Walking wheel of ditcher and ditcher

Abstract

The utility model discloses a ditcher walking wheel and a ditcher, and relates to the ditcher driving technical field, a wheel and a planetary reduction gear, a rotating shaft of a center wheel of the planetary reduction gear is coaxially and fixedly connected to a wheel shaft of the wheel, a gear ring of the planetary reduction gear is fixedly connected to a wheel hub of the wheel, the wheel shaft of the wheel and the wheel hub of the wheel are coaxially arranged, and the planetary reduction gear is fixedly connected to the wheel shaft of the wheel. Wheel shafts of the wheels are in transmission connection with the output end of a driving device of the ditcher. According to the walking wheel of the ditcher, provided by the utility model, the wheel provided with the planetary speed reducer can realize speed reduction, and a speed reducing mechanism does not need to be additionally arranged outside the walking wheel, so that the size of the ditcher can be reduced, and the ditcher is more convenient to operate; the ditcher provided with the walking wheel of the ditcher is smaller in size and more convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of trenching machine driving, in particular to a trenching machine running wheel and a trenching machine. Background Art

[0002] In agricultural production, ridge cultivation is the most common cultivation mode. Ridge cultivation has the advantages of promoting the growth of crop roots, drainage and waterlogging prevention, and centralized fertilization. Ridge cultivation requires digging of ridges. At present, digging of ridges is usually mechanized by using a hand-held open ridger. However, the existing hand-held furrowing and ridging machines, due to the different rotation speeds of the structure used for walking and the structure used for furrowing and ridging, mostly need to be driven by two different sets of drive devices, and the provision of two sets of drive devices will increase the manufacturing cost. Chinese patent CN208175307U discloses a new type of orchard furrowing machine, in which the power output from the diesel engine reaches the additional reducer through a V-belt drive, and after deceleration, it is transmitted to the gearbox through the No. 1 chain drive to drive the furrowing machine forward, and the No. 2 chain drive is drawn out from the intermediate shaft of the additional reducer to drive the working chain to rotate and furrow. The furrowing machine changes the transmission ratio through the additional reducer, and uses a set of drive devices to simultaneously drive the furrowing machine forward and furrowing, thereby realizing the requirements of different walking and working speeds. However, the trencher needs to use an additional reducer arranged outside the structure for traveling to reduce speed, and the additional reducer has multiple gears meshing with each other and components for connection, which takes up a large space, and the size of the trencher also needs to be increased, and operation (such as turning or going uphill) is inconvenient. Therefore, there is an urgent need for a trencher travel wheel and a trencher of smaller size that can reduce the size of the trencher and make operation more convenient. Utility Model Content

[0003] The utility model aims to provide a trencher travel wheel and a trencher to solve the problems existing in the above-mentioned prior art, and can reduce the size of the trencher to make the operation of the trencher more convenient.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a trenching machine travel wheel, comprising: a wheel and a planetary reduction device, the rotating shaft of the central wheel of the planetary reduction device is coaxially fixedly connected to the wheel axle of the wheel, the gear ring of the planetary reduction device is fixedly connected to the wheel hub of the wheel, the wheel axle of the wheel is coaxially arranged with the wheel hub of the wheel, and the wheel axle of the wheel is transmission-connected to the output end of the driving device of the trenching machine.

[0006] Preferably, the planetary reduction device includes the ring gear, the center wheel, a support structure and a plurality of planetary wheels, the ring gear is coaxially sleeved outside the center wheel, the support structure is arranged between the ring gear and the center wheel, each of the planetary wheels is rotatably connected to the support structure around an axis in the same direction as the rotating axis of the center wheel, and the center wheel and the ring gear form a transmission connection through the planetary wheels.

[0007] Preferably, all the planetary gears are divided into multiple wheel sets, and the planetary gears on each wheel set are arranged sequentially along the radial direction of the ring gear, the planetary gear close to the center wheel is meshed with the center wheel, the planetary gear close to the ring gear is meshed with the ring gear, and two adjacent planetary gears in the same wheel set are meshed with each other.

