CN211314998U

CN211314998U - Shuttle type gear shifting device for tractor gearbox

Info

Publication number: CN211314998U
Application number: CN201921746410.5U
Authority: CN
Inventors: 刘明前
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-08-21
Anticipated expiration: 2029-10-17

Abstract

The utility model provides a shuttle gearshift for tractor gearbox, include sun gear (5) of setting on gearbox output shaft (1), set up to power output shaft (8) with walking bridge hookup, set up hitching sleeve (6) on power output shaft (8), the setting is and be used for the gear train of conversion direction between sun gear (5) and hitching sleeve (6), through sun gear (5), power output shaft (8) and hitching sleeve (6), the gear output of advancing has been realized, through the gear train, the gear output of retreating has been realized, consequently, realize advancing on same gearbox gear and the conversion between the gear of retreating, operation procedure has been simplified.

Description

Shuttle type gear shifting device for tractor gearbox

Technical Field

The utility model relates to a shuttle gearshift, especially a shuttle gearshift for tractor gearbox.

Background

The tractor is one of the main agricultural machines, in order to realize the advance and retreat of the tractor, therefore the tractor gearbox is an important agricultural machine part, in the existing gearbox used for the tractor, the gearbox that all is arranged in high-low gear and high-middle-low gear still, the gear that this type of gearbox provided can't satisfy the requirement of user's quick operation, and efficiency is very low, has influenced the operating efficiency of tractor greatly, has bound the application range and the operating efficiency of tractor, does not have a shuttle gearshift used for the tractor gearbox, realizes carrying on the conversion between the forward gear and the retreat gear on same gearbox gear, realizes the quick conversion between the forward gear and the retreat gear.

The technical scheme of the invention is made based on the technical problems, technical features and technical effects in the technical background of the applicant.

Disclosure of Invention

The object of the utility model is a shuttle gearshift for tractor gearbox.

In order to overcome the technical defects, the utility model aims to provide a shuttle type gear shifting device for a tractor gearbox, which realizes the conversion between a forward gear and a backward gear on the same gearbox gear and simplifies the operation procedure.

In order to achieve the purpose, the utility model adopts the technical proposal that: comprises a sun gear arranged on an output shaft of the gearbox, a power output shaft connected with the walking bridge, a hitching sleeve arranged on the power output shaft, and a gear set arranged between the sun gear and the hitching sleeve and used for converting the transmission direction.

The sun gear, the power output shaft, the hitching sleeve and the gear set are designed, forward gear output is realized through the sun gear, the power output shaft and the hitching sleeve, and backward gear output is realized through the gear set, so that the forward gear and the backward gear are switched on the same gear of the gearbox, and the operation procedure is simplified.

The utility model designs a, according to the mode of drive gear in the middle of the grafting solar gear, power output shaft, hitch cover and gear train hookup each other.

The utility model designs a, according to planetary gear as intermediate drive gear's mode the gear train with sun gear, power output shaft and hitch sleeve hookup.

The utility model discloses a, the gear train sets up to including ring gear, reverse planetary gear, planetary gear and planet gear carrier.

The utility model discloses a, ring gear and power output shaft set up on the casing of gearbox, and the planet carrier sets up on gearbox output shaft and reverse planetary gear and planetary gear set up respectively on the planet carrier, and the sun gear setting is on gearbox output shaft and the knot cover setting is between sun gear, planet carrier and power output shaft, and ring gear, reverse planetary gear, planetary gear and sun gear set up to mutual meshing formula hookup in proper order.

The utility model discloses a, gearbox output shaft and power output shaft set up to circular rod-shaped body and gearbox output shaft's end sets up to hookup with the sun gear, and power output shaft's inner end sets up to linking and power output shaft's outer end sets up to hookup with the walking bridge with the hitch.

The utility model discloses a, the ring gear sets up to the inner wall hookup with the gearbox and the ring gear sets up to hookup with reverse planetary gear engaged type.

The utility model discloses a, reverse planetary gear and planetary gear set up respectively to the column gear and reverse planetary gear and planetary gear set up respectively to coupleing with planet carrier rotary type, reverse planetary gear set up respectively to coupleing and planetary gear reverse planetary gear set up respectively to coupleing with reverse planetary gear and sun gear meshing type with ring gear and planetary gear meshing type respectively.

The utility model discloses a, the sun gear sets up to column gear and the sun gear sets up to hookup with the gearbox output shaft, and the sun gear sets up respectively to hookup with planetary gear and hitch sleeve engaged type.

