Low-noise flexible chain wheel

Abstract

The utility model relates to the technical field of low-noise chain wheels, and provides a low-noise flexible chain wheel which comprises a chain wheel body, a clamping groove is formed in the upper surface of the chain wheel body, a first through hole is formed in the outer wall of the chain wheel body, a connecting ring is fixedly connected in the chain wheel body, a second through hole is formed in the connecting ring, and a first connecting rod is fixedly connected in the connecting ring. A first supporting plate is hinged to the outer wall of the first connecting rod and penetrates through the first through hole and the second through hole, a gear is rotationally connected into the first through hole and hinged to the first supporting plate, a ratchet wheel is meshed with the outer wall of the gear, and a second connecting rod is fixedly connected to the upper surface of the ratchet wheel. The distance between the first supporting plate and the teeth on the surface of the chain wheel body can be enlarged, the distance between the teeth on the surface of the chain wheel body and the chain holes can be reduced, and therefore the noise control purpose is achieved by being matched with chain gaps, the structure is simple, daily maintenance and overhaul are convenient, and cost control is facilitated; the lubricating oil is smeared on the outer wall of the chain wheel body, and workers can add the lubricating oil more conveniently and visually.

Description

Technical Field

[0001] The utility model relates to the technical field of low-noise sprockets, in particular to a low-noise flexible sprocket. Background Art

[0002] A sprocket is a wheel with cog-type sprocket teeth, which is used to mesh with a block with accurate pitch on a link chain or cable. It is an important component in mechanical engineering. It uses the characteristics of sprockets and gears to transfer energy from one drive device to another to achieve the function of transmission and transfer of force. Sprockets are widely used in mechanical transmission in chemical industry, textile machinery, escalators, wood processing, three-dimensional parking garage, agricultural machinery, food processing, instrumentation, petroleum and other industries. According to the different characteristics and uses of sprockets, they can be divided into single sprockets, double sprockets, helical gear sprockets, non-standard sprockets, plastic sprockets, stainless steel sprockets and other types;

[0003] After searching, the utility model with the announcement number CN215806153U discloses a low-noise flexible sprocket. Although the utility model patent can slowly pump the lubricating oil in the oil storage cavity to the surface of the sprocket body, thereby increasing the lubrication between the sprocket body and the chain, and thus increasing the transmission effect of the chain;

[0004] First, the principle of the utility model is complicated, the internal structure is relatively delicate, it is not convenient for daily maintenance and repair, and it is not conducive to cost control;

[0005] Second, the utility model needs to store lubricating oil inside the low-noise flexible sprocket. When the lubricating oil is consumed, it is not conducive for the staff to find and add it in time, and the practicality is low;

[0006] Therefore, a low-noise flexible sprocket is proposed. Utility Model Content

[0007] In view of this, the utility model provides a low-noise flexible sprocket to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0008] The technical solution of the utility model is implemented as follows: a low-noise flexible sprocket comprises a sprocket body, a card slot is provided on the upper surface of the sprocket body, a through hole 1 is provided on the outer wall of the sprocket body, a connecting ring is fixedly connected to the sprocket body, a through hole 2 is provided in the connecting ring, a connecting rod 1 is fixedly connected to the connecting ring, a supporting plate 1 is hingedly connected to the outer wall of the connecting rod 1, the supporting plate 1 passes through the through hole 1 and the through hole 2, a gear is rotatably connected in the through hole 1, the gear is hinged to the supporting plate 1, and the outer wall of the gear is meshed with a ratchet Wheel, the upper surface of the ratchet is fixedly connected with a connecting rod 2, the connecting rod 2 penetrates the sprocket body, the connecting rod 2 is rotatably and slidably connected to the sprocket body, the top of the connecting rod 2 is fixedly connected with a handle 1, the handle 1 is clamped with the sprocket body through a slot, a connecting rod 3 is fixedly connected in the sprocket body, the outer wall of the connecting rod 3 is rotatably connected with a pawl, the pawl is clamped with the ratchet, the side of the pawl away from the ratchet is fixedly connected with a spring, one end of the spring is fixedly connected with a support plate 2, and the support plate 2 is fixedly connected to the sprocket body.

[0009] Further preferably, the upper surface of the sprocket body is rotatably connected to a threaded rod, the top of the threaded rod is fixedly connected to a handle 2, the outer wall of the threaded rod is threadedly connected to a connecting plate, the lower surface of the connecting plate is fixedly connected to a support rod, and the outer wall of the support rod is fixedly connected to absorbent cotton.

