Self-propelled tobacco field intertillage ridger gear engaging mechanism
Through the connecting rod mechanism, the gear operation of the tiller ridge is simplified and the gear shift is realized in front of the gearbox is realized. Combined with the L-shaped clutch operating lever and arc plate components, the problem of cumbersome gear operation and low safety in the prior art is solved. , improves operation convenience and safety.
Patent Information
- Application Number
- CN202420833655.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-19
AI Technical Summary
The gear gear of the existing self-propelled cycling ridges is cumbersome and inconvenient, the wire pulling mechanism is chaotic, and the emergency power cutting function is lacking, resulting in high operation difficulty and low safety.
The connecting rod mechanism is used instead of the pull wire for gear operation, simplifying the gear mechanism, realizing the front shift operation of the transmission, and improving the safety of walking power cutting through the L-shaped clutch operating lever and arc plate assembly.
It has achieved simplification and convenience of gear operation, improved operator safety and operation convenience, and quickly cut off power in emergencies, enhancing the safety of the use of tillage ridge cranes.
Smart Images
Figure CN222170370U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of intertillage ridging machines, in particular to a gear-engaging mechanism for a self-propelled tobacco field intertillage ridging machine. Background Art
[0002] In the existing flue-cured tobacco planting process, the formation of soil ridges is generally achieved by using a tillage ridging machine, and then the tobacco is planted on the soil ridges. The ridging cutters of some existing self-propelled tillage ridging machines are generally arranged behind the gearbox of the ridging machine. As the ridging machine continues to move forward, the ridging cutters form the soil ridges. The gear operating lever of the existing gearbox is also arranged at the rear of the gearbox. Because the ridging machine is large, the operator is at a large distance from the gearbox gear operating lever at the rear, and then during the process of traveling, it is not convenient to operate the gearbox gear. Further, the gearbox gear operation of some existing ridging machines is realized by a wire pulling mechanism, and each gear operation requires a wire pulling mechanism to operate, and multiple gears require multiple wire pulling mechanisms, which leads to more wire pulling on the gearbox, and the layout of the wire pulling is relatively chaotic. At the same time, the operation changes of the gears are also relatively cumbersome. Further, the walking power clutch control end of the existing tillage ridging machine does not have an emergency separation operation, which causes the tillage ridging machine to fail to smoothly cut off the walking power in the event of an accident. In response to the above-mentioned problems existing in the existing tillage ridging machines, the applicant's relevant technical personnel and the relevant technical personnel of the Fengqing Branch of the Lincang Company of Yunnan Tobacco Company conducted repeated discussions and research, and finally proposed the design ideas of the technical solution of this application. Utility Model Content
[0003] The utility model aims to provide a gear engaging mechanism for a self-propelled tobacco field tillage ridging machine. The gear engaging mechanism utilizes a connecting rod mechanism instead of a pull wire to perform gear shifting operations. The structure is simple, and the gear mechanism is simplified. At the same time, the gear shifting operation is performed in front of the gearbox, which makes the gear shifting operation convenient. Furthermore, the second [-shaped clutch operating lever and the third L-shaped clutch operating lever can both be used to cut off the walking power, thereby improving the safety of the ridging machine.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a gear shifting mechanism of a self-propelled tobacco field tillage and ridging machine, including a gearbox and a front gear shifting operating assembly, a gear shifting lever for realizing travel speed change is arranged on the upper rear side of the gearbox, a support cover is arranged on the upper part of the gearbox, the front gear shifting operating assembly includes a connecting head, a connecting rod, an operating inner gear rod, and an operating outer gear rod, the operating outer gear rod, the operating inner gear rod, the connecting rod and the connecting head are connected in sequence from front to back, the connecting head is fixedly connected to the gear shifting lever, the middle part of the operating inner gear rod is sleeved in a front and rear through hole of the support cover, and the gear shifting operation can be realized on the front side of the gearbox by utilizing the gear shifting operating mechanism composed of the operating outer gear rod, the operating inner gear rod, the connecting rod and the connecting head.
