CN211503958U

CN211503958U - Gear measuring instrument for detecting worm

Info

Publication number: CN211503958U
Application number: CN202020050165.0U
Authority: CN
Inventors: 王海燕
Original assignee: Jingzhou Huali Machinery Co ltd
Current assignee: Jingzhou Huali Machinery Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-15
Anticipated expiration: 2030-01-10

Abstract

A gear measuring instrument for detecting a worm comprises a shell, wherein a gear is detachably connected to the shell, the gear is rotatably connected with the shell, a pointer is rotatably arranged on the surface of the shell, when the gear measuring instrument is used, the shell can be held, four fingers and a thumb are respectively inserted into two handles, the taking is convenient, the stability during measurement is improved, when the tooth pitch of the worm is measured, the gear is meshed with a holding rod, then the worm is slowly rotated, the worm can drive the gear to rotate when rotating, the pointer can be driven to rotate by the gear to rotate, the angle of the gear rotation can be read by the angle of the pointer rotation, whether the tooth pitch of the worm is uniform or not and is qualified or not can be judged by observing the angle of the pointer rotation corresponding to a small grid in each time of worm rotation, the rotation of the worm is converted into the rotation of the gear, and the rotation ring of the gear is the rotation of the pointer, the rotation angle of the pointer can be visually observed, so that the result is more visual.

Description

Gear measuring instrument for detecting worm

Technical Field

The utility model belongs to the technical field of the worm processing technique and specifically relates to a gear measuring apparatu for detecting worm is related to.

Background

The worm refers to a gear which has one or more spiral teeth and is meshed with a worm wheel to form a staggered shaft gear pair. The indexing curved surface can be a cylindrical surface, a conical surface or a circular ring surface, and has four categories of an Archimedes worm, an involute worm, a normal straight profile worm and a conical surface enveloping cylindrical worm. In the prior art, most of the worm is measured by directly using a ruler when the worm is detected to be qualified, and the measurement of the pitch of the worm is inconvenient, so that a gear measuring instrument for detecting the worm is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a gear measuring apparatu for detecting the worm is used for solving above-mentioned problem.

In order to achieve the purpose, the utility model relates to a gear measurement appearance for detecting worm, which comprises an outer shell, can dismantle on the shell and be connected with the gear, gear and shell rotate and connect, the surface rotation of shell installs the pointer, the axle of pointer and the concentric transmission of axle of gear are connected, rotate on the shell and install the connecting axle, pointer and connecting axle fixed connection, the connecting axle runs through to the back of shell, it is equipped with the perforation to run through on the gear, the head of connecting axle has the screw thread, and the root of connecting axle is that the cross section is regular polygon structure, the shape of perforation and connecting axle root keeps unanimously, the connecting axle passes from the perforation, and the head threaded connection of connecting axle has fixation nut.

Preferably, the housing includes a back plate, the pointer is disposed on the front surface of the back plate, the gear is disposed on the back surface of the back plate, a hollow portion is disposed on the back surface of the back plate, and the gear is disposed in the hollow portion.

Preferably, a transparent dial is fixedly arranged on the shell, and the surface of the shell is fixedly connected with scale paper.

Preferably, the shell is integrally formed with two annular grips, and the two grips are symmetrically arranged on two sides of the shell.

Has the advantages that:

the utility model discloses when using, can hold the shell, four indicate and the thumb inserts respectively in two handles, conveniently take, stability when improving the measurement, when measuring the worm tooth pitch, in the same place gear and holding rod meshing, then slowly rotate the worm, the worm can drive gear revolve in the pivoted, gear revolve can drive the pointer rotation, gear revolve can read out gear revolve's angle through pointer pivoted angle, can judge whether even the tooth pitch of worm can be judged through observing every time the worm rotates the pointer pivoted angle that little check corresponds, whether qualified, convert the rotation of worm into the rotation of gear, the rotation change of ring for the pointer with the rotation of gear, the turned angle of pointer can audio-visual observation come out, make the result more directly perceived.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic view of the present invention.

Fig. 2 is a schematic diagram of the explosion structure of the present invention.

In the figure: 1 shell, 2 gears, 3 pointers, 4 connecting shafts, 5 fixing nuts, 6 transparent dials, 7 graduated paper and 8 grips.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-2.

By figure 1-2, the utility model relates to a gear measurement appearance for detecting worm, which comprises an outer shell 1, can dismantle on the shell 1 and be connected with gear 2, gear 2 rotates with shell 1 and connects, the surface rotation of shell 1 installs pointer 3, the axle of pointer 3 and the concentric transmission of axle of gear 2 are connected, when measuring, gear 2 that corresponds is selected according to the model of worm, with gear 2 and holding rod meshing together, the worm can drive gear 2 and rotate when the pivoted, gear 2 rotates and to drive pointer 3 and rotate, can read out gear 2 pivoted angle through pointer 3 pivoted angles, whether even, whether qualified can judge the tooth pitch of worm through observing every time the worm rotates the 3 pivoted angles of pointer that a little check corresponds.

Rotate on the shell 1 and install connecting axle 4, 4 fixed connection of pointer 3 and connecting axle, connecting axle 4 runs through to the back of shell 1, it is equipped with the perforation to run through on the gear 2, the head of connecting axle 4 has the screw thread, and the root of connecting axle 4 is the cross section and is regular polygon structure, the shape of perforation and 4 roots of connecting axle keeps unanimous, connecting axle 4 passes from the perforation, and the head threaded connection of connecting axle 4 has fixation nut 5, gear 2 can dismantle the back of connection at shell 1, can select corresponding gear 2 according to the model of holding rod, when rotating the worm, if the tooth of worm rotates a check every time, pointer 3 that corresponds rotates and is a invariable numerical value, the tooth pitch of worm is qualified then.

The shell 1 comprises a back plate, the pointer 3 is arranged on the front face of the back plate, the gear 2 is arranged on the back face of the back plate, a hollow-out portion is arranged on the back face of the back plate, and the gear 2 is arranged in the hollow-out portion.

Fixed transparent dial plate 6 that is equipped with on the shell 1, and the fixed surface of shell 1 is connected with scale paper 7, converts the rotation of worm into the rotation of gear 2, and the rotation change of gear 2 is pointer 3's rotation, and pointer 3's turned angle can audio-visual observation come out, makes the result more directly perceived.

Integrated into one piece has annular handle 8 on the shell 1, and the quantity of handle 8 is two, and two handle 8 symmetries are installed in the both sides of shell 1, when using, can hold shell 1, and four fingers and thumb insert respectively in two handle 8, conveniently take, stability when improving the measurement.

The working principle is as follows: the utility model discloses when using, can hold shell 1, four indicate and the thumb inserts respectively in two handles 8, conveniently take, stability when improving the measurement, when measuring the worm tooth pitch, in the same place gear 2 and holding rod meshing, then slowly rotate the worm, the worm can drive gear 2 and rotate in the pivoted, gear 2 rotates and can drive pointer 3 and rotate, can read out gear 2 pivoted angle through pointer 3 pivoted angle, whether even can judge the tooth pitch of worm through observing 3 pivoted angles of pointer that a little check of worm rotation corresponds at every turn, whether qualified, convert the rotation of worm into gear 2's rotation, the rotation change of gear 2 is pointer 3's rotation, pointer 3's turned angle can audio-visual observation come out, make the result more directly perceived.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a gear measuring apparatu for detecting worm, which comprises a housing (1), can dismantle on shell (1) and be connected with gear (2), gear (2) and shell (1) rotate to be connected, the surperficial rotation of shell (1) installs pointer (3), the axle of pointer (3) and the concentric transmission of axle of gear (2) are connected, rotate on shell (1) and install connecting axle (4), pointer (3) and connecting axle (4) fixed connection, connecting axle (4) run through to the back of shell (1), it is equipped with the perforation to run through on gear (2), the head of connecting axle (4) has the screw thread, and the root of connecting axle (4) is that the cross section is regular polygon structure, the shape of perforation and connecting axle (4) root keeps unanimous, connecting axle (4) are followed the perforation and are passed, and the head part of the connecting shaft (4) is connected with a fixed nut (5) in a threaded manner.

2. The gear measuring instrument for detecting a worm according to claim 1, characterized in that the housing (1) comprises a back plate, the pointer (3) is arranged on the front side of the back plate, the gear (2) is arranged on the back side of the back plate, a hollow portion is arranged on the back side of the back plate, and the gear (2) is arranged in the hollow portion.

3. The gear measuring instrument for detecting the worm according to claim 1, characterized in that a transparent dial (6) is fixedly arranged on the housing (1), and a scale paper (7) is fixedly connected to the surface of the housing (1).

4. The gear measuring instrument for detecting worm according to claim 1, characterized in that the housing (1) is integrally formed with two annular grips (8), and the two grips (8) are symmetrically mounted on two sides of the housing (1).