WO2008000158A1

WO2008000158A1 - Dynamical synchronization hoisting pallet

Info

Publication number: WO2008000158A1
Application number: PCT/CN2007/001941
Authority: WO
Inventors: Jingbao Wang
Original assignee: Hebei Hongdi Parking Equipment Co., Ltd.
Priority date: 2006-06-23
Filing date: 2007-06-20
Publication date: 2008-01-03

Abstract

A dynamical synchronization hoisting device includes a lifting pallet, motors (11), reduction boxes, transmission shafts (1,2,3,4), transmission sprockets (12) and chains (13), wherein at least three transmission shafts (1,2,3,4) are positioned, each of which is provided with a motor (11), a brake mechanism and a cycloid reduction unit (9). The output end of the cycloid reduction unit (9) located at one end of each transmission shaft (1,2,3,4) is connected with a synchronization mechanism, and the other end of each transmission shaft (1,2,3,4) is connected with transmission sprockets (12) and chains (13) through a reducer (14). Each transmission shaft (1,2,3,4) further includes shaft couplings (10) or universal joints (7) and bearing supports (8). The hoisting device is applicable for lifting pallet or turntable of stereo-parking device with advantage of smooth operation.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of elevator or car stereo parking garages. BACKGROUND OF THE INVENTION In the conventional car stereo parking garage, the lifting platform of the car is equipped with a rotating platform, and a large motor drives a large bevel disk through a reduction gear box, and then the large bevel gear rotates through the small bevel gears to drive the transmission shafts. And sprocket, chain drive. The lifting device transmits a large torsion and transmits a large power. The required transmission shaft is thick and heavy, the rotation speed is low, the energy consumption is high, the work reliability, safety and stability are poor, and the structure and the force design are unreasonable. When the motor stops rotating due to a fault, the whole machine stops working, affecting the access to the car, reducing the working efficiency; the turntable stop speed on the platform is slow and unstable. Some lifting devices are hoisted, and so on. These devices are difficult to synchronize, smooth, fast and safe for the platform. This is very unfavorable for the safety of the car to move out of the warehouse and improve work efficiency. It also brings a lot of inconvenience and trouble to the operator's use and maintenance. SUMMARY OF THE INVENTION The object of the present invention is to provide a power synchronous lifting platform, which is characterized by: good dynamic synchronism, equal force distribution, equal transmission torque and speed, stable platform lifting, simple and reasonable structure, especially when a certain motor fails When the work is stopped, it does not affect the normal operation of the whole machine. It has high reliability, high safety, convenient use and improved work efficiency. It is widely used in various lifting platforms or lifting wheels such as lifting platforms and elevators. It is especially suitable for use on the three-dimensional parking garage lifting platform or lifting carousel.

The main technical solution of the present invention is: a power synchronous lifting platform, comprising an electric motor, a reduction box, a transmission shaft, a transmission sprocket and a chain, wherein the transmission shaft has at least three or more, and each of the transmission shafts is provided with an electric motor. , brakes, reducers, through couplings or universal joints and shafts The bearing connection is supported, and the output of the reducer on all the drive shafts is connected to the synchronizing mechanism. The other end of all the drive shafts is connected to the chain and the lifting platform through the reducer and the sprocket.

The number of the transmission shafts is preferably four or six.

The brake motor for the electric motor and the brake device is preferred.

Preferably, each of the transmission shafts is provided with two electric motors, all of which are brake motors. Or more than 2 brake motors are provided.

The speed reducer is preferably a cycloidal pinwheel reducer. Its transmission is relatively large. It can also be replaced by other gearboxes with higher gear ratios.

The speed reducer is preferably a worm gear reducer, because it has a self-locking function, and is more stable and safe, the worm and the drive shaft are coaxial, and the worm wheel and the drive sprocket are coaxial. Gear reducers and the like can also be used.

The above-mentioned synchronizing mechanism can be configured as follows: Each of the transmission shaft ends is connected with a small bevel gear, and the small bevel gears on all the transmission shafts are meshed with the same large bevel gear. It is especially suitable for 3 or 4 simultaneous connections to upload moving axes. Or for other synchronization agencies.

