CN214404563U - Connecting piece, driving chain, driving module and continuously variable transmission - Google Patents

Abstract

The utility model discloses a connecting piece, a transmission chain, a driving module and a continuously variable transmission, wherein the connecting piece comprises a main body, a rolling part, a first connecting part and a second connecting part, the main body is provided with a chute, the chute is provided with a first opening on the outer surface of the main body, and the distance between the chute and the first opening is gradually increased relative to the first chute wall of the first opening along the extending direction of the chute; the rolling part is embedded in the sliding groove, the diameter of the rolling part is larger than the width of the first opening, part of the rolling part extends out of the main body through the first opening, the rolling part can slide along the extension direction, the rolling part sliding to the first position is in a locking state relative to the main body, and the rolling part sliding to the second position can roll relative to the main body; the first connecting part is connected to one end of the main body; the second connecting part is connected to the other end of the main body opposite to the main body and is used for being rotatably connected with the first connecting part of the adjacent connecting piece. The utility model discloses a connecting piece can form the driving chain that has one-way transmission function.

Description

Connecting piece, driving chain, driving module and continuously variable transmission

Technical Field

The utility model belongs to the technical field of the transmission technique and specifically relates to a connecting piece, driving chain, drive module and continuously variable transmission.

Background

In industrial production, one-way transmission of a chain transmission structure is sometimes required, and in the related art, an overrunning clutch is usually adopted to achieve the above functions, for example, a driving shaft of a motor is connected with a driving wheel through the overrunning clutch, however, the above manner needs to control connection and disconnection of the overrunning clutch, and is complex in structure and inconvenient to operate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a connecting piece, the one-way transmission function can be realized to the driving chain that forms by the connecting piece.

The utility model discloses still provide a driving chain, drive module and continuously variable transmission including above-mentioned connecting piece.

According to the utility model discloses connecting piece of first aspect embodiment includes:

the sliding groove is provided with a first opening, and the distance between the sliding groove and a first groove wall of the first opening and the first opening is gradually increased along the extending direction of the sliding groove;

the rolling part is embedded in the sliding groove, the diameter of the rolling part is larger than the width of the first opening, part of the rolling part extends out of the main body through the first opening, and the rolling part can slide along the extending direction, wherein the rolling part which slides to the first position is in a locking state relative to the main body, and the rolling part which slides to the second position can roll relative to the main body;

the first connecting part is connected to one end of the main body;

and the second connecting part is connected to the other end, opposite to the main body, of the main body and is used for being rotatably connected with the first connecting part of the adjacent connecting piece.

According to the utility model discloses connecting piece has following beneficial effect at least:

in the connecting piece of the embodiment, the rolling part is embedded in the sliding groove, the distance between the first groove wall of the sliding groove relative to the first opening and the first opening is gradually increased, and when the rolling part slides to the first position, the rolling part is in a locking state relative to the main body due to friction, so that the rolling part and the main body can synchronously move in a single direction; when the rolling part slides to the second position, the rolling part can roll relative to the main body, and a transmission chain with a one-way transmission function is formed.

According to some embodiments of the invention, the first opening is located laterally of the main body.

According to some embodiments of the invention, the main body has two of the chutes, two of the chutes are respectively located on both sides of the main body.

According to some embodiments of the invention, along the extension direction, the first end of the chute is formed with a second opening in the main body, the diameter of the second opening being smaller than the diameter of the rolling portion.

According to some embodiments of the utility model, still include the shutoff piece, follow the extending direction, the second end of spout is in be formed with the third opening in the main part, the diameter of third opening is not less than the diameter of roll portion, the shutoff piece connect in main part and shutoff third opening.

According to the utility model discloses the driving chain of second aspect embodiment, it is including a plurality of the connecting piece, it is a plurality of the connecting piece rotates the connection in proper order.

According to the utility model discloses a some embodiments still include the pivot, first connecting portion have first pivot hole, the second connecting portion include the connecting plate of two parallels, the connecting plate has second pivot hole, two have the clearance between the connecting plate, first connecting portion are located adjacently the connecting piece in the clearance, the pivot is worn to establish first pivot hole and two the second is downthehole.

