Tensile test device for sealing ring

Abstract

The utility model provides a tensile test device for a sealing ring, which comprises a bearing base, four supporting columns are uniformly mounted above the bearing base, a top plate is mounted at the tops of the four supporting columns, four supporting legs are uniformly mounted at the bottom of the bearing base, a limiting rod is mounted at the bottom of the top plate, and a clamping groove is formed in the bottom of the limiting rod. A double-acting air cylinder is installed at the bottom of the limiting rod, fixing plates are installed at the output ends of the two sides of the double-acting air cylinder correspondingly, a protection mechanism is installed on the outer side of the double-acting air cylinder, a storage barrel is installed above the bearing base, a sealing ring body is installed in the storage barrel, and touch pieces are installed on the two sides of the double-acting air cylinder. Compared with the prior art, the sealing ring testing device has the advantages that the situation that a broken sealing ring flies around in the testing process is reduced, and the safety of the sealing ring in the testing process is improved.

Description

Technical Field

[0001] The utility model relates to a tensile testing device for a sealing ring, belonging to the field of sealing ring testing. Background Art

[0002] The sealing ring is a component used to prevent the leakage of liquid or gas inside the machine and to prevent the intrusion of external impurities and dust. It is crucial to maintain the normal operation of mechanical parts. When the sealing ring is mass-produced, the process requires a tensile testing machine to perform a tensile test on the sealing ring to determine whether the sealing ring is broken under the action of tension and whether it meets the process standards. In the existing technology, when measuring the tensile strength of the sealing ring, a double-acting cylinder is usually used to synchronously drive two fixed plates to move to both sides, so as to perform a tensile test operation on the sealing ring mounted on the fixed plate. However, during the test, the unqualified sealing ring is easily broken by the tension generated when the fixed plate moves to both sides during the stretching process. Because the sealing ring is mostly made of rubber, the stretched sealing ring will rebound after breaking. Under the dual action of tension and rebound force, the broken sealing ring will fly around the test bench, thereby increasing the safety risk during the test process. Therefore, it is necessary to design a tensile testing device for the sealing ring that can reduce the flying of the broken sealing ring. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a tensile testing device for a sealing ring to solve the problems raised in the above-mentioned background technology. The present invention reduces the flying of broken sealing rings during the test and improves the safety during the sealing ring test.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a tensile testing device for a sealing ring, comprising a supporting base, four supporting columns are evenly installed on the top of the supporting base, a top plate is installed on the top of the four supporting columns, four supporting feet are evenly installed on the bottom of the supporting base, a limiting rod is installed at the bottom of the top plate, a double-acting cylinder is installed at the bottom of the limiting rod, fixed plates are installed at the output ends on both sides of the double-acting cylinder, a protective mechanism is installed on the outside of the double-acting cylinder, a storage cylinder is installed above the supporting base, a sealing ring body is installed inside the storage cylinder, touch parts are installed on both sides of the double-acting cylinder, and fixing rings are installed on both sides of the double-acting cylinder.

[0005] Furthermore, a supporting base is installed inside the storage tube, the diameter of the supporting base is the same as the inner diameter of the storage tube, an electric push rod is installed at the bottom of the supporting base, the electric push rod is located in the middle of the four supporting legs, the output end of the electric push rod is installed with a supporting base, a plurality of sealing ring bodies are placed above the supporting base, and the two fixing plates are inserted in the middle of the sealing ring body.

[0006] Furthermore, the touch member includes a connecting plate, and the two connecting plates are respectively installed on the two output ends of the double-acting cylinder, and a fixing plate is installed on the side of the two connecting plates close to each other, and a limit switch is installed on the side of the connecting plate away from the fixing plate. The fixing ring is located on the side of the connecting plate away from the fixing plate, and a touch rod is installed on the side of the fixing ring close to the connecting plate, and the positions of the limit switch and the touch rod correspond to each other.

[0007] Furthermore, the protective mechanism includes mounting columns, two of which are respectively mounted on the front and rear sides of the double-acting cylinder, and a front back plate and a rear back plate are respectively mounted on the ends of the two mounting columns away from the double-acting cylinder, and fixing rings are mounted at both ends of the rear back plate and the front back plate.

