wheel, the main eccentric rocker arm and the second main belt wheel are coaxially connected through a shaft, and the shaft is installed on the shaft installation plate through a shaft seat.
Furthermore, the inner ring of the expansion sleeve is abutted against the shaft, and the outer ring of the expansion sleeve is respectively abutted against the hubs of the first main belt wheel, the main eccentric rocker arm, the second main belt wheel, the auxiliary belt wheel or the auxiliary eccentric rocker arm.
Furthermore, the belt wheels are connected in a circular arc tooth matching manner by adopting a synchronous belt. The circular arc tooth matching connection structure improves shearing force, reduces noise and improves transmission efficiency, the synchronous belt is a high-force-retention synchronous belt (gate. Poly. chain. GT, carbon. TM.) of Gaozi company, a belt core wire of the synchronous belt is super-high-grade carbon fiber used as a belt tension wire material, the service life of the synchronous belt is 3-4 times that of a chain, the synchronous belt has high strength and extremely light weight, the elongation is higher, the flexibility is good, the synchronous belt is oil-resistant and chemical corrosion-resistant, the surface of a nylon tooth is reduced in abrasion and free of lubrication, and the working environment can be from-54 ℃ to 85 ℃. The material of the belt wheel is 45# steel, so that the belt wheel is easy to process and low in cost.
Furthermore, the synchronous belt is made of carbon fiber with long service life and small abrasion.
Furthermore, the material of the belt wheel and the eccentric rocker arm is 45# steel.
Further, the expanding sleeve further comprises a locking bolt and a bolt hole, and when the locking bolt is screwed into the bolt hole, huge holding force is generated between the inner ring of the expanding sleeve and the shaft and between the outer ring of the expanding sleeve and the hub, so that abutting is realized. In the connection of wheel or shaft, the expansion sleeve is characterized by that it utilizes the tightening of bolt to make the expansion sleeve interior ring and shaft and expansion sleeve exterior ring and wheel hub produce large holding force so as to implement a key-free connection device of machine element and shaft, specially applicable to alternating load. The expansion sleeve is used, the shaft, the main belt wheel and the eccentric rocker arm are easy to machine and install, machining does not require high-precision machining tolerance like interference fit, heating, cooling or pressurizing equipment is not needed during installation, only the bolt is required to be screwed down according to required torque, the adjustment is convenient, and the hub can be conveniently adjusted to a required position on the shaft. In addition, the expansion sleeve has long service life and high strength, does not weaken a key groove of a connected piece and does not move relatively depending on friction force, and does not generate friction in work.
Furthermore, the end parts of the eccentric rocker arms are provided with cams which are abutted with the lifting guide rail to be lifted.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the belt wheel and the synchronous belt are matched by circular arc teeth, the shearing force is improved by a circular arc tooth type structure, the noise is low, the transmission efficiency is improved, in addition, the synchronous belt is a force-retention strong synchronous belt of Ganz company, a belt core wire of the synchronous belt is an ultrahigh-grade carbon fiber used as a belt tension wire material, the service life of the synchronous belt is 3-4 times that of a chain, the synchronous belt has high strength and extremely light weight, the elongation is higher, the flexibility is good, the oil resistance and the chemical corrosion resistance are realized, and the surface of a nylon tooth is reduced in abrasion and is free from lubrication;
(2) the driving device has the advantages of circular arc teeth and a synchronous belt with strong force retention, thereby reducing the downtime, avoiding the lubricant, avoiding the cleaning, avoiding the re-tensioning of the transmission system, having no extensibility and creating a clean and quiet environment;
(3) the connection between the main and auxiliary shafts of the driving device and the main belt wheel and the eccentric rocker arm is connected by using the expansion sleeve, and in the connection of the wheel or the shaft, the large holding force is generated between the inner ring and the shaft and between the outer ring and the wheel hub by screwing up the high-strength bolt, so that the key-free connection device of the machine part and the shaft is realized, and the driving device is particularly suitable for alternating load. The expansion sleeve is used, the main shaft, the main belt wheel and the eccentric rocker arm are easy to machine and install, only the bolt is required to be screwed down according to required torque, the adjustment is convenient, and the hub can be conveniently adjusted to a required position on the shaft;
(4) in addition, the expansion sleeve has long service life and high strength, does not weaken a key slot of a connected piece and does not move relatively depending on friction force, and does not generate friction in work;
(5) the material of band pulley and eccentric rocking arm is 45# steel, and not only intensity is higher, is enough to safely support also can directly be convenient for the maintenance with the jacking of lift bracket.
