Water cooling mechanism for high-temperature vibration test

Abstract

A water cooling mechanism for a high-temperature vibration test comprises a workpiece fixing seat and a cooling mechanism main body, and the upper end face of the workpiece fixing seat is provided with threaded positioning holes arranged in a circumferential array; a cooling groove is formed in the top of the cooling mechanism body, a groove opening in the upper end of the cooling groove is sealed through the bottom end face of the workpiece fixing base, the lower portion of the cooling groove communicates with a water inlet cavity and a water return cavity to form cooling circulation, and the cross section of the water inlet cavity is smaller than that of the water return cavity. A mounting seat is arranged at the lower end of the cooling mechanism body and provided with mounting holes, a water inlet and a water outlet are formed in the two sides of the mounting seat respectively, the water inlet is communicated with the lower end of the water inlet cavity, and the water outlet is communicated with the bottom of the water return cavity. The cooling grooves are additionally arranged at the upper ends of the water inlet cavity and the water return cavity for buffering, the cooling groove sections are used for cooling workpieces, and the cooling effect is improved; the cross section of the water inlet cavity is reduced to increase the water inlet velocity of the water inlet cavity; an auxiliary water tank is arranged at the bottom of the mechanism and used for collecting sediments, preventing pipeline blockage and increasing water flow impact force in the water inlet cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration testing, in particular to a water cooling mechanism used for high-temperature vibration testing. Background Art

[0002] Under the dual effects of high temperature and vibration load, the fatigue life of the material will be greatly shortened, and fatigue failure is sudden. For workpieces operating at high temperatures, the fatigue limit obtained by normal temperature vibration fatigue test is very different from the fatigue limit at actual working temperature. It is necessary to conduct a vibration test in a high temperature environment to test it.

[0003] Due to technical limitations, the current main method for testing is to immerse the test workpiece deep into a heating furnace. As the thermal conductivity increases with the test time, the temperature of the workpiece will continue to increase until it exceeds the preset value, affecting the accuracy of the test results. In traditional water-cooling devices, the continuous vibration of the vibration table will cause the cooling water to repeatedly reflux in the water cavity, causing the cooling effect of the water-cooling device to decrease over time.

[0004] Therefore, in view of the deficiencies in the prior art, the utility model discloses a water cooling mechanism for high temperature vibration testing to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solution of the utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the utility model. Utility Model Content

[0006] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the utility model is to disclose a water cooling mechanism for high-temperature vibration testing, by adding cooling grooves on the top of the water inlet chamber and the water return chamber, while reducing the cross-section of the water inlet chamber, thereby reducing the pressure on the water inlet chamber during vibration, so that cold water can be stably input into the cooling groove.

[0007] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a water cooling mechanism for high temperature vibration test, including a workpiece fixing seat and a cooling mechanism body, wherein:

[0008] The upper end surface of the workpiece fixing seat is provided with threaded positioning holes arranged in a circumferential array, and the threaded positioning holes cooperate with bolts to fix the workpiece on the workpiece fixing seat.

[0009] A cooling groove is provided on the top of the cooling mechanism body, and the groove at the upper end of the cooling groove is sealed by the bottom end face of the workpiece fixing seat. The lower part of the cooling groove is connected to the water inlet chamber and the water return chamber to form a cooling cycle, and the cross-section of the water inlet chamber is smaller than the cross-section of the water return chamber; a mounting seat is provided at the lower end of the cooling mechanism body, and a plurality of evenly arranged mounting holes are provided on the mounting seat. The mounting holes are used in conjunction with bolts to connect the cooling mechanism body to the vibration table. Water inlets and water outlets are provided on both sides of the mounting seat, respectively. The water inlet is connected to the lower end of the water inlet chamber, and the water outlet is connected to the bottom of the water return chamber.

[0010] The preferred technical solution is: a secondary water tank is provided at the bottom of the cooling mechanism body, the groove at the lower end of the secondary water tank is sealed by a seal, the top of the secondary water tank is connected to the bottom of the water inlet chamber, the sediment in the water channel is collected to avoid blockage of the water channel, and at the same time, during the vibration process, the water in the secondary water tank will convert the vibration energy into thrust to promote the flow of water in the water inlet chamber due to continuous vibration.

