CN201103469Y

CN201103469Y - General petrol engine brake assembly

Info

Publication number: CN201103469Y
Application number: CNU2007201251286U
Authority: CN
Inventors: 杨光固
Original assignee: Lifan Industry Group Co Ltd
Current assignee: Lifan Technology Group Co Ltd
Priority date: 2007-09-04
Filing date: 2007-09-04
Publication date: 2008-08-20
Anticipated expiration: 2017-09-04

Abstract

The utility model relates to a universal brake assembly of a gasoline engine; the front end of the brake arm is articulated with the surface of a substrate; while the rear end penetrates a strip through hole at the connection location of the substrate and a support board; cable mounting holes are arranged at the rear end of the brake arm and a spring is hung between the arm body of the brake arm and the end of the support board; a branch arm is extended from the arm body at the front of the brake arm; the suspending end of the branch arm is provided with a friction plate component and a rubber isolator is arranged on the substrate next to the branch arm; a flameout reed is arranged on the rubber isolator and one end of the flameout reed is connected with a flameout conductor; while the other end is hung in the air; a flameout arm extended out is fixed on an external edge of the branch arm; before the brake arm rotates a pivot point at the front end to brake, the flameout arm is contacted with the bottom of the hanging part of the flameout reed first. In the universal brake assembly, the method of flameout first and brake second is adopted, thus possibly shortening the brake time to ensure the brake effect as well as effectively reducing the wear of the friction plate component and largely prolonging the service life.

Description

The general gasoline engines brake assembly

Technical field

The utility model relates to a kind of petrol engine member, specifically, relates to a kind of general gasoline engines brake assembly.

Background technique

At present, the general gasoline engines brake assembly is generally taked to brake and flame-out mode of carrying out simultaneously, promptly spur drag-line, brake arm is rotated around the articulating point of itself and substrate, the spring that is articulated between brake arm and the substrate is stretched, and is fixed on the circumferential surface that friction plate assembly on the brake arm leaves the petrol engine flywheel; Meanwhile, the flameout switch that is connected with flame-out lead opens circuit, and the control circuit of whole petrol engine is in channel status, and can start petrol engine in working state this moment.When needs are braked, unclamp drag-line, under the Hui Li of spring, brake arm resets, and the friction plate assembly compressing on the brake arm stops operating flywheel on the circumferential surface of petrol engine flywheel; Simultaneously, the flameout switch conducting, the control circuit of petrol engine is in turnoff state.Because what flameout switch adopted is sensitive switch, sensitivity and less stable, in braking and flame-out when carrying out simultaneously, because of the contact of flameout switch bad, petrol engine also fails to stop working with the flywheel applying to cause friction plate assembly easily, the power that promptly acts on the flywheel fails in time to stop output, so not only can cause friction plate assembly to wear and tear in a large number, shorten its working life, and the period of braking of flywheel is longer, if be used for the lawn machine, the related request that must in 3 seconds, stop when not satisfying the flywheel braking.

The model utility content

Technical problem to be solved in the utility model is to provide the general gasoline engines brake assembly that a kind of braking effect is better, the chip module of effectively reducing friction weares and teares.

The technical solution of the utility model is as follows: a kind of general gasoline engines brake assembly, comprise substrate, brake arm, spring, friction plate assembly and flame-out lead, its key is: the rear end of described substrate is bending upwards, forms support plate, has the bar shaped via hole in the joint of this support plate and substrate; The front end of described brake arm is hinged on the plate face of substrate, and the rear end of brake arm is passed from the bar shaped via hole, offers the drag-line mounting hole in the end of brake arm rear end, and articulates spring between the end of brake arm near the arm body of this drag-line mounting hole and support plate; The arm of described brake arm front portion extends a support arm on one's body, this support arm and spring are positioned at the same side of brake arm, and " U " shape structure is formed in the front portion of support arm and described brake arm, cantilever end at support arm is installed friction plate assembly, and the substrate on support arm next door is provided with rubber base, flame-out reed is installed on the described rubber base, and an end of this flame-out reed is connected with flame-out lead, and the other end is unsettled; Be fixed with outwardly directed flame-out arm on the outward edge of described support arm, when the hinge of front end was rotated counterclockwise, described flame-out arm contacted with the bottom of flame-out reed overhanging portion earlier, brakes again at brake arm.