[0008] Furthermore, an adjustment handle is installed on the front side of the front back plate, a movable groove is opened in the middle of the front back plate, one end of the adjustment handle is inserted in the movable groove, and a main gear is installed on the end of the adjustment handle inserted in the movable groove. A bidirectional screw rod is installed in the middle of the front back plate, and a slave gear is installed at a section of the bidirectional screw rod located in the movable groove. The main gear and the slave gear are engaged with each other, and threaded sleeves are installed at both ends of the bidirectional screw rod, and the threaded sleeves are inserted in the front back plate, and the other ends of the two threaded sleeves are respectively installed on two fixing rings.

[0009] Furthermore, a guide rod is installed inside the back panel, and sleeves are provided at both ends of the guide rod. Limit plates are installed at one end of the two sleeves located inside the back panel, and the outer wall of the limit plate fits with the inner wall of the back panel. The other ends of the two sleeves are respectively installed on two fixing rings.

[0010] The beneficial effects of the present invention are as follows: the present invention provides a tensile testing device for a sealing ring, which drives the main gear to rotate by rotating the adjusting handle, and the main gear drives the slave gear to rotate while driving the bidirectional screw to rotate, thereby driving the threaded sleeves installed at both ends of the bidirectional screw to move to both sides respectively, thereby adjusting the position of the fixing ring, so that the two fixing rings and the front back plate, the rear back plate, the threaded sleeve and the sleeve are respectively covered around the tensile test range of the sealing ring body, which is convenient for adjusting the protection range according to the tensile force range that needs to be tested for different sealing ring bodies, reducing the situation where unqualified sealing ring bodies fly around during the tensile test process, and improving the safety of the sealing ring body during the tensile test process.

[0011] Through the cooperation of the guide rod and sleeve installed inside the back plate, the bidirectional screw can drive the fixed ring to adjust its position synchronously to both sides while limiting the moving direction of the fixed ring, so that the supporting force at both ends of the fixed ring is the same, thereby improving the stability of the fixed ring during adjustment.

[0012] The supporting base plate is driven to move upward by the electric push rod, thereby pushing the sealing ring body to be tested stored in the storage tube outward, so that the sealing ring body reaches both sides of the fixed plate, so that the double-acting cylinder can move to both sides while driving the sealing ring body to stretch to both sides, reducing the need to manually put the sealing ring body on the fixed plate and improving the detection efficiency of the tensile test of the sealing ring body.

[0013] The double-acting cylinder drives the connecting plate to move the fixed plate to both sides to stretch the sealing ring body. At the same time, when the sealing ring body is stretched to a suitable test range, the travel switch installed on one side of the connecting plate will contact the touch rod installed on one side of the fixed ring, thereby closing the travel switch and stopping the double-acting cylinder from continuing to stretch the sealing ring body to both sides, thereby reducing the situation of sealing ring breakage caused by excessive stretching of the sealing ring body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of a tensile testing device for a sealing ring according to the present invention;

[0016] Figure 2 This is a front view of a supporting base in a tensile testing device for a sealing ring according to the present invention;

[0017] Figure 3 This is an enlarged view of A in a tensile testing device for a sealing ring of the present invention;

[0018] Figure 4 This is a schematic diagram of the overall structure of the front and back plates in a tensile testing device for a sealing ring according to the present invention;

[0019] Figure 5 This is an enlarged view of B in a tensile testing device for a sealing ring of the present invention;

[0020] In the figure: 1. Support base; 2. Support column; 3. Top plate; 4. Storage tube; 5. Double-acting cylinder; 6. Support foot; 7. Limit rod; 8. Connecting plate; 9. Fixed plate; 10. Support bottom plate; 11. Mounting column; 12. Electric push rod; 13. Sealing ring body; 14. Back plate; 15. Front back plate; 16. Threaded sleeve; 17. Sleeve; 18. Guide rod; 19. Limit plate; 20. Bidirectional screw; 21. Adjustment handle; 22. Travel switch; 23. Touch rod; 24. Movable slot; 25. Slave gear; 26. Main gear; 27. Fixed ring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution: a tensile test device for a sealing ring, comprising a supporting base 1, four supporting columns 2 are evenly installed above the supporting base 1, a top plate 3 is installed on the top of the four supporting columns 2, four supporting feet 6 are evenly installed at the bottom of the supporting base 1, a limiting rod 7 is installed at the bottom of the top plate 3, a double-acting cylinder 5 is installed at the bottom of the limiting rod 7, fixed plates 9 are installed at the output ends of both sides of the double-acting cylinder 5, a protective mechanism is installed on the outside of the double-acting cylinder 5, a storage tube 4 is installed above the supporting base 1, a sealing ring body 13 is installed inside the storage tube 4, touch pieces are installed on both sides of the double-acting cylinder 5, and fixing rings 27 are installed on both sides of the double-acting cylinder 5. A supporting base plate 10 is installed inside the tube 4. The diameter of the supporting base plate 10 is the same as the inner diameter of the storage tube 4. An electric push rod 12 is installed at the bottom of the supporting base 1. The electric push rod 12 is located in the middle of the four supporting feet 6. The output end of the electric push rod 12 is installed with the supporting base plate 10. A plurality of sealing ring bodies 13 are placed above the supporting base plate 10. Two fixed plates 9 are inserted in the middle of the sealing ring body 13. The supporting base plate 10 is pushed upward by the set electric push rod 12, so that the supporting base plate 10 drives the sealing ring body 13 to move out from the inside of the storage tube 4, which facilitates the insertion of the two fixed plates 9 into the middle of the sealing ring body 13, reducing the operation steps of putting the sealing ring body 13 on the fixed plate 9.