[0005] Preferably, two limiting rings distributed on the front and rear sides of the front and rear through holes are provided in the middle of the operating inner stop rod, and a swing gap is reserved between the limiting rings and the corresponding side walls of the support cover to facilitate the swing of the operating inner stop rod.
[0006] Furthermore, the front end of the connecting rod extends to the upper right front and is fixedly connected to the rear end of the operating inner block rod, the front part of the operating inner block rod is sleeved in the I-shaped gear shift groove set on the support cover, the rear part of the operating outer block rod is fixedly connected to the front part of the operating inner block rod, and the front end of the operating outer block rod extends to the upper right front.
[0007] Furthermore, two gear position indicator plates distributed left and right are respectively arranged on the upper and lower parts of the I-shaped gear shifting groove.
[0008] Furthermore, the connecting head includes a first sleeve and a first square tube, the first sleeve is fixedly sleeved on the gear shift lever, the first square tube is fixedly arranged on the right side of the first sleeve, and a spherical connecting head is fixedly arranged at the rear end of the connecting rod, and the spherical connecting head is movably sleeved in the first square tube.
[0009] Furthermore, a second sleeve is fixedly sleeved on the rear portion of the operating inner stop rod, and the front portion of the connecting rod is fixedly connected to the side wall of the second sleeve.
[0010] Furthermore, it includes a handlebar, the rear end of which is arranged above the support cover, and the front side of the handlebar is divided into a left handle and a right handle. The gear-engaging mechanism also includes a clutch safety operation component, and the clutch safety operation component includes a first clutch operating lever and a second [-shaped clutch operating lever. The bottom of the first clutch operating lever is rotatably arranged on a first supporting shaft arranged under the right handle at an upper position. An arc plate is arranged at the bottom of the first clutch operating lever, and the rear part of the arc plate is connected to the clutch cable on the gearbox. A clutch limit plate is arranged on the right handle. A long circular hole distributed frontward and rearward is arranged on the clutch limiting plate, the middle part of the first clutch operating rod is sleeved in the long circular hole, a second supporting shaft opposite to the first supporting shaft is arranged at the lower part of the left handle, the second [-shaped clutch operating rod spans between the left handle and the right handle, and the two ends of the second [-shaped clutch operating rod are rotatably connected with the corresponding first supporting shaft and second supporting shaft respectively, a first shifting rod is fixedly arranged at the lower front part of the arc plate, and the first shifting rod is fixedly connected with the side wall of the second [-shaped clutch operating rod opposite to the left handle.
[0011] Furthermore, a third L-shaped clutch operating lever is rotatably arranged on the first supporting shaft, and a tension spring is arranged below the clutch limiting plate, the front end of the tension spring is fixedly hung at the bending part of the third L-shaped clutch operating lever, and the tension spring can pull the third L-shaped clutch operating lever to rotate upward and press against the lower part of a vertical limiting plate arranged on the right handle, and a second lever is fixedly arranged on the upper front side of the arc plate, and the second lever is located below the cross bar of the third L-shaped clutch operating lever.
