CN201461846U

CN201461846U - Electric vehicle coupler

Info

Publication number: CN201461846U
Application number: CN2009201283695U
Authority: CN
Inventors: 夏先明; 许南绍
Original assignee: Lifan Industry Group Co Ltd
Current assignee: Lifan Technology Group Co Ltd
Priority date: 2009-08-07
Filing date: 2009-08-07
Publication date: 2010-05-12
Anticipated expiration: 2019-08-07

Abstract

Disclosed is an electric vehicle coupler. A pressure plate is sleeved on a first ring-shaped boss of a drive plate; the pressure plate, the drive plate and a driven plate are mutually connected through rivets evenly distributed on the circumference of the plates; the drive plate can rotate at an angle a relative to the driven plate and the pressure plate; first positioning holes evenly distributed according to circumference are disposed on the plate body of the drive plate; second positioning holes having the same quantity with and corresponding positions to the first positioning holes are arranged on the plate body of the driven plate; third positioning holes having the same quantity with and corresponding positions to the first positioning holes are arranged on the plate body of the pressure plate; the first positioning holes, the second positioning holes and the third positioning holes at the same corresponding positions form a containing chamber; and a shock absorber is installed inside the containing chamber. The electric vehicle coupler can effectively absorb shock energy caused by a motor and a speed changer in work, reduce shock caused in the work conditions of starting, braking, abrupt acceleration, abrupt deceleration and the like of an electric vehicle, and avoid part damage caused by impact.

Description

The used for electric vehicle coupling

Technical field

The utility model relates to a kind of bindiny mechanism of Motor Vehicle transmission of power, specifically, relates in particular to the coupling that is used on the electric vehicle.

Background technique

At present, new-energy automobile is becoming the exploitation of exploitation focus, particularly electric vehicle, has become the emphasis of new-energy automobile exploitation.Electric vehicle adopts motor as driving power assembly, and drive motor is connected with speed changer, if adopt simple rigid coupling, when operating modes such as vehicle launch, braking, anxious acceleration, anxious deceleration, easily produces vibrations, influences the performance of vehicle.The coupling that therefore, need a kind of damping performance excellence between motor and speed changer, can effectively improve impact comes transmitting movement and torque.The tradition coupling is because the self structure restriction is difficult to reach usage requirement, and coupling self can't absorb the vibration energy that produces when working between motor and the speed changer, and the effect of improving vibrations is limited.

The model utility content

Technical problem to be solved in the utility model is to provide a kind of used for electric vehicle coupling, so that effectively absorb the vibration energy that produces when working between motor and the speed changer.

The technical solution of the utility model is as follows: a kind of used for electric vehicle coupling, comprise driving disc, driven disc, platen, rivet and vibration damper, the card of described driving disc and the card of driven disc fit, both shaft axiss point-blank, be provided with first annular boss at the middle part of driving disc, the middle part of driven disc is provided with second annular boss, and first annular boss and second annular boss are in the opposite direction, first, the endoporus of second annular boss is splined hole, suit platen on described first annular boss, described platen, connect by equally distributed rivet on the circumference between driving disc and the driven disc three, driving disc is driven disc and platen rotation angle a relatively, and-12 °≤a≤+ 12 °; On the disk body of described driving disc, offer by equally distributed first positioning hole of circumference, offer second positioning hole identical with the first positioning hole number, that the position is relative on the disk body of driven disc, also offer the 3rd positioning hole identical with the first positioning hole number, that the position is relative on the disk body of platen, first positioning hole of described same corresponding position, second positioning hole and the 3rd positioning hole are formed containing space, in this containing space vibration damper are housed.

Adopt above technological scheme, driving disc is sleeved on the output shaft of drive motor by inner splined hole, driven disc is sleeved on the input shaft of speed changer by inner splined hole, link together by the utility model between drive motor and the speed changer, when motor operation, the output shaft of motor drives driving disc and rotates synchronously, because relative driven disc of driving disc energy and platen relatively rotate several angle, driving disc is oppressed vibration damper like this, the damper force driven disc is rotated, give speed changer with transmission of power, the impulsive load of driving disc quick rotation is absorbed by vibration damper, slow down impact thus well, reduced the electric vehicle starting, braking, the anxious acceleration, vibrations during operating modes such as anxious deceleration have been avoided causing damage of components because of impact.

Manufacturing for convenience, the hole of passing through for rivet on the above-mentioned driving disc is an arc slot, the hole of passing through for rivet on driven disc and the platen is circular hole.

Be set with spacer on above-mentioned rivet, this spacer is arranged in the arc slot on the driving disc.Spacer is guaranteeing that driving disc rotates flexibly simultaneously relative to driven disc and platen, can effectively avoid driving disc to take place radially to rock, to ensure the reliability of transmission.

Offer five by equally distributed rectangle first positioning hole of circumference on the disk body of above-mentioned driving disc, the place, four angles of this first positioning hole offers small sircle hole, and this small sircle hole is communicated with first positioning hole.First positioning hole is a rectangle, helps processing and assembling vibration damper; The small sircle hole at place, four angles of first positioning hole can make things convenient for vibration damper to install on the one hand, avoids interfering with vibration damper, can also improve the phenomenon that stress is concentrated on the other hand.

Above-mentioned second positioning hole and the 3rd positioning hole also are rectangle, and wherein two of second positioning hole long limits form " eight " font first limited wall towards the direction outward flanging opposite with driving disc; Two long limits of described the 3rd positioning hole form " eight " font second limited wall also towards the direction outward flanging opposite with driving disc.Second positioning hole and the 3rd positioning hole are rectangle, help processing and flange; First limited wall and second limited wall are spacing to the side of vibration damper, guarantee that vibration damper only upwards works in week.

Above-mentioned vibration damper is made of oil cylinder, outer spring, first piston, second piston, inner spring and end cap, wherein first piston is a tubular structure, the open-mouth end of this first piston is sealed by end cap, the closed end of first piston stretches in the oil cylinder, and offers throttling pore on the closed end of first piston; Described second piston and inner spring are installed in the first piston, one end of inner spring is spacing by second piston, and the other end is spacing by end cap, suit outer spring on described oil cylinder and first piston, one end of this outer spring is spacing by the outer rim of oil cylinder closed end, and the other end is spacing by end cap.

In the above structure, when under the drive of driving disc at motor output shaft when driven disc and platen rotate, end cap and cylinder body suffer oppression, make the outer spring compression, first piston is to the closed end motion of oil cylinder, and in-oil cylinder fluid is subjected to the compressing of first piston, in the throttling pore inflow first piston by the first piston closed end, fluid promotes second piston to the motion of end cap direction, the inner spring compression.Because fluid enters in cylinder the process of first piston, fluid can absorb energy during by throttling pore, converts mechanical energy to heat energy, thereby can absorb the impulsive load of driving disc quick rotation, reaches damping effect well.When driving disc after driven disc rotates, the pressure that acts on end cap and the cylinder body disappears, outer spring resets, outer spring promotes end cap and cylinder body, make first piston to direction motion away from the oil cylinder closed end, this moment, inner spring resetted, and promoted the direction motion of second piston to the oil cylinder closed end, and the fluid in the first piston is pushed back in the oil cylinder.In like manner, when electric vehicle was braked, the impact that driven disc transmits at first was delivered on the vibration damper, and the inside and outside length of spring compressed of vibration damper is delivered to power on the driving disc after slowing down impact again.

For simplified structure, convenient for assembly, the middle part of above-mentioned end cap has annular boss, and this annular boss stretches in the first piston, and is threaded with first piston.

For the ease of to the inner spring location, guarantee the reliability of inner spring work, above-mentioned second piston is a tubular structure, an end of described inner spring stretches into from the open-mouth end of second piston, in the annular boss that the other end inserting end of inner spring covers.

