A mini electric four-wheel drive loader gearbox

Abstract

The present invention discloses a micro electric four-wheel drive loader gearbox, specifically relating to the technical field of gearboxes. It includes a box body. On one side inside the box body, an input shaft is fixedly installed. On the other side inside the box body, an output shaft is fixedly installed. In the middle of the box body, a speed-changing shaft is fixedly arranged. The input shaft, the output shaft, and the speed-changing shaft are all arranged in parallel. In the middle of the speed-changing shaft, a meshing gear is fixedly arranged. On one side of the meshing gear, a fast gear is arranged. In the present invention, the fork rotating rod on the fork rotating shaft is connected to the fork groove on the fork sleeve, driving the switching of the first connecting gear and the second connecting gear on the connecting rotating cylinder. When the first connecting gear is meshed and matched with the fast gear on the speed-changing shaft, and when the second connecting gear is meshed and matched with the slow gear on the speed-changing shaft, it is convenient to switch between fast and slow gears, with a simple structure and convenient operation, facilitating the use of the gearbox.

Description

Technical Field

[0001] The present invention relates to the technical field of gearboxes, and particularly to a gearbox for a micro electric four-wheel drive loader. Background Art

[0002] The gearbox mainly refers to the gearbox of an automobile, which is divided into two types: manual and automatic. The manual gearbox is mainly composed of gears and shafts, and generates speed change and torque change through different gear combinations. Loaders are mainly used to shovel, load, unload, transport soil and stone-like bulk materials, and can also complete the work of pushing soil, lifting, and loading and unloading other materials. The gearbox is a very important component on the loader, which can change the transmission ratio and play the role of expanding the torque and speed of the drive wheels.

[0003] The existing technology has the following deficiencies: The existing gearbox of the micro electric four-wheel drive loader has a complex structure and is inconvenient to operate, and it is inconvenient to switch the transmission state of large and small speed ratios and adjust the output torque, which affects the use of the gearbox. Summary of the Invention

[0004] Therefore, an embodiment of the present invention provides a gearbox for a micro electric four-wheel drive loader. The fork rotating rod on the fork rotating shaft is connected to the fork groove on the fork sleeve, and the first connecting gear and the second connecting gear on the connecting rotating cylinder are driven to switch movements. When the first connecting gear is meshed and matched with the fast gear on the transmission shaft, and when the second connecting gear is meshed and matched with the slow gear on the transmission shaft, the gear shifting operation of the slow gear is realized. It is convenient to switch between fast and slow gears, has a simple structure and is convenient to operate, which is convenient for the use of the gearbox, so as to solve the problems caused by the complex structure and inconvenient operation in the existing technology, the inconvenience of switching the transmission state of large and small speed ratios and adjusting the output torque, and the influence on the use of the gearbox.

[0005] To achieve the above object, the embodiments of the present invention provide the following technical solutions: A micro electric four-wheel drive loader gearbox, including a box body, on one side inside the box body, an input shaft is fixedly installed, on the other side inside the box body, an output shaft is fixedly installed, in the middle of the box body, a speed change shaft is fixedly arranged, the input shaft, the output shaft and the speed change shaft are all arranged in parallel, in the middle of the speed change shaft, a meshing gear is fixedly arranged, on one side of the meshing gear, a fast gear is arranged, on the other side of the meshing gear, a slow gear is arranged, on the surface of the output shaft, a transmission gear is fixedly arranged, the transmission gear meshes with the meshing gear, inside the box body, a support plate is fixedly arranged, between the top of the support plate and the inner wall of the box body, a support rod is fixedly arranged, on the surface of the support rod, a fork sleeve is sleeved, on the surface of the fork sleeve, a fork groove is fixedly arranged, at one end inside the box body, a fork rotating shaft is fixedly arranged, in the middle of the fork rotating shaft, a fork rotating rod is fixedly arranged, the fork rotating rod is arranged in a matching manner with the fork groove, at the bottom of the fork sleeve, a fork piece is fixedly arranged, the fork piece is movably provided with a connecting rotating cylinder, the connecting rotating cylinder is movably provided with the input shaft, on one side of the fork piece, a first connecting gear is arranged, on the other side of the fork piece, a second connecting gear is arranged, both the first connecting gear and the second connecting gear are fixedly connected with the connecting rotating cylinder, the first connecting gear is arranged in a matching manner with the fast gear, and the second connecting gear is arranged in a matching manner with the slow gear.

