CN210289287U

CN210289287U - Circulating transmission large chain wheel of vertical circulating stereo garage

Info

Publication number: CN210289287U
Application number: CN201920333484.XU
Authority: CN
Inventors: 陈金水
Original assignee: Shandong Jiu Road Parking Equipment Co ltd
Current assignee: Shandong Jiu Road Parking Equipment Co ltd
Priority date: 2019-03-16
Filing date: 2019-03-16
Publication date: 2020-04-10
Anticipated expiration: 2029-03-16

Abstract

The utility model discloses a perpendicular circulation stereo garage's big sprocket of cyclic transmission, be equipped with the promotion chain on the perpendicular circulation stereo garage, promote the annular structure that the chain is formed for passing through the articulated axle of chain link head and the tail in proper order by a plurality of chain links, the big sprocket of cyclic transmission includes the big sprocket body of cyclic transmission, its characterized in that: the center of the circular transmission big chain wheel body is axially provided with a shaft hole; at least 8 chain driving grooves meshed with chain link hinge shafts of the lifting chains are arranged on the radial outer peripheral surface of the circular transmission large chain wheel body along the central axis of the shaft hole in an annular array mode. The utility model discloses the drive recess quantity of the big sprocket of cyclic transmission compares the declutch shift wheel and increases substantially, the big sprocket of cyclic transmission with promote the full length contact that has realized the meshing face between the chain, obtained high meshing transmission performance, high abrasion resistance and high extrusion strength.

Description

Circulating transmission large chain wheel of vertical circulating stereo garage

Technical Field

The utility model relates to a garage equipment technical field especially relates to the circulation transmission sprocket of the promotion chain of the perpendicular circulation of drive.

Background

The problem of difficulty in urban parking generally exists at present, and the problem is mainly reflected in the contradiction between parking demand and insufficient parking space, namely the contradiction between parking space expansion and urban land shortage, so that the mechanical garage is produced at the discretion. The mechanical stereo garage is an effective means for solving the problems in the prior art, in particular to a vertical circulating stereo garage, which has the characteristics of small occupied area and flexible arrangement and can be installed beside a living area or a building by inserting pins. As shown in fig. 8-11, two lifting chains 1 of the stereo garage in the prior art are respectively installed at the left and right ends of the frame body 7; the two lifting chains 1 are respectively connected with a shifting fork wheel 71; the shifting fork wheel 71 is arranged on the driving shaft 72; the drive wheel 73 on the drive shaft 72 is connected to a reduction motor 74 via a drive chain 75. A plurality of vehicle carrying chain plates 76 are respectively arranged on the two lifting chains 1, a vehicle carrying hanger mounting cross rod 77 is arranged between the vehicle carrying chain plates 76 at the same height, and a vehicle carrying hanger 78 is arranged on the vehicle carrying hanger mounting cross rod 77.

In the prior art, the large-diameter shifting fork wheel is easy to deform when bearing large stress, so that the diameter of the shifting fork wheel of the vertical circulation stereo garage is about 700mm generally, and only 3-4 shifting forks can be arranged.

The 3-4 tooth shifting fork wheel in the prior art. Because the quantity of shift forks is few, the shift forks and the lifting chain 2 are not combined tightly, the polygon effect of a chain with a large pitch of more than 400mm can not be solved, and the phenomena of 'time loosening and time loosening' and 'chain jumping' exist all the time in the operation process. Want to solve this kind of problem, only increase substantially the chain rate of tension, can produce certain effect, but the consequence of doing so has increased frictional resistance undoubtedly, and power consumption also follows the promotion, and the needs frequently advance, has also brought the increase of equipment maintenance cost. No matter the lifting chain and the shifting fork wheel are arranged at the upper end or the bottom in the meshing process, a pair of couple can be generated on the lifting chain under the action of the self-weight load and the rated load Q of the vehicle carrying tray connected with the triangular plate of the lifting chain. Under the action of the couple, the chain plate and the guide wheel entering the meshing neutral gear area can rotate to separate from the normal motion track, and the result is that a light person jumps, a heavy person blocks and a heavy person clogs.

