CN220378845U - Speed reducer and vehicle - Google Patents
Speed reducer and vehicle Download PDFInfo
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- CN220378845U CN220378845U CN202321833799.3U CN202321833799U CN220378845U CN 220378845 U CN220378845 U CN 220378845U CN 202321833799 U CN202321833799 U CN 202321833799U CN 220378845 U CN220378845 U CN 220378845U
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 238000005538 encapsulation Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000010073 coating (rubber) Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 description 13
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 239000004519 grease Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a speed reducer and a vehicle, wherein the speed reducer comprises a box body, an input shaft, an intermediate shaft, a first transmission assembly and a second transmission assembly, wherein the input shaft is inserted into the box body through an input port of the box body; the second transmission assembly comprises a first sun gear, a second sun gear, a first planetary gear assembly, a second planetary gear assembly and a first gear ring and a second gear ring which are fixedly sleeved at two ends of the middle shaft, wherein the first gear ring and the second gear ring are sleeved at the periphery of the box body; high bearing performance, high transmission efficiency, small volume, light weight and low noise.
Description
Technical Field
The utility model relates to the technical field of vehicle equipment, in particular to a speed reducer and a vehicle.
Background
The speed reducer plays a role in matching the rotating speed and transmitting the torque between the prime motor and the working machine or the executing mechanism, is a relatively precise machine, is used for reducing the rotating speed and increasing the torque, is widely applied to modern machines, such as intelligent forklifts, but the existing speed reducer has low bearing performance, large volume, heavy weight and large noise, and cannot meet the use requirements of intelligent vehicles.
Disclosure of Invention
The utility model mainly aims to provide a speed reducer and a vehicle, and aims to solve the problems that the existing speed reducer is low in bearing performance, large in size, heavy in weight and large in noise and cannot meet the use requirement of an intelligent vehicle.
In order to achieve the above object, the present utility model provides a speed reducer for a vehicle, comprising:
the box body is used for being fixed on a frame of the vehicle, and one side of the box body in the first direction is provided with an input port;
the input shaft extends along the first direction, one of two ends of the input shaft is inserted into the box body through the input port, and the other end of the input shaft is used for being connected with a motor of the vehicle;
the intermediate shaft is arranged in the box body and extends along the second direction;
the first transmission assembly is arranged in the box body and comprises a bevel gear and a bevel gear, the bevel gear is sleeved on the periphery of the input shaft and fixedly connected with the input shaft, the bevel gear is sleeved on the periphery of the intermediate shaft and is arranged on one side of the bevel gear in the second direction, and the bevel gear is meshed with the bevel gear; the method comprises the steps of,
the first planetary gear assembly is connected with the outer ring of the first sun gear and is connected with the inner ring of the first gear ring, the first planetary gear set at least comprises three first planetary gears, the three first planetary gears are distributed at intervals along the circumferential direction of the first sun gear and are used for driving the first gear ring to rotate when rotating around the axis relative to the first sun gear, the second planetary gear assembly is connected with the outer ring of the second sun gear and is connected with the inner ring of the second gear ring, the second planetary gear assembly at least comprises three second planetary gears, and the three second planetary gears are distributed at intervals along the circumferential direction of the second sun gear and are used for driving the second gear ring to rotate around the second axis when rotating around the axis relative to the first sun gear;
wherein the first direction and the second direction are perpendicular in a horizontal plane.
Optionally, the second transmission assembly further comprises an encapsulation assembly comprising:
the first rubber coating is sleeved on the periphery of the first gear ring and is integrally formed with the first gear ring; the method comprises the steps of,
the second rubber coating is sleeved on the periphery of the second gear ring and is integrally formed with the second gear ring.
Optionally, the speed reducer further includes:
the first bearing assembly is sleeved in the first gear ring and sleeved on the periphery of the box body, and is rotationally connected with the first gear ring and fixedly connected with the box body; the method comprises the steps of,
the second bearing assembly is sleeved in the second gear ring and sleeved on the periphery of the box body, and is rotationally connected with the second gear ring and fixedly connected with the box body.
Optionally, the first bearing assembly includes a first seal bearing and a second seal bearing, and the first seal bearing and the second seal bearing are separately disposed on two sides of the first planet in the second direction.
Optionally, the second bearing assembly includes a third seal bearing and a fourth seal bearing, and the third seal bearing and the fourth seal bearing are respectively disposed at two sides of the second planet wheel in the second direction.
Optionally, one of two ends of the box body in the second direction is provided with a first limit groove, the other one of the two ends is provided with a second limit groove, the first limit groove and the second limit groove are respectively arranged along the circumferential extension of the box body, the first limit groove is arranged at one side of the first bearing component far away from the second bearing component, and the second limit groove is arranged at one side of the second bearing component far away from the first bearing component;
the speed reducer further includes:
the first limiting assembly is arranged in the first limiting groove and comprises a first shaft check ring and a first baffle plate, and the first baffle plate is arranged on one side, close to the first bearing assembly, of the first shaft check ring and is used for abutting against the first bearing assembly; the method comprises the steps of,
the second limiting assembly is arranged in the second limiting groove and comprises a second bearing retainer ring and a second baffle plate, and the second baffle plate is arranged on one side, close to the second bearing assembly, of the second bearing retainer ring and is used for being abutted against the second bearing assembly.
Optionally, the box body includes a first box cover and a second box cover, where the first box cover and the second box cover are sequentially arranged along the second direction and form a containing cavity together, the intermediate shaft, the first transmission component, the first sun gear, the second sun gear, the first planet gear component and the second planet gear component are contained in the containing cavity, the first box cover is provided with a first connecting hole corresponding to the first sun gear so that the first planet gear component is connected with the first gear ring through the first connecting hole, and the second box cover is provided with a second connecting hole corresponding to the second sun gear so that the second planet gear component is connected with the second gear ring through the second connecting hole;
the first box cover and the second box cover are fixedly connected through a first inner hexagon screw.
Optionally, the speed reducer further comprises a connecting flange arranged at the input port, wherein the connecting flange is fixedly connected with the box body and is rotationally connected with the input shaft.
The utility model also provides a vehicle comprising a speed reducer, the speed reducer comprising:
the box body is used for being fixed on a frame of the vehicle, and one side of the box body in the first direction is provided with an input port;
the input shaft extends along the first direction, one of two ends of the input shaft is inserted into the box body through the input port, and the other end of the input shaft is used for being connected with a motor of the vehicle;
the intermediate shaft is arranged in the box body and extends along the second direction;
the first transmission assembly is arranged in the box body and comprises a bevel gear and a bevel gear, the bevel gear is sleeved on the periphery of the input shaft and fixedly connected with the input shaft, the bevel gear is sleeved on the periphery of the intermediate shaft and is arranged on one side of the bevel gear in the second direction, and the bevel gear is meshed with the bevel gear; the method comprises the steps of,
the first planetary gear assembly is connected with the outer ring of the first sun gear and is connected with the inner ring of the first gear ring, the first planetary gear set at least comprises three first planetary gears, the three first planetary gears are distributed at intervals along the circumferential direction of the first sun gear and are used for driving the first gear ring to rotate when rotating around the axis relative to the first sun gear, the second planetary gear assembly is connected with the outer ring of the second sun gear and is connected with the inner ring of the second gear ring, the second planetary gear assembly at least comprises three second planetary gears, and the three second planetary gears are distributed at intervals along the circumferential direction of the second sun gear and are used for driving the second gear ring to rotate around the second axis when rotating around the axis relative to the first sun gear;
wherein the first direction and the second direction are perpendicular in a horizontal plane.
Optionally, the vehicle is a forklift.
In the technical scheme of the utility model, the speed reducer comprises a box body, an input shaft, an intermediate shaft, a first transmission assembly and a second transmission assembly, wherein the first transmission assembly comprises a bevel gear and a bevel gear, the driving force of a motor of the vehicle is transmitted to the bevel gear and the bevel gear through the input shaft to realize primary speed reduction, and is transmitted to the second transmission assembly through the intermediate shaft to realize secondary speed reduction, and the second transmission assembly comprises a first sun gear, a second sun gear, a first planetary gear assembly, a second planetary gear assembly, a first gear ring and a second gear ring, namely two planetary transmission assemblies respectively arranged at two ends of the intermediate shaft, and each planetary transmission assembly comprises the sun gear, the planetary gear assembly and the gear ring, namely, the planetary transmission structure is equivalent to a planetary transmission structure adopted by the existing speed reducer; meanwhile, compared with a parallel shaft speed reduction transmission structure adopted by the existing speed reducer, the speed reducer has the advantages of high transmission efficiency, small volume, light weight and low noise; in addition, the utility model adopts the transmission structure of the bevel gear and the bevel gear combination, thereby further reducing noise and meeting the use requirement of the vehicle.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a cross-sectional view of an embodiment of a speed reducer provided by the present utility model.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Speed reducer | 55 | First gear ring |
| 1 | Box body | 56 | Second gear ring |
| 11 | First box cover | 57 | Encapsulation assembly |
| 12 | Second case cover | 571 | First encapsulation |
| 13 | Accommodating cavity | 572 | Second coating adhesive |
| 14 | First inner hexagon screw | 6 | First bearing assembly |
| 2 | Input shaft | 61 | First sealed bearing |
| 3 | Intermediate shaft | 62 | Second sealed bearing |
| 4 | First transmission assembly | 7 | Second bearing assembly |
| 41 | Bevel gear | 71 | Third sealed bearing |
| 42 | Helical gear | 72 | Fourth sealing bearing |
| 5 | Second transmission assembly | 8 | First oneSpacing subassembly |
| 51 | First sun gear | 81 | Check ring for first shaft |
| 52 | Second sun gear | 82 | First baffle plate |
| 53 | First planetary gear assembly | 9 | Second limiting assembly |
| 531 | First planetary gear | 91 | Check ring for second shaft |
| 54 | Second planetary gear assembly | 92 | Second baffle plate |
| 541 | Second planetary gear | 10 | Connecting flange |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The speed reducer plays a role in matching the rotating speed and transmitting the torque between the prime motor and the working machine or the executing mechanism, is a relatively precise machine, is used for reducing the rotating speed and increasing the torque, is widely applied to modern machines, such as intelligent forklifts, but the existing speed reducer has low bearing performance, large volume, heavy weight and large noise, and cannot meet the use requirements of intelligent vehicles.
In view of this, the present utility model particularly provides a speed reducer 100, where the speed reducer 100 is used in a vehicle, and fig. 1 is a schematic structural diagram of an embodiment of the speed reducer 100.
Referring to fig. 1, the speed reducer 100 includes a box 1, an input shaft 2, an intermediate shaft 3, a first transmission assembly 4, and a second transmission assembly 5, where the box 1 is fixed on a frame of the vehicle, and an input port is formed on one side of the box in a first direction; the input shaft 2 extends along the first direction, one of two ends of the input shaft is inserted into the box body 1 through the input port, and the other end of the input shaft is used for being connected with a motor of the vehicle; the intermediate shaft 3 is arranged in the box body 1 and extends along a second direction; the first transmission assembly 4 is arranged in the box body 1 and comprises a bevel gear 41 and a bevel gear 42, the bevel gear 41 is sleeved on the periphery of the input shaft 2 and fixedly connected with the input shaft 2, the bevel gear 42 is sleeved on the periphery of the intermediate shaft 3 and arranged on one side of the bevel gear 41 in the second direction, and the bevel gear 42 is meshed with the bevel gear 41; the second transmission assembly 5 includes a first sun gear 51, a second sun gear 52, a first planetary gear assembly 53, a second planetary gear assembly 54, a first gear ring 55 and a second gear ring 56, where the first sun gear 51 and the second sun gear 52 are respectively disposed at two ends of the intermediate shaft 3, the first gear ring 55 and the second gear ring 56 are respectively sleeved on the outer periphery of the case 1 and are respectively connected to an actuating mechanism of the vehicle, the first planetary gear assembly 53 is connected to an outer ring of the first sun gear 51 and is connected to an inner ring of the first gear ring 55, the first planetary gear assembly 53 includes at least three first planetary gears 531, and the three first planetary gears 531 are distributed at intervals along a circumferential direction of the first sun gear 51 to drive the first gear ring 55 to rotate when rotating around an axis relative to the first sun gear 51, the second planetary gear assembly 54 is connected to an outer ring of the second sun gear 52 and is connected to an inner ring of the second gear 56, and includes at least three planetary gears 54 distributed around a second sun gear ring 52 and is used to drive the second sun gear ring gear 52 to rotate around a second axis 541 when rotating around a second sun gear 52; wherein the first direction and the second direction are perpendicular in a horizontal plane.
