CN111536222A - Transmission device and method for assembling transmission device - Google Patents

Transmission device and method for assembling transmission device Download PDF

Info

Publication number
CN111536222A
CN111536222A CN202010052987.7A CN202010052987A CN111536222A CN 111536222 A CN111536222 A CN 111536222A CN 202010052987 A CN202010052987 A CN 202010052987A CN 111536222 A CN111536222 A CN 111536222A
Authority
CN
China
Prior art keywords
oil pump
housing
oil
pump shaft
main body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010052987.7A
Other languages
Chinese (zh)
Other versions
CN111536222B (en
Inventor
下田裕也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of CN111536222A publication Critical patent/CN111536222A/en
Application granted granted Critical
Publication of CN111536222B publication Critical patent/CN111536222B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
    • F16H57/0404—Lubricant filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0436—Pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

The invention provides a speed change device and an assembling method of the speed change device, which can prevent components assembled on a shell from falling off when the speed change device is assembled. A transmission device (1) is provided in which an oil strainer (70) and an oil pump main body (51) are fixed to a first housing, wherein the oil strainer (70) is provided with a projection (71) that projects parallel to the radial direction of an oil pump gear (62), and the oil pump gear (62) is disposed between the projection (71) and the oil pump main body (51) in the axial direction of an oil pump shaft (61).

