CN211856224U - Hopkinson-based adjusting mechanism - Google Patents
Hopkinson-based adjusting mechanism Download PDFInfo
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- CN211856224U CN211856224U CN201922476549.9U CN201922476549U CN211856224U CN 211856224 U CN211856224 U CN 211856224U CN 201922476549 U CN201922476549 U CN 201922476549U CN 211856224 U CN211856224 U CN 211856224U
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Abstract
The utility model relates to a mechanics of materials test technical field discloses an guiding mechanism based on hopkinson, guide rail, fixed adjustment subassembly and central uide bushing for the adjustment, fixed adjustment subassembly bottom is provided with the removal cooperation link block with the adjustment with the guide rail axial adjustment, and fixed adjustment subassembly top is provided with the fixed sleeving, the adjusting sleeve pipe of being connected with the removal cooperation of central uide bushing upper and lower adjustment, and fixed adjustment subassembly both sides are provided with horizontal adjustment's removal cooperation connecting bolt. The utility model discloses can carry out all-round accurate regulation, extensive applicability, each series member all can seamless butt joint use, and installation, debugging convenience, and the precision is high.
Description
Technical Field
The utility model relates to a mechanics of materials tests technical field, especially relates to an guiding mechanism based on hopkinson.
Background
Hopkinson equipment is equipment for researching the dynamic mechanical properties of materials under the condition of high strain rate loading, is mainly used for analyzing the mechanical properties of the materials under the condition of high strain rate, and is widely applied to the aspects of material mechanical analysis of various scientific research institutions and academic institutions. When the device is installed, the 3-6mm slender rod needs to be subjected to precise fine adjustment, the device error is within the range of 0-0.05 mm, the experimental result is accurate, and the accurate dynamic mechanical property of the material is obtained. Adjustment is found to be difficult and requires a great deal of installation and debugging experience during the adjustment process.
The current adjusting mechanism mainly depends on adjustment and calibration of a plurality of screws, and has great influence on adjustment manipulation and experience of an installer and the fineness of the installer, and under some conditions, because of insufficient experience or time urgency, adjustment is difficult, a large amount of time is needed for installation, adjustment, calibration and fixation at a required accurate position, and the time for debugging is generally needed to be spent for 2-5 days. Therefore, a large amount of manpower and time are wasted for the installation of the whole Hopkinson device. The accuracy of installation has directly led to the accuracy of experimental result, if there is too much deviation in adjustment mechanism's position, if the levelness is greater than 0.1mm, can cause unpredictable deviation to the experimental result. In extreme cases, the friction and damage of the rod system may be caused, the accuracy of test data acquisition is affected, and the service life of the equipment is reduced.
Disclosure of Invention
In order to solve the technical problem, the utility model discloses a technical scheme be:
a hopkinson-based adjustment mechanism comprising three major parts: the adjusting device comprises a guide rail for adjustment, a fixed adjusting assembly and a central guide sleeve, wherein the bottom of the fixed adjusting assembly is provided with a movable matching connecting slide block for axial adjustment of the guide rail for adjustment, the top of the fixed adjusting assembly is provided with a fixed sleeve and an adjusting sleeve which are matched and connected with the central guide sleeve in a vertically-adjusted movable manner, and two sides of the fixed adjusting assembly are provided with movable matching connecting bolts capable of being adjusted horizontally;
the upper part of the central guide sleeve is provided with a shaft sleeve with a slender rod, the lower part of the central guide sleeve is provided with a lead screw which penetrates through a fixed adjusting assembly fixing sleeve and an adjusting sleeve, and the end part of the lead screw is provided with a gasket and a screw.
A Hopkinson-based adjustment mechanism is provided, wherein a fixed adjustment assembly can be fixed to each used position of a Hopkinson device by a guide rail for adjustment.
Due to the adoption of the technical scheme, the utility model has the advantages that:
the utility model discloses a main objective is the axiality and the levelness that are used for quick adjustment hopkinson experimental facilities rod system to and provide accurate direction and self-tuning effect of aligning for the rod system of high-speed motion in the experimentation, the rod system should remain throughout within 0.05mm at actual motion process levelness promptly, lets experimental data accuracy more.
The utility model discloses an adjustment subassembly can realize the multidimension degree axle precision adjustment in the space, lets the precision reduce below 0.05mm, and is convenient, quick when the adjustment, and the time of installing and debugging can shorten more than 50% promptly, and the structure is simple and convenient, does not need the special maintenance in later stage. The adjusting assembly has a locking function, prevents the high-speed movement of a rod system and the micro movement of an adjusting mechanism caused by impact, and can ensure that the levelness and the concentricity are within 0.01mm even in the high-speed movement process, thereby ensuring the accuracy of an experimental result. The guide sleeve can self-adaptively adjust the position under the action of the rod system, provides a precise and stable guiding effect for the high-speed movement of the rod system, and can solve the problems of small, non-concentric, non-horizontal and other processing technologies of the rod system.
The concrete advantages are as follows:
1. the omnibearing precision adjustment can be carried out; realize quick adjustment, improve 2 times than guiding mechanism efficiency before.
2. The applicability is wide, and especially for the adjustment of the fine long rod, the rod systems phi 1-30 mm of various specifications can be used in seamless butt joint.
