Novel electric gearbox and loader

Abstract

The utility model discloses a novel electric gearbox and a loader, and the novel electric gearbox comprises a gearbox body, the interior of the gearbox body is hollow to form a first accommodating cavity, and the gearbox body is provided with an opening; the gearbox cover is located at the opening of the gearbox body and used for sealing the first containing cavity; the interior of the transmission box body is hollow to form a second accommodating cavity, and the transmission box body is provided with an opening; the transmission box cover is located at the opening of the transmission box body and used for sealing the second containing cavity; wherein the transmission box body is arranged above one side of the gearbox body, and at least part of the transmission box body is in contact with the gearbox body. The problem that an oil pump and a motor need to be rearranged can be solved, through the transmission box body and the gearbox body which are integrally formed, other space is not occupied, the manufacturing cost is low, overhauling is convenient through an overhauling opening, the efficiency is improved, the cost is lower, and the structure is simple due to the fact that a disc brake is adopted.

Description

Technical Field

[0001] The utility model relates to the technical field of gearboxes, in particular to a novel electric gearbox and a loader. Background Art

[0002] Existing electric loaders are all manufactured based on the original gearbox technology, and the positions of the oil pump and the motor need to be rearranged, occupying other space on the frame, which is not conducive to the overall layout of the vehicle and increases the manufacturing cost of the vehicle. Based on this, a new electric gearbox and loader are designed. Utility Model Content

[0003] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides a new electric gearbox and loader. The problem that the oil pump and the motor need to be rearranged can be solved. The transmission case and the gearbox case are formed in one piece, which does not occupy the remaining space, and the manufacturing cost is low. The inspection port is convenient for maintenance, which improves efficiency, and the use of disc brakes has lower cost and simple structure.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] A novel electric gearbox comprises: a gearbox body, the interior of which is hollow to form a first accommodating chamber, and the gearbox body has an opening; a gearbox cover, the gearbox cover is located at the opening of the gearbox body and is used to close the first accommodating chamber; a transmission case, the interior of which is hollow to form a second accommodating chamber, and the transmission case has an opening; a transmission case cover, the transmission case cover is located at the opening of the transmission case and is used to close the second accommodating chamber; wherein the transmission case is arranged above one side of the gearbox body, and the transmission case is at least partially in contact with the gearbox body.

[0006] By adopting the above solution, the problem of the need to rearrange the oil pump and the motor can be solved. The transmission case and the gearbox case are formed in one piece, so no other space is occupied, and the manufacturing cost is low. The inspection port is used for easy maintenance, which improves efficiency. The use of disc brakes has lower costs and a simple structure.

[0007] Furthermore, the transmission housing and the gearbox housing are integrally formed.

[0008] By adopting the above solution, the one-piece structure is firm, easy to produce and cost-saving.

[0009] Furthermore, an upper-mounted motor is arranged on the outer side of one side of the transmission housing, and an output shaft of the upper-mounted motor extends into the second accommodating cavity and is transmission-connected with an upper-mounted gear.

[0010] Furthermore, a working oil pump and a steering oil pump are arranged on the outer side of the other side of the transmission case cover, and the working oil pump and the steering oil pump extend into the second accommodating cavity and are respectively connected to the working gear and the steering gear.

[0011] By adopting the above scheme, the working oil pump and the steering oil pump are used to provide working and steering power to the loader.

[0012] Furthermore, the upper gear is located between the working gear and the steering gear, and the upper gear is meshed and connected with the working gear and the steering gear respectively.

[0013] By adopting the above scheme, the upper gear of the upper motor drives the working oil pump and the steering oil pump to provide working and steering power for the loader.

[0014] Furthermore, a transmission gear assembly is disposed inside the first accommodating cavity, a travel motor is disposed outside one side of the gearbox body, and an output shaft of the travel motor extends into the first accommodating cavity and is transmission-connected to the transmission gear assembly.

[0015] Furthermore, an output shaft is arranged through the gearbox body and the gearbox cover, a gear is arranged on the outer surface of the output shaft for transmission connection with the transmission gear assembly, and a first output flange and a second output flange are arranged at both ends of the output shaft respectively.

[0016] By adopting the above solution, the functions of working and walking are realized through the first output flange and the second output flange.

[0017] Furthermore, two opposite sides of the gearbox body are provided with supports, and one opposite side of the gearbox body is provided with an inspection port detachably connected to the gearbox body.

[0018] By adopting the above scheme, the gearbox body can be supported by the support, thereby increasing the reliability and durability of the gearbox body installation, and by providing an inspection port, it is convenient to remove the inspection port for inspection, thereby improving efficiency.

[0019] Furthermore, a disc brake bracket is provided on one opposite surface of the gearbox body, and a disc brake is provided on the disc brake bracket, and the disc brake is used to clamp the first output flange.