The utility model discloses a, the planet carrier sets up to the rectangle frame body and the first preceding back frame of planet carrier sets up respectively to coupleing with reverse planetary gear rotary type, the frame sets up respectively to coupleing with the planetary gear rotary type around the second of planet carrier, be provided with the rotating sleeve on the left frame of planet carrier and the rotating sleeve of planet carrier sets up to coupleing with the gearbox output shaft, be provided with the internal gear on the right frame of planet carrier and the internal gear of planet carrier sets up to and links the jogged joint formula hookup.

The utility model designs a, hang the knot cover and establish to be gear knot cover and hang the knot cover and establish to couple with power output shaft, hang the knot cover and set up respectively to couple with sun gear and planet carrier discontinuous meshing.

The utility model discloses a, the sun gear, knot cover and power output shaft and gearbox output shaft, the ring gear, reverse planetary gear, planetary gear and planet carrier set up to distribute and a ring gear according to the mode of gear train diversion output, two reverse planetary gear, two planetary gear, a sun gear, a knot cover, a planet carrier and a power output shaft set up to constitute a set of advancing shelves and retreat the conversion part between the shelves, the central line of gearbox output shaft, the central line of ring gear, the central line of sun gear, the central line of knot cover, the central line of planet carrier and power output shaft's central line set up on same straight line.

The technical effects of the utility model reside in that: the ring gear is fixed to be assembled at the rear end of the gearbox, reverse planetary gear and ring gear meshing, planetary gear and reverse planetary gear meshing, sun gear and planetary gear meshing, planetary gear and reverse planetary gear install on the planet carrier, the hitching sleeve is through slipping the hitching mode respectively with the sun gear, planet carrier hitching transmission power, the shuttle gear shifting mechanism of tractor gearbox is including fixing the ring gear at the gearbox rear end, the sun gear, planetary gear, reverse planetary gear, planet carrier and hitching sleeve etc. constitute, the hitching sleeve is through slipping the hitching mode respectively with the sun gear, planet carrier hitching transmission power, realize advancing and retreat gear change, the gear that advances exports: when the output shaft of the gearbox is connected with the sun gear through the sliding connection sleeve, power is transmitted, and the transmission route is as follows: output shaft → sun gear → hitch → rear axle walking, reverse gear output: when the output shaft of the gearbox is meshed with the planetary gear through the sun gear, the planetary gear is meshed with the reverse planetary gear, the reverse planetary gear is meshed with the gear ring, the sliding hitching sleeve is hitched with the planetary gear carrier to transmit power, and the transmission route at the moment is as follows: the output shaft → the sun gear → the planetary gear → the reverse planetary gear → the gear ring → the planetary gear carrier → the hitching sleeve → the rear axle to travel, and the gear arrangement of the gearbox can be changed into shuttle shifting by adding the shuttle shifting mechanism at the output shaft end of the gearbox under the condition of not increasing the volume of the gearbox. Because can combine current gearbox assembly to use, reduced manufacturing cost, have superior price/performance ratio, tractor gearbox structure is compacter, and the gearbox gear shift operation is more high-efficient, makes the effect of tractor exert more effectively, and the economic nature is more outstanding, can satisfy the needs of market user operation very much.

In the technical scheme, the sun gear, the power output shaft, the hitch sleeve and the gear set which are grafted on the intermediate transmission gear are important technical characteristics, and have novelty, creativity and practicability in the technical field of shuttle type gear shifting devices for tractor gearboxes, and the terms in the technical scheme can be explained and understood by patent documents in the technical field.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Figure 1 is a schematic view of the present invention,

the gearbox comprises a gearbox output shaft-1, a gear ring-2, a reverse planetary gear-3, a planetary gear-4, a sun gear-5, a hitch sleeve-6, a planetary gear carrier-7 and a power output shaft-8.

Detailed Description

Terms such as "having," "including," and "comprising," as used herein with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and unless otherwise specified, the equipment and materials used in the following examples are commercially available, and if the processing conditions are not specified, please refer to the purchased product specification or follow the conventional method in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Fig. 1 is the utility model discloses a first embodiment, combine the figure concrete description embodiment, include gearbox output shaft 1, ring gear 2, reverse planetary gear 3, planetary gear 4, sun gear 5, hitch cover 6, planet carrier 7 and power output shaft 8 and ring gear 2 and power output shaft 8 set up on the casing of gearbox, planet carrier 7 sets up on gearbox output shaft 1 and reverse planetary gear 3 and planetary gear 4 set up respectively on planet carrier 7, sun gear 5 sets up on gearbox output shaft 1 and hitch cover 6 sets up at sun gear 5, between planet carrier 7 and the power output shaft 8, ring gear 2, reverse planetary gear 3, planetary gear 4 and sun gear 5 set up to mesh formula hookup each other in proper order.

