Load loading mechanism of mechanical measuring instrument

Abstract

The utility model discloses a load loading mechanism of a mechanical measuring instrument, and relates to the technical field of load loading devices. The device comprises a shell, wherein a fixing mechanism and a loading mechanism are arranged on the shell; the fixing mechanism comprises a fixing assembly and a metering assembly, the fixing assembly comprises a bearing cylinder fixedly connected to the shell, the bearing cylinder is slidably connected with limiting blocks, the two limiting blocks are fixedly connected with springs, the bearing cylinder is fixedly connected with a top block, and the ends, away from each other, of the two rectangular rods extend to the outer wall of the bearing cylinder. According to the utility model, through the fixing mechanism, the elastic acting force of the spring is utilized to drive the clamping block to fixedly clamp the hook of the tension electronic scale between the top block and the clamping block, so that the situation that the tension electronic scale falls off and is damaged due to the sudden increase or decrease of the acting force when the tension electronic scale is loaded is avoided; the stable operation of the metering test of the device is ensured to a certain extent, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of load loading devices, in particular to a load loading mechanism of a mechanical measuring instrument. Background Art

[0002] Mechanical metrology instruments refer to instruments and equipment used to measure, calibrate and evaluate mechanical quantities (such as force, pressure, torque, acceleration, deformation, etc.) and other physical quantities related to mechanical properties. These instruments are widely used in materials science, mechanical manufacturing, civil engineering, aerospace, experimental scientific research and other fields, and play an important role. They provide a basis for accurately evaluating and verifying the mechanical properties of materials, structures and mechanical components. The load-loading mechanism of mechanical metrology instruments is mainly used to simulate and apply a known force or load in order to accurately measure and evaluate the mechanical properties or other mechanical parameters of an object.

[0003] However, the structure of some load loading mechanisms used for tension scales is relatively simple. Mechanical measuring instruments are usually hung on the load loading device in a hanging manner, but the hanging position of the instrument is not fixed. As a result, when measuring and testing the instrument, there may be an excessive force that pulls the instrument down, or the force may be suddenly removed, causing the instrument to rebound and fall. Utility Model Content

[0004] The purpose of the utility model is to provide a load loading mechanism for a mechanical measuring instrument. By providing a fixing mechanism, the elastic force of a spring is utilized to drive a clamping block to fix and clamp a hook of a tension electronic scale between a top block and the clamping block, thereby solving the problem that an excessive force may pull the instrument down or the force may be suddenly withdrawn, causing the instrument to rebound and fall.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a load loading mechanism of a mechanical measuring instrument, comprising a shell, on which a fixing mechanism and a loading mechanism are arranged;

[0007] The fixing mechanism includes a fixing component and a metering component. The fixing component includes a receiving tube fixedly connected to the top surface of the outer shell. The inner wall of the receiving tube is slidably connected to two limit blocks. The two limit blocks are fixedly connected to a spring on one side away from each other. The two limit blocks are fixedly connected to a rectangular rod on one side away from each other. The front end and the rear end of the receiving tube are fixedly connected to a top block. The ends of the two rectangular rods away from each other extend to the outer wall of the receiving tube.

[0008] Furthermore, the metering assembly includes rectangular holes opened on the side of the two top blocks away from each other, the ends of the two rectangular rods away from each other are fixedly connected to clamping blocks, and a tension electronic scale is arranged between the top block and the clamping block on the front side.

[0009] Furthermore, the ends of the two springs that are away from each other are fixedly connected to the inner wall of the receiving tube, the sides of the two limit blocks that are away from each other are fixedly connected to a rectangular rod, and the outer walls of the two rectangular rods are slidably connected to the inner wall of the rectangular hole.

[0010] Furthermore, the loading mechanism includes a rotating assembly and a loading assembly, the rotating assembly includes a groove opened on the inner wall of the shell, the inner wall of the groove is rotatably connected to a rotating shaft, and the outer wall of the rotating shaft is fixedly connected to a first bevel gear.

[0011] Furthermore, the right end of the rotating shaft extends to the right side of the housing, the outer wall of the rotating shaft is fixedly connected to a limiting ring, and the right end of the rotating shaft is fixedly connected to a rotating block.

[0012] Furthermore, the loading assembly includes a slide groove opened on the inner wall of the outer shell, the inner wall of the slide groove is rotatably connected to a threaded rod, the top end of the threaded rod extends to the inner wall of the groove and is fixedly connected to a second bevel gear, the second bevel gear is meshed with the first bevel gear, and the outer wall of the threaded rod is threadedly connected to a slider.

[0013] Furthermore, the outer wall of the slider is slidably connected to the inner wall of the slide groove, the front and back sides of the slider are fixedly connected to pull rods, the bottom surface of the shell is fixedly connected to a base, and the top surface of the base is provided with a plurality of mounting holes.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting up a fixing mechanism, the elastic force of the spring is used to drive the clamping block to clamp the hook of the tension electronic scale between the top block and the clamping block, so as to avoid the tension electronic scale falling and being damaged due to the sudden increase or decrease of the force when the load is loaded. To a certain extent, it ensures the smooth measurement and testing of the device and improves the practicality of the device.

[0016] 2. By setting up the loading mechanism, the thread on the threaded rod is used to convert the rotational force into a tensile force acting on the tensile electronic scale, thus completing the load loading process. Two pull rods are set up to cooperate with the fixing mechanism to fix the two tensile electronic scales, and synchronous comparative loading tests are performed, which is convenient for adjustment according to the comparative data of the two tensile electronic scales, further improving the practicality of the device;

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a rear view structural diagram of the utility model;

[0021] Figure 3 This is a front cross-sectional structural schematic diagram of the utility model;

[0022] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of the utility model;

[0023] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Shell; 2. Fixing mechanism; 3. Loading mechanism; 21. Receiver tube; 22. Limit block; 23. Spring; 24. Rectangular rod; 25. Top block; 26. Rectangular hole; 27. Clamp block; 28. Tension electronic scale; 31. Groove; 32. Rotating shaft; 33. First bevel gear; 34. Limiting ring; 35. Rotating block; 36. Slide groove; 37. Threaded rod; 38. Second bevel gear; 39. Slider; 310. Pull rod; 311. Base; 312. Mounting hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 As shown, the utility model is a load loading mechanism of a mechanical measuring instrument, comprising a housing 1, on which a fixing mechanism 2 and a loading mechanism 3 are arranged;

[0028] The fixing mechanism 2 includes a fixing component and a metering component. The fixing component includes a receiving tube 21 fixedly connected to the top surface of the outer shell 1. Two limit blocks 22 are slidably connected to the inner wall of the receiving tube 21. The two limit blocks 22 are fixedly connected to a spring 23 on the side away from each other. The two limit blocks 22 are fixedly connected to a rectangular rod 24 on the side away from each other. The front end and the end of the receiving tube 21 are fixedly connected to a top block 25. The ends of the two rectangular rods 24 away from each other extend to the outer wall of the receiving tube 21.

[0029] Among them Figure 3 , Figure 4 and Figure 5 As shown, the metering assembly includes rectangular holes 26 that are opened on the side of the two top blocks 25 away from each other, the ends of the two rectangular rods 24 away from each other are fixedly connected to the clamping blocks 27, and a tension electronic scale 28 is arranged between the front top block 25 and the clamping block 27. The ends of the two springs 23 away from each other are fixedly connected to the inner wall of the receiving tube 21, and the sides of the two limit blocks 22 away from each other are fixedly connected to the rectangular rods 24, and the outer walls of the two rectangular rods 24 are slidably connected to the inner wall of the rectangular hole 26.

[0030] By setting up the fixing mechanism 2, the elastic force of the spring 23 is utilized to drive the clamping block 27 to fix the hook of the tension electronic scale 28 between the top block 25 and the clamping block 27, thereby preventing the tension electronic scale 28 from falling and being damaged due to a sudden increase or decrease in the force when the load is being loaded. This ensures the smooth progress of the measurement test of the device to a certain extent and improves the practicability of the device.

[0031] Among them Figure 2 , Figure 3 and Figure 4 As shown, the loading mechanism 3 includes a rotating assembly and a loading assembly, the rotating assembly includes a groove 31 opened on the inner wall of the shell 1, the inner wall of the groove 31 is rotatably connected with a rotating shaft 32, the outer wall of the rotating shaft 32 is fixedly connected with a first bevel gear 33, the right end of the rotating shaft 32 extends to the right side of the shell 1, the outer wall of the rotating shaft 32 is fixedly connected with a limiting ring 34, and the right end of the rotating shaft 32 is fixedly connected with a rotating block 35, the loading assembly includes a slide groove 36 opened on the inner wall of the shell 1, the inner wall of the slide groove 36 is rotatably connected with a threaded rod 37, the top of the threaded rod 37 extends to the inner wall of the groove 31 and is fixedly connected with a second bevel gear 38, the second bevel gear 38 is meshed with the first bevel gear 33, the outer wall of the threaded rod 37 is threadedly connected with a slider 39, the outer wall of the slider 39 is slidably connected to the inner wall of the slide groove 36, the front and back sides of the slider 39 are fixedly connected with a pull rod 310, the bottom surface of the shell 1 is fixedly connected with a base 311, and the top surface of the base 311 is provided with a plurality of mounting holes 312.

[0032] By setting up the loading mechanism 3, it is possible to utilize the threads on the threaded rod 37 to convert the rotational force into a tensile force acting on the tensile electronic scale 28, thereby completing the load loading process. Two pull rods 310 are set to cooperate with the fixing mechanism 2 to fix the two tensile electronic scales 28, and perform a synchronous comparative loading test, which facilitates adjustment according to the comparative data of the two tensile electronic scales 28, thereby further improving the practicability of the device.

[0033] A specific application of this embodiment is: the tension electronic scale 28, also known as an electronic tensile gauge, is an instrument used to measure the tension or thrust of an object. It is generally widely used in material testing, quality control, packaging, industrial production and other fields. When an external force acts on the measuring part of the scale, the sensor will undergo physical changes, and this change is proportional to the applied force. The resistance strain gauge in the sensor will undergo a slight deformation under the action of the external force, causing its resistance value to change, converting physical signals such as deformation and charge into electrical signals. By measuring the change in resistance, the applied force can be calculated.

[0034] By setting the fixing mechanism 2, the staff pulls the clamping block 27, and drives the limit block 22 to slide in the receiving tube 21 through the rectangular rod 24. The limit block 22 compresses the spring 23, so that the spring 23 is in a compressed state. Then the top of the tension electronic scale 28 is hung on the exposed rectangular rod 24, and the clamping block 27 is released. Under the elastic reset action of the spring 23, the limit block 22 is pushed to slide toward the center. The limit block 22 drives the clamping block 27 through the rectangular rod 24 to clamp and fix the suspension of the tension electronic scale 28 between the clamping block 27 and the top block 25. The rectangular rod 24 and the rectangular hole 26 are set to be rectangular, which plays a role in the sliding of the rectangular rod 24. The limiting treatment prevents the rectangular rod 24 from rotating and deviating when sliding, and drives the top of the clamp block 27 to expose the fixing hook of the tension electronic scale 28 downward, wherein two clamp blocks 27 are provided for hanging two identical tension electronic scales 28, which is convenient for comparative measurement, and realizes the use of the elastic force of the spring 23 to drive the clamp block 27 to fix the hook of the tension electronic scale 28 between the top block 25 and the clamp block 27, so as to prevent the tension electronic scale 28 from falling and being damaged due to the sudden increase or decrease of the force when the load is loaded, thereby ensuring the smooth measurement test of the device to a certain extent and improving the practicability of the device.

[0035] By setting the loading mechanism 3, the staff first fixes the base 311 on the horizontal plane through the plurality of mounting holes 312, and then hooks the pull hook on the output end of the tension electronic scale 28 to the pull rod 310. After that, the staff can manually apply a constant rotational force to the rotating block 35, or install a motor or other rotational force applying device to engage the rotating block 35 to complete the rotation. The rotating rotating block 35 drives the first bevel gear 33 to rotate through the rotating shaft 32. Since the first bevel gear 33 is engaged with the second bevel gear 38, the first bevel gear 33 drives the threaded rod 37 to rotate synchronously by rotating the second bevel gear 38. Since the slider 39 is threadedly connected to the threaded rod 37, the rotation of the threaded rod 37 drives the slider 39 to slide up and down in the slide groove 36 along the thread, and the slider 39 drives the two pull rods 310 to slide up and down. The pull rod 310 moves downward to pull the hook of the tension electronic scale 28, applying tension to the tension electronic scale 28, so that the tension electronic scale 28 displays mechanical data, cooperates with the fixing mechanism 2 to fix and suspend the two tension electronic scales 28, and the slider 39 drives the two pull rods 310 to apply the same tension to the two tension electronic scales 28, so as to compare the changes and differences between the two tension electronic scales 28, so as to facilitate further testing of the measurement accuracy of the tension electronic scale 28, and realizes the use of the threads on the threaded rod 37 to convert the rotational force into tension to act on the tension electronic scale 28, so as to complete the load loading process, and sets two pull rods 310, cooperates with the fixing mechanism 2 to fix the two tension electronic scales 28, so as to perform synchronous comparative loading test, so as to facilitate adjustment according to the comparative data of the two tension electronic scales 28, and further improve the practicability of the device.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that those skilled in the art can well understand and use the utility model.

Claims

1. A load loading mechanism for a mechanical measuring instrument, comprising a housing (1), wherein a fixing mechanism (2) and a loading mechanism (3) are arranged on the housing (1), characterized in that: The fixing mechanism (2) comprises a fixing component and a metering component, wherein the fixing component comprises a receiving tube (21) fixedly connected to the top surface of the housing (1), the inner wall of the receiving tube (21) being slidably connected to two limit blocks (22), the two limit blocks (22) being fixedly connected to a spring (23) on the side away from each other, the two limit blocks (22) being fixedly connected to a rectangular rod (24) on the side away from each other, the front end and the rear end of the receiving tube (21) being fixedly connected to a top block (25), and the ends of the two rectangular rods (24) being away from each other both extending to the outer wall of the receiving tube (21).

2. A load loading mechanism for a mechanical measuring instrument according to claim 1, characterized in that: The metering assembly comprises rectangular holes (26) each opened on a side of the two top blocks (25) away from each other, a clamping block (27) is fixedly connected to one end of the two rectangular rods (24) away from each other, and a tension electronic scale (28) is provided between the top block (25) and the clamping block (27) at the front side.

3. The load loading mechanism of a mechanical measuring instrument according to claim 2, characterized in that: The ends of the two springs (23) that are away from each other are fixedly connected to the inner wall of the receiving tube (21), the sides of the two limit blocks (22) that are away from each other are fixedly connected to a rectangular rod (24), and the outer walls of the two rectangular rods (24) are slidably connected to the inner wall of the rectangular hole (26).

4. A load loading mechanism for a mechanical measuring instrument according to claim 3, characterized in that: The loading mechanism (3) comprises a rotating assembly and a loading assembly, the rotating assembly comprising a groove (31) formed on the inner wall of the housing (1), the inner wall of the groove (31) being rotatably connected to a rotating shaft (32), and the outer wall of the rotating shaft (32) being fixedly connected to a first bevel gear (33).

5. The load loading mechanism of a mechanical measuring instrument according to claim 4, characterized in that: The right end of the rotating shaft (32) extends to the right side of the housing (1); the outer wall of the rotating shaft (32) is fixedly connected to a limiting ring (34); and the right end of the rotating shaft (32) is fixedly connected to a rotating block (35).

6. The load loading mechanism of a mechanical measuring instrument according to claim 5, characterized in that: The loading assembly comprises a slide groove (36) formed on the inner wall of the housing (1); the inner wall of the slide groove (36) is rotatably connected to a threaded rod (37); the top end of the threaded rod (37) extends to the inner wall of the groove (31) and is fixedly connected to a second bevel gear (38); the second bevel gear (38) is meshed with the first bevel gear (33); and the outer wall of the threaded rod (37) is threadedly connected to a slider (39).

7. A load loading mechanism for a mechanical measuring instrument according to claim 6, characterized in that: The outer wall of the slider (39) is slidably connected to the inner wall of the slide groove (36); the front and back sides of the slider (39) are fixedly connected to pull rods (310); the bottom surface of the housing (1) is fixedly connected to a base (311); and the top surface of the base (311) is provided with a plurality of mounting holes (312).

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