Double-drive elevator

Abstract

The invention provides a double-drive elevator which comprises a main body support, a cargo carrying table, a left driving assembly and a right driving assembly, the cargo carrying table is slidably installed in the main body support, the sliding direction of the cargo carrying table is perpendicular to the horizontal plane direction, and the left driving assembly and the right driving assembly are both installed with the main body support in a combined mode. The left driving assembly and the right driving assembly are in transmission connection with the two sides of the cargo carrying table correspondingly, and the left driving assembly and the right driving assembly are both of a driving structure with a motor combined with a balance weight. According to the double-drive elevator, a double-counterweight suspension type structure is adopted to drive the cargo carrying table to move up and down, the ground pressure is more balanced, the overall structure is more stable, the ground bearing requirement is lower, and the building cost is lower; the double-drive elevator is driven in a balance mode through the balance weight, the requirement for the working torque of the motor is lower, the motor with small power can be adopted, and the production cost is lower.

Description

Technical Field

[0001] The present invention relates to the technical field related to logistics warehousing equipment, and more precisely to a dual-drive elevator. Background Art

[0002] With the popularity of air travel, higher requirements are placed on the efficiency and reliability of airport logistics. At the same time, with the continuous advancement of logistics and warehousing technology, the popularity of stereoscopic warehouses has gradually increased, and stereoscopic warehouses have gradually become an important part of airport logistics. The elevator is the core equipment of the stereoscopic warehouse, which is mainly used for vertical or slope transportation of materials. It usually uses power machinery to drag flexible parts and the transported goods up and down to realize the transportation function. In order to ensure that passengers have a satisfactory freight experience, higher requirements are placed on the stability, safety and cleanliness of the elevator.

[0003] At present, the elevators commonly used in airport stereoscopic warehouses mostly adopt a single counterweight structure, which is driven by wire rope traction or sprocket chain. Among them, the one driven by wire rope traction is referred to as a traction elevator, and the one driven by sprocket chain is referred to as a chain elevator. Both the single-counterweight traction elevator and the chain elevator will cause uneven force on the ground, so the bearing capacity of the ground is required to be higher. In addition, the transmission structure of the traction elevator is prone to slippage, wears faster, and easily affects the efficiency and safety of use; the transmission structure of the chain elevator is noisy, and the chain lubricant is easy to contaminate the goods, affecting the freight experience.

[0004] In summary, the art needs a hoist that can reduce ground bearing requirements, has a safer and more stable structure, is less prone to slipping, and does not contaminate cargo. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a dual-drive hoist, which adopts a dual counterweight drive structure to drive the cargo platform to move up and down, so as to improve the stability of the overall structure, reduce the bearing demand of the ground, avoid slipping, and improve transmission efficiency.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a dual-drive hoist, including a main body bracket, a cargo platform, a left drive assembly and a right drive assembly. The cargo platform can be slidably installed in the main body bracket, and the sliding direction of the cargo platform is perpendicular to the horizontal plane direction. The left drive assembly and the right drive assembly are both installed in combination with the main body bracket, and the left drive assembly and the right drive assembly are respectively connected to the two sides of the cargo platform by transmission. The left drive assembly and the right drive assembly both adopt a drive structure of a motor combined with a counterweight.

[0007] Preferably, the main body bracket is composed of four columns and several cross beams. The columns are arranged perpendicular to the horizontal plane, and the columns are connected by several cross beams. A set of cargo platform guide rails are installed on the main body bracket, and the cargo platform guide rails are respectively located on opposite sides of the cargo platform. The cargo platform guide rails are fixedly connected to several cross beams, and the cargo platform is slidably connected to the two cargo platform guide rails.

[0008] Preferably, the left drive assembly includes a left motor, a left synchronous belt, left synchronous belt pulleys and a left counterweight. The left motor and the left synchronous belt pulleys are both installed in combination with the cross beam at the top of the main body bracket. The left motor is drivingly connected to the left synchronous belt pulleys. The inner side of the left synchronous belt has a toothed structure, and the left synchronous belt is wound around the left synchronous belt pulleys through the toothed structure on the inner side. Both ends of the left synchronous belt pulleys are connected to the cargo platform and the left counterweight respectively.

[0009] Preferably, a tensioning device installed in combination with the cross beam is arranged at the top of the left synchronous belt pulley. The bottom of the tensioning device has several guide wheels contacting the left synchronous belt from the top, and the left synchronous belt is clamped between the left synchronous belt pulley and the several guide wheels.

[0010] Preferably, several left counterweight guide wheels are respectively installed on both sides of the left counterweight. Several counterweight guide rails are installed on the main body bracket and are arranged in cooperation with the left counterweight guide wheels. The counterweight guide rails are installed in combination with the columns and the cross beams.

