Strong-load agricultural machinery gearbox transmission mechanism

Abstract

The utility model relates to the technical field of gearboxes, in particular to a transmission mechanism of a gearbox of a strong-load agricultural machine. The four-wheel-drive transmission mechanism comprises an input shaft, a four-wheel-drive transmission shaft, an intermediate shaft and an output shaft, the input shaft is connected with the intermediate shaft through a gear, the intermediate shaft is connected with the four-wheel-drive transmission shaft through a four-wheel-drive normally-closed gear, the four-wheel-drive transmission shaft is connected with the output shaft through a bevel gear, and a strong load bearing is arranged between the four-wheel-drive normally-closed gear and the input shaft. The strong load bearing is a double-cone bearing or a maintenance-free ball bearing, and adjusting pads or limiting spacer bushes are arranged on the two sides of the strong load bearing through gaskets. The double-cone bearing or the maintenance-free ball bearing is additionally arranged to serve as a strong-load bearing to bear large load between the input shaft and the four-wheel-drive normally closed gear and huge pressure caused by high-speed rotation, and better bearing capacity and lubricating performance are achieved. A strong load bearing is changed into a double-cone bearing or a maintenance-free ball bearing from a needle bearing, and the requirements of corn machines, peanut machines and other machines with high performance requirements for a transmission mechanism are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to gearbox technical field, concretely relates to a kind of strong load agricultural machinery gearbox transmission mechanism. BACKGROUND

[0002] In existing agricultural machinery gearbox transmission mechanism, four drive constant gear is connected with input shaft by needle bearing.But with the improvement of agricultural mechanization level, especially heavy agricultural machinery such as corn machine, peanut machine, higher requirements are put forward to the carrying capacity and lubricating performance of transmission mechanism, and traditional needle bearing gradually shows the deficiency.For example, although China patent CN212985974U discloses gearbox output shaft assembly, adopts combined bearing to improve performance, including thrust bearing and deep groove ball bearing, but there are still unresolved problems.In view of this, it is particularly necessary to improve existing transmission mechanism to enhance its carrying capacity and lubricating performance. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of prior art and provide a strong load agricultural machinery gearbox transmission mechanism.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A kind of strong load agricultural machinery gearbox transmission mechanism, including input shaft, four drive transmission shaft, intermediate shaft and output shaft, input shaft is connected with four drive transmission shaft by four drive constant gear, four drive transmission shaft is connected with output shaft by bevel gear, wherein: four drive constant gear is provided with strong load bearing between input shaft, strong load bearing is double-tapered bearing or maintenance-free ball bearing, and adjustment pad or limit spacer sleeve is provided on the two sides of strong load bearing by washer.

[0006] The technical scheme increases the double taper bearing or the maintenance-free ball bearing as the strong load bearing, bears the large load between the input shaft and the four-wheel always combined gear and the huge pressure caused by high speed rotation, realizes better bearing capacity and lubrication performance. The input shaft, the four-wheel drive shaft, the intermediate shaft and the output shaft of the transmission mechanism realize the transmission of power through the meshing of gears, the input shaft receives power input, the four-wheel drive shaft is used as transition, and the output shaft outputs the power after speed change; the double taper bearing has the advantages of large load, strong bearing capacity, long service life and good lubrication effect, and is not easy to sinter; the oil channel is added to the shaft, the lubrication effect of the double taper bearing is further improved, and the service life is prolonged; the maintenance-free ball bearing also has the characteristics of large load, strong bearing capacity and long service life, and more importantly, it does not need external lubricating oil lubrication, reduces the maintenance cost and improves the reliability of the machine. The adjusting pad or the limiting spacer sleeve arranged through the gasket can accurately adjust the pre-tightening force and the position of the bearing, and ensure the stability of the transmission mechanism; the strong load bearing is changed from the needle bearing to the double taper bearing or the maintenance-free ball bearing, so that the performance requirements of the transmission mechanism of the corn machine, the peanut machine and the like are met.

[0007] In addition, the strong load agricultural machinery gearbox transmission mechanism according to the utility model can also have the following additional technical features:

[0008] According to one embodiment of the utility model, the input shaft, the four-wheel drive shaft, the intermediate shaft and the output shaft are all tapered roller bearings.

[0009] The technical scheme adopts the tapered roller bearing as the bearing of the input shaft, the four-wheel drive shaft, the intermediate shaft and the output shaft, so as to enhance the bearing capacity of the strong load agricultural machinery gearbox transmission mechanism.

