CN215953193U - Universal high-temperature stretching clamp capable of controlling cooling speed - Google Patents
Universal high-temperature stretching clamp capable of controlling cooling speed Download PDFInfo
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- CN215953193U CN215953193U CN202122285873.XU CN202122285873U CN215953193U CN 215953193 U CN215953193 U CN 215953193U CN 202122285873 U CN202122285873 U CN 202122285873U CN 215953193 U CN215953193 U CN 215953193U
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Abstract
The utility model relates to the technical field of mechanical test devices and tests, and particularly discloses a universal high-temperature tensile clamp capable of controlling cooling speed, which comprises oppositely arranged connecting chucks, wherein cooling chuck parts are arranged on one opposite sides of the two connecting chucks, and opposite end surfaces of the cooling chuck parts are provided with sample screw interfaces which are opposite; and a water inlet pipe and a water outlet pipe which are communicated with the cooling channel are connected outside each cooling chuck part. The cooling device can be matched with test equipment such as a stretcher, a creep machine or a fatigue machine, can accurately control the cooling rate of a test sample, solves the common problem in the field of mechanical test, can be simultaneously applied to the sample cooling control of performance tests such as high-temperature stretching, high-temperature creep, high-temperature fatigue and the like, and greatly saves the material cost.
Description
Technical Field
The utility model relates to the technical field of mechanical test devices and tests, in particular to a universal high-temperature tensile clamp capable of controlling cooling speed.
Background
During the research of materials, the mechanical properties of materials are one of the core problems of interest to all researchers. Among them, in the industrial fields of aviation, aerospace, automobiles, etc., the tensile, creep and fatigue properties (especially the corresponding high-temperature properties) of a material are the most important indexes for judging whether a certain material and a part are qualified or not. Therefore, the development of the industrial field in China is greatly promoted by the innovative breakthrough of mechanical property testing equipment and technical means.
However, the existing technical means has a common problem in measuring the high-temperature tensile, creep and fatigue properties of the material, and after a test sample is heated, the subsequent cooling rate cannot be effectively controlled, so that extensive research and analysis of mechanical properties of the material by scientific researchers are greatly limited.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a universal high-temperature stretching clamp capable of controlling the cooling speed, which can accurately and effectively control the cooling speed of a test sample after high-temperature test.
The technical scheme adopted by the utility model is as follows: a universal high-temperature stretching clamp capable of controlling cooling speed comprises connecting chucks which are oppositely arranged, wherein a cooling chuck part is arranged on one side opposite to the two connecting chucks, sample screw interfaces which are opposite to each other are arranged on the opposite end faces of the two cooling chuck parts, and a cooling channel which is arranged around the sample screw interfaces and extends along the axial direction of the cooling chuck part is also arranged in the cooling chuck part; and a water inlet pipe and a water outlet pipe which are communicated with the cooling channel are connected outside the cooling chuck part.
The technical scheme can be matched with testing equipment such as a stretcher, a creep machine or a fatigue machine, and can be connected with the testing equipment through the connecting chuck when in use, two ends of a test sample to be detected can be fixedly connected with a sample screw interface of the end face of the corresponding cooling chuck part, and the test sample is subjected to tests such as stretching or compression at a certain temperature; carry the cooling water in to cooling channel through inlet tube and outlet pipe, realized the accurate control to sample cooling rate at cooling process through the control velocity of flow, solved the commonality difficult problem in the mechanical testing field, can use the sample cooling control of performance tests such as high temperature tensile, high temperature creep, high temperature fatigue simultaneously, very big material saving cost.
Further, a sealing plate capable of sealing the cooling channel is fixed on one side of the connecting chuck connected with the cooling chuck part.
Further, the outer side of the sample screw joint opening is also provided with a sealing thread lock catch capable of being in screw joint with the test sample, and the sealing thread lock catch is abutted to the surface of the cooling chuck part.
Further, one end of the connecting chuck, which is far away from the cooling chuck part, is provided with a connecting part.
Further, the water inlet pipe and the water outlet pipe are arranged in a staggered mode on the horizontal plane.
Further, the axes of the connecting clamp, the cooling clamp head, the sample screw port and the cooling channel are coincident.
Further, the cooling channel outer diameter is greater than the outer diameter of the connecting collet.