[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure and is convenient to manufacture; the front gear operation component is a connecting rod mechanism, which replaces the existing pull-wire shifting mechanism, thus realizing the gear operation structure of the gearbox of some existing intertillage ridging machines, simplifying the gear operation, and making the gear operation simple; further, the gear shifting outer operating lever is located on the front side of the gearbox, so that during the ridging operation, the operator can also easily and conveniently realize the gear change of the gearbox, and the operating safety is also improved; during the ridging operation, when the operator touches the second L-shaped clutch operating lever, the action power is cut off, thereby ensuring the safety of the operation, and the second L-shaped clutch operating lever has a large span range, which is convenient for realizing power cutting; further, by pressing the third L-shaped clutch operating lever, the travel power can also be quickly cut off, which increases the emergency treatment plan for cutting off the travel power in the event of an accident, thereby realizing the safety of use of the self-propelled intertillage ridging machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model from a first perspective;
[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;
[0016] Figure 3 It is a schematic diagram of the distribution of the front gear operation components;
[0017] Figure 4 for Figure 1 Enlarged view of point A in the middle;
[0018] Figure 5 for Figure 2 Enlarged view of point B in the middle;
[0019] Figure 6 for Figure 3 Enlarged view of point C in the middle;
[0020] In the figure: 1 gearbox, 11 gear shift lever, 12 support cover, 121 I-shaped gear slot, 122 gear indicator plate, 21 connector, 211 first sleeve, 212 first square tube, 221 spherical connector, 22 connecting rod, 23 operating inner lever, 231 second sleeve, 232 limiting ring, 24 operating outer lever, 3 handrail, 31 left handle, 311 second support shaft, 32 right handle, 321 first support shaft, 322 clutch limiting plate, 3211 oblong hole, 323 vertical limiting plate, 41 first clutch operating rod, 411 arc plate, 412 first lever, 413 clutch cable, 414 second lever, 42 second [-shaped clutch operating rod, 43 third L-shaped clutch operating rod, 44 tension spring, 5 running wheel, 6 gasoline engine. DETAILED DESCRIPTION
[0021] The following will be combined with specific embodiments and attached Figure 1-6 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the utility model, not all of the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0022] The utility model provides a gear-engaging mechanism for a self-propelled tobacco field tillage ridging machine (such as Figure 1 As shown), it includes a gearbox 1 and a front gear operating component. The gearbox 1 is a commonly used technical product in the field of existing self-propelled tillage ridgers. Therefore, the specific structure and function of the gearbox 1 will not be described in detail here. The gasoline engine 6 of some existing self-propelled tillage ridgers is generally fixed at the front of the gearbox 1, and the ridger is arranged at the rear of the gearbox 1. Two walking wheels are arranged on both sides of the walking power output end at the bottom of the gearbox 1. The power provided by the gasoline engine 6 to the gearbox 1 is used to drive the walking wheel 5, and then the self-propelled tillage ridger is driven. At the same time, the gearbox 1 drives the ridging rotary knife at the rear to rotate, thereby realizing the ridging operation. A gear shift lever 11 for realizing travel speed change is arranged on the upper rear side of the gearbox 1, and a support cover 12 is arranged on the upper part of the gearbox 1. The front gear operation assembly includes a connecting head 21, a connecting rod 22, an operating inner gear rod 23, and an operating outer gear rod 24. The operating outer gear rod 24, the operating inner gear rod 23, the connecting rod 22 and the connecting head 21 are connected in sequence from front to back. The connecting head 21 is fixedly connected to the gear shift lever 11, and the middle part of the operating inner gear rod 23 is sleeved in a front and rear through hole of the support cover 12. The gear shift operation mechanism composed of the operating outer gear rod 24, the operating inner gear rod 23, the connecting rod 22 and the connecting head 21 can realize gear shift operation on the front side of the gearbox 1. The front gear operation assembly is a connecting rod structure, which is simpler than the existing cable shift mechanism, thereby simplifying the gear operation mechanism of the gearbox 1. At the same time, the gear operation is performed using a connecting rod mechanism, and its operation method is simpler and more reliable than the existing cable shift operation method. When the outer gear rod 24 is operated, it drives the inner gear rod 23 to move. The middle part of the inner gear rod 23 is supported by the front and rear through holes to drive the connecting rod 22. The movement of the connecting rod 22 drives the connecting head 21 to move, and finally realizes the movement of the gear shift lever 11. The directional movement of the gear shift lever 11 realizes the travel speed change of the gearbox 1. The operator can stand on the front side or the right front side of the gearbox 1 to operate the swinging operation of the outer gear rod 24, which can greatly improve the convenience and safety of shifting.
[0023] In actual application, in order to ensure the corresponding shifting of the gear shifting lever 11 when the outer block rod 24 is manipulated, two limiting rings 232 distributed on the front and rear sides of the front and rear through holes are provided in the middle of the operating inner block rod 23, and a swing gap is reserved between the limiting rings 232 and the corresponding side walls of the support cover 12 to facilitate the swinging of the operating inner block rod 23. By utilizing the two limiting rings 232, the operating inner block rod 23 can only move forward and backward within a very small range. If the operating inner block rod 23 can move forward and backward to a certain extent, the operating inner block rod 23 can be swung up, down, left and right on the operating outer block rod 24.
[0024] Furthermore, in order to facilitate the use of the operating outer block rod 24 to realize the gear position change operation at the front of the gearbox 1, the front end of the connecting rod 22 is extended to the upper right front and fixedly connected with the rear end of the operating inner block rod 23, the front part of the operating inner block rod 23 is sleeved in the I-shaped gear-hanging groove 121 provided on the support cover 12, the rear part of the operating outer block rod 24 is fixedly connected with the front part of the operating inner block rod 23, and the front end of the operating outer block rod 24 extends to the upper right front, through the connecting rod 22. The above connection design of the inner operating lever 23 and the outer operating lever 24 realizes the distribution of the outer operating lever 24 on the front right side of the gearbox 1. Further, the specific connection implementation of the connecting head 21 and the gear shift lever 11 is as follows: the connecting head 21 includes a first sleeve 211 and a first square tube 212. The first sleeve 211 is fixedly sleeved on the gear shift lever 11. Specifically, a pressing bolt can be set on the first sleeve 211 to realize the first sleeve 211 being fixedly sleeved on the gear shift lever 11. The first square tube 212 is fixedly arranged on the right side of the first tube 211, and a spherical connector 221 is fixedly arranged at the rear end of the connecting rod 22. The spherical connector 221 is movably sleeved in the first square tube 212. The spherical connector 221 is movably sleeved in the first square tube 212, which facilitates the adjustment of the position of the spherical connector 221 and the first square tube 212. Relative rotation occurs between them, thereby realizing the connecting rod 22 to move the gear shift lever 11; further, a second sleeve 231 is fixedly sleeved on the rear part of the operating inner block rod 23, specifically, a pressing bolt is provided on the second sleeve 231, and the pressing bolt is utilized to realize the pressing fixation of the second sleeve 231 and the operating inner block rod 23. At the same time, it is also convenient to realize the position adjustment of the second sleeve 231 on the operating inner block rod 23, and the front part of the connecting rod 22 is fixedly connected to the side wall of the second sleeve 231.
[0025] In actual application, when the I-shaped gear shifting groove 121 is used to change the gear, in order to facilitate the operator to directly and clearly determine the gear, two gear position signs 122 distributed on the left and right are respectively provided on the upper and lower parts of the I-shaped gear shifting groove 121. The gear position signs 122 have the gear names marked on them, and the gear position can be directly determined by observing the gear name.
