CN218140892U - Drive axle and all-terrain vehicle - Google Patents
Drive axle and all-terrain vehicle Download PDFInfo
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- CN218140892U CN218140892U CN202221677167.8U CN202221677167U CN218140892U CN 218140892 U CN218140892 U CN 218140892U CN 202221677167 U CN202221677167 U CN 202221677167U CN 218140892 U CN218140892 U CN 218140892U
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- output gear
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Abstract
The application relates to the technical field of vehicles, in particular to a drive axle and an all-terrain vehicle. This kind of transaxle includes: the differential mechanism comprises a first output gear and a second output gear which are oppositely arranged, when the differential mechanism is in a locked state, the friction force between the first output gear and the second output gear is F1, when the differential mechanism is in a free state, the friction force between the first output gear and the second output gear is F2, and F1 is larger than F2; the locking mechanism comprises a magnetic piece and a locking assembly; the electromagnetic coil can lock the differential mechanism when attracting the magnetic piece, so that the differential mechanism is in a locked state; the shell is provided with a mounting cavity, and the differential mechanism, the locking mechanism and the electromagnetic coil are all mounted in the mounting cavity. So set up, through regard as the power supply of drive locking mechanism locking differential mechanism with solenoid, the arrangement of the inside mechanism of transaxle of being convenient for is favorable to the lightweight design of all terrain vehicle.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to a drive axle and an all-terrain vehicle.
Background
When the all-terrain vehicle is in turning, the driving distances of the wheels at the inner side and the outer side are different at the same time, so that the wheels at the inner side and the outer side have rotating speed difference. However, when the all-terrain vehicle is in bad road conditions, especially the all-terrain vehicle usually runs on a muddy, wet and other bad road surface, which seriously affects its traffic capacity, for example, when one wheel is deep in mud or suspended, although the other wheel is in a good road surface, the other wheel cannot advance due to skidding, because the wheel in mud has small adhesion to the ground, the wheel idles, and the wheel with adhesion to the ground cannot obtain driving force due to the action of the differential mechanism, therefore, a locking mechanism needs to lock the gear in the differential mechanism to make the differential mechanism lose the differential function, transmit torque to the non-skidding wheel, further make the all-terrain vehicle obtain power, and enhance the ability to escape from the ground.
Differentials with locking function typically have an outer case to isolate the internal mechanisms of the differential from the outside. In a differential with a locking function in the prior art, a motor and a speed reducer are generally used as power sources to drive a locking mechanism to lock gears in the differential; however, because the motor and the speed reducer are both large in size and weight, it is difficult to completely seal the motor and the speed reducer in the housing, and the differential occupies a large space and has a large weight, which is not convenient for the arrangement of peripheral components, and is not favorable for the light-weight design of the all-terrain vehicle.
SUMMERY OF THE UTILITY MODEL
The application provides a transaxle and all terrain vehicle, through regard as solenoid as the power supply of drive locking mechanism locking differential mechanism, the arrangement of the inside mechanism of transaxle of being convenient for is favorable to the lightweight design of all terrain vehicle.
The present application provides in a first aspect a drive axle, comprising:
the differential mechanism comprises a first output gear and a second output gear which are oppositely arranged, when the differential mechanism is in a locked state, the friction force between the first output gear and the second output gear is F1, when the differential mechanism is in a free state, the friction force between the first output gear and the second output gear is F2, and F1 is larger than F2;
the locking mechanism comprises a magnetic piece and a locking assembly;
an electromagnetic coil capable of locking the differential mechanism to place the differential mechanism in a locked state when the electromagnetic coil attracts the magnetic member;
a housing having a mounting cavity, the differential mechanism, the locking mechanism and the electromagnetic coil all mounted within the mounting cavity.
In a possible design, the locking assembly includes a transmission member, a locking member, a first matching sleeve and a second matching sleeve, the locking member and the first matching sleeve are sequentially sleeved, the first matching sleeve is matched with the first output gear, the differential mechanism further includes a housing, and the second matching sleeve is matched with an outer wall of the housing;
when the electromagnetic coil attracts the magnetic piece, the transmission piece drives the locking piece to lock the first matching sleeve and the second matching sleeve, so that the differential mechanism is in a locking state.
In one possible embodiment, the housing comprises an end cap and a housing, the end cap being able to be fitted to the housing, the electromagnetic coil being connected to the side of the end cap facing the interior of the housing.
In one possible design, the projection of the magnetic element lies within the projection range of the electromagnetic coil in the axial direction of the axis of the electromagnetic coil.
In a possible design, the inner wall of the installation cavity is provided with a positioning piece, the positioning piece protrudes towards the inside of the installation cavity, and the electromagnetic coil and the magnetic piece are all sleeved on the positioning piece.
In one possible embodiment, the housing comprises an end cap and a housing, the end cap being able to be fitted to the housing, the electromagnetic coil being connected to the side of the end cap facing the interior of the housing.
In one possible design, the solenoid coil is bonded to an inner wall of the mounting cavity.
In one possible design, the electromagnetic coil is encapsulated in the inner wall of the installation cavity through pouring sealant.
In one possible design, the inner wall of the mounting chamber is provided with a recess into which the electromagnetic coil can be inserted.
A second aspect of the application provides an all-terrain vehicle comprising:
a drive axle as described above;
a wheel connected with the drive axle;
the engine drives the wheels to rotate through the drive axle.
The beneficial effect of this application is:
the application provides a transaxle and have this kind of transaxle's all terrain vehicle through regarding solenoid as the power supply to drive locking mechanism and lock the gear in the differential mechanism, because solenoid's volume is less, save space, and then be convenient for install solenoid in the installation cavity of shell, the peripheral part's of being convenient for simultaneously arrangement, solenoid's weight is lighter in addition, is favorable to all terrain vehicle's lightweight design.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
FIG. 1 is an exploded view of a portion of a drive axle in one embodiment provided herein;
FIG. 2 is a schematic illustration of a portion of a drive axle in one embodiment provided herein;
FIG. 3 is a cross-sectional view of a portion of the structure of FIG. 2;
fig. 4 is a schematic structural view of the end cap in fig. 1.
Reference numerals:
1-a differential mechanism;
11-a first output gear;
12-a containment shell;
13-a planetary gear;
2-a locking mechanism;
21-a magnetic member;
211-a first ramp raceway;
22-a locking assembly;
221-a transmission piece;
221 a-balls;
221 b-a pressing part;
222-a lock;
223-a first mating sleeve;
224-a second mating sleeve;
3-an electromagnetic coil;
4-a housing;
41-a positioning piece;
42-end cap;
5-a drive bevel gear;
6-driven bevel gear;
7-driving shaft;
8-wave spring.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
Embodiments of the present application provide an all-terrain vehicle, which may be in particular a truck, all-terrain vehicle, off-road vehicle, etc., comprising an engine, a transmission system, a driving and control system, a vehicle body, electrical equipment. The engine is the power plant of an all-terrain vehicle. The transmission system is used for transmitting power output by the engine to wheels and comprises a transmission shaft, a drive axle and the like. The running and controlling system is used for connecting all the assemblies and parts of the all-terrain vehicle into a whole, supporting the whole vehicle and ensuring the all-terrain vehicle to run normally, and comprises parts such as a brake, a steering gear, a suspension, wheels and the like. The vehicle body is a device for forming a seating space and also a device for storing luggage. The electrical equipment consists of a power supply, an engine ignition system, a starting system and the like.
The transaxle functions to increase torque transmitted from a propeller shaft or a transmission and to transmit power output from an engine to left and right wheels. As shown in fig. 1, the transaxle provided by the embodiment of the present application includes a differential mechanism 1, a locking mechanism 2, an electromagnetic coil 3, and a housing 4, where the differential mechanism 1 includes a first output gear 11 and a second output gear that are disposed opposite to each other, when the differential mechanism 1 is in a locked state, friction between the first output gear 11 and the second output gear is increased, that is, a speed difference between the first output gear 11 and the second output gear is small, and when the differential mechanism 1 is in a free state, friction between the first output gear 11 and the second output gear is reduced, relative to when the differential mechanism 1 is in a locked state, the first output gear 11 is able to rotate relative to the second output gear, that is, a larger speed difference may exist between the first output gear 11 and the second output gear; the locking mechanism 2 comprises a magnetic piece 21 and a locking assembly 22; when the electromagnetic coil 3 attracts the magnetic member 21, the locking assembly 22 is able to lock the differential mechanism 1 so that the differential mechanism 1 is in a locked state; the housing 4 has a mounting cavity, and the differential mechanism 1, the locking mechanism 2 and the electromagnetic coil 3 are all mounted in the mounting cavity.
As shown in fig. 1-2, the drive axle in the embodiment of the present application further includes a drive bevel gear 5, a driven bevel gear 6, and a drive shaft 7, wherein the drive bevel gear 5 is engaged with the driven bevel gear 6, an axis of the drive bevel gear 5 is perpendicular to an axis of the driven bevel gear 6, and a reference circle diameter of the drive bevel gear 5 is smaller than a reference circle diameter of the driven bevel gear 6, so that a transmission mechanism formed by the drive bevel gear 5 and the driven bevel gear 6 is a speed reduction mechanism; the driven bevel gear 6 is connected with the differential mechanism 1, so that the driven bevel gear 6 can drive the differential mechanism 1 to rotate around the axis of the driven bevel gear 6; one end of the driving shaft 7 is connected with the driving bevel gear 5, and the other end is connected with the engine; the first output gear 11 is connected with the left wheel through a connecting shaft; the second output gear is connected with the right wheel through another connecting shaft.
When the engine is in a working state, the engine transmits power to the driving bevel gear 5 through the driving shaft 7, the driving bevel gear 5 drives the driven bevel gear 6 to rotate, and the driven bevel gear 6 drives the differential mechanism 1 to rotate, so that the first output gear 11 and the second output gear rotate, and the left wheel and the right wheel rotate.
In the running process of the all-terrain vehicle, when the differential mechanism 1 is in a free state, the first output gear 11 can rotate relative to the second output gear, so that the left wheel and the right wheel can generate a rotation speed difference, and the all-terrain vehicle can smoothly turn; when the differential mechanism 1 is in a locked state, the first output gear 11 and the second output gear are kept relatively static or rotate relatively slowly, at this time, the first output gear 11 cannot rotate relative to the second output gear or the difference in rotation speed is small, so that the difficulty-removing capability of the all-terrain vehicle when the all-terrain vehicle runs on bad road conditions, such as the all-terrain vehicle runs on grassland, mud and marsh and other bad road conditions, when one wheel has a slipping phenomenon, the differential mechanism 1 needs to be locked to transmit power to the non-slipping wheel, and the all-terrain vehicle obtains power.
When the differential mechanism 1 is locked, the electromagnetic coil 3 is electrified, the electromagnetic coil 3 attracts the magnetic piece 21, and at the moment, the locking assembly 22 locks the differential mechanism 1, so that the first output gear 11 and the second output gear are kept relatively static; when the differential mechanism 1 needs to recover the differential function, the electromagnetic coil 3 is powered off, the attraction force of the electromagnetic coil 3 disappears, and the magnetic member 21 is reset, so that the locking assembly 22 releases the locking effect on the differential mechanism 1, and the first output gear 11 can rotate relative to the second output gear.
Specifically, the electromagnetic coil 3 may be connected to an external power source through a wire. The magnetic material 21 may be iron, nickel, cobalt, or the like.
The drive axle in the embodiment of the application further comprises a shell 4, the shell 4 is provided with a mounting cavity, the differential mechanism 1, the locking mechanism 2 and the electromagnetic coil 3 are all mounted in the mounting cavity of the shell 4, on one hand, the differential mechanism 1, the locking mechanism 2 and the electromagnetic coil 3 are supported, sealed and positioned, on the other hand, the differential mechanism 1, the locking mechanism 2 and the electromagnetic coil 3 are separated from the outside, the differential mechanism 1, the locking mechanism 2 and the electromagnetic coil 3 are prevented from colliding with an external object and being damaged due to extrusion and the like, and the service lives of the differential mechanism 1, the locking mechanism 2 and the electromagnetic coil 3 can be prolonged.
