A three-stage power transmission system for a vertical circulation stereo garage

Abstract

The invention discloses a three-level power transmission system of a vertical circulation stereo garage, the transmission system comprises a main motor, a reduction motor, a secondary transmission shaft, and a tertiary transmission shaft, the secondary transmission shaft is arranged between the reduction motor and the tertiary transmission shaft and is parallel to the power output shaft and the tertiary transmission shaft of the reduction motor; the reduction motor and the secondary transmission shaft, and the secondary transmission shaft and the tertiary transmission shaft are connected by chain transmission; the tertiary transmission shaft is provided with a circulating chain driving wheel. The three-level power transmission system of the invention can effectively improve the stress condition of the transmission shaft, so that the safety and stability of the equipment operation are more reliably guaranteed.

Description

Technical Field

[0001] The invention relates to the field of stereo garages, in particular to a three-level transmission system of a vertical circulation stereo garage. Background Art

[0002] The vertical circulation stereo garage currently available on the market adopts a chain-type two-stage transmission system. Figure 9-12 As shown, each fork wheel 25 of the vertical circulation stereo garage is connected to a lifting chain 21; two lifting chains 21 are respectively installed at the left and right ends of the frame 20; a plurality of vehicle-carrying chain plates 22 are respectively arranged on the two lifting chains 21, and a vehicle-carrying hanger mounting cross bar 23 is arranged between the vehicle-carrying chain plates 22 at the same height, and a vehicle-carrying hanger 24 is installed on the vehicle-carrying hanger mounting cross bar 23. The reduction motor 1 is connected to the sprocket 26 through the transmission chain 27, and the fork wheel 25 and the sprocket 26 are installed on the rotating shaft 28. The reduction motor 1 directly drives the fork wheel 25 to drive the lifting chain 21 through the sprocket 26. Since the speed of the output shaft of the reduction motor is very different from the speed of the fork wheel 25 to shift the lifting chain 21, the number of teeth of the power output sprocket on the output shaft of the reduction motor 1 and the sprocket 26 are relatively large. If the wrap angle of the power output sprocket on the output shaft of the reduction motor 1 is too small, the load on the sprocket teeth is very large, and the motor output shaft must also bear a larger load, which accelerates wear, makes a lot of noise, and requires high maintenance and servicing costs. In addition, in the power transmission system of the prior art, since the rotation speed of the output shaft of the reduction motor and the speed of the fork wheel 25 shifting the lifting chain 21 cannot be too different, the diameter of the fork wheel 25 is generally around 700mm, and it can only be a small fork wheel with 3-4 teeth. Due to the small number of forks, the fork wheel 25 is not tightly combined with the lifting chain 21, resulting in stress concentration and large wear of the fork wheel, resulting in poor transmission stability and unstable operation of the existing vertical circulation stereo garage. Once the chain or fork wheel is not tightly combined or broken, it will directly cause the vehicle hanger in the vertical circulation stereo garage to fall accidentally, posing a great safety hazard.

[0003] The power of the secondary transmission system is transmitted from the primary transmission, i.e. the motor to the reducer, and then from the small sprocket of the reducer output shaft to the secondary terminal transmission through the chain in one step. The torque transmitted in the middle is suddenly amplified, which puts higher requirements on the safety design of the drive spindle and the safety and reliability of the chain. If the manufacturing enterprise improperly designs or selects the material of the spindle structure, the equipment is very likely to cause the drive spindle to twist or bend due to insufficient torsion or bending strength during operation. This situation is not uncommon in the market. On the other hand, once the drive spindle is twisted or bent, it will cause transmission failure and there is a risk of chain breaking. Although the use of the fork wheel can reduce the total transmission ratio and thus relatively reduce the purchase cost of the reducer, the extrusion stress of the contact surface between the fork wheel tooth groove and the lifting large chain guide wheel will be greatly increased. Taking the 16-car model as an example, under the maximum eccentric load (six parking spaces on one side), according to the calculation results of the "Hertz formula", the maximum extrusion stress of the tooth groove contact surface exceeds 1000MPa. In the industry, due to the difficulty and cost of manufacturing, the material of the fork wheel is generally selected as 40Cr, and the tooth groove surface is subjected to high-frequency quenching treatment. However, application results show that the contact surface of the fork wheel is generally damaged and fails due to insufficient extrusion strength and wear resistance. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a three-stage transmission system with low wear, low noise and easy maintenance.

[0005] The technical solution adopted by the present invention is as follows.

[0006] A three-stage power transmission system for a vertical circulation stereoscopic car park, the transmission system comprises a main motor, a reduction motor, a secondary transmission shaft and a tertiary transmission shaft, the secondary transmission shaft is arranged between the reduction motor and the tertiary transmission shaft and is parallel to the power output shaft and the tertiary transmission shaft of the reduction motor; the reduction motor and the secondary transmission shaft, and the secondary transmission shaft and the tertiary transmission shaft are all connected by chain transmission; a circulating chain driving wheel is arranged on the tertiary transmission shaft; the main motor is connected to the reduction motor.

[0007] As an optimal technical solution, the transmission system includes a reduction motor, a primary transmission sprocket, a primary ring-shaped transmission chain, a secondary transmission shaft, two secondary transmission sprockets, two secondary ring-shaped transmission chains, a tertiary transmission shaft, two and three-stage transmission sprockets, and two circular chain drive wheels.

[0008] A power output wheel is arranged on the power output shaft of the reduction motor; a primary transmission sprocket is arranged on the secondary transmission shaft and is in the same plane as the power output wheel; the power output wheel is connected to the primary transmission sprocket through a primary ring-shaped transmission chain.

[0009] A secondary transmission sprocket is provided at each end of the secondary transmission shaft; a tertiary transmission sprocket is provided at each plane position where the two secondary transmission sprockets on the tertiary transmission shaft are located; each secondary transmission sprocket is connected to the nearest tertiary transmission sprocket through a secondary annular transmission chain.

[0010] Two circulating chain driving wheels are arranged on the third-stage transmission shaft.

[0011] As an optimal technical solution, the transmission system includes a reduction motor, two primary transmission sprockets, two primary ring-shaped transmission chains, a secondary transmission shaft, two secondary transmission sprockets, two secondary ring-shaped transmission chains, a tertiary transmission shaft, two and three-stage transmission sprockets, and two circular chain drive wheels.

[0012] Two power output wheels are arranged on the power output shaft of the reduction motor; a primary transmission sprocket is arranged at each plane position where the two power output wheels are located on the secondary transmission shaft, and each power output wheel is connected to the primary transmission sprocket closest thereto through a primary annular transmission chain.

[0013] A secondary transmission sprocket is provided at each end of the secondary transmission shaft; a tertiary transmission sprocket is provided at each plane position where the two secondary transmission sprockets on the tertiary transmission shaft are located; each secondary transmission sprocket is connected to the nearest tertiary transmission sprocket through a secondary annular transmission chain.

[0014] Two circulating chain driving wheels are arranged on the third-stage transmission shaft.

[0015] As a preferred technical solution, the diameter of the endless chain driving wheel is larger than the diameter of the three-stage transmission sprocket.

[0016] As a preferred technical solution, the diameter of the endless chain driving wheel is not less than 1400 mm.

[0017] As a preferred technical solution, the radial outer peripheral surface of the endless chain driving wheel is provided with no less than 8 grooves for engaging with the endless large chain links.

[0018] As a preferred technical solution, the two circulating chain drive wheels are symmetrically arranged.

[0019] As a preferred technical solution, two-loop chain drive wheels are arranged at both ends of the three-stage transmission shaft.

[0020] As a preferred technical solution, the diameter of the tertiary transmission sprocket is larger than that of the secondary transmission sprocket; the diameter of the secondary transmission sprocket is smaller than that of the primary transmission sprocket; and the diameter of the power output wheel is smaller than that of the primary transmission sprocket.

[0021] As a preferred technical solution, a secondary transmission sprocket is provided at each end of the secondary transmission shaft.

[0022] As a preferred technical solution, the three-dimensional parking garage is equipped with a reduction motor, a secondary transmission shaft, and a tertiary transmission shaft from top to bottom.

[0023] As a preferred technical solution, the distance between the secondary transmission shaft and the tertiary transmission shaft is greater than the distance between the power output shaft of the reduction motor and the secondary transmission shaft.

[0024] As an optimal technical solution, a secondary transmission shaft bearing seat is installed at the left and right ends of the three-dimensional parking garage; the secondary transmission shaft includes a secondary transmission shaft body, two first rotating shafts, and two first couplings whose central axes are on the same horizontal straight line. A first rotating shaft is inserted into each secondary transmission shaft bearing seat, and the two first rotating shafts are connected to the secondary transmission shaft body through the first couplings.

[0025] As an optimal technical solution, a three-stage transmission shaft bearing seat is installed at the left and right ends of the three-dimensional parking garage; the three-stage transmission shaft includes a three-stage transmission shaft body, two second rotating shafts, and two second couplings whose central axes are on the same horizontal straight line. A second rotating shaft is inserted into each three-stage transmission shaft bearing seat, and the two second rotating shafts are connected to the three-stage transmission shaft body through the second couplings.

[0026] The beneficial effects of the present invention are as follows: the three-stage reduction of the reduction motor, the secondary transmission shaft, and the tertiary transmission shaft solves the problem in the prior art that the wrap angle of the power output sprocket on the output shaft of the reduction motor is too small and the load on the chain teeth is too large, reduces the load on the output shaft of the reduction motor, reduces wear, reduces noise, and reduces maintenance and servicing costs. The three-stage speed regulation ensures the stability of the vehicle carrier when starting and stopping. The innovative application of the "three-stage four-chain" transmission system, especially the two primary annular transmission chains, can effectively prevent the transmission failure problem that may be caused by a single chain, and effectively improve the stress conditions of the transmission shaft. The three-stage speed regulation structure of the present invention is adopted, and a secondary transmission shaft is added between the reduction motor and the three-stage transmission shaft, which increases the spacing between the three-stage transmission shafts of the reduction motor and reduces the speed ratio value of each stage of transmission. In this way, the diameter of the circulating chain drive wheel can be larger than the fork wheel of the prior art, and the degree of tightness of the combination with the lifting chain is high, so that the safety and stability of the equipment operation are more reliably guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a preferred embodiment of a three-stage power transmission system of a vertical circulation stereo garage of the present invention.

[0028] Figure 2 yes Figure 1 A partial enlarged view of part A.

[0029] Figure 3 yes Figure 1 A partial enlarged view of part B.

[0030] Figure 4yes Figure 1 A partial enlarged view of part C.

[0031] Figure 5 It is a structural schematic diagram of a preferred embodiment of a three-stage power transmission system of a vertical circulation stereo garage of the present invention.

[0032] Figure 6 yes Figure 5 A partial enlarged view of part D.

[0033] Figure 7 yes Figure 1 The schematic diagram shown is when the power transmission system is installed on the frame of the stereo garage.

[0034] Figure 8 yes Figure 7 A partial enlarged view of part E.

[0035] Fig. 9 It is a structural schematic diagram of a vertical circulation stereo garage in the prior art.

[0036] Fig.10 yes Fig. 9 A partial enlarged view of part F.

[0037] Fig.11 yes Fig. 9 A partial enlarged view of part G.

[0038] Fig.12 yes Fig.11 A partial enlarged view of part H.

[0039] Fig.13 It is a schematic diagram of the three-stage power transmission system of the vertical circulation stereo garage of the present invention.

[0040] Among them: reduction motor-1; secondary transmission shaft-2; tertiary transmission shaft-3; circulating chain drive wheel-4; primary transmission sprocket-5; primary annular transmission chain-6; secondary transmission sprocket-7; secondary annular transmission chain-8; two and three-stage transmission sprockets-9; power output wheel-10; power output shaft-11; secondary transmission shaft bearing seat-12; secondary transmission shaft body-13; first rotating shaft-14; first coupling-15; tertiary transmission shaft bearing seat-16; tertiary transmission shaft body-17; second rotating shaft-18; second coupling-19; frame-20; lifting chain-21; vehicle-carrying chain plate-22; vehicle-carrying hanger mounting cross bar-23; vehicle-carrying hanger-24. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] Example 1. Figure 1-4As shown in 7-8, a three-stage power transmission system of a vertical circulation multi-story parking garage is characterized in that: the transmission system includes a main motor 101, a reduction motor 1, a secondary transmission shaft 2, and a tertiary transmission shaft 3, the secondary transmission shaft 2 is arranged between the reduction motor 1 and the tertiary transmission shaft 3 and is parallel to the power output shaft 11 and the tertiary transmission shaft 3 of the reduction motor 1; the reduction motor 1 and the secondary transmission shaft 2, and the secondary transmission shaft 2 and the tertiary transmission shaft 3 are all connected through chain transmission; a circulating chain driving wheel 4 is provided on the tertiary transmission shaft 3; the main motor 101 is connected to the reduction motor 1.

