CN222415833U - Differential device - Google Patents

Abstract

The utility model discloses a differential device, which relates to the technical field of machinery and comprises an input end cam, an input gear, an output double-gear shaft part, a gear train, sector teeth and a swinging part which are sequentially connected from beginning to end, wherein the input end cam rotates to drive the input gear to rotate and the swinging part to swing respectively, the input gear drives the output double-gear shaft part to rotate, the swinging part drives the sector teeth to swing and rotate, and the gear train is driven by the sector teeth to reversely rotate relative to the output double-gear shaft part and apply resistance to the output double-gear shaft part, so that the rotation speed of the output double-gear shaft part can be consistent with that of the input gear. The differential device provided by the utility model can enable the output rotating speed of the output end to be consistent with the input rotating speed of the input end, realizes the function similar to intermittent motion, has a compact integral structure, is simple and feasible, can realize single adjustment of the structures of all the components, and is reliable and stable in operation.

Description

Differential device

Technical Field

The utility model relates to the technical field of machinery, in particular to a differential device.

Background

At present, the conventional differential device has a complex structure and poor stability, and the rotating speed of an output end and the rotating speed of an input end cannot be changed into the same.

The aim of the present invention is to design a new differential device, which can make the output rotation speed of the output end consistent with the input rotation speed of the input end, and realize the function similar to intermittent motion.

Disclosure of utility model

In view of the defects existing at present, the utility model provides the differential device, which can enable the output rotating speed of the output end to be consistent with the input rotating speed of the input end, realizes the function similar to intermittent motion, has compact integral structure, is simple and easy to operate, can realize single adjustment of each component structure, and has reliable and stable operation.

In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:

A differential device comprises an input end cam, an input gear, an output double-gear shaft part, a gear train, sector teeth and a swinging part which are sequentially connected from end to end, wherein the input end cam rotates to drive the input gear to rotate and the swinging part swings respectively, the input gear drives the output double-gear shaft part to rotate, the swinging part drives the sector teeth to swing and rotate, and the gear train is driven to reversely rotate relative to the output double-gear shaft part through the sector teeth and apply resistance to the output double-gear shaft part, so that the rotating speed of the output double-gear shaft part can be consistent with that of the input gear.

According to one aspect of the utility model, the wheel train comprises a rotating frame and a planetary wheel, wherein the planetary wheel is rotatably arranged on the rotating frame, and the planetary wheel is in fit connection with the output double-gear shaft part.

According to one aspect of the utility model, the planetary gear further comprises a transition gear, the sector teeth are meshed with the transition gear, the rotating frame comprises a fixed shaft and a planet carrier, the transition gear is connected to the fixed shaft, and the planet gear is rotatably mounted on the planet carrier.

According to one aspect of the utility model, the turret is provided with a gear ring, and the sector teeth mesh with the gear ring.

According to an aspect of the present utility model, the output double gear shaft portion includes a transmission gear, an outer gear shaft, an inner gear shaft, the input gear being meshed with the transmission gear, the transmission gear being fixed to the outer gear shaft, the inner gear shaft being journaled in the outer gear shaft.

According to one aspect of the utility model, the planet wheel comprises an outer matching wheel and an inner matching wheel, which are coaxially arranged, wherein the outer matching wheel is matched and connected with the outer gear shaft, and the inner matching wheel is matched and connected with the inner gear shaft.

According to one aspect of the utility model, the input end cam is a cylindrical cam, the swinging component comprises a swinging rod and a connecting rod, the swinging rod is connected with the input end cam in a matching way, one end of the connecting rod is connected with the swinging rod, and the other end of the connecting rod is connected with the sector teeth.

According to one aspect of the utility model, the cylindrical cam comprises a column main body and a spiral protrusion, wherein the column main body and the spiral protrusion are fixed, a notch is formed in the swing rod, and the spiral protrusion is connected in the notch in a matching mode.

According to one aspect of the utility model, the cylindrical cam comprises a column main body and a spiral groove, wherein the spiral groove is arranged on the column main body, the swing rod is connected with a driving block, and the driving block is connected in the spiral groove in a matching way.

According to one aspect of the present utility model, the rotational axis of the input gear is perpendicular to the rotational axis of the output double gear shaft portion.