[0026] In the early stage of the gear operation, the clutch in the gearbox 1 is generally controlled first to realize power cut-off. After the gear is engaged, the clutch is used to realize power input. In practical applications, the ridging operation environment is relatively complex, and the self-propelled tillage ridger is self-propelled in most cases during the ridging process, and the operator only performs an auxiliary operation on the side, which causes the operator to not always pay attention to the changes of the self-propelled tillage ridger. The clutch operating lever of the existing self-propelled tillage ridger is set on the right handle, and its operable range is small. If an emergency occurs, the operator may not be able to operate the clutch operating lever in time, which will cause the self-propelled tillage ridger to be unable to stop immediately. In order to improve the safe use of the self-propelled tillage ridger, a clutch safety operation component can be set on the handle 3. The clutch safety operation component can expand the operator's clutch operation range, thereby improving safety. The specific implementation of the clutch safety operation component is as follows: the gear mechanism includes a handle 3, and the rear end of the handle 3 is set above the support cover 12. The front side of the handlebar 3 is divided into a left handle 31 and a right handle 32. The gear shifting mechanism also includes a clutch safety operation component, which includes a first clutch operating rod 41 and a second [-shaped clutch operating rod 42. The bottom of the first clutch operating rod 41 is rotatably arranged on a first supporting shaft 321 arranged under the right handle 32. An arc plate 411 is arranged at the bottom of the first clutch operating rod 41. The rear part of the arc plate 411 is connected to the clutch cable 413 on the gearbox 1. A clutch limit plate 322 is arranged on the right handle 32, and a clutch limit plate 322 is arranged on the clutch limit plate 322. The long circular holes 3221 distributed front and back, by toggling the upper end of the first clutch operating rod 41, the first clutch operating rod 41 can swing back and forth in the long circular hole 3221, and at the same time, the arc plate 411 can swing back and forth, and then the clutch pull line 413 can be pulled and released. The middle part of the first clutch operating rod 41 is sleeved in the long circular hole 3221, and a second supporting shaft 311 opposite to the first supporting shaft 321 is arranged at the lower part of the left handle 31. The second [-shaped clutch operating rod 42 spans between the left handle 31 and the right handle 32, and the two ends of the second [-shaped clutch operating rod 42 are respectively connected to the left handle 31 and the right handle 32. The first supporting shaft 321 and the second supporting shaft 311 are rotatably connected to each other. A first lever 412 is fixedly arranged at the lower front part of the arc-shaped plate 411. The first lever 412 is fixedly connected to the side wall of the second [-shaped clutch operating lever 42. In practical applications, the rotation of the first lever 412 is realized by shifting the second [-shaped clutch operating lever 42, and then the rotation of the arc-shaped plate 411 is realized at the same time. The rotation of the arc-shaped plate 411 realizes the pulling of the clutch wire 413. The pulling of the clutch wire 413 can be realized by shifting the first clutch operating lever 41 or the second [-shaped clutch operating lever 42.In order to further improve the emergency safety operation scheme of the clutch, a third L-shaped clutch operating rod 43 is rotatably arranged on the first supporting shaft 321, and a tension spring 44 is arranged below the clutch limiting plate 322. The front end of the tension spring 44 is fixedly hung at the bending part of the third L-shaped clutch operating rod 43, and the tension spring 44 can pull the third L-shaped clutch operating rod 43 to rotate upward and press against the lower part of a vertical limiting plate 323 arranged on the right handle 32. A second lever 411 is fixedly arranged on the upper front side of the arc plate 411. 14, and the second lever 414 is located below the crossbar of the third L-shaped clutch operating rod 43. In actual application, when the second lever 414 is relatively close to the third L-shaped clutch operating rod 43, it means that the clutch is in a power input state. When the third L-shaped clutch operating rod 43 is pressed downward, the second lever 414 is pressed. When the second lever 414 is pressed, the arc plate 411 is rotated, and then the clutch cable 413 is pulled. When the clutch cable 413 is pulled, the clutch power is cut off. ;
[0027] In the present utility model, "upper", "lower", "front", "back", "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.
[0028] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.
[0029] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the utility model, but the utility model is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.
Claims
1. A gear-engaging mechanism for a self-propelled tobacco field tillage ridger, comprising a gearbox, a gear shift lever for realizing travel speed change is arranged on the upper rear side of the gearbox, Its characteristics are: The gear shifting mechanism also includes a front gear shifting operating assembly, a support cover is arranged on the upper part of the gearbox, the front gear shifting operating assembly includes a connecting head, a connecting rod, an operating inner gear rod, and an operating outer gear rod, the operating outer gear rod, the operating inner gear rod, the connecting rod and the connecting head are connected in sequence from front to back, the connecting head is fixedly connected to the gear shifting lever, the middle part of the operating inner gear rod is sleeved in a front and rear through hole of the support cover, and the gear shifting operation mechanism composed of the operating outer gear rod, the operating inner gear rod, the connecting rod and the connecting head can realize the gear shifting operation on the front side of the gearbox.
