CN217424222U

CN217424222U - Universal external tooth cross-spherical distance detection device

Info

Publication number: CN217424222U
Application number: CN202220843511.XU
Authority: CN
Inventors: 李腾; 闫鹏辉; 张录; 高军军; 余功炎
Original assignee: Shaanxi Fast Gear Co Ltd
Current assignee: Shaanxi Fast Gear Co Ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-09-13
Anticipated expiration: 2032-04-12

Abstract

The utility model discloses a ball pitch detection device is striden to general external tooth belongs to gear machining and makes the field, aims at solving and when adopting the gauge stick to measure the stick distance of striding of taking the big helix angle helical gear of cydariform among the prior art, leads to measuring unsafe defective nature technical problem. It is compatible with various parts with different modulus and tooth width. Compared with the measurement of a measuring rod, the measurement of the measuring ball with the drum-shaped large helical angle is more accurate in bar span, and the push pin type tooth socket self-adaptive structure is suitable for the tooth socket width of most of the existing shaft tooth parts; the double-nut locking and fixing structure can prevent the V-shaped supporting blocks from moving in the measuring process and can also adjust the heights of the V-shaped supporting blocks at two sides; a T-shaped groove locking method and a double-nut adjusting and fixing structure are provided, stepless adjustment in the width direction and the height direction is achieved, and the problem of universality of a detection device is solved; the V-shaped supporting block can stably measure the span ball distance, and the influence of artificial inclination factors on the measurement result is eliminated.

Description

Universal external tooth cross-spherical distance detection device

Technical Field

The utility model belongs to gear machining makes the field, relates to a ball distance detection device is striden to general external tooth.

Background

It is well known that in the field of gear manufacturing, tooth thickness detection is often faced with. The parameters of the span distance, the common normal line, the tooth thickness and the deflection coefficient can be mutually converted. Because the tooth profile of the gear is generally an involute, the tooth thickness on the reference circle is difficult to directly measure. Therefore, the common detection methods are divided into common normal line detection and cross-spherical distance detection. The detection method of the cross-spherical distance is more accurate than the common normal line detection, so the detection of the cross-spherical distance is generally used as the standard.

At present, a measuring rod and a micrometer are commonly used in the gear machining and manufacturing industry to measure the span of the ball of the gear. With the development of new energy, AT and other novel transmission devices, the requirements on high rotating speed and large torque of the gear are further improved. The bearing capacity of the helical gear with the drum shape is far better than that of a straight gear, and the helical gear with the drum shape is a development direction of a future high-end gear. The gear span bar distance with the drum-shaped modification is measured in the middle of the tooth width, and the measurement of the measuring bar is very inaccurate, so that great inconvenience is brought to field measurement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem among the prior art, provide a ball pitch detection device is striden to general external tooth, aim at solving and measuring the span stick distance of taking the big helix angle helical gear of cydariform when adopting the gauge stick to measure among the prior art, lead to measuring unsafe defective technical problem.

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

the utility model provides a general external tooth span ball distance detection device, which comprises a micrometer, a V-shaped supporting block and a measuring ball; two V-shaped supporting blocks and two measuring balls are arranged;

the base is arranged below the drum-shaped helical gear with the large helical angle, a groove is formed in the upper surface of the base, supporting screws are vertically arranged on two sides of the drum-shaped helical gear with the large helical angle, and the lower bottom surfaces of the two supporting screws are located in the groove; adjusting nuts are sleeved on the supporting screw rods;

one side of the V-shaped supporting block is provided with a V-shaped groove for fixing the micrometer, and the other side of the V-shaped supporting block is provided with a first through hole for fixing the supporting screw rod; the two V-shaped supporting blocks are respectively sleeved on the two supporting screws, and the two V-shaped supporting blocks are both positioned above the adjusting nut; one side of the measuring ball is attached to the micrometer, and the other side of the measuring ball is attached to the tooth groove of the helical gear with the drum-shaped large helical angle.

Preferably, two of the adjusting lock nuts are arranged at the same height.

Preferably, a plurality of second through holes are formed below the V-shaped groove, and push pins for fixing the measuring balls are installed in the second through holes.

Preferably, there are 7 second through holes.

Preferably, the support screws are respectively sleeved with a fixing nut, and the two fixing nuts are respectively located above the two V-shaped support blocks.

Preferably, two of the fixing nuts are arranged at the same height.

