Anti-seismic support hanger fatigue test device

Abstract

The invention relates to the technical field of support and hanger tests, in particular to an anti-seismic support and hanger fatigue test device which is characterized by comprising a lifting frame, lifting rods are slidably mounted on the two sides of the top of the lifting frame, and lifting lead screws are rotatably mounted at the positions, corresponding to the centers of the two lifting rods, of the lifting frame; a synchronous assembly is arranged between the two lifting lead screws, a motor fixed to the top of the lifting frame is installed at the top end of one lifting lead screw, and three installation assemblies are evenly arranged between the two lifting lead screws. By arranging the lifting rod, the mounting cross beam and the bearing assembly, the lifting rod drives the mounting cross beam to move up and down, the mounting height is adjusted, the mounting position of the support hanger is lowered to a low position, the support hanger is convenient to mount, meanwhile, a pipeline is placed on the bearing assembly at the bottom to be fixed to the support hanger, and connection of the pipeline and the support hanger can be completed without whole-course suspended carrying; and the lifting rod can move upwards to lift the pipeline, and the pipeline does not need to be manually lifted.

Description

Technical Field

[0001] The invention relates to the technical field of support and hanger testing, in particular to a fatigue testing device for anti-seismic support and hanger brackets. Background Art

[0002] Seismic supports and hangers are often used for the installation of various pipelines in buildings. For example, they are used to support and hang fire water pipes, bridges, air ducts, fans and other electromechanical equipment. When in use, they are mainly used to install various pipelines on the ceiling of indoor buildings. Fatigue performance is an important parameter to characterize seismic supports and hangers. Fatigue performance test can reflect the bearing performance of seismic supports and hangers under dynamic alternating load conditions, and is an important parameter in durability judgment.

[0003] A seismic support and hanger testing machine disclosed in Chinese patent CN213022271U, through the setting of an adjustable mounting frame structure, after the sleeve plate is sleeved on the seismic support and hanger, the first threaded column cooperates with the reinforcement plate to reinforce the seismic support and hanger, thereby increasing the effect of fixing the seismic support and hanger. However, while solving the problem, the seismic support and hanger testing machine has the following disadvantages: when installing the seismic support and hanger, the seismic support and hanger needs to be hoisted on the top of the testing machine frame, and the height of the testing machine frame is relatively high, and it is difficult for people standing on the ground to reach its top, making it inconvenient to install the seismic support and hanger. At the same time, when installing the pipeline later, it is necessary to manually lift the pipeline and install it in the lifting ring of the seismic support and hanger, and the pipeline is generally heavy, and it is more laborious to lift it manually. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a fatigue test device for seismic support and hanger.

[0005] The objective of the present invention is achieved through the following technical scheme: A fatigue testing device for seismic support and hanger, comprising a lifting frame, lifting rods are slidably installed on both sides of the top of the lifting frame, lifting screw rods are rotatably installed at the positions of the lifting frame corresponding to the centers of the two lifting rods, a synchronization component is provided between the two lifting screw rods, a motor fixed to the top of the lifting frame is installed at the top of the lifting screw rod, three mounting components are evenly arranged between the two lifting rods, the three mounting components are distributed in a linear array, locking components are provided at both ends of the two outer mounting components, a slide rail is fixedly provided at the bottom of the lifting frame, two supporting components are slidably installed on the slide rail, a test host is provided on the rear side of the lifting frame, a test cylinder is fixedly provided on the side of the test host facing the lifting frame, and a connecting component is installed at the front end of the test cylinder by bolts.

[0006] Preferably, the mounting assembly comprises a mounting crossbeam located between the two lifting rods, and a mounting groove is formed through the mounting crossbeam.

[0007] Preferably: The locking assembly includes a sliding sleeve fixed to one end of the mounting cross beam. The sliding sleeve is slidably connected to the lifting rod. A locking plate is slidably mounted on the side of the sliding sleeve away from the mounting cross beam. A toothed plate is fixedly provided at a position on the lifting rod corresponding to the locking plate. A locking bolt is rotatably mounted on the side of the locking plate away from the toothed plate.

[0008] Preferably: The supporting assembly includes a support frame slidably mounted on the slide rail. A supporting plate is fixedly provided at the top of the support frame.

[0009] Preferably: The connecting assembly includes a flange plate fixed to the front end of the test cylinder by bolts. A connecting arm is fixedly provided on the front side of the flange plate. A fixing plate is fixedly provided at the front end of the connecting arm. Connecting bolt pairs are provided at the four corners of the fixing plate. A clamping plate is slidably provided at the front ends of the four connecting bolt pairs.

[0010] Preferably: The synchronization assembly includes a synchronous pulley fixed to the top of the lifting lead screw. A synchronous belt is installed between the two synchronous pulleys.

[0011] Preferably: Limiting rods are fixedly provided at positions on both sides of the locking bolt on the locking plate. The limiting rods are slidably connected to the sliding sleeve.

[0012] Preferably: The contact surface between the locking plate and the toothed plate is provided with teeth and meshes with the teeth of the toothed plate.

[0013] Preferably: The shape of the support frame is "mountain" shaped.

[0014] Preferably: The shape of the supporting plate is "V" shaped, and a backing plate is fixedly provided on the surface.

[0015] Beneficial effects:

[0016] For this anti-seismic support and hanger fatigue test device, by setting the lifting rod, mounting cross beam, and supporting assembly, the lifting rod drives the mounting cross beam to move up and down to adjust the mounting height, lower the mounting position of the support and hanger to a low place, which is convenient for the installation of the support and hanger. At the same time, the pipeline is placed on the supporting assembly at the bottom and fixed to the support and hanger, and the connection between the two can be completed without the need for full-time suspended handling. Moreover, the lifting rod can move upward to lift the pipeline without manual lifting of the pipeline. Description of the drawings

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 3 It is a structural schematic diagram of the locking assembly of the present invention;

[0021] Figure 4 It is a schematic diagram of the working state of the present invention;

[0022] Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle;

[0023] Figure 6 It is a structural schematic diagram of the installation assembly of the present invention;

[0024] Figure 7 For the present invention Figure 6 A schematic diagram of the local enlarged structure at C in the middle;

[0025] Figure 8 It is a structural schematic diagram of the supporting assembly of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of the connection assembly of the present invention;

[0027] Fig.10 It is a schematic diagram of the connection between the connecting assembly of the present invention and the test cylinder.

[0028] In the figure: 1. lifting frame; 2. lifting rod; 3. lifting screw; 4. motor; 5. synchronization assembly; 501. synchronization wheel; 502. synchronization belt; 6. connecting assembly; 601. flange; 602. connecting arm; 603. fixing plate; 604. connecting bolt pair; 605. clamping plate; 7. installation assembly; 701. installation beam; 702. installation groove; 8. locking assembly; 801. sliding sleeve; 802. locking plate; 803. locking bolt; 804. tooth plate; 805. limiting rod; 9. supporting assembly; 901. supporting frame; 902. supporting plate; 903. pad; 10. test host; 11. test cylinder; 12. slide rail; 13. pipeline; 14. seismic support and hanger; 15. installation bolt pair. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] Additional aspects and advantages of the present invention will be further given in the following description in conjunction with the accompanying drawings, and in part will become apparent from the following description, or may be learned through practice of the present invention.