In the embodiment of the application, the electromagnetic coil 3 is used as a power source to drive the locking mechanism 2 to lock the gear in the differential mechanism 1, the electromagnetic coil 3 is small in size, space is saved, the electromagnetic coil 3 is convenient to mount in a mounting cavity of the shell 4, meanwhile, peripheral parts are convenient to arrange, and the electromagnetic coil 3 is light in weight and beneficial to lightweight design of all-terrain vehicles.
The driving bevel gear 5 and the driven bevel gear 6 may also be mounted in a mounting cavity of the housing 4, so as to prevent the driving bevel gear 5 and the driven bevel gear 6 from colliding with and extruding with external objects to cause damage.
Specifically, the drive axle in the embodiment of the present application further includes a drive axle housing, and the differential mechanism 1, the locking mechanism 2, the electromagnetic coil 3, the housing 4, the drive bevel gear 5, the driven bevel gear 6, and the drive shaft 7 are all located in the drive axle housing, and on one hand, play roles of supporting, sealing, positioning, and the like for the internal components of the drive axle, and on the other hand, separate the internal components of the drive axle from the outside world, and play a role of protection.
Specifically, as shown in fig. 1-2, the differential mechanism 1 further includes a housing 12 and a planetary gear 13, an axis of the first output gear 11 is parallel to an axis of the second output gear, an axis of the planetary gear 13 is perpendicular to an axis of the first output gear 11, the planetary gear 13 is rotatably connected to the housing 12, the first output gear 11 and the second output gear are both engaged with the planetary gear 13, the housing 12 has a housing cavity, and the first output gear 11 and the planetary gear 13 are both located in the housing cavity, so as to prevent the first output gear 11 and the planetary gear 13 from being damaged by colliding, extruding and the like of an external object; one end of the accommodating case 12 is fixedly connected to the driven bevel gear 6, so that the driven bevel gear 6 can drive the accommodating case 12 to rotate around the axis of the driven bevel gear 6.
In the running process of the all-terrain vehicle, when the rotating speeds of the left wheel and the right wheel are consistent, for example, the all-terrain vehicle runs on a straight road surface, the engine transmits power to the drive bevel gear 5 through the drive shaft 7, so that the drive bevel gear 5 rotates, the driven bevel gear 6 drives the accommodating shell 12 to rotate around the axis of the driven bevel gear 6, at the moment, the planetary gear 13 does not rotate, the planetary gear 13 only rotates around the axis of the driven bevel gear 6 along with the accommodating shell 12, the rotating speeds of the first output gear 11 and the second output gear are the same, and further the rotating speeds of the left wheel and the right wheel are the same; when the rotating speeds of the left wheel and the right wheel are not consistent, for example, when the all-terrain vehicle is in turning, the planetary gear 13 rotates and rotates along with the accommodating shell 12 around the axis of the driven bevel gear 6, so that the first output gear 11 and the second output gear generate a rotating speed difference, further the left wheel and the right wheel generate a rotating speed difference, and the all-terrain vehicle can be ensured to turn smoothly.
As shown in fig. 1, the locking assembly 22 includes a transmission member 221, a locking member 222, a first matching sleeve 223 and a second matching sleeve 224, the electromagnetic coil 3 is located on the side of the magnetic member 21 away from the transmission member 221, the second matching sleeve 224, the locking member 222 and the first matching sleeve 223 are sequentially sleeved, the first matching sleeve 223 is matched with the first output gear 11, and the second matching sleeve 224 is matched with the outer wall of the accommodating shell 12; when the electromagnetic coil 3 attracts the magnetic member 21, the transmission member 221 drives the locking member 222 to lock the first and second engaging sleeves 223 and 224, so that the differential mechanism 1 is in the locked state.