Description

Transmission device and method for assembling transmission device
Technical Field
The present invention relates to a transmission and a method of assembling the transmission.
Background
Conventionally, the following structures are known: the engine is provided with an oil pump which sucks lubricating oil stored in an oil pan at the lower part of the engine, supplies the lubricating oil to each part of the engine, and collects the lubricating oil used for lubricating each part of the engine into the oil pan (see, for example, patent document 1).
Documents of the prior art
Patent document 1: japanese patent laid-open publication No. 2014-043120
Disclosure of Invention
Problems to be solved by the invention
When assembling the transmission, the first case and the second case, in which components such as an oil pump gear are assembled, are engaged and assembled. In this assembly, the first housing in which the components are assembled is held by being turned over so that the assembled components are positioned on the lower side with respect to the first housing, and the like, and the components such as the oil pump gear may fall off from the first housing. Further, at the time of assembly, the first housing in which the components are assembled vibrates, and therefore, the oil pump gear may be displaced or may fall off from the first housing. Therefore, the assembling property is deteriorated and the assembling method is restricted.
The invention aims to provide a speed change device and an assembling method of the speed change device, wherein components assembled on a shell are prevented from falling off when the speed change device is assembled.
Means for solving the problems
In order to solve the above problem, a transmission device (for example, a transmission device 1 described later) according to the present invention includes: a first housing (e.g., an intermediate housing 20 described later); an oil pump gear (for example, an oil pump gear 62 described later); an oil pump shaft (for example, an oil pump shaft 61 described later) having a support portion (for example, an intermediate portion 612 described later) that supports the oil pump gear, and a connection portion (for example, a connection portion 611 described later) that is connected to an oil pump (for example, an oil pump rotor 52 described later); an oil pump main body (for example, an oil pump main body 51 described later) that houses the oil pump; and an oil strainer (for example, an oil strainer 70 described later) that supplies lubricating oil to the oil pump, wherein the oil strainer and the oil pump main body are fixed to a first housing, a protruding portion (for example, a protruding portion 71 described later) that protrudes in parallel with a radial direction of the oil pump gear provided between the protruding portion and the oil pump main body in an axial direction of the oil pump shaft is provided in the oil strainer.
Thus, when the orientation (posture) of the first housing in which the oil pump shaft and the oil pump gear are assembled is changed, the oil pump gear abuts against the protruding portion, and the oil pump shaft and the oil pump gear can be prevented from dropping from the oil pump main body attached to the first housing. Therefore, deterioration in assembling property can be suppressed.
Further, preferably, the protruding portion is formed to cover a part of the oil pump gear. Thereby, the oil pump gear is disposed between the protruding portion and the oil pump main body. Therefore, the friction force of the oil pump gear can be reduced to improve fuel efficiency.
Further, it is preferable that a length (for example, a length Y described later) of the oil pump shaft in the axial direction of the connection portion with the oil pump main body be longer than a gap (for example, a width X of the gap described later) between the protrusion and the oil pump gear in the axial direction. Thus, the length of the connecting portion and the length of the gap are limited, thereby reliably preventing the shaft from falling off the oil pump main body.
Preferably, the protrusion is formed of a plate-like member parallel to a direction orthogonal to an axial direction of the oil pump shaft. This can suppress the dimension of the protrusion in the axial direction of the oil pump shaft.
Preferably, the transmission device further includes a second housing that is fitted to the first housing, the second housing includes a bearing for an oil pump shaft, the connection portion is fitted to the oil pump spline, and a portion of the oil pump shaft on a side opposite to the connection portion with the oil pump gear interposed therebetween is fitted to the bearing for the oil pump shaft.
Thus, even if the oil pump shaft is fitted to the oil pump in a structure that is easily detached, such as spline fitting, the oil pump shaft can be prevented from detaching from the oil pump. Further, when the oil pump shaft is fitted to the bearing for the oil pump shaft, the oil pump shaft can be fitted to the bearing for the oil pump shaft without considering the rotation of the oil pump shaft, and the assembly is easy.
A method of assembling a transmission according to the present invention is a method of assembling a transmission, including the steps of: after the oil pump main body is assembled to the first housing, the oil pump shaft and the oil pump gear are assembled, and then the oil filter is assembled to the first housing.
Therefore, since the assembly is performed in the order of the steps, the movement of the oil pump gear can be restricted by the protrusion provided in the oil strainer, and the oil pump shaft can be reliably prevented from coming off the oil pump main body.
Further, it is preferable that the method comprises the steps of: after assembling the oil filter to the first housing, the first housing is assembled with the second housing.
