CN2267329Y

CN2267329Y - Initiation control means for diesel engine

Info

Publication number: CN2267329Y
Application number: CN 96230026
Authority: CN
Inventors: 叶福健
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-12
Filing date: 1996-06-12
Publication date: 1997-11-12
Anticipated expiration: 2006-06-12

Abstract

The utility model provides an initiation control means for a diesel engine, which is composed of a motor, a cover board, a housing board, a housing, a driving gear group, a cam-type contact assembly, a key switch, and a relay. The key switch is connected with the relay, the relay is connected with a forward wire reel and a reverse wire reel respectively, the motor respectively drives an output shaft and the cam-type contact assembly through the driving gear group, and a diesel spray pump is controlled by a control element in order to ensure that the diesel spray pump cuts off oil supply quickly. The utility model solve the problems that residual oil in traditional initiation control device flows into a cylinder and causes explosions, carbon deposit, etc. The utility model has the advantage of high operational reliability.

Description

Diesel engine extinguisher

The utility model relates to a kind of control of fuel-injection pump, and particularly a kind of electronic manual initiation means is applicable to the various types diesel engine.

The flame-out operation of diesel engine, with staff control very big inconvenience is arranged in the use, and operating result is different with operator's technical ability, often influence the life-span of diesel engine performance and parts, adopt key formula switch control electromagnetic valve for this reason, with the control unit of electromagnetic valve fuel-injection pump, easy to operate, and the arrangement of components mode also improves, but the feeding amount of storage battery was big when this structure was used, and shortening the life of storage battery, the precision height of solenoid valve easily produces choking phenomenon, in case stopping up just to cause circuit to burn, electromagnetic valve can cause fuel oil in time not cut off simultaneously, and residual fuel oil leaks into cylinder and causes carbon deposit in detonation and the cylinder, damage diesel engine parts.

The purpose of this utility model is that a kind of improved diesel engine extinguisher will be provided, and it can cut off oil circuit rapidly, and shorting-out device power consumption is few, the functional reliability height, and keep easy to operate and assembly to lay characteristics such as reasonable.

Model utility is achieved in that the key formula switch of shorting-out device is connected in relay, relay is connected to the clockwise coil of wire of motor and reverses the coil of wire, be located at motor on the cover plate through gear 12 transfer gear train that is connected with a joggle, set firmly the output shaft that is connected with the control unit of fuel-injection pump on the driven gear of transfer gear train, the driven gear of transfer gear train and the gear engagement that has the contact assembly of upper and lower cam realize that with this motor drives output shaft and contact assembly simultaneously through transfer gear train; Is connected by the contact of overhead cam control clutch and the reverse coil of wire of motor, and controls the contact of clutch by cam down and the clockwise coil of wire of motor is connected.

Upper and lower cam sets firmly and is integral, and the initial point phase difference of the two control groove is to be not more than 45 °.

The utility model adopts the control unit of motoring jet pump, and with the clockwise and anticlockwise of cam timing controlled motor with stop, guarantee jet pump fuel shutoff oil supply rapidly, the residual fuel oil that overcomes traditional blanket leaks into cylinder and causes numbness diseases such as detonation and the interior carbon deposit of cylinder, improve diesel engine parts functional reliability, motor operation electric load is more smooth-going, can increase the working life of storage battery, and its work is reliable than conventional construction.

The concrete structure of model utility is provided by following examples and accompanying drawing thereof.

Fig. 1 is the utility model diesel engine extinguisher main body decomposing schematic representation.

Fig. 2 is the schematic top plan view that Fig. 1 takes off cover plate.

Fig. 3 be among Fig. 2 A to view.

Fig. 4 is the utility model diesel engine extinguisher electrical schematic diagram.

Fig. 5 is a transfer gear train schematic representation among Fig. 1.

Fig. 6 is a upper and lower cam fixed installation phase place decomposing schematic representation among Fig. 1.

Fig. 7 is Fig. 1 cam and contact action schematic representation ().

Fig. 8 is Fig. 1 cam and contact action schematic representation (two).

Fig. 9 is Fig. 1 cam and contact action schematic representation (three).

