Weighing sensor
By designing a weighing sensor containing strain gauge, using the strain data of the rope/sling to achieve weighing, the problem of frequent start and stop of lifting items in the prior art is solved, and the equipment life and weighing accuracy are improved .
Patent Information
- Application Number
- CN202421536508.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The weighing method of existing lifting items requires frequent use of lifting equipment, resulting in easy damage to the equipment and extended working hours.
A weighing sensor is designed to achieve weighing by the strain gauge through the strain data of the rope/sling, and the hanging rope is fixed through the combined structure of the first pillar, the second pillar, the elastic body, the wall, the pressure rod and the protective cover. /Sling, ensures that it is uniformly deformed, concentrates stress, and improves weighing accuracy.
By fixing the suspender rope/sling, avoid frequent start and stop, extend the equipment life, improve weighing accuracy, and achieve accurate detection of weighted objects.
Smart Images
Figure CN222166297U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of weighing, in particular to a weighing sensor for hoisting. Background Art
[0002] The existing method of weighing hoisted items is to hoist the items onto a weighing device through a hoisting device for weighing, and then hoist the items away. This method requires frequent use of the hoisting device for hoisting, which increases working hours, and the hoisting device is easily damaged due to frequent starting and stopping. Utility Model Content
[0003] The utility model aims to provide a weighing sensor, and solves the technical problem of optimizing the weighing method to obtain a weighing structure, realizing weighing through strain gauges, and avoiding the problem of frequent start and stop of the lifting equipment, causing easy damage and extending the working time.
[0004] The weighing sensor comprises a first support, a second support, an elastic body, a holding wall, a pressure rod and a protective cover;
[0005] The first column extends outwardly in a bent shape relative to the elastic body, and has a fixing groove at the position where it fits with the sling / sling; the second column extends outwardly in a bent shape relative to the elastic body, and has a fixing groove at the position where it fits with the sling / sling; the elastic body and the first column and the second column are an integrated structure, and the first column and the second column are located at the two end positions of the elastic body; the embracing wall is located in the middle position of the elastic body, and the above-mentioned embracing wall has two and extends outward along the two sides of the elastic body respectively, and has a through hole for the pressure rod to pass through, a movable groove for the pressure rod to move, and a fixing hole for fixing the force rod, and the above-mentioned movable groove is an arc structure; the pressure rod is arranged in the movable groove or the through hole, and the two end portions of the above-mentioned pressure rod are arranged with anti-drop caps, and the diameter of the anti-drop caps is larger than the groove width of the movable groove and the diameter of the through hole; the protective cover is attached to the strain gauge and fixed on the elastic body.
[0006] The fixing groove is a wide-mouth structure matched with the toothed steel lifting belt or a semicircular arc-mouth structure matched with the steel lifting rope.
[0007] The first support column and the second support column extend laterally outward relative to the elastic body.
[0008] The hugging wall extends longitudinally relative to the elastic body.
[0009] Both ends of the side portions of the first pillar and the second pillar are provided with notch-shaped clamping grooves.
[0010] The elastic body has a notch-shaped transverse structural groove near the second supporting column, and the elastic body has a notch-shaped transverse structural groove near the wall-embracing position.
[0011] A longitudinal pressure concentration groove is provided on the elastic body at a position opposite to the protection cover.
[0012] The protection cover is fixed on the elastic body by screws.
[0013] The protective cover is fixed with a cable, which cooperates with the strain gauge.
[0014] The beneficial effect of the utility model is that by configuring the pressure rod, the rope / sling used to lift the heavy object can be attached to and fixed to the elastic body, so that the rope / sling fits the protective cover, and the protective cover squeezes the strain gauge, and the strain gauge converts the corresponding squeezing data into the weight data of the heavy object. By configuring the first pillar and the second pillar, the rope / sling is fixed at both ends of the pressure rod, ensuring the uniformity of the rope / sling deformation, limiting the displacement of the rope / sling, ensuring that the stress point of the strain gauge remains unchanged, concentrating the strain gauge collection force, improving the accuracy, and using the deformation force of the heavy object to keep the rope / sling vertical during lifting to squeeze the strain gauge, so as to detect the quality of the heavy object. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of a load cell in conjunction with a toothed steel sling;
[0016] Figure 2 yes Figure 1 A schematic diagram of the weighing sensor from another angle;
[0017] Figure 3 yes Figure 1 Schematic diagram of the cooperation between the load cell and the toothed steel sling;
[0018] Figure 4 yes Figure 1 A schematic diagram of another angle of the cooperation between the load cell and the toothed steel sling;
[0019] Figure 5 It is a schematic diagram of a load cell matched with a steel hanging rope;
[0020] Figure 6 yes Figure 5 Schematic diagram of the cooperation between the weighing sensor and the steel hanging rope;
[0021] Figure 7 yes Figure 5 A schematic diagram showing another angle of the cooperation between the load cell and the steel suspension rope;
[0022] In the figure
[0023] 11. First Pillar, 12. Second Pillar;
[0024] 2. Elastomer;
[0025] 3. Wall holding, 31. Through hole, 32. Movable slot, 33. Fixed hole;
[0026] 4. Pressure rod;
[0027] 5. Anti-drop cap;
[0028] 6. Protective cover;
[0029] 71. Fixing slot, 72. Card slot, 73. Structural slot, 74. Stress concentration slot;
[0030] 8. Cables;
[0031] 91. Suspenders, 92. Suspender ropes. DETAILED DESCRIPTION
[0032] Please refer to Figures 1 to 4 The weighing sensor in the figure is mainly designed with a first pillar 11, a second pillar 12, an elastic body 2, a holding wall 3, a pressure rod 4, and a protective cover 6; the first pillar 11 and the second pillar 12 are used to fix the two ends of the toothed sling 91 that cooperates with the entire sensor, the elastic body 2 serves as the main structure of the entire sensor, the holding wall 3 is used to cooperate with the pressure rod 4 to hold and fix the toothed sling 91, that is, the toothed steel belt, and the protective cover 6 is used to protect the strain gauge; in actual applications, other components can be added or the above components can be re-optimized or replaced with existing components.
[0033] The first pillar 11 in the figure is fixed at one end of the elastomer 2 and extends laterally outward relative to the elastomer 2 to form a bent structure, and the position where it cooperates with the toothed sling 91 forms a fixed groove 71 structure with a wide-mouth structure. At both sides of the first pillar 11, that is, at both ends of the side, there is a groove 72 structure that is recessed inward into a notch shape. The groove 72 is used to install parts such as buckles, so that the sensor can be applicable to more types of steel belts.
[0034] The second pillar 12 in the figure is fixed at the other end of the elastomer 2 and arranged opposite to the first pillar 11. The second pillar 12 also extends laterally outward relative to the elastomer 2 to form a bent structure, and the position where it cooperates with the toothed sling 91 forms a fixed groove 71 structure with a wide-mouth structure. At both sides of the second pillar 12, that is, at both ends of the side, there is a card groove 72 structure that is recessed inward into a notch shape. The card groove 72 is used to install parts such as buckles, so that the sensor can be applicable to more types of steel belts.
[0035] The elastic body 2 in the figure is located between the first column and the second column and forms an integrated structure with the two components. The elastic body 2 is designed with a transverse notch-shaped structural groove 73 structure near the left and right sides of the second column, and is also designed with a transverse notch-shaped structural groove 73 structure near the left and right sides of the wall 3. In addition, a longitudinal groove-shaped pressure concentration groove structure is designed in the middle position between the two structural grooves 73. The structural groove 73 concentrates the force brought by the pressure rod 4 in the middle of the elastic body 2, that is, between the structural grooves 73, so that the pressure brought by the upper and lower structural grooves 73 is further concentrated between the two stress concentration grooves 74, that is, the position of the strain gauge, so as to accurately reflect the corresponding stress. The two columns are formed by molds, thereby simplifying the product structure and reducing product costs.
[0036] The holding wall 3 in the figure is located in the middle of the elastic body 2. The holding wall 3 is designed with two and extends longitudinally outward along the two sides of the elastic body 2. The holding wall 3 is designed with a through hole 31 structure for the pressure rod 4 to pass through, and a movable groove 32 structure for the pressure rod 4 to move forward and backward, and a fixing hole 33 structure for fixing the force rod. The through hole 31 and the fixing hole 33 are both circular hole structures for the installation of the pressure rod 4, and the movable groove 32 is an arc-shaped groove structure as the moving track of the pressure rod 4, which is convenient for the introduction and movement of the pressure rod 4. The force rod is a conventional seven-shaped hardware tool. The conventional tool is used to rotate it to drive the pressure rod 4 to move inward to squeeze and fix the sling 91.
[0037] The pressure rod 4 in the figure is a straight rod structure, which is arranged in the movable groove 32 or the through hole 31, and anti-drop caps 5 are installed at the end positions of both ends. The diameter of the anti-drop cap 5 is larger than the groove width of the movable groove 32 and the diameter of the through hole 31, so that the pressure rod 4 is always arranged with the holding wall 3 to prevent it from falling off the holding wall 3. The pressure rod 4 is designed with standard parts, which is convenient for procurement.
[0038] The protective cover 6 in the figure is a conventional hollow box cover structure, which is fixed on the elastomer 2 by screws and fits the strain gauge fixed on the elastomer 2. The protective cover 6 is also fixedly configured with a cable 8, which cooperates with the strain gauge to transmit data to the AD conversion module. The AD conversion module also cooperates with the MCU controller. After conversion processing by the MCU controller, the mass of the object to be hoisted is displayed on the display.
[0039] Please refer to Figures 5 to 7 The difference between this weighing sensor and the above weighing sensor is that it cooperates with the steel suspension rope 92, and the cooperation position is a semicircular arc structure, while other structures remain consistent or similar to the above weighing sensor.
[0040] The specific embodiments described above are only used to explain the present technical solution and are not used to limit the present technical solution. In the description of the present technical solution, it should be noted that the terms such as "upper" and "inner" indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present technical solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present technical solution.
[0041] At the same time, in the description of this technical solution, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed" and "matched" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this technical solution can be understood according to specific circumstances.
[0042] Although embodiments of the present technical solution have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present technical solution, and that the scope of the present technical solution is defined by the appended claims and their equivalents.
Claims
1. A weighing sensor, characterized in that: It comprises a first support (11), a second support (12), an elastic body (2), a wall support (3), a pressure rod (4), and a protective cover (6); The first column extends outwardly in a bent shape relative to the elastic body (2), and has a fixing groove (71) at a position where it fits with the sling (92) / sling (91); the second column extends outwardly in a bent shape relative to the elastic body (2), and has a fixing groove (71) at a position where it fits with the sling (92) / sling (91); the elastic body (2) and the first column and the second column are an integrated structure, and the first column and the second column are located at the end positions of the elastic body (2); the embracing wall (3) is located in the middle of the elastic body (2), and the embracing wall (3) has two embracing walls that are respectively arranged along the elastic body ( The two sides of the holding wall (3) extend outwards, and the holding wall (3) is provided with a through hole (31) for facilitating the passage of the pressure rod (4), a movable groove (32) for facilitating the movement of the pressure rod (4), and a fixing hole (33) for fixing the force rod, wherein the movable groove (32) is an arc-shaped structure; the pressure rod (4) is arranged in the movable groove (32) or the through hole (31), and the two end portions of the pressure rod (4) are provided with anti-drop caps (5), and the diameter of the anti-drop caps (5) is larger than the groove width of the movable groove (32) and the diameter of the through hole (31); and the protective cover (6) is attached to the strain gauge and fixed on the elastic body (2).
2. The weighing sensor according to claim 1, characterized in that: The fixing groove (71) is a wide-mouth structure that matches the toothed steel lifting belt (91) or a semicircular arc-mouth structure that matches the steel lifting rope (92).
3. The weighing sensor according to claim 2, characterized in that: The first support column (11) and the second support column (12) extend laterally outward relative to the elastic body (2).
4. The weighing sensor according to claim 3, characterized in that: The hugging wall (3) extends longitudinally relative to the elastic body (2).
5. The weighing sensor according to claim 4, characterized in that: Both ends of the side portions of the first support column (11) and the second support column (12) are provided with notch-shaped clamping grooves (72).
6. The weighing sensor according to claim 5, characterized in that: The elastic body (2) has a notch-shaped transverse structural groove (73) at a position close to the second pillar (12), and the elastic body (2) has a notch-shaped transverse structural groove (73) at a position close to the embracing wall (3).
7. The weighing sensor according to claim 6, characterized in that: A longitudinal pressure concentration groove is provided on the elastic body (2) at a position opposite to the protective cover (6).
8. The weighing sensor according to claim 7, characterized in that: The protective cover (6) is fixed on the elastic body (2) by means of screws.
9. The weighing sensor according to claim 8, characterized in that: The protective cover (6) is fixed with a cable (8), and the cable (8) cooperates with the strain gauge.