[0006] Further, on one side outside the box body, a reluctance motor is fixedly arranged, and the output end of the reluctance motor is fixedly connected with the input shaft.

[0007] Further, on the surface of the input shaft, shifting ridges are fixedly arranged, the shifting ridges are arranged collinearly with the axis direction of the input shaft, inside the connecting rotating cylinder, a shifting ridge groove is fixedly arranged, and the shifting ridges are arranged in a matching manner with the shifting ridge groove.

[0008] Further, the end of the fork rotating rod is spherical, and the fork groove is concave-shaped.

[0009] Further, on the top of the box body, a cover plate is fixedly arranged, the cover plate is fixedly connected with the box body by screws, the top end of the fork rotating shaft penetrates through the cover plate, and a gear shifting piece is fixedly arranged at the outer end of the fork rotating shaft.

[0010] Further, on the outside of the connecting rotating cylinder, a locking sleeve is fixedly arranged, inside the locking sleeve, a locking bolt is threadedly connected, and the locking bolt is arranged in a matching manner with the support rod.

[0011] Further, both ends of the output shaft penetrate through and extend out of the box body, on the outside of one end of the output shaft, a first fixing ear is arranged, on the outside of the other end of the output shaft, a second fixing ear is arranged, and both the first fixing ear and the second fixing ear are fixedly connected with the box body.

[0012] Further, a third fixing ear is fixedly arranged on one side surface of the box body.

[0013] The embodiments of the present invention have the following advantages:

[0014] 1. By setting a variable speed shaft, the transmission gear on the output shaft is meshed and connected with the engaging gear on the variable speed shaft to realize the transmission between the variable speed shaft and the output shaft. The fork rotating rod on the fork rotating shaft is connected with the fork groove on the fork sleeve. When the fork rotating shaft rotates, the fork rotating rod drives the fork sleeve to move on the support rod, and at the same time, the connecting rotating cylinder is driven to move on the input shaft by the fork piece, and the first connecting gear and the second connecting gear on the connecting rotating cylinder are switched. When the first connecting gear is meshed and matched with the fast gear on the variable speed shaft, the shifting operation of the fast gear is realized. When the second connecting gear is meshed and matched with the slow gear on the variable speed shaft, the shifting operation of the slow gear is realized. Compared with the existing gearbox, the fast and slow gear shifting is convenient, the structure is simple and the operation is convenient, which is convenient for the use of the gearbox;

[0015] 2. By setting a cover plate to seal the box body, it is convenient to repair the gearbox after removing the cover plate. By setting the first fixing ear, the second fixing ear and the third fixing ear to fixedly install the box body, it is convenient for the use of the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are merely exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained by extending according to the provided drawings without creative efforts.

[0017] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope that can be covered by the technical content disclosed in the present invention without affecting the effects that the present invention can produce and the purposes that can be achieved.

[0018] Figure 1 [[ID=XX]]It is the overall structural schematic diagram provided by the present invention;

[0019] Figure 2 It is the overall sectional structural schematic diagram provided by the present invention;

[0020] Figure 3 It is the top view structural schematic diagram provided by the present invention;

[0021] Figure 4 Schematic top view sectional structure provided by the present invention;

[0022] Figure 5 Schematic side view structure of the input shaft, output shaft and speed change shaft provided by the present invention;

[0023] Figure 6 Schematic side view structure provided by the present invention;

[0024] Figure 7 Schematic overall structure of the input shaft, output shaft and speed change shaft provided by the present invention;

[0025] In the figure: 1 housing, 2 input shaft, 3 output shaft, 4 speed change shaft, 5 meshing gear, 6 fast gear, 7 slow gear, 8 transmission gear, 9 support plate, 10 support rod, 11 fork sleeve, 12 fork groove, 13 fork rotating shaft, 14 fork rotating rod, 15 fork piece, 16 connecting rotating cylinder, 17 first connecting gear, 18 second connecting gear, 19 reluctance motor, 20 shift ridge teeth, 21 shift ridge groove, 22 cover plate, 23 gear shifting piece, 24 locking sleeve, 25 locking bolt, 26 first fixing ear, 27 second fixing ear, 28 third fixing ear. Specific embodiments

