CN215479060U - Lifting device and hoisting equipment - Google Patents
Lifting device and hoisting equipment Download PDFInfo
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- CN215479060U CN215479060U CN202121606547.8U CN202121606547U CN215479060U CN 215479060 U CN215479060 U CN 215479060U CN 202121606547 U CN202121606547 U CN 202121606547U CN 215479060 U CN215479060 U CN 215479060U
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Abstract
The application relates to the technical field of hoisting equipment, and provides a lifting device and hoisting equipment. The lifting device comprises: a pulley block; the conveying belt is sleeved on the belt pulley set, and the conveying belt and the belt pulley set are in meshing transmission or friction transmission through tooth spaces; the bridge box is connected with the conveyor belt; the first power mechanism is connected with the belt pulley set, so that the belt pulley set drives the conveying belt to drive the cage to ascend or descend, the lifting device and the hoisting equipment are in meshing transmission or friction transmission through the conveying belt and the teeth in front of the belt pulley set, stability of the cage connected to the conveying belt in the ascending or descending process can be guaranteed, and safety and reliability of operation of the lifting device are improved.
Description
Technical Field
The application relates to the technical field of hoisting equipment, in particular to a lifting device and hoisting equipment.
Background
In the related prior art, there are two main types of transmission systems of a conventional elevator for a crane, one type is a traction type such as a steel wire rope, as shown in fig. 1, the steel wire rope traction type is mainly used for an indoor closed space, and for port environments, severe weather such as strong wind often occurs, and the steel wire rope is easily hooked with a peripheral structure. The other is a rack-and-pinion type, as shown in fig. 2, the rack-and-pinion type is liable to generate large impact and vibration during high-speed transmission, so that the transmission speed is limited.
Therefore, the lifter for the crane adopts a steel wire rope traction type or gear rack type transmission system, so that the safety is low and the reliability is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, a first aspect of the present disclosure is to provide a lifting device, which solves or improves the technical problems of low safety and poor reliability of a transmission system using a wire rope traction type or a rack and pinion type in the background art.
The first aspect of the present application provides a lifting device, comprising: a pulley block; the conveying belt is sleeved on the belt pulley set, and the conveying belt and the belt pulley set are in meshing transmission or friction transmission through tooth spaces; a bridge compartment connected with the conveyor belt; and the first power mechanism is connected with the belt pulley set so that the belt pulley set drives the conveyor belt to drive the axle box to ascend or descend.
According to the lifting device provided by the first aspect of the application, through the meshing transmission or friction transmission between the conveying belt and the teeth in front of the belt wheel set, the stability of the bridge compartment connected to the conveying belt in the ascending or descending process can be ensured, and the safety and the reliability of the operation of the lifting device are improved.
With reference to the first aspect, in a possible implementation manner, the lifting device further includes: and the tensioning mechanism is in mutual contact with the conveyor belt so as to tension the conveyor belt.
With reference to the first aspect, in one possible implementation manner, the tensioning mechanism includes: a tension wheel, which is contacted with the conveyor belt; and a driving device connected with the tensioning wheel, wherein the driving device is configured to drive the tensioning wheel to press the conveying belt.
With reference to the first aspect, in one possible implementation manner, the tensioning mechanism further includes: and the connecting rod mechanism is connected with the tensioning wheel and is connected with the driving device.
With reference to the first aspect, in one possible implementation manner, the link mechanism includes: one end of the connecting rod is connected with the tensioning wheel, and the other end of the connecting rod can rotate; and one end of the push rod is connected with the tensioning wheel, and the other end of the push rod is connected with the driving device.
With reference to the first aspect, in one possible implementation manner, the tensioning mechanism further includes: a pressure sensor configured to acquire and send a pressure value of a pressure between the tension pulley and the conveyor belt; and a first controller, which is in communication connection with the pressure sensor, and is configured to acquire the pressure value sent by the pressure sensor so as to control the driving device to drive the tensioning wheel to squeeze the conveying belt.
With reference to the first aspect, in one possible implementation manner, the tensioning mechanism further includes: the position detection module is configured to detect and send the displacement generated by the pressing of the tensioning wheel on the conveying belt; and the second controller is in communication connection with the position detection module and is configured to acquire the displacement sent by the position detection module so as to acquire the abrasion loss of the conveyor belt.
With reference to the first aspect, in a possible implementation manner, the lifting device further includes: and the balancing weight is connected with the conveying belt.
With reference to the first aspect, in a possible implementation manner, the lifting device further includes: the second power mechanism is connected with the belt pulley set and is constructed to be switched with the first power mechanism to drive the belt pulley set to rotate; and/or a guide configured to cause the axle to ascend or descend along the guide.
A second aspect of the present application provides a hoisting device comprising: a frame; the lifting device described in any implementation; the belt wheel set and the first power mechanism are respectively arranged on the rack.
The lifting device provided by the second aspect of the present application includes the lifting device in any one of the foregoing implementation manners, so that the technical effect of any one of the foregoing lifting devices is achieved, and details are not repeated herein.
Drawings
Fig. 1 is a schematic structural diagram of a belt drive system in the related art.
Fig. 2 is a schematic structural diagram of a rack and pinion transmission mode in the related art.
Fig. 3 is a schematic front view of a lifting device according to some implementations of the present disclosure.
Fig. 4 is a schematic side view of the lifting device provided in the implementation manner shown in fig. 3.
Fig. 5 is a schematic structural diagram of a tensioning mechanism of the lifting device provided in the implementation shown in fig. 3.
Fig. 6 is a block diagram illustrating a tensioning mechanism of a lift device provided by some implementations shown in fig. 3.
Fig. 7 is a block diagram of a tensioning mechanism of the lifting device provided in other implementations shown in fig. 3.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Summary of the application
In order to solve the technical problems of low safety and poor reliability of the existing lifter for the crane in the background technology due to the adoption of a steel wire rope traction type or gear and rack type transmission system, a synchronous belt dual-channel lifter can be adopted, double synchronous belts are respectively arranged on two sides of the lifter, a synchronous driving assembly is driven by the cooperation of a motor reducer and a lifting synchronous belt, and the synchronous belt and a driving synchronous wheel realize transmission through inter-tooth meshing, so that the lifting of a workpiece is realized. However, two synchronous belts are required to be arranged for the double-channel elevator, the structure is complex, and in addition, when loads on two sides are unevenly distributed, the abrasion degrees of the synchronous belts on the two sides are different, so that the elevator can deviate during working.
In view of the above technical problems, the present application provides a lifting device. Splitting the lifting device into two layers: the first layer is used for ensuring the stability of the workpiece in the transmission process; the second layer is used for preventing the deviation phenomenon caused by abrasion through the tensioning mechanism. Because the belt transmission structural style is comparatively steady, but the off tracking phenomenon appears again in pure belt transmission, consequently, with the transmission mode inter combination of belt transmission and rack and pinion, set up a plurality of and gear intermeshing's tooth on the belt, both can guarantee driven stationarity, make belt transmission be difficult to appear the off tracking phenomenon again to improve the security and the reliability of work piece in the lift in-process.
It should be noted that the lifting device provided by the present application can be applied to lifting equipment in any scene. Specifically, the mechanical structure is designed to complete a specific work task in a manner of completing a specific mechanical action or information transmission through a corresponding mechanical structure or a part or all of components in the mechanical structure.
Having described the general principles of the present application, various non-limiting embodiments of the present application will now be described with reference to the accompanying drawings.
Exemplary lifting device
Fig. 3 is a schematic structural diagram of a belt drive system in the related art. As shown in fig. 3, in one possible implementation, the lifting device 100 includes: a pulley block 110, a belt 120, a bridge compartment 130, and a first power mechanism 140.
