A linear drag mechanism and a linear drive device

Abstract

The present invention relates to the technical field of linear drive equipment, and in particular to a linear drag mechanism and a linear drive device, wherein the linear drag mechanism comprises a driving component, a belt, a clamping component, a drag block, a linear slider and a linear guide rail, wherein the driving component can drive the belt to rotate, and the belt can be clamped and connected with the drag block through the clamping component, and the linear slider is fixed on the drag block, and the linear slider can slide along the linear guide rail, and the linear guide rail is parallel to the belt. The rotation of the belt can drive the drag block to make linear motion, and the follower mechanism can be connected to the drag block, so as to make linear motion with the drag block, and the cooperation of the linear guide rail and the linear slider as a constraint can make the movement of the drag block and the follower mechanism more stable, and the structure is simple, easy to implement, and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of linear drive equipment, and in particular to a linear drag mechanism and a linear drive equipment. Background Art

[0002] In the field of mechanical drive equipment, linear drag mechanisms are often used. The linear drag mechanisms provide a driving force in a fixed direction to the follower mechanism, so that the follower mechanism can perform linear unidirectional motion or linear reciprocating motion in a certain direction. However, most of the linear drag mechanisms in the prior art have relatively complex structures and high production costs. Therefore, there is an urgent need for a linear drag mechanism and a linear drive device with a simple structure and low production cost to solve the above technical problems. Summary of the invention

[0003] The purpose of the present invention is to provide a linear drag mechanism and a linear drive device to solve the technical problems of complex structure and high production cost in the prior art.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A linear drag mechanism comprises a driving assembly, a belt, a clamping assembly, a drag block, a linear slider and a linear guide rail, wherein the driving assembly can drive the belt to rotate, the belt can be clamped and connected to the drag block through the clamping assembly, the linear slider is fixed on the drag block, the linear slider can slide along the linear guide rail, and the linear guide rail is parallel to the belt.

[0006] As an optimal technical solution for the linear drag mechanism, the drag block includes a connecting plate and a clamping plate vertically connected to the connecting plate, the linear slider is fixed on the connecting plate, and the belt can be clamped on the clamping plate through the clamping assembly.

[0007] As an optimal technical solution for the linear dragging mechanism, the clamping plate includes a first clamping plate and a second clamping plate which are spaced apart, and a slope is provided on one end of the second clamping plate facing the first clamping plate; the clamping assembly includes a clamping shaft and a driving member, the clamping shaft is placed on the slope, the belt is located between the clamping shaft and the first clamping plate, the driving member can drive the clamping shaft to move along the slope, and the clamping shaft has a first position for clamping the belt on the first clamping plate and a second position for releasing the belt from the first clamping plate.

[0008] As an optimal technical solution for the linear dragging mechanism, the driving member is a clamping bolt, a protrusion is provided at the end of the second clamping plate facing the first clamping plate, the protrusion is located on the side of the inclined surface relatively close to the first clamping plate, the protrusion is provided with a threaded hole on the side facing the inclined surface, a through hole is provided on the clamping shaft, and the tail end of the clamping bolt passes through the through hole and is threadedly connected to the threaded hole.

[0009] As an optimal technical solution for the linear dragging mechanism, two inclined surfaces are provided at one end of the second clamping plate facing the first clamping plate, and the two inclined surfaces are symmetrically arranged on both sides of the protrusion, and threaded holes are provided on both sides of the protrusion, each threaded hole corresponds to a clamping bolt, and each inclined surface corresponds to a clamping shaft.

[0010] As a preferred technical solution of the linear drag mechanism, the upper end surface of the protrusion is a curved surface.

[0011] As a preferred technical solution of the linear drag mechanism, the linear slider and the clamping plate are located on the same side of the connecting plate.

[0012] As a preferred technical solution of the linear drag mechanism, the driving assembly includes a driving structure, a driving wheel and a driven wheel, the belt is wound around the driving wheel and the driven wheel, and the driving structure can drive the driving wheel to rotate.

[0013] As a preferred technical solution for the linear drag mechanism, the driving structure is a motor.

[0014] A linear drive device comprises a follower mechanism and a linear drag mechanism as described in any one of the above items, wherein the follower mechanism is connected to the drag block.

