CN214933253U - Retractable synchronizing wheel - Google Patents

Abstract

The utility model discloses a retractable synchronizing wheel, which belongs to the technical field of synchronizing wheels and comprises a wheel body, wherein a first tooth shoulder disc and a second tooth shoulder disc are symmetrically arranged at two axial ends of the synchronizing wheel, the first tooth shoulder disc is provided with a plurality of first unit teeth along the outline of the first tooth shoulder disc, the second tooth shoulder disc is provided with a plurality of second unit teeth which are connected with the first unit teeth in a sliding way along the outline of the second tooth shoulder disc, the first unit teeth and the second unit teeth are coaxially and alternatively distributed, the first unit teeth are respectively provided with a first guide groove and a first guide strip along two axial sides, two sides of the second unit teeth are respectively provided with a second guide strip which is clamped and matched with the first guide strip, one end of the first unit teeth is provided with a threaded hole, the threaded hole is connected with an adjusting rod in a threaded way, one end of the adjusting rod is a threaded end, the other end is a smooth end, the smooth end runs through the second tooth disc and is connected with the second tooth shoulder disc in a rotating way, the utility model has the advantages of simple structure, smooth adjustment of the tooth surface width and convenient operation.

Description

Retractable synchronizing wheel

Technical Field

The utility model relates to a hold-in range technical field specifically is a retractable synchronizing wheel.

Background

The synchronous wheel is generally made of steel, aluminum alloy, cast iron, brass and the like, and the inner hole of the synchronous wheel is provided with a circular hole, a D-shaped hole, a conical hole and the like. The synchronous belt wheel transmission consists of a closed annular rubber belt with equidistant teeth on the inner peripheral surface and a corresponding belt wheel. The synchronizing wheel has the advantages of accurate transmission, stable transmission, high transmission efficiency, convenient maintenance, large speed ratio range, no pollution, normal work in places with severe pollution and working environment, and the like, but the traditional synchronizing wheel is a belt wheel with fixed size, and when the synchronous belt with other widths needs to be replaced, the corresponding synchronizing wheel needs to be replaced at the same time.

Therefore, a person skilled in the relevant technical field improves this, for example, a chinese patent publication No. CN210593828U proposes "a retractable synchronous pulley", which includes a working ring, a first pulley is slidably sleeved on an outer wall of the middle of the working ring, a first connecting block is fixedly welded on one side of the first pulley close to the working ring, second pulleys are equidistantly disposed on two sides of the first pulley, a second connecting block is fixedly welded on one side of the second pulley close to the working ring, one sides of the first connecting block and the second connecting block are both rotatably connected with a threaded rod through a bearing, one end of the threaded rod far away from the first connecting block is both in threaded connection with the second connecting block, a driven wheel is fixedly sleeved on an outer wall of the middle of the threaded rod, and the driven wheel is engaged with driving wheels symmetrically disposed. The utility model discloses the characteristics that need not change the synchronizing wheel when can satisfy the change hold-in range.

However, the technical solution in this document still has disadvantages, such as easy jamming when moving the connecting block, and complicated structure, which is difficult to implement on a small synchronizing wheel.

Based on this, the utility model designs a retractable synchronizing wheel to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a retractable synchronizing wheel to solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: a retractable synchronizing wheel comprises a wheel body, wherein a first gear shoulder disc and a second gear shoulder disc are symmetrically arranged at two axial ends of the synchronizing wheel, a plurality of first unit teeth are arranged on one side, close to the second gear shoulder disc, of the first gear shoulder disc in a surrounding mode along the outline of the first gear shoulder disc, a plurality of second unit teeth are arranged on one side, close to the first gear shoulder disc, of the second gear shoulder disc in a surrounding mode along the outline of the second gear shoulder disc, the first unit teeth and the second unit teeth are coaxially and alternately distributed, the first unit teeth are in sliding connection with the second unit teeth, first guide grooves and first guide strips are respectively arranged on the two axial sides of the synchronizing wheel along the axial direction, second guide strips in clamping fit with the first guide grooves and second guide grooves in clamping fit with the first guide strips are respectively arranged on two axial sides of the second unit teeth along the axial direction of the synchronizing wheel, and threaded holes are formed in one end, far away from the first gear shoulder disc, of the first unit teeth, the threaded hole is in threaded connection with an adjusting rod, one end of the adjusting rod is a threaded end, the other end of the adjusting rod is a smooth end, and the smooth end penetrates through the second tooth shoulder disc and is in rotating connection with the second tooth shoulder disc.

Preferably, the adjusting rod penetrates through the second gear shoulder plate and then is fixedly connected with a pinion, the pinion is meshed with a bull gear which is rotatably connected to the second gear shoulder plate, and a handle is arranged on one side, far away from the second gear shoulder plate, of the bull gear.

Preferably, first tooth shoulder dish middle part fixedly connected with pivot, pivot and first unit tooth fixed connection, pivot and second unit tooth sliding connection, the outer wall of pivot between two first unit teeth is equipped with the third guide way, the third guide way distributes and communicates the pivot both ends along pivot length direction, second unit tooth bottom surface be equipped with third guide way joint complex third gib block.

Preferably, first guide way and second guide way are the recess of semicircle form for inside sunken cross-section, second gib block and second gib block are the sand grip of semicircle form for outside outstanding cross-section, the third guide way is inside sunken rectangle recess, the third gib block is outside outstanding rectangle sand grip.

Preferably, one end, far away from the first tooth shoulder plate, of the second tooth shoulder plate is fixedly connected with a cylindrical protective cover in a threaded mode, an opening of the protective cover covers the pinion and the gearwheel towards the second tooth shoulder plate, a round hole is formed in the middle of the protective cover, and the handle penetrates through the round hole.

Compared with the prior art, the beneficial effects of the utility model are that:

when the hold-in range of changing is different with original hold-in range width, rotate the handle on the gear wheel, can adjust the width of synchronizing wheel flank of tooth, need not dismantle, change the synchronizing wheel, simplify the hold-in range and change the process, reduce artifical working strength.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of a portion of the first unit tooth of the present embodiment;

FIG. 3 is a side view of the first unit tooth of the present embodiment;

FIG. 4 is a schematic view of a portion of the second unit tooth of the present embodiment;

FIG. 5 is a side view of the second unit tooth of the present embodiment;

fig. 6 is a schematic structural diagram of the highlighting shield of the present embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a first gear shoulder disk; 11. a first unit tooth; 111. a first guide bar; 112. a first guide groove; 113. a threaded hole; 12. a rotating shaft; 121. a third guide groove; 122. a shaft hole; 2. a second shoulder plate; 21. a second unit tooth; 211. a second guide bar; 212. a second guide groove; 213. a third guide bar; 22. an adjusting rod hole; 3. a pinion gear; 4. a bull gear; 41. a handle; 5. adjusting a rod; 6. a shield.

Detailed Description

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

Referring to fig. 1-6, the present invention provides a technical solution: a retractable synchronizing wheel comprises a wheel body, a synchronizing wheel shaft 12 is symmetrically and fixedly connected with a first gear shoulder plate 1 and a second gear shoulder plate 2 at two ends, one side of the first gear shoulder plate 1 close to the second gear shoulder plate 2 is fixedly connected with a plurality of first unit teeth 11 along the contour of the first gear shoulder plate 1 in a surrounding manner, one side of the second gear shoulder plate 2 close to the first gear shoulder plate 1 is fixedly connected with a plurality of second unit teeth 21 along the contour of the second gear shoulder plate 2 in a surrounding manner, the first unit teeth 11 and the second unit teeth are coaxially and alternately distributed, the first unit teeth 11 are in sliding connection with the second unit teeth 21, the first unit teeth 11 are respectively provided with a first guide groove 112 and a first guide strip 111 along two sides of the synchronizing wheel shaft 12 in the direction, the second unit teeth 21 are respectively and fixedly connected with a second guide strip 211 in clamping fit with the first guide groove 112 and provided with a second guide strip 212 in clamping fit with the first guide strip 111 along two sides of the synchronizing wheel shaft 12 in the direction, one end of the first unit tooth 11, which is far away from the first tooth shoulder plate 1, is provided with a threaded hole 113, the threaded hole 113 is in threaded connection with an adjusting rod 5, one end of the adjusting rod 5 is a threaded end, the other end of the adjusting rod is a smooth end, and the smooth end penetrates through the second tooth shoulder plate 2 and is in rotational connection with the second tooth shoulder plate.

Preferably, the adjusting rod 5 penetrates through the second shoulder plate 2 and then is fixedly connected with a pinion 3, the pinion 3 is meshed with a gearwheel 4 which is rotatably connected to the second shoulder plate 2, the gearwheel 4 is far away from a side fixedly connected with a handle 41 of the second shoulder plate 2, in the embodiment, the adjusting rod 5 is rotatably connected to the second shoulder plate 2 through a bearing, the gearwheel 4 is rotatably connected with the second shoulder plate 2 through a bearing, when the handle 41 is rotated, the gearwheel 4 rotates to drive the pinion 3 to rotate, the pinion 3 drives the adjusting rod 5 to rotate, the adjusting rod 5 moves outwards or inwards under the action of threads, and therefore the distance between the first shoulder plate 1 and the second shoulder plate 2 is adjusted.

Preferably, a rotating shaft 12 is fixedly connected to the middle of the first tooth shoulder disk 1, the rotating shaft 12 is fixedly connected to the first unit teeth 11, the rotating shaft 12 is slidably connected to the second unit teeth 21, a third guide groove 121 is formed in an outer wall of the rotating shaft 12 between the two first unit teeth 11, the third guide grooves 121 are distributed along the length direction of the rotating shaft 12 and are communicated with two ends of the rotating shaft 12, a third guide strip 213 in clamping fit with the third guide groove 121 is fixedly connected to the bottom surface of the second unit teeth 21, in this embodiment, the length of the rotating shaft 12 is equal to that of the first unit teeth 11, the bottom surface of the second unit teeth 21 is enclosed into a cylindrical shape and is matched with the rotating shaft 12, and the third guide groove 121 and the third guide strip 213 are in clamping fit to guide the movement of the first unit teeth 11 and the second unit teeth 21 in the axial direction, and reduce the radial jitter.

Preferably, the first guide groove 112 and the second guide groove 212 are recessed grooves having semicircular cross sections, the second guide strip 211 and the second guide strip 211 are protruding ribs having semicircular cross sections, the third guide groove 121 is a recessed rectangular groove, and the third guide strip 213 is a protruding rectangular rib.

Preferably, the second tooth shoulder dish 2 is kept away from one end screw thread fixed connection cylindrical shield 6 of first tooth shoulder dish 1, and 6 openings of shield cover pinion 3 and gear wheel 4 towards second tooth shoulder dish 2, and a round hole has been seted up at 6 middle parts of shield, and handle 41 passes the round hole, and in this embodiment, operating personnel can be protected to shield 6, prevents that operating personnel from being cliied by the gear, and shield 6 has certain dustproof effect simultaneously.

One specific application of this embodiment is:

firstly, when the synchronous belt is replaced, the handle 41 is only needed to be shaken to drive the large gear 4, the large gear 4 drives the small gear 3 to enable the adjusting rod 5 to rotate, and the adjusting rod 5 is screwed out of the threaded hole 113 or screwed into the threaded hole 113 under the action of the threads, so that the distance between the first tooth shoulder plate 1 and the second tooth shoulder plate 2 is adjusted, the tooth face width is adjusted, and the width of the synchronous belt is adapted.

To sum up, the utility model discloses the width of the regulation flank of tooth that can be convenient can play and simplify the operation of changing the hold-in range, reduces artificial effect.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a retractable synchronizing wheel, includes the wheel body, its characterized in that: the synchronous pulley is characterized in that a first gear shoulder disc (1) and a second gear shoulder disc (2) are symmetrically arranged at two axial ends of the synchronous pulley, a plurality of first unit teeth (11) are arranged on one side, close to the second gear shoulder disc (2), of the first gear shoulder disc (1) in a surrounding mode along the outline of the first gear shoulder disc (1), a plurality of second unit teeth (21) are arranged on one side, close to the first gear shoulder disc (1), of the second gear shoulder disc (2) in a surrounding mode along the outline of the second gear shoulder disc (2), the first unit teeth (11) and the second unit teeth (21) are coaxially and alternately distributed, the first unit teeth (11) are in sliding connection with the second unit teeth (21), first guide grooves (112) and first guide strips (111) are respectively arranged on two sides, in the axial direction, of the synchronous pulley, of the first unit teeth (112) and second guide strips (211) in clamping fit with the first guide grooves (112) are respectively arranged on two sides, in the axial direction of the synchronous pulley, and second unit teeth (21) are respectively provided with second guide strips in clamping fit with the first guide strips (111) in a clamping fit with the first guide strips in a clamping fit with the two sides of the synchronous pulley in the axial direction The first unit tooth (11) is far away from one end of the first tooth shoulder plate (1) and is provided with a threaded hole (113), the threaded hole (113) is connected with the adjusting rod (5) in a threaded mode, one end of the adjusting rod (5) is a threaded end, the other end of the adjusting rod is a smooth end, and the smooth end penetrates through the second tooth shoulder plate (2) and is connected with the second tooth shoulder plate in a rotating mode.

2. The retractable synchronizing wheel according to claim 1, wherein: the adjusting rod (5) penetrates through the second shoulder plate (2) and then is fixedly connected with a small gear (3), the small gear (3) is meshed with a large gear (4) which is rotatably connected to the second shoulder plate (2), and a handle (41) is arranged on one side, away from the second shoulder plate (2), of the large gear (4).

3. The retractable synchronizing wheel according to claim 2, wherein: first tooth shoulder dish (1) middle part fixedly connected with pivot (12), pivot (12) and first unit tooth (11) fixed connection, pivot (12) and second unit tooth (21) sliding connection, pivot (12) are equipped with third guide way (121) in the outer wall between two first unit teeth (11), third guide way (121) distribute and communicate pivot (12) both ends along pivot (12) length direction, second unit tooth (21) bottom surface is equipped with and connects complex third guide strip (213) with third guide way (121).

4. The retractable synchronizing wheel according to claim 1, wherein: first guide way (112) and second guide way (212) are the recess that semicircle form for inside sunken and cross-section, second guide strip (211) and second guide strip (211) are the sand grip that semicircle form for outside outstanding and cross-section, third guide way (121) are inside sunken rectangle recess, third guide strip (213) are outside outstanding rectangle sand grip.

5. The retractable synchronizing wheel according to claim 1, wherein: one end thread fixed connection cylindrical guard shield (6) that first tooth shoulder dish (1) was kept away from in second tooth shoulder dish (2), pinion (3) and gear wheel (4) are covered towards second tooth shoulder dish (2) to guard shield (6) opening, guard shield (6) middle part is equipped with a round hole, handle (41) pass the round hole.

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