CN110095044B - High-precision clearance measuring meter - Google Patents
High-precision clearance measuring meter Download PDFInfo
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- CN110095044B CN110095044B CN201910411462.5A CN201910411462A CN110095044B CN 110095044 B CN110095044 B CN 110095044B CN 201910411462 A CN201910411462 A CN 201910411462A CN 110095044 B CN110095044 B CN 110095044B
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- cavity
- rotating shaft
- fixedly arranged
- bevel gear
- spout
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- General Physics & Mathematics (AREA)
- Transmission Devices (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a high-precision gap measuring meter which comprises a main body, wherein a first cavity is formed in the top wall of the main body, a second cavity is formed in the bottom wall of the first cavity, a third cavity is formed in the bottom wall of the second cavity, an upward extending main shaft is rotatably arranged between the third cavity and the first cavity, a rotating handle is fixedly arranged at the top end of the main shaft, and sector gears are rotatably arranged in the first cavity in an up-and-down central symmetry mode; when the device is used for measuring, only the rotating handle needs to be screwed, and meanwhile, the center position of the gap does not need to be completely aligned, so that the device is convenient and quick to operate and simple and clear to operate; in addition, a device locking mechanism and a gap protection mechanism are arranged in the device, so that the device is safe and reliable, the measurement is accurate, and the service life is long.
Description
Technical Field
The invention relates to the field of high-precision instruments, in particular to a high-precision clearance measuring meter.
Background
For measuring the gap distance, a clearance gauge is generally used for measuring, the clearance gauge is a gauge consisting of a group of thin steel sheets with different thickness differences, due to the characteristics of the thin steel sheets, dirt and dust on the clearance gauge need to be removed before the gap is measured, one or more sheets of the clearance gauge are overlapped and manually inserted into the clearance when the clearance gauge is used, and the operation is very complicated; in addition, the feeler is pulled back and forth after being plugged in, a numerical value can be read after the feeler is slightly dragged, the measured gap value is only close to the numerical value marked on the feeler, the measurement is very inaccurate, the feeler is worn by pulling back and forth at the same time, the data error is increased due to long service time, and the service life is short; therefore, there is a need for a device to solve the above problems.
Disclosure of Invention
The present invention is directed to a high-precision gap measuring gauge, which can solve the above-mentioned problems of the prior art.
The invention is realized by the following technical scheme: the invention relates to a high-precision clearance measuring meter, which comprises a main body, wherein a first cavity is arranged on the top wall of the main body, a second cavity is arranged on the bottom wall of the first cavity, a third cavity is arranged on the bottom wall of the second cavity, an upwardly extending main shaft is rotatably arranged between the third cavity and the first cavity, a rotating handle is fixedly arranged at the top end of the main shaft, sector gears are rotatably arranged at the upper center and the lower center of the main shaft in the first cavity in a vertical symmetrical mode, an arc-shaped groove with an upward opening is communicated with the top wall of the first cavity, pointers fixed on the top surface of the sector gears are symmetrically arranged on the left side and the right side of the arc-shaped groove, a dial is fixedly arranged on the top surface of the main body, the dial is matched with the main body to indicate clearance values, L-shaped sliding grooves with an outward opening are symmetrically arranged on the left end wall and the right end wall, a first rotating shaft extending leftwards and rightwards is rotatably arranged between the fourth cavity and the L-shaped chute, a first round gear meshed with the rack is fixedly arranged on the first rotating shaft in the L-shaped chute, a first bevel gear is fixedly arranged on the first rotating shaft in the fourth cavity, a second rotating shaft extending upwards and downwards is rotatably arranged between the fourth cavity and the first cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the second rotating shaft in the fourth cavity, a second round gear meshed with the sector gear is fixedly arranged on the second rotating shaft in the first cavity, a device locking mechanism is arranged in the second cavity and can lock the main shaft when the device measurement reaches the limit, a third bevel gear is fixedly arranged on the main shaft in the third cavity, the third cavity left and right ends wall symmetry is equipped with the transmission chamber, be equipped with clearance protection mechanism in the transmission chamber, clearance protection mechanism can prevent that the device from will being surveyed the clearance and enlarge and lead to measuring error or device to damage, the transmission chamber with rotate between the main part outside and be equipped with the third pivot of extending about, the main part outside fixed being equipped with the screw rod in the third pivot, slide through the internal thread on the screw rod and be equipped with first slider, first slider with be connected with the steel wire between the rack, the spacing groove that runs through about the third cavity diapire is equipped with, spacing inslot bilateral symmetry slide be equipped with first slider fixed connection's slide bar.
