Holding type synchronizing wheel

Abstract

The utility model discloses an enclasping type synchronizing wheel which is characterized in that a key groove is formed in an inner sleeve, an outer sleeve is fixedly connected to the outer surface of the inner sleeve, a chuck is fixedly connected to the outer surface of the outer sleeve, a tooth groove is formed in the outer surface of the outer sleeve, first cutting grooves are formed in the chuck and the inner sleeve, and second cutting grooves are formed in the inner sleeve. A second cutting groove is formed in the outer sleeve, a mounting groove is formed in the chuck, a threaded groove is formed in the chuck, the synchronous wheel is arranged on the surface of a rotating shaft in a sleeving mode, a first threaded rod is rotated, the first threaded rod is matched with a nut, and the first threaded rod rotates to reduce the distance between the end of the threaded rod and the nut; meanwhile, the distance between the first cutting grooves is reduced, the chuck is driven to fix the surface of the rotating shaft when the distance between the first cutting grooves is reduced, the synchronizing wheel is fixed to the surface of the rotating shaft, and the effects of preventing the synchronizing wheel and the shaft rod from slipping, reducing abrasion of the key groove and prolonging the service life of the synchronizing wheel are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous wheels, in particular to a clamping type synchronous wheel. Background Art

[0002] A synchronous pulley is a mechanical component used for transmission. It is often used to achieve power transmission and rotation between two shafts. The surface of the synchronous wheel is equipped with equally spaced teeth. When moving, the belt teeth mesh with the tooth grooves of the pulley to transmit motion and power. It is a meshing transmission, and thus has a gear transmission. It has the advantages of accurate transmission, no slippage during operation, a constant transmission ratio, smooth transmission, buffering and vibration reduction capabilities, low noise, high transmission efficiency, and obvious energy-saving effects. Therefore, it is widely used in automobiles, textiles, printing and packaging equipment, sewing equipment, and office equipment.

[0003] When installing the synchronous wheel, the synchronous wheel is sleeved on the rotating shaft and fixed on the rotating shaft by means of a threaded rod. The existing synchronous wheel is prone to slipping with the shaft rod during installation, resulting in wear of the keyway and affecting the service life. After searching, it was found that the technical solution provided by the utility model with application number CN202221682252.3 also has the above-mentioned problems. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and provides a clamping type synchronous wheel. The synchronous wheel is sleeved on the surface of a rotating shaft and the first threaded rod is rotated. Through the cooperation between the first threaded rod and the nut, the first threaded rod rotates to reduce the distance between the end of the threaded rod and the nut, and at the same time drives the distance between the first grooves to decrease. The reduction in the distance between the first grooves drives the chuck to fix the surface of the rotating shaft, so that the synchronous wheel is fixed to the surface of the rotating shaft, thereby preventing the synchronous wheel and the shaft rod from slipping, reducing the wear of the keyway, and increasing the service life of the synchronous wheel.

[0005] The utility model also provides the above-mentioned clamping type synchronous wheel, wherein the inner sleeve is provided with a keyway inside, the outer surface of the inner sleeve is fixedly connected with the outer sleeve, the outer surface of the outer sleeve is fixedly connected with a chuck, the outer surface of the outer sleeve is provided with a tooth groove, the chuck and the inner sleeve are both provided with a first groove inside, the outer sleeve is provided with a second groove inside, the chuck is provided with a mounting groove inside, the chuck is provided with a thread groove inside, the thread groove is threadedly connected with a first threaded rod inside, and the outer surface of the first threaded rod is threadedly connected with a nut;

[0006] A first slide groove is provided inside the inner sleeve, a second slide groove is provided inside the inner sleeve, a trapezoidal slider is slidably connected inside the first slide groove, a limiting block is fixedly connected to the side surface of the trapezoidal slider, a guide slider is slidably connected inside the trapezoidal slider, a connecting plate is fixedly connected to the side surface of the guide slider, a second threaded rod is threadedly connected to the internal thread of the connecting plate, a limiting ring is fixedly connected to the outer surface of the second threaded rod, and an annular limiting plate is rotatably connected to the outer surface of the limiting ring.

[0007] According to the clamping synchronous wheel, the outer surface of the nut is slidably connected to the mounting groove, and the outer surface of the first threaded rod is slidably connected to the mounting groove. The distance between the first cutting grooves can be reduced through the cooperation between the first threaded rod and the nut, so that the chuck is fixed to the outer surface of the rotating shaft.

[0008] According to the described clamping type synchronous wheel, the outer sleeve and the inner sleeve of the synchronous wheel are combined in a tight-fitting manner and fixed by welding.

[0009] According to the clamping synchronous wheel, the number of the tooth grooves is multiple and distributed in a circular array, the number of the mounting grooves is two and distributed left and right, and the motion and power are transmitted by meshing the belt teeth with the tooth grooves, thereby achieving an efficient transmission effect.

[0010] According to the clamping type synchronous wheel, the outer surface of the second threaded rod is rotatably connected to the annular limiting plate, and the side surface of the connecting plate is slidably connected to the trapezoidal sliding block.

[0011] According to the described clamping type synchronous wheel, the lower surface of the limit block is slidably connected to the first slide groove, and the side surface of the limit block is slidably connected to the second slide groove. The sliding connection between the limit block and the second slide groove can prevent the annular limit plate from detaching from the inner sleeve, thereby limiting the synchronous belt and achieving the effect of quickly installing and disassembling the annular limit plate.

[0012] According to the clamping type synchronous wheel, the lower surface of the trapezoidal sliding block is slidably connected to the annular limiting plate, and the side surface of the connecting plate is slidably connected to the first sliding groove.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is the overall structural diagram of a clamping type synchronous wheel of the utility model;

[0016] Figure 2 This is an exploded view of the overall structure of a clamping type synchronous wheel of the utility model;

[0017] Figure 3 This is a cross-sectional view of the overall structure of a clamping type synchronous wheel of the utility model;

[0018] Figure 4 for Figure 3 A schematic diagram of the enlarged structure in the middle.

[0019] Legend:

[0020] 1. Inner sleeve; 2. Keyway; 3. Outer sleeve; 4. Chuck; 5. Tooth groove; 6. First cut groove; 7. Second cut groove; 8. Mounting groove; 9. Thread groove; 10. First threaded rod; 11. Nut; 12. First slide groove; 13. Second slide groove; 14. Trapezoidal slider; 15. Limit block; 16. Guide slider; 17. Connecting plate; 18. Second threaded rod; 19. Limit ring; 20. Annular limit plate. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4 The utility model embodiment is a clamping type synchronous wheel, which includes an inner sleeve 1, a keyway 2 is provided inside the inner sleeve 1, an outer sleeve 3 is fixedly connected to the outer surface of the inner sleeve 1, the outer sleeve 3 of the synchronous wheel and the inner sleeve 1 are combined in a tight fit manner and welded and fixed, the outer surface of the outer sleeve 3 is fixedly connected to a chuck 4, the outer surface of the outer sleeve 3 is provided with a tooth groove 5, the number of the tooth grooves 5 is multiple and distributed in a circular array, the chuck 4 and the inner sleeve 1 are both provided with a first cutting groove 6, the outer sleeve 3 is provided with a second cutting groove 7, the chuck 4 is provided with a mounting groove 8, the number of the mounting grooves 8 is two and distributed left and right, the chuck 4 is provided with a threaded groove 9, the threaded groove 9 is threadedly connected with a first threaded rod 10, the outer surface of the first threaded rod 10 is movably connected to the mounting groove 8, the outer surface of the first threaded rod 10 is threadedly connected to a nut 11, and the outer surface of the nut 11 is slidably connected to the mounting groove 8.

[0023] The inner sleeve 1 is provided with a first slide groove 12, the inner sleeve 1 is provided with a second slide groove 13, the first slide groove 12 is slidably connected with a trapezoidal slider 14, the side surface of the trapezoidal slider 14 is fixedly connected with a limit block 15, the lower surface of the limit block 15 is slidably connected with the first slide groove 12, the side surface of the limit block 15 is slidably connected with the second slide groove 13, the inner part of the trapezoidal slider 14 is slidably connected with a guide slider 16, the side surface of the guide slider 16 is fixedly connected with a connecting plate 17, the side surface of the connecting plate 17 is slidably connected with the first slide groove 12, the side surface of the connecting plate 17 is slidably connected with the trapezoidal slider 14, and the inner part of the connecting plate 17 is threadedly connected with a second threaded rod 18, the outer surface of the second threaded rod 18 is fixedly connected to the limit ring 19, the outer surface of the limit ring 19 is rotatably connected to the annular limit plate 20, the lower surface of the trapezoidal slider 14 is slidably connected to the annular limit plate 20, and the outer surface of the second threaded rod 18 is rotatably connected to the annular limit plate 20. When the synchronous belt needs to be removed, by rotating the second threaded rod 18, the second threaded rod 18 rotates to drive the connecting plate 17 to slide, and the sliding of the connecting plate 17 drives the trapezoidal slider 14 to slide to both sides, and the sliding of the trapezoidal slider 14 drives the limit block 15 to slide, so that the limit block 15 is disengaged from the second slide groove 13. At this time, the limit ring 19 can be removed, and the restriction of the limit ring 19 is lost, and the synchronous belt can be replaced.

[0024] Working principle: During installation, the synchronous wheel is sleeved on the surface of the rotating shaft, and the first threaded rod 10 is rotated. Through the cooperation between the first threaded rod 10 and the nut 11, the first threaded rod 10 rotates to reduce the distance between the end of the first threaded rod 10 and the nut 11, and at the same time drives the distance between the first grooves 6 to decrease. The reduction in the distance between the first grooves 6 drives the chuck 4 to fix the surface of the rotating shaft, so that the synchronous wheel is fixed to the surface of the rotating shaft, so as to prevent the synchronous wheel and the shaft rod from slipping, reduce the wear of the keyway, and increase the service life of the synchronous wheel. When the synchronous belt needs to be disassembled, the second threaded rod 18 is rotated, and the second threaded rod 18 rotates to drive the connecting plate 17 to slide, and the connecting plate 17 drives the guide slider 16 to slide, which is affected by the trapezoidal Under the influence of the inclined surface of the slider 14, the guide slider 16 slides forward and backward, driving the trapezoidal slider 14 to slide left and right. The sliding of the trapezoidal slider 14 drives the limit block 15 to slide, so that the limit block 15 disengages from the second slide groove 13. At this time, the annular limit plate 20 can be removed. The side surface of the synchronous belt loses the restriction of the annular limit plate 20, and the synchronous belt can be removed. After the synchronous belt is installed, the second threaded rod 18 is rotated again. The rotation of the second threaded rod 18 drives the connecting plate 17 to slide. The sliding of the connecting plate 17 drives the guide slider 16 to slide. The sliding of the guide slider 16 drives the trapezoidal slider 14 to slide to both sides. The sliding of the trapezoidal slider 14 drives the limit block 15 to get into the second slide groove 13, so that the annular limit plate 20 is fixed to the inner sleeve 1.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A clamping synchronous wheel, characterized in that: include: An inner sleeve (1), wherein a keyway (2) is provided inside the inner sleeve (1), an outer sleeve (3) is fixedly connected to the outer surface of the inner sleeve (1), a chuck (4) is fixedly connected to the outer surface of the outer sleeve (3), a tooth groove (5) is provided on the outer surface of the outer sleeve (3), a first groove (6) is provided inside the chuck (4) and the inner sleeve (1), a second groove (7) is provided inside the outer sleeve (3), a mounting groove (8) is provided inside the chuck (4), a thread groove (9) is provided inside the chuck (4), a first threaded rod (10) is threadedly connected to the inside of the thread groove (9), and a nut (11) is threadedly connected to the outer surface of the first threaded rod (10); The inner sleeve (1) is provided with a first slide groove (12) inside, the inner sleeve (1) is provided with a second slide groove (13) inside, the first slide groove (12) is slidably connected to a trapezoidal slider (14) inside, the side surface of the trapezoidal slider (14) is fixedly connected to a limiting block (15), the trapezoidal slider (14) is slidably connected to a guide slider (16) inside, the side surface of the guide slider (16) is fixedly connected to a connecting plate (17), the internal thread of the connecting plate (17) is connected to a second threaded rod (18) by thread, the outer surface of the second threaded rod (18) is fixedly connected to a limiting ring (19), and the outer surface of the limiting ring (19) is rotatably connected to an annular limiting plate (20).

2. The clamping synchronous wheel according to claim 1, characterized in that: The outer surface of the nut (11) is slidably connected to the mounting groove (8), and the outer surface of the first threaded rod (10) is movably connected to the mounting groove (8).

3. The clamping synchronous wheel according to claim 1, characterized in that: The synchronous wheel outer sleeve (3) and the inner sleeve (1) are combined in a tight-fitting manner and fixed by welding.

4. The clamping synchronous wheel according to claim 1, characterized in that: The number of the tooth grooves (5) is multiple and distributed in a circumferential array, and the number of the mounting grooves (8) is two and distributed left and right.

5. The clamping synchronous wheel according to claim 1, characterized in that: The outer surface of the second threaded rod (18) is rotatably connected to the annular limiting plate (20), and the side surface of the connecting plate (17) is slidably connected to the trapezoidal sliding block (14).

6. The clamping synchronous wheel according to claim 1, characterized in that: The lower surface of the limit block (15) is slidably connected to the first slide groove (12), and the side surface of the limit block (15) is slidably connected to the second slide groove (13).

7. The clamping synchronous wheel according to claim 1, characterized in that: The lower surface of the trapezoidal sliding block (14) is slidably connected to the annular limiting plate (20), and the side surface of the connecting plate (17) is slidably connected to the first sliding groove (12).

Images