According to the utility model discloses drive module of third aspect embodiment includes:

the transmission chain;

the transmission wheels are provided with annular grooves arranged along the circumferential direction, the transmission chains are wound on the transmission wheels, and lateral groove walls of the annular grooves can be in contact with the rolling parts to drive the rolling parts to slide, so that the rolling parts at the first positions drive the transmission chains to move in a single direction;

and the power device is used for driving at least one driving wheel to rotate.

According to some embodiments of the invention, a lateral groove wall of the ring groove is adapted to be in contact with the rolling portion.

According to the utility model discloses drive module has following beneficial effect at least:

the utility model discloses one-way transmission can be realized to the drive module.

According to the utility model discloses infinitely variable transmission of fourth aspect embodiment includes:

the driving module comprises two driving wheels, wherein one driving wheel is connected with the power device to serve as a driving wheel, and the other driving wheel serves as a driven wheel;

the first adjusting device is used for adjusting the rotating radius of the transmission chain on the driving wheel;

the second adjusting device is used for adjusting the rotating and winding radius of the transmission chain on the driven wheel;

the change trend of the rotating radius of the transmission chain on the driving wheel is opposite to that of the rotating radius on the driven wheel.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

fig. 1 is a schematic perspective view of a connecting member according to an embodiment of the present invention;

FIG. 2 is a perspective view of the connector of FIG. 1 in another direction

FIG. 3 is a cross-sectional view of section A-A of FIG. 1;

FIG. 4 is a cross-sectional view of section B-B of FIG. 2;

FIG. 5 is a cross-sectional view of two of the connectors of FIG. 1 assembled;

fig. 6 is a schematic perspective view of a driving module according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a portion of the transmission chain connected to the driving wheel;

fig. 8 is a schematic view of a continuously variable transmission according to an embodiment of the present invention in an initial state;

fig. 9 is a schematic view of the continuously variable transmission of fig. 8 in a shifting state.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1 to 3, which illustrate schematic perspective views of an embodiment of the connector of the present invention, the connector 100 includes a main body 110, a rolling portion 120, a first connecting portion 130 and a second connecting portion 140, wherein the first connecting portion 130 and the second connecting portion 140 are used for realizing the rotation connection between adjacent connectors 100, and the rolling portion 120 is matched with the main body 110 to realize the rotation and locking of the rolling portion 120.

As shown in fig. 1 and 2, the main body 110 has a rectangular structure, the outer surface of which has a sliding groove 111, the sliding groove 111 extends in the front-rear direction of the main body 110, and a first opening 112 is formed on the outer surface of the main body 110, and the width of the first opening 112 is smaller than the diameter of the rolling part 120, so that part of the rolling part 120 can protrude from the first opening 112 to the outside of the sliding groove 111 without being separated from the sliding groove from the first opening 112. As shown in fig. 3, in an extending direction (e.g., a direction from back to front in the drawing) of the chute 111, the chute 111 is inclined with respect to the first chute wall 113 of the first opening 112 with respect to the side surface of the main body 110 such that a distance between the chute wall 113 and the first opening 112 gradually increases.

The rolling part 120 may be a ball-shaped structure as shown in the figure, the rolling part 120 is embedded in the sliding groove 111, part of the rolling part 120 extends out of the main body 110 through the first opening 112, and the extending part is used for contacting with other external members. The cross section of the sliding groove 111, or at least the cross section of the main portion thereof, is circular to accommodate the spherical rolling portion 120, and the diameter of the sliding groove 111 is not smaller than that of the rolling portion 120.