[0026] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0027] Refer to the attached drawings of the specification Figures 1-7, A micro electric four-wheel drive loader gearbox of this embodiment includes a box body 1. Inside one side of the box body 1, an input shaft 2 is fixedly installed. Inside the other side of the box body 1, an output shaft 3 is fixedly installed. In the middle of the box body 1, a speed-changing shaft 4 is fixedly arranged. The input shaft 2, the output shaft 3, and the speed-changing shaft 4 are all arranged in parallel. In the middle of the speed-changing shaft 4, a meshing gear 5 is fixedly arranged. On one side of the meshing gear 5, a fast gear 6 is arranged. On the other side of the meshing gear 5, a slow gear 7 is arranged. On the surface of the output shaft 3, a transmission gear 8 is fixedly arranged. The transmission gear 8 meshes with the meshing gear 5. Inside the box body 1, a support plate 9 is fixedly arranged. Between the top of the support plate 9 and the inner wall of the box body 1, a support rod 10 is fixedly arranged. On the surface of the support rod 10, a fork sleeve 11 is sleeved. On the surface of the fork sleeve 11, a fork groove 12 is fixedly arranged. At one end inside the box body 1, a fork rotating shaft 13 is fixedly arranged. In the middle of the fork rotating shaft 13, a fork rotating rod 14 is fixedly arranged. The fork rotating rod 14 is arranged to match the fork groove 12. At the bottom of the fork sleeve 11, a fork piece 15 is fixedly arranged. The fork piece 15 is movably provided with a connecting rotating cylinder 16. The connecting rotating cylinder 16 is movably arranged with the input shaft 2. On one side of the fork piece 15, a first connecting gear 17 is arranged. On the other side of the fork piece 15, a second connecting gear 18 is arranged. Both the first connecting gear 17 and the second connecting gear 18 are fixedly connected to the connecting rotating cylinder 16. The first connecting gear 17 is arranged to match the fast gear 6 on the speed-changing shaft 4. The second connecting gear 18 is arranged to match the slow gear 7 on the speed-changing shaft 4. When the first connecting gear 17 meshes and is connected to the fast gear 6 on the speed-changing shaft 4, the shifting operation of the fast gear is realized. When the second connecting gear 18 meshes and is connected to the slow gear 7 on the speed-changing shaft 4, the shifting operation of the slow gear is realized.

[0028] Furthermore, on one side outside the box body, a reluctance motor 19 is fixedly arranged. The output end of the reluctance motor 19 is fixedly connected to the input shaft 2. The input shaft 2 is driven to rotate by the reluctance motor 19 to realize the power input into the gearbox.

[0029] Furthermore, on the surface of the input shaft 2, shift teeth 20 are fixedly arranged. The shift teeth 20 are collinear with the axis direction of the input shaft 2. Inside the connecting rotating cylinder 16, a shift groove 21 is fixedly arranged. The shift teeth 20 are arranged to match the shift groove 21, which facilitates the transmission connection between the input shaft 2 and the connecting rotating cylinder 16 and also facilitates the left and right movement of the connecting rotating cylinder 16.

[0030] Furthermore, the end of the fork rotating rod 14 is spherical. The fork groove 12 is concave-shaped, which facilitates the connection between the fork rotating rod 14 and the fork groove 12. When the fork rotating rod 14 rotates, it drives the connecting rotating cylinder 16 to move on the input shaft 2.

[0031] Further, a cover plate 22 is fixedly arranged on the top of the box body 1. The cover plate 22 is fixedly connected to the box body 1 by screws. The top end of the shift fork rotating shaft 13 penetrates through the cover plate 22. A shift lever 23 is fixedly arranged at the outer end of the shift fork rotating shaft 13. The shift lever 23 is used to connect with the shifting device, which is convenient for the use and installation of the gearbox. The cover plate 22 closes the box body 1, which is convenient for repairing the gearbox after removing the cover plate 22.