The first matching sleeve 223 may be provided with a first internal spline, the first output gear 11 may be provided with a first external spline, and the first matching sleeve 223 and the first output gear 11 are matched through the first internal spline and the first external spline, so that the first matching sleeve 223 and the first output gear 11 can rotate synchronously; the second matching sleeve 224 may be provided with a second internal spline, the outer wall of the accommodating shell 12 may be provided with a second external spline, and the second matching sleeve 224 and the outer wall of the accommodating shell 12 are matched with the second external spline through the second internal spline, so that the two can rotate synchronously. In other embodiments, the first matching sleeve 223 may also be sleeved on the connecting rod of the first output gear 11, so that the two are in an interference fit state, and further the two can rotate synchronously; the second fitting sleeve 224 can be sleeved on the outer wall of the accommodating shell 12 to enable the two to be in an interference fit state, so that the two can rotate synchronously.
Specifically, the lock member 222 includes a first friction plate having internal teeth but not having external teeth, and a second friction plate having external teeth but not having internal teeth, the axis of the first friction plate coincides with the axis of the second friction plate, and the first friction plate and the second friction plate are alternately arranged in the axial direction of the first friction plate, that is, a friction plate assembly composed of the first friction plate and the second friction plate is formed as the lock member 222. The internal teeth of the first friction plate are engaged with the external teeth of the first fitting sleeve 223 so that the first friction plate can rotate synchronously with the first fitting sleeve 223; the second matching sleeve 224 is provided with a placing cavity, a groove matched with the shape of the outer teeth of the second friction plate is formed in the inner wall of the placing cavity, the second friction plate is placed in the placing cavity, the outer teeth of the second friction plate can stretch into the groove, so that the second friction plate and the second matching sleeve 224 can synchronously rotate around the axis of the second matching sleeve 224, and the outer teeth of the second friction plate are in clearance fit with the groove.
The first friction plate, the second friction plate, and the first fitting sleeve 223 are all located in the placing cavity of the second fitting sleeve 224. Also, the number of the first friction plates may be two, three or more, and the number of the second friction plates may be two, three or more.
When the differential mechanism 1 is in a free state, a gap is formed between the first friction plate and the second friction plate, and the first engaging sleeve 223 and the second engaging sleeve 224 do not interfere with each other, so that the first engaging sleeve 223 and the second engaging sleeve 224 can generate relative rotation, and at this time, the first output gear 11 and the second output gear can generate relative rotation.
As shown in fig. 1 to 3, the transmission member 221 includes a ball 221a and a pressing portion 221b, an axis of the pressing portion 221b coincides with an axis of the first friction plate, the magnetic member 21 is provided with a first slope raceway 211, the first slope raceway 211 is arranged along a circumferential direction of the magnetic member 21, and the first slope raceway 211 is recessed along an axial direction of the magnetic member 21; along the circumferential direction of the magnetic member 21, the depth of the recess of the first slope raceway 211 is from small to large; the pressing part 221b is coaxial and opposite to the magnetic part 21, one side of the pressing part 221b, which faces the magnetic part 21, is provided with a second slope raceway, the second slope raceway is arranged along the circumferential direction of the pressing part 221b, and the second slope raceway is matched with the first slope raceway 211 in shape; the balls 221a are located between the first ramp raceway 211 and the second ramp raceway.
The drive axle in the embodiment of the application further comprises a wave spring 8, one end of the wave spring 8 is abutted to the magnetic part 21, the other end of the wave spring is abutted to the electromagnetic coil 3, and under the action of the elastic restoring force of the wave spring 8, the magnetic part 21 can be automatically reset.
Specifically, the specific operations of locking the differential mechanism 1 are: when the electromagnetic coil 3 is energized, the electromagnetic coil 3 generates an attractive force on the magnetic member 21, and further compresses the wave spring 8, so that the magnetic member 21 moves along the axial direction thereof and in a direction away from the pressing portion 221b, at this time, a rotation speed difference is generated between the magnetic member 21 and the pressing portion 221b, and further the ball 221a rolls from a deeper recessed position of the first ramp raceway 211 and the second ramp raceway to a shallower recessed position, so as to push the pressing portion 221b to move along the axial direction thereof and in a direction close to the first mating sleeve 223, until the pressing portion 221b presses the friction plate assembly, so that the first friction plate and the second friction plate are in a mutually pressed state, so that the first mating sleeve 223 and the second mating sleeve 224 are in a state in which the friction force therebetween is increased, and further the movement of the first output gear 11 relative to the accommodating shell 12 is limited, i.e. the first output gear 11 and the second output gear are in a relatively stationary state or a state in which the rotation speed difference is small, at this time, the mechanism 1 is in a locked state, and the friction force between the first output gear and the second output gear is a differential friction force provided by the locking assembly 22. When the differential mechanism is in the locked state, the frictional force between the first output gear and the second output gear is F1, and when the differential mechanism is in the free state, the frictional force between the first output gear and the second output gear is F2, and F1 is greater than F2.