[0008] Preferably, the support structure includes a plurality of support members and bearings, the inner ring of the bearing is fixedly sleeved outside the rotating shaft of the center wheel, the support members are arranged in sequence around the bearing, one end of each support member is fixedly connected to the outer ring of the bearing, and each support member is provided with a wheel set.

[0009] Preferably, the support member includes two support plates, and two bearings are provided. The inner rings of the two bearings are fixedly mounted outside the rotating shaft of the center wheel, and there is a gap between the two bearings. One end of each of the two support plates is fixedly connected to the outer ring of the bearing. The two support plates are parallel to each other and have a gap in the extension direction of the rotating shaft of the center wheel, and a wheel set is provided between the two support plates.

[0010] Preferably, the planetary reduction device also includes two end covers, the outer side of the center wheel is provided with inner teeth surrounding the center wheel, the inner side of the ring gear is provided with outer teeth surrounding the ring gear, and the two end covers respectively cover two sides of the planetary reduction device and are used to seal the inner teeth, the outer teeth and each of the planetary wheels.

[0011] Preferably, the wheel includes two hubs and a plurality of spokes, the side surfaces of the two hubs are parallel to each other, each spoke is perpendicular to the side surface of the hubs, each spoke is arranged in sequence along the circumference of the two hubs and each of its two ends is fixedly connected to the two hubs, and the ring gear of the planetary reduction device is fixedly connected to one of the hubs.

[0012] Preferably, the two wheel hubs are an inner hub and an outer hub, respectively, the inner hub is annular, the gear ring is coaxially arranged with the inner hub and the circumferential edge is fixedly connected to the inner side of the inner hub; the outer hub comprises an inner support ring and an outer ring, the outer ring is coaxially sleeved outside the inner support ring, the inner side of the outer ring and the outer side of the inner support ring are spaced apart, one end of each of the wheel spokes is located between the outer ring and the inner support ring and fixedly connected to the inner side of the outer ring and the outer side of the inner support ring, and the other end of each of the wheel spokes is fixedly connected to the outer side of the inner hub.

[0013] The utility model also provides a trenching machine, including a body, a driving device, a transmission device, a trenching device and the above-mentioned trenching machine walking wheel, the trenching device is arranged on one side of the body, the driving device is arranged on the body and has a first output end, the output end of the driving device is connected to the input end of the transmission device, the transmission device has a second output end and a third output end, the second output end is connected to the wheel axle of the wheel, and the third output end is connected to the input end of the trenching device.

[0014] Preferably, it also includes a mud plate, which is fixedly connected to the vehicle body, the lower side of the mud plate is spaced apart from the outer side of the wheel, and the length of the mud plate along the wheel axle direction is not less than the length of the wheel along the wheel axle direction.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The utility model provides a trenching machine travel wheel, the trenching machine driving device will drive the wheel axle of the travel wheel to rotate, and drive the wheel axle of the center wheel to rotate, and then drive the center wheel to rotate, the center wheel can drive the ring gear to rotate through gear transmission, and the ring gear can drive the wheel to rotate at a speed less than the output end of the driving device. Since the planetary reduction device is installed in the wheel, the wheel itself can achieve deceleration, and there is no need to set a large-sized reduction mechanism (such as a reduction gear box) outside the wheel, thereby reducing the size of the trenching machine. The utility model also provides a trenching machine, the same set of driving devices can simultaneously drive the travel of the travel wheel and the work of the trenching machine, because the trenching machine travel wheel is provided, there is no need to set a large-sized reduction mechanism outside the travel wheel to achieve deceleration, and the size of the trenching machine can be reduced. Therefore, the trenching machine travel wheel provided by the utility model has a simple structure, the wheel installed with the planetary reduction device can achieve deceleration itself, and there is no need to set a reduction mechanism outside the travel wheel, which can reduce the size of the trenching machine and make the operation of the trenching machine more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A three-dimensional structural diagram of the traveling wheel of the trenching machine provided by the utility model at one angle;