The rolling part 120 can slide in the sliding groove 111 along the extending direction of the sliding groove 111, and when the rolling part 120 slides to the second position shown in fig. 3, since the distance between the first groove wall 113 and the first opening 112 is the largest, the friction between the rolling part 120 and the second groove wall 113, and the friction between the rolling part 120 and the second groove wall 114 at the first opening 112 are smaller, and at this time, the rolling part 120 can roll in the sliding groove 111 relative to the main body 110. After the rolling part 120 slides a certain distance in the front-to-back direction to reach the first position, since the distance between the first groove wall 113 and the first opening 112 gradually decreases and the second groove wall 114 limits the displacement of the rolling part 120 in the left-to-right direction, the pressure between the rolling part 120 and the second groove wall 114 and the pressure between the rolling part 120 and the first groove wall 113 gradually increase, so that the friction force at the corresponding position also gradually increases, and when the friction force increases to a certain range, the rolling part 120 is locked at the first position, and at this time, the rolling part 120 can drive the main body 110 to synchronously move in the front-to-back direction in fig. 3.

It should be noted that the inclination angle of the groove wall 113 in the figure is only for illustration and does not represent an actual angle, and generally speaking, the inclination angle of the groove wall 113 is small, and the rolling part 120 can be switched between the first position and the second position by sliding a small distance.

In the connecting member of the present embodiment, the rolling part 120 is embedded in the sliding groove 111, and the distance between the sliding groove 111 and the first groove wall 113 of the first opening 112 and the first opening 112 gradually increases, when the rolling part 120 slides to the first position, the rolling part 120 is in a locked state relative to the main body 110 due to friction, so as to be capable of moving synchronously with the main body 110 in a single direction; when the rolling part 120 slides to the second position, the rolling part 120 may roll with respect to the main body 110.

Referring to fig. 1 to 3, in the above-described connection member, the first opening 112 of the sliding groove 111 is formed in a lateral direction of the main body 110, so that the rolling part 120 contacts an external member from the lateral direction of the main body 110. The main body 110 has two sliding grooves 111, the two sliding grooves 111 are respectively located on two sides of the main body 110, for example, one sliding groove 111 is located on the left side of the main body 110, the other sliding groove is located on the right side of the main body 110, and the two sliding grooves 111 are symmetrically arranged, so that the contact part of the connecting member 100 and the external member is distributed on two sides of the main body 110, which can reduce the stress between the single rolling part 120 and the main body 110, reduce the wear of the rolling part 120, and balance the stress.

Referring to fig. 1, in the above-described connector, the slide groove 111 penetrates the main body 110, and a second opening 115 is formed at a first end (for example, a front end shown in the drawing) of the slide groove 111 on a front side of the main body 110 in an extending direction of the slide groove 111, and a diameter of the second opening 115 is smaller than a diameter of the rolling portion 120, so that the rolling portion 120 does not separate from the slide groove from the first end of the slide groove 111. Specifically, the sliding groove 111 includes a first section near the rear side of the main body 110, and a second section near the front side of the main body 110, wherein the diameter of the second section is constant and not smaller than the diameter of the rolling part 120, and the diameter of the second section is gradually reduced until a second opening 115 having a smaller diameter than the rolling part 120 is formed at the front side of the main body 110.

Referring to fig. 2, a second end of the chute 111, for example, a rear end shown in the drawing) is formed with a third opening 116 in the main body 110, and the diameter of the third opening 116 is not smaller than the diameter of the rolling part 120, so that the rolling part 120 can be fitted into the chute 111 through the third opening 116. The diameter of the third opening 116 may be slightly larger than the diameter of the rolling part 120 to facilitate the installation of the rolling part 120. The connecting member 100 further comprises a not shown blocking member fixedly connected to the main body 110 and blocking the third opening 116 to prevent the rolling portion 120 from being separated from the sliding groove 111 from the third opening 116. Based on the above structure, the rolling part 120 can be easily installed in the sliding groove 111 and can be maintained inside the sliding groove 111 after assembly.

Referring to fig. 5, the present invention further discloses a transmission chain 300, wherein the transmission chain 300 includes a plurality of the above-mentioned connecting pieces 100, and the plurality of connecting pieces 100 are connected end to end in sequence to form a chain structure. Specifically, referring to fig. 1 and 2, the first connecting portion 130 and the second connecting portion 140 are respectively located at two opposite ends of the main body 110, for example, the first connecting portion 130 is located at the rear end of the main body 110, and the second connecting portion 140 is located at the front end of the main body 110. The first connecting portion 130 is a plate-shaped structure having a first pivot hole 131. The second connecting portion 140 includes two parallel connecting plates 141, the connecting plates 141 have a second rotating shaft hole 142, and a gap 143 is provided between the two connecting plates 141. During installation, the first connecting portion 130 of one connecting member 100 extends into the gap 143 of the adjacent connecting member 100, and the rotating shaft 150 penetrates through the first rotating shaft hole 131 and the two second rotating shaft holes 142 to realize the rotating connection of the adjacent connecting members 100.

