CN114199106A - Mechanical meter counter testing device - Google Patents
Mechanical meter counter testing device Download PDFInfo
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- CN114199106A CN114199106A CN202111523363.XA CN202111523363A CN114199106A CN 114199106 A CN114199106 A CN 114199106A CN 202111523363 A CN202111523363 A CN 202111523363A CN 114199106 A CN114199106 A CN 114199106A
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- 238000012360 testing method Methods 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 13
- 241000209094 Oryza Species 0.000 claims description 10
- 235000007164 Oryza sativa Nutrition 0.000 claims description 10
- 235000009566 rice Nutrition 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/04—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
- G01B5/043—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring length
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/042—Calibration or calibration artifacts
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Abstract
The invention discloses a mechanical meter counter testing device, comprising: the clamp is used for clamping the meter counter; a rotating wheel; the friction piece is arranged on the rotating wheel and is used for being in contact with a meter counting wheel of the meter counting device; the power part is used for driving the rotating wheel to rotate; and the first turn number detection assembly is used for detecting the turn number of the rotation of the friction piece. The friction piece is detachably connected with the rotating wheel; the friction piece at least comprises a first friction piece and a second friction piece, the roughness of the first friction piece and the roughness of the second friction piece are different, the first friction piece and the second friction piece can be used for carrying out error detection on the first meter counting wheel and the second meter counting wheel of the meter counter, and then the error detection is carried out on the first meter counting wheel and the second meter counting wheel, and the average is obtained, so that the detection error is ensured to be accurate.
Description
Technical Field
The invention relates to the technical field of meter counter maintenance, in particular to a mechanical meter counter inspection device.
Background
A length meter is a widely used length meter, and generally includes a rotating shaft, two meter wheels mounted at two ends of the rotating shaft, and a meter assembly mounted on the rotating shaft.
The measurement accuracy of the meter counter is very important, and the accuracy detection is required to be carried out at intervals in the using process.
In chinese patent application No.: CN201410438754.5 discloses an accurate meter counting calibrator for steel wire ropes, which comprises an upper wire pressing wheel and a lower wire pressing wheel, wherein the steel wire ropes sequentially pass through the upper wire pressing wheel and the lower wire pressing wheel, a meter counting wheel is arranged in the middle of the wire pressing wheels, another wire pressing wheel is arranged above the contact surface of the meter counting wheel and the steel wire ropes, the wire passing wheel presses the steel wire ropes on the meter counting wheel through a pressure spring, and the meter counting wheel is prevented from slipping in the operation of equipment. This technical solution is not suitable for the inspection of the above-mentioned meter counter, so this application is proposed.
Disclosure of Invention
In order to solve the technical problem in at least one aspect of the background art, the invention provides a mechanical meter counter checking device.
The invention provides a mechanical meter counter checking device, which comprises:
the clamp is used for clamping the meter counter;
a rotating wheel;
the friction piece is arranged on the rotating wheel and is used for being in contact with a meter counting wheel of the meter counting device;
the power part is used for driving the rotating wheel to rotate;
and the first turn number detection assembly is used for detecting the turn number of the rotation of the friction piece.
The friction piece is detachably connected with the rotating wheel; the friction member at least comprises a first friction member and a second friction member, and the roughness of the first friction member and the roughness of the second friction member are different.
Preferably, the jig comprises:
a base;
a rotating shaft rotatably connected with the base;
a fastener for fixing the rotating shaft with the base;
and the clamping part is arranged on the rotating shaft.
Preferably, the clamping portion includes:
a connecting plate connected with the rotating shaft;
the two clamping assemblies are arranged at intervals along the length direction of the meter counter; the clamping assembly comprises:
the supporting piece is connected with the connecting plate;
three supporting wheel, the interval arrange in meter rice ware's pivot all around, and with meter rice ware's pivot is supported and is leaned on, and is three the supporting wheel all with support piece connects.
Preferably, the device further comprises three connecting pieces, and the three supporting wheels are respectively connected with the supporting piece through the three connecting pieces; wherein the support wheel is rotatable relative to the connecting piece.
Preferably, at least one of said connectors is adjustable in length, comprising:
the supporting wheel is rotatably arranged on the supporting block;
the mounting sleeve is arranged on the connecting block;
the connecting rod is connected with the mounting sleeve in a sliding manner and is connected with the supporting piece;
and the fixing piece is used for fixing the connecting rod with the mounting sleeve.
Preferably, the support member includes:
the first end of the first half ring is hinged with the first end of the second half ring, and the second end of the first half ring is detachably connected with the second end of the second half ring.
