CN207364229U

CN207364229U - A kind of differential gear

Info

Publication number: CN207364229U
Application number: CN201721449681.5U
Authority: CN
Inventors: 吴兆平
Original assignee: QIJIANG COUNTY BRIDGE BOX GEAR Co Ltd
Current assignee: QIJIANG COUNTY BRIDGE BOX GEAR Co Ltd
Priority date: 2017-11-03
Filing date: 2017-11-03
Publication date: 2018-05-15
Anticipated expiration: 2027-11-03

Abstract

The utility model discloses a kind of differential gear, including external gear and internal gear, internal gear is installed on the inside of the external gear, the lumen circumference surface of the external gear is equipped with circular trough, the inner cavity of the circular trough is mounted on ball in both sides up and down, protective device is mounted at left and right sides of the internal gear, the protective device includes inner cylinder, and the inner cylinder is connected with internal gear.The differential gear; when the internal gear face of cutter, which carries out turning finishing, to be moved there is a phenomenon where card; cutter squeezes inner cylinder and promotes connecting plate; connecting plate band movable slider can be made to be slided outside in cylinder and promote connecting seat; connecting seat can be made to promote connecting rod to drive the lantern ring to be slided on drum bar; spring is extruded by connecting seat; inner cylinder can be made to enter a part in outer barrel; it can make the movement of internal gear small distance in external gear; avoid cutter and internal gear dynamic there is a phenomenon where card, not only avoid cracking of cutter but also protect internal gear.

Description

A kind of differential gear

Technical field

Gear technique field is the utility model is related to, is specially a kind of differential gear.

Background technology

Differential mechanism is the main part of automobile drive axle, its effect is exactly while to both sides semiaxis passing power, it is allowed to Both sides semiaxis is rotated with different rotating speeds, is met that two sidecar wheels make Unequal distance traveling in the form of pure rolling as far as possible, is reduced wheel Tire and the friction on ground, and gear is the important component of differential mechanism, for the ease of installation, is usually set on the end face of gear There are multiple mounting holes, since differential gear required precision is higher, need to carry out turning finishing to gear blank end face after heat treatment Work, and gear blank end face has been drilled mounting hole at this time, gear blank hardness is higher, and cutter belongs to interruption and cut when carrying out turnery processing Cut, easily damage cutter, such as the utility model of Application No. 201520790843.6, including gear mass and be arranged on gear mass The teeth portion of periphery, is equipped with axis hole at the center of gear mass, mounting hole is equipped with gear mass end face, the mounting hole is along gear mass The heart is uniformly distributed, although extending cutting-tool's used life, but produced in enormous quantities, but between external gear and internal gear Frictional force is larger, while can be dynamic there is a phenomenon where card when cutter carries out turning finishing to gear mass end face, does not only result in knife Tool is broken and internal gear can be caused to damage.

Utility model content

The purpose of this utility model is to provide a kind of differential gear, to solve proposed in the above background technology ask Topic.

To achieve the above object, the utility model provides following technical solution：A kind of differential gear, including external gear and Internal gear, is provided with internal gear on the inside of the external gear, the lumen circumference surface of the external gear is equipped with circular trough, the circle The inner cavity of shape groove is mounted on ball in both sides up and down, and protective device, the protection are mounted at left and right sides of the internal gear Device includes inner cylinder, and the inner cylinder is connected with internal gear, and outer barrel, the inner cavity outside of the outer barrel are socketed with the outside of the inner cylinder Base is installed, the both sides up and down of the base are mounted on drum bar, spring, the spring are provided with the inside of the base Inner side connecting seat is installed, the outside upper and lower ends of the connecting seat are mounted on connecting rod, the outside peace of the connecting rod Equipped with the lantern ring, the lantern ring connects with drum rod set, and connecting plate, the connecting plate and inner cylinder phase are provided with the inside of the connecting seat Even, the both sides up and down of the connecting plate are mounted on sliding block, and the sliding block coordinates with outer barrel and is connected, the outside installation of the outer barrel There is slide bar, the slide bar matches with circular trough, and the both side surface up and down of the slide bar is equipped with sliding slot, the sliding slot and ball Coordinate and be connected.