[0011] The preferred technical solution is: there is still a sealing positioning groove at the lower end of the auxiliary water tank, the cross section of the sealing positioning groove is larger than the cross section of the auxiliary water tank, and the seal is arranged in the sealing positioning groove to increase the sealing effect of the seal.

[0012] The preferred technical solution is that the seal and the lower end notch of the seal positioning groove are sealed and connected by welding to increase the connection strength.

[0013] The preferred technical solution is that the thickness of the seal is consistent with the depth of the seal positioning groove, so as to avoid the seal interfering with the connection between the cooling mechanism body and the vibration table, and prevent it from falling off by fitting with the vibration table surface.

[0014] The preferred technical solution is that the bottom of the workpiece fixing seat and the notch at the upper end of the cooling groove are sealed and connected by welding to increase the connection strength.

[0015] The preferred technical solution is: the inner wall of the water return chamber is coated with a heat-insulating coating to prevent the heat of the water return chamber from being transferred to the water inlet chamber.

[0016] Due to the application of the above technical solution, the water cooling mechanism for high temperature vibration test of the utility model has the following advantages:

[0017] (1) A cooling groove is added at the upper end of the water inlet chamber and the water return chamber as a buffer, and the cooling groove section is used to cool the workpiece. The cold water input into the water inlet chamber will directly impact the end face of the cooling groove under vibration, thereby improving the cooling effect.

[0018] (2) Reduce the cross-section of the water inlet chamber, increase the water flow rate into the water inlet chamber, and reduce the impact of vibration on the water flow direction.

[0019] (3) A secondary water tank is provided at the bottom of the mechanism to collect sediments to prevent pipe blockage, increase the impact force of water flow into the water chamber, and improve the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a water cooling mechanism for high temperature vibration testing of the utility model;

[0021] Figure 2 It is a side view of a water cooling mechanism for high temperature vibration test of the utility model;

[0022] Figure 3 for Figure 2 A cross-sectional view taken along line AA.

[0023] In the above drawings, 1, workpiece fixing seat; 11, threaded positioning hole; 2, cooling mechanism body; 21, cooling groove; 22, water inlet chamber; 23, water return chamber; 24, mounting seat; 24a, mounting hole; 24b, water inlet; 24c, water outlet; 25, auxiliary water tank; 26, sealing member positioning groove; 3, sealing member. DETAILED DESCRIPTION

[0024] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0025] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] like Figure 1 As shown, the utility model discloses a water cooling mechanism for high temperature vibration test, including a workpiece fixing seat 1, a cooling mechanism body 2 and a sealing member 3. The main components of the utility model are described in detail below:

[0027] like Figure 1 and Figure 3 As shown, the upper end surface of the workpiece fixing seat 1 is provided with threaded positioning holes 11 arranged in a circular array.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, a cooling groove 21 is provided on the top of the cooling mechanism main body 2, and the upper end groove of the cooling groove 21 is sealed and connected by welding through the bottom end face of the workpiece fixing seat 1, and the lower part of the cooling groove 21 is connected to the water inlet chamber 22 and the water return chamber 23 to form a cooling cycle. The cross-section of the water inlet chamber 22 is smaller than the cross-section of the water return chamber 23, and the inner wall of the water return chamber 23 is coated with a heat-insulating coating; a mounting seat 24 is provided at the lower end of the cooling mechanism main body 2, and a plurality of evenly arranged mounting holes 24a are provided on the mounting seat 24, and a water inlet 24b and a water outlet 24c are respectively provided on both sides of the mounting seat 24, the water inlet 24b is connected with the lower end of the water inlet chamber 22, and the water outlet 24c is connected with the bottom of the water return chamber 23.

[0029] like Figure 1 and Figure 3 As shown, a secondary water tank 25 is provided at the bottom of the cooling mechanism body 2, and a sealing positioning groove 26 is provided at the lower end of the secondary water tank 25. The cross-section of the sealing positioning groove 26 is larger than the cross-section of the secondary water tank 25. The seal 3 is arranged in the sealing positioning groove 26. The thickness of the seal 3 is consistent with the depth of the sealing positioning groove 26. The groove at the lower end of the secondary water tank 25 is sealed and connected by welding with the seal 3, and the top of the secondary water tank 25 is connected to the bottom of the water inlet cavity 22.

[0030] refer to Figure 1 , Figure 2 and Figure 3 As shown, when in use, the mounting hole 24a cooperates with the bolt to connect the cooling mechanism body 2 to the vibration table, the threaded positioning hole 11 cooperates with the bolt to fix the workpiece on the workpiece fixing seat 1, and the water inlet 24b and the water outlet 24c are connected to the external water pipe respectively, and the heating furnace and the vibration table are turned on for testing. In the test, the cold water entering from the water inlet 24b passes through the water inlet chamber 22, the cooling trough 21, and the return water chamber 23 in turn and finally flows out from the water outlet 24c. In this process, since the cross-section of the water inlet chamber 22 is relatively reduced, the water flow velocity therein is increased, which increases the impact force of the water flow and is not easily changed in flow direction by vibration. The incoming water flow can directly impact the workpiece fixing seat 1 at the upper end of the cooling trough 21 to cool it.

[0031] In summary, the utility model is a water-cooling mechanism for high-temperature vibration testing, in which a cooling groove is designed as a buffer chamber for a water inlet chamber and a water return chamber, and a cooling groove section is used to cool the workpiece. The cold water input into the water inlet chamber will directly impact the end face of the cooling groove under vibration, thereby improving the cooling effect; a small cross-section water inlet chamber is designed to increase the water inlet flow rate into the water inlet chamber and reduce the influence of vibration on the water inlet flow direction; an auxiliary water trough is added at the bottom of the mechanism to collect sediments to prevent pipeline blockage, and to increase the impact force of the water flow in the water inlet chamber, thereby reducing the influence of vibration on the water flow direction of the water inlet, so that the cold water can fully exchange heat with the workpiece fixing seat and improve the cooling effect.

[0032] The above embodiment provided by the utility model is only an example of the principle and effect of the utility model, and is not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiment without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A water cooling mechanism for high temperature vibration testing, characterized in that: It comprises a workpiece fixing seat (1) and a cooling mechanism main body (2), wherein: The upper end surface of the workpiece fixing seat (1) is provided with threaded positioning holes (11) arranged in a circumferential array, and the threaded positioning holes (11) cooperate with bolts to fix the workpiece on the workpiece fixing seat (1); A cooling groove (21) is provided at the top of the cooling mechanism body (2), the upper end notch of the cooling groove (21) is sealed by the bottom end surface of the workpiece fixing seat (1), and the lower part of the cooling groove (21) is connected to a water inlet chamber (22) and a water return chamber (23) to form a cooling cycle, and the cross section of the water inlet chamber (22) is smaller than the cross section of the water return chamber (23); a mounting seat (24) is provided at the lower end of the cooling mechanism body (2), and a plurality of evenly arranged mounting holes (24a) are provided on the mounting seat (24), and the mounting holes (24a) are used in conjunction with bolts to connect the cooling mechanism body (2) to the vibration table, and a water inlet (24b) and a water outlet (24c) are provided on both sides of the mounting seat (24), respectively, and the water inlet (24b) is connected to the lower end of the water inlet chamber (22), and the water outlet (24c) is connected to the bottom of the water return chamber (23).

2. A water cooling mechanism for high temperature vibration test according to claim 1, characterized in that: A secondary water tank (25) is provided at the bottom of the cooling mechanism body (2); a notch at the lower end of the secondary water tank (25) is sealed by a sealing member (3); and a top of the secondary water tank (25) is connected to the bottom of the water inlet cavity (22).

3. A water cooling mechanism for high temperature vibration test according to claim 2, characterized in that: A sealing member positioning groove (26) is provided at the lower end of the auxiliary water tank (25); the cross section of the sealing member positioning groove (26) is larger than the cross section of the auxiliary water tank (25); and the sealing member (3) is arranged in the sealing member positioning groove (26).

4. The water cooling mechanism for high temperature vibration test according to claim 3, characterized in that: The sealing member (3) and the lower end notch of the sealing member positioning groove (26) are sealed and connected by welding.

5. The water cooling mechanism for high temperature vibration test according to claim 3, characterized in that: The thickness of the sealing member (3) is consistent with the depth of the sealing member positioning groove (26).

6. The water cooling mechanism for high temperature vibration test according to claim 1, characterized in that: The bottom of the workpiece fixing seat (1) and the upper notch of the cooling groove (21) are sealed and connected by welding.

7. The water cooling mechanism for high temperature vibration test according to claim 1, characterized in that: The inner wall of the water return chamber (23) is coated with heat-insulating paint.

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