Universal multifunctional gearbox for agriculture and building
By designing a multi-functional gearbox suitable for both agriculture and construction, and employing a combination of limit grooves and limit rods, the problems of traditional gearboxes being limited in function and cumbersome to disassemble and assemble are solved. This enables convenient disassembly and assembly of the gearbox and flexible adjustment, thereby improving the adaptability and efficiency of the machinery.
Patent Information
- Application Number
- CN202520091082.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Traditional gearboxes have limited functionality, making them difficult to adapt to complex and changing operating environments. Their disassembly and assembly processes are cumbersome, affecting the efficiency and adaptability of agricultural and construction machinery.
A multi-functional gearbox suitable for both agriculture and construction was designed. The combination of the gearbox body, auxiliary frame, mounting plate and fixing bolts enables convenient disassembly and flexible adjustment. The use of limit grooves and limit rods enhances structural stability and transmission accuracy.
It enables convenient disassembly and flexible adjustment of the gearbox, improving the adaptability and efficiency of agricultural and construction machinery, and reducing maintenance difficulty and cost.
Smart Images

Figure CN223839672U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gearbox technology, specifically relating to a multi-functional gearbox suitable for both agriculture and construction. Background Technology
[0002] In the fields of agricultural machinery and construction, gearboxes are the core transmission components of various machines. Their performance and functions directly affect the efficiency and adaptability of the machinery. In recent years, with the continuous improvement of agricultural modernization and construction mechanization, the performance requirements for gearboxes have also increased. Traditional gearbox designs often focus on a single transmission function, which is difficult to meet the needs of complex and ever-changing operating environments.
[0003] In the field of agricultural machinery, such as harvesters, seeders, and tillers, gearboxes need to adapt to different operating speeds, loads, and soil conditions. However, traditional gearboxes are often single-function and lack sufficient flexibility and adjustability, which limits the adaptability and efficiency of agricultural machinery when facing different operating environments. At the same time, when agricultural machinery malfunctions or needs repair, the disassembly and assembly process of traditional gearboxes is cumbersome and complicated, often requiring a lot of time and manpower, which seriously affects the maintenance efficiency and operating costs of agricultural machinery. Therefore, it is necessary for staff to improve them. Utility Model Content
[0004] The purpose of this invention is to provide a multi-functional gearbox applicable to both agriculture and construction, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A versatile, agricultural and construction-grade gearbox, comprising:
[0007] Gearbox body;
[0008] An auxiliary frame is attached to one side of the gearbox body, a drive rod is rotatably connected to the back of the auxiliary frame, and a transmission rod is rotatably connected to the surface of the gearbox body.
[0009] Multiple sets of first mounting plates are fixedly connected to the surface of the gearbox body, multiple sets of second mounting plates are fixedly connected to the surface of the auxiliary frame, an assembly frame is fixedly connected to the surface of the gearbox body, a first connecting rod is rotatably connected to the top of the assembly frame, a handle is fixedly connected to the top of the first connecting rod, a first drive gear is fixedly connected to the bottom of the first connecting rod, first transmission gears are meshed on both sides of the bottom of the surface of the first drive gear, a movable rod is fixedly connected to one side of the first transmission gear, and a second drive gear is fixedly connected to the front end of the movable rod.
[0010] Preferably, the second drive gear is meshed with a second transmission gear on its surface, and a connecting sleeve is fixedly connected to the back of the second transmission gear. The inner wall of the connecting sleeve has multiple sets of limiting grooves. A second connecting rod is slidably connected to the inner wall of the connecting sleeve. A limiting rod is fixedly connected to the surface of the second connecting rod, and the surface of the limiting rod is slidably connected to the inner wall of the limiting groove.
[0011] Preferably, a positioning rod is slidably inserted into the tail end of the second connecting rod, and a fixing bolt is fixedly connected to the front end of the second connecting rod, with the surface of the fixing bolt threadedly connected to the inner wall of the first mounting plate and the second mounting plate.
[0012] Preferably, a mounting ring is fixedly connected to the surface of the first mounting plate, and the inner wall of the mounting ring is threadedly connected to the inner wall of the fixing bolt.
[0013] Preferably, a protective frame is fixedly connected to the surface of the gearbox body, and the inner wall of the protective frame is sleeved on the inner wall of the second drive gear and the second transmission gear.
[0014] Preferably, the surface of the drive rod is provided with a first connecting gear, the surface of the first connecting gear is meshed with a second connecting gear, the bottom sides of the second connecting gear are meshed with third connecting gears, the bottoms of the two third connecting gears are meshed with fourth connecting gears, and the inner walls of the two fourth connecting gears are respectively fixedly connected to the two drive rods. The first connecting gear has 20 teeth, the second connecting gear and the two third connecting gears all have 31 teeth, one of the fourth connecting gears has 13 teeth, and the other of the fourth connecting gears has 27 teeth.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] With the arrangement of the gearbox body, auxiliary frame, first mounting plate, second mounting plate, and fixing bolts, when the handle is rotated during use, the first drive gear rotates accordingly. The rotation of the first drive gear further transmits power to the first transmission gear meshing with it. The first transmission gear drives the movable rod on one side to rotate, and the second drive gear at the front end of the movable rod meshes with the second transmission gear, realizing the re-transmission of power. The inner wall of the connecting sleeve connected to the back of the second transmission gear not only has multiple sets of limiting grooves, but also allows the second connecting rod to slide inside it. The limiting rod on the surface of the second connecting rod can slide along the inner wall of the limiting groove. The tail end of the second connecting rod is fixed by a positioning rod to prevent it from shifting during transmission, while the front end of the second connecting rod is fixedly connected to the fixing bolt. The fixing bolt not only firmly connects the first mounting plate and the second mounting plate, but also further enhances the structural stability through the threaded connection of the mounting ring. This facilitates the easy installation and removal of the fixing bolt and prevents it from falling off after removal. During installation, it can be directly rotated for installation, thus achieving the effect of easy and quick installation and removal of the gearbox and making it convenient for operators to use. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present utility model;
[0018] Figure 2 This is a perspective view of the assembly frame of this utility model;
[0019] Figure 3 This is a perspective view of the first drive gear of this utility model;
[0020] Figure 4 This is a perspective view of the connecting sleeve of this utility model;
[0021] Figure 5 This is a plan view of the connecting gear of this utility model;
[0022] In the diagram: 1. Gearbox body; 2. Auxiliary frame; 3. Drive rod; 4. Transmission rod; 5. First mounting plate; 6. Second mounting plate; 7. Assembly frame; 8. First connecting rod; 9. Grip; 10. First drive gear; 11. First transmission gear; 12. Movable rod; 13. Second drive gear; 14. Second transmission gear; 15. Connecting sleeve; 16. Limiting groove; 17. Second connecting rod; 18. Limiting rod; 19. Positioning rod; 20. Fixing bolt; 21. Mounting ring; 22. Protective frame. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1:
[0025] Please see Figures 1 to 5 As shown, a multi-functional gearbox suitable for both agriculture and construction includes:
[0026] Gearbox body 1;
[0027] An auxiliary frame 2 is attached to one side of the gearbox body 1. A drive rod 3 is rotatably connected to the back of the auxiliary frame 2. A transmission rod 4 is rotatably connected to the surface of the gearbox body 1. As the core component, the gearbox body 1 bears the operation of the entire transmission system. The auxiliary frame 2 is connected to the gearbox body 1 through the drive rod 3 on its back, providing additional support and driving force for the gearbox. The transmission rod 4 is rotatably connected to the surface of the gearbox body 1 to realize the transmission of power.
[0028] Multiple sets of first mounting plates 5 are fixedly connected to the surface of the gearbox body 1, and multiple sets of second mounting plates 6 are fixedly connected to the surface of the auxiliary frame 2. An assembly frame 7 is fixedly connected to the surface of the gearbox body 1. A first connecting rod 8 is rotatably connected to the top of the assembly frame 7. A handle 9 is fixedly connected to the top of the first connecting rod 8. A first drive gear 10 is fixedly connected to the bottom end of the first connecting rod 8. First transmission gears 11 are meshed on both sides of the bottom surface of the first drive gear 10. A movable rod 12 is fixedly connected to one side of the first transmission gear 11. A second drive gear 13 is fixedly connected to the front end of the movable rod 12. A second transmission gear 14 is meshed on the surface of the second drive gear 13. A connecting sleeve 15 is fixedly connected to the back of the second transmission gear 14. Multiple sets of limiting grooves 16 are formed on the inner wall of the connecting sleeve 15. A second connecting rod 17 is slidably connected to the inner wall of the connecting sleeve 15. A limiting rod 18 is fixedly connected to the surface of the second connecting rod 17, and the surface of the limiting rod 18 is slidably connected to the inner wall of the limiting groove 16. A positioning rod 19 is slidably inserted into the tail end of the second connecting rod 17. A fixing bolt 20 is fixedly connected to the front end of the second connecting rod 17, and the surface of the fixing bolt 20 is threadedly connected to the inner wall of the first mounting plate 5 and the second mounting plate 6. A mounting ring 21 is fixedly connected to the surface of the first mounting plate 5, and the inner wall of the mounting ring 21 is threadedly connected to the inner wall of the fixing bolt 20. A protective frame 22 is fixedly connected to the surface of the gearbox body 1, and the inner wall of the protective frame 22 is sleeved on the second drive gear 13 and the second transmission gear 14. When the handle 9 is rotated, the first drive gear 10 rotates accordingly. The rotation of the first drive gear 10 further transmits power to the first transmission gear 11, which meshes with it. Since the first transmission gear 11 is fixedly connected to the movable rod 12, the movable rod 12 also rotates accordingly. The second drive gear 13 at the front end of the movable rod 12 meshes with the second transmission gear 14, realizing the re-transmission of power. The inner wall of the connecting sleeve 15 connected to the back of the second transmission gear 14 not only has multiple sets of limiting grooves 16, but also allows the second connecting rod 17 to slide inside it. The limiting rod 18 on the surface of the second connecting rod 17 can slide along the inner wall of the limiting groove 16, which not only increases the stability of the structure, but also ensures the accuracy of the second connecting rod 17 in the transmission process. The tail end of the connecting rod 17 is fixed by the positioning rod 19 to prevent displacement during transmission. The front end of the second connecting rod 17 is fixedly connected to the fixing bolt 20. The fixing bolt 20 not only firmly connects the first mounting plate 5 and the second mounting plate 6, but also further enhances the structural stability through the threaded connection of the mounting ring 21. The protective frame 22 is fitted onto the inner wall of the second drive gear 13 and the second transmission gear 14, providing protection and preventing damage to the gears during operation. This facilitates the easy installation and removal of the fixing bolt 20 and prevents it from falling off after removal. During installation, it can be directly rotated for installation. The surface of the drive rod 3 is provided with a first connecting gear, and the surface of the first connecting gear is meshed with the second connecting gear.The bottom sides of the second connecting gear are meshed with third connecting gears, and the bottoms of the two third connecting gears are meshed with fourth connecting gears. The inner walls of the two fourth connecting gears are fixedly connected to two transmission rods. The first connecting gear has 20 teeth, the second connecting gear and the two third connecting gears each have 31 teeth. One of the fourth connecting gears has 13 teeth, and the other has 27 teeth. The driving force is transmitted to the first connecting gear through the drive rod. The rotation of the first connecting gear drives the rotation of the second connecting gear. The first connecting gear has 20 teeth, while the second connecting gear has 31 teeth. The difference in the number of teeth affects the speed ratio between them. The speed of the second connecting gear will be 20 / 31 times the speed of the first connecting gear. The rotation of the second connecting gear simultaneously drives the rotation of the two third connecting gears. Each connecting gear has 31 teeth, so the speed ratio between the third and second connecting gears is the same. The rotation of each third connecting gear drives the rotation of a fourth connecting gear. The two fourth connecting gears have different numbers of teeth: one has 13 teeth and the other has 27 teeth. Therefore, their speed ratios with their respective connected third connecting gears will also be different. Specifically, the speed of the 13-tooth fourth connecting gear will be 31 / 13 of the speed of its connected third connecting gear, while the speed of the 27-tooth fourth connecting gear will be 31 / 27 of the speed of its connected third connecting gear. The rotation of the fourth connecting gears is directly transmitted to the drive rods. Thus, the 13-tooth fourth connecting gear acts on the front axle drive rod 4, and the 27-tooth fourth connecting gear acts on the rear axle drive rod 4, creating different working speeds to achieve different soil-crushing effects.
[0029] Example 2:
[0030] Please see Figures 1 to 5 As shown, in the field of agricultural machinery, traditional gearboxes often have a single function and are difficult to meet the needs of different agricultural operating environments. For example, in different agricultural operations such as harvesting, sowing, and tilling, it is difficult to disassemble and repair them conveniently when problems are encountered. Traditional gearboxes are often difficult to adjust flexibly, thus limiting the adaptability and efficiency of agricultural machinery.
[0031] Similarly, in the construction industry, gearboxes are also key components of various construction machinery. For example, construction machinery such as excavators, loaders, and road rollers are difficult to disassemble and repair conveniently during operation. However, traditional gearboxes often fail to meet these needs, resulting in low construction efficiency.
[0032] For agricultural machinery such as harvesters, seeders, and tillers, as well as construction machinery such as excavators, loaders, and road rollers, a suitable agricultural and construction universal multi-functional gearbox is selected based on the operating characteristics and needs of each type of machinery. This gearbox is designed with a main body 1 and an auxiliary frame 2 that connects to it, allowing for flexible adjustments according to different operating environments.
[0033] During the debugging phase, by rotating the handle 9, observe the meshing and transmission efficiency of the first drive gear 10, the first transmission gear 11, the movable rod 12, the second drive gear 13, and the second transmission gear 14 to ensure that the fit between the components is tight and the transmission is accurate.
[0034] When agricultural or construction machinery malfunctions or requires repair, the gearbox can be easily disassembled and installed using the threaded connection between the fixing bolt 20 and the mounting ring 21, without the need for complicated disassembly steps and tools. Meanwhile, the second connecting rod 17 can slide within the connecting sleeve 15 and is positioned by the cooperation of the limiting rod 18 and the limiting groove 16.
[0035] To meet the needs of agricultural and construction machinery in different operating environments, this gearbox can be easily disassembled and assembled by adjusting the transmission ratio and steering of components such as the first drive gear 10, the first transmission gear 11, the movable rod 12, and the second drive gear 13.
[0036] Working principle: The gearbox body 1, as the core component of the entire transmission system, bears the responsibility for the system's operation. The auxiliary frame 2 is connected to the gearbox body 1 via the drive rod 3 on its back, providing additional support and driving force for the gearbox. Simultaneously, the transmission rod 4 is rotatably connected to the surface of the gearbox body 1, realizing power transmission.
[0037] Multiple sets of first mounting plates 5 and second mounting plates 6 are fixedly connected to the surfaces of the gearbox body 1 and auxiliary frame 2, respectively. These mounting plates not only provide a stable mounting base, but also connect to other structures through components such as fixing bolts 20, further enhancing the stability of the entire structure and the reliability of the transmission.
[0038] The assembly frame 7 allows the first connecting rod 8 to be rotatably connected at its top. As a key transmission component, the first connecting rod 8 has an operating interface at one end via the handle 9, allowing the user to easily drive the entire transmission system by rotating the handle 9. The other end of the first connecting rod 8 is fixedly connected to the first drive gear 10; when the handle 9 is rotated, the first drive gear 10 rotates accordingly.
[0039] After the first drive gear 10 rotates, its power is transmitted to the first transmission gear 11 that meshes with it. A movable rod 12 is fixedly connected to one side of the first transmission gear 11, and a second drive gear 13 is fixedly connected to the front end of the movable rod 12. In this way, the rotation of the first drive gear 10 is transmitted to the second drive gear 13 through the first transmission gear 11 and the movable rod 12, realizing the transmission of power and speed change.
[0040] The surface of the second drive gear 13 is meshed with a second transmission gear 14, and the back of the second transmission gear 14 is fixedly connected to a connecting sleeve 15. Multiple sets of limiting grooves 16 are formed on the inner wall of the connecting sleeve 15, and a second connecting rod 17 is slidably connected to the inner wall of the connecting sleeve 15. A limiting rod 18 is fixedly connected to the surface of the second connecting rod 17, and the surface of the limiting rod 18 is slidably connected to the inner wall of the limiting groove 16. This arrangement allows the second connecting rod 17 to slide within the connecting sleeve 15 and to be positioned by the cooperation of the limiting rod 18 and the limiting groove 16, thereby achieving different transmission ratios and steering adjustments.
