CN116772680A - Pulley runout tester and testing method - Google Patents
Pulley runout tester and testing method Download PDFInfo
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- CN116772680A CN116772680A CN202311070271.XA CN202311070271A CN116772680A CN 116772680 A CN116772680 A CN 116772680A CN 202311070271 A CN202311070271 A CN 202311070271A CN 116772680 A CN116772680 A CN 116772680A
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- 229910000831 Steel Inorganic materials 0.000 description 2
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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
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Abstract
The application relates to the technical field of pulley jump detection, in particular to a pulley jump tester and a testing method, wherein the device comprises the following components: a work table; the fixing component is arranged on the workbench and used for fixing the wheel frame; the elastic piece (302), the elastic piece (302) is arranged on the fixed part (2), the lower end of the elastic piece (302) is connected with the fixed part (2), the upper end of the elastic piece (302) is elastically abutted against the upper edge of the pulley (6), the pulley (6) is enabled to swing towards the limit of the opposite side under the elastic action of the elastic piece (302), the adjusting part (3) is arranged on the opposite side of the elastic piece (302) and is used for extruding the pulley (6) to overcome the elastic force of the elastic piece (302) so as to enable the elastic piece (302) to swing towards the opposite direction; and the detection component (4) is arranged on the same side of the elastic sheet (302) and is used for detecting the jumping degree of the pulley (6). The pulley jumping tester can directly test the jumping degree of the pulley, and is simple and effective.
Description
Technical Field
The application relates to the technical field of pulley jump detection, in particular to a pulley jump tester and a pulley jump test method.
Background
In modern designs, sliding doors are adopted for kitchens, study rooms, conference rooms and the like, so that the light transmission and visual effect improvement are improved. Most of the carrying capacity of the sliding door is carried on the pulley, the push-pull effect of the sliding door can be directly affected by the quality of the pulley, if the manufacturing tolerance of the pulley is large, the pulley can possibly cause the runout of the pulley in the axial direction or the radial direction, so that the sliding door is unsmooth, and even the fluctuation of the runout up and down can be generated when the sliding door is pushed; meanwhile, after the pulley is used for a certain number of times, because the pulley is inevitably worn, gaps are generated due to the wear, and therefore the pulley can jump. Therefore, for the sheave runout test (the runout detection value is the runout degree here), it is necessary to further guide the development, whether it is a factory test or a test after a certain number of post-use. The existing pulley jump test can be almost detected only by naked eyes, and a set of complete detection tool is not provided, so that the high-precision pulley jump detection cannot be satisfied.
Disclosure of Invention
In order to solve the technical problems existing in the prior art, the application provides a pulley jump tester and a pulley jump testing method.
The technical scheme of the application is as follows: a pulley runout tester for detecting the runout of a pulley, wherein the runout is the maximum runout variation allowed when the pulley to be tested rotates one round around a reference axis, the pulley is mounted on a wheel frame, and the upper surface of the pulley is higher than the wheel frame, comprising: a work table;
the fixing component is arranged on the workbench and used for fixing the wheel frame;
the elastic piece is arranged on the fixed part, the lower end of the elastic piece is connected with the fixed part, and the upper end of the elastic piece is elastically abutted with the upper edge of the pulley higher than the wheel frame, so that the pulley deflects towards the limit of the opposite side under the elastic action of the elastic piece;
the adjusting component is arranged at the opposite side of the elastic sheet and is used for extruding the control pulley to overcome the control of the elastic sheet and deflect in the opposite direction;
and the detection component is arranged on the same side of the elastic sheet and is used for detecting the jumping degree of the pulley.
Further, the fixing member includes: the fixed slot, fixed slot one side is equipped with the fixed plate, the fixed slot opposite side is equipped with the backup pad, be equipped with the ejector pin in the backup pad, ejector pin and backup pad threaded connection make the ejector pin support the wheel frame tightly on the fixed plate towards the tip of fixed plate one end through twisting the ejector pin.
Further, the adjusting part includes:
the adjusting rod is positioned at the opposite side of the elastic sheet and is in threaded connection with the fixing part; the end part of the adjusting rod, which faces one side of the pulley, is used for abutting against the pulley and pushing the edge of the pulley.
Furthermore, a hand wheel is arranged on the outer side of the adjusting rod, the hand wheel is of a cylindrical structure, and a pattern net surface is arranged on the outer outline of the hand wheel.
Further, the adjusting lever includes: the telescopic pipe is arranged at the front end of the threaded section, a telescopic rod is arranged in the telescopic pipe in a sleeved mode, an elastic component is arranged between the telescopic rod and the telescopic pipe, when external force is applied, the telescopic rod can achieve a telescopic function in the telescopic pipe, and the elastic force indirectly applied to the pulley by the elastic component is larger than that directly applied to the pulley by the elastic piece.
Further, the outer end of the telescopic rod is a spherical surface.
Further, the detection component is a dial indicator which is installed and fixed on the workbench and used for detecting the jumping degree of the pulley.
Further, be equipped with the fine setting on the fixed plate and smooth group, the fine setting is smooth to be organized includes:
the transverse sliding block is arranged on the upper part of the fixed plate and is connected with the fixed plate in a sliding way;
the positioning sliding block is arranged on the transverse sliding block, can vertically slide on the transverse sliding block, is provided with a protruding part at the upper part and a positioning groove at the lower part; when the device works, the protruding part is lapped on the pulley to be detected, so that the probe of the dial indicator is stuck to and penetrates through the positioning groove to be detected.
Further, the fine adjustment slide group further includes: the support sliding block is arranged between the positioning sliding block and the transverse sliding block, the support sliding block and the transverse sliding block are in tight fit sliding connection in the vertical direction, and the upper end of the support sliding block is provided with a support groove corresponding to the positioning groove;
when the positioning device works, after the position of the positioning groove of the positioning slide block is adjusted, the supporting slide block is adjusted, so that the supporting groove on the supporting slide block is attached to the positioning groove, and the hole is formed.
A testing method of a pulley jump tester uses the testing method of the pulley jump tester, and the method comprises the following steps:
step A: the pulley of the pulley frame is horizontally placed in the fixed groove, the ejector rod is rotated to enable the end of the ejector rod to enable the pulley of the pulley frame to be abutted against the fixed plate, the elastic sheet is abutted against the pulley to be tested, and the pulley to be tested is pushed to the opposite side;
and (B) step (B): the fine adjustment sliding group is adjusted, the transverse sliding block is slid, the transverse sliding block is positioned right in front of the pulley to be detected, the positioning sliding block is moved, the protruding portion of the positioning sliding block is arranged on the top of the pulley to be detected, and therefore a detection point is determined through the positioning groove of the positioning sliding block;
step C: the dial indicator is fixed through the magnetic base, so that a probe of the dial indicator is attached to and penetrates through the positioning groove, the end part of the probe is contacted with a detection point of a pulley to be detected, and then the dial indicator is adjusted to a zero position;
step D: moving the supporting slide block to enable the supporting groove of the supporting slide block to be close to the positioning groove to form a circular hole;
step E: and rotating the hand wheel to enable the adjusting rod to push the pulley to be measured to overcome the elasticity of the elastic sheet and swing towards one side of the dial indicator, and rotating the hand wheel for half turn until the reading of the dial indicator is unchanged, and reading out the final reading of the dial indicator, namely the jumping degree of the pulley to be measured.
The application has the beneficial effects that the elastic sheet is propped against the pulley to be tested, the pulley is deflected to the opposite side, the probe of the dial indicator is propped against a uniform detection point by utilizing the fine adjustment sliding group, and then the dial indicator is zeroed; then the adjusting rod is rotated by the hand wheel, the elastic force of the elastic sheets at the opposite sides is overcome by the adjusting rod, reverse deflection is carried out until the pulley to be tested is reversely deflected to the limit condition, namely, the reading when the numerical value of the dial indicator is unchanged is the jumping degree of the pulley.