Preferably, the groove is of a T-shaped structure.

Preferably, two sliding blocks are symmetrically installed in the groove, a third through hole for fixing the supporting screw rod is formed in one side of each sliding block, a fourth through hole is formed in the other side of each sliding block, and a locking screw for fixing the base and the sliding blocks is installed in the fourth through hole.

Preferably, the slider is of a square structure or a rectangular structure.

Preferably, the height of the belt drum-shaped helical gear with the large helix angle is smaller than that of the supporting screw.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a general external tooth span ball distance detection device, through installing the base in the below of taking the big helix angle helical gear of cydariform to set up flutedly on the upper surface of base, all install the supporting screw perpendicularly in the both sides of taking the big helix angle helical gear of cydariform, can install the supporting screw in the recess; the adjusting nut is arranged on the supporting screw rod, and the height direction can be adjusted by adjusting the height of the adjusting nut; the V-shaped supporting block is arranged on the adjusting nut, the micrometer can be fixed on the V-shaped supporting block, and the manual measurement error caused by the fact that an operator holds the micrometer to incline can be eliminated; one side of the measuring ball is attached to a tooth groove of the helical gear with the drum-shaped large helical angle, and the other side of the measuring ball is attached to a micrometer, so that the measuring ball can be used for accurately measuring the ball span of the helical gear with the drum-shaped large helical angle. Therefore, the utility model provides a ball distance detection device is striden to general external tooth can solve when measuring the ball distance of striding of taking the big helical angle helical gear of cydariform through above scheme, adopts the measuring stick to measure the stick distance of striding of gear, leads to measuring unsafe technical problem.

Furthermore, a fixing nut is arranged on the V-shaped supporting block, so that the V-shaped supporting block can be fixed.

Furthermore, the groove is of a T-shaped structure, the sliding block is of a square structure or a cuboid structure, and the sliding block can be fixed in the groove to realize adjustment in the width direction; the supporting screw rod is inserted into the third through hole, and the locking screw is installed in the fourth through hole, so that the effects of fixing the base, the sliding block and the supporting screw rod can be achieved.

Furthermore, a push pin is arranged on the V-shaped supporting block, and when the push pin is attached to the tooth groove of the helical gear with the drum-shaped large helical angle, the push pin plays a role in measuring the falling of the ball.

Furthermore, the height of the supporting screw is higher than that of the helical gear with the drum-shaped large helix angle, so that the purpose of measuring the span spherical distance of the helical gear with the drum-shaped large helix angle at any height can be realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is the overall structure diagram of the universal external tooth span ball distance detection device of the present invention.

Fig. 2 is a front view of the universal external tooth span detection device of the present invention.

Fig. 3 is a structural diagram of the slider of the present invention ((a) is a top view of the slider and (b) is a front view of the slider).

Fig. 4 is a structural diagram of the V-shaped support block of the present invention ((a) is a top view of the V-shaped support block and (b) is a front view of the V-shaped support block).

Wherein: 1-a base; 2-a slide block; 3-locking the screw; 4-a support screw; 5-micrometer; 6-adjusting the nut; 7-pushing the needle; 8-V shaped support blocks; 9-fixing the nut; 10-measuring ball; 11-belt drum shape large helix angle helical gear.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships usually placed when the products of the present invention are used, the description is merely for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific direction, be constructed and operated in a specific direction, and therefore, cannot be understood as a limitation to the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings:

in order to solve the measuring rod and measure the big helix angle helical gear 11 of taking the cydariform and stride the stick apart from inaccuracy problem, the utility model provides a ball apart from detection device is striden to general external tooth, and ball apart from detection device's overall structure chart is striden to general external tooth is shown in 1-4.

The base 1 is arranged below the helical gear 11 with the drum-shaped large helical angle, the upper surface of the base is provided with a groove, two sides of the helical gear 11 with the drum-shaped large helical angle are both vertically provided with supporting screws, and the lower bottom surfaces of the two supporting screws 4 are both positioned in the groove; and adjusting nuts 6 are sleeved on the two supporting screw rods 4.

As shown in fig. 4, the V-shaped support block 8 has a structure: one side of the V-shaped supporting block 8 is provided with a V-shaped groove for fixing the micrometer 5, and the other side of the V-shaped supporting block 8 is provided with a first through hole for fixing the supporting screw rod 3.

