Rear pressing plate disassembling and assembling structure

Abstract

The utility model discloses a rear pressing plate dismounting and mounting structure, and belongs to the field of rotary cultivators. The rear pressing plate disassembling and assembling structure comprises a rotary cultivator rack and a rear pressing plate assembly. The rear pressing plate assembly is mounted on the rack of the rotary cultivator; the mounting plates are fixedly connected to the outer sides of the two ends of the rotary cultivator rack; the fixed plate is detachably mounted on the mounting plate; a limiting pull rod is installed on one side of the fixing plate and comprises a handle part located on one side of the fixing plate and a limiting part formed by penetrating through the other side of the fixing plate. The rotating shaft is fixedly connected to the fixed plate; a first through hole for providing space for the mounting plate through which the rotating shaft penetrates is formed in the mounting plate; one end of the rotating shaft penetrates through the first through hole and extends to one side, close to the rack of the rotary cultivator, of the mounting plate. The rear pressing plate dismounting and mounting structure has the beneficial effects that the rear pressing plate can be prevented from being in contact with the rotary blade, and the rear pressing plate is convenient to mount and dismount.

Description

Technical Field

[0001] The present application relates to the field of rotary tillers, and in particular to a rear pressure plate disassembly and assembly structure. Background Art

[0002] A rotary tiller is a tilling machine that is used in conjunction with a tractor to complete plowing and harrowing operations. It is widely used because of its strong soil crushing ability and flat surface after plowing. It can also cut up the root stubble buried below the surface, which is convenient for the operation of the seeder and provides a good seed bed for later sowing. It is divided into two types: horizontal axis and vertical axis according to the configuration of the rotary tiller shaft. Correct use and adjustment of the rotary tiller is very important to maintain its good technical condition and ensure the quality of tillage. Many models do not have a rear pressure plate limiter. During the operation of the rotary tiller, the rear pressure plate is easily in contact with the rotating rotary tiller, causing the rear pressure plate to deform. There is no handle on the fixed plate, which is not easy to install or disassemble, especially difficult to disassemble, and it is difficult to remove without the help of tools.

[0003] A rear pressure plate disassembly and assembly structure is now provided. Utility Model Content

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a rear pressure plate disassembly and assembly structure, including: a rotary tiller frame and a rear pressure plate assembly; the rear pressure plate assembly is installed on the rotary tiller frame;

[0006] The rear pressure plate disassembly and assembly structure also includes:

[0007] A mounting plate is fixedly connected to the outer sides of both ends of the rotary tiller frame;

[0008] Fixed plate, disassembled and installed on the mounting plate;

[0009] Wherein, a limit pull rod is installed on one side of the fixing plate, and the limit pull rod comprises: a handle portion located on one side of the fixing plate and a limit portion formed through the other side of the fixing plate;

[0010] A rotating shaft, fixedly connected to the fixed plate;

[0011] The mounting plate is provided with a first through hole to provide space for the mounting plate through which the rotating shaft passes, one end of the rotating shaft passes through the first through hole and extends to a side of the mounting plate close to the frame of the rotary tiller, the mounting plate is provided with a second through hole to provide space for the limiting part to pass through the mounting plate, and the limiting part passes through the second through hole;

[0012] The side fender is fixedly connected to the mounting plate;

[0013] The rear pressure plate assembly includes:

[0014] The bushing is sleeved on the rotating shaft;

[0015] The rear pressure plate is fixedly connected to the bushing.

[0016] Furthermore, the fixing plate is installed on the rotary tiller frame through the first connection assembly;

[0017] The first connection assembly includes: the first bolt and the first nut;

[0018] The fixing plate is provided with a first through hole, and the first bolt passes through the first through hole and is threadedly connected to the first nut.