Drawings
FIG. 1 is a schematic perspective view of the present application;
FIG. 2 is a schematic front view of the present application;
FIG. 3 is a schematic top view of the present application;
FIG. 4 is an enlarged schematic view of a portion of FIG. 1;
FIG. 5 is a schematic perspective view of a fine adjustment slide assembly;
FIG. 6 is an exploded view of a fine tuning slide;
FIG. 7 is a schematic structural view of an adjusting lever;
FIG. 8 is a schematic diagram of the connection between the adjustment member, the spring plate, and the dial indicator;
reference numerals: 1. a work table; 2. a fixing member; 201. a fixing groove; 202. a fixing plate; 203. a support plate; 204. a push rod; 3. an adjusting member; 301. an adjusting rod; 3011. a threaded section; 3012. a telescopic tube; 3013. an elastic member; 3014. a spherical surface; 3015. a telescopic rod; 302. a spring plate; 303. a hand wheel; 4. a detection section; 401. a magnetic base; 402. a dial indicator; 5. fine tuning the sliding group; 501. a transverse slide block, 502 and a positioning slide block; 503. a protruding portion; 504. a positioning groove; 505. a support slider; 506. a support groove; 6. a pulley; 7. and a wheel frame.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1:
referring to fig. 1 to 8, a pulley runout tester for detecting a runout degree of a pulley 6, wherein the runout degree refers to a maximum runout variation allowed when the pulley 6 to be tested rotates one round about a reference axis, the pulley 6 is mounted on a wheel frame 7, and an upper surface of the pulley is higher than the wheel frame 7, comprising:
a work table 1;
a fixing part 2, wherein the fixing part 2 is arranged on the workbench 1 and is used for fixing the wheel frame 7;
the elastic piece 302 is arranged on the fixed part 2, the lower end of the elastic piece 302 is connected with the fixed part 2, and the upper end of the elastic piece is elastically abutted against the upper edge of the pulley 6 higher than the wheel frame, so that the pulley 6 swings towards the limit of the opposite side under the elastic action of the elastic piece 302;
the adjusting component 3 is arranged on the opposite side of the elastic sheet 302 and is used for extruding the control pulley 6 to overcome the control of the elastic sheet 302 and deflect in the opposite direction;
and the detection component 4 is arranged on the same side of the elastic sheet 302 and is used for detecting the jumping degree of the pulley 6.
The workbench 1 is made of a steel plate, the thickness of the workbench is preferably 10-20 mm, a fixing part 2 is fixedly connected to the workbench 1, and the fixing part 2 can be in threaded connection, welding and riveting fixation with the workbench 1;
during installation, the wheel frame 7 with the pulley 6 is placed into the fixing part 2 for fixing, wherein the wheel frame 7 is installed and fixed in a horizontal state with the workbench 1 by taking the workbench 1 as a reference surface, thereby ensuring the unification of detection orientations and ensuring accurate and reliable detection data.
During the adjustment, the pulley 6 to be detected can be moved from one deflection limit to the other deflection limit by the adjustment element 3, so that the maximum runout is detected by the detection element 4.
During detection, the detection component 4 is enabled to always detect the same detection point of the pulley 6 to be detected, so that the comparability of detection parameters and the standardization of detection data are realized.
In this embodiment, the fixing member 2 includes: the fixed slot 201, fixed slot 201 one side is equipped with fixed plate 202, fixed slot 201 opposite side is equipped with backup pad 203, be equipped with ejector pin 204 on the backup pad 203, ejector pin 204 and backup pad 203 threaded connection, through twisting ejector pin 204, make ejector pin 204 to support the wheel frame 7 tightly on fixed plate 202 towards the tip of fixed plate 202 one end.
Wherein the bottom of the fixing plate 202 and the bottom of the supporting plate 203 are connected together through a bottom plate, the height of the fixing plate 202 is smaller than the height of the supporting plate 203, the ejector rod 204 is installed on the upper portion of the supporting plate 203, the length of the ejector rod 204 is larger than the width of the fixing groove 201 minus the width of the wheel frame 7 (namely, the ejector rod 204 can be abutted on the wheel frame 7), in the embodiment, the end portion of the ejector rod 204 is in surface contact with the wheel frame 7; and the number of the ejector rods 204 is two, and the two ejector rods are symmetrically distributed on the supporting plate 203 to achieve the effect of fixing and stabilizing.
