CN204878587U - Differential mechanism assembly - Google Patents

Differential mechanism assembly Download PDF

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Publication number
CN204878587U
CN204878587U CN201520647786.6U CN201520647786U CN204878587U CN 204878587 U CN204878587 U CN 204878587U CN 201520647786 U CN201520647786 U CN 201520647786U CN 204878587 U CN204878587 U CN 204878587U
Authority
CN
China
Prior art keywords
differential
spiral bevel
bevel gear
inner chamber
differential casing
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.)
Expired - Fee Related
Application number
CN201520647786.6U
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Chinese (zh)
Inventor
钟华
钟川
高如富
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.)
Chongqing Zhonghua Machinery Co Ltd
Original Assignee
Chongqing Zhonghua Machinery 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 Chongqing Zhonghua Machinery Co Ltd filed Critical Chongqing Zhonghua Machinery Co Ltd
Priority to CN201520647786.6U priority Critical patent/CN204878587U/en
Application granted granted Critical
Publication of CN204878587U publication Critical patent/CN204878587U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a differential mechanism assembly, including differential mechanism casing (1), planetary gear axle (2), spiral bevel gear (3), planetary gear (4) and differential side gear (5), integrative casting shaping is adopted in differential mechanism casing (1), middle part at differential mechanism casing (1) is provided with the sphere inner chamber, it has the straight oil groove (1b) of longitudinal extension to distribute on halfshaft hole (1a) the inner wall, spiral bevel gear (3) suit is close to the one side of planetary gear axle (2) outside differential mechanism casing (1), and pass through the fix with screw on the spiral bevel gear setting circle, the both ends of planetary gear axle (2) are supported on the inner wall in spiral bevel gear (3), on differential mechanism casing (1) outer wall, just to the hookup location department of sphere inner chamber with halfshaft hole (1a), be provided with a pair of bearing and dismantle the scarce groove (1c) of centre gripping to axis bilateral symmetry at halfshaft hole (1a) sets up. Small, compact structure, the manufacturing is convenient, the quality is reliable to make things convenient for the dismantlement of bearing.

Description

Differential assembly
Technical field
The utility model relates to a kind of differential assembly, belongs to mechanical structure technical field.
Background technique
Differential assembly is assembled by differential casing, planetary pinion, differential gear, spiral bevel gear and planet pin.Differential casing serves as planetary wheel carrier, and planetary pinion, differential gear and planet pin are arranged in poor shell.Differential casing adopts integrally casting shaping usually, inner chamber is provided with for holding planetary pinion and differential gear at the middle part of differential casing, two of differential casing is provided with half axis hole that communicates with inner chamber for installing semiaxis, differential casing is provided with the planetary gear shaft hole of lateral direction penetrating inner chamber for installing planet pin, the outer wall of differential casing horizontally outward extends to form spiral bevel gear setting circle for installing fixing spiral bevel gear.
The subject matter that existing structure exists is: (1) inner chamber is curved surface, and holding space is little, and the overall dimensions of difference shell is higher; (2) for preventing planet pin from exiting planetary gear shaft hole, usually also need to wear spring bolt for fixing planet pin on differential casing; (3) half shaft hole inner walls are provided with helical oil groove, must be added by machine and form, add one technique; (4) be set with bearing outside the two ends of differential casing, when the external diameter of bearing is too small, extracting tool cannot reach between the spherical outer wall section of differential casing and bearing termination, dismantles very difficult.
Model utility content
Of the present utility modelly aim to provide that a kind of volume is little, the differential assembly of compact structure, easily manufactured, reliable in quality, and facilitate the dismounting of bearing.
For this reason, the technological scheme that the utility model adopts is: a kind of differential assembly, comprise differential casing, planet pin, spiral bevel gear, planetary pinion and differential gear, described differential casing adopts integrally casting shaping, the middle part of differential casing is provided with sphere inner chamber, described planetary pinion and differential gear are arranged in sphere inner chamber, two of difference shell is provided with half axis hole communicated with sphere inner chamber, described half shaft hole inner wall is distributed with the straight oil groove of longitudinal extension, differential casing is provided with the planetary gear shaft hole of lateral direction penetrating sphere inner chamber, described planet pin is arranged in planetary gear shaft hole, planetary pinion is sleeved on planet pin, and planetary pinion engages with differential gear, the outer wall of differential casing horizontally outward extends to form spiral bevel gear setting circle, described spiral bevel gear is sleeved on the external side near planet pin of differential carrier, and be fixed by screws on spiral bevel gear setting circle, the two ends of described planet pin are against on the inwall of spiral bevel gear, on described differential casing outer wall, just to the link position place of sphere inner chamber and half axis hole, be provided with pair of bearings dismounting clamping short slot, and arranging in the axis bilateral symmetry of half axis hole.
The beneficial effects of the utility model:
(1) sphere inner chamber can increase the volume of inner chamber, and the external frame of planetary pinion, differential gear mates with sphere inner chamber, reduces the whole height of difference shell, makes overall structure more compact;
(2) two ends of planet pin are against on the inwall of spiral bevel gear, prevent planet pin from moving axially by spiral bevel gear, do not need to arrange spring bolt in addition and fix;
(3) half shaft hole inner walls are provided with straight oil groove, are formed in casting process, eliminate one machining sequence;
(4) on differential casing outer wall, just to the link position place of sphere inner chamber and half axis hole, set up pair of bearings dismounting clamping short slot, the bare terminal end that vacating space is used for bearing extractor is stretching into, and greatly facilitates the dismounting of bearing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of differential casing in Fig. 1.
Fig. 3 is the left view of Fig. 2.
Embodiment
Below by embodiment also by reference to the accompanying drawings, the utility model is described in further detail:
Differential assembly as shown in Figure 1, forms primarily of differential casing 1, planet pin 2, spiral bevel gear 3, planetary pinion 4 and differential gear 5.
Differential casing 1 adopts integrally casting shaping, the middle part of differential casing 1 is provided with sphere inner chamber, planetary pinion 4 and differential gear 5 are arranged in sphere inner chamber, two of difference shell 1 is provided with the half axis hole 1a that communicates with sphere inner chamber for installing semiaxis, differential mechanism is to while the semiaxis transferring power of both sides, allow both sides semiaxis to rotate with different rotating speeds, meet two sidecar wheels and make Unequal distance traveling with the form of pure rolling as far as possible, reduce the friction on tire and ground.
Half axis hole 1a inwall is distributed with the straight oil groove 1b of longitudinal extension.Preferably, each half axis hole 2 inwall is evenly equipped with three straight oil groove 1b, but is not limited to three.
Differential casing 1 is provided with the planetary gear shaft hole of lateral direction penetrating sphere inner chamber, planet pin 2 is arranged in planetary gear shaft hole, planetary pinion 4 is sleeved on planet pin 2, two planetary pinions are sleeved on planet pin relatively, and planetary pinion 4 engages with differential gear 5, the outer wall of differential casing 1 horizontally outward extends to form spiral bevel gear setting circle, spiral bevel gear 3 is sleeved on the outer side near planet pin 2 of differential casing 1, and be fixed by screws on spiral bevel gear setting circle, spiral bevel gear 3 drives differential casing 1 to rotate together, spiral bevel gear 3 is connected with the power input shaft of differential mechanism.The two ends of planet pin 2 are against on the inwall of spiral bevel gear 3, exit in planetary gear shaft hole to prevent planet pin 2.
Shown in composition graphs 1-Fig. 3, on differential casing 1 outer wall, just to the link position place of sphere inner chamber and half axis hole 1a, be provided with pair of bearings dismounting clamping short slot 1c, and arranging in the axis bilateral symmetry of half axis hole 1a.

Claims (2)

1. a differential assembly, comprise differential casing (1), planet pin (2), spiral bevel gear (3), planetary pinion (4) and differential gear (5), it is characterized in that: described differential casing (1) adopts integrally casting shaping, the middle part of differential casing (1) is provided with sphere inner chamber, described planetary pinion (4) and differential gear (5) are arranged in sphere inner chamber, two of difference shell (1) is provided with half axis hole (1a) communicated with sphere inner chamber, described half axis hole (1a) inwall is distributed with the straight oil groove (1b) of longitudinal extension, differential casing (1) is provided with the planetary gear shaft hole of lateral direction penetrating sphere inner chamber, described planet pin (2) is arranged in planetary gear shaft hole, planetary pinion (4) is sleeved on planet pin (2), and planetary pinion (4) engages with differential gear (5), the outer wall of differential casing (1) horizontally outward extends to form spiral bevel gear setting circle, described spiral bevel gear (3) is sleeved on differential casing (1) outward near the side of planet pin (2), and be fixed by screws on spiral bevel gear setting circle, the two ends of described planet pin (2) are against on the inwall of spiral bevel gear (3), on described differential casing (1) outer wall, just to the link position place of sphere inner chamber and half axis hole (1a), be provided with pair of bearings dismounting clamping short slot (1c), and arrange in the axis bilateral symmetry of half axis hole (1a).
2. differential assembly according to claim 1, is characterized in that: each described half axis hole (2) inwall is evenly equipped with three straight oil grooves (1b).
CN201520647786.6U 2015-08-26 2015-08-26 Differential mechanism assembly Expired - Fee Related CN204878587U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520647786.6U CN204878587U (en) 2015-08-26 2015-08-26 Differential mechanism assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520647786.6U CN204878587U (en) 2015-08-26 2015-08-26 Differential mechanism assembly

Publications (1)

Publication Number Publication Date
CN204878587U true CN204878587U (en) 2015-12-16

Family

ID=54822962

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520647786.6U Expired - Fee Related CN204878587U (en) 2015-08-26 2015-08-26 Differential mechanism assembly

Country Status (1)

Country Link
CN (1) CN204878587U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151216

Termination date: 20160826