The large bevel gear of the above-mentioned synchronizing mechanism can also be connected to a reducer and a motor, and the reducer is preferably a cycloidal pin reducer to enhance power and synchronize.

In order to reduce the bearing capacity of power and its synchronization, save power and energy, reduce structural weight and size, and save material, it is better to have a lifting platform pulley type weight mechanism. The simpler structure is that one side of the fixed pulley is a lifting platform, and one side is a counterweight.

In order to effectively shorten the up and down stroke of the counterweight, reduce the amount of civil construction work and facilitate the construction, the preferred structure of the pulley type weighting mechanism of the lifting platform is: the rope connected to the lifting platform passes through the top 2 (or 1, 3, etc.) After the pulley is fixed, the lower movable pulley is bypassed and fixed on the upper frame, and the weight is hung on the frame of the movable pulley. Or use the movable pulley block, the rope is wound several times, reducing the force on the rope and the weight stroke, the weight stroke is shortened, and the weight of the weight should be increased.

The lifting platform can be equipped with a guide whip or safety gear brake mechanism, and a safety buffer (structure that can be used with the elevator) on the ground below the lifting platform.

In order to further enhance and ensure the balance, synchronization and safety and reliability of the lifting platform, it is better to provide a lifting platform to synchronously lift the secondary balance and stabilize the safety chain, and the two ends of the chain are respectively fixed. Fixed at the upper and lower ends of the fixed frame, the middle of the chain is provided with a sprocket and a chain reversing sprocket fixed on the lifting platform.

In order to facilitate the work and practicality, a turntable can be arranged on the lifting platform as needed, and the turntable can be provided with a mechanism for accurately and rapidly rotating the positioning and stopping position, and the structure is as follows: a magnet opening and closing position is arranged below the rotating platform. And the proximity control piece of the gap control mechanism and the proximity switch; the magnet opening and closing type and the gap control mechanism and the proximity switch body are arranged on the lifting platform of the lifting platform or at least one parking space corresponding to the parking floor, the proximity switch body and the proximity The slices are positioned opposite each other and the proximity switch is connected to the control circuit.

The magnet opening and closing and gap control mechanism provided under the turntable may have a structure, and the bracket has a magnet and a proximity piece of the proximity switch; the stop on the lifting frame of the lifting device The corresponding position is provided with an iron plate, the iron plate is outside the magnet, and the proximity switch body is mounted on the frame on the lifting frame of the lifting platform, and a limit stop is arranged beside the magnet. The magnet pull-in not only ensures the clearance, but also generates damping to prevent the inertia of the stop, making the stop position accurate and reliable. It is also possible to provide a suction iron on the bracket, and a magnet is arranged at a corresponding position on the lifting platform of the lifting platform. When the magnet is pulled in, the proximity switch can be reduced to the acceptable clearance. The control mechanism can also be other structures.

Preferably, the limit stop has a curved guide structure. In order to slide the iron plate into place.

Preferably, the lifting platform of the lifting platform is provided with a ring frame, and the magnet opening and closing position and the gap control mechanism are mounted thereon.

According to the need, the ring frame can be mounted with a plurality of, for example, 6, 8, 12 magnet opening and closing and clearance control mechanisms and the proximity switch body, and the distance is equally divided.

The above magnet is preferably a permanent magnet. It can also be in the form of an electromagnet structure.

In order to make the power on the hand lifting platform convenient and convenient, the work is convenient and practical. The lifting platform is provided with a turntable. The middle part of the lifting platform is provided with a cylinder tube. The cylinder tube is provided with a rotating shaft, and the rotating shaft is connected with the rotating wheel, and the rotating shaft has multi-layer collecting electricity. The ring is a collector ring shaft, and the cylinder is provided with a brush corresponding to the sliding ring corresponding to the above-mentioned collector ring, and each layer of the collector ring and the corresponding brush respectively pass through the connection terminal, the wire and each electric device Connected to the power supply.

In order to reduce weight and light weight, the above lifting platform preferably has three or four lifting arms, cylinders It is located at the intersection where the arms are connected.

