CN212389740U - Electromagnetic type gear selecting and shifting actuating mechanism - Google Patents
Electromagnetic type gear selecting and shifting actuating mechanism Download PDFInfo
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- CN212389740U CN212389740U CN202020950144.4U CN202020950144U CN212389740U CN 212389740 U CN212389740 U CN 212389740U CN 202020950144 U CN202020950144 U CN 202020950144U CN 212389740 U CN212389740 U CN 212389740U
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Abstract
An electromagnetic gear selecting and shifting actuating mechanism comprises a shell, a gear selecting and shifting shaft penetrating through the shell, and a gear selecting sleeve sleeved on the gear selecting and shifting shaft, wherein a gear selecting and shifting finger is fixedly connected to the gear selecting sleeve, and the gear selecting and shifting finger can horizontally reciprocate along the axis of the gear selecting and shifting shaft under the driving of the gear selecting sleeve; the gear selecting and shifting shaft can rotate around the axis of the gear selecting and shifting shaft and drive the gear selecting and shifting sleeve to rotate; the outside of the shell also comprises a shifting electromagnet, the free end of the shifting electromagnet is connected with one end of the gear selecting and shifting shaft through a shifting connection unit, and the shifting connection unit can drive the gear selecting and shifting shaft to rotate around the axis of the gear selecting and shifting shaft under the telescopic motion of the free end of the shifting electromagnet. The gear selecting and shifting is completed by driving a gear shifting shaft by an electromagnet, the execution efficiency is high, the response is rapid, and the component connection is simple, stable and reliable.
Description
Technical Field
The utility model relates to a vehicle transmission field especially relates to an electromagnetic type selects actuating mechanism that shifts.
Background
The process of realizing speed change of the vehicle transmission is generally divided into a gear selecting process and a gear shifting process, and the transmission is divided into a plurality of grades of gears according to the operating condition of the vehicle, wherein the gears are usually low, medium and high, and reverse gears. When the gear selecting operation is carried out, the gear selecting executing mechanism controls the shifting fork to move to the gear of the corresponding grade, and the gear shifting executing mechanism controls the gear shifting shaft to rotate to drive the shifting fork to enter the corresponding gear to complete gear shifting. In the prior art, a common gear selecting and shifting executing structure adopts a motor or hydraulic control, the gear selecting and shifting is generally controlled by adopting the motor to realize the transmission of a worm gear lead screw, the cost is high, the displacement executed by the gear selecting and shifting is large, and the executing efficiency is low; the hydraulic control scheme makes the whole gear selecting and shifting actuating mechanism large in mass and volume, and the cost of the hydraulic control mechanism is very high.
Therefore, it is of great significance in the art to provide a gear selection and shift actuator with high actuation efficiency and relatively simple and reliable structure.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a technical scheme as follows: the utility model provides an electromagnetic type selects actuating mechanism that shifts, selects the gear shift axle including casing and running through the casing, its characterized in that: the gear selecting and shifting device further comprises a gear selecting sleeve sleeved on the gear selecting and shifting shaft, wherein a gear selecting and shifting finger is fixedly connected to the gear selecting sleeve and can horizontally reciprocate along the axis of the gear selecting and shifting shaft under the driving of the gear selecting sleeve; the gear selecting and shifting shaft can rotate around the axis of the gear selecting and shifting shaft and drive the gear selecting and shifting sleeve to rotate; the outside of the shell also comprises a shifting electromagnet, the free end of the shifting electromagnet is connected with one end of the gear selecting and shifting shaft through a shifting connection unit, and the shifting connection unit can drive the gear selecting and shifting shaft to rotate around the axis of the gear selecting and shifting shaft under the telescopic motion of the free end of the shifting electromagnet.
Furthermore, the gear shifting connection unit comprises a gear shifting connecting rod, one end of the gear shifting connecting rod is hinged with the free end of the gear shifting electromagnet, the other end of the gear shifting connecting rod is fixedly connected with the gear selecting and shifting shaft, and the gear selecting and shifting shaft is driven to rotate through the gear shifting connecting rod under the telescopic motion of the free end of the gear shifting electromagnet.
