CN200958451Y - Releasing clutch of hand starter - Google Patents

Abstract

The utility model relates to a release and clutch device of a hand starter. Focusing on a current engine, the modes of an electric starting, an compressed air starting and a hydromotor starting are adopted, but the electric starting is not suitable for some environment; and moreover the compressed air starting and hydromotor starting has the disadvantages of complex structure, hugeness and high cost, and the electric starter is provided with a electromagnetic drive lever mechanism, realizing the engagement of a driving gear of the starter and a gear ring of the fly wheel, and the structure is complicated, so that a simple and compact structure is provided, which adopts the dished-spring energy storage, and the release and clutch device of the hand starter, which can release and clutch rapidly. The technical proposal is that: a release shaft 1 is arranged on a cover 6, and the left tail end eccentric shaft passes through the hole of the upper end of an upper joint 8, and the lower end external thread of the upper joint 8 is engaged with the internal thread of the cylinder of a connecting rod 3. a connecting pin 11 passes through the hole at the lower end of a lower adaptor 10 and the hole of a ratchet piece 4, and a ratchet pin 22 passes through an other hole of the ratchet piece 4 and fixed with a hole of a cover 6. A tie bar 19, which is arranged on the cover 6, is wrapped with a tie bar spring 20, and the left tail end of the tie bar 19 is inserted in the round hole on the left shaft in the center of a release shaft 1. A limiting screw 21 and the internal thread of the cover 6 is inserted into a 90-degree ring groove, which is arranged on the left shaft in the center of the release shaft 1, after engagement.

Description

The release of hand starter, engaging and disengaging gear

One, technical field

The utility model relates to the starting technique of motor, especially a kind of release of hand starter, engaging and disengaging gear.

Two, background technique

Any engine running operation need give to start in advance, just can make the motor normal operation.At the employed mini engine of microtilling machine, can use rope pulling or direct hand Starting mode; At the motor that motorcycle uses, can adopt foot-operated the startup, or electricity starts; For in, the big-block engine mode that adopts electric startup, comperssed air starting, oil hydraulic motor to start at present.Present widely used electricity starts, it is battery-driven actuating motor, and storage battery is by engine-driven generator charging, but at some situation actuating motor is unconformable, can produce electrical spark as actuating motor, be not suitable under environment such as colliery, offshore oil drilling, chemical plant, working; Can use pneumatic in above-mentioned these places or the oil hydraulic motor startup, though they are in use than the electric notor complexity, equipment is huge, and is effective still, and it is upward more worthwhile generally to be used in large-scale motor (＞8 liters), otherwise cost is higher.The electricity Starter has the Electromagnetic Drive leverage, realizes the engagement of starter driving gear and flywheel ring gear, and mechanism is comparatively complicated.

Three, summary of the invention

The purpose of this utility model provides a kind of simple in structure, adopts releasing rod and ratchet mechanical structure, the release of reliable, practical hand starter, engaging and disengaging gear.

Technological scheme that the purpose of this utility model adopts is, the left end that includes the main shaft of lid assembling is with flywheel driving gear, steel ball embeds in the hole and main shaft left end spiral chute of flywheel driving gear right-hand member, flywheel driving gear right-hand member and steel ball are with ratchet outward, the axle elastic scheibe of ratchet right-hand member is embedded in the flywheel driving gear right-hand member annular groove, main shaft left end afterbody is placed in the lid axis hole, be fixed between the check ring that assembles in lid upper spring seat ring and ratchet left side volute spring is arranged, the release axle right-hand member of its lid assembling has releasing rod, keep right and be wound with return spring on the axle in the centre, the centre keeps left and has 90 ° of annular grooves and circular hole on the axle, the left end afterbody is an eccentric shaft, the eccentric shaft that discharges axle left end afterbody passes the hole of upper binding head upper end, the lower end outside thread of upper binding head and the internal thread engagement of the cylindrical shell of connecting rod upper end, the notch that open the cylindrical shell lower end surface of connecting rod is passed in T-shaped lower union joint bottom, connecting pin passes the hole of sour jujube piece and the hole of lower union joint lower end, sour jujube piece pin passes another hole of sour jujube piece and the hole of lid is fixed, in the cylindrical shell of connecting rod, between upper binding head lower end surface and the lower union joint spring is arranged, be wound with pull-rod spring on the pull bar of lid device, pull bar left end afterbody is inserted the circular hole on a release middle axle that keeps left, and stop screw and lid internal thread mesh on the back insertion release middle axle that keeps left and have 90 ° of annular grooves.

The utility model, return spring one end is fixed on the lid, the other end is fixed on the releasing rod.

The utility model discharges axle shaft axis and pull bar shaft axis and at right angles intersects at grade.

The utility model discharges 90 ° of annular grooves having on the axle that keeps left in the middle of the axle and circular hole on same circumference.

Working procedure of the present utility model: start the preparatory stage at hand starter, the pulling pull bar, pull bar inserts the end that discharges axle and leaves the release axle, discharge axle and rotate about 90 degree in the effect lower edge of return spring Fig. 2 arrow direction, be Fig. 3 state, stop screw will limit the corner that discharges axle, eccentric shaft on the release axle drives connecting rod in rotation process descending, connecting rod is swung by the sour jujube piece pin that connecting pin promotion sour jujube piece installs around on lid, the claw of sour jujube piece is fallen, prepare against and ratchet engaged, begin artificial disc mechanical starter main axis rotation this moment, enters clutch and energy storage stage;

The moving main shaft of dish initially rotates about 0-140 degree along direction shown in Figure 4, spiral chute on the main shaft promotes steel ball to left movement, steel ball drives flywheel driving gear also to left movement, realize engagement with the engine flywheel gear ring, axle circlip drive ratchet on the flywheel driving gear and check ring are also to left movement simultaneously, finish the joint of ratchet and sour jujube piece, to stop the starter motor main shaft in thermal energy storage process, to rotate (see figure 3), connecting rod removes overcoat and also comprises upper binding head, spring, lower union joint, length can change with ratchet and sour jujube piece relative position stretches, the spring-leaf retainer that is fixed on the lid makes volute spring be compressive state, keeps ratchet and axle circlip to fit;

When needing start-up operation, promoting releasing rod makes the release axle rotate along Fig. 3 arrow direction, eccentric shaft on the release axle drives connecting rod in rotation process up, sour jujube piece and ratchet are thrown off, the starter motor stored energy can pass to engine flywheel by the flywheel driving gear that is enclosed within on the main shaft, and the end of pull bar falls back to discharging in the hole of axle under the pull-rod spring effect again simultaneously;

In case engine start success, the engine flywheel gear ring initiatively surmount rotation counter push away flywheel driving gear on main shaft spiral chute rotation and move right, engagement is thrown off, and flywheel driving gear and ratchet move right and return above-mentioned preparatory stage position under the volute spring effect.

The utlity model has simple and compact for structurely, fabrication and installation are convenient, use handling safety reliable, can discharge rapidly and clutch fast, and are energy-conservation, adapt to and hold different environment needs, and cost is low, safeguards characteristics such as simple.

Four, description of drawings

Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 is the utility model embodiment sectional structure partial schematic diagram;

Fig. 2 is that the utility model pull bar plays sour jujube block structure schematic representation;

Fig. 3 is that the utility model pull bar puts down sour jujube block structure schematic representation;

Fig. 4 is the utility model flywheel driving gear structural representation during state when stretching out.

Among the figure: 1-discharges axle 2-return spring 3-connecting rod 4-sour jujube piece 5-ratchet 6-lid 7-releasing rod 8-upper binding head 9-spring 10-lower union joint 11-connecting pin 12-steel ball 13-main shaft 14-flywheel driving gear 15-spring-leaf retainer 16-volute spring 17-check ring 18-axle circlip 19-pull bar 20-pull-rod spring 21-stop screw 22-sour jujube piece pin