Thus, when the oil pump shaft is spline-fitted to the oil pump main body on the first housing side, the oil pump shaft can be assembled without coming off from the first housing side by the retaining structure by the protruding portion. Further, by providing the oil pump shaft bearing on the second housing side, which is the mating housing side, and fitting the oil pump shaft to the oil pump shaft bearing, the first housing can be assembled to the second housing even when the oil pump shaft must be assembled to the first housing side first. When the first housing is assembled to the second housing by turning the first housing, the first housing can be prevented from falling off (falling or shifting). Further, the fitting of the oil pump shaft and the oil pump shaft bearing is not a shape that requires phase matching for fitting, such as spline fitting, and therefore, the assembly is easy.
Effects of the invention
According to the present invention, it is possible to provide a transmission device and an assembling method of the transmission device in which components assembled to a case are prevented from falling off when the transmission device is assembled.
Drawings
Fig. 1 is a side view showing a state before an intermediate case is assembled to an M case in an assembling method of a transmission device according to an embodiment of the present invention.
Fig. 2 is a side view showing a state in which an oil pump gear and an oil filter are attached to an intermediate case of a transmission device according to an embodiment of the present invention.
Fig. 3 is a main part sectional view showing the intermediate case before the intermediate case is assembled to the M case in the assembling method of the transmission device of the embodiment of the present invention.
Description of the reference symbols
1: a speed change device; 20: a middle housing; 30: m shell; 50: an oil pump; 51: an oil pump main body; 61: an oil pump shaft; 62: an oil pump gear; 64: a bearing for an oil pump shaft; 70: an oil filter; 71: a protrusion; 611: a connecting portion; 612: an intermediate portion (support portion); x: the width of the gap; y: length.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a side view showing a state before the middle case 20 is assembled to the M case 30. Fig. 2 is a side view showing a state in which the oil pump gear 62 and the oil strainer 70 are attached to the intermediate case 20 of the transmission 1. Fig. 3 is a main part sectional view showing the intermediate case 20 before the intermediate case 20 is assembled to the M-case 30.
The transmission device 1 constitutes an automatic transmission that transmits torque of an internal combustion Engine (ENG) of a vehicle to front wheels (RWf, LWf). The transmission 1 is disposed adjacent to the internal combustion engine. The transmission device 1 includes a case 10 (an intermediate case 20 and an M case 30), the case 10 constitutes an outer wall of the transmission device 1, and the case 10 houses: a plurality of rotating shafts arranged in parallel with each other; a transmission mechanism including a rotating member such as a gear and a transmission member such as a clutch supported to be rotatable about each rotating shaft; and constituent members of the transmission device 1 including the transmission mechanism.
The housing 10 is configured such that the intermediate case 20 and the M case 30 (transmission case) are fitted and integrated.
The intermediate case 20 as a first case houses a power transmission mechanism such as a torque converter, a clutch, and a flywheel, and as shown in fig. 3, an oil pump main body 51 constituting an oil pump 50 is fixed to an inner surface of the intermediate case 20. The oil pump 50 includes: an oil pump rotor 52 supported by the oil pump main body 51 so as to be rotatable with respect to the oil pump main body 51; and a bearing 53 provided at a portion of the oil pump main body 51 facing the M-case 30 as the second case, and disposed in a coaxial positional relationship with respect to the oil pump rotor 52. In the oil pump 50, an oil pump rotor 52 is rotated by rotation of an oil pump gear 62 described later and an oil pump shaft 61 supporting the oil pump gear 62, and the oil pump 50 sucks and pressurizes lubricating oil and pressure-feeds the lubricating oil to a lubrication site of the internal combustion engine. As shown in fig. 1, when the intermediate housing 20 and the M-housing 30 are fitted and assembled, the oil pump main body 51 is fixed in a positional relationship in which it faces downward from the inner surface of the intermediate housing 20.
Further, an oil pump gear 62 and an oil pump shaft 61 that supports the oil pump gear 62 are rotatably supported by the intermediate housing 20. Specifically, one end of the oil pump shaft 61 (the upper end of the oil pump shaft 61 shown in fig. 3) penetrates the oil pump body 51 that houses the oil pump 50, and is spline-fitted to a portion of the axial center position of the oil pump rotor 52 that constitutes the oil pump 50, whereby the one end of the oil pump shaft 61 is connected to the oil pump rotor 52 and the oil pump body 51 that houses the oil pump rotor 52. The oil pump rotor 52 is fixed to one end portion of the oil pump shaft 61 so as to be rotatable integrally with the one end portion of the oil pump shaft 61. One end of the oil pump shaft 61 constitutes a connection portion 611 connected to the oil pump main body 51.
The oil pump gear 62 is penetrated by the oil pump shaft 61, and the oil pump gear 62 is press-fitted and fixed to the intermediate portion 612 of the oil pump shaft 61 so as to be rotatable integrally with the intermediate portion 612. The intermediate portion 612 of the oil pump shaft 61 constitutes a bearing portion that supports the oil pump gear 62.
An oil pump shaft bearing 64 is fixedly provided in the M case 30 by press fitting. The other end portion of the oil pump shaft 61 on the opposite side of the connection portion 611 across the oil pump gear 62 is fitted in the oil pump shaft bearing 64. More specifically, the inner race of the oil pump shaft bearing 64 is fitted to the other end portion of the oil pump shaft 61 so as to be rotatable integrally with the oil pump shaft 61. The outer race of the oil pump shaft bearing 64 is press-fitted and fixed to the M case 30. Thereby, the oil pump shaft 61 and the oil pump gear 62 are supported rotatably with respect to the casing 10 constituted by the intermediate case 20 and the M case 30. In fig. 3, for convenience of explanation, the oil pump shaft bearing 64 is illustrated at an end portion of the oil pump shaft 61 so that the position of the oil pump shaft bearing 64 with respect to the oil pump shaft 61 can be easily understood.
