CN209831504U

CN209831504U - Arbitrary automatic telescopic supporting tool for assembling large-tonnage dump truck

Info

Publication number: CN209831504U
Application number: CN201920449563.7U
Authority: CN
Inventors: 韩自强; 单武斌; 周展; 杨帅伟; 周亮
Original assignee: Hunan Electrical College of Technology
Current assignee: Hunan Electrical College of Technology
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2019-12-24
Anticipated expiration: 2029-04-04

Abstract

The utility model discloses an arbitrary automatic telescopic support tool for assembling a large-tonnage dump truck, wherein a universal wheel rotating frame is a tripod, a certain gap is formed between the universal wheel rotating frame and a bottom plate through a support body, and the bottom plate and the support body can move up and down relatively; the worm shaft and the worm wheel shaft are meshed through a gear and perform matching action; the spiral groove is arranged at the end part of the supporting body, the worm wheel shaft is arranged along the vertical direction of the supporting body, and the spring gasket is welded with the spring and is in contact with the worm wheel shaft. The rotation of the worm shaft can drive the worm wheel shaft to rotate, the worm wheel shaft is matched with the spiral groove and moves up and down relatively when rotating, and the rising or falling motion of the worm wheel shaft drives the spring to stretch so as to reduce or increase elastic potential energy. The tool can improve the production efficiency, reduce the damage to the ground environment, effectively protect the production environment, save the maintenance cost of a factory building, and improve the automatic stretching and random movement supporting tool of the production safety.

Description

Arbitrary automatic telescopic supporting tool for assembling large-tonnage dump truck

Technical Field

The utility model relates to a strutting arrangement especially relates to a large equipment assembly is with location and be convenient for device that removes, belongs to mechanical positioning frock technical field.

Background

With the rapid development of heavy industry, lean production, 6s management, green manufacturing and the like are increasingly emphasized, so that the production assembly environment, the working efficiency and the working strength of a workshop are required to be substantially improved, and the problem that a matched tool needs to be modified and upgraded is solved. A hundred-ton vehicle assembly workshop of Hunan electric group in a practice base in China is responsible for assembling 108-ton, 220-ton, 300-ton and other types of dump trucks, and the assembly process needs to position a dump truck frame on a tool support seat to be suspended, and then a unit type centralized production mode of parts such as an oil tank, a cab, an engine, an electric wheel, hydraulic oil pipes and the like is additionally arranged. The supporting seat for supporting the frame in the workshop belongs to a non-movable supporting tool, the weight of the supporting tool is about 100kg, workers can only be hoisted by a crane or pried by a crowbar, and the hoisting and positioning of the crane lead to the defects of complex operation, personnel cooperation, increased operation risk coefficient, waste of crane resources, collision risk on the ground and the like; the prying positioning of the crowbar has the defects of high labor intensity, serious ground damage, serious waste of human resources and the like. In order to meet the requirements of modern new assembly workshops which are about to be put into use, the supporting seat which is small in labor intensity, accurate in positioning, free of damage to the field environment, capable of being fixed and fixed during assembly and convenient to move during no-load is urgently needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a hundred tons of cars assembly can be fixed when with the location operation, the supporting seat of being convenient for remove during empty load to can reduce working strength, improve production efficiency, reduce and destroy ground environment, effective protection production environment saves factory building maintenance cost, and the automatic flexible arbitrary support frock to removing that improves production security.

The utility model provides a technical scheme that its technical problem adopted is: an arbitrary automatic telescopic supporting tool for assembling a large-tonnage dumper comprises a bottom plate 1, a supporting body 2, a rotating handle 3, a universal wheel rotating frame 4, a rotating wheel 5, a worm shaft 6, a spring gasket 7, a worm wheel shaft 8, a spring 9, a spiral groove 10, a threaded rivet 11, a connecting body 12 and a supporting column 15.

The universal wheel rotating frame 4 is a tripod, a certain gap is formed between the supporting body 2 and the bottom plate 1 of the universal wheel rotating frame 4, and the bottom plate 1 and the supporting body 2 can move up and down relatively through the gap; the swing handle 3 is mounted on the end of the worm shaft 6, and the swing handle 3 and the worm shaft 6 can move relative to each other in the longitudinal direction. The worm shaft 6 and the worm wheel shaft 8 are meshed through a gear and perform matching action; the spiral groove 10 is arranged at the end part of the support body 2, the worm gear shaft 8 is arranged along the vertical direction of the support body 2, and the worm gear shaft 8 is in threaded fit with the spiral groove 10; the spring washer 7 is welded to the spring 9 and contacts the worm gear shaft 8. The rotation of the worm shaft 6 can drive the worm wheel shaft 8 to rotate, the worm wheel shaft 8 is matched with the spiral groove 10 and moves up and down relatively when rotating, and the rising or falling motion of the worm wheel shaft 8 drives the spring 9 to stretch so as to reduce or increase elastic potential energy.

The rotating wheel 5 can be matched with the universal wheel rotating frame 4 and the connecting body 12 and can realize universal rolling, and the universal wheel rotating frame 4 is connected with the rotating wheel 5 through the fixed threaded rivet 11.

The handle 3 is rotated to adjust the spring force of the spring 9. The pressure born by the telescopic mechanism can be determined by adjusting the spring force, the pressure directly influences the stress condition and the moving condition of the moving mechanism of the bearing device, and the spring force needs to be adjusted properly.

Drawings

Fig. 1 is a cross-sectional view of an arbitrary direction telescopic supporting device.

Fig. 2 is a schematic side view of the main body of the telescopic supporting device in any direction.

Fig. 3 is a schematic cross-sectional structure view of the telescopic supporting device in any direction.

Fig. 4 is a left sectional view of the telescopic supporting device in any direction.

Fig. 5 is a schematic view of the device for freely steering the universal wheels.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1-5, the automatic telescopic support tool for assembling a large-tonnage dumper comprises a bottom plate 1, a support body 2, a rotating handle 3, a universal wheel rotating frame 4, a rotating wheel 5, a worm shaft 6, a spring gasket 7, a worm wheel shaft 8, a spring 9, a spiral groove 10, a threaded rivet 11, a connecting body 12 and a support column 15.

Examples

An arbitrary-direction automatic telescopic supporting tool for assembling a large-tonnage dumper is provided with an adjusting device, a moving device and a supporting device, wherein the adjusting device is used for adjusting the magnitude of a compression force according to dumper types with different weights; the moving device is used for moving the supporting tool; the supporting device belongs to a framework part; three devices are specifically illustrated below:

1. the supporting device comprises a supporting body, an inner cavity, a threaded hole, a connecting hole, an upper telescopic sleeve and a 4-heel supporting column; the inner cavity, the threaded hole and the connecting hole are positioned in the supporting body, the supporting body is welded with the supporting column into a whole in 4 places, and the upper telescopic sleeve is welded with the supporting body.

2. The moving device is formed by welding a lower telescopic sleeve, a bottom plate and 4 universal wheels. The bottom plate is provided with 4 holes which are in one-to-one correspondence with the 4 support frames. The universal wheel comprises a connector, a rotating frame, a rotating wheel and a threaded rivet. The connector is in rotary fit with the rotating frame, and the rotating frame is in rotary fit with the rotating wheel through the threaded willow nut.

3. The adjusting device comprises a rotating handle, a worm wheel shaft, a worm shaft, a spring, an upper spring gasket and a lower spring gasket. The inner end of the worm is provided with a gear, and the outer end of the gear is provided with 1 round hole. The worm wheel shaft is provided with a thread and a gear. The shaking handle is penetrated in the outer end hole of the worm shaft and is in sliding fit. The worm shaft and the worm wheel shaft are matched with each other through a worm wheel and a worm. The spring washer is welded with the lower end of the worm wheel shaft. The upper end and the lower end of the spring are welded with the two spring gaskets.

Between strutting arrangement and adjusting device, a coaxial normal running fit of through-hole on worm shaft and the supporter, worm wheel epaxial screw thread and supporter internal thread hole cooperation, gear and worm wheel shaft in the worm shaft middle gear cooperate and deposit in the supporter inner chamber, and spring and last spring gasket deposit are in last telescope tube.

Between strutting arrangement and slider, four support columns telescope four holes on the bottom plate and be sliding fit, go up telescopic sleeve and be sliding fit with lower telescopic sleeve.

Between slider and adjusting device, lower spring gasket and spring the latter half deposit wherein, lower spring gasket and bottom plate upper surface contact.

