CN210461603U

CN210461603U - Cylindrical helical gear

Info

Publication number: CN210461603U
Application number: CN201921443202.8U
Authority: CN
Inventors: 蒋荣坤
Original assignee: Changzhou City Gleason Qianjin Gear Co ltd
Current assignee: Changzhou City Gleason Qianjin Gear Co ltd
Priority date: 2019-08-31
Filing date: 2019-08-31
Publication date: 2020-05-05
Anticipated expiration: 2029-08-31

Abstract

The utility model relates to the technical field of gears, in particular to a cylindrical helical gear, which comprises a body and a shaft hub, wherein the outer peripheral surface of the body is provided with a wheel tooth part, the inner peripheral surface of the body is in molded surface connection with the shaft hub, and a fixing mechanism for fixing the shaft hub on the body is arranged between the shaft hub and the body; the fixing mechanism includes the fixture block, be provided with on the body with shaft hub assorted through-hole, the utility model discloses the cylinder helical gear is when using, with the profile connection between shaft hub and the body, just also limited the circumferential displacement of shaft hub on the body, the one end at the body is supported by the spacing shaft shoulder of shaft hub one end again simultaneously, the other end of body is established on the shaft hub by the fixture block card simultaneously to the axial displacement of shaft hub on the body has been restricted, make the shaft hub fixed on the body, also make the body dismantlement relatively of shaft hub, the suitability of helical gear has been improved on the one hand, on the other hand can be changed when body or wheel hub damage simultaneously.

Description

Cylindrical helical gear

Technical Field

The utility model belongs to the technical field of the gear technique and specifically relates to a cylinder helical gear is related to.

Background

Helical gears are not completely helical gears, and it should be said that helical gears are the meshing mode of two helical gears, and are distinguished by the difference of the spatial transmission directions, and ordinary spur gears enter into meshing along the tooth width at the same time, so that impact vibration noise is generated, and transmission is not stable. The helical gear transmission is superior to straight gear transmission, and the center distance can be compact for high-speed heavy load. The helical gear speed reducer is a novel speed reduction transmission device. The design concept of optimization and advanced module combination system is adopted, the device has the advantages of small volume, light weight, large transmission torque, stable starting and fine transmission ratio grading, and can be connected at will and selected from various installation positions according to the requirements of users.

The existing helical gear comprises a body, a gear tooth part is arranged on the outer peripheral surface of the body, a shaft hub connected with the outside is arranged in the body, the shaft hub and the body are integrally formed, the applicability of the helical gear is reduced, and meanwhile, when the helical gear is damaged, the body and the wheel hub are required to be completely replaced, so that resource waste is caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve current helical gear and include the body, the body outer peripheral face is provided with wheel tooth portion, this internal shaft hub with external connection that is provided with, wherein shaft hub and body be integrated into one piece, just reduced the suitability of helical gear, when helical gear damages, just need all change body and wheel hub, just so cause the problem of wasting of resources, provide a cylinder helical gear now.

The utility model provides a technical scheme that its technical problem adopted is: a cylindrical helical gear comprises a body and a shaft hub, wherein a gear tooth part is arranged on the outer peripheral surface of the body, the inner peripheral surface of the body is in profile connection with the shaft hub, and a fixing mechanism for fixing the shaft hub on the body is arranged between the shaft hub and the body;

the fixing mechanism comprises a fixture block, a through hole matched with the shaft hub is arranged on the body, a limiting shaft shoulder is arranged at one end of the shaft hub, the shaft hub is arranged in the through hole, one end of the limiting shaft shoulder is abutted against one end of the body, a notch is formed in the outer peripheral surface of the body, the notch is located at one end, far away from the limiting shaft shoulder, of the body, the notch is radially arranged along the body and communicated with the through hole, the notch is matched with the fixture block, a clamping groove is formed in the outer peripheral surface of the shaft hub, the fixture block is matched with the clamping groove, the notch corresponds to the clamping groove, one end of the fixture block penetrates through the notch and is clamped in the clamping groove, a limiting block is arranged on a contact surface of the fixture block and two sides of the notch, one end of the limiting block in the displacement direction of the fixture block is hinged on the fixture block, the other end of, the limiting groove is matched with the limiting block and extends from one side face of the notch to the outer peripheral face of the body. The profile between the shaft hub and the body is connected, the circumferential displacement of the shaft hub on the body is limited, the one end of the body is supported by the limiting shaft shoulder at one end of the shaft hub, the other end of the body is clamped on the shaft hub by the clamping block, the axial displacement of the shaft hub on the body is limited, the shaft hub is fixed on the body, the shaft hub can be detached relative to the body, the applicability of the helical gear is improved, and meanwhile, the shaft hub can be replaced when the body or the wheel hub is damaged.