[0020] By adopting the above solution, the disc brake is used to achieve a braking effect, with low manufacturing cost and simple structure.

[0021] The utility model also provides a loader, comprising the novel electric gearbox as described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0023] Figure 2 It is a side structural schematic diagram of an embodiment of the utility model;

[0024] Figure 3 It is a front view of an embodiment of the utility model;

[0025] Among them, the meanings of the accompanying drawings are as follows: 11, gearbox body; 12, gearbox cover; 21, transmission box body; 22, transmission box cover; 3, upper motor; 41, working oil pump; 42, steering oil pump; 5, travel motor; 6, output shaft; 71, first output flange; 72, second output flange; 73, support; 74, inspection port; 75, disc brake bracket; 76, disc brake; 81, gearbox oil level dipstick; 82, oil pump oil level dipstick; 83, speed sensor; 84, shift control device. DETAILED DESCRIPTION

[0026] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] See also Figure 1-Figure 3The utility model discloses a novel electric gearbox and loader: comprising a gearbox body 11, a gearbox cover 12, a transmission case 21 and a transmission case cover 22, wherein the gearbox body 11 is hollow inside to form a first accommodating chamber, and the gearbox body 11 has an opening, the transmission case 21 is hollow inside to form a second accommodating chamber, and the transmission case 21 has an opening, and the gearbox cover 12 is arranged at the opening of the gearbox body 11 to close the first accommodating chamber; the transmission case cover 22 is arranged at the opening of the transmission case 21 to close the second accommodating chamber; and the gearbox cover 12 is connected to the gearbox body 11 by screws, and the transmission case cover 22 is connected to the transmission case 21 by screws; wherein the transmission case 21 is arranged above one side of the gearbox body 11, and the transmission case 21 is at least partially in contact with the gearbox body 11, and more specifically, the transmission case 21 and the gearbox body 11 are integrally formed, and the integrally formed structure is firm, easy to produce, and cost-saving.

[0031] In this embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, an upper motor 3 is arranged on the outer side of one side of the transmission case 21, and the output shaft 6 of the upper motor 3 extends into the second accommodating chamber and is connected to the upper gear in a transmission manner. A working oil pump 41 and a steering oil pump 42 are arranged on the outer side of the other side of the transmission case cover 22, and the working oil pump 41 and the steering oil pump 42 are arranged horizontally, and the working oil pump 41 and the steering oil pump 42 extend into the second accommodating chamber and are connected to the working gear and the steering gear respectively, and the working and steering power are provided to the loader through the working oil pump 41 and the steering oil pump 42. More specifically, the upper gear is located between the working gear and the steering gear, and the upper gear is meshed and connected with the working gear and the steering gear respectively. The upper gear of the upper motor 3 drives the working oil pump 41 and the steering oil pump 42 to provide the loader with working and steering power.

[0032] In this embodiment, see Figure 1 and Figure 2 As shown, a transmission gear assembly is arranged inside the first accommodating cavity, a travel motor 5 is arranged on the outer side of one side of the gearbox body 11, an output shaft 6 of the travel motor 5 extends into the first accommodating cavity and is in transmission connection with the transmission gear assembly, an output shaft 6 is arranged through the gearbox body 11 and the gearbox cover 12, a gear is arranged on the outer surface of the output shaft and is in transmission connection with the transmission gear assembly, and a first output flange 71 and a second output flange 72 are arranged at both ends of the output shaft 6. In this embodiment, it should be noted that the transmission gear assembly is a two-stage transmission, and the speed and torque are transmitted to the first output flange 71 and the second output flange 72 through the secondary transmission to the output shaft 6 to achieve the working and walking effects.

[0033] Specifically, the working oil pump, steering oil pump and upper motor 3 are arranged at appropriate positions of the frame, and the upper motor 3 and the travel motor 5 are arranged in a vertical manner of stacking up and down, and the transmission gear assembly inside the gearbox body 11 is also arranged in a vertical manner of stacking up and down, which greatly saves the spatial position layout of various components of the electric loader and makes the layout of the electric loader more reasonable.

[0034] Specifically, in this embodiment, the upper motor 3 can stop the motor when the hydraulic system is not needed to work, which saves electricity, and the transmission gear assembly and the working gear, steering gear and upper gear in the gearbox body 11 are not matched together, which can reduce the matching processing accuracy. When the transmission gear assembly in the gearbox body 11 is damaged, it will not affect the working gear, steering gear and upper gear; similarly, when the working gear, steering gear and upper gear are damaged, it will not affect the transmission gear assembly.

[0035] In this embodiment, the transmission gear assembly and the working gear, the steering gear and the upper gear all have independent cavities, namely, the first accommodating cavity and the second accommodating cavity. A bearing seat is provided at the connection between the input shaft of the transmission gear assembly in the gearbox body 11 and the gearbox body 11, and the bearing seat is provided with a storage groove. When the output shaft gear in the transmission gear assembly rotates and splashes lubricating oil, the gear and bearing of the input shaft are lubricated. The splashed lubricating oil flows into the storage groove and can play a lubricating role. In addition, the gearbox body 11 adds forced lubrication at the input shaft bearing, which can better protect the bearing. The upper gear of the output shaft of the upper motor 3 also relies on the gear rotation for splash lubrication. In addition, a bearing is provided at the connection between the output shaft of the upper motor 3 and the transmission case 21, and forced lubrication is added at the output shaft bearing.

[0036] Optionally, supports 73 are provided on two opposite sides of the gearbox body 11, and the supports 73 are connected to the gearbox body 11 by screws. A through hole is provided in the center of the support 73, and the gearbox body 11 can be supported by the support 73, thereby increasing the reliability and durability of the installation of the gearbox body 11; an inspection port 74 detachably connected to the gearbox body 11 is provided on one opposite side of the gearbox body 11, and the inspection port 74 is provided to facilitate removal of the inspection port 74 for maintenance, thereby improving efficiency.

[0037] Optionally, a disc brake bracket 75 is provided on the opposite side of the gearbox body 11, and a disc brake 76 is provided on the disc brake bracket 75. The disc brake 76 is used to clamp the first output flange 71. The disc brake 76 achieves a braking effect, with low manufacturing cost and simple structure.

[0038] Optionally, an oil pump oil level dipstick 82 is provided on the transmission housing 21 , and a transmission oil level dipstick 81 is provided on the transmission housing 11 .

[0039] Optionally, the gearbox body 11 further includes a rotation speed sensor 83 for monitoring the rotation speed of the transmission gear assembly.

[0040] Optionally, the gearbox body 11 is further provided with a shift control device 84 for changing the vehicle speed and torque.

[0041] An embodiment of the utility model further provides a loader, comprising the new electric gearbox as described in any one of the above items.

[0042] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A new type of electric gearbox, characterized in that: include: A gearbox body, wherein the interior of the gearbox body is hollow to form a first accommodating cavity, and the gearbox body has an opening; A gearbox cover, the gearbox cover is located at the open opening of the gearbox body and is used to close the first accommodating cavity; A transmission housing, wherein the interior of the transmission housing is hollow to form a second accommodation chamber, and the transmission housing has an opening; A transmission case cover, the transmission case cover is located at the opening of the transmission case body and is used to close the second accommodating cavity; Wherein, the transmission housing is arranged above one side of the gearbox housing, and the transmission housing is at least partially in contact with the gearbox housing.

2. A new electric gearbox according to claim 1, characterized in that: The transmission housing and the gearbox housing are integrally formed.

3. A new electric gearbox according to claim 1, characterized in that: An upper mounted motor is arranged on the outer side of one side of the transmission housing, and an output shaft of the upper mounted motor extends into the second accommodating cavity and is transmission-connected with an upper mounted gear.

4. A new electric gearbox according to claim 3, characterized in that: A working oil pump and a steering oil pump are arranged on the outer side of the other side of the transmission case cover. The working oil pump and the steering oil pump extend into the second accommodating chamber and are respectively connected to the working gear and the steering gear.

5. A new electric gearbox according to claim 4, characterized in that: The upper mounted gear is located between the working gear and the steering gear, and the upper mounted gear is meshedly connected with the working gear and the steering gear respectively.

6. A new electric gearbox according to claim 1, characterized in that: A transmission gear assembly is disposed inside the first accommodating chamber, a travel motor is disposed outside one side of the gearbox body, and an output shaft of the travel motor extends into the first accommodating chamber and is transmission-connected to the transmission gear assembly.

7. A new electric gearbox according to claim 6, characterized in that: An output shaft is arranged through the gearbox body and the gearbox cover, a gear is arranged on the outer surface of the output shaft and is transmission-connected with the transmission gear assembly, and a first output flange and a second output flange are arranged at both ends of the output shaft respectively.

8. A novel electric gearbox according to claim 1, characterized in that: Two opposite sides of the gearbox body are provided with supports, and one opposite side of the gearbox body is provided with an inspection port which is detachably connected to the gearbox body.

9. A new electric gearbox according to claim 7, characterized in that: A disc brake bracket is arranged on one opposite side of the gearbox body, and a disc brake is arranged on the disc brake bracket. The disc brake is used to clamp the first output flange.

10. A loader, characterized in that: It comprises a new electric gearbox as claimed in any one of claims 1 to 9.

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