CN211765941U - High-efficient big load rear axle of electricity drive tracked vehicle - Google Patents
High-efficient big load rear axle of electricity drive tracked vehicle Download PDFInfo
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- CN211765941U CN211765941U CN202020369994.5U CN202020369994U CN211765941U CN 211765941 U CN211765941 U CN 211765941U CN 202020369994 U CN202020369994 U CN 202020369994U CN 211765941 U CN211765941 U CN 211765941U
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Abstract
The utility model belongs to the technical field of electric drive equipment, concrete technical scheme is: the high-efficiency large-load rear axle of electrically-driven crawler vehicle comprises symmetrically-arranged driving devices, each driving device comprises a direct-current motor and a speed reducer matched with the direct-current motor, a power output disc inside each speed reducer is connected with a power half axle through a half axle spline, the symmetrically-arranged power half axles are connected through driving bridge connecting pieces, the symmetrical speed reducers are connected through the driving bridge connecting pieces to form an integral structure, the driving bridge connecting pieces are supported on a longitudinal beam in the middle of a chassis through connecting piece fixing pieces, a power output end of each power half axle penetrates through a driving bridge pipe and then is connected with a disc brake disc, the disc brake disc and the crawler driving disc synchronously move under the action of friction force, power is output to the crawler driving disc through the power half axles, the crawler driving disc drives a crawler to run, the half axles and the speed reducers are matched more tightly, and simultaneously, a, The probability of breakage.
Description
Technical Field
The utility model belongs to the technical field of electric drive equipment, concretely relates to be applied to high-efficient big load transaxle on the crawler of electricity driving.
Background
The crawler belt replaces the traditional wheel type walking, the bearing capacity is large, the ground grabbing force is strong, the noise is low, meanwhile, the crawler belt type walking device increases the unit grounding area of the machine and the ground, and can adapt to complicated and bad road conditions such as paddy fields, marshes, muddy field roads, rugged mountain roads, soft grasslands, mountain forests, deserts, wet and slippery ice surfaces, snowfields and the like.
The rear axle of the heavy-load tracked vehicle is generally directly driven by the engine, the influence on the working state of the engine is large on a road with complex working conditions, the direct-drive structure of the engine is complex, the size is large, the degree of freedom of the arrangement of parts of the whole vehicle is poor, and in-situ self-rotation cannot be realized.
In order to solve the problems, an electric drive mode can be selected, most of the electric drive crawler chassis existing in the market adopts a worm gear speed reducer, the transmission efficiency is lower, the half shaft and the speed reducer are matched only with a light crawler, and the load capacity is increased to easily cause the damage of the speed reducer and the bending and breaking of the half shaft.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that prior art exists, the utility model provides a high-efficient big load rear axle of electric drive tracked vehicle, strong to operational environment's adaptability, the bearing capacity is big, stable in structure.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an efficient big load rear axle of electricity drive tracked vehicle, includes symmetrical arrangement's drive arrangement, drive arrangement include DC motor and with DC motor matched with speed reducer, link to each other through the semi-axis spline between the inside power take off dish of speed reducer and the power semi-axis, symmetrical arrangement's power semi-axis links to each other through drive axle connecting piece, the speed reducer of symmetry passes through drive axle connecting piece and connects and form an overall structure. The symmetrically arranged driving devices have stable power output, and synchronous power output is realized after the driving bridge connecting pieces are connected.
The driving axle connecting piece is supported on the longitudinal beam in the middle of the chassis through the connecting piece fixing piece, so that the operation stability of the driving axle connecting piece is ensured, and the longitudinal jumping of the driving axle connecting piece in the operation process is prevented.
The power output end of the power half shaft penetrates through the drive axle pipe and then is connected with the disc brake disc, the disc brake disc and the track driving disc synchronously move under the action of friction force, power is output to the disc brake disc through the power half shaft, the disc brake disc transmits the power to the track driving disc, and the track driving disc drives the track to run.
In order to ensure the stability of operation, the drive axle tube is supported on the axle tube fixing piece through the bearing longitudinal beam.
Wherein, the direct current motor is meshed with the speed reducer through a gear.
The speed reducer is a cylindrical gear speed reducer, the speed reducer is general gear transmission with 8-level precision, and the mechanical transmission efficiency is 0.97.
The power half shaft is made of 42CrMo steel, the number of splines of the shaft head of the half shaft is 6, and the strength of the power half shaft is ensured to the greatest extent.
The utility model discloses an electric drive guarantees the job stabilization nature of tracked vehicle under complicated operating mode, has increased the part of whole car and has arranged the degree of freedom.
The utility model discloses make semi-axis and speed reducer complex inseparabler, formed the bridge type stable structure simultaneously, reduced the speed reducer damage and the crooked, cracked probability of semi-axis.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a perspective view of the relative positions of the power half shaft and the speed reducer.
