Flange stretching detection machine

Abstract

The utility model relates to the technical field of stretching detection, and discloses a flange stretching detection machine which comprises a base and a hydraulic tensile machine, a connecting plate is installed at the tensile end of the hydraulic tensile machine, two sets of flange clamping assemblies are arranged between the connecting plate and a mounting plate, and rotating mounting assemblies are installed on the sides, close to each other, of the connecting plate and the mounting plate respectively. The two flange clamping assemblies are rotationally installed; the flange clamping assembly comprises a positioning disc and a movable disc, multiple sets of positioning rods of different sizes are installed on the circumferential edge of one side of the positioning disc, the outer side of the other end of each positioning rod is sleeved with a nut, and the positioning disc and the movable disc are clamped on the outer side of the flange plate. Compared with the prior art, the utility model has the advantages that a plurality of groups of positioning rods with different sizes are arranged on the positioning disc, and the positioning disc and the movable disc outside the mounting shaft are rotated to adjust the positions of the positioning rods, so that the positioning rods can be conveniently inserted into the corresponding connecting holes at the two sides of the flange plate, and the flange plate is prevented from sliding out of the positioning disc and the movable disc to influence the detection result.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing technology, specifically to a flange tensile testing machine. Background Technology

[0002] Tensile testing is a testing method that measures the properties of materials under axial tensile load. It can be used to determine the elastic limit, elongation, tensile strength, yield point, yield strength and other performance indicators of materials.

[0003] Paired flange holes ensure accurate alignment of the two flange faces and allow for bolt tightening, providing better sealing and connection stability. Therefore, flange connection holes typically appear in pairs. However, existing flange clamping structures usually employ clamping plates. When using this method, if the clamping tightness is insufficient, the flange can easily slip out of the clamping plates during tensile testing, affecting tensile testing.

[0004] When clamping a flange with a clamping plate, inserting a limiting rod into the flange's connection hole can strengthen the limiting of the flange. However, since the connection hole size of flanges varies, the limiting rod cannot be replaced according to the connection hole size of the flange, which limits its use.

[0005] To address the aforementioned technical problems, this application proposes a tensile testing machine for double-eye flanges. Utility Model Content

[0006] I. Technical problems to be solved

[0007] The technical problem this invention aims to solve is that the flange connection hole sizes are different, making it impossible to replace the limit rod according to the flange connection hole size.

[0008] II. Technical Solution

[0009] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a flange tensile testing machine, including a base and a hydraulic tensile testing machine, wherein the hydraulic tensile testing machine is fixedly installed on the upper side of the base by a mounting plate;

[0010] The hydraulic tensile testing machine has a connecting plate installed at the tensile end. Two sets of flange clamping assemblies are provided between the connecting plate and the mounting plate. Rotary mounting assemblies are installed on the side of the connecting plate that is close to the mounting plate, so that the two sets of flange clamping assemblies can be rotated and installed.

[0011] The flange clamping assembly includes a positioning plate and a movable plate. Multiple sets of positioning rods of different sizes are installed on the circumferential edge of the positioning plate near the movable plate. The other end of the positioning rod passes through the movable plate and is fitted with a nut on its outer side, clamping the positioning plate and the movable plate on the outside of the flange.

[0012] As an improvement, the rotating mounting assembly includes a U-shaped mounting bracket and a mounting shaft, wherein the top of the U-shaped mounting bracket is an open structure, and the mounting shaft is installed between the two side walls of the U-shaped mounting bracket.

[0013] As an improvement, connecting blocks are installed on both sides of the bottom of the convex mounting bracket, and bolts are installed through the connecting blocks. Multiple sets of bolts pass through the connecting plates and mounting plates on the corresponding sides and are positioned with nuts. The bottom of the base is provided with a groove for the bolts to pass through.

[0014] As an improvement, the positioning disk is rotatably mounted on the outer side of one end of the mounting shaft via a bearing, and the movable disk is slidably sleeved on the outer side of the mounting shaft.

