CN221141022U - Lifting system and conveying line - Google Patents

Abstract

The application relates to a lifting system and a conveying line, wherein the lifting system comprises: the driving device comprises a driving assembly and more than two transmission assemblies, wherein the more than two transmission assemblies are distributed at intervals around at least part of the driving assembly, the driving assembly comprises a driving wheel group, the transmission assemblies comprise driven wheels and an executing piece connected with the driven wheels, and the driven wheels of each transmission assembly are respectively in transmission fit with the driving wheel group; the bearing assembly is connected with the executing pieces of each transmission assembly, and each executing piece can synchronously move along with the driven wheel and drive the bearing assembly to ascend or descend along the first direction. The lifting system provided by the application can reduce energy loss and improve the energy utilization rate.

Description

Lifting system and conveying line

Technical Field

The application relates to the technical field of conveying, in particular to a lifting system and a conveying line.

Background

The lifting system can be used for lifting or descending the goods so as to adjust the height of the goods.

However, in the lifting system in the related art, the transmission structure of the transmission assembly is complex, the transmission efficiency is low, and the energy loss is large.

Disclosure of utility model

The embodiment of the application provides a lifting system and a conveying line, wherein the lifting system can reduce energy loss in the self transmission process and improve the energy utilization rate.

In a first aspect, an embodiment of the present application provides a lifting system, including: the driving device comprises a driving assembly and more than two transmission assemblies, wherein the more than two transmission assemblies are distributed at intervals around at least part of the driving assembly, the driving assembly comprises a driving wheel group, the transmission assemblies comprise driven wheels and an executing piece connected with the driven wheels, and the driven wheels of each transmission assembly are respectively in transmission fit with the driving wheel group; the bearing assembly is connected with the executing pieces of each transmission assembly, and each executing piece can synchronously move along with the driven wheel and drive the bearing assembly to ascend or descend along the first direction.

In some embodiments, the drive assembly further comprises a connecting shaft extending in a second direction, the first direction intersecting the second direction; each end of the connecting shaft in the second direction is respectively provided with an executing piece, and the driven wheel is sleeved on the connecting shaft and fixedly connected with the connecting shaft.

In some embodiments, the transmission assembly further comprises a transmission member, the transmission member is wound around the driving wheel set and the driven wheel, and the driving wheel set drives the driven wheel to rotate through the transmission member.

In some embodiments, the drive wheel set comprises a plurality of coaxially disposed and fixedly connected drive wheels, the transfer member comprises one of a chain and a belt, and each drive wheel is in driving engagement with one of the driven wheels via one of the chain and the belt.

In some embodiments, the driving wheel group comprises two driving wheels, the driving wheels are arranged along the second direction, the number of the transmission assemblies is two, each driving wheel is connected with a transmission piece of each transmission assembly, the two transmission pieces are arranged in parallel along the third direction, the third direction is intersected with the second direction and the first direction, and the driving wheels can drive two connecting shafts of the transmission assemblies to rotate.

In some embodiments, the executing member is an eccentric wheel, the bearing assembly is located above each eccentric wheel, and the driving assembly drives the eccentric wheel to rotate so as to drive the bearing assembly to ascend or descend along the first direction.

In some embodiments, the lifting system further comprises: the sensing piece is fixedly connected with the bearing assembly; the supporting frame is enclosed to form a first accommodating cavity, at least part of the driving device is positioned in the first accommodating cavity, the executing piece extends out of the supporting frame, and the bearing assembly is covered on the supporting frame and is abutted with the executing piece; and the sensor component is fixedly connected with the outer wall of the supporting frame and is used for sensing the position of the sensing piece.

In some embodiments, the carrier assembly comprises: the lifting frame is covered on the supporting frame, one side of the lifting frame facing the supporting frame comprises a second accommodating cavity, part of the driving device is positioned in the second accommodating cavity, and the executing piece is positioned in the second accommodating cavity and is abutted with the lifting frame; and the conveying mechanism is positioned at one side of the lifting frame, which is away from the supporting frame, and the lifting frame is connected between the executing piece and the conveying mechanism.