Drawings
FIG. 1 is a perspective view of a drive mechanism in an embodiment;
FIG. 2 is a front view of the driving mechanism in the embodiment;
FIG. 3 is a top view of the drive mechanism in an embodiment;
FIG. 4 is a front view of the right portion of the drive mechanism in the embodiment;
FIG. 5 is a top view of the right portion of the drive mechanism in an embodiment;
FIG. 6 is a side view of the secondary pulley in the embodiment;
FIG. 7 is a plan view of an expansion sleeve in the embodiment;
FIG. 8 is a sectional view of the expansion sleeve in the embodiment;
the reference numbers in the figures indicate: the device comprises a driving motor 31, a motor belt wheel 32, a first main belt wheel 33, a main eccentric rocker arm 34, a second main belt wheel 35, an auxiliary belt wheel 36, an auxiliary eccentric rocker arm 37, a cam 371, an expansion sleeve 38, an expansion sleeve inner ring 381, an expansion sleeve outer ring 382, a locking bolt 383 and a bolt hole 384.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example (b): lifting driving system for Naveco bridolin vehicle body lifter
A lifting driving system for a medium-length vehicle body is shown in figures 1-5 and comprises a driving motor 31, a motor pulley 32, a first main pulley 33, a main eccentric rocker arm 34, a second main pulley 35, an auxiliary pulley 36 and an auxiliary eccentric rocker arm 37, wherein the motor pulley 32 is coaxially connected with a motor shaft of the driving motor 31, the first main pulley 33, the main eccentric rocker arm 34 and the second main pulley 35 are coaxially connected, the auxiliary pulley 36 and the auxiliary eccentric rocker arm 37 are coaxially connected, the motor pulley 32 is synchronously connected with the first main pulley 33, the second main pulley 35 is synchronously connected with the auxiliary pulley 36, and the auxiliary pulley 36 and the second main pulley 35 are identical in circumferential size. The motor starts the motor belt wheel on the shaft of the motor to operate, the first main belt wheel is further driven to operate, the second main belt wheel coaxial with the main shaft drives the auxiliary belt wheel to operate, the eccentric rocker arms on the main shaft and the auxiliary shaft synchronously do circular motion, the lifting bracket is driven to move up and down, when the eccentric rocker arms move to the top end, the lifting bracket is lifted up, the lifting bracket falls down when the eccentric rocker arms move down from the top end, the lifter completes one up-and-down lifting motion period every time the eccentric rocker arms rotate for one circle, and the circular size of the auxiliary belt wheel and the second main belt wheel is 1:1, so that the lifting synchronization performance is ensured. The direction of the arrow in fig. 4 is the direction of the motion trace of the eccentric rocker arm.
The motor belt wheel 32 is connected with the first main belt wheel 33, the second main belt wheel 35 is connected with the auxiliary belt wheel 36 in a circular arc tooth matching mode through a synchronous belt. The synchronous belt is made of carbon fiber with long service life and small abrasion. The circular arc tooth matching connection structure improves shearing force, reduces noise and improves transmission efficiency, the synchronous belt is a high-force-retention synchronous belt (gate. Poly. chain. GT, carbon. TM.) of Gaozi company, a belt core wire of the synchronous belt is super-high-grade carbon fiber used as a belt tension wire material, the service life of the synchronous belt is 3-4 times that of a chain, the synchronous belt has high strength and extremely light weight, the elongation is higher, the flexibility is good, the synchronous belt is oil-resistant and chemical corrosion-resistant, the surface of a nylon tooth is reduced in abrasion and free of lubrication, and the working environment can be from-54 ℃ to 85 ℃. The material of the belt wheel is 45# steel, so that the belt wheel is easy to process and low in cost. The first main belt wheel 33, the main eccentric rocker arm 34 and the second main belt wheel 35, and the auxiliary belt wheel 36 and the auxiliary eccentric rocker arm 37 are coaxially connected by a shaft, and the shaft is arranged on the shaft mounting plate 42 through a shaft seat.
As shown in fig. 6-8, the two ends of the shaft are provided with the expansion sleeves 38, the expansion sleeves 38 comprise an expansion sleeve inner ring 381, an expansion sleeve outer ring 382, a locking bolt and a bolt hole, the expansion sleeve inner ring 381 abuts against the shaft, and the expansion sleeve outer ring 382 abuts against the hubs of the first main pulley 33, the main eccentric rocker arm 34, the second main pulley 35, the auxiliary pulley 36 or the auxiliary eccentric rocker arm 37 respectively. In the connection of wheel or shaft, the expansion sleeve is characterized by that it utilizes the tightening of bolt to make the expansion sleeve interior ring and shaft and expansion sleeve exterior ring and wheel hub produce large holding force so as to implement a key-free connection device of machine element and shaft, specially applicable to alternating load. The expansion sleeve is used, the shaft, the main belt wheel and the eccentric rocker arm are easy to machine and install, machining does not require high-precision machining tolerance like interference fit, heating, cooling or pressurizing equipment is not needed during installation, only the bolt is required to be screwed down according to required torque, the adjustment is convenient, and the hub can be conveniently adjusted to a required position on the shaft. In addition, the expansion sleeve has long service life and high strength, does not weaken a key groove of a connected piece and does not move relatively depending on friction force, and does not generate friction in work. The ends of the main eccentric rocker arm 34 and the sub eccentric rocker arm 37 are each provided with a cam 371, and the cam 371 abuts on a lifting guide rail to be lifted.
Claims (9)
1. A lifting driving system for a medium-length vehicle body comprises a driving motor (31), a plurality of belt wheels and a plurality of eccentric rocker arms, wherein the belt wheels are coaxially connected with the eccentric rocker arms, the belt wheels are synchronously connected with the driving motor (31), and the lifting driving system is characterized in that,
the shaft two ends be equipped with expand set (38), expand set (38) including expand set inner ring (381), expand set outer ring (382), expand set inner ring (381) and axle butt, expand set outer ring (382) and band pulley or eccentric rocking arm's wheel hub butt.
2. The lift drive system for long and medium size vehicle bodies of claim 1, the belt wheels comprise a motor belt wheel (32), a first main belt wheel (33), a second main belt wheel (35) and an auxiliary belt wheel (36), the eccentric rocker arm comprises a main eccentric rocker arm (34) and an auxiliary eccentric rocker arm (37), the motor belt wheel (32) is coaxially connected with a motor shaft of the driving motor (31), the first main belt wheel (33), the main eccentric rocker arm (34) and the second main belt wheel (35) are coaxially connected, the auxiliary belt wheel (36) is coaxially connected with the auxiliary eccentric rocker arm (37), the motor belt wheel (32) is synchronously connected with the first main belt wheel (33), the second main belt wheel (35) and the secondary belt wheel (36) are synchronously connected, and the circumferential sizes of the secondary belt wheel (36) and the second main belt wheel (35) are the same.
3. The lift drive system of claim 2, wherein the first primary pulley (33), the primary eccentric rocker (34) and the second primary pulley (35), and the secondary pulley (36) and the secondary eccentric rocker (37) are coaxially connected by a shaft, and the shaft is mounted on the shaft mounting plate through a shaft seat.
4. The lift drive system of claim 2, wherein the inner expanding sleeve ring (381) abuts against the shaft, and the outer expanding sleeve ring (382) abuts against the hubs of the first primary pulley (33), the primary eccentric rocker (34), the second primary pulley (35), the secondary pulley (36) or the secondary eccentric rocker (37).
5. The lifting drive system for medium-length vehicle bodies as claimed in claim 1, wherein the pulleys are connected in a circular arc tooth fit manner by using a synchronous belt.
6. The lift drive system of claim 5, wherein the timing belt is made of carbon fiber.
7. The lift drive system of claim 1, wherein the pulley and the eccentric rocker arm are made of 45# steel.
8. The lift drive system of claim 1, wherein the expansion sleeve (38) further comprises a locking bolt (383) and a bolt hole (384), and when the locking bolt (383) is screwed into the bolt hole (384), a large holding force is generated between the expansion sleeve inner ring (381) and the shaft and between the expansion sleeve outer ring (382) and the hub to realize the abutment.
9. The lift drive system of claim 1, wherein the eccentric rocker arms each have a cam (371) at an end thereof, the cam (371) abutting against a lift rail to be lifted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880392.XU CN211495880U (en) | 2019-11-04 | 2019-11-04 | Lifting driving system for medium-length vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880392.XU CN211495880U (en) | 2019-11-04 | 2019-11-04 | Lifting driving system for medium-length vehicle body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211495880U true CN211495880U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921880392.XU Active CN211495880U (en) | 2019-11-04 | 2019-11-04 | Lifting driving system for medium-length vehicle body |
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| Country | Link |
|---|---|
| CN (1) | CN211495880U (en) |
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- 2019-11-04 CN CN201921880392.XU patent/CN211495880U/en active Active
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