The utility model has the advantages that the input end cam rotates to drive the input gear to rotate and the swinging part to swing respectively, the input gear drives the output double-gear shaft part to rotate, the swinging part drives the sector teeth to swing and rotate, the sector teeth drive the gear train to reversely rotate relative to the output double-gear shaft part and apply resistance to the output double-gear shaft part, when the input end cam rotates for a certain angle (namely after the swinging part swings for a certain angle or the gear train reversely rotates for a certain period of time), the rotating speed of the output double-gear shaft part is consistent with the rotating speed of the input gear, so that the output double-gear shaft part and the input gear shaft part are relatively static (relatively static in speed), and the function similar to intermittent motion can be realized. The device has compact integral structure, is simple and easy to operate, can carry out single adjustment on the structures of all the components, and is reliable and stable in operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, 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 these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of another angle of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

FIG. 4 is a schematic view of the cross-sectional A-direction structure of the present utility model;

fig. 5 is a schematic view of the cross-sectional structure of the present utility model in the B direction.

The names corresponding to the serial numbers in the figures are as follows:

1. Input end cam, 2, input gear, 3, output gear, 4, gear train, 41, fixed shaft, 42, planet carrier, 43, external mating wheel, 44, internal mating wheel, 45, rotating shaft, 5, transition gear, 6, sector gear, 7, swinging component, 71, swinging rod, 72, mounting sleeve, 8, output double gear shaft, 81, transmission gear, 82, external gear shaft, 83, internal gear shaft, 9, front sleeve seat, 10, rear sleeve seat, 11, column main body, 12 and spiral bulge.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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. In the description of the present utility model, it should be noted that the terms "top," "bottom," "one side," "another side," "front," "rear," "middle," "interior," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

Example 1

As shown in fig. 1-5, the differential device comprises an input end cam 1, an input gear 2, an output double-gear shaft 8, a gear train 4, sector teeth 6 and a swinging component 7 which are sequentially connected from beginning to end, namely, the input end cam 1 is respectively connected with the input gear 2 and the swinging component 7, the input gear 2 is connected with the output double-gear shaft 8, the gear train 4 is respectively connected with the output double-gear shaft 8 and the sector teeth 6, and the sector teeth 6 are connected with the swinging component 7. The input end cam 1 rotates to drive the input gear 2 to rotate and the swinging part 7 to swing reciprocally, the input gear 2 rotates to drive the output double-gear shaft part 8 to rotate, meanwhile, the swinging part 7 swings reciprocally to drive the sector gear 6 to swing reciprocally to rotate, the sector gear 6 drives the gear train 4 to rotate reversely relative to the output double-gear shaft part 8, and the reversely rotating gear train 4 can apply certain resistance to the output double-gear shaft part 8, so that when the gear train 4 rotates reversely for a period of time (or the swinging part 7 swings to a certain angle or the input end cam 1 rotates to a certain angle), the rotating speed of the output double-gear shaft part 8 can be consistent with the rotating speed of the input gear 2, and the output double-gear shaft part 8 and the input gear 2 are relatively stationary (relatively stationary in speed) at the moment, and the device realizes the function similar to intermittent motion.

In the present embodiment, the rotation axis of the input gear 2 is perpendicular to the rotation axis of the output double gear shaft portion 8. The differential device further comprises an output gear 3 which is fixedly or keyed to the output end of the output double gear shaft portion 8 for torque output.

In the embodiment, the swinging component 7 comprises a swinging rod 71, a connecting rod and a mounting sleeve 72, the sector teeth 6 comprise an integrated tooth body and a connecting sleeve rod, wherein the swinging rod 71 is connected with the input end cam 1 in a matched mode, one end of the connecting rod is fixed with the swinging rod 71, the other end of the connecting rod is fixed with the connecting sleeve rod, the connecting rod is sleeved in the mounting sleeve 72, and the mounting sleeve 72 is used for protection and mounting. The input end cam 1 is a cylindrical cam, and the cylindrical cam comprises a column main body 11 and a spiral protrusion 12, wherein the spiral protrusion 12 is fixedly or integrally arranged on the periphery of the column main body 11. The swing rod 71 is provided with a notch, the spiral bulge 12 is connected in the notch in a matched manner, so that when the cylindrical cam rotates, namely the column main body 11 and the spiral bulge 12 rotate together, the swing rod 71 can be driven to swing reciprocally through the matched connection of the spiral bulge 12 and the notch, and then the swing rod 71 drives the connecting rod to rotate reciprocally, so that the connecting sleeve rod is driven to swing reciprocally and rotate, the tooth body is driven to swing reciprocally and rotate, and the sector tooth 6 is driven to swing reciprocally and rotate.

In the embodiment, the gear train 4 comprises a rotating frame and planetary gears, wherein the planetary gears are rotatably arranged in the rotating frame through a rotating shaft 45 and are in matched connection with the output double-gear shaft part 8, a plurality of planetary gears can be arranged in three groups and uniformly distributed on the periphery of the output double-gear shaft part 8 at intervals, the rotating frame is in a hollow cylinder shape and internally provided with a containing cavity for installing the planetary gears, a circle of gear rings is integrally arranged on the periphery of the rotating frame, and the sector teeth 6 are meshed with the gear rings. The output double-gear shaft 8 can be only a double gear shaft, namely, the output double-gear shaft 8 is formed by a central shaft and two gear parts, or the output double-gear shaft 8 comprises an output central shaft, a driving gear part and a blocking gear part which are integrated, wherein the driving gear part and the blocking gear part are arranged on the output central shaft in sequence, the driving gear part is meshed with the input gear 2, three groups of planetary gears are meshed on the periphery of the blocking gear part, and the output gear 3 is connected to the output end of the output central shaft.

The working principle of the device is that an input end cam 1 rotates to drive an input gear 2 to rotate and an oscillating part 7 to oscillate reciprocally, when the input gear 2 rotates to drive a driving gear part to rotate, namely, drive the whole output double-gear shaft part 8 to rotate to drive an output gear 3 to rotate at a high speed, when the oscillating part 7 oscillates reciprocally, drive a sector gear 6 to oscillate reciprocally to rotate, and drive a rotating frame to rotate reversely relative to the output double-gear shaft part 8 (or reversely rotate relative to the output gear 3) through meshing of the sector gear 6 and a gear ring, so that a planet wheel is driven to revolve reversely around a blocking gear part of the output double-gear shaft part 8, at the moment, the reversely revolving planet wheel can cause a certain resistance to the blocking gear part (or cause a certain resistance to the output double-gear shaft part 8), after a period of time (or after the oscillating part 7 oscillates to a certain angle or the input end cam 1 rotates to a certain angle), the rotating speed of the output double-gear shaft part 8 (or the rotating speed of the output gear 3) can be reduced to be consistent with the rotating speed of the input gear 2, at the moment, and the two are relatively stationary (relatively stationary in speed), and the device achieves a function similar to intermittent motion.

The device has the advantages that the output rotating speed of the output double-gear shaft part 8 (the rotating speed of the output gear 3) is consistent with the input rotating speed of the input gear 2, the function similar to intermittent motion is realized, and the device can simplify the structure and reduce the cost by arranging the sector teeth 6 to be meshed with the gear ring of the rotating frame. The device has compact integral structure, is simple and easy to operate, can carry out single adjustment on the structures of all the components, and is reliable and stable in operation.

Example two

The difference between the present embodiment and the first embodiment is that the differential device further comprises a transition gear 5, a rotating frame comprises an integrated fixed shaft 41 and a planet carrier 42, an output double-gear shaft 8 comprises a transmission gear 81, an external gear shaft 82 and an internal gear shaft 83, and the planet gears comprise an external mating wheel 43 and an internal mating wheel 44 which are coaxially arranged in tandem.

In this embodiment, the sector teeth 6 mesh with a transition gear 5, the transition gear 5 being connected to the end of a fixed shaft 41, the planet wheels being rotatably mounted on a planet carrier 42. The input gear 2 is meshed with the transmission gear 81, the transmission gear 81 is fixed on the outer gear shaft 82, the outer gear shaft 82 is arranged in a hollow mode, the inner gear shaft 83 is sleeved in the outer gear shaft 82, the outer matching wheel 43 is matched and meshed with the gear end of the outer gear shaft 82, the inner matching wheel 44 is matched and meshed with the gear end of the inner gear shaft 83, the output gear 3 is connected with the output end portion of the inner gear shaft 83, and the output gear 3 is located outside the end portion of the outer gear shaft 82, and an axial gap is reserved between the output gear 3 and the outer gear shaft 82.

In the present embodiment, bearings are provided at both front and rear ends between the inner gear shaft 83 and the outer gear shaft 82, the inner gear shaft 83 is provided inside the bearing inner ring, and the outer gear shaft 82 is provided outside the bearing outer ring. The differential device further comprises a front sleeve seat 9 and a rear sleeve seat 10, wherein the front sleeve seat 9 is sleeved on the periphery of the external gear shaft 82 for protection and installation, a bearing is arranged between the front sleeve seat 9 and the external gear shaft, the rear sleeve seat 10 is sleeved on the periphery of the fixed shaft 41 for protection and installation, and a bearing is arranged between the rear sleeve seat 10 and the fixed shaft.

In this embodiment, the planet carrier 42 includes a split-type wheel body and a mounting plate, where the wheel body is cylindrical with an opening at one end, a plurality of notches are circumferentially arranged on a side surface of the wheel body to facilitate the exposure and installation of the planet gears, a plurality of holes are circumferentially arranged on an end surface of the wheel body, the mounting plate is disc-shaped, a plurality of rotating shafts 45 are circumferentially fixed on the mounting plate, the rotating shafts 45 are inserted into the holes through hole shaft matching, the planet gears (the outer matching wheel 43 and the inner matching wheel 44) are sleeved on the rotating shafts 45 through bearings, and an opening is arranged in the center of the mounting plate to facilitate the insertion and installation of the gear ends of the inner gear shaft 83 and the outer gear shaft 82. The number and arrangement form of the holes, the rotating shaft 45 and the planet gears are adapted, and three groups are respectively arranged.

The working principle of the embodiment is that the input end cam 1 rotates to drive the input gear 2 to rotate and the swinging part 7 to swing reciprocally; when the input gear 2 rotates, the transmission gear 81 is driven to rotate, the outer gear shaft 82 is driven to rotate, the outer gear end of the outer gear shaft 82 is meshed with the outer matching gear 43, the outer matching gear 43 and the inner matching gear 44 are coaxially arranged, the outer matching gear 43 and the inner matching gear 44 are driven to coaxially rotate together, the inner matching gear 44 is meshed with the gear end of the inner gear shaft 83, the inner gear shaft 83 is driven to rotate, namely the output gear 3 is driven to rotate at a high speed, when the swinging component 7 swings reciprocally, the sector gear 6 is driven to swing reciprocally, the transition gear 5 is driven to rotate reciprocally, the transition gear 5 is connected with the fixed shaft 41, the fixed shaft 41 and the planet carrier 42 are integrally arranged, the planet carrier 42 is driven to reversely rotate relative to the inner gear shaft 83 (or reversely rotate relative to the output gear 3), at the moment, the reversely revolving inner matching gear 44 reversely revolves around the gear end of the inner gear shaft 83 (and reversely revolves around the gear end of the outer gear shaft 82), the reversely revolving inner matching gear 44 can cause certain resistance (or cause certain resistance to the output gear 3 which is high-speed to the high-speed rotating), after a period of time (or after the swinging component 7 swings to a certain angle or the input gear 83 swings at a certain angle), the same time, the intermittent rotation speed can be achieved, and the speed can be relatively rotate, and the speed.

The device has the advantages that the output rotating speed of the output double-gear shaft part 8 (the rotating speed of the output gear 3) is consistent with the input rotating speed of the input gear 2, the function similar to intermittent motion is realized, and the device can run more stably and act more accurately and flexibly through the engagement of the sector gear 6 and the transition gear 5 and the matched connection arrangement between the inner and outer gear shafts 82 and the inner and outer matched wheels 43. The device has compact integral structure, is simple and easy to operate, can carry out single adjustment on the structures of all the components, and is reliable and stable in operation.

Example III

The difference between the present embodiment and the first embodiment is that the cylindrical cam includes a main body 11 and a spiral groove, the spiral groove is integrally formed on the cylindrical surface of the main body 11, the swing rod 71 is connected with a driving block, and the driving block is cooperatively clamped in the spiral groove.

In this embodiment, the driving block may be a columnar block, and the driving block is adapted in structural shape to the spiral groove. When the cylindrical cam rotates, namely the cylindrical main body 11 and the spiral groove rotate together, the driving block can be driven to move along the path of the spiral groove through the matched connection of the driving block and the spiral groove, namely the swinging rod 71 is driven to swing reciprocally, and then the swinging rod 71 drives the connecting rod to rotate back and forth, so that the connecting sleeve rod is driven to swing reciprocally and rotate, the tooth body is driven to swing reciprocally and rotate, and the sector tooth 6 is driven to swing reciprocally and rotate.

The device has the advantages that the output rotating speed of the output double-gear shaft part 8 (the rotating speed of the output gear 3) is consistent with the input rotating speed of the input gear 2, the function similar to intermittent motion is realized, and the structure of the device is simpler, easy to manufacture and process and low in cost by arranging the cylindrical cam into the structure of the column main body 11 and the spiral groove. The device has compact integral structure, is simple and easy to operate, can carry out single adjustment on the structures of all the components, and is reliable and stable in operation.

The implementation of the utility model has the advantages that:

1. The output rotating speed of the output end is enabled to be consistent with the input rotating speed of the input end, and the function similar to intermittent motion is realized;

2. The structure can be adjusted singly, and the operation is reliable and stable;

3. The whole structure is compact, simple and easy to operate.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A differential device is characterized by comprising an input end cam (1), an input gear (2), an output double-gear shaft (8), a gear train (4), sector teeth (6) and a swinging component (7) which are sequentially connected from beginning to end, wherein the input end cam (1) rotates to drive the input gear (2) to rotate and the swinging component (7) to swing respectively, the input gear (2) drives the output double-gear shaft (8) to rotate, the swinging component (7) drives the sector teeth (6) to swing and rotate, and the gear train (4) is driven to reversely rotate relative to the output double-gear shaft (8) through the sector teeth (6) and apply resistance to the output double-gear shaft (8) so that the rotating speed of the output double-gear shaft (8) can be consistent with that of the input gear (2).

2. A differential device according to claim 1, characterized in that the wheel train (4) comprises a rotating carrier, a planetary wheel rotatably mounted on the rotating carrier, the planetary wheel being in mating connection with the output double gear shaft (8).

3. A differential device according to claim 2, further comprising a transition gear (5), said sector teeth (6) being in mesh with the transition gear (5), said turret comprising a fixed shaft (41), a planet carrier (42) fixed to both, said transition gear (5) being connected to the fixed shaft (41), said planet being rotatably mounted on the planet carrier (42).

4. Differential device according to claim 2, characterized in that the turret is provided with a toothing, with which the sector teeth (6) mesh.

5. The differential device according to claim 2, wherein the output double-gear shaft portion (8) includes a transmission gear (81), an external gear shaft (82), and an internal gear shaft (83), the input gear (2) is meshed with the transmission gear (81), the transmission gear (81) is fixed on the external gear shaft (82), and the internal gear shaft (83) is sleeved in the external gear shaft (82).

6. The differential device according to claim 5, characterized in that the planetary wheels comprise an outer mating wheel (43) and an inner mating wheel (44), which are coaxially arranged, the outer mating wheel (43) being in mating connection with an outer gear shaft (82), the inner mating wheel (44) being in mating connection with an inner gear shaft (83).

7. The differential device according to claim 1, wherein the input end cam (1) is a cylindrical cam, the swinging component (7) comprises a swinging rod (71) and a connecting rod, the swinging rod (71) is connected with the input end cam (1) in a matching way, one end of the connecting rod is connected with the swinging rod (71), and the other end of the connecting rod is connected with the sector tooth (6).

8. The differential device according to claim 7, wherein the cylindrical cam comprises a column main body (11) and a spiral protrusion (12), the column main body and the spiral protrusion are fixed, a notch is formed in the swing rod (71), and the spiral protrusion (12) is connected in the notch in a matching manner.

9. The differential device according to claim 7, wherein the cylindrical cam comprises a column main body (11) and a spiral groove, the spiral groove is arranged on the column main body (11), the swing rod (71) is connected with a driving block, and the driving block is connected in the spiral groove in a matching way.

10. The differential device according to claim 1, characterized in that the rotational axis of the input gear (2) is perpendicular to the rotational axis of the output double gear shaft (8).