[0043] The transmission system comprises a reduction motor 1, two primary transmission sprockets 5, two primary ring-shaped transmission chains 6, a secondary transmission shaft 2, two secondary transmission sprockets 7, two secondary ring-shaped transmission chains 8, a tertiary transmission shaft 3, two tertiary transmission sprockets 9, and two ring-shaped chain drive wheels 4;

[0044] The secondary transmission shaft 2, the tertiary transmission shaft 3, and the power output shaft 11 of the reduction motor 1 are parallel to each other, and the secondary transmission shaft 2 is arranged between the tertiary transmission shaft 3 and the power output shaft 11 of the reduction motor 1;

[0045] Two power output wheels 10 are arranged on the power output shaft 11 of the reduction motor 1; a primary transmission sprocket 5 is arranged on each plane position where the two power output wheels 10 are located on the secondary transmission shaft 2, and each power output wheel 10 is connected to the primary transmission sprocket 5 closest thereto through a primary annular transmission chain 6;

[0046] A secondary transmission sprocket 7 is provided at each end of the secondary transmission shaft 2; a tertiary transmission sprocket 9 is provided at each plane position where the two secondary transmission sprockets 7 on the tertiary transmission shaft 3 are located; each secondary transmission sprocket 7 is connected to the tertiary transmission sprocket 9 closest thereto through a secondary annular transmission chain 8;

[0047] Two circulating chain drive wheels 4 are arranged on the three-stage transmission shaft 3 .

[0048] The diameter of the endless chain driving wheel 4 is greater than the diameter of the three-stage transmission sprocket 9 .

[0049] The diameter of the endless chain driving wheel 4 is not less than 1400 mm.

[0050] The radial outer peripheral surface of the endless chain driving wheel 4 is provided with 10 grooves for engaging with the endless large chain links.

[0051] The two circulating chain drive wheels 4 are symmetrically arranged.

[0052] Two endless chain drive wheels 4 are arranged at both ends of the three-stage transmission shaft 3 .

[0053] The diameter of the tertiary transmission sprocket 9 is larger than the diameter of the secondary transmission sprocket 7 ; the diameter of the secondary transmission sprocket 7 is smaller than the diameter of the primary transmission sprocket 5 ; the diameter of the power output wheel 10 is smaller than the diameter of the primary transmission sprocket 5 .

[0054] A secondary transmission sprocket 7 is provided at each end of the secondary transmission shaft 2 .

[0055] The three-dimensional car park is provided with a reduction motor 1, a secondary transmission shaft 2, and a tertiary transmission shaft 3 from top to bottom.

[0056] The distance between the secondary transmission shaft 2 and the tertiary transmission shaft 3 is greater than the distance between the power output shaft 11 of the reduction motor 1 and the secondary transmission shaft 2 .

[0057] A secondary transmission shaft bearing seat 12 is installed at the left and right ends of the three-dimensional parking garage; the secondary transmission shaft 2 includes a secondary transmission shaft body 13, two first rotating shafts 14, and two first couplings 15 whose central axes are on the same horizontal straight line. A first rotating shaft 14 is inserted into each secondary transmission shaft bearing seat 12, and the two first rotating shafts 14 are connected to the secondary transmission shaft body 13 through the first couplings 15.

[0058] A three-stage transmission shaft bearing seat 16 is installed at the left and right ends of the three-dimensional parking garage; the three-stage transmission shaft 3 includes a three-stage transmission shaft body 17, two second rotating shafts 18, and two second couplings 19 whose central axes are on the same horizontal straight line. A second rotating shaft 18 is inserted into each three-stage transmission shaft bearing seat 16, and the two second rotating shafts 18 are connected to the three-stage transmission shaft body 17 through the second couplings 19.

