CN220204546U - Mechanical transmission gearbox - Google Patents

Abstract

The utility model discloses a mechanical transmission gearbox which comprises a first shell with a first accommodating groove and a second shell with a second accommodating groove, wherein the first shell and the second shell are detachably connected, the first accommodating groove and the second accommodating groove are spliced into an integral installation space, an input shaft, a transmission shaft, an output shaft and a clutch mechanism are arranged in the installation space, the input shaft is provided with a first input gear and a second input gear, the transmission shaft is provided with a first transmission gear, a second transmission gear, a third transmission gear and a fourth transmission gear, the output shaft is provided with an output gear, the first input gear is meshed with the first transmission gear, the second input gear is meshed with the second transmission gear, the fourth transmission gear is meshed with the output gear, and the clutch mechanism is used for enabling the third transmission gear to be connected with one of the first transmission gear and the second transmission gear and enabling the third transmission gear to be separated from the first transmission gear and the second transmission gear. The mechanical transmission gearbox has the advantages of simple integral structure, convenient disassembly, assembly and maintenance and good quality.

Description

Mechanical transmission gearbox

Technical Field

The utility model relates to the technical field of gearboxes, in particular to a mechanical transmission gearbox.

Background

The utility model provides a motor power gearbox of shifting that current application number is 202222324669.9, including the box and locate the input shaft in the box, transmission shaft and output shaft, input gear has been set firmly on the input shaft, it keeps off drive gear and II keeps off drive gear to rotate on the transmission shaft, clutch gear has been set firmly I keeps off output gear and II keeps off output gear on the output shaft, input gear and clutch gear meshing, I keeps off drive gear and I keeps off output gear meshing, II keeps off drive gear and II keeps off output gear meshing, be equipped with I fender clutch mechanism between clutch gear and the I fender drive gear, be equipped with II fender clutch mechanism between clutch gear and the II fender drive gear, be equipped with the motor mount pad outside the box, input shaft one end stretches into in the motor mount pad, and be equipped with the butt joint mouth that is used for with the motor butt joint. The existing motor power shift gearbox has the following defects: 1) The box body forms a complete installation space, and the input shaft, the transmission shaft and the output shaft are all installed in the installation space, so that the disassembly, the assembly and the maintenance are inconvenient; 2) The whole structure is complex, the processing and the assembly are difficult, and the cost is high; 3) The vent is generally arranged at the top of the box body, and the structure of the box body needs to be destroyed, so that the quality of the box body is affected.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the mechanical transmission gearbox which has the advantages of simple integral structure, convenient disassembly, assembly and maintenance and good quality.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a mechanical transmission gearbox, includes the first casing that has first holding tank and the second casing that has the second holding tank, first casing and second casing detachably fixed connection, the notch amalgamation of first holding tank and second holding tank constitutes whole installation space, be equipped with input shaft, transmission shaft, output shaft and clutch mechanism in the installation space, first input gear and second input gear have been set firmly on the input shaft, the rotation is equipped with first drive gear and second drive gear on the transmission shaft, third drive gear and fourth drive gear have been set firmly, the output gear has been set firmly on the output shaft, first input gear and first drive gear meshing, second input gear and second drive gear meshing, fourth drive gear and output gear meshing, clutch mechanism is used for making one of third drive gear and first drive gear and second drive gear transmission connection and make third drive gear and first drive gear and second drive gear separation.

As a further improvement of the above technical scheme:

the motor mounting seat is arranged outside the second shell, and one end of the input shaft extends into the motor mounting seat and is provided with a butt joint port for butt joint with the motor.

The motor mounting seat is internally provided with an axially-through mounting hole, the butt joint port is communicated with the mounting hole, and the motor mounting seat is provided with an openable cover plate at the inlet of the mounting hole.

The novel portable electric power transmission device is characterized in that a mounting opening is formed in the first shell, the other end of the input shaft is mounted at the mounting opening through a first bearing, a detachable end cover is arranged outside the first bearing on the first shell, a vent communicated with the integral mounting space is formed in the end cover, and an opening and closing cap is arranged at the vent.