Specifically, the conveyor belt 120 is sleeved on the pulley set 110, it can be understood that the pulley set 110 at least includes two pulleys, the two pulleys are arranged at an interval from top to bottom, and the conveyor belt 120 and the pulley set 110 are in inter-tooth meshing transmission or friction transmission, it can be understood that a plurality of teeth are arranged on the conveyor belt 120, and the pulleys are toothed belts, so that the teeth on the conveyor belt 120 and the teeth on the pulleys are in inter-meshing transmission, thereby preventing slipping and completing transmission of the conveyor belt 120. The transmission of the transmission belt 120 can also be completed by setting the transmission belt 120 and the belt wheel in a friction transmission structural form. And a cage 130 connected to the conveyor belt 120 such that the cage 130 ascends or descends in synchronization with the conveyor belt 120. The first power mechanism 140 is connected to the pulley block 110, so that the pulley block 110 drives the conveyor belt 120 to lift or lower the car. Wherein the first power mechanism 140 may be a motor.
The lifting device 100 can ensure the stability of the bridge carriage 130 connected to the conveyor belt 120 in the process of ascending or descending through the inter-tooth meshing transmission or friction transmission between the conveyor belt 120 and the front part of the pulley set 110, thereby improving the safety and reliability of the operation of the lifting device.
Continuing with fig. 1, in one possible implementation, the lifting device 100 further includes: a tensioning mechanism 150, the tensioning mechanism 150 and the conveyor belt 120 contacting each other to tension the conveyor belt 120. The tension mechanism 150 is disposed on the loose side of the transmission belt 120, and it can be understood that when the car 130 is connected to the transmission belt 120, the car 130 is located between the upper and lower pulleys, and the car 130 is connected to the transmission belt 120 on one side of the pulleys, and the transmission belt 120 on the other side of the pulleys is loose, and by disposing the tension mechanism 150 on the side, it can be ensured that the entire transmission belt 120 is driven in a tensioned state.
The lifting device 100 further includes: the balancing weight 160, the balancing weight 160 is connected with the conveyer belt 120, can guarantee the tensioning effect of conveyer belt 120.
Fig. 5 is a schematic structural diagram of a tensioning mechanism 150 of the lifting device provided in the implementation shown in fig. 3. As shown in fig. 5, in one possible implementation, the tensioning mechanism 150 includes: the tension wheel 151 and the driving device 153, the tension wheel 151 and the conveyor belt 120 are in contact with each other, the driving device 153 is connected with the tension wheel 151, and the driving device 153 may be an oil cylinder or a pneumatic component including an air pump. The driving device 153 is configured to drive the tension pulley 151 to press the conveyor belt 120. Wherein, the tensioning wheel 151 presses the conveyor belt 120 with a certain pre-tightening force to ensure the tensioning effect of the conveyor belt 120.
Continuing with fig. 5, in one possible implementation, the tensioning mechanism 150 further comprises: the link mechanism 155 and the link 1551 are structurally connected with the tension wheel 151, and the link mechanism 155 is connected with the driving device 153, it can be understood that the driving device 153 drives the link 1551 to actuate, and the link mechanism 155 drives the tension wheel 151 to extrude the conveyor belt 120, so that the tension between the tension wheel 151 and the conveyor belt 120 can be slowly increased, and the conveying of the conveyor belt 120 is more stable.
Continuing with FIG. 5, in one possible implementation, linkage 155 includes: a connecting rod 1551 and a push rod 1553, wherein one end of the connecting rod 1551 is connected with the tension wheel 151, and the other end of the connecting rod 1551 can rotate. It can be understood that the tension wheel 151 has a wheel shaft, the other end of the link 1551 is connected to the wheel shaft of the tension wheel 151, and the other end of the link 1551 is rotatably connected to a support of the upper end such that the tension wheel 151 can swing with a radius of the length of the link 1551. One end of the push rod 1553 is connected with the tension wheel 151, and the other end of the push rod 1553 is connected with the driving device 153, it can be understood that one end of the push rod 1553 is connected with the wheel shaft of the tension wheel 151, the other end of the push rod 1553 is rotatably connected with the driving device 153, and the push rod 1553 can be obliquely arranged to further ensure the stability of the transmission of the link mechanism 155. Under a preset tension force, the oil cylinder pushes the push rod 1553 to move along with the deformation of the toothed belt, and the push rod 1553 pushes the tension wheel 151 to tension the toothed belt. Meanwhile, the displacement sensor feeds back the displacement of the push rod 1553 of the oil cylinder, and the deformation of the toothed belt can be judged.
Fig. 6 is a block diagram illustrating a tensioning mechanism 150 of a lift device provided in some implementations illustrated in fig. 3. As shown in fig. 6, in one possible implementation, the tensioning mechanism 150 further includes: a pressure sensor 152 and a first controller 154, the pressure sensor 152 being configured to acquire and send a pressure value of the pressure between the tension pulley 151 and the conveyor belt 120. The first controller 154 is communicatively connected to the pressure sensor 152, and the first controller 154 is configured to obtain a pressure value sent by the pressure sensor 152 to control the driving device 153 to drive the tension wheel 151 to press the conveyor belt 120. Specifically, the pressure sensor 152 may be disposed on the push rod 1553, when the push rod 1553 pushes the tension wheel 151 to press the belt 120,
fig. 7 is a block diagram of a tensioning mechanism 150 of a lifting device provided in accordance with further implementations shown in fig. 3. As shown in fig. 7, in one possible implementation, the tensioning mechanism 150 further includes: a position detection module 156 and a second controller 158, the position detection module 156 configured to detect and send an amount of displacement of the belt 120 by the tensioner 151 pressing against the belt; the second controller 158 is communicatively coupled to the position detection module 156, and the second controller 158 is configured to obtain the displacement sent by the position detection module 156 to obtain the wear amount of the conveyor belt 120. The position detecting module 156 may be a displacement sensor, and can detect the displacement generated by the pressing of the tensioning wheel 151 on the conveyor belt 120. A displacement threshold may be set in the second controller 158, and when the displacement detected by the displacement sensor exceeds the displacement threshold, it may be determined that the wear of the conveyor belt has reached the threshold, and the conveyor belt 120 may be replaced or maintained to ensure the normal operation of the lifting device.
The first controller 154 and the second controller 158 may be a single PLC controller, or may be provided separately. It is understood that the first controller 154 and the second controller 158 are conventional and will not be described herein.
With continued reference to fig. 5, in one possible implementation, the driving device 153 is a hydraulic cylinder, the hydraulic cylinder includes a cylinder tube 1531 and a telescopic rod 1533, and the telescopic rod 1533 is connected to the tensioning wheel 151. Wherein, displacement detection module is used for detecting the elongation of telescopic link 1533, and the elongation corresponds the displacement volume, and when the elongation exceeded the elongation threshold value, then can judge that conveyer's wearing and tearing volume has reached the threshold value, and is simple, reliable.
Fig. 4 is a schematic side view of the lifting device provided in the implementation manner shown in fig. 3. As shown in fig. 4, in a possible implementation, the lifting device 100 further includes: a guide 180 so that the cage 130 ascends or descends along the guide 180. Wherein a guide device 180 is provided at each of opposite sides of the cage 130 so that the cage 130 does not roll over during ascending or descending. The guide device 180 specifically comprises a guide rail 181 and a guide wheel 183, and the guide wheel 183 runs along the guide rail 181, so that the structure is simple and reliable.
The lifting device further comprises: and the second power mechanism 170, wherein the second power mechanism 170 is connected with the pulley set 110. The second power mechanism 170 is configured to switch the rotation of the driving pulley set 110 with the first power mechanism 140. Specifically, the upper pulley has a pulley shaft, and the first power mechanism 140 is connected to one end of the pulley shaft and the second power mechanism 170 is connected to the other end of the pulley shaft. In use, when the first power mechanism 140 is used as a power driving pulley, the second power mechanism 170 is not activated. When the first power mechanism 140 fails, the second power mechanism 170 is started to drive the driving wheel to rotate, so that the failure rate of the system can be reduced by arranging the second power mechanism 170.