[0010] According to one embodiment of the utility model, the double taper bearing comprises a bearing body I, an adjusting pad and a retainer I, and the adjusting pad is arranged between the bearing body I and the input shaft, so that the gap between them is within 0-5 silk.

[0011] The technical scheme increases the adjusting pad between the bearing body I of the double taper bearing and the input shaft, controls the gap within 0-5 silk, and improves the precision of the double taper bearing.

[0012] According to one embodiment of the utility model, a cavity is arranged in the input shaft where the double taper bearing is located, an oil channel is arranged in the cavity, and the oil channel extends from one end of the input shaft to the double taper bearing.

[0013] The technical scheme directly delivers the lubricating oil to the double taper bearing by arranging the cavity and the oil channel in the input shaft, so as to enhance the lubrication effect of the double taper bearing.

[0014] According to one embodiment of the utility model, the maintenance -free ball bearing includes bearing body II, spacing sleeve, baffle II and baffle III, baffle II is arranged between spacing sleeve and input shaft, baffle III is arranged between spacing sleeve and four drive always gear.

[0015] The utility model discloses a bearing body II, spacing sleeve, baffle II and baffle III of maintenance -free ball bearing are arranged to improve the carrying capacity of maintenance -free ball bearing, and maintenance cost is reduced simultaneously.

[0016] According to one embodiment of the utility model, the model of baffle I and baffle II is JB / ZQ4342-45 elastic baffle, and the model of baffle III is GB / T893-2017-100 elastic baffle for hole.

[0017] The utility model discloses a specific model elastic baffle is selected, for example, baffle I and baffle II are JB / ZQ4342-45, and baffle III is GB / T893-2017-100, which is used for ensuring the reliability of the baffle in the strong load agricultural machinery gearbox transmission mechanism.

[0018] According to one embodiment of the utility model, the strong load bearing is installed in the inside of four drive always gear.

[0019] According to one embodiment of the utility model, the intermediate shaft is connected with the drive shaft through the driving clutch.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model increases double taper bearing or maintenance -free ball bearing as strong load bearing, bears the great load between input shaft and four drive always gear and the huge pressure brought by high -speed rotation, realizes better carrying capacity and lubrication performance. DRAWINGS

[0022] Figure 1 It is one of structure schematic drawings of the utility model.

[0023] Figure 2 It is the second structure schematic drawing of the utility model.

[0024] In the drawing: 1, input shaft;2, double taper bearing;21, bearing body I;22, adjusting pad;23, oil channel;24, baffle I;3, four drive always gear;4, four drive transmission shaft;5, bevel gear;6, output shaft;7, maintenance -free ball bearing;71, bearing body II;72, spacing sleeve;73, baffle II;74, baffle III;8, intermediate shaft;9, front drive shaft. DETAILED DESCRIPTION

[0025] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present application.

[0026] As shown in Figure 1 and Figure 2 The embodiment provides a strong-load agricultural machine gearbox transmission mechanism, which comprises an input shaft 1, a four-wheel drive transmission shaft 4, an intermediate shaft and an output shaft 6, the input shaft 1 is connected with the four-wheel drive transmission shaft 4 through a four-wheel drive always-engaged gear 3, the four-wheel drive transmission shaft 4 is connected with the output shaft 6 through a bevel gear 5, and a strong-load bearing is arranged between the four-wheel drive always-engaged gear 3 and the input shaft 1, the strong-load bearing is a double-tapered bearing 2 or a maintenance-free ball bearing 7, and adjusting pads 22 or limiting spacer sleeves 72 are arranged on the two sides of the strong-load bearing through gaskets.

[0027] The technical scheme increases the double-tapered bearing 2 or the maintenance-free ball bearing 7 as the strong-load bearing, bears the great load between the input shaft 1 and the four-wheel drive always-engaged gear 3 and the great pressure caused by high-speed rotation, and realizes better bearing capacity and lubrication performance. The input shaft 1, the four-wheel drive transmission shaft 4, the intermediate shaft and the output shaft 6 of the transmission mechanism realize power transmission through meshing of gears, the input shaft 1 receives power input, the four-wheel drive transmission shaft 4 serves as a transition, and the output shaft 6 outputs power after speed change; the double-tapered bearing 2 has the advantages of large load, strong bearing capacity, long service life and good lubrication effect and is not prone to sintering; an oil channel 23 is arranged on the shaft, the lubrication effect of the double-tapered bearing 2 is further improved, and the service life is prolonged; the maintenance-free ball bearing 7 also has the characteristics of large load, strong bearing capacity and long service life, and more importantly, it does not need external lubricating oil lubrication, thereby reducing maintenance cost and improving mechanical reliability. The adjusting pads 22 or the limiting spacer sleeves 72 arranged through the gaskets can accurately adjust the pre-tightening force and the position of the bearing, and ensure the stability of the transmission mechanism; the four-wheel drive always-engaged gear 3 is changed from a needle bearing to the double-tapered bearing 2 or the maintenance-free ball bearing 7, and the performance requirements of the transmission mechanism of the corn machine, the peanut machine and other models are high.

[0028] The input shaft 1, the four-wheel drive transmission shaft 4, the intermediate shaft and the output shaft 6 are all tapered roller bearings.

[0029] Embodiment 1

[0030] As shown in Figure 1 The strong-load bearing is the double-tapered bearing 2.

[0031] The double taper bearing 2 comprises a bearing body I 21, an adjusting pad 22 and a retainer I 24, and the adjusting pad 22 is arranged between the bearing body I 21 and the input shaft 1 to control the gap between the bearing body I 21 and the input shaft 1 within 0-5 wires.

[0032] The double taper bearing 2 comprises a bearing body I 21, an adjusting pad 22 and a retainer I 24, and the adjusting pad 22 is arranged between the bearing body I 21 and the input shaft 1 to control the gap between the bearing body I 21 and the input shaft 1 within 0-5 wires.

[0033] According to an embodiment of the utility model, the input shaft 1 in which the double taper bearing 2 is arranged is provided with a cavity, and an oil channel 23 is arranged in the cavity and extends from one end of the input shaft 1 to the double taper bearing 2.

[0034] The utility model discloses a cavity and an oil channel 23 are arranged in the input shaft 1 to directly deliver lubricating oil to the double taper bearing 2, thereby enhancing the lubricating effect of the double taper bearing 2.

[0035] The use process of the above embodiment is as follows: power is received by the input shaft 1 and transmitted to the four-wheel drive transmission shaft 4 through the four-wheel drive constant mesh gear 3, and the four-wheel drive transmission shaft 4 transmits power to the output shaft 6 through the bevel gear 5, thereby realizing speed change transmission of power; the double taper bearing 2 is arranged between the input shaft 1 and the four-wheel drive constant mesh gear 3 as a heavy load bearing to bear the pressure of heavy load and high-speed rotation; the double taper bearing 2 has excellent load-carrying capacity and lubricating performance, and the gap between the double taper bearing 2 and the input shaft 1 is accurately controlled through the adjusting pad 22, thereby improving the precision. In addition, the input shaft 1 is provided with a cavity and an oil channel 23, and lubricating oil is directly delivered to the double taper bearing 2, thereby further enhancing the lubricating effect and prolonging the service life. The input shaft 1, the four-wheel drive transmission shaft 4, the intermediate shaft and the output shaft 6 of the whole transmission mechanism all adopt tapered roller bearings, thereby ensuring the stability and reliability of transmission. The transmission mechanism meets the transmission requirements of high-performance models such as corn machines and peanut machines, reduces the maintenance cost and improves the overall performance of the machine.

[0036] Embodiment 2

[0037] As shown in the figure, the heavy load bearing is a maintenance-free ball bearing 7. Figure 2

[0038] The maintenance-free ball bearing 7 comprises a bearing body II 71, a limiting spacer sleeve 72, a retainer II 73 and a retainer III 74, the retainer II 73 is arranged between the limiting spacer sleeve 72 and the input shaft 1, and the retainer III 74 is arranged between the limiting spacer sleeve 72 and the four-wheel drive constant mesh gear 3.

[0039] The utility model discloses a bearing body II 71, a limiting spacer sleeve 72, a retainer II 73 and a retainer III 74 of the maintenance-free ball bearing 7 are arranged to improve the load-carrying capacity of the maintenance-free ball bearing 7 and reduce the maintenance cost.

[0040] ​According to one embodiment of the utility model, the model of the check ring I 24 and the check ring II 73 is JB / ZQ4342-45 elastic check ring, and the model of the check ring III 74 is GB / T893-2017-100 elastic check ring for 100 hole.