[0041] In addition, a positioning rod 19 is slidably inserted into the tail end of the second connecting rod 17 to further fix the position of the second connecting rod 17. The front end of the second connecting rod 17 is threadedly connected to the inner wall of the first mounting plate 5 or the second mounting plate 6 by a fixing bolt 20 to achieve the fixation and assembly of the entire structure.
[0042] When agricultural or construction machinery malfunctions or requires repair, the gearbox can be easily disassembled and installed using the threaded connection between the fixing bolt 20 and the mounting ring 21, without the need for complicated disassembly steps and tools. Meanwhile, because the second connecting rod 17 can slide within the connecting sleeve 15 and is positioned by the engagement of the limiting rod 18 and the limiting groove 16, the gearbox can be flexibly adjusted according to different operating environments to meet the needs of agricultural and construction machinery in various working conditions.
[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-functional gearbox suitable for both agriculture and construction, characterized in that, include: Gearbox body (1); An auxiliary frame (2) is attached to one side of the gearbox body (1), a drive rod (3) is rotatably connected to the back of the auxiliary frame (2), and a transmission rod (4) is rotatably connected to the surface of the gearbox body (1). Multiple sets of first mounting plates (5) are fixedly connected to the surface of the gearbox body (1), multiple sets of second mounting plates (6) are fixedly connected to the surface of the auxiliary frame (2), an assembly frame (7) is fixedly connected to the surface of the gearbox body (1), a first connecting rod (8) is rotatably connected to the top of the assembly frame (7), a handle (9) is fixedly connected to the top of the first connecting rod (8), a first drive gear (10) is fixedly connected to the bottom end of the first connecting rod (8), a first transmission gear (11) is meshed on both sides of the bottom of the surface of the first drive gear (10), a movable rod (12) is fixedly connected to one side of the first transmission gear (11), and a second drive gear (13) is fixedly connected to the front end of the movable rod (12).
2. The multi-functional gearbox for both agriculture and construction according to claim 1, characterized in that: The second drive gear (13) is meshed with a second transmission gear (14) on its surface. A connecting sleeve (15) is fixedly connected to the back of the second transmission gear (14). The inner wall of the connecting sleeve (15) has multiple sets of limiting grooves (16). A second connecting rod (17) is slidably connected to the inner wall of the connecting sleeve (15). A limiting rod (18) is fixedly connected to the surface of the second connecting rod (17), and the surface of the limiting rod (18) is slidably connected to the inner wall of the limiting groove (16).
3. The multi-functional gearbox for both agriculture and construction according to claim 2, characterized in that: The tail end of the second connecting rod (17) is slidably inserted with a positioning rod (19), and the front end of the second connecting rod (17) is fixedly connected with a fixing bolt (20), and the surface of the fixing bolt (20) is threadedly connected to the inner wall of the first mounting plate (5) and the second mounting plate (6).
4. The multi-functional gearbox for both agriculture and construction according to claim 1, characterized in that: The surface of the first mounting plate (5) is fixedly connected to a mounting ring (21), and the inner wall of the mounting ring (21) is threadedly connected to the inner wall of the fixing bolt (20).
5. The multi-functional gearbox for both agriculture and construction according to claim 1, characterized in that: A protective frame (22) is fixedly connected to the surface of the gearbox body (1), and the inner wall of the protective frame (22) is sleeved on the inner wall of the second drive gear (13) and the second transmission gear (14).
6. The multi-functional gearbox for both agriculture and construction according to claim 1, characterized in that: The surface of the drive rod (3) is provided with a first connecting gear, the surface of the first connecting gear is meshed with a second connecting gear, the bottom sides of the second connecting gear are meshed with third connecting gears, the bottoms of the two third connecting gears are meshed with fourth connecting gears, and the inner walls of the two fourth connecting gears are fixedly connected to the two transmission rods respectively. The first connecting gear has 20 teeth, the second connecting gear and the two third connecting gears all have 31 teeth, one of the fourth connecting gears has 13 teeth, and the other of the fourth connecting gears has 27 teeth.