CN102182550B

CN102182550B - Engine for tricycle

Info

Publication number: CN102182550B
Application number: CN 201110088121
Authority: CN
Inventors: 钟贤; 廖伦勇
Original assignee: CHONGQING SHINERAY MOTORCYCLE CO LTD
Current assignee: CHONGQING SHINERAY MOTORCYCLE CO LTD
Priority date: 2011-04-08
Filing date: 2011-04-08
Publication date: 2012-12-26
Anticipated expiration: 2031-04-08
Also published as: CN102182550A

Abstract

The invention discloses an engine for a tricycle, which comprises an engine case body, wherein a crankshaft and a main shaft are arranged in the engine case body, the main shaft is parallel with the axis of the crankshaft and is connected with the crankshaft by a clutch device, an auxiliary shaft is arranged in the engine case body, and the axis of the auxiliary shaft and the axis of the main shaft can form an included angle of 90 degrees; the upper periphery of the main shaft is provided with an driving bevel gear, the auxiliary shaft is provided with a driven bevel gear, the driving bevel gear and the driven bevel gear are matched and meshed with each other, and the driving bevel gear can drive the driven bevel gear to rotate, and further drive the auxiliary shaft to rotate. The engine provided by the invention is not provided with a shift mechanism, which can reduce the number of used parts and largely reduce the costs of the engine; based on the simplified inner parts of the engine, the engine mechanism can be simplified, the mechanical loss of the engine can be lessened, the failure rate of the engine can be decreased, the mechanical noise of the engine can be reduced, the engine assembly can be simplified, the operation can be more simple and convenient and the maintenance difficulty can be lowered.

Description

The three-wheel vehicular engine

Technical field

The present invention relates to a kind of power plant, especially tricycle that power is provided for motor vehicle (tricycle) with the motor in the power plant.

Background technique

Tricycle often uses under the situation of high load, inclement condition, and very most of car owner is used for carrying, loading, and is the overload loading, causes its power plant to be easy to generate fault, and especially motor more is easy to generate wearing and tearing, damage etc.The motor of existing technology tricycle; What existing tricycle engine used is the motorcycle engine of two-wheeled; In order to make the two-wheel car engine can satisfy usage requirement; Need original chain-driven form be changed to the shaft drive form, in addition, also need on tricycle, to be provided with advance, backward gear.Therefore needing increases by a reverse gear at the output shaft of motor, and as shown in Figure 1, the motor original structure is constant; The output terminal of engine countershaft assembly 1a is provided with a reverse gear 2a; Engine power is given initiatively cone gear 3a through spline with transmission of power by countershaft assembly 1a, by circular cone driving gear 3a with transmission of power to two driven bevel gear 4a that are engaged with simultaneously and driven bevel gear 7a, stir reverse shift fork 6a at this moment; Shift fork 6a just stirs spline housing 5a and the engagement of driven bevel gear 7a internal spline; Power just is delivered to spline housing 5a by driven bevel gear 7a, is delivered to the splined shaft 8a of internal spline engagement with it by spline housing 5a, and forward gear is accomplished thus; If will use reverse gear, then shift fork 6a to be stirred to opposite direction, this moment, spline housing 5a and driven bevel gear 4a formed engagement, and power outputs to splined shaft 8a by driven bevel gear 4a, and reverse gear is accomplished thus.For satisfying the usage requirement of tricycle, also need one speed-changing gear box be set at the back, and a gearshift mechanism need be set on gearbox at this output shaft that increases.In addition, tricycle also needs parking device, and parking device is provided with the halting mechanism of controlling specially again, this shows, existing three-wheel vehicular engine has following problem,

1, outside the two-wheel vehicle motor, tricycle also needs other assisting agencies could keep tricycle normally to use, and therefore needs to increase extra cost,

2, the increase of mechanism causes the motor assembling complicated,

3, because of bevel gear end thrust when working is bigger, the situation generation that the reverse gear connecting thread damages often appears, and cause the engine failure rate to raise, maintenance cost increases,

4, the increase of gearshift is in use operated the motor that has gearshift originally and is become complicated more, is unfavorable for the simplification of controlling.

