Bevel gear power take-off transmission mechanism, transmission system and tractor

Abstract

The utility model relates to a bevel gear power take-off transmission mechanism, a transmission system and a tractor, and relates to the field of transmission devices.A power take-off driving bevel gear and a power take-off driven bevel gear of the bevel gear power take-off transmission mechanism are both bevel gears and are in meshed transmission, and the power take-off driving bevel gear is provided with a power take-off transmission hole; the power take-off driving bevel gear is in transmission connection with one end of an oil pump input gear shaft, the other end of the oil pump input gear shaft is in transmission connection with an oil pump output gear shaft, the oil pump input gear shaft and the oil pump output gear shaft are both rotationally connected with the oil pump power take-off base, and the other end of the oil pump input gear shaft is provided with a second pump connecting hole. The oil pump output gear shaft has a first pump connection hole. The power takeoff driving bevel gear is adopted to obtain power, so that the meshing surface of the gear is a conical surface, the meshing area of the gear is increased, the jumping of the gear is reduced, the transmission is very stable, the power is transmitted more effectively, the energy loss is reduced, and the transmission efficiency, stability and reliability of a transmission system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a transmission device field, concretely relates to a bevel gear power take-off transmission mechanism, transmission system and tractor. BACKGROUND

[0002] In the tractor, the oil pump is driven by an independent motor or obtains power from the gearbox through the power take-off transmission mechanism to drive the oil pump to rotate. The existing power take-off transmission mechanism usually only adopts spur gear transmission, the spur gear engagement area is small, easy to wear, unstable transmission, and the transmission efficiency is greatly discounted. SUMMARY

[0003] The utility model wants to solve the technical problem of how to improve the power take-off transmission efficiency.

[0004] The utility model discloses a kind of bevel gear power take-off transmission mechanism, including power take-off driving bevel gear, power take-off passive bevel gear, oil pump input gear shaft, oil pump output gear shaft and oil pump power take-off seat, the power take-off driving bevel gear and the power take-off passive bevel gear are all bevel gears, and the power take-off driving bevel gear and the power take-off passive bevel gear mesh transmission, the power take-off driving bevel gear has power take-off transmission hole, the power take-off driving bevel gear is transmission connection with one end of the oil pump input gear shaft, the other end of the oil pump input gear shaft is transmission connection with the oil pump output gear shaft, the oil pump input gear shaft and the oil pump output gear shaft are all rotationally connected with the oil pump power take-off seat, the other end of the oil pump input gear shaft has second pump connecting hole, the oil pump output gear shaft has first pump connecting hole.

[0005] The utility model has the advantages that: power take-off driving bevel gear is transmission connection with gearbox through power take-off transmission hole, obtains power. Power is transmitted to oil pump output gear shaft by oil pump input gear shaft. Oil pump power take-off seat provides support for oil pump input gear shaft and oil pump output gear shaft. First pump connecting hole and second pump connecting hole are used to connect with oil pump, to drive oil pump to operate. Power take-off driving bevel gear is used to obtain power, so that the meshing surface of gear is conical surface, the meshing area of gear is increased, the runout of gear is reduced, transmission is very stable, power is more effectively transmitted, energy loss is reduced, and the transmission efficiency and stability and reliability of transmission system are improved.

[0006] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0007] Further, one end of the power take-off passive bevel gear is connected with a bevel gear shaft, and the bevel gear shaft is spline-connected with one end of the oil pump input gear shaft.

[0008] The beneficial effect of the further scheme is that the power taking bevel gear is connected with the oil pump input gear shaft through the spline transmission, and the two shaft structures of the bevel gear shaft and the oil pump input gear shaft are adopted, compared with the long shaft, the length of the single shaft is shortened, the structural strength of the shaft is increased, and the assembly is facilitated.

[0009] Further, the bevel gear power taking transmission mechanism further comprises a support seat, the support seat is fixedly arranged, and the bevel gear shaft is rotationally connected with the support seat.

