CN113970397A - Measuring device - Google Patents
Measuring device Download PDFInfo
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- CN113970397A CN113970397A CN202111221345.6A CN202111221345A CN113970397A CN 113970397 A CN113970397 A CN 113970397A CN 202111221345 A CN202111221345 A CN 202111221345A CN 113970397 A CN113970397 A CN 113970397A
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- 238000005259 measurement Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 8
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 210000000078 claw Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present disclosure relates to a measuring device for measuring contact pressure of an electric brush and a commutator, the measuring device comprises a base, a support rod, a measuring mechanism with a measuring scale and a force measuring mechanism with a force measuring pointer; the supporting rod is arranged on the base, the measuring mechanism is arranged at one end of the supporting rod, which is far away from the base, the force measuring mechanism is movably arranged on the measuring scale, and the force measuring mechanism is used for moving along the measuring direction of the measuring scale; when the measuring device is matched with the electric brush assembly, the electric brush assembly is positioned on one side of the base, which is close to the support rod, the central axis of the electric brush assembly is superposed with the zero scale mark of the measuring scale, the measuring direction of the measuring scale is the same as the radial direction of the electric brush assembly, and the end part of the force measuring pointer is contacted with the electric brush contained in the electric brush assembly. The force measuring mechanism disclosed by the invention can accurately control the measuring distance, the shaking of a manual handheld measuring mode can not occur, the manual error is reduced, and the contact pressure between the electric brush and the commutator is accurately measured.
Description
Technical Field
The present disclosure relates to the field of electrical brush contact pressure measurement technology, and particularly to a measuring device.
Background
In the direct current brush torque motor, the mechanical friction between the brush and the commutator is increased due to the fact that the contact pressure of the brush is too large, abrasion of the brush is accelerated, the service life of the motor is shortened, and the starting voltage of the motor is influenced to a certain extent. Based on the structure, the angle of the spring piece can be adjusted to reduce the frictional resistance, and the contact pressure between the electric brush and the commutator is controlled, so that the starting voltage of the motor is reduced, and the reliability of the motor is ensured;
at present, can utilize artifical handheld tensiometer to measure the pressure size that brush and commutator surface distance produced for zero hour spring leaf, but the degree of accuracy of artifical handheld tensiometer measuring mode is not high, produces certain operating error easily to influence the adjustment degree of accuracy of brush contact pressure measuring result and spring leaf angle, lead to brush and commutator cooperation to use the problem.
Disclosure of Invention
In order to solve the above technical problem, the present disclosure provides a measuring device.
In order to achieve the above object, the present disclosure provides a measuring device for measuring a contact pressure of a brush and a commutator, the measuring device including a base, a support rod, a measuring mechanism having a measuring scale, and a force measuring mechanism having a force measuring pointer;
the supporting rod is arranged on the base, the measuring mechanism is arranged at one end of the supporting rod, which is far away from the base, the force measuring mechanism is movably arranged on the measuring scale, and the force measuring mechanism is used for moving along the measuring direction of the measuring scale;
when the measuring device is matched with the electric brush assembly, the electric brush assembly is located at one side, close to the support rod, of the base, the central axis of the electric brush assembly coincides with the zero-point scale mark of the measuring scale, the measuring direction of the measuring scale is the same as the radial direction of the electric brush assembly, and the end part of the force measuring pointer is in contact with an electric brush contained in the electric brush assembly.
Preferably, the measuring mechanism is rotatably arranged at one end of the supporting rod away from the base;
the measuring device further comprises a rotating connecting piece, the rotating connecting piece is rotatably arranged at one end, far away from the base, of the supporting rod, and the measuring mechanism is arranged on the rotating connecting piece.
Preferably, the rotating connecting piece is provided with a socket joint part and an insertion part which are opposite, the socket joint part is rotatably sleeved at one end of the supporting rod far away from the base, and the measuring mechanism is inserted in the insertion part.
Preferably, the sleeve joint part is a concave part arranged on the rotating connecting piece, and one end of the supporting rod far away from the base extends into the concave part;
the supporting rod is provided with a limiting step matched with the end face of the sleeving part, and the limiting step is close to one end, far away from the base, of the supporting rod.
