CN203047232U - Delaying brake system of milling machine - Google Patents
Delaying brake system of milling machine Download PDFInfo
- Publication number
- CN203047232U CN203047232U CN 201320027112 CN201320027112U CN203047232U CN 203047232 U CN203047232 U CN 203047232U CN 201320027112 CN201320027112 CN 201320027112 CN 201320027112 U CN201320027112 U CN 201320027112U CN 203047232 U CN203047232 U CN 203047232U
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- China
- Prior art keywords
- brake
- switch
- milling machine
- machine
- delaying
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- Expired - Lifetime
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Abstract
The utility model discloses a delaying brake system of a milling machine. The delaying brake system of the milling machine comprises a power supply, a walking handle, a brake valve and a friction piece and is characterized by further comprising a micro-switch and a delaying relay module. The micro-switch is installed below the walking handle and is in electric connection with the delaying relay module. The delaying relay module is in electric connection with a brake valve. The brake valve controls the friction piece through a brake oil circuit. As the micro-switch and the delaying relay module are added, compared with the prior art, the delaying brake system of the milling machine can automatically brake after the machine stops. The phenomena that a machinist usually forgets to press a brake switch after stopping the machine in a slope and therefore risks may be brought by the milling machine which slides in the slope can be avoided. Meanwhile, the machinist does not press the brake switch to stop the machine in the process of machine walking so that the risk that the friction piece can be damaged by the machinist who stops the machine with the brake switch in the process of machine walking is eliminated.
Description
Technical field
The utility model relates to a kind of brake system, is specifically related to a kind of milling machine time-delay brake system.
Background technology
The principle of work of milling machine brake system is at present: after milling machine stops, the braking of car load realizes by friction lining locking front-wheel, concrete stopping brake process is directly to control the break-make of brake activation valve electromagnet by a switch, thereby the break-make of control brake circuit promotes the friction lining action, realizes that friction lining is to front-wheel locking and release.
There is following drawback in this kind brake system: 1) tractor driver usually forgets after stopping on hill and takes brake switch, causes milling machine to slide on the slope, and is very dangerous; When 2) tractor driver needs to stop when driving, usually select to take brake switch and stop, the front-wheel during the direct locking of friction lining is travelled then brings huge infringement to friction lining.
Summary of the invention
At the problem that above-mentioned prior art exists, the utility model provides a kind of milling machine time-delay brake system, is implemented in the function of the back automatic brake that stops, and eliminates the hidden danger of damaging friction lining in tractor driver's maloperation driving process by stopping-down simultaneously.
To achieve these goals, the technical solution adopted in the utility model is: a kind of milling machine time-delay brake system, comprise power supply, walking handle, brake activation valve and friction lining, also comprise micro-switch and slug relay's module, described walking handle below is equipped with micro-switch, micro-switch is electrically connected with the slug relay module, and slug relay's module is electrically connected with brake activation valve, and brake activation valve is controlled friction lining by brake circuit.
The described K65 of slug relay and intermediate relay K64 form.
The described K65 of slug relay time-delay length is set to 3s.
This milling machine time-delay brake system, because having increased micro-switch and slug relay's module, so compare with technology before, this milling machine time-delay brake system back autobrake that realized stopping, the generation of the danger that the milling device of having avoided the tractor driver usually to forget after stopping on hill taking brake switch and bring slides on the slope; Eliminate the tractor driver simultaneously when needing to stop when driving, usually selected to take brake switch and stop, be i.e. damaged the hidden danger of friction lining in tractor driver's maloperation driving process by stopping-down.
Description of drawings
Fig. 1 is the schematic diagram of electric control system in this system;
Fig. 2 is that system of the present utility model forms.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, this milling machine time-delay brake system, comprise power supply, walking handle, brake activation valve and friction lining, also comprise micro-switch and slug relay's module, described walking handle below is equipped with micro-switch, micro-switch is electrically connected with the slug relay module, and slug relay's module is electrically connected with brake activation valve, and brake activation valve is controlled friction lining by brake circuit.
Milling machine time-delay brake system, it is characterized in that, described slug relay module is made up of the K65 of slug relay and intermediate relay K64, the K65 of slug relay time-delay length is set to 3s, as calculated, can just stop under the effect of milling machine at road surface friction force in the time at 3s, this moment brake activation valve electromagnet dead electricity, brake activation valve is closed oil circuit, and friction lining loses the position that pressure is got back to the locking front-wheel, easily realizes braking.
As shown in Figure 2, the concrete working process of this milling machine time-delay brake system is:
The walking handle is got back to meta, in the time of namely will stopping, the micro-switch normally closed contact recovers closure state, the intermediate relay K64 of slug relay's module and the coil of the K65 of slug relay get with power connection simultaneously, this moment, the normally closed contact of K64 disconnected, and the contact of K65 with closed 3s after dead electricity, realized like this giving brake activation valve electromagnet power supply 3s after handle is got back to meta, and milling machine has stopped under the effect of road surface friction force in the 3s time, this moment brake activation valve electromagnet dead electricity, brake activation valve is closed oil circuit, and friction lining loses the position that pressure is got back to the locking front-wheel, realizes braking.
After the walking handle leaves meta, when being the milling machine walking, the micro-switch normally closed contact disconnects, the intermediate relay K64 coil of slug relay's module and power supply disconnect dead electricity, this moment K64 normally closed contact both closure states that is in the normal state, brake activation valve gets electric and opens oil circuit provides pressure to make it break away from front-wheel, brake off to friction lining.
Claims (3)
1. milling machine time-delay brake system, comprise power supply, walking handle, brake activation valve and friction lining, it is characterized in that, also comprise micro-switch and slug relay's module, described walking handle below is equipped with micro-switch, micro-switch is electrically connected with the slug relay module, and slug relay's module is electrically connected with brake activation valve, and brake activation valve is controlled friction lining by brake circuit.
2. milling machine time-delay brake system according to claim 1 is characterized in that described slug relay module is made up of the K65 of slug relay and intermediate relay K64.
3. milling machine time-delay brake system according to claim 1 and 2 is characterized in that, the described K65 of slug relay time-delay length is set to 3s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320027112 CN203047232U (en) | 2013-01-18 | 2013-01-18 | Delaying brake system of milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320027112 CN203047232U (en) | 2013-01-18 | 2013-01-18 | Delaying brake system of milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203047232U true CN203047232U (en) | 2013-07-10 |
Family
ID=48730218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320027112 Expired - Lifetime CN203047232U (en) | 2013-01-18 | 2013-01-18 | Delaying brake system of milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203047232U (en) |
-
2013
- 2013-01-18 CN CN 201320027112 patent/CN203047232U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |