Calibrating device for tension measuring instrument
By designing a tension meter calibration device including support and cleaning functions, the problem of lack of support and cleaning functions of calibration devices in the prior art is solved, and higher calibration accuracy and accuracy are achieved.
Patent Information
- Application Number
- CN202510228842.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-03-28
AI Technical Summary
The existing tensile meter calibration device lacks a support device, which causes the rapid drop of heavy weights to impact the meter, affecting the calibration accuracy, and lacks cleaning and detection devices, resulting in impurities on the weights affecting the calibration results.
A calibration device including a device body, a bracket, a tensioner, a driving plate and a clamping plate is designed to support the weights through the driving plate, and dynamic tension calibration and surface cleaning of the weights through the stretching mechanism and cleaning ring are carried out.
The bearing device prevents the weight from falling rapidly, reduces the impact on the meter, and improves calibration accuracy; removes impurities on the weight by cleaning device to ensure the accuracy of calibration results.
Smart Images
Figure CN119714676A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of tension calibration, in particular to a tension measuring instrument calibration device. Background Art
[0002] A force gauge is an instrument used to measure tension or tension. They are widely used in various industrial fields, such as material testing, engineering, manufacturing, and scientific research. A force gauge can be used to determine the physical properties of a material, such as its ultimate strength and elastic modulus, and can also be used to measure the tension in a rope, chain, or other object. Force gauges include conventional hook-type force gauges, weighing force gauges, etc.
[0003] When an existing tension meter is calibrated, weights are usually used for calibration. Weights with different values are hung below and the weight values are compared with the values displayed on the tension meter to calibrate the tension meter. However, the existing calibration device lacks a supporting device inside. When the tension meter uses heavy weights for tension calibration, if the heavy weights are not supported, the heavy weights fall rapidly due to their own gravity, which will cause a large impact on the tension meter, causing the elastic elements or sensors inside the measuring device to produce instantaneous excessive deformation, resulting in the zero point of the measuring device to shift, thereby affecting the calibration accuracy. In addition, the existing calibration device also lacks a cleaning and detection device for the weights. If the weights are contaminated with impurities and are not cleaned, the weight of the weights themselves will not match the rated weight of the target. In the case of more precise tension calibration, inaccuracy will also occur. Summary of the invention
[0004] The purpose of the present invention is to provide a tension measuring instrument calibration device to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tension measuring instrument calibration device, comprising an equipment body, a bracket fixedly connected to the outer wall of the equipment body, a tensioner installed on the bracket, a pull rope installed at the bottom of the tensioner, a hook provided at the bottom of the pull rope, side grooves fixedly connected to both sides of the equipment body, threaded rods rotatably connected inside the two side grooves, a driving motor is provided at one end of the two threaded rods, a belt is sleeved between the ends of the threaded rods on both sides, a driving plate is threadedly sleeved on the outer walls of the two threaded rods, and a drive plate is opened on the driving plate A placement groove is provided, a weight is installed inside the placement groove, a hanging ring is provided on the weight, multiple slide grooves are opened on both sides of the driving plate, and the interiors of the multiple slide grooves are slidably connected with pushing members, a pressure spring is fixedly connected to the outer wall of the pushing member, and the other end of the pressure spring is fixedly connected to the inner wall of the slide groove, and the ends of the multiple pushing members are commonly connected to a clamping plate, and a stretching mechanism is provided on the clamping plate, and the stretching mechanism includes a pulling plate arranged on the clamping plate, an inner rail is opened inside the pulling plate, and a contact protrusion is fixedly connected to the outer wall of the pulling plate, and a roller is provided at the end of the contact protrusion.
[0006] Preferably, bottom grooves are provided on both sides of the bottom of the device body, and a push plate is slidably connected to the inside of the bottom groove, and limiting rods are fixedly connected to both sides of the driving plate. The upper end of the push plate is slidably sleeved on the outer wall of the limiting rod, and a return spring is fixedly connected to the outer wall of the push plate, and one end of the return spring away from the push plate is fixedly connected to the outer wall of the bottom groove, and the upper end of the push plate is slidably located inside the inner rail.
[0007] Preferably, a supporting plate is slidably connected to the interior of the placement slot, and pressure rods are fixedly connected to both sides of the bottom of the supporting plate, and the two pressure rods both penetrate to the outside of the placement slot.
[0008] Preferably, a compression spring is sleeved on one side of the pressure rod located inside the placement slot, the other end of the compression spring is fixedly connected to the outer wall of the support plate, and one end of the support plate located outside the placement slot is rotatably connected to a contact wheel.
[0009] Preferably, a side rod is fixedly connected to the outer wall of the push plate, and mounting parts are fixedly connected to both sides of the bottom of the driving plate. A sliding rod is slidably connected inside the mounting parts, and a contact frame is provided at the end of the sliding rod. The contact frame is slidably sleeved on the outer wall of the side rod, and a pulley is provided inside the contact frame, and the pulley is in rolling contact with the outer wall of the side rod.
[0010] Preferably, a return spring is fixedly connected to the outer side wall of the contact frame, and one end of the return spring away from the contact frame is fixedly connected to the outer side wall of the mounting member.
[0011] Preferably, an end of the slide bar away from the contact frame is fixedly connected with an inclined convex part, and the inclined convex part is in rolling contact with the contact wheel.
[0012] Preferably, a plurality of support columns are fixedly connected to the outer side wall of the driving plate, and ends of the plurality of support columns are commonly connected to a cleaning ring, and a cleaning mechanism is disposed inside the cleaning ring.
[0013] Preferably, the cleaning mechanism comprises inner grooves opened on both sides of the cleaning ring, a scraper is slidably connected inside the inner groove, contact springs are fixedly connected on both sides of the scraper, and one end of the contact spring away from the scraper is fixedly connected to the inner wall of the inner groove.
[0014] Preferably, triggering members are fixedly connected to both sides of the cleaning ring, and alarms corresponding to the triggering members are arranged on the scraper.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the setting of the driving plate and other mechanisms, when in use, the weights can be placed in the placement slot, and the weights will be clamped by two clamping plates. At this time, the driving plate will support the weights to prevent the weights from falling quickly and causing impact on the tensioner, affecting the measurement and calibration accuracy of the tensioner. While supporting the weights, the driving plate will also pull the rope down through the weights to perform dynamic tension calibration on the tensioner. When the driving plate supports the weights to a certain extent, the clamping plate will release the weights, and the weights will be separated from the driving plate. At this time, the tensioner can be statically calibrated. Through the combination of dynamic and static calibration, the measurement and calibration results can be more accurate.
[0016] 2. Through the setting of cleaning rings and other mechanisms, when in use, the scraper will scrape off impurities on the surface of the weight to prevent the weight of the weight from being affected by impurities. When the scraper scrapes off impurities on the surface of the weight, if there are impurities that are difficult to clean on the surface of the weight, such as rust, the scraper will alarm and remind you to replace the weight. By cleaning the surface of the weight, the measurement calibration accuracy can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the local structure of the present invention Figure 1 ; Figure 4 It is a schematic diagram of the local structure of the present invention Figure 2 ; Figure 5 for Figure 4 A magnified view of middle; Figure 6 It is a schematic diagram of the local structure of the present invention Figure 3 ; Figure 7 The planar structure of the present invention is shown in FIG. Figure 1 ; Figure 8 It is a schematic diagram of the local structure of the present invention Figure 4 ; Fig. 9 It is a schematic diagram of the cleaning ring structure of the present invention; Fig.10 The planar structure of the present invention is shown in FIG. Figure 2 .
[0018] In the accompanying drawings, the list of components represented by each number is as follows: 1. Equipment body; 2. Bracket; 3. Weight; 4. Tensioner; 5. Pull rope; 6. Side groove; 7. Threaded rod; 8. Driving motor; 9. Belt; 10. Driving plate; 11. Push plate; 12. Limit rod; 13. Placement groove; 14. Pull plate; 15. Clamping plate; 16. Pushing member; 17. Inner rail; 18. Contact protrusion; 19. Bottom groove; 20. Return spring; 21. Slide groove; 22. Pressure spring; 23. Side rod; 24. Pressing spring; 25. Support plate; 26. Pressure rod; 27. Contact wheel; 28. Mounting member; 29. Return spring; 30. Contact frame; 31. Oblique protrusion; 32. Slide rod; 33. Pulley; 34. Contact spring; 35. Inner groove; 36. Scraper; 37. Trigger member; 38. Alarm; 39. Cleaning ring. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] Example 1: Please refer to Figure 1 - Fig.10A tension measuring instrument calibration device comprises an equipment body 1, a bracket 2 is fixedly connected to the outer wall of the equipment body 1, a tensioner 4 is installed on the bracket 2, a pull rope 5 is installed at the bottom of the tensioner 4, a hook is arranged at the bottom of the pull rope 5, side grooves 6 are fixedly connected to both sides of the equipment body 1, threaded rods 7 are rotatably connected inside the two side grooves 6, a driving motor 8 is arranged at one end of the two threaded rods 7, belts 9 are sleeved between the ends of the threaded rods 7 on both sides, a driving plate 10 is threadedly sleeved on the outer walls of the two threaded rods 7, a placement groove 13 is opened on the driving plate 10, and a placement groove 13 is installed inside A weight 3 is provided, and a hanging ring is provided on the weight 3. Multiple slide grooves 21 are opened on both sides of the driving plate 10. Pushers 16 are slidably connected inside the multiple slide grooves 21. A pressure spring 22 is fixedly connected to the outer wall of the pusher 16. The other end of the pressure spring 22 is fixedly connected to the inner wall of the slide groove 21. The ends of the multiple pushers 16 are commonly connected to a clamping plate 15. A stretching mechanism is provided on the clamping plate 15. The stretching mechanism includes a pull plate 14 arranged on the clamping plate 15. An inner rail 17 is opened inside the pull plate 14. A contact protrusion 18 is fixedly connected to the outer wall of the pull plate 14, and a roller is provided at the end of the contact protrusion 18.
[0021] Bottom grooves 19 are provided on both sides of the bottom of the device body 1, and a push plate 11 is slidably connected inside the bottom groove 19. Limit rods 12 are fixedly connected on both sides of the driving plate 10. The upper end of the push plate 11 is slidably sleeved on the outer wall of the limit rod 12, and a return spring 20 is fixedly connected to the outer wall of the push plate 11. One end of the return spring 20 away from the push plate 11 is fixedly connected to the outer wall of the bottom groove 19, and the upper end of the push plate 11 is slidably located inside the inner rail 17.
[0022] A supporting plate 25 is slidably connected inside the placement groove 13 , and pressure rods 26 are fixedly connected to both sides of the bottom of the supporting plate 25 . Both pressure rods 26 penetrate to the outside of the placement groove 13 .
[0023] A pressing spring 24 is sleeved on one side of the pressure rod 26 located inside the placement groove 13 , and the other end of the pressing spring 24 is fixedly connected to the outer wall of the supporting plate 25 , and one end of the supporting plate 25 located outside the placement groove 13 is rotatably connected to a contact wheel 27 .
[0024] A side rod 23 is fixedly connected to the outer wall of the push plate 11, and mounting parts 28 are fixedly connected to both sides of the bottom of the driving plate 10. A sliding rod 32 is slidably connected inside the mounting part 28. A contact frame 30 is provided at the end of the sliding rod 32. The contact frame 30 is slidably sleeved on the outer wall of the side rod 23. A pulley 33 is provided inside the contact frame 30, and the pulley 33 is in rolling contact with the outer wall of the side rod 23.
[0025] In this embodiment, when in use, the operator can first open the clamping plates 15 on both sides, and then put the weight 3 to be used into the placement groove 13, and hook the hook at the end of the pull rope 5 with the hanging ring to complete the connection between the pull rope 5 and the weight 3. When the weight 3 enters the placement groove 13, the two clamping plates 15 are released. At this time, the two clamping plates 15 will clamp the weight 3 under the elastic force of the pressure spring 22. At this time, the operator can turn on the driving motor 8 and drive the two threaded rods 7 to rotate synchronously through cooperation with the belt 9. When the two threaded rods 7 rotate synchronously, the driving plate 10 will be driven to move together with the weight 3. Since the weight 3 and the driving plate 10 are moving synchronously at this time, the pulling force on the tensioner 4 is no longer the gravity of the weight 3, but the pulling force generated by the downward movement of the driving plate 10. As the driving plate 10 continues to move downward, the operator can observe whether the pulling force on the tensioner 4 is Whether it is constantly changing, in order to determine the dynamic tension calibration effect of the tensioner 4, since the roller on the contact protrusion 18 is in rolling contact with the outer wall of the push plate 11, as the driving plate 10 continues to move downward, the roller at the end of the contact protrusion 18 will always be in contact with the bevel of the push plate 11, and as the contact protrusion 18 continues to move downward, the protruding bevel of the push plate 11 will push the entire pulling plate 14 to move toward both sides of the driving plate 10, allowing the clamping plate 15 to break away from the contact with the weight 3. When the clamping plate 15 is no longer in contact with the weight 3, it will lose its clamping of the weight 3. At this time, when the driving plate 10 continues to descend, the weight 3 will break away from the placement groove 13 until it is completely separated from the driving plate 10. Outside, when the weight 3 is no longer in contact with the driving plate 10, the tension exerted on the tensioner 4 is the gravity of the weight 3 itself. By comparing the weight of the weight 3 itself and the weight displayed by the tensioner 4, the entire tensioner 4 can be calibrated.
[0026] Example 2: Please refer to Figure 1 - Fig.10 A return spring 29 is fixedly connected to the outer wall of the contact frame 30 , and one end of the return spring 29 away from the contact frame 30 is fixedly connected to the outer wall of the mounting member 28 .
[0027] One end of the slide bar 32 away from the contact frame 30 is fixedly connected with an inclined protrusion 31 , and the inclined protrusion 31 is in rolling contact with the contact wheel 27 .
[0028] A plurality of support columns are fixedly connected to the outer wall of the driving plate 10 , and ends of the plurality of support columns are commonly connected to a cleaning ring 39 , and a cleaning mechanism is disposed inside the cleaning ring 39 .
[0029] The cleaning mechanism includes an inner groove 35 opened on both sides of the cleaning ring 39, and a scraper 36 is slidably connected inside the inner groove 35. Contact springs 34 are fixedly connected on both sides of the scraper 36, and one end of the contact spring 34 away from the scraper 36 is fixedly connected to the inner wall of the inner groove 35.
[0030] Triggering members 37 are fixedly connected to both sides of the cleaning ring 39 , and an alarm 38 corresponding to the triggering members 37 is arranged on the scraper 36 .
[0031] In this embodiment, if a heavier weight 3 is used for calibration, the same as the above principle, when the heavy weight 3 enters the placement slot 13, it will press the support plate 25 downward to overcome the elastic force of the pressing spring 24 and move downward. When the support plate 25 pushes the multiple pressure rods 26 to move downward, the contact wheel 27 will follow the inclined edge of the inclined convex part 31 to pull the multiple sliding rods 32 toward the middle of the driving plate 10. When the limit rod 12 moves toward the middle part of the driving plate 10, it will pull the side through the contact frame 30. The rod 23 and the push plate 11 move toward the middle part of the drive plate 10. When the push plate 11 moves toward the placement groove 13, the contact distance between the roller contacting the end of the protrusion 18 and the push plate 11 becomes farther than before. Therefore, when the roller contacting the end of the protrusion 18 moves to the bottom position of the push plate 11, the bevel of the push plate 11 will push the pulling plate 14 and the clamping plate 15 to separate from the clamping of the weight 3. At this time, the heavier weight 3 will also separate from the drive plate 10, and the tensioner 4 will be calibrated by its own gravity.
[0032] Referring to the above principle, when the driving plate 10 carries weights 3 of different weights, the position of releasing the weight 3 is also different. When a lighter weight 3 is carried for calibration, the position of releasing the weight 3 will be higher, because the lighter weight 3 generates less tension. When the weight 3 pulls the pull rope 5 by its own gravity, under the action of the elastic element inside the tensioner 4, the pull rope 5 will pull the lighter weight 3 to stay at a higher position. When the driving plate 10 carries a heavier weight 3, the position of releasing the weight 3 will be lower during calibration, because the heavier weight 3 generates greater tension. The greater tension will overcome the elastic force generated by the elastic element inside the tensioner 4, allowing the pull rope 5 to extend a greater distance, thereby staying at the bottom of the device body 1. By carrying the weight 3, the weight 3 is prevented from falling quickly to impact the tensioner 4, thereby affecting the measurement and calibration accuracy of the tensioner 4.
[0033] When the weight 3 leaves and enters the placement groove 13, the scraper 36 will scrape off impurities such as dust on the surface of the weight 3. When the scraper 36 scrapes off impurities on the surface of the weight 3, if there are impurities that are difficult to clean, such as rust, remaining on the surface of the weight 3, the rust will block the scraper 36. During the movement of the weight 3, the scraper 36 will be driven to move synchronously by the stubborn rust until the alarm 38 on the scraper 36 contacts the trigger part 37. When the alarm 38 contacts the trigger part 37, the alarm 38 will sound an alarm to remind you to replace the weight 3. By cleaning the surface of the weight 3, the measurement calibration accuracy can be improved.
[0034] It should be noted that the elastic force of the return spring 29 is greater than the elastic force of the pressure spring 22 , so when the contact protrusion 18 moves downward and contacts the inclined surface of the push plate 11 , it cannot push the push plate 11 to move.
[0035] It should be noted that, referring to the above principle, when the threaded rod 7 rotates at a constant speed to move the driving plate 10 downward, the tension generated by the driving plate 10 pulling the pull rope 5 through the weight 3 is rated. At this time, the tension record of the tensioner 4 can be observed to perform dynamic tension calibration on the tensioner 4.
[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tensile measuring instrument calibration device, comprising a device body (1), characterized in that: A bracket (2) is fixedly connected to the outer wall of the device body (1), a tensioner (4) is installed on the bracket (2), a pull rope (5) is installed at the bottom of the tensioner (4), and a hook is provided at the bottom of the pull rope (5). Side grooves (6) are fixedly connected to both sides of the device body (1), and threaded rods (7) are rotatably connected inside the two side grooves (6). A driving motor (8) is provided at one end of the two threaded rods (7), and a belt (9) is sleeved between the ends of the threaded rods (7) on both sides. A driving plate (10) is threadedly sleeved on the outer walls of the two threaded rods (7). The driving plate (10) is provided with a placement groove (13), a weight (3) is installed inside the placement groove (13), and a hanging ring is provided on the weight (3). A plurality of slide grooves (21) are provided on both sides of the driving plate (10), and a pusher (16) is slidably connected inside the plurality of slide grooves (21). A pressure spring (22) is fixedly connected to the outer wall of the pusher (16), and the other end of the pressure spring (22) is fixedly connected to the inner wall of the slide groove (21). The ends of the plurality of pushers (16) are commonly connected to a clamping plate (15), and a stretching mechanism is provided on the clamping plate (15).
2. A tension measuring instrument calibration device according to claim 1, characterized in that: The stretching mechanism comprises a pulling plate (14) arranged on a clamping plate (15), an inner rail (17) being provided inside the pulling plate (14), a contact protrusion (18) being fixedly connected to the outer wall of the pulling plate (14), a roller being provided at the end of the contact protrusion (18), bottom grooves (19) being provided on both sides of the bottom of the device body (1), a push plate (11) being slidably connected inside the bottom groove (19), a limiting rod (12) being fixedly connected to both sides of the driving plate (10), an upper end of the push plate (11) being slidably sleeved on the outer wall of the limiting rod (12), a return spring (20) being fixedly connected to the outer wall of the push plate (11), an end of the return spring (20) away from the push plate (11) being fixedly connected to the outer wall of the bottom groove (19), and an upper end of the push plate (11) being slidably located inside the inner rail (17).
3. A tension measuring instrument calibration device according to claim 1, characterized in that: A support plate (25) is slidably connected to the interior of the placement groove (13), and pressure rods (26) are fixedly connected to both sides of the bottom of the support plate (25), and the two pressure rods (26) both penetrate to the outside of the placement groove (13).
4. A tension measuring instrument calibration device according to claim 3, characterized in that: A pressing spring (24) is sleeved on one side of the pressure rod (26) located inside the placement groove (13); the other end of the pressing spring (24) is fixedly connected to the outer wall of the support plate (25); and one end of the support plate (25) located outside the placement groove (13) is rotatably connected to a contact wheel (27).
5. A tension measuring instrument calibration device according to claim 2, characterized in that: A side rod (23) is fixedly connected to the outer wall of the push plate (11), and mounting members (28) are fixedly connected to both sides of the bottom of the drive plate (10). A slide rod (32) is slidably connected inside the mounting member (28), and a contact frame (30) is provided at the end of the slide rod (32). The contact frame (30) is slidably sleeved on the outer wall of the side rod (23), and a pulley (33) is provided inside the contact frame (30). The pulley (33) is in rolling contact with the outer wall of the side rod (23).
6. A tension measuring instrument calibration device according to claim 5, characterized in that: A return spring (29) is fixedly connected to the outer side wall of the contact frame (30), and one end of the return spring (29) away from the contact frame (30) is fixedly connected to the outer side wall of the mounting member (28).
7. A tension measuring instrument calibration device according to claim 5, characterized in that: One end of the slide bar (32) away from the contact frame (30) is fixedly connected to an inclined convex part (31), and the inclined convex part (31) is in rolling contact with the contact wheel (27).
8. A tension measuring instrument calibration device according to claim 1, characterized in that: A plurality of support columns are fixedly connected to the outer wall of the driving plate (10), the ends of the plurality of support columns are commonly connected to a cleaning ring (39), and a cleaning mechanism is provided inside the cleaning ring (39).
9. A tension measuring instrument calibration device according to claim 8, characterized in that: The cleaning mechanism comprises inner grooves (35) formed on both sides of a cleaning ring (39); a scraper (36) is slidably connected to the interior of the inner groove (35); contact springs (34) are fixedly connected to both sides of the scraper (36); and one end of the contact spring (34) away from the scraper (36) is fixedly connected to the inner side wall of the inner groove (35).
10. A tension measuring instrument calibration device according to claim 9, characterized in that: Triggering members (37) are fixedly connected to both sides of the cleaning ring (39), and an alarm (38) corresponding to the triggering member (37) is provided on the scraper (36).