The outer end of the ejector rod 204 is provided with a round knob, and the knob is convenient for twisting the ejector rod 204.
In this embodiment, the adjusting part 3 includes:
the adjusting rod 301 is positioned at the opposite side of the elastic sheet, and is in threaded connection with the fixing part 2; the end of the adjusting rod 301 facing the pulley 6 is used for abutting against the pulley 6 and pushing the edge of the pulley 6.
Wherein, the axial direction of the adjusting rod 301 points to the pulley 6 exposed out of the wheel frame 7, and the pressure applied by the adjusting rod 301 is the same as the elastic part on the pulley 6 applied by the elastic sheet 302 and the direction is opposite; when the pulley to be measured is used, the adjusting rod 301 is separated from the pulley 6, and only the elastic sheet 302 is independently acted on the pulley 6, so that the pulley to be measured 6 can deflect to the opposite side of the elastic sheet 302 by the maximum angle; during detection, the pulley 6 is pressed by rotating the adjusting rod 301 through the hand wheel 303, so that the pulley 6 swings to the maximum angle towards the opposite side of the adjusting rod 301 against the elastic force of the elastic piece 302, and the maximum jumping degree of the pulley 6 can be detected.
In this embodiment, a hand wheel 303 is disposed on the outer side of the adjusting rod 301, the hand wheel 303 is in a cylindrical structure, and a patterned mesh surface is disposed on the outer contour of the hand wheel 303.
The rotation surface of the hand wheel 303 may be a net surface turned by a lathe, or may be a prismatic surface inserted by a gear shaper, or may be another machining surface for increasing friction force, so as to prevent slipping and increase hand feeling, in this embodiment, the diameter of the hand wheel 303 is preferably greater than the diameter of the adjusting rod 301 by more than 2 times, and according to the lever principle, the larger the diameter of the hand wheel 303, the longer the lever arm, and the more labor-saving the rotation.
In this embodiment, the adjusting lever 301 includes: the screw thread section 3011, screw thread section 3011 front end is equipped with flexible pipe 3012, flexible pipe 3012 endotheca is equipped with telescopic link 3015, be equipped with elastomeric element 3013 between telescopic link 3015 and the flexible pipe 3012, when receiving external force, telescopic link 3015 can realize flexible function to flexible pipe 3012 in, just elastomeric element 3013 indirectly applys the elasticity on pulley 6 more than the elastic force that shell fragment 302 directly applyed on pulley 6.
The telescopic rod 3015 is in telescopic fit with the telescopic tube 3012, the elastic force of the telescopic rod 3015 applied to the pulley 6 is larger than the elastic force of the elastic sheet 302 applied to the pulley 6, namely when the telescopic rod 3015 moves forwards against the elastic force of the elastic sheet 302, the relative position of the telescopic rod 3015 and the telescopic tube 3012 can be kept unchanged, until the pulley 6 is completely extruded to the limit position, the elastic sheet 302 does not act, the telescopic rod 3015 continues to be extruded, and the pulley 6 stops swinging at the moment, so that the telescopic rod 3015 can shrink inwards of the telescopic tube 3012; the purpose of this construction is to achieve overload protection, when the movement of the telescopic rod 3015 relative to the telescopic tube 3012 is observed, i.e. the pulley 6 has reached the deflection limit. So that no damage to the sheave 6 by excessive compression occurs.
Compared with the integrally formed adjusting rod 301, the adjusting rod 301 has the advantage that the integrally formed adjusting rod 301 can be effectively prevented from being extruded to the opposite side under the action of the hand wheel 303, and the possibility of secondary damage to the pulley 6 to be tested exists.
In this embodiment, the outer end of the telescopic rod 3015 is a spherical surface 3014.
Because the spherical surface 3014 is in point contact with the pulley 6, the contact point can change in angle in the extrusion process, so as to avoid overlarge contact area change, the pulley 6 can shake left and right, and the minimum spherical surface point contact is adopted, so that the minimum contact damage can be caused to the surface of the pulley 6.
In this embodiment, the detecting component 4 is a dial indicator 402, and the dial indicator 402 is mounted and fixed on the workbench 1 through the magnetic base 401, and is used for detecting the jumping degree of the pulley (6).
The magnetic attraction base 401 is provided with a magnetic knob for magnetic force adjustment;
the probe of the dial indicator 402 faces the pulley 6, and the dial indicator 402 can be adjusted up and down on the magnetic base 401.
Wherein, be equipped with the polished rod on the magnetism suction base 401, percentage table 402 cover is established on the polished rod, fixes on the polished rod through the knob, and percentage table 402 can slide from top to bottom on the polished rod.
In this embodiment, the fixing plate 202 is provided with a fine adjustment sliding set 5, and the fine adjustment sliding set 5 includes:
the transverse sliding block 501 is arranged on the upper part of the fixed plate 202 and is in sliding connection with the fixed plate 202;
the positioning slide block is arranged on the transverse slide block 501, can vertically slide on the transverse slide block 501, is provided with a protruding part 503 at the upper part and a positioning groove 504 at the lower part; in operation, the protruding portion 503 is lapped on the pulley 6 to be tested, so that the probe of the dial indicator 402 is attached to and passes through the positioning slot 504 for detection.
The function of the fine adjustment sliding set 5 is to accurately position the detection point of the pulley 6, so that the probe of the dial indicator can be aligned to the same detection point each time, namely, the distance from the detection point to the center of a circle is fixed, consistency and comparability of detection parameters can be ensured, and the fine adjustment sliding set has great reference and comparison significance for research and development of new pulley products and data analysis of products after a period of time.
Specifically, in use, the wheel frame 7 with the pulley 6 is placed in the fixing groove 201 for fixing; the detecting component 4 is fixed again, but the detecting component 4 and the pulley 6 to be detected are difficult to align at one time, so that accurate positioning is required by fine adjustment of the sliding group 5, firstly, the transverse sliding block 501 is moved to the pulley 6 to be detected, and then the protruding part 503 of the positioning sliding block is put on the top of the pulley 6 to be detected, wherein the protruding part 503 in the embodiment can be a thin steel plate or a thin plastic plate; the positioning groove 504 at the lower part of the positioning slide block locks the detection point; the position of the probe of the dial gauge 402 is determined with the positioning groove 504 as a positioning reference.
In this embodiment, the fine adjustment slide set 5 further includes: the supporting slide block 505 is arranged between the positioning slide block and the transverse slide block 501, the supporting slide block 505 and the transverse slide block 501 are in tight fit sliding connection in the vertical direction, and a supporting groove 506 corresponding to the positioning groove 504 is formed in the upper end of the supporting slide block 505;
when the positioning device works, after the position of the positioning groove 504 of the positioning slide block is adjusted, the supporting slide block 505 is adjusted, so that the supporting groove 506 on the supporting slide block 505 is attached to the positioning groove 504, and a hole shape is formed.
The test method of the pulley jump tester adopts the pulley jump tester, and the method comprises the following steps:
step A: the pulley 6 of the pulley frame 7 is horizontally placed in the fixed groove 201, the ejector rod 204 is rotated to enable the end of the ejector rod to enable the pulley 6 of the pulley frame 7 to be abutted against the fixed plate 202, the elastic sheet 302 is enabled to be abutted against the pulley 6 to be tested, and the pulley 6 to be tested is pushed to the opposite side;
and (B) step (B): the fine adjustment sliding group 5 is adjusted, the transverse sliding block 501 is slid, the transverse sliding block 501 is positioned right in front of the pulley 6 to be detected, the positioning sliding block is moved, the protruding part 503 of the positioning sliding block is arranged on the top of the pulley 6 to be detected, and therefore a detection point is determined through the positioning groove 504 of the positioning sliding block;
step C: the dial indicator 402 is fixed through the magnetic base 401, so that a probe of the dial indicator 402 is attached to and passes through the positioning groove 504, the end part of the probe is contacted with a detection point of the pulley 6 to be detected, and then the dial indicator 402 is adjusted to a zero position;
step D: moving the supporting slider 505 to make the supporting groove 506 of the supporting slider 505 and the positioning groove 504 abut together to form a circular hole;
step E: the hand wheel 303 is rotated, so that the adjusting rod 301 pushes the pulley 6 to be measured to overcome the elasticity of the elastic sheet 302 and deflect towards one side of the dial indicator 402, and when the reading of the dial indicator 402 is unchanged, the hand wheel 303 is rotated for half turn, and the final reading of the dial indicator 402 is read, namely the jumping degree of the pulley 6 to be measured.
The beneficial effects of the application are that the elastic sheet 302 is propped against the pulley 6 to be tested, the pulley 6 is deflected to the opposite side, then the probe of the dial indicator 402 is propped against a unified detection point by utilizing the fine adjustment sliding group 5, and then the dial indicator 402 is zeroed; then the adjusting rod 301 is rotated by the hand wheel 303, the elastic force of the elastic sheet 302 at the opposite side is overcome by utilizing the adjusting rod 301 to prop against the other side of the pulley 6, reverse deflection is carried out until the pulley 6 to be detected reversely deflects to the limit condition, namely, the reading when the numerical value of the dial indicator 402 is unchanged is the jumping degree of the pulley 6.
In describing embodiments of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "inner", "outer", "inside", "outside", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Wherein "inside" refers to an interior or enclosed area or space. "peripheral" refers to the area surrounding a particular component or region.
In the description of embodiments of the present application, the terms "first," "second," "third," "fourth" 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 defining "a first", "a second", "a third" and a fourth "may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In describing embodiments of the present application, it should be noted that the terms "mounted," "connected," and "assembled" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, unless otherwise specifically indicated and defined; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the description of embodiments of the application, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
In describing embodiments of the present application, it will be understood that the terms "-" and "-" are intended to be inclusive of the two numerical ranges, and that the ranges include the endpoints. For example: "A-B" means a range greater than or equal to A and less than or equal to B. "A-B" means a range of greater than or equal to A and less than or equal to B.
In the description of embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A pulley runout tester for detecting the runout of a pulley (6), wherein the runout is the maximum deflection that occurs when the pulley (6) being tested rotates around a reference axis, the pulley (6) is mounted on a wheel frame (7), and the upper surface of the pulley is higher than the wheel frame (7), characterized by comprising: a work table (1);
the fixing component (2) is arranged on the workbench (1) and used for fixing the wheel frame (7);
the elastic piece (302), the elastic piece (302) is arranged on the fixed part (2), the lower end of the elastic piece (302) is connected with the fixed part (2), the upper end of the elastic piece (302) is elastically abutted against the upper edge of the pulley (6), so that the pulley (6) swings towards the limit of the opposite side under the elastic action of the elastic piece (302);
the adjusting component (3) is arranged at the opposite side of the elastic sheet (302) and is used for extruding the pulley (6) to overcome the elastic force of the elastic sheet (302) so as to enable the elastic sheet to deflect in the opposite direction;
and the detection component (4) is arranged on the same side of the elastic sheet (302) and is used for detecting the jumping degree of the pulley (6).
2. The sheave runout tester of claim 1, wherein: the fixing member (2) includes: fixed slot (201), fixed slot (201) one side is equipped with fixed plate (202), fixed slot (201) opposite side is equipped with backup pad (203), be equipped with ejector pin (204) on backup pad (203), ejector pin (204) and backup pad (203) threaded connection make ejector pin (204) support wheel frame (7) tight on fixed plate (202) towards the tip of fixed plate (202) one end through twisting ejector pin (204).
3. A sheave runout tester according to claim 1 or 2, characterized in that: the adjusting part (3) comprises:
the adjusting rod (301) is positioned on the opposite side of the elastic sheet, and is in threaded connection with the fixing part (2); the end of the adjusting rod (301) facing the pulley (6) is used for abutting against the edge of the pulley (6).
4. A sheave runout tester according to claim 3, wherein: the outer side of the adjusting rod (301) is provided with a hand wheel (303), the hand wheel (303) is of a cylindrical structure, and the outline of the hand wheel (303) is provided with a pattern mesh surface.
