Acceleration gearbox applied to agricultural equipment and agricultural equipment

Abstract

The utility model provides a speed increasing gear box applied to agricultural equipment and the agricultural equipment. A speed increasing gear box applied to agricultural equipment comprises an input shaft, a right shell, a first oil seal, an input gear, a respirator, a left shell, a second oil seal and an output gear shaft, the right shell is connected with the left shell, one end of the input shaft is provided with an outer spline, and the other end of the input shaft is provided with an inner spline. The input shaft and the output gear shaft are both rotationally installed in the right shell and the left shell, the input shaft is sleeved with the first oil seal and the input gear, the first oil seal is installed in the right shell, the respirator is installed at the top of the left shell, the output gear is installed in the right shell, and the first oil seal is installed in the right shell. The output gear shaft is sleeved with the second oil seal, and the second oil seal is installed in the left shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to variable speed equipment technical field especially, it relates to a kind of speed-increasing gear box for agricultural equipment and agricultural equipment. BACKGROUND

[0002] Speed-increasing gear box refers to one of important working components of generator, HST (HydroStatic Transmission) system on agricultural equipment, and its main function is to receive power from various belt pulleys, sprockets, universal joints etc., to provide power for generator and HST, as the power source of generator and HST on agricultural equipment, to provide various power requirements for the whole machine.

[0003] At present, the mainstream speed-increasing gear box in the market generally has the problems of loose connection between speed-increasing gear box and input device, large volume, heavy weight, large gear noise and other market failures. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems of the prior art, and provides a speed-increasing gear box for agricultural equipment and agricultural equipment.

[0005] The technical solution for solving the above technical problems is as follows: a speed-increasing gear box for agricultural equipment, comprising: an input shaft, a right housing, a first oil seal, an input gear, a breather, a left housing, a second oil seal, and an output gear shaft, the right housing is connected with the left housing, one end of the input shaft is provided with an external spline, the input shaft and the output gear shaft are both rotatably installed in the right housing and the left housing, the first oil seal and the input gear are both sleeved on the input shaft, the first oil seal is installed in the right housing, the breather is installed on the top of the left housing, the second oil seal is sleeved on the output gear shaft, and the second oil seal is installed in the left housing.

[0006] The beneficial effects of the technical solution of the utility model are as follows: by designing a new layout and structure, optimization design is realized under the condition that the existing transmission route and transmission mode remain unchanged, the speed-increasing gear box and the input device are firmly connected, the output shaft and the whole machine are more stable in cooperation, the overall noise of the speed-increasing gear box is reduced, and the existing market problems and maintenance costs of the speed-increasing gear box are effectively reduced. The input shaft cooperates with the first oil seal installed in the right housing to seal the lubricating oil inside the speed-increasing gear box.

[0007] Further, the bottom of the right housing is provided with a drain hole, one side of the right housing is provided with an oil filling hole, a drain plug is installed in the drain hole, and an oil filling plug is installed in the oil filling hole.

[0008] The beneficial effect of the further technical scheme is that the speed-increasing gear box used in agricultural equipment is optimized in design, and the oil hole is added to the side of the speed-increasing gear box and the oil drain hole is arranged at the bottom, which is beneficial to the maintenance of the internal gear, and improves the quality and service life of the product.

[0009] Further, one end of the input shaft is exposed outside the right shell, and the one end of the input shaft is connected with the belt pulley, the chain wheel or the universal joint through the external spline, and the belt pulley, the chain wheel and the universal joint are all provided with the internal spline matched with the external spline.

[0010] The beneficial effect of the further technical scheme is that the external spline of the input shaft of the speed-increasing gear box is connected with the internal spline of the belt pulley, the chain wheel or the universal joint, small-gap large-diameter centering cooperation is adopted, which can effectively prevent the noise and falling caused by vibration during power transmission of the belt pulley, the chain wheel or the universal joint. At the same time, the large-diameter centering cooperation is adopted, the coaxiality of the input power of the speed-increasing gear box is good, the speed-increasing gear box can transmit power more preferentially, and the service life is increased.

[0011] Further, the one-side gap between the outer diameter of the input shaft and the stop of the right shell is 0.5.

[0012] The beneficial effect of the further technical scheme is that a part of the shaft is extended out of the shell after passing through the stop of the right shell after the first oil seal is matched on the input shaft, the outer diameter of the input shaft and the stop of the right shell have only one-side 0.5 gap, which can effectively seal the pollution of dust and impurities and prevent the oil leakage caused by poor cleanliness of the oil seal.

[0013] Further, the input shaft and the input gear are connected through single-key cooperation, the input gear is provided with an inner hole, and the input shaft and the inner hole of the input gear are transitionally matched.

[0014] The beneficial effect of the further technical scheme is that the input shaft and the input gear are single-key matched to transmit the input power, which can bear enough torque for transmission. The input shaft and the inner hole of the input gear are transitionally matched, the input gear is assembled on the input shaft after being heated, the positioning of the input gear is more accurate, the center is more closely aligned after cooperation, the transmission noise is smaller, the gear meshing mark is larger, the corresponding bearing moment is larger, and the gear is less likely to be toothed.

[0015] Further, the input shaft is sleeved with a first ball bearing and a third ball bearing, the output gear shaft is sleeved with a fourth ball bearing and a second ball bearing, the input gear is located between the first ball bearing and the third ball bearing, and the right shell and the left shell are each provided with a pair of bearing holes, the first ball bearing and the fourth ball bearing are respectively installed in the pair of bearing holes of the right shell, and the second ball bearing and the third ball bearing are respectively installed in the pair of bearing holes of the left shell.

[0016] The beneficial effects of the above further technical solutions are that: the first ball bearing and the third ball bearing are installed on the input shaft, and then installed on the right shell and the left shell, the bearing gap is positioned through the shell axial bearing hole depth, the requirements of the ball bearing and the ball bearing axial installation gap are ensured, and the ball bearing is not easy to move up and down and be forced out. The output gear bearing carries the output power torque, in order to increase the support strength of the output gear shaft, the fourth ball bearing and the second ball bearing are used to support on the left and right sides of the output gear shaft. In order to ensure the support strength of the output gear shaft, and because the output gear shaft and the input gear use straight teeth to transmit torque, the output gear shaft support uses the fourth ball bearing and the second ball bearing support under the condition of no axial force, and the fourth ball bearing and the second ball bearing support position the axial gap through the bearing hole of the right shell and the left shell.

[0017] Further, the output gear shaft is installed with a driven gear, the input gear is engaged with the driven gear, and the input gear and the driven gear are both gear processing gears.

[0018] The beneficial effects of the above further technical solutions are that: the input gear and the driven gear of the output gear shaft are both gear processing, the gear can reach 7-level precision, the assembly noise is lower, the coincidence degree and the slip rate of the gear are better, and the bearing torque is larger.

[0019] Further, the output gear shaft is provided with a straight-through single key groove and an inner hole, the right side of the output gear shaft is provided with a sealing plug and a retaining ring, the sealing plug is installed in the inner hole, and the retaining ring abuts against the sealing plug.

[0020] The beneficial effects of the above further technical solutions are that: in order to increase the bearing torque of the output gear shaft, the internal single key groove of the output gear shaft is straight-through, which is convenient for machining the inner hole and the single key groove. The internal single key groove of the output gear shaft is directly connected with the generator or the HST, in order to prevent internal oil leakage, the right side of the internal single key groove of the output gear shaft is plugged with the sealing plug, and in order to prevent the sealing plug from falling out, the retaining ring is used to block the sealing plug.

[0021] Further, the right shell and the left shell are both aluminum castings, the right shell and the left shell are connected through a pair of positioning pins and bolts, and medium load gear oil is arranged between the right shell and the left shell.

[0022] The beneficial effects of the above further technical solutions are that the right shell and the left shell support the torque transmission of the internal gear shaft, positioning pins are additionally arranged for the connection of the right shell and the left shell to ensure the coaxiality of the bearing holes and the parallelism of the gear transmission.

[0023] In addition, the utility model provides an agricultural equipment, including the structure schematic diagram of the application for agricultural equipment with speed increasing gear box of any one described above.

[0024] The beneficial effects of the technical scheme of the utility model are that the new layout and structure are designed to realize the optimization design under the condition that the existing transmission route and transmission mode are unchanged, the speed increasing gear box is firmly connected with the input device, the output shaft is more stably matched with the whole machine, the overall noise of the speed increasing gear box is reduced, and the existing market problems and maintenance cost of the speed increasing gear box are effectively reduced.