In the technical scheme of the utility model, the speed reducer 100 comprises a box body 1, an input shaft 2, an intermediate shaft 3, a first transmission assembly 4 and a second transmission assembly 5, the first transmission assembly 4 comprises a bevel gear 41 and a bevel gear 42, the driving force of a motor of the vehicle is transmitted to the bevel gear 41 and the bevel gear 42 through the input shaft 2, the first-stage speed reduction is realized, and then the driving force is transmitted to the second transmission assembly 5 through the intermediate shaft 3, the second speed reduction is realized through the second transmission assembly 5, the second transmission assembly 5 comprises a first sun gear 51, a second sun gear 52, a first planetary gear assembly 53, a second planetary gear assembly 54, a first gear ring 55 and a second gear ring 56, namely, the two planetary transmission assemblies respectively arranged at two ends of the intermediate shaft 3, each planetary transmission assembly comprises a sun gear, a planetary gear assembly and a gear ring gear, namely, the driving structure equivalent to the single planetary transmission structure adopted by the existing speed reducer 100, the double planetary transmission structure adopted by the utility model can greatly improve the bearing performance of the speed reducer 100, and the bearing performance of the speed reducer 100 can be nearly doubled; meanwhile, compared with the parallel shaft speed reduction transmission structure adopted by the existing speed reducer 100, the speed reducer has the advantages of high transmission efficiency, small volume, light weight and low noise; in addition, the utility model adopts the transmission structure of the combination of the bevel gear 41 and the bevel gear 42, not only has the functions of transmitting torque, steering and dividing power, but also can further reduce noise and meet the use requirement of the vehicle.
More specifically, the bevel gear 41 is a spiral bevel gear 41.
The actuator of the vehicle includes a wheel or the like.
It should be noted that, in the present utility model, the number of the first planetary gears 531 and the second planetary gears 541 is three or more, that is, three, four, five, six, or the like, and specifically, in an embodiment of the present utility model, the first planetary gears 531 and the second planetary gears 541 are respectively provided with three, so as to reduce the overall volume of the speed reducer 100 while ensuring stable transmission.
In addition, referring to fig. 1, in an embodiment of the present utility model, the first direction is a direction F1, and the second direction is a direction F2.
Further, referring to fig. 1, the second transmission assembly 5 further includes an encapsulation assembly 57, where the encapsulation assembly 57 includes a first encapsulation 571 and a second encapsulation 572, the first encapsulation 571 is sleeved on the outer periphery of the first gear ring 55 and is integrally formed with the first gear ring 55, and the second encapsulation 572 is sleeved on the outer periphery of the second gear ring 56 and is integrally formed with the second gear ring 56; therefore, power output is guaranteed through the gear ring rubber coating, the gear ring rubber coating is integrally formed, and the whole structure is compact.
Specifically, the speed reducer 100 further includes a first bearing assembly 6 and a second bearing assembly 7, the first bearing assembly 6 is sleeved in the first gear ring 55 and sleeved on the outer periphery of the case 1, the first bearing assembly 6 is rotationally connected with the first gear ring 55 and is fixedly connected with the case 1, the second bearing assembly 7 is sleeved in the second gear ring 56 and is sleeved on the outer periphery of the case 1, and the second bearing assembly 7 is rotationally connected with the second gear ring 56 and is fixedly connected with the case 1. Thus, by providing the first bearing assembly 6 to support the first ring gear 55 and providing the second bearing assembly 7 to support the second ring gear 56, rotational stability of the first ring gear 55 and the second ring gear 56 is improved, and the service life is prolonged.
