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CN-224197534-U - Plunger safety wheel device, plunger device and bundling machine

CN224197534UCN 224197534 UCN224197534 UCN 224197534UCN-224197534-U

Abstract

The application discloses a plunger safety wheel device, a plunger structure and a bundling machine, wherein the safety wheel device comprises a first roller device, a first wheel body, a sleeve structure and a connecting piece, wherein the first roller device comprises a first installation shaft and a first wheel body, one end of the first installation shaft is in rotary connection with the first wheel body, the other end of the first installation shaft is used for extending into a first installation hole of a plunger, the first wheel body is used for being in contact with a track and rolling relative to the track along with movement of the plunger, the track is arranged relative to the plunger, the sleeve structure comprises a cylinder body and the connecting piece, the cylinder body is sleeved at the other end of the first installation shaft and is fixedly connected with the inner side wall of the first installation hole, and the connecting piece is connected with the cylinder body and the first installation shaft along the radial direction. The first roller device is added on the basis that the original plunger structure is provided with 4 rollers, in the using process, even if 1 roller shaft is broken, the whole plunger cannot be inclined greatly, and the normal operation cannot be influenced after the rollers on any side are broken.

Inventors

  • ZHANG HUI
  • DENG QI
  • YANG SHUQING

Assignees

  • 潍柴雷沃智慧农业科技股份有限公司

Dates

Publication Date
20260505
Application Date
20250529

Claims (10)

  1. 1. A plunger safety wheel device, comprising: The first roller device comprises a first mounting shaft and a first roller body, wherein one end of the first mounting shaft is rotationally connected with the first roller body, and the other end of the first mounting shaft is used for extending into a first mounting hole of a plunger; The bushing structure comprises a cylinder body and a connecting piece, wherein the cylinder body is sleeved at the other end of the first mounting shaft and is fixedly connected with the inner side wall of the first mounting hole, and the connecting piece is connected with the cylinder body and the first mounting shaft along the radial direction of the cylinder body and the first mounting shaft.
  2. 2. The plunger safety wheel device according to claim 1, further comprising a fixing plate fixedly arranged on the first mounting shaft, wherein a protruding structure is formed on the fixing plate and is used for being matched and connected with a groove structure correspondingly arranged on the plunger.
  3. 3. The plunger safety wheel device according to claim 1, further comprising a snap spring, wherein the other end of the first mounting shaft is provided with a snap spring groove for mounting the snap spring.
  4. 4. A plunger arrangement comprising a safety wheel arrangement as claimed in any one of claims 1 to 3.
  5. 5. The plunger device according to claim 4, further comprising a plunger and a second roller device, wherein the first roller device and the second roller device are provided on both sides of the plunger, respectively, and the sum of the number of the first roller device and the number of the second roller device on each side is not less than three.
  6. 6. The plunger assembly of claim 5, wherein said second roller assembly comprises: A plurality of second mounting shafts, the axes of which are parallel, and the axes of each of which is parallel to the axis of the first mounting shaft; The second wheel body is rotationally connected with one end of the second installation shaft, and the other end of the second installation shaft is fixedly connected with the plunger.
  7. 7. The plunger assembly of claim 6, further comprising a rail assembly including two rails disposed on opposite sides of the plunger, each of the first and second wheels contacting a corresponding one of the rails.
  8. 8. The plunger assembly of claim 4, further comprising a linkage structure connected to the connection structure at one end of the plunger.
  9. 9. A baler comprising a plunger arrangement as claimed in any one of claims 4 to 8.
  10. 10. The baler of claim 9, further comprising a driver for driving the plunger to move.

Description

Plunger safety wheel device, plunger device and bundling machine Technical Field The utility model relates to the technical field of bundling machines, in particular to a plunger safety wheel device, a plunger device and a bundling machine. Background The plunger is one of the core components of the baler, and the fodder is pushed into the forming chamber through the reciprocating motion of the plunger, and the fodder is compressed to form square bales. The plunger roller is arranged on the plunger and is contacted with the side wall guide rail of the forming chamber, friction is reduced in high-pressure reciprocating motion, and stable operation is ensured. At present, 4 roller structures are adopted in the industry, and a connecting rod pulls a plunger to reciprocate back and forth. In use, once one of the roller shafts breaks, the entire plunger tilts, causing damage to moving parts near the plunger. Disclosure of utility model The utility model aims to provide a plunger safety wheel device, a plunger device and a bundling machine, which can prevent normal operation from being affected after a roller on any side is broken. Embodiments of the present utility model are implemented as follows: in a first aspect, the present application provides a plunger safety wheel device comprising: The first roller device comprises a first mounting shaft and a first roller body, wherein one end of the first mounting shaft is rotationally connected with the first roller body, and the other end of the first mounting shaft is used for extending into a first mounting hole of a plunger; The bushing structure comprises a cylinder body and a connecting piece, wherein the cylinder body is sleeved at the other end of the first mounting shaft and is fixedly connected with the inner side wall of the first mounting hole, and the connecting piece is connected with the cylinder body and the first mounting shaft along the radial direction of the cylinder body and the first mounting shaft. In a possible implementation manner, the safety wheel device further comprises a fixing plate, wherein the fixing plate is fixedly arranged on the first mounting shaft, and a protruding structure is formed on the fixing plate and is used for being matched and connected with a groove structure correspondingly arranged on the plunger. In a possible implementation manner, the safety wheel device further comprises a clamp spring, and the other end of the first mounting shaft is provided with a clamp spring groove for mounting the clamp spring. In a second aspect, the present application also provides a plunger device, including the safety wheel device. In a possible implementation manner, the plunger device further comprises a plunger and a second roller device, the first roller device and the second roller device are respectively arranged on two sides of the plunger, and the sum of the number of the first roller device and the number of the second roller device on each side is not less than three. In a possible embodiment, the second roller device includes: A plurality of second mounting shafts, the axes of which are parallel, and the axes of each of which is parallel to the axis of the first mounting shaft; The second wheel body is rotationally connected with one end of the second installation shaft, and the other end of the second installation shaft is fixedly connected with the plunger. In a possible implementation manner, the plunger device further comprises a rail assembly, wherein the rail assembly comprises two rails respectively arranged on two sides of the plunger, and each first wheel body and each second wheel body are in contact with the corresponding rail. In a possible embodiment, the plunger device further comprises a connecting rod structure connected to the connecting structure at one end of the plunger. In a third aspect, the application also provides a bundling machine, which comprises the plunger device. In a possible embodiment, the baler further comprises a driver for driving the plunger to move. The embodiment of the utility model has the beneficial effects that: the first roller device is added on the basis that the original plunger structure is provided with 4 rollers, in the using process, even if 1 roller shaft is broken, the whole plunger cannot be inclined greatly, and the normal operation cannot be influenced after the rollers on any side are broken. In addition, the whole safety wheel device is fixed with the first mounting hole of the plunger, so that the first mounting shaft is axially fixed on the plunger, the first wheel body is prevented from being separated from the plunger when being stressed, the radial displacement of the first mounting shaft relative to the cylinder body is limited, and the axial stability of the first wheel body during rolling is ensured. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embod