Novel locking plate and harrow group fastening structure using same

Abstract

The utility model discloses a novel locking plate which is integrally in a disc shape, a regular hexagon hole is formed in the middle of the novel locking plate, six sets of fixing holes are formed in the outer edge of the novel locking plate, the six sets of fixing holes are distributed in an annular array mode, the hole center of one set of fixing holes is A2, the hole center of the other set of fixing holes is A3, and the hole center of the other set of fixing holes is A4. The novel locking plate is characterized in that A2 is a regular hexagon hole, one corner of the regular hexagon hole adjacent to the A2 is A1, the connecting line of the center of the novel locking plate and A1 is L1, the connecting line of the center of the novel locking plate and A2 is L2, the included angle between L1 and L2 is B1, and B1 is 10 degrees. The utility model relates to the technical field of harrow group fastening, in particular to a novel locking plate which is good in installation effect and saves more time and labor during installation and a harrow group fastening structure using the novel locking plate.

Description

Technical Field

[0001] The utility model relates to the technical field of rake group fastening, in particular to a novel locking plate and a rake group fastening structure using the novel locking plate. Background Art

[0002] Disc harrows are mainly used to loosen the soil after plowing to meet the agronomic requirements of land preparation before sowing. They are also used for weeding or shallow tillage and stubble removal on stubble after harvest. Existing disc harrows usually consist of several groups of concave disc harrow blades installed on a harrow frame, which are then fastened with nuts. In order to prevent the nuts from loosening during use and affecting the normal operation of the harrow group, a locking plate is usually used to lock the nuts. Existing locking plates such as Figure 7 As shown, the locking plate is disc-shaped as a whole, with a regular hexagonal hole in the middle that matches the nut, and two groups of fixing holes symmetrically opened on its outer edge, with each group of fixing holes having 3 holes, and in each group of fixing holes, the angle between the line connecting two adjacent fixing holes and the center of the locking plate is 30°.

[0003] When the locking plate is used to lock the nut, it is only necessary to clamp the nut in the regular hexagonal hole, then insert the bolt from the fixing hole and fix the bolt in the locking hole of the anti-loosening inner pad, thereby fixing the locking plate. However, in actual operation engineering, when the locking plate is put on the nut, the fixing hole on the locking plate and the locking hole on the anti-loosening inner pad usually cannot correspond exactly. At this time, it is necessary to loosen the nut to rotate the locking plate at a certain angle so that the fixing hole and the locking hole correspond to each other. However, when the nut is loosened, in order to ensure the stability of the rake group, the angle of the nut rotation loosening should be minimized as much as possible. Therefore, in order to achieve the above effect, the fixing hole should be as close to the locking hole as possible in the rotation direction of the loose nut, that is, the rotation angle of the nut should be between 0° and 30°. Due to the uneven distribution of the fixing holes on the existing locking plate, when installing the locking plate, it is necessary to rotate and adjust the locking plate multiple times to find the best placement position of the locking plate. The above operation process is relatively time-consuming and labor-intensive, which brings a lot of inconvenience to the staff. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a new locking plate with good installation effect and more time-saving and labor-saving installation, and a rake group fastening structure using the new locking plate.

[0005] The technical solution adopted by the utility model is as follows: the utility model provides a new type of locking plate, which is disc-shaped as a whole, a regular hexagonal hole is opened in the middle of the new type locking plate, and a fixing hole is opened on the outer edge of the new type locking plate. The fixing holes are provided in six groups, and the six groups of fixing holes are distributed in a circular array, wherein the center of one group of the fixing holes is A2, and a corner of the regular hexagonal hole adjacent to A2 is A1, the line connecting the center of the new type locking plate and A1 is L1, the line connecting the center of the new type locking plate and A2 is L2, and the angle between L1 and L2 is B1.

[0006] Furthermore, the B1 is 10°.

[0007] The utility model also provides a rake group fastening structure, including a rake frame, a fastening assembly and a rake string, the rake frame including a rake group beam and a cross beam arranged on the rake group beam, the cross beam is provided with a support arm, the support arm is rotatably provided with a square shaft through a bearing, the rake string is arranged on the square shaft, the fastening assembly is arranged on the square shaft, and is used to lock the rake string, the fastening assembly includes an anti-loosening inner pad, a bolt and a nut, and also includes a novel locking plate as described above, the anti-loosening inner pad is provided with a square hole, the anti-loosening inner pad is arranged on the square shaft through the square hole snap-fitting connection and contacts with a group of disc rake pieces in the rake string, the anti-loosening inner pad is provided with a locking hole, and the locking holes are symmetrically provided with two groups, one end of the square shaft is provided with a threaded rod, the nut is connected to the threaded rod through a thread, the novel locking plate is snap-fitted and sleeved on the nut through a regular hexagonal hole, the bolt passes through the fixing hole and is connected to the locking hole through a thread.