Further, an oil filter 70 is provided on the inner surface of the intermediate housing 20 as the first housing. The oil strainer 70 sucks and filters the lubricating oil accumulated in the bottom of an oil pan chamber, not shown, into the oil strainer 70, and supplies the oil to the oil pump 50. As shown in fig. 1 and 3, when the intermediate case 20 and the M-case 30 are fitted and assembled, the oil strainer 70 is fixed in a positional relationship extending downward from the inner surface of the intermediate case 20. In this way, when the intermediate housing 20 and the M-housing 30 are fitted together and assembled, the protrusion 71 is provided at the middle portion of the oil strainer 70 in the vertical direction, and the protrusion 71 protrudes in the direction parallel to the radial direction of the oil pump gear 62, that is, in the direction perpendicular to the axial direction of the oil pump shaft 61.
More specifically, the protruding portion 71 is formed of a plate-like member in a flat plate shape, which extends from the oil strainer 70 and has a positional relationship parallel to a direction orthogonal to the axial direction of the oil pump shaft 61. The protrusion 71 is located closer to the other end of the oil pump shaft 61 than the oil pump gear 62 in the axial direction of the oil pump shaft 61. Therefore, as shown in fig. 3, the oil pump gear 62 is located between the protruding portion 71 and the oil pump main body 51 in the axial direction of the oil pump shaft 61.
Further, as shown in fig. 2, the protruding portion 71 has a positional relationship of overlapping with a part of the oil pump gear 62 when viewed in the axial direction of the oil pump shaft 61. Therefore, as shown in fig. 2, the protrusion 71 is formed to cover a part of the oil pump gear 62 near the oil strainer 70 on the side of the M housing 30 facing the intermediate housing 20 when viewed in the axial direction of the oil pump shaft 61. Therefore, as shown in fig. 3, a part of the oil pump gear 62 near the oil strainer 70 is disposed between the protrusion 71 of the oil strainer 70 and the oil pump main body 51.
As shown in fig. 3, the length Y in the axial direction of the connection portion 611 of the oil pump shaft 61 to the oil pump rotor 52 of the oil pump main body 51 is configured to be longer than the width X of the gap between the protrusion 71 and the oil pump gear 62 in the axial direction of the oil pump shaft 61. More specifically, as shown in fig. 3, the length Y of the connection portion 611 of the oil pump shaft 61 inserted in the oil pump rotor 52 of the oil pump main body 51 protruding from the inner surface of the intermediate housing 20 is configured to be longer than the maximum value X of the width of the gap between the oil pump gear 62 and the protruding portion 71 in the axial direction of the oil pump shaft 61. Therefore, as shown in fig. 3, even when the oil pump shaft 61 is located at a position lower than the intermediate housing 20 due to the change in the orientation (posture) of the intermediate housing 20, the oil pump gear 62 abuts the protruding portion 71 before the connection portion 611 of the oil pump shaft 61 inserted into the oil pump main body 51 falls off from the oil pump rotor 52 of the oil pump main body 51, thereby preventing the connection portion 611 of the oil pump shaft 61 from falling off from the oil pump main body 51.
Next, a method of assembling the transmission 1 will be described. In the method of assembling the transmission 1, first, a step of fixing the oil pump main body 51 to the inner surface of the intermediate case 20 by bolts is performed. Next, the following steps are performed: a connection portion 611 that is one end portion of the oil pump shaft 61 is inserted into the bearing 53 of the oil pump main body 51, and the connection portion 611 of the oil pump shaft 61 is spline-fitted to the oil pump rotor 52 of the oil pump main body 51. Further, a step of fixing the oil pump shaft bearing 64 to the M-case 30 by press fitting is performed.
Next, a step of assembling the oil strainer 70 to the intermediate case 20 is performed. In this step, by assembling the oil strainer 70 at a predetermined position of the intermediate housing 20, as shown in fig. 2, the protrusion 71 is in a positional relationship to cover a part of the oil pump gear 62 close to the oil strainer 70 from the side of the M housing 30 facing the intermediate housing 20 when viewed in the axial direction of the oil pump shaft 61. As shown in fig. 3, a part of the oil pump gear 62 near the oil strainer 70 is disposed between the protrusion 71 of the oil strainer 70 and the oil pump main body 51.
Next, a step of fitting the intermediate case 20 and the M case 30 to form an integral body to form the housing 10 is performed. In this step, first, as shown in fig. 1, the inner surface of the middle housing 20, the oil strainer 70, the oil pump body 51, the oil pump shaft 61, and the like are opposed to the M housing 30 in a positional relationship in which the oil strainer 70, the oil pump body 51, and the oil pump shaft 61 are positioned on the lower side and the middle housing 20 is positioned on the upper side.
At this time, as described above, as shown in fig. 3, a part of the oil pump gear 62 is disposed between the projection 71 of the oil strainer 70 and the oil pump main body 51, and the projection 71 provided to the oil strainer 70 is present below the part of the oil pump gear 62. Further, as shown in fig. 3, since the length Y of the connecting portion 611 of the oil pump shaft 61 inserted into the oil pump rotor 52 of the oil pump main body 51 protruding from the inner surface of the intermediate housing 20 is configured to be longer than the maximum value X of the width of the gap between the oil pump gear 62 and the protruding portion 71 in the axial direction of the oil pump shaft 61, the connecting portion 611 of the oil pump shaft 61 spline-fitted to the oil pump rotor 52 is prevented from coming off from the oil pump rotor 52 and coming off from the oil pump main body 51.
