CN217081328U

CN217081328U - Self-locking gear

Info

Publication number: CN217081328U
Application number: CN202220384591.7U
Authority: CN
Inventors: 徐法俭
Original assignee: Individual
Current assignee: Weihai Witwin Vacuum Science & Technology Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-07-29
Anticipated expiration: 2032-02-24

Abstract

The utility model relates to the technical field of gears in mechanical transmission, in particular to a self-locking gear, which comprises a transmission gear, a gear pressure plate, an inner gear taper sleeve and a pre-tightening bolt, wherein the transmission gear is connected with the gear pressure plate through the pre-tightening bolt, the inner gear taper sleeve is positioned at one side of the transmission gear, the outer wall of the inner gear taper sleeve is in a sharp-horn shape, when the transmission shaft is installed, the transmission shaft is inserted into the installation hole of the transmission gear, one end of the transmission gear is connected with the transmission gear and the gear shaft in a tensioning mode, the transmission gear is more convenient to disassemble, the contact length of the transmission gear and the transmission shaft is increased, the meshing of the gear transmission pair is more precise, the transmission is more reliable, one end of the transmission gear is connected with the transmission gear and the gear shaft in a tensioning mode, the deformation of the original gear, which is fastened with the transmission shaft through a tensioning sleeve or key connection, is reduced, and the transmission precision of the gear pair is improved.

Description

Self-locking gear

Technical Field

The utility model relates to a gear technical field in the mechanical transmission specifically is a self-locking gear.

Background

Gear drive is widely applied to machinery industry, and gear drive's characteristics are: the gear transmission is stable, the transmission ratio is accurate, the work is reliable, the efficiency is high, the service life is long, and the used power, speed and size ranges are large. The connection mode of the common gear transmission and the transmission shaft generally adopts a key or a tensioning sleeve and the like for fastening connection so as to transmit motion and power, the key connection mode has the defects of inconvenient gear phase adjustment and the tensioning sleeve connection mode has the defect of lengthening the common normal line length of the gear influenced by tensioning force.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model provides a self-locking gear.

For solving above-mentioned technical problem, for this reason the utility model provides a self-locking gear, including drive gear, gear pressure disk, gear inner taper sleeve and pretension bolt, drive gear passes through pretension bolted connection with the gear pressure disk, and the gear inner taper sleeve is located drive gear's one side, and the outer wall of gear inner taper sleeve is the closed angle form.

Preferably, the outer wall of the gear pressure plate is fixedly connected with a positioning ring, the right end of the transmission gear is fixedly connected with a plurality of reinforcing shafts, each reinforcing shaft penetrates through the positioning ring, each reinforcing shaft is connected with a nut through threads, and the left end of each nut is tightly attached to the right end of the positioning ring.

Preferably, the two gear inner taper sleeves are in opposite 180-degree semicircular taper pipe shapes.

Preferably, the inner hole of the gear pressure plate and the outer wall of the inner taper sleeve have the same taper.

Preferably, the gear pressure plate is connected with the transmission gear through six pre-tightening bolts.

Preferably, an elastic pad is arranged between the outer wall of the inner taper sleeve and the inner wall of the gear pressure plate.

Preferably, the transmission gear and one end close to the gear pressure plate are connected with the opposite end of the inner taper sleeve, and the inner taper sleeve and the transmission gear are integrally arranged.

Compared with the prior art, the utility model provides a self-locking gear possesses following beneficial effect:

1. when the transmission shaft is installed, the transmission shaft is inserted into the installation hole of the transmission gear, one end of the transmission gear is connected with the transmission gear and the gear shaft in a tensioning mode, the transmission gear is more convenient to disassemble, the contact length of the transmission gear and the transmission shaft is increased, the meshing of a gear transmission pair is more precise, and the transmission is more reliable.

2. One end of the transmission gear is connected with the transmission gear and the gear shaft in a tensioning mode, so that deformation of the original gear, which is generated by fastening the original gear and the transmission shaft through a tensioning sleeve or key connection, is reduced, and the transmission precision of the gear pair is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the cross-sectional structure of the present invention;

fig. 3 is a right side view structure diagram of the middle transmission gear and the inner taper sleeve of the present invention.

The symbols in the drawings are marked as follows:

1. a transmission gear; 2. a gear pressure plate; 3. pre-tightening the bolts; 4. an inner taper sleeve; 5. an elastic pad; 6. a positioning ring; 7. reinforcing the shaft; 8. and a nut.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Example (b):

referring to fig. 1-3, the present invention provides a self-locking gear, which includes a transmission gear 1 having an inner taper sleeve 4 at one end, a gear platen 2 having a conical inner hole and six pre-tightening bolts 3, wherein the gear platen 2 and the inner taper sleeve 4 on the gear are pressed by pre-tightening forces of the six pre-tightening bolts 3, threaded ends of the six pre-tightening bolts 3 pass through holes on the gear platen 2 corresponding to the pre-tightening bolts 3, and left portions of the six pre-tightening bolts 3 are connected to a right portion of the transmission gear 1 through threads.