[0032] Further, a locking sleeve 24 is fixedly arranged on the outer side of the connecting rotating cylinder 16. A locking bolt 25 is threadedly connected inside the locking sleeve 24. The locking bolt 25 is arranged to match the support rod 10. By tightening the locking bolt 25, adjusting the length of the locking bolt 25 extending into the locking sleeve 24, and adjusting the pressing force of the locking bolt 25 on the support rod 10, the friction force between the shift fork sleeve 11 and the support rod 10 can be adjusted, and the movement stability of the shift fork sleeve can be adjusted.

[0033] Further, both ends of the output shaft 3 penetrate through and extend out of the box body 1. A first fixing ear 26 is arranged on the outer side of one end of the output shaft 3, and a second fixing ear 27 is arranged on the outer side of the other end of the output shaft 3. Both the first fixing ear 26 and the second fixing ear 27 are fixedly connected to the box body 1. The first fixing ear 26 and the second fixing ear 27 are used to fix both sides of the box body 1 where the output shaft 3 extends out, improving the installation and fixing stability of the box body 1.

[0034] Further, a third fixing ear 28 is fixedly arranged on one side surface of the box body 1, which further improves the installation and fixing stability of the box body 1 by using the third fixing ear 28.

[0035] The specific implementation scenario is as follows: When the present invention uses a gearbox, the reluctance motor 19 drives the input shaft 2 to rotate, achieving power input into the gearbox. The shifting piece 23 is connected to the shifting device, facilitating the use and installation of the gearbox. The cover plate 22 seals the housing 1. The transmission gear 8 on the output shaft 3 is meshed and connected with the engaging gear 5 on the speed-changing shaft 4, achieving the transmission between the speed-changing shaft 4 and the output shaft 3. When performing a shifting operation, the shifting piece 23 is used to drive the fork rotating shaft 13 to rotate. The fork rotating rod 14 on the fork rotating shaft 13 is connected to the fork groove 12 on the fork sleeve 11. The fork rotating rod 14 is used to drive the fork sleeve 11 to move on the support rod 10. The locking bolt 25 is adjusted to extend into the locking sleeve 24, and the pressing force of the locking bolt 25 on the support rod 10 is adjusted, thereby adjusting the frictional force between the fork sleeve 11 and the support rod 10 and the movement stability of the fork sleeve. At the same time, the fork piece 15 drives the connecting rotating cylinder 16 to move on the input shaft 2, driving the movement of the first connecting gear 17 and the second connecting gear switch 18 on the connecting rotating cylinder 16. When the first connecting gear 17 is meshed and matched with the fast gear 6 on the speed-changing shaft 4, the shifting operation for the fast gear is achieved. When the second connecting gear 18 is meshed and matched with the slow gear 7 on the speed-changing shaft 4, the shifting operation for the slow gear is achieved. The fast and slow gear shifting is convenient, the structure is simple and the operation is convenient, facilitating the use of the gearbox. After removing the cover plate 22, the gearbox can be repaired.

[0036] Working principle:

[0037] Refer to the attached Figures 1-7 , when using the gearbox, the transmission gear 8 on the output shaft 3 is meshed and connected with the engaging gear 5 on the speed-changing shaft 4, achieving the transmission between the speed-changing shaft 4 and the output shaft 3. When performing a shifting operation, the shifting piece 23 is used to drive the fork rotating shaft 13 to rotate. The fork rotating rod 14 on the fork rotating shaft 13 is connected to the fork groove 12 on the fork sleeve 11. The fork rotating rod 14 is used to drive the fork sleeve 11 to move on the support rod 10. At the same time, the fork piece 15 drives the connecting rotating cylinder 16 to move on the input shaft 2, driving the movement of the first connecting gear 17 and the second connecting gear switch 18 on the connecting rotating cylinder 16. When the first connecting gear 17 is meshed and matched with the fast gear 6 on the speed-changing shaft 4, the shifting operation for the fast gear is achieved. When the second connecting gear 18 is meshed and matched with the slow gear 7 on the speed-changing shaft 4, the shifting operation for the slow gear is achieved. The fast and slow gear shifting is convenient, the structure is simple and the operation is convenient, facilitating the use of the gearbox.

[0038] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made thereto based on the present invention, which will be obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of the present invention claimed.

Claims

1. A micro electric four-wheel drive loader gearbox, comprising a box (1), characterized in that: An input shaft (2) is fixedly installed on one side of the housing (1), an output shaft (3) is fixedly installed on the other side of the housing (1), a speed change shaft (4) is fixedly arranged in the middle of the housing (1), the input shaft (2), the output shaft (3) and the speed change shaft (4) are all arranged in parallel, a meshing gear (5) is fixedly arranged in the middle of the speed change shaft (4), a fast gear (6) is arranged on one side of the meshing gear (5), and a slow gear (7) is arranged on the other side of the meshing gear (5), a transmission gear (8) is fixedly arranged on the surface of the output shaft (3), and the transmission gear (8) meshes with the meshing gear (5), a bracket plate (9) is fixedly arranged in the housing (1), a bracket rod (10) is fixedly arranged between the top of the bracket plate (9) and the inner wall of the housing (1), a shift fork sleeve (11) is sleeved on the surface of the bracket rod (10), and a shift fork sleeve (11) is fixedly arranged on the surface of the shift fork sleeve (11). A shift fork groove (12) is provided, a shift fork rotating shaft (13) is fixedly provided at one end of the interior of the housing (1), a shift fork rotating rod (14) is fixedly provided at the middle of the shift fork rotating shaft (13), the shift fork rotating rod (14) is matched with the shift fork groove (12), a shift fork plate (15) is fixedly provided at the bottom of the shift fork sleeve (11), the shift fork plate (15) is movably provided with a connecting rotating cylinder (16), the connecting rotating cylinder (16) is movably provided with the input shaft (2), a first connecting gear (17) is provided on one side of the shift fork plate (15), a second connecting gear (18) is provided on the other side of the shift fork plate (15), the first connecting gear (17) and the second connecting gear (18) are both fixedly connected to the connecting rotating cylinder (16), the first connecting gear (17) is matched with the fast gear (6), and the second connecting gear (18) is matched with the slow gear (7); A shift rib (20) is fixedly provided on the surface of the input shaft (2), and the shift rib (20) is arranged in a collinear manner with the axis of the input shaft (2); a shift rib groove (21) is fixedly provided inside the connecting rotating cylinder (16), and the shift rib (20) and the shift rib groove (21) are matched; The end of the shift fork rotating rod (14) is arranged in a spherical shape, and the shift fork groove (12) is arranged in a concave shape.

2. The micro electric four-wheel drive loader gearbox according to claim 1, characterized in that: A reluctance motor (19) is fixedly provided on one side of the exterior of the box, and an output end of the reluctance motor (19) is fixedly connected to the input shaft (2).

3. The micro electric four-wheel drive loader gearbox according to claim 1, characterized in that: A cover plate (22) is fixedly provided on the top of the box body (1), and the cover plate (22) is fixedly connected to the box body (1) by screws. The top end of the shift fork rotating shaft (13) passes through the cover plate (22), and a gear plate (23) is fixedly provided on the outer end of the shift fork rotating shaft (13).

4. The micro electric four-wheel drive loader gearbox according to claim 1, characterized in that: A locking sleeve (24) is fixedly provided on the outside of the connecting rotating cylinder (16), and a locking bolt (25) is provided inside the locking sleeve (24) in a threaded connection. The locking bolt (25) is matched with the bracket rod (10).

5. The micro electric four-wheel drive loader gearbox according to claim 1, characterized in that: Both ends of the output shaft (3) extend through the housing (1), a first fixing ear (26) is provided on the outside of one end of the output shaft (3), and a second fixing ear (27) is provided on the outside of the other end of the output shaft (3), and both the first fixing ear (26) and the second fixing ear (27) are fixedly connected to the housing (1).

6. The micro electric four-wheel drive loader gearbox according to claim 1, characterized in that: A third fixing ear (28) is fixedly provided on one side surface of the box body (1).

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