5. A sheave runout tester according to claim 3, wherein: the adjusting lever (301) includes: screw thread section (3011), screw thread section (3011) front end is equipped with flexible pipe (3012), flexible pipe (3012) endotheca is equipped with telescopic link (3015), be equipped with elastomeric element (3013) between telescopic link (3015) and flexible pipe (3012), when receiving external force, telescopic link (3015) can realize flexible function in flexible pipe (3012), just elastomeric element (3013) are indirect to be exerted elasticity on pulley (6) and are greater than elastic force that shell fragment (302) directly exerted on pulley (6).
6. The sheave runout tester according to claim 5, wherein: the outer end of the telescopic rod (3015) is a spherical surface (3014).
7. The sheave runout tester of claim 1, wherein: the detection component (4) is a dial indicator (402), and the dial indicator (402) is installed and fixed on the workbench (1) and used for detecting the jumping degree of the pulley (6).
8. The sheave runout tester of claim 2, wherein: the fixed plate (202) is provided with a fine adjustment sliding group (5), and the fine adjustment sliding group (5) comprises:
the transverse sliding block (501) is arranged at the upper part of the fixed plate (202) and is in sliding connection with the fixed plate;
the positioning slide block is arranged on the transverse slide block (501), can vertically slide on the transverse slide block (501), is provided with a protruding part (503) at the upper part and a positioning groove (504) at the lower part; when the device works, the protruding part (503) is lapped on the pulley (6) to be detected, so that the probe of the dial indicator (402) is attached to and passes through the positioning groove (504) for detection.
9. The sheave runout tester of claim 8, wherein: the fine adjustment slide group (5) further comprises: the support sliding block (505), the support sliding block (505) is arranged between the positioning sliding block and the transverse sliding block (501), the support sliding block (505) and the transverse sliding block (501) are in tight fit sliding connection in the vertical direction, and a support groove (506) corresponding to the positioning groove (504) is formed in the upper end of the support sliding block (505);
when the positioning device works, after the position of the positioning groove (504) of the positioning slide block is adjusted, the supporting slide block (505) is adjusted, so that the supporting groove (506) on the supporting slide block (505) is attached to the positioning groove (504) to form a hole.
10. A method of testing a sheave runout tester, applied to a sheave runout tester as claimed in any one of claims 1 to 9, the method comprising the steps of:
step A: the pulley (6) of the pulley frame (7) is horizontally placed in the fixed groove (201), the ejector rod (204) is rotated to enable the end of the ejector rod to enable the pulley (6) of the pulley frame (7) to be abutted against the fixed plate (202), the elastic piece (302) is enabled to be abutted against the pulley (6) to be tested, and the pulley (6) to be tested is pushed to the opposite side;
and (B) step (B): the fine adjustment sliding group (5) is adjusted, the transverse sliding block (501) is slid, the transverse sliding block (501) is positioned right in front of the pulley (6) to be detected, the positioning sliding block is moved, the protruding part (503) of the positioning sliding block is arranged on the top of the pulley (6) to be detected, and therefore a detection point is determined through the positioning groove (504) of the positioning sliding block;
step C: a dial indicator (402) is fixed through a magnetic base (401), a probe of the dial indicator (402) is made to be attached to and pass through a positioning groove (504), the end part of the probe is made to be in contact with a detection point of a pulley (6) to be detected, and then the dial indicator (402) is adjusted to a zero position;
step D: moving the supporting slide block (505) to enable the supporting groove (506) of the supporting slide block (505) to be close to the positioning groove (504) to form a circular hole;
step E: and rotating the hand wheel (303) to enable the adjusting rod (301) to push the pulley (6) to be measured to overcome the elasticity of the elastic sheet (302) and deflect towards one side of the dial indicator (402), and rotating the hand wheel (303) for half turn until the reading of the dial indicator (402) is unchanged, and reading out the final reading of the dial indicator (402), namely, the jumping degree of the pulley (6) to be measured.
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| Publication number | Publication date |
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| CN116772680B (en) | 2023-11-24 |
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