CN2496907Y

CN2496907Y - Anti-reverse turn mechanism of small-power tractor

Info

Publication number: CN2496907Y
Application number: CN 01245374
Authority: CN
Inventors: 蔡竹青
Original assignee: CHANGZHOU LEILI ELECTRICAL EQU
Current assignee: Changzhou Leshi Leili Motor Co Ltd
Priority date: 2001-08-13
Filing date: 2001-08-13
Publication date: 2002-06-26
Anticipated expiration: 2011-08-13

Abstract

The utility model relates to a full automatic washing machine drain valve retractor star mechanism, an axial 1 is sleeved with a clutch lever and a duplicate transitional gear, an axial 1 is sleeved with a clutch gear, a spring and a duplicate star wheel and a satellite gear, an axial 3 is sleeved with a star rod, an axial 4 is sleeved with duplicate output wheel. The utility model adopts five components linkage, i.e. duplicate output wheel drive a clutch lever, a clutch lever, a star rod, and a clutch wheel adopts linkage control duplicate star wheel, duplicate star wheel prevents the double linkage output wheel from counter rotating. The utility model is compact in structure and reliable in working performance. Since the clutch lever did not consume the torque of the electro-motor, therefore the utility model can save energy.

Description

The anti-reverse turn mechanism of small-power tractor

Technical field

The utility model relates to the anti-reverse turn mechanism of small-power tractor, specifically a kind of anti-reverse turn mechanism of automatic washing machine draining valve tractor.

Background technology

Opening by the tractor traction of automatic washing machine draining valve must continue to keep traction state after traction finishes, otherwise draining valve can be returned to closing state under the effect of external force, so tractor must have anti-reverse turn mechanism.Anti-reverse turn mechanism can make tractor continue to keep traction state after traction finishes.Anti-reverse turn mechanism in the existing tractor has employing jump ring transferring power, shown in Figure 1 is the state diagram of existing circlip type anti-reverse turn mechanism in distraction procedure, jump ring 0-3 is installed in the jump ring wheel 0-2 on jump ring axle sleeve top, jump ring axle sleeve bottom has ratchet 0-1, drives the jump ring axle sleeve by jump ring 0-3 and rotates.When the moment that traction finishes, as shown in Figure 2 the ratchet of jump ring axle sleeve 0-3 just in time with the ratchet engaged of uniting the contrary wheel of system 0-4, ratchet props up ratchet and reverses, and makes tractor be in traction state.The structure of above-mentioned employing jump ring transferring power, if jump ring is hard, friction is bigger, can increase the load of motor; If jump ring is soft, do not drive jump ring axle sleeve 0-1 and rotate, cause ratchet can't with ratchet engaged, do not have the purpose that stops ratchet to reverse, so the manufacture difficulty of jump ring is bigger, and the less stable of jump ring, so transmission performance is unreliable.

Summary of the invention

The utility model purpose is to propose the anti-reverse turn mechanism of the reliable small-power tractor of a kind of transmission performance.

The technical measures that the utility model is taked are that this anti-reverse turn mechanism has I axle, II axle, III axle and the IV axle that is fixed on the tractor base;

Be equipped with clutch lever and the duplex transition gear that is in the clutch lever top on the I axle, clutch lever has scalloped end face cam, feeler lever and stirs groove, and the working curved surface end of the scalloped end face cam of clutch lever is provided with open slot;

The scalloped end face cam of the clutch lever on the I axle is enclosed within the foot of II axle by the open slot on its working curved surface end, be nested with clutch gear, spring, the contrary wheel of duplex system and planetary gear on the II axle and above the working curved surface end of scalloped end face cam successively, the contrary wheel of duplex system is made up of the ratchet and the upper pinion of bottom; Clutch gear and generator shaft gear engagement, the bottom surface wheel hub of clutch gear contacts with scalloped end face cam working curved surface, by the engagement of the end tooth on the bottom face of end tooth on the top end face of clutch gear and ratchet, the gear wheel of the duplex transition gear on planetary output gear and the I axle meshes between the contrary wheel of clutch gear and the duplex system lower ratchet;

The contrary bar of the system of being equipped with on the III axle, the contrary bar of system has ratchet and slide block; The slide block of the contrary bar of system stretches into stirring in the groove of clutch lever on the I axle, the ratchet of the contrary bar of system can with the ratchet engaged of the contrary wheel of duplex system on the II axle;

Be equipped with the duplex output wheel on the IV axle, the duplex output wheel is made up of top gear wheel and lower cam, duplex output wheel top is connected with sheave, the pinion of the duplex transition gear on the gear wheel of duplex output gear and the I axle, the feeler lever of the clutch lever on the I axle contacts with the cam working face of duplex output wheel.