Preferably, the junction of the base and spring is provided with casing.

Preferably, the junction of the inner cylinder and internal gear is provided with securing plate.

Preferably, the outer wall of the internal gear is equipped with reinforcing rib.

Compared with prior art, the beneficial effects of the utility model are：The differential gear, passes through slide bar and circular trough phase Matching, can be such that internal gear band moving slide-bar is slided in circular trough, be coordinated by ball with sliding slot and be connected, can drive slide bar Sliding slot slides on ball, reduces the frictional force between internal gear and external gear, when the internal gear face of cutter carries out turning Finishing occur card it is dynamic when, cutter squeezes inner cylinder promotion connecting plate, is connected by sliding block with outer barrel cooperation, can make company Fishplate bar band movable slider slides in cylinder outside promotes connecting seat, is connect by the lantern ring and drum rod set, connecting seat can be made to promote connection Bar drives the lantern ring to be slided on drum bar, and spring is extruded by connecting seat, and inner cylinder can be made to enter a part in outer barrel, It can make the movement of internal gear small distance in external gear, avoid cutter and internal gear dynamic there is a phenomenon where card, not only avoid knife Tool is broken and protects internal gear, improves the quality of processing.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the roll structure schematic diagram of the utility model；

Fig. 3 is the protective device structure schematic diagram of the utility model；

Fig. 4 is the external gear schematic cross-sectional view of the utility model.

In figure：1st, external gear, 2, internal gear, 3, protective device, 301, inner cylinder, 302, sliding block, 303, connecting seat, 304, bullet Spring, 305, outer barrel, 306, sliding slot, 307, slide bar, 308, base, 309, casing, 310, drum bar, 311, the lantern ring, 312, even Extension bar, 313, connecting plate, 314, securing plate, 4, ball, 5, circular trough, 6, reinforcing rib.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.

- 4 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of differential gear, including external gear 1 and interior Gear 2, the inner side of external gear 1 are provided with internal gear 2, and the outer wall of internal gear 2 is equipped with reinforcing rib 6, can be added by reinforcing rib 6 The intensity of strong internal gear 2, the lumen circumference surface of external gear 1 are equipped with circular trough 5, and the inner cavity of circular trough 5 is respectively mounted both sides up and down There is ball 4, the left and right sides of internal gear 2 is mounted on protective device 3, and protective device 3 includes inner cylinder 301, inner cylinder 301 and internal tooth Wheel 2 is connected, and inner cylinder 301 and the junction of internal gear 2 are provided with securing plate 314, can strengthen inner cylinder 301 by securing plate 314 With the connection of internal gear 2, the outside of inner cylinder 301 is socketed with outer barrel 305, base 308, bottom is provided with the outside of the inner cavity of outer barrel 305 The both sides up and down of seat 308 are mounted on drum bar 310, and the inner side of base 308 is provided with spring 304, and spring 304 is spiral bullet Spring, coefficient of elasticity 18N/CM, the junction of base 308 and spring 304 are provided with casing 309, can be with by casing 309 Strengthen the connection of base 308 and spring 304, the inner side of spring 304 is provided with connecting seat 303, the outside upper and lower two of connecting seat 303 End is mounted on connecting rod 312, and the outside of connecting rod 312 is provided with the lantern ring 311, and the lantern ring 311 is socketed with drum bar 310, passes through The lantern ring 311 is socketed with drum bar 310, and connecting seat 303 can be made to promote connecting rod 312 to drive the lantern ring 311 sliding on drum bar 310 It is dynamic, spring 304 is extruded by connecting seat 303, inner cylinder 301 can be made to enter a part, connecting seat 303 in outer barrel 305 Inner side connecting plate 313 is installed, connecting plate 313 is connected with inner cylinder 301, and the both sides up and down of connecting plate 313 are mounted on sliding block 302, sliding block 302 coordinates with outer barrel 305 and is connected, and is coordinated by sliding block 302 with outer barrel 305 and is connected, can drive connecting plate 313 Sliding block 302 slides in outer barrel 305 promotes connecting seat 303, and the outside of outer barrel 305 is provided with slide bar 307, slide bar 307 and circle Groove 5 matches, and is matched by slide bar 307 and circular trough 5, and internal gear 2 can be made to be slided with moving slide-bar 307 in circular trough 5, The both side surface up and down of slide bar 307 is equipped with sliding slot 306, and sliding slot 306 coordinates with ball 4 and is connected, and passes through ball 4 and sliding slot 306 Coordinate and be connected, slide bar 307 can be made to drive sliding slot 306 to be slided on ball 4, reduce rubbing between internal gear 2 and external gear 1 Wipe power.

When internal gear 2 rotates, so that internal gear 2 is slided with moving slide-bar 307 in circular trough 5, while slide bar can be made 307 drive sliding slots 306 slide on ball 4, reduce the frictional force between internal gear 2 and external gear 1, when cutter is to internal gear 2 end faces carry out turning finishing occur card move when, cutter squeeze inner cylinder 301 promotion connecting plate 313, connecting plate can be made 313 band movable sliders 302 slide in outer barrel 305 promotes connecting seat 303, while connecting seat 303 promotes connecting rod 312 to drive the lantern ring 311 slide on drum bar 310, and spring 304 is extruded by connecting seat 303, and inner cylinder 301 can be made to enter outer barrel 305 An interior part, can make the movement of the small distance in external gear 1 of internal gear 2, not only avoid cracking of cutter but also protect internal tooth Wheel.

In the description of the utility model, it is to be understood that term " coaxial ", " bottom ", " one end ", " top ", " in Portion ", " other end ", " on ", " side ", " top ", " interior ", " front portion ", " center ", the orientation of the instruction such as " both ends " or position close It is to be described based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying, rather than Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot It is interpreted as the limitation to the utility model.

In addition, term " first ", " second ", " the 3rd ", " the 4th " are only used for description purpose, and it is not intended that instruction or Imply relative importance or the implicit quantity for indicating indicated technical characteristic, thus, define " first ", " second ", " the Three ", at least one this feature can be expressed or be implicitly included to the feature of " the 4th ".

In the utility model, unless otherwise clearly defined and limited, term " installation ", " setting ", " connection ", " Gu Calmly ", the term such as " being screwed on " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally； Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be with It is the interaction relationship of connection inside two elements or two elements, unless otherwise restricted clearly, for this area For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of differential gear, including external gear (1) and internal gear (2), internal gear is installed on the inside of the external gear (1) (2), it is characterised in that：The lumen circumference surface of the external gear (1) is equipped with circular trough (5), on the inner cavity of the circular trough (5) Lower both sides are mounted on ball (4), and protective device (3), the protective device are mounted at left and right sides of the internal gear (2) (3) inner cylinder (301) is included, the inner cylinder (301) is connected with internal gear (2), and outer barrel is socketed with the outside of the inner cylinder (301) (305), base (308) is installed on the outside of the inner cavity of the outer barrel (305), the both sides up and down of the base (308) are mounted on Drum bar (310), is provided with spring (304) on the inside of the base (308), connection is provided with the inside of the spring (304) Seat (303), the outside upper and lower ends of the connecting seat (303) are mounted on connecting rod (312), the connecting rod (312) it is outer Side is provided with the lantern ring (311), and the lantern ring (311) is socketed with drum bar (310), is provided with the inside of the connecting seat (303) Connecting plate (313), the connecting plate (313) are connected with inner cylinder (301), and the both sides up and down of the connecting plate (313) are mounted on Sliding block (302), the sliding block (302) coordinate with outer barrel (305) and are connected, and slide bar is provided with the outside of the outer barrel (305) (307), the slide bar (307) matches with circular trough (5), and the both side surface up and down of the slide bar (307) is equipped with sliding slot (306), the sliding slot (306) coordinates with ball (4) and is connected.

A kind of 2. differential gear according to claim 1, it is characterised in that：The base (308) and spring (304) Junction is provided with casing (309).

A kind of 3. differential gear according to claim 1, it is characterised in that：The inner cylinder (301) and internal gear (2) Junction is provided with securing plate (314).

A kind of 4. differential gear according to claim 1, it is characterised in that：The outer wall of the internal gear (2) is equipped with Reinforcing rib (6).