Beneficial effect: the utility model can effectively absorb the vibration energy that produces when working between motor and the speed changer, vibrations when having reduced operating modes such as electric vehicle starting, braking, anxious acceleration, anxious deceleration, avoided because of impact causes damage of components, have be skillfully constructed, characteristics such as simple and reliable for structure, damping performance excellence.

Description of drawings

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

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1.

Fig. 4 is the structural representation of driving disc in the utility model.

Fig. 5 is the side view of Fig. 4.

Fig. 6 is the structural representation of driven disc in the utility model.

Fig. 7 is the side view of Fig. 6.

Fig. 8 is the structural representation of platen in the utility model.

Fig. 9 is the side view of Fig. 8.

Embodiment

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

As Fig. 1, Fig. 4, shown in Figure 5, the utility model is made of driving disc 1, driven disc 2, platen 3, rivet 4, vibration damper 8 and spacer 9 etc., wherein driving disc 1 is a disc structure, middle part at driving disc 1 offers via hole, this via hole wherein outside of a side is formed with the first annular boss 1a, and the endoporus of the first annular boss 1a is a splined hole.Offer five by the equally distributed arc slot 1b of circumference on the disk body of described driving disc 1, the center of circle of each arc slot 1b place circumference is on the shaft axis of driving disc 1.On the disk body of driving disc 1, also offer five by equally distributed first positioning hole 5 of circumference, first positioning hole 5 is a rectangle, 1b arranges at interval with arc slot, and place, four angles of first positioning hole 5 offers small sircle hole 10, and this small sircle hole 10 is communicated with first positioning hole 5.

As Fig. 1, Fig. 6, shown in Figure 7, driven disc 2 also is a disc structure, and diameter equates with driving disc 1.Be provided with the second annular boss 2a at the middle part of driven disc 2, the endoporus of this second annular boss 2a is a splined hole.Offer five by the equally distributed circular hole 2b of circumference on the disk body of described driven disc 2, the position of each circular hole 2b is corresponding with the arc slot 1b on the driving disc 1.On the disk body of driven disc 2, also offer five by equally distributed second positioning hole 6 of circumference, second positioning hole 6 is a rectangle, 2b arranges at interval with circular hole, the position of each second positioning hole 6 is corresponding with first positioning hole 5 on the driving disc 1, and two long limit outward flangings of second positioning hole 6, form " eight " font first limited wall 6a, the flange direction of the first limited wall 6a is identical with the second annular boss 2a.

As Fig. 1, Fig. 8, shown in Figure 9, platen 3 also is a disc structure, and diameter equates with driving disc 1.Offer circular mounting hole 3a at the middle part of platen 3, the periphery of this mounting hole 3a is evenly distributed with five circular hole 3b and five rectangle the 3rd positioning holes 7 by circumference.The position of described circular hole 3b is corresponding with the arc slot 1b on the driving disc 1, the 3rd positioning hole 7 is arranged at interval with circular hole 3b, the position of each the 3rd positioning hole 7 is corresponding with first positioning hole 5 on the driving disc 1, and two long limit outward flangings of the 3rd positioning hole 7 form " eight " font second limited wall 7a.

From Fig. 1, Fig. 2 and in conjunction with Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, shown in Figure 9, the card of the card of driving disc 1 and driven disc 2 fits, both shaft axiss are on same straight line, and the first annular boss 1a and the second annular boss 2a are respectively in the opposite direction.Platen 3 is sleeved on the root of the first annular boss 1a on the driving disc 1, this platen 3 is fitted with the outer card of driving disc 1, circular hole 3b on the platen 3 is corresponding with arc slot 1b and the circular hole 2b on the driven disc 2 on the driving disc 1, five are passed corresponding circular hole 2b, arc slot 1b and circular hole 3b by the equally distributed rivet 4 of circumference, and driven disc 2, driving disc 1 and platen 3 are linked together.All be set with spacer 9 on each rivet 4, this spacer 9 is arranged in the arc slot 1b on the driving disc 1, and spacer 9 is together with the middle part of rivet 4 at arc slot 1b when initial.Under the effect of arc slot 1b, driving disc 1 is driven disc 2 and platen 3 positive and negative rotation angle a relatively, and-12 °≤a≤+ 12 °.The concrete size of described a requires to decide according to reality, can regulate by the length that changes arc slot 1b.

