CN216200027U - Tank parking braking device of electric drive system mounted on concrete mixer truck - Google Patents
Tank parking braking device of electric drive system mounted on concrete mixer truck Download PDFInfo
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- CN216200027U CN216200027U CN202122679515.7U CN202122679515U CN216200027U CN 216200027 U CN216200027 U CN 216200027U CN 202122679515 U CN202122679515 U CN 202122679515U CN 216200027 U CN216200027 U CN 216200027U
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Abstract
The utility model discloses a tank parking braking device of an electric drive system mounted on a concrete mixer truck, which comprises a motor, a speed reducer and a braking mechanism, wherein the braking mechanism is arranged between the motor and the speed reducer and comprises a connecting plate, a braking shell, a braking piston, a multi-piece friction group, an oil pipe, a spring, a sealing ring and a braking shaft, one end of the connecting plate is connected with the motor, the other end of the connecting plate is connected with the speed reducer, the braking shell is positioned in the connecting plate, and a rolling mechanism is arranged between the braking piston and the braking shell; when the tank body rotates, under the condition of oil pressure (or air pressure), the elastic force of the spring is overcome, the brake piston slides to release braking, when the tank body needs to stop rotating or the work is finished, the brake piston is attached to the pressing multi-piece friction group to perform friction braking, the purpose of locking the brake shaft is achieved, the braking force is used for overcoming the eccentricity of the tank body, the input shaft of the motor is not stressed and is in a free state, and safety accidents caused by the rotation of the tank body are prevented.
Description
Technical Field
The utility model belongs to the technical field of tank body braking of a concrete mixer truck, and particularly relates to a tank body parking braking device of an electric driving system mounted on the concrete mixer truck.
Background
When the tank body of the mixer truck is stopped in the discharging process, the eccentric distance generated by uneven distribution of concrete in the tank body needs to be overcome by large torque. Or after the operation of the mixer truck is finished and the whole truck is powered off, the empty tank needs to be locked by torsion, so that the tank body is prevented from rotating to cause safety accidents. At present, the braking function is that the reverse torque generated by the reverse current of the motor and the eccentricity of the tank body are mutually offset, but the scheme consumes electric energy, and the empty tank cannot be locked after the power failure of the whole vehicle, so that certain potential safety hazards exist.
The existing mixer truck tank body is unloaded, the tank body rotates after the whole truck is powered off, and potential safety hazards exist when the tank body rotates, so that the parking brake device for the electric drive system tank body mounted on the concrete mixer truck is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tank parking braking device of an electric drive system on a concrete mixer truck, which aims to solve the problem that the tank rotates after the power of the whole truck is cut off and potential safety hazards exist in the rotation of the tank in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a concrete mixer truck facial make-up electric drive system jar body parking arresting gear, includes motor, speed reducer and arrestment mechanism, arrestment mechanism sets up between motor and speed reducer, arrestment mechanism includes connecting plate, braking casing, braking piston, multi-disc friction pack, oil pipe, spring, sealing ring and brake axle, the one end and the motor of connecting plate are connected, the other end and the speed reducer of connecting plate are connected, the braking casing is located inside the connecting plate, be equipped with rolling mechanism between braking piston and the braking casing, rolling mechanism includes inner ring, outer loop and six universal balls, the outer loop is located the internal surface of spring, the inner ring is located the surface of braking piston, six universal ball equipartition is at the outer loop internal surface.
Preferably, the motor is provided with an input shaft, the speed reducer is provided with a planetary gear set, and the braking mechanism is connected with the input shaft and the planetary gear set through a braking shaft.
Preferably, the brake piston is located inside the brake housing, the spring is located inside the brake piston, the brake piston is located outside the brake shaft, and the brake piston is movably connected with the brake housing.
Preferably, the brake piston and the sealing ring form a sealing cavity in the brake housing, and the oil pipe is communicated with the sealing cavity.
Preferably, the multi-piece friction set is located inside the brake housing, the multi-piece friction set is located outside the brake shaft, and the brake piston is attached to the multi-piece friction set.
Preferably, the outer surface of the inner ring is provided with a locating groove in a semi-cylindrical shape, and the universal ball comprises a ball seat and a ball body, wherein the ball body is located in the locating groove.
Preferably, the sealing ring is provided with a limiting ring, the inner surface of the brake shell is provided with an annular groove, and the limiting ring is matched with the annular groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the arranged brake mechanism, when the tank body rotates, under the oil pressure (or air pressure), the elastic force of the spring is overcome, the brake piston slides, the brake is released, when the tank body needs to stop rotating or the operation is finished, the brake piston is attached to the pressing multi-piece friction group for friction brake, the purpose of locking the brake shaft is achieved, the brake force is used for overcoming the eccentric distance of the tank body, the input shaft of the motor is not stressed and is in a free state, and the safety accident caused by the rotation of the tank body is prevented.
2. Through inner ring, outer loop and the universal ball that sets up, the spheroid of universal ball is tangent with the inner ring, and the frictional force between the spheroid of universal ball and the inner ring is little, does benefit to the activity of brake piston, avoids brake piston surface to be infected with the dust and then increases frictional force, influences the gliding smooth and easy degree of brake piston.
3. Through the sealing ring and the limiting ring which are arranged, the limiting ring is embedded into the inner surface of the brake shell, and the sealing ring is tightly attached to the brake shell.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the outer ring of the present invention;
FIG. 3 is a schematic cross-sectional view of the brake housing of the present invention;
in the figure: 1. a motor; 2. a connecting plate; 3. a spring; 4. a brake piston; 5. an oil pipe; 6. a brake housing; 7. a multi-piece friction pack; 8. a brake shaft; 9. a seal ring; 10. an input shaft; 11. a speed reducer; 12. an inner ring; 13. an outer ring; 14. a universal ball; 15. a limit ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 to 3, the present invention provides a technical solution: a tank parking brake device of an electric drive system arranged on a concrete mixer truck comprises a motor 1, a speed reducer 11 and a brake mechanism, wherein the brake mechanism is arranged between the motor 1 and the speed reducer 11 and comprises a connecting plate 2, a brake shell 6, a brake piston 4, a multi-plate friction group 7, an oil pipe 5, a spring 3, a sealing ring 9 and a brake shaft 8, one end of the connecting plate 2 is connected with the motor 1, the other end of the connecting plate 2 is connected with the speed reducer 11, the brake mechanism can also be arranged at the input end of the speed reducer 11 in an embedded mode or at the output end of the speed reducer 11, the brake shell 6 is arranged inside the connecting plate 2, the brake piston 4 is arranged inside the brake shell 6, the spring 3 is arranged inside the brake piston 4, the spring 3 is arranged on the back pressure side of the brake piston 4, the brake piston 4 is arranged on the outer side of the brake shaft 8, and the brake piston 4 is movably connected with the brake shell 6, the braking piston 4 moves, the spring 3 generates elastic force after being compressed, the braking piston 4 compresses the multi-piece friction group 7 under the action of the elastic force of the spring 3, the braking shaft 8 is locked, the braking force is used for overcoming the eccentricity of the tank body, the input shaft 10 of the motor 1 is not stressed and is in a free state, a rolling mechanism is arranged between the braking piston 4 and the braking shell 6, the rolling mechanism comprises an inner ring 12, an outer ring 13 and six universal balls 14, the outer ring 13 is located on the inner surface of the spring 3, the inner ring 12 is located on the outer surface of the braking piston 4, in the moving process of the braking piston 4, the friction force between the ball body of the universal balls 14 and the inner ring 12 is small, the movement of the braking piston 4 is facilitated, and the six universal balls 14 are uniformly distributed on the inner surface of the outer ring 13.
In the embodiment, an input shaft 10 is arranged on a motor 1, a planetary gear set is arranged on a speed reducer 11, a braking mechanism is connected with the input shaft 10 and the planetary gear set through a braking shaft 8, a braking piston 4 is positioned inside a braking shell 6, a spring 3 is positioned inside the braking piston 4, the spring 3 is arranged on the back pressure side of the braking piston 4, the braking piston 4 is positioned outside the braking shaft 8, the braking piston 4 is movably connected with the braking shell 6, the braking piston 4 moves and generates elastic force after being compressed, the braking piston 4 compresses a multi-sheet friction set 7 under the action of the elastic force of the spring 3 to lock the braking shaft 8, the braking force is used for overcoming the eccentricity of a tank body, the input shaft 10 of the motor 1 is not stressed and is in a free state, the braking piston 4 and a sealing ring 9 form a sealing cavity inside the braking shell 6, an oil pipe 5 is communicated with the sealing cavity, and the parking braking device of the electric drive system tank body is communicated through an external interface, the multi-piece friction set 7 is located inside the brake shell 6, the multi-piece friction set 7 is located on the outer side of the brake shaft 8, and the brake piston 4 is attached to the multi-piece friction set 7.
In this embodiment, the outer surface of the inner ring 12 is provided with a semi-cylindrical positioning groove, the universal ball 14 includes a ball seat and a ball body, the ball body is located in the positioning groove, and in the moving process of the brake piston 4, the friction force between the ball body of the universal ball 14 and the inner ring 12 is small, which is beneficial to the movement of the brake piston 4.
In this embodiment, the sealing ring 9 is provided with a limiting ring 15, the inner surface of the brake housing 6 is provided with a ring groove, the limiting ring 15 is matched with the ring groove, and the sealing ring 9 is tightly attached to the brake housing 6.
The working principle and the using process of the utility model are as follows:
the parking brake device can be designed to be normally closed or normally open, for example, when the tank body rotates, oil pressure (or air pressure) reaches a sealing cavity between the brake piston 4 and the brake shell 6 through the oil pipe 5, the brake piston 4 slides to release braking by overcoming the elastic force of the spring 3, the power of the motor 1 is transmitted to the brake shaft 8 through the input shaft 10 and then transmitted to the planetary gear system, and finally the power is transmitted to the tank body to drive the tank body to rotate;
when the tank body needs to stop rotating or the whole vehicle needs to be powered off after work is finished, oil pressure (or air pressure) is relieved, the brake piston 4 slides and resets under the action of the elastic force of the spring 3, the brake piston 4 is attached to the pressing multi-piece friction group 7 to perform friction braking, the purpose of locking the brake shaft 8 is achieved, the braking force is used for overcoming the eccentricity of the tank body, and the input shaft 10 of the motor 1 is not stressed and is in a free state;
in the moving process of the brake piston 4, the ball body of the universal ball 14 is tangent to the inner ring 12, the friction force between the ball body of the universal ball 14 and the inner ring 12 is small, the movement of the brake piston 4 is facilitated, and the condition that the surface of the brake piston 4 is contaminated by dust to further increase the friction force and influence the sliding smoothness of the brake piston 4 is avoided;
the sealing ring 9 is provided with a limiting ring 15, the limiting ring 15 is embedded into the inner surface of the brake housing 6, and the sealing ring 9 is tightly attached to the brake housing 6.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a dress electric drive system jar body parking arresting gear on concrete mixer truck, includes motor (1), speed reducer (11) and arrestment mechanism, its characterized in that: the brake mechanism is arranged between the motor (1) and the speed reducer (11), the brake mechanism comprises a connecting plate (2), a brake shell (6), a brake piston (4), a multi-piece friction set (7), an oil pipe (5), a spring (3), a sealing ring (9) and a brake shaft (8), one end of the connecting plate (2) is connected with the motor (1), the other end of the connecting plate (2) is connected with the speed reducer (11), the brake housing (6) is positioned in the connecting plate (2), a rolling mechanism is arranged between the brake piston (4) and the brake housing (6), the rolling mechanism comprises an inner ring (12), an outer ring (13) and six universal balls (14), the outer ring (13) is located on the inner surface of the spring (3), the inner ring (12) is located on the outer surface of the brake piston (4), and the six universal balls (14) are uniformly distributed on the inner surface of the outer ring (13).
2. The electric drive system canister parking brake device on a concrete mixer truck according to claim 1, characterized in that: the brake mechanism is characterized in that an input shaft (10) is arranged on the motor (1), a planetary gear set is arranged on the speed reducer (11), and the brake mechanism is connected with the input shaft (10) and the planetary gear set through a brake shaft (8).
3. The electric drive system canister parking brake device on a concrete mixer truck according to claim 1, characterized in that: the brake piston (4) is located inside the brake housing (6), the spring (3) is located inside the brake piston (4), the brake piston (4) is located on the outer side of the brake shaft (8), and the brake piston (4) is movably connected with the brake housing (6).
4. The electric drive system canister parking brake device on a concrete mixer truck according to claim 1, characterized in that: the brake piston (4) and the sealing ring (9) form a sealing cavity in the brake shell (6), and the oil pipe (5) is communicated with the sealing cavity.
5. The electric drive system canister parking brake device on a concrete mixer truck according to claim 1, characterized in that: the multi-piece friction set (7) is located inside the brake shell (6), the multi-piece friction set (7) is located on the outer side of the brake shaft (8), and the brake piston (4) is attached to the multi-piece friction set (7).
6. The electric drive system canister parking brake device on a concrete mixer truck according to claim 1, characterized in that: the outer surface of the inner ring (12) is provided with a locating groove in a semi-cylindrical shape, and the universal ball (14) comprises a ball seat and a ball body, wherein the ball body is located in the locating groove.
7. The electric drive system canister parking brake device on a concrete mixer truck according to claim 1, characterized in that: be equipped with spacing ring (15) on sealing ring (9), the annular has been seted up to the internal surface of brake housing (6), spacing ring (15) and annular cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122679515.7U CN216200027U (en) | 2021-11-04 | 2021-11-04 | Tank parking braking device of electric drive system mounted on concrete mixer truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122679515.7U CN216200027U (en) | 2021-11-04 | 2021-11-04 | Tank parking braking device of electric drive system mounted on concrete mixer truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216200027U true CN216200027U (en) | 2022-04-05 |
Family
ID=80901219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122679515.7U Active CN216200027U (en) | 2021-11-04 | 2021-11-04 | Tank parking braking device of electric drive system mounted on concrete mixer truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216200027U (en) |
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2021
- 2021-11-04 CN CN202122679515.7U patent/CN216200027U/en active Active
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