Mechanical screw lift

A lifting device and mechanical technology, applied in the field of mechanical lifting devices, can solve the problems of small lifting stroke, inability to achieve standardization and modularization, and achieve synchronous lifting, strong lifting performance, and improved stability. Effect

Active Publication Date: 2018-10-12
QINGDAO CIMC REEFER TRAILER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the technical problem that the lifting stroke of the lifting device in the prior art is relatively small and standardization and modularization cannot be realized

Method used

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  • Mechanical screw lift
  • Mechanical screw lift
  • Mechanical screw lift

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0028] The present invention proposes a mechanical screw lifting device for lifting objects, for example, it is used in a transfer car, and is used as a lifting device of the transfer car to lift the compartment of the transfer car.

[0029] Such as figure 1 As shown, in this embodiment, each mechanical screw lifting device includes a base 1000 and a lifting part 1001 , and the lifting part 1001 is telescopically arranged on the base 1000 .

[0030] Such as Figure 1 to Figure 4 As shown, in this embodiment, the base 1000 has a cylindrical accommodating space 1000a. The inner wall of the base 1000 defining the accommodating space 1000a is provided with threads. A rotating shaft 1002 that can be driven to rotate is provided at the center of the bottom of the base 1000 . The lifting part 1001 is cylindrical, and the rotating shaft 1002 extends into the lifting part 1001 and can drive it to rotate. That is, when the lifting part 1001 rotates relative to the base 1000 , the li...

Embodiment approach 2

[0035] Such as Figure 5 and Figure 6 As shown, the present invention proposes another embodiment of the mechanical screw lifting device. In this embodiment, each mechanical screw lifting device further includes a secondary lifting part 1005 , which is cylindrical and disposed in the annular accommodating space 1001 c of the lifting part 1001 . The outer wall of the secondary lifting part 1005 is provided with a screw thread that is threadedly engaged with the inner wall of the main body 1001a of the lifting part 1001 . Moreover, the inner wall of the secondary lifting part 1005 is provided with threads opposite to the thread direction of its outer wall, and a second end lifting part 1003' is arranged inside it, and the outer wall of the second end lifting part 1003' is provided with the secondary lifting part 1003'. The screw thread of the inner wall of the lifting part 1005 fits.

[0036] In addition, the number of secondary lifting parts 1005 in this embodiment is not u...

Embodiment approach 3

[0039] Such as Figure 7 As shown, another embodiment of the mechanical screw lifting device proposed by the present invention, its main structure is basically the same as the above embodiment. However, in this embodiment, the lifting part 1001 includes a main body 1001g and a rotating shaft sleeve 1001h fixed on the bottom of the main body 1001g, the rotating shaft 1002 is provided with threads, and the inner wall of the rotating shaft sleeve 1001h is provided with matching threads, and the rotating shaft 1002 passes through The rotating shaft sleeve 1001h has a stop portion 1002c fixed on its upper end. Specifically, in this embodiment, the structure of the rotating shaft sleeve 1001h can be realized in various ways, for example, a nut is used to fix the bottom end of the body 1001g, and the nut is screwed into the rotating shaft 1002 . When the rotating shaft 1002 rotates, the lifting part 1001 can be lifted upwards by relying on the screw fitting structure between the lif...

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PUM

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Abstract

The invention provides a mechanical spiral lifting device which comprises a base and a lifting part, wherein a cylindrical containing space is formed in the base, and a screw thread is arranged on the inner wall of the base for defining the containing space; a rotatable rotation shaft driven bya transmission mechanism is arranged at the central position of the bottom of the base, and the lifting part is cylindrical and is telescopically arranged at the base; the rotation shaft extends into the lifting part and can drive the lifting part to rotate, and a screw thread matched with the screw thread on the inner wall of the base is arranged on the outer wall of the lifting part. The mechanical spiral lifting device realizes a lifting function through a mechanical transmission lifting structure. By a standardization and modularization design, the mechanical spiral lifting device can be used as a set of standardized and modularized lifting device to be applied to various lifting equipment, vehicles or machines. The mechanical spiral lifting structure can increase the lifting height and has a high lifting performance. As the mechanical spiral lifting structure is adopted, when multiple mechanical spiral lifting devices are jointly used, the synchronous lifting for objects can be realized, and the lifting stability is improved.

Description

technical field [0001] The invention relates to the technical field of lifting equipment, in particular to a mechanical lifting device. Background technique [0002] At present, airbag or oil cylinder structure lifting equipment is more common. For example, the exchange vehicle needs to use a lifting device to lift the car body, and the existing exchange vehicle usually uses an air bag type lifting device or an oil cylinder type lifting device. [0003] The exchange vehicle lifted by the airbag usually realizes the loading, unloading and reloading of the exchange vehicle through the lifting of the airbag. However, limited by the pressure of the air storage tank of the car chassis itself, the airbag lift is generally only suitable for light-duty vehicles with a cargo capacity of no more than 10 tons. In addition, the lifting airbag is a flexible and vulnerable part, and the operation safety is low. The exchange car lifted by the oil cylinder realizes the loading, unloading...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F3/08
CPCB66F3/08
Inventor 曹志强徐仁勇高正国吕宝增
Owner QINGDAO CIMC REEFER TRAILER
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