Summary of the invention

The objective of the invention is problem, a kind of special engine of motor tricycle is provided, can directly change the chain-driven form of original motor into the shaft drive form to above-mentioned existing technology existence; Simplify the available engine structure; Reduce production costs, and make motor more reliable, behind the gearbox that cooperation is provided with thereafter; Can realize continuous gear shift easily, alleviate operator's labor intensity.

The objective of the invention is to realize like this: the three-wheel vehicular engine, comprise engine housing, in engine housing, be provided with piston, connecting rod, bent axle and main shaft, the parallel axes of main shaft and bent axle; It is characterized in that: main shaft is connected with bent axle through engaging and disengaging gear, when bent axle rotates, can drive main shaft through the combination of engaging and disengaging gear and rotate, or through the centrifugation of engaging and disengaging gear main shaft not rotated; Countershaft is set in engine housing, and the axis of countershaft and the axis of main shaft form 90 degree angles; On main shaft, circumferentially be provided with initiatively cone gear, countershaft is provided with driven bevel gear, and initiatively cone gear matches with driven bevel gear and meshes, and initiatively cone gear can drive the driven bevel gear rotation, rotates thereby drive countershaft.

Further characteristic is: countershaft is provided with the shaft coupling structure.

Said engaging and disengaging gear is provided with driving gear and the driven gear that is meshed, and driving gear adopts spline to be connected with bent axle, and driven gear flexibly connects on engaging and disengaging gear, and driven gear cooperates with gap of main reinforcement, can drive main shaft and rotate.

Two groups of bearings are set on main shaft, between two groups of bearings, oil sealing are set.

Two groups of spring bearings are set on countershaft, and two groups of spring bearings all are arranged in the coupling flange, are arranged on through coupling flange on the left box body of engine housing, between coupling flange and left box body, the oil seal washer of O type are set.

Outside near the spring bearing of countershaft output terminal is provided with the fluid seal ring.

Between coupling flange assembled end and engine housing, be provided with the adjustment packing ring, the adjustment packing ring is in order to the gear clearance of adjustment active cone gear or driven bevel gear.

At the tail end of countershaft, packing ring and nut are set, the outside thread on nut and countershaft tail end surface matches and is connected, through packing ring and nut with the detachable tail end that is connected countershaft of shaft coupling structure.

The power of motor of the present invention is exported by bent axle; Spline fitted through with the clutch driving gear arrives the clutch driving gear with transmission of power; Cooperate with driven gear transmission of power to clutch through the clutch driving gear; By clutch with transmission of power to driving shaft; Through circumferentially fixing active cone gear transmission of power is arrived the driven bevel gear that cooperates with it, the driven bevel gear that circumferentially is fixed in driven shaft arrives driven shaft with transmission of power, and driven shaft outputs power through spline again.

Motor of the present invention with respect to existing technology, has following characteristics owing to adopted such scheme:

1, engine interior no longer is provided with gearshift mechanism, the minimizing of part, and the motor cost greatly reduces;

2, the simplification of part in the motor makes motor mechanisms more simple, and the engine mechanical loss reduces;

3, the simplification of engine power transmission makes the engine failure rate reduce;

4, the motor assembling is oversimplified more;

5, the minimizing of engine interior moving parts, favourable to reducing the engine mechanical noise;

6, because all gear shift part is all focused on gearbox, make that the operation of tricycle is more easy;

7, maintenance difficulty also is minimized.

Description of drawings

Fig. 1 is that tricycle of the prior art is with engine structure schematic representation (analysing and observe);

Fig. 2 is that tricycle of the present invention is used the engine structure plan view;

Fig. 3 be Fig. 2 along A-A to sectional view.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is further specified.

