CN202628989U - Connecting structure of automobile differential mechanism and parking ratchet wheel - Google Patents
Connecting structure of automobile differential mechanism and parking ratchet wheel Download PDFInfo
- Publication number
- CN202628989U CN202628989U CN 201220186897 CN201220186897U CN202628989U CN 202628989 U CN202628989 U CN 202628989U CN 201220186897 CN201220186897 CN 201220186897 CN 201220186897 U CN201220186897 U CN 201220186897U CN 202628989 U CN202628989 U CN 202628989U
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- parking ratchet
- differential mechanism
- differential
- gear ring
- automobile
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Abstract
The utility model provides a connecting structure of an automobile differential mechanism and a parking ratchet wheel and belongs to the mechanical technical field. The connecting structure of the automobile differential mechanism and the parking ratchet wheel solves the technical problems that a plurality of parts are required in installation of an existing connecting structure of the automobile differential mechanism and the parking ratchet wheel so as to enable the installation to be complex. According to the connecting structure of the automobile differential mechanism and the parking ratchet wheel, the differential mechanism comprises a shell of the differential mechanism and a gear ring of the differential mechanism, the parking ratchet wheel and the differential mechanism are integrated, the gear ring of the differential mechanism is sleeved on the shell of the differential mechanism, and the gear ring of the differential mechanism and the parking ratchet wheel are fixed on the shell of the differential mechanism through a fixing structure. The connecting structure of the automobile differential mechanism and the parking ratchet wheel is simple in structure, low in manufacturing cost, high in installation efficiency, and capable of eliminating possibility of axial extrusion of the parking ratchet wheel and improving safety of a full automobile.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of automobile differential, particularly plants the linkage structure of automobile differential and Parking ratchet.
Background technique
At present; Differential casing is generally spline with the Placement of Parking ratchet and is connected; The spline fitted type is an interference fit, is that the Parking ratchet can bear certain axial force, because the differential casing material is generally spheroidal graphite cast iron; Hardness is (170～230) HB, and the hardness of Parking ratchet is (58～62) HRC.Parking ratchet hardness is higher than differential casing hardness; The internal spline of Parking ratchet is prone to the external splines scratch of differential casing during assembling; Therefore cooperate the type designing requirement of possibly failing to reach; The Parking ratchet became flexible with being connected of differential casing probably, made the Parking ratchet that the danger of axially deviating from arranged, and caused the Parking ratchet to pivot easily.Simultaneously, conventional construction need be processed spline on Parking ratchet and differential casing, increased manufacturing process, makes cost of production improve.
The linkage structure [notice of authorization CN201785870U] of disclosed a kind of differential casing of Chinese patent document and Parking ratchet; Comprise differential casing, differential mechanism gear ring and Parking ratchet; The differential mechanism gear ring is installed on the differential casing; Differential casing links to each other with the Parking ratchet; Be evenly distributed with bolt hole on the described Parking ratchet circumference, on differential casing and differential mechanism gear ring, have and the corresponding unthreaded hole of bolt hole, differential casing, differential mechanism gear ring and Parking ratchet three pass through bolted on connection.Through bolt differential casing, differential mechanism gear ring and Parking ratchet are fixed; Avoided the use spline to connect the situation that makes that Parking ratchet and differential casing become flexible; But the Parking ratchet links to each other with differential casing respectively with the differential mechanism gear ring and re-uses bolt; Increased greatly needed part is installed, made that installation is complicated, manufacture cost increases.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed the linkage structure of a kind of automobile differential and Parking ratchet, and this linkage structure has the characteristics more convenient, that connectivity robustness is higher of making.
The purpose of the utility model can realize through following technical proposal: the linkage structure of a kind of automobile differential and Parking ratchet; Described differential mechanism comprises differential casing and differential mechanism gear ring; It is characterized in that; Described Parking ratchet and differential mechanism gear ring are integral structure, and described differential mechanism gear ring is set on the differential casing, and through fixed structure differential mechanism gear ring and Parking ratchet are fixed on the differential casing.
Differential mechanism also comprise two semiaxis, with fixing two differential gears and two planetary pinions of semiaxis; Two planetary pinions connect through planet pin; Planet pin is fixed through locating stud and differential casing; Planetary pinion and differential gear often mesh, and also are provided with park pawl on the vehicle body, and the Parking ratchet can be meshed with this park pawl.During automobile runs, power is delivered to differential mechanism through the differential mechanism gear ring from speed changer, drives differential casing and rotates; The drive planetary pinion rotates; Planetary pinion drives differential gear and rotates, and the semiaxis that differential gear drives separately rotates, and outputs power on the tire.During automobile parking, the pulling parking brake, park pawl and Parking ratchet engaged, differential casing and differential mechanism gear ring all can not rotate like this, play the effect of Parking.Parking ratchet and differential mechanism gear ring are that integral structure is easily manufactured, make easy for installation; Fixed structure has been eliminated the possibility that Parking ratchet and differential mechanism gear ring are axially deviate from, the Security that has improved car load.
In the linkage structure of automobile differential and Parking ratchet of the above; Described fixed structure comprises the fixed hole that is opened on the housing, is opened in the mounting hole and the bolt that are complementary with fixed hole on Parking ratchet and the differential mechanism gear ring, and described bolt is located in fixed hole and the mounting hole.Offer internal thread on the mounting hole inwall, bolt passes internal thread in fixed hole and the mounting hole and is threaded and makes Parking ratchet and differential mechanism gear ring be fixed on the housing, and it is possible to what deviate to have eliminated the Parking ratchet shaft, the Security that has improved car load.
As other a kind of situation, described fixed structure comprises the fixed hole that is opened on the housing, is opened in the mounting hole and the locating stud that are complementary with fixed hole on Parking ratchet and the differential mechanism gear ring, and described locating stud is located in fixed hole and the mounting hole.Make Parking ratchet and differential mechanism gear ring be fixed on the housing through locating stud, eliminated the Parking ratchet shaft to the possibility of deviating from, the Security that has improved car load.
In the linkage structure of automobile differential and Parking ratchet of the above, have the bulge loop of corresponding its body protrusion on the described housing, above-mentioned Parking ratchet is resisted against on this bulge loop.It is more stable that bulge loop makes that the Parking ratchet is fixed on the housing, is difficult for axially deviating from.
In the linkage structure of automobile differential and Parking ratchet of the above, the quantity of described fixed hole is at least two.The corresponding setting of mounting hole quantity and positioning hole, because the working environment of differential mechanism is relatively poor relatively, it is more firm that two or more fixed holes make that Parking ratchet and differential mechanism gear ring are fixed on housing.
In the linkage structure of automobile differential and Parking ratchet of the above, described fixed hole circumferentially evenly is opened on the bulge loop of housing.
In the linkage structure of automobile differential and Parking ratchet of the above, described Parking ratchet and differential mechanism gear ring are one-body molded through the mode of forging molding.Low through the one-body molded cost of the mode of forging molding, efficient is high, makes simple in structure between Parking ratchet and the differential mechanism gear ring.
As other a kind of situation, in the linkage structure of automobile differential and Parking ratchet of the above, described Parking ratchet and differential mechanism gear ring are one-body molded through the mode of moulding by casting.Low through the one-body molded cost of the mode of moulding by casting, efficient is high, makes simple in structure between Parking ratchet and the differential mechanism gear ring.
In the linkage structure of automobile differential and Parking ratchet of the above, also be provided with pad between described bolt and the bulge loop.Pad has increased the frictional force between bolt and housing, avoids bolt to occur becoming flexible in the long-term back of using.
Compared with prior art, this automobile differential has the following advantages with the linkage structure of Parking ratchet:
1, Parking ratchet and differential mechanism gear ring is one-body molded, make simple in structurely, processing cost reduces, and installation efficiency is high.
2, through bolt or locating stud Parking ratchet and differential mechanism gear ring are fixed on the housing, have eliminated the Parking ratchet shaft to the possibility of deviating from, the Security that has improved car load.
3, on housing, design bulge loop, it is easier for installation to make that Parking ratchet and differential mechanism gear ring are fixed on the housing, has improved the steadiness of installing simultaneously.
Description of drawings
Fig. 1 is the cross-sectional view of the linkage structure of this automobile differential and Parking ratchet.
Among the figure, 1, housing; 1a, bulge loop; 2, Parking ratchet; 3, differential mechanism gear ring; 4, fixed hole; 5, mounting hole; 6, locating stud; 7, bolt; 8, pad; 9, semiaxis; 10, differential gear; 11, planetary pinion; 12, planet pin.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
Embodiment one
As shown in Figure 1; The linkage structure of a kind of automobile differential and Parking ratchet; Differential mechanism comprises differential casing 1 and differential mechanism gear ring 3, and differential mechanism also comprises two semiaxis 9, connects through planet pin 12 with semiaxis 9 fixing two differential gears 10 and 11, two planetary pinions of two planetary pinions 11; Planet pin 12 is fixing with differential casing 1 through locating stud 6; Planetary pinion 11 often meshes with differential gear 10, also is provided with park pawl on the vehicle body, and Parking ratchet 2 can be meshed with this park pawl.
Differential mechanism gear ring 3 is set on the differential casing 1, and through fixed structure differential mechanism gear ring 3 and Parking ratchet 2 is fixed on the differential casing 1.Fixed structure comprises the fixed hole 4 that is opened on the housing 1; The bulge loop 1a that has corresponding its body protrusion on the housing 1; Fixed hole 4 circumferentially evenly is opened on the bulge loop 1a of housing 1, and the quantity of fixed hole 4 is at least two, and above-mentioned Parking ratchet 2 is resisted against on this bulge loop 1a.It is more stable that bulge loop 1a makes that Parking ratchet 2 is fixed on the housing 1, is difficult for axially deviating from.Be opened in the mounting hole 5 and bolt 7 that are complementary with fixed hole 4 on Parking ratchet 2 and the differential mechanism gear ring 3; Mounting hole 5 quantity and the corresponding setting of positioning hole; Because the working environment of differential mechanism is relatively poor relatively, it is more firm that two or more fixed holes 4 make that Parking ratchet 2 and differential mechanism gear ring 3 are fixed on housing 1.Bolt 7 is located in fixed hole 4 and the mounting hole 5.Offer internal thread on mounting hole 5 inwalls, bolt 7 passes internal threads in fixed hole 4 and the mounting hole 5 and is threaded and makes Parking ratchet 2 and differential mechanism gear ring 3 be fixed on the housing 1, has eliminated the possibility that Parking ratchet 2 is axially deviate from, the Security that has improved car load.Also be provided with pad 8 between bolt 7 and the bulge loop 1a.Pad 8 has increased the frictional force of 1 of bolt 7 and housing, and to use the back to occur loosening long-term to avoid bolt 7.
During automobile runs, power is delivered to differential mechanism through differential mechanism gear ring 3 from speed changer, drives differential casing 1 and rotates; Driving planetary pinion 11 rotates; Planetary pinion 11 drives differential gear 10 and rotates, and the semiaxis 9 that differential gear 10 drives separately rotates, and outputs power on the tire.During automobile parking, the pulling parking brake, park pawl and 2 engagements of Parking ratchet, differential casing 1 all can not rotate with differential mechanism gear ring 3 like this, plays the effect of Parking.Parking ratchet 2 is that integral structure is easily manufactured with differential mechanism gear ring 3, makes easy for installation; The possibility of having utilized bolt 7 to make Parking ratchet 2 and differential mechanism gear ring 3 be fixed on to have eliminated on the housing 1 Parking ratchet 2 and differential mechanism gear ring 3 axially to deviate from, the Security that has improved car load.
Embodiment two
Content in the present embodiment two roughly with embodiment one in same content; The Parking ratchet 2 that different is among the embodiment one is one-body molded through the mode of forging molding with differential mechanism gear ring 3, and what adopt in the present embodiment two is that Parking ratchet 2 is one-body molded through the mode of moulding by casting with differential mechanism gear ring 3.Low through the one-body molded cost of the mode of moulding by casting, efficient is high, makes simple in structure between Parking ratchet 2 and the differential mechanism gear ring 3.
Embodiment three
Content in the present embodiment three roughly with embodiment one in same content; The fixed structure that different is among the embodiment one comprises the fixed hole 4 that is opened on the housing 1, is opened in the mounting hole 5 and the bolt 7 that are complementary with fixed hole 4 on Parking ratchet 2 and the differential mechanism gear ring 3, and bolt 7 is located in fixed hole 4 and the mounting hole 5.What adopt in the present embodiment three is that fixed structure comprises the fixed hole 4 that is opened on the housing 1, is opened in the mounting hole 5 and the locating stud 6 that are complementary with fixed hole 4 on Parking ratchet 2 and the differential mechanism gear ring 3, and locating stud 6 is located in fixed hole 4 and the mounting hole 5.Make Parking ratchet 2 and differential mechanism gear ring 3 be fixed on the housing 1 through locating stud 6, eliminated the possibility that Parking ratchet 2 is axially deviate from, the Security that has improved car load.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used housing 1 morely; Bulge loop 1a; Parking ratchet 2; Differential mechanism gear ring 3; Fixed hole 4; Mounting hole 5; Locating stud 6; Bolt 7; Pad 8; Semiaxis 9; Differential gear 10; Planetary pinion 11; Planet pin 12 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (9)
1. the linkage structure of automobile differential and Parking ratchet; Described differential mechanism comprises differential casing (1) and differential mechanism gear ring (3); It is characterized in that; Described Parking ratchet (2) is an integral structure with differential mechanism gear ring (3), and described differential mechanism gear ring (3) is set on the differential casing (1), and through fixed structure differential mechanism gear ring (3) and Parking ratchet (2) is fixed on the differential casing (1).
2. the linkage structure of automobile differential according to claim 1 and Parking ratchet; It is characterized in that; Described fixed structure comprises the fixed hole (4) that is opened on the housing (1), be opened in Parking ratchet (2) and differential mechanism gear ring (3) is gone up and fixed hole (4) is complementary mounting hole (5) and bolt (7), and described bolt (7) is located in fixed hole (4) and the mounting hole (5).
3. the linkage structure of automobile differential according to claim 1 and Parking ratchet; It is characterized in that; Described fixed structure comprises the fixed hole (4) that is opened on the housing (1), be opened in Parking ratchet (2) and differential mechanism gear ring (3) is gone up and fixed hole (4) is complementary mounting hole (5) and locating stud (6), and described locating stud (6) is located in fixed hole (4) and the mounting hole (5).
4. according to the linkage structure of claim 1 or 2 or 3 described automobile differentials and Parking ratchet, it is characterized in that having the bulge loop (1a) of corresponding its body protrusion on the described housing (1), above-mentioned Parking ratchet (2) is resisted against on this bulge loop (1a).
5. the linkage structure of automobile differential according to claim 4 and Parking ratchet is characterized in that, the quantity of described fixed hole (4) is at least two.
6. the linkage structure of automobile differential according to claim 5 and Parking ratchet is characterized in that, described fixed hole (4) circumferentially evenly is opened on the bulge loop (1a) of housing (1).
7. according to the linkage structure of claim 1 or 2 or 3 described automobile differentials and Parking ratchet, it is characterized in that described Parking ratchet (2) and differential mechanism gear ring (3) are one-body molded through the mode of forging molding.
8. according to the linkage structure of claim 1 or 2 or 3 described automobile differentials and Parking ratchet, it is characterized in that described Parking ratchet (2) and differential mechanism gear ring (3) are one-body molded through the mode of moulding by casting.
9. the linkage structure of automobile differential according to claim 2 and Parking ratchet is characterized in that, also is provided with pad (8) between described bolt (7) and the bulge loop (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186897 CN202628989U (en) | 2012-04-27 | 2012-04-27 | Connecting structure of automobile differential mechanism and parking ratchet wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186897 CN202628989U (en) | 2012-04-27 | 2012-04-27 | Connecting structure of automobile differential mechanism and parking ratchet wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628989U true CN202628989U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220186897 Expired - Lifetime CN202628989U (en) | 2012-04-27 | 2012-04-27 | Connecting structure of automobile differential mechanism and parking ratchet wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628989U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196998A (en) * | 2014-08-27 | 2014-12-10 | 盛瑞传动股份有限公司 | Automobile and automatic gearbox transmission mechanism thereof |
| CN105966235A (en) * | 2015-12-31 | 2016-09-28 | 比亚迪股份有限公司 | Electric drive axle assembly and vehicle with electric drive axle assembly |
| CN118640266A (en) * | 2024-08-16 | 2024-09-13 | 江苏御传新能源科技有限公司 | Speed reducer with parking and differential locking functions and new energy vehicle |
-
2012
- 2012-04-27 CN CN 201220186897 patent/CN202628989U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196998A (en) * | 2014-08-27 | 2014-12-10 | 盛瑞传动股份有限公司 | Automobile and automatic gearbox transmission mechanism thereof |
| CN105966235A (en) * | 2015-12-31 | 2016-09-28 | 比亚迪股份有限公司 | Electric drive axle assembly and vehicle with electric drive axle assembly |
| CN105966235B (en) * | 2015-12-31 | 2018-02-09 | 比亚迪股份有限公司 | Electric drive axle assembly and the vehicle with the electric drive axle assembly |
| CN118640266A (en) * | 2024-08-16 | 2024-09-13 | 江苏御传新能源科技有限公司 | Speed reducer with parking and differential locking functions and new energy vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Jili Speed Variator Co., Ltd. Assignor: Zhejiang Geely Automobile Research Institute Co., Ltd. Hangzhou branch|Zhejiang Geely Automobile Research Institute Co., Ltd.|Zhejiang Geely Holding Group Company Limited Contract record no.: 2014330000125 Denomination of utility model: Connecting structure of automobile differential mechanism and parking ratchet wheel Granted publication date: 20121226 License type: Exclusive License Record date: 20140505 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |