CN212431999U

CN212431999U - Gear measuring instrument convenient to adjust

Info

Publication number: CN212431999U
Application number: CN202021344907.7U
Authority: CN
Inventors: 牛祥芸
Original assignee: Shanghai Taixuan Electronic Technology Co ltd
Current assignee: Shanghai Taixuan Electronic Technology Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-01-29
Anticipated expiration: 2030-07-10

Abstract

The utility model relates to the technical field of gears, a gear measuring apparatu convenient to adjust is provided, including fixed plate, spout, well core rod, slide bar, narrow scale mark, wide scale mark, threaded rod, bracing piece, limiting plate, block rubber, rubber strip and friction strip, the open-top of fixed plate is provided with four spouts, well core rod in the top fixedly connected with of fixed plate, the top activity embedding of fixed plate has four slide bars, the top of slide bar all is equipped with a plurality of narrow scale marks, the top of fixed plate is equipped with a plurality of wide scale marks, the equal screw thread embedding of one end of slide bar has the threaded rod. The utility model provides a narrow scale mark and wide scale mark can dock together, when a certain one in narrow scale mark and the wide scale mark is in same position, just can calculate the distance between two limiting plates of gear through the addition and subtraction high accuracy, like vernier caliper among the prior art, and then can measure the diameter of gear by the high accuracy, have the advantage that measurement accuracy is high.

Description

Gear measuring instrument convenient to adjust

Technical Field

The utility model relates to a gear technical field, it is specific relates to a gear measuring apparatu convenient to adjust.

Background

The gear is a mechanical element with a gear on a wheel rim for continuously meshing and transmitting motion and power, generally comprises gear teeth, a tooth socket, an end face, a normal face, an addendum circle, a dedendum circle, a base circle and a reference circle, wherein the gear teeth are each convex part used for meshing on the gear, the convex parts are generally arranged in a radial shape, the gear teeth on a matched gear are mutually contacted, the gear can continuously mesh and operate, along with the development of a gear processing technology, the detection requirement of the gear is more and more, and a gear measuring instrument is generally applied to a measuring room and a production workshop;

the gear measuring instrument in the prior art cannot measure the diameter of the gear with high precision, and has the problems of insufficient measuring precision, inconvenient adjustment, inconvenient use and the like. Therefore, further research needs to be carried out on the basis of the gear measuring instrument, and the gear measuring instrument convenient to adjust is provided.

Disclosure of Invention

The gear measuring instrument convenient to adjust solves the problems that the diameter of the gear cannot be measured with high precision, the measurement precision is insufficient, the adjustment is inconvenient, and the use is inconvenient, and provides the gear measuring instrument convenient to adjust.

The utility model provides a following technical scheme: a gear measuring instrument convenient to adjust comprises a fixed plate, a chute, a central rod, a slide rod, narrow scale lines, wide scale lines, a threaded rod, a support rod, a limit plate, a rubber block, a rubber strip and a friction strip, the top opening of the fixed plate is provided with four sliding chutes, the top of the fixed plate is fixedly connected with a central rod, four sliding rods are movably embedded in the top of the fixed plate, a plurality of narrow scale marks are arranged on the tops of the sliding rods, the top of the fixed plate is provided with a plurality of wide scale marks, one end of the slide bar is embedded with a threaded rod through threads, the tops of the sliding rods are fixedly connected with supporting rods, one ends of the supporting rods are fixedly connected with limiting plates, the bottom of threaded rod all bonds through the structure glue has the block rubber, the top embedding of fixed plate bonds and has eight rubber strips, the equal fixedly connected with friction strip in inboard of limiting plate.

Further preferred embodiments: the sliding grooves, the sliding rods, the threaded rods, the rubber strips, the friction strips, the supporting rods and the rubber blocks are arranged in a cross mode, the center rods are used as circle centers to surround the tops of the fixing plates, and the sliding rods are in an isosceles trapezoid shape.

Further preferred embodiments: the limiting plates are all arc-shaped, the four limiting plates are arranged in a cross mode and surround the top of the fixing plate by taking the central rod as a circle center, and the radian of the limiting plates is 5 degrees.

Further preferred embodiments: narrow scale mark and wide scale mark interval equidistance respectively set up on slide bar and fixed plate, and the interval between the narrow scale mark is nine tenth of the interval between the wide scale mark to the rubber strip hugs closely in the side of slide bar.

Further preferred embodiments: the side face of the sliding rod and the horizontal plane form an included angle of 60 degrees, the sliding rod is matched with the sliding groove, and the sliding rod is located in the sliding groove.

Further preferred embodiments: the friction strip is made of rubber, the friction strip and the rubber strip are both in a curved surface shape, and the supporting rod is in an L shape.

Further preferred embodiments: the rubber block supports against the inner wall of the sliding groove, the threaded rod is perpendicular to the sliding rod, and the supporting rod is perpendicular to the limiting plate and the sliding rod.

Has the advantages that: the threaded rod in the utility model can move downwards in the sliding rod, the rubber block at the bottom of the threaded rod is abutted against the inner wall of the sliding groove, the sliding rod is fixed in the sliding groove, the limiting plate can be very conveniently fixed on the fixing plate, the gear diameter measuring device has the advantages of convenient adjustment and convenient use, the narrow scale mark and the wide scale mark can be butted together, when one of the narrow scale mark and the wide scale mark is positioned at the same position, the distance between the two limiting plates of the gear can be calculated by an addition and subtraction method with high precision, the gear diameter can be further measured with high precision as the vernier caliper in the prior art, the friction strip can increase the friction force between the sliding rod and the fixing plate, the sliding rod is more conveniently and firmly fixed in the fixing plate, the sliding groove can limit the sliding rod, and the sliding rod can only move along the sliding groove, the sliding rod can not be separated from the sliding groove from the lower right to the upper side, and the sliding of the sliding rod is facilitated.

Drawings

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

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

Fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

Fig. 4 is an enlarged schematic view of the present invention at B in fig. 2.

In FIGS. 1-4: the device comprises a fixed plate 1, a sliding chute 2, a central rod 3, a sliding rod 4, narrow scale lines 5, wide scale lines 6, a threaded rod 7, a supporting rod 8, a limiting plate 9, a rubber block 10, a rubber strip 11 and a friction strip 12.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1 to 4, in the embodiment of the present invention, a gear measuring instrument convenient for adjustment comprises a fixing plate 1, sliding grooves 2, a central rod 3, a sliding rod 4, narrow scale marks 5, wide scale marks 6, a threaded rod 7, a support rod 8, a limit plate 9, rubber blocks 10, rubber strips 11 and friction strips 12, wherein the opening at the top of the fixing plate 1 is provided with four sliding grooves 2, the top of the fixing plate 1 is fixedly connected with the central rod 3, the top of the fixing plate 1 is movably embedded with four sliding rods 4, the top of each sliding rod 4 is provided with a plurality of narrow scale marks 5, the top of the fixing plate 1 is provided with a plurality of wide scale marks 6, one end of each sliding rod 4 is embedded with the threaded rod 7, the top of each sliding rod 4 is fixedly connected with the support rod 8, one end of each support rod 8 is fixedly connected with the limit plate 9, the bottom of each threaded rod 7 is bonded with the rubber block 10 through, the inner sides of the limit plates 9 are fixedly connected with friction strips 12.

Preferably, spout 2, slide bar 4, threaded rod 7, rubber strip 11, rubbing strip 12, bracing piece 8 and rubber block 10 all are the cross and arrange and use well core rod 3 to encircle the top at fixed plate 1 as the centre of a circle, and slide bar 4 is the isosceles trapezoid shape, limiting plate 9 all is circular-arcly, and four limiting plates 9 are the cross and arrange and use well core rod 3 to encircle the top at fixed plate 1 as the centre of a circle, and limiting plate 9's radian is 5, the fixed gear that four limiting plates 9 can be fine, and then improve the precision of gear diameter measurement.

Preferably, the narrow scale lines 5 and the wide scale lines 6 are respectively arranged on the sliding rod 4 and the fixed plate 1 at equal intervals, the distance between the narrow scale lines 5 is nine-tenth of the distance between the wide scale lines 6, the rubber strip 11 is tightly attached to the side surface of the sliding rod 4, the narrow scale lines 5 and the wide scale lines 6 can be in butt joint, when one of the narrow scale lines 5 and the wide scale lines 6 is located at the same position, the distance between the two limiting plates 9 of the gear can be calculated with high precision through an addition and subtraction method, the diameter of the gear can be measured with high precision like a vernier caliper in the prior art, and the gear diameter measuring device has the advantage of high measuring precision.

Preferably, the included angle between the side surface of the sliding rod 4 and the horizontal plane is 60 degrees, the sliding rod 4 is matched with the sliding groove 2, the sliding rod 4 is positioned in the sliding groove 2, the sliding groove 2 can limit the sliding rod 4, and the sliding rod 4 can only move along the sliding groove 2 and cannot be separated from the sliding groove 2 from the lower right side and the upper side.

Preferably, the rubbing strip 12 is made of rubber, the rubbing strip 12 and the rubber strip 11 are both curved, the supporting rod 8 is L-shaped, and the rubbing strip 12 can increase the friction force between the sliding rod 4 and the fixing plate 1, so that the sliding rod 4 is more conveniently and firmly fixed in the fixing plate 1.

Preferably, the rubber block 10 supports the inner wall of the sliding groove 2, the threaded rod 7 is perpendicular to the sliding rod 4, the supporting rod 8 is perpendicular to the limiting plate 9 and the sliding rod 4, the threaded rod 7 can move downwards in the sliding rod 4, the rubber block 10 at the bottom of the threaded rod 7 supports the inner wall of the sliding groove 2, the sliding rod 4 is fixed in the sliding groove 2, the limiting plate 9 can be fixed on the fixing plate 1 very conveniently, and the rubber block fixing device has the advantages of being convenient to adjust and use.

The working principle is as follows: firstly, the middle of a gear penetrates through a central rod 3, then a threaded rod 7 is pushed to enable a sliding rod 4 to slide in a sliding chute 2, a limit plate 9 is abutted on the gear, then the other three limit plates 9 are abutted on the gear according to the operation, then the threaded rod 7 is rotated to enable the threaded rod 4 to move downwards in the sliding rod 4, a rubber block 10 at the bottom of the threaded rod 7 is abutted on the sliding chute 2, a sliding rod 4 is fixed in a fixed plate 1, the gear is fixed between four limit plates 9, a friction strip 12 is positioned in the gear teeth of the gear, then narrow scale marks 5 on four sliding rods 4 are observed, one of the narrow scale marks 5 on the sliding rod 4 is abutted with a wide scale mark 6 on the fixed plate 1 as shown in the attached figure 4 of the specification, an addition and subtraction method is carried out according to the calculation mode of a vernier caliper, the position of the sliding rod 4 in the fixed plate 1 is calculated, the diameter of the gear can be measured.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The utility model provides a gear measuring apparatu convenient to adjust, includes fixed plate (1), spout (2), well core rod (3), slide bar (4), narrow scale mark (5), wide scale mark (6), threaded rod (7), bracing piece (8), limiting plate (9), block rubber (10), rubber strip (11) and friction strip (12), its characterized in that: the top opening of the fixed plate (1) is provided with four sliding chutes (2), the top of the fixed plate (1) is fixedly connected with a central rod (3), four sliding rods (4) are movably embedded in the top of the fixed plate (1), a plurality of narrow scale marks (5) are arranged on the tops of the sliding rods (4), the top of the fixed plate (1) is provided with a plurality of wide scale marks (6), one end of the slide bar (4) is embedded with a threaded rod (7) in a threaded manner, the tops of the sliding rods (4) are fixedly connected with supporting rods (8), one ends of the supporting rods (8) are fixedly connected with limiting plates (9), the bottom of the threaded rod (7) is bonded with a rubber block (10) through structural adhesive, eight rubber strips (11) are embedded and bonded at the top of the fixed plate (1), the inner sides of the limiting plates (9) are fixedly connected with friction strips (12).

2. The gear meter of claim 1, wherein: the rubber block friction device is characterized in that the sliding grooves (2), the sliding rods (4), the threaded rods (7), the rubber strips (11), the friction strips (12), the supporting rods (8) and the rubber blocks (10) are arranged in a cross mode, the center rods (3) are used as circle centers to surround the top of the fixing plate (1), and the sliding rods (4) are in an isosceles trapezoid shape.

3. The gear meter of claim 1, wherein: the limiting plates (9) are all arc-shaped, the four limiting plates (9) are arranged in a cross manner and surround the top of the fixing plate (1) by taking the central rod (3) as a circle center, and the radian of the limiting plates (9) is 5 degrees.

4. The gear meter of claim 1, wherein: narrow scale mark (5) and wide scale mark (6) are respectively the equidistant setting in slide bar (4) and fixed plate (1) of interval, and the interval between narrow scale mark (5) is nine tenth of interval between wide scale mark (6) to rubber strip (11) hug closely in the side of slide bar (4).

5. The gear meter of claim 1, wherein: the included angle between the side surface of the sliding rod (4) and the horizontal plane is 60 degrees, the sliding rod (4) is matched with the sliding groove (2), and the sliding rod (4) is positioned in the sliding groove (2).

6. The gear meter of claim 1, wherein: the friction strip (12) is made of rubber, the friction strip (12) and the rubber strip (11) are both curved, and the support rod (8) is L-shaped.

7. The gear meter of claim 1, wherein: the rubber block (10) abuts against the inner wall of the sliding groove (2), the threaded rod (7) is perpendicular to the sliding rod (4), and the supporting rod (8) is perpendicular to the limiting plate (9) and the sliding rod (4).