In some embodiments, the support frame comprises: the frame body is enclosed to form a first accommodating cavity; extension portion sets up in the both sides of frame body along the first direction in pairs, along the second direction, and extension portion's length is greater than frame body's length, and the executive component is located between second accommodation chamber and the extension portion, and extension portion includes the extension portion that sets up along the first direction, and sensor assembly installs in extension portion, and the third direction is the same with the direction that conveying mechanism goes up and down.

In some embodiments, in the second direction, the lifting frame is the same length as the frame body, and the sensing element is located on an outer wall of the lifting frame adjacent to the extension.

In some embodiments, a sensor assembly includes: a first sensor connected to one of the extensions; the second sensor and the third sensor are connected with the other extension part, orthographic projections of the second sensor, the first sensor and the third sensor are sequentially arranged along the first direction, the second sensor is configured to sense the ascending maximum preset position of the bearing assembly, the first sensor is configured to sense the descending maximum preset position of the bearing assembly, and the third sensor is configured to sense the descending maximum protection position of the bearing assembly.

In a second aspect, an embodiment of the application proposes a conveyor line comprising a lifting system according to any one of the preceding first aspects.

According to the lifting system provided by the embodiment of the application, through the arrangement that the driving assembly is connected with more than two driving assemblies, firstly, the transmission mode of the driving assemblies is improved, and the energy loss of the driving assemblies in the working process is reduced and the energy utilization rate is improved by utilizing a parallel transmission chain structure; secondly, the setting of the switching structure between drive assembly and the drive assembly has been reduced, and both directly realize the connection, have simplified the structure, practice thrift installation cost.

According to the conveying line provided by the embodiment of the application, through the arrangement of the transmission component in the lifting system, the running cost of the conveying line can be reduced, the conveying mode of the transmission chain is simplified, and the energy utilization rate of the conveying line is improved.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

FIG. 1 is an exploded view of a portion of the structure of an embodiment of a lift system in accordance with an embodiment of the present application;

FIG. 2 is an exploded view of an embodiment of a lift system according to an embodiment of the present application;

fig. 3 is a schematic side view of an embodiment of a lifting system according to an embodiment of the present application.

Reference numerals illustrate:

10-a lifting system; x1-a first direction; x2-a second direction; x3-third direction;

100-driving means;

110-a drive assembly; 111-driving a wheel set; 1111-a driving wheel;

120-a transmission assembly; 121-driven wheel; 122-an actuator; 123-connecting shaft; 124-conveyor;

200-a carrier assembly; 210-lifting frame; 211-a second accommodation chamber; 220-a conveying mechanism;

300-sensing piece;

400-supporting frames; 410-a frame body; 411-a first accommodation chamber; 412-extensions; 4121-extension;

500-sensor assembly; 510-a first sensor; 520-a second sensor; 530-a third sensor.

In the drawings, like parts are designated with like reference numerals. The figures are not drawn to scale.

Detailed Description

Features and exemplary embodiments of various aspects of the application are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present application; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The directional terms appearing in the following description are those directions shown in the drawings and do not limit the specific structure of the application. In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected. The specific meaning of the above terms in the present application can be understood as appropriate by those of ordinary skill in the art.

In the related art, a lifting conveyor is used to lift and lower goods. However, the transmission structure of the transmission assembly in the elevating conveyor is complex, the transmission efficiency is low, and the energy loss is large.

Based on the above consideration, in order to solve the problems of complex transmission structure, low transmission efficiency and large energy loss of a transmission assembly in a lifting conveyor, a lifting system and a conveying line are designed.

Referring to fig. 1 to 2, fig. 1 is an exploded view of a part of a structure of a lifting system according to an embodiment of the present application, and fig. 2 is an exploded view of a lifting system according to an embodiment of the present application.

The embodiment of the application provides a lifting system 10, wherein the lifting system 10 comprises a driving device 100 and a bearing assembly 200. The driving device 100 comprises a driving assembly 110 and more than two transmission assemblies 120, wherein the more than two transmission assemblies 120 are distributed at intervals around at least part of the driving assembly 110, the driving assembly 110 comprises a driving wheel set 111, the transmission assemblies 120 comprise driven wheels 121 and an executing piece 122 connected with the driven wheels 121, and the driven wheels 121 of each transmission assembly 120 are respectively in transmission fit with the driving wheel set 111. The carrying assembly 200 is connected with the executing piece 122 of each transmission assembly 120, and each executing piece 122 can synchronously move along with the driven wheel 121 and drive the carrying assembly 200 to ascend or descend along the first direction X1.