The motor mounting seat is detachably fixed on the second shell.

The two ends of the transmission shaft are respectively arranged on the inner walls of the first accommodating groove and the second accommodating groove through second bearings.

The two ends of the output shaft respectively penetrate through the first shell and the second shell and are respectively provided with an output flange used for being connected with the wheels.

The input shaft, the transmission shaft and the output shaft are parallel and coplanar.

The clutch mechanism comprises a clutch gear ring and an operation assembly for enabling the clutch gear ring to slide, a first clutch gear and a second clutch gear are respectively arranged on opposite sides of the first transmission gear and the second transmission gear, the third transmission gear is located between the first clutch gear and the second clutch gear, and the clutch gear ring is in sliding engagement with the third transmission gear and can slide to be engaged with the first clutch gear or the second clutch gear.

The operation assembly comprises a shifting fork, a shifting rod arranged on the second shell in a sliding manner and a gear shifting oil cylinder used for driving the shifting rod to slide, wherein the gear shifting oil cylinder is arranged on the outer side of the second shell, and the shifting rod is connected with the clutch gear ring through the shifting fork.

Compared with the prior art, the utility model has the advantages that:

according to the mechanical transmission gearbox, the first shell and the second shell are detachably and fixedly connected, the notch of the first accommodating groove and the notch of the second accommodating groove are spliced to form an integral installation space, and compared with the existing box body structure, the mechanical transmission gearbox is convenient to disassemble, assemble and maintain. And the whole structure is simpler, the processing and the assembly are easy, and the cost is low.

According to the mechanical transmission gearbox, the vent is arranged on the end cover and is not arranged on the shell, so that damage to the opening of the shell is avoided, and the quality of the shell is improved.

Drawings

Fig. 1 is a schematic diagram of the front view of a mechanical transmission gearbox of the present utility model.

Figure 2 is a cross-sectional view of A-A in figure 1.

Fig. 3 is a schematic rear view of the mechanical transmission gearbox of the present utility model.

Fig. 4 is a cross-sectional view of B-B in fig. 3.

The reference numerals in the drawings denote:

1. a first housing; 11. a first accommodation groove; 1121. an installation space; 12. a mounting port; 13. a first bearing; 14. an end cap; 141. a vent; 142. opening and closing the cap; 2. a second housing; 21. a second accommodation groove; 3. an input shaft; 31. a first input gear; 32. a second input gear; 33. an interface; 4. a transmission shaft; 41. a first transmission gear; 411. a first clutch gear; 42. a second transmission gear; 421. a second clutch gear; 43. a third transmission gear; 44. a fourth transmission gear; 45. a second bearing; 5. an output shaft; 51. an output gear; 52. an output flange; 6. a clutch mechanism; 61. a clutch gear ring; 62. an operating assembly; 621. shifting fork; 622. pulling out a rod; 623. a gear shifting oil cylinder; 7. a motor mount; 71. a mounting hole; 72. and a cover plate.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the specific examples.

In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Fig. 1 to 4 show an embodiment of the mechanical transmission gearbox of the present utility model, which comprises a first housing 1 having a first accommodating groove 11 and a second housing 2 having a second accommodating groove 21, the first housing 1 and the second housing 2 are detachably and fixedly connected, the notches of the first accommodating groove 11 and the second accommodating groove 21 are spliced to form an integral installation space 1121, an input shaft 3, a transmission shaft 4, an output shaft 5 and a clutch mechanism 6 are arranged in the installation space 1121, a first input gear 31 and a second input gear 32 are fixedly arranged on the input shaft 3, a first transmission gear 41 and a second transmission gear 42 are rotatably arranged on the transmission shaft 4, a third transmission gear 43 and a fourth transmission gear 44 are fixedly arranged on the output shaft 5, the first input gear 31 is meshed with the first transmission gear 41, the second input gear 32 is meshed with the second transmission gear 42, the fourth transmission gear 44 is meshed with the output gear 51, and the clutch mechanism 6 is used for connecting the third transmission gear 43 with one of the first transmission gear 41 and the second transmission gear 42 and separating the third transmission gear 43 from the second transmission gear 41.