According to a preferable technical scheme, the device locking mechanism comprises a second cavity, a third circular gear is fixedly arranged on the main shaft in the second cavity, a first sliding groove is formed in the second cavity and communicated with the L-shaped sliding groove, an inclined block extending into the L-shaped sliding groove is arranged in the first sliding groove in a sliding mode, locking teeth capable of being meshed with the third circular gear are fixedly arranged on the end face of the inner side of the inclined block, a second sliding groove is formed in the bottom wall of the first sliding groove in a communicating mode, a second sliding block fixed to the bottom face of the inclined block is arranged in the second sliding groove in a sliding mode, and a first spring is connected between the second sliding block and the end wall of the inner side of the second sliding groove.
As a preferable technical solution, the gap protection mechanism includes the transmission cavity, a fourth rotating shaft is rotatably disposed between the transmission cavity and the third cavity, a fourth bevel gear engaged with the third bevel gear is fixedly disposed on the fourth rotating shaft in the third cavity, a disc is fixedly disposed on the fourth rotating shaft in the transmission cavity, a spline housing is slidably disposed between the fourth rotating shaft and the third rotating shaft, the spline housing can transmit kinetic energy in the fourth rotating shaft to the third rotating shaft, a magnet disc is fixedly disposed on the spline housing, a second spring is connected between the magnet disc and the disc, an electromagnet capable of repelling the magnet disc is fixedly disposed in an end wall on the outer side of the transmission cavity, and a switch electrically connected with the electromagnet is fixedly disposed on an end face on the outer side of the first slider.
The invention has the beneficial effects that: placing the first sliding block in a gap, then screwing the rotating handle, wherein the rotating handle drives the main shaft to rotate, the main shaft drives the third bevel gear to rotate, the third bevel gear drives the fourth bevel gear to rotate, at the moment, the fourth rotating shaft drives the third rotating shaft to rotate through the spline housing, the third rotating shaft drives the screw to rotate, and the screw drives the first sliding block to slide outwards through the internal thread;
when the first sliding block slides outwards, the first sliding block drives the rack to slide downwards through the steel wire, the rack drives the first circular gear and the first bevel gear to rotate, the first bevel gear drives the second bevel gear and the second circular gear to rotate, the second circular gear drives the sector gear to deflect, the sector gear drives the pointer to slide in the arc-shaped groove at the moment, and the numerical value indicated on the dial begins to change;
until the switch extrudes the end wall of the gap, the switch is extruded to enable the electromagnet to repel the magnet disc, the magnet disc drives the spline sleeve to slide inwards, at the moment, the spline sleeve is not in transmission connection with the third rotating shaft, the fourth rotating shaft cannot drive the third rotating shaft to rotate, namely, the first sliding block stops sliding, the numerical value indicated by the pointer is not changed any more, at the moment, the numerical value at the interval between the two pointers is the size of the gap to be measured, the device is simple to operate, the device automatically stops expanding after extruding the end wall of the gap, the device is prevented from extruding the gap or being clamped in the gap, the gap is prevented from being forcibly expanded to damage a measured object, meanwhile, the situation that the measurement error is increased is avoided, and the measurement is accurate;
meanwhile, when the measuring range of the device is exceeded in the measuring process, the rack slides downwards to extrude the inclined block, the inclined block slides inwards to enable the locking teeth to be meshed with the third circular gear, the main shaft cannot rotate, at the moment, the pointer cannot deflect too much and is in contact with the end wall of the arc-shaped groove, namely, the pointer cannot be extruded and deformed, and the device is safe and reliable and long in service life.
The device provided by the invention continuously rotates the grip until the pointers do not continuously deflect, the reading of the interval between the two pointers is the size of the gap, the operation is simple and clear, and the two groups of independent pointers are arranged, so that the device is not required to be completely aligned with the center position of the gap during measurement, and is convenient and quick to operate; meanwhile, a device locking mechanism and a gap protection mechanism are arranged in the device, so that the situations that the device breaks a gap by extrusion, the device is clamped in the gap or a pointer is extruded and deformed when the device exceeds a range and the like are prevented, and the device is safe and reliable, accurate in measurement and long in service life.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic diagram of the overall structure of a high-precision clearance measuring gauge according to the present invention;
FIG. 2 is a schematic view of the structure A-A of FIG. 1;
FIG. 3 is an enlarged view of B in FIG. 1;
FIG. 4 is an enlarged view of C in FIG. 1;
fig. 5 is an enlarged schematic view of D in fig. 1.
Detailed Description
As shown in fig. 1-5, the high-precision clearance measuring meter according to the present invention includes a main body 12, a first cavity 15 is disposed on a top wall of the main body 12, a second cavity 45 is disposed on a bottom wall of the first cavity 15, a third cavity 24 is disposed on a bottom wall of the second cavity 45, an upwardly extending main shaft 11 is rotatably disposed between the third cavity 24 and the first cavity 15, a rotating handle 10 is fixedly disposed at a top end of the main shaft 11, sector gears 13 are rotatably disposed at upper and lower centers of the main shaft 11 in the first cavity 15, an arc-shaped groove 27 having an upward opening is communicated with a top wall of the first cavity 15, pointers 29 fixed to top surfaces of the sector gears 13 are symmetrically disposed on the arc-shaped groove 27, a dial 28 is fixedly disposed on a top surface of the main body 12, the dial 28 is matched with the main body 12 to indicate a clearance value, L-shaped sliding grooves 30 having an outward opening are symmetrically disposed on left and right end walls, a rack 31 is slidably arranged in the L-shaped sliding groove 30, a fourth cavity 35 is symmetrically arranged on the bottom wall of the first cavity 15 from left to right, a first rotating shaft 33 extending from left to right is rotatably arranged between the fourth cavity 35 and the L-shaped sliding groove 30, a first circular gear 32 meshed with the rack 31 is fixedly arranged on the first rotating shaft 33 in the L-shaped sliding groove 30, a first bevel gear 34 is fixedly arranged on the first rotating shaft 33 in the fourth cavity 35, a second rotating shaft 37 extending from top to bottom is rotatably arranged between the fourth cavity 35 and the first cavity 15, a second bevel gear 36 meshed with the first bevel gear 34 is fixedly arranged on the second rotating shaft 37 in the fourth cavity 35, a second circular gear 26 meshed with the sector gear 13 is fixedly arranged on the second rotating shaft 37 in the first cavity 15, and a device locking mechanism 91 is arranged in the second cavity 45, the device locking mechanism 91 can lock the main shaft 11 when the device measurement reaches a limit, a third bevel gear 25 is fixedly arranged on the main shaft 11 in the third cavity 24, transmission cavities 46 are symmetrically arranged on the left and right end walls of the third cavity 24, a gap protection mechanism 90 is arranged in the transmission cavity 46, the gap protection mechanism 90 can prevent the measured gap from being enlarged by a device to cause measurement error or device damage, a third rotating shaft 52 extending left and right is rotatably arranged between the transmission cavity 46 and the outer side of the main body 12, a screw 20 is fixedly arranged on the third rotating shaft 52 outside the main body 12, a first sliding block 22 is arranged on the screw 20 in a sliding manner through an internal thread 21, a steel wire 16 is connected between the first sliding block 22 and the rack 31, a limiting groove 17 which penetrates through the bottom wall of the third cavity 24 from left to right is arranged, slide bars 18 fixedly connected with the first slide block 22 are symmetrically arranged in the limit groove 17 in a left-right sliding mode.
Advantageously, the device locking mechanism 91 includes the second cavity 45, a third circular gear 43 is fixedly arranged on the main shaft 11 in the second cavity 45, a first sliding chute 38 is arranged between the second cavity 45 and the L-shaped sliding chute 30 in a communicating manner, an oblique block 39 extending into the L-shaped sliding chute 30 is arranged in the first sliding chute 38 in a sliding manner, a locking tooth 44 capable of meshing with the third circular gear 43 is fixedly arranged on the inner side end surface of the oblique block 39, a second sliding chute 42 is arranged on the bottom wall of the first sliding chute 38 in a communicating manner, a second sliding block 40 fixed on the bottom surface of the oblique block 39 is arranged in the second sliding chute 42 in a sliding manner, and a first spring 41 is connected between the second sliding block 40 and the inner side end wall of the second sliding chute 42.
Advantageously, the gap protection mechanism 90 comprises the transmission cavity 46, a fourth rotating shaft 48 is rotatably arranged between the transmission cavity 46 and the third cavity 24, a fourth bevel gear 23 engaged with the third bevel gear 25 is fixedly arranged on the fourth rotating shaft 48 in the third cavity 24, a disc 47 is fixedly arranged on the fourth rotating shaft 48 on the transmission cavity 46, a spline housing 53 is arranged between the fourth rotating shaft 48 and the third rotating shaft 52 in a sliding manner, the spline housing 53 can transmit the kinetic energy in the fourth rotating shaft 48 to the third rotating shaft 52, a magnet disc 54 is fixedly arranged on the spline housing 53, a second spring 49 is connected between the magnet disc 54 and the disc 47, an electromagnet 51 which can repel the magnet disc 54 is fixedly arranged in the end wall of the outer side of the transmission cavity 46, a switch 19 electrically connected with the electromagnet 51 is fixedly arranged on the end face of the outer side of the first sliding block 22.
The beneficial effects of the invention are as follows: placing the first sliding block 22 in the gap, then screwing the rotating handle 10, the rotating handle 10 driving the main shaft 11 to rotate, the main shaft 11 driving the third bevel gear 25 to rotate, the third bevel gear 25 driving the fourth bevel gear 23 to rotate, at this time, the fourth rotating shaft 48 driving the third rotating shaft 52 to rotate through the spline housing 53, the third rotating shaft 52 driving the screw 20 to rotate, the screw 20 driving the first sliding block 22 to slide outwards through the internal thread 21;
when the first sliding block 22 slides outwards, the first sliding block 22 drives the rack 31 to slide downwards through the steel wire 16, the rack 31 drives the first circular gear 32 and the first bevel gear 34 to rotate, the first bevel gear 34 drives the second bevel gear 36 and the second circular gear 26 to rotate, the second circular gear 26 drives the sector gear 13 to deflect, at this time, the sector gear 13 drives the pointer 29 to slide in the arc-shaped groove 27, and the value indicated on the dial 28 starts to change;
after the switch 19 extrudes the end wall of the gap, the switch 19 is extruded to enable the electromagnet 51 to reject the magnet disc 54, the magnet disc 54 drives the spline housing 53 to slide inwards, at this time, the spline housing 53 is not in transmission connection with the third rotating shaft 52, the fourth rotating shaft 48 cannot drive the third rotating shaft 52 to rotate, namely, the first sliding block 22 stops sliding, the numerical value indicated by the pointer 29 is not changed any more, at this time, the numerical value of the interval between the two pointers 29 is the size of the measured gap, the device is simple to operate, and the device automatically stops expanding after extruding the end wall of the gap, so that the device is prevented from extruding the gap or being clamped in the gap, the gap is protected from being forcibly expanded to cause the damage of the measured object, and meanwhile, the situation that the measurement error is increased is avoided, and the measurement is accurate;
meanwhile, when the measuring range of the device is exceeded in the measuring process, the rack 31 slides downwards to extrude the inclined block 39, the inclined block 39 slides inwards to enable the locking teeth 44 to be meshed with the third circular gear 43, the main shaft 11 cannot rotate, and at the moment, the pointer 29 cannot deflect too much to be in contact with the end wall of the arc-shaped groove 27, namely, the pointer 29 cannot be extruded and deformed, so that the device is safe and reliable, and is long in service life.
The device provided by the invention continuously rotates the grip until the pointers do not continuously deflect, the reading of the interval between the two pointers is the size of the gap, the operation is simple and clear, and the two groups of independent pointers are arranged, so that the device is not required to be completely aligned with the center position of the gap during measurement, and is convenient and quick to operate; meanwhile, a device locking mechanism and a gap protection mechanism are arranged in the device, so that the situations that the device breaks a gap by extrusion, the device is clamped in the gap or a pointer is extruded and deformed when the device exceeds a range and the like are prevented, and the device is safe and reliable, accurate in measurement and long in service life.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (3)
1. A high-precision clearance measuring meter comprises a main body, wherein a first cavity is arranged on the top wall of the main body, a second cavity is arranged on the bottom wall of the first cavity, a third cavity is arranged on the bottom wall of the second cavity, an upwardly extending main shaft is rotatably arranged between the third cavity and the first cavity, a rotating handle is fixedly arranged at the top end of the main shaft, sector gears are symmetrically and rotatably arranged at the upper center and the lower center of the main shaft in the first cavity, an arc-shaped groove with an upward opening is communicated with the top wall of the first cavity, pointers fixed on the top surface of the sector gears are symmetrically arranged on the left side and the right side of the arc-shaped groove, a dial is fixedly arranged on the top surface of the main body, the dial is matched with the main body to indicate clearance values, L-shaped sliding grooves with outward openings are symmetrically arranged on the left end wall and the right end wall of the first cavity, racks are, a first rotating shaft extending leftwards and rightwards is rotatably arranged between the fourth cavity and the L-shaped chute, a first round gear meshed with the rack is fixedly arranged on the first rotating shaft in the L-shaped chute, a first bevel gear is fixedly arranged on the first rotating shaft in the fourth cavity, a second rotating shaft extending upwards and downwards is rotatably arranged between the fourth cavity and the first cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the second rotating shaft in the fourth cavity, a second round gear meshed with the sector gear is fixedly arranged on the second rotating shaft in the first cavity, a device locking mechanism is arranged in the second cavity and can lock the main shaft when the device measurement reaches the limit, a third bevel gear is fixedly arranged on the main shaft in the third cavity, the third cavity left and right ends wall symmetry is equipped with the transmission chamber, be equipped with clearance protection mechanism in the transmission chamber, clearance protection mechanism can prevent that the device from will being surveyed the clearance and enlarge and lead to measuring error or device to damage, the transmission chamber with rotate between the main part outside and be equipped with the third pivot of extending about, the main part outside fixed being equipped with the screw rod in the third pivot, slide through the internal thread on the screw rod and be equipped with first slider, first slider with be connected with the steel wire between the rack, the spacing groove that runs through about the third cavity diapire is equipped with, spacing inslot bilateral symmetry slide be equipped with first slider fixed connection's slide bar.
2. A high accuracy clearance gauge according to claim 1, wherein: device locking mechanical system includes the second cavity, in the second cavity the fixed third circular gear that is equipped with on the main shaft, the second cavity with the intercommunication is equipped with first spout between the L shape spout, it stretches into to slide in the first spout oblique block in the L shape spout, the fixed locking tooth that can with third circular gear engagement that is equipped with of oblique block medial surface, first spout diapire intercommunication is equipped with the second spout, it is fixed in to slide in the second spout second slider on the oblique block bottom surface, the second slider with be connected with first spring between the inboard end wall of second spout.
3. A high accuracy clearance gauge according to claim 1, wherein: the gap protection mechanism comprises a transmission cavity, a fourth rotating shaft is arranged between the transmission cavity and the third cavity in a rotating mode, a fourth bevel gear meshed with the third bevel gear is fixedly arranged on the fourth rotating shaft in the third cavity, a disc is fixedly arranged on the fourth rotating shaft in the transmission cavity, a spline sleeve is arranged between the fourth rotating shaft and the third rotating shaft in a sliding mode and can transmit kinetic energy in the fourth rotating shaft to the third rotating shaft, a magnet disc is fixedly arranged on the spline sleeve, a second spring is connected between the magnet disc and the disc, an electromagnet capable of repelling the magnet disc is fixedly arranged in the end wall of the outer side of the transmission cavity, and a switch electrically connected with the electromagnet is fixedly arranged on the end face of the outer side of the first sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411462.5A CN110095044B (en) | 2019-05-17 | 2019-05-17 | High-precision clearance measuring meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411462.5A CN110095044B (en) | 2019-05-17 | 2019-05-17 | High-precision clearance measuring meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110095044A CN110095044A (en) | 2019-08-06 |
| CN110095044B true CN110095044B (en) | 2021-02-19 |
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ID=67448393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910411462.5A Expired - Fee Related CN110095044B (en) | 2019-05-17 | 2019-05-17 | High-precision clearance measuring meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN110095044B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62297701A (en) * | 1986-06-16 | 1987-12-24 | Hitachi Zosen Corp | Tooth thickness measuring tool for gear |
| CN104359380A (en) * | 2014-11-30 | 2015-02-18 | 芜湖世特瑞转向系统有限公司 | Device and method for measuring value of meshing clearance of gear and rack of steering machine |
| CN106076875A (en) * | 2016-08-22 | 2016-11-09 | 宁波中亿自动化装备有限公司 | Clearance detector and equipment |
| CN207936893U (en) * | 2018-03-22 | 2018-10-02 | 优模技术信息(上海)有限公司 | Clearance measurement table |
-
2019
- 2019-05-17 CN CN201910411462.5A patent/CN110095044B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62297701A (en) * | 1986-06-16 | 1987-12-24 | Hitachi Zosen Corp | Tooth thickness measuring tool for gear |
| CN104359380A (en) * | 2014-11-30 | 2015-02-18 | 芜湖世特瑞转向系统有限公司 | Device and method for measuring value of meshing clearance of gear and rack of steering machine |
| CN106076875A (en) * | 2016-08-22 | 2016-11-09 | 宁波中亿自动化装备有限公司 | Clearance detector and equipment |
| CN207936893U (en) * | 2018-03-22 | 2018-10-02 | 优模技术信息(上海)有限公司 | Clearance measurement table |
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|---|---|
| CN110095044A (en) | 2019-08-06 |
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| CB03 | Change of inventor or designer information |
Inventor after: Cui Ying Inventor after: Chen Xiaochun Inventor before: Chen Xiaochun |
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Effective date of registration: 20210127 Address after: 453000 No.6, unit 3, 277 Wenhua street, Hongqi District, Xinxiang City, Henan Province Applicant after: Cui Ying Address before: 310000 No.5 Xuantan lane, Xiacheng District, Hangzhou City, Zhejiang Province Applicant before: HANGZHOU MENGYOU CLOTHING Co.,Ltd. |
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