Figure 10 is Fig. 1 cam and contact action schematic representation (four).

Figure 11 is Fig. 1 cam and contact action schematic representation (five).

Figure 12 is Fig. 1 cam and contact action schematic representation (six).

Figure 13 is Fig. 1 cam and contact action schematic representation (seven).

Figure 14 is Fig. 1 cam and contact action schematic representation (eight).

With reference to Fig. 1,2,3,4,5,6, diesel engine extinguisher is made up of motor 1, cover plate 2, housing 3, transfer gear train 4, cammingly contact assembly 5, key operation 6 and relay 7.Motor 1 is a clockwise and anticlockwise once-through type motor, and motor 1 is installed on the cover plate 2, sets firmly gear 41 engagements of gear 12 and transfer gear train 4 on its shaft extension 11; Cover plate 2 is screwed in housing 3, and housing 3 inner chambers are installed transfer gear train 4 and cammingly contact assembly 5; Transfer gear train 4 is made up of

gear

41,42,43,44,45,46 and 47, gear 41 and gear 42 set firmly and are integral and the sliding stationary axle 40 that is fixed in housing 3 that is fitted to, gear 43 and gear 44 set firmly and are integral and the sliding equipped stationary axle 400 that is fixed in housing 3 of being located at, gear 45 and gear 46 set firmly and are integral and the sliding equipped stationary axle 40 of being located at, its position is below gear 42, gear 42 and gear 43 engagements, gear 44 and gear 45 engagements, gear 46 and gear 47 engagements set firmly the output shaft 48 that is connected with the control unit of fuel-injection pump on the gear 47.

Contact assembly 5 is by stationary axle 50, gear 51, following cam 53, overhead cam 54, upper contact 55, lower contact 56, upper reed plate group 57, following reed group 58 and bearing 59 are formed, housing 3 is fixed in stationary axle 50 bottoms, gear 51 and gear 47 engagements, gear 51, following cam 53 and overhead cam 54 set firmly and are integral and the sliding equipped stationary axle 50 of being located at; Upper contact 55 is located at the end points place of upper reed plate group 57, one end of upper reed plate group 57 is connected in the reverse coil of wire 13 of motor 1, its the other end ground connection, the elasticity of the fulcrum mat upper reed plate group 57 of upper contact 55 is fitted in the outer surface of overhead cam 54, the permanent trend separated state that keeps of the elasticity of upper contact 55 mat upper reed plate groups 57; Lower contact 56 is located at down the end points place of reed group 58, one end of following reed group 58 is connected in the clockwise coil of wire 14 of motor, its the other end ground connection, upper and lower reed group 57,58 is installed in bearing 59 and is parastate, bearing 59 with screw in housing 3, the elasticity of reed group 58 is fitted in down the external profile surface of cam 53 under the fulcrum mat of lower contact 56, the permanent trend separated state that keeps of the elasticity of reed group 58 under lower contact 56 mats; The basal plane 543,533 of upper and

lower cam

54,53 is the cylndrical surface, on basal plane 543,533, establish groove 542,532 respectively, upper and

lower cam

54,53 is installed the phase place requirement that sets firmly, the phase difference of the circumferential starting point 541,531 of groove 542,532 is to be not more than 45 ° (promptly≤45 °), and upper and

lower cam

54,53 is made by engineering plastics.

Circuit connects: storage battery connects key operation 6, key operation 6 is succeeded electrical equipment 7, the coil of wire 71 1 termination switches 6 of relay 7, the other end ground connection, the swing arm 73 of relay 7 can be connected to the contrary clockwise coil of

wire

13,14 of motor 1, the contrary clockwise coil of

wire

13,14 is connecting

terminal

55,56 respectively, and the end in addition of

contact

55,56 is ground connection respectively.

With reference to Fig. 4 and Fig. 7 to Figure 14, the working procedure of diesel engine extinguisher is:

The fuel injection beginning process

1. key operation is opened, whole circuit is connected power supply, the coil of wire 71 conductings of relay 7, the magnetic force of the coil of wire 71 of relay 7 overcomes the tension force of spring 72, and contact a engages, the motor 1 clockwise coil of wire 14 and closed lower contact 56 formation loops, the clockwise coil of wire 14 conductings of motor 1, upper contact 55 is from (Fig. 7) at this moment, and lower contact 56 closes (Fig. 8), and motor 1 suitable pin is to rotation.

2. motor 1 suitable pin is to 45 ° of rotations, upper contact 55 all is in the state of closing (Fig. 9) in this process, lower contact 56 fulcrums enter recessed 53 the groove 532 (Figure 10) of taking turns, lower contact 56 from, the clockwise coil of wire 14 of motor 1 opens circuit, motor 1 stops, in above-mentioned motor 1 rotary course, gear 47 drives output shaft 48 rotations, and the control unit control diesel engine that output shaft 48 drives fuel-injection pump is in the oil spout working state, i.e. this moment, diesel engine extinguisher is in the diesel engine fuel injecting working state.

Flame-out process

3. key operation closes, whole circuit and supply disconnecton, the coil of wire 7 of relay 7 opens circuit, and relay 7 swing arms 73 leave contact a under the tension force effect of spring 72, contact b engages, motor 1 reverses the coil of wire 13 and closed upper contact 55 formation loops, the reverse coil of wire 13 conductings of motor 1, and this instantaneous upper contact 55 closes (Figure 11), lower contact 56 (Figure 12), motor 1 contrary pin is to rotation.

4. motor 1 contrary pin is to 45 ° of rotations, lower contact 56 reverses beginning back closure at motor 1, and in this process, all be in the state of closing (Figure 13), when contact 55 fulcrums enter recessed when taking turns 54 groove 542 (Figure 14), upper contact 55 from, the reverse coil of wire 13 of motor 1 opens circuit, motor 1 stops, in above-mentioned motor 1 rotary course, gear 47 drives output shaft 48 and rotates towards flame-out direction, the control unit control diesel engine that output shaft 48 drives fuel-injection pump is in flameout state, i.e. this moment, diesel engine extinguisher is in the flame-out working state of diesel engine.

Claims

1. a diesel engine extinguisher is made up of key formula switch and control unit, key formula switch is connected by electric wire with control unit, the output terminal of control unit is connected with the control unit of diesel fuel injection pump, it is characterized in that: the key formula switch (6) of shorting-out device is connected in relay (7), relay (7) is connected to the reverse coil of wire (13) and the clockwise coil of wire (14) of motor (1), be located at motor (1) on the cover plate (2) through gear (12) transfer gear train (4) that is connected with a joggle, set firmly the output shaft (48) that is connected with the control unit of fuel-injection pump on the gear (47) of transfer gear train (4), the gear (47) of driving gear (4) with have, following cam (54, gear (51) engagement of contact assembly 53) (5), be connected by the upper contact (55) of overhead cam (54) control clutch and the reverse coil of wire (13) of motor (1), be connected by the lower contact (56) of cam (53) control clutch down and the clockwise coil of wire (14) of motor (1).

2. diesel engine extinguisher according to claim 1, it is characterized in that transfer gear train (4) is made up of gear (41), (42), (43), (44), (45), (46) and (47), gear (41) and gear (42) set firmly and are integral and the sliding equipped stationary axle (40) of being located at, gear (43) and gear (44) set firmly and are integral and the sliding stationary axle (400) that is fitted to, and gear (45) and gear (46) set firmly and be integral and the sliding equipped stationary axle (40) of being located at.

3. diesel engine extinguisher according to claim 1, it is characterized in that overhead cam (54), down cam (53) and gear (51) set firmly and are integral and sliding being equipped with is located at stationary axle (50), the upper and lower reed group (57,58) of upper and lower contact (55,56) is installed in bearing (59) and is parastate.

4. according to claim 1 or 3 described diesel engine extinguishers, the basal plane (543,533) that it is characterized in that upper and lower cam (54,53) is the cylndrical surface, on basal plane (543,533), establish groove (542,532) respectively, the phase difference that upper and lower cam (54,53) sets firmly the initial point (541,531) of all-in-one-piece groove (542,532) is to be not more than 45 °, and upper and lower cam (54,53) is made by engineering plastics.