When the locking of the differential mechanism 1 needs to be released, the electromagnetic coil 3 is powered off, the attraction force of the electromagnetic coil 3 to the magnetic member 21 disappears, and under the action of the elastic restoring force of the wave spring 8, the magnetic member 21 automatically resets, so that the magnetic member 21 and the abutting portion 221b rotate synchronously around the axis of the magnetic member 21, further the ball 221a rolls from the shallow recessed position of the first slope raceway 211 and the second slope raceway to the deep recessed position, so that the abutting portion 221b moves along the axial direction and the direction away from the first matching sleeve 223, the abutting of the friction plate assembly is released, the first friction plate and the second friction plate are separated, so that a gap is formed between the first friction plate and the second friction plate, further the first matching sleeve 223 and the second matching sleeve 224 can generate a rotation speed difference, namely the first output gear 11 can rotate relative to the second differential output gear, and at this time, the differential mechanism 1 returns to the free state.
The above is only a brief description of the specific structure and operation of the balls 221a and the ramp raceway 211, and a more detailed arrangement and operation thereof are well known to those skilled in the ramp ball actuator art.
In a specific embodiment, the axis of the electromagnetic coil 3 coincides with the axis of the magnetic member 21, which improves the stability when the electromagnetic coil 3 attracts the magnetic member 21 to move in the axial direction.
In a specific embodiment, along the axial direction of the axis of the electromagnetic coil, the projection of the magnetic member 21 is located within the projection range of the electromagnetic coil 3, which is beneficial to ensure that the magnetic flux passing through the magnetic member 21 meets the use requirement, i.e. the attraction force of the electromagnetic coil 3 to the magnetic member 21 meets the use requirement.
In an embodiment, as shown in fig. 3-4, a positioning member 41 is disposed on an inner wall of the mounting cavity, the positioning member 41 protrudes toward an inside of the mounting cavity, and both the electromagnetic coil 3 and the magnetic member 21 are sleeved on the positioning member 41, so as to facilitate positioning and mounting of the electromagnetic coil 3 and the magnetic member 21.
In one embodiment, the housing 4 includes an end cap 42 and a case, the end cap 42 can cover the case, and the electromagnetic coil 3 is connected to a side of the end cap 42 facing the inside of the case.
In this embodiment, the end cap 42 is detachably connected to the housing, so that the end cap 42 is convenient to be taken off from the housing, the electromagnetic coil 3 is convenient to be mounted on the end cap 42, and the maintenance, replacement and other operations of the electromagnetic coil 3 are convenient. Specifically, the end cap 42 may be bolted to the housing. The end cap forms an accommodating portion which is open toward the inside of the case, and the electromagnetic coil is mounted in the accommodating portion.
In a specific embodiment, the electromagnetic coil 3 is adhered to the inner wall of the mounting cavity, so that the operation is convenient, and the electromagnetic coil 3 is convenient to mount.
Specifically, solenoid 3 passes through the pouring sealant embedment in the inner wall of installation cavity for solenoid 3 and the inner wall firm in connection of installation cavity can form the protection to solenoid 3 moreover, play effects such as dampproofing and waterproofing, dustproof.
In a specific embodiment, the inner wall of the mounting cavity is provided with a recess (not shown in the figure), and the electromagnetic coil 3 can be embedded in the recess, so that the structure is simple and the operation is convenient.
