Acceleration control clutch

Abstract

The utility model discloses an acceleration control clutch which comprises a driving piece and a flange which are sequentially arranged in the same direction, the driving piece is sleeved on a driven piece in an empty mode, and the flange is connected with the driven piece. Wherein a plurality of connecting parts are arranged on the side, close to the flange, of the driving part, meshing parts corresponding to the connecting parts are further arranged on the inner ring of the flange, the connecting parts are located in the inner ring of the flange, and the connecting parts can be meshed with the meshing parts when the acceleration of the driving part reaches a threshold value. The driving part and the driven part are connected into a whole to transmit power. The device is triggered based on acceleration and can adapt to acceleration effects in different directions, such as different acting directions of loads such as earthquakes and strong wind, the active part serves as a reference object, the structural part connection is buffered as long as the speed of the active part is larger than a preset threshold value, and the response speed is high and reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of clutches, and in particular relates to an acceleration-controlled clutch. Background Art

[0002] The common clutch is installed between the engine and the transmission. It is an assembly directly connected to the engine in the automobile transmission system. During the entire process from starting to normal driving of the automobile, the driver can operate the clutch as needed to temporarily separate or gradually engage the engine and the transmission system to cut off or transfer the power output from the engine to the transmission system.

[0003] At the same time, clutches are also widely used in other components that need to be connected and separated, such as in bridge supports, where the movable piers swing under normal conditions to absorb the deformation and displacement of the bridge caused by temperature and load, and in earthquakes, they need to be connected to the bridge for earthquake resistance.

[0004] Current clutch devices mainly use external forces for engagement and separation operations, or are based on force and displacement clutching, which makes it difficult to adapt to the clutch function requirements with acceleration, such as reliable and timely cutting off of the connection between structures and force transmission in situations such as earthquakes, strong winds, and collisions. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide an acceleration-controlled clutch. Based on the acceleration trigger, if the active part rotates rapidly, that is, when its acceleration reaches or exceeds the preset threshold value, the connecting part thereon is expanded by the centrifugal force and connected with the meshing part, so that the active part and the flange are combined with each other. When the active part rotates slowly, the centrifugal force on the connecting part is not enough to connect it with the meshing part, that is, the active part and the flange are separated from each other. At the same time, it can also adapt to the acceleration effects in different directions, such as the different directions of action of loads such as earthquakes and strong winds. Taking the active part itself as a reference, as long as its acceleration is greater than the preset threshold value, the structural part connection is buffered, and the response speed is fast and reliable.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] An acceleration-controlled clutch comprises an active member and a flange arranged in sequence in the same direction, wherein the active member is sleeved on the passive member, and the flange is connected to the passive member;

[0008] Among them, a plurality of connecting parts are arranged on the side of the active part close to the flange, and the inner ring of the flange is also provided with a meshing part corresponding to the connecting part. The connecting part is located in the inner ring of the flange, and the connecting part can mesh with the meshing part when the acceleration of the active part reaches a threshold value, so that the active part and the passive part are connected as a whole to transmit power.

[0009] In one embodiment, the meshing portion is a ratchet opened on the inner ring of the flange, the connecting portion is located at both ends of the inner side of the flange, one end of the connecting portion is hinged to the side wall of the active member through a hinge shaft, and the other end is a pawl corresponding to the ratchet, and an elastic member is also provided on the side wall of the active member, one end of the elastic member is fixed on the active member, and the other end is connected to the pawl.

[0010] In one embodiment, the inner ring of the flange has two circles of ratchets arranged alternately, and the side wall of the active member is provided with two connecting parts distributed at the left and right ends thereof, and the ratchets of the two connecting parts are matched with one of the ratchets respectively.

[0011] In one embodiment, a stop column is further provided between the hinge shaft and the elastic member, and the stop column is used to contact the side wall of the connecting portion.

[0012] In one embodiment, the elastic member is a spring, and when the spring is in a natural state, the pawl is separated from the ratchet wheel.

[0013] In one embodiment, the meshing portion is a plurality of tooth grooves opened on the inner ring of the flange, a plurality of slide grooves are opened on the side wall of the active member close to the flange, a buffer member is arranged in the slide groove, the bottom of the connecting portion is arranged in the slide groove and connected to the buffer member, and the end of the connecting portion close to the tooth groove has connecting teeth matching the tooth groove.