[0010] The beneficial effect of the further scheme is that the support seat provides support for the bevel gear shaft, avoids the formation of a cantilever structure of the bevel gear shaft, and increases the bending resistance of the shaft.

[0011] Further, the middle part of the support seat is hollow, and the bevel gear shaft is arranged in the support seat.

[0012] The beneficial effect of the further scheme is that the middle part of the support seat is hollow, which reduces the weight of the support seat and realizes lightweight design.

[0013] Further, the bevel gear power taking transmission mechanism further comprises an oil pump driving gear, the oil pump driving gear is fixedly arranged outside the other end of the oil pump input gear shaft, and the oil pump driving gear is in transmission connection with the oil pump output gear shaft.

[0014] Further, the bevel gear power taking transmission mechanism further comprises an oil pump intermediate gear shaft, the oil pump intermediate gear shaft is arranged between the oil pump driving gear and the oil pump output gear shaft, and the oil pump driving gear, the oil pump intermediate gear shaft and the oil pump output gear shaft are in transmission connection in sequence.

[0015] The utility model also provides a transmission system which comprises the bevel gear power taking transmission mechanism.

[0016] Further, the transmission system further comprises a second oil pump, a first oil pump and an input shaft, the second oil pump is in transmission connection with the second pump connecting hole, the first oil pump is in transmission connection with the first pump connecting hole, and the input shaft is in transmission connection with the power taking transmission hole.

[0017] The beneficial effect of the further scheme is that the power taking driving bevel gear is in transmission connection with the input shaft of the gearbox through the power taking transmission hole to obtain power. The first pump connecting hole and the second pump connecting hole are connected with the first oil pump and the second oil pump respectively, so as to drive the oil pump to operate, and the oil pump can be used for auxiliary steering, lubrication and other functions of the tractor.

[0018] Further, the first oil pump is a lubricating pump.

[0019] The beneficial effect of the further scheme is that the lubricating pump is used for pumping lubricating oil to realize lubrication of parts in the transmission system.

[0020] The utility model also provides a tractor which comprises the bevel gear power take-off transmission mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a sectional view of the bevel gear power take-off transmission mechanism of the utility model;

[0022] Figure 2 It is a schematic diagram of the transmission system, wherein the first oil pump, the second oil pump, the input shaft and other mounting structures are indicated by double-dot chain lines;

[0023] Figure 3 It is Figure 2 A-A sectional view of the transmission system.

[0024] In the drawings, the components represented by each reference numeral are listed as follows:

[0025] 1, power take-off driving bevel gear; 2, power take-off driven bevel gear; 3, support seat; 4, oil pump input gear shaft; 5, oil pump driving gear; 6, oil pump intermediate gear shaft; 7, oil pump output gear shaft; 8, oil pump power take-off seat; 9, second oil pump; 10, first oil pump; 11, input shaft. DETAILED DESCRIPTION

[0026] The principles and features of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.

[0027] Example One

[0028] As Figures 1-3 shown, the present embodiment provides a bevel gear power take-off transmission mechanism, which comprises a power take-off driving bevel gear 1, a power take-off driven bevel gear 2, an oil pump input gear shaft 4, an oil pump output gear shaft 7 and an oil pump power take-off seat 8. The power take-off driving bevel gear 1 and the power take-off driven bevel gear 2 are both bevel gears, and the power take-off driving bevel gear 1 and the power take-off driven bevel gear 2 are in meshing transmission. The power take-off driving bevel gear 1 has a power take-off transmission hole. The power take-off driving bevel gear 1 is in transmission connection with one end of the oil pump input gear shaft 4. The other end of the oil pump input gear shaft 4 is in transmission connection with the oil pump output gear shaft 7. The oil pump input gear shaft 4 and the oil pump output gear shaft 7 are both in rotational connection with the oil pump power take-off seat 8. The other end of the oil pump input gear shaft 4 has a second pump connection hole. The oil pump output gear shaft 7 has a first pump connection hole.