In Fig. 2,3; Three-wheel vehicular engine of the present invention comprises engine housing 1, connecting rod 2, connecting rod 3, bent axle 4 and main shaft 5, and connecting rod 2, connecting rod 3, bent axle 4 and main shaft 5 all are arranged in the engine housing 1; Connecting rod 2, connecting rod 3, bent axle 4 all are the parts of available engine; The parallel axes of main shaft 5 and bent axle 4, main shaft 5 is connected with bent axle 4 through engaging and disengaging gear 6, when bent axle 4 rotates, can the moment of torsion of bent axle be passed to main shaft 5 through combination drive main shaft 5 rotations of engaging and disengaging gear 6; Or the centrifugation through engaging and disengaging gear 6 cuts off the power of bent axle 4, and bent axle 4 can not drive main shaft 5 and rotate.The structure of engaging and disengaging gear 6 has multiple; The invention discloses the concrete structure shown in a kind of as the figure, i.e. a kind of concrete linkage structure of engaging and disengaging gear 6 and bent axle 4 and main shaft 5, engaging and disengaging gear 6 is provided with the driving gear 7 and driven gear 8 that is meshed; Driving gear 7 adopts spline to be connected with bent axle 4; The driven gear 8 of the clutch device that cooperates with driving gear 7 flexibly connects (fixing) on engaging and disengaging gear 6, and driven gear 8 and main shaft 5 Spielpassung can drive main shaft 5 and rotate; The moment of torsion of bent axle 4 is delivered on the main shaft 5 through driving gear 7, driven gear 8.

Countershaft 9 (driven shaft, the driven shaft of outputting power) is set in engine housing 1, and countershaft 9 can substantially horizontal be installed in the engine housing 1, and the axis of countershaft 9 forms 90 degree angles (vertical each other) with the axes intersect of main shaft 5; On main shaft 5,, circumferentially be provided with (being fixed with) initiatively cone gear 10 usually in its tail end (with the connecting end of countershaft 9); On countershaft 9; Usually be provided with driven bevel gear 11 at its head end (with the connecting end of main shaft 5), initiatively cone gear 10 matches with driven bevel gear 11 and meshes, and initiatively cone gear 10 can drive driven bevel gear 11 rotations; Thereby driving countershaft 9 rotates; The moment of torsion of bent axle 4 is passed through engaging and disengaging gear 6, main shaft 5, active cone gear 10, driven bevel gear 11, pass to countershaft 9, countershaft 9 passes to the input shaft of the gearbox of back connection again.The tail end of countershaft 9 is provided with shaft coupling structure 12; Shaft coupling structure 12 is spline, keyway, coupling, universal joint etc., and countershaft 9 is connected through the input shaft of shaft coupling structure 12 with the gearbox of back, outputs power to gearbox; Gearbox is provided with and comprises a plurality of gears that reverse gear; In gearbox, realize the variation of gear (speed),, reach the usage requirement of tricycle to adapt to the needs that go.Said active cone gear 10 can adopt spline to be connected with main shaft 5, driven bevel gear 11 with countershaft 9; Perhaps adopt interference fit; Perhaps on main shaft 5 or countershaft 9 directly process initiatively cone gear 10 or driven bevel gear 11, all can reach same effect.

Engine housing 1 is connected and composed by left box body 1A and right case 1B usually, for the rotation of supports main shaft 5, two groups of bearings 13 is set on main shaft 5, oil sealing 14 is set, with shutoff lubricant oil between two groups of bearings 13; Two groups of bearings 13 can all be arranged on right case 1B, or one group of bearing 13 is arranged on the left box body 1A, and another group bearing 13 is arranged on the right case 1B, all can play the good supporting effect.In order to support the rotation of countershaft 9; All be arranged in the coupling flange 16 in that 15, two groups of spring bearings 15 of two groups of spring bearings are set on the countershaft 9, be arranged on through coupling flange 16 on the left box body 1A of engine housing 1; Between coupling flange 16 and left box body 1A; Be between the inner cylindrical surface of external cylindrical surface and left box body 1A of coupling flange 16, O type oil seal washer 17 is set, prevent that lubricant oil is to external leakage; Outside (the one group of spring bearing 15 in outside) near the spring bearing 15 of countershaft 9 output terminals is provided with oil seal washer 18, prevent lubricant oil through the outer end of spring bearing 15 to external leakage.Between coupling flange 16 assembled end and engine housing 1, adjustment packing ring 19 is set, use the gear clearance of adjustment packing ring 19 in order to adjustment active cone gear 10 or driven bevel gear 11.At the tail end of countershaft 9, packing ring 20 and nut 21 are set, nut 21 matches with the outside thread on countershaft 9 tail ends surface and screws in, through packing ring 20 and nut 21 with shaft coupling structure 12 detachable countershaft 9 tail ends that are connected.