Preferably, the clamping part further comprises two limiting units, and the two limiting units are symmetrically arranged; the spacing unit includes:
the limiting rod is arranged in parallel with the rotating shaft of the meter counter;
the fixing plate is connected with the limiting rod in a sliding manner;
the fixed block is connected with the base;
and the screw is parallel to the limiting rod, is rotatably connected with the fixed block and is in threaded connection with the fixed plate.
Preferably, the apparatus further comprises:
a support;
the rotating shaft is rotatably arranged on the bracket;
a pulley mounted on the rotating shaft;
the belt is used for being arranged on a meter counting wheel and a belt wheel of the meter counting device;
the rotating part is used for driving the rotating shaft to rotate;
and the second turn number detection assembly is used for detecting the turn number of the belt rotation.
A mechanical meter counter inspection method comprises the following steps:
mounting a first friction member on a rotating wheel and contacting the first friction member with a first meter wheel of the meter counter;
fixing the meter counter by using a clamp;
the power part is used for driving the rotating wheel to rotate;
calculating the rotation number S1 of the first friction piece by using a first turn number detection assembly;
the reading on the meter counter is P1;
the error of the meter counter is as follows: θ 1 ═ (P1-P2)/P2, wherein P2 ═ S1 ═ 2 π r1，r1Is the distance between the contact position of the first friction piece and the first meter counting wheel of the meter counting device and the rotating center of the rotating wheel.
Preferably, the method further comprises:
separating a first meter wheel of the meter counter from a first friction member;
removing the first friction piece and installing a second friction piece, wherein the roughness of the first friction piece and the roughness of the second friction piece are different, and the second friction piece is contacted with a first meter wheel of the meter counter;
fixing the meter counter by using a clamp;
the power part is used for driving the rotating wheel to rotate;
calculating the rotation number S2 of the second friction piece by using the first turn number detection assembly;
the reading on the meter counter is P3;
the error of the meter counter is as follows: θ 2 ═ (P3-P4)/P4, wherein P4 ═ S2 ═ 2 π r2，r2The distance between the contact position of the second friction piece and a first meter counting wheel of the meter counting device and the rotating center of the rotating wheel is set;
theta 1 and theta 2 are averaged.
Preferably, the method further comprises: separating a first meter wheel of the meter counter from a second friction member;
contacting a second meter wheel of said meter counter with a second friction member;
fixing the meter counter by using a clamp;
the power part is used for driving the rotating wheel to rotate;
calculating the rotation number S3 of the second friction piece by using the first turn number detection assembly;
the reading on the meter counter is P5;
the error of the meter counter is as follows: θ 3 ═ P5-P6)/P6, wherein P6 ═ S3 ═ 2 π r3，r3The distance between the contact position of the second friction piece and a second meter counting wheel of the meter counting device and the rotating center of the rotating wheel is set;
θ 1, θ 2, and θ 3 are averaged.
Preferably, the method further comprises:
separating a second metering wheel of the meter counter from a second friction member;
removing the second friction piece, installing a first friction piece, and enabling the first friction piece to be in contact with a second meter wheel of the meter counter;
fixing the meter counter by using a clamp;
the power part is used for driving the rotating wheel to rotate;
calculating the rotation number S4 of the first friction piece by using a first turn number detection assembly;
the reading on the meter counter is P7;
the error of the meter counter is as follows: θ 4 ═ (P7-P8)/P8, wherein P8 ═ S4 ═ 2 π r4，r4The distance between the contact position of the first friction piece and a second meter counting wheel of the meter counting device and the rotating center of the rotating wheel is set;
the average value of θ 1, θ 2, θ 3, and θ 4 is obtained.
The beneficial effects brought by one aspect of the invention are as follows:
the invention can utilize the first friction piece and the second friction piece to carry out error detection on the first meter counting wheel and the second meter counting wheel of the meter counting device, and then average, so that the detection error is more accurate.
Drawings
FIG. 1 is an axial view of embodiment 1 of the present disclosure;
FIG. 2 is an axial view of embodiment 1 of the present disclosure;
FIG. 3 is a front view of embodiment 1 of the present disclosure;
FIG. 4 is an axial view of embodiment 1 of the present disclosure;
FIG. 5 is a left side view of embodiment 1 of the present disclosure;
FIG. 6 is a top view of embodiment 1 of the present disclosure;
FIG. 7 is an axial view of a portion of the components of the present disclosure;
FIG. 8 is an axial view of a portion of the components of the present disclosure;
FIG. 9 is a right side view of a portion of the components of the present disclosure;
FIG. 10 is an axial view of embodiment 2 of the present disclosure;
FIG. 11 is an axial view of embodiment 2 of the present disclosure;
FIG. 12 is an axial view of embodiment 2 of the present disclosure;
FIG. 13 is a front view of embodiment 2 of the present disclosure;
FIG. 14 is a right side view of embodiment 2 of the present disclosure;
FIG. 15 is a flowchart of example 3 of the present disclosure.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present application may be combined with each other; the technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Embodiment 1, referring to fig. 1 to 9, the present invention provides a mechanical meter counter checking device, including:
the clamp 1 is used for clamping the meter counter A; a wheel 2, the wheel 2 can be arranged horizontally.
The friction piece 3 is arranged on the rotating wheel 2, and the friction piece 3 is used for being in contact with a meter counting wheel of the meter counting device A; the friction member 3 may be a rubber pad or the like.
And the power part 4 is used for driving the rotating wheel 2 to rotate. The power section 4 may be a motor.
And the first turn number detection group 5 is used for detecting the turn number of the rotation of the friction piece 3. The first turn number detecting unit 5 is a conventional device. Can be for proximity switch subassembly, response piece, will respond to the piece setting on runner 2, let the proximity switch subassembly arrange in the below of responding to the piece, record the 3 pivoted number of turns of friction piece when responding to the piece through the proximity switch subassembly.
As a further improvement of the above embodiment, in an embodiment, the friction member 3 is detachably connected to the rotating wheel 2, and can be in mortise-tenon joint connection, a positioning column can be installed on the bottom wall of the friction member 3, and a hole matched with the positioning column is formed in the rotating wheel 2; the friction member 3 at least comprises a first friction member 3 and a second friction member 3, and the roughness of the first friction member 3 and the roughness of the second friction member 3 are different. Through setting up the first friction member 3, the second friction member 3 that the roughness is different, through letting meter rice ware A's meter rice wheel and first friction member 3, the contact of second friction member 3, the different scenes in the simulation meter rice ware A practical application, so, the inspection precision is more accurate.
A first friction member 3 is mounted on the wheel 2 and the first friction member 3 is brought into contact with a first meter wheel a1 of the meter counter a.
Fixing the meter counter A by using a clamp 1; the power part 4 is used for driving the rotating wheel 2 to rotate.
Calculating the rotation number S1 of the first friction piece 3 by using the first turn number detection assembly; the reading on meter counter a is P1.
The error of the meter counter A is as follows: θ 1 ═ (P1-P2)/P2, wherein P2 ═ S1 ═ 2 π r1，r1Is the distance between the contact point of the first friction member 3 and the first meter wheel a1 of the meter counter a and the rotation center of the rotating wheel 2.
In order to improve the accuracy of the test. The first friction member 3 was removed, the second friction member 3 was attached, and the error θ 2 of the meter a was obtained again in the above manner.
The meter counter A comprises two meter counting wheels, namely a first meter counting wheel A1 and a second meter counting wheel A2. The first meter wheel A1 and the second meter wheel A2 have installation and size errors.
To improve accuracy, the second metering wheel A2 of meter A was again checked as described above.
The second meter wheel a2 of the meter a was brought into contact with the first friction member 3, and the error θ 3 of the meter a was determined in the manner described above. The second meter wheel a2 of the meter a was brought into contact with the second friction member 3, and the error θ 4 of the meter a was determined in the manner described above. Then, θ 1, θ 2, θ 3, and θ 4 are averaged, and θ is obtained as (θ 1+ θ 2+ θ 3+ θ 4)/4.
The thus obtained inspection error of the meter counter a is more accurate.
As a further improvement of the above-described embodiment, in one embodiment, the clamp 1 comprises:
a base 101; a rotating shaft 102 rotatably connected to the base 101; a fastener 103 for fixing the rotation shaft 102 to the base 101; a clamping portion, the clamping portion comprising:
and a connecting plate 104 connected to the rotating shaft 102.
The two clamping assemblies are arranged at intervals along the length direction of the meter counter A; the clamping assembly comprises:
a support 105 connected to the connection plate 104; three connecting members 107.
The three supporting wheels 106 are arranged at the periphery of the rotating shaft of the meter counter A at intervals and abut against the rotating shaft of the meter counter A, and the three supporting wheels 106 are respectively connected with the supporting piece 105 through three connecting pieces 107; wherein the support wheel 106 is rotatable relative to the connecting member 107.
The three support wheels 106 are evenly arranged around the rotating shaft of the meter counter A at intervals to support the rotating shaft. The rotating shaft and the supporting wheel 106 are arranged in parallel and in line contact, so that the rotating shaft can rotate conveniently.
The support wheels 106 are connected to the support member 105 through a connection member 107, the support member 105 is connected to the rotation shaft 102 through the connection plate 104, and the rotation shaft 102 is disposed on the base 101. Thus, the meter counter A can be effectively supported.
The fastener 103 may be a bolt.
After the error measurement of the first metering wheel a1 of the meter a. After the fastening piece 103 is removed, the rotating shaft 102 is conveniently rotated, the rotating shaft 102 is rotated by 180 degrees, and the second meter counting wheel A2 of the meter counting device A is contacted with the first friction piece 3 and the second friction piece 3. Then, the pivot shaft 102 is fixed to the base 101 by the fastener 103. The error of the second metering wheel a2 is measured. Then, the error is averaged to obtain a more accurate error.
As a further improvement of the above embodiment, in one embodiment, at least one of the connecting members 107 is adjustable in length, in this embodiment, one connecting member 107 is located above the rotating shaft of the meter counter a and is adjustable in length, and the other two connecting members 107 are located below the center line of the rotating shaft of the meter counter a; the connecting member 107 located above includes:
a connecting block 1071 on which the support wheel 106 is rotatably mounted; a mounting sleeve 1072 provided on the connection block 1071; a connecting rod 1073 slidably connected to the mounting sleeve 1072 and connected to the supporter 105; a fixing member 1074 for fixing the connecting rod 1073 and the mounting sleeve 1072.
Through removing the installation cover 1072, let supporting wheel 106 support with meter rice ware A's pivot and lean on, the restriction pivot is rocked. The mounting sleeve 1072 is then secured to the connecting rod 1073 by fasteners 1074. The fixing member 1074 may be a bolt, and a plurality of screw holes to be engaged with the bolt may be provided on the mounting sleeve 1072. The rotating shaft is suitable for fixing the meters A with different sizes.
Of course, the other two connecting members 107 may be arranged as described above, or may be arranged in other manners known in the art.
As a further improvement of the above embodiment, in one embodiment, the support member 105 comprises:
a first half ring 1051 and a second half ring 1052, wherein a first end of the first half ring 1051 is hinged with a first end of the second half ring 1052, and a second end of the first half ring 1051 is detachably connected with a second end of the second half ring 1052, and can be connected by bolts. The first half-loop 1051 is located at the top; the second half-ring 1052 is connected to the connecting plate 104. The length adjustable connecting members 107 are connected to the first half-ring 1051, and the other two connecting members 107 are connected to the second half-ring 1052.
In use, the first half-ring 1051 is opened and the meter A is placed so that the axis of rotation of the meter A is in contact with the two support wheels 106 below. The first half-loop 1051 is closed, and the second end of the first half-loop 1051 is connected to the second end of the second half-loop 1052. Through removing the installation cover 1072, let the supporting wheel 106 of top lean on with meter rice ware A's pivot, and the restriction pivot is rocked. The mounting sleeve 1072 is then secured to the connecting rod 1073 by fasteners 1074. Therefore, the rotating shaft of the meter counter A is effectively fixed by the three supporting wheels 106, and the meter counter A is prevented from shaking. The support wheel 106 can rotate relative to the connecting piece 107 without influencing the rotation of the rotating shaft. The friction piece 3 can not influence when driving the metering wheel to rotate.
When the first half ring 1051 needs to be removed, the second end of the first half ring 1051 and the second end of the second half ring 1052 are opened. The first half-ring 1051 is rotated in the reverse direction, and the meter counter A can be taken out by opening the first half-ring 1051.
This embodiment sets up, conveniently puts into meter counter A, and the meter counter A is fixed to the convenience, also conveniently takes off meter counter A.
As a further improvement of the above embodiment, in one embodiment, the clamping portion further includes two limiting units, and the two limiting units are symmetrically arranged; the spacing unit includes:
a limit rod 108 arranged in parallel with the rotating shaft of the meter counter A; a fixing plate 109 slidably connected to the limiting rod 108; a fixed block 110 connected to the base 101; and the screw 111 is parallel to the limiting rod 108, is rotatably connected with the fixing block 110, and is in threaded connection with the fixing plate 109.
The fixing plate 109 is fixed to the meter unit of the meter counter a by rotating the screw 111. Set up two fixed plates 109, restriction meter rice ware A rocks along the length direction of pivot, guarantees the inspection accuracy.
a bracket 6; a rotating shaft 7 which is rotatably mounted on the bracket 6; a pulley 8 mounted on the rotating shaft 7; the belt 9 is used for being arranged on a meter counting wheel of the meter counting device A and the belt wheel 8; the rotating part 10 is used for driving the rotating shaft 7 to rotate, and the rotating part 10 can be a motor, so that an output shaft of the motor is connected with the rotating shaft 7 to drive the rotating shaft 7 to rotate; the second turn number detection assembly 11 is used for detecting the turn number of the rotation of the belt 9; reference may be made to the first turn number detecting assembly, which may be an existing device.
The friction piece 3 is in line contact with a meter wheel of the meter counter A. In order to simulate different application scenarios of the meter counter A. The friction member 3 can be removed to allow the friction member 3 to be separated from the metering wheel of the meter counter a.
The meter counter a is fixed by the clamp 1, and the clamp 1 may be the clamp 1 in embodiment 1 or the clamp 1 in the prior art.
A belt 9 is mounted on a first meter counting wheel A1 and a belt wheel 8 of the meter counting device A. The belt 9 is in surface contact with the metering wheel.
The rotating part 10 is used for driving the rotating shaft 7, the belt wheel 8 and the belt 9 to rotate, and the second circle number detection assembly is used for detecting the rotation circle number W of the belt 9. The circumference of the belt 9 is L. Meter a reads Q1.
Error theta of meter counter10＝(Q1-Q2)/Q2；Q2＝W*L。
The belt is taken down, and the meter counter is adjusted to rotate 180 degrees. The belt is arranged on a second meter counting wheel and a belt wheel of the meter counting device. Determining θ according to the above method20。
May be calculated from10、θ20θ 1, θ 2, θ 3, and θ 4. The error detection of the meter counter is accurate.
step S00: a first friction member is mounted on the wheel and is brought into contact with a first meter wheel of the meter counter.
Step S01: and fixing the meter counter by using a clamp.
Step S02: the power part is used for driving the rotating wheel to rotate.
Step S03: and calculating the rotation number S1 of the first friction piece by using the first turn number detection assembly.
Step S04: the meter counter reading is P1.
Step S05: the error of the meter counter is as follows: θ 1 ═ (P1-P2)/P2, wherein P2 ═ S1 ═ 2 π r1，r1Is the distance between the contact position of the first friction piece and the first meter counting wheel of the meter counting device and the rotating center of the rotating wheel.
And driving the first meter wheel to rotate by using the friction piece, simulating the actual application scene of the meter counter, and checking the error of the meter counter according to the method.
Further, the method further comprises:
separating a first meter wheel of the meter counter from a first friction member.
And taking down the first friction piece and installing a second friction piece, wherein the roughness of the first friction piece and the roughness of the second friction piece are different, so that the second friction piece is in contact with a first meter counting wheel of the meter counting device.
Fixing the meter counter by using a clamp; the power part is used for driving the rotating wheel to rotate.
Calculating the rotation number S2 of the second friction piece by using the first turn number detection assembly; the meter counter reading is P3.
The error of the meter counter is as follows: θ 2 ═ (P3-P4)/P4, wherein P4 ═ S2 ═ 2 π r2，r2The distance between the contact position of the second friction piece and a first meter counting wheel of the meter counting device and the rotating center of the rotating wheel is set; theta 1 and theta 2 are averaged.
As a further improvement, the method further comprises: separating a first meter wheel of the meter counter from a second friction member;
contacting a second meter wheel of said meter counter with a second friction member; fixing the meter counter by using a clamp; the power part is used for driving the rotating wheel to rotate.
Calculating the rotation number S3 of the second friction piece by using the first turn number detection assembly; the readings on the meter counter are P5,
The error of the meter counter is as follows: θ 3 ═ P5-P6)/P6, wherein P6 ═ S3 ═ 2 π r3，r3The distance between the contact position of the second friction piece and a second meter counting wheel of the meter counting device and the rotating center of the rotating wheel is set; θ 1, θ 2, and θ 3 are averaged.
As a further improvement, the method further comprises:
separating a second metering wheel of the meter counter from a second friction member; and taking down the second friction piece, installing the first friction piece, and enabling the first friction piece to be in contact with a second meter counting wheel of the meter counting device.
Fixing the meter counter by using a clamp; the power part is used for driving the rotating wheel to rotate.
Calculating the rotation number S4 of the first friction piece by using a first turn number detection assembly; the meter counter reading is P7.
The error of the meter counter is as follows: θ 4 ═ (P7-P8)/P8, wherein P8 ═ S4 ═ 2 π r4，r4Is the first friction member andthe distance between the contact position of a second meter counting wheel of the meter counting device and the rotating center of the rotating wheel; the average value of θ 1, θ 2, θ 3, and θ 4 is obtained.
The first meter wheel and the second meter wheel of the meter counter have installation and size errors. In practical application, the meter counter can be contacted with the parts to be measured with different roughness. Therefore, errors are obtained respectively by providing the first friction piece and the second friction piece with different roughness and respectively contacting with the first meter counting wheel and the second meter counting wheel, and then an average value is obtained. Thus, the data is more accurate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A mechanical meter counter testing device, comprising:
the clamp is used for clamping the meter counter;
a rotating wheel;
the friction piece is arranged on the rotating wheel and is used for being in contact with a meter counting wheel of the meter counting device;
the power part is used for driving the rotating wheel to rotate;
and the first turn number detection assembly is used for detecting the turn number of the rotation of the friction piece.
2. The mechanical meter counter testing device of claim 1, wherein said friction member is removably connected to said wheel; the friction member at least comprises a first friction member and a second friction member, and the roughness of the first friction member and the roughness of the second friction member are different.
3. The mechanical meter counter testing device of claim 1, wherein the clamp comprises:
a base;
a rotating shaft rotatably connected with the base;
a fastener for fixing the rotating shaft with the base;
and the clamping part is arranged on the rotating shaft.
4. The mechanical meter counter check device of claim 3, wherein the grip portion comprises:
a connecting plate connected with the rotating shaft;
the two clamping assemblies are arranged at intervals along the length direction of the meter counter; the clamping assembly comprises:
the supporting piece is connected with the connecting plate;
three supporting wheel, the interval arrange in meter rice ware's pivot all around, and with meter rice ware's pivot is supported and is leaned on, and is three the supporting wheel all with support piece connects.
5. The mechanical meter counter testing device of claim 4, further comprising three connecting members, wherein three of said support wheels are connected to said support member by three connecting members, respectively; wherein the support wheel is rotatable relative to the connecting piece.
6. The mechanical meter counter check device of claim 5, wherein at least one of the connectors is adjustable in length, comprising:
the supporting wheel is rotatably arranged on the supporting block;
the mounting sleeve is arranged on the connecting block;
the connecting rod is connected with the mounting sleeve in a sliding manner and is connected with the supporting piece;
and the fixing piece is used for fixing the connecting rod with the mounting sleeve.
7. The mechanical meter counter check device of claim 4, wherein the support member comprises:
the first end of the first half ring is hinged with the first end of the second half ring, and the second end of the first half ring is detachably connected with the second end of the second half ring; at least one of the connectors is connected to the first half ring; the second half ring is connected with the connecting plate.
8. The mechanical meter counter testing device of claim 3, wherein the clamping portion further comprises two stop units, the two stop units being symmetrically arranged; the spacing unit includes:
the limiting rod is arranged in parallel with the rotating shaft of the meter counter;
the fixing plate is connected with the limiting rod in a sliding manner;
the fixed block is connected with the base;
and the screw is parallel to the limiting rod, is rotatably connected with the fixed block and is in threaded connection with the fixed plate.
9. The mechanical meter counter testing device of claim 1, further comprising:
a support;
the rotating shaft is rotatably arranged on the bracket;
a pulley mounted on the rotating shaft;
the belt is used for being arranged on a meter counting wheel and a belt wheel of the meter counting device;
the rotating part is used for driving the rotating shaft to rotate;
and the second turn number detection assembly is used for detecting the turn number of the belt rotation.
10. A mechanical meter counter inspection method is characterized in that: the method comprises the following steps:
mounting a first friction member on a rotating wheel and contacting the first friction member with a first meter wheel of the meter counter;
fixing the meter counter by using a clamp;
the power part is used for driving the rotating wheel to rotate;
calculating the rotation number S1 of the first friction piece by using a first turn number detection assembly;
the reading on the meter counter is P1;
the error of the meter counter is as follows: θ 1 ═ (P1-P2)/P2, wherein P2 ═ S1 ═ 2 π r1，r1Is the distance between the contact position of the first friction piece and the first meter counting wheel of the meter counting device and the rotating center of the rotating wheel.
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