CN217401658U - Wheel edge speed reducer ventilation structure, wheel edge speed reducer system and engineering machinery - Google Patents
Wheel edge speed reducer ventilation structure, wheel edge speed reducer system and engineering machinery Download PDFInfo
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- CN217401658U CN217401658U CN202221468758.4U CN202221468758U CN217401658U CN 217401658 U CN217401658 U CN 217401658U CN 202221468758 U CN202221468758 U CN 202221468758U CN 217401658 U CN217401658 U CN 217401658U
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Abstract
The utility model discloses a wheel edge speed reducer ventilation structure, a wheel edge speed reducer system and engineering machinery, which comprise a first conduction part, a second conduction part and a ventilation part; the first conduction component is positioned in the rack, an input port of the first conduction component is communicated with an inner cavity of the speed reducer, and an output port of the first conduction component is communicated with a through hole formed in the inner wall of the rack; the second conducting component is positioned in the axle housing, an input port of the second conducting component is communicated with the through hole, and an output port of the second conducting component is led to the outer wall of the axle housing from the inner cavity of the axle housing and is fixed; the gas permeable component is arranged at the output port of the second conduction component, and gas generated by the inner cavity of the speed reducer is discharged from the gas permeable component after passing through the first conduction component and the second conduction component. The problem of outside whole rotatory reduction gear can't fix ventilative part is solved, guarantee simultaneously that ventilative part mounted position's security, maintainability, balanced inside and outside atmospheric pressure of reduction gear, greatly reduced the oil leak risk of wheel limit speed reducer sealing member.
Description
Technical Field
The utility model belongs to wheel limit speed reducer field, concretely relates to ventilative structure of wheel limit speed reducer.
Background
The mining dump truck is a large-scale mine transportation device, and has high working efficiency and long operation time. The wheel side speed reducer is the tail end of the power transmission system of the dump truck and plays a role in reducing speed and increasing torque. Because the gear meshing of the inner cavity of the speed reducer and the rotation of the bearing can generate higher heat, the air pressure of the inner cavity of the speed reducer is far higher than the external air pressure, and the oil leakage of the sealing element is easily caused by the pressure difference. Therefore, the inside of the speed reducer needs to be communicated with the outside atmosphere by a ventilating structure so as to balance the internal and external air pressure and greatly reduce the hidden danger of oil leakage of the sealing piece.
At present, large-tonnage electric drive mining dump trucks on the market all adopt a hub driving mode, and a speed reducer needs to transmit the rotating speed and the torque to a hub. Therefore, the external parts of the speed reducer connected with the hub are rotating parts, and a proper mounting position for the ventilation plug of the speed reducer is difficult to find.
SUMMERY OF THE UTILITY MODEL
According to the not enough of prior art, the utility model provides a ventilative structure of wheel limit speed reducer has solved the problem that this type of wheel limit planet structure speed reducer ventilative stopper arranged the difficulty.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides a wheel side speed reducer ventilation structure in a first aspect, which comprises a first conduction part, a second conduction part and a ventilation part; the first conduction component is positioned in the rack, an input port of the first conduction component is communicated with an inner cavity of the speed reducer, and an output port of the first conduction component is communicated with a through hole formed in the inner wall of the rack; the second conducting component is positioned in the axle housing, an input port of the second conducting component is communicated with the through hole, and an output port of the second conducting component is led to the outer wall of the axle housing from the inner cavity of the axle housing and is fixed; the output port department that the part was led to the second is installed to the ventilation unit, and the gas that the speed reducer inner chamber produced leads to the part through first, second after from ventilation unit discharge.
In some embodiments, the first conducting member is laid along an inner wall of the rack.
In some embodiments, the first conducting part is a hard pipe and is laid along the inner wall of the rack through multiple bending.
In some embodiments, the second conducting part is a hose, and the through hole on the inner wall of the rack is communicated with the ventilating part through one bending.
In some embodiments, the input port of the first conduction component is provided with a through joint, and the through joint is arranged on the arc-shaped side wall of the sealing cylinder, so that the first conduction component is communicated with the inner cavity of the speed reducer.
In some embodiments, an O-ring for sealing lubricating oil in the inner cavity of the speed reducer is arranged between an axial surface of the sealing cylinder and the motor.
In some embodiments, the through hole on the inner wall of the frame is formed by two threaded holes which are vertically communicated.
In some embodiments, the output port of the first conducting part is provided with a right-angle connector which is arranged in a threaded hole in a vertical direction; and the input port of the second conduction component is provided with a through joint which is arranged in a threaded hole in the horizontal direction.
In some embodiments, the output port of the second conducting member is fitted with a through-fitting that is fitted in a threaded bore in the outer wall of the axle housing.
In some embodiments, the air-permeable component is a water-proof and oil-proof air-permeable plug which is arranged in a threaded hole in the outer wall of the axle housing.
The utility model discloses the wheel limit speed reducer system is provided in the second aspect, including speed reducer, wheel hub, tire, wheel hub installs on the speed reducer, the tire is installed on wheel hub install foretell wheel limit speed reducer ventilation structure in the frame of speed reducer.
The third aspect of the utility model provides an engineering machine, which is provided with the wheel edge speed reducer ventilating structure; alternatively, the wheel hub reduction gear system is mounted.
The utility model discloses beneficial effect:
the utility model discloses a technical scheme has solved the unable fixed air permeable component's of outside whole rotatory reduction gear problem, guarantees air permeable component mounted position's security, maintainability simultaneously, has balanced inside and outside atmospheric pressure of reduction gear, greatly reduced the oil leak risk of wheel limit speed reducer sealing member.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
fig. 1 is an application schematic diagram of the ventilation structure of the wheel hub reduction gear of the present invention;
FIG. 2 is a sectional view of the wheel side speed reducer of the present invention;
fig. 3 is a partially enlarged view of fig. 2.
The attached drawings are as follows: 1-a planet carrier; 2-a torsion tube; 3-a hub; 4-a frame; 5-a tire; 6-sealing the cylinder; 7-a straight-through joint; 8-lubricating oil; 9-O-shaped ring; 10-a steel pipe; 11-a motor; 12-right angle joints; 13-a straight-through joint; 14-a hose; 15-axle housing; 16-gas permeable plug.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a hub 3 is connected with a torque tube 2 and a planet carrier 1, so that all parts outside the speed reducer are rotating parts, and a speed reducer vent plug is not fixed in a proper position; the frame 4 is a non-rotating member, but the outside thereof is surrounded by the tire 5, and if the speed reducer vent plug is fixed to the outside of the frame 4, the replacement and maintenance cannot be performed, and therefore, the vent plug is not fixed to an appropriate position on the outside of the frame 4.
As shown in fig. 2, the wheel hub reducer ventilation structure includes a first conduction component, a second conduction component and a ventilation component; the first conduction component is positioned in the rack 4, an input port of the first conduction component is communicated with an inner cavity of the speed reducer, and an output port of the first conduction component is communicated with a through hole formed in the inner wall of the rack 4; the second conducting component is positioned inside the axle housing 15, an input port of the second conducting component is communicated with the through hole, and an output port of the second conducting component is led to the outer wall of the axle housing 15 from the inner cavity of the axle housing 15 and is fixed; the gas permeable component is arranged at the output port of the second conduction component, and gas generated by the inner cavity of the speed reducer is discharged from the gas permeable component after passing through the first conduction component and the second conduction component. The problem of this kind of wheel limit planet structure speed reducer ventilation unit arrange the difficulty is solved, balanced the pressure difference of speed reducer inner chamber and external, greatly reduced the oil leak risk of wheel limit reduction gear sealing member.
Further scheme: the first conducting part is laid along the inner wall of the frame 4.
Further scheme: the first conductive member is a steel pipe 10, and is laid along the inner wall of the frame 4 by bending a plurality of times.
Further scheme: the second communication part adopts a hose 14, and the through hole on the inner wall of the machine frame 4 is communicated with the ventilation part through one-time bending.
Further scheme: the input port of the first conduction component is provided with a straight joint 7, and the straight joint 7 is arranged on the arc-shaped side wall of the sealing cylinder 6, so that the first conduction component is communicated with the inner cavity of the speed reducer.
Further scheme: an O-shaped ring 9 for sealing the lubricating oil 8 in the inner cavity of the speed reducer is arranged between one axial surface of the sealing cylinder 6 and the motor 11.
Further scheme: the ventilation component adopts a waterproof and oilproof ventilation plug 16, and the ventilation plug 16 is arranged in a threaded hole in the outer wall of the axle housing 15.
As shown in fig. 3, the through hole on the inner wall of the frame 4 is formed by two threaded holes vertically communicating with each other.
Further scheme: the output port of the first conduction part is provided with a right-angle connector 12, and the right-angle connector 12 is arranged in a threaded hole in the vertical direction; the input port of the second pass through component is fitted with a through fitting 13, and the through fitting 13 is fitted in a threaded hole in the horizontal direction.
Further scheme: the output port of the second conducting part is provided with a through joint which is arranged in a threaded hole in the outer wall of the axle housing 15.
The specific installation process is as follows: with continued reference to fig. 2 and 3, the motor 11 is used as an input end of the speed reducer and is mounted on the frame 4; the O-shaped ring 9 plays a role in sealing the speed reducer gear lubricating oil 8, and the lubricating oil 8 is sealed in the inner cavity of the speed reducer by the O-shaped ring 9. A steel pipe 10 is arranged in the frame 4, one end of the steel pipe 10 is arranged on the sealing cylinder 6 through a straight joint 7, and the steel pipe 10 is communicated with the inner cavity of the speed reducer. As shown in figure 3, two threaded holes with bottom holes vertically communicated are designed on the frame 4, the other end of the steel pipe 10 is arranged on one threaded hole of the frame 4 through a right-angle joint 12 and a straight joint 13, and the other threaded hole is connected with a hose 14 through the straight joint 13. As shown in fig. 2, the hose 14 leads from the interior of the axle housing 15 to the exterior wall of the axle housing 15 and is secured to the axle housing 15. The place is used for installing the waterproof and oilproof vent plug 16, and when the vent plug 16 is blocked or damaged, the maintenance or the replacement is convenient.
The utility model discloses a technical scheme has solved the unable fixed air permeable component's of outside whole rotatory reduction gear problem, guarantees air permeable component mounted position's security, maintainability simultaneously, has balanced inside and outside atmospheric pressure of reduction gear, greatly reduced the oil leak risk of wheel limit speed reducer sealing member.
The utility model also discloses a hub reduction gear system, including speed reducer, wheel hub 3, tire 5, wheel hub 3 installs on the speed reducer, and tire 5 installs on wheel hub 3, installs foretell hub reduction gear ventilation structure in the frame 4 of speed reducer.
The utility model also discloses an engineering machine, which is provided with the wheel edge speed reducer ventilating structure; alternatively, the above-described wheel side reduction gear system is mounted.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical matters of the present invention are within the scope of the present invention.
Claims (12)
1. The utility model provides a ventilative structure of hub reduction gear which characterized in that includes:
the first conduction component is positioned in the rack, an input port of the first conduction component is communicated with an inner cavity of the speed reducer, and an output port of the first conduction component is communicated with a through hole formed in the inner wall of the rack;
the second conduction component is positioned in the axle housing, an input port of the second conduction component is communicated with the through hole, and an output port of the second conduction component is led to the outer wall of the axle housing from the inner cavity of the axle housing and is fixed;
and the gas generated by the inner cavity of the speed reducer is exhausted from the gas permeable component after passing through the first conducting component and the second conducting component.
2. The wheel hub speed reducer ventilation structure of claim 1, characterized in that:
the first conducting part is laid along the inner wall of the rack.
3. The wheel hub speed reducer ventilation structure of claim 2, characterized in that:
the first conducting component is a hard tube and is laid along the inner wall of the rack through multiple bending.
4. The wheel hub speed reducer ventilation structure of claim 1, characterized in that:
the second conducting component adopts a hose, and the through hole on the inner wall of the rack is communicated with the ventilating component through one-time bending.
5. The wheel hub speed reducer ventilation structure of claim 1, characterized in that:
the input port of the first conduction component is provided with a straight-through joint, and the straight-through joint is arranged on the arc-shaped side wall of the sealing cylinder, so that the first conduction component is communicated with the inner cavity of the speed reducer.
6. The wheel hub speed reducer ventilation structure of claim 5, characterized in that:
an O-shaped ring for sealing lubricating oil in the inner cavity of the speed reducer is arranged between one axial surface of the sealing cylinder and the motor.
7. The wheel hub speed reducer ventilation structure of claim 1, characterized in that:
the through hole on the inner wall of the frame is composed of two threaded holes which are vertically communicated.
8. The breathable structure of a hub reduction gear according to claim 7, characterized in that:
the output port of the first conduction part is provided with a right-angle connector, and the right-angle connector is arranged in a threaded hole in the vertical direction;
and the input port of the second conduction component is provided with a through joint which is arranged in a threaded hole in the horizontal direction.
9. The wheel hub speed reducer ventilation structure of claim 1, characterized in that:
and a through joint is arranged at an output port of the second conduction component and is arranged in a threaded hole in the outer wall of the axle housing.
10. The wheel hub speed reducer ventilation structure of claim 1, characterized in that:
the breathable component is a waterproof and oilproof breathable plug, and the breathable plug is arranged in a threaded hole in the outer wall of the axle housing.
11. The utility model provides a hub reduction gear system, includes speed reducer, wheel hub, tire, wheel hub installs on the speed reducer, the tire is installed on wheel hub, its characterized in that:
a wheel reduction gear ventilation structure according to any one of claims 1 to 10 is installed in a frame of the reduction gear.
12. A construction machine, characterized in that:
a wheel reduction gear ventilating structure according to any one of claims 1 to 10 is installed; alternatively, the wheel hub reduction system according to claim 11 is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221468758.4U CN217401658U (en) | 2022-06-14 | 2022-06-14 | Wheel edge speed reducer ventilation structure, wheel edge speed reducer system and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221468758.4U CN217401658U (en) | 2022-06-14 | 2022-06-14 | Wheel edge speed reducer ventilation structure, wheel edge speed reducer system and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217401658U true CN217401658U (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221468758.4U Active CN217401658U (en) | 2022-06-14 | 2022-06-14 | Wheel edge speed reducer ventilation structure, wheel edge speed reducer system and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217401658U (en) |
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2022
- 2022-06-14 CN CN202221468758.4U patent/CN217401658U/en active Active
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