CN216332574U - Automatic inner speed changer and hub assembly - Google Patents
Automatic inner speed changer and hub assembly Download PDFInfo
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- CN216332574U CN216332574U CN202123239602.7U CN202123239602U CN216332574U CN 216332574 U CN216332574 U CN 216332574U CN 202123239602 U CN202123239602 U CN 202123239602U CN 216332574 U CN216332574 U CN 216332574U
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- centrifugal block
- internal transmission
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Abstract
An automatic internal transmission includes a hub axle; a hub rotatably fitted on the hub shaft; the planetary gear assembly is arranged on the hub shaft, is arranged in the hub and is used for transmitting driving force to the hub; the one-way clutch is arranged between the planetary gear assembly and the hub; the power input part is rotatably sleeved on the hub shaft and is used for providing driving force for the planetary gear assembly; a control loop acting on the one-way clutch; the centrifugal block is connected with the hub and the control ring, and the centrifugal block has a rotating state which rotates relative to the hub so as to drive the control ring to rotate, so that the driving force transmitted by the planetary gear assembly is transmitted to the hub through the one-way clutch; and the maintaining assembly is arranged on the hub and used for maintaining the state of the centrifugal block and/or the control ring after rotation. The application provides an automatic internal transmission and wheel hub subassembly, with prior art comparison, under the condition that the speed of a motor vehicle reduces, can keep the gear unchangeable for a period of time, improved user's the experience of riding.
Description
Technical Field
The present application relates to the field of bicycle transmission technology, and more particularly, to an automatic inner transmission and a hub assembly having the same.
Background
The bicycle inner speed changer takes the planetary gear assembly as a transmission main body, and is sealed and assembled in the hub of the rear wheel shaft, so that the defects of the outer speed changer can be overcome, better transmission performance is provided, and the inner speed changer is more and more popular in production and application.
Later, automatic internal transmissions appeared that were able to automatically shift with vehicle speed, improving the user experience. The existing automatic internal transmission is provided with a centrifugal block, and the centrifugal block rotates under the action of centrifugal force through the rotation of a hub or a planetary gear assembly, so that the centrifugal block acts on a one-way clutch, the driving force of the planetary gear assembly is transmitted to the hub through the one-way clutch, and automatic speed change is realized.
However, after the automatic speed change of the existing automatic internal transmission is completed, along with the reduction of the vehicle speed, the centrifugal block returns to the position before the automatic speed change, the user continues to ride, the automatic internal transmission changes the speed again, and the riding experience of the user is poor.
SUMMERY OF THE UTILITY MODEL
For solving above-mentioned technical problem, this application provides a derailleur and wheel hub subassembly in automation, compares in prior art, and under the condition that the speed of a motor vehicle reduces, can keep the gear unchangeable for a period of time, has improved user's the experience of riding.
In order to solve the problems of the prior art,
in a first aspect, the present application provides an automatic internal transmission comprising:
a hub shaft;
a hub rotatably fitted over the hub shaft;
the planetary gear assembly is arranged on the hub shaft, is arranged in the hub and is used for transmitting driving force to the hub;
the one-way clutch is arranged between the planetary gear assembly and the hub;
the power input part is rotatably sleeved on the hub shaft and is used for providing driving force for the planetary gear assembly;
a control loop acting on the one-way clutch;
the centrifugal block is connected with the hub and the control ring, and has a rotating state which rotates relative to the hub so as to drive the control ring to rotate, so that the driving force transmitted by the planetary gear assembly is transmitted to the hub through the one-way clutch;
and the retaining assembly is arranged on the hub and used for retaining the state of the centrifugal block and/or the control ring after rotation.
Preferably, the holding assembly includes:
the magnetic adsorption piece is arranged on the inner liner of the hub;
and the passive adsorption piece is arranged on the centrifugal block.
