Braking system for preventing transmission chain from being broken and stalled in vertical circulating stereo garage

By using a cyclic speed detection unit and a braking system with the main rotating shaft brake in a vertical circulation three-dimensional garage, the problem of stalling of the circulating large chain when the transmission chain is broken or the motor fails, significantly reducing safety hazards.

CN222478309UActive Publication Date: 2025-02-14SHANDONG JIU ROAD PARKING EQUIP CO LTD
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Patent Information

Application Number
CN202420305775.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-20
Publication Date
2025-02-14
Estimated Expiration
2034-02-20

AI Technical Summary

Technical Problem

When the transmission chain breaks, the motor brake fails or the motor reducer fails, the circulating large chain stalls and cannot effectively brake, which poses huge safety hazards.

Method used

Adopt the anti-drive chain chain breakage and stall braking system including a cyclic speed detection unit, a main rotating shaft holding brake and a control device. By detecting the cyclic speed and controlling the brake shoe of the main rotating shaft holding brake when necessary, the brake brake is braked by the main rotating shaft holding brake. , prevent chain stalling.

Benefits of technology

It effectively prevents the stalling of the circulating large chain when the transmission chain is broken, the motor brake fails or the motor reducer fails, reducing safety hazards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222478309U_ABST
Patent Text Reader

Abstract

The utility model discloses a braking system for preventing a transmission chain from being broken and stalled for a vertical circulating stereo garage, which belongs to the technical field of stereo garages and comprises a circulating speed detection unit, a main rotating shaft band-type brake and a control device. The circulating speed detection unit and the main rotating shaft band-type brake are connected with the control device; the main rotating shaft band-type brake is installed on a frame body of the vertical circulating stereo garage and comprises two brake shoes which are located on the two sides of a main rotating shaft of the vertical circulating stereo garage and can brake the main rotating shaft. The braking system for preventing the transmission chain of the vertical circulating stereo garage from being broken and stalling can solve the problems that when the transmission chain of the circulating stereo garage is broken, a motor band-type brake fails or a motor speed reducer fails, a vehicle carrying frame stalls, and effective braking cannot be achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of stereo garages, in particular to a braking system for a vertical circulation stereo garage. Background Art

[0002] The main features of vertical circulation parking equipment are short production and installation cycle, low equipment failure rate, simple operation and maintenance, and low maintenance cost.

[0003] The driving device of the existing vertical circulation stereoscopic car park includes left and right frames, a driving motor is installed on one frame, a driving wheel is sleeved on the output shaft of the driving motor, a transmission horizontal shaft is arranged across the frame below the driving motor, a driven wheel is sleeved on the transmission horizontal shaft just below the driving wheel, the driving wheel and the driven wheel are connected by a transmission belt, gears are sleeved on the left and right ends of the transmission horizontal shaft, and a top support for supporting a large circulating chain is installed just above each gear on the top of the frame; large circulating chains wound around the top rotating disk and the gears are correspondingly arranged on the left and right sides of the frame from top to bottom, and a plurality of vehicle carriers are suspended on the large circulating chains through a plurality of vehicle carrier chain plates.

[0004] The vertical circulation parking equipment currently on the market uses motor brakes for braking. When the transmission chain breaks, the motor brake fails, or the motor reducer fails, the vehicle-carrying chain will stall because a vehicle-carrying frame for parking vehicles is installed on the large circulating chain of the vertical circulation multi-story parking garage. This causes the main rotating shaft connected to the vehicle-carrying chain to rotate rapidly, generating a huge impulse and making it impossible to brake effectively, posing a huge safety hazard. Summary of the invention

[0005] The purpose of the utility model is to provide a vertical circulation stereo garage to prevent the transmission chain from breaking and stalling, in view of the deficiencies in the prior art, so as to solve the problem that the circulating large chain stalls and cannot be effectively braked when the transmission chain of the circulating stereo garage breaks, the motor brake fails or the motor reducer fails.

[0006] The technical solution adopted by the utility model is as follows.

[0007] A vertical circulation multi-story parking garage anti-stall braking system due to transmission chain breakage, wherein the main rotating shaft of the vertical circulation multi-story parking garage is connected to the driving motor of the vertical circulation multi-story parking garage through a transmission chain, and is characterized in that the vertical circulation multi-story parking garage anti-stall braking system due to transmission chain breakage includes a circulation speed detection unit, a main rotating shaft brake, and a control device; the circulation speed detection unit and the main rotating shaft brake are connected to the control device; the main rotating shaft brake is installed on the frame of the vertical circulation multi-story parking garage, and includes two brake shoes located on both sides of the main rotating shaft of the vertical circulation multi-story parking garage that can brake the main rotating shaft.

[0008] The beneficial effects of the utility model are as follows: the circulation speed detection unit detects that the circulation speed is too fast and transmits information to the control system, and the control device controls the two brake shoes of the main rotating shaft brake to brake the main rotating shaft, thereby preventing the large circulation chain from stalling when the transmission chain breaks, the motor brake fails, or the motor reducer fails in the vertical circulation multi-story parking garage, thereby preventing huge safety hazards.

[0009] As a preferred technical solution, the frame body includes two frame plates perpendicular to the main rotating shaft, the two frame plates are respectively connected to the left and right ends of the main rotating shaft, and the main rotating shaft brake is installed on one of the frame plates.

[0010] As an optimal technical solution, the main rotating shaft brake includes a front brake arm, a rear brake arm, a pull rod, a driving triangle plate, a spring return mechanism, and a driving device; the bottom ends of the front brake arm and the rear brake arm are hinged on one of the frames of the vertical circulation multi-story parking garage, and the middle parts of the front brake arm and the middle parts of the rear brake arm are hinged to the spring return mechanism; the top ends of the front brake arm and the rear brake arm are connected to the pull rod, and the pull rod, the driving triangle plate, and the driving device are connected in sequence.

[0011] As a preferred technical solution, the rear side of the front brake arm and the front side of the rear brake arm are both equipped with brake shoes; the two brake shoes are respectively located in front and rear of the main rotating shaft of the vertical circulation stereo garage;

[0012] The driving device is arranged at the rear side of the rear brake arm, the front lower end of the driving triangle plate is hinged to the top end of the rear brake arm, the front upper end of the driving triangle plate is hinged to the pull rod, the pull rod is hinged to the top end of the front brake arm, and the rear end of the driving triangle plate is connected to the driving device.

[0013] or,

[0014] The driving device is arranged at the front side of the front brake arm, the rear lower end of the driving triangle plate is hinged to the top end of the front brake arm, the rear upper end of the driving triangle plate is hinged to the pull rod, the pull rod is hinged to the top end of the rear brake arm, and the front end of the driving triangle plate is connected to the driving device.

[0015] As a preferred technical solution, an iron plate is provided at the end of the driving triangle plate close to the driving device, and the driving device is an electromagnet arranged under the iron plate.

[0016] or,

[0017] The driving device is an electric hydraulic pusher arranged under the iron plate, and the driving device end for driving the triangular plate is connected to the electric hydraulic pusher.

[0018] As a preferred technical solution, the spring reset mechanism includes a rod, a block, a block slideway, and a spring. The block slideway is provided with a sliding groove whose central axis is in the same straight line as the central axis of the rod. The block is connected to the rod, and the rear end of the block is inserted into the sliding groove of the block slideway. The spring is located in the sliding groove.

[0019] The block slide is hinged to the rear brake arm, one end of the spring is connected to the block, and the other end of the spring is connected to the rear brake arm.

[0020] or,

[0021] The block slide is hinged to the front brake arm, one end of the spring is connected to the block, and the other end of the spring is connected to the front brake arm. A spring return mechanism is provided, and in the non-braking state, the two brake shoes do not interfere with the rotation of the main rotating shaft.