From Fig. 1, Fig. 2 and shown in Figure 3, the flange direction of the first limited wall 6a is opposite with driving disc 1 on the driven disc 2, the flange direction of the second limited wall 7a is also opposite with driving disc 1 on the platen 3. first positioning hole 5 of described same corresponding position, second positioning hole 6 and the 3rd positioning hole 7 are formed containing space, vibration damper 8 is housed in this containing space, this vibration damper 8 distributes by the direction on first positioning hole, 5 long limits, the side of vibration damper 8 is spacing by the first limited wall 6a and the second limited wall 7a. and described vibration damper 8 is by oil cylinder 11, outer spring 12, first piston 13, second piston 14, inner spring 15 and end cap 16 constitute, wherein oil cylinder 11 is the uncovered tubular structure of the end sealing the other end, the outer of these oil cylinder 11 closed ends stretches out, forming disk body. described first piston 13 is a tubular structure, the closed end of this first piston 13 stretches in the oil cylinder 11, and be set on the annular boss at end cap 16 middle parts at the open-mouth end that offers the described first piston 13 of throttling pore 13a. on the closed end of first piston 13, both screw-thread fit, end cap 16 is with the open-mouth end sealing of first piston 13. and described end cap 16 is spacing by a minor face of first positioning hole 5, the closed end of oil cylinder 11 is spacing by another minor face of first positioning hole 5. suit outer spring 12 on oil cylinder 11 and first piston 13, one end of this outer spring 12 is spacing by the disk body of oil cylinder 11 closed end outer rims, the other end is spacing by end cap 16. and described second piston 14 and inner spring 15 are installed in the first piston 13, second piston 14 is a tubular structure, uncovered towards end cap 16, one end of inner spring 15 stretches into from the open-mouth end of second piston 14, tube lowest limit position by second piston 14, the other end of inner spring 15 stretches in the annular boss on the end cap 16, and is spacing by end cap 16.

In the utility model, driving disc 1 is sleeved on the output shaft of drive motor by inner splined hole, driven disc 2 is sleeved on the input shaft of speed changer by inner splined hole, when motor operation, the output shaft of motor drives driving disc 1 and rotates synchronously, because relative driven disc 2 of driving disc 1 energy and platen 3 relatively rotate several angle, end cap 16 and cylinder body 11 suffer oppression like this, make outer spring 12 compressions, first piston 13 is to the closed end motion of oil cylinder 11, fluid in the oil cylinder 11 is subjected to the compressing of first piston 13, throttling pore 13a by first piston 13 closed ends flows in the first piston 13, fluid promotes second piston 14 to the motion of end cap 16 directions, inner spring 15 compressions.Because fluid enters in cylinder 11 process of first piston 13, fluid can absorb energy during by throttling pore 13a, converts mechanical energy to heat energy, thereby can absorb the impulsive load of driving disc 1 quick rotation, reaches damping effect well.When driving disc 1 after driven disc 2 rotates, the pressure that acts on end cap 16 and the cylinder body 11 disappears, outer spring 12 resets, outer spring 12 promotes end cap 16 and cylinder body 11, make first piston 13 to direction motion away from oil cylinder 11 closed ends, this moment, inner spring 15 resetted, and promoted the direction motion of second piston 14 to oil cylinder 11 closed ends, and the fluid in the first piston 13 is pushed back in the oil cylinder.In like manner, when electric vehicle was braked, the impact that driven disc 2 transmits at first was delivered on end cap 16 and the cylinder body 11, made 15,12 compressions of inside and outside spring, power was delivered on the driving disc 1 after slowing down impact again.