[0011] Preferably, the right drive assembly includes a right motor, a right synchronous belt, right synchronous belt pulleys and a right counterweight. The right motor and the right synchronous belt pulleys are both installed in combination with the cross beam at the top of the main body bracket. The right motor is drivingly connected to the right synchronous belt pulleys. The inner side of the right synchronous belt has a toothed structure, and the right synchronous belt is wound around the right synchronous belt pulleys through the toothed structure on the inner side. Both ends of the right synchronous belt pulleys are connected to the cargo platform and the right counterweight respectively.

[0012] Preferably, a tensioning device installed in combination with the cross beam is arranged at the top of the right synchronous belt pulley. The bottom of the tensioning device has several guide wheels contacting the right synchronous belt from the top, and the right synchronous belt is clamped between the right synchronous belt pulley and the several guide wheels.

[0013] Preferably, several right counterweight guide wheels are respectively installed on both sides of the right counterweight. Several counterweight guide rails are installed on the main body bracket and are arranged in cooperation with the right counterweight guide wheels. The counterweight guide rails are installed in combination with the columns and the cross beams.

[0014] Preferably, maintenance platforms are installed at the positions where the left drive assembly and the right drive assembly are installed on both sides of the top of the main body bracket, and the maintenance platforms are installed in combination with the columns.

[0015] Preferably, connectors respectively connected to the left drive assembly and the right drive assembly are installed on two opposite sides of the loading platform. A loading platform guide wheel assembly is installed on the connectors, and the loading platform guide wheel assembly is slidably connected to the loading platform guide rail; the loading platform guide wheel assembly includes a plurality of loading platform guide wheels rotatably connected to the connectors, and the loading platform guide wheels are in contact with the loading platform guide rail; a protective net combined and installed with the connectors is arranged outside the loading platform guide wheels.

[0016] Compared with the prior art, the advantages of a dual-drive hoist disclosed by the present invention are as follows: the dual-drive hoist adopts a dual-counterweight suspension structure to drive the loading platform to move up and down, which is more balanced in terms of ground pressure, has a more stable overall structure, has lower requirements for ground bearing, and lower construction costs; the dual-drive hoist is driven by counterweight balance, has lower requirements for the working torque of the motor, can adopt a motor with a smaller power, and has lower production costs; the dual-drive hoist adopts a synchronous belt drive, which can prevent slipping and oil stain pollution of goods during operation, improves the operation efficiency and safety, and at the same time improves the freight transportation experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] As Figure 1 shown is a schematic structural diagram of a dual-drive hoist of the present application.

[0019] As Figure 2 shown is Figure 1 an enlarged schematic diagram of a partial structure in

[0020] As Figure 3 shown is a partial structural schematic diagram of the combination of the drive assembly and the loading platform of a dual-drive hoist of the present application.

[0021] As Figure 4 shown is Figure 3 an enlarged schematic diagram of a partial structure in

[0022] As Figure 5 shown is Figure 3 the structural schematic diagram of the left counterweight in

[0023] As Figure 6 shown is Figure 3 an enlarged schematic diagram of a partial structure of the loading platform in

[0024] like Figure 7 Shown Figure 3 An enlarged schematic diagram of part of the structure of the middle cargo platform. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1 and Figure 2 As shown, the present application discloses a dual-drive hoist including a main frame 1, a cargo platform 2, a left drive assembly 31 and a right drive assembly 32. The cargo platform 2 is slidably mounted in the main frame 1, and the sliding direction of the cargo platform 2 is perpendicular to the horizontal plane. The left drive assembly 31 and the right drive assembly 32 are both mounted in combination with the main frame 1, and the left drive assembly 31 and the right drive assembly 32 are respectively connected to the two sides of the cargo platform 2 by transmission. The left drive assembly 31 and the right drive assembly 32 both adopt a driving structure of a motor combined with a counterweight. The dual-drive hoist adopts a double-counterweight suspension structure to drive the cargo platform to move up and down, which is more balanced for ground pressure, more stable for the overall structure, lower for ground load requirements, and lower for construction costs.

[0027] The main frame 1 is composed of four columns 10 and a plurality of beams 11. The columns 10 are arranged perpendicular to the horizontal plane, and the columns 10 are connected by a plurality of beams 11. A set of cargo platform guide rails 12 are installed on the main frame 1. The cargo platform guide rails 12 are respectively located on the opposite sides of the cargo platform 2. The cargo platform guide rails 12 are fixedly connected to the plurality of beams 11, and the cargo platform 2 is slidably connected to the two cargo platform guide rails 12.

[0028] See also Figure 2 A maintenance platform 14 is installed at the positions where the left drive assembly 31 and the right drive assembly 32 are installed on both sides of the top of the main frame 1. The maintenance platform 14 is installed in combination with the column 10 to facilitate the maintenance work of the staff. In order to facilitate the staff to reach the maintenance platform 14, a ladder 141 is installed on the side of the maintenance platform 14. The ladder 141 is installed in combination with the maintenance platform 14 and the column 10. A maintenance device 15 is installed in combination with the crossbeam 11 at the top of the main frame 1. The maintenance device 15 is located at the top of the left drive assembly 31 and the right drive assembly 32 respectively. After the staff reaches the maintenance platform 14, they can operate the maintenance device 15 to perform maintenance and replacement operations, and the maintenance operation is convenient and fast.

[0029] See also Figures 3 to 5, the left drive assembly 31 includes a left motor 310, a left synchronous belt 311, left synchronous belt pulleys 312, and a left counterweight 313. The left motor 310 and the left synchronous belt pulleys 312 are both integrally mounted to the cross beam 11 at the top of the main body bracket 1. The left motor 310 is in transmission connection with the left synchronous belt pulleys 312. The inner side of the left synchronous belt 311 has a toothed structure, and the left synchronous belt 311 is wound around the left synchronous belt pulleys 312 through the toothed structure on the inner side. The two ends of the left synchronous belt pulleys 312 are respectively connected to the loading platform 2 and the left counterweight 313. When the left motor 310 drives the left synchronous belt pulleys 312 to rotate, it drives the loading platform 2 to rise. Under the action of the left counterweight 313, the power required by the left motor 310 can be greatly reduced.

[0030] Specifically, the left motor 310 is integrally mounted to the cross beam 11 through a left motor mounting bracket 3100, and the left synchronous belt pulleys 312 are integrally mounted to the main body bracket 1 through left synchronous belt pulley bearing seats 3120. A tensioning device 3121 integrally mounted to the cross beam 11 is provided at the top of the left synchronous belt pulleys 312. The bottom of the tensioning device 3121 has a number of guide pulleys 3122 that contact the left synchronous belt 311 from the top. The left synchronous belt 311 is clamped between the left synchronous belt pulleys 312 and the number of guide pulleys 3122 to prevent the left synchronous belt 311 from slipping off and avoid slipping.

[0031] A number of left counterweight guide pulleys 314 are respectively installed on both sides of the left counterweight 313, and a number of counterweight guide rails 13 that cooperate with the left counterweight guide pulleys 314 are installed on the main body bracket 1. The counterweight guide rails 13 are integrally mounted to the columns 10 and the cross beam 11. Through the combined setting of the left counterweight guide pulleys 314 and the counterweight guide rails 13, the left counterweight 313 can be guided to move along a fixed trajectory.

[0032] , the right drive assembly 32 includes a right motor 320, a right synchronous belt 321, right synchronous belt pulleys 322, and a right counterweight 323. The right motor 320 and the right synchronous belt pulleys 322 are both integrally mounted to the cross beam 11 at the top of the main body bracket 1. The right motor 320 is in transmission connection with the right synchronous belt pulleys 322. The inner side of the right synchronous belt 321 has a toothed structure, and the right synchronous belt 321 is wound around the right synchronous belt pulleys 322 through the toothed structure on the inner side. The two ends of the right synchronous belt pulleys 322 are respectively connected to the loading platform 2 and the right counterweight 323. When the right motor 320 drives the right synchronous belt pulleys 322 to rotate, it drives the loading platform 2 to rise. Under the action of the right counterweight 323, the power required by the right motor 320 can be greatly reduced.

[0033] Specifically, the right motor 320 is installed in combination with the cross beam 11 through a right motor mounting bracket, and the right synchronous pulley 322 is installed in combination with the main body bracket 1 through a right synchronous pulley bearing seat. A tensioning device installed in combination with the cross beam 11 is provided at the top of the right synchronous pulley 322. A number of guide wheels that contact the right synchronous belt 321 from the top are provided at the bottom of the tensioning device. The right synchronous belt 321 is clamped between the right synchronous pulley 322 and a number of guide wheels to prevent the right synchronous belt 321 from slipping off and avoid slipping.

[0034] A number of right counterweight guide wheels are respectively installed on both sides of the right counterweight 323. A number of counterweight guide rails 13 that are arranged in cooperation with the right counterweight guide wheels are installed on the main body bracket 1. The counterweight guide rails 13 are installed in combination with the column 10 and the cross beam 11. Through the combined setting of the right counterweight guide wheels and the counterweight guide rails 13, the right counterweight 323 can be guided to move along a fixed track.

[0035] The double-drive hoist is driven by a counterweight for balance, which requires a lower working torque for the motor. A motor with a smaller power can be used, and the production cost is lower. The double-drive hoist uses a synchronous belt drive, which can prevent slipping and oil stain pollution of goods during operation, improve the operation efficiency and safety, and at the same time improve the freight transportation experience.

[0036] See Figure 6 and Figure 7 , connecting pieces 21 respectively connected to the left drive assembly 31 and the right drive assembly 32 are installed on the two opposite sides of the loading platform 2. A loading platform guide wheel assembly 22 is installed on the connecting pieces 21. The loading platform guide wheel assembly 22 is slidably connected to the loading platform guide rail 12.

[0037] The loading platform guide wheel assembly 22 includes a number of loading platform guide wheels 221 rotatably connected to the connecting pieces 21. The loading platform guide wheels 221 contact the loading platform guide rail 12. Further, a protective net 222 installed in combination with the connecting pieces 21 is provided outside the loading platform guide wheels 221 to avoid the situation where the loading platform guide wheels 221 are stuck due to external sundries entering, improve the use safety, and reduce the failure rate.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-drive hoist, characterized in that, It includes a main frame, a cargo platform, a left drive assembly and a right drive assembly. The cargo platform can be slidably installed in the main frame, and the sliding direction of the cargo platform is perpendicular to the horizontal plane. The left drive assembly and the right drive assembly are both installed in combination with the main frame, and the left drive assembly and the right drive assembly are respectively connected to the two sides of the cargo platform by transmission. The left drive assembly and the right drive assembly both adopt a driving structure of a motor combined with a counterweight.

2. The double-drive elevator according to claim 1, characterized in that, The main body support is composed of four columns and several cross beams. The columns are arranged perpendicular to the horizontal plane, and the columns are connected by several cross beams. A group of cargo platform guide rails are installed on the main body support. The cargo platform guide rails are respectively located on two opposite sides of the cargo platform. The cargo platform guide rails are fixedly connected to several cross beams, and the cargo platform is slidably connected to two of the cargo platform guide rails.

3. The double-drive elevator according to claim 2, wherein, The left drive assembly includes a left motor, a left synchronous belt, a left synchronous pulley and a left counterweight. The left motor and the left synchronous pulley are both installed in combination with the crossbeam on the top of the main support. The left motor is drivingly connected to the left synchronous pulley. The inner side of the left synchronous belt has a toothed structure. The left synchronous belt is arranged on the left synchronous pulley through the inner toothed structure. The two ends of the left synchronous pulley are respectively connected to the cargo platform and the left counterweight.

4. The dual-drive elevator according to claim 3, characterized in that, A tensioning device combined with the crossbeam is arranged on the top of the left synchronous pulley, and a plurality of guide wheels contacting the left synchronous belt from the top are arranged on the bottom of the tensioning device, and the left synchronous belt is clamped between the left synchronous pulley and the plurality of guide wheels.

5. The double-drive elevator according to claim 3, characterized in that, A plurality of left counterweight guide wheels are respectively installed on both sides of the left counterweight, a plurality of counterweight guide rails matched with the left counterweight guide wheel are installed on the main frame, and the counterweight guide rails are installed in combination with the column and the crossbeam.

6. The double-drive elevator according to claim 2, characterized in that, The right drive assembly includes a right motor, a right synchronous belt, a right synchronous pulley and a right counterweight. The right motor and the right synchronous pulley are both installed in combination with the crossbeam on the top of the main support. The right motor is transmission-connected to the right synchronous pulley. The inner side of the right synchronous belt has a toothed structure. The right synchronous belt is arranged on the right synchronous pulley through the inner toothed structure. Both ends of the right synchronous pulley are respectively connected to the cargo platform and the right counterweight.

7. The double-drive elevator according to claim 6, characterized in that, A tensioning device combined with the crossbeam is arranged on the top of the right synchronous pulley, and a plurality of guide wheels contacting the right synchronous belt from the top are arranged on the bottom of the tensioning device, and the right synchronous belt is clamped between the right synchronous pulley and the plurality of guide wheels.

8. The dual-drive elevator according to claim 6, characterized in that, A plurality of right counterweight guide wheels are respectively installed on both sides of the right counterweight, and a plurality of counterweight guide rails matched with the right counterweight guide wheels are installed on the main frame, and the counterweight guide rails are installed in combination with the column and the crossbeam.

9. The dual-drive elevator according to claim 2, characterized in that, Maintenance platforms are respectively installed at the positions where the left drive assembly and the right drive assembly are installed on both sides of the top of the main body bracket, and the maintenance platforms are installed in combination with the columns.

10. The dual-drive elevator according to claim 2, characterized in that, Connectors connected to the left drive assembly and the right drive assembly respectively are installed on opposite sides of the loading platform. A loading platform guide wheel assembly is installed on the connectors, and the loading platform guide wheel assembly is slidably connected to the loading platform guide rail; the loading platform guide wheel assembly includes a number of loading platform guide wheels rotatably connected to the connectors, and the loading platform guide wheels are in contact with the loading platform guide rail; a protective net combined and installed with the connectors is arranged outside the loading platform guide wheels.

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