[0023] See also Figure 2 and Figure 3 The touch member includes a connecting plate 8, and the two connecting plates 8 are respectively installed on the two output ends of the double-acting cylinder 5. A fixing plate 9 is installed on the side of the two connecting plates 8 close to each other. The side of the connecting plate 8 away from the fixing plate 9 is installed with a travel switch 22. The fixing ring 27 is located on the side of the connecting plate 8 away from the fixing plate 9. The side of the fixing ring 27 close to the connecting plate 8 is installed with a touch rod 23. The positions of the travel switch 22 and the touch rod 23 correspond to each other. By setting the travel switch 22 and the touch rod 23 to touch each other, the travel switch 22 can be closed, so that the double-acting cylinder 5 stops continuing to drive the sealing ring body 13 to stretch, thereby reducing the situation where the sealing ring body 13 is broken due to excessive stretching.

[0024] See also Figure 4 and Figure 5The protective mechanism includes a mounting column 11, and the two mounting columns 11 are respectively mounted on the front and rear sides of the double-acting cylinder 5. The two mounting columns 11 are respectively mounted with a front back plate 15 and a rear back plate 14 at one end away from the double-acting cylinder 5. Both ends of the rear back plate 14 and the front back plate 15 are mounted with a fixing ring 27. An adjusting handle 21 is mounted on the front side of the front back plate 15. A movable groove 24 is opened in the middle of the front back plate 15. One end of the adjusting handle 21 is inserted into the movable groove 24. A main gear 26 is mounted on the end of the adjusting handle 21 inserted into the movable groove 24. A bidirectional screw rod 20 is mounted in the middle of the front back plate 15. A section of the bidirectional screw rod 20 located inside the movable groove 24 is mounted with a slave gear 25. The master gear 26 and the slave gear 25 are meshed with each other. Threaded sleeves 16 are mounted on both ends of the bidirectional screw rod 20. The threaded sleeve 16 is inserted in the front Inside the back plate 15, the other ends of the two threaded sleeves 16 are respectively installed on the two fixing rings 27, and a guide rod 18 is installed inside the back plate 14. Sleeves 17 are sleeved at both ends of the guide rod 18. Limit plates 19 are installed on one end of the two sleeves 17 located inside the back plate 14. The outer wall of the limit plate 19 fits into the inner wall of the back plate 14. The other ends of the two sleeves 17 are respectively installed on the two fixing rings 27. The main gear 26 is driven to rotate by the adjusting handle 21, thereby driving the bidirectional screw rod 20 to rotate while driving the slave gear 25 to rotate, so that the bidirectional screw rod 20 drives the two threaded sleeves 16 to open outward or retract inward synchronously, thereby synchronously adjusting the positions of the two fixing rings 27, so that the positions of the two fixing rings 27 always remain symmetrical, which is convenient for the double-acting cylinder 5 to drive the fixing plate 9 to open and move the position.

[0025] Specific implementation method: By turning the adjustment handle 21 to drive the main gear 26 to rotate, the main gear 26 drives the slave gear 25 to rotate and drives the bidirectional screw rod 20 to rotate, thereby driving the threaded sleeves 16 installed at both ends of the bidirectional screw rod 20 to move their positions to both sides respectively, thereby adjusting the position of the fixing ring 27, so that the two fixing rings 27 and the front back plate 15, the rear back plate 14, the threaded sleeve 16 and the sleeve 17 are respectively covered around the tensile test range of the sealing ring body 13, which is convenient for adjusting the protection range according to the tensile force range required to be tested for different sealing ring bodies 13, reducing the situation where unqualified sealing ring bodies 13 fly around during the tensile test process, and improving the safety of the sealing ring body 13 during the tensile test process. Through the cooperation of the guide rod 18 and the sleeve 17 installed in the rear back plate 14, the bidirectional screw rod 20 can drive the fixing ring 27 to adjust its position synchronously to both sides while limiting the moving direction of the fixing ring 27. The supporting force at both ends of the fixing ring 27 is the same, thereby improving the fixing ring 2 When the cam 13 is pulled out of the way, the cam 13 is pulled out of the way, and the cam 13 is pulled out of the way, so that the cam 13 is pulled out of the way and the cam 13 is pulled out of the way.

[0026] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A tensile test device for a sealing ring, comprising a supporting base (1), characterized in that: Four support columns (2) are evenly installed above the supporting base (1), and a top plate (3) is installed on the top of the four support columns (2). Four support feet (6) are evenly installed on the bottom of the supporting base (1). A limit rod (7) is installed at the bottom of the top plate (3), and a double-acting cylinder (5) is installed at the bottom of the limit rod (7). Fixed plates (9) are installed at the output ends of both sides of the double-acting cylinder (5). A protective mechanism is installed on the outside of the double-acting cylinder (5). A storage cylinder (4) is installed above the supporting base (1), and a sealing ring body (13) is installed inside the storage cylinder (4). Touch parts are installed on both sides of the double-acting cylinder (5), and fixed rings (27) are installed on both sides of the double-acting cylinder (5).

2. A tensile testing device for a sealing ring according to claim 1, characterized in that: A supporting base plate (10) is installed inside the storage tube (4), and the diameter of the supporting base plate (10) is the same as the inner diameter of the storage tube (4). An electric push rod (12) is installed at the bottom of the supporting base (1), and the electric push rod (12) is located in the middle of the four supporting legs (6). The output end of the electric push rod (12) is installed with a supporting base plate (10), and a plurality of sealing ring bodies (13) are placed above the supporting base plate (10), and the two fixing plates (9) are inserted in the middle of the sealing ring body (13).

3. The tensile testing device for a sealing ring according to claim 1, characterized in that: The touch member includes a connecting plate (8), two connecting plates (8) are respectively installed on the two output ends of the double-acting cylinder (5), a fixing plate (9) is installed on the side of the two connecting plates (8) close to each other, and a travel switch (22) is installed on the side of the connecting plate (8) away from the fixing plate (9), the fixing ring (27) is located on the side of the connecting plate (8) away from the fixing plate (9), and a touch rod (23) is installed on the side of the fixing ring (27) close to the connecting plate (8), and the positions of the travel switch (22) and the touch rod (23) correspond to each other.

4. The tensile testing device for a sealing ring according to claim 1, characterized in that: The protective mechanism comprises a mounting column (11), wherein two mounting columns (11) are respectively mounted on the front side and the rear side of the double-acting cylinder (5), and a front back plate (15) and a rear back plate (14) are respectively mounted on one end of the two mounting columns (11) away from the double-acting cylinder (5), and fixing rings (27) are mounted on both ends of the rear back plate (14) and the front back plate (15).

5. The tensile testing device for a sealing ring according to claim 4, characterized in that: An adjusting handle (21) is installed on the front side of the front back plate (15), a movable groove (24) is opened in the middle of the front back plate (15), one end of the adjusting handle (21) is inserted in the movable groove (24), and a main gear (26) is installed on the end of the adjusting handle (21) inserted in the movable groove (24). A bidirectional screw rod (20) is installed in the middle of the front back plate (15), and a section of the bidirectional screw rod (20) located in the movable groove (24) is installed with a slave gear (25), and the master gear (26) and the slave gear (25) are meshed with each other. Threaded sleeves (16) are installed at both ends of the bidirectional screw rod (20), and the threaded sleeves (16) are inserted in the front back plate (15). The other ends of the two threaded sleeves (16) are respectively installed on two fixing rings (27).

6. The tensile testing device for a sealing ring according to claim 4, characterized in that: A guide rod (18) is installed inside the back plate (14), and sleeves (17) are provided at both ends of the guide rod (18). A limit plate (19) is installed at one end of the two sleeves (17) located inside the back plate (14). The outer wall of the limit plate (19) and the inner wall of the back plate (14) are in contact with each other, and the other ends of the two sleeves (17) are respectively installed on two fixing rings (27).

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