[0015] Beneficial effects of the present invention:

[0016] The linear drag mechanism provided by the present invention includes a driving component, a belt, a clamping component, a drag block, a linear slider and a linear guide rail. The driving component can drive the belt to rotate, and the belt can be clamped and connected with the drag block through the clamping component. A linear slider is fixed on the drag block, and the linear slider can slide along the linear guide rail, and the linear guide rail is parallel to the belt. The rotation of the belt can drive the drag block to make a linear motion, and the follower mechanism can be connected to the drag block, so as to make a linear motion with the drag block, and the cooperation of the linear guide rail and the linear slider as a constraint can make the movement of the drag block and the follower mechanism more stable, and the structure is simple, easy to implement, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the linear drag mechanism of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the linear drag mechanism of the present invention. Figure 2 .

[0019] In the figure:

[0020] 10-belt; 20-clamping assembly; 21-clamping shaft; 22-clamping bolt; 30-drag block; 31-connecting plate; 32-first clamping plate; 33-second clamping plate; 331-inclined surface; 332-bump; 40-linear slider; 50-linear guide rail. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and implementation methods. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0025] like Figure 1 and Figure 2 As shown, the present invention provides a linear drag mechanism, including a driving assembly, a belt 10, a clamping assembly 20, a drag block 30, a linear slider 40 and a linear guide rail 50. The driving assembly can drive the belt 10 to rotate, and the belt 10 can be clamped and connected with the drag block 30 through the clamping assembly 20. The drag block 30 is fixed with a linear slider 40, and the linear slider 40 can slide along the linear guide rail 50, and the linear guide rail 50 is parallel to the belt 10. The rotation of the belt 10 can drive the drag block 30 to make a linear motion, and the follower mechanism can be connected to the drag block 30, so as to make a linear motion with the drag block 30, and the cooperation of the linear guide rail 50 and the linear slider 40 as a constraint can make the movement of the drag block 30 and the follower mechanism more stable, and the structure is simple, easy to implement, and the cost is low.

[0026] Specifically, the drag block 30 includes a connecting plate 31 and a clamping plate vertically connected to the connecting plate 31, the linear slider 40 is fixed on the connecting plate 31, and the belt 10 can be clamped on the clamping plate through the clamping assembly 20. Through the arrangement of the drag block 30, the overall structure distribution is clearer and more reasonable. Preferably, the linear slider 40 and the clamping plate are located on the same side of the connecting plate 31 to improve the compactness of the structure.

[0027] The clamping plate includes a first clamping plate 32 and a second clamping plate 33 which are spaced apart, and a slope 331 is provided at one end of the second clamping plate 33 facing the first clamping plate 32; the clamping assembly 20 includes a clamping shaft 21 and a driving member, the clamping shaft 21 is placed on the slope 331, the belt 10 is located between the clamping shaft 21 and the first clamping plate 32, the driving member can drive the clamping shaft 21 to move along the slope 331, and the clamping shaft 21 has a first position for clamping the belt 10 on the first clamping plate 32 and a second position for releasing the belt 10 from the first clamping plate 32. It can be understood that when the clamping shaft 21 moves along the inclined surface 331 toward the first clamping plate 32, the distance between the clamping shaft 21 and the first clamping plate 32 gradually decreases, and when it decreases to a certain value, the belt 10 can be pressed against the first clamping plate 32; when the clamping shaft 21 moves along the inclined surface 331 toward the direction away from the first clamping plate 32, the distance between the clamping shaft 21 and the first clamping plate 32 gradually increases, so that the belt 10 can be released from the first clamping plate 32. The arrangement of the clamping plate and the clamping assembly 20 makes the overall structure clearer and more reasonable.

[0028] The driving member is a clamping bolt 22. A protrusion 332 is provided at one end of the second clamping plate 33 facing the first clamping plate 32. The protrusion 332 is located on a side of the inclined surface 331 relatively close to the first clamping plate 32. A threaded hole is provided on the side of the protrusion 332 facing the inclined surface 331. A through hole is provided on the clamping shaft 21. The tail end of the clamping bolt 22 passes through the through hole and is threadedly connected with the threaded hole. When the bolt is screwed into the threaded hole, the clamping shaft 21 can be driven to move along the inclined surface 331 in a direction close to the first clamping plate 32. When the bolt is screwed out of the threaded hole, the clamping shaft 21 can be driven to move along the inclined surface 331 in a direction away from the first clamping plate 32. The operation is simple and easy to implement.

[0029] Preferably, two inclined surfaces 331 are provided at one end of the second clamping plate 33 facing the first clamping plate 32, and the two inclined surfaces 331 are symmetrically arranged on both sides of the protrusion 332, and threaded holes are provided on both sides of the protrusion 332, each threaded hole corresponds to a clamping bolt 22, and each inclined surface 331 corresponds to a clamping shaft 21. By providing two inclined surfaces 331 and two sets of clamping assemblies 20, the belt 10 can be more firmly clamped to the first clamping plate 32, and the belt 10 and the first clamping plate 32 can be prevented from being disengaged during movement.

[0030] Preferably, the upper end surface of the protrusion 332 is an arc surface, so as to prevent the protrusion 332 from scratching the belt 10 and extend the service life of the belt 10.

[0031] The driving assembly includes a driving structure, a driving wheel and a driven wheel (not shown in the figure), and the belt 10 is wound around the driving wheel and the driven wheel, and the driving structure can drive the driving wheel to rotate. Optionally, the driving structure is a motor; or the driving structure can also be a hand crank, etc.

[0032] The present invention also provides a linear drive device, including a follower mechanism and the linear dragging mechanism as described above, wherein the follower mechanism is connected to the dragging block 30, and the linear dragging mechanism can drive the follower mechanism to perform linear motion, which has a simple structure, is easy to implement, and has a low cost.

[0033] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A linear drag mechanism, characterized in that: The invention comprises a driving component, a belt (10), a clamping component (20), a drag block (30), a linear slider (40) and a linear guide rail (50), wherein the driving component can drive the belt (10) to rotate, the belt (10) can be clamped and connected with the drag block (30) through the clamping component (20), the linear slider (40) is fixed on the drag block (30), the linear slider (40) can slide along the linear guide rail (50), and the linear guide rail (50) is parallel to the belt (10); The drag block (30) comprises a connecting plate (31) and a pressing plate vertically connected to the connecting plate (31), the linear slider (40) is fixed on the connecting plate (31), and the belt (10) can be pressed against the pressing plate through the pressing assembly (20); The clamping plate comprises a first clamping plate (32) and a second clamping plate (33) which are arranged at intervals, and a slope (331) is arranged on one end of the second clamping plate (33) facing the first clamping plate (32); the clamping assembly (20) comprises a clamping shaft (21) and a driving member, the clamping shaft (21) is placed on the slope (331), the belt (10) is located between the clamping shaft (21) and the first clamping plate (32), the driving member can drive the clamping shaft (21) to move along the slope (331), and the clamping shaft (21) has a first position for clamping the belt (10) on the first clamping plate (32) and a second position for releasing the belt (10) from the first clamping plate (32); The driving assembly comprises a driving structure, a driving wheel and a driven wheel, the belt (10) is wound around the driving wheel and the driven wheel, and the driving structure can drive the driving wheel to rotate.

2. The linear drag mechanism according to claim 1, characterized in that: The driving member is a clamping bolt (22), and a protrusion (332) is provided at one end of the second clamping plate (33) facing the first clamping plate (32), and the protrusion (332) is located on the side of the inclined surface (331) relatively close to the first clamping plate (32), and the protrusion (332) is provided with a threaded hole on the side facing the inclined surface (331), and a through hole is provided on the clamping shaft (21), and the tail end of the clamping bolt (22) passes through the through hole and is threadedly connected to the threaded hole.

3. The linear drag mechanism according to claim 2, characterized in that: Two inclined surfaces (331) are provided at one end of the second clamping plate (33) facing the first clamping plate (32), and the two inclined surfaces (331) are symmetrically arranged on both sides of the protrusion (332), and threaded holes are opened on both side surfaces of the protrusion (332), each threaded hole corresponds to a clamping bolt (22), and each inclined surface (331) corresponds to a clamping shaft (21).

4. The linear drag mechanism according to claim 2 or 3, characterized in that: The upper end surface of the protrusion (332) is a curved surface.

5. The linear drag mechanism according to any one of claims 1 to 3, characterized in that: The linear slider (40) and the pressing plate are located on the same side of the connecting plate (31).

6. The linear drag mechanism according to claim 1, characterized in that: The driving structure is a motor.

7. A linear drive device, characterized in that: It comprises a follow-up mechanism and a linear dragging mechanism as claimed in any one of claims 1 to 6, wherein the follow-up mechanism is connected to the dragging block (30).

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