Next, the intermediate case 20 and the M case 30 are relatively brought close to each other, the other end portion of the oil pump shaft 61 is fitted into the oil pump shaft bearing 64 fixed to the M case 30, the intermediate case 20 and the M case 30 are brought into contact and fitted, and the intermediate case 20 and the M case 30 are fixed by bolts to be integrated into the housing 10.
According to the present embodiment, the following effects can be obtained.
In the transmission 1 of the present embodiment, the oil strainer 70 and the oil pump main body 51 are fixed to the intermediate housing 20, the oil strainer 70 is provided with a projection 71 that projects parallel to the radial direction of the oil pump gear 62, and the oil pump gear 62 is provided between the projection 71 and the oil pump main body 51 in the axial direction of the oil pump shaft 61.
Accordingly, when the orientation (posture) of the intermediate housing 20 in which the oil pump shaft 61 and the oil pump gear 62 are assembled is changed, the oil pump gear 62 abuts against the projection 71, and the oil pump shaft 61 and the oil pump gear 62 can be prevented from coming off from the oil pump main body 51 attached to the intermediate housing 20. Therefore, deterioration in assembling property can be suppressed.
In the transmission device 1 of the present embodiment, the protruding portion 71 is formed to cover a part of the oil pump gear 62. Thereby, the oil pump gear 62 is disposed between the protruding portion 71 and the oil pump main body 51. Therefore, the friction force of the oil pump gear can be reduced to improve fuel efficiency.
Further, in the transmission device 1 of the present embodiment, the length Y in the axial direction of the connecting portion 611 of the oil pump shaft 61 that is connected to the oil pump main body 51 is longer than the width X of the gap in the axial direction between the protruding portion 71 and the oil pump gear 62. Thus, by limiting the length Y of the connecting portion 611 and the width X of the gap, the shaft can be reliably prevented from falling off the oil pump main body 51.
In the transmission 1 of the present embodiment, the protruding portion 71 is formed of a plate-like member parallel to the direction orthogonal to the axial direction of the oil pump shaft 61. This makes it possible to make the projection 71 thin, and to suppress the dimension of the projection 71 in the axial direction of the oil pump shaft 61.
The transmission 1 of the present embodiment further includes an M-case as a second case that is fitted to the first case, the M-case 30 includes an oil pump shaft bearing 64, the connection portion 611 is fitted to the oil pump spline, and a portion of the oil pump shaft 61 on the opposite side of the connection portion 611 with respect to the oil pump gear 62 is fitted to the oil pump shaft bearing 64.
Thus, even if the oil pump shaft 61 is fitted to the oil pump 50 in a structure that is easily detached, such as spline fitting, the oil pump shaft 61 can be prevented from detaching from the oil pump 50. Further, when the oil pump shaft 61 is fitted to the oil pump shaft bearing 64, the oil pump shaft bearing 64 can be fitted regardless of the rotation of the oil pump shaft 61, and the assembly is easy.
The method of assembling the transmission device 1 according to the present embodiment includes the steps of: after the oil pump main body 51 is assembled to the first housing, the oil pump shaft 61 and the oil pump gear 62 are assembled, and then the oil strainer 70 is assembled to the first housing. Accordingly, since the assembly is performed in the order of the steps, the movement of the oil pump gear 62 can be restricted by the protrusion 71 provided in the oil strainer 70, and the oil pump shaft 61 can be reliably prevented from coming off the oil pump main body 51.
The method of assembling the transmission device 1 according to the present embodiment includes the steps of: after the oil filter 70 is assembled to the intermediate case 20, the intermediate case 20 is assembled to the M-case 30. Thus, when the oil pump shaft 61 is spline-fitted to the oil pump main body 51 on the intermediate housing 20 side, the oil pump shaft 61 can be assembled without coming off the intermediate housing 20 side due to the retaining structure by the projection 71. Further, by providing the oil pump shaft bearing 64 on the M-casing 30 side, which is the mating casing side, and fitting the oil pump shaft 61 to the oil pump shaft bearing 64, the intermediate casing 20 can be assembled to the M-casing 30 even when the oil pump shaft must be assembled first on the intermediate casing 20 side. When the intermediate housing is assembled to the M housing side while being turned, the intermediate housing can be prevented from falling off (falling or shifting). Further, the fitting of the oil pump shaft 61 and the oil pump shaft bearing 64 is not a shape that requires phase matching to be fitted, such as spline fitting, and therefore assembly is easy.
The present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within a range that can achieve the object of the present invention are also included in the present invention.
For example, the structure of the protruding portion is not limited to the structure of the protruding portion 71 in the present embodiment. That is, the protruding portion is not limited to being formed of a flat plate-like member. The protrusion may be configured to cover a part of a surface of the oil pump gear opposite to the surface facing the oil pump main body.
The structure of each part of the transmission is not limited to the structure of each part of the transmission 1 in the present embodiment.

