CN109211448B - Sliding resistance measuring equipment for sleeve type rod body with large length-diameter ratio - Google Patents
Sliding resistance measuring equipment for sleeve type rod body with large length-diameter ratio Download PDFInfo
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- CN109211448B CN109211448B CN201711254186.3A CN201711254186A CN109211448B CN 109211448 B CN109211448 B CN 109211448B CN 201711254186 A CN201711254186 A CN 201711254186A CN 109211448 B CN109211448 B CN 109211448B
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- sliding resistance
- guide assembly
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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
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a sliding resistance measuring device for a sleeve-type rod body with a large length-diameter ratio. The truss structure comprises a base, a truss component, a column component and a bracket component; wherein the base is mounted on the ground; the truss component comprises a guide assembly and a lower chuck, wherein the guide assembly guides the rod body, and the lower chuck positions and clamps the rod body; the upright post component consists of a counterweight component and a guide rail lead screw component; the bracket component comprises a cylinder assembly and an upper chuck, wherein the cylinder assembly pushes the upper chuck out, and the upper chuck grabs the rod body. The invention realizes the measurement of the separating tension and the closing force value of the inner cylinder and the outer cylinder of the sleeve-type rod product with large length-diameter ratio by the pulling-up, the compression and the torsion operations of the composite force sensor, has simple structure and convenient operation, and is an ideal test method for the product.
Description
Technical Field
The invention relates to a sliding resistance measuring device, in particular to a sliding resistance measuring device of a sleeve-type rod body with a large length-diameter ratio, which is particularly suitable for detecting the sliding resistance and the torsional force of a part with a regular hexagonal prism outer contour.
Background
The sliding resistance measuring equipment of the sleeve type rod body with the large length-diameter ratio is widely applied to the field of industrial automation. For sleeve-type rod products with large length-diameter ratio, the sliding resistance of the products when the inner cylinder and the outer cylinder are separated is often required to be tested, and the sliding resistance and the torque force value of the products are measured by a plurality of sensors respectively at present, which inevitably results in excessively complex structure of measuring equipment and poor consistency of measuring results.
Disclosure of Invention
In view of the above problems, the present invention provides a sliding resistance measuring apparatus for a sleeve-type rod with a large length-to-diameter ratio. The invention provides a feasible method for measuring the separation resistance and the closing resistance of the inner and outer cylinder bodies of the sleeve-type rod body with large length-diameter ratio. The real-time on-line monitoring of the sliding resistance value of the sleeve-type rod product with the large length-diameter ratio is realized. The torque value can be monitored when the inner cylinder and the outer cylinder of the sleeve-type rod body with large length-diameter ratio relatively rotate.
In order to achieve the above purpose, the technical scheme of the invention is specifically as follows:
a sliding resistance measuring device for a sleeve-type rod body with a large length-diameter ratio comprises a base, a truss component, an upright post component and a bracket component; wherein
The base is arranged on the ground;
the truss component comprises a guide assembly and a lower chuck, wherein the guide assembly guides the rod body, and the lower chuck positions and clamps the rod body;
the upright post component consists of a counterweight component and a guide rail lead screw component, wherein the counterweight component comprises a linear feed rod of a guide part and a steel wire rope of a pulling-up part, one end of the steel wire rope is connected with a balancing weight, the linear feed rod plays a role in guiding in the lifting process of the balancing weight, and the steel wire rope is pulled up to resist the gravity of the bracket component;
the bracket component comprises a cylinder assembly and an upper chuck, wherein the cylinder assembly pushes the upper chuck out, and the upper chuck grabs the rod body.
Preferably, the base is fixed to the ground by adopting foundation bolts through pouring in advance.
Preferably, a plurality of adjusting sizing blocks are arranged below the base and used for adjusting the levelness of the base.
Preferably, the upper chuck comprises three pneumatically synchronized jaws.
Preferably, the guide assembly comprises an upper guide assembly and a lower guide assembly, the upper guide assembly coarsely guides the bar body, and the lower guide assembly further precisely guides the bar body.
Preferably, the upper guide assembly comprises a polyurethane forming roller, a rolling shaft, an upper roller seat, an external adjusting nut and an internal hexagonal screw, the upper roller seat moves along the radial direction through the rotation of the external adjusting nut, and the polyurethane forming roller can be accurately attached to the rod body.
Preferably, the bracket part comprises a rotating motor, a composite force sensor, an upper chuck, a cylinder assembly and a bracket, the bracket is connected with the steel wire rope, the composite force sensor is driven to rotate by the rotating motor to measure the torque value, the upper chuck is driven to move upwards by the guide rail lead screw assembly to measure the tension and pressure values.
The invention has the beneficial effects that: the method has the advantages that the separation tension and the closing force value of the inner cylinder and the outer cylinder of the sleeve-type rod product with large length-diameter ratio are measured by the pulling-up, compression and torsion operations of the composite force sensor, the structure is simple, the operation is convenient, and the method is an ideal test method for the product.
Drawings
FIG. 1 is a schematic structural view of a sliding resistance measuring apparatus for a sleeve-type rod with a large length-diameter ratio according to the present invention;
FIG. 2 is a schematic view showing another angle of the sliding resistance measuring apparatus for a telescopic rod of the present invention;
FIG. 3 is a schematic structural view of a truss member of the present invention;
FIG. 4 is a schematic structural view of a column part according to the present invention;
FIG. 5 is a schematic view of the construction of the bracket assembly of the present invention;
FIG. 6 is a schematic structural view of an upper guide assembly according to the present invention;
fig. 7 is a schematic diagram of the working principle of the present invention.
Detailed Description
In order that the invention may be more clearly understood, the following detailed description of the embodiments of the invention is given with reference to the accompanying drawings and examples.
As shown in fig. 1, 2, 3, 4, 5 and 6, the sliding resistance measuring device for a telescopic rod body with a large length-diameter ratio of the invention comprises a base 14, a truss component 1, a column component 12 and a bracket component; wherein the base 14 is mounted to the ground; the truss component 1 comprises a guide assembly and a lower chuck 3, wherein the guide assembly guides the rod body 5, and the lower chuck 3 positions and clamps the rod body 5; the upright post component 12 consists of a counterweight component 13 and a guide rail screw rod component 6, wherein the counterweight component 13 comprises a linear polished rod 18 of a guide part and a steel wire rope 17 of a pulling part, one end of the steel wire rope 17 is connected with a balancing weight, the linear polished rod 18 guides in the lifting process of the balancing weight, and the steel wire rope 17 pulls to resist the gravity of the bracket component; the carriage assembly comprises a cylinder assembly 10 and an upper chuck 8, wherein the cylinder assembly 10 pushes out the upper chuck 8, and the upper chuck 8 grabs the rod 5.
The foundation 14 is fixed to the ground by casting beforehand using anchor bolts 16. A plurality of adjusting sizing blocks 15 are arranged below the base and used for adjusting the levelness of the base.
The guide assembly comprises an upper guide assembly 4 and a lower guide assembly 2, the upper guide assembly 4 conducts coarse guide on the rod body 5, and the lower guide assembly 2 conducts further accurate guide on the rod body 5. Wherein the upper guide assembly 4 comprises a polyurethane forming roller 19, a rolling shaft 20, an upper roller seat 21, an external adjusting nut 22 and an internal hexagonal screw 23, the upper roller seat 21 moves along the radial direction through the rotation of the external adjusting nut 22, and the polyurethane forming roller 19 can be precisely jointed with the rod body 5.
The bracket component comprises a rotating motor 11, a composite force sensor 9, an upper chuck 8, an air cylinder assembly 10 and a bracket 7, wherein the bracket 7 is connected with a steel wire rope, the rotating motor 11 drives the composite force sensor 9 to rotate to measure the torque value, the guide rail lead screw assembly 6 drives the upper chuck 8 to move upwards to measure the tension and pressure values.
The invention relates to a sliding resistance measuring device for a sleeve-type rod body with a large length-diameter ratio, which has the specific implementation working flow principle shown in figure 7, and realizes real-time online measurement of the sliding resistance of the sleeve-type rod body with the large length-diameter ratio by high-precision clamping of three pneumatic synchronous clamping claws, three-point coaxial structural design and integrated design of tension pressure and torque.
The innovation points of the invention are as follows: the composite force sensor 9 is adopted to carry out integrated design of tension, compression force and torque measurement. By adopting a vertical clamping method and a three-point coaxial structure design, the interference error is reduced, and the accuracy of the measuring result is ensured. The three pneumatic synchronous clamping jaws are adopted to realize high precision and repeatability of the grabbing.
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 (5)
1. A sliding resistance measuring device for a sleeve-type rod body with a large length-diameter ratio is characterized in that: comprises a base (14), a truss component (1), a column component (12) and a bracket component; wherein
The base (14) is arranged on the ground;
the truss component (1) comprises a guide assembly and a lower chuck (3), wherein the guide assembly guides the rod body, and the lower chuck (3) positions and clamps the rod body; the guide assembly comprises an upper guide assembly (4) and a lower guide assembly (2), the upper guide assembly (4) conducts coarse guide on the rod body, and the lower guide assembly (2) conducts further accurate guide on the rod body;
the upright post component (12) comprises a counterweight component (13) and a guide rail lead screw component (6), wherein the counterweight component (13) comprises a linear polished rod (18) of a guide part and a steel wire rope (17) of a pulling part, one end of the steel wire rope (17) is connected with a balancing weight, the linear polished rod (18) plays a role in guiding the lifting process of the balancing weight, and the steel wire rope (17) is pulled to resist the gravity of the bracket component;
the bracket component comprises a rotating motor (11), a composite force sensor (9), an upper chuck (8), a cylinder assembly (10) and a bracket (7), wherein the cylinder assembly (10) pushes out the upper chuck (8), and the upper chuck (8) grabs the rod body; the bracket (7) is connected with a steel wire rope (17), the composite force sensor (9) is driven to rotate through the rotating motor (11) to measure the torque value, the upper chuck (8) is driven to move upwards through the guide rail lead screw assembly (6), and the tension and pressure values are measured.
2. The large aspect ratio telescopic rod sliding resistance measuring apparatus according to claim 1, wherein: the base (14) is fixed on the ground through pouring in advance by adopting foundation bolts (16).
3. The large aspect ratio telescopic rod sliding resistance measuring apparatus according to claim 2, wherein: a plurality of adjusting sizing blocks (15) are arranged below the base (14) and used for adjusting the levelness of the base.
4. The large aspect ratio telescopic rod sliding resistance measuring apparatus according to claim 1, wherein: the upper chuck (8) comprises three pneumatically synchronized jaws.
5. The large aspect ratio telescopic rod sliding resistance measuring apparatus according to claim 1, wherein: the upper guide assembly (4) comprises a polyurethane forming roller (19), a rolling shaft (20), an upper roller seat (21), an external adjusting nut (22) and an internal hexagonal screw (23), the upper roller seat (21) moves along the radial direction through the rotation of the external adjusting nut (22), and the polyurethane forming roller (19) can be accurately attached to the rod body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711254186.3A CN109211448B (en) | 2017-12-03 | 2017-12-03 | Sliding resistance measuring equipment for sleeve type rod body with large length-diameter ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711254186.3A CN109211448B (en) | 2017-12-03 | 2017-12-03 | Sliding resistance measuring equipment for sleeve type rod body with large length-diameter ratio |
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| CN109211448A CN109211448A (en) | 2019-01-15 |
| CN109211448B true CN109211448B (en) | 2020-11-10 |
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| CN109211448A (en) | 2019-01-15 |
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