The effect of the invention is remarkable: the power can be synchronized, the force is balanced, the transmission torque and speed are equal, the platform is lifted smoothly, the structure is simple and reasonable, compact, and the material is cut, especially when one of the motors stops working due to failure, does not affect The whole machine works normally, the reliability and safety are strong, and the work efficiency is improved. The structure of the weight mechanism is simple and compact, applicable, labor-saving, saving, safe, convenient to maintain, and can effectively shorten the up and down stroke of the weight, and reduce the civil construction work. The quantity, convenient construction, low engineering cost and low cost further increase the balance safety; the lifting platform synchronously lifts the second balance and stabilizes the safety chain, further enhancing and ensuring the balance, synchronization and safety reliability of the lifting platform; Rotating platform rotary positioning mechanism, simple and compact structure, can ensure the rotational positioning and stop position of the rotating platform is accurate, reliable, fast, convenient, simple, offset inertia, reliable performance, and solves the rotation of the lifting platform turntable that has been existing in the prior art. Positioning and stopping speed is slow and working The problem of low efficiency; the collector ring shaft has compact structure, many conductive points, reliable operation, convenient use, safety, long service life and convenient maintenance. The invention not only solves the problem of improving the power synchronization, safety reliability and stability of the lifting platform, but also saves power, reduces consumption, is convenient to use, reliable in work, and improves production and work efficiency. This innovative application is widely used on a variety of lifting platforms or lifting wheels such as lifting platforms and elevators. It is especially suitable for use on the three-dimensional parking garage lifting platform or lifting tray.

The following is a detailed description of the embodiments, but is not intended to limit the invention.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a top plan view of a portion of a synchronous power transmission device in accordance with the present invention.

Fig. 2 is an enlarged schematic view showing the structure of the transmission shaft 3 of Fig. 1.

Figure 3 is a partial view taken along line A of Figure 1.

Fig. 4 is a schematic view showing the structure of a lifting platform pulley type weighting mechanism in the present invention.

Figure 5 is a schematic view showing the structure of the turntable positioning mechanism of the present invention.

Figure 6 is a cross-sectional view taken along line A-A of Figure 5.

Figure 7 is a plan view of Figure 5. - Figure 8 is a schematic view showing the structure of a rotating ring type rotating shaft of the turntable of the present invention. Figure 9 is a cross-sectional view taken along line BB of Figure 8. Detailed ways

In Fig. 1 to Fig. 3, 1, 2, 3, and 4 are transmission shafts, 5 is a large bevel gear, 6 is a small bevel gear, 7 is a universal joint, 8 is a bearing seat, 9 is a reducer, and 10 is a coupling. , 11 is the motor, 12 is the sprocket, 13 is the chain, 14 is the reducer, 15 is the sprocket, 16 is the reverse sprocket, 17 is the secondary balanced stable safety chain.

Referring to FIG. 1 to FIG. 3, the power synchronous lifting platform of the present invention has four power transmission shafts 1, 2, 3 and 4, and two electric motors 11 are arranged on each of the transmission shafts 1, 2, 3 and 4. All are brake motors, and reducer 9 is a cycloidal pinwheel reducer (its reduction ratio is large), with bearing housing 8, and coupling 10, universal joint 7; all drive shafts 1, 2, 3, The output end of the cycloidal speed reducer 9 of 4 is connected with the synchronizing mechanism; the structure of the synchronizing mechanism: each of the transmission shafts 1, 2, 3, 4 end is connected with a small bevel gear 6, and all the small bevel gears 6 are The same large bevel gear 5 is meshed; the other ends of all the transmission shafts 1, 2, 3, 4 are connected to the chain 13 through the speed reducer 1 (worm gear reducer) and the sprocket 12, the worm and the drive shaft are coaxial, the worm wheel and The sprocket 17 is coaxial. The structure of the synchronizing mechanism is: one small bevel gear 6 is connected to each of the transmission shafts 1, 1, 3, and 4, and the small bevel gears 6 on all the transmission shafts 1, 2, 3, and 4 are the same large bevel gears. The 5-phase meshing, the large bevel gear 5 of the synchronizing mechanism and the cycloidal pinwheel reducer are connected to the motor. And a synchronous lifting secondary balance stable safety chain 17, the two ends of the chain 17 are respectively fixed to the upper end and the lower end of the fixed frame, and the lifting platform is provided with a sprocket 15 and a chain reversing sprocket 16 .