[0008] Furthermore, a groove is provided on the side of the anti-loosening inner gasket that contacts the nut, a gasket is provided in the groove, and the gasket is sleeved on the square shaft.

[0009] Furthermore, a spring washer is provided at the connection between the nut of the bolt and the novel locking plate, and the spring washer is sleeved on the screw rod of the bolt.

[0010] The beneficial effects achieved by the utility model using the above structure are as follows:

[0011] When using the new locking plate to lock the nut, it can not only ensure that the rotation angle of the nut should be between 0° and 30° when loosening the nut, but also, due to the uniform distribution of the fixing holes, the new locking plate can be clamped on the nut at any angle. If the nut needs to be rotated at a larger angle at this time, it is only necessary to adjust the new locking plate once on the front and back sides, and then select the smallest loosening rotation angle. There is no need to rotate and adjust the new adjustment plate multiple times, which saves time and effort.

[0012] The use of the new locking plate can make it more convenient and quick to fasten and install the rake group, which can not only ensure the stability of the installation of the rake group, but also improve the efficiency of the installation of the rake group. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the fastening structure of the rake group using the novel locking plate in the utility model;

[0015] Figure 2 for Figure 1 A magnified view of part A;

[0016] Figure 3 It is a front cross-sectional view of the anti-loosening inner pad in the fastening structure of the rake group using the new locking plate in the utility model;

[0017] Figure 4 It is a left view of the anti-loosening inner pad in the fastening structure of the rake group using the new locking plate in the utility model;

[0018] Figure 5 It is a schematic diagram of a new locking plate in the utility model;

[0019] Figure 6 It is a position distribution diagram of the fixing holes on the new locking plate of the utility model;

[0020] Figure 7 It is a schematic diagram of an existing locking plate.

[0021] Among them, 1. rake frame, 2. fastening assembly, 3. rake string, 4. square shaft, 5. threaded rod, 6. anti-loosening inner pad, 7. bolt, 8. nut, 9. square hole, 10. locking hole, 11. regular hexagonal hole, 12. fixing hole, 13. groove, 14. gasket, 15. spring washer, 16. rake group beam, 17. cross beam, 18. support arm. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with 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 of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] like Figure 1-Figure 6 As shown, the utility model provides a new locking plate, which is disc-shaped as a whole, with a regular hexagonal hole 11 in the middle of the new locking plate, and a fixing hole 12 in the outer edge of the new locking plate. The fixing holes 12 are provided in six groups, and the six groups of fixing holes 12 are distributed in a circular array, wherein the hole center of one group of fixing holes 12 is A2, and a corner of the regular hexagonal hole 11 adjacent to A2 is A1, the line connecting the center of the new locking plate and A1 is L1, the line connecting the center of the new locking plate and A2 is L2, and the angle between L1 and L2 is B1; B1 is 10°.

[0025] The utility model also provides a rake group fastening structure, including a rake frame 1, a fastening assembly 2 and a rake string 3, the rake frame 1 includes a rake group beam 16 and a cross beam 17 arranged on the rake group beam 16, a support arm 18 is arranged on the cross beam 17, a square shaft 4 is rotatably arranged on the support arm 18 through a bearing, the rake string 3 is arranged on the square shaft 4, the fastening assembly 2 is arranged on the square shaft 4, and is used to lock the rake string 3, the fastening assembly 2 includes an anti-loosening inner pad 6, a bolt 7 and a nut 8, and also includes a novel locking plate as described above, the anti-loosening inner pad 6 is provided with a square hole 9, the anti-loosening inner pad 6 is sleeved and arranged on the square shaft 4 through the square hole 9 and is engaged with a group of the rake string 3 The disc harrow blade is in contact, a locking hole 10 is provided on the anti-loosening inner pad 6, and two groups of locking holes 10 are symmetrically arranged. A threaded rod 5 is provided at one end of the square shaft 4, and a nut 8 is connected to the threaded rod 5 by threads. The new locking plate is sleeved on the nut 8 through a regular hexagonal hole 11, and the bolt 7 passes through the fixing hole 12 and is connected to the locking hole 10 by threads; a groove 13 is provided on the side of the anti-loosening inner pad 6 that contacts the nut 8, and a gasket 14 is provided in the groove 13, and the gasket 14 is sleeved on the square shaft 4; a spring washer 15 is provided at the connection between the nut of the bolt 7 and the new locking plate, and the spring washer 15 is sleeved on the screw rod of the bolt 7.

[0026] During specific use, the rake group is first installed on the square shaft 4, and then the anti-loosening inner pad 6 is sleeved on the square shaft 4, and the inner side of the anti-loosening inner pad 6 is made to contact the circular rake blade of the rake group, and then the gasket 14 is sleeved on the square shaft 4, and the gasket 14 is placed in the groove 13, and then the nut 8 is installed on the threaded rod 5, and then the new locking plate is sleeved on the nut 8. At this time, the fixing hole 12 on the new locking plate and the locking hole 10 on the anti-loosening inner pad 6 may not correspond, so it is necessary to loosen the nut 8 to rotate the new locking plate by a certain angle until the fixing hole 12 on the new locking plate and the locking hole 10 on the anti-loosening inner pad 6 correspond to each other, and then the bolt 7 is used to cooperate with the locking hole 10 and the fixing hole 12 to fix and lock the new locking plate and the anti-loosening inner pad 6. At this time, the nut 8 can be locked to prevent the nut 8 from loosening during the operation of the rake group.

[0027] When loosening the nut 8 in order to make the anti-loosening inner pad 6 and the locking hole 10 correspond to each other, it should be noted that the rotation angle of the nut 8 should be as small as possible, that is, the rotation angle of the nut 8 should be between 0° and 30°, so as to better ensure the stability of the installation of the rake group. Specifically, when installing the new locking plate, due to the uniform distribution of the fixing holes 12, the new locking plate can be clamped on the nut 8 at any angle. If the nut 8 needs to be rotated at a large angle at this time, the new locking plate only needs to be adjusted once on the front and back sides, and then the smallest loose rotation angle can be selected. There is no need to rotate and adjust the new adjustment plate multiple times, which is more time-saving and labor-saving.

[0028] In summary, when the new locking plate is used to lock the nut 8, it can not only ensure that when the nut 8 is loosened, its rotation angle should be between 0° and 30°, but also, due to the uniform distribution of the fixing holes 12, the new locking plate can be clamped on the nut 8 at any angle. If the nut 8 needs to be rotated at a larger angle at this time, it is only necessary to adjust the front and back sides of the new locking plate once at most, and then select the smallest loose rotation angle, without rotating and adjusting the new adjustment plate multiple times, which is more time-saving and labor-saving. The use of the new locking plate can more conveniently and quickly fasten the rake group, which can not only ensure the stability of the rake group installation, but also improve the efficiency of the rake group installation.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new locking plate, characterized in that: The novel locking plate is disc-shaped as a whole, a regular hexagonal hole (11) is opened in the middle of the novel locking plate, a fixing hole (12) is opened on the outer edge of the novel locking plate, the fixing holes (12) are provided in six groups, and the six groups of fixing holes (12) are distributed in a ring array, wherein the hole center of one group of fixing holes (12) is A2, a corner of the regular hexagonal hole (11) adjacent to A2 is A1, a line connecting the center of the novel locking plate and A1 is L1, a line connecting the center of the novel locking plate and A2 is L2, and an angle between L1 and L2 is B1.

2. The novel locking plate according to claim 1 is characterized in that: The B1 is 10°.

3. A rake group fastening structure, characterized in that: The invention comprises a rake frame (1), a fastening assembly (2) and a rake string (3), wherein the rake frame (1) comprises a rake group beam (16) and a cross beam (17) arranged on the rake group beam (16), the cross beam (17) is provided with a support arm (18), a square shaft (4) is rotatably arranged on the support arm (18) through a bearing, the rake string (3) is arranged on the square shaft (4), the fastening assembly (2) is arranged on the square shaft (4) and is used to lock the rake string (3), the fastening assembly (2) comprises an anti-loosening inner pad (6), a bolt (7) and a nut (8), and further comprises a new locking plate according to any one of claims 1 to 2, the The anti-loosening inner pad (6) is provided with a square hole (9), and the anti-loosening inner pad (6) is arranged on the square shaft (4) through the square hole (9) and contacts a group of disc harrow blades in the harrow string (3). The anti-loosening inner pad (6) is provided with a locking hole (10), and the locking holes (10) are symmetrically arranged in two groups. A threaded rod (5) is provided at one end of the square shaft (4), and the nut (8) is connected to the threaded rod (5) through a thread. The novel locking plate is engaged and sleeved on the nut (8) through a regular hexagonal hole (11), and the bolt (7) passes through the fixing hole (12) and is connected to the locking hole (10) through a thread.

4. The rake group fastening structure according to claim 3, characterized in that: A groove (13) is provided on the side of the anti-loosening inner gasket (6) that contacts the nut (8), a gasket (14) is provided in the groove (13), and the gasket (14) is sleeved on the square shaft (4).

5. The rake group fastening structure according to claim 3, characterized in that: A spring washer (15) is provided at the connection between the nut of the bolt (7) and the novel locking plate, and the spring washer (15) is sleeved on the screw rod of the bolt (7).

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