CN112747808A - Tension sensor with display function - Google Patents
Tension sensor with display function Download PDFInfo
- Publication number
- CN112747808A CN112747808A CN201911039576.8A CN201911039576A CN112747808A CN 112747808 A CN112747808 A CN 112747808A CN 201911039576 A CN201911039576 A CN 201911039576A CN 112747808 A CN112747808 A CN 112747808A
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- Prior art keywords
- sensor
- display function
- tension
- tension sensor
- fixedly connected
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2287—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges constructional details of the strain gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention provides a tension sensor with a display function. The tension sensor with the display function, the sensor body and the first connecting cylinder; the sensor comprises a sensor body, a connector, two the connector respectively fixed connection in the both sides of sensor body, one side fixedly connected with fixed cylinder of connector, the thread groove has been seted up to the inside of fixed cylinder. The invention provides a tension sensor with a display function, which is characterized in that a reinforcing structure is arranged, when the sensor is connected with an installation head, the reinforcing structure is added on the basis of the original screw fixing mode, so that the connection relation between the sensor and the installation head is further enhanced, even if threads are worn, the fixing effect is deteriorated, the whole fixing effect can be ensured not to be greatly influenced through the reinforcing structure, the falling-off condition between the sensor and the installation head can be avoided to a certain extent, and the practicability and the service life of the sensor are increased.
Description
Technical Field
The invention relates to the field of tension sensors, in particular to a tension sensor with a display function.
Background
A tension sensor, called as resistance strain sensor, belonging to weighing sensor series, is a device for converting physical signal into measurable electric signal and outputting it, it uses two tension transmitting parts to transmit force, and its structure contains force-sensitive device and two tension transmitting parts, in the force-sensitive device contains piezoelectric sheet and piezoelectric sheet pad, and the latter contains base plate portion and edge force-transmitting portion, and is characterized by that two ends of two tension transmitting parts are respectively fixed together, and the force-sensitive device is tightly clamped by using transverse acting surface between two ends, the piezoelectric sheet pad is pressed in the central region of piezoelectric sheet on one side, and the base plate portion is positioned between another side of piezoelectric sheet and edge force-transmitting portion and tightly attached to piezoelectric sheet, and its one of its uses is to make hook balance to replace lever balance, and its actual working environment is critical for correctly selecting tension sensor, not only it is related to the normal working of tension sensor and its safety and service life, and even the reliability and safety of the entire scale.
Tension sensor's advantage is the precision height, measuring range is wide, long service life, moreover, the steam generator is simple in structure, the frequency response characteristic is good, can work under adverse conditions, easily realize the miniaturization, wholeization and variety diversification etc. but tension sensor among the prior art still has some shortcomings, tension sensor is when the installation, generally through the screw fixation, and the screw fixation's mode is after long-time the use, screw thread on the screw can receive the damage, make fixed effect worsen, can lead to tension sensor to appear droing when receiving the pulling force, thereby influence tension sensor's use.
Therefore, it is necessary to provide a tension sensor with a display function to solve the above technical problems.
Disclosure of Invention
The invention provides a tension sensor with a display function, which solves the problems that the thread is damaged and the fixing effect is poor after a tension sensor screw fixing mode is used for a long time.
In order to solve the above technical problems, the present invention provides a tension sensor with a display function, including:
the sensor comprises a sensor body and a first connecting cylinder;
the sensor comprises a sensor body, two connectors and a movable groove, wherein the two connectors are respectively and fixedly connected to two sides of the sensor body, one side of each connector is fixedly connected with a fixed cylinder, a threaded groove is formed in the fixed cylinder, two sides of the outer surface of the threaded groove are respectively provided with a movable groove, and one side of the inner surface of each movable groove is communicated with the movable groove;
two connectors are located the centre of sensor body top and bottom respectively for be connected with the installation head, a fixed section of thick bamboo plays the connection effect, and a fixed section of thick bamboo's surface is provided with the screw thread, with the inside screw thread adaptation of the rotation lantern ring, and the thread groove is connected with first connecting cylinder, two shifting chutes respectively with the left and right sides of thread groove internal surface.
The reinforcing structure comprises a limiting rod, two springs are sleeved on the surface of the limiting rod, and a movable block is sleeved on the surface of the limiting rod;
the reinforced structure is used for increasing the connection stability between sensor and the installation head for it is more firm to connect between the two, both ends respectively with the left and right sides fixed connection of movable inslot surface about the gag lever post, and two springs are located the left and right sides of movable block respectively, and the surface sliding connection of movable block and gag lever post moves through the movable block and drives the movable block removal, and extrudees the spring, makes the movable block have elasticity.
A rotating collar threadedly connected to a surface of the stationary barrel.
Preferably, one side of the movable block is fixedly connected with a movable block, and one side of the movable block is fixedly connected with a positioning shaft.
Preferably, the positioning grooves are formed in two sides of the outer surface of the first connecting cylinder, and the second connecting cylinder is fixedly connected to one side of the first connecting cylinder.
Preferably, the outer surface of the second connecting cylinder is provided with threads, and a mounting head is fixedly connected to one side of the second connecting cylinder.
Preferably, one side of the sensor body is provided with a data transmission head, and the data transmission head is connected with a display through a connecting wire.
Preferably, the sensor body is provided with two tension grooves, and the sensor body is a cuboid metal block.
Compared with the related art, the tension sensor with the display function provided by the invention has the following beneficial effects:
the invention provides a tension sensor with a display function, which is characterized in that a reinforcing structure is arranged, when the sensor is connected with an installation head, the reinforcing structure is added on the basis of the original screw fixing mode, so that the connection relation between the sensor and the installation head is further enhanced, even if threads are worn, the fixing effect is deteriorated, the whole fixing effect can be ensured not to be greatly influenced through the reinforcing structure, the falling-off condition between the sensor and the installation head can be avoided to a certain extent, and the practicability and the service life of the sensor are increased.
Through setting up two-layer threaded connection relation, firstly rotate lantern ring and second connecting cylinder threaded connection, but first connecting cylinder and thread groove threaded connection compare in traditional one deck threaded connection relation, and two-layer relation of connection can stability some stronger, and when wearing and tearing appear in the screw thread, its fixed effect can not reduce rapidly, slows down the speed of fixed effect variation.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of a tension sensor with a display function according to the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention shown in FIG. 1;
fig. 3 is an enlarged view of the portion a shown in fig. 2.
Reference numbers in the figures: 1. the sensor comprises a sensor body, 2, a first connecting cylinder, 3, a connector, 4, a fixed cylinder, 5, a thread groove, 6, a moving groove, 7, a moving groove, 8, a reinforcing structure, 81, a limiting rod, 82, a spring, 83, a moving block, 84, a moving block, 85, a positioning shaft, 9, a rotating lantern ring, 10, a positioning groove, 11, a second connecting cylinder, 12, an installing head, 13 and a data transmission head.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a tension sensor with a display function according to the present invention; FIG. 2 is a schematic view of the internal structure of the present invention shown in FIG. 1; fig. 3 is an enlarged view of the portion a shown in fig. 2. A tension sensor with a display function includes:
a sensor body 1 and a first connecting cylinder 2;
the sensor comprises connectors 3, wherein the two connectors 3 are respectively and fixedly connected to two sides of the sensor body 1, one side of each connector 3 is fixedly connected with a fixed cylinder 4, a thread groove 5 is formed in each fixed cylinder 4, moving grooves 6 are formed in two sides of the outer surface of each thread groove 5, and one side of the inner surface of each moving groove 6 is communicated with a movable groove 7;
the two connectors 3 are respectively positioned between the top and the bottom of the sensor body 1 and are used for being connected with the mounting head 12, the fixed cylinder 4 plays a connecting role, threads are arranged on the surface of the fixed cylinder 4 and are matched with the threads inside the rotating lantern ring 9, the thread groove 5 is connected with the first connecting cylinder 2, and the two moving grooves 6 are respectively arranged on the left side and the right side of the inner surface of the thread groove 5;
the reinforced structure 8 comprises a limiting rod 81, two springs 82 are sleeved on the surface of the limiting rod 81, and a movable block 83 is sleeved on the surface of the limiting rod 81;
the reinforcing structure 8 is used for increasing the connection stability between the sensor and the mounting head 12, so that the connection between the sensor and the mounting head is firmer, the left end and the right end of the limiting rod 81 are respectively fixedly connected with the left side and the right side of the inner surface of the movable groove 7, the two springs 82 are respectively positioned on the left side and the right side of the movable block 83, the movable block 83 is connected with the limiting rod 81 in a surface sliding manner, the movable block 83 is driven to move through the movement of the movable block 84, the spring 82 is extruded, the movable block 84 has elasticity, one side of the movable block 84 is set to be an inclined plane, when the rotating lantern ring 9 moves, the movable block 84 can be extruded below the inclined plane to move;
a rotating collar 9, said rotating collar 9 being screwed to the surface of said fixed cylinder 4.