In Fig. 4, 18 is a rope, 19 is a fixed pulley, 20 is a shell frame, 21 is a turntable, 22 is a lifting platform, 23 is a safety damper frame body, 24 is a movable pulley, 25 is a counterweight, and the remaining numbers are the same as above.

Referring to FIG. 4, a lifting platform pulley weighting mechanism is provided. The structure is: the rope 18 connected to the lifting platform 22 passes through the upper two fixed pulleys 19, and then bypasses the lower moving pulley 24 and is fixed on the upper frame 20. The weight 25 is hung on the frame of the movable pulley 24.

In Fig. 5 to Fig. 7, 26 is a magnet opening and closing and clearance control mechanism (below the rotary platform 1), 261 is a bracket, 262 is a limit stop, 2621 is a curved guide structure, and 263 is a magnet. 27 is the proximity switch body, 28 is the proximity piece, and 29 is (the lifting frame of the lifting device 6) The magnet is opened and closed and the gap control mechanism, 291 is an iron plate, 292 is a frame, and 30 is a ring frame (on the lifting frame of the lifting platform 22), and the other symbols are the same as above.

Referring to FIG. 5 to FIG. 7 , a rotating positioning and stopping mechanism is arranged on the turntable, and the structure is: a magnet opening and closing and a gap control mechanism 26 disposed under the turntable 21 has a structure 261, and the bracket 261 The magnet 263 and the proximity piece 28 of the proximity switch are disposed thereon; the iron plate 291 is disposed at a corresponding position on the lifting frame of the lifting platform 22, the iron plate 291 is outside the magnet 263, and the proximity switch body 27 is mounted on the lifting platform 22 The frame 292 on the lifting frame is provided with a limiting stopper 262 beside the magnet 263, and the limiting stopper 262 has an arc-shaped sliding structure 2621. The lifting frame of the lifting platform 22 is provided with an annular frame 30 on which the magnet opening and closing and the gap control mechanism 29 are mounted. The ring frame 30 is provided with 6, 8, 12 magnet opening and closing parking and clearance control mechanisms 29 and a proximity switch body 27.

In Fig. 8 to Fig. 9, 31 is a cylinder, 32 is a brush (1 to 2 per ring), 33 is a collector ring, 34 is a (hollow) shaft, 35 is an insulating ring, and the rest are the same as above.

Referring to FIG. 8 to FIG. 9, the lifting platform 22 is provided with a turntable 21, and the middle of the lifting platform 22 is provided with a cylinder 31. The cylinder 31 is provided with a rotating shaft 34. The upper surface of the rotating shaft 34 is connected with the turntable 21, and the rotating shaft 34 is connected (by insulation). The layer 35 has a multi-layer collector ring 33, which is a collector ring shaft, and the cylinder 31 is provided with a brush 32 corresponding to the sliding ring 33 and slidingly matched with the collector ring 33, and each layer of the collector ring 33 and its corresponding The brush 32 is connected to the electrical device and the power source through the terminal and the wire, respectively.

Claims

1. A power synchronous lifting platform, comprising a lifting platform, an electric motor, a reduction box, a transmission shaft, a transmission sprocket and a chain, characterized in that the transmission shafts (1, 2, 3, 4) have at least three or more, each transmission The shaft (1, 2, 3, 4) is provided with a motor (11), a brake device and a reducer (9), which are connected by a coupling (10) or a universal joint (7) and a bearing housing (8). Support, the output of the reducer (9) on all drive shafts (1, 2, 3, 4) is connected to the synchronizing mechanism, and the other end of all drive shafts (1, 2, 3, 4) is passed through the reducer ( 14) The sprocket (12) is connected to the chain (13) and the lifting platform.

2. A power synchronous lifting platform according to claim 1, characterized in that said transmission shafts (1, 2, 3, 4) are four.

A power synchronous lifting platform according to claim 1, wherein said speed reducer (9) is a cycloidal pin gear reducer.