[0041] The technical scheme selects specific models of elastic check rings, for example, the check ring I 24 and the check ring II 73 are JB / ZQ4342-45, and the check ring III 74 is GB / T893-2017-100, to ensure the reliability of the check ring in the strong load agricultural machinery gearbox transmission mechanism.

[0042] According to one embodiment of the utility model, the strong load bearing is installed inside the four-wheel always-engaged gear 3.

[0043] According to one embodiment of the utility model, the intermediate shaft 8 is connected with the driving shaft through a driving clutch.

[0044] The use process of the above embodiment is as follows: the power is input from the input shaft 1, the power is transmitted to the intermediate shaft 8 through the gear, the power is transmitted to the four-wheel driving shaft 4 through the four-wheel always-engaged gear 3 by the intermediate shaft 8 through the gear shifting mechanism, and then the power is transmitted to the output shaft 6 through the bevel gear 5, so that the speed change transmission of the power is completed; in addition, the power is transmitted to the driving wheel through the driving shaft by the intermediate shaft 8 through the driving clutch; wherein the maintenance-free ball bearing 7 is arranged between the four-wheel always-engaged gear 3 and the input shaft 1, bears the pressure of large load and high speed rotation, has excellent load capacity and does not need external lubrication, reduces the maintenance cost, and improves the mechanical reliability; the maintenance-free ball bearing 7 is composed of a bearing body, a limiting spacer sleeve 72 and a check ring, the bearing position and the pre-tightening force are accurately controlled through the cooperation of the limiting spacer sleeve 72 and the check ring, and the transmission stability is enhanced. This transmission mechanism meets the transmission requirements of high-performance machine models such as corn machines and peanut machines, reduces the maintenance cost, and improves the overall performance of the machine.

Claims

1. A heavy-duty farm machine transmission gear mechanism, characterized by, The application relates to a four-wheel drive axle bearing, which comprises an input shaft (1), a four-wheel drive axle (4), an intermediate shaft (8) and an output shaft (6), the input shaft (1) is connected with the intermediate shaft (8) through a gear, the intermediate shaft (8) is connected with the four-wheel drive axle (4) through a four-wheel drive constant gear (3), the four-wheel drive axle (4) is connected with the output shaft (6) through a bevel gear (5), wherein: a heavy load bearing is arranged between the four-wheel drive constant gear (3) and the input shaft (1), the heavy load bearing is a double taper bearing (2) or a maintenance-free ball bearing (7), and adjusting pads (22) or limiting spacer sleeves (72) are arranged on the two sides of the heavy load bearing through washers.

2. The heavy duty farm transmission gear mechanism as set forth in claim 1, wherein, The input shaft (1), the four-wheel drive axle (4), the intermediate shaft (8) and the output shaft (6) are all conical roller bearings.

3. The heavy duty farm transmission gear mechanism as set forth in claim 1, wherein, The double taper bearing (2) comprises a bearing body I (21), adjusting pads (22) and a retainer I (24), the adjusting pads (22) are arranged between the bearing body I (21) and the input shaft (1), and the gap between the adjusting pads (22) and the input shaft (1) is within 0-5 wires.

4. The heavy duty farm transmission gear mechanism of claim 3, wherein, The input shaft (1) where the double taper bearing (2) is arranged is provided with a cavity, an oil channel (23) is arranged in the cavity, and the oil channel (23) extends from one end of the input shaft (1) to the double taper bearing (2).

5. The heavy duty farm transmission gear mechanism of claim 4, wherein, The maintenance-free ball bearing (7) comprises a bearing body II (71), a limiting spacer sleeve (72), a retainer II (73) and a retainer III (74), the retainer II (73) is arranged between the limiting spacer sleeve (72) and the input shaft (1), and the retainer III (74) is arranged between the limiting spacer sleeve (72) and the four-wheel drive constant gear (3).

6. The heavy duty farm transmission gear mechanism of claim 5, wherein, The retainer I (24) and the retainer II (73) are JB / ZQ4342-45 elastic retainers, and the retainer III (74) is a GB / T893-2017-100 hole elastic retainer.

7. The heavy duty farm transmission gear mechanism of claim 1, wherein, The heavy load bearing is arranged in the four-wheel drive constant gear (3).

8. The heavy duty farm transmission gear mechanism of claim 1, wherein, The intermediate shaft (8) is connected with a driving shaft through a driving clutch.

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