In this lifting device, the cage 130 is directly fixed to the conveyor belt 120 so that the cage 130 can move up and down with the toothed belt. The belt wheel and the toothed belt are engaged or friction-driven between teeth, the tensioning device is arranged at the end of the loose edge conveying belt 120 and can be automatically adjusted according to a preset tensioning force, and in addition, the abrasion loss of the toothed belt can be judged according to the displacement of the tensioning wheel 151. The car moves along the guide 180 during the lifting and lowering to prevent the car from rolling. The balancing weight 160 is installed on the loose side of the toothed belt, and the first power mechanism 140 and the second power mechanism 170 are respectively motors, so that the failure rate of the driving system can be reduced.
Exemplary lifting device
This hoisting equipment includes: the frame 200 and the lifting device 100 in any implementation manner, wherein the pulley set 110 and the first power mechanism 140 are respectively disposed on the frame. The guide rail 181 is coupled to the frame 200, and the second power mechanism 170 is also disposed on the frame 200.
The hoisting device provided by the second aspect of the present application includes the lifting apparatus 100 in any of the above implementation manners, so that the technical effect of any of the lifting apparatus 100 described above is achieved, and details are not repeated herein.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A lifting device, comprising:
a pulley block;
the conveying belt is sleeved on the belt pulley set, and the conveying belt and the belt pulley set are in meshing transmission or friction transmission through tooth spaces;
a bridge compartment connected with the conveyor belt; and
and the first power mechanism is connected with the belt pulley set so that the belt pulley set drives the conveyor belt to drive the axle carriage to ascend or descend.
2. The lifting device as recited in claim 1, further comprising:
and the tensioning mechanism is in mutual contact with the conveyor belt so as to tension the conveyor belt.
3. The lift device of claim 2, wherein the tensioning mechanism comprises:
a tension wheel, which is contacted with the conveyor belt; and
a drive device coupled to the tensioning wheel, the drive device configured to drive the tensioning wheel to squeeze the conveyor belt.
4. The lift device of claim 3, wherein the tensioning mechanism further comprises:
and the connecting rod mechanism is connected with the tensioning wheel and is connected with the driving device.
5. The lifting device as recited in claim 4, wherein the linkage mechanism comprises:
one end of the connecting rod is connected with the tensioning wheel, and the other end of the connecting rod can rotate; and
one end of the push rod is connected with the tensioning wheel, and the other end of the push rod is connected with the driving device.
6. The lifting device as recited in any of claims 3-5 wherein the tensioning mechanism further comprises:
a pressure sensor configured to acquire and send a pressure value of a pressure between the tension pulley and the conveyor belt; and
the first controller is in communication connection with the pressure sensor and is configured to acquire the pressure value sent by the pressure sensor so as to control the driving device to drive the tensioning wheel to squeeze the conveying belt.
7. The lifting device as recited in any of claims 3-5 wherein the tensioning mechanism further comprises:
the position detection module is configured to detect and send the displacement generated by the pressing of the tensioning wheel on the conveying belt; and
and the second controller is in communication connection with the position detection module and is configured to acquire the displacement sent by the position detection module so as to acquire the abrasion loss of the conveyor belt.
8. The lifting device as claimed in any one of claims 1 to 5, further comprising:
and the balancing weight is connected with the conveying belt.
9. The lifting device as claimed in any one of claims 1 to 5, further comprising:
the second power mechanism is connected with the belt pulley set and is configured to be switched with the first power mechanism to drive the belt pulley set to rotate; and/or
A guide configured to cause the axle to ascend or descend along the guide.
10. A hoisting device, comprising:
a frame; and
the lifting device of any one of claims 1 to 9;
the belt wheel set and the first power mechanism are respectively arranged on the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121606547.8U CN215479060U (en) | 2021-07-14 | 2021-07-14 | Lifting device and hoisting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121606547.8U CN215479060U (en) | 2021-07-14 | 2021-07-14 | Lifting device and hoisting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215479060U true CN215479060U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121606547.8U Active CN215479060U (en) | 2021-07-14 | 2021-07-14 | Lifting device and hoisting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215479060U (en) |
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2021
- 2021-07-14 CN CN202121606547.8U patent/CN215479060U/en active Active
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