[0014] In one embodiment, the buffer member is a spring, and when the spring is in a natural state, the connecting tooth is separated from the tooth groove.

[0015] In one embodiment, a plurality of tooth grooves are evenly spaced along the inner ring of the flange, the connecting parts are distributed around the active member, and each connecting tooth of the connecting part corresponds to one tooth groove.

[0016] In one embodiment, the active component is a wheel structure for transmitting power, the passive component is a rotating shaft for outputting power, and the inner ring of the wheel structure is loosely sleeved on the rotating shaft via a bearing.

[0017] In one embodiment, a keyway is provided on the rotating shaft, and the inner side of the flange is interference-connected with the rotating shaft via a connecting key and bolts.

[0018] The beneficial effects of the utility model are:

[0019] The clutch provided by the utility model can be triggered based on acceleration. If the active part rotates quickly, that is, when its speed reaches or exceeds a preset threshold, the connecting part thereon is expanded by the centrifugal force and connected with the meshing part, so that the active part and the flange are combined with each other. When the active part rotates slowly, the centrifugal force on the connecting part is not enough to connect it with the meshing part, that is, the active part and the flange are separated from each other. At the same time, it can also adapt to acceleration effects in different directions, such as earthquakes and strong winds, etc. The directions of action of loads are different. Taking the active part itself as a reference, as long as its acceleration is greater than the preset threshold, the structural part connection is buffered, and the response speed is fast and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0021] in:

[0022] Figure 1 A schematic structural diagram of an embodiment of the utility model is shown;

[0023] Figure 2 Shows Figure 1 A schematic diagram of the structure in another direction;

[0024] Figure 3 A structural schematic diagram showing another embodiment of the utility model;

[0025] Figure 4 Shows Figure 3 A schematic diagram of the structure in another direction;

[0026] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0027] Reference numerals:

[0028] 1-active part, 2-passive part, 3-flange, 4-ratchet, 5-connecting part, 6-stop column, 7-elastic part, 8-tooth groove, 9-connecting tooth, 10-slide groove, 11-buffer part, 501-ratchet, 502-hinge shaft. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with the accompanying drawings.

[0030] Example 1

[0031] The utility model provides an acceleration-controlled clutch, comprising an active component 1 and a flange 3 arranged in sequence along the same direction, the active component 1 is sleeved on the passive component 2, and the flange 3 is connected to the passive component 2;

[0032] Among them, a plurality of connecting parts 5 are arranged on one side of the active member 1 close to the flange 3, and a meshing part corresponding to the connecting part 5 is also provided on the inner ring of the flange 3. The connecting part 5 is located in the inner ring of the flange 3, and the connecting part 5 can mesh with the meshing part when the acceleration of the active member 1 reaches a threshold value, so that the active member 1 and the passive member 2 are connected as a whole to transmit power;

[0033] It should be noted that the active component 1 is loosely sleeved on the passive component 2, that is, the two are separated from each other in a natural state, and when the acceleration of the active component 1 reaches a threshold value, the connecting portion 5 on its side wall is expanded by the centrifugal force, and then contacts the meshing portion on the inner ring of the flange 3, so that the flange 3 rotates under the action of the active component 1, and then drives the passive component connected thereto to rotate, that is, the active component 1 and the passive component 2 are connected as a whole to transmit power, without manual operation, the active component 1 and the passive component 2 can be combined with or separated from each other according to the acceleration in the current state, the active component 1 can be rotated by a power source such as a motor, or can be rotated passively by external forces, such as earthquakes, strong winds, etc., that is, when the external load is strong, the active component 1 automatically combines with the flange 3, and then drives the passive component 2, such as when a bridge is subjected to a strong external load, it automatically connects with the earthquake-resistant structure to ensure the safety of the bridge;

[0034] Specifically, Figure 1 and Figure 2 As shown, the meshing portion is a ratchet 4 provided on the inner ring of the flange 3, the connecting portion 5 is located at both ends of the inner side of the flange 3, one end of the connecting portion 5 is hinged to the side wall of the active member 1 through a hinge shaft 502, and the other end is a pawl 501 corresponding to the ratchet 4, an elastic member 7 is also provided on the side wall of the active member 1, one end of the elastic member 7 is fixed to the active member 1, and the other end is connected to the pawl 501, the inner ring of the flange 3 has two circles of ratchet 4 arranged alternately, and the side wall of the active member 1 is provided with two connecting portions 5 distributed at its left and right ends, and the pawls 501 of the two connecting portions 5 are matched with one ratchet 4 respectively;