[0025] The advantages of the additional aspects of the utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure schematic diagram of the application for agricultural equipment with speed increasing gear box provided by the utility model embodiment.

[0027] Figure 2 The structure schematic diagram of the application for agricultural equipment with speed increasing gear box provided by the utility model embodiment.

[0028] Figure 3 The structure schematic diagram of the application for agricultural equipment with speed increasing gear box provided by the utility model embodiment.

[0029] Figure 4 The structure schematic diagram of the application for agricultural equipment with speed increasing gear box provided by the utility model embodiment.

[0030] Figure 5 The structure schematic diagram of the application for agricultural equipment with speed increasing gear box provided by the utility model embodiment.

[0031] Figure 6 The structure schematic view seventh applied to the speed increasing gear box for agricultural equipment provided by the utility model embodiment.

[0032] Figure 7 The structure schematic view eighth applied to the speed increasing gear box for agricultural equipment provided by the utility model embodiment.

[0033] Figure 8 The structure schematic view eighth applied to the speed increasing gear box for agricultural equipment provided by the utility model embodiment.

[0034] The figure mark explanation: 1, oil drain screw plug; 2, input shaft; 3, right casing; 4, first oil seal; 5, first ball bearing; 6, input gear; 7, fourth ball bearing; 8, sealing plug; 9, retaining ring; 10, breather; 11, second ball bearing; 12, left casing; 13, second oil seal; 14, output gear shaft; 15, third ball bearing; 16, oil filler screw plug; 17, positioning pin. DETAILED DESCRIPTION

[0035] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and not used to limit the scope of the utility model.

[0036] As Figures 1 to 8 The utility model embodiment provides a kind of speed increasing gear box applied to agricultural equipment, it include: input shaft 2, right casing 3, first oil seal 4, input gear 6, breather 10, left casing 12, second oil seal 13, output gear shaft 14, the right casing 3 is connected with the left casing 12, one end of the input shaft 2 is equipped with external spline, the input shaft 2 and the output gear shaft 14 are all rotationally installed in the right casing 3 and the left casing 12, the first oil seal 4, the input gear 6 are all set on the input shaft 2, the first oil seal 4 is installed in the right casing 3, the breather 10 is installed at the top of the left casing 12, the second oil seal 13 is set on the output gear shaft 14, the second oil seal 13 is installed in the left casing 12.

[0037] The beneficial effects of the technical scheme of the utility model are: by designing new layout and structure, realize the optimization design under the condition that existing transmission route, transmission mode is unchanged, make speed increasing gear box and input device connection firm, output shaft and whole machine cooperation more stable, speed increasing gear box overall noise reduction, effectively reduce the existing market problem and maintenance cost of speed increasing gear box.Input shaft and the first oil seal installed in the right casing cooperate, seal the lubricating oil in the speed increasing gear box.

[0038] The utility model discloses a new layout and structure are designed, realize the optimization design under the condition that the existing transmission route, transmission mode is changeless, make the firm connection of speed -up gear box and input device, the more stable cooperation of output shaft and complete machine, the overall noise reduction of speed -up gear box, the overall weight reduces one third, effectively reduce the existing market problem and maintenance cost of speed -up gear box, improve the competitiveness of product.

[0039] The appearance of the speed -up gear box applied to agricultural equipment is optimized, and the ordinary gear box is designed on the basis of the existing ordinary gear box, the oil hole is added to the side of the speed -up gear box, and the oil drain hole is arranged at the bottom, which is beneficial to the maintenance of the internal gear, and the quality and service life of the product are improved.

[0040] As shown in Figures 1 to 8 Further, the bottom of the right shell 3 is provided with an oil drain hole, and the side of the right shell 3 is provided with an oil hole, and the oil drain plug 1 is installed in the oil drain hole, and the oil hole is provided with an oil hole.

[0041] The beneficial effects of the above further technical scheme are that the appearance of the speed -up gear box applied to agricultural equipment is optimized, and the ordinary gear box is designed on the basis of the existing ordinary gear box, the oil hole is added to the side of the speed -up gear box, and the oil drain hole is arranged at the bottom, which is beneficial to the maintenance of the internal gear, and the quality and service life of the product are improved.

[0042] As shown in Figures 1 to 8 Further, one end of the input shaft 2 is exposed outside the right shell 3, and the one end of the input shaft 2 is connected with the belt pulley, the chain wheel or the universal joint through the external spline, and the external spline is provided with the internal spline matched with the external spline on the belt pulley, the chain wheel and the universal joint.

[0043] The beneficial effects of the above further technical scheme are that the external spline of the input shaft of the speed -up gear box is connected with the internal spline of the belt pulley, the chain wheel or the universal joint, and the small-gap large-diameter centering cooperation is adopted, which can effectively prevent the noise and falling caused by vibration during the power transmission of the belt pulley, the chain wheel or the universal joint. At the same time, the large-diameter centering cooperation is adopted, the coaxiality of the input power of the speed -up gear box is good, the speed -up gear box can transmit power more preferentially, and the service life is increased.

[0044] Further, the single-sided gap between the outer diameter of the input shaft 2 and the stop of the right shell 3 is 0.5.

[0045] The beneficial effects of the above further technical scheme are that a part of the shaft is stretched out of the shell after passing through the right shell stop after the first oil seal is matched on the input shaft, the single-sided gap between the outer diameter of the input shaft and the right shell stop is only 0.5, which can effectively seal the pollution of dust and impurities, and prevent the oil seal from leaking due to poor cleanliness.

[0046] AsFigures 1 to 8 As shown, further, the input shaft 2 is connected with the input gear 6 by single key matching, the input gear 6 is provided with an inner hole, and the input shaft 2 and the inner hole of the input gear 6 are connected by transition matching.

[0047] The beneficial effects of the above further technical solutions are: the input shaft and the input gear are single key matched to transmit the input power, and can bear enough transmission torque. The input shaft and the inner hole of the input gear are small transition matched, the input gear is assembled on the input shaft after heating, the positioning of the input gear is more accurate, the center alignment after matching is more compact, the transmission noise is smaller, the gear meshing mark is larger, the corresponding bearing torque is larger, and the gear is less likely to be toothed.

[0048] As shown in the figure, Figures 1 to 8 Further, the first ball bearing 5 and the third ball bearing 15 are sleeved on the input shaft 2, the fourth ball bearing 7 and the second ball bearing 11 are sleeved on the output gear shaft 14, the input gear 6 is located between the first ball bearing 5 and the third ball bearing 15, and a pair of bearing holes are arranged on the right shell 3 and the left shell 12. The first ball bearing 5 and the fourth ball bearing 7 are respectively installed in the pair of bearing holes of the right shell 3, and the second ball bearing 11 and the third ball bearing 15 are respectively installed in the pair of bearing holes of the left shell 12.

[0049] The beneficial effects of the above further technical solutions are: the first ball bearing and the third ball bearing are installed on the input shaft, and then installed on the right shell and the left shell. The bearing gap is positioned by the depth of the shell axial bearing hole, which ensures the requirement of the axial installation gap of the ball bearing and the ball bearing, and is not easy to move up and down and be forced out. The output gear bearing carries the output power torque, in order to increase the support strength of the output gear shaft, the fourth ball bearing and the second ball bearing are used to support on the left and right sides of the output gear shaft. In order to ensure the support strength of the output gear shaft, and because the output gear shaft and the input gear use straight tooth transmission torque, the output gear shaft support uses the fourth ball bearing and the second ball bearing support under the condition of no axial force. The fourth ball bearing and the second ball bearing support the axial gap by the bearing hole positioned by the right shell and the left shell.

[0050] As shown in the figure, Figures 1 to 8 Further, the output gear shaft 14 is provided with a driven gear, the input gear 6 is engaged with the driven gear, and the input gear 6 and the driven gear are all gear processing gears.

[0051] The beneficial effects of the above further technical solutions are: the input gear and the driven gear of the output gear shaft are all gear processing, the gear can reach 7 level precision, the assembly noise is lower, the coincidence degree and the slip rate of the gear are better, and the bearing torque is larger.

