CN216789057U - Gear box braking device of snow throwing vehicle - Google Patents
Gear box braking device of snow throwing vehicle Download PDFInfo
- Publication number
- CN216789057U CN216789057U CN202123307944.8U CN202123307944U CN216789057U CN 216789057 U CN216789057 U CN 216789057U CN 202123307944 U CN202123307944 U CN 202123307944U CN 216789057 U CN216789057 U CN 216789057U
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- gearbox
- brake
- electromagnetic valve
- air
- pneumatic
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Abstract
The utility model discloses a gearbox braking device of a snow throwing vehicle, and relates to the technical field of snow removing equipment; the pneumatic brake comprises a brake disc and a pneumatic brake, wherein friction plates of the pneumatic brake are arranged on two sides of the brake disc, the brake disc is connected with an output flange of a gearbox through a connecting flange, the pneumatic brake is connected with an air source through a pneumatic electromagnetic valve, and the pneumatic electromagnetic valve controls the on-off of a circuit through a relay; the coil of the relay is connected between the neutral gear switch of the gearbox and the ground, one end of a contact of the relay is connected with a power supply, the other end of the contact is connected with a circuit inlet of the pneumatic electromagnetic valve, and a circuit outlet of the pneumatic electromagnetic valve is grounded. Compared with the prior art, the utility model can solve the problem that when the load of the output end of the gearbox of the snow throwing vehicle is very small, the output shaft rotates when the gearbox is in neutral.
Description
Technical Field
The utility model relates to the technical field of snow removing equipment, in particular to a gearbox braking device of a snow throwing vehicle.
Background
In a snow throwing vehicle, a manual transmission is generally selected as a power output device for snow throwing operation, and the power transmission path is shown as fig. 1, namely an engine 101 → a clutch → a transmission 102 → a transmission shaft 103 → a snow throwing head 104. At present, in order to improve the gear shifting smoothness of the gearbox 102, a synchronizer structure is generally adopted to replace a middle shaft braking structure of the gearbox 102, and the synchronizer structure has the problems that when the engine 101 runs and a clutch is engaged, if the load of the output end of the gearbox 102 is small, even if the gearbox 102 is in a neutral gear, an output shaft can rotate. When the snow throwing vehicle is in non-snow-removing operation working conditions such as equipment debugging, operation inspection and the like, because the load of the snow throwing head 104 is very small, the condition that the output shaft rotates when the gearbox 102 is in a neutral position exists, the output shaft can drive the auger 105 of the snow throwing head 104 to rotate through the transmission shaft 103, if operators are not careful, the danger of mechanical injury can exist, and production safety accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a braking device for a gearbox of a snow throwing vehicle, which can solve the problem that when the load of the output end of the gearbox of the snow throwing vehicle is small, an output shaft rotates when the gearbox is in a neutral position.
In order to solve the problems, the utility model adopts the technical scheme that: the braking device of the gearbox of the snow throwing vehicle comprises a brake disc and an air compression brake, wherein friction plates of the air compression brake are arranged on two sides of the brake disc, the brake disc is connected with an output flange of the gearbox through a connecting flange, the air compression brake is connected with an air source through a pneumatic electromagnetic valve, and the pneumatic electromagnetic valve is controlled by a relay to be switched on and off; the coil of the relay is connected between the neutral gear switch of the gearbox and the ground, one end of a contact of the relay is connected with a power supply, the other end of the contact is connected with a circuit inlet of the pneumatic electromagnetic valve, and a circuit outlet of the pneumatic electromagnetic valve is grounded.
In the above technical solution, a more specific technical solution may also be: the pneumatic electromagnetic valve is also provided with an air inlet, a working port and an air outlet, the air inlet of the pneumatic electromagnetic valve is connected with the air source, and the working port of the pneumatic electromagnetic valve is connected with the air inlet of the air pressure brake.
Further, the air pressure brake is connected with the shell of the gearbox through a connecting piece.
Further, the connecting piece is a connecting bolt.
Further, the air source is an air cylinder.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the air brake is arranged on the shell of the gearbox, the brake disc is arranged on the output flange of the gearbox, the pneumatic electromagnetic valve is used for controlling the on-off of the air path between the air brake and the air source, and the neutral gear signal of the gearbox is read from the neutral gear switch of the gearbox and is used as the control signal of the pneumatic electromagnetic valve, so that the utility model can realize that when the gearbox is in neutral gear, the air brake automatically brakes, the output shaft of the gearbox stops rotating, the operator can safely carry out equipment debugging and operation inspection, when the gearbox is in non-neutral gear, the air brake automatically releases braking, the output shaft of the gearbox can freely rotate, and the equipment can normally operate.
Drawings
FIG. 1 is a schematic diagram of a snowplow power transmission path;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a control circuit diagram of the pneumatic solenoid valve.
Detailed Description
The utility model will be further described in detail with reference to the following examples:
the snow throwing vehicle gearbox braking device shown in fig. 2 and 3 comprises a brake disc 1 and an air compression brake 2, wherein a pair of friction plates 2-1 of the air compression brake 2 are arranged on two sides of the brake disc 1, the brake disc 1 is connected with an output flange of a gearbox 4 through a connecting flange 3, the air compression brake 2 is connected with an air source through a pneumatic electromagnetic valve 5, the pneumatic electromagnetic valve 5 controls the on-off of an air path between the air compression brake 2 and the air source, and the pneumatic electromagnetic valve 5 controls the on-off of a circuit through a relay 6; a coil of the relay 6 is connected between the neutral switch 7 of the gearbox and the ground, one end of a contact of the relay 6 is connected with a power supply 9 through a fuse 8, the other end of the contact is connected with a circuit inlet of the pneumatic electromagnetic valve 5, and a circuit outlet of the pneumatic electromagnetic valve 5 is grounded.
The pneumatic electromagnetic valve 5 is also provided with an air inlet, a working port and an air outlet, the air inlet of the pneumatic electromagnetic valve 5 is connected with an air source through an air pipe, and the working port of the pneumatic electromagnetic valve 5 is connected with the air inlet of the air brake 2 through the air pipe.
The air brake 2 is connected with a shell of the gearbox 4 through a connecting piece; the connecting piece is a connecting bolt. The air source is an air cylinder. The brake disc 1 and the friction plate 2-1 are both made of wear-resistant materials, and the hardness of the material of the brake disc 1 is greater than that of the material of the friction plate 2-1.
The working principle of the utility model is as follows: when the gearbox 4 is in a neutral state, the neutral switch 7 of the gearbox outputs high level, the coil of the relay 6 is electrified, the contact is closed, the pneumatic electromagnetic valve 5 is electrified to work, the air inlet and the working port of the pneumatic electromagnetic valve 5 are conducted, compressed air enters the pneumatic brake 2 from the air storage cylinder through the air pipe and the pneumatic electromagnetic valve 5, and the pneumatic brake 2 brakes to limit the rotation of the output shaft of the gearbox; when the gearbox 4 is in a non-neutral state, the neutral switch 7 of the gearbox outputs a low level, the coil of the relay 6 is powered off, the contact is opened, the pneumatic electromagnetic valve 5 is powered off, compressed air in the pneumatic brake 2 is exhausted through the exhaust port of the pneumatic electromagnetic valve 5, and the pneumatic brake 2 releases braking.
According to the utility model, the air brake 2 is arranged on the shell of the gearbox 4, the brake disc is arranged on the output flange of the gearbox 4, the pneumatic solenoid valve 5 is used for controlling the on-off of the air path between the air brake 2 and the air source, and the gearbox neutral signal is read from the gearbox neutral switch 7 and is used as the control signal of the pneumatic solenoid valve 5, so that the automatic braking of the air brake 2 can be realized when the gearbox 4 is in neutral, the output shaft of the gearbox stops rotating, an operator can safely carry out equipment debugging and operation inspection, when the gearbox 4 is in non-neutral, the air brake 2 automatically releases the braking, the output shaft of the gearbox can freely rotate, and the equipment can normally operate.
The brake disc 1 and the friction plate 2-1 are made of wear-resistant materials, the service cycle of the braking device is prolonged, the hardness of the material of the brake disc 1 is greater than that of the material of the friction plate 2-1, so that the brake disc 1 is more wear-resistant relative to the friction plate 2-1, after the air brake 2 is worn, only the friction plate 2-1 needs to be replaced, and the maintenance is convenient.
Claims (5)
1. The utility model provides a snow throwing car gearbox arresting gear which characterized in that: the brake comprises a brake disc and an air pressure brake, wherein friction plates of the air pressure brake are arranged on two sides of the brake disc, the brake disc is connected with an output flange of a gearbox through a connecting flange, the air pressure brake is connected with an air source through a pneumatic electromagnetic valve, and the pneumatic electromagnetic valve is controlled by a relay to be switched on and off; the coil of the relay is connected between the neutral gear switch of the gearbox and the ground, one end of a contact of the relay is connected with a power supply, the other end of the contact is connected with a circuit inlet of the pneumatic electromagnetic valve, and a circuit outlet of the pneumatic electromagnetic valve is grounded.
2. The snowplow gearbox brake assembly of claim 1, wherein: the pneumatic electromagnetic valve is also provided with an air inlet, a working port and an air outlet, the air inlet of the pneumatic electromagnetic valve is connected with the air source, and the working port of the pneumatic electromagnetic valve is connected with the air inlet of the air pressure brake.
3. A snow thrower gearbox braking device as claimed in claim 1 or 2, characterised in that: the air pressure brake is connected with the shell of the gearbox through a connecting piece.
4. A snow thrower gearbox brake as claimed in claim 3, characterised in that: the connecting piece is a connecting bolt.
5. The snowplow gearbox brake assembly of claim 4, wherein: the air source is an air cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123307944.8U CN216789057U (en) | 2021-12-27 | 2021-12-27 | Gear box braking device of snow throwing vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123307944.8U CN216789057U (en) | 2021-12-27 | 2021-12-27 | Gear box braking device of snow throwing vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216789057U true CN216789057U (en) | 2022-06-21 |
Family
ID=82008868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123307944.8U Active CN216789057U (en) | 2021-12-27 | 2021-12-27 | Gear box braking device of snow throwing vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216789057U (en) |
-
2021
- 2021-12-27 CN CN202123307944.8U patent/CN216789057U/en active Active
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