Electric control gear shifting response mechanism of tractor chassis
By combining an electronic control system and a hydraulic system on the tractor chassis, and using a hydraulic telescopic rod to drive the rack and pinion to move, the sliding rack and pinion can mesh between different gears. This solves the problems of complex operation and slow response speed of existing tractor shifting response mechanisms, and achieves efficient and smooth electronic shifting operation.
Patent Information
- Application Number
- CN202520651041.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-04-09
AI Technical Summary
Existing tractor shift response mechanisms are complex to operate, relying on manual shifting and mechanical control systems, resulting in high operational difficulty and slow response speed. Furthermore, they are not integrated with electronic shifting systems, failing to fully leverage the efficiency and precision of the electronic control system and thus making it difficult to meet the demand for rapid response.
The system combines an electronic control system with a hydraulic system. The large and small gears on the power shaft mesh with gears of different gear positions, and the hydraulic telescopic rod drives the rack to move, so that the sliding rack moves between the first gear and the second gear. The electronic control system controls the meshing of the sliding rack with the locking block to realize the power transmission between the first and second gears.
It achieves efficient, smooth, and rapid response in tractor gear shifting, improves the convenience of operation and response speed, and makes full use of the efficiency and precision of the electronic control system.
Smart Images
Figure CN223725375U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tractor chassis technical field especially relates to a tractor chassis electric control gear shifting response mechanism. BACKGROUND
[0002] As important equipment in agricultural machinery, tractors are widely used in plowing, seeding, harvesting and other various farmland operations, and its chassis is an important part of the tractor, bearing the engine, transmission system and other key components, ensuring the stable operation of the tractor, in the transmission system, the gear shifting response mechanism plays a vital role, responsible for reasonable power switching, ensuring that the tractor can operate efficiently and stably under different working conditions, directly affecting the operation efficiency and operation convenience of the tractor.
[0003] The operation process of the existing tractor gear shifting response mechanism is relatively complex, usually requiring manual gear shifting by the operator, relying on a complex mechanical control system, in the long-term use process, the manual gear shifting mode not only increases the difficulty and complexity of operation, but also leads to slow response speed during gear shifting, and the existing gear shifting response mechanism is not combined with the electric control gear shifting system, and cannot fully utilize the efficiency and accuracy of the electric control system, relying on manual operation to complete the gear shifting process, making it difficult for the tractor gear shifting operation to meet the demand for rapid response.
[0004] Therefore, in view of the above problems existing in the prior art, the utility model installs the base on the tractor chassis, and makes the power of the engine transmitted to the gear transmission system through the power shaft, combines the electric control system with the hydraulic system, realizes the electric control gear shifting operation, the large gear and the small gear on the power shaft engage the gears of different gears respectively, and the hydraulic telescopic rod drives the driving rack to move, the driving gear drives the transmission gear to rotate, and then the sliding rack moves between the first gear and the second gear, when the sliding rack moves to the first gear direction, the connecting mechanism synchronously drives the rotating gear to engage the first block, so that the transmission shaft obtains the first power transmission, when gear shifting, the hydraulic telescopic rod is reversely contracted, the sliding rack moves towards the second gear direction, and then drives the rotating gear to engage the second block, realizing the second power output, solving the problem that the existing tractor gear shifting response mechanism is not combined with the electric control gear shifting system, leading to complex response mechanism and slow gear shifting operation response speed. SUMMARY
[0005] In order to overcome the problem of the common tractor chassis electric control gear shifting response mechanism, the existing tractor gear shifting response mechanism is complex to operate, relying on manual gear shifting and mechanical control system, leading to large operation difficulty and slow response, and not combined with the electric control gear shifting system, unable to fully utilize the efficiency and accuracy of the electric control system, difficult to meet the demand for rapid response.
[0006] The utility model discloses a technical scheme for a tractor chassis electric control gear shifting response mechanism, comprising a mounting base, a transmission shaft and a power shaft.
[0007] As a preferred, the mounting holes are symmetrically distributed at the four corners of the mounting base, the moving slot is located near the top of the protective frame, the sliding rack is located directly above the moving slot, the transmission shaft is located near the front of the protective frame, and the power shaft is located near the back of the protective frame.
