CN217347354U

CN217347354U - Tripod universal wheel structure

Info

Publication number: CN217347354U
Application number: CN202220993403.0U
Authority: CN
Inventors: 李殿奎
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-09-02
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a tripod universal wheel structure, wherein the universal wheel frame is vertically connected with a first support through a cross shaft, the bottom of the first support is hinged with the front end of a second support, the top of the first support is hinged with the front end of a lifting oil cylinder, a sliding groove is arranged on the second support, the sliding groove is parallel to the lifting oil cylinder, a limiting rod is transversely arranged at the end part of a piston rod on the lifting oil cylinder, the limiting rod can slide in the sliding groove, the tail end of the second support is inclined downwards, and a buffer mechanism is arranged in the second support; the second support is connected with a large wheel frame below the second support through a vertical shaft, a large wheel shaft and a small wheel frame are mounted on the large wheel frame, universal large wheels are mounted at two ends of the large wheel shaft respectively, and auxiliary supporting small wheels are mounted on the small wheel frame. The utility model discloses an install the structural buffer gear of universal wheel, can effectually play the cushioning effect to the turnover plow in the work.

Description

Tripod universal wheel structure

Technical Field

The utility model belongs to the mechanical equipment field, concretely relates to tripod universal wheel structure.

Background

With the increase of the number of the prior ploughshares, the self weight of the turnover plow is increased, the gravity center moves backwards, and an auxiliary wheel is usually added in the middle of the turnover plow to share the weight. Since the reversible plow may need to be worked in an environment where the soil is hardened and hard, the reversible plow has to be continuously strengthened in structure, which further increases the weight of the reversible plow.

Because the turnover plow needs to turn around frequently during field cultivation, the turnover plow needs to be turned over after being lifted every time the tractor turns around. Because the field ground is uneven, and the self weight of the turnover plow is heavier and the gravity center is close to the back, the tractor is more impacted by the turnover plow when turning around in the field each time, the strong impact force often causes the problems that the rear suspension of the tractor breaks, the hydraulic system of the lifting part breaks down and the like, and the rotating shaft of the turnover plow can also break seriously.

Disclosure of Invention

In order to solve the problem, the utility model provides a tripod universal wheel structure through installing on the turnover plow, plays the cushioning effect to the turnover plow in work.

The utility model adopts the technical proposal that: a tripod universal wheel structure comprises a universal wheel frame, a first support, a second support, a lifting oil cylinder, a large wheel frame, a small wheel frame, a buffer mechanism, a universal large wheel and an auxiliary supporting small wheel; the universal wheel frame is vertically connected with the first support through a cross shaft, the bottom of the first support is hinged with the front end of the second support, the top of the first support is hinged with the front end of the lifting oil cylinder, the second support is provided with a sliding groove, the sliding groove is parallel to the lifting oil cylinder, the end part of a piston rod on the lifting oil cylinder is transversely provided with a limiting rod, the limiting rod can slide in the sliding groove, the tail end of the second support is inclined downwards, and a buffer mechanism is installed in the limiting rod; the second support is connected with a large wheel frame below the second support through a vertical shaft, a large wheel shaft and a small wheel frame are mounted on the large wheel frame, universal large wheels are mounted at two ends of the large wheel shaft respectively, and auxiliary supporting small wheels are mounted on the small wheel frame.

Further, buffer gear includes buffer spring and ejector pin, buffer spring installs the end at the second support, the ejector pin is installed between buffer spring and piston rod.

Further, the buffer mechanism comprises a buffer oil cylinder, a U-shaped push rod and an energy accumulator, the buffer oil cylinder is installed at the tail end of the second support, a buffer oil cylinder piston rod of the buffer oil cylinder faces the tail end of the second support, two ends of the U-shaped push rod are connected to two ends of the limiting rod, and a bent part of the U-shaped push rod is connected to the buffer oil cylinder piston rod; the energy accumulator is arranged on the side face of the second support and connected with the buffer oil cylinder.

Furthermore, a depth limiting mechanism is arranged on the second support and consists of pin holes with different heights, and the first support is limited by inserting pins into the pin holes.

The utility model discloses the beneficial effect who produces is: the utility model discloses an install the structural buffer gear of universal wheel, to can increasing buffer function in the basis that does not influence universal wheel structure function, can effectually play the cushioning effect to the turnover plow in work.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment;

FIG. 2 is a side sectional view of the first embodiment;

FIG. 3 is a schematic structural diagram of a second embodiment;

in the figure: the device comprises a universal wheel frame 1, a transverse shaft 2, a first support 3, a second support 4, a lifting oil cylinder 5, a piston rod 6, a limiting rod 7, a sliding groove 8, a buffer mechanism 9, a vertical shaft 10, a large wheel frame 11, a small wheel frame 12, a large wheel shaft 13, a universal large wheel 14, a small auxiliary supporting wheel 15, a buffer spring 16, a push rod 17, a buffer oil cylinder 18, a U-shaped push rod 19, a buffer oil cylinder piston rod 20, an energy accumulator 21 and a depth limiting mechanism 22.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The following is a first embodiment of the present invention.

As shown in fig. 1 and fig. 2, a tripod universal wheel structure comprises a universal wheel frame 1, a first bracket 3, a second bracket 4, a lifting oil cylinder 5, a large wheel frame 11, a small wheel frame 12, a buffer mechanism 9, a universal large wheel 14 and an auxiliary supporting small wheel 15; the universal wheel frame 1 is used for being connected with a plough body crossbeam, and the universal wheel frame 1 is vertically connected with the first support 3 through the cross shaft 2, so that the universal wheel structure can swing left and right on a vertical surface. The bottom of the first support 3 is hinged with the front end of the second support 4, the top of the first support 3 is hinged with the front end of the lifting oil cylinder 5, and the first support 3, the second support 4 and the lifting oil cylinder 5 form a triangular structure. The second support 4 is provided with a sliding groove 8, the sliding groove 8 is parallel to the lifting oil cylinder 5, the end portion of the piston rod 6 on the lifting oil cylinder 5 is transversely provided with a limiting rod 7, and two ends of the limiting rod 7 can slide in the sliding groove 8. The tail end of the second bracket 4 is inclined downwards, and a buffer mechanism 9 is arranged in the tail end; in the present embodiment, the damper mechanism 9 includes a damper spring 16 and a jack 17, the damper spring 16 is mounted at the end of the second bracket 4, and the jack 17 is mounted between the damper spring 16 and the piston rod 6. The second bracket 4 is connected with a large wheel frame 11 below the second bracket through a vertical shaft 10, so that the universal wheel structure can swing 360 degrees on a horizontal plane. The big wheel frame 11 is provided with a big wheel shaft 13 and a small wheel frame 12, two ends of the big wheel shaft 13 are respectively provided with a universal big wheel 14, and the small wheel frame 12 is provided with an auxiliary supporting small wheel 15. Two large universal wheels 14 and one auxiliary support small wheel 15 form a stable structure with a triangle shape, and are used for providing support for the universal wheel structure.

The second bracket 4 is provided with a depth limiting mechanism 22, the depth limiting mechanism 22 is composed of pin holes with different heights formed in the second bracket 4, and the second bracket 4 is limited by inserting pins into the pin holes so as to limit the tillage depth of the turnover plow.

The following is a second embodiment of the present invention.

As shown in fig. 3, the difference between the present embodiment and the first embodiment is that the buffer mechanism 9 includes a buffer cylinder 18, a U-shaped push rod 19 and an energy accumulator 21, the buffer cylinder 18 is installed at the end of the second bracket 4, a buffer cylinder piston rod 20 of the buffer cylinder 18 faces the end of the second bracket 4, two ends of the U-shaped push rod 19 are connected to two ends of the limiting rod 7, and a bent portion of the U-shaped push rod 19 is connected to the buffer cylinder piston rod 20; the energy accumulator 21 is arranged on the side surface of the second bracket 4, and the energy accumulator 21 is connected with the buffer oil cylinder 18.

The utility model discloses an install the structural buffer gear of universal wheel, to can increasing buffer function in the basis that does not influence universal wheel structure function, can effectually play the cushioning effect to the turnover plow in work.

Claims

1. A tripod universal wheel structure comprises a universal wheel frame, a first support, a second support, a lifting oil cylinder, a large wheel frame, a small wheel frame, a buffer mechanism, a universal large wheel and an auxiliary supporting small wheel; the method is characterized in that: the universal wheel frame is vertically connected with a first support through a cross shaft, the bottom of the first support is hinged with the front end of a second support, the top of the first support is hinged with the front end of a lifting oil cylinder, a sliding groove is formed in the second support and is parallel to the lifting oil cylinder, a limiting rod is transversely arranged at the end part of a piston rod on the lifting oil cylinder and can slide in the sliding groove, the tail end of the second support inclines downwards, and a buffer mechanism is installed in the second support; the second support is connected with a large wheel frame below the second support through a vertical shaft, a large wheel shaft and a small wheel frame are mounted on the large wheel frame, universal large wheels are mounted at two ends of the large wheel shaft respectively, and auxiliary supporting small wheels are mounted on the small wheel frame.

2. A tripod universal wheel structure as claimed in claim 1, wherein: the buffer mechanism comprises a buffer spring and an ejector rod, the buffer spring is installed at the tail end of the second support, and the ejector rod is installed between the buffer spring and the piston rod.

3. A tripod universal wheel structure according to claim 1, wherein: the buffer mechanism comprises a buffer oil cylinder, a U-shaped push rod and an energy accumulator, the buffer oil cylinder is arranged at the tail end of the second support, a buffer oil cylinder piston rod of the buffer oil cylinder faces the tail end of the second support, two ends of the U-shaped push rod are connected to two ends of the limiting rod, and a bent part of the U-shaped push rod is connected to the buffer oil cylinder piston rod; the energy accumulator is arranged on the side face of the second support and connected with the buffer oil cylinder.

4. A tripod universal wheel structure as claimed in claim 1, wherein: the second support is provided with a depth limiting mechanism, the depth limiting mechanism is composed of pin holes with different heights formed in the second support, and the first support is limited by inserting pins into the pin holes.