[0059] Example 2. Figure 5-6 As shown, the difference between this embodiment and embodiment 1 is that the transmission system includes a reduction motor 1, a primary transmission sprocket 5, a primary ring-shaped transmission chain 6, a secondary transmission shaft 2, two secondary transmission sprockets 7, two secondary ring-shaped transmission chains 8, a tertiary transmission shaft 3, two tertiary transmission sprockets 9, and two circular chain drive wheels 4.

[0060] The secondary transmission shaft 2 , the tertiary transmission shaft 3 , and the power output shaft 11 of the reduction motor 1 are parallel to each other, and the secondary transmission shaft 2 is arranged between the tertiary transmission shaft 3 and the power output shaft 11 of the reduction motor 1 .

[0061] A power output wheel 10 is provided on the power output shaft 11 of the reduction motor 1; the primary transmission sprocket 5 is arranged on the secondary transmission shaft 2 and is in the same plane as the power output wheel 10; the power output wheel 10 is connected to the primary transmission sprocket 5 through a primary annular transmission chain 6.

[0062] A secondary transmission sprocket 7 is provided at each end of the secondary transmission shaft 2; a tertiary transmission sprocket 9 is provided at each plane position where the two secondary transmission sprockets 7 on the tertiary transmission shaft 3 are located; each secondary transmission sprocket 7 is connected to the tertiary transmission sprocket 9 closest thereto through a secondary annular transmission chain 8.

[0063] Two circulating chain drive wheels 4 are arranged on the three-stage transmission shaft 3 .

[0064] like Fig.13 As shown, "three-stage": the motor to the reducer is the first-stage transmission, the transmission from the reducer to the second-stage transmission shaft through the sprocket chain is the second-stage transmission, and the transmission from the second-stage transmission shaft to the third-stage transmission shaft through the sprocket chain is the third-stage transmission. "Four-chain": the chain from the reducer to the second-stage transmission shaft is a double-row sleeve roller chain, and there are two chains from the second-stage transmission shaft to the third-stage transmission shaft, which are arranged axially at the second and third ends of the transmission.

[0065] The advantages of the three-stage transmission of this embodiment are: ① It solves the problem of transmission failure caused by insufficient torsion or bending strength of the power output shaft of the reduction motor (i.e., the primary transmission shaft); ② It avoids the risk of chain breakage of the primary ring-shaped transmission chain 6; ③ It overcomes the common phenomenon in the prior art that the contact surface of the fork wheel groove is damaged and fails due to insufficient extrusion strength and wear resistance; ④ The overall flexibility of the transmission system is good.

[0066] The "three-level four-chain" transmission system realizes multi-level flexible transmission of torque and improves the synchronization and symmetry of power output. The application of this system can effectively solve the multi-level flexible transmission of torque, and reduce the impact on the force and stability of the transmission shaft and the main frame structure of the equipment. In addition, for the three-level transmission shaft, the power output has excellent synchronization and symmetry, and the safety of the transmission shaft and the stable operation of the whole machine are guaranteed at the same time.

[0067] The above-listed embodiments are only for understanding the present invention and are not intended to limit the technical solutions described in the present invention. A person skilled in the art may make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications shall be included in the protection scope of the claims of the present invention. Anything not described in detail in the present invention is a known technology to those skilled in the art.

Claims

1. A three-stage power transmission system for a vertical circulation stereo garage, characterized in that: The transmission system comprises a main motor (101), a reduction motor (1), a secondary transmission shaft (2), and a tertiary transmission shaft (3); the secondary transmission shaft (2) is arranged between the reduction motor (1) and the tertiary transmission shaft (3) and is parallel to the power output shaft (11) and the tertiary transmission shaft (3) of the reduction motor (1); the reduction motor (1) and the secondary transmission shaft (2), and the secondary transmission shaft (2) and the tertiary transmission shaft (3) are connected via chain transmission; a circulating chain driving wheel (4) is provided on the tertiary transmission shaft (3); the main motor (101) is connected to the reduction motor (1); The transmission system comprises a reduction motor (1), two primary transmission sprockets (5), two primary ring-shaped transmission chains (6), a secondary transmission shaft (2), two secondary transmission sprockets (7), two secondary ring-shaped transmission chains (8), a tertiary transmission shaft (3), two tertiary transmission sprockets (9), and two ring-shaped chain drive wheels (4); Two power output wheels (10) are provided on the power output shaft (11) of the reduction motor (1); a primary transmission sprocket (5) is provided on each of the plane positions where the two power output wheels (10) are located on the secondary transmission shaft (2); each power output wheel (10) is connected to the primary transmission sprocket (5) closest thereto via a primary ring-shaped transmission chain (6); A secondary transmission sprocket (7) is provided at each end of the secondary transmission shaft (2); a tertiary transmission sprocket (9) is provided at each plane position where the two secondary transmission sprockets (7) are located on the tertiary transmission shaft (3); each secondary transmission sprocket (7) is connected to the tertiary transmission sprocket (9) closest thereto via a secondary ring-shaped transmission chain (8); Two circulating chain drive wheels (4) are provided on the third-stage transmission shaft (3); The radial outer peripheral surface of the circulating chain driving wheel (4) is provided with no less than 8 grooves for engaging with the circulating large chain links; The two circulating chain drive wheels (4) are symmetrically arranged.

2. The three-stage power transmission system of a vertical circulation stereo garage as claimed in claim 1, characterized in that: The diameter of the endless chain driving wheel (4) is greater than the diameter of the three-stage transmission sprocket wheel (9).

3. The three-stage power transmission system of a vertical circulation stereo garage as claimed in claim 1, characterized in that: The diameter of the endless chain driving wheel (4) is not less than 1400 cm.

4. The three-stage power transmission system of a vertical circulation stereo garage as claimed in claim 1, characterized in that: Two-loop chain drive wheels (4) are arranged at both ends of the three-stage transmission shaft (3).

5. The three-stage power transmission system of a vertical circulation stereo garage as claimed in claim 1, characterized in that: The diameter of the tertiary transmission sprocket (9) is larger than the diameter of the secondary transmission sprocket (7); the diameter of the secondary transmission sprocket (7) is smaller than the diameter of the primary transmission sprocket (5); and the diameter of the power output wheel (10) is smaller than the diameter of the primary transmission sprocket (5).

6. The three-stage power transmission system of a vertical circulation stereo garage as claimed in claim 1, characterized in that: A secondary transmission sprocket (7) is respectively provided at both ends of the secondary transmission shaft (2).

7. The three-stage power transmission system of a vertical circulation stereo garage as claimed in claim 1, characterized in that: The three-dimensional car park is provided with a reduction motor (1), a secondary transmission shaft (2), and a tertiary transmission shaft (3) from top to bottom.

8. The three-stage power transmission system of a vertical circulation stereo garage as claimed in claim 1, characterized in that: The distance between the secondary transmission shaft (2) and the tertiary transmission shaft (3) is greater than the distance between the power output shaft (11) of the reduction motor (1) and the secondary transmission shaft (2).

9. The three-stage power transmission system of a vertical circulation stereo garage as claimed in claim 1, characterized in that: A secondary transmission shaft bearing seat (12) is installed at each of the left and right ends of the three-dimensional car park; the secondary transmission shaft (2) comprises a secondary transmission shaft body (13), two first rotating shafts (14), and two first couplings (15) whose central axes are on the same horizontal straight line; a first rotating shaft (14) is inserted into each secondary transmission shaft bearing seat (12); and the two first rotating shafts (14) are connected to the secondary transmission shaft body (13) via the first couplings (15).

10. The three-stage power transmission system of a vertical circulation stereo garage as claimed in claim 1, characterized in that: A three-stage transmission shaft bearing seat (16) is installed at each of the left and right ends of the three-dimensional parking garage; the three-stage transmission shaft (3) comprises a three-stage transmission shaft body (17), two second rotating shafts (18), and two second couplings (19) whose central axes are on the same horizontal straight line; a second rotating shaft (18) is inserted into each of the three-stage transmission shaft bearing seats (16); and the two second rotating shafts (18) are connected to the three-stage transmission shaft body (17) via the second couplings (19).

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