Above-mentioned planetary gear has external gear, be provided with three planet pinions in the external gear chamber, planet pinion not only with the internal tooth engagement of external gear and but also with the pinion of the contrary wheel of the duplex system that is positioned at the external gear chamber, the axle of planet pinion is fixed between the base plate of pinion frame and planetary output gear.

The utility model adopts five interlocks, and promptly the duplex output wheel drives clutch lever, and clutch lever, the contrary bar of system and clutch gear adopt the contrary wheel of interlock control duplex system, and the contrary wheel of duplex system stops the duplex output wheel to reverse the utility model compact conformation reliable working performance.Because the moment that clutch lever does not consume motor, so economize energy.

Description of drawings

Fig. 1 is the schematic diagram of existing anti-reverse turn mechanism when non-on-position;

Fig. 2 is the schematic diagram of existing anti-reverse turn mechanism when on-position;

Fig. 3 is the utility model structural representation (blast) figure;

Fig. 4 is the three-dimensional diagrammatic sketch of the utility model clutch lever;

Fig. 5 is the three-dimensional diagrammatic sketch of the utility model combination gear (reflection end face);

Fig. 6 is the three-dimensional diagrammatic sketch of the utility model combination gear (reflection bottom surface);

Fig. 7 is (reflection bottom surface) three-dimensional diagrammatic sketch of the contrary wheel of the utility model duplex system;

Fig. 8 is the planetary cutaway view of the utility model;

Fig. 9 is the three-dimensional diagrammatic sketch of the contrary bar of the utility model system;

Figure 10 is the non-on-position diagrammatic sketch of the utility model clutch lever and duplex output wheel;

Figure 11 is the utility model clutch lever and duplex output wheel on-position diagrammatic sketch;

Figure 12 is the non-on-position of a utility model plane schematic diagram;

Figure 13 is the novel on-position of a utility model plane schematic diagram.

The specific embodiment

See Fig. 3, embodiment has I axle 1, II axle 2, III axle 3, IV axle 4 and the motor shaft 5 that is fixed on the tractor base 6, on the motor shaft 5 generator shaft gear 10 is installed.

See Fig. 3 and Fig. 4, be equipped with clutch lever 1-1 and the duplex transition gear 1-2 that is in clutch lever 1-1 top on the I axle 1; Clutch lever 1-1 has scalloped end face cam 1-11, feeler lever 1-12 and stirs groove 1-13, the working curved surface end of the scalloped end face cam 1-11 of clutch lever 1-1 has high protruding 1-11-11 and low platform 1-11-12, high protruding, low interstation is connected by steeper slope, so the working curved surface 1-11-1 of the scalloped end face cam 1-11 of clutch lever 1-1 is the ladder curved surface, and be provided with the arc opening groove 1-11-2 that is communicated with high protruding, low platform at the working curved surface end of scalloped end face cam 1-11; Duplex transition gear 1-2 is made up of lower pinion 1-21 and top gear wheel 1-22.