Substrate is installed on the gasoline engine crank case in the utility model, and drag-line is fixedlyed connected with the drag-line mounting hole of brake arm rear end, and the separation of drag-line and spring is in the both sides of brake arm.The pulling drag-line makes brake arm clockwise rotate around the articulating point of itself and substrate, and the spring that is articulated between brake arm and the support plate is stretched, and is fixed on the circumferential surface that friction plate assembly on the support arm leaves the petrol engine flywheel; Meanwhile, flame-out arm does not contact with flame-out reed, and the control circuit of whole petrol engine is in channel status, and can start petrol engine in working state this moment.When needs are braked, unclamp drag-line, under the Hui Li of spring, brake arm resets, flame-out arm contacts with the bottom of flame-out reed overhanging portion earlier, makes flame-out line ground connection flame-out, and the control circuit of petrol engine is in turnoff state, the power that acts on the flywheel stops output, and flywheel continues rotation under effect of inertia; The compressing of friction plate assembly on the support arm stops operating flywheel on the circumferential surface of petrol engine flywheel then.

Because what the utility model adopted when being used for the petrol engine braking is to stop working earlier afterwards to brake, the friction plate assembly wearing and tearing are very little like this, and prolong working life greatly; Flywheel can in time stop operating, if be used for the lawn machine, and the related request that must in 3 seconds, stop in the time of can satisfying the flywheel braking.In addition, flame-out reed is compared with the sensitive switch in the background technique, and sensitivity and stability are better, earlier with the power cut on the flywheel, has effectively ensured the reliability of braking effect before can guaranteeing to brake at every turn.

Install for brake arm being rotated flexibly and being convenient to drag-line, the front end of above-mentioned brake arm is hinged on by connecting bolt on the plate face of substrate, and the hole wall of described drag-line mounting hole and support arm homonymy is provided with an opening.

The cantilever end of above-mentioned support arm is bending upwards, forms riser, the top fixed friction chip module of this riser front face, and the surface of contact of friction plate assembly and riser is big, and it is firm to connect between the two, has prevented that effectively friction plate assembly comes off in the process of braking.

Above-mentioned flame-out reed is installed on the rubber base by spacing card, cooperates by clamping between flame-out reed and the rubber base, and the dismounting of flame-out reed and adjustment are all very convenient; The bottom of flame-out reed overhanging portion is a wedge angle, can guarantee like this contact reliably between flame-out reed and the flame-out arm, and the surface friction drag when helping reducing brake arm again and rotating shortens period of braking as far as possible.

For simplified structure, the further reliability of stopping working before the braking that ensures, be provided with contact in the outer end of above-mentioned flame-out arm, the upper surface of this contact is higher than the upper surface of described flame-out arm arm body.

Beneficial effect: the mode that the utility model takes elder generation to stop working and afterwards brake, can shorten period of braking as far as possible, ensure braking effect; And effectively reduced the wearing and tearing of friction plate assembly, prolonged its working life greatly, had rational in infrastructure, characteristics such as enforcement is easy, reliable performance.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 analyses and observe rotation diagram for the A-A of Fig. 1.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1 and Figure 2, the both sides of substrate 1 front portion respectively have a through hole 1a, be used for by bolt substrate 1 being fixed on crankcase, and one of them through hole are cylindrical void, so that regulate the mounting point.The rear end of substrate 1 is bending upwards, forms support plate 6, and the two ends of support plate 6 are deformation bending backward again.Joint at support plate 6 and substrate 1 has bar shaped via hole 7, the front end of brake arm 2 is hinged on the plate face at substrate 1 middle part by connecting bolt 13, the rear end of brake arm 2 is passed from bar shaped via hole 7, drag-line mounting hole 8 is offered in end in brake arm 2 rear ends, on drag-line mounting hole 8 right side hole wall as shown in Figure 1, be provided with an opening 8a, 15 1 of drag-lines pass through this drag-line mounting hole 8 fixedlys connected with brake arm 2, and the other end is passed from the end of support plate 6 left ends.Arm at brake arm 2 close drag-line mounting holes 8 offers spring mounting hole on one's body, and spring 3 one ends and this spring mounting hole articulate, and the other end is articulated in the end of support plate 6 right-hand members.

Please see Figure 1, Fig. 2, extend along the direction distortion towards flywheel 16 on the right of brake arm 2 front portions, form a support arm 9, support arm 9 and spring 3 are positioned at the same side of brake arm 2, and support arm 9 is formed " U " shape structure with the front portion of described brake arm 2, the cantilever end of this support arm 9 is bending upwards, forms riser 9a, at the top of riser 9a front face fixed friction chip module 4.Described support arm 9 outer peripheral middle parts are fixed with outwardly directed flame-out arm 10, and the outer end of flame-out arm 10 is provided with contact 10a, and the upper surface of this contact 10a is higher than the upper surface of described flame-out arm 10 arm bodies.Fixing rubber base 11 on the substrate 1 on support arm 9 right sides, flame-out reed 12 is installed on the rubber base 11 by spacing card 14, and an end of flame-out reed 12 is connected with flame-out lead 5, and the other end is unsettled, and the bottom of overhanging portion 12a is a wedge angle.Brake arm 2 around connecting bolt 13 be rotated counterclockwise brake before, contact 10a on the described flame-out arm 10 contact with the bottom wedge angle of flame-out reed 12 overhanging portion 12a earlier, brakes after making petrol engine flame-out earlier again.

The utility model is work like this: pulling drag-line 15, brake arm 2 is clockwise rotated as shown in Figure 1 around connecting bolt 13, the spring 3 that is articulated between brake arm 2 and the support plate 6 is stretched, and is fixed on the circumferential surface that friction plate assembly 4 on the support arm 9 leaves petrol engine flywheel 16 (among Fig. 1 shown in the two-dot chain line); Meanwhile, the contact 10a on the flame-out arm 10 does not contact with the bottom wedge angle of flame-out reed overhanging portion 12a, and the control circuit of whole petrol engine is in channel status, and can start petrol engine in working state this moment.When needs are braked, unclamp drag-line 15, under the Hui Li of spring 3, brake arm 2 rotates counterclockwise as shown in Figure 1 around connecting bolt 13, and friction plate assembly 4 is with before petrol engine flywheel 16 contacts, and flame-out contact 10a contacts with the bottom wedge angle of flame-out reed overhanging portion 12a earlier, make flame-out line 5 ground connection flame-out, the control circuit of petrol engine is in turnoff state, and the power that acts on the flywheel 16 stops output, and flywheel continues rotation under effect of inertia; Friction plate assembly on the support arm 94 compressings (see figure 1) on the circumferential surface of petrol engine flywheel 16 stops operating flywheel 16 then.

Claims

1, a kind of general gasoline engines brake assembly, comprise substrate (1), brake arm (2), spring (3), friction plate assembly (4) and flame-out lead (5), it is characterized in that: the rear end of described substrate (1) is bending upwards, form support plate (6), have bar shaped via hole (7) in the joint of this support plate (6) and substrate (1); The front end of described brake arm (2) is hinged on the plate face of substrate (1), the rear end of brake arm (2) is passed from bar shaped via hole (7), drag-line mounting hole (8) is offered in end in brake arm (2) rear end, and articulates spring (3) between the end of brake arm (2) near the arm body of this drag-line mounting hole (8) and support plate (6); The anterior arm of described brake arm (2) extends a support arm (9) on one's body, this support arm (9) and spring (3) are positioned at the same side of brake arm (2), and support arm (9) is formed " U " shape structure with the front portion of described brake arm (2), cantilever end at support arm (9) is installed friction plate assembly (4), and the substrate (1) on support arm (9) next door is provided with rubber base (11), described rubber base (11) is gone up flame-out reed (12) is installed, an end that is somebody's turn to do flame-out reed (12) is connected with flame-out lead (5), and the other end is unsettled; Be fixed with outwardly directed flame-out arm (10) on the outward edge of described support arm (9), when the hinge of front end was rotated counterclockwise, described flame-out arm (10) contacted with the bottom of flame-out reed (12) overhanging portion (12a) earlier, brakes again at brake arm (2).

2, general gasoline engines brake assembly according to claim 1, it is characterized in that: the front end of described brake arm (2) is hinged on by connecting bolt (13) on the plate face of substrate (1), and described drag-line mounting hole (8) is provided with an opening (8a) with the hole wall of support arm (9) homonymy.

3, general gasoline engines brake assembly according to claim 1 and 2 is characterized in that: the cantilever end of described support arm (9) is bending upwards, forms riser (9a), the top fixed friction chip module (4) of this riser (9a) front face.

4, general gasoline engines brake assembly according to claim 1 is characterized in that: described flame-out reed (12) is installed on the rubber base (11) by spacing card (14), and the bottom of flame-out reed (12) overhanging portion (12a) is a wedge angle.

5, general gasoline engines brake assembly according to claim 4 is characterized in that: be provided with contact (10a) in the outer end of described flame-out arm (10), the upper surface of this contact (10a) is higher than the upper surface of described flame-out arm (10) arm body.