[0008] As a preferred, the sliding rack is meshed with a transmission gear on the outer side wall, the transmission gear is rotatably connected to the top of the protective frame, the transmission gear is meshed with a drive gear on the outer side wall, the drive gear is rotatably connected to the top of the protective frame, and the drive gear is located away from the sliding rack.
[0009] As a preferred, the drive gear is meshed with a drive rack on the outer side wall, the drive rack is slidably connected to the top of the protective frame, the drive rack is located away from the sliding rack, and the drive rack is fixedly connected with a hydraulic telescopic rod at one end away from the sliding rack, and the hydraulic telescopic rod is fixedly connected to the top of the protective frame.
[0010] As a preferred, the transmission shaft is internally provided with a sliding groove, the sliding groove is symmetrically distributed at the center of the transmission shaft, the transmission shaft is slidably connected with a sliding shaft on the outer side wall, the sliding shaft is slidably connected in the sliding groove, the sliding shaft is fixedly connected with a connecting buckle on the outer side wall, the connecting buckle is fixedly connected with a connecting rod on the outer side wall, the connecting rod is slidably connected in the moving slot, the connecting rod is fixedly connected to the bottom of the sliding rack at one end away from the connecting buckle, the sliding shaft is fixedly connected with a rotating gear at both ends, and the rotating gears are symmetrically installed at both ends of the sliding shaft.
[0011] As a preferred, one end of the transmission shaft is rotatably connected with a first gear, the other end of the transmission shaft is rotatably connected with a second gear, the first gear and the second gear are rotatably connected to the inner side wall of the protective frame, a first clamping block is fixedly connected to one side of the first gear near the sliding shaft, and a second clamping block is fixedly connected to one side of the second gear near the sliding shaft.
[0012] As preferred, one end of the power shaft is fixedly connected with a pinion, the other end of the power shaft is fixedly connected with a gear wheel, the pinion and the gear wheel are rotationally connected on the inner side wall of the protective frame, the pinion is engaged on the outer side wall of the second gear, and the gear wheel is engaged on the outer side wall of the first gear.
[0013] The utility model discloses the beneficial effect that:
[0014] 1、When the mechanism prepares, first, the installation base is fixed on the chassis of external tractor through the installation hole, then, the engine of external tractor is connected with the one end of power shaft through the protective frame, simultaneously, the driving wheel of tractor is connected to the both ends of transmission shaft, finally, the electric control system and hydraulic system required by electric control gear shifting are connected with hydraulic telescopic rod, ensure the stable transmission of power, complete the preparation work of mechanism, the gear shifting response mechanism is structured with electric control gear shifting system, realize more efficient gear shifting operation.
[0015] 2、When the mechanism starts to use, after starting external engine, drive power shaft to rotate, make gear wheel drive first gear rotate, pinion drive second gear rotate, at this time, tractor is in neutral state, external electric control system controls external hydraulic system, make hydraulic telescopic rod lengthen, push driving rack to move, driving rack drive driving gear to rotate, further drive transmission gear to rotate, make sliding rack move, sliding rack drive connecting rod to slide, simultaneously, drive connecting buckle to move, connecting buckle push sliding shaft to slide, until make rotation gear and first block engage, at this time, first gear drive rotation gear to rotate through first block, and transmit power to sliding shaft, further drive transmission shaft to rotate, control gear shifting operation through electric control system, and realize first power transmission of tractor power.
[0016] 3、When the mechanism gear shifts, external electric control system controls external hydraulic system, makes hydraulic telescopic rod contract, drive driving rack to move, driving rack drive driving gear to rotate, further drive transmission gear to rotate, make sliding rack move, sliding rack drive connecting rod to slide, simultaneously, drive connecting buckle to move, connecting buckle push sliding shaft to slide, until rotation gear and second block engage, at this time, second gear drive rotation gear to rotate through second block, and transmit power to sliding shaft, further drive transmission shaft to rotate, at this time, tractor power is second gear, realize second gear power output, complete electric control gear shifting response operation, realize smooth, fast power output. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 The overall top view structure schematic diagram of the utility model is shown;
[0018] Figure 2 The overall top view structure schematic diagram of the utility model is shown;
[0019] Figure 3 A sliding rack structure schematic view of the utility model is shown.