The gear selecting and shifting device further comprises a gear selecting electromagnet and a gear selecting and shifting connecting unit, wherein the gear selecting and shifting connecting unit is respectively connected with the gear selecting sleeve and the free end of the gear selecting electromagnet, and the gear selecting sleeve is driven by the gear selecting and shifting connecting unit to horizontally reciprocate along the axis of the gear selecting and shifting shaft under the telescopic motion of the free end of the gear selecting electromagnet.
Furthermore, the gear selecting connecting unit comprises a gear selecting finger and a gear selecting connecting rod assembly, one end of the gear selecting finger is movably connected with the gear selecting sleeve, the other end of the gear selecting finger is fixedly connected with the gear selecting connecting rod assembly, the gear selecting connecting rod assembly is at least provided with a fulcrum, one end of the gear selecting connecting rod assembly is hinged with the free end of the gear selecting electromagnet, and the gear selecting connecting rod assembly is driven to rotate around the fulcrum of the gear selecting connecting rod assembly and further drives the gear selecting finger to rotate under the telescopic motion of the free end of the gear selecting electromagnet; the gear selecting sleeve is provided with a limiting groove, the connecting end of the gear selecting finger and the gear selecting sleeve is clamped into the limiting groove, the contact surface of the gear selecting finger and the limiting groove is a cambered surface, and the gear selecting finger can drive the gear selecting sleeve to horizontally reciprocate along the axis of the gear selecting and shifting shaft under the guiding action of the limiting groove when rotating.
Furthermore, the shell also comprises a step-by-step gear selection limiting unit, the step-by-step gear selection limiting unit comprises n-step gear selection limiting assemblies, and adjacent two-step gear selection limiting assemblies are connected through a gear selection spring; the n-level gear selecting and limiting assemblies are sequentially arranged between the gear selecting sleeve and the bottom end of the shell, the first-level gear selecting and limiting assembly is connected with one end of the gear selecting sleeve through a first-level gear selecting spring, and the nth-level gear selecting and limiting assembly is connected with the bottom end of the shell through an nth-level gear selecting spring; the elastic coefficient of the n-level gear-selecting limit spring meets an expression Kn<Kn+1。
Furthermore, the n-level gear selection limiting assembly further comprises a contact part thetanThe nth gear selection limiting component moves to a contact part theta relative to the (n + 1) th gear selection limiting componentnThe displacement when the gear-selecting limiting component is contacted with the (n + 1) th-stage gear-selecting limiting component is smaller than the maximum compression stroke of the nth-stage gear-selecting spring; the gear selecting sleeve moves to a contact part theta relative to the I-level gear selecting limiting component1While in contact withThe displacement is smaller than the maximum compression stroke of the first-stage gear selecting spring; the nth-stage gear selection limiting assembly moves to a contact part theta relative to the bottom end of the shellnThe maximum displacement when contacting the bottom end of the shell is smaller than the maximum compression stroke of the nth-stage gear selecting spring.
Furthermore, n limiting blocks are fixedly arranged on the inner side of the shell to limit the nth-stage gear selection limiting assembly to move in the direction relative to the (n-1) th-stage gear selection limiting assembly, the nth-stage gear selection limiting assembly is in an initial state when contacting with the nth limiting block, and the nth-stage limiting spring is in a pre-compression state at the moment.
Furthermore, the step-by-step gear selection limiting unit comprises a step-III gear selection limiting component, and the step-I gear selection limiting component is the gear selection sleeve; the second-level gear selection limiting component and the third-level gear selection limiting component are both bowl-shaped components with central concave cavities; one end of the first-stage gear selecting spring is connected with the end face of the gear selecting sleeve, the other end of the first-stage gear selecting spring is connected with the bottom surface of the central concave cavity of the second-stage gear selecting limiting component, and the outer diameter of the gear selecting sleeve is larger than the inner diameter of the top of the central concave cavity of the second-stage gear selecting limiting component; one end of the second-stage gear selecting spring is connected with the outer edge of the central concave cavity of the second-stage gear selecting limiting component, the other end of the second-stage gear selecting spring is connected with the bottom surface of the central concave cavity of the third-stage gear selecting limiting component, and the outer diameter of the bottom of the central concave cavity of the second-stage gear selecting limiting component is smaller than the inner diameter of the top of the central concave cavity of the third-stage gear selecting limiting component; one end of the third-level gear selecting spring is connected with the outer edge of the central concave cavity of the third-level gear selecting limiting component, and the other end of the third-level gear selecting spring is connected with the bottom end of the shell.
Furthermore, a gear shifting sensor is arranged on the gear selecting and shifting shaft, and the gear shifting sensor can acquire the rotation angle value of the gear selecting and shifting shaft.
Furthermore, a gear selecting sensor is further arranged on the gear selecting sleeve, and the gear selecting sensor can acquire a horizontal displacement value of the gear selecting sleeve along the axis of the gear selecting and shifting shaft.
The utility model has the advantages of it is following:
1. the gear shifting is completed by driving the gear selecting and shifting shaft by the electromagnet, the executing efficiency is high, the response is rapid, and the component connection of the gear shifting executing mechanism is simple.
2. The gear selection is realized by driving the gear shifting shaft to horizontally displace through the electromagnet to select the gear of the corresponding level, and the execution efficiency is high.
3. The utilization is selected step by step and is kept off spacing subassembly and remove spacingly to the selection process of selecting the gear axle for select to keep off the electro-magnet when current control, can increase the electric current size step by step according to the elastic coefficient of the selection spring of different ranks, the border during current control is more clear, and control accuracy is higher.
Drawings
FIG. 1: the overall structure schematic diagram of the gear selecting and shifting actuating mechanism;
FIG. 2: a structural schematic diagram of the gear shifting connection unit;
FIG. 3: a first schematic diagram of a connection structure of the gear selection sensor;
FIG. 4: and a second schematic diagram of the connection structure of the gear selection sensor.
Detailed Description
In order that those skilled in the art can fully practice the invention, the following detailed description will be given with reference to the accompanying drawings.
As shown in fig. 1, an electromagnetic gear selecting and shifting actuator includes a housing 3, a gear selecting and shifting shaft 2 penetrating through the housing 3, and a gear selecting sleeve 15 sleeved on the gear selecting and shifting shaft 2, wherein a gear selecting and shifting finger 4 is fixedly connected to the gear selecting sleeve 15, and the gear selecting and shifting finger 4 can horizontally reciprocate along an axis of the gear selecting and shifting shaft 2 under the driving of the gear selecting sleeve 15; the gear selecting and shifting shaft 2 can rotate around the axis thereof and drive the gear selecting sleeve 15 to rotate; the outside of the shell 3 also comprises a shifting electromagnet 9, the free end of the shifting electromagnet 9 is connected with one end of the gear selecting and shifting shaft 2 through a shifting connection unit, and the shifting connection unit can drive the gear selecting and shifting shaft 2 to rotate around the axis of the gear selecting and shifting shaft under the telescopic motion of the free end of the shifting electromagnet 9.
As shown in fig. 2, in the present embodiment, the gear selecting sleeve 15 is coaxially sleeved with the gear selecting and shifting shaft 2 and can horizontally reciprocate along the axis thereof. When the gear is selected, the gear selecting sleeve 15 is controlled to horizontally move along the axis of the gear selecting and shifting shaft 2 to correspond to the gear selecting position of the corresponding level, and the gear selecting and shifting finger 4 is located at the center line position of the gear of the corresponding level; when shifting gears, the shifting electromagnet 9 is controlled to be electrified, the free end of the shifting electromagnet drives the gear selecting and shifting shaft 2 to rotate through the gear shifting connection unit, and the gear selecting and shifting finger 4 rotates to the required gear. Compared with a motor and a worm mechanism rotating gear shifting structure in the prior art, the electromagnet execution efficiency is high, the rotating displacement required by gear shifting is small, and the gear shifting efficiency is improved.
The gear shifting connection unit comprises a gear shifting connecting rod 16, one end of the gear shifting connecting rod 16 is hinged with the free end of the gear shifting electromagnet 9, the other end of the gear shifting connecting rod 16 is fixedly connected with the gear selecting and shifting shaft 2, and the gear selecting and shifting shaft 2 is driven to rotate through the gear shifting connecting rod 16 under the telescopic motion of the free end of the gear shifting electromagnet 9.