See Fig. 3 to Fig. 8, the scalloped end face cam 1-11 of clutch lever 1-1 is nested with clutch gear 2-1, spring 2-2, duplex system contrary wheel 2-3 and planetary gear 2-4 successively by the foot that the deep-slotted chip breaker 1-11-2 on its working curved surface end is enclosed within II axle 2 on the II axle 2 and above the working curved surface end of scalloped end face cam; Clutch gear 2-1 and generator shaft gear 10 engagements, the top end face of clutch gear 2-1 is provided with end tooth 2-12 (see figure 5), the bottom surface of clutch gear 2-1 has wheel hub 2-11 (see figure 6), and the bottom surface wheel hub 2-11 of clutch gear 2-1 contacts with scalloped end face cam 1-11 working curved surface 1-11-1; The contrary wheel of duplex system 2-3 is made up of the ratchet 2-31 and the upper pinion 2-32 of bottom; The bottom face of the contrary wheel of duplex system 2-3 lower ratchet 2-31 is provided with end tooth 2-31-1 (see figure 7), passes through the end tooth 2-31-1 engagement of end tooth 2-12 and the ratchet 2-31 of clutch gear 2-1 between the contrary wheel of clutch gear 2-1 and the duplex system 2-3 lower ratchet 2-31; Planetary gear 2-4 shown in Figure 8 has external gear 2-42, the upper pinion 2-32 of the contrary wheel of duplex system 2-3 stretches in the external gear 2-42 chamber 2-42-3, be provided with three planet pinion 2-43 in the external gear 2-42 chamber 2-42-3, planet pinion 2-43 not only with the internal tooth engagement of external gear 2-42 and but also with the pinion 2-32 engagement of the contrary wheel of the duplex system that is positioned at external gear 2-42 chamber, the axle 2-44 of planet pinion 2-43 is fixed between the base plate 2-41-1 of pinion frame 2-45 and planetary output gear 2-41; The gear wheel 1-22 engagement of the output gear 2-41 of planetary gear 2-4 and the duplex transition gear 1-2 on the I axle 1.

See Fig. 3 and Fig. 9, the contrary bar 3-1 of the system of being equipped with on the III axle 3, the contrary bar 3-1 of system has ratchet 3-11 and slide block 3-12; The slide block 3-12 of the contrary bar of system stretches into stirring in the groove 1-13 of clutch lever on the I axle 1, the ratchet 3-11 of the contrary bar of system can with the ratchet 2-31 engagement of the contrary wheel of duplex system on the II axle 2.

See Fig. 3, Figure 10 and Figure 11, be equipped with duplex output wheel 4-1 on the IV axle 4, the duplex output wheel is made up of top gear wheel 4-11 and lower cam 4-12, and duplex output wheel 4-1 top spline is connected with sheave 4-2; Has breach 4-12-1 on the working curved surface of the lower cam 4-12 of duplex output wheel, pinion 1-23 and the engagement of the gear wheel 4-11 of duplex output gear and the duplex transition gear 1-2 on the I axle 1, the feeler lever 1-12 of the clutch lever 1-1 on the I axle 1 contacts with the cam 4-12 working face of duplex output wheel 4-1.

See Fig. 3,10,11,12 and Figure 13, the utility model is when non-on-position, the ratchet 2-31 of the ratchet 3-11 of the contrary bar of system and the contrary wheel of duplex system breaks away from, clutch gear 2-1 bottom surface wheel hub 2-11 contacts with the high protruding 1-11-11 of scalloped end face cam working curved surface end, the ratchet 2-31 engagement of the contrary wheel of clutch gear 2-1 and duplex system 2-3.The traction beginning, motor rotates, by the gear on the motor shaft 5 10, with the clutch gear 2-1 of gear 10 engagement, drive planetary gear 2-4 with the contrary wheel of the duplex system 2-3 of clutch gear 2-1 engagement and rotate, drive duplex transition gear 1-2 and then drive duplex output wheel 4-1, sheave 4-2 by the output gear 2-41 of planetary gear 2-4 and rotate; Sheave 4-2 is connected with water discharging valve by pull rope, in distraction procedure, rotation along with duplex output wheel 4-1, breach 4-12-1 on the cam 4-12 working face of duplex output wheel 4-1 is gradually near feeler lever 1-12, insert among the breach 4-12-1 until feeler lever 1-12, because duplex output wheel 4-1 continues rotating, the feeler lever 1-12 that inserts among the breach 4-12-1 is stirred, and clutch lever 1-1 is rotated; In the rotation process of clutch lever 1-1, on the one hand be to stir slide block 3-12 in the groove 1-13 and drive the contrary bar 3-1 of system and rotate by being in clutch lever, the ratchet 3-11 that makes the contrary bar 3-1 of system is gradually near the ratchet 2-31 of the contrary wheel of duplex system; The scalloped end face cam 2-11 working curved surface of clutch lever 1-1 moves under the wheel hub 2-11 of clutch gear 2-1 bottom surface on the other hand, when clutch gear 2-1 bottom surface wheel hub 2-11 contacts with the high protruding 2-11-11 of scalloped end face cam 2-11 working curved surface 2-11-1 then contacts with the low platform 2-11-12 of scalloped end face cam 2-11 working curved surface 2-11, because the high protruding and low interstation of scalloped end face cam 2-11 working curved surface 2-11-1 is connected by steeper slope, this moment, clutch gear 2-1 had an action of drop, under spring 2-2 effect, the contrary wheel of clutch gear 2-1 and duplex system 2-3 moment breaks away from engagement, the contrary wheel of duplex system 2-3 stall, in clutch gear 2-1 drop, just clutch gear 2-1 and duplex system are contrary takes turns the out-of-gear while of 2-3, the ratchet 3-11 of the contrary bar 3-1 of system just in time meshes with the ratchet 2-31 of duplex system against wheel 2-3, this engagement makes ratchet 3-11 prop up the reverse of the contrary wheel of duplex system 2-3, this moment, traction finished, draining valve is opened, and tractor is the traction braking shape.When needs discharge traction state, the motor stall, the control cam disengages control of another mechanism, sheave 4-2 recovers original state under external force, waits for energising traction once more.