In the embodiment, the inner taper sleeve 4 is in a shape of a semicircular cone which is milled into 180 degrees, the inner taper force of the pre-tightening bolt 3 enables the inner taper sleeve 4 to deform, when the transmission shaft is installed, the transmission shaft is inserted into the middle installation hole of the transmission gear 1 and the inner wall of the inner taper sleeve 4, the inner hole of the inner taper sleeve 4 is tightly contacted with the excircle of the transmission shaft, the transmission gear 1 and the transmission shaft are fastened together, the motion and the power of the shaft are transmitted, the inner taper sleeve 4 and the transmission gear 1 are manufactured into an integral structure, the gear processing is simpler and more convenient, the inner hole of the inner taper sleeve 4 and the inner hole of the gear are formed in a grinding mode at one time, the concentricity precision is higher, the gear transmission is more stable, and the noise of the gear transmission can be reduced; and through screwing up pretension bolt 3, the size of the pretension force of adjustment pretension bolt 3 and between drive gear 1 fastens gear and transmission shaft together, and this kind of structure adjustment is convenient, and easy operation can very big improvement gear installation effectiveness.

In this embodiment, for improving the cooperation intensity of drive gear 1 and gear pressure disk 2 when using, gear pressure disk 2's outer wall fixedly connected with holding ring 6, a plurality of reinforcing shafts 7 of drive gear 1's right-hand member fixedly connected with, each reinforcing shaft 7 all passes holding ring 6, all there is nut 8 through threaded connection on each reinforcing shaft 7, each nut 8's left end all pastes tightly with the right-hand member of holding ring 6, through after the installation, tighten nut 8, make nut 8 paste tight holding ring 6, and then reduce the condition of gear pressure disk 2 lateral shifting.

Wherein, the hole of the gear pressure disk 2 of outer taper sleeve is the same with the outer wall tapering of interior taper sleeve 4, through the binding face that the tapering is the same, the outer taper sleeve of further being convenient for compresses tightly interior taper sleeve 4, is convenient for adjust.

Furthermore, in this embodiment, an elastic pad 5 is disposed between the outer wall of the inner taper sleeve 4 and the inner wall of the gear pressure plate 2, and the elastic pad 5 is a spring piece, and through the elastic force of the elastic pad, a part of pretightening force between the gear pressure plate 2 and the inner taper sleeve 4 is provided, so that the inner taper sleeve 4 is attached to the transmission shaft more tightly.

In the description of the present invention, it is to be understood that the positional or positional relationships, such as the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, are based on the positional or positional relationships illustrated in the drawings and are for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting of the present application.

Further, in the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-locking gear, characterized in that: including drive gear (1), gear pressure disk (2), gear interior taper sleeve (4) and pretension bolt (3), drive gear (1) is connected through pretension bolt (3) with gear pressure disk (2), and gear interior taper sleeve (4) are located one side of drive gear (1), the outer wall of gear interior taper sleeve (4) is the closed angle form.

2. A self-locking gear according to claim 1, wherein: the outer wall fixedly connected with holding ring (6) of gear pressure disk (2), a plurality of reinforcing shafts (7) of right-hand member fixedly connected with of drive gear (1), each reinforcing shaft (7) all pass holding ring (6), each all there is nut (8) through threaded connection on reinforcing shaft (7), each the left end of nut (8) all with the right-hand member of holding ring (6) pastes tightly.

3. A self-locking gear according to claim 1, wherein: the two inner taper sleeves (4) are in a 180-degree semicircular taper pipe shape and are opposite, and a gap is arranged between the two inner taper sleeves (4).

4. A self-locking gear according to claim 3, wherein: the inner hole of the gear pressure plate (2) and the outer wall of the inner taper sleeve (4) have the same taper.

5. A self-locking gear according to claim 1 or 4, wherein: the gear pressure plate (2) is connected with the transmission gear (1) through six pre-tightening bolts (3).

6. A self-locking gear according to claim 5, wherein: an elastic pad (5) is arranged between the outer wall of the inner taper sleeve (4) and the inner wall of the gear pressure plate (2).

7. A self-locking gear according to claim 1, wherein: the transmission gear (1) and one end close to the gear pressure plate (2) are connected with the opposite end of the inner taper sleeve (4), and the inner taper sleeve (4) and the transmission gear (1) are integrally arranged.