In summary, in the all-terrain vehicle in the embodiment of the present application, the electromagnetic coil 3 is used as a power source in the drive axle of the all-terrain vehicle to drive the locking mechanism 2 to lock the gear in the differential mechanism 1, the electromagnetic coil 3 has a small volume, so that the space is saved, the electromagnetic coil 3 is convenient to install in the installation cavity of the housing 4, meanwhile, the arrangement of peripheral components is convenient, and the weight of the electromagnetic coil 3 is light, which is beneficial to the lightweight design of the all-terrain vehicle.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A drive axle, comprising:
a differential mechanism (1), wherein the differential mechanism (1) comprises a first output gear (11) and a second output gear which are oppositely arranged, when the differential mechanism (1) is in a locking state, the friction force between the first output gear (11) and the second output gear is F1, when the differential mechanism (1) is in a free state, the friction force between the first output gear (11) and the second output gear is F2, and F1 is larger than F2;
a locking mechanism (2), wherein the locking mechanism (2) comprises a magnetic piece (21) and a locking assembly (22);
characterized in that, the transaxle still includes: an electromagnetic coil (3), when the electromagnetic coil (3) attracts the magnetic member (21), the locking assembly (22) is capable of locking the differential mechanism (1) to place the differential mechanism (1) in a locked state;
the differential mechanism comprises a shell (4), wherein the shell (4) is provided with a mounting cavity, and the differential mechanism (1), the locking mechanism (2) and the electromagnetic coil (3) are mounted in the mounting cavity.
2. The drive axle according to claim 1, wherein the locking assembly (22) comprises a transmission member (221), a locking member (222), a first mating sleeve (223) and a second mating sleeve (224), the locking member (222) and the first mating sleeve (223) are sequentially sleeved, the first mating sleeve (223) is mated with the first output gear (11), the differential mechanism (1) further comprises a housing shell (12);
the second fitting sleeve (224) is fitted with the outer wall of the housing shell (12);
when the electromagnetic coil (3) attracts the magnetic member (21), the transmission member (221) drives the locking member (222) to lock the first mating sleeve (223) and the second mating sleeve (224), so that the differential mechanism (1) is in a locked state.
3. The drive axle according to claim 1, characterized in that the housing (4) comprises an end cap (42) and a housing, the end cap (42) being fittable to the housing, the electromagnetic coil (3) being connected to the side of the end cap (42) facing the interior of the housing.
4. Drive axle according to claim 1, characterized in that the projection of the magnetic element (21) lies within the projection range of the electromagnetic coil (3) in the axial direction of the axis of the electromagnetic coil (3).
5. The drive axle according to claim 1, wherein a positioning member (41) is disposed on an inner wall of the mounting cavity, the positioning member (41) protrudes toward an inside of the mounting cavity, and the electromagnetic coil (3) and the magnetic member (21) are both sleeved on the positioning member (41).
6. The drive axle according to claim 1, characterized in that the housing (4) comprises an end cap (42) and a housing, the end cap (42) being fittable to the housing, the electromagnetic coil (3) being connected to the side of the end cap (42) facing the interior of the housing.
7. Drive axle according to any of claims 1-6, characterized in that the magnet coil (3) is glued to the inner wall of the mounting cavity.
8. The drive axle according to claim 7, characterized in that the electromagnetic coil (3) is potted on the inner wall of the mounting cavity by potting compound.
9. The transaxle of any one of claims 1-6 wherein the interior wall of the mounting cavity is provided with a recess into which the electromagnetic coil (3) can be inserted.
10. An all-terrain vehicle, characterized in that it comprises:
a drive axle according to any one of claims 1 to 9;
a wheel connected with the drive axle;
the engine drives the wheels to rotate through the drive axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221677167.8U CN218140892U (en) | 2022-06-30 | 2022-06-30 | Drive axle and all-terrain vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221677167.8U CN218140892U (en) | 2022-06-30 | 2022-06-30 | Drive axle and all-terrain vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218140892U true CN218140892U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221677167.8U Active CN218140892U (en) | 2022-06-30 | 2022-06-30 | Drive axle and all-terrain vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218140892U (en) |
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2022
- 2022-06-30 CN CN202221677167.8U patent/CN218140892U/en active Active
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