When the I gear working condition is selected, the clutch mechanism 6 enables the third transmission gear 43 to be in transmission connection with the first transmission gear 41, enables the third transmission gear 43 to be separated from the second transmission gear 42, the input shaft 3 is a driving part and is connected with a driving motor, the first input gear 31 is a driven part, the first input gear 31 drives the transmission shaft 4 to rotate through the third transmission gear 43, the transmission shaft 4 drives the output shaft 5 through the fourth transmission gear 44 and the output gear 51, and two ends of the output shaft 5 are respectively connected with a front axle and a rear axle of the whole vehicle through the output flange 52 to drive the tire to rotate.

When the working condition of II gear is selected, the clutch mechanism 6 enables the third transmission gear 43 to be in transmission connection with the second transmission gear 42, the third transmission gear 43 is separated from the first transmission gear 41, the input shaft 3 is a driving part and is connected with a driving motor, the second input gear 32 is a driven part, the second input gear 32 drives the transmission shaft 4 to rotate through the third transmission gear 43, the transmission shaft 4 drives the output shaft 5 through the fourth transmission gear 44 and the output gear 51, and two ends of the output shaft 5 are respectively connected with a front axle and a rear axle of the whole vehicle through the output flange 52 to drive the tire to rotate.

When neutral mode operation is selected, the clutch mechanism 6 decouples the third transfer gear 43 from both the second transfer gear 42 and the first transfer gear 41.

The first shell 1 and the second shell 2 of the mechanical transmission gearbox are detachably and fixedly connected, the notch of the first accommodating groove 11 and the notch of the second accommodating groove 21 are spliced to form an integral installation space 1121, and compared with the existing box structure, the mechanical transmission gearbox is convenient to assemble, disassemble and maintain. And the whole structure is simpler, the processing and the assembly are easy, and the cost is low.

In this embodiment, the motor mount 7 is disposed outside the second housing 2, and one end of the input shaft 3 extends into the motor mount 7 and is provided with a docking port 33 for docking with a motor. Preferably, the motor mounting seat 7 is a sleeve body with an axial through hole for sleeving the motor, and is convenient for butting a driving shaft of the motor with the butt joint 33. The opposite interface 33 is a splined hole, which facilitates the butt joint with the motor and the disassembly and assembly of the motor.

In this embodiment, the motor mount 7 has an installation hole 71 penetrating in the axial direction, the opposite port 33 communicates with the installation hole 71, and the motor mount 7 has a cover 72 openable and closable at the entrance of the installation hole 71. Specifically, the cover plate 72 is fixed to the motor mount 7 by screws.

In this embodiment, the first housing 1 is provided with an installation opening 12, the other end of the input shaft 3 is installed at the installation opening 12 through the first bearing 13, the first housing 1 is provided with a detachable end cover 14 outside the first bearing 13, the end cover 14 is provided with a vent 141 communicated with the integral installation space 1121, and the vent 141 is provided with an opening and closing cap 142. The vent 141 is provided on the end cap 14 and not on the housing, avoiding damage to the housing opening and improving the quality of the housing. Preferably, the opening and closing cap 142 is inserted into the vent port 141 and is screw-coupled to the vent port 141, and the opening and closing cap 142 is withdrawn as needed. The end cap 14 is fixed to the first housing 1 by screws.

In this embodiment, the motor mount 7 is detachably fixed to the second housing 2. Specifically, the motor mount 7 is fixed to the second housing 2 by bolts, facilitating disassembly and assembly.

In the present embodiment, both ends of the drive shaft 4 are mounted on the inner walls of the first accommodation groove 11 and the second accommodation groove 21 through the second bearings 45, respectively.

In the present embodiment, both ends of the output shaft 5 pass through the first housing 1 and the second housing 2, respectively, and are provided with output flanges 52 for connection with wheels, respectively. The two ends of the output shaft 5 are respectively connected with the front axle and the rear axle of the whole vehicle through output flanges 52. When the four-wheel drive type hydraulic machine is used, the output flanges 52 at the two ends of the output shaft 5 are respectively connected with the front axle and the rear axle of a mobile machine (such as a grabbing machine), four-wheel drive is realized, climbing load capacity is stronger, and the four-wheel drive type hydraulic machine can be better adapted to complex working environments.

In this embodiment, the input shaft 3, the transmission shaft 4 and the output shaft 5 are parallel and coplanar. The whole arrangement is convenient. Specifically, the axial directions of the input shaft 3, the transmission shaft 4, and the output shaft 5 are parallel to the depth directions of the first accommodation groove 11 and the second accommodation groove 21.

In the present embodiment, the clutch mechanism 6 includes the clutch ring gear 61 and the operating assembly 62 for sliding the clutch ring gear 61, the first and second clutch gears 411 and 421 are provided on opposite sides of the first and second transmission gears 41 and 42, respectively, the third transmission gear 43 is located between the first and second clutch gears 411 and 421, and the clutch ring gear 61 is slidably engaged on the third transmission gear 43 and is slidably engaged with the first clutch gear 411 or the second clutch gear 421. The operating assembly 62 slides the clutch gear ring 61, so that the clutch gear ring 61 slides to be meshed with the first clutch gear 411 or the second clutch gear 421, the clutch of each gear is realized, and when the clutch gear ring 61 is meshed with the first clutch gear 411 and the third transmission gear 43, the first gear is the first gear; when the clutch ring gear 61 is engaged with both the second clutch gear 421 and the third transmission gear 43; for gear II, neutral is achieved when the clutch ring gear 61 is engaged only with the third transfer gear 43.

In this embodiment, the operating component 62 includes a shifting fork 621, a shifting rod 622 slidably disposed on the second housing 2, and a shift cylinder 623 for driving the shifting rod 622 to slide, where the shift cylinder 623 is disposed outside the second housing 2, and the shifting rod 622 is connected to the clutch gear 61 through the shifting fork 621. The gear shifting oil cylinder 623 drives the pulling rod 622 to slide to realize the clutch operation of each gear, and the structure is simple and the operation is convenient.

Further, in use, the two ends of the output shaft 5 are respectively connected with the front axle and the rear axle of the whole vehicle through the output flanges 52, and the motor is arranged on the motor mounting seat 7 and is in butt joint with the butt joint port 33 of the output shaft 5. The motor mounting seat 7 is directly connected with the motor, and the torque output by the motor can be completely converted into the input torque of the mechanical transmission gearbox, namely, the torque loss of the hydraulic torque converter is omitted, the transmission efficiency is improved, meanwhile, the whole mechanical transmission gearbox is more compact in structure, the transverse space can be effectively saved, and the whole mechanical transmission gearbox is beneficial to whole vehicle arrangement.

The two ends of the input shaft 3 are arranged on the first shell 1 and the second shell 2 through first bearings 13, and the first bearings 13 are preferably deep groove ball bearings; the two ends of the transmission shaft 4 are arranged on the first shell 1 and the second shell 2 through second bearings 45, and the second bearings 45 are preferably cylindrical roller bearings; the first transmission gear 41 and the second transmission gear 42 are arranged on the transmission shaft 4 through a third bearing, and the third bearing is preferably a needle bearing; the two ends of the output shaft 5 are respectively arranged on the first shell 1 and the second shell 2 through a fourth bearing and a fifth bearing, wherein the fourth bearing is preferably a cylindrical roller bearing, and the fifth bearing is preferably a deep groove ball bearing.