[0019] Furthermore, the rear pressure plate assembly further includes:

[0020] The mounting part is fixedly connected to the rotary tiller frame;

[0021] The square pipe is fixedly connected to the mounting plate;

[0022] The adjusting spacer sleeve is rotatably connected to the mounting part;

[0023] The rotating bracket is fixedly connected to the rear pressure plate;

[0024] The spring adjusting rod is fixedly connected to the adjusting spacer sleeve;

[0025] Wherein, the lower end of the spring adjusting rod is rotatably connected to the rotating bracket;

[0026] The adjusting nut is threadedly connected to the upper end of the spring adjusting rod;

[0027] The upper adjusting spring has two ends respectively abutting directly or indirectly against the adjusting nut and the adjusting spacer sleeve;

[0028] The spring adjusting sleeve is installed on the spring adjusting rod;

[0029] The lower adjusting spring has two ends respectively abutting directly or indirectly against the spring adjusting rod and the adjusting spacer sleeve.

[0030] Furthermore, a plurality of adjusting holes are provided on the spring adjusting rod, a first pin hole is provided on the spring adjusting sleeve, and a first pin shaft is installed in the first pin hole, and the first pin shaft can be inserted into the first pin hole and one of the adjusting holes.

[0031] Furthermore, the side fender is fixedly connected to the mounting plate through the second connection assembly;

[0032] The second connection assembly includes: the second bolt and the second nut;

[0033] The side fender is provided with a second through hole, and a second bolt passes through the second through hole and is threadedly connected to a second nut.

[0034] Furthermore, a first mounting hole is provided at the lower end of the spring adjusting rod, a second mounting hole is provided on the rotating bracket, a pin is inserted into the first mounting hole and the second mounting hole, a second pin hole is provided at one end of the pin, and a second pin shaft is installed in the second pin hole, and the second pin shaft can be inserted into the second pin hole.

[0035] The beneficial effect of the present application is that: a rear pressing plate disassembly and assembly structure is provided, which can limit the contact between the rear pressing plate and the rotary tillage knife and facilitate the installation and disassembly of the rear pressing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objectives, and advantages of the present application more obvious. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application.

[0037] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the elements and components are not necessarily drawn to scale.

[0038] In the drawings:

[0039] Figure 1 is the overall schematic diagram according to the embodiment of the present application;

[0040] Figure 2 is the structural schematic diagram of a part of the embodiment, mainly showing the structure of the spring adjusting rod;

[0041] Figure 3 is the structural schematic diagram of a part of the embodiment, mainly showing the structure of the fixing plate;

[0042] Figure 4 is the structural schematic diagram of a part of the embodiment, mainly showing the structure of the bushing;

[0043] Figure 5 is Figure 4 the enlarged view of part A of

[0044] Reference numerals:

[0045] 11. Mounting plate; 12. Square pipe; 13. Rear pressure plate; 14. Side mudguard; 15. Mounting part; 16. Spring adjusting rod; 17. Spring adjusting sleeve; 18. Rotating bracket; 19. Adjusting nut; 20. Adjusting spacer sleeve; 21. Upper adjusting spring; 22. Lower adjusting spring; 23. Bush; 24. Fixed plate; 25. First bolt; 26. Rotating shaft; 27. Handle part; 28. Limiting part; 29. Second bolt; 30. Rotary tiller frame; 31. First nut; 32. Second nut. Detailed implementation manners

[0046] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0047] In addition, it should be noted that for the sake of convenience of description, only the parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0048] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or the interdependent relationship therebetween.

[0049] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly stated in the context, it should be understood as "one or more".

[0050] The present disclosure will be described in detail below with reference to the drawings and in combination with embodiments.

[0051] Referring to Figures 1 - 5 , the disassembly and assembly structure of the rear pressure plate includes: the rotary tiller frame 30, the rear pressure plate assembly, the mounting plate 11, the fixed plate 24, and the side mudguard 14.

[0052] The rear pressure plate assembly is installed on the rotary tiller frame 30; the side mudguard 14 is fixedly connected to the mounting plate 11 through a second connection assembly. The second connection assembly includes: a second bolt 29 and a second nut 32; the side mudguard 14 is provided with a second through hole, and the second bolt 29 passes through the second through hole and is threadedly connected to the second nut 32.

[0053] The mounting plate 11 is fixedly connected to the outer sides of both ends of the rotary tiller frame 30. The rotating shaft 26 is fixedly connected to the fixing plate 24. A limiting pull rod is installed on one side of the fixing plate 24. The limiting pull rod includes: a handle part 27 located on one side of the fixing plate 24 and a limiting part 28 passing through the other side of the fixing plate 24. The mounting plate 11 is provided with a first through hole that provides space for the rotating shaft 26 to pass through the mounting plate 11. One end of the rotating shaft 26 passes through the first through hole and extends to the side of the mounting plate 11 close to the rotary tiller frame 30. The mounting plate 11 is provided with a second through hole that provides space for the limiting part 28 to pass through the mounting plate 11. The limiting part 28 passes through the second through hole.

[0054] In order to enable the fixing plate 24 to be detachably mounted on the mounting plate 11, a first connection assembly is further provided. The first connection assembly includes: a first bolt 25 and a first nut 31; the fixing plate 24 is provided with a first through hole, and the first bolt 25 passes through the first through hole and is threadedly connected to the first nut 31.

[0055] The rear pressure plate assembly includes: a bushing 23, a rear pressure plate 13, a round rod 34, a mounting member 15, a square pipe 12, an adjusting spacer sleeve 20, a rotating bracket 18, a spring adjusting rod 16, an adjusting nut 19, an adjusting upper spring 21, a spring adjusting sleeve 17, and an adjusting lower spring 22.

[0056] The upper end of the rear pressure plate 13 is fixedly welded to the bushing 23. The bushing 23 is a hollow pipe, and the inner diameter of the hollow of the bushing 23 is larger than the outer diameter of the rotating shaft 26. The length of the bushing 23 is less than the distance between the two mounting plates 11. Both ends of the bushing 23 are respectively inserted onto the rotating shafts 26 on both sides.

[0057] Both ends of the square tube 12 are fixedly connected to the mounting plates 11 on both sides respectively. One end of the mounting member 15 is fixedly connected to the rotary tiller frame 30, and a part of the mounting member 15 is fixedly connected to the square tube 12. The adjusting spacer sleeve 20 is rotatably connected to the mounting member 15. The rotating bracket 18 is fixedly connected to the rear pressure plate 13. The spring adjusting rod 16 is fixedly connected to the adjusting spacer sleeve 20. A first mounting hole is provided at the lower end of the spring adjusting rod 16, and a second mounting hole is provided on the rotating bracket 18. A pin is inserted into the first mounting hole and the second mounting hole. A second pin hole is provided at one end of the pin, and a second pin shaft is installed in the second pin hole. The second pin shaft can be inserted into the second pin hole, so that the lower end of the spring adjusting rod 16 is rotatably connected to the rotating bracket 18 through the pin. The adjusting nut 19 is threadedly connected to the upper end of the spring adjusting rod 16. The two ends of the upper adjusting spring 21 are directly or indirectly abutted against the adjusting nut 19 and the adjusting spacer sleeve 20 respectively. The spring adjusting sleeve 17 is installed on the spring adjusting rod 16. A number of adjusting holes are provided on the spring adjusting rod 16. A first pin hole is provided on the spring adjusting sleeve 17, and a first pin shaft is installed in the first pin hole. The first pin shaft can be inserted into the first pin hole and one of the adjusting holes. The two ends of the lower adjusting spring 22 are directly or indirectly abutted against the spring adjusting rod 16 and the adjusting spacer sleeve 20 respectively.

[0058] Working or installation process:

[0059] The rear pressure plate 13 is fixedly connected to the bushing 23 by welding. Lift the welded assembly of the rear pressure plate 13 and the bushing 23 and align the two ends of the bushing 23 with the first through holes on both sides respectively;

[0060] Place the fixing plate 24 on the side of one of the mounting plates 11 away from the rotary tiller frame 30. Pass the first bolt 25 through the first through hole on the fixing plate 24, and thread the first nut 31 onto the first bolt 25 so that the fixing plate 24 is fixedly connected to the side wall of the mounting plate 11. The rotating shaft 26 passes through the first through hole, and the limiting portion 28 passes through the second through hole, so that the fixing plate 24 is fixedly connected to one side of the mounting plate 11. Insert one end of the bushing 23 onto one of the installed rotating shafts 26 so that the bushing 23 is in rotational contact with the rotating shaft 26;

[0061] At this time, lift the rear pressure plate 13 and make the bushing 23 level with the other first through hole that has not inserted the rotating shaft 26. Fit another fixing plate 24 onto the other mounting plate 11 and repeat the above operation so that the other fixing plate 24 is fixedly connected to the other mounting plate 11. Since the axial extension direction of the bushing 23 is horizontal with the extension direction of the square tube 12, when installing the other fixing plate 24, the rotating shaft 26 on this fixing plate 24 is inserted into the bushing 23. At this time, the two ends of the bushing 23 are respectively sleeved on the rotating shafts 26 on both sides and the bushing 23 is in rotational contact with the rotating shafts 26 on both sides, thus completing the fixed installation of the rear pressure plate 13;

[0062] Since the adjusting separation sleeve 20 is rotatably connected to the mounting member 15, the position of the mounting member 15 is fixed. According to the tilting requirement of the rear pressure plate 13, the position of the spring adjusting sleeve 17 on the spring adjusting rod 16 is adjusted, and the lower end of the spring adjusting rod 16 is rotatably connected to the rotating bracket 18 through a pin. The adjusting nut 19 is rotated and the position of the adjusting nut 19 on the spring adjusting rod 16 is adjusted. Since the upper adjusting spring 21 is located between the adjusting nut 19 and the adjusting separation sleeve 20, and the lower adjusting spring 22 is located between the adjusting separation sleeve 20 and the spring adjusting sleeve 17, when the rear pressure plate 13 vibrates and the rear pressure plate 13 rotates around its own axis of the shaft sleeve 23, the upper adjusting spring 21 or the lower adjusting spring 22 can reset the rear pressure plate 13.

[0063] When the adjustment is completed, the lower end of the spring adjustment rod 16 is moved closer to the rotating bracket 18 until the first mounting hole on the spring adjustment rod 16 is connected to the second mounting hole on the rotating bracket 18, and the latch is inserted into the first mounting hole and the second mounting hole in sequence, and the second pin shaft is inserted into the second pin hole, so that the lower end of the spring adjustment rod 16 is rotatably connected to the rotating bracket 18 through the latch;

[0064] When the two rotating brackets 18 are welded to the side walls of the rear pressure plate 13, the rear pressure plate 13 is located between the two side mudguards 14, and the two side mudguards 14 and the two mounting plates 11 limit the rear pressure plate 13 in the horizontal direction; the limiting portions 28 pass through the second through holes respectively and the limiting portions 28 are located on the rotation path of the rear pressure plate 13 around the axis of the shaft sleeve 23 itself, so that the limiting portions 28 limit the rotation of the rear pressure plate 13 to prevent the rear pressure plate 13 from rotating at an excessive angle and contacting the rotary blade when vibrating.

[0065] When the rear pressure plate 13 needs to be replaced, the two first nuts 31 are rotated in the opposite direction to disengage the threaded connection between the first nut 31 and the first bolt 25. The worker holds the handle portion 27 and directly pulls the handle portion 27 so that the handle portion 27 drives the fixing plate 24 to move to the side away from the mounting plate 11, and pulls out the rotating shaft 26 and the limiting portion 28 from the mounting plate 11, so that both ends of the sleeve 23 are disengaged from the rotating shaft 26 on both sides, and pulls out the second pin shaft from the second pin hole, and pulls out the pin from the first mounting hole and the second mounting hole, so that the rotating bracket 18 is disconnected from the lower end of the spring adjusting rod 16. At this time, the rear pressure plate 13 is completely disengaged from the rotary tiller frame 30, and the rear pressure plate 13 is removed from the rotary tiller frame 30, and the above operation is repeated with a new rear pressure plate 13, and the new rear pressure plate 13 is installed on the rotary tiller frame 30 to complete the replacement of the rear pressure plate 13.

[0066] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the embodiments of the present disclosure that have similar functions.

Claims

1. A rear pressure plate disassembly and assembly structure, comprising: A rotary tiller frame (30) and a rear pressure plate assembly; The feature is that: the rear pressure plate assembly is mounted on the rotary tiller frame (30); The rear pressure plate disassembly and assembly structure also includes: A mounting plate (11) fixedly connected to the outer sides of both ends of the rotary tiller frame (30); A fixing plate (24) which is detachably mounted on the mounting plate (11); Wherein, a limiting pull rod is installed on one side of the fixing plate (24), and the limiting pull rod comprises: a handle portion (27) located on one side of the fixing plate (24) and a limiting portion (28) formed through the other side of the fixing plate (24); A rotating shaft (26) fixedly connected to the fixing plate (24); The mounting plate (11) is provided with a first through hole for providing space for the rotating shaft (26) to pass through the mounting plate (11); one end of the rotating shaft (26) passes through the first through hole and extends to a side of the mounting plate (11) close to the rotary tiller frame (30); the mounting plate (11) is provided with a second through hole for providing space for the limiting portion (28) to pass through the mounting plate (11); the limiting portion (28) passes through the second through hole; A side fender (14) fixedly connected to the mounting plate (11); The rear pressure plate assembly comprises: A shaft sleeve (23) sleeved on the rotating shaft (26); The rear pressure plate (13) is fixedly connected to the shaft sleeve (23).

2. The rear pressure plate disassembly and assembly structure according to claim 1, characterized in that: The fixing plate (24) is mounted on the rotary tiller frame (30) via a first connecting assembly; The first connecting assembly comprises: a first bolt (25) and a first nut (31); The fixing plate (24) is provided with a first through hole, and the first bolt (25) passes through the first through hole and is threadedly connected to the first nut (31).

3. The rear pressure plate disassembly and assembly structure according to claim 1, characterized in that: The rear pressure plate assembly also includes: A mounting member (15) fixedly connected to the rotary tiller frame (30); A square tube (12) fixedly connected to the mounting plate (11); An adjusting separation sleeve (20) is rotatably connected to the mounting member (15); A rotating bracket (18) fixedly connected to the rear pressure plate (13); A spring adjustment rod (16) sleeved on the adjustment separation sleeve (20); Wherein, the lower end of the spring adjustment rod (16) is rotatably connected to the rotating bracket (18); An adjusting nut (19) threadedly connected to the upper end of the spring adjusting rod (16); An adjusting upper spring (21), both ends of which are directly or indirectly in contact with the adjusting nut (19) and the adjusting separation sleeve (20); A spring adjustment sleeve (17) sleeved on the spring adjustment rod (16); The lower adjustment spring (22) has two ends that are directly or indirectly in contact with the spring adjustment rod (16) and the adjustment separation sleeve (20).

4. The rear pressure plate disassembly and assembly structure according to claim 3, characterized in that: The spring adjustment rod (16) is provided with a plurality of adjustment holes, and the spring adjustment sleeve (17) is provided with a first pin hole, in which a first pin shaft is installed, and the first pin shaft can be inserted into the first pin hole and one of the adjustment holes.

5. The rear pressure plate disassembly and assembly structure according to claim 1, characterized in that: The side fender (14) is fixedly connected to the mounting plate (11) via a second connecting assembly; The second connecting assembly comprises: a second bolt (29) and a second nut (32); The side fender (14) is provided with a second through hole, and the second bolt (29) passes through the second through hole and is threadedly connected to the second nut (32).

6. The rear pressure plate disassembly and assembly structure according to claim 3, characterized in that: A first mounting hole is provided at the lower end of the spring adjustment rod (16), and a second mounting hole is provided on the rotating bracket (18). Pins are inserted into the first mounting hole and the second mounting hole. A second pin hole is provided at one end of the pin. A second pin shaft is installed in the second pin hole, and the second pin shaft can be inserted into the second pin hole.

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