The vertical circulation stereo garage is high, the lifting chain 1 generally adopts a large chain link chain which is convenient to connect with the vehicle carrying chain plates 76, the vehicle carrying chain plates 76 on the lifting chain are connected with the vehicle carrying hangers 78, the load of the vehicle carrying hangers 78 is large, the vehicle carrying hangers 78 can be unfolded under the large load, the combination of 3-4-tooth shifting fork wheels and the large chain link chain is poor, when the distance between the middle points of the chain links on the large chain link chain and the ground is the lowest, the chain links can not be parallel to the ground, the vertical circulation stereo garage runs for a long time, the stress condition is poor, the abrasion of the shifting fork wheels 71 can be increased, and the shifting forks are abraded to be scrapped after being used in. If stress concentration is generated, the shifting fork wheel 71 is abraded greatly, the existing vertical circulation stereo garage is poor in transmission stability and not stable in operation, and once the lifting chain 1 and the shifting fork wheel 71 are combined untight or broken, the automobile carrying hanger in the vertical circulation stereo garage is directly caused to accidentally fall, so that great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a perpendicular circulation stereo garage's big sprocket of circulation transmission to prior art not enough, its simple structure, wearing and tearing are low.

The present utility model has the following technical proposal.

The utility model provides a big sprocket of circulation transmission of perpendicular circulation stereo garage, be equipped with the promotion chain on the perpendicular circulation stereo garage, promote the annular structure that the chain forms for passing through the chain link articulated shaft end to end in proper order by a plurality of chain links, the big sprocket of circulation transmission includes the big sprocket body of circulation transmission, its characterized in that: the center of the circular transmission big chain wheel body is axially provided with a shaft hole; at least 8 chain driving grooves meshed with chain link hinge shafts of the lifting chains are annularly arrayed on the radial outer peripheral surface of the large circulating transmission chain wheel body along the central axis of the shaft hole; the diameter of the circular transmission large chain wheel body is not less than 1400 mm.

As a preferred technical scheme, a plurality of lightening holes are axially arranged on the circular transmission large chain wheel body, and the centroid of each lightening hole is annularly arrayed along the centroid of the circular transmission large chain wheel body.

As a preferred technical scheme, the ratio of the bore diameter of the lightening holes to the diameter of the large circulating transmission chain wheel body is 1: 4-1: 7.

as the preferred technical scheme, an inner sleeve is arranged on a shaft hole of the large circulating transmission chain wheel body, and the axial thickness of the inner sleeve is greater than that of the large circulating transmission chain wheel body.

As a preferred technical scheme, the inner sleeve is provided with a key groove.

According to a preferable technical scheme, a key groove is formed in the shaft hole.

Preferably, the thickness of the part, close to the shaft hole, of the large circulating transmission chain wheel body is larger than that of the rest part of the large circulating transmission chain wheel body.

As an optimal technical scheme, the section, close to the shaft hole end, of the chain driving groove, perpendicular to the central axis direction of the shaft hole is semicircular, the section, far away from the shaft hole end, of the chain driving groove, perpendicular to the central axis direction of the shaft hole is trapezoidal, and the length of the trapezoidal edge far away from the shaft hole end is larger than that of the trapezoidal edge close to the shaft hole end.

As the preferred technical scheme, the circular transmission big chain wheel is a steel circular transmission big chain wheel.

As a preferred technical scheme, each chain link comprises two chain plates which are arranged in parallel, the same ends of the two chain plates are connected with a chain link hinge shaft, and the two chain plates are perpendicular to the central axis of the chain link hinge shaft.

As the preferred technical scheme, a roller is coaxially arranged on each chain link articulated shaft; when the circular transmission large chain wheel rotates, the chain driving grooves on the radial outer peripheral surface of the circular transmission large chain wheel body can be meshed with the radial outer peripheral surfaces of the rollers.

The utility model has the advantages that: with prior art's shift fork wheel drive promotion chain different, the utility model discloses a big sprocket drive of cyclic transmission promotes the chain, and the drive recess quantity of the big sprocket of cyclic transmission compares the shift fork wheel and increases substantially, has realized the full length contact of meshing face between the big sprocket of cyclic transmission and the promotion chain, has obtained high meshing transmission performance, high abrasion resistance and high extrusion strength. Compared with the shifting fork wheel in the prior art, the diameter of the circular transmission large chain wheel is greatly improved, the part, close to the shaft hole, of the circular transmission large chain wheel body is thickened and is provided with lightening holes, and the running efficiency of the circular transmission large chain wheel can be locally and effectively improved.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the circular transmission large sprocket of the present invention.

Fig. 2 is a schematic structural view of a preferred embodiment of the circular transmission large sprocket of the present invention.

FIG. 3 is a cross-sectional view of the endless transmission large sprocket shown in FIG. 2 taken along A-A'.

Fig. 4 is a schematic diagram of the engagement of the circular transmission big chain wheel and the lifting chain.

Fig. 5 is a partially enlarged view of a portion B of fig. 4.

Fig. 6 is a partially enlarged view of a portion C of fig. 5.

Fig. 7 is a partially enlarged view of a portion D of fig. 5.

Fig. 8 is a schematic structural diagram of a vertical circulation stereo garage in the prior art.

Fig. 9 is a partially enlarged view of a portion E of fig. 8.