Preferably, the holding assembly includes:
the magnetic adsorption piece is arranged on the centrifugal block;
and the passive adsorption piece is arranged on the inner liner of the hub.
Preferably, the holding assembly includes:
the magnetic adsorption piece is arranged on the inner liner of the hub;
and the passive adsorption piece is arranged on the control ring.
Preferably, the holding assembly comprises an elastic sheet arranged on the inner liner of the hub, and a concave part is arranged on the elastic sheet;
the centrifugal block is provided with a pressing part, so that when the centrifugal block rotates, the pressing part can press the elastic sheet and then is located in the concave part.
Preferably, the elastic sheet comprises a connecting portion and an elastic portion, the connecting portion is mounted on the lining, and the concave portion is arranged on the elastic portion.
Preferably, the inner liner of the hub is provided with a mounting seat, and the centrifugal block is hinged to the mounting seat;
the retention assembly, comprising:
a spring plate arranged on the mounting seat, a concave part is arranged on the spring plate,
the centrifugal block is provided with a pressing part, so that when the centrifugal block rotates, the pressing part can press the elastic sheet and then is located in the concave part.
Preferably, the elastic sheet comprises a connecting portion and an elastic portion, the connecting portion is mounted on the mounting seat, and the concave portion is arranged on the elastic portion.
Preferably, the centrifugal block is further provided with a spring piece accommodating cavity for accommodating the spring piece.
Preferably, the holding assembly includes:
the guide limiting part is arranged on the liner of the hub;
the pressed part is limited by the guide limiting part;
the first pressure spring acts on the guide limiting part and the pressure piece;
the centrifugal block is provided with a pressing groove, so that when the centrifugal block rotates, the edge of the pressing groove can press the pressed piece, and the pressed piece is located in the pressing groove.
Preferably, the first and second liquid crystal materials are,
the guide limiting part is provided with a guide cavity, and the first pressure spring is arranged in the guide cavity;
the compression piece is provided with a limiting part, a blocking part is arranged at an outlet of the guide cavity, one end of the compression piece is connected with the first pressure spring, and the other end of the compression piece is arranged at the outlet, so that the limiting part is in the effect of the first pressure spring and is contacted with the blocking part.
Preferably, the first and second liquid crystal materials are,
the centrifugal block is hinged to the mounting seat;
the retention assembly, comprising:
a spring seat with a spring mounting position and hinged on the mounting seat,
and one end of the second pressure spring is connected with the spring mounting position, and the other end of the second pressure spring is connected with the centrifugal block.
Preferably, the inner liner of the hub is provided with a mounting seat, and the centrifugal block is hinged to the mounting seat.
Preferably, the centrifugal block includes an arm portion and a centrifugal portion connected to the arm portion, the arm portion is provided with a mounting pin, the mounting base is provided with a pin hole, the pin hole is sleeved on the mounting pin, and the arm portion can rotate around the mounting pin.
Preferably, the arm portion is provided with a mounting groove, and the control ring is provided with a connecting pin, the connecting pin being placed in the mounting groove and the arm portion being rotatable with respect to the connecting pin.
In a second aspect, the present application further provides a hub assembly comprising:
the automatic internal transmission of any one of the above; and the number of the first and second groups,
and the motor is arranged in the hub.
In a second aspect, the present application further provides a hub assembly comprising:
the automatic internal transmission of any one of the above; and the number of the first and second groups,
a lock disposed within the hub and capable of acting on the hub.
Compared with the prior art, the automatic inner speed changer provided by the utility model has the advantages that the hub is provided with the maintaining assembly for maintaining the state of the centrifugal block and/or the control ring after rotation, after the automatic inner speed changer finishes automatic speed change, even if the speed of a vehicle is reduced, the maintaining assembly can maintain the state of the centrifugal block after the centrifugal block rotates and/or the control ring, so that the driving force of the planetary gear assembly is transmitted to the hub through the one-way clutch (namely, the gear is kept unchanged), and after the speed of the vehicle is continuously reduced to a certain speed, the centrifugal block returns to the position before automatic speed change, so that the gear can be kept unchanged for a period of time under the condition of reducing the speed of the vehicle, and the riding experience of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an automatic internal transmission according to one embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an exemplary control ring mounting position of an automatic internal transmission according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of a state in which a retaining assembly operates in an automatic internal transmission according to one embodiment of the present invention;
FIG. 4 is an enlarged view of the point A in FIG. 3;
FIG. 5 is a schematic structural diagram of a mounting base according to an embodiment of the utility model;
FIG. 6 is a schematic structural diagram of a centrifugal block according to an embodiment of the present invention;
FIG. 7 is a schematic view of a magnetic attraction member on an inner liner according to an embodiment of the present invention;
FIG. 8 is an enlarged view of the point B in FIG. 7;
FIG. 9 is a schematic structural diagram of a control ring according to an embodiment of the present invention;
FIG. 10 is a perspective view of the retainer assembly of the second embodiment of the present invention;
FIG. 11 is a diagram illustrating a state of the retaining component during operation according to a second embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a retaining assembly according to a third embodiment of the present invention;
FIG. 13 is a diagram illustrating a state of the hold component when the hold component is not in operation according to a fourth embodiment of the present invention;
FIG. 14 is a diagram illustrating a state of the keeper assembly in operation according to a fourth embodiment of the present invention;
FIG. 15 is a schematic structural view of a spring seat in accordance with a fourth embodiment of the present invention;
fig. 16 is a schematic structural view of a hub assembly provided in an embodiment of the present invention.
Wherein the content of the first and second substances,
automatic internal transmission 10, motor 20, lock 30;
a hub shaft 100;
a planetary gear assembly 300, a one-way clutch 400, a power input 500;
a control ring 600, a connecting pin 610;
the centrifugal block 700, the arm part 710, the mounting pin 711, the mounting groove 712, the centrifugal part 720, the pressing part 721, the spring sheet accommodating cavity 730 and the pressing groove 740;
the spring holder comprises a holding assembly 800, an elastic sheet 810, a concave portion 811, a connecting portion 812, an elastic portion 813, a magnetic adsorption member 820, a passive adsorption member 830, a guide limiting member 841, a guide cavity 8411, a blocking portion 8412, a pressure receiving member 842, a limiting portion 8421, a first pressure spring 843, a spring seat 850, a spring mounting position 851 and a second pressure spring 852.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the 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.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
Example one
Referring to fig. 1 to 9 and 16, an embodiment of the present invention provides an automatic internal transmission 10, including: a hub axle 100; a hub 200 rotatably fitted over the hub axle 100; a planetary gear assembly 300 provided on the hub shaft 100 and disposed in the hub 200 for transmitting a driving force to the hub 200; a one-way clutch 400 provided between the planetary gear assembly 300 and the hub 200; a power input member 500 rotatably mounted on the hub axle 100 for providing a driving force to the planetary gear assembly 300; a control loop 600 acting on the one-way clutch 400; a centrifugal block 700 connected to the hub 200 and connected to the control ring 600, the centrifugal block 700 having a rotational state rotating with respect to the hub 200 to drive the control ring 600 to rotate, such that the driving force transmitted from the planetary gear assembly 300 is transmitted to the hub 200 through the one-way clutch 400; and a holding assembly 800 disposed on the hub 200 for holding the centrifugal mass 700 and/or the control ring 600 in a rotated state.
The automatic inner transmission provides a rotational force through the power input member 500, and the rotational force of the power input member 500 can be directly transmitted to the hub 200, so that the hub 200 rotates, and at this time, the bicycle wheel rotates. As the hub 200 rotates, the centrifugal block 700 rotates relative to the hub 200 due to the centrifugal force, the control ring 600 is driven to rotate during the rotation of the centrifugal block 700, and the control ring 600 acts on the one-way clutch 400, so that the one-way clutch 400 is driven during the rotation of the control ring 600, and the one-way clutch 400 is in a combined state, that is, the planetary gear assembly 300 can directly transmit the driving force after the speed change to the hub 200 through the one-way clutch 400. In the riding process of the user, as the vehicle speed (the rotation speed of the hub 200) is reduced, the centrifugal force applied to the centrifugal block 700 is reduced, and at this time, the centrifugal block 700 returns to the position before the rotation, and the gear-falling phenomenon (taking the second speed as an example, before the rotation of the centrifugal block 700, the first speed is the first speed, after the rotation of the centrifugal block 700, since the driving force of the hub 200 comes from the planetary gear assembly 300, and at this time, the second speed is the second speed, when the centrifugal block 700 is reduced by the centrifugal force, and returns to the rotation start position, the centrifugal block is dropped to the first speed), the automatic internal transmission provided by the embodiment of the utility model is provided with the retaining assembly 800, and the retaining assembly 800 can retain the state after the rotation of the centrifugal block 700 and/or the control ring 600, and therefore, even if the vehicle speed is reduced, the retaining assembly 800 can retain the state after the rotation of the centrifugal block 700 and/or the control ring 600 until the preset vehicle speed, so that the driving force of the planetary gear assembly 300 is transmitted to the hub 200 through the one-way clutch 400 (that, keep the gear unchangeable), after the speed of a motor vehicle continues to reduce to a certain speed, centrifugal block 700 gets back to the position before automatic gear shifting, consequently, under the condition that the speed of a motor vehicle reduces, can keep the gear unchangeable for a period of time until the preset speed of a motor vehicle, need not frequent automatic switch-over gear, improved user's the experience of riding.
In the embodiment of the present invention, the centrifugal block 700 is connected to the hub 200, specifically, the inner liner 210 of the hub 200 is provided with the mounting seat 220, and the centrifugal block 700 is hinged to the mounting seat 220. The centrifugal block 700 includes an arm 710 and a centrifugal portion 720 connected to the arm 710, the arm 710 is provided with a mounting pin 711, the mounting base 220 is provided with a pin hole 221, the pin hole 221 is sleeved on the mounting pin 711, and the arm 710 can rotate around the mounting pin 711.
When the hub 200 rotates, since the mounting base 220 is mounted on the lining 210 of the hub 200, the mounting base 220 rotates with the hub 200, the pin hole 221 also rotates with the hub 200, and since the arm 710 can rotate around the mounting pin 711, the centrifugal block 700 rotates around the mounting pin 711 by the centrifugal force while the mounting base 220 rotates with the hub 200, so that the centrifugal portion 720 approaches the lining 210 of the hub 200.
Of course, the positions of the mounting pin 711 and the pin hole 221 may be interchanged, that is, the mounting pin 711 may be provided in the mounting base 220 and the pin hole 221 may be provided in the arm 710.
In the embodiment of the present invention, the arm 710 is provided with the mounting groove 712, the control ring 600 is provided with the connection pin 610, the connection pin 610 is disposed in the mounting groove 712, and the arm 710 can rotate relative to the connection pin 610.
The mounting groove 712 is disposed at an end of the arm 710 away from the eccentric portion 720, and the mounting pin 711 is disposed between the mounting groove 712 and the eccentric portion 720. Thus, when the arm 710 rotates around the mounting pin 711 as an axis, the mounting groove 712 is driven to rotate around the mounting pin 711, and in the rotating process, the mounting groove 712 shifts the connecting pin 610 to drive the control ring 600 to rotate, so that the control ring 600 acts on the one-way clutch 400 and the one-way clutch 400 is in the engaged state.
Among them, the holding assembly 800 in the embodiment of the present invention includes: a magnetic attraction member 820 disposed on the inner liner 210 of the hub 200; the passive adsorption member 830 is disposed on the centrifugal block 700. The magnetic attraction member 820 can attract the passive attraction member 830 to each other.
