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A hydraulic hose expansion device suitable for crawler curb paver

A technology of hydraulic hose and telescopic device, which is applied in the direction of roads, roads, pipe supports, etc., to achieve the effect of beautiful layout and guaranteed reliability

Active Publication Date: 2021-09-07
徐州新路智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to adapt to different working environments and facilitate transition, crawler-type curb paver generally has the function of lifting the whole machine; the operator realizes the adjustment of different working heights of the paver by controlling the expansion and contraction of the telescopic oil cylinder on the outrigger of the paver. The type paver requires a hydraulic motor to drive the drive wheel of the crawler to rotate and then drive the paver to walk, and the power source of the hydraulic motor is hydraulic energy, so the operation of the hydraulic motor needs to be connected to the hydraulic system on the paver through a hydraulic hose Form a hydraulic circuit; when the paver lifts, the relative position of the hydraulic motor and the hydraulic system on the main body of the paver changes greatly, and the layout of the hydraulic pipelines connecting the two will inevitably change; The pipeline between the system and the hydraulic motor is a hydraulic hose, and the length of the hydraulic hose is usually 1.03 to 1.1 times the linear length of the hydraulic motor to the hydraulic joint on the main body of the paver when the outriggers are fully extended. , which is positioned at a point on the fixed part of the leg by a cable tie; but when the paver needs to descend to a height, the telescopic oil cylinder retracts, and the hydraulic pressure changes due to the change of the linear length of the hydraulic joint on the main body of the hydraulic motor to the paver. The length of the hose cannot be changed, such as figure 2 As shown, the hydraulic motor oil inlet pipe, oil return pipe and oil discharge return pipe are combined into one through the hose sheath. At this time, the defects of only using cable ties to fix the hydraulic hose are exposed: one is that the hydraulic hose is damaged. Bending by force causes most of the hoses to hang in the air, and its bending direction is difficult to accurately control, which affects the appearance and is prone to hoses hanging on the track, rubbing against completed or unfinished curbs, etc., which will aggravate the aging of the hydraulic hoses and even Even if the hose sheath is added to the problem of oil leakage, it will not help the severe wear; the second is that the connection position between the hydraulic hose and the hydraulic joint on the hydraulic motor is easy to loose due to irregular force due to the expansion and contraction of the legs. This leads to leakage of hydraulic oil and seriously affects the operation of the paver; third, the cable ties used are prone to aging and fracture due to long-term exposure, which brings hidden dangers to the safe operation of the paver; , Bending at a short distance and large angle will cause the fatigue of the hose or even cause the oil to hold pressure and damage the hydraulic system

Method used

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  • A hydraulic hose expansion device suitable for crawler curb paver
  • A hydraulic hose expansion device suitable for crawler curb paver
  • A hydraulic hose expansion device suitable for crawler curb paver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] The hydraulic hose telescopic device applicable to crawler curb paver of the present invention comprises paver outrigger 100, hose guiding device 200, hose locking device 300 and hose dragging device 400; The machine leg 100 is a necessary structural part of the paver, which includes a leg fixing part 110 and a leg telescoping part 120; the leg fixing part 110 is fixedly connected to the paver frame to carry the The function of the outrigger telescopic part 120, the outrigger telescopic part 120 is axially positioned on the outrigger fixing part 110, its main body is located inside the outrigger fixing part 110 and one end extends out of the outrigger fixing part 110 and is controlled to expand and contract relative to the leg fixing portion 110 .

[0132] Such as figure 1 As shown, the hose guiding device 200 includes a hose bend 210, a first guide roller 220, a second guide roller 230, a third guide roller 240 and a hose stopper 250; it functions as a hydraulic moto...

Embodiment 2

[0140] In order to further limit the bending of the hydraulic hose located between the first guide roller 220 and the second guide roller 230 in the first embodiment, and prevent its bending angle from being too large and thus affecting the delivery of oil in the hydraulic hose, the present invention implements Example On the basis of the first embodiment, a hose storage device 500 is added to further limit the bending track of the hydraulic hose located between the first guide roller 220 and the second guide roller 230 .

[0141] Such as Image 6 As shown, the hose storage device 500 includes a hose guide plate 510 and a hose lifting device 520; the hose guide plate 510 is an arc-shaped plate, which is fixedly connected to the paving On the side wall of the machine frame; the hose lifting device 520 is used to apply force to the hose entering the hose storage device 500, so that it fits the hose guide plate 510, which includes Hose lifting plate 521, lifting elastic body 522...

Embodiment 3

[0143] In order to reduce the necessary space of the hose storage device 500, the embodiment of the present application adds the following on the basis of the first embodiment: Figure 7 The shown hose winding device 530 is used to wind the hydraulic hose located between the first guide roller 220 and the second guide roller 230 in the first embodiment so as to reduce the space occupied by it.

[0144] The hose winding device 530 is an imitation center gyratory structure, which includes a hose winding device main body 531, an oil communication hole 532 and a reset elastic element 533; Figure 7 As shown, the main body 531 of the hose winding device is cylindrical, which includes a rotating part and a fixed part; the rotating part is a hollow cylinder, and its side wall is provided with an oil communication hole 532; the fixed part Such as Figure 8 As shown, it is cylindrical as a whole, and one end of the cylindrical fixing part is fixedly connected with the side wall of the...

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Abstract

The application discloses a hydraulic hose telescopic device suitable for a crawler-type curb paver, which includes a paver leg, a hose guiding device, a hose locking device and a hose dragging device; The outrigger of the paver is a necessary structural part of the paver, which includes a fixed part of the outrigger and a telescopic part of the outrigger; the hose guide device serves as a hose for connecting the hydraulic motor and the hydraulic system of the main body of the paver The function of guiding; the hose locking device is fixedly connected to the end of the telescopic part of the outrigger close to the hydraulic motor, and plays the role of locking the hydraulic hose at the position where the hydraulic hose is close to the hydraulic hose joint; the soft hose The pipe dragging device includes a rod body, a dragging block and a block slideway; the dragging block is slid and positioned on the block slideway; The action is transmitted to the dragging block and the dragging block is forced to slide on the block slideway.

Description

technical field [0001] The invention relates to the technical field of paver, in particular to a hydraulic hose telescopic device suitable for a crawler-type curb paver. Background technique [0002] In order to adapt to different working environments and facilitate transition, crawler-type curb paver generally has the function of lifting the whole machine; the operator realizes the adjustment of different working heights of the paver by controlling the expansion and contraction of the telescopic oil cylinder on the outrigger of the paver. The type paver requires a hydraulic motor to drive the drive wheel of the crawler to rotate and then drive the paver to walk, and the power source of the hydraulic motor is hydraulic energy, so the operation of the hydraulic motor needs to be connected to the hydraulic system on the paver through a hydraulic hose Form a hydraulic circuit; when the paver lifts, the relative position of the hydraulic motor and the hydraulic system on the mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C19/50E01C19/52F16L3/02F16L3/18
CPCE01C19/508F16L3/02F16L3/18
Inventor 齐从军尹畅李相权杨森孙广坤石淮什
Owner 徐州新路智能科技有限公司