2. A gear engaging mechanism for a self-propelled tobacco field tillage ridging machine according to claim 1, Its characteristic is that The middle part of the operating inner stopper rod is provided with two limiting rings distributed on the front and rear sides of the front and rear through holes, and a swing gap is reserved between the limiting rings and the corresponding side walls of the support cover to facilitate the swing of the operating inner stopper rod.
3. The gear engaging mechanism of the self-propelled tobacco field tillage ridging machine according to claim 2, Its characteristics are: The front end of the connecting rod extends to the upper right front and is fixedly connected to the rear end of the operating inner block rod. The front part of the operating inner block rod is sleeved in the I-shaped gear shift groove set on the support cover. The rear part of the operating outer block rod is fixedly connected to the front part of the operating inner block rod, and the front end of the operating outer block rod extends to the upper right front.
4. The gear engaging mechanism of the self-propelled tobacco field tillage ridging machine according to claim 3, Its characteristics are: Two gear position marking plates distributed left and right are respectively arranged on the upper and lower parts of the I-shaped gear shifting groove.
5. The gear engaging mechanism of the self-propelled tobacco field tillage ridging machine according to claim 3, Its characteristics are: The connecting head includes a first sleeve and a first square tube, the first sleeve is fixedly sleeved on the gear shift lever, the first square tube is fixedly arranged on the right side of the first sleeve, and a spherical connecting head is fixedly arranged at the rear end of the connecting rod, and the spherical connecting head is movably sleeved in the first square tube.
6. The gear engaging mechanism of the self-propelled tobacco field tillage ridging machine according to claim 5, Its characteristic is that A second sleeve is fixedly sleeved on the rear portion of the operating inner stop rod, and the front portion of the connecting rod is fixedly connected to the side wall of the second sleeve.
7. The gear engaging mechanism of the self-propelled tobacco field tillage ridging machine according to claim 6, Its characteristics are: The gear-engaging mechanism comprises a handrail, the rear end of which is arranged above the support cover, and the front side of the handrail is divided into a left handle and a right handle. The gear-engaging mechanism also comprises a clutch safety operation component, and the clutch safety operation component comprises a first clutch operating lever and a second [-shaped clutch operating lever. The bottom of the first clutch operating lever is rotatably arranged on a first supporting shaft arranged under the right handle at an upper position. An arc plate is arranged at the bottom of the first clutch operating lever, and the rear part of the arc plate is connected to the clutch cable on the gearbox. A clutch limit plate is arranged on the right handle. The clutch limit plate is provided with an oblong hole distributed frontward and rearward, the middle part of the first clutch operating rod is sleeved in the oblong hole, a second supporting shaft opposite to the first supporting shaft is provided at the lower part of the left handle, the second [-shaped clutch operating rod spans between the left handle and the right handle, and the two ends of the second [-shaped clutch operating rod are respectively rotatably connected with the corresponding first supporting shaft and second supporting shaft, a first shifting rod is fixedly provided at the lower front part of the arc plate, and the first shifting rod is fixedly connected with the side wall of the second [-shaped clutch operating rod opposite to the left handle.
8. The gear engaging mechanism of the self-propelled tobacco field tillage ridging machine according to claim 7, Its characteristic is that A third L-shaped clutch operating lever is rotatably arranged on the first supporting shaft, and a tension spring is arranged below the clutch limiting plate, the front end of the tension spring is fixedly hung at the bending part of the third L-shaped clutch operating lever, and the tension spring can pull the third L-shaped clutch operating lever to rotate upward and abut against the lower part of a vertical limiting plate arranged on the right handle, and a second shifting rod is fixedly arranged on the upper front side of the arc plate, and the second shifting rod is located below the cross bar of the third L-shaped clutch operating lever.