CN217301235U - Double-sleeve assembled gear - Google Patents

Abstract

The utility model provides a double-sleeve assembled gear belongs to drive gear technical field. It has solved the poor problem of current gear performance. This assembled gear of double sleeves, including the gear body, the ring gear has on the lateral surface of gear body, and the mounting hole has been seted up to the center department of gear body, is provided with two sleeves in the mounting hole, and two sleeves link firmly on the gear body, and the shaft hole that supplies the axle to pass is seted up in every telescopic center department, has the heat dissipation cavity between two sleeves. The utility model has the advantages of good heat dissipation and convenient disassembly.

Description

Double-sleeve assembled gear

Technical Field

The utility model belongs to the technical field of drive gear, a double-sleeve assembled gear is related to.

Background

The shaft is a cylindrical object penetrating through the middle of a bearing or a wheel or the middle of a gear, but a small part of the shaft is square, the shaft is a mechanical part which supports a rotating part and rotates together with the rotating part to transfer motion, torque or bending moment, the shaft is generally in the shape of a metal round rod, each section can have different diameters, the gear shaft is one of common types of shafts, and the gear on the shaft is continuously meshed to carry out power transmission so as to realize linkage of a mechanical structure.

Most of the gears on the existing market are integrally formed, the inner surface of each gear is in contact with the surface of the upper shaft, the heat of the joint is easily increased due to the long-time rotation of the shaft, the abrasion is easily aggravated, and when the shaft gear is abraded, the gear is generally required to be integrally replaced, so that the production cost is greatly improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a good heat dissipation and convenient assembled gear of double-sleeve who dismantles.

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

the utility model provides an assembled gear of double sleeves, includes the gear body, the lateral surface of gear body on have the ring gear, the center department of gear body has seted up the mounting hole, its characterized in that, the mounting hole in be provided with two sleeves, two the sleeve link firmly on the gear body, and every telescopic center department sets up the shaft hole that supplies the axle to pass, has the heat dissipation cavity between two sleeves.

In the double-sleeve assembled gear, the shaft holes formed in the two sleeves are equal in size and are positioned on the same central axis.

In the double-sleeve assembled gear, the two ends of the mounting hole are respectively provided with a caulking groove for embedding the sleeve, the diameter of the caulking groove is larger than that of the mounting hole, a limiting step is formed between the caulking groove and the mounting hole, and the sleeve is connected with the gear body through a connecting piece after being mounted in the caulking groove.

In the above-mentioned double-sleeve assembled gear, every caulking groove position department be provided with the joint groove of a plurality of radial settings, the sleeve on be provided with radial bellied can block into to the joint piece in the joint groove.

In the above-mentioned double-sleeve assembled gear, a plurality of the joint grooves use the caulking groove as the center circumference evenly distributed on the gear body, and the inboard and caulking groove inside in joint groove are linked together.

In the above dual-sleeve assembled gear, a fixing hole for the connecting piece to penetrate and fix is formed in the outer end face of each clamping block, a connecting hole matched with the fixing hole is formed in the gear body, and the connecting piece penetrates through the connecting hole and the fixing hole from outside to inside in sequence to connect the gear body and the sleeve.

In the above-mentioned double-sleeve assembled gear, the outer surfaces of the two sleeves are flush with the outer side surface of the gear body, respectively.

In the above dual-sleeve assembled gear, both side portions of the gear body have weight reduction grooves recessed inward.

Compared with the prior art, the utility model has the advantages of: the gear body is driven through the gear ring, the two sleeves are arranged in the mounting hole of the gear body, the gear body is in contact with the shaft through the two sleeves, meanwhile, a key groove is formed in one sleeve and used for mounting a key block, the sleeves are detachably connected to the gear body, when the sleeves are worn, the sleeves can be replaced in time, and different sleeves can be selected according to the diameter of the shaft, so that the gear body can adapt to different shafts, and a heat dissipation gap is formed between the two sleeves and used for improving the heat dissipation performance.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

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

Fig. 2 is a schematic view of the connection structure between the middle gear body and the sleeve.

In the figure, 1, a gear body; 2. a ring gear; 3. mounting holes; 4. a sleeve; 5. a shaft hole; 6. a heat dissipation chamber; 7. caulking grooves; 8. a limiting step; 9. a clamping groove; 10. a clamping block; 11. a fixing hole; 12. connecting holes; 13. a connecting member; 14. a weight reduction groove.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and 2, a double-sleeve 4 assembled gear comprises a gear body 1, a gear ring 2 is arranged on the outer side surface of the gear body 1, a mounting hole 3 is formed in the center of the gear body 1, two sleeves 4 are arranged in the mounting hole 3, the two sleeves 4 are fixedly connected to the gear body 1, a shaft hole 5 for a shaft to pass through is formed in the center of each sleeve 4, and a heat dissipation cavity 6 is arranged between the two sleeves 4.

In this embodiment, gear body 1 transmits through ring gear 2, be provided with two sleeves 4 in gear body 1's the mounting hole 3, gear body 1 contacts with the axle through two sleeves 4, and simultaneously, the keyway has been seted up on one of them sleeve 4, be used for the installation key piece, sleeve 4 detachable connections is on gear body 1, change that can be timely when sleeve 4 appears wearing and tearing, also can select different sleeves 4 according to the diameter of axle, make this gear body 1 also can adapt to different axles, heat dissipation clearance has between two sleeves 4, be used for promoting heat dispersion.

In this embodiment, the shaft holes 5 formed in the two sleeves 4 are equally large and located on the same central axis, so as to improve the installation accuracy of the gear body 1 and the shaft.

In this embodiment, the caulking groove 7 that supplies sleeve 4 embedding is seted up respectively at the both ends of mounting hole 3, and the diameter of caulking groove 7 is greater than the diameter of mounting hole 3, is formed with spacing step 8 between caulking groove 7 and the mounting hole 3, and sleeve 4 installs to be connected through connecting piece 13 in 7 back and the gear body 1 of caulking groove.

Specifically, every caulking groove 7 position department is provided with the joint groove 9 of a plurality of radial settings, is provided with radial bellied joint piece 10 that can block into to the joint groove 9 on the sleeve 4, and as preferred, a plurality of joint grooves 9 use caulking groove 7 as central circumference evenly distributed on gear body 1, and the inboard and 7 inside caulking grooves of joint groove 9 are linked together.

In this embodiment, set up on the outer terminal surface of every joint piece 10 and supply connecting piece 13 to penetrate fixed orifices 11, set up on the gear body 1 with fixed orifices 11 matched with connecting hole 12, connecting piece 13 passes connecting hole 12 and fixed orifices 11 in proper order from outside to inside and is connected gear body 1 and sleeve 4, connecting piece 13 is the bolt, links firmly gear body 1 and sleeve 4 through connecting piece 13.

In the present embodiment, in order to facilitate the installation of the gear body 1, the outer surfaces of the two sleeves 4 are flush with the outer side surfaces of the gear body 1, respectively.

In order to reduce the weight of the whole gear, two side parts of the gear body 1 are provided with weight reduction grooves 14 which are inwards sunken.

The utility model discloses a theory of operation does: gear body 1 transmits through ring gear 2, be provided with two sleeves 4 in gear body 1's the mounting hole 3, gear body 1 contacts with the axle through two sleeves 4, and simultaneously, the keyway has been seted up on one of them sleeve 4, be used for installing the key piece, sleeve 4 detachable connections is on gear body 1, change that can be timely when sleeve 4 appears wearing and tearing, also can select different sleeve 4 according to the diameter of axle, make this gear body 1 also can adapt to different axles, heat dissipation clearance has between two sleeves 4, be used for promoting heat dispersion.

Specifically, the sleeve 4 is clamped into the clamping groove 9 through the clamping block 10 to realize the radial upward status of the sleeve 4 and the gear body 1, and then the sleeve 4 and the gear body 1 are integrally fixed through the connecting piece 13.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the gear body 1, the ring gear 2, the mounting hole 3, the sleeve 4, the shaft hole 5, the heat dissipation chamber 6, the caulking groove 7, the limit step 8, the snap groove 9, the snap block 10, the fixing hole 11, the connecting hole 12, the connecting piece 13, the lightening groove 14, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims (8)

1. The utility model provides an assembled gear of double sleeves, includes gear body (1), the lateral surface of gear body (1) on have ring gear (2), the center department of gear body (1) has seted up mounting hole (3), its characterized in that, mounting hole (3) in be provided with two sleeves (4), two sleeve (4) link firmly on gear body (1), and the center department of every sleeve (4) sets up shaft hole (5) that supply the axle to pass, heat dissipation cavity (6) have between two sleeves (4).

2. A double-sleeve assembled gear according to claim 1, wherein the shaft holes (5) formed in the two sleeves (4) are equally large and are located on the same central axis.

3. The dual-sleeve assembled gear according to claim 1, wherein two ends of the mounting hole (3) are respectively provided with a caulking groove (7) for the sleeve (4) to be embedded in, the diameter of the caulking groove (7) is larger than that of the mounting hole (3), a limiting step (8) is formed between the caulking groove (7) and the mounting hole (3), and the sleeve (4) is connected with the gear body (1) through a connecting piece (13) after being installed in the caulking groove (7).

4. A double-sleeve assembled gear according to claim 3, wherein a plurality of radially arranged clamping grooves (9) are arranged at the position of each caulking groove (7), and the sleeve (4) is provided with radially protruding clamping blocks (10) which can be clamped into the clamping grooves (9).

5. The assembled gear of claim 4, wherein the snap-in grooves (9) are circumferentially and uniformly distributed on the gear body (1) by taking the caulking groove (7) as a center, and the inner sides of the snap-in grooves (9) are communicated with the inside of the caulking groove (7).

6. The dual-sleeve assembled gear according to claim 5, wherein the outer end face of each of the snap-in blocks (10) is provided with a fixing hole (11) for a connecting piece (13) to penetrate and fix, the gear body (1) is provided with a connecting hole (12) matched with the fixing hole (11), and the connecting piece (13) sequentially penetrates through the connecting hole (12) and the fixing hole (11) from outside to inside to connect the gear body (1) and the sleeve (4).

7. A double-sleeve assembled gear according to claim 1, characterised in that the outer surfaces of the two sleeves (4) are each flush with the outer side of the gear body (1).

8. A double-sleeve assembly gear according to claim 1, wherein both side portions of the gear body (1) have weight-reduction grooves (14) recessed inward.

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