Preferably, the insertion part is a slot formed on the rotary connecting piece.
Preferably, the measuring device further comprises a mounting mechanism for mounting the brush assembly, the mounting mechanism is located on the surface of the base close to the support rod, and the mounting mechanism is provided with at least three claws.
Preferably, the measuring tape has a first stopper portion, and the measuring mechanism further includes: the auxiliary ruler moves along the measuring direction of the measuring ruler, the auxiliary ruler is provided with a second limiting part opposite to the first limiting part, the force measuring mechanism is connected with the second limiting part, and the force measuring pointer is vertically aligned with the limiting end face of the second limiting part.
Preferably, the measuring device further comprises a mounting frame, and the second limiting part and the force measuring mechanism are arranged on the mounting frame.
Preferably, the mounting bracket has a first mounting groove, and the force measuring mechanism is fixedly mounted in the first mounting groove.
Preferably, the mounting bracket is provided with a second mounting groove, and the second limiting part is fixedly mounted in the second mounting groove.
In summary, the manual handheld measurement mode is replaced by the mutual matching of the mechanical structures such as the base, the supporting rod, the measuring mechanism and the force measuring mechanism, the force measuring mechanism stably moves on the measuring scale of the measuring mechanism, the measuring distance can be accurately controlled, the shaking of the manual handheld measurement mode is avoided, the manual operation error is reduced, the contact pressure between the electric brush and the commutator is accurately measured, the basis is provided for the angle adjustment of the spring piece, and the contact pressure of different adjusted electric brushes is ensured to be balanced and within a reasonable range through measurement; the base can be provided with the electric brush assemblies with different outer diameter sizes, so that the contact pressure of the electric brushes in the electric brush assemblies with different outer diameter sizes can be accurately measured; the measuring mechanism can drive the force measuring mechanism to rotate, the contact pressure of the electric brushes at different positions of the circumference of the electric brush assembly is measured, the basis is provided for the angle debugging of the spring piece, and the purpose of further reducing the starting voltage of the motor is achieved on the premise of ensuring the reliability through the contact pressure of the accurate control electric brush.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a base of the present invention;
FIG. 3 is a schematic view of a brush assembly according to the present disclosure;
FIG. 4 is a schematic view of an angle of rotation of the connector of the present invention;
FIG. 5 is a schematic view of another angle of the rotating link according to the present invention;
FIG. 6 is a schematic view of a support bar according to the present invention;
FIG. 7 is a schematic view of the measuring mechanism of the present invention in cooperation with a mounting bracket.
The labels in the figure are:
1 is a base, 1-1 is a first installation base groove, and 1-2 is a second installation base groove;
2 is a support rod, and 2-1 is a limit step;
3 is a measuring mechanism, 3-1 is a measuring scale, 3-2 is a first limiting part, 3-3 is a second limiting part, and 3-4 is an auxiliary scale;
4 is a force measuring mechanism, and 4-1 is a force measuring pointer;
5 is an electric brush component, 5-1 is an electric brush, and 5-2 is a connecting spring piece;
6 is a rotary connecting piece, 6-1 is a socket joint part, and 6-2 is a splicing part;
7 is an installation mechanism, and 7-1 is a claw;
8 is an installation frame, 8-1 is a first installation groove, and 8-2 is a second installation groove.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 3, the embodiment of the present disclosure provides a measuring device for measuring a contact pressure of a brush 5-1 and a commutator, the measuring device includes a base 1, a support rod 2, a measuring mechanism 3 having a measuring scale 3-1, and a force measuring mechanism 4 having a force measuring pointer 4-1;
the bracing piece 2 is established on base 1, and this bracing piece 2 can with base 1 fixed connection, also can dismantle the connection, can dismantle when being connected when bracing piece 2 can with base 1, can be when using, can link together bracing piece 2 with base 1, when not using, unpacks apart bracing piece 2 and base 1. The supporting rod 2 can be mounted on the base 1 in various ways, for example, the base 1 can be provided with a first mounting base groove 1-1, the bottom of the supporting rod 2 is fixed in the first mounting base groove 1-1 and is fixed through metal bonding glue, so that the connection is more stable, the first mounting base groove 1-1 provides a stable and reliable fixing base for the supporting rod 2, the measuring mechanism 3 is arranged at one end of the supporting rod 2 far away from the base 1, the force measuring mechanism 4 is movably arranged on the measuring scale 3-1, and the force measuring mechanism 4 is used for moving along the measuring direction of the measuring scale 3-1;
when the measuring device is matched with the electric brush assembly 5, the electric brush assembly 5 is positioned on one side, close to the support rod 2, of the base 1, the electric brush assembly 5 is installed on the base 1, the central axis of the electric brush assembly 5 is overlapped with the zero-point scale mark of the measuring scale 3-1, the measuring direction of the measuring scale 3-1 is the same as the radial direction of the electric brush assembly 5, the moving direction of the force measuring mechanism 4 is ensured to be the radial direction of the electric brush assembly 5, the moving distance value of the force measuring mechanism 4 reflected on the measuring scale 3-1 is also the distance value in the radial direction of the electric brush assembly 5, and the end part of the force measuring pointer 4-1 is in contact with the electric brush 5-1 contained in the electric brush assembly 5.
When in use, the brush component 5 is arranged on the base 1, the force measuring pointer 4-1 extends downwards into the brush component 5, the force measuring pointer 4-1 is radially aligned with the brush 5-1 on the circumference of the brush component 5, the force measuring mechanism 4 is moved along the measuring direction of the measuring scale 3-1, the force measuring pointer 4-1 gradually contacts the brush 5-1 along the radial direction during the movement, the force measuring mechanism 4 generates and displays pressure, during the movement, the moving distance of the force measuring pointer 4-1 is read in real time on the measuring scale 3-1, when the moving distance reaches the radius value of the commutator (the commutator is of the existing structure, the cross section of the commutator is circular, the commutator is arranged in the circumference of the brush component 5 and contacts with each brush 5-1 on the circumference of the brush component 5), the force value displayed by the force measuring mechanism 4 is read, namely the actual contact pressure of the brush 5-1, when the contact pressure is too large or too small, the angle of the connecting spring piece 5-2 of the brush 5-1 is adjusted adaptively, so as to further realize the adjustment of the contact pressure of the brush 5-1, and after the adjustment is finished, the contact pressure of the brush 5-1 is measured again according to the method before until the contact pressure of the brush 5-1 is adjusted to a proper value.
In one embodiment of the present disclosure, as shown in fig. 1, 3 to 6, the measuring mechanism 3 is rotatably disposed at an end of the supporting rod 2 away from the base 1; the support rod 2 is vertical, the zero scale mark of the measuring tape 3-1 is superposed with the central line of the support rod 2, and the central axis of the electric brush component 5 is superposed with the central line of the support rod 2; the rotatable connection form between the measuring mechanism 3 and the support rod 2 can realize the measurement of the contact pressure of the electric brush 5-1 at different positions in the circumference of the electric brush assembly 5, the installation position of the electric brush assembly 5 does not need to be readjusted, and the convenience and the rapidness are realized;
the measuring device further comprises a rotating connecting piece 6, the rotating connecting piece 6 is rotatably arranged at one end, far away from the base 1, of the supporting rod 2, the measuring mechanism 3 is arranged on the rotating connecting piece 6, the rotating connecting piece 6 serves as an intermediate connecting part between the supporting rod 2 and the measuring mechanism 3, the measuring mechanism 3 can rotate relative to the supporting rod 2, and the rotating connecting piece 6 is specifically arranged to be a sleeve.
Furthermore, the rotating connecting piece 6 is provided with a sleeve joint part 6-1 and an insertion part 6-2 which are opposite, the sleeve joint part 6-1 is rotatably sleeved at one end of the supporting rod 2 far away from the base 1, the measuring mechanism 3 is inserted in the insertion part 6-2, so that the sleeve joint part 6-1 provides a rotatable connecting foundation between the rotating connecting piece 6 and the supporting rod 2, and the insertion part 6-2 provides a special insertion foundation for the measuring mechanism 3.
