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Support leg for semitrailer

A semi-trailer and inner leg technology, applied in vehicle maintenance, lifting vehicle accessories, transportation and packaging, etc., can solve the problems of insecure flexibility, high manufacturing cost, long transmission chain, etc., and achieve simplified telescopic range and manufacturing cost The effect of low and few transmission parts

Inactive Publication Date: 2009-12-23
郭俊生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmission chain is long, the manufacturing cost is high, and the manufacturing is difficult. The support of each transmission shaft is welded with steel sleeves, which has a large amount of deformation and no guarantee of flexibility.

Method used

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  • Support leg for semitrailer
  • Support leg for semitrailer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment includes an outer leg 11, a lifting inner leg 12 that can be stretched up and down in the outer leg 11, and a lead screw 6 connecting the outer leg 11 and the lifting inner leg 12, and is characterized in that the lower end of the lifting inner leg 12 is connected with a foldable foot 14. The lead screw 6 is respectively clamped with the screw nut 1 fixed in the lifting inner leg 12 and the ball bearing 5 installed on the inner bearing seat 4 of the outer leg 11. The upper end of the lead screw 6 is installed with a locking nut 7 and a ball bearing 5 There is a worm wheel 8 with a worm 9 on the side fixed up and down; a connecting plate 10 with a screw hole 13 on the surface is fixed on the relative position outside the outer leg 11; the lower end of the bearing seat 4 is provided with a mounting plane around the screw 6 The pressure bearing seat 2 of the bearing 3; the upper...

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PUM

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Abstract

The invention relates to a member for a semitrailer, in particular to a support leg for a semitrailer. The support leg for the semitrailer comprises an outer leg, an elevating inner leg capable of extending and retracting up and down in the outer leg and a screw rod connected with the outer leg and the elevating inner leg. The support leg for the semitrailer is characterized in that the lower end of the elevating inner leg is connected with a folding foot, the screw rod is respectively clamped with a screw fixed in the elevating inner leg and a ball bearing installed on a bearing base at the inner side of the outer leg, the upper end of the screw rod is provided with a worm wheel which is fixed by a locking nut and the ball bearing and is provided with a worm rod at one side. The invention has the advantages of compact structure, fewer transmission components, lower production cost, less quantity of welding deformation, convenient production assembly and high precision.

Description

(1) Technical field [0001] The invention relates to a semitrailer component, in particular to a semitrailer outrigger. (2) Background technology [0002] The outer sides of the left and right side beams of the front section of the semi-trailer are usually equipped with movable outriggers to help support the semi-trailer when loading and unloading goods or parking for maintenance, and the height of the semi-trailer can be adjusted according to the actual height of the traction seat of various tractors. These movable outriggers should generally be retracted during the driving of the semi-trailer, so as to reliably prevent the movable outriggers from contacting the ground and prevent safety accidents from being induced. [0003] The outriggers of semi-trailers widely used in the market are generally decelerated by 7 gears. The drive chain is long, the manufacturing cost is high, and the manufacture is difficult. The support of each drive shaft is welded with steel sleeves, whi...

Claims

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Application Information

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IPC IPC(8): B60S9/06
Inventor 郭俊生
Owner 郭俊生
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