When the centrifugal block 700 is rotated to a predetermined position by a centrifugal force, the one-way clutch 400 is in an engaged state, and the power input member 500 provides a rotational force to be transmitted to the hub 200 through the one-way clutch 400 via the planetary gear assembly 300. At this time, due to the mutual adsorption of the magnetic adsorption member 820 and the passive adsorption member 830, the state of the centrifugal block 700 after rotation is maintained, and even if the rotation speed of the hub 200 is reduced (the centrifugal block 700 is reduced by the centrifugal force), the centrifugal block 700 does not immediately return to the rotation start position.
Of course, the positions of the magnetic attraction member 820 and the passive attraction member 830 can be interchanged, that is, the magnetic attraction member 820 is disposed on the centrifugal mass 700, and the passive attraction member 830 is disposed on the lining 210 of the hub 200.
The magnetic adsorbing member 820 is preferably a magnet, and the passive adsorbing member 830 may be a magnet or a metal or alloy capable of being adsorbed by the magnet, such as iron, cobalt, or nickel.
When the magnetic attraction member 820 is disposed on the centrifugal block 700, a magnet mounting hole is disposed on the arm 710, and a magnet is mounted in the magnet mounting hole. When the centrifugal block 700 rotates to the position where the gear shifting is successful, the magnet contacts the passive attraction member 830, and the magnet and the passive attraction member attract each other to keep the centrifugal block 700.
The holding assembly 800 in the embodiment of the present invention may also adopt the following structure, which includes: a magnetic attraction member 820 disposed on the inner liner 210 of the hub 200; and a passive adsorption member 830 disposed on the control ring 600. Specifically, a rotation area is provided on the liner 210 of the hub 200, wherein the rotation area is a rotation notch 230 provided in the circumferential direction of the liner 210, the magnetic adsorbing member 820 is provided on a side wall of the rotation notch 230, and the passive adsorbing member 830 is an adsorbing piece provided on the control ring 600 and substantially parallel to the side wall of the rotation notch 230, and the adsorbing piece can rotate in the rotation notch 230 along with the rotation of the control ring 600. In-process of automatic interior derailleur variable speed, control ring 600 pivoted angle is not big, and the piece that adsorbs is not big in the displacement volume of rotating breach 230, because the magnet adsorption affinity is less, and can only have the adsorption in the certain distance, consequently, adopts this structure, can guarantee that the piece that adsorbs is in the adsorption zone region of magnet all the time, and the magnet adsorption affinity linearity is better, has further guaranteed the stability of keeping the gear.
Example two
As shown in fig. 10 and 11, the difference between the first embodiment and the second embodiment is that the structure of the holding assembly 800 is different.
The retaining assembly 800 of the embodiment of the present invention includes a spring 810 disposed on the liner 210 of the hub 200, wherein the spring 810 is provided with a recess 811; the centrifugal block 700 is provided with a pressing portion 721, so that when the centrifugal block 700 rotates, the pressing portion 721 can press the elastic sheet 810 and then is located in the concave portion 811.
The elastic piece 810 of the embodiment of the utility model comprises a connecting portion 812 and an elastic portion 813, wherein the connecting portion 812 is installed on the lining 210, and the concave portion 811 is arranged on the elastic portion 813. The centrifugal block 700 is provided with a spring sheet accommodating cavity 730 for accommodating the spring sheet 810.
When the hub 200 rotates, the centrifugal block 700 rotates around the mounting pin 711 as an axis by centrifugal force, during the rotation process, the centrifugal portion 720 approaches the inner liner 210, during the process, the pressing portion 721 on the centrifugal portion 720 contacts the elastic portion 813 on the elastic piece 810 first, and as the centrifugal block 700 continues to rotate, the end of the elastic portion 813 starts to enter the elastic piece accommodating cavity 730, the pressing portion 721 continues to press the elastic portion 813 until the pressing portion 721 slides into the concave portion 811, and at this time, the centrifugal block 700 rotates to the right position, and the gear shifting is successful. When the rotation speed of the hub 200 is reduced, the centrifugal block 700 is reduced by the centrifugal force, and at this time, the centrifugal block 700 tends to return to the start position before shifting, because the pressing portion 721 on the centrifugal block 700 is located in the concave portion 811 on the elastic portion 813, the centrifugal block 700 does not immediately return to the start position before shifting, and when the rotation speed of the hub 200 is reduced to a certain value, that is, when the centrifugal block 700 is reduced to a certain value by the centrifugal force, the pressing portion 721 overcomes the elastic force of the elastic portion 813, thereby returning to the start position before shifting.
By adopting the retaining assembly 800 provided by the embodiment of the utility model, under the condition that the vehicle speed is reduced, the gear can be kept unchanged for a period of time until the preset vehicle speed, frequent repeated automatic gear switching is not needed, and the riding experience of a user is improved.
EXAMPLE III
As shown in fig. 12, the difference between the first embodiment and the second embodiment is that the structure of the holding assembly 800 is different.
Among them, the holding assembly 800 in the embodiment of the present invention includes: a guide retainer 841 disposed on the liner 210 of the hub 200; a pressed part 842 limited by the guide limiting part 841; a first compression spring 843 acting on the guide limiting piece 841 and the pressure receiving piece 842; the centrifugal block 700 is provided with a pressing groove 740, so that when the centrifugal block 700 rotates, the edge of the pressing groove 740 can press the pressure-receiving member 842, so that the pressure-receiving member 842 is located in the pressing groove 740.
The guide limiting piece 841 is provided with a guide cavity 8411, and the first pressure spring 843 is arranged in the guide cavity 8411; the pressed piece 842 is provided with a limiting part 8421, the outlet of the guide cavity 8411 is provided with a blocking part 8412, one end of the pressed piece 842 is connected with the first pressure spring 843, and the other end of the pressed piece 842 is arranged at the outlet, so that the limiting part 8421 is in contact with the blocking part 8412 under the action of the first pressure spring 843.
When the hub 200 rotates, the centrifugal block 700 rotates around the mounting pin 711 as an axis under centrifugal force, during the rotation, the centrifugal portion 720 approaches the inner liner 210, during the rotation, the edge of the pressing groove 740 presses the pressure receiving member 842, the pressure receiving member 842 retracts to press the first pressure spring 843, so that the first pressure spring 843 is compressed, along with the continuous rotation of the centrifugal block 700, the pressure receiving member 842 retracts continuously until the pressure receiving member 842 slides into the pressing groove 740, at this time, the centrifugal block 700 rotates to the right position, and the gear shifting is successful. When the rotation speed of the hub 200 is reduced, the centrifugal block 700 is subjected to a centrifugal force, and at this time, the centrifugal block 700 tends to return to the initial position before shifting, because the pressure-receiving member 842 is located in the pressing groove 740, the centrifugal block 700 does not immediately return to the initial position before shifting, when the rotation speed of the hub 200 is reduced to a certain value, that is, when the rotation speed of the centrifugal block 700 is reduced to a certain value by the centrifugal force, the edge of the pressing groove 740 presses the pressure-receiving member 842 again, and the pressure-receiving member 842 retracts to press the first pressure spring 843, so that the pressure-receiving member 842 slides out from the pressing groove 740, and the centrifugal block 700 returns to the initial position before shifting.
By adopting the retaining assembly 800 provided by the embodiment of the utility model, under the condition that the vehicle speed is reduced, the gear can be kept unchanged for a period of time until the preset vehicle speed, frequent repeated automatic gear switching is not needed, and the riding experience of a user is improved.
Example four
As shown in fig. 13 to fig. 15, the difference between the present embodiment and the first embodiment is that the structure of the holding assembly 800 is different.
Among them, the holding assembly 800 in the embodiment of the present invention includes: a spring seat 850 with a spring mounting position 851 and hinged on the mounting seat 220, a second pressure spring 852 with one end connected with the spring mounting position 851, and the other end of the second pressure spring 852 is connected with the centrifugal block 700.
Specifically, the spring mounting position 851 is a first spring mounting pin arranged on the spring seat 850, and the second compression spring 852 is sleeved on the first spring mounting pin. A second spring mounting pin is arranged on the centrifugal block 700, the other end of the second pressure spring 852 is sleeved on the second spring mounting pin, and the second pressure spring 852 is always in a compressed state.
When the hub 200 rotates, the centrifugal block 700 is rotated by a centrifugal force around the mounting pin 711, during the rotation, the centrifugal portion 720 approaches the inner liner 210, the spring seat 850 also rotates relative to the mounting seat 220, during the rotation, the centrifugal portion 720 is constantly subjected to a force of the second compression spring 852, and along with the continuous rotation of the centrifugal block 700, until the centrifugal block 700 rotates to a position and the gear shifting is successful, the centrifugal block 700 is also constantly subjected to a force provided by the second compression spring 852, so that the position of the centrifugal block 700 after the gear shifting is successful is maintained. When the rotation speed of the hub 200 is reduced, the centrifugal block 700 is subjected to a centrifugal force, and at this time, the centrifugal block 700 tends to return to the start position before shifting, because the centrifugal block 700 is continuously subjected to a force provided by the second compression spring 852, the centrifugal block 700 does not immediately return to the start position before shifting, and when the rotation speed of the hub 200 is reduced to a certain value, that is, when the rotation speed of the centrifugal block 700 is reduced to a certain value by the centrifugal force, the centrifugal block 700 overcomes the force provided by the second compression spring 852, and thus returns to the start position before shifting.
By adopting the retaining assembly 800 provided by the embodiment of the utility model, under the condition that the vehicle speed is reduced, the gear can be kept unchanged for a period of time until the preset vehicle speed, frequent repeated automatic gear switching is not needed, and the riding experience of a user is improved.
As shown in fig. 16, an embodiment of the present invention further provides a hub assembly, including: the automatic internal transmission provided by any of the embodiments described above; and a motor 20 disposed within the hub 200 or a lock 30 capable of acting on the hub.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (16)
1. An automatic internal transmission, comprising:
a hub shaft;
a hub rotatably fitted over the hub shaft;
the planetary gear assembly is arranged on the hub shaft, is arranged in the hub and is used for transmitting driving force to the hub;
the one-way clutch is arranged between the planetary gear assembly and the hub;
the power input part is rotatably sleeved on the hub shaft and is used for providing driving force for the planetary gear assembly;
a control loop acting on the one-way clutch;
the centrifugal block is connected with the hub and the control ring, and has a rotating state which rotates relative to the hub so as to drive the control ring to rotate, so that the driving force transmitted by the planetary gear assembly is transmitted to the hub through the one-way clutch;
and the retaining assembly is arranged on the hub and used for retaining the state of the centrifugal block and/or the control ring after rotation.
2. The automatic internal transmission of claim 1, wherein said retaining assembly comprises:
the magnetic adsorption piece is arranged on the inner liner of the hub;
and the passive adsorption piece is arranged on the centrifugal block.
3. The automatic internal transmission of claim 1, wherein said retaining assembly comprises:
the magnetic adsorption piece is arranged on the centrifugal block;
and the passive adsorption piece is arranged on the inner liner of the hub.
4. The automatic internal transmission of claim 1, wherein said retaining assembly comprises:
the magnetic adsorption piece is arranged on the inner liner of the hub;
and the passive adsorption piece is arranged on the control ring.
5. The automatic internal transmission of claim 1, wherein said retaining assembly comprises a spring disposed on an inner liner of said hub, said spring having a recess disposed therein;
the centrifugal block is provided with a pressing part, so that when the centrifugal block rotates, the pressing part can press the elastic sheet and then is located in the concave part.
6. The automatic internal transmission of claim 5, wherein the spring plate comprises a connecting portion and a resilient portion, the connecting portion being mounted on the inner lining, the recess being disposed in the resilient portion.
7. The automatic internal transmission of claim 1, wherein a mounting seat is mounted on an inner liner of the hub, and the centrifugal block is hinged to the mounting seat;
the retention assembly, comprising:
a spring plate arranged on the mounting seat, a concave part is arranged on the spring plate,
the centrifugal block is provided with a pressing part, so that when the centrifugal block rotates, the pressing part can press the elastic sheet and then is located in the concave part.
8. The automatic internal transmission of claim 7, wherein the spring plate includes a connecting portion and a resilient portion, the connecting portion being mounted on the mounting seat, the recess being disposed in the resilient portion.
9. The automatic internal transmission according to any one of claims 5 to 8, wherein a spring piece accommodating cavity for accommodating the spring piece is further arranged on the centrifugal block.
10. The automatic internal transmission of claim 1, wherein said retaining assembly comprises:
the guide limiting part is arranged on the liner of the hub;
the pressed part is limited by the guide limiting part;
the first pressure spring acts on the guide limiting part and the pressure piece;
the centrifugal block is provided with a pressing groove, so that when the centrifugal block rotates, the edge of the pressing groove can press the pressed piece, and the pressed piece is located in the pressing groove.
11. The automatic internal transmission of claim 10,
the guide limiting part is provided with a guide cavity, and the first pressure spring is arranged in the guide cavity;
the compression piece is provided with a limiting part, a blocking part is arranged at an outlet of the guide cavity, one end of the compression piece is connected with the first pressure spring, and the other end of the compression piece is arranged at the outlet, so that the limiting part is in the effect of the first pressure spring and is contacted with the blocking part.
12. The automatic internal transmission of claim 1,
the centrifugal block is hinged to the mounting seat;
the retention assembly, comprising:
a spring seat with a spring mounting position and hinged on the mounting seat,
and one end of the second pressure spring is connected with the spring mounting position, and the other end of the second pressure spring is connected with the centrifugal block.
13. The automatic inner transmission according to any one of claims 1 to 6, 10 or 11, characterized in that a mounting seat is mounted on an inner lining of the hub, and the centrifugal block is hinged on the mounting seat.
14. The automatic internal transmission of claim 13, wherein the eccentric mass comprises an arm portion and an eccentric portion connected to the arm portion, wherein a mounting pin is provided on the arm portion, wherein a pin hole is provided on the mounting seat, wherein the pin hole is sleeved on the mounting pin, and wherein the arm portion is rotatable about the mounting pin.
15. The automatic internal transmission according to claim 14, wherein a mounting groove is provided on the arm portion, and a connecting pin is provided on the control ring, the connecting pin being placed in the mounting groove and the arm portion being rotatable relative to the connecting pin.
16. A hub assembly, comprising:
the automatic internal transmission of any one of claims 1 to 15;
a motor disposed within the hub or a lock capable of acting on the hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123239602.7U CN216332574U (en) | 2021-12-21 | 2021-12-21 | Automatic inner speed changer and hub assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123239602.7U CN216332574U (en) | 2021-12-21 | 2021-12-21 | Automatic inner speed changer and hub assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216332574U true CN216332574U (en) | 2022-04-19 |
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ID=81166307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123239602.7U Active CN216332574U (en) | 2021-12-21 | 2021-12-21 | Automatic inner speed changer and hub assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216332574U (en) |
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2021
- 2021-12-21 CN CN202123239602.7U patent/CN216332574U/en active Active
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