Specifically, the sleeving part 6-1 is a concave part arranged on the rotating connecting piece 6, and one end of the support rod 2 far away from the base 1 extends into the concave part; the supporting rod 2 is provided with a limiting step 2-1 matched with the end face of the sleeving part 6-1, and the limiting step 2-1 is close to one end of the supporting rod 2 far away from the base 1; when the device is installed, one end of the support rod 2, far away from the base 1, extends into the concave part, and meanwhile, the end face of the concave part is in contact with the limiting step 2-1 and is limited by the limiting step 2-1. The inserting part 6-2 is a slot formed in the rotary connecting piece 6, the measuring mechanism 3 is inserted into the slot and locked by a screw, the slot can limit the measuring mechanism 3, the inserting process is convenient and fast, and the inserting positioning is accurate.
In one embodiment of the present disclosure, as shown in fig. 1 to 3, the measuring apparatus further includes a mounting mechanism 7 for mounting the brush assembly 5, the mounting mechanism 7 is located on a surface of the base 1 close to the supporting rod 2, the supporting rod 2 passes through the mounting mechanism 7 to be connected to the base 1, the base 1 has a second mounting base groove 1-2, a lower portion of the mounting mechanism 7 is located in the second mounting base groove 1-2, the second mounting base groove 1-2 provides a stable and reliable mounting base for the mounting mechanism 7, and forms a limit for the mounting mechanism 7, so that the positioning and mounting process between the mounting mechanism 7 and the base 1 is faster, the mounting mechanism 7 has at least three jaws 7-1, the mounting mechanism 7 can be specifically configured as a three-jaw chuck, a four-jaw chuck or a six-jaw chuck, a central axis of the mounting mechanism 7 coincides with a zero-point scale line of the measuring tape 3-1, so set up, when brush subassembly 5 was installed to installation mechanism 7, each jack catch 7-1 progressively retracted in order to lock brush subassembly 5 and carry out automatic positioning to brush subassembly 5, guarantee that the axis of brush subassembly 5 and the coincidence of the zero point scale mark of measuring tape 3-1.
In an embodiment of the present disclosure, as shown in fig. 1, 4, and 7, the measuring tape 3-1 has a first position-limiting portion 3-2, the first position-limiting portion 3-2 is inserted into the slot, locked by a screw, and fixed by a metal adhesive, and the measuring mechanism 3 further includes: a secondary ruler 3-4 moving along the measuring direction of the measuring ruler 3-1, the secondary ruler 3-4 is provided with a second limit part 3-3 opposite to the first limit part 3-2, the force measuring mechanism 4 is connected with the second limit part 3-3, the force measuring pointer 4-1 is vertically aligned with the limit end surface of the second limit part 3-3, namely the limit end surface of the second limit part 3-3 is aligned with the value on the measuring ruler 3-1 and can be reflected as the moving distance value of the force measuring pointer 4-1, the second limit part 3-3 moves along the measuring direction of the measuring ruler 3-1 along with the secondary ruler 3-4, specifically, the first limit part 3-2 is connected with one end of the support rod 2 far away from the base 1, the measuring mechanism 3 can be specifically set as a vernier caliper, the first limit part 3-2 is a left outer measuring claw, the second limiting part 3-3 is the right outer measuring claw.