Five, embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the left end that includes the main shaft 13 of lid 6 assemblings is with flywheel driving gear 14, steel ball 12 embeds in the hole and main shaft 13 left end spiral chutes of flywheel driving gear 14 right-hand members, flywheel driving gear 14 right-hand members and the steel ball 12 outer ratchets 5 that are with, the axle elastic scheibe 18 of ratchet 5 right-hand members is embedded in the flywheel driving gear 14 right-hand member annular grooves, main shaft 13 left end afterbodys are placed in lid 6 axis holes, be fixed between the check ring 17 that assembles in lid 6 upper spring seat rings 15 and ratchet 5 left sides volute spring 16 is arranged, release axle 1 right-hand member of its lid 6 assemblings has releasing rod 7, keep right and be wound with return spring 2 on the axle in the centre, the centre keeps left and has 90 ° of annular grooves and circular hole on the axle, the left end afterbody is an eccentric shaft, the eccentric shaft that discharges axle 1 left end afterbody passes the hole of upper binding head 8 upper ends, the lower end outside thread of upper binding head 8 and the internal thread engagement of the cylindrical shell of connecting rod 3 upper end, the notch that open the cylindrical shell lower end surface of connecting rod 3 is passed in T-shaped lower union joint 10 bottoms, connecting pin 11 passes the hole of sour jujube piece 4 and the hole of lower union joint 10 lower ends, sour jujube piece pin 22 passes another hole of sour jujube piece 4 and the hole of lid 6 is fixed, in the cylindrical shell of connecting rod 3, between upper binding head 8 lower end surfaces and the lower union joint 10 spring 9 is arranged, be wound with pull-rod spring 20 on the pull bar 19 of lid 6 devices, pull bar 19 left end afterbodys are slotting to the circular hole that discharges on the 1 middle axle that keeps left, and stop screw 21 meshes on the back insertion release axle 1 middle axle that keeps left with lid 6 internal threads and has 90 ° of annular grooves.Return spring 2 one ends are fixed on the lid 6, the other end is fixed on the releasing rod 7.Discharging axle 1 shaft axis and pull bar 19 shaft axiss at right angles intersects at grade.Discharge 90 ° of annular grooves having on the axle that keeps left in the middle of the axle 1 and circular hole on same circumference.

Claims (4)

1, a kind of release of hand starter, engaging and disengaging gear, the left end that includes the main shaft (13) of lid (6) assembling is with flywheel driving gear (14), steel ball (12) embeds in the hole and main shaft (13) left end spiral chute of flywheel driving gear (14) right-hand member, the outer ratchet (5) that is with of flywheel driving gear (14) right-hand member and steel ball (12), the axle elastic scheibe (18) of ratchet (5) right-hand member is embedded in flywheel driving gear (14) the right-hand member annular groove, main shaft (13) left end afterbody is placed in lid (6) axis hole, be fixed between the check ring (17) that assembles in lid (6) upper spring seat ring (15) and ratchet (5) left side volute spring (16) is arranged, release axle (1) right-hand member that it is characterized in that lid (6) assembling has releasing rod (7), keep right and be wound with return spring (2) on the axle in the centre, the centre keeps left and has 90 ° of annular grooves and circular hole on the axle, the left end afterbody is an eccentric shaft, the eccentric shaft that discharges axle (1) left end afterbody passes the hole of upper binding head (8) upper end, the cylindrical shell upper end internal thread engagement of the lower end outside thread of upper binding head (8) and connecting rod (3), the notch that open the cylindrical shell lower end surface of connecting rod (3) is passed in T-shaped lower union joint (10) bottom, connecting pin (11) passes the hole of sour jujube piece (4) and the hole of lower union joint (10) lower end, sour jujube piece pin (22) passes another hole of sour jujube piece (4) and the hole of lid (6) is fixed, between (8) lower end surface of upper binding head in the cylindrical shell of connecting rod (3) and the lower union joint (10) spring (9) is arranged, be wound with pull-rod spring (20) on the pull bar (19) of lid (6) device, pull bar (19) left end afterbody is inserted to the circular hole that discharges on spool (1) middle axle that keeps left, and has 90 ° of annular grooves on the axle that keeps left in the middle of stop screw (21) and lid (6) the internal thread engagement back insertion release spool (1).

2, the release of a kind of hand starter according to claim 1, engaging and disengaging gear is characterized in that return spring (2) one ends are fixed on the lid (6), the other end is fixed on the releasing rod (7).

3, the release of a kind of hand starter according to claim 1, engaging and disengaging gear is characterized in that discharging axle (1) shaft axis and pull bar (19) shaft axis at right angles intersects at grade.

4, the release of a kind of hand starter according to claim 1, engaging and disengaging gear is characterized in that discharging and keep left 90 ° of annular grooves having on axle and circular hole in the middle of the axle (1) on same circumference.

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