[0019] Figure 2 for Figure 1 A three-dimensional structural diagram of the middle trencher's travel wheels from another angle;

[0020] Figure 3 A three-dimensional structural diagram of a planetary reduction device in a traveling wheel of a trenching machine provided by the utility model;

[0021] Figure 4 A three-dimensional structural diagram of the planetary reduction device in the traveling wheel of the trenching machine provided by the utility model after the end cover is removed;

[0022] Figure 5 It is a side view of the planetary reduction device in the traveling wheel of the trenching machine provided by the utility model after the gear ring is removed;

[0023] Figure 6 A side view of the trenching machine provided by the utility model;

[0024] In the figure: 1-wheel, 11-wheel hub, 111-inner wheel hub, 112-outer wheel hub, 1121-inner support ring, 1122-outer ring, 12-wheel spokes, 2-planetary reduction device, 21-gear ring, 22-center wheel, 23-support structure, 231-support member, 2311-support plate, 232-bearing, 24-planetary gear, 25-end cover, 3-body, 4-driving device, 5-ditching device, 6-mud plate, 7-fixed plate, 8-transmission device. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model aims to provide a trencher travel wheel and a trencher to solve the problems existing in the above-mentioned prior art, and can reduce the size of the trencher to make the operation of the trencher more convenient.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] The utility model provides a trenching machine travel wheel, such as Figure 1-5 As shown, it includes: a wheel 1 and a planetary reduction device 2, the rotating shaft of the center wheel 22 of the planetary reduction device 2 is coaxially fixedly connected to the wheel axle of the wheel 1, the ring gear 21 of the planetary reduction device 2 is fixedly connected to the wheel hub 11 of the wheel 1, the wheel axle of the wheel 1 is coaxially arranged with the wheel hub 11 of the wheel 1, and the wheel axle of the wheel 1 is transmission-connected with the output end of the driving device 4 of the trencher. The trencher travel wheel provided by the utility model, the trencher driving device 4 will drive the wheel axle of the travel wheel to rotate, and drive the wheel axle of the center wheel 22 to rotate, and then drive the center wheel 22 to rotate, the center wheel 22 can drive the ring gear 21 to rotate through gear transmission, and the ring gear 21 can drive the wheel 1 to rotate at a speed less than the output end of the driving device 4. Since the planetary reduction device 2 is installed in the wheel 1, the wheel 1 itself can achieve deceleration, and there is no need to set a large-sized deceleration mechanism (such as a deceleration gear box) outside the wheel 1, thereby reducing the size of the trencher and making the operation of the trencher more convenient. Among them, the planetary reduction device 2 can use the planetary reduction device 2 in the prior art.

[0029] In a preferred implementation of the present embodiment, the planetary reduction device 2 includes a ring gear 21, a center wheel 22, a support structure 23 and a plurality of planetary wheels 24. The ring gear 21 is coaxially sleeved outside the center wheel 22, the support structure 23 is arranged between the ring gear 21 and the center wheel 22, and each planetary wheel 24 is rotatably connected to the support structure 23 around an axis in the same direction as the rotation axis of the center wheel 22, and the center wheel 22 and the ring gear 21 are connected by transmission through each planetary wheel 24. When the drive device 4 drives the wheel shaft to rotate, the rotational speed of the rotational shaft of the center wheel 22 and the center wheel 22 are equal to the rotational speed of the wheel shaft, and the rotational speed of the wheel 1 is equal to the rotational speed of the ring gear 21. Since the number of external teeth is greater than the number of internal teeth, under the transmission of the planetary wheels 24, the rotational speed of the ring gear 21 is less than the rotational speed of the center wheel 22, thereby reducing the rotational speed output by the drive device 4 to a speed suitable for the operation of the wheel 1. Among them, the center wheel 22 is fixedly sleeved outside the rotational shaft of the center wheel 22.

[0030] In a preferred implementation of the first embodiment of the present invention, all the planetary gears 24 are divided into a plurality of wheel sets, and the planetary gears 24 on each wheel set are sequentially arranged along the radial direction of the ring gear 21, the planetary gear 24 close to the center wheel 22 meshes with the center wheel 22, the planetary gear 24 close to the ring gear 21 meshes with the ring gear 21, and two adjacent planetary gears 24 in the same wheel set mesh with each other. By using a plurality of planetary gears 24 to form a wheel set, and by using the wheel set to form a transmission connection between the center wheel 22 and the ring gear 21, compared with only one planetary gear 24 arranged in one radial direction of the ring gear 21, the plurality of planetary gears 24 can disperse the total output torque, reduce the output torque received by a single planetary gear 24, thereby reducing the loss of the planetary gear 24 and extending the service life.

[0031] In a preferred implementation of this embodiment, the support structure 23 includes a plurality of support members 231 and a bearing 232. The inner ring of the bearing 232 is fixedly sleeved outside the rotating shaft of the center wheel 22. Each support member 231 is sequentially arranged around the bearing 232. One end of each support member 231 is fixedly connected to the outer ring of the bearing 232. Each support member 231 is provided with a wheel set. The support member 231 can fix the rotating shaft of the planetary gear 24 to improve the integrity of the device. When the center wheel 22 rotates, the rotation speed of the ring gear 21 = the rotation speed of the center wheel 22 (the number of inner teeth / the number of outer teeth).

[0032] In a preferred implementation of this embodiment, the support member 231 includes two support plates 2311, two bearings 232 are provided, the inner rings of the two bearings 232 are fixedly sleeved outside the rotating shaft of the center wheel 22, there is a gap between the two bearings 232, one end of each of the two support plates 2311 is fixedly connected to the outer ring of the bearing 232, the two support plates 2311 are parallel to each other and there is a gap in the extension direction of the rotating shaft of the center wheel 22, and a wheel set is provided between the two support plates 2311. The two support plates 2311 are used to form a support member, and the planetary gear 24 is arranged between the two support plates 2311, so that the firmness of the connection between the planetary gear 24 and the support plate is enhanced, and the reliability of the connection is stronger. Among them, two fixed disks 7 are also sleeved outside the outer ring of the bearing 232, and the two fixed disks 7 are located on the two sides of the two support plates 2311 that are away from each other. The two fixed disks 7 are fixed together by bolts, and the two fixed disks 7 are provided with shaft holes, and the wheel axle of the planetary gear 24 is rotatably connected with the shaft hole.

[0033] In a preferred implementation of the first embodiment of the present invention, the planetary reduction gear 2 further includes two end covers 25, the outer side of the center wheel 22 is provided with inner teeth surrounding the center wheel 22, the inner side of the ring gear 21 is provided with outer teeth surrounding the ring gear 21, and the two end covers 25 respectively cover the two sides of the planetary reduction gear 2 and are used to seal the inner teeth, outer teeth and each planetary gear 24. When the running wheels are running in a wet field, the mud and sewage will be blocked by the end covers 25, and the inner teeth, outer teeth and planetary gears 24 inside the planetary reduction gear 2 will not be easily affected by moisture and rust. Among them, the circumferential edge of the end cover 25 is connected to the circumferential edge of the ring gear 21 by bolts.

[0034] In a preferred implementation of the present embodiment, the wheel 1 includes two wheel hubs 11 and a plurality of wheel spokes 12. The sides of the two wheel hubs 11 are parallel to each other. Each wheel spoke 12 is perpendicular to the side of the wheel hub 11. Each wheel spoke 12 is sequentially arranged along the circumference of the two wheel hubs 11 and each of the two ends is fixedly connected to the two wheel hubs 11. The ring gear 21 of the planetary reduction device 2 is fixedly connected to one wheel hub 11. By arranging two wheel hubs 11 parallel to each other and arranging a plurality of wheel spokes 12 between the wheel hubs 11 along the circumference of the wheel hubs 11, the contact area between the wheel 1 and the ground is increased, and the stability during travel is improved. Among them, the wheel spokes 12 are preferably angle steel.

[0035] In a preferred implementation manner of this embodiment, the two wheel hubs 11 are respectively an inner wheel hub 111 and an outer wheel hub 112, the inner wheel hub 111 is annular, the gear ring 21 is coaxially arranged with the inner wheel hub 111 and the circumferential edge is fixedly connected to the inner side of the inner wheel hub 111; the outer wheel hub 112 includes an inner support ring 1121 and an outer ring 1122, the outer ring 1122 is coaxially sleeved outside the inner support ring 1121, the inner side of the outer ring 1122 and the outer side of the inner support ring 1121 are spaced, one end of each wheel spoke 12 is located between the outer ring 1122 and the inner support ring 1121 and is fixedly connected to the inner side of the outer ring 1122 and the outer side of the inner support ring 1121, and the other end of each wheel spoke 12 is fixedly connected to the outer side of the inner wheel hub 111. By fixing the circumferential edge of the gear ring 21 to the inner side of the inner hub 111, the size of the running wheel can be further reduced compared to fixing the gear ring 21 to the outer side of the inner hub 111; by fixing each wheel spoke 12 between the outer ring 1122 and the inner support ring 1121, the integrity of the wheel 1 is enhanced.

[0036] Embodiment 2

[0037] This embodiment provides a trenching machine, such as Figure 6As shown, it includes a body 3, a drive device 4, a transmission device 8, a trenching device 5 and the trenching machine running wheel in Example 1, the trenching device 5 is arranged on one side of the body 3, the drive device 4 is arranged on the body 3 and has a first output end, the output end of the drive device 4 is connected to the input end of the transmission device 8, the transmission device 8 has a second output end and a third output end, the second output end is connected to the axle of the wheel 1, and the third output end is connected to the input end of the trenching device 5. The trenching machine provided by the utility model, under the drive of the same drive device 4, the rotation speeds of the second output end and the third output end are the same, while the rotation speeds required by the trenching device 5 and the running wheel are different (the rotation speed required by the trenching device 5 is faster), at this time, the speed reduction can be achieved by setting the trenching machine running wheel in Example 1, and at the same time, there is no need to set a larger-sized speed reduction mechanism in the transmission device 8, which reduces the size of the trenching machine and makes the operation of the trenching machine more convenient.

[0038] In a preferred implementation of this embodiment, a mud plate 6 is further included. The mud plate 6 is fixedly connected to the vehicle body 3. There is a gap between the lower side of the mud plate 6 and the outer side of the wheel 1. The length of the mud plate 6 along the axle direction of the wheel 1 is not less than the length of the wheel 1 along the axle direction of the wheel 1. When the trencher is traveling in a sticky field environment, the mud can easily adhere to the wheel 1 in layers as the wheel 1 rolls and gradually accumulates and becomes thicker, thus affecting the normal rotation of the wheel 1. After the mud plate 6 is set, the thicker mud can be scraped off by maintaining a suitable gap between the mud plate 6 and the wheel 1. The remaining small amount of mud will not affect the normal operation of the wheel 1 (after the operation is completed, the remaining mud can be cleaned with a water gun), and the running wheel will also run more smoothly.

[0039] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A trenching machine travel wheel, characterized in that: include: A wheel and a planetary reduction device, wherein the rotating shaft of the center wheel of the planetary reduction device is coaxially fixedly connected to the wheel axle of the wheel, the ring gear of the planetary reduction device is fixedly connected to the wheel hub of the wheel, the wheel axle of the wheel is coaxially arranged with the wheel hub, and the wheel axle of the wheel is drivingly connected to the output end of the driving device of the trencher.

2. The trencher travel wheel according to claim 1, characterized in that: The planetary reduction device includes the ring gear, the center wheel, a support structure and a plurality of planetary wheels. The ring gear is coaxially sleeved outside the center wheel, and the support structure is arranged between the ring gear and the center wheel. Each of the planetary wheels is rotatably connected to the support structure around an axis in the same direction as the rotating axis of the center wheel, and the center wheel and the ring gear form a transmission connection through the planetary wheels.

3. The trencher travel wheel according to claim 2, characterized in that: All the planetary gears are divided into multiple wheel sets, and the planetary gears on each wheel set are arranged in sequence along the radial direction of the ring gear. The planetary gear close to the center wheel is meshed with the center wheel, and the planetary gear close to the ring gear is meshed with the ring gear. Two adjacent planetary gears in the same wheel set are meshed with each other.

4. The trencher travel wheel according to claim 3, characterized in that: The support structure includes multiple support members and bearings. The inner ring of the bearing is fixedly sleeved outside the rotating shaft of the center wheel. The support members are arranged in sequence around the bearing. One end of each support member is fixedly connected to the outer ring of the bearing. Each support member is provided with a wheel set.

5. The trencher travel wheel according to claim 4, characterized in that: The support member includes two support plates, and two bearings are provided. The inner rings of the two bearings are fixedly sleeved outside the rotating shaft of the center wheel, and there is a gap between the two bearings. One end of each of the two support plates is fixedly connected to the outer ring of the bearing. The two support plates are parallel to each other and have a gap in the extension direction of the rotating shaft of the center wheel, and a wheel set is arranged between the two support plates.

6. The trencher travel wheel according to claim 2, characterized in that: The planetary reduction gear also includes two end covers. The outer side of the center wheel is provided with inner teeth surrounding the center wheel, and the inner side of the ring gear is provided with outer teeth surrounding the ring gear. The two end covers respectively cover the two sides of the planetary reduction gear and are used to seal the inner teeth, the outer teeth and each of the planetary wheels.

7. The trencher travel wheel according to claim 1, characterized in that: The wheel includes two wheel hubs and a plurality of wheel spokes, the side surfaces of the two wheel hubs are parallel to each other, each wheel spoke is perpendicular to the side surface of the wheel hub, each wheel spoke is arranged in sequence along the circumference of the two wheel hubs and each of the two ends is fixedly connected to the two wheel hubs, and the ring gear of the planetary reduction device is fixedly connected to one of the wheel hubs.

8. The trencher travel wheel according to claim 7, characterized in that: The two wheel hubs are respectively an inner wheel hub and an outer wheel hub, the inner wheel hub is annular, the gear ring is coaxially arranged with the inner wheel hub and the circumferential edge is fixedly connected to the inner side of the inner wheel hub; the outer wheel hub comprises an inner support ring and an outer ring, the outer ring Coaxial It is sleeved outside the inner support ring, and there is a gap between the inner side of the outer ring and the outer side of the inner support ring. One end of each of the spokes is located between the outer ring and the inner support ring and is fixedly connected to the inner side of the outer ring and the outer side of the inner support ring, and the other end of each of the spokes is fixedly connected to the outer side of the inner hub.

9. A trenching machine, characterized in that: The invention comprises a vehicle body, a driving device, a transmission device, a trenching device and a trenching machine travel wheel as described in any one of claims 1 to 8, wherein the trenching device is arranged on one side of the vehicle body, the driving device is arranged on the vehicle body and has a first output end, the output end of the driving device is connected to the input end of the transmission device, the transmission device has a second output end and a third output end, the second output end is connected to the wheel axle of the wheel, and the third output end is connected to the input end of the trenching device.

10. The trenching machine according to claim 9, characterized in that: It also includes a mud plate, which is fixedly connected to the vehicle body, with a lower side of the mud plate spaced apart from an outer side of the wheel, and a length of the mud plate along the wheel axle direction not less than a length of the wheel along the wheel axle direction.

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