CN215720686U - Reduction gear casing, reduction gear and vehicle - Google Patents

Abstract

The utility model provides a speed reducer shell, a speed reducer and a vehicle, belongs to the technical field of vehicles, and solves the problem that the speed reducer in the prior art has oil stirring loss. This retarder casing is including keeping off oil portion and bearing oil groove, keep off oil portion and form sealed chamber in retarder casing, be provided with the gear installation cavity in the sealed chamber, the gear is disposed in the gear installation cavity, sealed chamber is used for preventing to splash to the retarder casing inner wall by the lubricating oil that the gear drove, the bearing oil groove is located keep off the below of oil portion, it just to be provided with the water conservancy diversion portion in the oil portion to keep off the water conservancy diversion portion will lubricating oil water conservancy diversion in the oil portion extremely in the bearing oil groove. According to the speed reducer shell, the oil blocking part and the bearing oil groove are arranged in the speed reducer shell, so that the oil loss caused by the fact that lubricating oil splashes to the inner wall of the speed reducer is avoided, and the lubricating effect of the whole speed reducer is improved.

Description

Reduction gear casing, reduction gear and vehicle

Technical Field

The utility model belongs to the technical field of vehicles, and particularly relates to a speed reducer shell, a speed reducer and a vehicle.

Background

The speed reducer, which is used for reducing the rotational speed and increasing the torque, plays a role in matching the rotational speed and transmitting the torque between the prime mover and the working machine or the actuator, and is a relatively precise machine.

In the prior art, a speed reducer adopts a splash lubrication mode which is lower in cost and higher in reliability compared with forced lubrication; however, the splash lubrication mode is difficult to avoid that part of oil splashes to the parts of the speed reducer and the inner wall of the shell, so that the oil stirring loss cannot be well controlled, and the cost is increased. In order to meet the requirement of the reducer on the overall efficiency, it is important to control the oil stirring loss in the reducer.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a reducer housing, a reducer and a vehicle, which are used for solving the problem of oil churning loss in the prior art.

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

the utility model provides a speed reducer shell which comprises an oil blocking part and a bearing oil groove, wherein a sealing cavity is formed in the oil blocking part in the speed reducer shell, a gear installation cavity is arranged in the sealing cavity, a gear is arranged in the gear installation cavity, the sealing cavity is used for preventing lubricating oil driven by the gear from splashing to the inner wall of the speed reducer shell, the bearing oil groove is positioned below the oil blocking part, and a flow guide part is arranged on the oil blocking part and guides the lubricating oil on the oil blocking part to the bearing oil groove.

As a preferable scheme of the above speed reducer housing, the speed reducer housing includes two gear installation cavities, the oil blocking portion includes two continuously intersecting arc portions, the arc portions are arranged along the circumferential direction of the gear installation cavities and used for preventing lubricating oil from splashing to the inner wall of the speed reducer, and the number of the arc portions is consistent with the number of the gear installation cavities.

As a preferable mode of the above speed reducer housing, the speed reducer housing includes a first housing and a second housing that are abutted against each other, and the first housing and the second housing are abutted to form the gear mounting cavity, the oil blocking portion, and the bearing oil groove.

As a preferable mode of the above speed reducer case, the first case is provided with a first positioning portion, the second case is provided with a second positioning portion, and the first positioning portion and the second positioning portion are adapted to each other.

As a preferable mode of the above-described reducer case, the flow guide portion is located at an intersection of two of the arc portions that continuously intersect.

As a preferable scheme of the above speed reducer housing, a communication port is formed in the flow guide portion, and the communication port communicates with the two gear installation cavities.

As the preferred scheme of above-mentioned reduction gear casing, the bearing oil groove includes first oil groove and second oil groove, first oil groove and second oil groove respectively with two gear installation cavity intercommunication.

As a preferred embodiment of the above speed reducer housing, one end of the diversion portion, which is far away from the oil blocking portion, is a tail end, one end of the diversion portion, which is close to the oil blocking portion, is a head end, and the communication port is located at the tail end so that the width of the diversion portion gradually decreases from the head end to the tail end.

The utility model also provides a speed reducer which comprises any speed reducer shell.

The utility model also provides a vehicle comprising any one of the reducer housings or the reducer.

In conclusion, the beneficial effects of the utility model are as follows:

according to the speed reducer shell, the oil blocking part and the bearing oil groove are arranged in the speed reducer shell, the oil blocking part forms the sealing cavity in the speed reducer shell, the gear mounting cavity for mounting the gear is arranged in the sealing cavity, the gear is prevented from driving lubricating oil to splash to the inner wall of the speed reducer, and the oil stirring loss is effectively reduced. Utilize simultaneously to be located the water conservancy diversion portion that sets up in the crossing department of two arc portions to follow the lubricating oil water conservancy diversion that the oil blocking portion flows down to the bearing oil groove, the lubricating oil backward flow in the reduction gear goes into gear installation intracavity behind the bearing oil groove, has shortened the route of lubricating oil backward flow, has avoided lubricating oil to splash the oil mass loss that causes behind the reduction gear inner wall to the lubricated effect of whole reduction gear has been improved. Meanwhile, the arc-shaped parts on the oil blocking parts are continuously intersected to support each other, so that the strength of the whole shell is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without any creative effort, other drawings may be obtained according to the drawings, and these drawings are all within the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of a speed reducer according to an embodiment of the present invention;

FIG. 2 is a first exploded view of a retarder according to an embodiment of the present invention;

FIG. 3 is a second exploded view of the retarder according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a first shell of the speed reducer according to the embodiment of the utility model;

FIG. 5 is a schematic diagram of a second casing of the speed reducer according to the embodiment of the utility model;

icon: 1. a first housing; 11. a first positioning portion; 12. an oil port; 2. a second housing; 21. a second positioning portion; 22. a vent; 3. a gear mounting cavity; 4. an oil retaining portion; 41. a first oil blocking rib; 42. a second oil retaining rib; 5. a flow guide part; 51. a first oil guiding rib; 52. a second oil guiding rib; 6. a bearing oil groove; 61. a first oil groove; 62. and a second oil groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, the embodiments of the present invention and the various features of the embodiments may be combined with each other within the scope of the present invention.

Example 1

Referring to fig. 1 to 3, an embodiment of the utility model discloses a reducer housing for reducing oil churning loss.

The reducer case includes an oil retaining portion 4 and a bearing oil groove 6. The oil blocking portion 4 can form a sealed cavity in the reducer case. Be provided with gear installation cavity 3 in the sealed cavity, gear installation cavity 3 is located the sealed cavity, the sealed cavity is used for preventing to be disposed the gear drive lubricating oil in gear installation cavity 3 and splashes to the reduction gear inner wall, be provided with water conservancy diversion portion 5 on keeping off oil portion 4 just water conservancy diversion portion 5 will keep off lubricating oil water conservancy diversion on the oil portion 4 extremely in the bearing oil groove 6.

The structure of the sealed cavity is not limited, for example, a closed cavity enclosed by only the oil blocking portion 4 (here, the oil blocking portion 4 is not in contact with the inner wall of the speed reducer), but of course, the oil blocking portion 4 may also be connected with the inner wall of the speed reducer to form a closed cavity (here, the oil blocking portion 4 is connected with the inner wall of the speed reducer). In the present embodiment, the seal cavity is formed by connecting the oil baffle 4 and the inner wall of the speed reducer.

Generally, at least two gear mounting cavities 3 are arranged in the reducer casing, in the embodiment, two gear mounting cavities 3 are arranged on the reducer casing, and in other embodiments, three or four gear mounting cavities 3 may be arranged on the reducer casing.

The oil blocking portion 4 includes an arc portion for blocking the splashed lubricating oil.

It should be noted that the number of the arc-shaped portions is not fixed but should be the same as the number of the gear mounting cavities 3, and in this embodiment, the oil blocking portion 4 includes two arc-shaped portions that continuously intersect.

In addition on the one hand, in this embodiment, the arc portion sets up along 3 circumference in gear installation cavity, can effectively improve the oil retaining effect.

Of course, the oil blocking portion 4 may also be in the shape of a straight plate or the like, but providing the oil blocking portion 4 in an arc shape may better collect the lubricating oil splashed onto the oil blocking portion 4 even if the lubricating oil on the oil blocking portion 4 flows down along the arc-shaped portion.

Likewise, the number of flow guides 5 is not fixed, and the flow guides 5 are always arranged at the intersection of two arcs, so that the number of flow guides 5 varies with the number of arcs.

In this embodiment, the guiding portion 5 is located at the intersection of two consecutive intersecting arc portions, the shape and the position of the guiding portion 5 are not fixed, the guiding portion 5 may be a curved plate, an irregular plate, etc., the guiding portion 5 may also be inclined relative to the vertical direction, in this embodiment, the guiding portion 5 is a plate structure, and the guiding portion 5 is arranged along the vertical direction.

The guide part 5 is arranged to be a vertically distributed plate structure, so that lubricating oil can fall along the gravity direction of the lubricating oil, and the speed of the lubricating oil flowing back to the gear mounting cavity 3 is increased.

The middle part of water conservancy diversion portion 5 is seted up the intercommunication mouth, and this intercommunication mouth communicates two gear installation chambeies. Lubricating oil in the two gear mounting cavities 3 can be exchanged through the communication port, namely lubricating oil in the two gear mounting cavities 3 can be subjected to heat exchange through the communication port.

Specifically, the one end of diversion portion 5 far away from oil baffle portion 4 is the tail end, and the one end close to oil baffle portion 4 is the head end, and the intercommunication mouth tail end can make the width of diversion portion 5 reduce from head end to tail end gradually.

The shape of the communication port is not fixed, and the communication port can be in a triangular structure or a square-shaped structure, and the communication port adopts the square-shaped structure in the embodiment.

It should be noted that, with such an arrangement, the lubricating oil can be better guided when flowing down along the flow guide part 5, and the lubricating oil can be better guided to flow into the bearing oil groove 6.

The bearing oil grooves 6 can contain lubricating oil flowing down along the flow guide parts 5, and the number of the bearing oil grooves 6 is not fixed but is consistent with the number of the flow guide parts 5 and is positioned below the flow guide parts 5.

The structure and the number of the bearing oil grooves 6 are not fixed, and the following modes can be adopted, but not limited:

the bearing oil groove 6 comprises a first oil groove 61 and a second oil groove 62, and the first oil groove 61 and the second oil groove 62 are respectively communicated with the two gear installation cavities 3.

In other embodiments, the bearing oil groove 6 may include only one first oil groove 61 or one second oil groove or a plurality of first oil grooves 61 and second oil grooves 62.

In other embodiments, the first oil groove 61, the second oil groove 62 may not communicate with the gear mounting cavity 3 or only the first oil groove 61 communicates with the gear mounting cavity 3, etc.

It should be noted that, the depth of the bearing oil groove 6 is the same as the depth of the gear installation cavity 3, so that the amount of the lubricating oil stored in the bearing oil groove 6 is more, and a better lubricating effect can be achieved.

The structure of the reducer casing is not fixed, and the following modes can be adopted, but not limited:

the speed reducer shell is composed of a first shell 1 and a second shell 2 which are mutually abutted, wherein the first shell 1 and the second shell 2 are abutted to form a gear installation cavity 3, an oil retaining part 4 and a bearing oil groove 6.

The first shell 1 and the second shell 2 can be connected with each other by welding, screwing and the like so as to assemble an integral speed reducer shell with a closed cavity.

Referring to fig. 4, it should be noted that the first housing 1 is provided with a first positioning portion 11, the second housing 2 is provided with a second positioning portion 21, and the first positioning portion 11 and the second positioning portion 21 are adapted to each other. The first positioning portion 11 and the second positioning portion are mutually engaged, for example, the first positioning portion 11 is a protrusion, and the second positioning portion 21 is a groove. Or the first positioning portion 11 is a groove and the second positioning portion 21 is a protrusion. In this embodiment, the second positioning portion 21 may extend into the first positioning portion 11 to achieve the snap-fit.

Specifically, the first housing 1 is provided with two gear mounting holes, one of the gear mounting holes is a through hole and the other one is a blind hole (the gear mounting holes are two round holes with different radiuses, here, the round hole with the smaller radius is the through hole, and the round hole with the larger radius is the blind hole). The first casing 1 is provided with two arc-shaped first oil retaining ribs 41 and a first oil guiding rib 51 located at the intersection of the two arc-shaped first oil retaining ribs 41.

Referring to fig. 5, in detail, the second housing 2 is also provided with two gear mounting holes, one of the gear mounting holes is a through hole and the other one is a blind hole (the gear mounting hole is two round holes with different radiuses, where the round hole with the smaller radius is the blind hole and the round hole with the larger radius is the through hole), and the second housing 2 is provided with two arc-shaped second oil retaining ribs 42 and a second oil guiding rib 52 located at the intersection of the two arc-shaped second oil retaining ribs 42.

After first casing 1 and 2 butts of second casing, four gear mounting holes cooperate in pairs respectively and constitute two gear installation chamber 3, two first fender oily muscle 41 and two second fender oily muscle 42's position correspond to surround just and form a complete fender oil portion 4, first oil muscle 51 and the second of leading leads oily muscle 52 and corresponds the concatenation and constitute water conservancy diversion portion 5, first oil groove 61 and the concatenation of second oil groove 62 constitute complete bearing oil groove 6, first oil groove 61 and second oil groove 62 communicate with two gear installation chamber 3 respectively.

It should be noted that, after first casing 1 and the concatenation of second casing 2, the intercommunication mouth of a "mouth" font is seted up at the middle part of water conservancy diversion portion 5, and when the reduction gear function, lubricating oil in the reduction gear can exchange the lubricating oil in two gear installation chambeies 3 through this intercommunication mouth, lets the lubricating oil in two gear installation chambeies 3 fully carry out the heat exchange promptly to make whole reduction gear be in same temperature state.

It should be noted that, after the flow guiding portion 5 forms the "mouth" shaped communicating opening, the width of the flow guiding portion 5 will be gradually reduced from the head end (close to the oil guiding portion side) to the tail end (far away from the oil guiding portion side), so that the lubricating oil can flow into the oil guiding groove conveniently, thereby improving the lubricating effect.

Of course, in other embodiments, the oil blocking portion 4, the flow guiding portion 5, and the bearing oil groove 6 may be separately provided on the first housing 1 or the second housing 2.

The reducer housing is further provided with an oil port 12, the oil port 12 is used for adding or replacing new lubricating oil, the oil port 12 may be arranged on the first housing 1 or the second housing 2, and in this embodiment, the oil port 12 is opened on the first housing 1.

The reducer housing is also provided with a vent 22, typically a vent plug is provided in the vent during use of the reducer, which allows excess air in the reducer to be vented while preventing leakage of lubricating oil. The air vents 22 may be provided on the first housing 1 or the second housing 2, although the number of air vents 22 may be adjusted according to the actual number. In the present embodiment, the second housing 2 is provided with a vent 22.

An embodiment of the utility model also provides a speed reducer, which comprises the speed reducer shell.

An embodiment of the utility model also provides a vehicle, which comprises the speed reducer shell or the speed reducer.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a speed reducer casing, its characterized in that, speed reducer casing is including keeping off oil portion and bearing oil groove, keep off oil portion and form sealed chamber in speed reducer casing, sealed intracavity is provided with the gear installation cavity, and the gear is disposed in the gear installation cavity, sealed chamber is used for preventing to be splashed to speed reducer casing inner wall by the lubricating oil that the gear drove, the bearing oil groove is located keep off the below of oil portion, it just to be provided with water conservancy diversion portion in the oil portion just water conservancy diversion portion will keep off the lubricating oil water conservancy diversion in the oil portion extremely in the bearing oil groove.

2. The reducer case according to claim 1, wherein the reducer case includes two gear mounting cavities, and the oil blocking portion includes two arc portions that intersect in series, the arc portions being provided along a circumferential direction of the gear mounting cavities for preventing lubricating oil from splashing to an inner wall of the reducer, and a number of the arc portions is identical to a number of the gear mounting cavities.

3. The reducer case according to claim 1, wherein the reducer case includes a first case and a second case that abut against each other, and the first case and the second case form the gear mounting cavity, the oil stopper portion, and the bearing oil groove after abutting against each other.

4. The reducer housing according to claim 3, wherein a first positioning portion is provided on the first housing, a second positioning portion is provided on the second housing, and the first positioning portion and the second positioning portion are fitted to each other.

5. The reducer housing according to claim 2, wherein the flow guide is located at an intersection of two of the arcuate portions that intersect in series.

6. The reducer casing according to claim 2, wherein the flow guide portion has a communication opening formed therein and the communication opening communicates with the two gear mounting cavities.

7. The reducer housing according to any one of claims 1-6, wherein the bearing oil groove comprises a first oil groove and a second oil groove, and the first oil groove and the second oil groove are respectively communicated with the two gear mounting cavities.

8. The reducer casing according to claim 6, wherein the end of the flow guiding portion away from the oil retaining portion is a tail end, the end of the flow guiding portion close to the oil retaining portion is a head end, and the communication port is located at the tail end so that the width of the flow guiding portion gradually decreases from the head end to the tail end.

9. A retarder, characterized in that the retarder comprises a retarder housing according to any of claims 1-8.

10. A vehicle, characterized in that it comprises a retarder housing according to any of claims 1-8 or a retarder according to claim 9.

Images