[0031] like Figures 1 to 10As shown, a fatigue test device for anti-seismic support and hanger comprises a lifting frame 1, lifting rods 2 are slidably installed on both sides of the top of the lifting frame 1, lifting screws 3 are rotatably installed at the positions corresponding to the centers of the lifting frame 1 and the two lifting rods 2, a synchronization component 5 is arranged between the two lifting screws 3, a motor 4 fixed to the top of the lifting frame 1 is installed at the top of one lifting screw 3, three installation components 7 are evenly arranged between the two lifting rods 2, the three installation components 7 are distributed in a linear array, locking components 8 are arranged at both ends of the two outer installation components 7, and a sliding fixed component 5 is arranged at the bottom of the lifting frame 1. A test mainframe 10 is provided on the rear side of the lifting frame 1. A test cylinder 11 is fixedly provided on the side of the test mainframe 10 facing the lifting frame 1. A connecting component 6 is installed at the front end of the test cylinder 11 by bolts. When in use, the positions of the two supporting components 9 are adjusted by sliding along the slide rail 12 so that the two ends of the pipeline 13 can be placed on the two supporting components 9 to temporarily support the pipeline 13. Subsequently, the two anti-seismic support hangers 14 are fixed to the test position on the pipeline 13. At this time, the connecting component 6 is removed from the front end of the test cylinder 11. The lifting frame 1 supports the motor 4 to drive the lifting screw rod 3 below it to rotate through the synchronous component 5, and the two lifting rods 2 on both sides drive the installation component 7 to move downward to a suitable height, so as to facilitate the fixing of the anti-seismic support and hanger 14. The top of the anti-seismic support and hanger 14 is fixed to the three installation components 7 through the installation bolt pair 15. In this process, the locking component 8 can be unlocked, so that the two installation components 7 located on the outside can slide back and forth along the lifting rod 2 under the support of the locking component 8, and the distance between the two adjacent installation components 7 can be adjusted to meet the requirements. Fixing of seismic supports and hangers 14 of different sizes. After the seismic supports and hangers 14 are fixed, repeat the above steps to make the two lifting rods 2 drive the installation assembly 7 to move upward. The installation assembly 7 drives the pipeline 13 to be lifted through the seismic supports and hangers 14. No manual lifting and fixing is required. When the seismic supports and hangers 14 move to the height of the test cylinder 11, the front end of the connecting assembly 6 is fixed to the pipeline 13, and the rear end is fixed to the test cylinder 11 again, so that the test cylinder 11 applies force to the pipeline 13 through the connecting assembly 6 under the support of the test host 10, and a fatigue test of the seismic supports and hangers 14 is carried out.

[0032] like Figure 1 As shown, the synchronization component 5 includes a synchronization wheel 501 fixed to the top of the lifting screw 3, and a synchronization belt 502 is installed between the two synchronization wheels 501; when the lifting screw 3 on one side rotates, it will drive the synchronization wheel 501 on its top to rotate, thereby driving the synchronization wheel 501 and the lifting screw 3 on the other side to rotate synchronously through the synchronization belt 502, ensuring that the lifting rods 2 on both sides are lifted and lowered synchronously.

[0033] like Fig. 9 and Fig.10As shown, the connection assembly 6 includes a flange 601 fixed to the front end of the test cylinder 11 by bolts, a connecting arm 602 is fixedly provided on the front side of the flange 601, a fixing plate 603 is fixedly provided at the front end of the connecting arm 602, and connecting bolt pairs 604 are provided at the four corners of the fixing plate 603, and a clamping plate 605 is slidably provided at the front ends of the four connecting bolt pairs 604; the pipeline 13 is located between the fixing plate 603 and the clamping plate 605, and the two are tightened by the four connecting bolt pairs 604 to make the two close to each other and clamp the pipeline 13, and then the flange 601 is connected to the test cylinder 11, and the test cylinder 11 applies force to the pipeline 13 through the connecting arm 602 to perform a fatigue test.

[0034] like Figures 1 to 6 As shown, the mounting assembly 7 includes a mounting beam 701 located between the two lifting rods 2 , and a mounting slot 702 is formed through the mounting beam 701 ; the mounting bolt pair 15 and the mounting slot 702 cooperate to fix the seismic support bracket 14 on the mounting beam 701 .

