Clamp structure of thermal shock furnace
By setting up a sample clamping component and reinforcing baffle in the thermal shock furnace fixture, the problem of fixture deformation at high temperatures was solved, achieving stable clamping and convenient removal of the sample, thus ensuring the safety and accuracy of the test.
Patent Information
- Application Number
- CN202423026128.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing thermal shock furnace fixtures are prone to deformation in high-temperature environments, resulting in loose sample clamping, which may cause samples to fall and pose safety hazards, while also preventing normal entry into the furnace.
Three sample clamping components are installed on the top of the clamp housing and the clamp inner box. The sample is stabilized and released by the forward and reverse rotation of the clamping stud. Two reinforcing partitions are installed at the front of the clamp inner box to divide it into three equal parts, increasing the horizontal traction force.
It achieves stable clamping and convenient removal of the specimen, prevents deformation of the clamp and wear of the specimen, ensures that the specimen spacing meets the test requirements, and avoids safety hazards.
Smart Images
Figure CN223500147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary components for testing the thermal shock resistance of refractory materials, specifically to a fixture structure for a thermal shock furnace. Background Technology
[0002] When conducting thermal shock resistance tests on refractory materials, according to the specific requirements for the size and preparation of refractory material specimens in Chapter 5.3.2 of GB / T 30873-2014 "Test Method for Thermal Shock Resistance of Refractory Materials", the specimens prepared in the laboratory are generally straight bricks of 230mm×114mm×(65 / 75)mm. At the same time, according to the requirements for specimen holders in Chapter 5.2.3 of GB / T 30873-2014, they should be able to hold more than 3 specimens at the same time, and be able to adjust the depth of specimens entering the furnace and water. Moreover, the distance between specimens should not be less than 10mm, and specimens should not be stacked.
[0003] In actual tests, current fixtures are typically designed as square frames that can hold three samples side by side. When clamping the straight brick samples, they are secured by three fasteners on the top of each straight brick sample. However, because the thermal shock furnace is maintained at around 1100℃ or 950℃ for a long time during use, and the fixture moves in and out of the furnace along with the clamped straight brick samples during the test, it is also in a high-temperature state for a long time. Over time, the lateral span of the fixture becomes too large, which can easily cause deformation. This not only leads to the sample not being clamped tightly and the sample falling off, but also prevents the sample from entering the furnace normally, or even blocks the furnace door, causing a series of safety problems. Utility Model Content
[0004] The purpose of this utility model is to provide a thermal shock furnace fixture structure to solve the above-mentioned problems. Three sample clamping components for clamping and fixing the straight brick sample are combined and arranged on the top of the clamping shell and the clamping inner box. By turning the clamping stud forward with the aid of a tool, the end pressure plate can be lowered and the straight brick sample placed at the front of the clamping inner box can be clamped and fixed from the top. At the same time, by turning the clamping stud in reverse with the aid of a tool, the end pressure plate can be raised and contact the clamped state of the straight brick sample. The clamping and loosening method of the straight brick sample is simple and easy to implement, as detailed below.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] The present invention provides a clamping structure for a thermal shock furnace, comprising an inner clamping box and a outer clamping box. The inner clamping box is an open box at the front. The outer clamping box is covered by the outer clamping box. The front of the outer clamping box is open. The inner circumference of the outer clamping box and the outer circumference of the inner clamping box are fixedly connected together by filling with refractory lining.
[0007] The top of the inner box of the clamp and the outer shell of the clamp are equipped with three sample clamping assemblies, which are used to clamp three straight brick samples side by side at the front opening of the inner box of the clamp.
[0008] Two reinforcing partitions are vertically installed at the front of the inner box of the gripper, and the two reinforcing partitions divide the lateral dimension of the inner box of the gripper into three equal parts, so as to uniformly increase the traction force on the inner box of the gripper in the horizontal direction through the reinforcing partitions.
[0009] Preferably, both reinforcing partitions are vertically arranged along the longitudinal direction, and the lateral thickness of each reinforcing partition is not less than 10mm.
[0010] Preferably, the reinforcing partitions are all rectangular steel plates and are fixed to the inner box of the clamp by welding at both ends.
[0011] Preferably, each of the sample clamping components includes an insertion hole and a clamping stud. The top surface of the clamp housing has three vertically opened insertion holes, which are evenly distributed in the horizontal direction. The insertion holes pass through the refractory lining and reach the interior of the clamp inner box in the vertical direction. The clamping stud is vertically and coaxially inserted into each insertion hole in a threaded manner.
