CN217901391U - Marshall stability test appearance - Google Patents
Marshall stability test appearance Download PDFInfo
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- CN217901391U CN217901391U CN202221292939.6U CN202221292939U CN217901391U CN 217901391 U CN217901391 U CN 217901391U CN 202221292939 U CN202221292939 U CN 202221292939U CN 217901391 U CN217901391 U CN 217901391U
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- pressure head
- flow value
- lower pressure
- host computer
- computer base
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Abstract
The utility model discloses a marshall stability tester, including the host computer base, be provided with control system in the host computer base, host computer base tip is provided with control panel and control knob, and host computer base top is equipped with the portal frame that comprises two stands and a crossbeam, be provided with dynamometry portion, flow value measurement portion, upper pressure head, lower pressure head and sliding column in the portal frame, upper pressure head and lower pressure head cup joint on the sliding column, wherein upper pressure head and lower pressure head outside cover have antiseized heat preservation film; the anti-sticking heat-insulating film is adopted, so that the upper pressure head and the lower pressure head can be prevented from being stuck by a test piece when being separated, the test speed and the test accuracy are accelerated, and the excessive temperature can be prevented from passing after the upper pressure head and the lower pressure head are subjected to water bath, so that the test accuracy is further improved; the device has simple structure, few additional components, more portability and convenient use.
Description
Technical Field
The utility model belongs to road and bridge performance test field, more specifically says, the utility model relates to a marshall stability test appearance.
Background
The marshall stability tester is suitable for measuring the thermal stability and the plastic deformation resistance of the asphalt mixture, namely the stability and the flow value. In actual work, the upper pressure head and the lower pressure head of a Marshall stability tester are often stuck by a test piece, so that the test speed is slowed down, the temperature of the upper pressure head and the lower pressure head is reduced quickly after the upper pressure head and the lower pressure head are taken out from a water bath, the heat preservation capability is poor, polytetrafluoroethylene is commonly called as 'plastic king', and the polytetrafluoroethylene is a high polymer prepared by polymerizing tetrafluoroethylene serving as a monomer. White wax, translucence, heat resistance and cold resistance are excellent, the polytetrafluoroethylene has the characteristic of high temperature resistance, and the friction coefficient is extremely low, so that the polytetrafluoroethylene can be used as an ideal coating for easily cleaning the inner layer of the water pipe besides the lubricating effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the temperature drops too fast a marshall stability test appearance after avoiding upper and lower pressure head to be stuck and upper and lower pressure head water bath.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: the utility model provides a marshall stability test appearance, includes the host computer base, is provided with control system in the host computer base, and host computer base tip is provided with control panel and control knob, and host computer base top is equipped with the portal frame of compriseing two stands and a crossbeam, be provided with dynamometry portion, flow value measurement portion, go up pressure head, pressure head and sliding column down in the portal frame, go up the pressure head and press the head cup joint down on the sliding column, wherein go up the pressure head and press the outside cover of head down and have antiseized heat preservation film.
The utility model discloses a marshall stability test appearance, dynamometry portion includes screw jack, force cell sensor, jib and tray, and screw jack sets up at the planar central point in host computer base top and puts, and the tray is placed at the screw jack top, the pressure head setting is in the tray down, and screw jack's rotation is controlled by control system, the jib top with the crossbeam welding, the jib bottom with it can dismantle the connection through the fast-assembling joint to go up the pressure head, and force cell sensor fixed mounting is at the jib middle part, and the electricity is connected between force cell sensor's the signal output part and the signal receiving part of control system.
Through the above setting: taking a screw jack as power output, and extruding an upper pressure head and a lower pressure head to a test piece, wherein the test piece is placed on the lower pressure head, the upper pressure head does not act, and the lower pressure head is extruded from the lower part to the upper part; the upper and lower pressure heads are arranged on the tray, the quick coupler is arranged between the upper pressure head and the force cell, the quick assembly and disassembly are convenient, the installation time can be saved, the upper and lower pressure heads are placed on the tray during the test, and the upper pressure head is pushed upwards into the coupling hole of the quick coupler, so that the automatic locking can be realized; when the upper pressure head is disassembled, the handle rod of the quick connector is pulled out, the quick connector can be disassembled, the test is started, the upper pressure head and the lower pressure head are separated, and the test piece can be quickly loaded. After the test, the tray descends, the quick connector locks the upper pressure head, the upper pressure head and the lower pressure head are separated, the test piece is taken out, the test time is shortened, and the operation is convenient.