It will be appreciated that more than two transmission assemblies 120 are spaced around at least a portion of the driving assembly 110, the transmission assemblies 120 are separated from each other, and for example, the number of driving assemblies 110 may be one, the number of transmission assemblies 120 may be two, and two transmission assemblies 120 are synchronously driven to move simultaneously by one driving assembly 110.

The number of drive assemblies 120 includes, but is not limited to, two, three, etc.

More than two transmission assemblies 120 may be spaced in parallel about the drive assembly 110.

The number of driving wheel sets 111 may be one or more.

The driving engagement of the driven wheel 121 with the driving wheel set 111 includes, but is not limited to, gear engagement, drive belt engagement with the driving wheel set 111 while wrapping around the driven wheel 121, and the like.

The actuator 122 may be fixedly connected to the driven wheel 121.

The actuator 122 includes, but is not limited to, an eccentric structure or a lifter plate structure having a stop, and illustratively, when the actuator 122 is a lifter plate structure having a recess, the lifter plate is in a lowered state when the recess of the lifter plate is stopped by the drive assembly 120, and when the recess of the lifter plate is not stopped by the drive assembly 120, the lifter plate is in a raised state.

According to the lifting system 10 provided by the embodiment of the application, through the arrangement that the driving assembly 110 is connected with more than two transmission assemblies 120, firstly, the transmission mode of the transmission assemblies 120 and the driving assembly 110 is improved, and the energy loss of the transmission assemblies 120 in the working process is reduced and the energy utilization rate is improved by utilizing a parallel transmission chain structure; secondly, the arrangement of the switching structure between the driving assembly 110 and the transmission assembly 120 is reduced, the driving assembly and the transmission assembly are directly connected, the structure is simplified, and the installation cost is saved.

In some embodiments, the transmission assembly 120 further includes a connecting shaft 123, the connecting shaft 123 extending along a second direction X2, the first direction X1 intersecting the second direction X2. The connecting shaft 123 is provided with an actuator 122 at each end of the second direction X2, and the driven wheel 121 is sleeved on the connecting shaft 123 and fixedly connected with the connecting shaft 123.

The length of the connecting shaft 123 may be adjusted according to practical situations, when the area of the bearing assembly 200 is larger, the length of the connecting shaft 123 may be larger, and when the area of the bearing assembly 200 is smaller, the length of the connecting shaft 123 may be smaller.

The angle between the first direction X1 and the second direction X2 includes, but is not limited to, 90 degrees, 70 degrees, 100 degrees, etc.

According to the lifting system 10 provided by the embodiment of the application, the driven wheel 121 and the executing piece 122 are connected through the arrangement of the connecting shaft 123, so that the driving force of the driving assembly 110 is transmitted to the executing piece 122 along the connecting shaft 123, and the structure is more compact.

In some embodiments, the transmission assembly 120 further includes a transmission member 124, where the transmission member 124 is disposed around the driving wheel set 111 and the driven wheel 121, and the driving wheel set 111 drives the driven wheel 121 to rotate through the transmission member 124.

Conveyor 124 includes, but is not limited to, a chain, a belt, etc.

According to the lifting system 10 provided by the embodiment of the application, the driven wheel 121 is connected with the driving wheel set 111 through the arrangement of the conveying piece 124, so that the driving wheel set 111 is connected with the driven wheel 121, and the driving force at the driving wheel set 111 is transmitted to the driven wheel 121 through the conveying piece 124.

In some embodiments, the drive pulley set 111 includes a plurality of coaxially disposed and fixedly connected drive pulleys 1111, and the conveyor 124 includes one of a chain and a belt, each drive pulley 1111 being in driving engagement with one of the driven pulleys 121 via one of the chain and the belt.

The number of driving wheels 1111 may be two, three, or even more.

The conveying member 124 of the conveying assembly may include one of a chain and a belt, and a suitable structural form of the conveying member 124 may be selected according to practical circumstances.

The drive wheel 1111 includes, but is not limited to, a drive sprocket, a drive gear, and the like.

The lifting system 10 provided by the embodiment of the application has the advantages that the structure of the driving device 100 is easy to realize and the practicability is high through the specific structure arrangement of the driving wheel 1111, the conveying member 124 and the driven wheel 121.

In some embodiments, the driving wheel set 111 includes two driving wheels 1111, the driving wheels 1111 are arranged along the second direction X2, the number of the transmission assemblies 120 is two, each driving wheel 1111 is connected to the conveying member 124 of each transmission assembly 120, the two conveying members 124 are arranged in parallel along the third direction X3, the third direction X3 intersects the second direction X2 and the first direction X1, and the driving wheels 1111 can drive the two connecting shafts 123 of the transmission assemblies 120 to rotate.

Optionally, the included angle between the first direction X1, the second direction X2, and the third direction X3 is 90 degrees.

The two transfer members 124 are arranged offset.

According to the lifting system 10 provided by the embodiment of the application, the driving wheel set 111 comprises the arrangement of two driving wheels 1111 and the arrangement of two transmission components 120, so that the lifting system can be better adapted to the structure of a common bearing component 200, and has higher applicability.

In some embodiments, the executing members 122 are eccentric wheels, the bearing assembly 200 is located above each eccentric wheel, and the driving assembly 110 drives the eccentric wheels to rotate so as to drive the bearing assembly 200 to ascend or descend along the first direction X1.

The number of the eccentric wheels can be multiple, and synchronous rotation of the eccentric wheels realizes synchronous lifting of all parts of the bearing assembly 200.

According to the lifting system 10 provided by the embodiment of the application, the executing piece 122 is an eccentric wheel, so that the bearing assembly 200 can be driven to realize lifting movement along the first direction X1.

In some embodiments, the lift system 10 further includes a sensing element 300, a support frame 400, and a sensor assembly 500. The sensing element 300 is fixedly connected with the bearing element 200, the supporting frame 400 encloses to form a first accommodating cavity 411, at least part of the driving device 100 is positioned in the first accommodating cavity 411, the executing element 122 extends out of the supporting frame 400, the bearing element 200 is covered on the supporting frame 400 and is abutted to the executing element 122, the sensor element 500 is fixedly connected with the outer wall of the supporting frame 400, and the sensor element 500 is used for sensing the position of the sensing element 300.

The connection manner of the sensing element 300 and the bearing assembly 200 includes, but is not limited to, bolting, riveting, welding, etc.

The shape of the first receiving cavity 411 includes, but is not limited to, a rectangular parallelepiped shape, a square shape, a cylindrical shape, etc.

The manner of attachment of the sensor assembly 500 to the support frame 400 includes, but is not limited to, bolting, riveting, welding, and the like.

The sensor assembly 500 may include a plurality of sensors for sensing different positions of the carrier assembly 200.

According to the lifting system 10 provided by the embodiment of the application, through the arrangement of the sensing piece 300 and the sensor assembly 500, firstly, the position of the bearing assembly 200 can be monitored, so that the position of the bearing assembly 200 can be known in time, and the safety of the bearing assembly 200 is improved; secondly, the arrangement of the outer wall fixed connection of the sensor assembly 500 and the support frame 400 is convenient for realizing the maintenance of the sensor assembly 500, and when the sensor assembly 500 is damaged or needs to be replaced, the maintenance and the replacement of the sensor assembly 500 can be realized without disassembling the support frame 400.

In some embodiments, the carriage assembly 200 includes a lifting frame 210, a transport mechanism 220. The lifting frame 210 is covered on the supporting frame 400, one side of the lifting frame 210 facing the supporting frame 400 comprises a second accommodating cavity 211, a part of the driving device 100 is located in the second accommodating cavity 211, and the executing piece 122 is located in the second accommodating cavity 211 and is abutted against the lifting frame 210. The conveying mechanism 220 is located at a side of the lifting frame 210 away from the supporting frame 400, and the conveying mechanism 220 is connected between the actuator 122 and the lifting frame 210.

The shape of the second accommodating chamber 211 includes, but is not limited to, a rectangular parallelepiped shape, a square shape, a cylindrical shape, etc., and alternatively, the shape of both the second accommodating chamber 211 and the first accommodating chamber 411 is a rectangular parallelepiped shape.

The conveyor mechanism 220 includes a plurality of rollers for effecting the conveyance of the cargo.

According to the lifting system 10 provided by the embodiment of the application, the driving device 100 can be enclosed and protected by the arrangement of the first accommodating cavity 411 and the second accommodating cavity 211, the driving device 100 is prevented from being damaged, the lifting frame 210 is abutted against the executing piece 122, the lifting movement of the conveying mechanism 220 along the first direction X1 is realized, the stable lifting of the lifting mechanism is facilitated, and the stability is enhanced.

In some embodiments, the support frame 400 includes a frame body 410, an extension 412. The frame body 410 encloses a first accommodating cavity 411. The extension parts 412 are disposed on two sides of the frame body 410 along the first direction X1 in pairs, the length of the extension parts 412 is greater than the length of the frame body 410 along the second direction X2, the actuator 122 is located between the second accommodating cavity 211 and the extension parts 412, the extension parts 412 include extension parts 4121 disposed along the third direction X3, the sensor assembly 500 is mounted on the extension parts 4121, and the third direction X3 is the same as the lifting direction of the conveying mechanism 220.

The extension portion 412 includes, but is not limited to, a plate-like structure, a groove-like structure, etc., extending along the first direction X1 of the frame body 410.

Optionally, the extension 412 comprises a plate-like structure provided with oblong holes.

According to the lifting system 10 provided by the embodiment of the application, through the arrangement of the extension part 412, the extension part 412 and the lifting frame 210 are enclosed together to form the second accommodating cavity 211, the extension part 412 provides a space for supporting the executing piece 122, and the arrangement of the extension part 4121 can realize the installation of the sensor assembly 500, so that the assembly of the sensor assembly 500 is facilitated.

In some embodiments, along the second direction X2, the lifting frame 210 is the same length as the frame body 410, and the sensing element 300 is located near the outer wall of the extending portion 4121 of the lifting frame 210.

The sensing member 300 may be detachably coupled to the lifting frame 210.

The lifting system 10 provided by the embodiment of the application facilitates the interaction between the sensing element 300 and the sensor assembly 500 by the sensing element 300 being located on the lifting frame 210 near the outer wall of the extension portion 4121.

In some embodiments, the sensor assembly 500 includes a first sensor 510, a second sensor 520, and a third sensor 530. The first sensor 510 is connected to one of the extensions 412. The second sensor 520 and the third sensor 530 are connected to the other extension portion 412, and the second sensor 520, the first sensor 510, and the orthographic projection of the third sensor 530 are sequentially arranged along the first direction X1, the second sensor 520 is configured to sense a rising maximum preset position of the carrier assembly 200, the first sensor 510 is configured to sense a falling maximum preset position of the carrier assembly 200, and the third sensor 530 is configured to sense a falling maximum protection position of the carrier assembly 200.

The first sensor 510, the second sensor 520, and the third sensor 530 may be the same type of sensor, or may be different types of sensors, such as a photoelectric sensor, a capacitive sensor, and a position sensor.

According to the lifting system 10 provided by the embodiment of the application, through the arrangement of the first sensor 510, the second sensor 520 and the third sensor 530, the bearing assemblies 200 at different positions can be sensed and monitored, and the level of intelligence is improved.

An embodiment of the present application contemplates a conveyor line comprising a lift system 10 of any of the foregoing.

The lift system 10 includes a drive 100 and a carriage assembly 200. The driving device 100 comprises a driving assembly 110 and more than two transmission assemblies 120, wherein the more than two transmission assemblies 120 are distributed at intervals around at least part of the driving assembly 110, the driving assembly 110 comprises a driving wheel set 111, the transmission assemblies 120 comprise driven wheels 121 and an executing piece 122 connected with the driven wheels 121, and the driven wheels 121 of each transmission assembly 120 are respectively in transmission fit with the driving wheel set 111. The carrying assembly 200 is connected with the executing piece 122 of each transmission assembly 120, and each executing piece 122 can synchronously move along with the driven wheel 121 and drive the carrying assembly 200 to ascend or descend along the first direction X1.

According to the conveying line provided by the embodiment of the application, through the arrangement of the transmission assembly 120 in the lifting system 10, the running cost of the conveying line can be reduced, the conveying mode of a transmission chain is simplified, and the energy utilization rate of the conveying line is improved.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (12)

1. A lifting system, comprising:

The driving device comprises a driving assembly and more than two transmission assemblies, wherein the more than two transmission assemblies are distributed at intervals around at least part of the driving assembly, the driving assembly comprises a driving wheel group, the transmission assemblies comprise driven wheels and execution pieces connected with the driven wheels, and the driven wheels of each transmission assembly are respectively in transmission fit with the driving wheel group;

And the bearing assembly is connected with the executing piece of each transmission assembly, and each executing piece can synchronously move along with the driven wheel and drive the bearing assembly to ascend or descend along a first direction.

2. The lift system of claim 1, wherein the drive assembly further comprises a connecting shaft extending in a second direction, the first direction intersecting the second direction;

each end of the connecting shaft in the second direction is respectively provided with the executing piece, and the driven wheel is sleeved on the connecting shaft and fixedly connected with the connecting shaft.

3. The lifting system according to claim 1 or 2, wherein the transmission assembly further comprises a transmission member, the transmission member is wound around the driving wheel set and the driven wheel, and the driving wheel set drives the driven wheel to rotate through the transmission member.

4. A lifting system as claimed in claim 3, wherein the drive wheel set comprises a plurality of coaxially disposed and fixedly connected drive wheels, the transfer member comprising one of a chain and a belt, each drive wheel being in driving engagement with one of the driven wheels via one of the chain and the belt.

5. The lift system of claim 4 wherein the drive wheel set includes two drive wheels, the drive wheels being arranged in a second direction,

The number of the transmission components is two, each driving wheel is connected with each transmission component, the two transmission components are arranged in parallel along a third direction, the third direction is intersected with the second direction and the first direction, and the driving wheels can drive two connecting shafts of the transmission components to rotate.

6. The lift system of claim 1, wherein the actuators are eccentric wheels, the carrier assembly is located above each of the eccentric wheels, and the driving assembly drives the eccentric wheels to rotate so as to drive the carrier assembly to lift or lower in the first direction.

7. The lift system of claim 1, wherein the lift system further comprises:

the sensing piece is fixedly connected with the bearing assembly;

the support frame is enclosed to form a first accommodating cavity, at least part of the driving device is positioned in the first accommodating cavity, the executing piece extends out of the support frame, and the bearing assembly is covered on the support frame and is abutted with the executing piece;

The sensor assembly is fixedly connected with the outer wall of the supporting frame and used for sensing the position of the sensing assembly.

8. The lift system of claim 7, wherein the load bearing assembly comprises:

The lifting frame is covered on the supporting frame, one side of the lifting frame facing the supporting frame comprises a second accommodating cavity, part of the driving device is positioned in the second accommodating cavity, and the executing piece is positioned in the second accommodating cavity and is abutted to the lifting frame;

And the conveying mechanism is positioned at one side of the lifting frame, which is away from the supporting frame, and the lifting frame is connected between the executing piece and the conveying mechanism.

9. The lift system of claim 8, wherein the support frame comprises:

The frame body is enclosed to form the first accommodating cavity;

extension portion set up in pairs in the frame body is followed the both sides of first direction, along the second direction, the length of extension portion is greater than the length of frame body, the execution spare is located the second holds the chamber with between the extension portion, the extension portion includes the extension portion that sets up along the first direction, sensor assembly install in the extension portion, the third direction with the direction that conveying mechanism goes up and down is the same.

10. The lift system of claim 9, wherein in the second direction, the lift frame is the same length as the frame body, and the sensing element is located on an outer wall of the lift frame proximate the extension.

11. The lift system of claim 9, wherein the sensor assembly comprises:

A first sensor connected to one of the extensions;

The second sensor and the third sensor are connected with the other extension part, the second sensor, the first sensor and the orthographic projection of the third sensor are sequentially arranged along the first direction, the second sensor is configured to sense the ascending maximum preset position of the bearing assembly, the first sensor is configured to sense the descending maximum preset position of the bearing assembly, and the third sensor is configured to sense the descending maximum protection position of the bearing assembly.

12. A conveyor line comprising a lifting system according to any one of claims 1 to 11.