Agricultural mechanical speed reducer

Abstract

An agricultural machinery speed reducer relates to the technical field of agricultural machinery chassis and driving, effectively reduces the quantity of transmission shafts and transmission gears through integration of a plurality of speed reducers, reduces the production cost, can effectively simplify the operation difficulty, and is simple to use. The main speed reducer comprises a main speed reducer body, a rotary tillage speed reducer body and a rear axle speed reducer body, an input shaft of the main speed reducer body is connected with an output shaft of an engine through a clutch, the main speed reducer body comprises a first output shaft and a second output shaft, and a shaft head bevel gear is arranged at the end of the first output shaft; the end of an input shaft of the rotary tillage speed reducer is provided with disc-shaped bevel teeth matched with the shaft head bevel teeth, and the end of the first output shaft is connected with an input shaft of the rear axle speed reducer through a universal joint coupler.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery chassis and driving technology, in particular to an agricultural machinery reducer. Background Art

[0002] Agricultural machinery primarily encompasses equipment used for tillage, sowing, harvesting, and farm management. With the advancement of agricultural modernization, operators are increasingly demanding easier, more convenient, and more versatile equipment. Reducers are a core component of agricultural machinery, second only to the engine. Optimizing their structure can significantly improve product upgrades and reduce costs.

[0003] Regarding tillage machinery, while low-cost micro-tillage machines are relatively inexpensive, they require a high level of operator stamina and pose a risk of operational errors. Larger tillage equipment also faces geographical limitations, making it difficult to navigate small, hilly areas. Furthermore, their complex structure and operation often lead to higher prices. Therefore, reducing costs, simplifying the operation of agricultural machinery, and improving integration are crucial for small, hilly plots. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] In view of the deficiencies of the existing technology, the utility model proposes an agricultural machinery reducer, which effectively reduces the number of transmission shafts and transmission gears and reduces production costs by integrating multiple reducers, and can effectively simplify operation difficulty and is easy to use.

[0006] 2. Specific technical solutions

[0007] A reducer assembly for agricultural machinery includes a main reducer, a rotary tillage reducer and a rear axle reducer. The input shaft of the main reducer is connected to the output shaft of the engine through a clutch. The main reducer includes a first output shaft and a second output shaft. The end of the first output shaft is provided with a shaft head bevel gear. The end of the input shaft of the rotary tillage reducer is a disc-shaped bevel gear that matches the shaft head bevel gear. The end of the first output shaft is connected to the input shaft of the rear axle reducer through a universal joint coupling.

[0008] Implementation principle and working principle:

[0009] In this solution, the main reducer, rotary tillage reducer and rear axle reducer are integrated, wherein the input shaft of the main reducer transmits the power of the engine to the main reducer through the clutch, and then transmits the power to the rotary tillage reducer and the rear axle reducer respectively through the first output shaft and the second output shaft of the main reducer, thereby realizing rotary tillage power output and walking power output; the use of shaft head bevel gears and disc bevel gears is conducive to improving the integration of the main reducer and the rotary tillage reducer, improving the space utilization within the assembly, reducing the number of gears and shafts, and reducing costs; the rear axle reducer and the second output shaft of the main reducer are connected by a universal joint coupling, which similarly improves the overall integration of the assembly and improves the space utilization, thereby effectively reducing the volume of agricultural machinery and having better adaptability to hilly areas.

[0010] Preferably: splines are provided on both sides of the input shaft, and a mounting sleeve is further connected to the side of the input shaft close to the clutch through splines, and the mounting sleeve is provided with a first gear, a second gear and a third gear in sequence along the side far from the clutch; the beneficial effect of this preferred embodiment is that the mounting sleeve and the shaft are connected by splines, so that the mounting sleeve can rotate with the input shaft and can also move along the axial direction of the input shaft, so that the first gear, the second gear and the third gear can be engaged with the corresponding speed gear for transmission.

[0011] Preferably, the first input shaft is provided with a traveling double-toothed gear through a bearing on the side away from the clutch, and the traveling double-toothed gear includes a traveling small gear and a traveling large gear arranged in sequence along the direction away from the clutch; the beneficial effect of this preferred embodiment is that through the setting of the traveling double-toothed gear, the traveling small gear and the traveling large gear can be selected for driving according to the working conditions to provide different speeds for the first or second output shaft.

[0012] Preferably, the first output shaft is provided with a first speed gear, a second speed gear and a third speed gear in sequence along the axial direction close to the shaft head bevel teeth on one side of the shaft head; the beneficial effect of this preferred embodiment is that power output of different gears is achieved by cooperating with different gear teeth through the first speed gear, the second speed gear and the third speed gear.

[0013] Preferably, the first output shaft is provided with a spline on the side away from the shaft head bevel gear, and a transmission gear matching the spline is provided on the first output shaft, and the transmission gear can slide on the first output shaft and can engage with the traveling large gear; a driving double tooth is also provided on the first output shaft, and the driving double tooth is located between the transmission gear and the first speed gear, and matching chucks are respectively provided on the side close to the transmission gear and the driving double tooth.

[0014] Preferably, the drive duplex gear comprises a large drive gear and a small drive gear arranged in sequence along the direction of the bevel gear near the shaft head, the large drive gear being in constant mesh with the travel pinion; an output gear is provided on the second output shaft, the output gear being in constant mesh with the drive pinion. Preferably, the final reducer further comprises a reverse shaft, the reverse gear being provided on the reverse shaft, and a first fixed gear being fixedly provided on the first output shaft and in constant mesh with the reverse gear, the first fixed gear being located between the first speed change gear and the second speed change gear; the advantageous effect of this preferred embodiment is that, by providing the reverse gear, the output of the first output shaft can be reversed, thereby achieving reverse travel.

[0015] The beneficial effects of the utility model are:

[0016] In this solution, the main reducer, rotary tillage reducer and rear axle reducer are integrated, wherein the input shaft of the main reducer transmits the power of the engine to the main reducer through the clutch, and then transmits the power to the rotary tillage reducer and the rear axle reducer respectively through the first output shaft and the second output shaft of the main reducer, thereby realizing rotary tillage power output and walking power output. The high degree of integration reduces the number of gears and shafts and reduces costs.

[0017] The combination of shaft head bevel gear and disc bevel gear is beneficial to improving the integration of the main reducer and rotary tillage reducer, improving the space utilization within the assembly, reducing the number of gears and shafts, and reducing costs; connecting the rear axle reducer and the second output shaft of the main reducer through a universal joint coupling similarly improves the overall integration of the assembly and improves space utilization, thereby effectively reducing the size of agricultural machinery and improving adaptability to hilly areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the general assembly structure of the agricultural machinery reducer of the utility model.

[0019] Figure 2 It is a three-dimensional schematic diagram of the transmission structure of the agricultural machinery reducer of the present utility model.

[0020] Figure 3 This is a front view schematic diagram of the transmission structure of the agricultural machinery reducer of the present utility model.

[0021] Figure 4 This is a schematic diagram of the explosion of a utility model agricultural machinery reducer.

[0022] Description of reference numerals:

[0023] Main reducer 100, rotary tillage reducer 200, rear axle reducer 300, first input shaft 400, clutch 500, universal joint coupling 600, first output shaft 101, second output shaft 102, shaft head bevel gear 103, mounting sleeve 104, first gear gear 105, second gear gear 106, third gear gear 107, travel pinion 108, travel gearwheel 109, first speed change gear 110, second speed change gear 111, third speed change gear 112, transmission gear 113, chuck 114, drive gearwheel 115, drive pinion 116, output gear 117, reverse gear shaft 118, reverse gear 119, first fixed gear 120. DETAILED DESCRIPTION

[0024] The following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the scope of protection of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. Figure 1 As shown:

[0025] A reducer for agricultural machinery includes a main reducer 100, a rotary tillage reducer 200 and a rear axle reducer 300, wherein the first input shaft 400 of the main reducer 100 is connected to the output shaft of the engine through a clutch 500, wherein the specific structure of the clutch 500 is a conventional setting and will not be described in detail here. The output shaft of the rotary tillage reducer 200 is used to output power to the rotary tillage mechanism, and the output shaft of the rear axle reducer 300 is used to connect to the rear drive wheel to provide walking power.

[0026] When implementing, if Figure 2 and Figure 3 The main reducer 100 includes a first output shaft 101 and a second output shaft 102, wherein a shaft head bevel gear 103 is processed at the end of the first output shaft 101, and a disc-shaped bevel gear 201 is processed at the end of the input shaft of the rotary tillage reducer 200, wherein the disc-shaped bevel gear 201 cooperates with the shaft head bevel gear 103. The power of the main reducer 100 is transmitted to the rotary tillage reducer 200 through the cooperation of the disc-shaped bevel gear 201 and the shaft head bevel gear 103. The cooperation of the disc-shaped bevel gear 201 and the shaft head bevel gear 103 is conducive to improving the integration of the main reducer 100 and the rotary tillage reducer 200, improving the space utilization within the assembly, reducing the amount of gears and shafts, and reducing costs.

[0027] When implementing, if Figure 1 and Figure 4A spline is processed at the end of the second output shaft 102, and is connected to one end of the universal joint coupling 600 through a key connection. The other end of the universal joint coupling 600 is connected to the second input shaft 301 of the rear axle reducer 300, wherein the second input shaft 301 of the rear axle reducer 300 is also processed with a spline and is connected to the universal joint coupling 600 through the spline. The rear axle reducer 300 and the second output shaft 102 of the main reducer 100 are connected through the universal joint coupling 600. Similarly, the overall integration of the assembly is improved, the space utilization rate is improved, and the volume of agricultural machinery can be effectively reduced, and the adaptability to hilly areas is better.

[0028] When implementing, if Figure 2 and Figure 3 , splines are provided on both sides of the first input shaft 400, wherein a mounting sleeve 104 is further connected via splines on the side of the first input shaft 400 close to the clutch 500, and a first gear 105, a second gear 106 and a third gear 107 are integrally formed or welded in sequence on the mounting sleeve 104 along the axial direction away from the clutch 500 side, wherein the sizes of the first gear 105, the second gear 106 and the third gear 107 are successively reduced, and the first gear 105, the second gear 106 and the third gear 107 are used to provide power of different gears for the first output shaft 101; a traveling double-linked tooth is provided on the first input shaft 400 away from the clutch 500 through a bearing, wherein the traveling double-linked tooth includes a traveling small gear 108 and a traveling large gear 109 connected in sequence via keys along the axial direction away from the clutch 500 side, wherein the traveling small gear 108 and the traveling large gear 109 rotate coaxially. During implementation, as Figure 2 and Figure 3 On one side of the shaft head bevel gear 103 of the first output shaft 101, a first speed gear 110, a second speed gear 111 and a third speed gear 112 are sequentially arranged along the axial direction close to the shaft head bevel gear 103; through the external shift fork wave mounting sleeve 104, the first gear teeth 105 and the third speed gear 112 can be meshed, the second gear teeth 106 and the second speed gear 111 can be meshed, and the third speed gear 112 and the third gear teeth 107 can be meshed to achieve power output at different gears;

[0029] During implementation, a spline is provided on the side of the first output shaft 101 away from the shaft head tapered tooth 103, and a mating transmission gear 113 mating with the spline is provided on the first output shaft 101, wherein the transmission gear 113 can be driven to move axially along the keyway along the first output shaft through an externally connected shift fork; during implementation, a driving double tooth is also connected to the first output shaft 101 through a bearing, wherein the driving double tooth is located between the transmission gear 113 and the first speed change tooth 110, and mating chucks 114 are respectively provided on the side close to the transmission gear 113 and the driving double tooth. Specifically, there are two groups of chucks 114, which are respectively welded to the left side of the driving double tooth and the right side of the transmission gear 113. Through the cooperation of the chuck 114, the transmission gear 113 can drive the driving double tooth to rotate.

[0030] When implementing, if Figure 3 The driving double gears are fixedly connected from left to right: a driving gear 115 and a driving gear 116, wherein the driving gear 115 is constantly meshed with the traveling gear 108; an output gear 117 is provided on the second output shaft 102, and the output gear 117 is constantly meshed with the driving gear 116;

[0031] When implementing, if Figure 2 and Figure 3 The main reducer 100 also includes a reverse gear shaft 118, on which a reverse gear 119 is keyed. A first fixed gear 120 that is constantly meshed with the reverse gear 119 is also fixedly provided on the first output shaft 101. The first fixed gear 120 is located between the first speed change gear 110 and the second speed change gear 111.

[0032] The power of the assembly is input by the first input shaft 400, wherein the mounting sleeve 104 on the first input shaft 400 is driven to move left and right by the external shift fork, so that the first gear 105 of the first input shaft 400 and the third speed gear 112 on the first output shaft 101, the second gear 106 on the first input shaft 400 and the second speed gear 111 on the first output shaft 101, and the third gear 107 on the first input shaft 400 and the first speed gear 110 on the first output shaft 101 are engaged, which can provide the first output shaft 101 with three speeds from high to low speed / power output, thereby providing different speeds or power outputs for the rotary tillage reducer 200;

[0033] Regarding the output of the second output shaft 102, that is, the principle of power input of the rear axle reducer 300, when the rear axle reducer 300 is in high-speed output, the chuck 114 on 113 and 115 is connected through the external shift fork. At this time, the power of 101 is transmitted to the driving gear 115 through the transmission gear 113, and is reduced in speed and output to the second output shaft 102 through the output gear 117 that is constantly meshed with the driving gear 115. This is the high-speed gear for travel.

[0034] When the rear axle reducer 300 is at low speed, the external shift fork drives the transmission gears 113 and 109 to engage. At this time, the power output path of the first output shaft 101 is that the transmission gear 113 is decelerated and output to the traveling large gear 109. The traveling large gear 109 and the traveling small gear 108 are double gears. The power is directly transmitted to the traveling small gear 108 and then decelerated and output to the driving small gear 116 through the constantly meshed driving large gear 115. Since the driving large gear 115 and the driving small gear 116 are double teeth, the power is further decelerated and output to the output gear 117 through the driving small gear 116, which has undergone three decelerations. This is the traveling low speed gear.

[0035] When the third gear tooth 107 is engaged with the reverse gear 119 , the first output shaft 101 and the second output shaft 102 can be reversed, so that all outputs are reversed to achieve reverse gear.

[0036] 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention shall be defined by the appended claims.

Claims

1. An agricultural machinery reducer, comprising a main reducer (100), a rotary tillage reducer (200) and a rear axle reducer (300), wherein a first input shaft (400) of the main reducer (100) is connected to an output shaft of an engine via a clutch (500), and characterized in that: The main reducer (100) comprises a first output shaft (101) and a second output shaft (102); the end of the first output shaft (101) is provided with a shaft head bevel gear (103); the end of the input shaft of the rotary tillage reducer (200) is a disc-shaped bevel gear (201) matched with the shaft head bevel gear (103); the end of the second output shaft (102) is connected to the second input shaft (301) of the rear axle reducer (300) via a universal joint coupling (600).

2. The agricultural machinery reducer according to claim 1, characterized in that: Splines are provided on both sides of the first input shaft (400), and a mounting sleeve (104) is further connected to the side of the first input shaft (400) close to the clutch (500) through the spline. The mounting sleeve (104) is provided with a first gear (105), a second gear (106) and a third gear (107) in sequence along the side away from the clutch (500).

3. The agricultural machinery reducer according to claim 2, characterized in that: The first input shaft (400) is provided with a traveling double gear through a bearing on a side away from the clutch (500), and the traveling double gear comprises a traveling small gear (108) and a traveling large gear (109) sequentially arranged in a direction away from the clutch (500).

4. The agricultural machinery reducer according to claim 3, characterized in that: The first output shaft (101) is provided with a first speed gear (110), a second speed gear (111) and a third speed gear (112) in sequence along the axial direction close to the shaft head bevel gear (103) on one side of the shaft head bevel gear (103).

5. The agricultural machinery reducer according to claim 4, characterized in that: The first output shaft (101) is provided with a spline on a side away from the shaft head bevel gear (103); a transmission gear (113) matched with the spline is provided on the first output shaft (101); the transmission gear (113) can slide on the first output shaft (101) and can mesh with the travel gear (109); a driving double-linked tooth is also provided on the first output shaft (101); the driving double-linked tooth is located between the driving gear (113) and the first speed change gear (110); and matching chucks (114) are respectively provided on the sides close to the transmission gear (113) and the driving double-linked tooth.

6. The agricultural machinery reducer according to claim 5, characterized in that: The driving double gear comprises a driving gear (115) and a driving gear (116) which are sequentially arranged along a direction close to the shaft head cone gear (103); the driving gear (115) is constantly meshed with the traveling gear (108).

7. The agricultural machinery reducer according to claim 6, characterized in that: An output gear (117) is provided on the second output shaft (102), and the output gear (117) is constantly meshed with the driving pinion (116).

8. The agricultural machinery reducer according to claim 1, characterized in that: The main reducer (100) further comprises a reverse gear shaft (118), a reverse gear (119) being provided on the reverse gear shaft (118), a first fixed gear (120) being fixedly provided on the first output shaft (101) and being constantly meshed with the reverse gear (119), and the first fixed gear (120) being located between the first speed change gear (110) and the second speed change gear (111).

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