CN213569331U

CN213569331U - Lifting device

Info

Publication number: CN213569331U
Application number: CN202022588319.4U
Authority: CN
Inventors: 邓煜
Original assignee: Shenzhen Dafang Intelligent Technology Co ltd
Current assignee: Shenzhen Dafang Intelligent Technology Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-06-29
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a lifting device, which comprises a main lifting device and an auxiliary lifting device, wherein the main lifting device comprises a supporting component, a lifting component and a first driving component; the lifting assembly comprises a plurality of lifting arms and a plurality of chain assemblies; when the first driving component drives one lifting arm adjacent to the supporting component to move upwards, the rest lifting arms are synchronously unfolded under the action of the plurality of chain components; the auxiliary lifting device comprises an auxiliary lifting arm, a working platform and a second driving assembly; the lower end of the auxiliary lifting arm is connected with one end of a chain in the adjacent chain assembly. Adopt above-mentioned structural design's elevating gear, under first drive assembly's effect, order about a plurality of lifing arms in the elevating gear and expand in step, order about vice elevating gear then and rise or descend, can also adjust operation platform's position through vice elevating gear simultaneously for operation platform carries out the position change for elevating gear to this satisfies multiple construction demand.

Description

Lifting device

Technical Field

The utility model relates to a construction equipment technical field especially relates to a lifting device.

Background

The operation platform for the lifting mechanism under the prior art is mostly fastened with the lifting arm at the uppermost end of the lifting mechanism, and only the construction position of the operation platform can be changed along with the lifting of the lifting mechanism, so that the operation platform cannot be adjusted relative to the construction position of the lifting mechanism, and certain limitation is brought to the construction of the operation platform.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lifting device, this lifting device not only can be through the convenient lift that realizes the operation platform of main lifting device, but also can be through vice lifting device's setting for the operation platform carries out position adjustment relatively with main lifting device, satisfies multiple construction demand then.

To achieve the purpose, the utility model adopts the following technical proposal:

a lifting device, comprising:

the main lifting device comprises a supporting component erected on the mounting table, a lifting component in sliding fit with the supporting component, and a first driving component for driving the lifting component to move back and forth along the height direction of the supporting component; the lifting assembly comprises a plurality of lifting arms which are sequentially in sliding fit, and a plurality of chain assemblies arranged at the tops of the plurality of lifting arms; when the first driving component drives one lifting arm adjacent to the supporting component to move upwards, the rest lifting arms are synchronously unfolded under the action of the plurality of chain components;

the auxiliary lifting device comprises an auxiliary lifting arm in sliding fit with the adjacent lifting arm, a working platform in sliding fit with the auxiliary lifting arm, and a second driving assembly for driving the working platform to slide back and forth along the length direction of the auxiliary lifting arm; the lower end of the auxiliary lifting arm is connected with one end of a chain in the adjacent chain assembly.

The supporting assembly comprises a supporting arm vertically fastened on the mounting table, bearing seats erected at two ends of the supporting arm, a screw rod arranged between the two bearing seats, guide rods arranged on two sides of the screw rod, and a driving block which is in threaded connection with the screw rod and slides back and forth along the length direction of the guide rods.

The first driving assembly comprises a first motor arranged at the lower end of the supporting arm and a first speed reducer connected with the first motor, and the first speed reducer is connected with one end of the screw rod.

The lifting arm comprises a first lifting arm, a second lifting arm and a third lifting arm, wherein the second lifting arm is arranged in a reciprocating sliding mode along the length direction of the first lifting arm, and the third lifting arm is arranged in a sliding mode along the length direction of the second lifting arm.

The chain assembly comprises a first chain assembly pivoted to the first lifting arm, a second chain assembly pivoted to the second lifting arm, and a third chain assembly pivoted to the third lifting arm.

The first chain assembly comprises a first chain wheel assembly arranged at the top of the first lifting arm and a first chain meshed with the first chain wheel; the second chain assembly comprises a second chain wheel assembly arranged at the top of the second lifting arm and a second chain meshed with the second chain wheel; the third chain assembly includes a third sprocket assembly disposed at a top of the third lift arm and a third chain engaged with the third sprocket.

The lower bottom surface of the first lifting arm is fastened with the driving block; one end of the first chain is fastened with the supporting arm, and the other end of the first chain is fastened with the lower bottom surface of the second lifting arm; one end of the second chain is fastened with the first lifting arm, and the other end of the second chain is fastened with the lower bottom surface of the third lifting arm; one end of the third chain is fastened with the second lifting arm, and the other end of the third chain is fastened with the lower bottom surface of the auxiliary lifting arm.

