CN202991943U - Driving device of air compressor system on class A foam fire fighting vehicle - Google Patents
Driving device of air compressor system on class A foam fire fighting vehicle Download PDFInfo
- Publication number
- CN202991943U CN202991943U CN 201220685853 CN201220685853U CN202991943U CN 202991943 U CN202991943 U CN 202991943U CN 201220685853 CN201220685853 CN 201220685853 CN 201220685853 U CN201220685853 U CN 201220685853U CN 202991943 U CN202991943 U CN 202991943U
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- air compressor
- disc
- driving disc
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- driving
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Abstract
The utility model discloses a driving device of an air compressor system on a class A foam fire fighting vehicle, which comprises an air compressor, and is characterized by further comprising an electromagnetic cluth, wherein the electromagnetic cluth is formed by a driving disc, a driven disc and a coil; a pulley of the air compressor is connected with an air compressor shaft via a bearing and is also connected with the driving disc via a connecting flange; and the driven disc is connected with the air compressor shaft via a common flat key and is pushed by electromagnetic force generated by the electrified coil to be clung to or separated from the driving disc. The driving disc is equipped with a spring piece, and a friction disc is arranged outside the driving disc; another friction disc is arranged outside the driven disc; and the driving disc and the driven disc are clung to each other via the two friction discs. A gap in 0.7-1 mm is formed between the driving disc and the driven disc. According to the utility model, the electromagnetic cluth is taken as the core part of the whole set of the driving device, the whole set of the driving device is simple in structure, easy to mount and convenient for operation; and in addition, the whole set of the driving device is high in reliability and low in failure rate.
Description
Technical field
The utility model relates to the drive unit of air compressor system on a kind of class A foam fire-fighting truck.
Background technique
China's class A foam fire-fighting truck can be installed two power take-offs usually; one is used for driving water pump by mounting clamp core type power take-off in the middle of gearbox and clutch; another is to drive air compressor at gearbox side installation side power take-off, and then realizes the compressed-air actuated effect of air compressor.When adopting class A foam liquid to put out a fire for special kindling material, can class A foam liquid play the effect of the too busy to get away air compressor of effect of fire extinguishing, only have air with class A foam liquid must ratio mixing the purpose that just can play fire extinguishing, can say that air compressor is whole category-A system " heart ".When driving water pump by the side power take-off, generally control by pneumatic or mechanical mode, middle by gear transmission of power to the pneumatics arbor.The above mode that drives air compressor by the gear-box side power take-off is used quite general in fire protection sector, and also very maturation of technology, but also have certain disadvantages with respect to the present invention: (1) total quality is heavier: drive air compressor owing to will power take-off being installed in the gearbox side, and must consider the rotation direction of air compressor input shaft and chassis speed changing box output shaft when arranging, if also need to install in the centre commutator with the inconsistent words of demand, mechanical structure is more loaded down with trivial details, and overall weight is large; (2) probability of malfunction is larger: because whole transmission system mechanical structured member is more, the parts of composition are more complicated also, so the position of breaking down also can increase, the probability that whole system breaks down is corresponding increase also; (3) cost is high: adopt side-draw power gearing structural member many, the corresponding cost also cost than independent employing magnetic clutch is high a lot.
The model utility content
Technical problem to be solved in the utility model is to provide the drive unit of air compressor system on a kind of class A foam fire-fighting truck, solved with respect to adopting the gear-box side power take-off that the system of power source is provided for air compressor, driven the complicated lengthy and tedious mechanical connecting structure problem of air compressor by power take-off.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
On a kind of class A foam fire-fighting truck, the drive unit of air compressor system, comprise air compressor, it is characterized in that: also comprise magnetic clutch, described magnetic clutch is comprised of driving disc, driven disc and coil; The belt pulley of described air compressor is connected with the pneumatics arbor by bearing, and the belt pulley of air compressor is connected with driving disc by adpting flange, and driven disc is connected with the pneumatics arbor by parallel key; Driven disc gets the promotion of electric generation magnetic force and fits or separate with driving disc by coil.
The external DC24V power supply of magnetic clutch.
On described driving disc, spring sheet is housed, is provided with friction disk outside driving disc; The described driven disc outside is provided with friction disk; Driving disc and driven disc are fitted by friction disk separately.
Be provided with the gap between described driving disc and driven disc, the gap is between 0.7-1mm.
Connect the insurance of a 10A on described power supply supply lines.
The utlity model has following advantage:
The utility model is simple in structure: motivation package transfer unit, core component are exactly magnetic clutch, and be simple in structure, is easy to install convenient operation; Reliability is high: due to simple in structure, principle is clear, and the package unit rate of breakdown is low, and reliability is high.
Description of drawings
Fig. 1 is the utility model structural representation
In figure: 1-coil, 2-driven disc, 3-driving disc, 4-adpting flange, 5-belt pulley, 6-pneumatics arbor, 7-air compressor, 8-coupling shaft
Embodiment
The utility model is described in further detail below in conjunction with Figure of description.
As shown in Figure 1, on a kind of class A foam fire-fighting truck, the drive unit of air compressor system, comprise air compressor, it is characterized in that: also comprise magnetic clutch, described magnetic clutch is comprised of driving disc, driven disc and coil; The belt pulley of described air compressor is connected with the pneumatics arbor by bearing, and the belt pulley of air compressor is connected with driving disc by adpting flange, and driven disc is connected with the pneumatics arbor by parallel key; Driven disc gets the promotion of electric generation magnetic force and fits or separate with driving disc by coil.
The external DC24V power supply of magnetic clutch.
On described driving disc, spring sheet is housed, is provided with friction disk outside driving disc; The described driven disc outside is provided with friction disk; Driving disc and driven disc are fitted by friction disk separately.
Be provided with the gap between described driving disc and driven disc, the gap is between 0.7-1mm.The reliable starting of magnetic clutch, the control point of turning round, stopping its inner most critical are exactly the gap between driving disc and driven disc, this gap will guarantee between 0.7-1mm, all can cause clutch work undesired less than this size or greater than this size.The little meeting in gap causes loaded starting, and starting torque is large, and power consumpiton is many, and dead electricity is separated inefficacy; The gap is large, can cause powering in conjunction with losing efficacy, cause the air compressor can't normal starting, perhaps the air compressor running off and on, so for the gap that guarantees that this is just right, one complete, the reliable frock of cover is arisen at the historic moment, and in the practical set process, utilizes frock and vernier caliper measurement and control this gap.
Connect the insurance of a 10A on described power supply supply lines.Because magnetic clutch is to adopt outer power supply source to control clutch; in the electric system of complexity in order to accomplish effectively to protect equipment; therefore connected the insurance of a 10A on the power supply supply lines, this insurance is played when circuit breaks down, timely and effective protection clutch.
This equipment is elaborated as follows:
(1) type selecting: calculate to determine air supply according to the category-A system matches, and then the rotating speed of definite air compressor and moment of torsion, then select according to the factors such as size of air compressor input shaft the magnetic clutch that is complementary with it.
(2) working principle: the external DC24V power supply of magnetic clutch, combination powers on, dead electricity is separated, after powering on, coil gets electric generation magnetic force, the driving disc outside friction disk suction that spring sheet will be housed by driven disc is come and the applying of driven disc friction disk, and like this, the power of pneumatics arbor rotation has just passed by magnetic clutch; After dead electricity, coil magnetic force disappears, and the friction disk resilience under the effect of spring sheet outside driving disc separates with the friction disk of driven disc, thereby ends power transmission.Like this, air compressor just quits work.In actual the use, just the break-make by the external power supply button realizes the operation of air compressor and stops, and operates very simple.
(3) characteristics:
Rotating speed is high: magnetic clutch has high-revolving characteristics, and working speed can reach 5,000 and turn, and the raising of rotating speed also can improve the decrement of air accordingly, and then improves the performance of whole category-A system works.
After hypervelocity automatic trip from: in the process of operation when exceeding the maximum speed that allows, driving disc can separate automatically with driven disc, plays the effect of protection when magnetic clutch.
Volume is little, and at the bottom of cost: the package unit overall sizes that magnetic clutch is connected with the air compressor input shaft is only for φ 170 * 130 (mm), has only taken the sub-fraction space of a whole set of category-A system, and has installed also very convenient, easy to operate.
Claims (5)
1. the drive unit of air compressor system on a class A foam fire-fighting truck, comprise air compressor, and it is characterized in that: also comprise magnetic clutch, described magnetic clutch is comprised of driving disc, driven disc and coil; The belt pulley of described air compressor is connected with the pneumatics arbor by bearing, and the belt pulley of air compressor is connected with driving disc by adpting flange, and driven disc is connected with the pneumatics arbor by parallel key; Driven disc gets the promotion of electric generation magnetic force and fits or separate with driving disc by coil.
2. the drive unit of air compressor system on class A foam fire-fighting truck as claimed in claim 1, is characterized in that: the external DC24V power supply of magnetic clutch.
3. the drive unit of air compressor system on class A foam fire-fighting truck as claimed in claim 1, is characterized in that: on described driving disc, spring sheet is housed, is provided with friction disk outside driving disc; The described driven disc outside is provided with friction disk; Driving disc and driven disc are fitted by friction disk separately.
4. the drive unit of air compressor system on class A foam fire-fighting truck as claimed in claim 1, it is characterized in that: be provided with the gap between described driving disc and driven disc, the gap is between 0.7-1mm.
5. the drive unit of air compressor system on class A foam fire-fighting truck as claimed in claim 2, is characterized in that: connect the insurance of a 10A on described power supply supply lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220685853 CN202991943U (en) | 2012-12-13 | 2012-12-13 | Driving device of air compressor system on class A foam fire fighting vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220685853 CN202991943U (en) | 2012-12-13 | 2012-12-13 | Driving device of air compressor system on class A foam fire fighting vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991943U true CN202991943U (en) | 2013-06-12 |
Family
ID=48563126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220685853 Expired - Lifetime CN202991943U (en) | 2012-12-13 | 2012-12-13 | Driving device of air compressor system on class A foam fire fighting vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991943U (en) |
-
2012
- 2012-12-13 CN CN 201220685853 patent/CN202991943U/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 |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |