Gearbox sealing device and rotary cultivator

Abstract

The utility model provides a gearbox sealing device which is used on a rotary cultivator and comprises a first side plate and a rotatable half shaft arranged on one side of the first side plate, a plurality of bearings are sleeved on the half shaft, bearing seats are arranged on the peripheries of the bearings, and the bearings are arranged on the first side plate. The bearing seat is detachably and fixedly connected with the first side plate; the first side plate is further provided with a sealing part playing a sealing role, and the sealing part comprises a combined gasket arranged on one side of the first side plate and a sealing gasket arranged on the other side of the first side plate. According to the gearbox sealing device of the structure, the sealing part is arranged on the first side plate, specifically, the sealing gasket is arranged on the left side of the side plate, and the combined gasket is arranged on the right side of the side plate, so that compared with a similar device of an existing structure, the sealing effect is better, the oil leakage phenomenon can be effectively avoided, and the maintenance cost is lower. In addition, the utility model further provides the rotary cultivator comprising the gearbox sealing device.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a transmission sealing device and a rotary tiller. Background Art

[0002] In recent years, with the continuous development of economy and technology, various structures of agricultural machinery, such as rotary tillers, have been more and more widely used in agricultural production activities.

[0003] A rotary tiller generally includes a frame, a first transmission is provided on the frame, a second transmission is provided at one or both ends of the frame, the first transmission is connected to the second transmission through a transmission shaft, and when the first transmission works, it drives the second transmission to work. During the working process, due to the relatively harsh working environment of the rotary tiller, there are often vibrations of varying degrees. Therefore, the paper gasket at the bearing seat is prone to cracking, resulting in frequent oil leakage. Moreover, the disassembly workload for replacing the paper gasket is relatively large, and both the maintenance and use costs are relatively high.

[0004] In summary, how to provide a transmission sealing device with better sealing effect and capable of effectively avoiding oil leakage, as well as a rotary tiller including such a transmission sealing device, has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a transmission sealing device with better sealing effect and capable of effectively avoiding oil leakage, as well as a rotary tiller including such a transmission sealing device.

[0006] The solution of the utility model is realized as follows: The utility model provides a transmission sealing device for a rotary tiller. The transmission sealing device includes a first side plate and a rotatable half shaft disposed on one side of the first side plate. A plurality of bearings are sleeved on the half shaft, a bearing seat is disposed on the outer periphery of the bearings, and the bearing seat is detachably and fixedly connected to the first side plate; a sealing portion for sealing is further provided on the first side plate, and the sealing portion includes a combined gasket disposed on one side of the first side plate and a sealing gasket disposed on the other side of the first side plate. For the transmission sealing device with this structure, by providing a sealing portion on the first side plate, specifically, a sealing gasket is provided on the left side of the first side plate and a combined gasket is provided on the right side. Compared with similar devices with existing structures, it has a better sealing effect, can effectively avoid oil leakage, and has a lower maintenance cost.

[0007] Another technical solution of the utility model is that on the above basis, the transmission sealing device further includes a first bolt, the combined gasket is sleeved on the first bolt and is disposed between the first bolt and the first side plate.

[0008] Another technical solution of the present utility model is based on the above, wherein the gasket is sleeved on the first bolt and is placed between the first side plate and the bearing seat.

[0009] Another technical solution of the present utility model is based on the above, wherein a sealing groove is further provided on the surface of the bearing seat in contact with the first side plate, and a sealing ring is further provided in the sealing groove.

[0010] Another technical solution of the present utility model is based on the above, wherein a second bolt is further provided on the outer edge of the first side plate, and the second bolt is disposed opposite to the first bolt.

[0011] Another technical solution of the present utility model is based on the above, wherein the transmission sealing device further includes a box cover, the box cover covers the end of the half shaft, and is fixedly arranged on the first side plate through the second bolt.

[0012] Another technical solution of the present utility model is based on the above, wherein a gasket for sealing is further provided between the box cover and the first side plate, and the gasket is sleeved on the second bolt.

[0013] In addition, the present utility model further provides a rotary tiller, which includes a frame, a first transmission is provided on the frame, a second transmission is provided at one end of the first transmission, a transmission sealing device is provided on the second transmission, and the transmission sealing device is the transmission sealing device according to any one of claims 1 to 7.

[0014] Another technical solution of the present utility model is based on the above, wherein a second side plate is further provided at the other end of the frame, the second side plate is disposed opposite to the first side plate, and a detachable front plow is further provided on the second side plate.

[0015] Another technical solution of the present utility model is based on the above, wherein a floating drag plate is further provided on the frame, rotatable cutter roller shafts are further provided on the first side plate and the second side plate, and a plurality of groups of blades are provided on the cutter roller shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0017] Figure 1 is a schematic structural diagram of a rotary tiller of the present utility model;

[0018] Figure 2 is a schematic structural diagram of a transmission sealing device of the present utility model;

[0019] Figure 3 Internal structure schematic diagram of Figure 2 ;

[0020] Figure 4 Is Figure 3 Schematic diagram of the structure of part A in

[0021] The corresponding relationship of the reference numerals is as follows:

[0022] 1 Box cover 2 Gasket 3 First side plate

[0023] 4 Sealing part

[0024] 401 First bolt 402 Combination gasket 403 Sealing gasket

[0025] 404 O-ring

[0026] 5 Second transmission 6 Bearing seat 7 Half shaft

[0027] 8 Second side plate 9 Front plow 10 Knife roller shaft

[0028] 11 First transmission 12 Frame 13 Drag plate

[0029] 14 Second bolt 15 Bearing 16 Blade Specific embodiments

[0030] The present invention will be described in detail below with reference to the accompanying drawings. The description of this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention. In addition, those skilled in the art can make corresponding combinations of the features in the embodiments and different embodiments in this document according to the description of this document.

[0031] The embodiments of the present invention are as follows. Please refer to Figures 1 to 4 The shown rotary tiller and transmission sealing device. For the transmission sealing device, it specifically includes a first side plate 3 and a rotatable half shaft 7 disposed on one side of the first side plate 3, that is, Figure 1 The left side shown. A plurality of bearings 15 are sleeved on the half shaft 7, and a bearing seat 6 is sleeved on the outer periphery of the bearing 15. The bearing seat 6 is detachably fixed to the first side plate 3. The first side plate 3 is also provided with a sealing part 4 that plays a sealing role. The sealing part 4 includes a combination gasket 402 disposed on one side of the first side plate 3, that is, Figure 4 The right side shown, and a sealing gasket 403 disposed on the other side of the first side plate 3, that is, Figure 4 The left side shown. For the transmission sealing device with this structure, by setting the sealing part 4 on the first side plate 3, specifically setting the sealing gasket 403 on the left side of one side plate and the combination gasket 402 on the right side, compared with a similar device with the existing structure, its sealing effect is better, and it can effectively avoid oil leakage, and the maintenance cost is also lower.

[0032] On the basis of the above-mentioned embodiments, in another embodiment of the present utility model, as Figure 4 shown, the transmission sealing device further specifically includes a first bolt 401. A combined gasket 402 is sleeved on the first bolt 401 and is placed between the first bolt 401 and the first side plate 3. That is, the left side of the combined gasket 402 abuts against the first side plate 3, and the right side of the combined gasket 402 abuts against the bolt head of the first bolt 401, and is fixed by the first bolt 401 to play a further sealing role.

[0033] On the basis of the above-mentioned embodiments, in another embodiment of the present utility model, as Figure 4 shown, a sealing gasket 403 is sleeved on the first bolt 401 and is placed between the first side plate 3 and the bearing seat 6. Specifically, the left side of the sealing gasket 403 abuts against the bearing seat 6, and the right side of the sealing gasket 403 abuts against the first side plate 3. By arranging the sealing gasket 403 and the combined gasket 402 on the left and right sides of the first side plate 3 respectively in the above setting manner, the sealing effect can be effectively achieved.

[0034] On the basis of the above-mentioned embodiments, in another embodiment of the present utility model, as Figure 4 shown, a sealing groove is further formed on the surface of the bearing seat 6 in contact with the first side plate 3, and a sealing ring is also provided in the sealing groove. The sealing ring is preferably an O-ring 404, and its material is preferably rubber or plastic.

[0035] On the basis of the above-mentioned embodiments, in another embodiment of the present utility model, as Figure 2 and Figure 3 shown, several second bolts 14 are further provided on the outer edge of the first side plate 3, and the second bolts 14 are arranged opposite to the first bolt 401.

[0036] On the basis of the above-mentioned embodiments, in another embodiment of the present utility model, as Figure 2 and Figure 3 shown, the transmission sealing device further includes a box cover 1. The box cover 1 covers the end of the half shaft 7, that is, the right end shown in the figure, and is fixedly arranged on the first side plate 3 through several second bolts 14, that is, on the right side of the first bolt 401.

