Hydraulic oil cylinder thrust measuring assembly

Abstract

The utility model relates to the technical field of thrust measurement, and discloses a hydraulic oil cylinder thrust measuring assembly which comprises a shell, a measuring assembly is arranged at the bottom of the inner side of the shell, two connecting rods are connected to the inner sides of the two ends of the shell in a sliding mode, and fixing assemblies are arranged on the inner sides of the connecting rods. Height adjusting assemblies are arranged on the outer sides of the two ends of the shell; the measuring assembly comprises a measuring shell, the bottom of the measuring shell is fixedly connected to the inner side of the shell, a plurality of springs are fixedly connected to the inner side of the bottom of the measuring shell, positioning plates are fixedly connected to the tops of the springs, and the positioning plates are slidably connected to the inner side of the measuring shell. According to the utility model, measurement is carried out by using Hooke's law according to the direct proportion relation between the compression amount of the spring and the thrust, the thrust value can be directly read after the scale marks are calibrated, the thrust of the hydraulic oil cylinder can be accurately determined, and the precise control of the related engineering or mechanical operation process is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of thrust measurement, in particular to a hydraulic oil cylinder thrust measurement component. Background Art

[0002] The hydraulic cylinder thrust measurement assembly is a device used to accurately measure the thrust generated by the hydraulic cylinder. By accurately measuring the thrust of the hydraulic cylinder, it can promptly detect abnormal thrust conditions, prevent equipment damage, failures, and even safety accidents caused by excessive or insufficient thrust, and ensure that the equipment operates within a safe thrust range.

[0003] Currently, the method for measuring the thrust of hydraulic cylinders is usually to connect a hydraulic sensor to the oil line from the hydraulic pump to the hydraulic cylinder. The pressure directly acts on the sensor's diaphragm, strain gauge, piezoelectric crystal and other sensitive elements, causing these elements to produce micro-displacements, resistance changes, charge generation, etc. that are proportional to the medium pressure. These changes are then detected by electronic circuits and converted and output into a standard signal corresponding to this pressure, thereby realizing the measurement of the hydraulic system pressure.

[0004] At present, although the pressure can be measured by connecting a hydraulic sensor to the oil line from the hydraulic pump to the hydraulic cylinder, changes in the temperature, viscosity and other characteristics of the hydraulic oil will have a certain impact on the measurement results. Temperature changes will cause the volume of the hydraulic oil to expand or contract, thereby affecting the accuracy of the pressure measurement; viscosity changes will affect the flow characteristics of the hydraulic oil, thereby causing delays or fluctuations in pressure transmission, resulting in errors in the measured pressure value. If the sensor is not installed properly, additional errors will be introduced or the sensor will be damaged, affecting the accuracy and reliability of the measurement. Therefore, a hydraulic cylinder thrust measurement component is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the present invention provides a hydraulic cylinder thrust measurement assembly, which aims to improve the problem in the prior art that the hydraulic cylinder thrust cannot be accurately measured.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A hydraulic cylinder thrust measurement assembly comprises a housing, a measuring assembly is provided on the inner bottom of the housing, two connecting rods are slidably connected to the inner sides of both ends of the housing, a plurality of fixing assemblies are provided on the inner sides of the connecting rods, and height adjustment assemblies are provided on the outer sides of both ends of the housing;

[0008] The measuring assembly includes a measuring shell, the bottom of the measuring shell is fixedly connected to the inner side of the housing, a plurality of springs are fixedly connected to the inner side of the bottom of the measuring shell, the tops of the springs are fixedly connected to a positioning plate, the positioning plate is slidably connected to the inner side of the measuring shell, a transparent film is fixedly connected to the inner side of the end of the measuring shell, and a plurality of scale lines are fixedly connected to the outer side of the end of the measuring shell;

[0009] As a further description of the above technical solution:

[0010] The fixing assembly includes two electric push rods, both of which are fixedly connected to the inner side of the middle part of the connecting rod, and the inner sides of the two ends of the connecting rods are fixedly connected to the hollow rods, and the ends of the two electric push rods are fixedly connected to the inner sides of both ends of the hollow rods. The inner side of the middle part of the connecting rod is rotatably connected to an articulated frame 1, and the inner side of the middle part of the connecting rod is also rotatably connected to an articulated frame 2. The other end of the articulated frame 1 is rotatably connected to the inner side of the end of the hollow rod, and the other end of the articulated frame 2 is rotatably connected to the inner side of the other end of the hollow rod. The ends of the articulated frame 1 and the articulated frame 2 are both fixedly connected to a fixing rod;

