fixing structure

Abstract

The application relates to a fixing structure, a rack comprising a first positioning plate and a second positioning plate, a gearbox comprising a first mounting base and a second mounting base, and an eccentric sleeve used for eliminating deviation between the first mounting base and the first positioning plate when the gearbox is mounted on the rack, a second locking cavity penetrating through the second mounting base, a first locking cavity penetrating through the first mounting base, a second insertion hole penetrating through the second positioning plate, a first insertion hole penetrating through the first positioning plate, a linkage cavity axially arranged in the eccentric sleeve, and an eccentric distance between the linkage cavity and the eccentric sleeve. The application allows the rack and the gearbox to have slight manufacturing errors, the eccentric sleeve can compensate for the errors, high machining precision of parts is not required, the manufacturing difficulty and the production cost of the parts are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of bundling equipment technology, and in particular to a gearbox fixing structure. Background Technology

[0002] The gearbox fixing mechanism of a baler is a core component that ensures stable operation of the gearbox and precise power transmission. Its structural design and assembly logic directly affect the overall performance of the equipment. During baling operations, the gearbox is the central hub connecting power sources, such as tractor engines or the baler's own engine, with the core actuators of the baler for power distribution and adjustment. Its core function is to ensure that all components of the baler, such as the pickup, feed roller, compression piston, and knotter, operate at a stable and efficient pace through power transmission, speed regulation, and torque matching. This directly determines the continuity of the baling operation, the quality of the bales, and the reliability of the equipment.

[0003] In related technologies, the gearbox is directly mounted on the frame and fixed by a through pin. Since the gearbox is a pre-assembled assembly, there is a certain deviation between its upper and lower mounting holes. Moreover, the frame is generally a welded structural component, which will also have a certain deviation during manufacturing. As a result, it is difficult to align the centers of the mounting holes of the two components. While correcting and enlarging the dimensional tolerances for installation, the fitting and installation accuracy, load-bearing capacity, and service durability are also reduced. Utility Model Content

[0004] Based on this, it is necessary to address the issue that the mounting holes of the gearbox itself have certain deviations during installation, and the frame is generally a welded structural component, which will also have certain deviations during manufacturing. This makes it difficult to align the centers of the mounting holes of the two components. In addition to the problems of correction and enlarged dimensional tolerances during installation, the installation accuracy, load-bearing capacity and durability are also reduced. Therefore, it is necessary to provide a fixed structure.

[0005] According to one aspect of this application, a fixing structure is provided for use in a baling device, comprising:

[0006] The frame includes a first positioning plate and a second positioning plate, with a gap between the first positioning plate and the second positioning plate;

[0007] The gearbox includes a first mounting base and a second mounting base, wherein the first mounting base is connected to a first positioning plate and the second mounting base is connected to a second positioning plate;

[0008] An eccentric sleeve is used to eliminate the deviation between the first mounting seat and the first positioning plate when the gearbox is installed on the frame.

[0009] The second mounting base has a through-hole second locking cavity, and the first mounting base has a first locking cavity; the second positioning plate has a through-hole second insertion hole, and the first positioning plate has a through-hole first insertion hole; the eccentric sleeve has an axially oriented linkage cavity inside, and the axis of the linkage cavity and the axis of the eccentric sleeve have an eccentricity along the radial direction of the eccentric sleeve; the eccentric sleeve is rotatably mounted in the first locking cavity, and when the eccentric sleeve rotates, the linkage cavity rotates relative to the first insertion hole.

[0010] In one embodiment, the frame is provided with a second crossbeam and a first crossbeam, the second crossbeam is provided with at least one second positioning plate, and the first positioning plate is provided on the first crossbeam.

[0011] In one embodiment, the second mounting base is configured as at least one set, with the second mounting base corresponding to the second positioning plate, and each second mounting base is fixed on the corresponding second positioning plate.

[0012] In one embodiment, the fixing structure further includes a second locking member, which includes a second pin for limiting the second locking cavity and the second insertion hole.

[0013] In one embodiment, the second positioning plate is further provided with a through second locking hole, the second mounting base is further provided with a through threaded hole, and the second locking member is further provided with a second bolt threaded on it. The second bolt is used to limit the second locking hole and the threaded hole.

[0014] In one embodiment, the fixing structure further includes a first locking member, which includes a first pin for limiting the linkage cavity and the first insertion hole.

