CN206617267U - It is a kind of to electrically activate ratchet structure for gasoline engine - Google Patents

Abstract

The utility model belongs to technical field of engines, refers in particular to a kind of electrically activate ratchet structure for gasoline engine；Including starter cover, it is provided with starter cover and electrically activates ratchet mounting post, it is axially arranged on ratchet mounting post is electrically activated to have through hole, ratchet is electrically activated to include main body and be separately positioned on power input unit and the ratchet portion at main body two ends, the power input unit is arranged in the through hole, in main body and electrically activate to be provided between the outer wall of ratchet mounting post and be provided with bearing, the power input unit for electrically activating the driving mouthful that instrument is connected.The utility model replaces manpower with electric power, no matter gasoline engine causes starting reactance big because of high compression ratio, or low temperature environment hard-to-start, or igniter aging cause initial ignition rotating speed to lift (such as igniter is just lighted a fire in 2000RPM), relaxedly and rapidly start all without influence gasoline engine.

Description

It is a kind of to electrically activate ratchet structure for gasoline engine

Technical field

The utility model belongs to technical field of engines, refers in particular to a kind of electrically activate ratchet structure for gasoline engine.

Background technology

Because the start mode of hand-held Single Cylinder Gasoline Engine on current domestic and international market is substantially to pull back springing type rope Start.I.e. with starting drawstring is pulled, as illustrated in fig. 1 and 2, include starter cover 1, rope sheave 2 be provided with starter cover 1, Return spring is provided with rope sheave 2, drawstring 3 is wound on rope sheave 2, ratchet structure 4 is provided with rope sheave 2, one end of drawstring 3 is with rising Dynamic handle 5 is connected, and drawstring 3 drives the ratchet structure 4 on the synchronous rotary of rope sheave 2, rope sheave 2 to drive engine flywheel to start height simultaneously Speed rotation, reaches the purpose that engine is started.The starting structure electrically activates engine product without tradition will attach electric power storage like that Pond, relay and motor is started, it is thus simple in construction, it is very light in weight, with low cost, it is easy to maintenance；It is especially suitable for low and middle-end city The wilderness demand of field.

But, above-mentioned starting structure has following defects：

1st, due to being hand starter, so the arm strength to operator requires higher, flywheel, which must reach, to be not less than 800RPM rotating speed can just promote igniter fire, i.e. gasoline engine could normal starting.If operator is quick-fried without enough moments Have an effect and pull starting rope, gasoline engine can not ignition start.In addition its initial ignition rotating speed can be carried after igniter aging Rise, this just more increases the starting work burden of operator.

2nd, the gasoline engine compression ratio designed on the market at present is being continued to increase, and the purpose of high compression ratio is bigger in order to obtain Power output.But the starting difficulty that pulls of Gasoline Engines with High Compression Ratio .. is also to become big therewith, operator has to use bigger Instantaneous burst power carrys out the resistance of customer service high compression ratio, gasoline engine initial speed is reached the minimum fire speed of flywheel.

3rd, because hand starter accessory is mainly nylon withdrawal line, nylon rope sheave etc., nylon material is after weathering or high temperature Rigidity is not enough under environment, and the instantaneous burst power of special delivery operator is often buffered by itself flexibility, causes repeatedly to pull all It is difficult to starting up gasoline engine.

4th, in the cold start of pole low temp area (gasoline engine is cold state) gasoline engine, generally requiring to draw could rise many times Dynamic, the labor intensity of operator is very big.

The content of the invention

The purpose of this utility model is to provide a kind of gasoline engine that is used for for replacing manpower by electric power and electrically activates ratchet structure.

What the utility model was realized in：

It is a kind of to electrically activate ratchet structure, including starter cover for gasoline engine, it is provided with and electrically activates on starter cover Ratchet mounting post, it is axially arranged on ratchet mounting post is electrically activated to have through hole, electrically activate ratchet and include main body and set respectively Power input unit and ratchet portion at main body two ends, the power input unit is arranged in the through hole, in main body with electrically activating spine It is provided with bearing, the power input unit and is provided with for electrically activating the driving that instrument is connected between the outer wall for taking turns mounting post Mouthful.

It is above-mentioned it is a kind of for gasoline engine electrically activate ratchet structure, the driving mouth is square drive mouthful.

It is above-mentioned it is a kind of for gasoline engine electrically activate ratchet structure, the described ratchet mounting post one end that electrically activates is contracting The outer wall company of bulge loop, the outer ring of the bearing and the inwall connection of bulge loop, inner ring and reducing diameter part is provided with neck, the main body Connect.

It is above-mentioned it is a kind of for gasoline engine electrically activate ratchet structure, the outer ring of the bearing and the inwall mistake of bulge loop It is full of cooperation.

It is above-mentioned it is a kind of for gasoline engine electrically activate ratchet structure, the inner ring of the bearing and the outer wall of reducing diameter part Interference fit.

It is above-mentioned it is a kind of for gasoline engine electrically activate ratchet structure, the outer wall of the power input unit and through hole Gap is provided between inwall.

It is above-mentioned it is a kind of for gasoline engine electrically activate ratchet structure, the bearing is deep groove ball bearing.

The advantage that the utility model is protruded compared with prior art is：

1st, the utility model replaces manpower with electric power, and no matter gasoline engine causes starting reactance big because of high compression ratio, or low Warm environment hard-to-start, or igniter aging cause initial ignition rotating speed to lift (such as igniter is just lighted a fire in 2000RPM), not Gasoline engine can be influenceed relaxedly and rapidly to start.

2nd, the utility model weight and hand starter gasoline engine product weight are substantially suitable, operator is normally being used It will not feel to weigh and consume one's strength more very much during gasoline engine product.

3rd, the utility model accessory cost is substantially suitable with hand starter state, simple in construction, it is easy to maintain.

Brief description of the drawings

Fig. 1 is one of schematic diagram of starting structure of background technology hand-held Single Cylinder Gasoline Engine；

Fig. 2 is the two of the schematic diagram of the starting structure of background technology hand-held Single Cylinder Gasoline Engine；

Fig. 3 is one of structural representation of the present utility model；

Fig. 4 is the two of structural representation of the present utility model；

Fig. 5 is diagrammatic cross-section of the present utility model；

Fig. 6 is the front view that the utility model electrically activates ratchet；

Fig. 7 is the sectional view that the utility model electrically activates ratchet；

Fig. 8 is the rearview that the utility model electrically activates ratchet.

In figure：1st, starter cover；2nd, rope sheave；3rd, drawstring；4th, ratchet structure；5th, handle is started；10th, starter cover；20th, it is electric Start ratchet；201st, main body；202nd, power input unit；203rd, ratchet portion；204th, mouth is driven；205th, bulge loop；206th, technique via； 30th, bearing；40th, reducing diameter part.

Embodiment

The utility model is further described with specific embodiment below, referring to Fig. 3-8：

It is a kind of to electrically activate ratchet structure, including starter cover 10 for gasoline engine, it is provided with electricity on starter cover 10 Start ratchet mounting post, it is axially arranged on ratchet mounting post is electrically activated to have through hole, electrically activate ratchet 20 include main body 201 and Power input unit 202 and the ratchet portion 203 at the two ends of main body 201 are separately positioned on, the power input unit 202 is arranged on the through hole It is interior, in main body 201 and electrically activate to be provided with bearing 30, the power input unit 202 between the outer wall of ratchet mounting post and set Have for electrically activating the driving mouthful 204 that instrument is connected.By driving mouth 204 directly with electrically activating tool contact, transmission driving Moment of torsion.The instrument of electrically activating is one independently of the device beyond gasoline engine.Its principle can be similar to one pair of electric wrench, by Small size lithium battery driving, the output end and the driving design of mouth 204 for electrically activating instrument is coincide, and is connected quick and convenient.Wherein, ratchet Portion 203 is single direction ratchet.The material for electrically activating ratchet 20 is nylon+glass fibre.

Specifically, the driving mouth 204 is square drive mouthful.

Specifically, the described ratchet mounting post one end that electrically activates is provided with bulge loop 205 for necking part 40 in the main body 201, Main body 201 and bulge loop 205 are integral structures.The outer ring of the bearing 30 is connected with the inwall of bulge loop 205, inner ring and reducing diameter part 40 outer wall connection.

More specifically, the outer ring of the bearing 30 and the inwall of bulge loop 205 are interference fitted.During being electrically driven simultaneously Rotate at a high speed.

More specifically, the outer wall of the inner ring of the bearing 30 and reducing diameter part 40 is interference fitted.Electrically activating pawl wheel mistake Cheng Zhong, their remains stationaries.

Bearing 30 used in the present embodiment is deep groove ball bearing, to ensure to electrically activate between ratchet 20 and starter cover 10 Stable relative rotation at a high speed.

The interference of bearing 30 press-fits for convenience, and four technique vias 206 are provided with main body 201.

Appropriate gap must be all designed between the part of relative motion due to having, therefore, the power input unit 202 Gap is provided between outer wall and the inwall of through hole.Designed according to actual conditions in specific gap.

Operation principle of the present utility model is：

The output end for electrically activating instrument is connected in the driving mouthful 204 for electrically activating ratchet 20, is driven by electrically activating instrument Pawl wheel is electrically activated, the ratchet portion 203 for electrically activating ratchet is also rotated, while driving engine flywheel to open by ratchet portion 203 Begin to rotate at a high speed, reach the purpose that engine is started.

In addition, according to the statement of national standard, " starting " one word be used in manpower as the device of driving force above, " startup " One word is used in above using electric power as the device of driving force；Therefore this patent has used " starting " and " startup " two in different chapters and sections Vocabulary.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (7)

1. a kind of electrically activate ratchet structure, including starter cover (10) for gasoline engine, it is characterised in that：In starter cover (10) it is provided with and electrically activates ratchet mounting post, it is axially arranged on ratchet mounting post is electrically activated to have through hole, electrically activate ratchet (20) include main body (201) and be separately positioned on power input unit (202) and the ratchet portion (203), institute at main body (201) two ends State power input unit (202) to be arranged in the through hole, be provided between main body (021) and the outer wall for electrically activating ratchet mounting post It is provided with bearing (30), the power input unit (202) for electrically activating the driving mouthful (204) that instrument is connected.

2. a kind of ratchet structure is electrically activated according to claim 1 for gasoline engine, it is characterised in that：The driving mouth (204) it is square drive mouthful.

3. a kind of ratchet structure is electrically activated according to claim 1 or 2 for gasoline engine, it is characterised in that：The electricity It is to be provided with bulge loop (205) on necking part (40), the main body (201) to start ratchet mounting post one end, the bearing (30) Outer ring is connected with the inwall of bulge loop (205), the outer wall of inner ring and reducing diameter part (40) is connected.

4. a kind of ratchet structure is electrically activated according to claim 3 for gasoline engine, it is characterised in that：The bearing (30) outer ring and the inwall of bulge loop (205) are interference fitted.

5. a kind of ratchet structure is electrically activated according to claim 3 for gasoline engine, it is characterised in that：The bearing (30) outer wall of inner ring and reducing diameter part (40) is interference fitted.

6. a kind of ratchet structure is electrically activated according to claim 1 for gasoline engine, it is characterised in that：The power is defeated Enter and be provided with gap between the outer wall in portion (202) and the inwall of through hole.

7. a kind of ratchet structure is electrically activated according to claim 1 for gasoline engine, it is characterised in that：The bearing (30) it is deep groove ball bearing.