[0052] As Figures 1 to 8 Further, the output gear shaft 14 is provided with a straight-through single key groove and an inner hole, the right side of the output gear shaft 14 is provided with a sealing plug 8 and a retaining ring 9, the sealing plug 8 is installed in the inner hole, and the retaining ring 9 abuts against the sealing plug 8.

[0053] The beneficial effects of the above further technical solutions are: in order to increase the bearing torque of the output gear shaft, the internal single key groove of the output gear shaft is straight-through, facilitating the machining of the inner hole and the single key groove. The internal single key groove of the output gear shaft is directly connected with the generator or the HST, in order to prevent internal oil leakage, the right side of the internal single key groove of the output gear shaft is blocked by the sealing plug, and in order to prevent the sealing plug from falling out, the retaining ring is used to block the sealing plug.

[0054] As Figures 1 to 8 Further, the right housing 3 and the left housing 12 are aluminum material castings, the right housing 3 and the left housing 12 are connected through a pair of positioning pins 17 and bolts, and medium load gear oil is arranged between the right housing 3 and the left housing 12.

[0055] The beneficial effects of the above further technical solutions are: the right housing and the left housing support the internal gears and shafts, in order to reduce the weight, improve the cleanliness and machining precision of the parts, the right housing and the left housing are casted by using aluminum material. The right housing and the left housing support the torque transmission of the internal gear shafts, in order to ensure the coaxiality of the bearing holes of the right housing and the left housing, the right housing and the left housing are connected by bolts, and positioning pins are additionally arranged. During the connection of the right housing and the left housing, the two positioning pins are used to position the housings, so as to ensure the coaxiality of the bearing holes and the parallelism of the gear transmission.

[0056] As Figures 1 to 8 The utility model discloses an application for agricultural equipment with speed increasing gear box can be applied to new type agricultural equipment with speed increasing gear box, mainly by oil drain screw plug 1, input shaft 2, right housing 3, input gear 6, sealing plug 8, breather 10, left housing 12, output gear shaft 14, oiling screw plug 16, positioning pin 17, ball bearing and oil seal etc. component composition.

[0057] The utility model embodiment provides a novel input shaft 2 of application in agricultural equipment with speed increasing gear box (application in agricultural equipment with speed increasing gear box) is connected with whole machine belt pulley, sprocket or universal joint. The outer spline of speed increasing gear box is connected with the power input of belt pulley, sprocket or inner spline of universal joint. In particular: the input shaft 2 is connected with whole machine belt pulley, sprocket or universal joint. The outer spline (the outer spline of input shaft) of speed increasing gear box is connected with belt pulley, sprocket or inner spline of universal joint, adopts small clearance large diameter centering cooperation, can effectively prevent the noise and drop of vibration during power transmission of belt pulley, sprocket or universal joint. At the same time, the large diameter centering cooperation is adopted, the coaxiality of input power of speed increasing gear box is good, the speed increasing gear box (application in agricultural equipment with speed increasing gear box) can transmit power more preferentially, and the service life is increased.

[0058] The utility model embodiment provides a novel input shaft 2 of application in agricultural equipment with speed increasing gear box (application in agricultural equipment with speed increasing gear box) is matched with the first oil seal 4 of installation in right casing 3, seals the lubricating oil in the inside of speed increasing gear box. In particular: the first oil seal 4 is matched on the input shaft 2, and after cooperation, a part of shaft passes right casing 3 stop after stretching out the casing, and the outer diameter of input shaft 2 and right casing 3 stop have single side 0.5 gap, can effectively seal the pollution of dust impurity, prevent the oil seal from causing the oil leakage phenomenon due to poor cleanliness.

[0059] The utility model embodiment provides a novel input shaft 2 of application in agricultural equipment with speed increasing gear box (application in agricultural equipment with speed increasing gear box) is transmitted with input gear 6 through single key cooperation power, and the inner hole of input shaft 2 and input gear 6 is through small transition cooperation. In particular: the input shaft 2 and input gear 6 single key cooperation transmission input power, can bear enough transmission torque. The inner hole of input shaft 2 and input gear 6 is through small transition cooperation, and after assembling to input shaft 2 by heating input gear 6, the positioning of input gear 6 is more accurate, the center alignment after cooperation is more compact, the transmission noise is smaller, the gear engagement mark is larger, the corresponding bearing moment is also larger, and the gear is not easy to be toothed.

[0060] The utility model embodiment provides a novel input shaft 2 of application in agricultural equipment with speed increasing gear box (application in agricultural equipment with speed increasing gear box) is positioned through the first ball bearing 5 and third ball bearing 15 two ball bearings of installation first ball bearing 5 and third ball bearing 15 two ball bearings on input shaft 2. In particular: after the first ball bearing 5 and third ball bearing 15 two ball bearings are installed on input shaft 2, then install to right casing 3 and left casing 12, and the bearing clearance is positioned through the shell axial bearing hole depth, guarantees the requirement of the axial installation clearance of first ball bearing 5 and third ball bearing 15, and is not easy to move up and down and force to move out.

[0061] The utility model embodiment provides a novel input gear 6 and output gear shaft 14 for the speed increasing gear box for agricultural equipment (application to the speed increasing gear box for agricultural equipment) of application, wherein the output gear shaft 14 has a passive gear, and the input gear 6 is engaged to transmit power. In particular: the input gear 6 and the passive gear of the output gear shaft 14 are both processed by gear grinding, the gear can reach 7-level precision, the assembly noise is lower, the coincidence degree and the slip rate of the gear are better, and the bearing torque is larger.

[0062] The utility model embodiment provides a novel output gear shaft 14 for the speed increasing gear box for agricultural equipment (application to the speed increasing gear box for agricultural equipment) of application, which is a single key output. To increase the bearing torque of the output gear shaft 14, the single key groove inside the output gear shaft 14 is straight-through type, facilitating the machining of the inner hole and the single key groove. In particular: the single key groove inside the output gear shaft 14 is directly connected with the generator or HST, to prevent internal oil leakage, the right side of the single key groove inside the output gear shaft 14 is blocked by a sealing plug 8, and to prevent the sealing plug 8 from coming out, a retaining ring 9 is used to block the sealing plug 8.

[0063] The utility model embodiment provides a novel right shell 3 and left shell 12 for the speed increasing gear box for agricultural equipment (application to the speed increasing gear box for agricultural equipment) of application, which support the internal gears and shafts. To reduce weight, improve part cleanliness and machining precision, the right shell 3 and the left shell 12 are cast from aluminum material. In particular: to increase the support strength of the right shell 3 and the left shell 12, high-pressure casting is used for aluminum shell casting, the shell density is higher, the probability of internal blowhole and sand hole is reduced, the yield is higher, the casting machining efficiency is improved, the part cost is further reduced, and the strength of the right shell 3 and the left shell 12 is higher.

[0064] The utility model embodiment provides a novel output gear shaft 14 for the speed increasing gear box for agricultural equipment (application to the speed increasing gear box for agricultural equipment) of application, which bears the output power torque. To increase the support strength of the output gear shaft 14, fourth ball bearings 7 and second ball bearings 11 are used to support the left and right sides of the output gear shaft 14. In particular: to ensure the support strength of the output gear shaft 14, and because the output gear shaft 14 and the input gear 6 use straight-tooth torque transmission, the output gear shaft 14 support uses fourth ball bearings 7 and second ball bearings 11 support under the condition of no axial force, and the fourth ball bearings 7 and the second ball bearings 11 support are positioned through the bearing holes of the right shell 3 and the left shell 12.

[0065] The right shell body 3 and the left shell body 12 of the novel speed increasing gear box applied to agricultural equipment support the torque transmission of the gear shaft inside, in order to ensure the coaxiality of the bearing holes of the right shell body 3 and the left shell body 12, in addition to the bolt connection, the right shell body 3 and the left shell body 12 are additionally provided with positioning pins 17.

[0066] The right shell body 3 and the left shell body 12 of the novel speed increasing gear box applied to agricultural equipment are internally lubricated, the lubrication is performed by using medium load gear oil, the lubrication effect is better, the gear shaft can be fully lubricated, and a breather 10 is additionally arranged at the highest position of the speed increasing gear box.

[0067] The novel layout and structure are designed, the support strength of the speed increasing gear box applied to agricultural equipment is greatly improved, the lubrication performance is more excellent, the bearing torque is larger, the noise and the quality of the assembly are greatly reduced, the problems of short service life of parts, bearing sintering, oil seal damage and oil leakage caused by poor connection strength of the speed increasing gear box in the market are solved, the product performance is greatly improved, the use cost and the maintenance cost are reduced, and the competitiveness of the product is improved.

[0068] In addition, the utility model provides an agricultural equipment, including the application in any one of preceding description of the application of the speed increasing gear box for agricultural equipment.

[0069] The beneficial effects of the technical scheme of the utility model are as follows: through the design of the new layout and structure, the optimization design is realized under the condition that the existing transmission route and transmission mode are not changed, the speed increasing gear box and the input device are firmly connected, the output shaft and the whole machine are more stably matched, the overall noise of the speed increasing gear box is reduced, the existing market problems and the maintenance cost of the speed increasing gear box are effectively reduced.

[0070] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model.

Claims

1. A speed increasing gear box for use in agricultural equipment, characterized in that, It includes: The input shaft (2), the right shell (3), the first oil seal (4), the input gear (6), the respirator (10), the left shell (12), the second oil seal (13), the output gear shaft (14), the right shell (3) is connected with the left shell (12), one end of the input shaft (2) is provided with external spline, the input shaft (2) and the output gear shaft (14) are rotatably installed in the right shell (3) and the left shell (12), the first oil seal (4) and the input gear (6) are sleeved on the input shaft (2), the first oil seal (4) is installed in the right shell (3), the respirator (10) is installed on the top of the left shell (12), the second oil seal (13) is sleeved on the output gear shaft (14), and the second oil seal (13) is installed in the left shell (12).

2. A speed increasing gear box for agricultural equipment as claimed in claim 1, wherein, The bottom of the right shell (3) is provided with a drain hole, one side of the right shell (3) is provided with an oil filling hole, the drain hole is provided with a drain plug (1), and the oil filling hole is provided with an oil filling plug (16).

3. A speed increasing gear box for agricultural equipment as claimed in claim 1, wherein, One end of the input shaft (2) is exposed outside the right shell (3), one end of the input shaft (2) is connected with a belt pulley, a chain wheel or a universal joint through external spline, and the external spline is matched with internal spline on the belt pulley, the chain wheel and the universal joint.

4. A speed increasing gear box for agricultural equipment as claimed in claim 1, wherein, The single-sided gap between the outer diameter of the input shaft (2) and the stop opening of the right shell (3) is 0.

5.

5. A speed increasing gear box for agricultural equipment as claimed in claim 1, wherein, The input shaft (2) and the input gear (6) are connected by single key cooperation, the input gear (6) is provided with an inner hole, and the input shaft (2) and the inner hole of the input gear (6) are transitionally matched.

6. A speed increasing gear box for agricultural equipment as claimed in claim 1, wherein, The input shaft (2) is sleeved with a first ball bearing (5) and a third ball bearing (15), the output gear shaft (14) is sleeved with a fourth ball bearing (7) and a second ball bearing (11), the input gear (6) is located between the first ball bearing (5) and the third ball bearing (15), a pair of bearing holes are formed in the right shell (3) and the left shell (12), the first ball bearing (5) and the fourth ball bearing (7) are installed in the pair of bearing holes of the right shell (3) respectively, and the second ball bearing (11) and the third ball bearing (15) are installed in the pair of bearing holes of the left shell (12) respectively.

7. A speed increasing gear box for agricultural equipment as claimed in claim 1, wherein, The output gear shaft (14) is provided with a straight-through single key groove and an inner hole, the right side of the output gear shaft (14) is provided with a sealing plug cover (8) and a check ring (9), the sealing plug cover (8) is installed in the inner hole, and the check ring (9) abuts against the sealing plug cover (8).

8. A speed increasing gear box for agricultural equipment as claimed in claim 1, wherein, ​ 9. A speed increasing gear box for agricultural equipment as claimed in claim 1, wherein, The right shell (3) and the left shell (12) are both aluminum castings, the right shell (3) and the left shell (12) are connected through a pair of positioning pins (17) and bolts, and medium load gear oil is arranged between the right shell (3) and the left shell (12).

10. An agricultural implement, characterized by, The application relates to a speed-increasing gear box applied to agricultural equipment, comprising the device as claimed in any one of claims 1 to 9.

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