As shown in fig. 2, in the present embodiment, there are two shift electromagnets 9, and two ends of the shift link 16 are respectively hinged to the free ends of the two shift electromagnets 9, and a through hole is formed in the center thereof, and the shift shaft 2 penetrates through the through hole and is fixedly connected thereto. When the gear shifting operation is needed, one of the gear shifting electromagnets 9 is powered on, the other one is not powered on, and at the moment, the gear shifting connecting rod 16 rotates under the control of the free end of the powered gear shifting electromagnet 9, so that the gear selecting sleeve 15 is driven to rotate, and the gear selecting and shifting finger 4 rotates to the required gear. Similarly, when the gear needs to be shifted to the opposite gear, the shifting electromagnet 9 is electrified and the sequence is exchanged, and then the shifting link 16 rotates reversely to rotate the shifting finger 4 to the opposite gear.
As shown in fig. 1, the gear selecting device further comprises a gear selecting electromagnet 14 and a gear selecting connecting unit, wherein the gear selecting connecting unit is respectively connected with the gear selecting sleeve 15 and the free end of the gear selecting electromagnet 14, and the gear selecting sleeve 15 is driven by the gear selecting connecting unit to horizontally reciprocate along the axis of the gear selecting and shifting shaft 2 under the telescopic motion of the free end of the gear selecting electromagnet 14.
Generally, the free end of the gear selection electromagnet 14 can be fixedly connected with the gear selection sleeve 15 through a simple pull rod, when the free end of the gear selection electromagnet 14 is electrically stretched, the gear selection sleeve 15 can be pulled by the pull rod to horizontally reciprocate along the axis of the gear selection and shift shaft 2 to complete the gear selection operation of horizontal displacement, and at the moment, the stretching displacement of the free end of the gear selection electromagnet 14 is equal to the horizontal displacement of the gear selection sleeve 15.
In general situations, the telescopic displacement of the free end of the gear selection electromagnet 14 and the horizontal displacement of the gear selection sleeve 15 are often difficult to match, and the horizontal displacement of the gear selection sleeve 15 is often significantly larger than the telescopic displacement of the free end of the gear selection electromagnet 14.
To further solve this problem: the gear selecting connecting unit comprises a gear selecting finger 12 and a gear selecting connecting rod assembly 13, one end of the gear selecting finger 12 is movably connected with a gear selecting sleeve 15, the other end of the gear selecting finger is fixedly connected with the gear selecting connecting rod assembly 13, the gear selecting connecting rod assembly 13 is at least provided with a fulcrum, one end of the gear selecting connecting rod assembly 13 is hinged with the free end of the gear selecting electromagnet 14, and the gear selecting connecting rod assembly 13 is driven to rotate around the fulcrum under the telescopic motion of the free end of the gear selecting electromagnet 14 and further drives the gear selecting finger 12 to rotate; a limiting groove 17 is formed in the gear selecting sleeve 15, the connecting end of the gear selecting finger 12 and the gear selecting sleeve 15 is clamped into the limiting groove 17, the contact surface of the gear selecting finger 12 and the limiting groove 17 is a cambered surface, and under the guiding effect of the limiting groove 17, the gear selecting finger 12 can drive the gear selecting sleeve 15 to horizontally reciprocate along the axis of the gear selecting and shifting shaft 2 when rotating.
An embodiment of the connecting-rod assembly 13 is as follows: the connecting rod assembly 13 comprises a first connecting rod 131 and a second connecting rod 132, the first connecting rod 131 and the second connecting rod 132 are fixedly connected and can rotate around a pivot A, and one end of the first connecting rod 131 is hinged with the free end of the gear selecting electromagnet 14. The third connecting rod 133 and the gear selecting finger 12 are fixedly connected and can rotate around a pivot B, a pin 134 is fixedly connected to one end of the second connecting rod 132, a U-shaped through hole 135 is formed in one end of the third connecting rod 133, and the pin 134 is embedded into the U-shaped through hole 135. Therefore, when the free end of the gear selecting electromagnet 14 extends out, the first connecting rod 131 and the second connecting rod 132 can be driven to rotate around the pivot B, the third connecting rod 133 and the gear selecting finger 12 are driven to rotate by sliding the pin 134 in the U-shaped through hole 135, the connecting end of the gear selecting finger 12 and the gear selecting sleeve 15 is clamped into the limiting groove 17 in a spherical manner, and the gear selecting sleeve 15 is driven to horizontally move rightwards under the guiding action in the limiting groove 17 to complete the gear selecting operation. Through a series of lever rotations of link assembly 13, the flexible displacement of the free end of selection electromagnet 14 free end is enlargied, is convenient for on the one hand carry out current control to selection electromagnet 14, and on the other hand has reduced the energy consumption of selection electromagnet 14.
The shell 3 further comprises a step-by-step gear selecting limiting unit, the step-by-step gear selecting limiting unit comprises n-step gear selecting limiting assemblies, and adjacent two-step gear selecting limiting assemblies are connected through a gear selecting springConnecting; the n-level gear selecting and limiting assemblies are sequentially arranged between the gear selecting sleeve 15 and the bottom end of the shell 3, the first-level gear selecting and limiting assembly is connected with one end of the gear selecting sleeve 15 through a first-level gear selecting spring, and the nth-level gear selecting and limiting assembly is connected with the bottom end of the shell 3 through an nth-level gear selecting spring; the elastic coefficient of the n-level gear-selecting limit spring meets an expression kn<kn+1。
In the prior art gear selection actuators, the displacement of the gear selection mechanism is limited and reset by a rebound limit spring. When overcoming the elastic force of the single-stage rebound limiting spring, the single-stage rebound limiting spring only overcomes the single nonlinear elastic coefficient of the single-stage rebound limiting spring to deform the single-stage rebound limiting spring to apply work, so that the control current of the gear selecting electromagnet 14 is determined, at the moment, the boundaries of the spring deformation corresponding to the gear selecting grades at all stages are not clearly distinguished, inconvenience is brought to the control current of the gear selecting electromagnet 14, and the control precision is often low.
In the embodiment, the n-stage gear selection limiting assemblies are connected through n gear selection springs, and when a gear is selected, if an I-stage gear needs to be selected, the gear selection sleeve 15 needs to be pushed to horizontally move towards the I-stage gear selection limiting assembly to overcome the I-stage gear selection spring to do work; need select II grades of fender position then need overcome I grade and II grade and select to keep off the spring and do work, analogize in proper order and need select the nth grade fender position then need overcome I grade to nth grade and select to keep off the spring and do work, select to keep off the required electro-magnet power of each kind of occasion of effectual differentiation step by step of increasing of spring force at all levels, can more accurate demarcation select to keep off the position, simultaneously the effectual life who improves the electro-magnet. The elastic coefficient of the n-level gear-selecting limit spring meets an expression kn<kn+1The synchronous displacement of the n +1 th-stage gear selection limiting assembly and the subsequent gear selection limiting assembly can not be caused when the n-th-stage gear selection limiting assembly is pushed to displace, and the work of only overcoming the n-th-stage gear selection spring is guaranteed.
When the gear selection overcomes the gear selection spring to do work, the gear selection spring is compressed, and in order to avoid the compression stroke of each stage of gear selection spring from being compressed to the limit, the n-stage gear selection limiting assembly further comprises a contact part thetanThe nth gear selection limiting component is relatively moved to the (n + 1) th gear selection limiting componentMove to the contact part thetanThe displacement when the gear-selecting limiting component is contacted with the (n + 1) th-stage gear-selecting limiting component is smaller than the maximum compression stroke of the nth-stage gear-selecting spring; the gear selecting sleeve 15 moves to a contact part theta relative to the I-stage gear selecting limiting component1The displacement during contact is smaller than the maximum compression stroke of the first-stage gear selecting spring; the nth-stage gear selection limiting assembly moves to a contact part theta relative to the bottom end of the shell 3nThe maximum displacement when contacting the bottom end of the housing 3 is smaller than the maximum compression stroke of the nth stage gear selecting spring. Thus, when the nth gear is selected, the contact portion θnThe gear selecting and limiting component is firstly contacted with the n +1 th-stage gear selecting and limiting component, and the displacement is smaller than the maximum compression stroke of the nth-stage gear selecting spring, so that the gear selecting displacement of each stage is smaller than the compression stroke of each stage of gear selecting spring. Thus, when the current of the electromagnet 14 is controlled, the deformation of each gear selecting spring can be accurately controlled. It is generally preferred that the nth stage gear selection limiting assembly moves relative to the (n + 1) th stage gear selection limiting assembly to the contact portion thetanThe displacement when contacting the n +1 th gear selection limiting assembly is between 30% and 70% of the maximum compression stroke of the n-th gear selection spring, and the n-th gear selection spring in the compression stroke range has better linearity.