Referring to fig. 6, the present invention also discloses a driving module, which comprises the above-mentioned transmission chain 300, power device and at least two transmission wheels 200, the transmission wheels 200 have the ring groove 210 arranged along the circumferential direction, and the transmission chain 300 is located in the ring groove 210 of the transmission wheels 200 when being wound on the transmission wheels 200. Taking a pair of driving wheels 200 as an example, the driving chains 300 are respectively wound on two driving wheels 200, one of which is used as a driving wheel, and the other is used as a driven wheel, and the power device is used for driving the driving wheel to rotate.

Referring to fig. 7, fig. 7 is a schematic cross-sectional view of a portion of the transmission chain 300 connected to the driving wheel, as shown in the figure, when the connecting member 100 enters the annular groove 210, the groove wall of the annular groove 210 can contact with the rolling portion 120, so that the rolling portion 120 can be driven to move by the rotation of the transmission wheel 200. When the rolling part 120 is located at the second position, the rolling part 120 can roll relative to the main body 110, and if the transmission wheel 200 rotates such that the groove wall moves forward in the figure relative to the rolling part 120, the rolling part 120 is kept at the position, and the transmission wheel 200 drives the rolling part 120 to roll, and each main body 110 is kept still, and the transmission chain 300 is kept still. If the transmission wheel 200 rotates reversely so that the groove wall moves backward in the figure relative to the rolling part 120, the transmission wheel 200 drives the rolling part 120 to roll on the one hand, and simultaneously drives the rolling part 120 to slide backward in the figure relative to the main body 110 until the groove wall slides to the first position, at this time, the rolling part 120 is kept in a locked state relative to the main body 110, so that the rolling part 120 drives the main body 110 to move backward in the figure, and the transmission chain 300 moves to drive the driven wheel to rotate, thereby realizing the transmission of power.

When the rolling part 120 is located at the first position, the rolling part 120 is in a locked state relative to the main body 110, and if the driving wheel 200 rotates to make the groove wall move backward in the drawing relative to the rolling part 120, the rolling part 120 continues to be kept in the locked state, the rolling part 120 drives the main body 110 to move, and the driving chain 300 realizes a driving function. If the transmission wheel 200 rotates reversely so that the groove wall moves forward in the figure relative to the rolling part 120, the rolling part 120 is released from the locking state and slides to the second position, and at this time, the rolling part 120 rolls relative to the main body 110, and the transmission chain 300 is in a static state. Based on the above, the drive module can realize the one-way transmission function.

Referring to fig. 7, in the driving module, the lateral groove wall 211 of the ring groove 210 is used to contact the rolling part 120.

Referring to fig. 8 and 9, the present invention further discloses a continuously variable transmission, including the above-mentioned driving module, the first adjusting device 400 and the second adjusting device 500, wherein the driving module includes two driving wheels, one of the driving wheels 200 (for example, the driving wheel on the left side of the figure) is connected to the power device to serve as a driving wheel, the other driving wheel 200 (for example, the driving wheel on the right side of the figure) serves as a driven wheel, the driving chain 300 is wound around the driving wheel and the driven wheel, and when the continuously variable transmission is in the state shown in fig. 8, a gap is formed between the driving chain 300 and the bottom groove wall 212 of the circular groove 210, that is, the driving chain 300 is connected to the driving wheel 200 only by the friction force with the lateral groove wall 211, and since the friction force between the driving part 120 and the lateral groove wall 211 is large, the driving chain 300 and the bottom groove wall 212 can be separated from each other.

The first adjusting device 400 is used for adjusting the turning radius of the transmission chain 300 on the driving wheel, the second adjusting device 500 is used for adjusting the turning radius of the transmission chain 300 on the driven wheel, and the variation trend of the turning radius of the transmission chain 300 on the driving wheel is opposite to that of the turning radius on the driven wheel. It can be understood that when the turning radius of the transmission chain 300 on the driving wheel becomes smaller, the turning radius of the transmission chain 300 on the driven wheel becomes correspondingly larger, and the rotation speed of the driven wheel is reduced. Since the change in the turning radius of the power transmission chain 300 is continuous, a continuously variable transmission function can be realized.

The first adjusting device 400 and the second adjusting device 500 may have the same structure, and taking the first adjusting device 400 as an example in the drawing, the first adjusting device 400 includes a pair of adjusting rollers through which the transmission chain 300 passes, and when the pair of adjusting rollers move in the up-and-down direction, the turning radius of the transmission chain 300 on the driving wheel can be adjusted. First adjusting device 400 is close to the action wheel setting, and is located the position that transmission chain 300 got into annular 210, and second adjusting device 500 is close to from the driving wheel setting, and is located the position that transmission chain 300 exited annular 210, so, first adjusting device 400 only need follow the less distance of upper and lower direction removal with second adjusting device 500, can realize changeing around radial regulation.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. A connector, comprising:

the sliding groove is provided with a first opening, and the distance between the sliding groove and a first groove wall of the first opening and the first opening is gradually increased along the extending direction of the sliding groove;

the rolling part is embedded in the sliding groove, the diameter of the rolling part is larger than the width of the first opening, part of the rolling part extends out of the main body through the first opening, and the rolling part can slide along the extending direction, wherein the rolling part which slides to the first position is in a locking state relative to the main body, and the rolling part which slides to the second position can roll relative to the main body;

the first connecting part is connected to one end of the main body;

and the second connecting part is connected to the other end, opposite to the main body, of the main body and is used for being rotatably connected with the first connecting part of the adjacent connecting piece.

2. The connector of claim 1, wherein the first opening is located laterally of the body.

3. A connector according to claim 2, wherein the body has two said runners, one on each side of the body.

4. A connecting member according to any one of claims 1 to 3, wherein the first end of the slide groove is formed with a second opening on the main body in the extending direction, the second opening having a diameter smaller than that of the rolling portion.

5. A connecting member according to any one of claims 1 to 3, further comprising a block piece, wherein a second end of the chute is formed with a third opening on the main body in the extending direction, the third opening having a diameter not smaller than that of the rolling portion, the block piece being attached to the main body and blocking the third opening.

6. Drive chain, characterized in that it comprises a plurality of links according to any one of claims 1 to 5, which are in turn rotatably connected.

7. The transmission chain according to claim 6, further comprising a rotating shaft, wherein the first connecting portion has a first rotating shaft hole, the second connecting portion comprises two parallel connecting plates, the connecting plates have a second rotating shaft hole, a gap is formed between the two connecting plates, the first connecting portion is located in the gap adjacent to the connecting member, and the rotating shaft is inserted into the first rotating shaft hole and the two second rotating shaft holes.

8. Drive module, its characterized in that includes:

the drive chain of claim 6 or 7;

the transmission wheels are provided with annular grooves arranged along the circumferential direction, the transmission chains are wound on the transmission wheels, and the groove walls of the annular grooves can be in contact with the rolling parts to drive the rolling parts to slide so as to drive the transmission chains to move in a single direction through the rolling parts located at the first positions;

and the power device is used for driving at least one driving wheel to rotate.

9. The drive module of claim 8, wherein lateral groove walls of the ring groove are adapted to contact the rolling portion.

10. A continuously variable transmission, as claimed in claim 9, wherein said drive module comprises two said drive wheels, one of said drive wheels being connected to said power unit to act as a drive wheel and the other of said drive wheels acting as a driven wheel;

the first adjusting device is used for adjusting the rotating radius of the transmission chain on the driving wheel;

the second adjusting device is used for adjusting the rotating and winding radius of the transmission chain on the driven wheel;

the change trend of the rotating radius of the transmission chain on the driving wheel is opposite to that of the rotating radius on the driven wheel.

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