CN213239167U

CN213239167U - Automatic unbalance loading calibrating device of electronic balance

Info

Publication number: CN213239167U
Application number: CN202022561019.7U
Authority: CN
Inventors: 罗柏林
Original assignee: Suzhou Jierui Calibration Testing Co ltd
Current assignee: Suzhou Jierui Calibration Testing Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-05-18
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses an automatic unbalance loading calibrating device of an electronic balance, which comprises a balance body, wherein a level device is arranged at the center of the top end of the balance body, a bubble chamber is arranged in the level device, two sides in the balance body are rotatably connected with a transmission rod, two sides of the bottom end of the transmission rod are in threaded connection with an adjusting foot, the top side of the adjusting foot is fixedly connected with a guide rod, the top side of the guide rod is slidably connected with a guide sleeve, the guide sleeve is fixedly connected with the balance body, the top end of the transmission rod is fixedly connected with a worm wheel, the adjusting foot is in linear operation by arranging the adjusting foot and the transmission rod, the bottom threaded rod of the transmission rod is in threaded transmission connection with the adjusting foot, when the transmission rod rotates, the adjusting foot is in linear operation, the transmission rod is driven by the worm wheel and the worm, the transmission is accurate, the self, the unbalance loading of the balance can be accurately and automatically adjusted.

Description

Automatic unbalance loading calibrating device of electronic balance

Technical Field

The utility model relates to an electronic balance field especially relates to an electronic balance automatic unbalance loading calibrating device.

Background

A balance for balancing the weight of a subject to be weighed using an electromagnetic force is called an electronic balance. Its advantages are accurate and reliable weighing, quick and clear display, automatic detection system, simple automatic calibrating device and overload protector.

Current electronic balance is in the use, because the manufacturing accuracy of balance itself and the problem of locating place, carry the thing dish often can't accomplish with the absolute level on ground, will produce the unbalance loading in the measurement process, just need carry the unbalance loading of thing dish to calibrate this moment, current calibration mode is manual usually and adjusts, and is higher to people's requirement, needs the experienced personnel can be better to calibrate the unbalance loading, uses inconveniently, and the limitation is great.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an automatic unbalance loading calibrating device for an electronic balance.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an automatic offset load calibration device of an electronic balance comprises a balance body, a level device is arranged at the center of the top end of the balance body, a bubble chamber is arranged in the level, two sides in the balance body are rotatably connected with transmission rods, the bottom ends of the transmission rods at two sides are in threaded connection with adjusting feet, the periphery of the top end of the adjusting foot is fixedly connected with a guide rod, the periphery of the top end of the guide rod is connected with a guide sleeve in a sliding way, the guide sleeve is fixedly connected with the balance body, the top end of the transmission rod is fixedly connected with a worm wheel, the top end of the worm wheel is fixedly connected with an offset pointer, the inside of the balance body is fixedly connected with a motor driving plate, the rear parts of the two sides of the inside of the balance body are fixedly connected with a servo motor, the top end of a rotating shaft of the servo motor is fixedly connected with a worm, the worm is meshed with a worm wheel, and the motor driving plate is electrically connected with the servo motor.

As a further description of the above technical solution:

the electronic balance comprises a motor driving board, an electronic balance body and a motor driving board, wherein the motor driving board is electrically connected with a main control chip of the electronic balance, and a space is arranged at the fixed connection position of the balance body and the motor driving board.

As a further description of the above technical solution:

the balance body is provided with a space at the position of the worm gear, and the balance body is provided with a space at the position of the servo motor.

As a further description of the above technical solution:

the center of the adjusting foot is provided with a threaded hole, and the bottom end of the transmission rod is arranged in the threaded hole of the adjusting foot.

As a further description of the above technical solution:

the balance comprises a balance body, a balance rod, a balance body, a transmission rod, a balance body, a balance adjusting foot and a balance adjusting foot, wherein the balance adjusting foot is arranged on the balance body, the balance adjusting foot is arranged on the balance adjusting foot, the upper half portion of the transmission rod is a polished rod, the lower half portion of the transmission.

As a further description of the above technical solution:

the material of the level is transparent organic glass, and a bubble is arranged in the bubble chamber.

As a further description of the above technical solution:

one end of the worm, which deviates from the servo motor, penetrates through the balance body and extends, and a manual knob is fixedly connected to the extending part of the worm.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up adjustment foot and transfer line, the bottom threaded rod through the transfer line is connected with the screw drive between the adjustment foot, and when the transfer line rotated, the adjustment foot carried out the straight line and moved, and the transfer line drives through worm gear, and the transmission is accurate, and from locking performance is good, and servo motor's slew velocity and angle can accurate control for the unbalance loading of balance can carry out accurate automatic adjustment.

2. The utility model discloses a set up motor drive board and come to be connected with the main control chip of balance, when carrying out the unbalance loading test in four positions, the unbalance loading data of obtaining through main control chip receipt to this data drives servo motor and rotates as the basis, carries out automatic calibration to the unbalance loading.

3. The utility model discloses a set up skew pointer and spirit level, degree and direction that can audio-visually look over the unbalance loading.

4. The utility model discloses a set up manual knob, under the condition that automatic adjustment became invalid, can adjust the unbalance loading through manual mode.

Drawings

Fig. 1 is a front cross-sectional view of an automatic unbalance loading calibration device for an electronic balance according to the present invention;

fig. 2 is a top half sectional view of an automatic offset calibration device for an electronic balance according to the present invention;

fig. 3 is a schematic diagram of an adjusting pin of the automatic unbalance loading calibration device of the electronic balance according to the present invention.

Illustration of the drawings:

1. a balance body; 2. an adjusting foot; 3. a transmission rod; 4. a guide bar; 5. a worm gear; 6. offsetting the pointer; 7. a worm; 8. a bubble chamber; 9. a level; 10. a guide sleeve; 11. a motor drive plate; 12. a servo motor; 13. a manual knob.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed 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 in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: an automatic unbalance loading calibration device of an electronic balance comprises a balance body 1, a level 9 is arranged at the center of the top end of the balance body 1, a bubble chamber 8 is arranged inside the level 9, auxiliary unbalance loading calibration is carried out through the level 9 and the bubble chamber 8, two sides inside the balance body 1 are rotatably connected with a transmission rod 3, the bottom end of the transmission rod 3 is a threaded rod and is in threaded transmission connection with an adjusting pin 2 through the threaded rod so as to drive the adjusting pin 2 to move up and down, the bottom ends of the transmission rods 3 at two sides are in threaded connection with the adjusting pin 2, a guide rod 4 is fixedly connected with the peripheral side of the top end of the adjusting pin 2, a guide sleeve 10 is slidably connected with the peripheral side of the top end of the guide rod 4, the rotation of the adjusting pin 2 is limited through the guide rod 4 and the guide sleeve 10, the guide sleeve 10 is fixedly connected with the balance body 1, a worm wheel 5, observe the degree of skew with this, balance body 1's inside fixedly connected with motor drive plate 11 for drive servo motor 12 rotates, balance body 1's inside both sides rear fixedly connected with servo motor 12, the motor that can accurate control output, servo motor 12's axis of rotation top fixedly connected with worm 7, worm 7 meshes with worm wheel 5 mutually, drives worm wheel 5's rotation through worm 7's rotation, motor drive plate 11 and servo motor 12 electric connection.

The motor driving board 11 is electrically connected with a main control chip of the electronic balance, and a space is arranged at the fixed connection position of the balance body 1 and the motor driving board 11. A space is reserved between the balance body 1 and the worm wheel 5, and a space is reserved between the balance body 1 and the servo motor 12. The center of the adjusting foot 2 is provided with a threaded hole, and the bottom end of the transmission rod 3 is arranged in the threaded hole of the adjusting foot 2. The upper half part of the transmission rod 3 is a polished rod, the lower half part of the transmission rod 3 is a threaded rod, the polished rod part of the transmission rod 3 is rotatably connected with the balance body 1, and the threaded rod part of the transmission rod 3 is in threaded connection with the adjusting foot 2. The material of the level 9 is transparent organic glass, and a bubble is arranged in the bubble chamber 8. One end of the worm 7, which is far away from the servo motor 12, penetrates through the balance body 1 and extends, a manual knob 13 is fixedly connected to the extending part of the worm 7, when the automatic unbalance loading calibration fails, the manual knob 13 is rotated to drive the worm 7 to rotate, the unbalance loading calibration is carried out, and the auxiliary calibration is carried out through the level 9 and the bubble chamber 8.

The working principle is as follows: the unbalance loading data of the balance is detected, the data detection result is sent to a main control chip of the balance to be processed, the main control chip sends an instruction to a motor drive plate 11, the motor drive plate 11 drives a servo motor 12 to rotate, the rotation of the servo motor 12 drives a worm 7 to rotate, the rotation of the worm 7 drives a worm wheel 5 to rotate, the worm wheel 5 drives a transmission rod 3 to rotate, a bottom threaded column of the transmission rod 3 drives an adjusting foot 2 to move up and down linearly, so that the unbalance loading of the balance is adjusted, when the automatic unbalance loading calibration fails, a manual knob 13 is rotated to drive the worm 7 to rotate, the unbalance loading calibration is carried out, and the auxiliary calibration is carried out through a level 9 and an air chamber 8.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an automatic unbalance loading calibrating device of electronic balance, includes balance body (1), its characterized in that: the balance is characterized in that a level (9) is arranged at the center of the top of the balance body (1), a bubble chamber (8) is arranged inside the level (9), two sides of the inside of the balance body (1) are rotatably connected with a transmission rod (3), two sides of the inside of the balance body (1) are connected with an adjusting foot (2) through threads at the bottom end of the transmission rod (3), guide rods (4) are fixedly connected with the periphery of the top end of the adjusting foot (2), a guide sleeve (10) is slidably connected with the periphery of the top end of each guide rod (4), the guide sleeve (10) is fixedly connected with the balance body (1), a worm wheel (5) is fixedly connected with the top end of the transmission rod (3), an offset pointer (6) is fixedly connected with the top end of the worm wheel (5), a motor drive plate (11) is fixedly connected with the inside of the balance body, the worm gear type servo motor is characterized in that a worm (7) is fixedly connected to the top end of a rotating shaft of the servo motor (12), the worm (7) is meshed with the worm gear (5), and the motor driving plate (11) is electrically connected with the servo motor (12).

2. The automatic offset calibration device of the electronic balance according to claim 1, wherein: the electronic balance is characterized in that the motor driving plate (11) is electrically connected with a main control chip of the electronic balance, and a space is arranged at the fixed connection position of the balance body (1) and the motor driving plate (11).

3. The automatic offset calibration device of the electronic balance according to claim 1, wherein: the balance is characterized in that a space is reserved between the balance body (1) and the worm wheel (5), and a space is reserved between the balance body (1) and the servo motor (12).

4. The automatic offset calibration device of the electronic balance according to claim 1, wherein: the center of the adjusting foot (2) is provided with a threaded hole, and the bottom end of the transmission rod (3) is arranged in the threaded hole of the adjusting foot (2).

5. The automatic offset calibration device of the electronic balance according to claim 1, wherein: the balance is characterized in that the upper half part of the transmission rod (3) is a polished rod, the lower half part of the transmission rod is a threaded rod, the polished rod part of the transmission rod (3) is rotatably connected with the balance body (1), and the threaded rod part of the transmission rod (3) is in threaded connection with the adjusting foot (2).

6. The automatic offset calibration device of the electronic balance according to claim 1, wherein: the material of the level device (9) is transparent organic glass, and a bubble is arranged in the bubble chamber (8).

7. The automatic offset calibration device of the electronic balance according to claim 1, wherein: one end of the worm (7) departing from the servo motor (12) penetrates through the balance body (1) and extends, and a manual knob (13) is fixedly connected to the extending part of the worm (7).