Claims (7)

1. A transmission device is provided with: a first housing; an oil pump gear; an oil pump shaft having a support portion supporting the oil pump gear and a connection portion connected to an oil pump; an oil pump main body that houses the oil pump; and an oil filter for supplying lubricating oil to the oil pump,
the oil filter and the oil pump main body are fixed to a first housing,
a protruding portion that protrudes in parallel with the radial direction of the oil pump gear is provided in the oil filter,
the oil pump gear is disposed between the protrusion and the oil pump main body in an axial direction of the oil pump shaft.
2. The transmission according to claim 1,
the protrusion is formed to cover a portion of the oil pump gear.
3. The transmission according to claim 1 or 2,
the length of the oil pump shaft in the axial direction of the connecting portion connected to the oil pump main body is longer than the clearance between the protruding portion and the oil pump gear in the axial direction.
4. The transmission according to any one of claims 1 to 3,
the protrusion is constituted by a plate-like member that is parallel to a direction orthogonal to the axial direction of the oil pump shaft.
5. The transmission according to any one of claims 1 to 4,
the transmission device further includes a second housing that is fitted to the first housing,
the second housing is provided with a bearing for an oil pump shaft,
the connecting part is embedded with the oil pump spline,
a portion of the oil pump shaft on a side opposite to the connection portion across the oil pump gear is fitted in the oil pump shaft bearing.
6. A method of assembling a transmission according to claim 5, wherein,
the method for assembling the transmission device includes the following steps: after the oil pump main body is assembled to the first housing, the oil pump shaft and the oil pump gear are assembled, and then the oil filter is assembled to the first housing.
7. The method of assembling a transmission according to claim 6,
the method for assembling the transmission device includes the following steps: after assembling the oil filter to the first housing, the first housing is assembled with the second housing.
CN202010052987.7A 2019-02-06 2020-01-17 Transmission device and method for assembling transmission device Active CN111536222B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019019726A JP6803416B2 (en) 2019-02-06 2019-02-06 How to assemble the transmission and transmission
JP2019-019726 2019-02-06