In the present utility model, the number of bearings in the first bearing assembly 6 is not limited, and of course, the number of bearings in the second bearing assembly 7 is not limited.
Further, the first bearing assembly 6 includes a first seal bearing 61 and a second seal bearing 62, the first seal bearing 61 and the second seal bearing 62 being provided separately on both sides of the first planet 531 in the second direction; in this way, the first seal bearing 61 and the second seal bearing 62 support the first ring gear 55 together, improving the transmission stability of the first ring gear 55.
Specifically, the second bearing assembly 7 includes a third seal bearing 71 and a fourth seal bearing 72, where the third seal bearing 71 and the fourth seal bearing 72 are separately disposed on two sides of the second planet gear 541 in the second direction; in this way, the third seal bearing 71 and the fourth seal bearing 72 support the second ring gear 56 together, improving the transmission stability of the second ring gear 56.
It should be noted that the two technical features may be alternatively or simultaneously provided, and in particular, referring to fig. 1, in an embodiment of the present utility model, the two technical features are simultaneously provided, that is, the first bearing assembly 6 includes a first sealing bearing 61 and a second sealing bearing 62, the first sealing bearing 61 and the second sealing bearing 62 are separately provided on two sides of the first planet gear 531 in the second direction, and the second bearing assembly 7 includes a third sealing bearing 71 and a fourth sealing bearing 72, and the third sealing bearing 71 and the fourth sealing bearing 72 are separately provided on two sides of the second planet gear 541 in the second direction; in this way, the transmission stability of the second transmission assembly 5 is ensured, and the service lives of the first ring gear 55 and the second ring gear 56 are prolonged.
In addition, the first bearing assembly 6 and the second bearing assembly 7 are supported by adopting sealed bearings, so that foreign matters such as dust and the like can be prevented from entering the bearings, grease in the bearings can be prevented from leaking, and the service lives of the first bearing assembly 6 and the second bearing assembly 7 are prolonged.
Further, the first seal bearing 61, the second seal bearing 62, the third seal bearing 71 and the fourth seal bearing 72 are deep groove ball bearings.
Specifically, in the present utility model, the first bearing assembly 6 and the second bearing assembly 7 are lubricated by No. 2 grease, so as to prevent oil leakage caused by oil dilution.
Specifically, referring to fig. 1, one of two ends of the box 1 in the second direction is provided with a first limiting groove, the other one of the two ends is provided with a second limiting groove, the first limiting groove and the second limiting groove are respectively arranged along the circumferential direction of the box 1, the first limiting groove is arranged at one side of the first bearing assembly 6 away from the second bearing assembly 7, and the second limiting groove is arranged at one side of the second bearing assembly 7 away from the first bearing assembly 6; the speed reducer 100 further comprises a first limiting assembly 8 and a second limiting assembly 9, the first limiting assembly 8 is arranged in the first limiting groove and comprises a first shaft retaining ring 81 and a first baffle 82, the first baffle 82 is arranged on one side, close to the first bearing assembly 6, of the first shaft retaining ring 81 and is used for abutting the first bearing assembly 6, the second limiting assembly 9 is arranged in the second limiting groove and comprises a second shaft retaining ring 91 and a second baffle 92, and the second baffle 92 is arranged on one side, close to the second bearing assembly 7, of the second shaft retaining ring 91 and is used for abutting the second bearing assembly 7; thus, by providing the first and second spacing assemblies 8, 9, the first and second bearing assemblies 6, 9 may be spacing in the second direction, i.e. the axial play of the first and second bearing assemblies 6, 7 may be limited.
Specifically, referring to fig. 1, in an embodiment of the present utility model, the case 1 includes a first case cover 11 and a second case cover 12, where the first case cover 11 and the second case cover 12 are sequentially disposed along the second direction and together form a receiving cavity 13, the intermediate shaft 3, the first transmission assembly 4, the first sun gear 51, the second sun gear 52, the first planetary gear assembly 53 and the second planetary gear assembly 54 are received in the receiving cavity 13, the first case cover 11 corresponds to the first sun gear 51 and has a first connection hole, so that the first planetary gear assembly 53 is connected to the first ring gear 55 through the first connection hole, and the second case cover 12 corresponds to the second sun gear 52 and has a second connection hole, so that the second planetary gear assembly 54 is connected to the second ring gear 56 through the second connection hole; the first box cover 11 and the second box cover 12 are fixedly connected through a first socket head cap screw 14; in this way, most structures of the speed reducer 100 are all arranged in the accommodating cavity 13, so that the speed reducer 100 is prevented from leaking, the speed reducer 100 is protected, the integrity is improved, and in addition, the first box cover 11 and the second box cover 12 are stably connected through the first socket head cap screw 14.
Specifically, referring to fig. 1, the speed reducer 100 further includes a connection flange 10 disposed at the input port, where the connection flange 10 is fixedly connected to the case 1 and rotatably connected to the input shaft 2, so as to improve connection stability of the input shaft 2. More specifically, the connecting flange 10 is fixedly connected with the box body 1 through a second socket head cap screw.
Further, the speed reducer 100 further includes a third bearing assembly, which is sleeved in the connecting flange 10 and sleeved on the periphery of the input shaft 2, and the third bearing assembly is fixedly connected with the connecting flange 10 and is rotatably connected with the input shaft 2; the third bearing assembly supports the input shaft 2, extending the service life of the input shaft 2. More specifically, referring to fig. 1, in an embodiment of the present utility model, the third bearing assembly includes a fifth sealing bearing and a sixth sealing bearing, and the fifth sealing bearing and the sixth sealing bearing are spaced apart along the first direction.
Specifically, the speed reducer 100 further includes a fourth bearing assembly, the fourth bearing assembly is sleeved in the box 1 and sleeved on the periphery of the intermediate shaft 3, the fourth bearing assembly is fixedly connected with the box 1 and is rotationally connected with the intermediate shaft 3, and the third bearing assembly plays a supporting role on the intermediate shaft 3, so that the service life of the intermediate shaft 3 is prolonged. More specifically, referring to fig. 1, in an embodiment of the present utility model, the fourth bearing assembly includes a seventh seal bearing and an eighth seal bearing, and the seventh seal bearing and the eighth seal bearing are distributed at two ends of the intermediate shaft 3 at intervals along the second direction, so that the intermediate shaft 3 is uniformly stressed.
The utility model also provides a vehicle comprising a speed reducer 100. It should be noted that, the vehicle adopts the above-mentioned speed reducer 100, that is, the vehicle has all the technical features of all the embodiments of the speed reducer 100, that is, all the technical effects brought by all the technical features are not described in detail herein.
Further, the vehicle is a forklift.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. A speed reducer for use in a vehicle, the speed reducer comprising:
the box body is used for being fixed on a frame of the vehicle, and one side of the box body in the first direction is provided with an input port;
the input shaft extends along the first direction, one of two ends of the input shaft is inserted into the box body through the input port, and the other end of the input shaft is used for being connected with a motor of the vehicle;
the intermediate shaft is arranged in the box body and extends along the second direction;
the first transmission assembly is arranged in the box body and comprises a bevel gear and a bevel gear, the bevel gear is sleeved on the periphery of the input shaft and fixedly connected with the input shaft, the bevel gear is sleeved on the periphery of the intermediate shaft and is arranged on one side of the bevel gear in the second direction, and the bevel gear is meshed with the bevel gear; the method comprises the steps of,
the first planetary gear assembly is connected with the outer ring of the first sun gear and is connected with the inner ring of the first gear ring, the first planetary gear set at least comprises three first planetary gears, the three first planetary gears are distributed at intervals along the circumferential direction of the first sun gear and are used for driving the first gear ring to rotate when rotating around the axis relative to the first sun gear, the second planetary gear assembly is connected with the outer ring of the second sun gear and is connected with the inner ring of the second gear ring, the second planetary gear assembly at least comprises three second planetary gears, and the three second planetary gears are distributed at intervals along the circumferential direction of the second sun gear and are used for driving the second gear ring to rotate around the second axis when rotating around the axis relative to the first sun gear;
wherein the first direction and the second direction are perpendicular in a horizontal plane.
2. The speed reducer of claim 1, wherein the second transmission assembly further comprises an encapsulation assembly comprising:
the first rubber coating is sleeved on the periphery of the first gear ring and is integrally formed with the first gear ring; the method comprises the steps of,
the second rubber coating is sleeved on the periphery of the second gear ring and is integrally formed with the second gear ring.
3. The speed reducer of claim 1, further comprising:
the first bearing assembly is sleeved in the first gear ring and sleeved on the periphery of the box body, and is rotationally connected with the first gear ring and fixedly connected with the box body; the method comprises the steps of,
the second bearing assembly is sleeved in the second gear ring and sleeved on the periphery of the box body, and is rotationally connected with the second gear ring and fixedly connected with the box body.
4. A speed reducer as defined in claim 3, wherein said first bearing assembly includes a first seal bearing and a second seal bearing, said first seal bearing and said second seal bearing being disposed on either side of said first planet in said second direction.
5. A speed reducer as claimed in claim 3, wherein the second bearing assembly includes a third seal bearing and a fourth seal bearing, the third seal bearing and the fourth seal bearing being provided separately on both sides of the second planet in the second direction.
6. The speed reducer according to any one of claims 3 to 5, wherein one of two ends of the casing in the second direction is provided with a first limit groove, the other one of the two ends is provided with a second limit groove, the first limit groove and the second limit groove are respectively arranged in a extending manner along the circumferential direction of the casing, the first limit groove is arranged on one side of the first bearing component away from the second bearing component, and the second limit groove is arranged on one side of the second bearing component away from the first bearing component;
the speed reducer further includes:
the first limiting assembly is arranged in the first limiting groove and comprises a first shaft check ring and a first baffle plate, and the first baffle plate is arranged on one side, close to the first bearing assembly, of the first shaft check ring and is used for abutting against the first bearing assembly; the method comprises the steps of,
the second limiting assembly is arranged in the second limiting groove and comprises a second bearing retainer ring and a second baffle plate, and the second baffle plate is arranged on one side, close to the second bearing assembly, of the second bearing retainer ring and is used for being abutted against the second bearing assembly.
7. The speed reducer of claim 1, wherein the box body comprises a first box cover and a second box cover, the first box cover and the second box cover are sequentially arranged along the second direction and form a containing cavity together, the intermediate shaft, the first transmission assembly, the first sun gear, the second sun gear, the first planet gear assembly and the second planet gear assembly are contained in the containing cavity, the first box cover is provided with a first connecting hole corresponding to the first sun gear so that the first planet gear assembly is connected with the first gear ring through the first connecting hole, and the second box cover is provided with a second connecting hole corresponding to the second sun gear so that the second planet gear assembly is connected with the second gear ring through the second connecting hole;
the first box cover and the second box cover are fixedly connected through a first inner hexagon screw.
8. The speed reducer of claim 1, further comprising a connecting flange disposed at the input port, the connecting flange being fixedly connected to the housing and rotatably connected to the input shaft.
9. A vehicle comprising a speed reducer according to any one of claims 1 to 8.
10. The vehicle of claim 9, wherein the vehicle is a forklift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321833799.3U CN220378845U (en) | 2023-07-12 | 2023-07-12 | Speed reducer and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321833799.3U CN220378845U (en) | 2023-07-12 | 2023-07-12 | Speed reducer and vehicle |
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| CN220378845U true CN220378845U (en) | 2024-01-23 |
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| CN202321833799.3U Active CN220378845U (en) | 2023-07-12 | 2023-07-12 | Speed reducer and vehicle |
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