Claims

1. used for electric vehicle coupling, comprise driving disc (1) and driven disc (2), the card of the card of described driving disc (1) and driven disc (2) fits, both shaft axiss point-blank, be provided with first annular boss (1a) at the middle part of driving disc (1), the middle part of driven disc (2) is provided with second annular boss (2a), and first annular boss (1a) and second annular boss (2a) are in the opposite direction, first, second annular boss (the 1a, endoporus 2a) is splined hole, it is characterized in that: go up suit platen (3) at described first annular boss (1a), described platen (3), connect by equally distributed rivet (4) on the circumference between driving disc (1) and driven disc (2) three, driving disc (1) is driven disc (2) and platen (3) rotation angle a relatively, and-12 °≤a≤+ 12 °; On the disk body of described driving disc (1), offer by equally distributed first positioning hole of circumference (5), offer second positioning hole (6) identical with first positioning hole (5) number, that the position is relative on the disk body of driven disc (2), also offer the 3rd positioning hole (7) identical with first positioning hole (5) number, that the position is relative on the disk body of platen (3), first positioning hole (5) of described same corresponding position, second positioning hole (6) and the 3rd positioning hole (7) are formed containing space, and vibration damper (8) is housed in this containing space.

2. used for electric vehicle coupling according to claim 1 is characterized in that: it is arc slot (1b) that described driving disc (1) is gone up the hole of passing through for rivet (4), and driven disc (2) and platen (3) are gone up the hole of passing through for rivet (4) and be circular hole.

3. used for electric vehicle coupling according to claim 2 is characterized in that: be set with spacer (9) on described rivet (4), this spacer (9) is arranged in the arc slot (1b) on the driving disc (1).

4. used for electric vehicle coupling according to claim 1, it is characterized in that: on the disk body of described driving disc (1), offer five by equally distributed rectangle first positioning hole of circumference (5), the place, four angles of this first positioning hole (5) offers small sircle hole (10), and this small sircle hole (10) is communicated with first positioning hole (5).

5. used for electric vehicle coupling according to claim 4, it is characterized in that: described second positioning hole (6) and the 3rd positioning hole (7) also are rectangle, wherein two long limits of second positioning hole (6) form " eight " font first limited wall (6a) towards the direction outward flanging opposite with driving disc (1); Two long limits of described the 3rd positioning hole (7) form " eight " font second limited wall (7a) also towards the direction outward flanging opposite with driving disc (1).

6. used for electric vehicle coupling according to claim 1 or 5, it is characterized in that: described vibration damper (8) is made of oil cylinder (11), outer spring (12), first piston (13), second piston (14), inner spring (15) and end cap (16), wherein first piston (13) is a tubular structure, the open-mouth end of this first piston (13) is sealed by end cap (16), the closed end of first piston (13) stretches in the oil cylinder (11), and offers throttling pore (13a) on the closed end of first piston (13); Described second piston (14) and inner spring (15) are installed in the first piston (13), one end of inner spring (15) is spacing by second piston (14), the other end is spacing by end cap (16), go up suit outer spring (12) at described oil cylinder (11) and first piston (13), one end of this outer spring (12) is spacing by the outer rim of oil cylinder (11) closed end, and the other end is spacing by end cap (16).

7. used for electric vehicle coupling according to claim 6 is characterized in that: the middle part of described end cap (16) has annular boss, and this annular boss stretches in the first piston (13), and is threaded with first piston (13).

8. used for electric vehicle coupling according to claim 7, it is characterized in that: described second piston (14) is a tubular structure, one end of described inner spring (15) stretches into from the open-mouth end of second piston (14), and the other end of inner spring (15) stretches in the annular boss on the end cap (16).