Claims

1, a kind of anti-reverse turn mechanism of small-power tractor comprises the gear (10) that is installed on the motor shaft (5), it is characterized in that: this anti-reverse turn mechanism has I axle (1), II axle (2), III axle (3) and the IV axle (4) that is fixed on the tractor base (6);

Be equipped with clutch lever (1-1) on the I axle (1) and be in the duplex transition gear (1-2) of clutch lever (1-1) top, clutch lever (1-1) has scalloped end face cam (1-11), feeler lever (1-12) and stirs groove (1-13), and the working curved surface end of the scalloped end face cam (1-11) of clutch lever (1-1) is provided with open slot (1-11-2);

The scalloped end face cam (1-11) of the clutch lever (1-1) on the I axle (1) is enclosed within the foot of II axle (2) by the open slot (1-11-2) on its working curved surface end, II axle (2) is gone up and is nested with clutch gear (2-1), spring (2-2), the contrary wheel of duplex system (2-3) and planetary gear (2-4) successively in the working curved surface end top of scalloped end face cam (1-11), and the contrary wheel of duplex system (2-3) is made up of the ratchet (2-31) and the upper pinion (2-32) of bottom; Clutch gear (2-1) and generator shaft gear (10) engagement, the bottom surface wheel hub (2-11) of clutch gear (2-1) contacts with scalloped end face cam (1-11) working curved surface (1-11-1), mesh gear wheel (1-22) engagement of the duplex transition gear (1-2) on the output gear (2-41) of planetary gear (2-4) and the I axle (1) between clutch gear (2-1) and duplex system contrary wheel (2-3) lower ratchet (2-31) by the end tooth (2-31-1) on the bottom face of end tooth (2-12) on the top end face of clutch gear (2-1) and ratchet (2-31);

The contrary bar (3-1) of the system of being equipped with on the III axle (3), the contrary bar (3-1) of system has ratchet (3-11) and slide block (3-12); The slide block (3-12) of the contrary bar of system stretches into stirring in the groove (1-13) of clutch lever on the I axle (1), the ratchet (3-11) of the contrary bar of system can with ratchet (2-31) engagement of the contrary wheel of duplex system on the II axle (2);

Be equipped with duplex output wheel (4-1) on the IV axle (4), the duplex output wheel is made up of top gear wheel (4-11) and lower cam (4-12), and duplex output wheel (4-1) top is connected with sheave (4-2); Pinion (1-21) engagement of the duplex transition gear (1-2) on gear wheel of duplex output gear (4-11) and the I axle (1), the feeler lever (1-12) of the clutch lever (1-1) on the I axle (1) contacts with cam (4-12) working face of duplex output wheel (4-1).

2, the anti-reverse turn mechanism of small-power tractor according to claim 1, it is characterized in that: planetary gear (2-4) has external gear (2-42), be provided with three planet pinions (2-43) in external gear (2-42) chamber (2-42-3), planet pinion (2-43) not only with the internal tooth engagement of external gear (2-42) and but also mesh with the pinion (2-32) of the contrary wheel of the duplex system that is positioned at external gear (2-42) chamber (2-42-3), the axle (244) of planet pinion (2-43) is fixed between the base plate (2-41-1) of pinion frame (2-45) and planetary output gear (2-41).