[0010] Further preferably, the threaded rod and the second handle are provided in two groups, and the two groups of the threaded rod and the second handle are parallel to each other. The two groups of the threaded rod and the second handle cooperate with each other to control the position of the connecting plate.

[0011] Further preferably, there are multiple support rods, and the multiple support rods are evenly distributed. The multiple support rods facilitate the staff to quickly apply lubricating oil to the sprocket body.

[0012] Further preferably, the through holes 1 and the through holes 2 are provided in multiple groups, the multiple groups of through holes 1 and the through holes 2 are evenly distributed, and the number of the through holes 1 and the through holes 2 corresponds to each other.

[0013] Further preferably, the absorbent cottons are in multiple groups, and the multiple groups of absorbent cottons are evenly distributed.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model pulls the handle 1 outward until the handle 1 leaves the slot, and rotates the handle 1, so that the connecting rod 2 and the ratchet wheel rotate, and the rotation of the ratchet wheel drives the gear and the support plate 1 to move, and the support plate 1 swings around the connecting rod 1, thereby expanding the distance between the support plate 1 and the teeth on the surface of the sprocket body, and reducing the distance between the teeth on the surface of the sprocket body and the chain hole, thereby matching the chain gap to achieve the purpose of controlling noise, and the structure is simple, convenient for daily maintenance and repair, and conducive to controlling costs;

[0016] 2. The utility model drips lubricating oil onto the support rod and the absorbent cotton, and rotates the second handle. The rotation of the second handle drives the threaded rod to rotate, and the threaded rod and the second handle cooperate with each other to move the connecting plate up or down, thereby applying the lubricating oil to the outer wall of the sprocket body, making it more convenient and intuitive for the staff to add the lubricating oil.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the utility model.

[0023] Figure numerals: 1, sprocket body; 2, through hole one; 3, connecting ring; 4, through hole two; 5, connecting rod one; 6, support plate one; 7, gear; 8, ratchet; 9, connecting rod two; 10, handle one; 11, connecting rod three; 12, pawl; 13, spring; 14, support plate two; 15, threaded rod; 16, handle two; 17, connecting plate; 18, support rod; 19, absorbent cotton; 20, slot. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, the embodiment of the utility model provides a low-noise flexible sprocket: comprising a sprocket body 1, a card slot 20 is provided on the upper surface of the sprocket body 1, a through hole 2 is provided on the outer wall of the sprocket body 1, a connecting ring 3 is fixedly connected inside the sprocket body 1, a through hole 24 is provided inside the connecting ring 3, a connecting rod 5 is fixedly connected inside the connecting ring 3, a support plate 6 is hingedly connected to the outer wall of the connecting rod 5, the support plate 6 passes through the through hole 2 and the through hole 24, a gear 7 is rotatably connected inside the through hole 2, the gear 7 is hinged to the support plate 6, a ratchet 8 is meshed and connected to the outer wall of the gear 7, and the ratchet 8 has an upper surface. A connecting rod 2 9 is fixedly connected to the surface, and the connecting rod 29 passes through the sprocket body 1. The connecting rod 29 is rotatably and slidably connected to the sprocket body 1. A handle 10 is fixedly connected to the top of the connecting rod 29. The handle 10 is clamped with the sprocket body 1 through a clamping groove 20. A connecting rod 3 11 is fixedly connected inside the sprocket body 1. A pawl 12 is rotatably connected to the outer wall of the connecting rod 3 11, and the pawl 12 is clamped with the ratchet 8. A spring 13 is fixedly connected to the side of the pawl 12 away from the ratchet 8, and one end of the spring 13 is fixedly connected to a support plate 2 14, and the support plate 2 14 is fixedly connected to the sprocket body 1.

[0027] In one embodiment, a threaded rod 15 is rotatably connected to the upper surface of the sprocket body 1, a handle 16 is fixedly connected to the top of the threaded rod 15, a connecting plate 17 is threadedly connected to the outer wall of the threaded rod 15, a support rod 18 is fixedly connected to the lower surface of the connecting plate 17, and an absorbent cotton 19 is fixedly connected to the outer wall of the support rod 18.

[0028] In one embodiment, two groups of threaded rods 15 and handles 16 are provided, and the two groups of threaded rods 15 and handles 16 are parallel to each other. The two groups of threaded rods 15 and handles 16 cooperate with each other to control the position of the connecting plate 17. There are multiple support rods 18, and the multiple support rods 18 are evenly distributed. The multiple support rods 18 facilitate the staff to quickly apply lubricating oil to the sprocket body 1. There are multiple groups of through holes 1 2 and through holes 2 4, and the multiple groups of through holes 1 2 and through holes 2 4 are evenly distributed, and the number of through holes 1 2 and through holes 2 4 corresponds. There are multiple groups of absorbent cotton 19, and the multiple groups of absorbent cotton 19 are evenly distributed.

[0029] When the utility model is working: when the gap between the sprocket body 1 and the chain hole is large, the sprocket body 1 and the chain are prone to generate large noise during transmission. The handle 10 is pulled outward until the handle 10 leaves the slot 20, and the handle 10 is rotated. Since the ratchet 8, the connecting rod 29 and the handle 10 are fixedly connected, the connecting rod 29 and the ratchet 8 rotate. Since the gear 7 and the ratchet 8 are meshed and connected, the rotation of the ratchet 8 drives the gear 7 to rotate, and the rotation of the gear 7 drives the support plate 6 to move. At this time, the support plate 6 swings around the connecting rod 5 under the cooperation of the through hole 24, thereby expanding the distance between the support plate 6 and the surface teeth of the sprocket body 1, and reducing the distance between the surface teeth of the sprocket body 1 and the chain hole. , thereby cooperating with the chain gap, and finally achieving the purpose of controlling noise. The structure is simple, convenient for daily maintenance and overhaul, and beneficial to cost control. When a jam occurs during transmission due to lack of lubricating oil on the surface of the sprocket body 1, the staff will drip lubricating oil onto the support rod 18 and the absorbent cotton 19, and turn the handle 2 16. Since the handle 2 16 and the threaded rod 15 are fixedly connected, the rotation of the handle 2 16 drives the threaded rod 15 to rotate. Since the threaded rod 15 and the connecting plate 17 are threadedly connected, the two threaded rods 15 and the handle 2 16 cooperate with each other when rotating to make the connecting plate 17 move up or down, thereby applying the lubricating oil to the outer wall of the sprocket body 1, and it is more convenient and intuitive for the staff to add lubricating oil.

[0030] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A low-noise flexible sprocket, characterized in that: The invention comprises a sprocket body (1), the upper surface of the sprocket body (1) is provided with a slot (20), the outer wall of the sprocket body (1) is provided with a through hole (2), a connecting ring (3) is fixedly connected inside the sprocket body (1), a through hole (4) is provided inside the connecting ring (3), a connecting rod (5) is fixedly connected inside the connecting ring (3), a supporting plate (6) is hingedly connected to the outer wall of the connecting rod (5), the supporting plate (6) passes through the through hole (2) and the through hole (4), a gear (7) is rotatably connected inside the through hole (2), the gear (7) is hingedly connected to the supporting plate (6), a ratchet (8) is meshedly connected to the outer wall of the gear (7), and the upper surface of the ratchet (8) is fixedly connected to the connecting rod (2). 9), the second connecting rod (9) passes through the sprocket body (1), the second connecting rod (9) is rotatably and slidably connected to the sprocket body (1), the top of the second connecting rod (9) is fixedly connected with a handle (10), the handle (10) is clamped with the sprocket body (1) through a clamping groove (20), the sprocket body (1) is fixedly connected with a third connecting rod (11), the outer wall of the third connecting rod (11) is rotatably connected with a pawl (12), the pawl (12) is clamped with the ratchet (8), the side of the pawl (12) away from the ratchet (8) is fixedly connected with a spring (13), one end of the spring (13) is fixedly connected with a second support plate (14), the second support plate (14) is fixedly connected to the sprocket body (1).

2. A low-noise flexible sprocket according to claim 1, characterized in that: The upper surface of the sprocket body (1) is rotatably connected to a threaded rod (15), the top of the threaded rod (15) is fixedly connected to a handle (16), the outer wall of the threaded rod (15) is threadedly connected to a connecting plate (17), the lower surface of the connecting plate (17) is fixedly connected to a support rod (18), and the outer wall of the support rod (18) is fixedly connected to an absorbent cotton (19).

3. A low-noise flexible sprocket according to claim 2, characterized in that: The threaded rod (15) and the second handle (16) are provided in two groups, and the two groups of the threaded rod (15) and the second handle (16) are parallel to each other.

4. A low-noise flexible sprocket according to claim 2, characterized in that: The number of the support rods (18) is multiple, and the multiple support rods (18) are evenly distributed.

5. A low-noise flexible sprocket according to claim 1, characterized in that: The through holes one (2) and through holes two (4) are provided in multiple groups, the multiple groups of through holes one (2) and through holes two (4) are evenly distributed, and the number of through holes one (2) and through holes two (4) corresponds to each other.

6. A low-noise flexible sprocket according to claim 2, characterized in that: The absorbent cotton (19) is provided in multiple groups, and the multiple groups of absorbent cotton (19) are evenly distributed.

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