Fig. 10 is a partially enlarged view of a portion F of fig. 8.

Fig. 11 is a partially enlarged view of a portion G of fig. 10.

Wherein: lifting the chain-1;

chain link-2; a chain plate-21;

a chain link articulated shaft-3;

a large chain wheel-4 is circularly transmitted; a large sprocket body-41 for circular transmission; a shaft hole-42; lightening holes-43; an inner sleeve-44;

chain driving groove-5;

a roller-6;

a frame body-7; a fork wheel-71; a drive shaft-72; a drive wheel-73; a reduction motor-74; a drive chain-75; a vehicle carrying chain plate-76; a vehicle-carrying hanger mounting cross bar-77; a vehicle carrying hanger-78.

Detailed Description

The invention is further illustrated by the following figures and examples.

Example 1. As shown in fig. 1, 4-7, a big sprocket of circulation transmission of perpendicular circulation stereo garage, be equipped with promotion chain 1 on the perpendicular circulation stereo garage, promote chain 1 and be the cyclic annular structure that forms through chain link articulated shaft 3 end to end in proper order by a plurality of chain links 2, big sprocket of circulation transmission 4 is including the big sprocket body 41 of circulation transmission, its characterized in that: a shaft hole 42 is axially arranged on the centroid of the circular transmission large chain wheel body 41; the radial outer peripheral surface of the circular transmission large chain wheel body 41 is provided with 10 chain driving grooves 5 meshed with the chain link articulated shafts 3 of the lifting chains 1 along the central axis of the shaft hole 42 in an annular array; the diameter of the circular transmission large chain wheel body 41 is not less than 1400 mm. The design of the large circulating chain wheel is improved by referring to the standard GB8350-2003 transport chain, accessories and chain wheels, because products applied to the market are not designed to be improved according to different use conditions, and the problem of poor meshing exists. In the international standard for transmission short-pitch precision roller chains and sprockets in ISO 606-1994, no specific sprocket tooth form is specified, but only the maximum tooth groove form and the minimum tooth groove form of the sprocket are specified. However, in designing an endless large sprocket, in addition to ensuring that the chain is smoothly engaged into and out of the sprocket and having a good machining process, the inventors have considered the following principles: the sprocket teeth must be able to absorb and transmit chain tension, and the sprocket is further required to be able to achieve smooth and continuous operation; the sprocket teeth must reasonably accommodate chain elongation and wear at the face and root circles of the sprocket teeth; the sprocket teeth must be compatible with the operating conditions of use. Such as the running speed of the chain, whether foreign objects fall into the meshing part of the chain and the chain wheel, etc. The circular large chain wheel is optimally designed, and key performance parameters such as tooth space center separation amount, meshing pressure angle, chain wheel tooth surface arc radius, root circle diameter and the like are optimized through multiple installation experiments. The full-length contact of the meshing surface between the lifting chain guide wheel and the lifting chain guide wheel is realized, and high meshing transmission performance is obtained. The tooth surface of the gear has high abrasion resistance and high extrusion strength by strictly controlling the heat treatment process, and the gear replaces a four-tooth shifting fork wheel commonly adopted in the existing market, so that the chain wheel works more stably and reliably, and the service efficiency of equipment is further improved. And a computer digital collaborative design technology is adopted, and the accurate simulation of the lifting of the large chain running track is realized through iterative calculation. For example, when the center distance of the circular track of the large lifting chain is Ayh =1472.41mm, and the chain deflects 18 ° to a single side (left or right) at the lowest triangle, the lifting chain is tensioned, and then the maximum slack amount in the chain running process is: Δ max = Kmax-Kmin =455.00-454.74=0.26mm, which is completely negligible compared to the order of magnitude of the total length of the entire chain, and the results of the tests are also well documented: the phenomena of 'polygon effect' and 'chain jumping' of the lifting chain do not occur any more, and the problems are thoroughly solved.

A plurality of lightening holes 43 are axially arranged on the circular transmission large chain wheel body 41, and the centroid of each lightening hole 43 is annularly arrayed along the centroid of the circular transmission large chain wheel body 41.

The ratio of the aperture of the lightening hole 43 to the diameter of the large circulating transmission chain wheel body 41 is 1: 4-1: 7.

the shaft hole 42 is provided with a key slot 45.

The thickness of the part of the endless transmission large sprocket body 41 near the shaft hole 42 is larger than the thickness of the rest thereof.

The section of the chain driving groove 5 close to the axle hole 42 end and perpendicular to the axle wire direction of the axle hole 42 is semicircular, the section of the chain driving groove 5 far away from the axle hole 42 end and perpendicular to the axle wire direction of the axle hole 42 is trapezoidal, and the length of the trapezoidal edge far away from the axle hole 42 end is greater than that of the edge close to the axle hole 42 end.

The circular transmission big chain wheel 4 is a steel circular transmission big chain wheel 4.

Each chain link 2 comprises two chain links 21 arranged in parallel, the same ends of the two chain links 21 are connected with a chain link hinge shaft 3, and the two chain links 21 are perpendicular to the central axis of the chain link hinge shaft 3.

A roller 6 is coaxially arranged on each chain link articulated shaft 3; the chain driving grooves 5 on the radially outer peripheral surface of the endless transmission large sprocket body 41 can engage with the radially outer peripheral surface of each roller 6 when the endless transmission large sprocket rotates.

Example 2. As shown in fig. 2 to 3, the present embodiment is different from embodiment 1 in that: an inner sleeve 44 is arranged on the shaft hole 42 of the large circular transmission chain wheel body 41, and the axial thickness of the inner sleeve 44 is larger than that of the large circular transmission chain wheel body 41. The inner sleeve 44 is provided with a key groove 45.

The above-mentioned embodiments are only for understanding the present invention, and are not intended to limit the technical solutions of the present invention, and those skilled in the relevant art can make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications should be covered by the scope of the claims of the present invention. The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. A large circulating transmission chain wheel of a vertical circulating stereo garage is characterized in that a lifting chain (1) is arranged on the vertical circulating stereo garage, and the lifting chain (1) is of an annular structure formed by sequentially hinging a plurality of chain links (2) end to end through chain link hinged shafts (3); big sprocket of circulation transmission (4) are including big sprocket body of circulation transmission (41), its characterized in that: the centroid of the circular transmission big chain wheel body (41) is axially provided with a shaft hole (42); at least 8 chain driving grooves (5) meshed with the chain link articulated shafts (3) of the lifting chains (1) are annularly arrayed on the radial outer peripheral surface of the circular transmission large chain wheel body (41) along the central axis of the shaft hole (42); the diameter of the circular transmission large chain wheel body (41) is not less than 1400 mm.

2. The large sprocket for circular transmission of vertical circular stereo garage of claim 1, wherein: a plurality of lightening holes (43) are axially arranged on the circular transmission large chain wheel body (41), and the centroid of each lightening hole (43) follows the centroid annular array of the circular transmission large chain wheel body (41).

3. The large sprocket for circular transmission of vertical circular stereo garage of claim 2, wherein: the ratio of the aperture of the lightening holes (43) to the diameter of the large circulating transmission chain wheel body (41) is 1: 4-1: 7.

4. the large sprocket for circular transmission of vertical circular stereo garage of claim 1, wherein: an inner sleeve (44) is arranged on a shaft hole (42) of the circular transmission large chain wheel body (41), and the axial thickness of the inner sleeve (44) is larger than that of the circular transmission large chain wheel body (41).

5. The large sprocket for circular transmission of vertical circular stereo garage of claim 4, wherein: the inner sleeve (44) is provided with a key slot (45).

6. The large sprocket for circular transmission of vertical circular stereo garage of claim 1, wherein: the shaft hole (42) is provided with a key slot (45).

7. The large sprocket for circular transmission of vertical circular stereo garage of claim 1, wherein: the thickness of the part of the large circulating transmission chain wheel body (41) close to the shaft hole (42) is larger than that of the rest part.

8. The large sprocket for circular transmission of vertical circular stereo garage of claim 1, wherein: the section of the chain driving groove (5) close to the axle hole (42) end and perpendicular to the axle wire direction of the axle hole (42) is semicircular, the section of the chain driving groove (5) far away from the axle hole (42) end and perpendicular to the axle wire direction of the axle hole (42) is trapezoidal, and the length of the trapezoidal edge far away from the axle hole (42) end is greater than that of the edge close to the axle hole (42) end.

9. The large sprocket for circular transmission of vertical circular stereo garage of claim 1, wherein: the circular transmission big chain wheel (4) is a steel circular transmission big chain wheel (4).

10. The large sprocket for circular transmission of vertical circular stereo garage of claim 1, wherein: each chain link (2) comprises two chain links (21) which are arranged in parallel, the same ends of the two chain links (21) are connected with a chain link hinge shaft (3), and the two chain links (21) are vertical to the axle wire of the chain link hinge shaft (3).

11. The large sprocket for circular transmission of vertical circular stereo garage of claim 1, wherein: a roller (6) is coaxially arranged on each chain link articulated shaft (3); when the endless transmission large sprocket rotates, the chain drive grooves (5) on the radially outer peripheral surface of the endless transmission large sprocket body (41) can be engaged with the radially outer peripheral surface of each roller (6).