Further, the measuring device further comprises a mounting frame 8, and the second limiting part 3-3 and the force measuring mechanism 4 are arranged on the mounting frame 8. The mounting frame 8 is provided with a first mounting groove 8-1, the force measuring mechanism 4 is fixedly mounted in the first mounting groove 8-1 and is fastened through a screw, the first mounting groove 8-1 provides a stable and reliable mounting base for the force measuring mechanism 4, and specifically, the force measuring mechanism 4 is a tension meter, and the tension meter is conventional equipment. The mounting bracket 8 is provided with a second mounting groove 8-2, the second limiting part 3-3 is fixedly mounted in the second mounting groove 8-2 and is fastened through screws, the second limiting part 3-3 is matched with the second mounting groove 8-2, the second mounting groove 8-2 provides a stable and reliable mounting base for the right-side outer measuring claw, the structure is more reasonable, and the positioning and mounting processes of the second limiting part 3-3 are more convenient and faster.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. A measuring device is characterized by being used for measuring the contact pressure between an electric brush (5-1) and a commutator, and comprising a base (1), a support rod (2), a measuring mechanism (3) with a measuring ruler (3-1) and a force measuring mechanism (4) with a force measuring pointer (4-1);
the supporting rod (2) is arranged on the base (1), the measuring mechanism (3) is arranged at one end, far away from the base (1), of the supporting rod (2), the force measuring mechanism (4) is movably arranged on the measuring scale (3-1), and the force measuring mechanism (4) is used for moving along the measuring direction of the measuring scale (3-1);
work as measuring device and brush subassembly (5) cooperation, brush subassembly (5) are located base (1) is close to one side of bracing piece (2), the axis of brush subassembly (5) with the coincidence of the zero point scale mark of measuring tape (3-1), the measurement direction of measuring tape (3-1) with the radial direction of brush subassembly (5) is the same, the tip of dynamometry pointer (4-1) with brush (5-1) contact that brush subassembly (5) contains.
2. A measuring device according to claim 1, characterized in that the measuring mechanism (3) is rotatably arranged at an end of the supporting bar (2) remote from the base (1);
the measuring device further comprises a rotating connecting piece (6), the rotating connecting piece (6) is rotatably arranged at one end, far away from the base (1), of the supporting rod (2), and the measuring mechanism (3) is arranged on the rotating connecting piece (6).
3. The measuring device according to claim 2, wherein the rotating connecting piece (6) has a sleeve part (6-1) and a plug part (6-2) which are opposite to each other, the sleeve part (6-1) is rotatably sleeved on one end of the supporting rod (2) far away from the base (1), and the measuring mechanism (3) is plugged in the plug part (6-2).
4. The measuring device according to claim 3, wherein the sleeve joint part (6-1) is a concave part arranged on the rotating connecting piece (6), and one end of the support rod (2) far away from the base (1) extends into the concave part;
the supporting rod (2) is provided with a limiting step (2-1) matched with the end face of the sleeving part (6-1), and the limiting step (2-1) is close to one end, far away from the base (1), of the supporting rod (2).
5. A measuring device as claimed in claim 3, characterized in that the plug-in part (6-2) is a slot provided in the rotary connection (6).
6. The measuring device according to claim 1, characterized in that it further comprises a mounting mechanism (7) for mounting the brush assembly (5), said mounting mechanism (7) being located on the surface of the base (1) close to the support bar (2), said mounting mechanism (7) having at least three jaws (7-1).
7. The measuring device according to any one of claims 1 to 6, wherein the measuring tape (3-1) has a first stopper portion (3-2), and the measuring mechanism (3) further comprises: the auxiliary ruler (3-4) moves along the measuring direction of the measuring ruler (3-1), the auxiliary ruler (3-4) is provided with a second limiting part (3-3) opposite to the first limiting part (3-2), the force measuring mechanism (4) is connected with the second limiting part (3-3), and the force measuring pointer (4-1) is vertically aligned with the limiting end face of the second limiting part (3-3).
8. A measuring device according to claim 7, characterized in that the measuring device further comprises a mounting frame (8), the second limiting portion (3-3) and the force measuring means (4) being provided on the mounting frame (8).
9. The measuring device according to claim 8, characterized in that the mounting frame (8) has a first mounting groove (8-1), the force measuring means (4) being fixedly mounted in the first mounting groove (8-1).
10. The measuring device according to claim 8, wherein the mounting bracket (8) has a second mounting groove (8-2), and the second limiting portion (3-3) is fixedly mounted in the second mounting groove (8-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111221345.6A CN113970397B (en) | 2021-10-20 | Measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111221345.6A CN113970397B (en) | 2021-10-20 | Measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113970397A true CN113970397A (en) | 2022-01-25 |
| CN113970397B CN113970397B (en) | 2024-06-25 |
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| CN216012565U (en) * | 2021-10-20 | 2022-03-11 | 航天科工智能机器人有限责任公司 | Measuring device |
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