[0022] As a preferred technical solution, a brake wheel is coaxially fixed between the two brake shoes of the main rotating shaft. Under the drive of the driving device, the two brakes can clamp or release the brake wheel.

[0023] As a preferred technical solution, the main rotating shaft includes a main rotating shaft center shaft, and two main rotating shaft side shafts coaxially mounted on the left and right ends of the main rotating shaft center shaft respectively;

[0024] One of the side shafts of the main rotating shaft is located between two brake shoes, and under the drive of the driving device, the two brakes can hold or loosen the side shaft of the main rotating shaft. This technical solution is convenient for the installation and transportation of the main rotating shaft.

[0025] As a preferred technical solution, a brake wheel is coaxially fixed to the side shaft of the main rotating shaft between the two brake shoes. Under the drive of the driving device, the two brakes can clamp or release the brake wheel.

[0026] As a preferred technical solution, a transmission wheel is provided on the main rotating shaft;

[0027] A driving motor is provided on one of the two frames, and a power output wheel of the driving motor is connected to a transmission wheel through a transmission chain. A power transmission gear is provided at the front and rear ends of the main rotating shaft respectively. A circulating large chain driving wheel connected to the gear is provided under each power transmission gear, and each circulating large chain driving wheel is connected to a circulating large chain. The main rotating shaft brake is installed on the other frame.

[0028] As a preferred technical solution, the main rotating shaft includes a main rotating shaft center shaft, and two main rotating shaft side shafts coaxially mounted on the left and right ends of the main rotating shaft center shaft respectively;

[0029] Each main rotating shaft is provided with a power transmission gear, and each frame is provided with a large circulating chain driving wheel meshing with the power transmission gear below each power transmission gear, and each large circulating chain driving wheel is connected to a large circulating chain;

[0030] Among the two main rotating shaft side shafts, a transmission wheel is provided on one of the main rotating shaft side shafts, a driving motor is provided on a frame plate close to the transmission wheel, a power output wheel of the driving motor is connected to the transmission wheel through a transmission chain, and a main rotating shaft brake is provided on a frame plate close to the other main rotating shaft side shaft.

[0031] As a preferred technical solution, the circulation speed detection unit includes a sensor set on the frame to detect the transmission chain rotation speed, or a sensor to detect the circulation large chain rotation speed, or a sensor to detect the main rotating shaft rotation speed, or a sensor to detect the circulation large chain driving wheel rotation speed, or a sensor to detect the transmission wheel rotation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The utility model is a structural schematic diagram of a vertical circulation stereo garage equipped with a transmission chain breakage and stall prevention braking system according to a preferred embodiment of the utility model.

[0033] Figure 2 yes Figure 1 A partial enlarged view of part A.

[0034] Figure 3 yes Figure 1 A partial enlarged view of part B.

[0035] Figure 4 yes Figure 3 A partial enlarged view of part C.

[0036] Figure 5 yes Figure 4 A partial enlarged view of part E.

[0037] Figure 6 yes Figure 3 A partial enlarged view of part D.

[0038] Figure 7 yes Figure 6 A partial enlarged view of part F.

[0039] Figure 8 yes Figure 7 A partial enlarged view of part G.

[0040] Fig. 9 yes Figure 1 The front view of the vertical circulation multi-story parking garage is shown.

[0041] Fig.10 yes Fig. 9 A partial enlarged view of part H.

[0042] Fig.11 yes Fig. 9 A partial enlarged view of part I.

[0043] Fig.12 The utility model is a structural schematic diagram of a vertical circulation stereo garage equipped with a transmission chain breakage and stall prevention braking system according to a preferred embodiment of the utility model.

[0044] Fig.13 yes Fig.12A partial enlarged view of part J.

[0045] Fig.14 The utility model is a structural schematic diagram of a vertical circulation stereo garage equipped with a transmission chain breakage and stall prevention braking system according to a preferred embodiment of the utility model.

[0046] Fig.15 yes Fig.14 A partial enlarged view of part K.

[0047] Fig.16 The utility model is a structural schematic diagram of a vertical circulation stereo garage equipped with a transmission chain breakage and stall prevention braking system according to a preferred embodiment of the utility model.

[0048] Fig.17 yes Fig.16 A partial enlarged view of the L part.

[0049] Fig.18 The utility model is a structural schematic diagram of a vertical circulation stereo garage equipped with a transmission chain breakage and stall prevention braking system according to a preferred embodiment of the utility model.

[0050] Fig.19 yes Fig.18 A partial enlarged view of part M.

[0051] Fig. 20 yes Fig.18 A local enlarged view of part N.

[0052] Fig.21 The utility model is a structural schematic diagram of a vertical circulation stereo garage equipped with a transmission chain breakage and stall prevention braking system according to a preferred embodiment of the utility model.

[0053] Fig. 22 yes Fig.21 A partial enlarged view of part O.

[0054] Fig.23 The utility model is a structural schematic diagram of a vertical circulation stereo garage equipped with a transmission chain breakage and stall prevention braking system according to a preferred embodiment of the utility model.

[0055] Fig.24 yes Fig.23 A partial enlarged view of part P.

[0056] Fig.25 The utility model is a structural schematic diagram of a vertical circulation stereo garage equipped with a transmission chain breakage and stall prevention braking system according to a preferred embodiment of the utility model.

[0057] Fig.26 yes Fig.25 A partial enlarged view of the Q part.

[0058] Fig. 27The utility model is a schematic structural diagram of a transmission chain breakage and stall prevention braking system installed in a preferred embodiment of the utility model.

[0059] Fig.28 The utility model is a schematic structural diagram of a transmission chain breakage and stall prevention braking system installed in a preferred embodiment of the utility model.

[0060] Among them: frame body-1; frame piece-11; connecting frame-12;

[0061] Main rotating shaft brake-2; brake shoe-21; front brake arm-22; rear brake arm-23; pull rod-24; driving triangle plate-25; spring return mechanism-26; rod-261; block-262; block slideway-263; spring-264; sliding groove-265;

[0062] Driving device-27; Iron plate-28;

[0063] Main rotating shaft-3; transmission chain-31; driving motor-32; power output wheel-321; main rotating shaft middle shaft-33; main rotating shaft side shaft-34; connecting flange-35;

[0064] Braking wheels - 4;

[0065] Transmission wheel-5; circulating large chain driving wheel-51; circulating large chain-52; vehicle-carrying chain plate-53; power transmission gear-54. DETAILED DESCRIPTION

[0066] Below, the utility model is further described in conjunction with the drawings and embodiments.

[0067] Embodiment 1. A vertical circulation stereo garage anti-drive chain break stall braking system, wherein the main rotating shaft 3 of the vertical circulation stereo garage is connected to the driving motor 32 of the vertical circulation stereo garage through a transmission chain 31, and the vertical circulation stereo garage anti-drive chain break stall braking system comprises a circulation speed detection unit, a main rotating shaft brake 2, and a control device; the circulation speed detection unit and the main rotating shaft brake 2 are connected to the control device; the main rotating shaft brake 2 is installed on the frame 1 of the vertical circulation stereo garage, and comprises two brake shoes 21 located on both sides of the main rotating shaft 3 of the vertical circulation stereo garage and capable of braking the main rotating shaft 3.

[0068] The frame body 1 includes two frame plates 11 perpendicular to the main rotating shaft 3. The two frame plates 11 are respectively connected to the left and right ends of the main rotating shaft 3. The main rotating shaft brake 2 is installed on the frame plate 11 located at the right end of the vertical circulation stereo garage.

[0069] The main rotating shaft brake 2 includes a front brake arm 22, a rear brake arm 23, a pull rod 24, a driving triangle plate 25, a spring return mechanism 26, and a driving device 27; the bottom ends of the front brake arm 22 and the rear brake arm 23 are hinged on one of the frame plates 11 of the vertical circulation stereo garage, and the middle parts of the front brake arm 22 and the middle parts of the rear brake arm 23 are hinged to the spring return mechanism 26; the top ends of the front brake arm 22 and the rear brake arm 23 are connected to the pull rod 24, and the pull rod 24, the driving triangle plate 25, and the driving device 27 are connected in sequence.

[0070] Brake shoes 21 are installed on the rear side of the front brake arm 22 and the front side of the rear brake arm 23; the two brake shoes 21 are respectively located at the front and rear sides of the main rotating shaft 3 of the vertical circulation stereo garage.

[0071] The driving device 27 is arranged at the rear side of the rear brake arm 23, the front lower end of the driving triangle plate 25 is hinged to the top end of the rear brake arm 23, the front upper end of the driving triangle plate 25 is hinged to the pull rod 24, the pull rod 24 is hinged to the top end of the front brake arm 22, and the rear end of the driving triangle plate 25 is connected to the driving device 27. An iron plate 28 is arranged at the end of the driving triangle plate 25 close to the driving device 27, and the driving device 27 is an electromagnet arranged below the iron plate 28.

[0072] The spring return mechanism 26 includes a rod 261, a block 262, a block slide 263, and a spring 264. The block slide 263 is provided with a sliding groove 265 whose central axis is in the same straight line as the central axis of the rod 261. The block 262 is connected to the rod 261. The rear end of the block 262 is inserted into the sliding groove 265 of the block slide 263. The spring 264 is located in the sliding groove 265.

[0073] The block slideway 263 is hinged to the rear brake arm 23 , one end of the spring 264 is connected to the block 262 , and the other end of the spring 264 is connected to the rear brake arm 23 .

[0074] A transmission wheel 5 is provided on the main rotating shaft 3;

[0075] The frame piece 11 located at the left end of the vertical circulation stereo garage is provided with a driving motor 32. The power output wheel 321 of the driving motor 32 is connected to the transmission wheel 5 through the transmission chain 31. The front and rear ends of the main rotating shaft 3 are respectively provided with a power transmission gear 54. Under each power transmission gear 54, a large circulating chain driving wheel 51 connected thereto is provided. Each large circulating chain driving wheel 51 is connected to a large circulating chain 52. The main rotating shaft brake 2 is installed on the frame piece 11 located at the right end of the vertical circulation stereo garage. A plurality of vehicle-carrying chain plates 53 are respectively provided on the two large circulating chains 52. A vehicle-carrying frame (not shown in the figure) is suspended between the vehicle-carrying chain plates 53 at the same height.

[0076] The circulation speed detection unit includes a sensor arranged on the frame 1 for detecting the rotation speed of the transmission chain 31 .

[0077] The circulation speed detection unit detects that the circulation speed is too fast and transmits information to the control system. The control device controls the two brake shoes 21 of the main rotating shaft brake 2 to brake the main rotating shaft 3 to prevent the large circulation chain 52 from stalling when the transmission chain 31 breaks, the motor brake fails, or the motor reducer fails in the vertical circulation multi-story parking garage. That is, the large circulation chain 52 is prevented from rotating and stalling, and the frame on the vehicle carrying chain plate 53 thereon is prevented from rotating rapidly under the action of gravity, causing damage to the car on the frame, thereby preventing huge safety hazards.

[0078] Example 2. Figure 12-13 As shown, the difference between this embodiment and embodiment 1 is that the main rotating shaft brake is installed on the frame plate 11 located at the left end of the vertical circulation stereo garage. The circulation speed detection unit includes a sensor arranged on the frame 1 to detect the rotation speed of the circulation large chain 52.

[0079] Example 3. Figure 14-15 As shown, the difference between this embodiment and embodiment 1 is that a brake wheel 4 is coaxially fixed between the two brake shoes 21 of the main rotating shaft 3, and the two brakes can hold or release the brake wheel 4 under the drive of the driving device 27. The circulation speed detection unit includes a sensor arranged on the frame 1 to detect the rotation speed of the main rotating shaft 3. The brake wheel 4 is provided to increase the braking area of ​​the two brakes.