[0037] On the basis of the above-mentioned embodiments, in another embodiment of the present utility model, as Figure 2 and Figure 3 shown, in order to improve the sealing effect, a gasket 2 for sealing is further provided between the box cover 1 and the first side plate 3. The gasket 2 is sleeved on the second bolt 14. After the second bolt 14 is tightened, the left and right sides of the gasket 2 respectively abut against the first side plate 3 and the box cover 1.

[0038] For the transmission sealing device of this structure, by arranging a plurality of combined gaskets 402 and sealing gaskets 403 between the bearing 15 and the second transmission 5, therefore, the sealing effect at the bearing 15 is better, and the occurrence of oil leakage can be effectively avoided, and the use and maintenance costs are also lower.

[0039] In addition, the present utility model also proposes a rotary tiller, as Figure 1 shown, specifically including a frame 12, a first transmission 11 is provided on the frame 12, one end of the first transmission 11, that is, the right end shown in the figure, is provided with a second transmission 5, and a transmission sealing device is provided on the second transmission 5. Specifically, the transmission sealing device is the transmission sealing device as described above.

[0040] On the basis of the above embodiment, in another embodiment of the present utility model, as Figure 1 shown, at the other end of the frame 12, that is, Figure 1 the left end shown in the figure, a second side plate 8 is further provided. The second side plate 8 is arranged opposite to the first side plate 3, and a detachable front plow 9 is further provided on the second side plate 8.

[0041] On the basis of the above embodiment, in another embodiment of the present utility model, as Figure 1 shown, a floating drag plate 13 is further provided on the frame 12, and rotatable cutter roller shafts 10 are further provided on the first side plate 3 and the second side plate 8. A plurality of groups of blades 16 are provided on the cutter roller shafts 10. When the cutter roller shafts 10 rotate, a plurality of groups of blades 16 are driven to rotate together.

[0042] The rotary tiller of this structure, correspondingly, has the advantages of the above-mentioned transmission sealing device.

[0043] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and retouches can still be made, and these improvements and retouches should also be regarded as the protection scope of the present utility model.

Claims

1. A transmission sealing device is used on a rotary tiller, characterized in that, The transmission sealing device includes a first side plate and a rotatable half shaft disposed on one side of the first side plate. A plurality of bearings are sleeved on the half shaft, and a bearing seat is disposed on the outer periphery of the bearing. The bearing seat is detachably and fixedly connected to the first side plate; A sealing portion for sealing is further provided on the first side plate. The sealing portion includes a combined gasket disposed on one side of the first side plate and a sealing gasket disposed on the other side of the first side plate.

2. The gearbox sealing device according to claim 1, wherein, The transmission sealing device further includes a first bolt. The combined gasket is sleeved on the first bolt and is disposed between the first bolt and the first side plate.

3. The transmission sealing device according to claim 2, characterized in that, The sealing gasket is sleeved on the first bolt and is disposed between the first side plate and the bearing seat.

4. The transmission sealing device according to claim 3, wherein, A sealing groove is further formed on the surface of the bearing seat in contact with the first side plate, and a sealing ring is further disposed in the sealing groove.

5. The transmission sealing device according to claim 4, characterized in that, A second bolt is further provided on the outer edge of the first side plate, and the second bolt is disposed opposite to the first bolt.

6. The transmission sealing device according to claim 5, characterized in that, The transmission sealing device further includes a box cover. The box cover covers the end of the half shaft and is fixedly disposed on the first side plate through the second bolt.

7. The transmission sealing device according to claim 6, characterized in that A gasket for sealing is further provided between the box cover and the first side plate, and the gasket is sleeved on the second bolt.

8. A rotary tiller, comprising a frame, a first transmission is provided on the frame, a second transmission is provided at one end of the first transmission, and a transmission sealing device is provided on the second transmission, characterized in that, The transmission sealing device is the transmission sealing device according to any one of claims 1 to 7.

9. The rotary tiller according to claim 8, wherein, A second side plate is further provided at the other end of the frame. The second side plate is disposed opposite to the first side plate, and a detachable front plow is further provided on the second side plate.

10. The rotary tiller according to claim 9, characterized in that, A floating drag plate is further provided on the frame. A rotatable cutter roller shaft is further provided on the first side plate and the second side plate, and a plurality of groups of blades are provided on the cutter roller shaft.

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