The selector sleeve 15 can be reset to the initial position after the gear selection and shifting has been completed. The inner side of the shell 3 is fixedly provided with n limiting blocks 18 to limit the nth-stage gear selection limiting assembly to move in the direction relative to the (n-1) th-stage gear selection limiting assembly, the nth-stage gear selection limiting assembly is in an initial state when contacting with the nth limiting block 18, and the nth-stage limiting spring is in a pre-compression state at the moment.
After the nth gear is selected, the electromagnet 14 does not need to be kept electrified due to the guiding and limiting function of the body guide block 10 in the transmission gear set. Because the nth stage and the previous stage limiting springs are in a compressed state, the gear selecting electromagnet 14 is released at the moment, each stage of gear selecting limiting assembly can horizontally move relative to the gear selecting sleeve 15 under the effect of resilience force of the nth stage and the previous stage limiting springs, finally, the gear selecting sleeve 15 returns to an initial state through the first stage of gear selecting springs, each stage of gear selecting limiting assembly is limited by the limiting block 18 when returning, and at the moment, each stage of gear selecting springs return to a pre-compressed state of the initial state. When a gear needs to be selected next, the gear selecting sleeve 15 can push each stage of gear selecting limiting component to the position when retreating from the initial state by controlling the gear selecting electromagnet 14 according to the current before releasing.
A common class iii gear selection architecture is shown in fig. 1: the first-stage gear selection limiting component is the gear selection sleeve 15; the II-level gear selection limiting component and the III-level gear selection limiting component are both bowl-shaped components with central concave cavities 19; one end of the first-stage gear selecting spring 6 is connected with the end face of the gear selecting sleeve 15, the other end of the first-stage gear selecting spring is connected with the bottom surface of the central concave cavity 19 of the second-stage gear selecting limiting component, and the outer diameter of the gear selecting sleeve 15 is larger than the inner diameter of the top of the central concave cavity 19 of the second-stage gear selecting limiting component; one end of the second-stage gear selecting spring 7 is connected with the outer edge of the central concave cavity 19 of the second-stage gear selecting limiting component, the other end of the second-stage gear selecting spring is connected with the bottom surface of the central concave cavity 19 of the third-stage gear selecting limiting component, and the outer diameter of the bottom of the central concave cavity 19 of the second-stage gear selecting limiting component is smaller than the inner diameter of the top of the central concave cavity 19 of the third-stage gear selecting limiting component; one end of the III-level gear selecting spring 8 is connected with the outer edge of a central concave cavity 19 of the III-level gear selecting limiting component, and the other end of the III-level gear selecting spring is connected with the bottom end of the shell 3.
When a gear of the second level is selected, the gear selecting electromagnet 14 is controlled to drive the gear selecting sleeve 15 to overcome the action of the gear selecting spring 6 of the first level to do horizontal motion, when the end surface of the gear selecting sleeve 15 is contacted with the top surface edge of the central concave cavity 19 of the gear selecting limiting component of the second level, the gear selecting sleeve 7 of the second level is further overcome to do horizontal motion, and when the bottom of the central concave cavity 19 of the gear selecting limiting component of the second level is contacted with the top edge of the central concave cavity 19 of the gear selecting limiting component of the third level, the gear selecting process of the second level is completed.
In order to accurately control the rotation angle of the gear selecting and shifting shaft 2 during gear shifting operation, a gear shifting sensor 1 is arranged at the joint of the gear selecting and shifting shaft 2 and the shell 3, and the gear shifting sensor 1 can acquire the rotation angle value of the gear selecting and shifting shaft 2, so that whether the gear selecting and shifting shaft 2 rotates to a specified position during gear shifting is judged. The gear shift sensor 1 may be an angle sensor that is common in the prior art.