In the present embodiment, the gearbox output shaft 1 and the power output shaft 8 are arranged as circular rod-shaped bodies and the end of the gearbox output shaft 1 is arranged to be coupled with the sun wheel 5, the inner end of the power output shaft 8 is arranged to be coupled with the hitching sleeve 6 and the outer end of the power output shaft 8 is arranged to be coupled with the walking bridge.

Through gearbox output shaft 1, formed the support tie point to sun gear 5, by gearbox output shaft 1, realized being connected with sun gear 5, its technical aim at: a be used for as the gear output shaft of gearbox, through power output shaft 8, formed the support tie point to hitching knot cover 6, by power output shaft 8, realized being connected with hitching knot cover 6, its technical aim at: for serving as the output shaft of the forward gear and the reverse gear.

In the present embodiment the ring gear 2 is arranged to be coupled to the inner wall of the gearbox and the ring gear 2 is arranged to be meshingly coupled to the counter-rotating planet gears 3.

Through ring gear 2, formed the support tie point to reverse planetary gear 3, by ring gear 2, realized being connected with reverse planetary gear 3, its technical aim at: a member of the gear set for effecting a shift between forward and reverse gears.

In the present embodiment, the reverse planet gears 3 and 4 are provided as spur gears and the reverse planet gears 3 and 4 are provided rotatably coupled with the planet carrier 7, respectively, the reverse planet gears 3 are provided meshingly coupled with the ring gear 2 and the planet gears 4, respectively, and the planet gears 4 reverse planet gears 3 are provided meshingly coupled with the reverse planet gears 3 and the sun gear 5, respectively.

Through reverse planet gear 3 and planetary gear 4, formed the support tie point to ring gear 2, sun gear 5 and planet carrier 7, realized being connected with ring gear 2 by reverse planet gear 3, realized being connected with sun gear 5 by planetary gear 4, realized being connected with planet carrier 7 by reverse planet gear 3 and planetary gear 4, its technical aim at lies in: a member of the gear set for effecting a shift between forward and reverse gears.

In the present embodiment the sun gear 5 is arranged as a spur gear and the sun gear 5 is arranged to be coupled to the gearbox output shaft 1, the sun gear 5 being arranged to be meshingly coupled to the planet gears 4 and the hitch 6, respectively.

Through sun gear 5, formed the support tie point to gearbox output shaft 1, planetary gear 4 and hitch knot cover 6, by sun gear 5, realized being connected with gearbox output shaft 1, realized being connected with planetary gear 4, realized being connected with hitch knot cover 6, its technical aim at: a member of the gear set for effecting a shift between forward and reverse gears.

In the present embodiment, the carrier 7 is provided as a rectangular frame-like body and first front and rear rims of the carrier 7 are respectively provided to be rotatably coupled with the reverse planetary gears 3, second front and rear rims of the carrier 7 are respectively provided to be rotatably coupled with the planetary gears 4, a rotating sleeve is provided on a left rim of the carrier 7 and the rotating sleeve of the carrier 7 is provided to be coupled with the transmission output shaft 1, an internal gear is provided on a right rim of the carrier 7 and the internal gear of the carrier 7 is provided to be meshingly coupled with the hitching sleeve 6.

Through planet carrier 7, formed the support tie point to gearbox output shaft 1, reverse planetary gear 3, planetary gear 4 and hitch knot cover 6, by planet carrier 7, realized being connected with gearbox output shaft 1, realized being connected with reverse planetary gear 3, realized being connected with planetary gear 4, realized being connected with hitch knot cover 6, its technical aim at: a member of the gear set for effecting a shift between forward and reverse gears.

In the present embodiment, the hitching sheath 6 is provided as a gear hitching sheath and the hitching sheath 6 is provided to be coupled with the power take-off shaft 8, the hitching sheaths 6 being provided to be intermittently mesh-coupled with the sun gear 5 and the planet carrier 7, respectively.

Through the hitch sleeve 6, the support tie point to sun gear 5, planet carrier 7 and power take off shaft 8 has been formed, by hitch sleeve 6, realized being connected with sun gear 5, realized being connected with planet carrier 7, realized being connected with power take off shaft 8, its technical aim at: and an intermediate member for effecting a shift between the forward gear and the reverse gear.

In the embodiment, the sun gear 5, the hitching sleeve 6 and the power output shaft 8 are arranged to be distributed with the gearbox output shaft 1, the ring gear 2, the reverse planet gears 3, the planet gears 4 and the planet gear carrier 7 according to the direction change output mode of the gear set, one ring gear 2, two reverse planet gears 3, two planet gears 4, one sun gear 5, one hitching sleeve 6, one planet gear carrier 7 and one power output shaft 8 are arranged to form a group of conversion parts between the forward gear and the reverse gear, and the central line of the gearbox output shaft 1, the central line of the ring gear 2, the central line of the sun gear 5, the central line of the hitching sleeve 6, the central line of the planet gear carrier 7 and the central line of the power output shaft 8 are arranged on the same straight line.

When the gearbox works, high and low gears are output by the gearbox output shaft 1, when the gearbox output shaft 1 is in one gear, the forward gear input to a walking axle is realized by the sliding of the hitching sleeve 6 on the power output shaft 8, the hitching sleeve 6 is meshed with the sun gear 5, the power output shaft 8 is driven by the gearbox output shaft 1 through the meshing of the sun gear 5 and the hitching sleeve 6, the forward gear input to the walking axle is realized, the hitching sleeve 6 slides reversely on the power output shaft 8, the hitching sleeve 6 is meshed with the internal gear of the planetary gear rack 7, the sun gear 5 is meshed with the planetary gear 4, the planetary gear 4 is meshed with the reverse planetary gear 3, the reverse planetary gear 3 is meshed with the gear ring 2, the gearbox output shaft 1 drives the planetary gear rack 7 to rotate through the sun gear 5, the planetary gear 4, the reverse planetary gear 3 and the gear ring 2, the power output shaft 8 is driven by the meshing of the planetary, the backward gear input of the walking bridge is realized.

In the second embodiment of the utility model, the sun gear 5, the power output shaft 8, the hitch sleeve 6 and the gear set are connected with each other according to the mode of the grafting intermediate transmission gear.

In the present embodiment, the gear set is coupled with the sun gear 5, the power take-off shaft 8 and the hitch 6 in such a way that the planetary gears act as intermediate transmission gears.

In the present embodiment, the gear set is configured to include a ring gear 2, a reverse planetary gear 3, a planetary gear 4, and a carrier 7.

A second embodiment of the present invention is based on the first embodiment,

the utility model has the characteristics of down:

1. because the sun gear 5, the power output shaft 8, the hitching sleeve 6 and the gear set are designed, the forward gear output is realized through the sun gear 5, the power output shaft 8 and the hitching sleeve 6, and the reverse gear output is realized through the gear set, the forward gear and the reverse gear are switched on the same gear of the gearbox, and the operation procedure is simplified.

2. Because the gear ring 2, the reverse planet gear 3, the planet gear 4 and the planet gear carrier 7 are designed, the reverse transmission of the power output shaft 8 is realized.

3. Due to the design of the gear ring 2, the reverse planetary gear 3, the planetary gear 4, the sun gear 5, the hitch sleeve 6, the planetary gear carrier 7 and the power output shaft 8, the integration with the gearbox is realized.

4. Owing to designed the utility model discloses a technical characteristic, in technical characteristic's the effect alone and mutual set, through experimental demonstration, the utility model discloses an each item performance index is 1.7 times at least for current each item performance index, has fine market value through the aassessment.

Other technical features connected with the sun gear 5, the power output shaft 8, the hitch 6 and the gear set of the intermediate transmission gear are all one of the embodiments of the present invention, and the technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to meet the requirements of patent laws, patent implementation rules and examination guidelines, all possible combinations of the technical features of the above-mentioned embodiments will not be described again.

Therefore in the shuttle shifter technical field for the tractor gearbox, all include the sun gear 5 that sets up on gearbox output shaft 1, set up to the power output shaft 8 with the walking bridge hookup, set up knot cover 6, the technical content that sets up between sun gear 5 and knot cover 6 and be used for the gear train of conversion direction of transmission all be in with the power output shaft 8 that sets up on power output shaft 8 the utility model discloses a protection within range.

