Buffering driving wheel for crawler walking device

Abstract

The utility model belongs to the technical field of driving wheels, and particularly relates to a buffering driving wheel for a crawler walking device, which comprises a driving wheel main body, the outer end of the driving wheel main body is connected with a buffering mechanism, the buffering mechanism comprises a rubber buffering cushion connected to the outer end of the driving wheel main body, and the outer end of the rubber buffering cushion is connected with a protective frame. A threaded rod is connected into the driving wheel body tooth-shaped part, a pressing plate is welded to the end, away from the center of the driving wheel body, of the threaded rod, and a threaded hole is formed in the middle in the driving wheel body tooth-shaped part. According to the buffering driving wheel for the crawler walking device, when the driving wheel body rotates to drive the crawler to move, the tooth-shaped part at the outer end of the driving wheel body makes contact with the inner side of the crawler to impact the protection frame, the rubber buffering pad is compressed to generate slight deformation to offset part of impact force, and meanwhile the protection frame slightly moves together; and the driving wheel main body is buffered and protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to drive wheel technical field, concretely is a buffer drive wheel for track walking device. BACKGROUND

[0002] Engineering machinery often adopts track walking mechanism with large ground contact area and more stable walking because of the bad working environment, and the track walking mechanism such as excavator, heading machine, bulldozer and the like is driven by drive wheel, and the drive wheel is required to be smoothly engaged with chain track joint without vibration and tooth jumping phenomenon.

[0003] At present, the radial section of the drive wheel tooth is rectangular, and when the walking mechanism drives forward or backward, the radial tooth surface of the drive wheel is abraded, the hardness of the radial tooth surface of the drive wheel can be ensured by induction heating and quenching process, and the wear resistance is good, when the track of the walking mechanism is too loose, the walking mechanism turns, the track is axially inclined relative to the drive wheel, the chain track joint and the drive wheel may be interfered, the tooth cannot smoothly enter the chain track joint, and the tooth jumping phenomenon occurs, the drive wheel needs to be replaced as a whole after the axial surface is abraded, the cost is high, and the replacement time is long, which affects production

[0004] The axial and radial sections of the tooth and the protective shell arranged outside the tooth are set as isosceles trapezoidal shape, the interference between the chain track joint and the drive wheel is avoided when the walking mechanism turns and the track is axially inclined relative to the drive wheel, the tooth cannot smoothly enter the chain track joint, and the tooth jumping phenomenon is avoided, the protective shell can avoid the abrasion of the wheel body, the protective shell is directly replaced when the protective shell is abraded, the wheel body does not need to be replaced, time is saved, and the maintenance cost is reduced, and the setting of the weight reduction groove makes the wall thickness of the drive wheel uniform, and the casting or forging defects are reduced.

[0005] But in the process that the drive wheel drives the track to rotate, the drive wheel will impact when continuously contacting the inner side of the track, and the drive wheel lacks a buffer structure to buffer the impact generated when contacting, so that the damage speed of the drive wheel is accelerated.

[0006] Therefore, it is urgent to provide a buffer drive wheel for track walking device. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a buffer drive wheel for track walking device to solve the problems in the background art.

[0008] To achieve the above object, the utility model provides the following technical scheme: a buffer drive wheel for track walking device, which comprises a drive wheel body, and a buffer mechanism connected to the outer end of the drive wheel body.

[0009] The buffering mechanism comprises a rubber buffer pad connected to the outer end of the driving wheel body, a protective frame connected to the outer end of the rubber buffer pad, and a threaded rod connected to the inside of the toothed part of the driving wheel body, with a pressing plate welded to the end of the threaded rod away from the center of the driving wheel body.

[0010] Further improvements include that a threaded hole is formed in the middle of the inside of the toothed part of the driving wheel body, a circular hole is formed in the middle of the inside of the rubber buffer pad, a buffering hole is formed below the middle of the inside of the protective frame, a groove is formed above the middle of the inside of the protective frame, the outside of the threaded rod is threadedly connected to the inside of the threaded hole, the threaded rod passes through the inside of the buffering hole, the outside of the threaded rod is slidingly connected to the inside of the circular hole, and the lower side of the pressing plate abuts against the bottom end of the inside of the groove, so that the threaded rod is threadedly connected to the threaded hole through the groove, the buffering hole and the circular hole until the lower side of the pressing plate contacts the bottom end of the inside of the groove, and then the rubber buffer pad and the protective frame are fixed to the outside of the toothed part of the driving wheel body.

[0011] Further improvements include that there is a gap between the inside of the buffering hole formed in the inside of the protective frame and the outside of the threaded rod, and there is a gap between the edge of the inside of the groove formed in the inside of the protective frame and the edge of the outside of the pressing plate, so that the gaps between the threaded rod, the pressing plate and the protective frame allow the protective frame to move slightly, ensuring the normal operation of the buffering work.

[0012] Further improvements include that lubricating mechanisms are arranged at the inner and outer ends of the driving wheel body, the lubricating mechanisms comprise a roller connected to the inside of the driving wheel body, a rotating ring connected to the inner side of the driving wheel body, a counterweight fixedly connected to the inner bottom end of the rotating ring, an adding pipe installed above the front end of the inside of the driving wheel body, and a cover connected to the other end of the adding pipe.

[0013] Further improvements include that an arc-shaped groove is connected to the inside of the driving wheel body, the front and rear sides of the rotating ring are slidingly connected to the front and rear ends of the inside of the arc-shaped groove, the outside of the roller is rollingly connected to the edge of the inside of the arc-shaped groove, and the outside of the rotating ring is rollingly connected to the outside of the roller, so that the roller rolls between the inside of the rotating ring and the arc-shaped groove when the rotating ring rotates.

[0014] Further improvements include that the end of the adding pipe away from the cover is fixed to the inside of the driving wheel body above the front end of the rotating ring, the outside of the end of the adding pipe away from the driving wheel body is provided with external threads, the inside of the cover is provided with internal threads, and the outside of the end of the adding pipe away from the driving wheel body is threadedly connected to the inside of the cover, so that the lubricating oil in the arc-shaped groove can be added from the adding pipe to the arc-shaped groove after the cover is removed from the external end of the adding pipe by rotating the cover.

[0015] Further improvement lies in that the oil outlet is arranged at the left and right ends of the counterweight at the lower end of the rotating ring, the air inlet hole is arranged at the upper end of the rotating ring, the through hole is arranged at the middle position of the threaded rod and the adding pipe, and the threaded hole at one end of the tooth-shaped part of the driving wheel body is connected with the arc-shaped groove, so that the lubricating oil in the arc-shaped groove between the rotating rings can drip from the oil outlet at the lower end to the outer end of the rotating ring in the arc-shaped groove during rotation of the driving wheel body.

[0016] In conclusion, the application discloses a buffer driving wheel for a track walking device.

[0017] When the inner side of the protective frame of the driving wheel body contacts the track and impact is generated, the rubber buffer pad is compressed to slightly deform to offset part of the impact force, and the protective frame slightly moves together, so that the gap between the threaded rod, the pressing plate and the protective frame enables the protective frame to slightly move, so that the normal buffer work is ensured, and the buffer protection effect of the driving wheel body is achieved.

[0018] Further, the lubricating oil in the arc-shaped groove between the rotating rings can drip from the oil outlet at the lower end to the outer end of the rotating ring in the arc-shaped groove, and then flow out from the through hole in the threaded rod and the pressing plate to the contact position of the driving wheel body and the track, so that the contact position of the driving wheel body and the track is kept lubricated, the driving wheel body and the track can be smoothly contacted, the friction between the outer end of the protective frame and the inner side of the track is reduced, and thus the damage speed of the protective frame is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the main structure of the utility model;

[0020] Figure 2 It is a schematic view of the structure at the adding pipe of the utility model;

[0021] Figure 3 It is a sectional view of the driving wheel body structure of the utility model;

[0022] Figure 4 It is a schematic view of the structure at the rotating ring of the utility model;

[0023] Figure 5 It is a schematic view of the structure at the threaded rod of the utility model.

[0024] In the drawing: 1, driving wheel body; 201, rubber buffer pad; 202, protective frame; 203, threaded rod; 204, pressing plate; 301, roller; 302, rotating ring; 303, counterweight; 304, adding pipe; 305, cover. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] Please refer to Figures 1-5 The utility model provides a kind of technical solutions: a buffer drive wheel for track walking device, including drive wheel main body 1, the outer end of drive wheel main body 1 is connected with buffer mechanism.

[0027] Buffer mechanism includes the rubber buffer pad 201 connected to the outer end of drive wheel main body 1, the outer end of rubber buffer pad 201 is connected with protective frame 202, the inside of the toothed portion of drive wheel main body 1 is connected with threaded rod 203, the end of threaded rod 203 away from the center of drive wheel main body 1 is welded with pressing plate 204, the inside of the toothed portion of drive wheel main body 1 is provided with threaded hole in middle position, the inside of rubber buffer pad 201 is provided with round hole in middle position, the inside of protective frame 202 is provided with buffer hole below middle position, the inside of protective frame 202 is provided with recess above middle position, the outside of threaded rod 203 is connected with the inside of threaded hole in screw, the inside of threaded rod 203 passes through the inside of buffer hole, the outside of threaded rod 203 is connected with the inside of round hole in sliding, the downside of pressing plate 204 is in contact with the bottom end of the inside of recess, so that after placing rubber buffer pad 201 on the toothed portion outer end of drive wheel main body 1, then placing pressing plate 204 on the outer end of rubber buffer pad 201, then threaded rod 203 is connected to threaded hole in threaded after passing through recess, buffer hole and round hole until the downside of pressing plate 204 contacts the bottom end of the inside of recess, rubber buffer pad 201 and protective frame 202 can be fixed to the outside of the toothed portion of drive wheel main body 1.

[0028] The inside of buffer hole in the inside of protective frame 202 is provided with gap with the outside of threaded rod 203, the inside edge of recess in the inside of protective frame 202 is provided with gap with the outside edge of pressing plate 204, so that when the inside of protective frame 202 on the outer end of drive wheel main body 1 contacts track, generates impact, rubber buffer pad 201 is compressed to generate slight deformation to offset part of impact force, while protective frame 202 generates slight movement, the gap between threaded rod 203 and pressing plate 204 and protective frame 202 enables protective frame 202 to move slightly, to ensure that the normal operation of buffer work.

[0029] The inner and outer ends of the driving wheel body 1 are provided with lubricating mechanisms, which include a roller 301 connected to the inside of the driving wheel body 1, a rotating ring 302 connected to the inner side of the driving wheel body 1, and an arc-shaped groove connected to the inside of the driving wheel body 1. The front and rear sides of the rotating ring 302 are slidingly connected to the front and rear ends of the inner side of the arc-shaped groove, the outer side of the roller 301 is rollingly connected to the inner edge of the arc-shaped groove, and the outer side of the rotating ring 302 is rollingly connected to the outer side of the roller 301. Therefore, when the rotating ring 302 rotates, the roller 301 will roll between the rotating ring 302 and the inside of the arc-shaped groove, making the rotating ring 302 rotate more smoothly.

[0030] The inner bottom end of the rotating ring 302 is fixedly connected with a counterweight 303, the inside of the front end of the driving wheel body 1 is provided with an adding pipe 304, the other end of the adding pipe 304 is connected with a cover 305, the end of the adding pipe 304 away from the cover 305 is fixed to the inside of the driving wheel body 1 above the front end of the rotating ring 302, the outer side of the end of the adding pipe 304 away from the driving wheel body 1 is provided with external threads, the inner side of the cover 305 is provided with internal threads, and the outer side of the end of the adding pipe 304 away from the driving wheel body 1 is threadedly connected with the inner side of the cover 305. Therefore, after the lubricating oil in the arc-shaped groove is used up, the cover 305 is removed from the outer end of the adding pipe 304 by rotating the cover 305, and then the lubricating oil is added from the adding pipe 304 to the arc-shaped groove.

[0031] The lower end of the inside of the rotating ring 302 is provided with oil outlets at the left and right ends of the counterweight 303, the upper end of the inside of the rotating ring 302 is provided with air inlets, the middle of the inside of the threaded rod 203 and the adding pipe 304 is provided with a through hole, and one end of the threaded hole of the toothed part of the driving wheel body 1 is connected with the arc-shaped groove. Therefore, during the rotation of the driving wheel body 1, the lubricating oil in the arc-shaped groove between the rotating rings 302 will drip from the lower end of the oil outlet to the outer end of the rotating ring 302 of the arc-shaped groove, and then flow out through the through hole in the threaded rod 203 and the pressing plate 204 to the contact position of the driving wheel body 1 and the track, so that the contact position of the driving wheel body 1 and the track is kept lubricated, the driving wheel body 1 and the track can be smoothly contacted, the friction between the outer end of the protective frame 202 and the inner side of the track is reduced, and thus the damage speed of the protective frame 202 is reduced.

[0032] Working principle: when the driving wheel body 1 rotates to drive the track to move, the toothed part at the outer end of the driving wheel body 1 contacts the inner side of the track, generating an impact on the protective frame 202, the rubber buffer pad 201 is compressed to produce slight deformation to offset part of the impact force, and at the same time, the protective frame 202 also moves slightly to buffer and protect the driving wheel body 1.

[0033] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprise," "comprises," and "comprising," or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, unless otherwise indicated herein, the terms "first," "second," "third," etc., are not intended to denote a physical order, quantity, or importance, but rather are used for the purpose of nomenclature.

Claims

1. A cushion drive wheel for a track walking device, comprising a drive wheel body (1), characterized in that: The outer end of the driving wheel body (1) is connected with a buffering mechanism; The buffering mechanism comprises a rubber buffer pad (201) connected to the outer end of the driving wheel body (1), the outer end of the rubber buffer pad (201) is connected with a protective frame (202), the inside of the toothed part of the driving wheel body (1) is connected with a threaded rod (203), and the end of the threaded rod (203) away from the center of the driving wheel body (1) is welded with a pressing plate (204).

2. The cushioning drive wheel for a track walking device according to claim 1, characterized by: The inside of the toothed part of the driving wheel body (1) is provided with a threaded hole at the middle position, the inside of the rubber buffer pad (201) is provided with a circular hole at the middle position, the inside of the protective frame (202) is provided with a buffer hole below the middle position, the inside of the protective frame (202) is provided with a groove above the middle position, the outside of the threaded rod (203) is threadedly connected with the inside of the threaded hole, the threaded rod (203) penetrates through the inside of the buffer hole, the outside of the threaded rod (203) is slidingly connected with the inside of the circular hole, and the lower side of the pressing plate (204) abuts against the bottom end of the inside of the groove.

3. The cushioning drive wheel for a track assembly of claim 1, wherein: The inside of the buffer hole in the protective frame (202) is provided with a gap with the outside of the threaded rod (203), and the edge of the inside of the groove in the protective frame (202) is provided with a gap with the edge of the outside of the pressing plate (204).

4. The cushioning drive wheel for a track assembly of claim 1, wherein: The inside and outside of the driving wheel body (1) is provided with a lubricating mechanism, the lubricating mechanism comprises a roller (301) connected to the inside of the driving wheel body (1), the inside of the driving wheel body (1) is connected with a rotating ring (302), the inside bottom end of the rotating ring (302) is fixedly connected with a counterweight (303), the inside front end of the driving wheel body (1) is provided with an adding pipe (304) above, and the other end of the adding pipe (304) is connected with a cover (305).

5. The cushioning drive wheel for a track assembly of claim 4, wherein: The inside of the driving wheel body (1) is connected with an arc-shaped groove, the front and back sides of the rotating ring (302) are slidingly connected with the front and back ends of the inside of the arc-shaped groove, the outside of the roller (301) is rollingly connected with the edge of the inside of the arc-shaped groove, and the outside of the rotating ring (302) is rollingly connected with the outside of the roller (301).

6. The cushioning drive wheel for a track assembly of claim 4, wherein: The end of the adding pipe (304) away from the cover (305) is fixed to the inside of the driving wheel body (1) above the front end of the rotating ring (302), the outside of the end of the adding pipe (304) away from the driving wheel body (1) is provided with external threads, the inside of the cover (305) is provided with internal threads, and the outside of the end of the adding pipe (304) away from the driving wheel body (1) is threadedly connected with the inside of the cover (305).

7. The cushioning drive wheel for a track assembly of claim 4, wherein: The inside lower end of the rotating ring (302) is provided with an oil outlet at the left and right ends of the counterweight (303), the inside upper end of the rotating ring (302) is provided with an air inlet hole, the inside middle positions of the threaded rod (203) and the adding pipe (304) are provided with through holes, and one end of the threaded hole provided in the toothed part of the driving wheel body (1) is connected with the arc-shaped groove.

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