[0015] In one embodiment, the fixing structure further includes a limiting member, the first positioning plate is provided with a through first locking hole, the limiting member is provided with a positioning groove, and the first locking member is also threaded with a first bolt, the first bolt being used to limit the first locking hole and the positioning groove.

[0016] In one embodiment, the eccentric sleeve has a protrusion on the side facing the first locking member, and the limiting member has a tiger's mouth portion. The protrusion portion is located inside the tiger's mouth portion. When the limiting member is in the first state, the tiger's mouth portion is used to rotate the protrusion portion. When the limiting member is in the second state, the limiting member is connected to the frame and is used to limit the eccentric sleeve.

[0017] In one embodiment, the distance between the axis of the threaded hole and the axis of the second locking cavity is equal to the distance between the axis of the second pin and the axis of the second bolt.

[0018] In one embodiment, the frame 1 is made of steel.

[0019] This application has the following beneficial effects:

[0020] Compared to the traditional method of assembling first and then calibrating, this eccentric sleeve adjustment structure can ensure assembly accuracy and improve equipment performance. Through precise adjustment of the eccentric sleeve, it ensures that the shaft-hole mating clearance strictly meets design requirements, reducing problems such as pin wear and abnormal noise caused by misalignment, thereby improving the load-bearing capacity of the frame and the overall durability of the mechanism.

[0021] This application also reduces assembly difficulty, eliminating the need for cutting, welding, or other alignment operations on the frame or gearbox after assembly. This simplifies the assembly process, lowers the skill requirements for operators, and avoids damage to components during alignment. Since minor manufacturing errors in the frame and gearbox hole positions are permissible and can be compensated for by eccentric sleeves, extremely high part machining precision is not required, thereby reducing the manufacturing difficulty and production cost of components and improving production efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.

[0023] Figure 2 This is a three-dimensional structural diagram of the rack in one embodiment of this application.

[0024] Figure 3 This is a three-dimensional structural diagram of the eccentric sleeve in one embodiment of this application.

[0025] Figure 4 This is a three-dimensional structural view of the first locking member in one embodiment of this application.

[0026] Figure 5 This is an exploded three-dimensional structural diagram of an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Frame; 101. Second crossbeam; 102. First crossbeam; 103. Second positioning plate; 104. First positioning plate; 105. Second insertion hole; 106. Second locking hole; 107. First insertion hole; 108. First locking hole;

[0029] 2. Gearbox; 201. Second mounting base; 202. First mounting base; 203. Second locking cavity; 204. Threaded hole; 205. First locking cavity;

[0030] 3. Eccentric sleeve; 301. Linkage cavity; 302. Boss part;

[0031] 4. Limiting components; 401. Grip; 402. Positioning groove;

[0032] 5. First locking element; 501. First pin; 502. First bolt;

[0033] 6. Second locking element; 601. Second pin; 602. Second bolt. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] See Figure 1 - Appendix Figure 5 , Figure 1 This diagram illustrates the overall structure of a fixing structure according to an embodiment of the present application, used for a bundling device. It includes a frame 1, comprising a first positioning plate 104 and a second positioning plate 103, with a gap between the first positioning plate 104 and the second positioning plate 103; a gearbox 2, comprising a first mounting base 202 and a second mounting base 201, the first mounting base 202 being connected to the first positioning plate 104 and the second mounting base 201 being connected to the second positioning plate 103; and an eccentric sleeve 3, which, when the gearbox 2 is mounted on the frame 1, is used to eliminate the deviation between the first mounting base 202 and the first positioning plate 104.

[0041] The second mounting base 201 has a through second locking cavity 203, and the first mounting base 202 has a first locking cavity 205; the second positioning plate 103 has a through second insertion hole 105, and the first positioning plate 104 has a through first insertion hole 107; the eccentric sleeve 3 has a linkage cavity 301 axially arranged inside, and the axis of the linkage cavity 301 and the axis of the eccentric sleeve 3 have an eccentricity in the radial direction of the eccentric sleeve 3; the eccentric sleeve 3 is rotatably installed in the first locking cavity 205, and when the eccentric sleeve 3 rotates, the linkage cavity 301 rotates relative to the first insertion hole 107.

[0042] During operation, the device first aligns the second locking cavity 203 on the second mounting base 201 of the gearbox 2 with the second insertion hole 105 on the second positioning plate 103. Then, the second pin 601 on the second locking member 6 passes through the second positioning plate 103 and the second insertion hole 105 in sequence for initial positioning. Next, the second bolt 602 passes through the second locking hole 106 and is fixed into the threaded hole 204, thereby completing the fixation of the lower side of the gearbox 2.

[0043] Next, the eccentric sleeve 3 is pre-installed into the first locking cavity 205 on the gearbox 2, ensuring that the outer circle of the eccentric sleeve 3 fits tightly with the first locking cavity 205 without any obvious gap, preparing for subsequent center position adjustment. Then, the eccentric sleeve 3 is precisely adjusted by rotating it according to the actual center deviation between the first locking cavity 205 and the first insertion hole 107 on the first positioning plate 104. Since the outer circle of the eccentric sleeve 3 does not coincide with the axis of the linkage cavity 301, that is, there is an eccentricity, during the rotation, the linkage cavity 301 will shift in position relative to the outer circle of the eccentric sleeve 3, and the larger the eccentricity, the wider the adjustable range of the linkage cavity 301.

[0044] Once the linkage cavity 301 is aligned with the center of the first insertion hole 107, the first pin 501 is quickly inserted, and the boss 302 and the limiting member 4 are locked onto the first positioning plate 104 by the first bolt 502, thus completing the full fixation of the gearbox 2 and the frame 1 and ensuring that the design assembly accuracy is achieved.

[0045] See Figure 2 The frame 1 is provided with a second crossbeam 101 and a first crossbeam 102. At least one second positioning plate 103 is provided on the second crossbeam 101, and the first positioning plate 104 is provided on the first crossbeam 102.

[0046] In some embodiments, a second crossbeam 101 and a first crossbeam 102 structure are designed to improve the strength of the frame 1 and support the gearbox 2.

[0047] See appendix Figure 2 and attached Figure 5The second mounting base 201 is configured as at least one set, and the second mounting base 201 is correspondingly set with the second positioning plate 103. Each second mounting base 201 is fixed on the corresponding second positioning plate 103.

[0048] In some embodiments, due to the large weight of the gearbox 2, in order to improve the stability when fixed and avoid accidental loosening or breakage, multiple sets of second mounting seats 201 and second positioning plates 103 are designed.

[0049] See Figure 2 and attached Figure 5 The fixing structure also includes a second locking member 6, which includes a second pin 601. The second pin 601 is used to limit the second locking cavity 203 and the second insertion hole 105. The second positioning plate 103 also has a through second locking hole 106, and the second mounting base 201 also has a through threaded hole 204. The second locking member 6 is also threaded with a second bolt 602, which is used to limit the second locking hole 106 and the threaded hole 204.

[0050] In some embodiments, during installation, the second locking cavity 203 of the gearbox 2 is first aligned with the second insertion hole 105 of the frame 1, the second pin 601 is inserted and fixed, and then the second bolt 602 is fixed into the threaded hole 204. This step establishes a benchmark for the entire assembly process, limits the displacement of the lower side of the gearbox 2, and avoids overall offset during subsequent adjustments.

[0051] See appendix Figure 4 - Appendix Figure 5 The fixing structure also includes a first locking member 5, which includes a first pin 501. The first pin 501 is used to limit the linkage cavity 301 and the first insertion hole 107.

[0052] In some embodiments, the first pin 501 is used to initially fix the first mounting base 202 and the first positioning plate 104. In order to prevent the eccentric sleeve 3 from loosening, a limiting member 4 structure is designed to fix the eccentric sleeve 3 to the first positioning plate 104.

[0053] In some embodiments, when the outer circle of the eccentric sleeve 3 engages with the first locking cavity 205 on the gearbox 2, rotating the eccentric sleeve 3 will cause its inner circle, that is, the linkage cavity 301, to move in a circular motion around the center of the outer circle—equivalent to the center of the linkage cavity 301 moving on a circle with the eccentricity as the radius. By controlling the rotation angle of the eccentric sleeve 3, the center of its linkage cavity 301 can be made to coincide exactly with the center of the first insertion hole 107 on the frame 1, thereby eliminating the center deviation of the shaft hole between the gearbox 2 and the frame 1 and meeting the assembly accuracy requirements.