While the utility model has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims (10)

1. A mechanical transmission gearbox, characterized in that: the novel energy-saving transmission device comprises a first shell (1) with a first accommodating groove (11) and a second shell (2) with a second accommodating groove (21), wherein the first shell (1) and the second shell (2) are detachably and fixedly connected, the notch of the first accommodating groove (11) and the notch of the second accommodating groove (21) are spliced to form an integral installation space (1121), an input shaft (3), a transmission shaft (4), an output shaft (5) and a clutch mechanism (6) are arranged in the installation space (1121), a first input gear (31) and a second input gear (32) are fixedly arranged on the input shaft (3), a first transmission gear (41) and a second transmission gear (42) are rotatably arranged on the transmission shaft (4), a third transmission gear (43) and a fourth transmission gear (44) are fixedly arranged on the transmission shaft (4), an output gear (51) is fixedly arranged on the output shaft (5), the first input gear (31) is meshed with the first transmission gear (41), the second input gear (32) is meshed with the second transmission gear (42), the fourth transmission gear (44) is meshed with the output gear (51), the clutch mechanism (6) is used for connecting the third transmission gear (43) with one of the first transmission gear (41) and the second transmission gear (42) in a transmission way and separating the third transmission gear (43) from the first transmission gear (41) and the second transmission gear (42).

2. The mechanical transmission gearbox of claim 1, wherein: the motor mounting seat (7) is arranged outside the second shell (2), and one end of the input shaft (3) stretches into the motor mounting seat (7) and is provided with a butt joint port (33) for butt joint with a motor.

3. A mechanical transmission gearbox according to claim 2, characterised in that: an axially-through mounting hole (71) is formed in the motor mounting seat (7), the butt joint opening (33) is communicated with the mounting hole (71), and an openable cover plate (72) is arranged at the inlet of the mounting hole (71) of the motor mounting seat (7).

4. A mechanical transmission gearbox according to claim 2, characterised in that: the novel portable electric power transmission device is characterized in that an installation opening (12) is formed in the first shell (1), the other end of the input shaft (3) is installed at the installation opening (12) through a first bearing (13), a detachable end cover (14) is arranged outside the first bearing (13) of the first shell (1), an air vent (141) communicated with the integral installation space (1121) is formed in the end cover (14), and an opening and closing cap (142) is arranged at the air vent (141).

5. A mechanical transmission gearbox according to claim 2, characterised in that: the motor mounting seat (7) is detachably fixed on the second shell (2).

6. The mechanical transmission gearbox of claim 1, wherein: the two ends of the transmission shaft (4) are respectively arranged on the inner walls of the first accommodating groove (11) and the second accommodating groove (21) through second bearings (45).

7. The mechanical transmission gearbox of claim 1, wherein: the two ends of the output shaft (5) respectively penetrate through the first shell (1) and the second shell (2) and are respectively provided with an output flange (52) for being connected with wheels.

8. The mechanical transmission gearbox according to any one of claims 1 to 7, characterised in that: the input shaft (3), the transmission shaft (4) and the output shaft (5) are parallel and coplanar.

9. The mechanical transmission gearbox according to any one of claims 1 to 7, characterised in that: the clutch mechanism (6) comprises a clutch gear ring (61) and an operation assembly (62) for enabling the clutch gear ring (61) to slide, a first clutch gear (411) and a second clutch gear (421) are respectively arranged on opposite sides of the first transmission gear (41) and the second transmission gear (42), the third transmission gear (43) is located between the first clutch gear (411) and the second clutch gear (421), and the clutch gear ring (61) is in sliding engagement with the third transmission gear (43) and can slide to be engaged with the first clutch gear (411) or the second clutch gear (421).

10. The mechanical transmission gearbox of claim 9, wherein: the operation assembly (62) comprises a shifting fork (621), a shifting rod (622) arranged on the second shell (2) in a sliding mode and a gear shifting oil cylinder (623) used for driving the shifting rod (622) to slide, the gear shifting oil cylinder (623) is arranged on the outer side of the second shell (2), and the shifting rod (622) is connected with the clutch gear ring (61) through the shifting fork (621).