In the figure, 1 is a direct current motor, 2 is a speed reducer, 3 is a drive axle pipe, 4 is a drive axle connecting piece, 5 is a connecting piece fixing piece, 6 is an axle pipe fixing piece, 7 is a disc brake disc, 8 is a chassis middle longitudinal beam, 9 is a bearing longitudinal beam, 10 is a power half axle, 11 is a half axle shaft head, 12 is a half axle spline, 13 is a power output disc, and 14 is a crawler drive disc.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, an efficient large-load rear axle of an electrically-driven tracked vehicle comprises symmetrically-arranged driving devices, wherein each driving device comprises a direct-current motor 1 and a speed reducer 2 matched with the direct-current motor 1, a power output disc 13 inside each speed reducer 2 is connected with a power half shaft 10 through a half shaft spline 12, the symmetrically-arranged power half shafts 10 are connected through a driving bridge connecting piece 4, and the symmetrical speed reducers 2 are connected through the driving bridge connecting pieces 4 to form an integral structure. The symmetrically arranged driving devices have stable power output, and synchronous power output is realized after the driving bridge connecting pieces 4 are connected.
The driving axle connecting piece 4 is supported on the longitudinal beam 8 in the middle of the chassis through the connecting piece fixing sheet 5, so that the operation stability of the driving axle connecting piece 4 is ensured, and the longitudinal jumping of the driving axle connecting piece 4 in the operation process is prevented.
The power output end of the power half shaft 10 penetrates through the drive axle pipe 3 and then is connected with the disc brake disk 7, the disc brake disk 7 and the track driving disk 14 move synchronously under the action of friction force, power is output to the disc brake disk 7 through the power half shaft 10, the disc brake disk 7 transmits the power to the track driving disk 14, and the track driving disk 14 drives the track to run.
In order to ensure the stability of operation, the drive axle tube 3 is supported on the axle tube fixing plate 6 by a load-bearing longitudinal beam 9.
The direct current motor 1 and the speed reducer 2 are engaged with each other through a gear.
The speed reducer 2 is a cylindrical gear speed reducer, the speed reducer 2 is general gear transmission with 8-level precision, and the mechanical transmission efficiency is 0.97.
The power half shaft 10 is made of 42CrMo steel, the number of splines of the half shaft head 11 is 6, and the strength of the power half shaft 10 is ensured to the greatest extent.
Under normal operating condition, the tracked vehicle circular telegram, drive controller control direct current motor 1 rotates, and direct current motor 1 drives 2 internal gear of speed reducer and carries out corresponding speed reduction rotation back, and power take off dish 13 transmits big torsion for half axle spline 12, and half axle spline 12 transmits power to power semi-axis 10, and power semi-axis 10 transmits power for dish 7 of stopping, and dish 7 of stopping transmits power to track driving-disc 14 again. The double-power output device is connected through the power bridge connecting piece 4, power is synchronously transmitted to the crawler driving discs 14 on two sides through the rear axle, synchronous output of the power is achieved, output is stable, and the probability of damage of the speed reducer 2 and bending and breaking of half shafts is reduced.
The foregoing is considered as illustrative and not restrictive of the preferred embodiments of the invention, and any modifications, equivalents and improvements made within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (4)
1. The high-efficiency large-load rear axle of the electrically-driven tracked vehicle is characterized by comprising a driving device which is symmetrically arranged, wherein the driving device comprises a direct-current motor (1) and a speed reducer (2) which is matched with the direct-current motor (1), a power output disc (13) inside the speed reducer (2) is connected with a power half shaft (10) through a half shaft spline (12), the symmetrically-arranged power half shafts (10) are connected through a driving bridge connecting piece (4), the driving bridge connecting piece (4) is supported on a chassis middle longitudinal beam (8) through a connecting piece fixing piece (5), and the symmetrical speed reducers (2) are connected through the driving bridge connecting piece (4) to form an integral structure;
the power output end of the power half shaft (10) penetrates through the drive axle pipe (3) and then is connected with the disc brake disc (7), and the disc brake disc (7) and the track driving disc (14) synchronously move under the action of friction force;
the driving axle pipe (3) is supported on the axle pipe fixing piece (6) through the bearing longitudinal beam (9).
2. The efficient large-load rear axle of the electric crawler according to claim 1, wherein the direct current motor (1) is engaged with the speed reducer (2) through gears.
3. The efficient large-load rear axle of the electrically-driven crawler vehicle as recited in claim 2, wherein the speed reducer (2) is a cylindrical gear speed reducer, the speed reducer (2) is a general gear transmission with 8-level precision, and the mechanical transmission efficiency is 0.97.
4. The efficient large-load rear axle of the electric crawler according to claim 3, wherein the power half shaft (10) is made of 42CrMo steel, and the number of splines of the half shaft head (11) is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020369994.5U CN211765941U (en) | 2020-03-23 | 2020-03-23 | High-efficient big load rear axle of electricity drive tracked vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020369994.5U CN211765941U (en) | 2020-03-23 | 2020-03-23 | High-efficient big load rear axle of electricity drive tracked vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211765941U true CN211765941U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020369994.5U Active CN211765941U (en) | 2020-03-23 | 2020-03-23 | High-efficient big load rear axle of electricity drive tracked vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN211765941U (en) |
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2020
- 2020-03-23 CN CN202020369994.5U patent/CN211765941U/en active Active
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