Engine power transfer route of the present invention: power is by bent axle 4 outputs; Through with the spline fitted of the driving gear 7 of engaging and disengaging gear with the driving gear 7 of transmission of power to engaging and disengaging gear; Cooperate with driven gear 8 transmission of power to engaging and disengaging gear 6 through engaging and disengaging gear driving gear 7; By engaging and disengaging gear 6 with transmission of power to main shaft 5, through circumferentially fixing active cone gear 10 with transmission of power to the driven bevel gear 11 that cooperates with it, the driven bevel gear 11 that circumferentially is fixed in countershaft 9 with transmission of power to countershaft 9; Countershaft 9 is connected with the input shaft of gearbox through the shaft coupling structure again, outputs power to gearbox.

Claims

1. the three-wheel vehicular engine comprises engine housing (1), in engine housing (1), is provided with connecting rod (2), connecting rod (3), bent axle (4) and main shaft (5), the parallel axes of main shaft (5) and bent axle (4); It is characterized in that: main shaft (5) is connected with bent axle (4) through engaging and disengaging gear (6); The combination that when bent axle (4) rotates, can pass through engaging and disengaging gear (6) drives main shaft (5) and rotates, or through the centrifugation of engaging and disengaging gear (6) main shaft (5) is not rotated; Countershaft (9) is set in engine housing (1), and the axis of the axis of countershaft (9) and main shaft (5) forms 90 degree angles; On main shaft (5), circumferentially be provided with initiatively cone gear (10); Countershaft (9) is provided with driven bevel gear (11); Initiatively cone gear (10) matches with driven bevel gear (11) and meshes; Initiatively cone gear (10) can drive driven bevel gear (11) rotation, rotates thereby drive countershaft (9);

Two groups of bearings (13) are set on main shaft (5), oil sealing (14) is set between two groups of bearings (13);

Two groups of spring bearings (15) are set on countershaft (9); Two groups of spring bearings (15) all are arranged in the coupling flange (16); Be arranged on through coupling flange (16) on the left box body (1A) of engine housing (1); Between coupling flange (16) and left box body (1A), O type oil seal washer (17) is set.

2. according to the said three-wheel vehicular engine of claim 1, it is characterized in that: the tail end of countershaft (9) is provided with shaft coupling structure (12).

3. according to claim 1 or 2 said three-wheel vehicular engines; It is characterized in that: said engaging and disengaging gear (6) is provided with driving gear (7) and the driven gear (8) that is meshed; Driving gear (7) adopts spline to be connected with bent axle (4); Driven gear (8) flexibly connects on engaging and disengaging gear (6), and driven gear (8) and main shaft (5) Spielpassung can drive main shaft (5) and rotate.

4. according to claim 1 or 2 said three-wheel vehicular engines, it is characterized in that: the outside near the spring bearing (15) of countershaft (9) output terminal is provided with oil seal washer (18).

5. according to the said three-wheel vehicular engine of claim 4; It is characterized in that: between coupling flange (16) assembled end and engine housing (1), be provided with adjustment packing ring (19), adjustment packing ring (19) is in order to the gear clearance of adjustment active cone gear (10) or driven bevel gear (11).

6. according to claim 1 or 2 said three-wheel vehicular engines; It is characterized in that: tail end in countershaft (9); Packing ring (20) and nut (21) are set; The outside thread on nut (21) and countershaft (9) tail end surface matches and screws in, through packing ring (20) and nut (21) with detachable countershaft (9) tail end that is connected of shaft coupling structure (12).