The first chain wheel assembly, the second chain wheel assembly and the third chain wheel assembly respectively comprise a fixed shaft and a chain wheel which is coaxially and rotatably connected with the fixed shaft.

The second driving assembly comprises a second motor arranged at the lower end of the auxiliary lifting arm, a driven wheel pivoted to the upper end of the auxiliary lifting arm, a synchronous belt arranged between the second motor and the driven wheel, and an operation platform arranged along the length direction of the auxiliary lifting arm in a sliding mode and fastened with the synchronous belt.

The mounting table is arranged as a traction transport vehicle, the traction transport vehicle comprises a vehicle body, a supporting mechanism arranged on the periphery of the vehicle body, a plurality of sensors arranged on the periphery of the vehicle body and used for detecting the balance of the vehicle body, and an electric control device electrically connected with the sensors and used for controlling the folding, unfolding and lifting of the supporting mechanism.

The utility model has the advantages that: the utility model provides a lifting device, which comprises a main lifting device and an auxiliary lifting device, wherein the main lifting device comprises a supporting component erected on an installation platform, a lifting component in sliding fit with the supporting component, and a first driving component for driving the lifting component to reciprocate along the height direction of the supporting component; the lifting assembly comprises a plurality of lifting arms which are sequentially in sliding fit, and a plurality of chain assemblies arranged at the tops of the plurality of lifting arms; when the first driving component drives one lifting arm adjacent to the supporting component to move upwards, the rest lifting arms are synchronously unfolded under the action of the plurality of chain components; the auxiliary lifting device comprises an auxiliary lifting arm in sliding fit with the adjacent lifting arm, an operation platform in sliding fit with the auxiliary lifting arm, and a second driving assembly for driving the operation platform to slide back and forth along the length direction of the auxiliary lifting arm; the lower end of the auxiliary lifting arm is connected with one end of a chain in the adjacent chain assembly. Adopt above-mentioned structural design's elevating gear, under first drive assembly's effect, order about a plurality of lifing arms in the elevating gear and expand in step, order about vice elevating gear then and rise or descend, can also adjust operation platform's position through vice elevating gear simultaneously for operation platform carries out the position change for elevating gear to this satisfies multiple construction demand.

Drawings

Fig. 1 is an axonometric view of a lifting device according to the invention.

Fig. 2 is an isometric view of the support arm, first lift arm, and second support arm of fig. 1 in a semi-expanded state.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is an isometric view of the support assembly of fig. 1.

Fig. 5 is a schematic view of the lifting device of fig. 1 after being unfolded.

Fig. 6 is a schematic view of the lifting device of fig. 1 after being retracted.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 6, the present embodiment provides a lifting device, which includes a main lifting device 1 and an auxiliary lifting device 2, specifically, the main lifting device 1 includes a supporting component 11 erected on a mounting table, a lifting component 12 slidably engaged with the supporting component 11, and a first driving component 13 for driving the lifting component 12 to move back and forth along a height direction of the supporting component 11; the lifting component 12 comprises a plurality of lifting arms which are in sliding fit in sequence and a plurality of chain components which are used for being adjacent to the lifting arms and synchronously unfolded or sequentially folded, and one end of the chain component adjacent to the supporting component 11 is fastened with the supporting component 11.

Preferably, the plurality of chain assemblies in this embodiment are respectively installed on top of the plurality of lifting arms, and two ends of a chain in the chain assembly are respectively connected to the lifting arms on two sides, or the lifting arm and the supporting assembly 11, so that when the first driving assembly drives one lifting arm adjacent to the supporting assembly to move upwards, the remaining lifting arms are respectively and synchronously unfolded under the action of the plurality of chain assemblies.

More specifically, the supporting assembly 11 in this embodiment includes a supporting arm 111 vertically fastened to the mounting table, bearing blocks 112 erected at two ends of the supporting arm 111, a screw 113 disposed between the two bearing blocks 112, guide rods 114 disposed at two sides of the screw 113, and a driving block 115 threadedly connected to the screw 113 and slidably disposed along a length direction of the guide rods 114, so that the driving block 115 is driven to reciprocate along the length direction of the screw 113 by rotation of the screw 113.

Preferably, the driving block 115 in this embodiment is fastened to the lower bottom surface of the lifting arm adjacent to the supporting arm 111, and when the driving block 115 moves upward along the screw rod, the adjacent lifting arm is driven to move upward, and then the remaining lifting arms are driven to synchronously unfold by the chain assembly.

Preferably, the first driving assembly 13 for driving the screw 113 to rotate in the present embodiment includes a first motor 131 disposed at the lower end of the supporting arm 111, and a first speed reducer 132 connected to the first motor 131, wherein the first speed reducer 132 is connected to one end of the screw 113.

Furthermore, the auxiliary lifting device 2 in this embodiment is connected to the lifting arm in a sliding manner, the auxiliary lifting device 2 is far away from one side of the supporting component 11, the auxiliary lifting device 2 includes an auxiliary lifting arm 21 in sliding fit with the lifting arm, a working platform 22 in sliding fit with the auxiliary lifting arm 21, and a second driving component for driving the working platform 22 to slide back and forth along the length direction of the auxiliary lifting arm 21, the second driving component includes a second motor 23 disposed at the lower end of the auxiliary lifting arm 21, a driven wheel 24 pivoted to the upper end of the auxiliary lifting arm 21, a synchronous belt 25 disposed between the second motor 23 and the driven wheel 24, and a working platform 22 disposed along the length direction of the auxiliary lifting arm 21 in a sliding manner and fastened to the synchronous belt 25. With this structural design, can make work platform 22 along vice lifing arm 21 direction of height up-and-down motion, because vice lifing arm 21 goes up and down along with lifting unit 12 again, consequently, after lifting unit 12 expandes the predetermined height, can drive work platform 22 up-and-down motion through second motor 23 to this makes work platform 22 carry out position control under lifting unit 12's different height, with this different construction demands of satisfying.

More specifically, the lift arm in this embodiment preferably includes a first lift arm 121, a second lift arm 122 slidably disposed back and forth along a longitudinal direction of the first lift arm 121, and a third lift arm 123 slidably disposed along a longitudinal direction of the second lift arm 122, in order to facilitate assembly and connection among the first lift arm 121, the second lift arm 122, and the third lift arm 123, the first lift arm 121, the second lift arm 122, and the third lift arm 123 are all integrally provided with a long groove along a length for sliding with each other, and preferably, the first lift arm 121, the second lift arm 122, and the third lift arm 123 may be integrally formed by extrusion molding using an aluminum extrusion die.

In order to facilitate the simultaneous expansion and contraction of the first, second and third lifting

arms

121, 122 and 123, the chain assemblies in this embodiment include a first chain assembly 124 pivoted to the first lifting arm 121, a second chain assembly 125 pivoted to the second lifting arm 122 and a third chain assembly 126 pivoted to the third lifting arm 123.

Specifically, the first chain assembly 124 includes a first sprocket assembly disposed on the top of the first lifting arm 121, and a first chain 1241 engaged with the first sprocket; the second chain assembly 125 includes a second sprocket assembly disposed on top of the second lifting arm 122, and a second chain 1251 engaged with the second sprocket; the third chain assembly 126 includes a third sprocket assembly disposed on top of the third lifting arm 123 and a third chain 1261 engaged with the third sprocket. Preferably, the first sprocket assembly, the second sprocket assembly and the third sprocket assembly each include a fixed shaft and a sprocket coaxially and rotatably connected to the fixed shaft.

Furthermore, in order to facilitate the synchronous unfolding or folding of the first lifting arm 121, the second lifting arm 122 and the third lifting arm 123, the lower bottom surface of the first lifting arm 121 in this embodiment is fastened to the driving block 115; one end of the first chain 1241 is fastened to the support arm 111, and the other end of the first chain 1241 is fastened to the lower bottom surface of the second lifting arm 122; one end of the second chain 1251 is fastened to the first lifting arm 121, and the other end of the second chain 1251 is fastened to a lower bottom surface of the third lifting arm 123; one end of the third chain 1261 is fastened to the second lifting arm 122, and the other end of the third chain 1261 is fastened to a lower bottom surface of the sub lifting arm 21.

In order to further facilitate the arrangement of the second chain 1251 and the third chain 1261, it is preferable that one end of the second chain 1251 is fastened to a fixed shaft at the top of the first lifting arm 121, and one end of the third chain 1261 is fastened to a fixed shaft at the top of the second lifting arm 122.

With the lifting assembly 12 designed by the above structure, when the first motor 131 drives the screw 113 to rotate forward, the driving block 115 drives the first lifting arm 121 to move upward along the height direction of the supporting arm 111 under the action of the screw 113, and at this time, the second lifting arm 122 drives the second lifting arm 122 to move upward under the action of the first chain 1241, and similarly, the third lifting arm 123 moves upward under the action of the second chain 1251, and the sub-lifting arm 21 moves upward under the action of the third chain 1261, so that the first lifting arm 121, the second lifting arm 122, and the third lifting arm 123 sequentially expand upward; on the contrary, when the first motor 131 drives the screw 113 to rotate reversely, and the driving block 115 drives the first lifting arm 121 to move downwards under the action of the screw 113, the second lifting arm 122, the third lifting arm 123 and the sub-lifting arm 21 are sequentially lowered and retracted under the action of gravity.

Furthermore, in this embodiment, the liftable operation platform 22 is slidably disposed on one side of the auxiliary lifting arm 21 along the height direction, so that the operation platform 22 can flexibly move in different lifting heights of the lifting assembly 12, thereby providing great convenience for the construction of the operation platform, and meanwhile, the frequent start of the first motor 131 can be effectively avoided, and the power consumption of the first motor 131 can be effectively reduced. It should be noted that the lifting assembly 12 in this embodiment is not limited to the first lifting arm 121, the second lifting arm 122, and the third lifting arm 123, and can be expanded according to the construction requirement and the reliability requirement.

Furthermore, the mounting table in this embodiment is configured as a traction transport vehicle, and the traction transport vehicle includes a vehicle body 31, a supporting mechanism 32 disposed on the periphery of the vehicle body 31, a plurality of sensors disposed on the vehicle body 31 for detecting the balance of the vehicle body 31, and an electric control device electrically connected to the plurality of sensors for controlling the folding, unfolding, lifting and lowering of the supporting mechanism 32. Preferably, the supporting mechanism 32 in this embodiment includes a folding arm 321 connected to the vehicle body 31 in a horizontal rotating manner, and a supporting member 322 vertically disposed at one end of the folding arm 321 and capable of ascending and descending, wherein the folding arm 321 and the supporting member 322 are both driven by a motor to realize folding, unfolding, and up-and-down movement. Therefore, the balance of the vehicle body 31 can be automatically adjusted conveniently and flexibly, and better support is provided for stable work of the lifting device and the auxiliary lifting device 2. The specific structural design and the electric control design of the traction transport vehicle are already disclosed in the related art, and are not described in detail herein.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A lifting device, comprising:

2. The lifting device as claimed in claim 1, wherein the support assembly comprises a support arm vertically fastened to the mounting platform, bearing seats erected at two ends of the support arm, a lead screw disposed between the bearing seats, guide rods disposed at two sides of the lead screw, and a driving block screwed to the lead screw and slidably disposed back and forth along a length direction of the guide rods.

3. The lifting device as claimed in claim 2, wherein the first driving assembly includes a first motor disposed at the lower end of the support arm, and a first speed reducer connected to the first motor, the first speed reducer being connected to one end of the lead screw.

4. The lifting device as claimed in claim 2, wherein the lifting arm comprises a first lifting arm, a second lifting arm slidably disposed back and forth along a length of the first lifting arm, and a third lifting arm slidably disposed along a length of the second lifting arm.

5. A lifting device as claimed in claim 4, wherein the chain assemblies include a first chain assembly pivotally connected to the first lifting arm, a second chain assembly pivotally connected to the second lifting arm, and a third chain assembly pivotally connected to the third lifting arm.

6. The lift apparatus of claim 5, wherein the first chain assembly comprises a first sprocket assembly disposed at a top portion of the first lift arm, and a first chain engaged with the first sprocket; the second chain assembly comprises a second chain wheel assembly arranged at the top of the second lifting arm and a second chain meshed with the second chain wheel; the third chain assembly includes a third sprocket assembly disposed at a top of the third lift arm and a third chain engaged with the third sprocket.

7. A lifting device as claimed in claim 6, characterized in that the lower bottom surface of the first lifting arm is fastened to the drive block; one end of the first chain is fastened with the supporting arm, and the other end of the first chain is fastened with the lower bottom surface of the second lifting arm; one end of the second chain is fastened with the first lifting arm, and the other end of the second chain is fastened with the lower bottom surface of the third lifting arm; one end of the third chain is fastened with the second lifting arm, and the other end of the third chain is fastened with the lower bottom surface of the auxiliary lifting arm.

8. The lift device of claim 6, wherein the first sprocket assembly, the second sprocket assembly and the third sprocket assembly each comprise a stationary shaft and a sprocket coaxially rotatably coupled to the stationary shaft.

9. The lifting device as claimed in claim 1, wherein the second driving assembly comprises a second motor disposed at a lower end of the auxiliary lifting arm, a driven wheel pivoted to an upper end of the auxiliary lifting arm, a synchronous belt disposed between the second motor and the driven wheel, and the work platform slidably disposed along a length direction of the auxiliary lifting arm and fastened to the synchronous belt.

10. The lifting device as claimed in claim 1, wherein the mounting platform is configured as a towing vehicle, and the towing vehicle includes a vehicle body, a supporting mechanism disposed on the periphery of the vehicle body, a plurality of sensors disposed on the vehicle body for detecting the balance of the vehicle body, and an electric control device electrically connected to the plurality of sensors for controlling the folding, unfolding and lifting of the supporting mechanism.