[0020] Figure 4 A power shaft structure schematic view of the utility model is shown.
[0021] Figure 5 A transmission shaft structure schematic view of the utility model is shown.
[0022] Mark explanation: 1, installation base; 2, mounting hole; 3, protective frame; 4, moving groove; 5, sliding rack; 501, transmission gear; 502, driving gear; 503, driving rack; 504, hydraulic telescopic rod; 6, transmission shaft; 601, sliding groove; 602, sliding shaft; 603, connecting rod; 604, connecting buckle; 605, rotating gear; 606, first gear; 607, first block; 608, second gear; 609, second block; 7, power shaft; 701, pinion; 702, gear. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0024] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a tractor chassis electric control gear shifting response mechanism, including installation base 1, transmission shaft 6 and power shaft 7;The inside of installation base 1 is provided with mounting hole 2, and the top of installation base 1 is fixedly connected with protective frame 3, the inside of protective frame 3 is provided with moving groove 4, and the top of protective frame 3 is slidably connected with sliding rack 5, and transmission shaft 6 and power shaft 7 are rotatably connected in the inside of installation base 1, transmission shaft 6 penetrates the two sides of installation base 1, and power shaft 7 penetrates the side of installation base 1.
[0025] Mounting hole 2 is symmetrically distributed in the four corners of installation base 1, moving groove 4 is located at the position close to the top of protective frame 3, sliding rack 5 is located at the position above moving groove 4, transmission shaft 6 is located at the position close to the front of protective frame 3, power shaft 7 is located at the position close to the back of protective frame 3, and installation base 1 and mounting hole 2 ensure that the overall mechanism is uniformly stressed when being installed with tractor chassis, to improve structural stability.
[0026] The outer side wall of the sliding rack 5 is engaged with a transmission gear 501, the transmission gear 501 is rotationally connected to the top of the protective frame 3, the outer side wall of the transmission gear 501 is engaged with a driving gear 502, the driving gear 502 is rotationally connected to the top of the protective frame 3, and the driving gear 502 is located away from the sliding rack 5, thereby enhancing the stability of the transmission gear 501 and the driving gear 502 and indirectly improving the stability of the gear shifting operation.
[0027] The outer side wall of the driving gear 502 is engaged with a driving rack 503, the driving rack 503 is slidingly connected to the top of the protective frame 3, the driving rack 503 is located away from the sliding rack 5, one end of the driving rack 503 away from the sliding rack 5 is fixedly connected with a hydraulic telescopic rod 504, the hydraulic telescopic rod 504 is fixedly connected to the top of the protective frame 3, the hydraulic telescopic rod 504 can directly drive the driving rack 503 to move, thereby rapidly driving the driving gear 502 to rotate and ensuring the smooth transmission of the power of the hydraulic system and improving the response capability of the gear shifting operation.
[0028] The transmission shaft 6 is internally provided with a sliding groove 601, the sliding grooves 601 are symmetrically distributed at the center position of the transmission shaft 6, the outer side wall of the transmission shaft 6 is slidingly connected with a sliding shaft 602, the sliding shaft 602 is slidingly connected in the interior of the sliding groove 601, the outer side wall of the sliding shaft 602 is fixedly connected with a connecting buckle 604, the outer side wall of the connecting buckle 604 is fixedly connected with a connecting rod 603, the connecting rod 603 is slidingly connected in the interior of the moving groove 4, one end of the connecting rod 603 away from the connecting buckle 604 is fixedly connected to the bottom of the sliding rack 5, both ends of the sliding shaft 602 are fixedly connected with a rotating gear 605, the rotating gears 605 are symmetrically installed at both ends of the sliding shaft 602, the sliding groove 601 ensures that the sliding shaft 602 can slide in a fixed track, avoids shaking or deviation of the sliding shaft 602 during use, and further improves the overall stability of the mechanism.
[0029] One end of the transmission shaft 6 is rotationally connected with a first gear 606, the other end of the transmission shaft 6 is rotationally connected with a second gear 608, the first gear 606 and the second gear 608 are rotationally connected to the inner side wall of the protective frame 3, one side of the first gear 606 close to the sliding shaft 602 is fixedly connected with a first clamping block 607, one side of the second gear 608 close to the sliding shaft 602 is fixedly connected with a second clamping block 609, the first clamping block 607 and the second clamping block 609 transmit the power of the first gear 606 and the second gear 608 to the rotating gear 605, thereby driving the sliding shaft 602 and the transmission shaft 6 to rotate and realizing the division of different gears.
[0030] The power shaft 7 is fixedly connected with a small gear 701 at one end, and a large gear 702 at the other end. The small gear 701 and the large gear 702 are rotationally connected to the inner side wall of the protective frame 3. The small gear 701 is engaged with the outer side wall of the second gear 608, and the large gear 702 is engaged with the outer side wall of the first gear 606. The small gear 701 and the large gear 702 are respectively engaged with the second gear 608 and the first gear 606, so as to realize power transmission of the power shaft 7, and realize the differentiation of gear power through different gear ratios.
[0031] Working principle: according to Figures 1 to 2 When the mechanism is ready, first, the mounting base 1 is fixed on the chassis of the external tractor through the mounting hole 2, then the engine of the external tractor is connected with the power shaft 7 penetrating one end of the protective frame 3, at the same time, the driving wheels of the tractor are connected to the two ends of the transmission shaft 6, finally, the electric control system and the hydraulic system required for electric control gear shifting are connected with the hydraulic telescopic rod 504, to ensure stable transmission of power, and complete the preparation work of the mechanism.
[0032] According to Figures 3 to 5 When the mechanism is used, first, the external engine is started to drive the power shaft 7 to rotate, so that the large gear 702 drives the first gear 606 to rotate, and the small gear 701 drives the second gear 608 to rotate. At this time, the rotating gear 605 is not engaged with the first clamping block 607 or the second clamping block 609, and the tractor is in neutral state. Then, the external hydraulic system is controlled by the external electric control system to make the hydraulic telescopic rod 504 elongate, push the driving rack 503 to move towards the front of the protective frame 3, drive the driving gear 502 to rotate clockwise, and then drive the transmission gear 501 to rotate counterclockwise, so that the sliding rack 5 moves towards the direction of the first gear 606, the sliding rack 5 drives the connecting rod 603 to slide in the moving groove 4, at the same time, the connecting buckle 604 is driven to move towards the direction of the first gear 606, the connecting buckle 604 pushes the sliding shaft 602 to slide in the outer side wall of the transmission shaft 6 and the sliding groove 601, until the rotating gear 605 is engaged with the first clamping block 607. At this time, the first gear 606 drives the rotating gear 605 to rotate through the first clamping block 607, and transmits power to the sliding shaft 602, and then drives the transmission shaft 6 to rotate, so as to transmit the power of the external engine to the transmission shaft 6, and realize the first power transmission of the tractor power.
[0033] According to Figures 3 to 5When the mechanism shifts, first, the external hydraulic system is controlled by the external electric control system, the hydraulic telescopic rod 504 is retracted, the driving rack 503 is driven to move to the back of the protection frame 3, the driving rack 503 drives the driving gear 502 to rotate counterclockwise, further drives the transmission gear 501 to rotate clockwise, the sliding rack 5 is driven to move to the direction of the second gear 608, the sliding rack 5 drives the connecting rod 603 to slide in the moving groove 4, at the same time, the driving connecting buckle 604 is driven to move to the direction of the second gear 608, the connecting buckle 604 drives the sliding shaft 602 to slide in the outer side wall of the transmission shaft 6 and the sliding groove 601, until the rotating gear 605 meshes with the second gear block 609, at this time, the second gear 608 drives the rotating gear 605 to rotate through the second gear block 609, and transmits power to the sliding shaft 602, further drives the transmission shaft 6 to rotate, at this time, the tractor power is the second gear, realizes the second gear power output, completes the electric control shift response operation.