[0015] As an improvement, annular friction blocks are installed on the sides of the positioning disk and the moving disk that are close to each other.

[0016] As an improvement, a controller is installed on the upper side of the base and on the side of the hydraulic tensile testing machine.

[0017] III. Beneficial Effects

[0018] The advantages of this utility model compared with the prior art are as follows: multiple sets of positioning rods of different sizes are installed on the positioning plate, and the moving plate is provided with insertion holes of different sizes to match the positioning rods. By rotating the positioning plate and the moving plate on the outside of the mounting shaft, the position of the positioning rods can be adjusted, making it easy to insert the positioning rods into the corresponding connection holes on both sides of the flange. By moving the nuts on the outside of the positioning rods, the positioning plate and the moving plate are clamped on the outside of the flange. During tensile testing, the stability of the flange is ensured, and the flange is prevented from slipping out of the positioning plate and the moving plate, which would affect the test results. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a flange tensile testing machine according to this utility model.

[0020] Figure 2 This is a schematic diagram of the lower structure of the base of a flange tensile testing machine according to this utility model.

[0021] Figure 3 This is a schematic diagram of the rotating mounting assembly structure of a flange tensile testing machine according to this utility model.

[0022] Figure 4 This is a schematic diagram of the positioning disc side structure of the flange clamping assembly of a flange tensile testing machine according to this utility model.

[0023] Figure 5 This is a schematic diagram of the moving disc side structure of the flange clamping assembly of a flange tensile testing machine according to the present invention.

[0024] As shown in the figure: 1. Base; 2. Hydraulic tensile testing machine; 3. Controller; 4. Connecting plate; 5. Mounting plate; 6. T-shaped mounting bracket; 7. Connecting block; 8. Bolt; 9. Mounting shaft; 10. Positioning plate; 11. Bearing; 12. Moving plate; 13. Positioning rod; 14. Nut; 15. Annular friction block; 16. Groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] As attached Figure 1 As shown, a flange tensile testing machine includes a base 1 and a hydraulic tensile testing machine 2. The hydraulic tensile testing machine 2 is fixedly installed on the upper side of the base 1 by a mounting plate 5. A controller 3 is installed on the upper side of the base 1 and on one side of the hydraulic tensile testing machine 2, and the controller 3 controls the hydraulic tensile testing machine 2.

[0027] As attached Figure 1 Appendix Figure 2 Appendix Figure 4 and attached Figure 5 As shown, the hydraulic tensile testing machine 2 has a connecting plate 4 installed at the tensile end. Two sets of flange clamping assemblies are provided between the connecting plate 4 and the mounting plate 5. Rotary mounting assemblies are respectively installed on the side of the connecting plate 4 and the mounting plate 5 that are close to each other. The two sets of flange clamping assemblies are rotated and installed. The rotary mounting assembly includes a U-shaped mounting bracket 6 and a mounting shaft 9. The top of the U-shaped mounting bracket 6 is an open structure. The mounting shaft 9 is installed between the two side walls of the U-shaped mounting bracket 6. Connecting blocks 7 are respectively installed on the bottom two sides of the U-shaped mounting bracket 6. Bolts 8 are installed through the connecting blocks 7. Multiple sets of bolts 8 pass through the corresponding side of the connecting plate 4 and the mounting plate 5 and are positioned with nuts. The bottom of the base 1 is provided with a groove 16 for the bolts 8 to pass through. It is not necessary to use long bolts 8 to fix the U-shaped mounting bracket 6 on the upper side of the mounting plate 5.

[0028] As attached Figure 1 Appendix Figure 3 and attached Figure 4As shown, the flange clamping assembly includes a positioning plate 10 and a movable plate 12. The positioning plate 10 is rotatably mounted on the outer side of one end of the mounting shaft 9 via a bearing 11. The movable plate 12 is slidably sleeved on the outer side of the mounting shaft 9. Multiple sets of positioning rods 13 of different sizes are installed on the circumferential edge of the side of the positioning plate 10 close to the movable plate 12. The other end of the positioning rod 13 passes through the movable plate 12 and is fitted with a nut 14 on its outer side, clamping the positioning plate 10 and the movable plate 12 on the outside of the flange. Annular friction blocks 15 are respectively installed on the side of the positioning plate 10 and the movable plate 12 close to each other to enhance the clamping friction of the flange.

[0029] The specific usage method is as follows:

[0030] The connection holes of the double-sided flange appear in pairs and are equidistant. A suitable positioning rod 13 is selected based on the flange's connection holes. The positioning plate 10 is rotated, bringing the positioning rods 13 on both sets of positioning plates 10 closer together. By inputting the hole spacing of the flange's connection holes into the controller 3, the controller 3 controls the hydraulic tensile testing machine 2 to operate, adjusting the distance between the two sets of positioning rods 13 so that the positioning rods 13 can be inserted into the corresponding connection holes of the flange. The moving plate 12 slides outside the mounting shaft 9, inserting the positioning rods 13 into the corresponding through holes on the moving plate 12. A threaded nut 14 is fitted to the outside of the positioning rod 13. By rotating the nut 14, the moving plate 12 moves towards the positioning plate 10. The flange is clamped by the positioning plate 10 and the moving plate 12, and the flange is limited by the positioning rods 13, preventing the flange from detaching when the hydraulic tensile testing machine 2 pulls the flange for tensile testing.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A flange tensile testing machine, comprising a base (1) and a hydraulic tensile testing machine (2), wherein the hydraulic tensile testing machine (2) is fixedly mounted on the upper side of the base (1) via a mounting plate (5), characterized in that: The hydraulic tensile testing machine (2) has a connecting plate (4) installed at the tensile end. Two sets of flange clamping assemblies are provided between the connecting plate (4) and the mounting plate (5). Rotary mounting assemblies are installed on the side of the connecting plate (4) and the mounting plate (5) that are close to each other, so that the two sets of flange clamping assemblies can be rotated and installed. The flange clamping assembly includes a positioning plate (10) and a movable plate (12). Multiple positioning rods (13) of different sizes are installed on the circumferential edge of the positioning plate (10) near the movable plate (12). The other end of the positioning rod (13) passes through the movable plate (12) and is fitted with a nut (14) on its outer side, clamping the positioning plate (10) and the movable plate (12) on the outside of the flange.

2. The flange tensile testing machine according to claim 1, characterized in that: The rotating mounting assembly includes a U-shaped mounting bracket (6) and a mounting shaft (9). The top of the U-shaped mounting bracket (6) is an open structure, and the mounting shaft (9) is installed between the two side walls of the U-shaped mounting bracket (6).

3. A flange tensile testing machine according to claim 2, characterized in that: The bottom sides of the convex mounting bracket (6) are respectively equipped with connecting blocks (7), and bolts (8) are installed through the connecting blocks (7). Multiple sets of bolts (8) pass through the connecting plates (4) and mounting plates (5) on the corresponding sides and are positioned with nuts. The bottom of the base (1) is provided with a groove (16) for the bolts (8) to pass through.

4. A flange tensile testing machine according to claim 2, characterized in that: The positioning disk (10) is rotatably mounted on the outer side of one end of the mounting shaft (9) via a bearing (11), and the movable disk (12) is slidably sleeved on the outer side of the mounting shaft (9).

5. A flange tensile testing machine according to claim 1, characterized in that: The positioning disk (10) and the moving disk (12) are respectively equipped with annular friction blocks (15) on the side that are close to each other.

6. A flange tensile testing machine according to claim 1, characterized in that: A controller (3) is installed on the upper side of the base (1) and on the side of the hydraulic tensile machine (2).

Images