[0011] As a further description of the above technical solution:

[0012] The height adjustment assembly includes a shell, the shell is fixedly connected to the outside of the housing, the inner sides of both ends of the shell are rotatably connected to positioning rods, the outer sides of the positioning rods are fixedly connected to worm wheels, the outer sides of the positioning rods are also fixedly connected to gears, the inner side of the shell is rotatably connected to a worm, the worm wheel is meshingly connected to the outer side of the worm, the inner side of the shell is slidably connected to a gear plate, and the gear is meshingly connected to the outer side of the gear plate;

[0013] As a further description of the above technical solution:

[0014] The plurality of fixed rods are rotatably connected to the inner sides of both ends of the hollow rod, the inner sides of the ends of the plurality of fixed rods are fixedly connected to arc-shaped fixed blocks, the inner side of the housing is provided with a hydraulic cylinder body, and the inner sides of the plurality of arc-shaped fixed blocks are fixedly connected to the outer sides of the hydraulic cylinder body;

[0015] As a further description of the above technical solution:

[0016] The end of the hydraulic cylinder body is slidably connected to the top of the positioning plate, and the end of the hydraulic cylinder body is slidably connected to the inner side of the measuring shell;

[0017] As a further description of the above technical solution:

[0018] The bottom sides of the ends of the two hollow rods are fixedly connected to support rods, the bottoms of the multiple support rods are fixedly connected to sliding rods, the two ends of the sliding rods are slidably connected to the inner sides of the two ends of the shell, and the bottom sides of the middle parts of the two sliding rods are fixedly connected to the top of the gear plate;

[0019] As a further description of the above technical solution:

[0020] The inner sides of the two shells are rotatably connected to a hand crank, and the hand crank is fixedly connected to the inner side of the end of the worm;

[0021] As a further description of the above technical solution:

[0022] A transparent film is fixedly connected to the inner side of the end of the measuring shell.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the present invention, Hooke's law is used to measure the proportional relationship between spring compression and thrust. The thrust value can be directly read after calibration, which can accurately determine the thrust of the hydraulic cylinder. It provides reliable data support for the precise grasp and subsequent analysis of equipment operating parameters, and helps to accurately control related engineering or mechanical operation processes.

[0025] 2. In the utility model, the worm is first driven to rotate by means of a hand crank, which in turn drives the worm wheel, the positioning rod and the gear to rotate, and finally the tooth block plate drives the sliding rod to rise and fall, thereby flexibly adjusting the height of the measuring assembly. Then, under the action of the electric push rod driving the hollow rod, the articulated frame 1 and the articulated frame 2 are used to drive the fixed rod to rotate, so that the arc-shaped fixed block tightly fixes the hydraulic cylinder body, so that the measuring assembly can adapt to hydraulic cylinders with different installation height requirements, effectively preventing the hydraulic cylinder from being displaced or shaking due to the thrust during operation, thereby ensuring the accuracy and stability of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of a hydraulic cylinder thrust measurement assembly proposed by the utility model;

[0027] Figure 2 This is a structural schematic diagram of an arc-shaped fixing block of a hydraulic cylinder thrust measurement assembly proposed by the utility model;

[0028] Figure 3 This is a structural schematic diagram of the scale lines of a hydraulic cylinder thrust measurement assembly proposed by the present invention;

[0029] Figure 4 This is a structural schematic diagram of a slide rod of a hydraulic cylinder thrust measurement assembly proposed by the present invention;

[0030] Figure 5 This is a structural schematic diagram of a worm gear of a hydraulic cylinder thrust measurement assembly proposed by the utility model.

[0031] Legend:

[0032] 1. Housing; 2. Hydraulic cylinder body; 3. Connecting rod; 4. Support rod; 5. Sliding rod; 6. Hand crank; 7. Outer shell; 8. Measuring shell; 9. Transparent film; 10. Articulated frame 1; 11. Articulated frame 2; 12. Electric push rod; 13. Hollow rod; 14. Fixed rod; 15. Arc-shaped fixed block; 16. Scale line; 17. Positioning plate; 18. Spring; 19. Tooth plate; 20. Worm gear; 21. Gear; 22. Positioning rod; 23. Worm. DETAILED DESCRIPTION

[0033] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figure 1 and Figure 3 The utility model provides an embodiment of a hydraulic cylinder thrust measuring assembly, comprising a housing 1, a measuring assembly being provided on the inner bottom of the housing 1, two connecting rods 3 being slidably connected to the inner sides of both ends of the housing 1, a fixing assembly being provided on the inner sides of the multiple connecting rods 3, and a height adjustment assembly being provided on the outer sides of both ends of the housing 1;

[0035] The measuring assembly includes a measuring housing 8, the bottom of which is fixedly connected to the inside of the housing 1. Multiple springs 18 are fixedly connected to the inside of the bottom of the measuring housing 8. The tops of the springs 18 are each fixedly connected to a positioning plate 17, which is slidably connected to the inside of the measuring housing 8. A transparent membrane 9 is fixedly connected to the inside of the end of the measuring housing 8, and multiple scale lines 16 are fixedly connected to the outside of the end of the measuring housing 8. Measurements are made based on the proportional relationship between the compression of the springs 18 and the thrust. The scale lines 16 are calibrated to directly read the thrust value, enabling a relatively accurate determination of the hydraulic cylinder's thrust. This provides reliable data support for precise monitoring and subsequent analysis of equipment operating parameters, facilitating precise control of related engineering or mechanical operations. The end of the hydraulic cylinder body 2 is slidably connected to the top of the positioning plate 17, which is then slidably connected to the inside of the measuring housing 8. The sliding connection between the end of the hydraulic cylinder body 2, the inside of the measuring housing 8, and the top of the positioning plate 17 makes the measuring assembly well-suited for hydraulic cylinders of varying specifications and models. This eliminates the need for extensive modification or adjustment of the measuring assembly, significantly improving its versatility and applicability. A transparent film 9 is fixedly attached to the inner side of the end of the measuring housing 8. The combination of the transparent film 9 and the scale lines 16 on the outer side of the end of the measuring housing 8 provides the operator with an intuitive and convenient way to observe measurements.

[0036] Reference Figure 1 and Figure 2 The fixing assembly includes two electric push rods 12, both of which are fixedly connected to the inner side of the middle portion of the connecting rod 3. The inner sides of the ends of the two connecting rods 3 are fixedly connected to hollow rods 13. The ends of the two electric push rods 12 are fixedly connected to the inner sides of both ends of the hollow rod 13. The inner side of the middle portion of the connecting rod 3 is rotatably connected to an articulated frame 10, and the inner side of the middle portion of the connecting rod 3 is also rotatably connected to an articulated frame 2 11. The other end of the articulated frame 10 is rotatably connected to the inner side of the end of the hollow rod 13, and the other end of the articulated frame 2 11 is rotatably connected to the inner side of the other end of the hollow rod 13. The ends of the articulated frames 10 and 11 are both fixedly connected to a fixing rod 14. By arranging two connecting rods 3 on each side of the housing 1, the fixing assemblies on each connecting rod 3 work together to form a multi-point fixing method for fixing the hydraulic cylinder body 2. Multiple arc-shaped fixing blocks 15 are tightly attached to the outside of the hydraulic cylinder body 2 from different positions. Compared to single-point fixing or simple double-sided fixing methods, they can more evenly distribute the various forces generated by the hydraulic cylinder during operation. Multiple fixing rods 14 are rotatably connected to the inner sides of both ends of the hollow rod 13. The inner sides of the ends of the multiple fixing rods 14 are fixedly connected to the inner sides of the multiple fixing blocks 15. The hydraulic cylinder body 2 is disposed inside the housing 1, and the inner sides of the multiple arc-shaped fixing blocks 15 are fixedly connected to the outer side of the hydraulic cylinder body 2. The inner shape of the arc-shaped fixing blocks 15 is compatible with the outer side of the hydraulic cylinder body 2, achieving a tight fit, further enhancing friction and gripping force, and avoiding measurement errors caused by loose fixation.

[0037] Reference Figure 1 、 Figure 4 and Figure 5The height adjustment component includes a shell 7, which is fixedly connected to the outside of the housing 1. The inner sides of both ends of the shell 7 are rotatably connected to positioning rods 22, the outer sides of the positioning rods 22 are fixedly connected to a worm wheel 20, and the outer sides of the positioning rods 22 are also fixedly connected to a gear 21. The inner side of the shell 7 is rotatably connected to a worm 23, and the worm wheel 20 is meshingly connected to the outer side of the worm 23. The inner side of the shell 7 is slidably connected to a tooth block plate 19, and the gear 21 is meshingly connected to the outer side of the tooth block plate 19. The height adjustment component adopts a transmission coordination method of the worm wheel 20, worm 23 and gear 21, tooth block plate 19. The transmission of the worm wheel 20 and worm 23 has a large transmission ratio, which can effectively slow down the rotation of the hand crank 6, realize precise height adjustment under small angle rotation, and enable the fixed component to achieve precise position change in the vertical direction. The bottom sides of the ends of the two hollow rods 13 are fixedly connected to support rods 4, and the bottoms of the multiple support rods 4 are fixedly connected to slide rods 5. The two ends of the two slide rods 5 are slidably connected to the inner sides of the two ends of the shell 1, and the bottom sides of the middle parts of the two slide rods 5 are fixedly connected to the top of the gear plate 19. The height adjustment component is organically connected through the support rods 4, slide rods 5 and hollow rods 13 and other components, forming an overall structure that works in coordination with the fixed component and the shell 1 of the entire measuring component. It ensures that the entire hydraulic cylinder thrust measurement component can operate stably at different heights, laying the foundation for the smooth implementation of thrust measurement work. The inner sides of the two shells 7 are rotatably connected to the hand crank 6, which is fixedly connected to the inner side of the end of the worm 23. The height adjustment component can be easily controlled by rotating the hand crank 6.

[0038] Working principle: First, the two fixed components are adjusted to the appropriate height through the height adjustment assembly to facilitate the installation of the hydraulic cylinder body 2. Turn the hand crank 6, which drives the worm 23 to rotate. Since the worm 23 is engaged with the worm wheel 20, the rotation of the worm 23 will cause the worm wheel 20 and the positioning rod 22 and gear 21 fixed thereto to rotate. The gear 21 is engaged with the gear plate 19, and the gear plate 19 slides inside the housing 7. The top of the gear plate 19 is connected to the hollow rod 13 through the support rod 4, which in turn drives the slide rod 5 to slide inside the two ends of the housing 1, realizing the lifting and lowering of the entire height adjustment assembly to achieve the appropriate height of the assembly.

[0039] Then, the hydraulic cylinder body 2 is fixed by using the fixing assembly, and the electric push rod 12 is started. The electric push rod 12 pushes the hollow rod 13. Since the articulated frame 10 and the articulated frame 2 11 are rotatably connected to the hollow rod 13 and the connecting rod 3 respectively, the movement of the hollow rod 13 will cause the articulated frame 10 and the articulated frame 2 11 to rotate, thereby driving the fixed rod 14 to rotate. The arc-shaped fixed block 15 at the end of the fixed rod 14 will move inward and be tightly fixed to the outside of the hydraulic cylinder body 2, completing the fixation of the hydraulic cylinder.

[0040] When the hydraulic cylinder body 2 is operating and generating thrust, its end exerts force on the positioning plate 17, which slides inside the measuring housing 8. Since a spring 18 is attached to the bottom of the positioning plate 17, the thrust compresses the spring 18. A transparent film 9 is located inside the end of the measuring housing 8, and a scale line 16 is located on the outside of the end of the measuring housing 8. As the spring 18 compresses, the movement of the positioning plate 17 can be observed through the transparent film 9, and the thrust of the hydraulic cylinder can be determined by comparing it with the scale line 16. The thrust can be calculated from the known spring constant and the observed compression. Furthermore, the scale line 16 can be calibrated in advance, allowing the corresponding thrust value to be directly read.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hydraulic cylinder thrust measurement assembly, comprising a housing (1), characterized in that: A measuring assembly is provided at the bottom inner side of the housing (1); two connecting rods (3) are slidably connected to the inner sides of both ends of the housing (1); a fixing assembly is provided on the inner sides of the plurality of connecting rods (3); and a height adjustment assembly is provided on the outer sides of both ends of the housing (1); The measuring assembly comprises a measuring shell (8), the bottom of the measuring shell (8) is fixedly connected to the inner side of the housing (1), a plurality of springs (18) are fixedly connected to the inner side of the bottom of the measuring shell (8), the tops of the springs (18) are fixedly connected to positioning plates (17), the positioning plates (17) are slidably connected to the inner side of the measuring shell (8), a transparent film (9) is fixedly connected to the inner side of the end of the measuring shell (8), and a plurality of scale lines (16) are fixedly connected to the outer side of the end of the measuring shell (8).

2. A hydraulic cylinder thrust measurement assembly according to claim 1, characterized in that: The fixing assembly includes two electric push rods (12), both of which are fixedly connected to the inner side of the middle part of the connecting rod (3), and the inner sides of the ends of the two connecting rods (3) are fixedly connected to the hollow rod (13), and the ends of the two electric push rods (12) are fixedly connected to the inner sides of both ends of the hollow rod (13), and the inner side of the middle part of the connecting rod (3) is rotatably connected to the first hinge frame (10), and the inner side of the middle part of the connecting rod (3) is also rotatably connected to the second hinge frame (11), and the other end of the first hinge frame (10) is rotatably connected to the inner side of the end of the hollow rod (13), and the other end of the second hinge frame (11) is rotatably connected to the inner side of the other end of the hollow rod (13), and the ends of the first hinge frame (10) and the second hinge frame (11) are both fixedly connected to the fixing rod (14).

3. The hydraulic cylinder thrust measurement assembly according to claim 1, characterized in that: The height adjustment assembly comprises a housing (7), the housing (7) being fixedly connected to the outside of the housing (1), positioning rods (22) being rotatably connected to the inner sides of both ends of the housing (7), a worm wheel (20) being fixedly connected to the outer sides of the positioning rods (22), a gear (21) being also fixedly connected to the outer sides of the positioning rods (22), a worm (23) being rotatably connected to the inner side of the housing (7), the worm wheel (20) being meshedly connected to the outer side of the worm (23), a tooth block plate (19) being slidably connected to the inner side of the housing (7), and the gear (21) being meshedly connected to the outer side of the tooth block plate (19).

4. The hydraulic cylinder thrust measurement assembly according to claim 2, characterized in that: The plurality of fixing rods (14) are rotatably connected to the inner sides of both ends of the hollow rod (13); the inner sides of the ends of the plurality of fixing rods (14) are fixedly connected to arc-shaped fixing blocks (15); a hydraulic cylinder body (2) is provided on the inner side of the housing (1); the inner sides of the plurality of arc-shaped fixing blocks (15) are fixedly connected to the outer sides of the hydraulic cylinder body (2).

5. The hydraulic cylinder thrust measurement assembly according to claim 4, characterized in that: The end of the hydraulic cylinder body (2) is slidably connected to the top of the positioning plate (17), and the end of the hydraulic cylinder body (2) is slidably connected to the inner side of the measuring shell (8).

6. The hydraulic cylinder thrust measurement assembly according to claim 2, characterized in that: The bottom sides of the ends of the two hollow rods (13) are fixedly connected to support rods (4), the bottoms of the multiple support rods (4) are fixedly connected to slide rods (5), both ends of the two slide rods (5) are slidably connected to the inner sides of the two ends of the shell (1), and the bottom sides of the middle parts of the two slide rods (5) are fixedly connected to the top of the tooth block plate (19).

7. The hydraulic cylinder thrust measurement assembly according to claim 3, characterized in that: The inner sides of the two outer shells (7) are rotatably connected to a hand crank (6), and the hand crank (6) is fixedly connected to the inner side of the end of the worm (23).

8. The hydraulic cylinder thrust measurement assembly according to claim 1, characterized in that: A transparent film (9) is fixedly connected to the inner side of the end of the measuring shell (8).

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