CN219057528U - Tensioning and holding mechanism and transmission device - Google Patents

Abstract

The application relates to the technical field of semiconductor testing, and provides a tensioning and holding mechanism and a transmission device. The tensioning and retaining mechanism is used for being arranged on a transmission piece which performs rotary motion, and the transmission piece is provided with a first end and a second end which are opposite and are arranged at intervals; the tensioning and retaining mechanism comprises a first fixed arm, a second fixed arm and a locking piece: the first fixed arm is connected to the first end of the transmission piece; the second fixed arm is connected to the second end of the transmission piece, and is connected with the first fixed arm; the locking member is used for locking the first fixing arm and the second fixing arm, and the locking member is configured to drive the first fixing arm and the second fixing arm to approach or separate in response to external force driving. The tensioning retaining mechanism that this application provided not only can satisfy the tensioning to chain or hold-in range, is convenient for moreover operate in narrow and small space, reduces the installation space who occupies.

Description

Tensioning and holding mechanism and transmission device

Technical Field

The application relates to the technical field of semiconductor testing, in particular to a tensioning and holding mechanism and a transmission device.

Background

In performing semiconductor testing, it is necessary to transport the semiconductor chips to the corresponding stations using a transport mechanism. The tensioning degree of the conveying chain in the conveying mechanism can directly influence the conveying stability.

Currently, there are two ways of tensioning: one is to add a position-adjustable driven wheel to tension the conveyor chain or timing belt by position adjustment of the driven wheel, e.g., close to compression or far from tension; another structure capable of adjusting the center distance between the driving wheel and the driven wheel is additionally arranged. However, either way, it takes up additional installation space and is not adjustable or even usable in a smaller space.

Disclosure of Invention

Accordingly, it is necessary to provide a tension maintaining mechanism that can not only satisfy tension on a chain or a timing belt, but also facilitate work in a small space and reduce the occupied installation space.

A tension maintaining mechanism for mounting to a driving member for rotational movement, the driving member having opposed and spaced apart first and second ends; the tension maintaining mechanism comprises a first fixed arm, a second fixed arm and a locking piece: the first fixed arm is connected to the first end of the transmission piece; the second fixed arm is connected to the second end of the transmission piece, and the second fixed arm is connected with the first fixed arm; the locking member is used for locking the first fixing arm and the second fixing arm, and the locking member is configured to drive the first fixing arm and the second fixing arm to approach or separate from each other in response to external force driving.

The tensioning and maintaining mechanism is connected with the first end and the second end of the transmission piece through the first fixing arm and the second fixing arm respectively, and locks the first fixing arm and the second fixing arm through the locking piece, so that the assembly of the whole tensioning and maintaining mechanism relative to the transmission piece is met. Meanwhile, the locking piece can drive the first fixing arm and the second fixing arm to approach or separate from each other, so that the first fixing arm drives the first end of the transmission piece and the second fixing arm drives the second end of the transmission piece, and the two ends approach or separate from each other, so that the tensioning degree of the transmission piece is adjusted. Moreover, the arrangement is such that the tension holding mechanism is equivalent to being a part of the transmission member, and satisfies the continuity of the transmission member in the circumferential direction thereof, and can realize the operation in a narrow space, reducing the occupied installation space.

In one embodiment, the locking member includes a guide post and a fixing post, one end of the guide post is at least penetrating through the first fixing arm, and one end of the fixing post, facing the guide post, is penetrating through the second fixing arm and is connected with the guide post; the fixed column is configured to pull the guide column to move toward one side of the fixed column in response to an external force drive, and the guide column pushes the first fixed arm to approach the second fixed arm.

It will be appreciated that with the cooperation of the guide post and the fixing post, not only is the connection between the two fixing arms satisfied, but also the approach between the two fixing arms is satisfied to achieve tensioning adjustment.

In one embodiment, a limiting boss is configured at one end of the guide post, which is away from the fixed post; the locking piece further comprises a first elastic piece, the first elastic piece is sleeved on the guide post, one end of the first elastic piece is abutted to the limiting boss, and the other end of the first elastic piece is abutted to the first fixing arm.

That is, the first elastic member is arranged to apply an acting force to the guide post by using the limiting boss, so that the connection reliability between the guide post and the first fixing arm is improved.

In one embodiment, the first fixing arm is provided with a first mounting hole for the guide post to pass through, and the first mounting hole is arranged in a stepped hole, so that one end of the first mounting hole, which faces the second fixing arm, is provided with a first limiting end face; the aperture of the first mounting hole is larger than the diameter of the guide post; the first elastic piece is sleeved on the guide post, part of the first elastic piece is accommodated in the first mounting hole, and the first elastic piece is abutted between the limiting boss and the first limiting end face; the guide post passes through the first mounting hole and is connected with the fixed post through the first fixed arm.

It will be appreciated that by this arrangement the protection of the first resilient element is enhanced and the force exerted by the first resilient element on the first fixing arm and the fixing post is satisfied.

In one embodiment, the first and second fixed arms each comprise a base, a clamping plate, and a fastener; one side of the base is provided with a clamping groove, the clamping groove is used for accommodating a first end of a corresponding transmission piece or a second end of the transmission piece, the clamping plate body is pressed on one side of the base with the clamping groove, and the fastening piece is used for detachably connecting the clamping plate body relative to the base.

It is understood that the mounting space is provided for the transmission member through the arrangement of the clamping groove, so that the assembly of the first fixing arm and the second fixing arm relative to the transmission member is realized by utilizing the seat body, the clamping plate body and the fastener.

In one embodiment, the seat in the first fixing arm is configured with an avoidance port, the seat in the second fixing arm is configured with a guide portion, the guide portion is disposed on a side wall of the avoidance port, and the guide portion can slide in the avoidance port.

That is, the movement between the first fixed arm and the second fixed arm is guided by the interfitting of the escape opening and the guide portion.

In one embodiment, the locking member comprises a web, a first locking cap and a second locking cap; one end of the connecting plate is connected with the first fixed arm, and the other end of the connecting plate is connected with the second fixed arm; the first locking cap is connected to the first fixing arm so as to lock the connecting plate relative to the first fixing arm; the second locking cap is connected to the second fixing arm so as to lock the connecting plate relative to the second fixing arm; the second locking cap is configured to rotate around its own axis in response to an external force drive to drive the second fixing arm to move in the axial direction of the second locking cap.

It can be understood that the connection of the first fixing arm and the second fixing arm is realized by using the connecting plate, and the locking of the connecting plate relative to the two fixing arms is satisfied by using the first locking cap and the second locking cap, so that the assembly of the relative transmission piece is realized. And under the cooperation of second locking cap and second fixed arm, satisfy the regulation to driving medium tensioning degree.

In one embodiment, the locking member further includes a second elastic member, the second elastic member is sleeved on the second fixing arm, and the second elastic member abuts between the second locking cap and the connecting plate.

It can be appreciated that the arrangement of the second elastic member can always apply an acting force to the second locking cap and the connecting plate, so that the connection reliability between the connecting plate and the second fixing arm is improved.

In one embodiment, a notch is formed on one side of the connecting plate, and the notch divides the connecting plate into two limiting parts; one of the limiting parts is sleeved on the first fixed arm, and the other limiting part is sleeved on the second fixed arm; the first fixing arm and the second fixing arm are respectively provided with a second limiting end face, and the second limiting end faces are used for being abutted with the corresponding limiting parts.

That is, the notch is arranged so as to form a drawing strip matched with the fixed arm on the connecting plate, so that the connecting plate is assembled relative to the first fixed arm and the second fixed arm; meanwhile, through the arrangement of the second limiting end face, a bearing surface is formed, and the corresponding limiting parts are clamped in a matched mode with the first locking cap and the second locking cap.

The utility model also provides a transmission device with higher transmission stability.

A transmission device comprises a tensioning and holding mechanism, a transmission piece, a driving wheel and a driven wheel; the transmission piece is wound between the driving wheel and the driven wheel, and the tensioning and maintaining mechanism is connected between the first end and the second end of the transmission piece.

The transmission device can utilize the cooperation of the transmission piece and the tensioning and holding mechanism to perfect the vacancy of the transmission piece and reduce the installation space of the tensioning and holding mechanism, and realize the adjustment of the online tensioning degree while meeting the requirement of power transmission.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a first schematic view of a tension maintaining mechanism provided in an embodiment of the present application mounted to a driving member;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a first partial cross-sectional view of the tension maintaining mechanism provided in FIG. 2;

FIG. 4 is a second partial cross-sectional view of the tension maintaining mechanism provided in FIG. 2;

FIG. 5 is a second schematic view of a tension maintaining mechanism provided in an embodiment of the present application mounted to a driving member;

FIG. 6 is a partial enlarged view at B in FIG. 5;

FIG. 7 is a partial schematic view of the tension maintaining mechanism provided in FIG. 5 mounted to a transmission;

FIG. 8 is an enlarged view of a portion of FIG. 7 at C;

FIG. 9 is a first partial schematic view of a transmission provided in an embodiment of the present application;

fig. 10 is a second partial schematic view of the transmission device according to the embodiment of the present application.

Reference numerals: 10. a first fixed arm; 20. a second fixed arm; 30. a locking member; 31. a connecting plate; 32. a first locking cap; 33. a second locking cap; 34. a second elastic member; 35. a guide post; 36. fixing the column; 37. a first elastic member; 100. a tension maintaining mechanism; 111. a square column section; 112. a cylindrical section; 113. a base; 113a, a first seat; 113b, a second seat; 114. clamping the plate body; 200. a transmission member; 201. a first end; 202. a second end; 300. a driving wheel; 311. a first limiting member; 312. a second limiting member; 351. a limit boss; 352. a threaded hole; 400. driven wheel; 500. a frame; 600. a driving mechanism; 1001. a first mounting hole; 1011. the first limiting end face; 1111. the second limiting end face; 1131. an avoidance port; 1132. a guide part; 1133. a clamping groove; 2001. a second mounting hole; 3101. and (5) a notch.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used in the description of the present application for purposes of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact of the first feature with the second feature, or an indirect contact of the first feature with the second feature via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The term "and/or" as used in the specification of this application includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 4, the present utility model provides a tension maintaining mechanism 100 for tensioning a transmission member 200 that performs a turning motion. The driving member 200 has opposite and spaced apart first and second ends 201, 202, and the tension maintaining mechanism 100 is coupled between the first and second ends 201, 202 to adjust the degree of tension of the driving member by pulling either the first or second ends 201, 202 to move. The transmission member 200 may be a transmission belt or a transmission chain. The following description will take the transmission member 200 as an example of a transmission chain.

Referring to fig. 1-4, in some embodiments, the tension maintaining mechanism 100 includes a first fixed arm 10, a second fixed arm 20, and a locking member 30, the first fixed arm 10 is connected to a first end 201 of the drive chain, the second fixed arm 20 is connected to a second end 202 of the drive chain, and the second fixed arm 20 is connected to the first fixed arm 10; the locking member 30 locks the first and second fixed arms 10 and 20, and the locking member 30 is configured to urge the first and second fixed arms 10 and 20 toward or away from each other in response to an external force.

Specifically, there is a space between the first end 201 and the second end 202 of the drive chain to provide an assembly space for the tension maintaining mechanism 100. The first fixing arm 10 and the second fixing arm 20 correspond to the first end 201 and the second end 202 on the transmission chain respectively, and the locking piece 30 is used for locking the first fixing arm 10 and the second fixing arm 20 relative to the transmission chain, so that the assembly of the whole tensioning and holding mechanism 100 relative to the transmission chain is satisfied. In this way, the tension maintaining mechanism 100 can be used as a part of the transmission chain along the rotation direction of the transmission chain, and fills the gap of the transmission chain, so that the installation space occupied by the tension maintaining mechanism 100 alone is reduced. Moreover, since the locking member 30 can urge the first fixing arm 10 and the second fixing arm 20 toward or away from each other by the external force, the transmission chain is tensioned or relaxed, and thus the adjustment of the tensioning degree of the transmission chain is achieved. In summary, the tensioning and holding mechanism 100 provided in this embodiment not only can satisfy tensioning adjustment of a transmission chain, but also can realize operation in a narrow space and reduce an occupied installation space.

The tensioning manner of the tension maintaining mechanism 100 is exemplified below.

As shown in fig. 2-4, in some embodiments, the locking member includes a guide post 35 and a fixing post 36, where one end of the guide post 35 is at least penetrating through the first fixing arm 10, and one end of the fixing post 36, which faces the guide post 35, is penetrating through the second fixing arm 20 and connected to the guide post 35. The fixing post 36 is configured to pull the guide post 35 to move toward the fixing post 36 side in response to an external force drive, and the guide post 35 pushes the first fixing arm 10 to approach the second fixing arm 20.

Specifically, after the first fixing arm 10 and the second fixing arm 20 are respectively connected with respect to the driving chain, a certain space exists between the first fixing arm 10 and the second fixing arm 20 due to the space between the first end and the second end of the driving chain. At this time, the first fixing arm 10 and the second fixing arm 20 are locked by the cooperation of the guide post 35 and the fixing post 36, so that the assembly of the tension maintaining mechanism 100 with respect to the transmission chain can be satisfied. Meanwhile, the fixed column 36 can also pull the guide column 35 to move, and the guide column 35 drives the first fixed arm 10 to synchronously move so as to meet the tensioning of the driving chain.

Referring to fig. 2-4, in actual use, the first fixing arm 10 and the second fixing arm 20 are respectively configured with a mounting hole, namely a first mounting hole 1001 and a second mounting hole 2001, one end of the guide post 35 passes through the first mounting hole 1001 and stretches into the second mounting hole 2001, one end of the guide post 35 stretching into the second mounting hole 2001 is configured with a threaded hole 352, and one end of the fixing post 36 stretches into the threaded hole 352 through the second mounting hole 2001 and is in threaded connection with the guide post 35. Therefore, when the fixing post 36 is screwed into the guide post 35, the guide post 35 can be applied with a force towards the second end of the transmission chain by using the screw action so as to pull the guide post 35 to move, and the guide post 35 can drive the first fixing arm 10 to move towards the direction close to the second fixing arm 20, so that the tensioning of the transmission chain is realized. When the fixing post 36 is unscrewed relative to the guide post 35, a force is applied to the guide post 35 towards the first end of the drive chain by the screw action to move the first and second fixing arms 10, 20 away from each other. Thus, the adjustment of the tensioning degree of the transmission chain can be satisfied. The depth of the threaded hole 352 is greater than the length of the fixed column 36 in the threaded hole 352, so as to reserve the screwing space of the fixed column 36 relative to the guide column 35.

With continued reference to fig. 2-4, further, a limiting boss 351 is configured at an end of the guide post 35 facing away from the fixing post 36. The limiting boss 351 is protruded outwards along the radial direction of the guide post 35, and the end face of the limiting boss 351 can be abutted against the first fixing arm 10 so as to drive the first fixing arm 10 to move when the guide post 35 moves. In other embodiments, the guide post 35 is configured as a stepped shaft, and the corresponding first mounting hole 1001 is configured as a stepped hole, and through the matching of the stepped structure, the guide post 35 drives the first fixing arm 10 to move under the action of the fixing post 36, so as to realize tensioning of the transmission chain.

Referring to fig. 2-4, in some specific embodiments, the locking member further includes a first elastic member 37, the first elastic member 37 is sleeved on the guide post 35, and one end of the first elastic member 37 abuts against the limiting boss 351, and the other end abuts against the first fixing arm 10. Specifically, an end of the guide post 35 facing away from the second fixing arm 20 can protrude from the first mounting hole 1001, and the limit boss 351 is located at an end of the guide post 35 protruding from the first mounting hole 1001. When the guide post 35 moves toward the second fixing arm 20 under the action of the fixing post 36, the limiting boss 351 presses the first elastic member 37, and the first elastic member 37 applies a force to the first fixing arm 10 to push the first fixing arm 10 to move toward the second fixing arm 20. Meanwhile, when the fixed column 36 is unscrewed relative to the guide column 35, the guide column 35 moves towards the side deviating from the fixed column 36, and at this time, the first elastic piece 37 is arranged to always apply force to the guide column 35 and the first fixed arm 10, so that the connection stability between the guide column 35 and the first fixed arm 10 is ensured while the tensioning degree adjustment is satisfied.

With continued reference to fig. 3 and 4, in a preferred embodiment, the first mounting hole 1001 is configured as a stepped hole, such that an end of the first mounting hole 1001 facing the second fixing arm 20 is configured with a first limiting end surface 1011. The aperture of the first mounting hole 1001 is larger than the diameter of the guide post 35, so that a gap exists between the guide post 35 and the hole wall of the first mounting hole 1001 to accommodate the first elastic member 37 sleeved on the guide post 35. Thus, the two ends of the first elastic member 37 are respectively abutted against the limiting boss 351 and the limiting end face. This arrangement not only protects the first elastic member 37, but also satisfies the urging force of the first elastic member 37 against the first fixing arm 10 and the fixing post 36.

Further, the first elastic member 37 employs a compression spring, preferably a rectangular spring. The rectangular spring has better elasticity, larger bearing capacity, fatigue resistance and longer service life.

Still further, the second mounting hole 2001 is also provided as a stepped hole, and includes a large-diameter section and a small-diameter section, the large-diameter section being provided with the guide post 35 in a penetrating manner, and the small-diameter section being provided with the fixing post 36 in a penetrating manner. In this arrangement, the bottom of the large-diameter section is used to limit the movement of the guide post 35 relative to the second fixing arm 20, i.e. to limit the tensioning degree of the drive chain, so as to avoid cracking or even breaking of the drive chain due to excessive force.

Referring to fig. 2-4, in this embodiment, the first fixing arm 10 and the second fixing arm 20 each include a base 113, a clamping plate 114, and a fastener, one side of the base 113 is configured with a clamping groove 1133, the clamping grooves 1133 on the two base 113 are respectively used for accommodating the first end and the second end of the corresponding transmission chain, the clamping plate 114 is pressed on one side of the base 113 with the clamping groove 1133, and the fastener is used for detachably linking the clamping plate 114 with respect to the base 113, so as to realize the assembly of the first fixing arm 10 and the second fixing arm 20 with respect to the transmission chain.

With reference to fig. 2 and 4, further, the seat 113 in the first fixing arm 10 is taken as a first seat 113a, the seat 113 in the second fixing arm 20 is taken as a second seat 113b, the first seat 113a and the second seat 113b are both L-shaped, the vertical edge of the first seat 113a is configured with a avoiding opening 1131 at one side facing away from the guide post 35, the vertical edge of the second seat 113b forms a guiding portion 1132, and when the first fixing arm 10 and the second fixing arm 20 are connected through the guide post 35 and the fixing post 36, the guiding portion 1132 can be accommodated at the avoiding opening 1131 and lean against the side wall of the avoiding opening 1131. When the adjustment of the tension degree of the drive chain is satisfied by the screw rotation between the fixing post 36 and the guide post 35, the guide portion 1132 can slide along the escape opening 1131 to guide the approaching and separating between the first fixing arm 10 and the second fixing arm 20.

With continued reference to fig. 2 and fig. 4, further, since the first seat 113a is provided with the avoidance opening 1131, the clamping groove 1133 located on the first seat 113a is communicated with the avoidance opening 1131, so as to ensure that the first end of the transmission chain has a larger connection contact area with the first seat 113a, and improve connection reliability. Meanwhile, since the guide portion 1132 is disposed on the second seat 113b, the extension length of the clamping groove 1133 disposed on the second seat 113b is smaller than that of the guide portion 1132, so that the second fixing arm 20 is reliably connected with the second end of the transmission chain, and meanwhile, the guide portion 1132 is ensured to have higher structural strength, and the problems of cracking and the like in the adjusting process and the using process of the transmission chain are not easy to occur.

Referring to fig. 5 and 6, in other embodiments, locking member 30 includes a web 31, a first locking cap 32, and a second locking cap 33. One end of the connecting plate 31 is connected to the first fixed arm 10, and the other end of the connecting plate 31 is connected to the second fixed arm 20. The first locking cap 32 is connected to the first fixing arm 10 to lock the connection plate 31 with respect to the first fixing arm 10; the second locking cap 33 is coupled to the second fixing arm 20 to lock the connection plate 31 with respect to the second fixing arm 20. Wherein the second locking cap 33 is configured to rotate about its own axis in response to an external force drive to move the second fixing arm 20 in the axial direction of the second locking cap 33.

Specifically, the first fixing arm 10 and the second fixing arm 20 are connected by the connecting plate 31, so that the notch 3101 of the transmission chain is perfected. By using the arrangement of the first locking cap 32 and the second locking cap 33, the locking of the connecting plate 31 with respect to the first fixing arm 10 and the second fixing arm 20 is satisfied, and the assembly of the tension maintaining mechanism 100 with respect to the drive chain is achieved. Meanwhile, the second locking cap 33 is constructed with a screw hole, the second fixing arm 20 is constructed with an external screw thread, and the second locking cap 33 is screw-coupled with the second fixing arm 20. When the second locking cap 33 is screwed against the second fixing arm 20, the second locking cap 33 exerts a pulling force on the second fixing arm 20 towards the side close to the first fixing arm 10 by using the screw force, so that pulling the second fixing arm 20 to move towards the side of the first fixing arm 10, the second fixing arm 20 can pull the second end 202 of the transmission chain to move in the same direction. At this time, the first end 201 of the drive chain is connected to the first fixed arm 10 and is in a stationary state. Thus, the tensioning of the transmission chain can be satisfied.

With continued reference to fig. 6, in actual use, a notch 3101 is formed on one side of the connecting plate 31, and the notch 3101 separates the connecting plate 31 into two limiting members. One limiting part is sleeved on the first fixed arm 10, and the other limiting part is sleeved on the second fixed arm 20. For convenience of description, the two limiting parts are respectively a first limiting part 311 and a second limiting part 312, the first limiting part 311 and the second limiting part 312 are respectively provided with mounting holes penetrating along the length direction of the transmission chain, the first limiting part 311 is sleeved on the first fixing arm 10 through the corresponding mounting holes, and then the first limiting part 311 and the first fixing arm 10 are locked by the first locking cap 32. The second limiting member 312 is sleeved on the second fixing arm 20 through a corresponding mounting hole, and then the second limiting member 312 and the second fixing arm 20 are locked by the second locking cap 33. In this way, the assembly of the connection plate 31 with respect to the first fixing arm 10 and the second fixing arm 20 can be achieved.

Wherein the notch 3101 is provided at the side of the connection plate 31 facing the drive chain. When the notch 3101 is cut in the connecting plate 31, the reserved first limiting member 311 and second limiting member 312 need to be ensured to have higher structural strength on the basis of meeting the connection with the first fixing arm 10 and the second fixing arm 20, so that the first limiting member and the second limiting member cannot be easily broken. At the same time, the range setting of notch 3101 also requires reduced interference with first locking cap 32 and second locking cap 33. Further, the connection plate 31 needs to have a large load force, and the avoidance from other structures needs to be considered when setting the extension length of the connection plate 31, so that too long is not preferable.

As shown in fig. 6-8, further, the first fixing arm 10 and the second fixing arm 20 are provided with a second limiting end surface 1111, and the second limiting end surface 1111 is used for abutting against a corresponding limiting component. That is, the second limiting end surface 1111 is provided to cooperate with the locking cap to enable the connection plate 31 to be assembled with respect to the first fixing arm 10 and the second fixing arm 20. Specifically, the first fixing arm 10 and the second fixing arm 20 each include a square column section 111 and a cylindrical section 112 connected to the square column section 111, and one end of the square column section 111 facing away from the cylindrical section 112 is connected to a transmission chain. The square column section 111 and the cylindrical section 112 are coaxially arranged, and the projection area of the square column section 111 along the axial direction of the square column section 111 is larger than the projection area of the cylindrical section 112 along the axial direction of the square column section 112, so that the end face of the square column section 111 forms the second limiting end face 1111. When the limiting component is sleeved on the corresponding fixing arm, one end of the limiting component, which is away from the locking cap, can be abutted against the corresponding second limiting end face 1111, and the limiting component is clamped between the square column section 111 and the locking cap by the locking cap.

Referring to fig. 6-8, in some specific embodiments, the locking member 30 further includes a second elastic member 34, the second elastic member 34 is sleeved on the second fixing arm 20, and the second elastic member 34 abuts between the second locking cap 33 and the connecting plate 31. Specifically, the second elastic member 34 is sleeved on the cylindrical section 112 on the second fixing arm 20, one end of the second elastic member 34 abuts against a side wall of the second limiting member 312, which is away from the square column section 111, and the other end of the second elastic member 34 abuts against the second locking cap 33. Therefore, the second elastic member 34 always has a force on the connection plate 31 and the second locking cap 33. When the second locking cap 33 is screwed, the second elastic element 34 can be extruded, and the second elastic element 34 applies the same-direction acting force to the second limiting part 312, so that the second limiting part 312 is pressed against the square column section 111, and the connection reliability is improved. Moreover, when the second locking cap 33 is unscrewed relative to the second fixing arm 20, the pressure borne by the second elastic member 34 is reduced, and the second elastic member can always abut between the second locking cap 33 and the second limiting member 312 when the second fixing arm 20 is separated relative to the first fixing arm 10, so as to improve the connection reliability between the connecting plate 31 and the second fixing arm 20. Wherein the second elastic member 34 adopts a compression spring.

With continued reference to fig. 6-8, in a preferred embodiment, the first fixing arm 10 is integrally formed with the first end 201 of the drive chain, and the second fixing arm 20 is integrally formed with the second end 202 of the drive chain. Through integrated into one piece's setting, the assembly integrality of this tensioning hold up mechanism 100 relative drive chain improves to the two constitute overall structure, on satisfying driven basis, can also online adjustment tensioning degree. Specifically, the first fixing arm 10 and the second fixing arm 20 may be a part of the transmission chain, and only the first end 201 and the second end 202 of the transmission chain need to be adapted to the arrangement requirements of the first fixing arm 10 and the second fixing arm 20.

Referring to fig. 9 and 10, an embodiment of the present utility model further provides a transmission device, which includes the tension maintaining mechanism 100, and further includes a transmission chain, a driving wheel 300 and a driven wheel 400, wherein the transmission chain is wound between the driving wheel 300 and the driven wheel 400, and the tension maintaining mechanism 100 is connected between the first end 201 and the second end 202 of the transmission chain. The transmission also includes a drive mechanism 600. In some embodiments, the driving mechanism 600 is in driving connection with the driving wheel 300 to drive the driving wheel 300 to rotate, and the driving wheel 300 drives the driven wheel 400 to rotate through a driving chain. In other embodiments, the driving mechanism 600 is connected to a driving chain to drive the driving chain to perform a rotation motion, and the driving chain drives the driving wheel 300 and the driven wheel 400 to rotate; in this embodiment, the drive mechanism 600 is attached to the side of the drive chain where the tension maintaining mechanism 100 is mounted, to save installation space.

Further, the driving device is mounted on a frame 500 for transportation of the semiconductor.

The pivotal movement of the drive chain is not a complete revolution, regardless of the connection of the drive mechanism, because the tension maintaining mechanism 100 is provided so as to be equivalent to a constraint on the pivotal movement path of the drive chain.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.

Claims (10)

1. A tension-maintaining mechanism for mounting to a driving member (200) for a rotary motion, characterized in that the driving member (200) has a first end (201) and a second end (202) arranged opposite and spaced apart; the tension holding mechanism (100) includes:

a first fixed arm (10) connected to a first end (201) of the transmission member (200);

a second fixed arm (20) connected to a second end (202) of the transmission member (200), and the second fixed arm (20) is connected to the first fixed arm (10); and

a locking member (30) for locking the first and second fixed arms (10, 20), and the locking member (30) is configured to urge the first and second fixed arms (10, 20) toward or away from each other in response to an external force.

2. The tension maintaining mechanism according to claim 1, wherein the locking member (30) comprises a guide post (35) and a fixing post (36), one end of the guide post (35) is at least penetrated through the first fixing arm (10), and one end of the fixing post (36) which faces the guide post (35) is penetrated through the second fixing arm (20) and is connected with the guide post (35);

the fixed column (36) is configured to pull the guide column (35) to move toward one side of the fixed column (36) in response to an external force drive, and the guide column (35) pushes the first fixed arm (10) to approach the second fixed arm (20).

3. The tension maintaining mechanism according to claim 2, characterized in that one end of the guide post (35) facing away from the fixed post (36) is configured with a limit boss (351);

the locking piece (30) further comprises a first elastic piece (37), the first elastic piece (37) is sleeved on the guide post (35), one end of the first elastic piece (37) is abutted to the limiting boss (351), and the other end of the first elastic piece is abutted to the first fixing arm (10).

4. A tension maintaining mechanism according to claim 3, wherein the first fixing arm (10) is configured with a first mounting hole (1001) for the guide post (35) to pass through, and the first mounting hole (1001) is provided in a stepped hole such that an end of the first mounting hole (1001) toward the second fixing arm (20) is configured with a first limit end face (1011); the aperture of the first mounting hole (1001) is larger than the diameter of the guide post (35);

the first elastic piece (37) is sleeved on the guide post (35), part of the first elastic piece (37) is accommodated in the first mounting hole (1001), and the first elastic piece (37) is abutted between the limit boss (351) and the first limit end face (1011);

the guide column (35) passes through the first fixing arm (10) through the first mounting hole (1001) and is connected with the fixing column (36).

5. The tension maintaining mechanism according to any one of claims 2 to 4, wherein the first fixing arm (10) and the second fixing arm (20) each include a seat body (113), a clamping plate body (114), and a fastener;

one side of the base body (113) is provided with a clamping groove (1133), the clamping groove (1133) is used for accommodating a corresponding first end (201) of the transmission piece (200) or a corresponding second end (202) of the transmission piece (200), the clamping plate body (114) is pressed on one side, with the clamping groove (1133), of the base body (113), and the fastening piece is used for detachably connecting the clamping plate body (114) relative to the base body (113).

6. The tension maintaining mechanism according to claim 5, wherein the seat body (113) in the first fixing arm (10) is configured with a relief port (1131), the seat body (113) in the second fixing arm (20) is configured with a guide portion (1132), the guide portion (1132) is abutted against a side wall provided to the relief port (1131), and the guide portion (1132) is slidable within the relief port (1131).

7. The tension maintaining mechanism according to claim 1, wherein the lock member (30) comprises:

a connecting plate (31), wherein one end of the connecting plate (31) is connected to the first fixed arm (10), and the other end of the connecting plate (31) is connected to the second fixed arm (20);

-a first locking cap (32) connected to said first fixed arm (10) to lock said connection plate (31) with respect to said first fixed arm (10); and

a second locking cap (33) connected to the second fixing arm (20) to lock the connection plate (31) with respect to the second fixing arm (20); the second locking cap (33) is configured to rotate about its own axis in response to an external force drive to bring about axial movement of the second fixing arm (20) along the second locking cap (33).

8. The tension maintaining mechanism according to claim 7, wherein the locking member (30) further comprises a second elastic member (34), the second elastic member (34) is sleeved on the second fixing arm (20), and the second elastic member (34) is abutted between the second locking cap (33) and the connecting plate (31).

9. The tension maintaining mechanism according to claim 7, wherein a notch (3101) is formed on one side of the connecting plate (31), the notch (3101) divides the connecting plate (31) into two limiting parts, one of the limiting parts is sleeved on the first fixing arm (10), and the other limiting part is sleeved on the second fixing arm (20);

the first fixing arm (10) and the second fixing arm (20) are respectively provided with a second limiting end surface (1111), and the second limiting end surfaces (1111) are used for being abutted with the corresponding limiting parts.

10. A transmission, characterized in that it comprises a transmission member (200), a driving wheel, a driven wheel, and a tension maintaining mechanism according to any one of claims 1 to 9;

the transmission member (200) is wound between the driving wheel and the driven wheel, and the tension maintaining mechanism (100) is connected between a first end (201) and a second end (202) of the transmission member (200).

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