The four stopping mechanisms supporting the upper layer play a positioning role, namely the motion amplitude of the sliding sleeve is determined, so that the height of the automatic telescopic universal mobile bearing device away from the ground when no load exists is determined; the expansion amount of the stop mechanism is increased when the stop mechanism is adjusted upwards, and the expansion amount of the stop mechanism is decreased when the stop mechanism is adjusted downwards; the size of the stretching amount can be determined according to the ground condition, the stretching amount can be smaller when the ground condition is better, and the stretching amount can be larger when the ground condition is poorer.

The telescopic mechanism can realize automatic telescopic, when the bearing device is acted by a certain heavy object or other pressure, the bearing device can be contacted with the ground to support all loads, the universal wheels are protected from being damaged, after the loads are cancelled, the bearing device automatically leaves the ground, the universal wheels automatically extend out, and the bearing device is convenient to move and align.

The universal wheel assembly can realize the movement in any direction, and the movement in any direction is very important in the alignment and small-range movement of the bearing device and is the movement necessary for the work of tools, jacks, supports, special tools and the like.

And the static and dynamic conversion function is that when a heavy object is placed on the support body, the lower surface of the support body generates pressure on the spring gasket, the spring gasket pushes the spring to compress until the support column is in contact with the ground to transfer the pressure to the ground, and the pressure is transferred from the universal wheel to the support column. The strong static friction force generated by the interaction of the supporting column and the ground makes the tool fixed and cannot move easily.

When the heavy object was taken away, the spring still extends after the compression, and the spring passes elasticity to gasket jack-up supporter on both ends, makes the support column liftoff, and pressure has the support again to shift to the universal wheel on, and universal removal function is realized to this frock.

The sensitivity adjustment function is that the rocking handle is rotated to drive the worm shaft to rotate, the worm gear between the worm shaft and the worm wheel shaft is matched to drive the worm wheel shaft to rotate, and the thread on the worm wheel shaft is matched with the thread hole in the support body in a thread way to move up and down when the worm wheel shaft rotates. When the worm wheel moves downwards, force is transmitted to the spring through the gasket, the spring is compressed continuously to enable the spring to have larger elastic potential energy, and the supporting column needs to bear larger pressure when descending for the same distance, so that the sensitivity of the tool is reduced, and otherwise, the sensitivity can be increased. The utility model discloses the adaptation bears the very big article of weight, and the gravity of article is far more than the automatic universal extension spring's that removes and bear the device spring force promptly.

Claims

1. The large-tonnage dump truck is assembled with automatic support frock that stretches out and draws back of arbitrary intention, its characterized in that: the device comprises a bottom plate (1), a support body (2), a rotating handle (3), a universal wheel rotating frame (4), a rotating wheel (5), a worm shaft (6), a spring gasket (7), a worm wheel shaft (8), a spring (9), a spiral groove (10), a threaded rivet (11), a connecting body (12) and a supporting column (15);

the universal wheel rotating frame (4) is a tripod, a certain gap is formed between the universal wheel rotating frame (4) and the bottom plate (1) through the supporting body (2), and the bottom plate (1) and the supporting body (2) can move up and down relatively through the gap; the rotating handle (3) is arranged at the end part of the worm shaft (6), and the rotating handle (3) and the worm shaft (6) can move relatively along the longitudinal direction; the worm shaft (6) and the worm wheel shaft (8) are meshed through a gear and perform matching action; the spiral groove (10) is arranged at the end part of the support body (2), the worm wheel shaft (8) is arranged along the vertical direction of the support body (2), and the worm wheel shaft (8) is in threaded fit with the spiral groove (10); the spring gasket (7) is welded with the spring (9) and is contacted with the worm wheel shaft (8); the worm shaft (6) can rotate to drive the worm wheel shaft (8) to rotate, the worm wheel shaft (8) is matched with the spiral groove (10) and moves up and down relatively when rotating, and the rising or falling motion of the worm wheel shaft (8) drives the spring (9) to stretch and retract so as to reduce or increase elastic potential energy;

the rotating wheel (5) can be matched with the universal wheel rotating frame (4) and the connecting body (12) and can realize universal rolling, and the universal wheel rotating frame (4) is connected with the rotating wheel (5) through a fixed threaded rivet (11).

2. The arbitrary-direction automatic telescopic support tool for assembling the large-tonnage dump truck according to claim 1, characterized in that: the spring force of the spring (9) is adjusted by rotating the handle (3).