[0012] Preferably, the insertion holes are all located at the front top of the clamp housing, and the three insertion holes are respectively located at the middle of each segment after the transverse dimension of the clamp inner box is divided into three equal parts.
[0013] Preferably, each of the clamping studs has an end head fixedly connected to its top, and the top surface of each end head has an internal hexagonal force-applying groove.
[0014] Preferably, the bottom end of the clamping stud is provided with an end pressure plate, and the bottom surface of the end pressure plate is uniformly distributed with wear-resistant protrusions.
[0015] Preferably, the end plate is a round or rectangular plate, and the end plate may or may not be fixedly connected to the bottom end of the clamping stud.
[0016] Using the aforementioned thermal shock furnace fixture structure, specifically in the process of conducting thermal shock resistance tests on straight brick samples, three sample clamping components for pressing and fixing the straight brick samples are combined and installed at the top of the holder shell and the holder inner box. By using a tool to turn the clamping stud clockwise, the end pressure plate can be lowered, pressing and fixing the straight brick sample, located at the front of the holder inner box, from the top. Simultaneously, by using a tool to turn the clamping stud counterclockwise, the end pressure plate can be raised to engage the clamped state of the straight brick sample. The clamping and releasing methods for the straight brick sample are simple and easy to implement, facilitating the stable clamping of the straight brick sample at the front of the holder inner box for thermal shock resistance testing, and also facilitating the timely removal of the straight brick sample from the holder after the subsequent test. The inner box of the clamp is vertically fitted with two reinforcing partitions at the front, which divide the lateral dimension of the inner box into three equal parts. This arrangement of the two reinforcing partitions uniformly increases the horizontal traction force on the inner box, preventing outward expansion and deformation. It also reduces wear on the end plate and the straight brick sample caused by the change in direction of the clamping studs of the sample clamping assembly as the clamp housing and inner box expand outward. Furthermore, since the lateral thickness of each reinforcing partition is not less than 10mm, the arrangement of the reinforcing partitions also forces a minimum spacing of 10mm between the side-by-side straight brick samples, ensuring a more stable and consistent test spacing when the samples are placed side-by-side.
[0017] The beneficial effects are as follows: 1. The present invention has three sample clamping components for clamping and fixing the straight brick sample at the top of the clamp housing and the clamp inner box. By turning the clamping stud forward with the help of a tool, the end pressure plate can be lowered and the straight brick sample placed at the front of the clamp inner box can be clamped and fixed from the top. At the same time, by turning the clamping stud in reverse with the help of a tool, the end pressure plate can be raised and contact the clamped state of the straight brick sample. The clamping and loosening of the straight brick sample is simple and easy to implement. It is convenient to stably clamp the straight brick sample at the front of the clamp inner box for thermal shock resistance test, and it is also convenient to remove the straight brick sample from the clamp inner box in time after the subsequent test.
[0018] 2. Two reinforcing partitions are vertically installed at the front of the inner box of the clamp, and the two reinforcing partitions divide the lateral dimension of the inner box of the clamp into three equal parts. In this way, the two reinforcing partitions can evenly increase the traction force in the horizontal direction, thereby preventing the inner box of the clamp from expanding outward and deforming. It can also reduce the wear on the end plate and the straight brick sample after the clamping stud of the sample clamping assembly changes direction as the outer shell and inner box of the clamp expand outward.
[0019] 3. The transverse thickness of the reinforcing partition is not less than 10mm. By setting the reinforcing partition, the spacing between the parallel straight brick samples can be forcibly maintained at not less than 10mm, which helps to more stably ensure that the spacing of the parallel straight brick samples meets the test requirements. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is an overall isometric schematic diagram of this utility model;
[0022] Figure 2 This is a utility model Figure 1 Usage status diagram;
[0023] Figure 3 This is a utility model Figure 1 Cross-section diagram Figure 1 ;
[0024] Figure 4 This is a utility model Figure 1 Cross-section diagram Figure 2 ;
[0025] Figure 5 This is a utility model Figure 1 A frontal view diagram;
[0026] Figure 6 This is a utility model Figure 1 A left-view diagram;
[0027] Figure 7 This is a utility model Figure 1 A top-down view.
[0028] The annotations in the attached figures are explained as follows:
[0029] 1. Holder housing; 2. Refractory lining; 3. Holder inner box; 4. Sample clamping assembly; 401. End; 402. Force groove; 403. Clamping stud; 404. Through hole; 405. End pressure plate; 406. Protrusion; 5. Reinforcing partition. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0031] See Figures 1-7 As shown, this utility model provides a clamping structure for a thermal shock furnace, including an inner clamping box 3 and a outer clamping box 1. The inner clamping box 3 is an open-front box, and the outer clamping box 1 is covered by the outer clamping box 3. The front of the outer clamping box 1 is open, and the inner circumference of the outer clamping box 1 and the outer circumference of the inner clamping box 3 are fixedly connected together by filling with refractory lining 2. Three sample clamping assemblies 4 are assembled on the top of the inner clamping box 3 and the outer clamping box 1, which are used to clamp three straight brick samples side by side at the front opening of the inner clamping box 3. Specifically, each sample clamping assembly 4 includes an insertion hole 404 and a clamping stud 403. The outer clamping box 1... Three through holes 404 are vertically provided on the top surface. The three through holes 404 are evenly distributed in the horizontal direction, and each through hole 404 passes through the refractory lining 2 and reaches the interior of the inner box 3 of the clamp in the vertical direction. Each through hole 404 is vertically and coaxially inserted with a clamping stud 403 by means of threaded engagement. The purpose of this arrangement is that by turning the clamping stud 403 forward with the help of a tool, the end plate 405 can be lowered to press and fix the straight brick sample placed at the front of the inner box 3 of the clamp from the top. At the same time, by turning the clamping stud 403 in reverse with the help of a tool, the end plate 405 can be raised to contact the compressed state of the straight brick sample. The method of pressing and releasing the straight brick sample is simple and easy to implement.
[0032] See Figures 1-4 As shown, two reinforcing partitions 5 are vertically installed at the front of the inner box 3 of the clamp, and the two reinforcing partitions 5 divide the lateral dimension of the inner box 3 of the clamp into three equal parts. This is to uniformly increase the traction force on the inner box 3 of the clamp through the reinforcing partitions 5. Both reinforcing partitions 5 are vertically set along the longitudinal direction, and the lateral thickness of the reinforcing partitions 5 is not less than 10mm. The purpose of this setting is that, firstly, the setting of the two reinforcing partitions 5 can uniformly increase the traction force in the horizontal direction, thereby preventing the inner box 3 of the clamp from expanding outward and deforming. Moreover, it can reduce the wear on the end pressure plate 405 and the straight brick sample after the clamping stud 403 of the sample clamping assembly 4 changes direction as the outer shell 1 and the inner box 3 of the clamp expand outward. At the same time, since the lateral thickness of the reinforcing partitions 5 is not less than 10mm, the setting of the reinforcing partitions 5 can also forcefully maintain the spacing between the straight brick samples arranged side by side to be not less than 10mm.
[0033] See Figures 1-4 As shown, the reinforcing partition 5 and the sample clamping assembly 4 were optimized as follows: the reinforcing partition 5 is a rectangular steel plate, and its upper and lower ends are fixed to the inner box 3 of the clamp by welding, so that the reinforcing partition 5 can be stably combined in the inner box 3 of the clamp for reinforcement. It should be noted that after the reinforcing partition 5 is fixed to the inner box 3 of the clamp by welding, the weld points should be ground smooth so that the straight brick sample can be placed stably in the inner box 3 of the clamp. As for the sample clamping assembly 4, the through holes 404 are all located at the front of the top of the clamp housing 1, and the three through holes 404 are respectively located at the middle of each segment after the transverse dimension of the inner box 3 of the clamp is divided into three equal parts, so that the clamping stud 403 can apply force from the center line position as much as possible when clamping the straight brick sample. Optionally, each clamping stud 403 has an end head 401 fixedly connected to its top, and the top surface of each end head 401 has an internal hexagonal force-applying groove 402, so that force can be applied using tools such as an external hexagonal wrench to drive the clamping stud 403 to rotate in both directions. The bottom end of the clamping stud 403 is provided with an end pressure plate 405, and the bottom surface of the end pressure plate 405 is evenly distributed with wear-resistant protrusions 406. This arrangement allows for direct contact between the protrusions 406 and the top surface of the straight brick sample, ensuring contact with the top surface of the straight brick sample at as many points as possible, which helps improve the clamping stability of the straight brick sample. Further optionally, the end pressure plate 405 can be a circular or rectangular plate, and the end pressure plate 405 can be fixedly connected to or not fixedly connected to the bottom end of the clamping stud 403, so that the end pressure plate 405 has multiple design and assembly options.