[0054] See appendix Figure 4 - Appendix Figure 5The fixing structure also includes a limiting member 4. The first positioning plate 104 is also provided with a through first locking hole 108. The limiting member 4 is provided with a positioning groove 402. The first locking member 5 is also threaded with a first bolt 502. The first bolt 502 is used to limit the first locking hole 108 and the positioning groove 402.

[0055] In some embodiments, in the baler gearbox fixing mechanism, the boss portion 302 of the eccentric sleeve 3 cooperates with the tiger's mouth portion 401 of the limiting member 4, mainly to limit the rotation range of the eccentric sleeve 3 and to accurately position it, so as to ensure the assembly accuracy and working stability of the gearbox 2.

[0056] In some embodiments, the linkage cavity 301 on the eccentric sleeve 3 is aligned with the center of the first insertion hole 107 on the frame 1 by adjusting the eccentric sleeve 3. During installation, the limiting member 4 is not yet fixed to the frame 1. At this time, the limiting member 4 can be used as a handle to rotate the eccentric sleeve 3.

[0057] After the linkage cavity 301 is aligned with the first insertion hole 107, the first pin 501 on the first locking member 5 is inserted into the linkage cavity 301 and the first insertion hole 107 in sequence to achieve the assembly accuracy of the shaft-hole fit. Then, the tiger's mouth part 401 on the limiting member 4 is fixed to the boss part 302, and the first locking hole 108 and the positioning groove 402 are fixed in sequence by the first bolt 502, thereby completing the upper positioning of the gearbox 2.

[0058] In some embodiments, the positioning groove 402 is an arc-shaped structure and its length is greater than the diameter of the first bolt 502. The longer arc shape can increase the application range of the limiting member 4. This positioning method makes the assembly process more intuitive and controllable, and improves the efficiency and quality of assembly.

[0059] See appendix Figure 3 - Appendix Figure 5 The eccentric sleeve 3 has a boss 302 on the side facing the first locking member 5. The limiting member 4 has a tiger's mouth 401. The boss 302 is located in the tiger's mouth 401. When the limiting member 4 is in the first state, the tiger's mouth 401 is used to rotate the boss 302. When the limiting member 4 is in the second state, the limiting member 4 is connected to the frame 1 and is used to limit the eccentric sleeve 3.

[0060] In some embodiments, the limiting member 4 is used to limit the rotation angle of the eccentric sleeve 3, preventing excessive rotation of the eccentric sleeve 3 from causing assembly deviations, thereby ensuring adjustment accuracy. The eccentric sleeve 3 is the core adjustment component, and through the design of different shaft centers, fine adjustment of the center position of the shaft hole can be achieved.

[0061] In some embodiments, the shape and side length of the boss portion 302 correspond to the jaw portion 401, thereby limiting the eccentric sleeve 3 by the limiting member 4. The boss portion 302 of the eccentric sleeve 3 is located within the jaw portion 401 of the limiting member 4. In the first state, that is, during installation and positioning, the limiting member 4 drives the eccentric sleeve 3 to rotate through the boss portion 302. Since the shape and size of the jaw portion 401 are fixed, when the fixing is completed, that is, in the second state, it restricts the rotation of the eccentric sleeve 3 and the boss portion 302. This prevents the eccentric sleeve 3 from rotating, which could cause the center of the hole on the gearbox 2 to be misaligned with the center of the hole on the frame 1, ensuring the accuracy and safety of the adjustment.

[0062] See appendix Figure 1 and attached Figure 5 The distance between the axis of the threaded hole 204 and the axis of the second locking cavity 203 is equal to the distance between the axis of the second pin 601 and the axis of the second bolt 602.

[0063] In some embodiments, during the installation process, in order to improve the installation accuracy and avoid the second locking member 6 not being able to be installed due to too large an error, the distance between the threaded hole 204 and the second locking cavity 203 is equal to the distance between the second pin 601 and the second bolt 602.

[0064] In some embodiments, the second locking member 6 is a reference fastener connecting the second insertion hole 105 on the frame 1 and the second locking cavity 203 on the gearbox 2, providing an initial positioning reference for the assembly of the gearbox 2. During installation, the second locking cavity 203 and the second insertion hole 105 are first aligned, and the second locking hole 106 is aligned with the threaded hole 204. Then, the second pin 601 on the second locking member 6 is inserted into the second insertion hole 105 and the second locking cavity 203 in sequence. Finally, the second bolt 602 is fixed into the threaded hole 204 to complete the quick locking of the second mounting seat 201 on the gearbox 2.