[0035] It should be noted that the elastic member 7 is arranged to hold the pawl 501, that is, in the natural state or when the active member 1 rotates at a low speed, the pawl 501 cannot mesh with the ratchet 4 due to the pulling force of the elastic member 7, and the active member 1 and the flange 3 remain separated. When the acceleration of the active member 1 reaches a preset value, the pawl 501 contacts the meshing portion under the action of centrifugal force, so that the active member 1 is combined with the flange 3, and then drives the passive member 2. The elastic coefficient of the elastic member 7, the position of the pawl 501, and the distance between the pawl 501 and the meshing portion are interrelated, and those skilled in the art can set them according to actual needs. The two circles of ratchet 4 staggered with each other are arranged on the flange 3, and the connecting parts 5 are arranged at the left and right ends of the side wall of the active member 1, and one connecting part 5 is matched with one ratchet 4, that is, whether the active member 1 rotates clockwise or counterclockwise, the pawl 501 with a connecting part 5 can be fully meshed with the ratchet 4, so as to adapt to multi-directional loads such as earthquakes;

[0036] Furthermore, the elastic member 7 is a spring. When the spring is in a natural state, the pawl 501 is separated from the ratchet 4. A stopper 6 is further provided between the hinge shaft 502 and the elastic member 7. The stopper 6 is used to contact the side wall of the connecting portion 5. That is, the stopper 6 can limit the pawl 501 to prevent the active member 1 and the flange 3 from excessively squeezing the spring when the active member 1 and the flange 3 are switched to a separated state.

[0037] Specifically, the active component 1 is a wheel structure for transmitting power, and the passive component 2 is a rotating shaft for outputting power. The inner ring of the wheel structure is sleeved on the rotating shaft through a bearing, and a keyway is provided on the rotating shaft. The inner side of the flange is interference-connected with the rotating shaft through a connecting key and a bolt. The wheel structure can be a gear, a sprocket, a pulley, etc., and the active component 1 and the passive component 2 can also be interchangeable.

[0038] Example 2

[0039] The utility model provides an acceleration-controlled clutch, comprising an active component 1 and a flange 3 arranged in sequence along the same direction, the active component 1 is sleeved on the passive component 2, and the flange 3 is connected to the passive component 2;

[0040] Among them, a plurality of connecting parts 5 are arranged on one side of the active member 1 close to the flange 3, and a meshing part corresponding to the connecting part 5 is also provided on the inner ring of the flange 3. The connecting part 5 is located in the inner ring of the flange 3, and the connecting part 5 can mesh with the meshing part when the acceleration of the active member 1 reaches a threshold value, so that the active member 1 and the passive member 2 are connected as a whole to transmit power;

[0041] It should be noted that the active component 1 is loosely sleeved on the passive component 2, that is, the two are separated from each other in a natural state, and when the acceleration of the active component 1 reaches a threshold value, the connecting portion 5 on its side wall is expanded by the centrifugal force, and then contacts the meshing portion on the inner ring of the flange 3, so that the flange 3 rotates under the action of the active component 1, and then drives the passive component connected thereto to rotate, that is, the active component 1 and the passive component 2 are connected as a whole to transmit power, without manual operation, the active component 1 and the passive component 2 can be combined with or separated from each other according to the acceleration in the current state, the active component 1 can be rotated by a power source such as a motor, or can be rotated passively by external forces, such as earthquakes, strong winds, etc., that is, when the external load is strong, the active component 1 automatically combines with the flange 3, and then drives the passive component 2, such as when a bridge is subjected to a strong external load, it automatically connects with the earthquake-resistant structure to ensure the safety of the bridge;

[0042] Specifically, Figure 3 and Figure 4 As shown, the meshing portion is a plurality of tooth grooves 8 opened on the inner ring of the flange 3, a plurality of slide grooves 10 are opened on the side wall of the active member 1 close to the flange 3, a buffer 11 is arranged in the slide groove 10, the bottom of the connecting portion 5 is arranged in the slide groove 10 and connected to the buffer 11, and the end of the connecting portion 5 close to the tooth groove 8 has a connecting tooth 9 matching the tooth groove 8, the buffer 11 is a spring, and when the spring is in a natural state, the connecting tooth 9 is separated from the tooth groove 8, and the plurality of tooth grooves 8 are evenly spaced along the inner ring of the flange 3. The connecting portions 5 are distributed around the active member 1, and the connecting teeth 9 of each connecting portion 5 correspond to a tooth groove 8;

[0043] It should be noted that a slide groove 10 is provided on the side wall of the gear ring, and a buffer member 11 is arranged in the slide groove 10. The bottom of the connecting part 5 is arranged in the slide groove 10 and connected to the buffer member 11, that is, when the active part 1 rotates, the connecting part 5 is squeezed by the centrifugal force to move toward the gear ring, and when the acceleration reaches a preset threshold, the connecting tooth 9 on the connecting part 5 is embedded in the tooth groove 8, so that the active part 1 and the flange 3 are combined with each other, thereby driving the passive part 2. After its speed decreases, under the elastic force of the spring, the connecting tooth 9 is pushed out of the tooth groove 8, that is, the active part 1 and the flange 3 are separated from each other, without the need for human control, that is, the clutch action is automatically completed according to the acceleration of the active part 1, based on the acceleration trigger, the response speed is fast, the elastic coefficient of the spring, the installation position of the connecting part 5, and the position of the connecting tooth 9 and the tooth groove 8 are related to each other, and those skilled in the art can set them according to actual needs, such as Figure 4 As shown, the four connecting parts 5 are respectively located at four positions of the active component 1, so that the active component 1 and the flange 3 are more stable when combined.

[0044] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0045] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. An acceleration-controlled clutch, characterized in that: It comprises an active component and a flange which are arranged in sequence along the same direction, wherein the active component is sleeved on the passive component, and the flange is connected to the passive component; Among them, a plurality of connecting parts are arranged on the side of the active part close to the flange, and the inner ring of the flange is also provided with a meshing part corresponding to the connecting part. The connecting part is located in the inner ring of the flange, and the connecting part can mesh with the meshing part when the acceleration of the active part reaches a threshold value, so that the active part and the passive part are connected as a whole to transmit power.

2. The acceleration-controlled clutch according to claim 1, characterized in that: The meshing portion is a ratchet wheel opened on the inner ring of the flange, and the connecting portion is located at both ends of the inner side of the flange. One end of the connecting portion is hinged to the side wall of the active member through a hinge shaft, and the other end is a pawl corresponding to the ratchet wheel. An elastic member is also provided on the side wall of the active member, one end of the elastic member is fixed on the active member, and the other end is connected to the pawl.

3. The acceleration-controlled clutch according to claim 2, characterized in that: The inner ring of the flange has two circles of ratchets arranged alternately, and the side wall of the active member is provided with two connecting parts distributed at the left and right ends thereof, and the ratchets of the two connecting parts are matched with one of the ratchets respectively.

4. The acceleration-controlled clutch according to claim 2, characterized in that: A stop column is further provided between the hinge shaft and the elastic member, and the stop column is used to contact the side wall of the connecting portion.

5. The acceleration-controlled clutch according to claim 2, characterized in that: The elastic member is a spring, and when the spring is in a natural state, the pawl is separated from the ratchet wheel.

6. The acceleration-controlled clutch according to claim 1, characterized in that: The meshing portion is a plurality of tooth grooves opened on the inner ring of the flange, a plurality of slide grooves are opened on the side wall of the active component close to the flange, a buffer is arranged in the slide groove, the bottom of the connecting portion is arranged in the slide groove and connected to the buffer, and the end of the connecting portion close to the tooth groove has connecting teeth matching the tooth groove.

7. The acceleration-controlled clutch according to claim 6, characterized in that: The buffer is a spring, and when the spring is in a natural state, the connecting tooth is separated from the tooth groove.

8. The acceleration-controlled clutch according to claim 6, characterized in that: The plurality of tooth grooves are evenly spaced along the inner ring of the flange, the connecting portion is distributed around the active component, and the connecting teeth of each connecting portion correspond to one tooth groove.

9. The acceleration-controlled clutch according to claim 1, characterized in that: The active component is a wheel structure for transmitting power, the passive component is a rotating shaft for outputting power, and the inner ring of the wheel structure is loosely sleeved on the rotating shaft via a bearing.

10. The acceleration-controlled clutch according to claim 9, characterized in that: A keyway is provided on the rotating shaft, and the inner side of the flange is interference-connected with the rotating shaft through a connecting key and bolts.

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