[0029] The power taking driving bevel gear 1 is connected with the gearbox through the power taking transmission hole to obtain power. The power is transmitted to the oil pump output gear shaft 7 through the oil pump input gear shaft 4. The oil pump power taking seat 8 supports the oil pump input gear shaft 4 and the oil pump output gear shaft 7. The first pump connecting hole and the second pump connecting hole are used to connect with the oil pump to drive the oil pump to operate. The power taking driving bevel gear 1 is used to obtain power, so that the meshing surface of the gear is a conical surface, the meshing area of the gear is increased, the gear runout is reduced, the transmission is very stable, the power is transmitted more effectively, the energy loss is reduced, and the transmission efficiency and stability and reliability of the transmission system are improved.

[0030] It should be noted that the oil pump power taking seat 8 is two half shells that are buckled and connected up and down, Figure 1 The oil pump power taking seat 8 hides the upper half; or the oil pump power taking seat 8 is connected with other shell side walls in the tractor during use, and a region for installing the oil pump input gear shaft 4 and the oil pump output gear shaft 7 is formed between the two.

[0031] Specifically, the first pump connecting hole and the second pump connecting hole are spline holes.

[0032] On the basis of the above technical scheme, one end of the power taking driven bevel gear 2 is connected with a bevel gear shaft, and the bevel gear shaft is spline-connected with one end of the oil pump input gear shaft 4.

[0033] The power taking driven bevel gear 2 is connected with the oil pump input gear shaft 4 through spline transmission. The two shaft structures of the bevel gear shaft and the oil pump input gear shaft 4 shorten the length of a single shaft compared with a long shaft, increase the structural strength of the shaft, and facilitate assembly.

[0034] Specifically, as shown in Figure 3 The middle part of the oil pump input gear shaft 4 has a cylindrical through hole, one end has a spline hole for connecting with the power taking driven bevel gear 2, and the other end has a second pump connecting hole.

[0035] On the basis of the above technical scheme, the bevel gear power taking transmission mechanism further comprises a support seat 3, the support seat 3 is fixedly arranged, and the bevel gear shaft is rotatably connected with the support seat 3.

[0036] The support seat 3 supports the bevel gear shaft to avoid forming a cantilever structure and increase the bending resistance of the shaft.

[0037] As shown in Figure 2 The support seat 3 can be fixedly connected with the frame in the tractor or the shell of other equipment.

[0038] On the basis of the above technical scheme, the middle part of the support seat 3 is hollow, and the bevel gear shaft is arranged in the support seat 3.

[0039] The middle part of the support base 3 is hollow, thereby reducing the weight of the support base 3 and achieving lightweight design.

[0040] On the basis of the above technical scheme, the bevel gear power take-off transmission mechanism further comprises an oil pump driving gear 5 fixedly sleeved outside the other end of the oil pump input gear shaft 4, and the oil pump driving gear 5 is in transmission connection with the oil pump output gear shaft 7.

[0041] On the basis of the above technical scheme, the bevel gear power take-off transmission mechanism further comprises an oil pump intermediate gear shaft 6 arranged between the oil pump driving gear 5 and the oil pump output gear shaft 7, and the oil pump driving gear 5, the oil pump intermediate gear shaft 6 and the oil pump output gear shaft 7 are in transmission connection in sequence.

[0042] Specifically, the oil pump input gear shaft 4, the oil pump intermediate gear shaft 6 and the oil pump output gear shaft 7 are all in rotational connection with the oil pump power take-off base 8 through bearings.

[0043] Embodiment two

[0044] The embodiment also provides a transmission system comprising the bevel gear power take-off transmission mechanism of embodiment one.

[0045] On the basis of the above technical scheme, the transmission system further comprises a second oil pump 9, a first oil pump 10 and an input shaft 11, the second oil pump 9 is in transmission connection with the second pump connecting hole, the first oil pump 10 is in transmission connection with the first pump connecting hole, and the input shaft 11 is in transmission connection with the power take-off transmission hole.