Similarly, the gear selecting sleeve 15 is further provided with a gear selecting sensor 11, and the gear selecting sensor 11 can acquire a horizontal displacement value of the gear selecting sleeve 15 along the axis of the gear selecting and shifting shaft 2. Generally, the gear selection sensor 11 can directly acquire the horizontal displacement value of the gear selection sleeve 15 by using a displacement sensor. In this embodiment, a vertical rectangular groove 111 is formed in the gear selecting sleeve 15, the direction of the groove is perpendicular to the axial direction of the gear selecting sleeve 15, one end of a sensor link 112 is inserted into the rectangular groove 111 through a pin, the gear selecting sensor 11 is an angle sensor, and the sensor link 112 is fixedly connected with the detection end of the angle sensor. When the gear selection sleeve 15 is horizontally displaced along the axis to select gears, the sensor connecting rod 112 rotates around the detection shaft end of the angle sensor under the guiding action of the rectangular groove 111, and the displacement of the gear selection sleeve 15 can be obtained by obtaining the rotation angle of the sensor connecting rod 112. Thus, the range of angle detection can be enlarged by converting the angle into horizontal displacement, and the detection precision is improved.
Obviously, the above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides an electromagnetic type selects gear shift actuating mechanism, includes casing (3) and runs through select gear shift axle (2) of casing (3), its characterized in that: the gear selecting and shifting device is characterized by further comprising a gear selecting sleeve (15) sleeved on the gear selecting and shifting shaft (2), wherein a gear selecting and shifting finger (4) is fixedly connected to the gear selecting sleeve (15), and the gear selecting and shifting finger (4) can horizontally reciprocate along the axis of the gear selecting and shifting shaft (2) under the driving of the gear selecting sleeve (15); the gear selecting and shifting shaft (2) can rotate around the axis and drive the gear selecting sleeve (15) to rotate; the outside of the shell (3) further comprises a shifting electromagnet (9), the free end of the shifting electromagnet (9) is connected with one end of the gear selecting and shifting shaft (2) through a shifting connection unit, and the shifting connection unit can drive the gear selecting and shifting shaft (2) to rotate around the axis of the shifting and shifting shaft under the telescopic motion of the free end of the shifting electromagnet (9).
2. The electromagnetic shift select actuator of claim 1 wherein: the gear shifting connection unit comprises a gear shifting connecting rod (16), one end of the gear shifting connecting rod (16) is hinged to the free end of the gear shifting electromagnet (9), the other end of the gear shifting connecting rod is fixedly connected with the gear selecting and shifting shaft (2), and the gear selecting and shifting shaft (2) is driven to rotate through the gear shifting connecting rod (16) under the telescopic motion of the free end of the gear shifting electromagnet (9).
3. The electromagnetic shift select actuator of claim 2 wherein: the gear selecting and shifting device is characterized by further comprising a gear selecting electromagnet (14) and a gear selecting and shifting connecting unit, wherein the gear selecting and shifting connecting unit is respectively connected with the gear selecting sleeve (15) and the free end of the gear selecting electromagnet (14), and the gear selecting sleeve (15) is driven to horizontally reciprocate along the axis of the gear selecting and shifting shaft (2) through the gear selecting and shifting connecting unit under the telescopic motion of the free end of the gear selecting electromagnet (14).
4. The electromagnetic shift select actuator of claim 3 wherein: the gear selecting connecting unit comprises a gear selecting finger (12) and a gear selecting connecting rod assembly (13), one end of the gear selecting finger (12) is movably connected with the gear selecting sleeve (15), the other end of the gear selecting finger is fixedly connected with the gear selecting connecting rod assembly (13), the gear selecting connecting rod assembly (13) is at least provided with a fulcrum, one end of the gear selecting connecting rod assembly (13) is hinged with the free end of the gear selecting electromagnet (14), and the gear selecting connecting rod assembly (13) is driven to rotate around the fulcrum of the gear selecting connecting rod assembly (13) under the telescopic motion of the free end of the gear selecting electromagnet (14) and further drives the gear selecting finger (12) to rotate; a limiting groove (17) is formed in the gear selecting sleeve (15), the connecting end of the gear selecting finger (12) and the gear selecting sleeve (15) is clamped into the limiting groove (17), the contact surface of the gear selecting finger (12) and the limiting groove (17) is an arc surface, and under the guiding effect of the limiting groove (17), the gear selecting finger (12) can be driven to horizontally reciprocate along the axis of the gear selecting and shifting shaft (2) when rotating.
5. The electromagnetic shift select actuator of any one of claims 1-4 wherein: the shell (3) also comprises a step-by-step gear selection limiting unit, the step-by-step gear selection limiting unit comprises n-step gear selection limiting assemblies, and adjacent two-step gear selection limiting assemblies are connected through a gear selection spring; the n-stage gear selecting and limiting assemblies are sequentially arranged between the gear selecting sleeve (15) and the bottom end of the shell (3), the first-stage gear selecting and limiting assembly is connected with one end of the gear selecting sleeve (15) through a first-stage gear selecting spring, and the n-stage gear selecting and limiting assembly is connected with the bottom end of the shell (3) through an n-stage gear selecting spring; the elastic coefficient of the n-level gear-selecting limit spring meets an expression Kn<Kn+1。
6. The electromagnetic shift select actuator of claim 5 wherein: the n-level gear selection limiting assembly further comprises a contact part thetanThe nth gear selection limiting component moves to a contact part theta relative to the (n + 1) th gear selection limiting componentnThe displacement when the gear-selecting limiting component is contacted with the (n + 1) th-stage gear-selecting limiting component is smaller than the maximum compression stroke of the nth-stage gear-selecting spring; the gear selecting sleeve (15) moves to a contact part theta relative to the first-stage gear selecting limiting component1The displacement during contact is smaller than the maximum compression stroke of the first-stage gear selecting spring; the nth-stage gear selection limiting assembly moves to a contact part theta relative to the bottom end of the shell (3)nThe maximum displacement when contacting the bottom end of the shell (3) is smaller than the maximum compression stroke of the nth-stage gear selecting spring.
7. The electromagnetic shift select actuator of claim 6 wherein: the inner side of the shell (3) is fixedly provided with n limiting blocks (18) to limit the nth-stage gear selection limiting assembly to move in the direction relative to the (n-1) th-stage gear selection limiting assembly, the nth-stage gear selection limiting assembly is in an initial state when contacting with the nth limiting block (18), and the nth-stage limiting spring is in a pre-compression state at the moment.
8. The electromagnetic shift select actuator of claim 7 wherein: the step-by-step gear selection limiting unit comprises a step-III gear selection limiting component, and the step-I gear selection limiting component is the gear selection sleeve (15); the II-level gear selection limiting component and the III-level gear selection limiting component are both bowl-shaped components with central concave cavities (19); one end of the first-stage gear selecting spring (6) is connected with the end face of the gear selecting sleeve (15), the other end of the first-stage gear selecting spring is connected with the bottom surface of the central concave cavity (19) of the second-stage gear selecting limiting component, and the outer diameter of the gear selecting sleeve (15) is larger than the inner diameter of the top of the central concave cavity (19) of the second-stage gear selecting limiting component; one end of a second-stage gear selecting spring (7) is connected with the outer edge of a central concave cavity (19) of the second-stage gear selecting limiting component, the other end of the second-stage gear selecting spring is connected with the bottom surface of the central concave cavity (19) of the third-stage gear selecting limiting component, and the outer diameter of the bottom of the central concave cavity (19) of the second-stage gear selecting limiting component is smaller than the inner diameter of the top of the central concave cavity (19) of the third-stage gear selecting limiting component; one end of a third-level gear selecting spring (8) is connected with the outer edge of a central concave cavity (19) of the third-level gear selecting limiting component, and the other end of the third-level gear selecting spring is connected with the bottom end of the shell (3).
9. The electromagnetic shift select actuator of claim 5 wherein: the gear selecting and shifting shaft (2) is provided with a gear shifting sensor (1), and the gear shifting sensor (1) can acquire the rotation angle value of the gear selecting and shifting shaft (2).
10. The electromagnetic shift select actuator of claim 5 wherein: the gear selecting sleeve (15) is also provided with a gear selecting sensor (11), and the gear selecting sensor (11) can acquire a horizontal displacement value of the gear selecting sleeve (15) along the axis of the gear selecting and shifting shaft (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020950144.4U CN212389740U (en) | 2020-05-29 | 2020-05-29 | Electromagnetic type gear selecting and shifting actuating mechanism |
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| CN202020950144.4U CN212389740U (en) | 2020-05-29 | 2020-05-29 | Electromagnetic type gear selecting and shifting actuating mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775744A (en) * | 2021-10-26 | 2021-12-10 | 安徽江淮汽车集团股份有限公司 | Hydraulic automatic gear shifting and selecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775744A (en) * | 2021-10-26 | 2021-12-10 | 安徽江淮汽车集团股份有限公司 | Hydraulic automatic gear shifting and selecting system |
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