[0034] The above is the working process of the whole device, and the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.
[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A tractor chassis electric control gear shifting response mechanism, comprising a mounting base (1), a transmission shaft (6) and a power shaft (7); characterized in that: The inside of the mounting base (1) is provided with mounting holes (2), the top of the mounting base (1) is fixedly connected with a protective frame (3), the inside of the protective frame (3) is provided with a moving slot (4), the top of the protective frame (3) is slidably connected with a sliding gear rack (5), the transmission shaft (6) and the power shaft (7) are rotatably connected inside the mounting base (1), the transmission shaft (6) penetrates through both sides of the mounting base (1), and the power shaft (7) penetrates through one side of the mounting base (1).
2. A tractor chassis electrically controlled gear shifting response mechanism according to claim 1, characterized in that: The mounting holes (2) are symmetrically distributed at the four corners of the mounting base (1), the moving slot (4) is located close to the top of the protective frame (3), the sliding gear rack (5) is located directly above the moving slot (4), the transmission shaft (6) is located close to the front of the protective frame (3), and the power shaft (7) is located close to the back of the protective frame (3).
3. A tractor chassis electrically controlled gear shifting response mechanism according to claim 1, characterized in that: The outer side wall of the sliding gear rack (5) is meshed with a transmission gear (501), the transmission gear (501) is rotatably connected to the top of the protective frame (3), the outer side wall of the transmission gear (501) is meshed with a drive gear (502), the drive gear (502) is rotatably connected to the top of the protective frame (3), and the drive gear (502) is located away from the sliding gear rack (5).
4. A tractor chassis electrically controlled gear shift response mechanism according to claim 3, characterized in that: The outer side wall of the drive gear (502) is meshed with a drive gear rack (503), the drive gear rack (503) is slidably connected to the top of the protective frame (3), the drive gear rack (503) is located away from the sliding gear rack (5), one end of the drive gear rack (503) away from the sliding gear rack (5) is fixedly connected with a hydraulic telescopic rod (504), and the hydraulic telescopic rod (504) is fixedly connected to the top of the protective frame (3).
5. A tractor chassis electrically controlled gear shifting response mechanism according to claim 1, characterized in that: The inside of the transmission shaft (6) is provided with a sliding groove (601), the sliding grooves (601) are symmetrically distributed at the center of the transmission shaft (6), the outer side wall of the transmission shaft (6) is slidably connected with a sliding shaft (602), the sliding shaft (602) is slidably connected inside the sliding groove (601), the outer side wall of the sliding shaft (602) is fixedly connected with a connecting buckle (604), the outer side wall of the connecting buckle (604) is fixedly connected with a connecting rod (603), the connecting rod (603) is slidably connected inside the moving slot (4), one end of the connecting rod (603) away from the connecting buckle (604) is fixedly connected to the bottom of the sliding gear rack (5), both ends of the sliding shaft (602) are fixedly connected with rotary gears (605), and the rotary gears (605) are symmetrically installed at both ends of the sliding shaft (602).
6. A tractor chassis electrically controlled gear shift response mechanism according to claim 5, wherein: One end of the transmission shaft (6) is rotatably connected with a first gear (606), the other end of the transmission shaft (6) is rotatably connected with a second gear (608), the first gear (606) and the second gear (608) are rotatably connected on the inner side wall of the protection frame (3), one side of the first gear (606) close to the sliding shaft (602) is fixedly connected with a first clamping block (607), one side of the second gear (608) close to the sliding shaft (602) is fixedly connected with a second clamping block (609).
7. A tractor chassis electrically controlled gear shift response mechanism according to claim 6, wherein: One end of the power shaft (7) is fixedly connected with a pinion (701), the other end of the power shaft (7) is fixedly connected with a large gear (702), the pinion (701) and the large gear (702) are rotatably connected on the inner side wall of the protection frame (3), the pinion (701) is engaged on the outer side wall of the second gear (608), the large gear (702) is engaged on the outer side wall of the first gear (606).