[0065] See appendix Figure 1 - Appendix Figure 2 The frame 1 is made of steel.

[0066] In some embodiments, in order to further improve the strength of the equipment, avoid damage to the frame 1 after prolonged use and extend its service life, the frame 1 is made of high-strength steel.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fixed structure for a bundling device, characterized in that, include: The frame (1) includes a first positioning plate (104) and a second positioning plate (103), with a gap between the first positioning plate (104) and the second positioning plate (103); The gearbox (2) includes a first mounting base (202) and a second mounting base (201), wherein the first mounting base (202) is connected to a first positioning plate (104) and the second mounting base (201) is connected to a second positioning plate (103); Eccentric sleeve (3), when the gearbox (2) is installed on the frame (1), the eccentric sleeve (3) is used to eliminate the deviation between the first mounting seat (202) and the first positioning plate (104); The first mounting base (202) has a first locking cavity (205); the first positioning plate (104) has a through first insertion hole (107); the eccentric sleeve (3) has a linkage cavity (301) axially inside, and the axis of the linkage cavity (301) and the axis of the eccentric sleeve (3) have an eccentricity distance along the radial direction of the eccentric sleeve (3). The eccentric sleeve (3) is rotatably installed in the first locking cavity (205). When the eccentric sleeve (3) rotates, the linkage cavity (301) rotates relative to the first insertion hole (107).

2. The fixing structure according to claim 1, characterized in that, The frame (1) is provided with a first crossbeam (102) and a second crossbeam (101), the second crossbeam (101) is provided with at least one second positioning plate (103), and the first positioning plate (104) is provided on the first crossbeam (102).

3. The fixing structure according to any one of claims 1 or 2, characterized in that, The second mounting base (201) is provided at least one, and the second mounting base (201) is correspondingly provided with the second positioning plate (103). Each second mounting base (201) is fixedly provided on the corresponding second positioning plate (103).

4. The fixing structure according to any one of claims 1 or 2, characterized in that, The fixing structure also includes a first locking member (5), which includes a first pin (501). The first pin (501) is inserted into the linkage cavity (301) and the first socket (107) and is used to limit the linkage cavity (301) and the first socket (107).

5. The fixing structure according to claim 4, characterized in that, The fixing structure also includes a limiting member (4), and the first positioning plate (104) is provided with a through first locking hole (108). The limiting member (4) is provided with a positioning groove (402). The first locking member (5) is also threaded with a first bolt (502). The first bolt (502) is inserted into the first locking hole (108) and the positioning groove (402) and is used to limit the first locking hole (108) and the positioning groove (402).

6. The fixing structure according to claim 5, characterized in that, The eccentric sleeve (3) has a boss (302) on the side facing the first locking member (5). The limiting member (4) has a tiger's mouth (401) and the boss (302) is located inside the tiger's mouth (401). When the limiting member (4) is in the first state, the tiger's mouth (401) is used to rotate the boss (302). When the limiting member (4) is in the second state, the limiting member (4) is connected to the frame (1) and is used to limit the eccentric sleeve (3).

7. The fixing structure according to any one of claims 1 or 2, characterized in that, The second mounting base (201) has a through second locking cavity (203), and the second positioning plate (103) has a through second insertion hole (105). The fixing structure also includes a second locking member (6), which includes a second pin (601). The second pin (601) is inserted into the second locking cavity (203) and the second insertion hole (105) to limit the second locking cavity (203) and the second insertion hole (105).

8. The fixing structure according to claim 7, characterized in that, The second positioning plate (103) is also provided with a through second locking hole (106), the second mounting base (201) is also provided with a through threaded hole (204), and the second locking member (6) is also threaded with a second bolt (602). The second bolt (602) is inserted into the second locking hole (106) and the threaded hole (204) and is used to limit the second locking hole (106) and the threaded hole (204).

9. The fixing structure according to claim 8, characterized in that, The distance between the axis of the threaded hole (204) and the axis of the second locking cavity (203) is equal to the distance between the axis of the second pin (601) and the axis of the second bolt (602).

10. The fixing structure according to any one of claims 1 or 2, characterized in that, The frame (1) is made of steel.

Images