[0034] With the above structure, specifically in the process of conducting thermal shock resistance tests on straight brick samples, three sample clamping components 4 for clamping and fixing the straight brick samples are combined and installed at the top of the clamp housing 1 and the clamp inner box 3. By turning the clamping stud 403 clockwise with a tool, the end plate 405 can be lowered, clamping and fixing the straight brick sample placed at the front of the clamp inner box 3 from the top. Simultaneously, by turning the clamping stud 403 counterclockwise with a tool, the end plate 405 can be raised to contact the clamped state of the straight brick sample. The clamping and loosening methods for the straight brick sample are simple and easy to implement, facilitating the stable clamping of the straight brick sample at the front of the clamp inner box 3 for thermal shock resistance testing, and also facilitating the timely removal of the straight brick sample from the clamp inner box after the subsequent test. 3. Since two reinforcing partitions 5 are vertically installed at the front of the inner box 3 of the clamp, and the two reinforcing partitions 5 divide the lateral dimension of the inner box 3 of the clamp into three equal parts, the traction force on the inner box 3 of the clamp can be increased evenly in the horizontal direction by the setting of the two reinforcing partitions 5, thereby preventing the inner box 3 of the clamp from expanding outward and deforming. It can also reduce the wear on the end plate 405 and the straight brick sample after the clamping stud 403 of the sample clamping assembly 4 changes direction as the outer shell 1 and the inner box 3 of the clamp expand outward. Furthermore, since the lateral thickness of the reinforcing partitions 5 is not less than 10mm, the setting of the reinforcing partitions 5 can also forcefully maintain the spacing between the straight brick samples placed side by side to be not less than 10mm, which is conducive to more stably ensuring that the spacing of the straight brick samples placed side by side meets the test requirements.
[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A clamping structure for a thermal shock furnace, comprising an inner clamping housing (3) and a outer clamping housing (1), characterized in that: The inner box (3) of the clamp is an open box at the front. The outer perimeter of the inner box (3) of the clamp is covered with a clamp shell (1). The front of the clamp shell (1) is open, and the inner perimeter of the clamp shell (1) and the outer perimeter of the inner box (3) of the clamp are fixedly connected together by filling with refractory lining (2). Three sample clamping assemblies (4) are installed on the top of the inner box (3) of the clamp and the outer shell (1) of the clamp, so as to clamp three straight brick samples side by side at the front opening of the inner box (3) of the clamp through the sample clamping assemblies (4). Two reinforcing partitions (5) are vertically installed at the front of the inner box (3) of the clamp, and the two reinforcing partitions (5) divide the lateral dimension of the inner box (3) of the clamp into three equal parts, so as to uniformly increase the traction force on the inner box (3) of the clamp in the horizontal direction through the reinforcing partitions (5).
2. The clamping structure for a thermal shock furnace according to claim 1, characterized in that: Both reinforcing partitions (5) are vertically arranged along the longitudinal direction, and the transverse thickness of each reinforcing partition (5) is not less than 10 mm.
3. The clamping structure for a thermal shock furnace according to claim 2, characterized in that: The reinforcing partitions (5) are all rectangular steel plates and are fixed to the inner box (3) of the clamp by welding at both ends.
4. The clamping structure for a thermal shock furnace according to claim 1, 2, or 3, characterized in that: Each of the sample clamping components (4) includes an insertion hole (404) and a clamping stud (403). The top surface of the clamp housing (1) is vertically provided with three insertion holes (404). The three insertion holes (404) are evenly distributed in the horizontal direction. The insertion holes (404) pass through the refractory lining (2) and reach the interior of the clamp inner box (3) in the vertical direction. The clamping stud (403) is vertically coaxially inserted into each insertion hole (404) in a threaded manner.
5. The clamping structure for a thermal shock furnace according to claim 4, characterized in that: The insertion holes (404) are all located at the front top of the clamp housing (1), and the three insertion holes (404) are respectively located at the middle of each segment after the transverse dimension of the clamp inner box (3) is divided into three equal parts.
6. The clamping structure for a thermal shock furnace according to claim 5, characterized in that: The top of each clamping stud (403) is fixedly provided with an end (401), and the top surface of each end (401) is provided with an internal hexagonal force groove (402).
7. A thermal shock furnace clamp structure according to claim 5 or 6, characterized in that: The bottom end of the clamping stud (403) is provided with an end pressure plate (405), and the bottom surface of the end pressure plate (405) is uniformly fixed with wear-resistant protrusions (406).
8. The clamping structure for a thermal shock furnace according to claim 7, characterized in that: The end plate (405) is a round plate or a rectangular plate, and the end plate (405) may or may not be fixedly connected to the bottom end of the clamping stud (403).