The utility model discloses a marshall stability test appearance, flow value measurement portion is including flow value sensor lasso and flow value sensor, and flow value sensor lasso cup joints on the sliding column, flow value sensor is fixed to be placed on flow value sensor lasso, and the signal output part of flow value sensor is connected with the signal receiving terminal of control system between electricity.
Through the above setting: the flow value sensor lasso can be sleeved on any one of the two sliding columns, the two sliding columns are in sliding connection, and the size of a flow value can be calculated through the sliding stroke of the flow value sensor lasso.
The utility model discloses a marshall stability test appearance, antiseized heat preservation film adopts polytetrafluoroethylene to make.
Through the above setting: because the polytetrafluoroethylene has good lubricity and heat resistance, the polytetrafluoroethylene completely conforms to the material selection of the anti-sticking heat-insulating film and can be selected as a preferred material.
The utility model discloses a marshall stability test appearance, antiseized heat preservation film both sides are equipped with the opening.
Through the above setting: the upper and lower pressure head both sides need cup joint with the slip post, and the opening is in order to reserve the mounted position of slip post.
Adopt the utility model discloses the scheme compares with prior art, has following beneficial effect:
1. adopt antiseized heat preservation film, one can prevent that pressure head from top to bottom is in the detached time, is glued by the test piece for experimental speed and experimental accuracy come on the pressure head water bath from top to bottom, can prevent the too fast lapse of temperature, further increased experimental accuracy.
2. The device has simple structure, few additional components, more portability and convenient use.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
The following brief description of the drawings and reference numerals in the drawings forms a part of this specification:
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an axial view of the anti-sticking thermal film of the present invention;
fig. 4 is a top view of the anti-sticking thermal insulation film of the present invention.
Labeled as: 1. a host base; 2. a control panel; 3. a control knob; 4. a screw jack; 5. a tray; 6. a column; 7. a cross beam; 8. a sliding post; 9. a flow value sensor lasso; 10. a flow value sensor; 11. a force sensor; 12. a boom; 13. an upper pressure head; 14. a lower pressure head; 15. a test piece; 16. an anti-sticking heat-insulating film; 17. and (4) opening.
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail to explain, for example, the shapes and structures of the components, the mutual positions and connection relationships among the components, the functions and working principles of the components, the manufacturing process, and the operation and use method of the components, so as to help those skilled in the art to understand the concept and technical solutions of the present invention more completely, accurately and deeply.
A Marshall stability tester comprises a main machine base 1, a control system is arranged in the main machine base 1, a control panel 2 and a control knob 3 are arranged at the end part of the main machine base 1, a portal frame consisting of two upright posts 6 and a cross beam 7 is arranged at the top part of the main machine base 1, a force measuring part, a flow value measuring part, an upper pressure head 13, a lower pressure head 14 and a sliding post 8 are arranged in the portal frame, the upper pressure head 13 and the lower pressure head 14 are sleeved on the sliding post 8, an anti-sticking heat-insulating film 16 is sleeved outside the upper pressure head 13 and the lower pressure head 14, the force measuring part comprises a screw jack 4, a force measuring sensor 11, a hanging rod 12 and a tray 5, the screw jack 4 is arranged at the central position of the top plane of the main machine base 1, the tray 5 is arranged at the top part of the screw jack 4, the lower pressure head 14 is arranged in the tray 5, the rotation of the screw jack 4 is controlled by a control system, the top of the suspender 12 is welded with the cross beam 7, the bottom of the suspender 12 is detachably connected with the upper pressure head 13 through a quick coupler, the force sensor 11 is fixedly arranged in the middle of the suspender 12, a signal output end of the force sensor 11 is electrically connected with a signal receiving end of the control system, the flow value measuring part comprises a flow value sensor noose 9 and a flow value sensor 10, the flow value sensor noose 9 is sleeved on the sliding column 8, the flow value sensor 10 is fixedly arranged on the flow value sensor noose 9, a signal output end of the flow value sensor 10 is electrically connected with the signal receiving end of the control system, the anti-sticking heat-insulating film 16 is made of polytetrafluoroethylene, and openings 17 are formed in two sides of the anti-sticking heat insulating film 16.
Working principle and method
Before the instrument works, firstly, preparing, respectively detaching an upper pressure head 13 and a lower pressure head 14, sleeving an anti-sticking heat-insulating film 16 on the upper pressure head 13 and the lower pressure head 14, then putting the upper pressure head 13 and the lower pressure head 14 into water at about 60 ℃ for water bath, taking out the upper pressure head 13 and the lower pressure head 14 after 5-10 minutes, installing the upper pressure head 13 and the lower pressure head 14 on the instrument, and putting a test piece 15 into the lower pressure head 14; when the instrument works, the screw jack 4 is controlled to rotate by the control knob 3 of the control system, the upper pressure head 13 and the lower pressure head 14 are supported by the tray 5, a stability test is carried out by ascending at a constant speed of 50mm/min, the maximum load is 40KN, the large-screen graphic liquid crystal display screen on the control panel 2 directly displays test data of a stability value and a flow value, a curve graph, a test result and test time, and after the test is finished, the lower pressure head 14 descends to an initial position along with the tray, and the test is finished.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (5)
1. The utility model provides a marshall stability test appearance, includes host computer base (1), is provided with control system in host computer base (1), and host computer base (1) tip is provided with control panel (2) and control knob (3), and host computer base (1) top is equipped with the portal frame of compriseing two stands (6) and a crossbeam (7), its characterized in that, be provided with dynamometry portion, flow value measurement portion, go up pressure head (13), lower pressure head (14) and sliding column (8) in the portal frame, go up pressure head (13) and lower pressure head (14) cup joint on sliding column (8), wherein go up pressure head (13) and lower pressure head (14) outside cover have antiseized heat preservation film (16).
2. The marshall stability tester of claim 1, wherein the force measuring part comprises a screw jack (4), a force measuring sensor (11), a suspension rod (12) and a tray (5), the screw jack (4) is arranged at the central position of the top plane of the host base (1), the tray (5) is placed at the top of the screw jack (4), the lower pressure head (14) is arranged in the tray (5), the rotation of the screw jack (4) is controlled by a control system, the top of the suspension rod (12) is welded with the cross beam (7), the bottom of the suspension rod (12) is detachably connected with the upper pressure head (13) through a quick connector, the force measuring sensor (11) is fixedly arranged in the middle of the suspension rod (12), and the signal output end of the force measuring sensor (11) is electrically connected with the signal receiving end of the control system.
3. The marshall stability tester of claim 1, wherein the flow value measuring unit comprises a flow value sensor noose (9) and a flow value sensor (10), the flow value sensor noose (9) is sleeved on the sliding column (8), the flow value sensor (10) is fixedly arranged on the flow value sensor noose (9), and a signal output end of the flow value sensor (10) is electrically connected with a signal receiving end of the control system.
4. A marshall stability tester as claimed in claim 1, wherein said anti-adhesive thermal film (16) is made of teflon.
5. A marshall stability tester as claimed in claim 1, wherein the anti-adhesive heat-insulating film (16) is provided with openings (17) on both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221292939.6U CN217901391U (en) | 2022-05-26 | 2022-05-26 | Marshall stability test appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221292939.6U CN217901391U (en) | 2022-05-26 | 2022-05-26 | Marshall stability test appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217901391U true CN217901391U (en) | 2022-11-25 |
Family
ID=84113170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221292939.6U Active CN217901391U (en) | 2022-05-26 | 2022-05-26 | Marshall stability test appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217901391U (en) |
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2022
- 2022-05-26 CN CN202221292939.6U patent/CN217901391U/en active Active
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