A power-assisted lifting platform according to claim 1, characterized in that said motor (11) and a braking device brake motor.

The power synchronous lifting platform according to claim 4, characterized in that each of the transmission shafts (1, 2, 3, 4) is provided with two electric motors (11).

6. The power synchronous lifting platform according to claim 1, wherein the speed reducer (14) is a worm gear reducer, the worm and the drive shaft (1, 2, 3, 4) are coaxial, the worm wheel and the chain Wheel (12) is coaxial.

7. The power synchronous lifting platform according to claim 1, characterized in that a lifting platform pulley type weighting mechanism is provided.

8. The power synchronous lifting platform according to claim 7, wherein the lifting platform pulley type weighting mechanism has the following structure: the rope (18) connected to the lifting platform (21) passes through the two fixed pulleys ( 19), then bypass the lower moving pulley (24), fixed on the upper frame (20), and the weight (25) is hung on the frame of the movable pulley (24).

9. The power synchronous lifting platform according to claim 1, characterized in that synchronization is provided The lifting and lowering balance balance safety chain (17), the two ends of the chain (17) are respectively fixed on the upper end and the lower end of the fixing frame, and the sprocket (15) and the chain reversing sprocket fixed on the lifting platform are arranged in the middle of the chain ( 16).

10 . The power synchronous lifting platform according to claim 1 , wherein the lifting platform is provided with a turntable, and the rotating wheel is provided with a rotating positioning and stopping mechanism, and the structure is: a magnet is opened under the rotating platform ( 21 ). Proximity stop and clearance control mechanism (26) and proximity switch proximity

(28); a magnet opening and closing stop and gap control mechanism (29) and a proximity switch body (27) are provided on the lifting platform (30) of the lifting platform or at least one parking space corresponding to the parking floor, the proximity switch body (27) Opposite the position of the proximity piece (28).

11. The power synchronous lifting platform according to claim 10, characterized in that the magnet-fitted stop and gap control mechanism (26) provided under the turntable (21) is configured to have a bracket (261), a bracket (261) is provided with a magnet (263), a proximity piece (28) of the proximity switch, and an iron plate (291) is provided at a corresponding position on the lifting platform (30) of the lifting platform (22). The iron plate (291) is located outside the magnet (263), and the proximity switch body (27) is mounted on the frame (292) on the lifting frame of the lifting platform (22), and the magnet (263) is provided with a limit Bit stop (262).

12. The power synchronous lifting platform according to claim 11, wherein said limit stop (262) has an arcuate guide structure (2621).

13. The power synchronous lifting platform according to claim 12, characterized in that: the lifting frame of the lifting platform (22) is provided with a ring frame (30), a magnet opening and closing parking position and a gap control mechanism (29) Mounted on it.

14. The power synchronous lifting platform according to claim 13, wherein said ring frame (30) is provided with 6, 8, 12 magnet opening and closing parking and gap control mechanisms (29) and a proximity switch body ( 28).

The power synchronous lifting platform according to claim 1, characterized in that the lifting platform (22) is provided with a turntable (21), and the middle portion of the lifting platform (22) is provided with a cylinder tube (31), and the cylinder tube (31) There is a rotating shaft (34), the upper part of the rotating shaft (34) is connected with the turntable (21), and the rotating shaft (34) is provided with a multi-layer collecting ring (33), which is a collecting ring shaft, and the cylinder tube (31) is provided with The above collector ring (33) Corresponding to and slidingly matching the brush (32), each layer of the collector ring (33) and its corresponding brush (32) are respectively connected through the terminal and the wire and the electrical equipment and the power source.

16. According to claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,

The power synchronous lifting platform according to 14 or 15, wherein the synchronizing mechanism has the following structure: each of the transmission shafts (1, 2, 3, 4) has a small bevel gear (6) connected thereto, all of the transmissions. The small bevel gears (6) on the shaft (1, 2, 3, 4) are meshed with the same large bevel gear (5).

17. A power synchronous lifting platform according to claim 16, wherein the large bevel gear (5) of the synchronizing mechanism and the cycloidal pin gear reducer are coupled to the motor.