A test dynamic torque apparatus
By designing a dynamic torque testing device that includes an outer frame, motor, lead screw, torque measurement components, and clamping components, the problem of inaccurate values caused by improper fixing in ball valve torque testing was solved, achieving stable fixing of the ball valve and accurate torque measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING SHENGKE HEAT TRACING TECH CO LTD
- Filing Date
- 2025-09-30
- Publication Date
- 2026-06-05
AI Technical Summary
When testing the torque of a ball valve using existing equipment, the fixing process can easily lead to inaccurate torque values, affecting quality.
A dynamic torque testing device was designed, comprising an outer frame, a motor, a lead screw, a torque measurement component, and a clamping component. The ball valve is stably fixed by components such as a cylinder, clamping plate, rack, and inertial gear, ensuring the accuracy of torque measurement.
This ensures the stable fixation of the ball valve during the testing process, guaranteeing the accuracy and reliability of torque measurement and avoiding torque value deviations caused by improper fixation.
Smart Images

Figure CN224327834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dynamic torque testing technology, specifically a device for testing dynamic torque. Background Technology
[0002] After the ball valve is manufactured, before the rotating handle is installed, the switching torque of the ball valve needs to be dynamically tested. If the switching torque value of the ball valve is too large and exceeds the rated value, it may affect the quality of the ball valve product.
[0003] However, in actual use, existing equipment requires fixing the ball valve when testing its torque. When manually fixing the ball valve, it is easy to apply steering pressure to the ball valve, which may lead to inaccurate torque values measured by the ball valve. In view of this, we propose a device for testing dynamic torque. Utility Model Content
[0004] The purpose of this invention is to provide a device for testing dynamic torque in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dynamic torque testing device, comprising an outer frame, a base frame fixedly connected to the outer wall of the outer frame, a motor disposed inside the outer frame, a lead screw fixedly connected to the output end of the motor, a torque measuring component disposed on the outer wall of the lead screw, a fixing frame fixedly connected to the inner wall of the outer frame, and a clamping component disposed inside the fixing frame, the clamping component comprising:
[0006] A cylinder is fixedly connected to the lower outer wall of the fixed frame. A connecting plate is fixedly connected to the output end of the cylinder. A clamping plate is fixedly connected to the end of the connecting plate away from the cylinder. A spring washer is fixedly connected to the outer wall of the clamping plate.
[0007] A rack is fixedly connected to the lower outer wall of the clamping plate. An inert gear meshes with the outer wall of the rack. A fixed seat is fixedly connected to the outer wall of the fixed frame. A threaded rod is threaded through and threaded to the outer wall of the fixed seat. A support is rotatably connected to the upper outer wall of the threaded rod.
[0008] Preferably, the fixed base is provided with a fixing component inside. The fixing component includes a limiting plate, which is slidably connected to the outer wall of the fixed base. A collar is fixedly connected to the upper outer wall of the limiting plate. A plug rod is slidably connected to the outer wall of the collar. A spring is sleeved on the outer wall of the plug rod. A baffle is fixedly connected to the outer wall of the plug rod. A locking groove is opened on the outer wall of the threaded rod, so that after the position and angle of the ball valve are determined by rotating the threaded rod and the support, the threaded rod and the support can be fixed by the fixing component.
[0009] Preferably, one end of the spring is fixedly connected to the outer wall of the collar, and the end of the spring away from the collar is fixedly connected to the outer wall of the baffle, so that the spring can drive the insertion rod to position the height of the threaded rod and the angle of rotation of the support.
[0010] Preferably, the insertion rod passes through the collar and is slidably connected to the inner wall of the collar, and the diameter of the baffle is larger than the diameter of the insertion rod. This prevents the insertion rod from detaching from the collar, thus ensuring that the insertion rod remains stable within the collar and does not come off.
[0011] Preferably, both ends of the fixing frame are provided with clamps, and the racks of the two sets of clamps are respectively meshed with the two ends of the inertial gear. The inertial gear is rotatably connected to the outer wall of the fixing frame. When the cylinder pushes the connecting plate to move, the connecting plate can drive a set of clamps to move, thereby causing a set of racks to drive the inertial gear, which in turn causes another set of racks to drive another set of clamps to move, thus fixing the ball valve.
[0012] Preferably, each of the two sets of clamping plates has a spring pad at one end that is close to the other. The fixing seat is fixedly connected to the outer wall of the fixing frame near the inertial gear. After the ball valve is placed on the support, the two sets of clamping plates can move together to fix the ball valve in the center of the fixing frame.
[0013] Preferably, the upper outer wall of the support has an arc surface, and both the threaded rod and the outer wall of the support have locking grooves. The locking grooves of the threaded rod and the support are penetrated by the insert rod, so that after rotating the threaded rod to raise it, the support can be rotated. At this time, the collar can be pulled up and the insert rod can be pushed into the locking groove, so that the height and angle of the ball valve can be positioned.
[0014] Compared with the prior art, the present invention provides a device for testing dynamic torque, which has the following advantages:
[0015] 1. This dynamic torque testing device raises the threaded rod by rotating it, places the ball valve on the support, and then rotates the support to a specified angle so that the ball valve can connect with the torque measuring component at a suitable angle. At this time, when the cylinder pushes the connecting plate to move, it can cause a set of clamping plates to drive a set of racks to rotate the inertial gear, thereby causing another set of racks to drive another set of clamping plates to move, fixing the ball valve in the center of the fixing frame 6, so that the ball valve can be stably measured by the torque measuring component.
[0016] 2. This dynamic torque testing device allows the ball valve to be positioned by pulling up the collar after its position is determined, causing the insert rod to be inserted into the locking groove. At this time, the insert rod is pushed by the spring and stably engaged with the locking groove, ensuring that the height and angle of the ball valve can be stably positioned, preventing the ball valve from shifting when fixed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0018] Figure 2 This is a schematic diagram of the torque measurement component of this utility model;
[0019] Figure 3 This is a schematic diagram of the fixing frame structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing frame of this utility model;
[0021] Figure 5 This is a schematic diagram of the component support structure of this utility model.
[0022] Figure 6 This is a schematic diagram of the internal structure of the threaded rod of this utility model.
[0023] In the diagram: 1. Outer frame; 2. Base frame; 3. Motor; 4. Lead screw; 5. Torque measuring assembly; 6. Fixing frame; 7. Clamping assembly; 71. Cylinder; 72. Connecting plate; 73. Clamping plate; 74. Spring washer; 75. Rack; 76. Inertial gear; 77. Fixing seat; 78. Threaded rod; 79. Part support; 8. Fixing assembly; 81. Limiting plate; 82. Collar; 83. Insert rod; 84. Spring; 85. Baffle; 86. Locking groove. Detailed Implementation
[0024] like Figures 1-6 As shown, this utility model provides a technical solution: a dynamic torque testing device, including an outer frame 1, a base frame 2 fixedly connected to the outer wall of the outer frame 1, a motor 3 disposed inside the outer frame 1, a lead screw 4 fixedly connected to the output end of the motor 3, a torque measuring component 5 disposed on the outer wall of the lead screw 4, a fixing frame 6 fixedly connected to the inner wall of the outer frame 1, a clamping component 7 disposed inside the fixing frame 6, the clamping component 7 including a cylinder 71, a connecting plate 72, a clamping plate 73, a spring washer 74, a rack 75, an inertial gear 76, a fixing seat 77, a threaded rod 78, and a support 79.
[0025] In one embodiment of the present invention, the cylinder 71 is fixedly connected to the lower outer wall of the fixing frame 6, the output end of the cylinder 71 is fixedly connected to the connecting plate 72, the end of the connecting plate 72 away from the cylinder 71 is fixedly connected to the clamping plate 73, and the outer wall of the clamping plate 73 is fixedly connected to the spring washer 74.
[0026] In one embodiment of this utility model, a rack 75 is fixedly connected to the lower outer wall of a clamping plate 73, an inertial gear 76 meshes with the outer wall of the rack 75, a fixing seat 77 is fixedly connected to the outer wall of the fixing frame 6, a threaded rod 78 is threaded through and threaded to the outer wall of the fixing seat 77, and a support 79 is rotatably connected to the upper outer wall of the threaded rod 78.
[0027] In addition, a fixing component 8 is provided inside the fixing seat 77. The fixing component 8 includes a limiting plate 81, which is slidably connected to the outer wall of the fixing seat 77. A collar 82 is fixedly connected to the upper outer wall of the limiting plate 81. A plug rod 83 is slidably connected to the outer wall of the collar 82. A spring 84 is sleeved on the outer wall of the plug rod 83. A baffle 85 is fixedly connected to the outer wall of the plug rod 83. A locking groove 86 is opened on the outer wall of the threaded rod 78. After the position and angle of the ball valve are determined by rotating the threaded rod 78 and the support 79, the threaded rod 78 and the support 79 can be fixed by the fixing component 8, so that the position and angle of the ball valve can be determined.
[0028] In an embodiment of this utility model, one end of the spring 84 is fixedly connected to the outer wall of the collar 82, and the end of the spring 84 away from the collar 82 is fixedly connected to the outer wall of the baffle 85, so that the spring 84 can drive the insertion rod 83 to position the height of the threaded rod 78 and the angle of rotation of the support 79, thereby fixing the position of the ball valve placed on the support 79.
[0029] In this embodiment of the invention, the insertion rod 83 slides through the collar 82 and is connected to the inner wall of the collar 82. The diameter of the baffle 85 is larger than the diameter of the insertion rod 83. This prevents the insertion rod 83 from detaching from the collar 82, thus ensuring that the insertion rod 83 remains stable within the collar 82 and can be stably inserted into the locking groove 86 to fix the position of the ball valve.
[0030] In this embodiment of the utility model, clamping plates 73 are provided at both ends of the fixing frame 6. The racks 75 of the two sets of clamping plates 73 mesh with the two ends of the inertial gears 76 respectively. The inertial gears 76 are rotatably connected to the outer wall of the fixing frame 6. When the cylinder 71 pushes the connecting plate 72 to move, the connecting plate 72 can drive a set of clamping plates 73 to move, thereby causing a set of racks 75 to drive the inertial gears 76 to drive another set of racks 75 to drive another set of clamping plates 73 to move, thereby fixing the ball valve and enabling the ball valve to be stably measured by the torque measuring component 5.
[0031] In this embodiment of the utility model, spring pads 74 are provided at the ends of the two sets of clamping plates 73 that are close to each other. The fixing seat 77 is fixedly connected to the outer wall of the fixing frame 6 near the inertial gear 76. After the ball valve is placed on the support 79, the two sets of clamping plates 73 can move together to fix the ball valve in the center of the fixing frame 6, so that the rotating end of the ball valve can be fixedly connected to the output end of the torque measuring component 5.
[0032] In this embodiment of the utility model, the upper outer wall of the support 79 is provided with an arc surface, and both the threaded rod 78 and the outer wall of the support 79 are provided with locking grooves 86. The locking grooves 86 of the threaded rod 78 and the locking grooves 86 of the support 79 are both penetrated by the insertion rod 83. After rotating the threaded rod 78 to raise it, the support 79 is rotated. At this time, the collar 82 can be pulled up and the insertion rod 83 can be pushed to insert into the locking groove 86, so that the height and angle of the ball valve can be positioned, and the ball valve can be easily connected to the torque measuring component 5.
[0033] In this utility model, during use, first rotate the threaded rod 78 to raise it, place the ball valve on the support 79 and rotate the ball valve to the specified angle, then pull up the collar 82 and push the insert rod 83 into the locking groove 86 so that the height and angle of the ball valve can be positioned, allowing the ball valve to be easily connected to the torque measuring component 5. At this time, when the cylinder 71 pushes the connecting plate 72 to move, it can move a set of clamping plates 73, drive a set of racks 75 to rotate the inertial gear 76, thereby causing another set of racks 75 to drive another set of clamping plates 73 to move, fixing the ball valve in the center of the fixing frame 6, so that the ball valve can be stably measured by the torque measuring component 5. At this time, the motor 3 can drive the lead screw 4 to rotate, connecting the rotating end of the ball valve to the input end of the torque measuring component 5, so that the torque measuring component 5 can measure the torque of the ball valve.
[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A dynamic torque testing device, comprising an outer frame (1), a base frame (2) fixedly connected to the outer wall of the outer frame (1), a motor (3) disposed inside the outer frame (1), a lead screw (4) fixedly connected to the output end of the motor (3), a torque measuring component (5) disposed on the outer wall of the lead screw (4), and a fixing frame (6) fixedly connected to the inner wall of the outer frame (1), characterized in that: The fixing frame (6) is provided with a clamping assembly (7) inside, the clamping assembly (7) including: Cylinder (71), the cylinder (71) is fixedly connected to the lower outer wall of the fixed frame (6), the output end of the cylinder (71) is fixedly connected to a connecting plate (72), the end of the connecting plate (72) away from the cylinder (71) is fixedly connected to a clamping plate (73), and the outer wall of the clamping plate (73) is fixedly connected to a spring washer (74). A rack (75) is fixedly connected to the lower outer wall of the clamp (73). An inert gear (76) meshes with the outer wall of the rack (75). A fixed seat (77) is fixedly connected to the outer wall of the fixed frame (6). A threaded rod (78) is threaded through and threaded to the outer wall of the fixed seat (77). A support (79) is rotatably connected to the upper outer wall of the threaded rod (78).
2. The dynamic torque testing device according to claim 1, characterized in that: The fixed base (77) is provided with a fixing component (8) inside. The fixing component (8) includes a limiting plate (81). The limiting plate (81) is slidably connected to the outer wall of the fixed base (77). A collar (82) is fixedly connected to the upper outer wall of the limiting plate (81). A plug rod (83) is slidably connected to the outer wall of the collar (82). A spring (84) is sleeved on the outer wall of the plug rod (83). A baffle (85) is fixedly connected to the outer wall of the plug rod (83). A locking groove (86) is opened on the outer wall of the threaded rod (78).
3. The dynamic torque testing device according to claim 2, characterized in that: One end of the spring (84) is fixedly connected to the outer wall of the collar (82), and the end of the spring (84) away from the collar (82) is fixedly connected to the outer wall of the baffle (85).
4. A dynamic torque testing device according to claim 2, characterized in that: The insertion rod (83) passes through the collar (82) and is slidably connected to the inner wall of the collar (82). The diameter of the baffle (85) is larger than the diameter of the insertion rod (83).
5. A dynamic torque testing device according to claim 1, characterized in that: Both ends of the fixed frame (6) are provided with clamps (73), and the racks (75) of the two sets of clamps (73) respectively mesh with the two ends of the inert gear (76), and the inert gear (76) is rotatably connected to the outer wall of the fixed frame (6).
6. A dynamic torque testing device according to claim 5, characterized in that: Both sets of clamps (73) are provided with spring pads (74) at their respective ends that are close to each other, and the fixing seat (77) is fixedly connected to the outer wall of the fixing frame (6) near the inert gear (76).
7. A dynamic torque testing device according to claim 2, characterized in that: The upper outer wall of the component holder (79) is provided with an arc surface, and the outer walls of the threaded rod (78) and the component holder (79) are both provided with locking grooves (86). The locking grooves (86) of the threaded rod (78) and the locking grooves (86) of the component holder (79) are both penetrated by the insert rod (83).