CN217707545U

CN217707545U - Stroke multiplication mechanism

Info

Publication number: CN217707545U
Application number: CN202221920212.8U
Authority: CN
Inventors: 孙武
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-11-01
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to the technical field of product transmission, in particular to a stroke multiplication mechanism, wherein a support plate is arranged on a base in a sliding way along a first direction; the first rack is arranged on the base and extends along a first direction; the second rack is arranged on the carrier plate and extends along the first direction; the driving assembly is fixed on the base, and the output end of the driving assembly can reciprocate between an initial position and a terminal position along a first direction; the length dimension of the first rack is smaller than that of the second rack and is equal to the one-way stroke dimension of the driving assembly; the gear is rotatably arranged at the output end of the driving component; the gear is meshed with the second rack and can be meshed with the first rack; the gear is separated from the first rack in the state that the output end of the driving assembly is at the initial position and the terminal position. By means of the arrangement, the distance of the one-way stroke of the carrier plate is more than twice of the one-way stroke of the output end of the driving assembly, and the problem that the moving stroke of a product needs to be larger than that of the driving piece is solved.

Description

Stroke multiplication mechanism

Technical Field

The utility model relates to a product transmission technical field especially relates to a stroke multiplication mechanism.

Background

Linear motion is one of the most common modes of motion in the mechanical industry. In the production process of product, often can carry out sharp transmission with the product between two positions, generally, the driving pieces such as cylinder or electric putter are used commonly in the transport of the short distance of product drive, but under this drive mode, the removal stroke of product is unanimous with cylinder or electric putter's stroke, in the actual work process, it is less often to have driving piece mounted position, lead to the less condition of stroke of driving piece, therefore, the removal stroke that can appear the product need be greater than the problem of driving piece stroke, above-mentioned problem can't be solved to driven drive mode.

Therefore, it is necessary to develop a stroke multiplication mechanism to solve the problem that the product moving stroke needs to be larger than the stroke of the driving member during the short-distance conveying process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stroke multiplication mechanism to the removal stroke of solving the product needs to be greater than the problem of driving piece stroke.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a stroke multiplication mechanism, this stroke multiplication mechanism includes:

a base;

the support plate is arranged on the base in a sliding mode along a first direction;

the first rack is arranged on the base and extends along the first direction;

the second rack is arranged on the carrier plate and extends along the first direction;

the driving assembly is fixed on the base, and the output end of the driving assembly can reciprocate between an initial position and a terminal position along the first direction; the length dimension of the first rack is smaller than that of the second rack and is equal to the one-way stroke dimension of the driving assembly;

the gear is rotatably arranged at the output end of the driving assembly; the gear is meshed with the second rack and can be meshed with the first rack; the gear is separated from the first rack in the state that the output end of the driving assembly is at the initial position and the terminal position.

Preferably, the stroke multiplication mechanism further comprises a slide rail and a slide block, one of the slide rail and the slide block is arranged on the base, the other is arranged on the carrier plate, and the slide block is arranged on the slide rail in a sliding manner.

Preferably, the slide rail is equipped with two, the slider is equipped with at least two, two the slide rail parallel and the interval set up in the base, at least two the slider parallel and the interval is located the support plate.

Preferably, the number of the sliding blocks is at least four, and at least two sliding blocks are arranged on each sliding rail in a sliding mode.

Preferably, the base includes bottom plate and two curb plates, two the curb plate is located one side of bottom plate, and the interval sets up, first rack is located the bottom plate, and be located two between the curb plate.

Preferably, drive assembly includes flexible driving piece and connector, flexible driving piece is fixed in the base, the one end of connector with the output of flexible driving piece is connected, the other end with gear revolve connects.

Preferably, the connector includes the connecting seat and locates at the interval first board and the second board of connecting seat, the first board is equipped with first pinhole, the second board is equipped with the second pinhole, the center of gear is equipped with the perforation, the gear is located first board with between the second board, the round pin axle passes in proper order first pinhole the perforation with the second pinhole.

Preferably, the drive assembly further comprises a height increasing member, the height increasing member is arranged on the base, and the telescopic driving member is arranged on the height increasing member.

Preferably, the travel multiplication mechanism further comprises a limiting assembly, and the limiting assembly is used for limiting two limit positions of the carrier plate.

Preferably, the limiting assembly comprises a first limiting block and a second limiting block, and the first limiting block and the second limiting block are respectively arranged at two ends of the base and used for limiting two limiting positions of the carrier plate.

The beneficial effects of the utility model are that:

the utility model provides a stroke multiplication mechanism, which comprises a base, a support plate, a first rack, a second rack, a driving component and a gear, wherein the support plate is arranged on the base in a sliding way along a first direction; the first rack is arranged on the base and extends along a first direction; the second rack is arranged on the carrier plate and extends along the first direction; the driving component is fixed on the base, and the output end of the driving component can reciprocate between an initial position and a terminal position along a first direction; the length dimension of the first rack is smaller than that of the second rack and is equal to the one-way stroke dimension of the driving assembly; the gear is rotatably arranged at the output end of the driving component; the gear is meshed with the second rack and can be meshed with the first rack; the gear is separated from the first rack in the state that the output end of the driving assembly is at the initial position and the terminal position. By means of the arrangement of the first rack and the second rack, when the output end of the driving assembly moves, the gear can be driven to roll along the first rack, the second rack is driven to move relative to the first rack, and the moving distance is twice of the moving distance of the gear; in addition, because the length dimension of the first rack is smaller than that of the second rack and is equal to the one-way stroke dimension of the driving assembly, when the output end moves to the terminal position, the gear is separated from the first rack, at the moment, the gear loses the constraint of the first rack, and the carrier plate can continue to move for a certain distance due to inertia; when the output end of the driving assembly starts to move to the initial position, the gear and the first rack are in an engaged state, the next driving process is carried out, the moving speed of the carrier plate is twice of the moving speed of the output end of the driving assembly, when the output end of the driving assembly moves to the initial position, the gear is separated from the first rack, the gear loses the restraint of the first rack again at the moment, due to inertia, the carrier plate can continue to move for a distance, therefore, the distance of the one-way stroke of the carrier plate exceeds twice of the one-way stroke of the output end of the driving assembly, and the problem that the moving stroke of a product needs to be larger than that of the driving piece is solved.

Drawings

Fig. 1 is a schematic structural diagram of a stroke multiplication mechanism in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the connection head and the gear in the embodiment of the present invention.

In the figure:

x, a first direction;

100. a slide rail; 200. a slider;

1. a base; 11. a base plate; 12. a side plate;

2. a carrier plate; 3. a first rack; 4. a second rack;

5. a drive assembly; 51. a telescopic driving member; 52. a connector; 521. a connecting seat; 522. a first plate; 523. a second plate; 53. a pin shaft; 54. heightening pieces;

6. a gear.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

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 accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1-2, the present embodiment provides a travel multiplication mechanism, which includes a base 1, a carrier 2, a first rack 3, a second rack 4, a driving assembly 5, and a gear 6, wherein the carrier 2 is slidably disposed on the base 1 along a first direction X; the first rack 3 is arranged on the base 1 and extends along a first direction X; the second rack 4 is arranged on the carrier plate 2 and extends along the first direction X; the driving assembly 5 is fixed on the base 1, and the output end of the driving assembly 5 can reciprocate between an initial position and a terminal position along a first direction X; the length dimension of the first rack 3 is smaller than that of the second rack 4 and is equal to the one-way stroke dimension of the driving component 5; the gear 6 is rotatably arranged at the output end of the driving component 5; the gear 6 is meshed with the second rack 4 and can be meshed with the first rack 3; in the process that the output end of the driving assembly 5 moves from the initial position to the terminal position, the gear 6 is meshed with the first rack 3, and the gear 6 is separated from the first rack 3 when the output end of the driving assembly 5 is at the initial position and the terminal position. By means of the arrangement of the first rack 3 and the second rack 4, when the output end of the driving assembly 5 moves, the gear 6 can be driven to roll along the first rack 3, and the second rack 4 is driven to move relative to the first rack 3, and the moving distance is twice as long as the moving distance of the gear 6; in addition, because the length of the first rack 3 is smaller than the length of the second rack 4 and equal to the one-way stroke of the driving component 5, when the output end moves to the terminal position, the gear 6 is separated from the first rack 3, at this time, the gear 6 loses the constraint of the first rack 3, and the carrier plate 2 continues to move for a certain distance due to inertia; when the output end of the driving assembly 5 starts to move to the initial position, the gear 6 and the first rack 3 are in an engaged state, in the following driving process, the moving speed of the carrier plate 2 is twice of the moving speed of the output end of the driving assembly 5, when the output end of the driving assembly 5 moves to the initial position, the gear 6 is separated from the first rack 3, at the moment, the gear 6 loses the constraint of the first rack 3 again, and due to inertia, the carrier plate 2 can continue to move for a distance, so that the distance of the one-way stroke of the carrier plate 2 exceeds twice of the one-way stroke of the output end of the driving assembly 5, and the problem that the moving stroke of a product needs to be larger than that of a driving piece is solved. Wherein a product can be placed on the carrier plate 2.

Regarding the sliding connection between the carrier plate 2 and the base 1, in this embodiment, it is preferable that the stroke multiplication mechanism further includes a slide rail 100 and a slide block 200, one of the slide rail 100 and the slide block 200 is disposed on the base 1, the other is disposed on the carrier plate 2, and the slide block 200 is slidably disposed on the slide rail 100. Of course, in other embodiments, a sliding slot may be provided on the base 1, and the carrier plate 2 may slide in the sliding slot.

In order to improve the sliding stability of the carrier plate 2, in this embodiment, optionally, two slide rails 100 are provided, at least two slide blocks 200 are provided, the two slide rails 100 are disposed in parallel and spaced apart from each other on the base 1, and the at least two slide blocks 200 are disposed in parallel and spaced apart from each other on the carrier plate 2. Further, at least four sliding blocks 200 are provided, and at least two sliding blocks 200 are slidably provided on each sliding rail 100 at intervals. Above-mentioned setting up can make the operation of support plate 2 more steady, and then can transport the product that the quality is bigger.

Optionally, the base 1 includes a bottom plate 11 and two side plates 12, the two side plates 12 are disposed on one side of the bottom plate 11 and are spaced apart from each other, and the first rack 3 is disposed on the bottom plate 11 and is located between the two side plates 12. Wherein the second toothed rack 4 is also located between the two side plates 12. With the help of the arrangement of the structure, the driving force can be transmitted to the second gear 6 more balance in the moving process of the gear 6, and the stable sliding of the carrier plate 2 is further facilitated.

In order to connect the driving assembly 5 and the gear 6, in this embodiment, the driving assembly 5 includes a telescopic driving member 51 and a connector 52, the telescopic driving member 51 is fixed on the base 1, one end of the connector 52 is connected to an output end of the telescopic driving member 51, and the other end is rotatably connected to the gear 6. Wherein, the telescopic driving member 51 may be a cylinder or an electric push rod.

In this embodiment, regarding the structure of the connection head 52, specifically, the connection head 52 includes a connection seat 521 and a first plate 522 and a second plate 523 that are disposed at an interval on the connection seat 521, the first plate 522 is provided with a first pin hole, the second plate 523 is provided with a second pin hole, a gear 6 is disposed at the center of the gear 6, the gear 6 is located between the first plate 522 and the second plate 523, and the pin shaft 53 sequentially passes through the first pin hole, the gear hole and the second pin hole. The arrangement enables the stress of the gear 6 to be more balanced, and the phenomenon that the gear is inclined to cause the gear to be jammed between the pin shafts 53 is avoided. Preferably, a deep groove ball bearing is provided between the pin shaft 53 and the gear 6.

In this embodiment, the driving assembly 5 further comprises a height increasing member 54, the height increasing member 54 is disposed on the base 1, and the telescopic driving member 51 is disposed on the height increasing member 54. By means of the heightening part 54, the installation position of the telescopic driving part 51 can be adjusted, so that the output end of the telescopic driving part 51 can be smoothly meshed with the first rack 3 after being connected with the gear 6.

Optionally, the travel multiplier mechanism further comprises a limiting component for limiting two limit positions of the carrier plate 2. The distance between the two extreme positions of the carrier plate 2 is more than twice the length dimension of the first toothed rack 3. The setting of spacing subassembly restricts the displacement range of support plate 2, and then makes the stroke scope of support plate 2 control more, is convenient for improve the accuracy of product transmission.

Specifically, the limiting assembly comprises a first limiting block and a second limiting block, and the first limiting block and the second limiting block are respectively arranged at two ends of the base 1 and used for limiting two limit positions of the carrier plate 2. The carrier plate 2 is stopped by the two limiting blocks, so that the structure is simple and the cost is low. Further, spacing subassembly still includes first bolster and second bolster, and first stopper and second stopper are located respectively to first bolster and second bolster, and first bolster and second bolster are used for the butt respectively to be located two extreme position's support plate 2. The arrangement of the buffer member can prevent the carrier plate 2 from being damaged due to strong impact, thereby prolonging the service life of the carrier plate 2. Specifically, first bolster and second bolster all can be the rubber pad. Of course, in another embodiment, an opto-electronic switch may also be provided for detecting the carrier plate 2 reaching the two extreme positions.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A travel multiplier mechanism, comprising:

a base (1);

the carrier plate (2) is arranged on the base (1) in a sliding manner along a first direction (X);

a first rack (3), wherein the first rack (3) is arranged on the base (1) and extends along the first direction (X);

a second rack (4), wherein the second rack (4) is arranged on the carrier plate (2) and extends along the first direction (X);

a drive assembly (5), said drive assembly (5) being fixed to said base (1), an output end of said drive assembly (5) being reciprocally movable along said first direction (X) between an initial position and a final position; the length dimension of the first rack (3) is smaller than that of the second rack (4) and is equal to the one-way stroke dimension of the driving assembly (5);

the gear (6) is rotatably arranged at the output end of the driving component (5); the gear (6) is meshed with the second rack (4) and can be meshed with the first rack (3); the gear (6) is separated from the first rack (3) when the output end of the driving component (5) is in the initial position and the terminal position.

2. The stroke multiplication mechanism of claim 1, further comprising a slide rail (100) and a slide block (200), wherein one of the slide rail (100) and the slide block (200) is disposed on the base (1), and the other is disposed on the carrier plate (2), and the slide block (200) is slidably disposed on the slide rail (100).

3. The stroke multiplication mechanism of claim 2, wherein there are two slide rails (100), and at least two slide blocks (200) are provided, the two slide rails (100) are disposed in parallel and spaced apart from each other on the base (1), and the at least two slide blocks (200) are disposed in parallel and spaced apart from each other on the carrier plate (2).

4. Travel multiplier mechanism according to claim 3, characterized in that said slides (200) are provided with at least four, at least two slides (200) being slidingly provided per slide (100).

5. The stroke multiplication mechanism of claim 1, wherein the base (1) comprises a bottom plate (11) and two side plates (12), the two side plates (12) are arranged on one side of the bottom plate (11) at intervals, and the first rack (3) is arranged on the bottom plate (11) and located between the two side plates (12).

6. The stroke multiplication mechanism of claim 1, wherein the driving assembly (5) comprises a telescopic driving member (51) and a connector (52), the telescopic driving member (51) is fixed on the base (1), one end of the connector (52) is connected with an output end of the telescopic driving member (51), and the other end of the connector is rotatably connected with the gear (6).

7. The stroke multiplication mechanism of claim 6, wherein the connection head (52) comprises a connection seat (521) and a first plate (522) and a second plate (523) which are arranged on the connection seat (521) at intervals, the first plate (522) is provided with a first pin hole, the second plate (523) is provided with a second pin hole, a gear hole is arranged in the center of the gear (6), the gear (6) is located between the first plate (522) and the second plate (523), and a pin shaft (53) sequentially passes through the first pin hole, the gear hole and the second pin hole.

8. The stroke multiplication mechanism of claim 6, wherein the drive assembly (5) further comprises a height increasing member (54), the height increasing member (54) being provided on the base (1), the telescopic drive member (51) being provided on the height increasing member (54).

9. Travel multiplier mechanism according to any of claims 1 to 8, characterized in that it further comprises a limiting assembly for limiting the two extreme positions of the carrier plate (2).

10. The stroke multiplication mechanism of claim 9, wherein the limiting assembly comprises a first limiting block and a second limiting block, the first limiting block and the second limiting block are respectively disposed at two ends of the base (1) for limiting two limiting positions of the carrier plate (2).