CN112963507A

CN112963507A - Novel gearbox

Info

Publication number: CN112963507A
Application number: CN202110179310.4A
Authority: CN
Inventors: 龚明; 龚志明; 彭向林; 王波
Original assignee: Hunan Yiyang Fujia Technology Co ltd
Current assignee: Hunan Yiyang Fujia Technology Co ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-06-15

Abstract

The invention discloses a novel gearbox, which comprises a gearbox front end casing and a gearbox rear end casing, wherein the gearbox rear end casing is arranged on one side of the gearbox front end casing, an input shaft is arranged on one side inside the gearbox front end casing, a lifter is arranged at the top of the gearbox rear end casing, planetary casings are symmetrically arranged at two ends of the gearbox rear end casing, semi-shaft casings are symmetrically arranged at two ends of the planetary casings, and a rotary tillage output shaft is arranged at the bottom of one side, away from the gearbox front end casing, of the gearbox rear end casing; the planet gear transmission mechanism can mount and limit the positions of the planet gear and the gear ring through the planet carrier, thereby increasing the width of the device, ensuring that the installation of the gearbox body is more stable, reducing the possibility of the fault of the planet gear transmission mechanism, ensuring that the transmission of the planet gear mechanism in the gearbox is more stable, avoiding the occurrence of the conditions of deformation, abrasion, fracture and the like of internal parts of the gearbox after long-time use and prolonging the service life of each part.

Description

Novel gearbox

Technical Field

The invention relates to the technical field of gearboxes for caterpillar tractors, in particular to a novel gearbox.

Background

A caterpillar tractor, also called caterpillar tractor or caterpillar tractor, is a kind of tractor, the caterpillar is different from the wheeled tractor, it is supported on the ground by a coiled endless caterpillar, the caterpillar contacts the ground, the caterpillar is inserted into the ground, the driving part is not grounded, the driving wheel continuously rolls up the caterpillar from the rear by the engagement between the teeth of the driving wheel and the track plate joint pin under the action of the driving torque, the grounded part of the caterpillar gives a backward acting force to the ground and needs a forward reacting force to the caterpillar, the reacting force is the driving force for driving the tractor to move forward, the gear box is the core component of the caterpillar tractor, the function is to change the driving force and the driving speed of the tractor, make the tractor move forward or backward and stop and output the power under the condition of diesel engine operation, the speed changer is composed of the speed change transmission mechanism and the operation mechanism, the transmission is mostly carried out by a planetary gear; in the transmission case of the prior crawler tractor, the transmission stability of the planetary gear is poor, and the prior crawler tractor is easy to deform, wear and break and has high failure rate in long-term use.

Disclosure of Invention

The invention aims to provide a novel gearbox, which is provided to solve the problem in the background technology that the gearbox is a core component of a crawler tractor and has the function of changing the driving force and the running speed of the tractor to enable the tractor to move forward or backward and to stop and output power under the working condition of a diesel engine, wherein the gearbox consists of a variable speed transmission mechanism and an operating mechanism, and is mostly driven by a planetary gear; inside the gearbox in the prior caterpillar tractor, the transmission stability of the planetary gear is poor, and the problems of deformation, abrasion, breakage and high failure rate are easy to occur in long-term use.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel gearbox, includes gearbox front end casing and gearbox rear end casing, one side of gearbox front end casing is provided with gearbox rear end casing, the inside one side of gearbox front end casing is provided with the input shaft, the top of gearbox rear end casing is provided with the lifting mechanism, the both ends symmetry of gearbox rear end casing is provided with planetary housing, planetary housing's both ends symmetry is provided with the semi-axis casing, the bottom that gearbox front end casing one side was kept away from to gearbox rear end casing is provided with the rotary tillage output shaft.

Preferably, the middle positions of two ends in the shell at the rear end of the gearbox are provided with sun gear shafts, the middle positions of two ends in the shell at the rear end of the gearbox are provided with planet carriers, one end of each planet carrier is uniformly provided with three groups of planet shafts, the planet shafts are matched with the sun gear shafts, the outer sides of the planet shafts are sleeved with planet gears, one side, close to each other, of each planet carrier at the same end is provided with a gear ring in sliding connection with the planet shaft, and the gear rings are meshed with the planet gears.

Preferably, the one end at the gearbox front end casing back is provided with the hydraulic pump, one side of the positive one end of gearbox front end casing is provided with the clutch handle, one side of gearbox rear end casing one end is provided with hydraulic motor, one side of the gearbox rear end casing other end is provided with front and back operating handle.

Preferably, a rear output operating handle is arranged at the top of one side, away from the hydraulic motor interface, of one end of the front face of the shell at the rear end of the gearbox.

Preferably, one end of the hydraulic motor is provided with a hydraulic motor interface.

Preferably, half shafts are symmetrically arranged at two ends of the sun gear shaft, and extend to the outside of the half shaft shell through the planetary shell.

Preferably, two sets of the one end of half axle casing inside all is provided with bearing A, and bearing A cover locates the one end in the half axle outside.

Preferably, one side of the two sets of planet carriers at the same end, which is far away from each other, is provided with a bearing B, and the bearing B is matched with the sun gear shaft.

Compared with the prior art, the invention has the beneficial effects that: this novel gearbox can install spacingly to the position of planet tooth and ring gear through the planet carrier to the width of device has been increased, makes the gearbox body installation more stable, has reduced planetary gear drive mechanism's possibility of breaking down, makes planetary gear drive more stable in the gearbox, avoids leading to the gearbox internals to appear warping, wearing and tearing, the emergence of the condition such as rupture because of using often, with the life of extension each part.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a side cross-sectional view of the planetary housing of the present invention;

FIG. 5 is a schematic view of the gear ring and planetary gear transmission structure of the present invention.

In the figure: 1. a gearbox front end housing; 2. an input shaft; 3. a clutch handle; 4. a hydraulic motor; 5. a half shaft; 6. a planetary housing; 7. a rotary tillage output shaft; 8. a lifter; 9. a gearbox rear end housing; 10. a half-shaft housing; 11. a front and rear operating handle; 12. a hydraulic pump; 13. a rear output operating handle; 14. a hydraulic motor interface; 15. a ring gear; 16. a sun gear shaft; 17. a planet shaft; 18. a planet carrier; 19. and a planet gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: the utility model provides a novel gearbox, including gearbox front end casing 1 and gearbox rear end casing 9, one side of gearbox front end casing 1 is provided with gearbox

rear end casing

9, 1 inside one side of gearbox front end casing is provided with input shaft 2, with engine output shaft, the top of gearbox rear end casing 9 is provided with lifting mechanism 8, the both ends symmetry of gearbox rear end casing 9 is provided with planetary housing 6, protect being used for driven planetary gear, planetary housing 6's both ends symmetry is provided with semi-axis casing 10, the bottom that gearbox front end casing 1 one side was kept away from to gearbox rear end casing 9 is provided with rotary tillage output shaft 7, provide drive power to externally connected rotary tillage mechanism.

Furthermore, a sun gear shaft 16 is arranged in the middle of two ends inside a casing 9 at the rear end of the gearbox, planet carriers 18 are arranged in the middle of two ends inside two groups of planet housings 6, three groups of planet shafts 17 are uniformly arranged at one end of one group of planet carriers 18, the planet shafts 17 are matched with the sun gear shaft 16, planet gears 19 are sleeved outside the planet shafts 17, a gear ring 15 connected with the two groups of planet carriers 18 at the same end in a sliding mode is arranged on one side, close to each other, of the two groups of planet carriers 18, the gear ring 15 is meshed with the planet gears 19, the sun gear shaft 16 drives the three groups of planet gears 19 inside the planet housings 6 to rotate by taking the corresponding planet shafts 17 as a central point, and the three groups of planet gears 19 drive the gear ring 15 to rotate.

Further, a hydraulic pump 12 is arranged at one end of the back face of the gearbox front end casing 1, a clutch handle 3 is arranged at one side of one end of the front face of the gearbox front end casing 1, a hydraulic motor 4 is arranged at one side of one end of the gearbox rear end casing 9, and a front and rear operating handle 11 is arranged at one side of the other end of the gearbox rear end casing 9.