[0080] Example 4. Figure 16-17 As shown, the difference between this embodiment and embodiment 2 is that a brake wheel 4 is coaxially fixed between the two brake shoes 21 of the main rotating shaft 3, and the two brakes can tighten or loosen the brake wheel 4 under the drive of the driving device 27. The circulating speed detection unit includes a sensor arranged on the frame 1 to detect the rotation speed of the circulating large chain driving wheel 51. The brake wheel 4 is provided to increase the braking area of ​​the two brakes.

[0081] Example 5. Figure 18-20 As shown, the difference between this embodiment and embodiment 1 is that the main rotating shaft 3 includes a main rotating shaft center shaft 33, and two main rotating shaft side shafts 34 coaxially mounted on the left and right ends of the main rotating shaft center shaft 33;

[0082] The main rotating shaft side shaft 34 at the right end of the vertical circulation stereo garage is located between the two brake shoes 21. Under the drive of the driving device 27, the two brakes can tighten or loosen the main rotating shaft side shaft 34.

[0083] Specifically, the main rotating shaft 3 includes a main rotating shaft center shaft 33, and two main rotating shaft side shafts 34 coaxially installed at the left and right ends of the main rotating shaft center shaft 33;

[0084] Each main rotating shaft side shaft 34 is provided with a power transmission gear 54, and a circulating large chain driving wheel 51 meshing with the power transmission gear 54 is provided below each power transmission gear 54 on each frame, and each circulating large chain driving wheel 51 is connected to a circulating large chain 52;

[0085] Of the two main rotating shaft side shafts 34, the main rotating shaft side shaft 34 located at the left end of the main rotating shaft middle shaft 33 is provided with a transmission wheel 5, and the frame piece 11 located at the left end of the vertical circulation stereo garage is provided with a driving motor, and the power output wheel of the driving motor is connected to the transmission wheel 5 through a transmission chain 31. The frame piece 11 of the main rotating shaft side shaft 34 near the right end of the main rotating shaft middle shaft 33 is provided with a main rotating shaft brake 2. The circulation speed detection unit includes a sensor arranged on the frame body to detect the rotation speed of the transmission wheel 5.

[0086] Example 6. Figure 21-22 As shown, the difference between this embodiment and embodiment 5 is that the main rotating shaft brake 2 is installed on the frame plate 11 at the left end of the vertical circulation stereo garage. The main rotating shaft side shaft 34 at the left end of the vertical circulation stereo garage is located between the two brake shoes. Under the drive of the driving device, the two brakes can tighten or loosen the main rotating shaft side shaft 34.

[0087] Example 7. Figure 23-24 As shown, the difference between this embodiment and embodiment 5 is that a brake wheel 4 is coaxially fixed to the main rotating shaft side shaft 34 located between the two brake shoes 21, and the two brakes can tighten or loosen the brake wheel 4 under the drive of the driving device 27. The brake wheel 4 is provided to increase the braking area of ​​the two brakes.

[0088] Example 8. Figure 25-26 As shown, the difference between this embodiment and embodiment 6 is that a brake wheel 4 is coaxially fixed to the main rotating shaft side shaft 34 located between the two brake shoes 21, and under the drive of the driving device, the two brakes can tighten or loosen the brake wheel 4. The brake wheel 4 is provided to increase the braking area of ​​the two brakes.

[0089] Example 9. Fig. 27 As shown, the difference between this embodiment and embodiment 1 is that the driving device 27 is an electric hydraulic pusher arranged under the iron plate 28, and the end of the driving device 27 that drives the triangular plate 25 is hinged to the power output rod of the electric hydraulic pusher.

[0090] Example 10. Fig.28As shown, the difference between this embodiment and the first embodiment is that the driving device 27 is arranged at the front side of the front brake arm 22, the rear lower end of the driving triangle plate 25 is hinged to the top end of the front brake arm 22, the rear upper end of the driving triangle plate 25 is hinged to the pull rod 24, the pull rod 24 is hinged to the top end of the rear brake arm 23, and the front end of the driving triangle plate 25 is connected to the driving device 27. The block slide 263 is hinged to the front brake arm 22, one end of the spring 264 is connected to the block 262, and the other end of the spring 264 is connected to the front brake arm 22.

Claims

1. A vertical circulation stereo garage anti-chain breakage and stall braking system, wherein the main rotating shaft (3) of the vertical circulation stereo garage is connected to a driving motor (32) of the vertical circulation stereo garage via a transmission chain (31), and the system is characterized in that: A transmission chain breakage and stall prevention braking system for a vertical circulation stereo garage comprises a circulation speed detection unit, a main rotating shaft brake (2), and a control device; the circulation speed detection unit and the main rotating shaft brake (2) are connected to the control device; the main rotating shaft brake (2) is installed on a frame (1) of the vertical circulation stereo garage, and comprises two brake shoes (21) located on both sides of the main rotating shaft (3) of the vertical circulation stereo garage and capable of braking the main rotating shaft (3).

2. The vertical circulation stereo garage anti-chain breakage and stall braking system according to claim 1, characterized in that: The frame body (1) comprises two frame plates (11) perpendicular to the main rotating shaft (3); the two frame plates (11) are respectively connected to the left and right ends of the main rotating shaft (3); and the main rotating shaft brake (2) is mounted on one of the frame plates (11).

3. The vertical circulation stereo garage anti-chain breakage and stall braking system as claimed in claim 2, characterized in that: The main rotating shaft brake (2) comprises a front brake arm (22), a rear brake arm (23), a pull rod (24), a driving triangular plate (25), a spring return mechanism (26), and a driving device (27); the bottom ends of the front brake arm (22) and the rear brake arm (23) are both hinged on one of the frame plates (11) of the vertical circulation stereo garage, and the middle parts of the front brake arm (22) and the middle parts of the rear brake arm (23) are both hinged to the spring return mechanism (26); the top ends of the front brake arm (22) and the rear brake arm (23) are connected to the pull rod (24), and the pull rod (24), the driving triangular plate (25), and the driving device (27) are connected in sequence.

4. The vertical circulation stereo garage anti-chain breakage and stall braking system as claimed in claim 3, characterized in that: Braking shoes (21) are installed on the rear side of the front brake arm (22) and the front side of the rear brake arm (23); the two braking shoes (21) are respectively located on the front and rear sides of the main rotating shaft (3) of the vertical circulation stereo garage; The driving device (27) is arranged at the rear side of the rear brake arm (23); the front lower end of the driving triangle plate (25) is hinged to the top end of the rear brake arm (23); the front upper end of the driving triangle plate (25) is hinged to the pull rod (24); the pull rod (24) is hinged to the top end of the front brake arm (22); the rear end of the driving triangle plate (25) is connected to the driving device (27); or, The driving device (27) is arranged on the front side of the front brake arm (22); the rear lower end of the driving triangle plate (25) is hinged to the top end of the front brake arm (22); the rear upper end of the driving triangle plate (25) is hinged to the pull rod (24); the pull rod (24) is hinged to the top end of the rear brake arm (23); and the front end of the driving triangle plate (25) is connected to the driving device (27).

5. The vertical circulation stereo garage anti-chain breakage and stall braking system as claimed in claim 4 is characterized by: An iron plate (28) is provided at the end of the driving triangle plate (25) close to the driving device (27). The driving device (27) is an electromagnet arranged below the iron plate (28). or, The driving device (27) is an electric hydraulic pusher arranged below the iron plate (28), and the end of the driving device (27) that drives the triangular plate (25) is connected to the electric hydraulic pusher.

6. The vertical circulation stereo garage anti-chain breakage and stall braking system as claimed in claim 3, characterized in that: The spring return mechanism (26) comprises a rod (261), a stopper (262), a stopper slideway (263), and a spring (264); a slide groove (265) is provided on the stopper slideway (263) and a central axis thereof is in the same straight line as the central axis of the rod (261); the stopper (262) is connected to the rod (261); a rear end of the stopper (262) is inserted into the slide groove (265) of the stopper slideway (263); and the spring (264) is located in the slide groove (265); The block slideway (263) is hinged to the rear brake arm (23), one end of the spring (264) is connected to the block (262), and the other end of the spring (264) is connected to the rear brake arm (23). or, The block slideway (263) is hinged to the front brake arm (22), one end of the spring (264) is connected to the block (262), and the other end of the spring (264) is connected to the front brake arm (22).

7. The vertical circulation stereo garage anti-chain breakage and stall braking system according to any one of claims 2 to 6, characterized in that: A brake wheel (4) is coaxially fixed between two brake shoes (21) of the main rotating shaft (3). Under the drive of the driving device (27), the two brakes can clamp or release the brake wheel (4).

8. The vertical circulation stereo garage anti-chain breakage and stall braking system according to any one of claims 2 to 6, characterized in that: The main rotating shaft (3) comprises a main rotating shaft center shaft (33), and two main rotating shaft side shafts (34) coaxially mounted on the left and right ends of the main rotating shaft center shaft (33); One of the main rotating shaft side shafts (34) is located between the two brake shoes (21). Under the drive of the driving device (27), the two brakes can clamp or loosen the main rotating shaft side shaft (34).

9. The vertical circulation stereo garage anti-chain breakage and stall braking system according to any one of claims 2 to 6, characterized in that: A brake wheel (4) is coaxially fixed to the main rotating shaft side shaft (34) between the two brake shoes (21). Under the drive of the driving device (27), the two brakes can clamp or release the brake wheel (4).

10. The vertical circulation stereo garage anti-chain breakage and stall braking system according to any one of claims 2 to 6, characterized in that: A transmission wheel (5) is provided on the main rotating shaft (3); A driving motor (32) is provided on one of the two frames (11); a power output wheel (321) of the driving motor (32) is connected to a driving wheel (5) via a transmission chain (31); power transmission gears (54) are provided at the front and rear ends of the main rotating shaft (3); a circulating large chain driving wheel (51) connected thereto is provided below each power transmission gear (54); each circulating large chain driving wheel (51) is connected to a circulating large chain (52); and a main rotating shaft brake (2) is mounted on the other frame (11).

11. The vertical circulation stereo garage anti-chain breakage and stall braking system according to claim 10, characterized in that: The main rotating shaft (3) comprises a main rotating shaft center shaft (33), and two main rotating shaft side shafts (34) coaxially mounted on the left and right ends of the main rotating shaft center shaft (33); Each main rotating shaft side shaft (34) is provided with a power transmission gear (54), and a circulating large chain driving wheel (51) meshing with the power transmission gear (54) is provided below each power transmission gear (54) on each frame, and each circulating large chain driving wheel (51) is connected to a circulating large chain (52); Of the two main rotating shaft side shafts (34), a transmission wheel (5) is provided on one of the main rotating shaft side shafts (34), a driving motor (32) is provided on a frame plate (11) close to the transmission wheel (5), a power output wheel (321) of the driving motor (32) is connected to the transmission wheel (5) via a transmission chain (31), and a main rotating shaft holding brake (2) is provided on a frame plate (11) close to the other main rotating shaft side shaft (34).

12. The vertical circulation stereo garage anti-chain breakage and stall braking system according to claim 10, characterized in that: The circulation speed detection unit comprises a sensor arranged on the frame (1) for detecting the rotation speed of the transmission chain (31), or a sensor for detecting the rotation speed of the large circulation chain (52), or a sensor for detecting the rotation speed of the main rotating shaft (3), or a sensor for detecting the rotation speed of the large circulation chain driving wheel (51), or a sensor for detecting the rotation speed of the transmission wheel (5).