CN210593828U - Telescopic synchronous belt pulley - Google Patents

Abstract

The utility model discloses a retractable synchronous pulley, including the work circle, the middle outer wall of work circle slides and has cup jointed first band pulley, one side fixed welding that first band pulley is close to the work circle has first connecting block, the both sides equidistance of first band pulley is provided with the second band pulley, one side fixed welding that the second band pulley is close to the work circle has the second connecting block, one side of first connecting block and second connecting block all rotates through the bearing and is connected with the threaded rod, the one end that first connecting block was kept away from to the threaded rod all with second connecting block threaded connection, the fixed coupling of middle outer wall of threaded rod has from the driving wheel, be connected with the action wheel that the symmetry set up from the driving wheel meshing. The utility model discloses simple structure, convenient to use, the band pulley that can stretch out and draw back the setting and can adapt to different width models reduces the use of the band pulley of different models, and then reduces the operation, reduces equipment input, practices thrift the cost, and the setting of easily dismantling, storage that can be convenient.

Description

Telescopic synchronous belt pulley

Technical Field

The utility model relates to a transmission technical field especially relates to a retractable synchronous pulley.

Background

Synchronous pulley, refers to and generally makes by material such as steel, aluminum alloy, cast iron, brass, its hole has the form of round hole, D-shaped hole, bell mouth etc.. 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, and has accurate transmission, no sliding in work and constant transmission ratio; the transmission is stable, the buffer and vibration reduction capabilities are realized, and the noise is low; the transmission efficiency is high and can reach 0.98, and the energy-saving effect is obvious; the maintenance is convenient, no lubrication is needed, and the maintenance cost is low; the speed ratio range is large, generally can reach 10, the linear velocity can reach 50m/s, and the power transmission range is large and can reach several watts to several hundred kilowatts; the transmission mechanism can be used for long-distance transmission, and the center distance can reach more than 10 m; the device has no pollution, and can work normally in places where pollution is not allowed and the working environment is severe. However, the synchronous pulleys with the existing structures are generally belt pulleys with fixed sizes, when single production is needed, the original belt pulleys need to be replaced, then the belt pulleys needed at present are replaced, the whole process is complex, the working strength is high, and the purchase cost is increased due to the multiple belt pulleys.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the prior art exists can not adapt to different belts, and the retractable synchronous pulley who provides.

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

a retractable synchronous pulley comprises a working ring, wherein a first belt pulley is sleeved on the middle outer wall of the working ring in a sliding manner, a first connecting block is fixedly welded on one side, close to the working ring, of the first belt pulley, a second belt pulley is arranged on two sides of the first belt pulley at equal intervals, a second connecting block is fixedly welded on one side, close to the working ring, of the second belt pulley, one sides of the first connecting block and the second connecting block are respectively connected with a threaded rod through bearing rotation, one end, far away from the first connecting block, of the threaded rod is respectively connected with the second connecting block through threads, a driven wheel is fixedly sleeved on the middle outer wall of the threaded rod, the driven wheel is meshed with a symmetrically arranged driving wheel, a rotating rod is fixedly sleeved in the middle of the driving wheel, one end, close to the first connecting block, of the rotating rod is connected, and one end of the connecting block is fixedly welded with the working ring, a sliding groove is arranged in the working ring, first limiting blocks which are symmetrically arranged are fixedly welded on the inner wall of the sliding groove, one end of each first limiting block is fixedly connected with a spring, the other end of each spring is fixedly connected with a second limiting block, a connecting rod is fixedly sleeved in the middle of each second limiting block, the connecting rod is located in the sliding groove, and a working shaft is sleeved in the middle of the working ring.

Preferably, the both sides of work circle are rotated through the bearing and are connected with the stopper that the symmetry set up, and the stopper is connected with the action wheel meshing, the one end that the fixed block was kept away from to the rotary rod is through bolt fixedly connected with handle.

Preferably, the working ring is provided with moving grooves along the axial direction at equal intervals, the moving grooves are of rectangular structures, and the first connecting blocks and the second connecting blocks are both located in the moving grooves and are in sliding connection with the moving grooves.

Preferably, the first connecting block and the second connecting block both adopt rectangular structures, and the fixing blocks adopt hexagonal structures.

Preferably, a rotating groove is formed in the working ring, and the driving wheel is located in the rotating groove.

Preferably, the connecting block adopts a rectangular structure, connecting grooves are symmetrically arranged in the connecting block, the connecting grooves adopt a hexagonal structure, and the connecting grooves are matched with the fixing blocks.

The utility model has the advantages that:

1. the device comprises a working ring, a second connecting block, a threaded rod, a second belt wheel, a driven wheel, a driving wheel, a rotating rod, a working shaft, a first connecting block, a first belt wheel, a connecting block, a connecting rod, a fixing block, a first limiting block, a spring and a second limiting block. The telescopic belt wheel can adapt to belt wheels of different width models, use of the belt wheels of different models is reduced, operation is reduced, working strength is reduced, equipment investment is reduced, and cost is saved.

2. Through second connecting block, threaded rod, second band pulley, first connecting block, first band pulley and spout for whole device is easily dismantled, and then storage that can be convenient reduces the occupation space of equipment.

Drawings

Fig. 1 is a schematic front sectional view of a retractable synchronous pulley according to the present invention;

fig. 2 is the utility model provides a schematic diagram of a left side view section of retractable synchronous pulley

FIG. 3 is the utility model provides a A department of retractable synchronous pulley enlarges the schematic diagram

FIG. 4 is the enlarged schematic diagram of the position B of the retractable synchronous pulley provided by the present invention

Fig. 5 is an enlarged schematic view of a position C of the retractable synchronous pulley provided by the present invention.

In the figure: 1 working ring, 2 second connecting blocks, 3 threaded rods, 4 second belt wheels, 5 driven wheels, 6 driving wheels, 7 rotating rods, 8 working shafts, 9 first connecting blocks, 10 first belt wheels, 11 connecting blocks, 12 connecting rods, 13 fixing blocks, 14 first limiting blocks, 15 springs and 16 second limiting blocks.

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.

Referring to fig. 1-5, a retractable synchronous pulley comprises a working ring 1, a first pulley 10 is slidably sleeved on the middle outer wall of the working ring 1, a first connecting block 9 is fixedly welded on one side of the first pulley 10 close to the working ring 1, second pulleys 4 are equidistantly arranged on two sides of the first pulley 10, a second connecting block 2 is fixedly welded on one side of the second pulley 4 close to the working ring 1, one sides of the first connecting block 9 and the second connecting block 2 are rotatably connected with a threaded rod 3 through bearings, one end of the threaded rod 3 far away from the first connecting block 9 is in threaded connection with the second connecting block 2, a driven wheel 5 is fixedly sleeved on the middle outer wall of the threaded rod 3, the driven wheel 5 is engaged and connected with symmetrically arranged driving wheels 6, a rotating rod 7 is sleeved on the middle of the driving wheel 6, one end of the rotating rod 7 close to the first connecting block 9 is rotatably connected with a fixing, a fixed block 13 is connected with a connecting block 11 in a sliding manner, one end of the connecting block 11 is fixedly welded with a working ring 1, a sliding groove is arranged in the working ring 1, first limiting blocks 14 which are symmetrically arranged are fixedly welded on the inner wall of the sliding groove, one end of each first limiting block 14 is fixedly connected with a spring 15, the other end of each spring 15 is fixedly connected with a second limiting block 16, a connecting rod 12 is fixedly sleeved in the middle of each second limiting block 16, the connecting rod 12 is positioned in the sliding groove, a working shaft 8 is sleeved in the middle of the working ring 1, two sides of the working ring 1 are rotatably connected with symmetrically arranged limiting blocks through bearings, the limiting blocks are meshed with a driving wheel 6, one end of a rotating rod 7, far away from the fixed block 13, is fixedly connected with a handle through bolts, the working ring 1 is provided with moving grooves at equal intervals along the axial direction, the moving grooves are of a, and with shifting chute sliding connection, first connecting block 9 and second connecting block 2 all adopt the rectangle structure, and fixed block 13 adopts the hexagon structure, are provided with the rotating groove in the work circle 1, and action wheel 6 is located the rotating groove, and connecting block 11 adopts the rectangle structure, and connecting block 11 internal symmetry is provided with the spread groove, and the spread groove adopts the hexagon structure, and the spread groove cooperatees with fixed block 13.

In the embodiment, when the belt wheel is used, firstly, the threaded rod 3 is utilized to connect the first belt wheel 10 and the second belt wheel 4 with each other through the first connecting block 9 and the second connecting block 2, then the first connecting block 9 and the second connecting block 2 are connected in a clamping manner in the working ring through the moving groove, then the first belt wheel 10 and the second belt wheel 4 are moved, the first belt wheel 10 is positioned in the middle of the working ring 1, then the driving wheel 6 and the rotating rod 7 are installed after the limiting block is limited, then the fixing block 13 is clamped into the connecting groove, the fixing block 13 is propped against the connecting rod 12 to the inside of the first connecting block 9, then the first connecting block 9 and the first belt wheel 10 are fixed, then the working shaft 8 is fixedly sleeved in the middle of the working ring, the belt can work after being connected to the outer wall, then when the belt wheels of different models are replaced, the rotating rod 7 can be rotated by utilizing the handle to drive the rotation of the driving, quiet children drive the rotation of threaded rod 3, second connecting block 2 and the second band pulley 4 that then symmetry set up move like both sides, and then the flexible band pulley, not the time spent, unload action wheel 6, connecting rod 12 is kick-backed through spring 15 and is withdrawed, then slides and shift out first band pulley 10 and second band pulley 4, then lift each band pulley off in the rotation and then save, the utility model discloses simple structure, convenient to use, the setting that can stretch out and draw back can adapt to the band pulley of different width models, reduces the use of the band pulley of different models, and then reduces the operation, reduces equipment input, practices thrift the cost, and the setting of just easily dismantling, storage that can be convenient.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A retractable synchronous belt pulley comprises a working ring (1) and is characterized in that a first belt pulley (10) is slidably sleeved on the outer wall of the middle of the working ring (1), a first connecting block (9) is fixedly welded on one side, close to the working ring (1), of the first belt pulley (10), second belt pulleys (4) are arranged on two sides of the first belt pulley (10) in an equal distance mode, a second connecting block (2) is fixedly welded on one side, close to the working ring (1), of each second belt pulley (4), one sides of the first connecting block (9) and the second connecting block (2) are respectively connected with a threaded rod (3) in a rotating mode through bearings, one end, far away from the first connecting block (9), of each threaded rod (3) is connected with the second connecting block (2) in a threaded mode, a driven wheel (5) is fixedly sleeved on the outer wall of the middle of each threaded rod (3), and driving wheels (6) which are symmetrically arranged are meshed, the fixed rotary rod (7) that has cup jointed in the centre of action wheel (6), rotary rod (7) are close to the one end of first connecting block (9) and are rotated through the bearing and are connected with fixed block (13), fixed block (13) sliding connection has connecting block (11), and the one end and the work circle (1) fixed welding of connecting block (11), be provided with the sliding tray in the work circle (1), the inner wall fixed welding of sliding tray has first stopper (14) that the symmetry set up, the one end fixedly connected with spring (15) of first stopper (14), and the other end fixedly connected with second stopper (16) of spring (15), connecting rod (12) have been cup jointed to the centre of second stopper (16) is fixed, and connecting rod (12) are located the sliding tray, the centre of work circle (1) has cup jointed working shaft (8).

2. The retractable synchronous pulley according to claim 1, wherein the two sides of the working ring (1) are rotatably connected with symmetrically arranged limit blocks through bearings, the limit blocks are engaged with the driving wheel (6), and the end of the rotating rod (7) far away from the fixed block (13) is fixedly connected with a handle through a bolt.

3. The retractable synchronous pulley according to claim 1, wherein the working ring (1) is provided with moving grooves at equal intervals along the axial direction, the moving grooves are rectangular, and the first connecting block (9) and the second connecting block (2) are both located in the moving grooves and are slidably connected with the moving grooves.

4. A telescopic synchronous pulley according to claim 1, characterized in that said first connecting block (9) and said second connecting block (2) are of rectangular configuration and said fixed block (13) is of hexagonal configuration.

5. The retractable synchronous pulley according to claim 1, characterized in that a rotating groove is provided in the working ring (1), and the driving pulley (6) is located in the rotating groove.

6. The telescopic synchronous pulley according to claim 1, wherein the connecting block (11) is rectangular, and the connecting block (11) is symmetrically provided with connecting grooves which are hexagonal and matched with the fixing block (13).

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