[0046] The power take-off driving bevel gear 1 is in transmission connection with the input shaft 11 of the gearbox through the power take-off transmission hole to obtain power. The first pump connecting hole and the second pump connecting hole are connected with the first oil pump 10 and the second oil pump 9 respectively, so as to drive the oil pump to operate.

[0047] On the basis of the above technical scheme, the first oil pump 10 is a lubricating pump.

[0048] The lubricating pump is used for pumping lubricating oil to realize lubrication of parts in the transmission system.

[0049] Embodiment three

[0050] The embodiment also provides a tractor comprising the bevel gear power take-off transmission mechanism of embodiment one.

[0051] In the description of the utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature.

[0052] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0053] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A bevel gear power take-off transmission mechanism characterised in that, The power take-off mechanism comprises a power take-off driving bevel gear (1), a power take-off driven bevel gear (2), an oil pump input gear shaft (4), an oil pump output gear shaft (7) and an oil pump power take-off base (8), the power take-off driving bevel gear (1) and the power take-off driven bevel gear (2) are bevel gears, and the power take-off driving bevel gear (1) and the power take-off driven bevel gear (2) are in meshing transmission, the power take-off driving bevel gear (1) has a power take-off transmission hole, the power take-off driving bevel gear (1) is in transmission connection with one end of the oil pump input gear shaft (4), the other end of the oil pump input gear shaft (4) is in transmission connection with the oil pump output gear shaft (7), the oil pump input gear shaft (4) and the oil pump output gear shaft (7) are in rotary connection with the oil pump power take-off base (8), the other end of the oil pump input gear shaft (4) has a second pump connecting hole, and the oil pump output gear shaft (7) has a first pump connecting hole.

2. A bevel gear power take-off transmission mechanism according to claim 1, characterised in that, One end of the power take-off driven bevel gear (2) is connected with a bevel gear shaft, and the bevel gear shaft is in spline connection with one end of the oil pump input gear shaft (4).

3. A bevel gear power take-off transmission mechanism according to claim 2, characterised in that, The power take-off mechanism further comprises a support base (3), the support base (3) is fixedly arranged, and the bevel gear shaft is in rotary connection with the support base (3).

4. A bevel gear power take-off transmission mechanism according to claim 3, characterised in that, The middle part of the support base (3) is hollow, and the bevel gear shaft penetrates through the support base (3).

5. A bevel gear power take-off transmission mechanism according to any one of claims 1 to 4, characterised in that, The power take-off mechanism further comprises an oil pump driving gear (5), the oil pump driving gear (5) is fixedly sleeved outside the other end of the oil pump input gear shaft (4), and the oil pump driving gear (5) is in transmission connection with the oil pump output gear shaft (7).

6. A bevel gear power take-off transmission mechanism according to claim 5, wherein The power take-off mechanism further comprises an oil pump intermediate gear shaft (6), the oil pump intermediate gear shaft (6) is arranged between the oil pump driving gear (5) and the oil pump output gear shaft (7), and the oil pump driving gear (5), the oil pump intermediate gear shaft (6) and the oil pump output gear shaft (7) are in meshing transmission in sequence.

7. A transmission system characterised in that, The power take-off mechanism comprises the bevel gear power take-off transmission mechanism according to any one of claims 1-6.

8. A transmission system according to claim 7, characterised in that, The power take-off mechanism further comprises a second oil pump (9), a first oil pump (10) and an input shaft (11), the second oil pump (9) is in transmission connection with the second pump connecting hole, the first oil pump (10) is in transmission connection with the first pump connecting hole, and the input shaft (11) is in transmission connection with the power take-off transmission hole.

9. A transmission system according to claim 8, wherein, The first oil pump (10) is a lubricating pump.

10. A tractor characterised in that, The power take-off mechanism comprises the bevel gear power take-off transmission mechanism according to any one of claims 1-6.

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