CN201568115U

CN201568115U - Exhaust spark arrester of motor vehicle

Info

Publication number: CN201568115U
Application number: CN2009202727532U
Authority: CN
Inventors: 谭俊良; 程慷慨; 张堃
Original assignee: Shaanxi Heavy Duty Automobile Co Ltd
Current assignee: Shaanxi Heavy Duty Automobile Co Ltd
Priority date: 2009-12-29
Filing date: 2009-12-29
Publication date: 2010-09-01
Anticipated expiration: 2019-12-29

Abstract

An exhaust spark arrester of a motor vehicle comprises a barrel body assembly and a spark arresting element mounted on an exhaust pipe, and is characterized in that a crankshaft, a joint bearing extension bar, an air cylinder and a control device are also included, wherein the control device is used for controlling air admission of the air cylinder; one end of the joint bearing extension bar is connected with a piston of the air cylinder, and the other end thereof is connected with a rocking arm of the crankshaft; the rectilinear motion of the cylinder piston is converted into rotation of the crankshaft around a shaft axis; one end of the crankshaft far away from the rocking arm is inserted into the barrel body assembly to be as a driving shaft; and the spark arresting element is fixedly mounted on the driving shaft and is overturned along with the rotation of the driving shaft. The utility model adopts the air cylinder instead of a manually-controlled spark arresting device, solves the problems of limited manual operation space, shutdown operation and the like in the prior art, and greatly facilitates application of the spark arrester.

Description

Automobile exhausting spark arrester

Technical field

The utility model relates to vehicle exhaust, is specifically related to a kind of automobile exhausting spark arrester.

Background technique

The automobile exhausting spark arrester great majority that now are used for motor vehicle are manually operated type, however the position of different vehicle exhaust outlet be not quite similar, the complexity that staff can touch is also different, even the position that has can't be touched.And the manually operated type automobile exhausting spark arrester must stop and can handle, and wastes time and energy.

The model utility content

Handle the deficiency of inconvenience for overcoming the automobile exhausting spark arrester that exists in the prior art, the utility model proposes the automobile exhausting spark blow-out that a kind of gas is handled.This device is driving element with the cylinder, drives the rocking arm on the flame-out grid live axle, makes flame-out grid realize closing automatically and opening.

The utility model is achieved in that the automobile exhausting spark blow-out comprises staving assembly and the blow-out element that is installed on the outlet pipe, it is characterized in that, also comprise: bent axle, joint shaft bearing extension bar joint shaft bearing extension bar, cylinder and control gear, wherein, described control gear is used for the air inlet of control cylinder, the piston of described cylinder is connected with bent axle by joint shaft bearing extension bar joint shaft bearing extension bar, the straight line motion of cylinder piston is become the rotation of crankshaft rocker around the rocking arm shaft axis, and described crankshaft rocker drives described blow-out element upset.

In embodiment of the present utility model, can fix cylinder-joint shaft bearing extension bar joint shaft bearing extension bar-crank assemblby with supporting base.Described supporting base is fixedly mounted on described staving assembly surface; The blow-out element that the rocking arm of described bent axle passes in described supporting base and the staving assembly is fixedlyed connected, and described cylinder is installed on the supporting base away from an end of housing away from an end of piston rod by bearing pin and can rotates around bearing pin.

The general optional solenoid valve of using of the control gear of cylinder preferably can be selected two-position three way magnetic valve for use.

Preferably, the blow-out element can be the flame-out grid of disc, described flame-out grid are fixedly mounted on the rocking arm of described bent axle, and the shaft axis of flame-out grid is vertical with the shaft axis of crankshaft rocker, and the shaft axis of the center line of crankshaft rocker and motor vehicle exhaust is vertical, when described crankshaft rocker rotated, flame-out grid were around the center line upset of crankshaft rocker.

The utility model adopts cylinder to replace the hand control spark blow-out, problems such as manually-operable limited space system in the prior art, necessary shut-down operation have been solved, greatly facilitate the use of arc arrester, the driver presses the button on the seat and just can realize the startup of arc arrester and stop.In addition, adopt the gas actuating element to control the Kai Heguan of spark blow-out, not only convenient but also reliability is high.

Description of drawings

Fig. 1 is the plan view of exhaust spark blow-out;

Fig. 2 is the plan view of exhaust spark blow-out;

Fig. 3 is the schematic representation of staving assembly;

Fig. 4 is the schematic representation of cylinder support seat;

Fig. 5 is the bearing pin schematic representation;

Fig. 6 is the schematic representation of bent axle;

Fig. 7 is the pitman arm shaft schematic representation;

Fig. 8 is the rocking arm schematic representation;

Fig. 9 is a schematic diagram of gas circuit;

Figure 10 is an electrical schematic;

Figure 11 is one of blow-out element embodiment's a schematic representation;

Figure 12 is blow-out element embodiment's two a schematic representation;

Wherein:

1. flame-out cap 2. first restraint zone assemblies 3. bent axles

4. joint shaft bearing extension bar 5. single-acting micro-air-cylinders 6. cylinder support seats

7. flame-out grid of staving assembly 8. second restraint zone assembly b 9.

10. fixed base 11. stavings 12. supporting base channel-section steels

13. bearing pin 14. pitman arm shafts 15. rocking arms

16. live axle 17. normal off two-position three way magnetic valves 18. sources of the gas

19.S1-start button 20.S2-stop button 21.K-electromagnet

22.S-tutorial light 23.K-electromagnet self-locking contact

Embodiment

Below further specify the utility model by a preferred forms of the present utility model.

As shown in Figure 1, the automobile exhausting spark blow-out comprises single-acting micro-air-cylinder 5 and cylinder supporting base 6, cylinder support seat 6 is fixed on by two bolts on the fixed base 10 of staving assembly 7, and staving assembly 7 is installed on the automobile exhaust pipe by second restraint zone 8.

Single-acting micro-air-cylinder 5 forms Spielpassung by the hole and the bearing pin on the cylinder support seat 6 13 of its cylinder barrel afterbody, and single-acting micro-air-cylinder 5 can only be swung around the axis of bearing pin 13.

Joint shaft bearing extension bar 4 is equipped with in the piston rod end of single-acting micro-air-cylinder 5, and both are standard piece.The piston rod end outside thread forms with the tapped hole of joint shaft bearing extension bar 4 afterbodys and is threaded, and can utilize this connection to carry out the adjusting of joint shaft bearing position.

Live axle 16 on the bent axle 3 passes the fixed hole on the staving assembly 7 and the mounting hole of flame-out grid 9 successively, and forms Spielpassung with fixed hole on the staving assembly 7, and flame-out grid 9 are fixed on the live axle 16 by the hole at bolt and live axle 16 middle parts.

Joint shaft bearing extension bar 4 is through on the pitman arm shaft 14 on the bent axle 3 by brearing bore, and by the shaft shoulder on the pitman arm shaft 14 be loaded on shaft end nut and carry out axial restraint.

Fig. 3 is the view of staving assembly 7, and staving assembly 7 is made up of two fixed bases 10 and staving 11.Fixed base is the cylindrical body that there is tapped hole at the center, and an end is processed into the inclined-plane, be beneficial to and the welding of staving outer surface, and symmetry is welded in live axle mounting hole both sides.

Fig. 4 is the view of cylinder support seat 6.The cylinder support seat is made up of supporting base channel-section steel 12 and bearing pin 13.The supporting base channel-section steel is a steel stamping part, and the transverse section head is big, and afterbody is little, and the head outside of belly has 3 circular holes, and the hole of both sides is a cylinder support seat mounting hole, and intermediate hole is the positioning hole of bent axle 3.Fig. 5 is the bearing pin view, and bearing pin is a multidiameter shaft, and stage casing and single-acting micro-air-cylinder uropore form Spielpassung, and its length is greater than single-acting micro-air-cylinder uropore length.The small end machining screw is used to install nut, and restriction single-acting micro-air-cylinder is moving along bearing pin axis string.

Fig. 6 is the view of bent axle 3.Bent axle 3 is formed by pitman arm shaft 14, rocking arm 15 and live axle 16 assembly weldings.Fig. 7 is the view of pitman arm shaft 14, and pitman arm shaft is a multidiameter shaft, and the brearing bore of stage casing and joint shaft bearing extension bar 4 forms Spielpassung, and its length is less than bearing width.The small end machining screw is used to install nut, the motion of the relative pitman arm shaft of restriction bearing inner race.Fig. 8 is the view of rocking arm 15, and it is a plate muscle spare, is processed with two holes on it, and the hole of big end is used to install live axle 16, and the hole of small end is used to install pitman arm shaft 14.

Fig. 9 is a schematic diagram of gas circuit.Wherein single-acting micro-air-cylinder 5 is by 17 controls of 1 normal off two-position three way magnetic valve, and the cylinder piston chamber communicates with atmosphere during the solenoid valve dead electricity, and piston rod is in retracted position under the effect of cylinder return spring, and source of the gas is blocked; Solenoid valve gets that the cylinder piston chamber communicates with source of the gas 18 when electric, and the compressed air-driven piston overcomes the resistance of cylinder return spring, and piston rod is stretched out.

Figure 10 is an electrical schematic.K-electromagnet 21 must be electric when pressing S1-

start button

19,17 actions of normal off two-position three way magnetic valve, and S-tutorial light 22 is bright.K-electromagnet self-locking contact 23 closures simultaneously, K-electromagnet be in electricity condition, the S1-start button is inoperative.K-electromagnet 21 dead electricity when pressing S2-stop button 20, normal off two-position three way magnetic valve 17 returns, S-tutorial light 22 goes out.The contact of K-electromagnet self-locking simultaneously 23 is opened, and the K-electromagnet is in power failure state.

In conjunction with Fig. 1 and Fig. 2, flame-out grid 9 can place in the flame-out cap 1, are installed on the staving assembly 7 by the first restraint zone assembly 2 again.Figure 11 is one of implementation of flame-out grid.The flame-out position of grid on whole exhaust spark blow-out as shown in Figure 2.Flame-out grid are formed by two plate-like stamping part make-ups, and the material of card punching do not wash out, but and flame-out grid axis form several angle, form one by one little guide vane.When the exhaust of Motor Vehicle during by the punching on two cards, airflow direction issues change in the effect of guide vane, and the spark in the air-flow clash into flame-out grid under its inertial force effect, prolong the time of discharge of cremating, thereby play the effect of extinguishing spark.

Figure 12 is the another kind of implementation of flame-out grid 9.Flame-out grid are made up of the steel ring in tape spool hole and the Composite Steel silk screen of steel ring inside.Angled the stacking of the relative braided steel wire direction of each layer steel wire, and the distance between net makes along flame-out grid axial direction and forms the labyrinth greater than the thickness of net.When the exhaust of Motor Vehicle during by the steel wire labyrinth, air-flow be easy to by, but the spark in the air-flow clash into flame-out grid steel wire under its inertial force effect, prolong the time of discharge of cremating, thereby play the effect of extinguishing spark.

The open and close of the utility model exhaust spark trap device are achieved in that to single-acting micro-air-cylinder 5 logical high pressure air, piston rod is stretched out, the joint shaft bearing extension bar 4 of piston rod end drives the mounting hole axis swing of bent axle 3 on staving assembly 7, bent axle 3 drives dress flame-out grid 9 rotations thereon by live axle 16 simultaneously, make flame-out grid center line and 7 deads in line of staving assembly, exhaust is passed from flame-out grid grid hole, and the realization exhaust spark trap device is opened, and plays spark and extinguishes effect; Die for single-acting micro-air-cylinder 5, piston rod is regained under the effect of cylinder return spring, and drive joint shaft bearing extension bar 4, joint shaft bearing extension bar 4 driving bent axles 3 are pacified the commentaries on classics axially bored line and are swung round about on staving assembly 7, make flame-out grid center line and staving assembly 7 axis normal, exhaust is not passed from flame-out grid grid hole, realizes closing of exhaust spark trap device.

Use automobile of the present utility model, can realize that the driver under the situation that does not influence normal driving, operates this system in operator cabin.

Claims

1. an automobile exhausting spark blow-out comprises the staving assembly and the blow-out element that are installed on the outlet pipe, it is characterized in that, also comprises: bent axle, joint shaft bearing extension bar, cylinder and control gear, wherein,

Described control gear is used for the air inlet of control cylinder, and an end of described joint shaft bearing extension bar and the piston of cylinder are connected, and the rocking arm of the other end and bent axle is connected, and the straight line motion of cylinder piston is become the rotation of bent axle around its shaft axis;

Described bent axle inserts in the described staving assembly as live axle away from an end of rocking arm, and described blow-out element is fixedly mounted on the live axle and with the rotation upset of live axle.

2. automobile exhausting spark blow-out according to claim 1 is characterized in that: also comprise supporting base, described supporting base is fixedly mounted on described staving assembly surface; The blow-out element that the rocking arm of described bent axle passes in described supporting base and the staving assembly is fixedlyed connected, and described cylinder is installed on the supporting base away from an end of housing away from an end of piston rod by bearing pin and can swings around bearing pin.

3. automobile exhausting spark blow-out according to claim 2 is characterized in that: described control gear is a solenoid valve.

4. automobile exhausting spark blow-out according to claim 3 is characterized in that: described cylinder is the single-acting micro-air-cylinder.

5. automobile exhausting spark blow-out according to claim 4 is characterized in that: also comprise the control circuit that is used for control electromagnetic valve on/off electricity.

6. automobile exhausting spark blow-out according to claim 5, it is characterized in that: described solenoid valve is the normal off two-position three way magnetic valve, described control circuit comprises normal open switch, normally closed switch and the electromagnet that connects successively, the self-locking contact of described solenoid valve and normal open switch parallel connection.

7. automobile exhausting spark blow-out according to claim 6 is characterized in that: also comprise securing means, be used for described staving assembly is fixed on motor vehicle exhaust.

8. according to each described automobile exhausting spark blow-out of claim 1-7, it is characterized in that, described blow-out element is the flame-out grid of disc, described flame-out grid are fixedly mounted on the rocking arm of described bent axle, and the shaft axis of flame-out grid is vertical with the shaft axis of crankshaft rocker, and the shaft axis of the center line of crankshaft rocker and motor vehicle exhaust is vertical, and when described crankshaft rocker rotated, flame-out grid were around the center line upset of crankshaft rocker.

9. automobile exhausting spark blow-out according to claim 8, it is characterized in that: described flame-out grid comprise two plate-like stamping part of make-up, the material of the card punching of described stamping part does not wash out, and becomes certain included angle with flame-out grid axis, forms one by one little guide vane.

10. automobile exhausting spark blow-out according to claim 8, it is characterized in that: described flame-out grid are made up of the steel ring in tape spool hole and the Composite Steel silk screen of steel ring inside, angled the stacking of the relative braided steel wire direction of each layer steel wire makes along flame-out grid axial direction and forms the labyrinth.