CN220770104U - Pure electric gearbox for heavy truck - Google Patents

Abstract

The utility model discloses a heavy truck pure electric gearbox, which belongs to the technical field of automobile gearboxes and comprises a front shell system, wherein one end of the front shell system is connected with a middle shell system, the middle shell system is connected with a transmission mechanism, the transmission mechanism is wrapped in the front shell system, one side of the transmission mechanism is provided with a lubricating mechanism, the lubricating mechanism is also connected with the middle shell system, the lubricating mechanism is wrapped in the middle shell system and the front shell system, a gear shifting mechanism is arranged above the transmission mechanism, the gear shifting mechanism is connected with the transmission mechanism, and the gear shifting mechanism is wrapped in the middle shell system and the front shell system. The pure electric gearbox with the heavy truck can meet the requirement of driving a new energy heavy truck type in the center of the current market when in use. The automatic gear shifting device realizes the automatic gear shifting of the electric control pneumatic, and has the advantages of being suitable for all large main engine factories of the whole vehicle, reliable in gear shifting, good in NVH performance, long in oil change period, reliable in performance and the like.

Description

Pure electric gearbox for heavy truck

Technical Field

The utility model relates to the technical field of automobile gearboxes, in particular to a heavy-duty purely electric gearbox.

Background

A gearbox is one of the core components of an automobile, which is a mechanism for changing rotational speed and torque from an engine, which can fix or shift the ratio of the output shaft to the input shaft. In recent years, with the development of industry and the continuous implementation of national 'double carbon' policies, new energy markets are prosperous and gradually represent prosperous trends, and various large host factories pay attention to the layout of new energy vehicle types in the field so as to preempt the markets and obtain the precedent. The traditional fuel vehicle gearbox is not suitable for new energy vehicle types, and is used for adapting to the industry innovation and enriching the gearbox type spectrum of our company, and the central driving type 4-gear pure special gearbox which is suitable for high-speed/low-speed motors is generated.

Disclosure of Invention

The utility model aims to provide a heavy-duty purely electric gearbox, which aims to solve the problem that the traditional fuel vehicle gearbox provided in the background art is not suitable for new energy vehicle types, and is used for adapting to the industry innovation and enriching gearbox type spectrums, and the central driving type 4-gear purely electric special gearbox which is suitable for a high-speed/low-speed motor.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pure electric gearbox of heavily blocking, includes preceding shell system, the one end of preceding shell system is connected with well shell system, and well shell system is connected with drive mechanism to drive mechanism is wrapped up in its inside by preceding shell system, one side of drive mechanism is provided with lubrication mechanism, and lubrication mechanism still is connected with well shell system, and lubrication mechanism is wrapped up in its inside by well shell system and preceding shell system, drive mechanism's top is equipped with gearshift, and gearshift is connected with drive mechanism, and gearshift is wrapped up in its inside by well shell system and preceding shell system.

Preferably, the middle shell system is of a semi-surrounding shell structure, a side suspension is arranged on the side face of the middle shell system, and a bottom suspension is arranged at the bottom end of the middle shell system.

Preferably, the transmission mechanism adopts a double intermediate shaft structure and a gear full-helical gear grinding process, and the two ends of the transmission mechanism are provided with a high-strength bearing a, a high-strength bearing b, a high-strength bearing c and a high-strength bearing d.

Preferably, the lubricating mechanism is internally provided with a double-steering oil pump, the double-steering oil pump is connected with an upper spray pipe, a lower spray pipe and a filter oil pipe which are arranged at one end of the lubricating mechanism, and the upper spray pipe, the lower spray pipe and the filter oil pipe are arranged around the transmission mechanism.

Preferably, the gear shifting mechanism adopts electric control pneumatic gear shifting, an auxiliary gas module arranged in the gear shifting mechanism is connected with a gear shifting cylinder, and two columnar gear shifting fork shafts are arranged in the gear shifting cylinder.

Preferably, each of the two shift shafts is provided with a C-shaped shift fork.

Preferably, a gear shifting interlocking mechanism is arranged between the two gear shifting fork shafts.

Compared with the prior art, the utility model has the beneficial effects that: the heavy-duty truck pure electric gearbox is reasonable and reliable in design, timely meets the requirement of a new energy heavy-duty truck type driven by the center of the current market, achieves automatic gear shifting of electric control pneumatic, and has the advantages of being suitable for a whole truck to be arranged and adapted to various large host factories, reliable in gear shifting, good in NVH performance, long in oil change period, reliable in performance and the like.

Drawings

FIG. 1 is a schematic diagram of an exploded construction of a part of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic diagram of a transmission mechanism according to the present utility model;

FIG. 4 is a schematic view of a lubrication mechanism according to the present utility model;

FIG. 5 is a schematic diagram of a shell system configuration of the present utility model;

fig. 6 is a schematic structural view of a gear shifting mechanism according to the present utility model.

In the figure: 1. a front shell system; 2. a middle shell system; 201. side suspension; 202. bottom suspension; 3. a transmission mechanism; 301. a high-strength bearing a; 302. a high-strength bearing b; 303. a high-strength bearing c; 304. a high-strength bearing d; 4. a lubrication mechanism; 401. a double steering oil pump; 402. a spray pipe is arranged; 403. a lower spray pipe; 404. a filter oil pipe; 5. a gear shifting mechanism; 501. an auxiliary gas module; 502. a shift cylinder; 503. a shift fork shaft; 504. a shift fork; 505. a gearshift interlock.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a pure electric gearbox of heavy truck, includes preceding shell system 1, the one end of preceding shell system 1 is connected with well shell system 2, and well shell system 2 is connected with drive mechanism 3 to drive mechanism 3 is wrapped up in its inside by preceding shell system 1, one side of drive mechanism 3 is provided with lubricated mechanism 4, and lubricated mechanism 4 still is connected with well shell system 2, and lubricated mechanism 4 is wrapped up in its inside by well shell system 2 and preceding shell system 1, the top of drive mechanism 3 is equipped with gearshift 5, and gearshift 5 is connected with drive mechanism 3, and gearshift 5 is wrapped up in its inside by well shell system 2 and preceding shell system 1.

The utility model designs a heavy truck pure electric gearbox, in the use process, the gearbox is mounted on a frame through a suspension arranged on a middle shell system 2, a transmission part 3 is connected with a motor, then power is transmitted to a driving shaft and a rear axle through the motor through a transmission mechanism 3, and then the vehicle is driven, in order to ensure that the driving motor is fast in response and high in rotating speed, the transmission mechanism 3 is composed of high-strength bearings, a double-intermediate shaft structural design is adopted, the bearing capacity of the double-intermediate shaft structural design is ensured, lubricating mechanism 4 is arranged, lubricating oil in the gearbox can be conveyed to all parts in the gearbox through pumping action, full lubrication of parts in the gearbox is ensured, and a filter element and a filter screen are arranged in the middle shell system 2, so that the oil change period can be improved, an electric control pneumatic parallel shaft type gear shifting mechanism 5 is adopted to replace a traditional small cover assembly to shift gears, the gearbox can be automatically shifted through the electric control pneumatic gear shifting mechanism 5, and the gearbox has the advantages of proper arrangement of the whole vehicle, reliable gear shifting, good NVH performance, long oil change period, reliable performance and the like.

Specifically, the middle shell system 2 is of a semi-enclosed shell structure, a side suspension 201 is arranged on the side surface of the middle shell system, a bottom suspension 202 is arranged at the bottom end of the middle shell system, the transmission can be mounted on a frame through the arranged side suspension 201 and the bottom suspension 202, the whole transmission can be conveniently arranged, each big host factory is adapted, and meanwhile the whole transmission is supported.

Specifically, the transmission mechanism 3 adopts a double-intermediate-shaft structure and a gear full-helical gear grinding process, and the two ends of the transmission mechanism 3 are provided with a high-strength bearing a301, a high-strength bearing b302, a high-strength bearing c303 and a high-strength bearing d304, so that when power is transmitted to a driving shaft and a rear axle to drive a vehicle through the transmission mechanism 3 by a motor, the transmission mechanism 3 can drive the motor to respond quickly and rotate at a high speed, and loads are shunted to the double-intermediate-shaft through an input shaft, so that the bearing capacity is high, the maximum input torque reaches 2500Nm, and the NVH performance is good.

Specifically, the inside of the lubrication mechanism 4 is provided with a double-steering oil pump 401, the double-steering oil pump 401 is connected with an upper spray pipe 402, a lower spray pipe 403 and a filter oil pipe 404 which are arranged at one end of the lubrication mechanism 4, and the upper spray pipe 402, the lower spray pipe 403 and the filter oil pipe 404 are arranged around the transmission mechanism 3, so that the double-steering oil pump 401 can be beneficial to shunting lubricating oil in the gearbox to a main shaft, the upper spray pipe 402, the lower spray pipe 403 and the filter oil pipe 404 through pumping action, lubrication of the transmission mechanism 3 and filtration of the lubricating oil are realized, and full lubrication of parts in the gearbox is ensured.

Specifically, the gear shifting mechanism 5 adopts electric control pneumatic gear shifting, an auxiliary gas module 501 arranged in the gear shifting mechanism is connected with a gear shifting cylinder 502, and two columnar gear shifting fork shafts 503 are arranged in the gear shifting cylinder 502, so that a whole vehicle gas source can enter the gear shifting cylinder 502 through the auxiliary gas module 501, and further the two gear shifting fork shafts 503 in the gear shifting cylinder 502 can be pushed to move.

Specifically, each of the two shift rails 503 is provided with a C-shaped shift fork 504, which is advantageous in that the shift fork 504 can be driven to displace by the movement of the shift rail 503 to complete the gear shifting operation of the transmission.

Specifically, the gear shifting interlocking mechanism 505 is arranged between the two gear shifting fork shafts 503, so that the two gear shifting fork shafts 503 are guaranteed to be in the correct positions during gear shifting through the arranged gear shifting interlocking mechanism 505, automatic gear shifting cannot be achieved in operation, and gear shifting is reliable.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. The utility model provides a pure electric gearbox of heavy truck, includes preceding shell system (1), its characterized in that: one end of the front shell system (1) is connected with the middle shell system (2), the middle shell system (2) is connected with the transmission mechanism (3), the transmission mechanism (3) is wrapped inside the front shell system (1), one side of the transmission mechanism (3) is provided with the lubricating mechanism (4), the lubricating mechanism (4) is further connected with the middle shell system (2), the lubricating mechanism (4) is wrapped inside the middle shell system (2) by the middle shell system (2) and the front shell system (1), a gear shifting mechanism (5) is arranged above the transmission mechanism (3), the gear shifting mechanism (5) is connected with the transmission mechanism (3), and the gear shifting mechanism (5) is wrapped inside the front shell system (1) by the middle shell system (2).

2. The heavy truck purely electric gearbox of claim 1, wherein: the middle shell system (2) is of a semi-surrounding shell structure, a side suspension (201) is arranged on the side face of the middle shell system, and a bottom suspension (202) is arranged at the bottom end of the middle shell system.

3. The heavy truck purely electric gearbox of claim 1, wherein: the transmission mechanism (3) adopts a double-intermediate-shaft structure and a gear full-helical gear grinding process, and high-strength bearings a (301), b (302), c (303) and d (304) are arranged at two ends of the transmission mechanism (3).

4. The heavy truck purely electric gearbox of claim 1, wherein: the inside of lubrication mechanism (4) is provided with two oil pumps (401) that turn to, and two oil pumps (401) are connected with last shower (402), lower shower (403) and the filter oil pipe (404) that set up in lubrication mechanism (4) one end to go up shower (402), lower shower (403) and filter oil pipe (404) and establish around drive mechanism (3).

5. The heavy truck purely electric gearbox of claim 1, wherein: the gear shifting mechanism (5) adopts electric control pneumatic gear shifting, an auxiliary gas module (501) arranged in the gear shifting mechanism is connected with a gear shifting cylinder (502), and two columnar gear shifting fork shafts (503) are arranged in the gear shifting cylinder (502).

6. The heavy truck purely electric gearbox of claim 5, wherein: a C-shaped shift fork (504) is mounted on each of the two shift rails (503).

7. A heavy truck purely electric gearbox according to claim 5 or 6, characterized in that: a gear shifting interlocking mechanism (505) is arranged between the two gear shifting fork shafts (503).