Publications (2)

Publication Number Publication Date
CN111536222A true CN111536222A (en) 2020-08-14
CN111536222B CN111536222B (en) 2021-07-23

Family

ID=71979989

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010052987.7A Active CN111536222B (en) 2019-02-06 2020-01-17 Transmission device and method for assembling transmission device

Country Status (2)

Country Link
JP (1) JP6803416B2 (en)
CN (1) CN111536222B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279391A (en) * 1993-02-03 1994-01-18 Eaton Corporation Dry sump mechanical transmission
JP2007090537A (en) * 2005-09-27 2007-04-12 Seiko Epson Corp Motor flange, recording device and liquid jetting device
CN101042181A (en) * 2006-03-24 2007-09-26 捷特科株式会社 Oil pump structure of transmission
CN201739484U (en) * 2010-08-23 2011-02-09 太原轨道交通装备有限责任公司 Lubricating system for gearbox of engineering vehicle
JP2012013166A (en) * 2010-07-01 2012-01-19 Toyota Motor Corp Vehicular transmission device
JP2014043120A (en) * 2012-08-24 2014-03-13 Honda Motor Co Ltd Hybrid vehicle driving device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279391A (en) * 1993-02-03 1994-01-18 Eaton Corporation Dry sump mechanical transmission
JP2007090537A (en) * 2005-09-27 2007-04-12 Seiko Epson Corp Motor flange, recording device and liquid jetting device
CN101042181A (en) * 2006-03-24 2007-09-26 捷特科株式会社 Oil pump structure of transmission
JP2012013166A (en) * 2010-07-01 2012-01-19 Toyota Motor Corp Vehicular transmission device
CN201739484U (en) * 2010-08-23 2011-02-09 太原轨道交通装备有限责任公司 Lubricating system for gearbox of engineering vehicle
JP2014043120A (en) * 2012-08-24 2014-03-13 Honda Motor Co Ltd Hybrid vehicle driving device

Also Published As

Publication number Publication date
CN111536222B (en) 2021-07-23
JP2020125837A (en) 2020-08-20
JP6803416B2 (en) 2020-12-23

Similar Documents

Publication Publication Date Title
EP1910668B1 (en) Startup torque transmitting mechanism of an internal combustion engine
CN102762824B (en) Electrical camshaft phaser with energy recovery
US7290995B2 (en) Tandem type trochoid pump and method of assembling the same
KR101369836B1 (en) Engine starting system with one-way clutch
EP2574745A1 (en) Harmonic drive camshaft phaser with a harmonic drive ring to prevent ball cage deflection.
EP1598576A1 (en) Apparatus for driving an oil pump for automatic transmission
JP2008082186A (en) Torque transmission device for starting engine
EP2351942A1 (en) Dry clutch
EP1748181B1 (en) Startup torque transmitting mechanism of an internal combustion engine
JP2016529450A (en) Thrust washer
KR20110117665A (en) Tapered retaining ring to reduce bearing race movement
CN111536222B (en) Transmission device and method for assembling transmission device
EP2776729B1 (en) Torque transfer unit for an engine starting system
CN101427021B (en) Starter for internal combustion engine
CN114746661A (en) Roller flywheel unit for vehicle
JP2010007484A (en) Internal combustion engine provided with balance shaft
CN102220928B (en) Engine starter mechanism using one way clutch
US20190017588A1 (en) Oil pump driving device
JP4590004B1 (en) Power transmission device for engine start
JP6409673B2 (en) Fuel pump
JP6316080B2 (en) Starter
JPH084791A (en) One-way clutch
CN107339317B (en) Balance shaft assembly
EP2642126B1 (en) Oil pump device
CN218953428U (en) Engine with a motor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant