CN211648972U

CN211648972U - Gear for counting revolution

Info

Publication number: CN211648972U
Application number: CN202020124059.2U
Authority: CN
Inventors: 张桑琪
Original assignee: Changzhou Xinyubao Drive Disk Assembly Co ltd
Current assignee: Changzhou Xinyubao Drive Disk Assembly Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-10-09
Anticipated expiration: 2030-01-19

Abstract

The utility model relates to a gear for revolution counter, relate to the technical field of gear, it includes wheel body and teeth of a cogwheel, the teeth of a cogwheel are fixed with a plurality of along the periphery of wheel body and wheel body integral type, the wheel body includes supporting part and the thickening portion that is located the supporting part periphery, the axial one end of thickening portion is fixed with the supporting part integral type, the other end protrudes from the terminal surface of supporting part, the supporting part has seted up the mounting hole, the axis of mounting hole and the axis collineation of bearing portion, the teeth of a cogwheel are fixed with thickening portion; the one end that the thickening portion was kept away from to the wheel body is fixed with ring shape reinforcing platform, and the wheel teeth of a cogwheel is close to the one end of reinforcing platform and is fixed with reinforcing platform. The utility model discloses easily improve the intensity of gear when maintaining the gear lightweight for the teeth of a cogwheel is difficult to take place to warp the condition of damaging even when the jamming, thereby gear in the easy mechanical counter is transmission under higher precision.

Description

Gear for counting revolution

Technical Field

The utility model belongs to the technical field of the technique of gear and specifically relates to a gear for revolution counter.

Background

The mechanical counter adopts the gear transmission mechanical counting principle, and is widely applied to the recording and displaying of various numerical values due to the characteristics of convenient counting, stable performance and no need of electric control, and the gear for counting the number of revolutions is a main counting element in the mechanical counter.

Chinese patent publication No. CN1758272A discloses a mechanical counter, which comprises a cover case with a transparent window, a counting assembly located in the cover case, and a rotating handle wheel assembly fitted with the counting assembly; the counting assembly comprises a counting disc and a carry gear; the periphery of a unit counting disc of the counting assembly is provided with evenly arranged end face supporting teeth, and the rotating handle wheel assembly comprises a driven wheel and a driving wheel; the driven wheel is provided with a rotating handle shaft, a numerical value input wheel and a driven gear which are connected with the rotating handle shaft; the end part of a rotating handle shaft penetrating through the driving wheel is sleeved with a compression spring, and the end part of the rotating handle shaft is connected with a fastening piece in a threaded manner; the end surface of the numerical value input wheel is provided with a counting pawl piece, and a pawl of the counting pawl piece is abutted with the end surface supporting tooth; the cover is formed by embedding a top cover and a base, the base is provided with a carrying shaft notch for placing a carrying shaft, the base is provided with a counting shaft notch for placing a counting shaft, the base is provided with a lower handle shaft notch for placing a rotating handle shaft, and the lower handle shaft notch and the upper handle shaft notch are correspondingly formed on the top cover and buckled with each other; the front part of the bottom surface of the base is provided with a positioning spring piece, the end part of which abuts against the end surface supporting tooth.

Because mechanical counter volume is less and inner structure is comparatively complicated, consequently install the less and thinner of its inside gear of making usually, this intensity that makes the gear for the count number in the current mechanical counter is less, and along with the increase of mechanical counter live time, its inside gear is because reasons such as the degree of lubrication reduces, the jamming phenomenon appears in the inevitable during transmission, when the jamming dynamics is great, the problem that current gear for the count number appears deformation even breakage very easily.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a gear for the count number of revolutions, it has intensity bigger, and the higher effect of transmission precision can effectively improve the problem that current gear for the count number of revolutions is easily deformed or even damaged.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a gear for counting revolutions comprises a gear body and gear teeth, wherein a plurality of gear teeth are integrally fixed with the gear body along the periphery of the gear body, the gear body comprises a supporting part and a thickened part located on the periphery of the supporting part, one axial end of the thickened part is integrally fixed with the supporting part, the other axial end of the thickened part protrudes out of the end surface of the supporting part, the supporting part is provided with a mounting hole, the central axis of the mounting hole is collinear with the central axis of the supporting part, and the gear teeth are fixed with the thickened part; the wheel body is kept away from the one end of thickening portion is fixed with ring shape reinforcing platform, the teeth of a cogwheel is close to reinforcing platform's one end with reinforcing platform is fixed.

Through adopting above-mentioned technical scheme, the setting of supporting part and thickening portion makes the wheel body be the disc, can enough reduce the installation space of gear in mechanical counter inside, easily maintains the intensity of gear again. Strengthen the platform and be used for strengthening the intensity of wheel body on the one hand, on the other hand is used for playing the supporting role to the gear teeth, strengthens the intensity of the teeth of a cogwheel for the teeth of a cogwheel is difficult to take place to warp the condition of even damage when the jamming, easily gear transmission under higher precision.

The present invention may be further configured in a preferred embodiment as: the reinforcing platform is kept away from the end portion of the mounting hole is fixedly provided with a supporting rib, the gear teeth pass through the supporting rib and the reinforcing platform is fixed, and a weight reduction gap exists between the reinforcing platform and the gear body.

Through adopting above-mentioned technical scheme, through the setting of brace rod, when easily strengthening the platform and playing the supporting role to the teeth of a cogwheel, still easily reduce the dead weight of gear for install the mechanical counter of the gear for the count revolution in this scheme more light.

The present invention may be further configured in a preferred embodiment as: the distance between one end of the support rib, far away from the mounting hole, and the central axis of the mounting hole is smaller than the distance between one end of the gear tooth, far away from the mounting hole, and the central axis of the mounting hole.

Through adopting above-mentioned technical scheme for the meshing and the transmission between the gear are difficult to cause the interference to brace rod and reinforcing platform.

The present invention may be further configured in a preferred embodiment as: and a first chamfer is arranged at the joint of the thickened part and the supporting part.

Through adopting above-mentioned technical scheme, easily increase the joint volume of thickening portion and supporting part, can play the joint strength of reinforcing thickening portion and supporting part to the effect of reinforcing gear intensity.

The present invention may be further configured in a preferred embodiment as: and a second chamfer is arranged at the joint of the reinforcing platform and the wheel body.

Through adopting above-mentioned technical scheme, easily increase the connection volume of reinforcing platform and wheel body to further strengthen the bulk strength of the gear in this scheme.

The present invention may be further configured in a preferred embodiment as: one side of the supporting part, which is far away from the reinforcing platform, is fixedly provided with a plurality of reinforcing ribs, the reinforcing ribs are connected end to end, the supporting part is far away from the one side of the reinforcing platform, the one side of the reinforcing platform is separated to form a triangular reinforcing belt, and the end parts, close to the thickened part, of the reinforcing ribs are abutted to the first chamfers.

Through adopting above-mentioned technical scheme, have the characteristic of good stability according to triangle-shaped for the strengthening rib easily plays supporting role to the thickening portion on the one hand, and on the other hand easily plays the additional strengthening to the wheel body, thereby can play the effect of reinforcing wheel body intensity.

The present invention may be further configured in a preferred embodiment as: the edges of the gear teeth are set to be round corners.

Through adopting above-mentioned technical scheme for the teeth of a cogwheel is difficult to cause wearing and tearing to the gear rather than the meshing, and the teeth of a cogwheel at fillet is changeed in the intermeshing between the gear simultaneously, is favorable to reducing the jamming phenomenon of gear.

The present invention may be further configured in a preferred embodiment as: the wheel body is located adjacent and is fixed with magnet between the teeth of a cogwheel, the wheel body with the teeth of a cogwheel adopt ferromagnetic metal.

Through adopting above-mentioned technical scheme for the gear produces magnetism easily when the meshing and inhales, changes in the intermeshing between the adjacent gear, is favorable to improving the transmission precision of the gear in this scheme.

The present invention may be further configured in a preferred embodiment as: the periphery of the gear teeth is coated with a magnetic wear-resistant layer.

Through adopting above-mentioned technical scheme, the wearing and tearing condition of gear is easily reduced to the magnetism wearing layer, and the wear-resisting magnetism of magnetism simultaneously gear in this scheme easily maintains its magnetism and inhales the effect of formula meshing.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the supporting part, the thickened part, the reinforcing platform and the fixation of the gear teeth and the reinforcing platform, the strength of the gear is easy to improve while the portability of the gear is maintained, so that the gear teeth are not easy to deform or even break when clamped, and the gear is easy to transmit under high precision;

2. through the arrangement of the supporting ribs and the weight reduction gaps, the reinforcing platform can support the gear teeth easily, and meanwhile, the effect of further reducing the self weight of the gear can be achieved, so that the gear in the scheme is light and durable;

3. through the arrangement of the first chamfer and the second chamfer, the effects of further enhancing the strength of the gear, reducing the possibility of deformation and damage of the gear and improving the transmission precision of the gear can be achieved;

4. through the setting of magnet and magnetism wearing layer, when easily reducing teeth of a cogwheel wearing and tearing, still easily the gear produces magnetism and inhales the formula meshing, can play the effect that improves the gear drive precision.

Drawings

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

Fig. 2 is a schematic top view of the present embodiment.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

Fig. 4 is a schematic sectional view taken along the plane a-a in fig. 2.

In the figure, 1, a wheel body; 11. a support portion; 111. mounting holes; 12. thickening part; 13. a first chamfer; 2. gear teeth; 3. a reinforcing table; 31. a second chamfer; 32. a weight-reducing gap; 33. supporting ribs; 4. reinforcing ribs; 41. a triangular reinforcing band; 5. mounting grooves; 51. a magnet; 6. a magnetic wear layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the gear for counting revolutions disclosed in this embodiment includes a wheel body 1, the wheel body 1 includes a cylindrical supporting portion 11, a mounting hole 111 convenient for mounting the gear is formed in the supporting portion 11, and a central axis of the mounting hole 111 is collinear with a central axis of the bearing portion. The wheel body 1 further comprises a thickened portion 12 located on the periphery of the supporting portion 11, one axial end of the thickened portion 12 is integrally fixed with the supporting portion 11, and the other axial end protrudes out of the end surface of the supporting portion 11, so that the wheel body 1 is in a shape of a disc with a recessed inner portion, the installation volume of the wheel body 1 is easily reduced, and meanwhile, the strength of the wheel body 1 is also easily maintained. The first chamfer 13 is integrally formed at the joint of the thickened portion 12 and the supporting portion 11, so that the connecting volume of the thickened portion 12 and the supporting portion 11 can be increased, and the effects of improving the connecting strength of the thickened portion 12 and the supporting portion 11 and enhancing the strength of the wheel body 1 are achieved. The gear in this embodiment further includes a gear tooth 2 integrally fixed with the gear body 1, the gear tooth 2 is opened on the outer circumferential surface of the thickened portion 12, and the gear tooth 2 is continuously provided with a plurality of teeth along the outer circumferential surface of the thickened portion 12.

Referring to fig. 3, the edges of the gear teeth 2 are provided with rounded corners to reduce the mutual wear between the gears.

Referring to fig. 4, the end of the wheel body 1 away from the thickened portion 12 is integrally fixed with the reinforcing table 3, and the mounting hole 111 penetrates through the reinforcing table 3, so that the reinforcing table 3 is in a circular ring shape. The joint of the reinforcing platform 3 and the wheel body 1 is integrally provided with a second chamfer 31 for increasing the joint strength of the reinforcing platform 3 and the wheel body 1, and simultaneously, a weight reduction gap 32 is formed between the reinforcing platform 3 and the wheel body 1 to reduce the self weight of the gear. The tip integral type that reinforcing platform 3 kept away from mounting hole 111 is fixed with brace rod 33, and brace rod 33 length direction's one end is fixed with the one end integral type that the teeth of a cogwheel 2 is close to reinforcing platform 3 for reinforcing platform 3 plays the supporting role to the teeth of a cogwheel 2, can play the effect of reinforcing the 2 intensity of the teeth of a cogwheel, makes the condition of the teeth of a cogwheel 2 difficult emergence deformation and damage in the use. In order to make the reinforcing platform 3 and the supporting rib 33 not easily interfere with the engagement of the gears, the distance from the end of the supporting rib 33 far away from the mounting hole 111 to the central axis of the mounting hole 111 is smaller than the distance from the end of the gear tooth 2 far away from the mounting hole 111 to the central axis of the mounting hole 111.

Referring to fig. 2, the one side integral type that the reinforcing platform 3 was kept away from to supporting part 11 is fixed with three strengthening ribs 4, strengthening rib 4 protrusion in the surface of supporting part 11, three strengthening ribs 4 end to end separate out triangle strengthening band 41 with the one side that the reinforcing platform 3 was kept away from to supporting part 11, and all strengthening ribs 4 length direction's both ends all with first chamfer 13 butt, make strengthening rib 4 play the supporting role to thickening portion 12, be favorable to strengthening the radial strength of wheel body 1, thereby help improving the whole radial strength of gear in this embodiment.

Referring to fig. 3, the mounting groove 5 is opened along one end of the thickened portion 12 of the wheel body 1 far away from the mounting hole 111, the mounting groove 5 is provided with a plurality of mounting grooves 5 along the circumferential direction of the thickened portion 12, and each mounting groove 5 is provided between adjacent teeth of a wheel 2. The magnet 51 is fixedly bonded in the mounting groove 5, and the wheel body 1 and the wheel teeth 2 are made of ferromagnetic metal such as iron, cobalt, nickel or alloy thereof, so that the gears in the embodiment are easy to magnetically attract when meshed with each other, thereby being easier to align and mesh between the gears and being beneficial to improving the transmission precision of the gears. Further, the periphery of teeth of a cogwheel 2 is coated with magnetism wearing layer 6, is used for strengthening the abrasion resistance of teeth of a cogwheel 2 on the one hand, and on the other hand magnetism wearing layer 6 is difficult to cause the interference to the formula meshing of magnetism that inhales of gear. The magnetic wear-resistant layer 6 in this embodiment can be made by using a method of a magnetic wear-resistant coating material disclosed in chinese patent with an authorization publication No. CN105348995B, and then densely coated on the periphery of the gear teeth 2.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a gear for count revolution, includes wheel body (1) and teeth of a cogwheel (2), teeth of a cogwheel (2) are followed the periphery of wheel body (1) with wheel body (1) integral type is fixed with a plurality of, its characterized in that: the wheel body (1) comprises a supporting portion (11) and a thickened portion (12) located on the periphery of the supporting portion (11), one axial end of the thickened portion (12) is integrally fixed with the supporting portion (11), the other end of the thickened portion protrudes out of the end face of the supporting portion (11), the supporting portion (11) is provided with a mounting hole (111), the central axis of the mounting hole (111) is collinear with the central axis of the supporting portion (11), and the wheel teeth (2) are fixed with the thickened portion (12); keep away from wheel body (1) the one end of thickening portion (12) is fixed with ring shape reinforcing platform (3), the teeth of a cogwheel (2) are close to the one end of reinforcing platform (3) with reinforcing platform (3) are fixed.

2. A revolution counting gear according to claim 1, wherein: reinforcing platform (3) are kept away from the end fixing of mounting hole (111) has brace rod (33), the teeth of a cogwheel (2) are passed through brace rod (33) with reinforcing platform (3) are fixed, reinforcing platform (3) with there is weight reduction clearance (32) between wheel body (1).

3. A revolution counting gear according to claim 2, wherein: the distance between one end of the support rib (33) far away from the mounting hole (111) and the central axis of the mounting hole (111) is smaller than the distance between one end of the gear tooth (2) far away from the mounting hole (111) and the central axis of the mounting hole (111).

4. A revolution counting gear according to claim 1, wherein: the junction of the thickened portion (12) and the support portion (11) is provided with a first chamfer (13).

5. A revolution counting gear according to claim 1, wherein: and a second chamfer (31) is arranged at the joint of the reinforcing platform (3) and the wheel body (1).

6. The revolution counting gear according to claim 4, wherein: keep away from supporting part (11) the one side of reinforcing platform (3) is fixed with a plurality of strengthening ribs (4), strengthening rib (4) end to end are in supporting part (11) is kept away from the one side of reinforcing platform (3) is separated and is formed triangle strengthening band (41), strengthening rib (4) are close to the tip of thickening portion (12) with first chamfer (13) butt.

7. A revolution counting gear according to claim 1, wherein: the edges of the gear teeth (2) are set to be round angles.

8. A revolution counting gear according to claim 1, wherein: the wheel body (1) is located adjacently and is fixed with magnet (51) between the teeth of a cogwheel (2), the wheel body (1) with the teeth of a cogwheel (2) adopt ferromagnetic metal.

9. A revolution counting gear according to claim 8, wherein: the periphery of the gear teeth (2) is coated with a magnetic wear-resistant layer (6).