[0035] like Figures 1 to 3 As shown, the locking assembly 8 includes a sliding sleeve 801 fixed to one end of the mounting crossbeam 701, the sliding sleeve 801 is slidably connected to the lifting rod 2, a locking plate 802 is slidably installed on the side of the sliding sleeve 801 away from the mounting crossbeam 701, a toothed plate 804 is fixedly provided at a position corresponding to the locking plate 802 on the lifting rod 2, a locking bolt 803 is rotatably installed on the side of the locking plate 802 away from the toothed plate 804, and limiting rods 805 are fixedly provided at positions on both sides of the locking bolt 803 on the locking plate 802, the limiting rods 805 are slidably connected to the sliding sleeve 801, and a toothed plate 804 is provided on the contact surface of the locking plate 802 and the toothed plate 804. The locking bolt 803 is rotated to drive the locking plate 802 along the limit rod 805 away from the tooth plate 804, thereby releasing the locking state of the sliding sleeve 801 and the lifting rod 2, thereby adjusting the position of the mounting beam 701 to adapt to the installation of different sizes of anti-seismic support brackets 14. After the adjustment is completed, the above-mentioned reverse steps are repeated to make the locking plate 802 re-engage the tooth plate 804 to form surface contact friction rather than point fixation of traditional latches. At the same time, the meshing teeth of the two mesh with each other, which greatly improves the shear resistance and effectively prevents the displacement of the mounting beam 701 caused by vibration during the test.

[0036] like Figures 6 to 8As shown, the supporting assembly 9 includes a supporting frame 901 slidably mounted on the slide rail 12, a supporting plate 902 is fixedly provided on the top of the supporting frame 901, a pad 903 is fixedly provided on the surface of the supporting plate 902, the shape of the supporting frame 901 is a "mountain" shape, and the shape of the supporting plate 902 is a "V" shape; the supporting frame 901 drives the supporting plate 902 to slide along the slide rail 12, and the positions of the two supporting plates 902 are adjusted so that both ends of the pipes 13 of different lengths can be placed on the two supporting plates 902, and at the same time, the "V"-shaped supporting plate 902 can prevent the pipe 13 from moving, thereby improving its placement stability, and the setting of the pad 903 reduces the impact and noise generated by the placement.

[0037] The working process is as follows:

[0038] S1: Figures 6 to 8 As shown, the support frame 901 drives the supporting plate 902 to slide along the slide rail 12, and the positions of the two supporting plates 902 are adjusted so that the two ends of the pipeline 13 can be placed on the two supporting plates 902 under the buffering of the pad 903. At this time, the seismic support and hanger 14 is fixed on the pipeline 13 according to the test position;

[0039] S2: Fig. 9 and Fig.10 As shown, the flange 601 is removed from the front end of the test cylinder 11, thereby temporarily removing the connecting assembly 6;

[0040] S3: Figures 1 to 7 As shown, the lifting frame 1 support motor 4 drives the lifting screw 3 below it to drive another lifting screw 3 to rotate synchronously through the synchronous wheel 501 and the synchronous belt 502, thereby synchronously pushing the two lifting rods 2 on both sides to drive the installation assembly 7 to move downward to a suitable height, so that the mounting bolt pair 15 cooperates with the mounting groove 702 to fix the seismic support and hanger 14 on the mounting beam 701;

[0041] S4: Figures 1 to 3 As shown, during the fixing process, the locking bolt 803 can be rotated to drive the locking plate 802 along the limiting rod 805 away from the tooth plate 804, and the locking state of the sliding sleeve 801 and the lifting rod 2 is released, so as to adjust the position of the installation beam 701 to adapt to the installation of different sizes of anti-seismic support and hanger brackets 14. After the adjustment is completed, the above reverse steps are repeated to make the locking plate 802 re-engage the tooth plate 804;

[0042] S5: Figure 3 As shown, repeat the above steps to make the two lifting rods 2 drive the installation beam 701 to move upward, and the installation beam 701 drives the pipeline 13 to be lifted through the seismic support bracket 14;

[0043] S6: Fig. 9 and Fig.10As shown, when the seismic support and hanger 14 is moved to the height of the test cylinder 11, the clamping plate 605 and the connecting bolt pair 604 are removed from the fixing plate 603, and the clamping plate 605 and the fixing plate 603 are respectively pressed against the front and rear sides of the pipe 13, and then the two are reconnected by four connecting bolt pairs 604, and the two are tightened to make them close to each other and clamp the pipe 13;

[0044] S7: Fig. 9 and Fig.10 As shown, after the front end of the connecting assembly 6 is fixed to the pipe 13, the flange 601 is re-fixed to the front end of the test cylinder 11. At this time, the test host 10 supports the test cylinder 11 to apply force to the pipe 13 through the connecting arm 602 to perform a fatigue test.

[0045] In the present application, the motor 4, the test host 10 and the test cylinder 11 are well-known technologies in the technical field, so their specific structures and working principles are not described in detail.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A fatigue test device for seismic support and hanger, characterized in that: It includes a lifting frame (1), on both sides of the top of the lifting frame (1), lifting rods (2) are slidably installed. At positions corresponding to the centers of the lifting frame (1) and the two lifting rods (2), lifting screw rods (3) are rotatably installed. A synchronization component (5) is provided between the two lifting screw rods (3). At the top of one of the lifting screw rods (3), a motor (4) fixed to the top of the lifting frame (1) is installed. Three mounting components (7) are evenly provided between the two lifting rods (2). The three mounting components (7) are distributed in a linear array. At both ends of the two outer mounting components (7), locking components (8) are provided. At the bottom of the lifting frame (1), a slide rail (12) is fixedly provided. Two supporting components (9) are slidably installed on the slide rail (12). At the rear of the lifting frame (1), there is a test main machine (10). On the side of the test main machine (10) facing the lifting frame (1), a test cylinder (11) is fixedly provided. At the front end of the test cylinder (11), a connection component (6) is installed through bolts.

2. The anti-seismic support and hanger fatigue test device according to claim 1, characterized in that: The mounting component (7) includes a mounting cross beam (701) located between the two lifting rods (2), and a mounting slot (702) is penetratedly opened on the mounting cross beam (701).

3. The anti-seismic support and hanger fatigue test device according to claim 2, characterized in that: The locking component (8) includes a sliding sleeve (801) fixed to one end of the mounting cross beam (701). The sliding sleeve (801) is slidably connected to the lifting rod (2). On the side of the sliding sleeve (801) away from the mounting cross beam (701), a locking plate (802) is slidably installed. At the position on the lifting rod (2) corresponding to the locking plate (802), a toothed plate (804) is fixedly provided. On the side of the locking plate (802) away from the toothed plate (804), a locking bolt (803) is rotatably installed.

4. The anti-seismic support and hanger fatigue test device according to claim 1, characterized in that: The supporting component (9) includes a supporting frame (901) slidably installed on the slide rail (12), and a supporting plate (902) is fixedly provided on the top of the supporting frame (901).

5. The anti-seismic support and hanger fatigue test device according to claim 1, characterized in that: The connection component (6) includes a flange plate (601) fixed to the front end of the test cylinder (11) through bolts. On the front side of the flange plate (601), a connecting arm (602) is fixedly provided. At the front end of the connecting arm (602), a fixing plate (603) is fixedly provided. At the four corners of the fixing plate (603), connecting bolt pairs (604) are provided. At the front ends of the four connecting bolt pairs (604), a clamping plate (605) is slidably provided.

6. The anti-seismic support and hanger fatigue test device according to claim 1, characterized in that: The synchronization component (5) includes a synchronous pulley (501) fixed to the top of the lifting screw rod (3), and a synchronous belt (502) is installed between the two synchronous pulleys (501).

7. The anti-seismic support and hanger fatigue test device according to claim 3, characterized in that: At positions on both sides of the locking bolt (803) on the locking plate (802), limiting rods (805) are fixedly provided. The limiting rods (805) are slidably connected to the sliding sleeve (801).

8. The anti-seismic support and hanger fatigue test device according to claim 3, characterized in that: The contact surface between the locking plate (802) and the toothed plate (804) is provided with teeth and meshes with the teeth of the toothed plate (804).

9. The anti-seismic support and hanger fatigue test device according to claim 4, characterized in that: The shape of the supporting frame (901) is "mountain" shaped.

10. The anti-seismic support and hanger fatigue test device according to claim 4, characterized in that: The support plate (902) is in a "V" shape, and a pad (903) is fixedly provided on the surface.

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