In order to facilitate the card to establish between control fixture block and the body, furtherly, the pin joint of stopper is located the one end that the fixture block is close to the shaft hub, the one end that the stopper is located the fixture block lateral surface is the inclined plane, the inclined plane is the inclined plane that the downward sloping set up gradually by the stopper pin joint to the stopper other end on the inclined plane. The inclined plane is arranged on one side of the limiting block, the inclined plane is in contact with the notch and forces the limiting block to rotate, and the inclined plane plays a guiding role.

In order to realize the profile connection between axle hub and the body, furtherly, a plurality of first sand grips have been seted up along its axial to the body inner peripheral surface, be provided with on the outer peripheral face of axle hub with first sand grip assorted first recess, the body is located to be provided with the second recess between the adjacent two first sand grips, be provided with on the axle hub with second recess assorted second sand grip. Through the first sand grip in the through-hole on the body and the first recess on the shaft hub to and the cooperation of second recess and second sand grip, thereby restricted the axial displacement of shaft hub on the body.

The utility model has the advantages that: when the cylindrical helical gear of the utility model is used, the molded surface between the shaft hub and the body is connected, thereby limiting the circumferential displacement of the shaft hub on the body, meanwhile, the limiting shaft shoulder at one end of the shaft hub is propped against one end of the body, the other end of the body is clamped on the shaft hub by a clamping block, thereby limiting the axial displacement of the shaft hub on the body, fixing the shaft hub on the body and detaching the shaft hub relative to the body, on one hand improving the applicability of the helical gear, meanwhile, the body or the wheel hub can be replaced when damaged, thereby avoiding the situation that the existing helical gear comprises a body, the peripheral surface of the body is provided with a gear tooth part, a shaft hub connected with the outside is arranged in the body, the shaft hub and the body are integrally formed, so that the applicability of the helical gear is reduced, and the body and the hub are required to be completely replaced when the helical gear is damaged, so that the problem of resource waste is caused.

Drawings

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

Fig. 1 is a front view of the present invention;

fig. 2 is a rear view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a front view of the body of the present invention;

fig. 5 is a left side view of the body of the present invention;

fig. 6 is a rear view of the body of the present invention;

figure 7 is a front view of the central hub of the present invention;

figure 8 is a top view of the central hub of the present invention;

FIG. 9 is a front view of the fixture block of the present invention;

in the figure: 1. the body, 101, through-hole, 2, axle hub, 3, fixture block, 4, spacing shaft shoulder, 5, notch, 6, draw-in groove, 7, spacing groove, 8, stopper, 9, spring, 10, first sand grip, 11, first recess, 12, second sand grip, 13, second recess.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1-9, a cylindrical helical gear comprises a body 1 and a hub 2, wherein a gear tooth portion is arranged on the outer peripheral surface of the body 1, the inner peripheral surface of the body 1 is in profile connection with the hub 2, and a fixing mechanism for fixing the hub 2 on the body 1 is arranged between the hub 2 and the body 1;

the fixing mechanism comprises a clamping block 3, a through hole 101 matched with the shaft hub 2 is arranged on the body 1, a limiting shaft shoulder 4 is arranged at one end of the shaft hub 2, the shaft hub 2 is arranged in the through hole 101, one end of the limiting shaft shoulder 4 abuts against one end of the body 1, a notch 5 is formed in the outer peripheral surface of the body 1, the notch 5 is located at one end, far away from the limiting shaft shoulder 4, of the body 1, the notch 5 is radially arranged along the body 1 and communicated with the through hole 101, the notch 5 is matched with the clamping block 3, a clamping groove 6 is formed in the outer peripheral surface of the shaft hub 2, the clamping block 3 is matched with the clamping groove 6, the notch 5 and the clamping groove 6 are correspondingly arranged, one end of the clamping block 3 penetrates through the notch 5 and is clamped in the clamping groove 6, a limiting block 8 is arranged on a contact surface of the clamping block 3 and two sides of the notch 5, and one end of the, the other end protrusion of stopper 8 in the lateral surface of fixture block 3, stopper 8 is kept away from and is provided with spring 9 between one end of pin joint and the fixture block 3, be provided with on the both sides face of notch 5 with stopper 8 assorted spacing groove 7, spacing groove 7 extends to the outer peripheral face of body 1 by a side of notch 5.

The pin joint of stopper 8 is located the one end that fixture block 3 is close to shaft hub 2, the one end that stopper 8 is located 3 lateral surfaces of fixture block is the inclined plane, the inclined plane is the inclined plane that the downward sloping set up gradually by stopper 8 pin joint to the stopper 8 other end.

A plurality of first sand grips 10 have been seted up along its axial to the inner peripheral surface of body 1, be provided with on the outer peripheral surface of axle hub 2 with first sand grip 10 assorted first recess 11, body 1 is located and is provided with second recess 13 between the adjacent two first sand grips 10, be provided with on the axle hub 2 with second recess 13 assorted second sand grip 12.

When the cylindrical helical gear is installed, firstly, the first raised line 10 in the through hole 101 on the body 1 is corresponding to and inserted into the first groove 11 on the shaft hub 2, and the second groove 13 in the through hole 101 is corresponding to and inserted into the second raised line 12 on the shaft hub 2, so that the circumferential limit of the shaft hub 2 on the body 1 is realized, the limit shaft shoulder 4 at one end of the shaft hub 2 is abutted on the body 1, meanwhile, the clamping groove 6 on the shaft hub 2 is corresponding to the notch 5 on the body 1, at the moment, the clamping block 3 is inserted corresponding to the notch 5, along with the insertion of the clamping block 3, the inclined plane of the limit block 8 is contacted with the notch 5, the limit block 8 rotates gradually under the guiding action of the inclined plane and extrudes the spring 9, so that the limit block 8 is contracted into the clamping block 3, when the limit block 8 on the clamping block 3 is corresponding to the limit groove 7, at the moment, the limit block 8 is not contacted with the side surface, therefore, the limiting block 8 is clamped in the limiting groove 7, the clamping block 3 is clamped on the body 1, the axial limiting of the clamping block 3 on the shaft hub 2 is realized, and the shaft hub 2 is fixed on the body 1;

when dismantling, stretch into spacing groove 7 through external instrument to promote stopper 8 and rotate on fixture block 3, make stopper 8 extrusion spring 9, in stopper 8 contracts fixture block 3, pulling fixture block 3, fixture block 3 breaks away from body 1, again with shaft hub 2 pull out body 1 can, accomplish the dismantlement of shaft hub 2.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A cylindrical helical gear, characterized by: the wheel hub comprises a body (1) and a hub (2), wherein a wheel tooth part is arranged on the outer peripheral surface of the body (1), the inner peripheral surface of the body (1) is in molded surface connection with the hub (2), and a fixing mechanism for fixing the hub (2) on the body (1) is arranged between the hub (2) and the body (1);

the fixing mechanism comprises a clamping block (3), a through hole (101) matched with the shaft hub (2) is formed in the body (1), a limiting shaft shoulder (4) is arranged at one end of the shaft hub (2), the shaft hub (2) is arranged in the through hole (101), one end of the limiting shaft shoulder (4) abuts against one end of the body (1), a notch (5) is formed in the outer peripheral surface of the body (1), the notch (5) is located at one end, far away from the limiting shaft shoulder (4), of the body (1), the notch (5) is radially arranged along the body (1) and communicated with the through hole (101), the notch (5) is matched with the clamping block (3), a clamping groove (6) is formed in the outer peripheral surface of the shaft hub (2), the clamping block (3) is matched with the clamping groove (6), the notch (5) is correspondingly arranged with the clamping groove (6), one end of the clamping block (3) penetrates through the notch (5) and is clamped in the clamping groove (6), be provided with stopper (8) on fixture block (3) and on the contact surface of notch (5) both sides, stopper (8) articulate on fixture block (3) along the one end of fixture block (3) displacement direction, the other end protrusion of stopper (8) is in the lateral surface of fixture block (3), stopper (8) are kept away from between the one end of pin joint and fixture block (3) and are provided with spring (9), be provided with on the both sides face of notch (5) with stopper (8) assorted spacing groove (7), spacing groove (7) extend to the outer peripheral face of body (1) by a side of notch (5).

2. The cylindrical helical gear of claim 1, wherein: the pin joint of stopper (8) is located the one end that fixture block (3) are close to shaft hub (2), the one end that stopper (8) are located fixture block (3) lateral surface is the inclined plane, the inclined plane is the inclined plane of downward sloping setting gradually by stopper (8) pin joint to stopper (8) other end.

3. The cylindrical helical gear according to claim 1 or 2, wherein: a plurality of first sand grips (10) have been seted up along its axial to body (1) inner peripheral surface, be provided with on the outer peripheral face of axle hub (2) with first sand grip (10) assorted first recess (11), body (1) are located and are provided with second recess (13) between adjacent two first sand grips (10), be provided with on axle hub (2) with second recess (13) assorted second sand grip (12).