Claims

1. A shuttle gearshift for a tractor gearbox, characterized by: comprises a sun gear (5) arranged on a gearbox output shaft (1), a power output shaft (8) connected with a walking bridge, a hitching sleeve (6) arranged on the power output shaft (8), and a gear set which is arranged between the sun gear (5) and the hitching sleeve (6) and is used for converting the transmission direction.

2. The shuttle shifting device for a tractor transmission of claim 1, wherein: the gear set is arranged to include a ring gear (2), a reverse planetary gear (3), a planetary gear (4) and a planetary gear carrier (7).

3. The shuttle shifting device for a tractor transmission of claim 2, wherein: the gear ring (2) and the power output shaft (8) are arranged on a shell of the gearbox, the planetary gear carrier (7) is arranged on the gearbox output shaft (1), the reverse planetary gear (3) and the planetary gear (4) are respectively arranged on the planetary gear carrier (7), the sun gear (5) is arranged on the gearbox output shaft (1), the hitching sleeve (6) is arranged among the sun gear (5), the planetary gear carrier (7) and the power output shaft (8), and the gear ring (2), the reverse planetary gear (3), the planetary gear (4) and the sun gear (5) are sequentially connected in a mutually meshed mode.

4. The shuttle shifting device for a tractor transmission of claim 3, wherein: the gearbox output shaft (1) and the power output shaft (8) are arranged to be circular rod-shaped bodies, the end of the gearbox output shaft (1) is connected with the sun wheel (5), the inner end of the power output shaft (8) is connected with the hanging sleeve (6), and the outer end of the power output shaft (8) is connected with the walking bridge.

5. The shuttle shifting device for a tractor transmission of claim 3, wherein: the sun gear (5) is arranged as a column gear, the sun gear (5) is arranged to be connected with the output shaft (1) of the gearbox, and the sun gear (5) is respectively arranged to be in meshed connection with the planetary gear (4) and the hitch sleeve (6).

6. The shuttle shifting device for a tractor transmission of claim 3, wherein: the hitching sleeve (6) is arranged to be a gear hitching sleeve and the hitching sleeve (6) is arranged to be connected with the power output shaft (8), and the hitching sleeve (6) is respectively arranged to be in discontinuous meshing connection with the sun gear (5) and the planet gear carrier (7).

7. The shuttle shifting device for a tractor transmission of claim 3, wherein: the ring gear (2) is arranged in connection with the inner wall of the gearbox and the ring gear (2) is arranged in engagement with the counter-rotating planetary gear (3),

or the reverse planet gear (3) and the planet gear (4) are respectively arranged as a column gear and the reverse planet gear (3) and the planet gear (4) are respectively arranged to be rotationally coupled with the planet gear carrier (7), the reverse planet gear (3) is respectively arranged to be in meshing coupling with the gear ring (2) and the planet gear (4) reverse planet gear (3) is respectively arranged to be in meshing coupling with the reverse planet gear (3) and the sun gear (5),

or the planet carrier (7) is a rectangular frame body, a first front frame and a first rear frame of the planet carrier (7) are respectively set to be rotationally connected with the reverse planet gear (3), a second front frame and a second rear frame of the planet carrier (7) are respectively set to be rotationally connected with the planet gear (4), a rotating sleeve is arranged on the left frame of the planet carrier (7) and the rotating sleeve of the planet carrier (7) is set to be connected with the output shaft (1) of the gearbox, an internal gear is arranged on the right frame of the planet carrier (7) and the internal gear of the planet carrier (7) is set to be in meshed connection with the hitching sleeve (6).

8. The shuttle shifting device for a tractor gearbox according to any of the claims from 1 to 7, characterized in that: the sun gear (5), the hitching sleeve (6), the power output shaft (8), the gearbox output shaft (1), the gear ring (2), the reverse planetary gear (3), the planetary gear (4) and the planetary gear carrier (7) are distributed according to the direction-changing output mode of the gear set, one gear ring (2), two reverse planetary gears (3), two planetary gears (4), one sun gear (5), one hitching sleeve (6), one planetary gear carrier (7) and one power output shaft (8) are arranged to form a conversion component between a forward gear and a reverse gear, and the central line of the gearbox output shaft (1), the central line of the gear ring (2), the central line of the sun gear (5), the central line of the hitching sleeve (6), the central line of the planetary gear carrier (7) and the central line of the power output shaft (8) are arranged on the same straight line.