The utility model has the beneficial effects that:
1. the device can accurately control the cooling rate of the heated sample in the cooling process.
2. The device successfully solves the common problem in the field of mechanical testing, can be applied to the cooling control of samples for performance tests such as high-temperature stretching, high-temperature creep, high-temperature fatigue and the like, and greatly saves the material cost.
3. The device can realize the sample cooling control in the tension-compression, tension-tension and compression-compression fatigue tests of the sample.
Drawings
In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a structural diagram of a general high-temperature stretching clamp capable of controlling a cooling rate according to an embodiment of the present invention.
Reference numerals: the connection clamp 100, the connection part 110, the cooling clamp head part 200, the sample screw interface 210, the cooling channel 220, the water inlet pipe 300, the water outlet pipe 400, the sealing plate 500 and the sealing thread lock catch 600.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.
As shown in fig. 1, an embodiment of the present invention provides a general high-temperature tensile fixture capable of controlling a cooling rate, which includes oppositely disposed connecting chucks 100, cooling chuck portions 200 disposed on opposite sides of the two connecting chucks 100, sample screw interfaces 210 disposed on opposite end faces of the two cooling chuck portions 200, and a cooling channel 220 disposed around the sample screw interfaces 210 and extending axially along the cooling chuck portions 200; the cooling jaw portion 200 is externally connected with a water inlet pipe 300 and a water outlet pipe 400 communicated with the cooling channel.
As shown in fig. 1, the general-purpose high-temperature tensile jig provided in this embodiment can be used in combination with a test apparatus such as a stretcher, a creep machine, or a fatigue machine. Can be connected with test equipment through connecting chuck 100 when using, the test sample both ends that wait to detect can be with the sample spiral shell interface 210 fixed connection of a corresponding cooling chuck portion 200 terminal surface, and the spiro union installation back is accomplished with sample spiral shell interface 210 to test sample tip, and cooling channel 220 encircles in the test sample outside, ensures that the cooling water is to the accurate cooling of test sample in the cooling process. After the test sample is subjected to tests such as stretching or compression at a certain temperature; the cooling water is conveyed into the cooling channel 220 through the water inlet pipe 300 and the water outlet pipe 400, the cooling rate of the sample in the cooling process is accurately controlled by accurately controlling the flow rate, and the material cost is greatly saved.
As shown in fig. 1, in order to ensure complete sealing of the cooling passage 220, a sealing plate 500 capable of sealing the cooling passage 220 is fixed to the connection clip 100 on the side where the cooling clip head 200 is connected. The sealing plate 500 is preferably fixed to the cooling jaw portion 200 by welding, which can effectively improve the sealing effect of the water cooling passage 220. In addition, in the embodiment, the sample screw interface 210 is further provided with a sealing thread lock catch 600 capable of being screwed with the test sample, and the sealing thread lock catch 600 abuts against the surface of the cooling clamp head part 200. Like this, after test sample and sample screwed interface 210 are fixed, sealed screw thread hasp 600 can connect on test sample soon, and sealed screw thread hasp 600 can further improve sealed effect with cooling chuck portion 200 surperficial counterbalance, avoids the cooling water to ooze.
As mentioned above, the connecting clamp 100 needs to be connected to a testing device such as a stretcher, a creep machine or a fatigue machine, and the connecting portion 110 is disposed at an end of the connecting clamp 100 away from the cooling clamp head portion 200; the connection part 110 is connected to a test device to ensure the stability of the connection.
As shown in fig. 1, in order to improve the cooling efficiency of the test sample, the water inlet pipes 300 and the water outlet pipes 400 in the present embodiment are arranged alternately in a horizontal plane. The water inlet pipe 300 and the water outlet pipe 400 are arranged in a staggered manner to realize the circulating flow of cooling water in the cooling channel 220, so that the cooling efficiency is improved.
As shown in fig. 1, the axes of the respective connecting clamp 100, cooling clamp 200, cooling channel 220 and sample screw interface 210 in this embodiment coincide to ensure that the test sample is uniformly stressed during the test. In addition, the outer diameter of the cooling channel 220 in this embodiment is larger than the outer diameter of the connection clamp 100, so as to ensure the firmness of the connection between the cooling clamp 200 and the test sample and avoid the deformation and damage of the cooling clamp 200 during the stretching and compressing process of the clamp.
As shown in FIG. 1, in the production application, because the fixture needs to be provided with a test sample for high temperature test, the whole device is in a heating furnace, and therefore, the material of the whole device is selected from high temperature resistant nickel-based single crystal high temperature alloy; in addition, the water inlet pipe 300 and the water outlet pipe 400 need to extend out of the heating furnace and then be connected with a water cooler through copper pipes.
In the specific implementation, as shown in fig. 1, the device is connected to a stretcher, a creep machine or a fatigue machine through a connection part 110, and after the water inlet pipe 300 and the water outlet pipe 400 are connected to a water cooling machine, a sample test sample is installed between two cooling clamp heads 200 through a sample screw interface 210. Before the test, a temperature thermocouple is tied on the surface of the test sample, the furnace door of the heating furnace is closed, and the temperature starts to rise. And (5) preserving the heat of the furnace after the temperature reaches the target temperature. At the moment, the upper joint and the lower joint of the testing machine are adjusted to perform stretching or compressing motion in a specified direction, and corresponding tensile force and pressure can be transmitted to the sample through threads, so that the performance test of the corresponding test sample is realized. When the test is finished and the test sample is cooled, the water cooling machine connected with the device is started, and the pressure of the water cooling machine is adjusted, so that the flow rate of the cooling water of the circulating cooling water can be controlled to circularly flow in the cooling channel 220 through the water inlet pipe 300 and the water outlet pipe 400, the accurate control of the cooling rate of the sample in the cooling process is realized, and the test is finished until the sample is cooled to the room temperature; and opening the furnace door, and taking out the test sample to perform the next sample test.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (7)
1. A general high-temperature stretching clamp capable of controlling cooling speed is characterized in that;
the device comprises connecting chucks (100) which are oppositely arranged, wherein cooling chuck parts (200) are arranged on the opposite sides of the two connecting chucks (100), sample screw interfaces (210) which are opposite to each other are arranged on the opposite end faces of the two cooling chuck parts (200), and a cooling channel (220) which is arranged around the sample screw interfaces (210) and axially extends along the cooling chuck parts (200) is also arranged in each cooling chuck part (200);
the cooling chuck part (200) is externally connected with a water inlet pipe (300) and a water outlet pipe (400) which are communicated with the cooling channel (220).
2. A universal high temperature drawing fixture of controllable cooling rate according to claim 1, wherein; and a sealing plate (500) capable of sealing the cooling channel (220) is fixed on one side of the connecting clamp (100) connected with the cooling clamp head part (200).
3. A universal high temperature drawing fixture of controllable cooling rate according to claim 1, wherein; the outer side of the sample screw interface (210) is also provided with a sealing thread lock catch (600) capable of being in threaded connection with a test sample, and the sealing thread lock catch (600) is abutted to the surface of the cooling clamp head part (200).
4. A universal high temperature drawing fixture of controllable cooling rate according to claim 1, wherein; and a connecting part (110) is arranged at one end of the connecting chuck (100) far away from the cooling chuck part (200).
5. A universal high temperature drawing fixture of controllable cooling rate according to claim 1, wherein; the water inlet pipes (300) and the water outlet pipes (400) are arranged in a staggered mode on the horizontal plane.
6. A universal high temperature drawing fixture of controllable cooling rate according to claim 1, wherein; the axes of the connecting clamp (100), the cooling clamp head part (200), the sample screw interface (210) and the cooling channel (220) are coincident.
7. A universal high temperature drawing fixture of controllable cooling rate according to claim 1, wherein; the cooling channel (220) has an outer diameter greater than an outer diameter of the connecting clamp (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122285873.XU CN215953193U (en) | 2021-09-22 | 2021-09-22 | Universal high-temperature stretching clamp capable of controlling cooling speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122285873.XU CN215953193U (en) | 2021-09-22 | 2021-09-22 | Universal high-temperature stretching clamp capable of controlling cooling speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215953193U true CN215953193U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122285873.XU Active CN215953193U (en) | 2021-09-22 | 2021-09-22 | Universal high-temperature stretching clamp capable of controlling cooling speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215953193U (en) |
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2021
- 2021-09-22 CN CN202122285873.XU patent/CN215953193U/en active Active
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