3. The modularized design is convenient to install, convenient to install and debug, high in precision degree, capable of greatly reducing the dependence degree on experience, capable of accurately debugging general personnel and high in stability.
Drawings
Fig. 1 is a schematic view of a hopkinson adjustment mechanism.
Fig. 2 is a cross-sectional view of the hopkinson adjustment mechanism.
Fig. 3 is a diagram of an application of the hopkinson adjusting mechanism.
Detailed Description
The following describes the present invention in further detail with reference to the drawings and examples.
As shown in fig. 1, 2, and 3, a hopkinson-based adjustment mechanism includes three major parts: the adjusting device comprises a guide rail 3 for adjustment, a fixed adjusting assembly 2 and a central guide sleeve 1, wherein the bottom of the fixed adjusting assembly 2 is provided with a movable fit connecting slide block 2.4 axially adjusted with the guide rail 3 for adjustment, the top of the fixed adjusting assembly 2 is provided with a fixed sleeve 2.2 and an adjusting sleeve 2.1 which are movably matched and connected with the central guide sleeve 1 in an up-and-down adjusting manner, and two sides of the fixed adjusting assembly 2 are provided with horizontally adjusted movable fit connecting bolts 2.3;
the upper part of the central guide sleeve 1 is provided with a shaft sleeve 1.1 of a slender rod 4, the lower part of the central guide sleeve 1 is provided with a screw rod 1.2 which penetrates through a fixed sleeve 2 and an adjusting sleeve 2.1 of a fixed adjusting assembly 2, and the end part of the screw rod 1.2 is provided with a gasket 1.4 and a screw 1.3.
The adjustment guide rail 3 can fix the fixed adjustment unit 2 at each position where the hopkinson device is used.
An adjusting method based on a Hopkinson adjusting mechanism is used for quickly adjusting the coaxiality and the levelness of a Hopkinson experimental equipment rod system and providing precise guiding and aligning self-adjusting functions for the rod system moving at high speed in an experimental process, namely the levelness of the rod system in the actual movement process is always kept within 0.05mm, so that experimental data are more accurate, and the adjusting method comprises the following steps:
1) fixing the fixed adjusting assembly 2 at each used position of the Hopkinson device through the adjusting guide rail 3; namely, the fixed adjusting component 2 is fixed on the adjusting guide rail 3 through the movable matching connecting slide block 2.4 axially adjusted by the bottom of the fixed adjusting component 2 and the adjusting guide rail 3;
2) installing a slender rod 4 on a shaft sleeve 1.1 on a central guide sleeve 1 at the top of the fixed adjusting assembly 2 to correspond to a Hopkinson device impact hole;
3) adjusting the coaxiality and levelness of the slender rod 4 corresponding to the Hopkinson experimental equipment impact hole;
the coaxiality and the levelness are adjusted by adjusting a fixed sleeve 2.2 and an adjusting sleeve 2.1 which are matched with the movement of the top of the fixed adjusting component 2 and a screw rod 1.2 of the central guide sleeve and adjusting a connecting bolt 2.3 which is matched with the movement of the horizontal adjustment at the two sides of the fixed adjusting component 2.
The fixed adjusting component 2 is used for realizing the multi-dimensional axis precision adjustment in space, so that the precision is reduced to be below 0.05 mm; the levelness and the concentricity can be ensured within 0.01mm even in the high-speed movement process, so that the accuracy of an experimental result is ensured.
Claims (2)
1. The utility model provides an adjustment mechanism based on hopkinson which characterized in that: comprises three major parts: the adjusting device comprises a guide rail (3) for adjustment, a fixed adjusting assembly (2) and a central guide sleeve (1), wherein a movable matching connecting slide block (2.4) for axial adjustment of the guide rail (3) for adjustment is arranged at the bottom of the fixed adjusting assembly (2), a fixed sleeve (2.2) and an adjusting sleeve (2.1) which are movably matched and connected with the central guide sleeve (1) in an up-and-down adjusting mode are arranged at the top of the fixed adjusting assembly (2), and movable matching connecting bolts (2.3) for horizontal adjustment are arranged on two sides of the fixed adjusting assembly (2);
the upper part of the central guide sleeve (1) is provided with a shaft sleeve (1.1) of a slender rod (4), the lower part of the central guide sleeve (1) is provided with a screw rod (1.2) which penetrates through a fixed sleeve (2.2) and an adjusting sleeve (2.1) of the fixed adjusting assembly (2), and the end part of the screw rod (1.2) is provided with a gasket (1.4) and a screw (1.3).
2. The hopkinson-based adjustment mechanism of claim 1, wherein: the adjusting guide rail (3) can fix the fixed adjusting assembly (2) at each used position of the Hopkinson device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476549.9U CN211856224U (en) | 2019-12-31 | 2019-12-31 | Hopkinson-based adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476549.9U CN211856224U (en) | 2019-12-31 | 2019-12-31 | Hopkinson-based adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211856224U true CN211856224U (en) | 2020-11-03 |
Family
ID=73209365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922476549.9U Active CN211856224U (en) | 2019-12-31 | 2019-12-31 | Hopkinson-based adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211856224U (en) |
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2019
- 2019-12-31 CN CN201922476549.9U patent/CN211856224U/en active Active
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