CN221225688U - Friction force experimental device - Google Patents
Friction force experimental device Download PDFInfo
- Publication number
- CN221225688U CN221225688U CN202322694284.6U CN202322694284U CN221225688U CN 221225688 U CN221225688 U CN 221225688U CN 202322694284 U CN202322694284 U CN 202322694284U CN 221225688 U CN221225688 U CN 221225688U
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- test block
- dynamometer
- fixed
- base
- conveying belt
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- 239000002344 surface layer Substances 0.000 claims abstract description 12
- 239000000725 suspension Substances 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a friction force experimental device which comprises a base, a test block, a conveying belt, pulleys, a dynamometer and a pull rope, wherein a suspension bracket is fixed on one side of the top of the base, the dynamometer which is longitudinally arranged is fixed at the bottom of the suspension bracket, and the pulleys which longitudinally rotate are arranged on the suspension bracket below the dynamometer; a test block is arranged in the middle of the top end of the base, and a pull rope bypassing the pulley is fixed between the dynamometer hook and the test block; the base is provided with a conveying belt which drives the test block to move towards the direction far away from the hanging frame. The advantages are that: the test block is placed on the conveyer belt, drives the test block through the conveyer belt and removes, can simulate at the uniform velocity and remove, and the dynamometer setting is between mounted frame and pulley, keeps vertical state throughout, and then improves the degree of accuracy of experiment to the reading is convenient. Through changing weight, friction surface layer or not unidimensional test piece, can change experimental factor, satisfy different experimental demand.
Description
Technical field:
The utility model relates to the technical field of experimental devices, in particular to a friction force experimental device.
The background technology is as follows:
Traditional experimental equipment for exploring influence frictional force is simpler, mainly includes test block and dynamometer, places the test block on the plank, and the test block is pulled through the dynamometer by the tester and is carried out the experiment, through changing not unidimensional test block to explore the factor that influences frictional force size. However, as the pulling force of the tester is uneven, the wood blocks cannot well realize uniform speed movement, and the spring dynamometer is difficult to keep horizontally pulled, so that the experimental accuracy is greatly influenced, the pointer of the dynamometer is difficult to keep unchanged, the dynamometer is in a moving state, and a large error is generated when the numerical value of the spring dynamometer (namely friction force) is read.
The utility model comprises the following steps:
The utility model aims to provide a friction force experimental device.
The utility model is implemented by the following technical scheme: the friction force experimental device comprises a base, a test block, a conveying belt, pulleys, a dynamometer and a pull rope, wherein a hanging frame is fixed on one side of the top of the base, the dynamometer which is longitudinally arranged is fixed at the bottom of the hanging frame, and the pulleys which longitudinally rotate are arranged on the hanging frame below the dynamometer; a conveying belt is arranged in the base, the top surface of the conveying belt is arranged above the base, and the test block is arranged at the top of the conveying belt; and the stay rope which bypasses the pulley is fixed between the dynamometer hook and the test block.
Further, the suspension bracket comprises two upright posts which are oppositely arranged, and a cross beam which is fixed between the tops of the two upright posts, and the dynamometer is fixed at the bottom of the cross beam; the lower part of each upright post is respectively provided with a long hole which is longitudinally arranged, a fixed shaft for installing the pulley is arranged between the two long holes in a penetrating way, and locking nuts are respectively and spirally connected to the fixed shafts on two sides of the long holes.
Further, a hanging ring is fixed at the end part of the test block adjacent to the hanging frame, and the pull rope is hung with the hanging ring through a hook.
Further, the test block comprises a test block main body, a placement hole is formed in the top of the test block main body, and weights are placed in the placement hole.
Further, the clamping groove is formed in the side wall of the test block main body, a friction surface layer is movably arranged at the bottom of the test block main body, and the edge of the friction surface layer is movably clamped in the clamping groove through the anchor ear.
The utility model has the advantages that: the test block is placed on the conveyer belt, drives the test block through the conveyer belt and removes, can simulate at the uniform velocity and remove, and the dynamometer setting is between mounted frame and pulley, keeps vertical state throughout, and then improves the degree of accuracy of experiment to the reading is convenient. Through changing weight, friction surface layer or not unidimensional test piece, can change experimental factor, satisfy different experimental demand.
Description of the drawings:
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a left side schematic view of fig. 1.
Fig. 3 is a schematic view of another structure of the present utility model.
Fig. 4 is a partial enlarged view of fig. 3.
Tag name
The device comprises a base, a 2-test block, a 21-hanging ring, a 22-test block main body, a 23-placing hole, a 24-weight, a 25-clamping groove, a 26-friction surface layer, a 27-hoop, a 3-conveying belt, a 4-pulley, a 5-dynamometer, a 6-stay cord, a 7-hanging frame, a 71-upright post, a 72-cross beam, a 73-long hole, a 74-fixed shaft and a 75-nut.
The specific embodiment is as follows:
In the description of the present utility model, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated azimuth or positional relationship is based on the azimuth or positional relationship shown in the drawings, only for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
Example 1: as shown in fig. 1 and 2, the friction force experimental device comprises a base 1, a test block 2, a conveying belt 3, a pulley 4, a dynamometer 5 and a pull rope 6, wherein a hanging frame 7 is fixed on one side of the top of the base 1, the longitudinally arranged dynamometer 5 is fixed at the bottom of the hanging frame 7, and the longitudinally rotating pulley 4 is arranged on the hanging frame 7 below the dynamometer 5; the inside at base 1 is provided with conveyer belt 3, and the top surface setting of conveyer belt 3 is in the top of base 1, and test block 2 sets up at the top of conveyer belt 3. A pull rope 6 which bypasses the pulley 4 is fixed between the hook of the dynamometer 5 and the test block 2. The test block 2 can be moved away from the hanger 7 by the conveyor belt 3, and uniform speed values of different values can be obtained by adjusting the rotational speed of the conveyor belt 3. Therefore, the traditional manual pulling of the wood blocks can be replaced, the speed can be controlled conveniently, and the stable force measurement value can be read. When the test block 2 moves rightwards, the dynamometer 5 is pulled by the pull rope 6, and the friction force can be measured by observing the dynamometer 5.
Specifically, the suspension bracket 7 comprises two opposite upright posts 71, and a cross beam 72 fixed between the tops of the two upright posts 71, and the dynamometer 5 is fixed at the bottom of the cross beam 72; a long hole 73 is formed in the lower portion of each upright post 71, a fixed shaft 74 for mounting the pulley 4 is inserted between the two long holes 73, and lock nuts 75 are screwed to the fixed shafts 74 on both sides of the long holes 73. The fixed shaft 74 can slide up and down in the long hole 73, so that the relative distance between the pulley 4 and the base 1 is adjusted, and the test requirements of the test blocks 2 with different heights are met; after the adjustment to the desired height, the fixing shaft 74 is fixed between the two posts 71 by tightening the lock nut 75. A hanging ring 21 is fixed at the end part of the test block 2 adjacent to the hanging frame 7, and the pull rope 6 is hung with the hanging ring 21 through a hook. Through the cooperation of couple and link 21, realized dismantling between stay cord 6 and the test piece 2 and be connected, and then be convenient for change not unidimensional test piece 2, satisfy the experiment demand.
Example 2: the overall structure is the same as that of embodiment 1, except that, as shown in fig. 3 and 4, the test block 2 includes a test block main body 22, a placement hole 23 is opened at the top of the test block main body 22, and a weight 24 is placed in the placement hole 23. According to experimental requirements, weights 24 with different masses are loaded, and friction forces between the test blocks 2 with different weights and the conveying belt 3 can be simulated. The clamping groove 25 is formed in the side wall of the test block main body 22, the friction surface layer 26 is movably arranged at the bottom of the test block main body 22, and the edge of the friction surface layer 26 is movably clamped in the clamping groove 25 through the anchor ear 27. The friction surface layer 26 can be replaced according to experimental requirements, and then the friction surface layer 26 is fixed in the clamping groove 25 through the anchor ear 27, and can be used for simulating friction force experiments among different materials through replacing the friction surface layer 26 with different materials.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (4)
1. The friction force experimental device is characterized by comprising a base, a test block, a conveying belt, pulleys, a dynamometer and a pull rope, wherein a hanging frame is fixed on one side of the top of the base, the dynamometer which is longitudinally arranged is fixed at the bottom of the hanging frame, and the pulleys which longitudinally rotate are arranged on the hanging frame below the dynamometer; a conveying belt is arranged in the base, the top surface of the conveying belt is arranged above the base, and the test block is arranged at the top of the conveying belt; the stay rope which bypasses the pulley is fixed between the dynamometer hook and the test block;
The suspension bracket comprises two upright posts which are oppositely arranged, and a cross beam which is fixed between the tops of the two upright posts, and the dynamometer is fixed at the bottom of the cross beam; the lower part of each upright post is respectively provided with a long hole which is longitudinally arranged, a fixed shaft for installing the pulley is arranged between the two long holes in a penetrating way, and locking nuts are respectively and spirally connected to the fixed shafts on two sides of the long holes.
2. The friction experiment device according to claim 1, wherein a hanging ring is fixed at an end of the test block adjacent to the hanging frame, and the pull rope is hung on the hanging ring through a hook.
3. The friction experiment device according to claim 1, wherein the test block comprises a test block body, a placement hole is formed in the top of the test block body, and weights are placed in the placement hole.
4. The friction force experimental device according to claim 3, wherein a clamping groove is formed in the side wall of the test block main body, a friction surface layer is movably arranged at the bottom of the test block main body, and the edge of the friction surface layer is movably clamped in the clamping groove through a hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322694284.6U CN221225688U (en) | 2023-10-08 | 2023-10-08 | Friction force experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322694284.6U CN221225688U (en) | 2023-10-08 | 2023-10-08 | Friction force experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221225688U true CN221225688U (en) | 2024-06-25 |
Family
ID=91547278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322694284.6U Active CN221225688U (en) | 2023-10-08 | 2023-10-08 | Friction force experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221225688U (en) |
-
2023
- 2023-10-08 CN CN202322694284.6U patent/CN221225688U/en active Active
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