Furthermore, a rear output operating handle 13 is arranged at the top of one side, away from the hydraulic motor interface 14, of the front end of the gearbox rear end casing 9.

Further, one end of the hydraulic motor 4 is provided with a hydraulic motor interface 14, which is connected with the hydraulic pump 12 through a conduit to drive the hydraulic motor 4 to rotate.

Further, half shafts 5 are symmetrically arranged at both ends of the sun gear shaft 16, and the half shafts 5 extend to the outside of the half shaft housing 10 through the planetary housing 6 to provide a rotational force for the crawler tractor to travel.

Furthermore, a bearing a is disposed at one end inside each of the two sets of half shaft housings 10, and the bearing a is sleeved at one end outside the half shaft 5, so that the half shaft 5 rotates more stably.

Furthermore, the two sets of planet carriers 18 at the same end are provided with a bearing B at the side away from each other, and the bearing B is matched with the sun gear shaft 16, so that the sun gear shaft 16 rotates more stably.

The working principle is as follows: this novel gearbox passes through sun gear shaft 16 and rotates the in-process, it rotates as the centre of a circle point with its planet axle 17 that corresponds to drive the inside three sets of planet 19 of planet casing 6 through sun gear shaft 16, rotate with driving ring gear 15 through three sets of planet 19, planet casing 6's inside all is provided with two sets of planet carriers 18 in the gearbox, can carry on spacingly to planet 19 and ring gear 15's position through planet carrier 18, thereby the width of device has been increased, the possibility that planetary gear transmission breaks down has been reduced, make planetary gear transmission more stable in the gearbox.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like 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 "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a novel gearbox, includes gearbox front end casing (1) and gearbox rear end casing (9), its characterized in that: one side of gearbox front end casing (1) is provided with gearbox rear end casing (9), one side of gearbox front end casing (1) inside is provided with input shaft (2), the top of gearbox rear end casing (9) is provided with riser (8), the both ends symmetry of gearbox rear end casing (9) is provided with planet casing (6), the both ends symmetry of planet casing (6) is provided with semi-axis shell (10), the bottom that gearbox front end casing (1) one side was kept away from in gearbox rear end casing (9) is provided with rotary tillage output shaft (7).

2. The new transmission according to claim 1, characterized in that: the gearbox rear end machine shell is characterized in that a sun gear shaft (16) is arranged in the middle of two ends inside a gearbox rear end machine shell (9), two planetary carriers (18) are arranged in the middle of two ends inside a planetary shell (6), one planetary carrier (18) is evenly provided with three groups of planetary shafts (17), the planetary shafts (17) are matched with the sun gear shaft (16), planetary gears (19) are sleeved on the outer sides of the planetary shafts (17), a gear ring (15) in sliding connection with the planetary shafts is arranged on one side, close to each other, of the planetary carriers (18) in the same end, and the gear ring (15) is meshed with the planetary gears (19).

3. The new transmission according to claim 1, characterized in that: one end at the back of the gearbox front end casing (1) is provided with a hydraulic pump (12), one side of the front end of the gearbox front end casing (1) is provided with a clutch handle (3), one side of one end of the gearbox rear end casing (9) is provided with a hydraulic motor (4), and one side of the other end of the gearbox rear end casing (9) is provided with a front and back operating handle (11).

4. The new transmission according to claim 1, characterized in that: and a rear output operating handle (13) is arranged at the top of one side of the front end of the gearbox rear end casing (9), which is far away from the hydraulic motor interface (14).

5. A novel transmission as claimed in claim 3, wherein: one end of the hydraulic motor (4) is provided with a hydraulic motor interface (14).

6. A novel transmission as claimed in claim 2, wherein: the two ends of the sun wheel shaft (16) are symmetrically provided with half shafts (5), and the half shafts (5) penetrate through the planetary shell (6) and extend to the outside of the half shaft shell (10).

7. The new transmission according to claim 1, characterized in that: and bearings A are arranged at one ends inside the two half shaft shells (10), and are sleeved at one ends outside the half shafts (5).

8. A novel transmission as claimed in claim 2, wherein: and one sides of the two groups of planet carriers (18) at the same end, which are far away from each other, are provided with bearings B, and the bearings B are matched with the sun wheel shaft (16) mutually.