The two V-shaped supporting blocks 8 are respectively sleeved on the two supporting screws 3, and the two V-shaped supporting blocks 8 are both positioned above the adjusting nut 6; one side of the measuring ball 10 is attached to the micrometer 5, and the other side of the measuring ball 10 is attached to the tooth groove of the helical gear 11 with the drum-shaped large helical angle.

Preferably, the two adjusting locking nuts 6 are arranged at the same height, and the two fixing nuts 9 are arranged at the same height. All the cover is equipped with fixation nut 9 on supporting screw 3, and two fixation nuts 9 are located the top of two V-arrangement supporting shoes 8 respectively.

A plurality of second through holes are formed below the V-shaped groove, and push pins 7 used for fixing the measuring balls 10 are arranged in the second through holes; wherein, the number of the second through holes can be 7.

The groove is of a T-shaped structure; two sliders 2 are symmetrically arranged in the groove, a third through hole used for fixing a support screw rod 4 is formed in one side of each slider 2, a fourth through hole is formed in the other side of each slider 2, and a locking screw 3 used for fixing the base 1 and the sliders 2 is arranged in the fourth through hole, as shown in fig. 3, each slider 2 is of a cube structure or a cuboid structure.

The height of the helical gear 11 with the drum-shaped large helical angle is lower than that of the supporting screw rod 4, so that the spherical distance of any height of the helical gear 11 with the drum-shaped large helical angle can be measured.

The technical problem is solved by adopting the following scheme:

1) and the measuring ball 10 is used for measuring the span ball distance of the helical gear 11 with the drum-shaped large helical angle, so that the problem of inaccurate detection by using a measuring rod is solved.

2) The T-shaped groove locking method and the double-nut adjusting and fixing structure are provided, stepless adjustment in the width direction and the height direction is achieved, and the problem of universality of the detection device is solved.

3) And the problem of positioning the measuring ball 10 in the middle of the tooth socket is solved by using a push pin type tooth socket self-adaptive structure.

4) The V-shaped supporting block 8 can eliminate the artificial measurement error caused by the inclination of the micrometer 5 held by an operator.

Width direction movement locking: the groove formed in the bottom plate 1 is of a T-shaped structure and is matched with the sliding block 2 of a cube structure or a cuboid structure, and the sliding block 2 is provided with a locking screw 3 which can enable the sliding block 2 to be fixed at any position in the groove of the T-shaped structure.

Height direction adjustment and fixation: the height of the V-shaped supporting block 8 is adjusted and fixed by using a double-nut structure, the adjusting nut 6 below plays a role in adjusting the height, and the fixing nut 9 above plays a role in fixing.

The self-adaptive structure of the push pin tooth socket: and a row of second through holes are formed in the lower end of the V-shaped supporting block 8, the push pin 7 is inserted into the second through holes, and when the V-shaped supporting block 8 is close to a workpiece, the push pin 7 is pressed by hand to enable the push pin 7 to be attached to the tooth groove of the helical gear 11 with the drum-shaped large helical angle. When the equivalent ball 10 is placed in the tooth groove of the helical gear 11 with the drum-shaped large helical angle, the push pin 7 plays a role of preventing the equivalent ball 10 from falling.

V-shaped support block 8: the V-shaped support block 8 has two functions: firstly, support micrometer 5, prevent because the measuring error that micrometer 5 slope caused. And secondly, the push pin 7 is fixed, so that the push pin 7 can freely slide.

The measuring ball 10 measures: the measuring rod is very inconvenient to measure the helical gear 11 with the drum-shaped large helical angle, the measuring ball 10 is used for measuring the span distance accurately, and the measuring rod is matched with a corresponding auxiliary device for measuring conveniently and quickly.

The utility model provides a pair of ball distance detection device is striden to general external tooth, its detailed operating procedure as follows:

step 1, placing a workpiece: the workpiece is placed in the middle of the bottom plate 1.

Step 2, adjusting the transverse position of the detection device: the slide block 2 is moved to a position close to the workpiece along the slide way of the bottom plate 1. And rotating the locking screw 3 to fix the sliding block 2 and the bottom plate 1.

Step 3, adjusting the longitudinal position of the detection device: and (3) mounting the supporting screw rod 4 on the sliding block 2, and adjusting the adjusting nuts 6 on two sides to enable the position of the V-shaped supporting block 8 to be positioned in the middle of the tooth width of the workpiece. The V-shaped support block 8 is fixed using a fixing nut 9.

Step 4, placing measuring balls 10: and (3) penetrating all the push needles 7 into second through holes passing through the lower end of the V-shaped supporting block 8, and slowly pushing the push needles 7 to ensure that the push needles 7 are attached to the tooth grooves of the helical gear 11 with the drum-shaped large helical angle. The measuring ball 10 is placed in the tooth grooves of two sides of the helical gear 11 with the drum-shaped large helical angle.

Step 5, measuring the cross-spherical distance: two ends of the micrometer 5 are erected on the V-shaped supporting block 8 and tightly attached to one end of the measuring ball 10. The ratchet wheel of the micrometer is rotated to make the other end tightly attached to the measuring ball 10. At the moment, the reading of the micrometer 5 is the ball span of the workpiece.

The utility model provides a pair of ball distance detection device is striden to general external tooth, the commonality is strong, convenient to use, measurement accuracy. It is compatible with various parts with different modulus and tooth width. The utility model provides a pair of ball distance detection device is striden to general external tooth has following advantage: 1) compared with the measurement of a measuring bar, the measuring ball 10 is more accurate in measuring the span ball distance of the helical gear 11 with the drum-shaped large helical angle. 2) The push pin type tooth groove self-adaptive structure is suitable for the tooth groove width of most of the existing shaft tooth parts. 3) And the double-nut locking and fixing structure can prevent the V-shaped supporting block 8 from moving in the measuring process and can also adjust the heights of the V-shaped blocks on two sides. 4) The T-shaped groove sliding locking structure is convenient for adjusting the width to adapt to workpieces with different outer diameters. 5) The V-shaped supporting block 8 can stably measure the span ball distance, and the influence of artificial inclination factors on the measurement result is eliminated.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. A universal external tooth ball span detection device is characterized by comprising a micrometer (5), a V-shaped supporting block (8) and a measuring ball (10); two V-shaped supporting blocks (8) and two measuring balls (10) are arranged;

a base (1) is arranged below the helical gear (11) with the drum-shaped large helical angle, the upper surface of the base (1) is provided with a groove, supporting screws (4) are vertically arranged on two sides of the helical gear (11) with the drum-shaped large helical angle, and the lower bottom surfaces of the two supporting screws (4) are positioned in the groove; adjusting nuts (6) are sleeved on the supporting screw rods (4);

one side of the V-shaped supporting block (8) is provided with a V-shaped groove for fixing the micrometer (5), and the other side of the V-shaped supporting block (8) is provided with a first through hole for fixing the supporting screw (4); the two V-shaped supporting blocks (8) are respectively sleeved on the two supporting screws (4), and the two V-shaped supporting blocks (8) are both positioned above the adjusting nut (6); one side of the measuring ball (10) is attached to the micrometer (5), and the other side of the measuring ball (10) is attached to the tooth groove of the helical gear (11) with the drum-shaped large helical angle.

2. The universal external tooth ball-span distance detection device according to claim 1, characterized in that two said adjusting nuts (6) are arranged at equal height.

3. The universal external tooth ball span distance detection device according to claim 2, wherein a plurality of second through holes are formed below the V-shaped groove, and push pins (7) for fixing the measuring balls (10) are installed in the second through holes.

4. The universal external tooth span distance detection device according to claim 3, wherein there are 7 second through holes.

5. The universal external tooth span distance detection device according to claim 2, wherein a fixing nut (9) is sleeved on each support screw (4), and the two fixing nuts (9) are respectively located above the two V-shaped support blocks (8).

6. The universal external tooth ball distance detection device according to claim 5, wherein the two fixing nuts (9) are arranged at the same height.

7. The universal external tooth ball-spanning distance detecting device according to claim 1, wherein the groove is of a T-shaped structure.

8. The universal external tooth ball-crossing distance detection device according to claim 7, wherein two sliding blocks (2) are symmetrically installed in the groove, a third through hole for fixing the support screw (4) is formed in one side of each sliding block (2), a fourth through hole is formed in the other side of each sliding block (2), and a locking screw (3) for fixing the base (1) and the sliding block (2) is installed in each fourth through hole.

9. The universal external tooth ball-crossing distance detection device according to claim 8, wherein the slider (2) is of a square structure or a rectangular parallelepiped structure.

10. The universal external tooth span length detection device according to claim 1, wherein the height of the crowned helical gear (11) with large helix angle is smaller than the height of the support screw (4).