The internal part of the rotating lantern ring 9 is provided with threads matched with the surfaces of the fixed cylinder 4 and the second connecting cylinder 11, the rotating lantern ring 9 is rotated to enable the rotating lantern ring 9 to move up and down along the surface of the fixed cylinder 4, and the rotating lantern ring 9 is in threaded connection with the second fixed connecting cylinder 11, so that a second layer connecting relation is directly formed between the sensor and the mounting head 12, the direct connection between the sensor and the mounting head is firmer, and the stability is stronger;
a moving block 84 is fixedly connected to one side of the moving block 83, and a positioning shaft 85 is fixedly connected to one side of the moving block 84.
Through the sliding surface connection of movable block 83 and gag lever post 81, play limiting displacement to movable block 84, location axle 85 and constant head tank 10 adaptation, through both joints, play the reinforcing effect to a fixed section of thick bamboo 4 and first connecting cylinder 2, not only have the threaded connection relation of one deck between the two, one deck joint effect in addition to the realization plays the reinforcing effect to being connected between whole sensor and the installation head 12, makes fixed effect higher between the two, and stability is stronger.
The locating groove 10 has all been seted up to the both sides of first connecting cylinder 2 surface, one side fixedly connected with second connecting cylinder 11 of first connecting cylinder 2.
Two positioning grooves 10 are formed in the left and right sides of the outer surface of the first connecting cylinder 2, and the positioning grooves 10 are fitted to the positioning shaft 85.
The outer surface of the second connecting cylinder 11 is provided with threads, and a mounting head 12 is fixedly connected to one side of the second connecting cylinder 11.
The diameter of the second connector barrel 11 is the same as that of the fixed barrel 4, ensuring that the rotating collar 9 can be moved to the surface of the second connector barrel 11 to connect the two together, the mounting head 12 and one end of the sensor connection part.
One side of the sensor body 1 is provided with a data transmission head 13, and the data transmission head 13 is connected with a display through a connecting wire.
The data transmission head 13 is connected with the display, when the sensor is used, real-time data obtained by the sensor side is transmitted to the display through a lead, and people directly read related data through the display.
The sensor body 1 is provided with two tension grooves, and the sensor body 1 is a cuboid metal block.
Relevant parameters of the sensor: the rated load is 200 plus 300kg, the precision grade C2 insulation resistance (M omega) is more than or equal to 5000(100VDC), the comprehensive error (% F.S) is 0.03 excitation voltage (V) 9-12 (DC), the sensitivity (mV/V) is 2.0 +/-0.02, the temperature compensation range (DEG C) is from minus 10 to plus 40 nonlinearity (% F.S)0.03, the use temperature range (DEG C) is from minus 35 to plus 65, the hysteresis (% F.S)0.03 zero point temperature influence (% F.S/10 ℃) is 0.03 repeatability (% F.S)0.01, the sensitivity temperature influence (% F.S/10 ℃) is 0.03, the creep (% F.S/30min)0.02 safety overload range (% F.S)150, the zero point output (% F.S) ± 1, the limit overload range (% F.S)200, the input impedance (omega) is 700 +/-7, the protection grade IP65, the output impedance (M) is 700 +/-7, and the four-core shielded cable wire is 3M.
And (3) attention points during installation and use: the tension sensor needs to be handled lightly, and particularly for a small-capacity sensor using an alloy aluminum material as an elastic body, a large output error is likely to be caused by any impact or fall caused by vibration;
the loading device is designed and installed to ensure that the action line of the loading force is coincident with the stress axis of the tension sensor, so that the influence of the inclined load and the eccentric load is minimized;
in the aspect of horizontal adjustment, if a single tension sensor is used, the installation plane of the base of the tension sensor is adjusted to be horizontal by using a level gauge; if a plurality of sensors measure simultaneously, the mounting surface of the base of each sensor is kept on a horizontal plane as much as possible, and the aim of the method is mainly to ensure that the force born by each sensor is basically consistent;
determining the rated load of the sensor according to the range selection of the tension sensor in the description;
the mounting surface of the base of the sensor is as flat and clean as possible without any oil stain or adhesive film, and the mounting base has enough strength and rigidity which are generally required to be higher than the strength and rigidity of the sensor; the sensor shell, the protective cover plate and the lead joint are sealed, and a user cannot open the sensor shell, the protective cover plate and the lead joint;
in order to prevent chemical corrosion, Vaseline is preferably used for coating the outer surface of the tension sensor during installation, and the field table which is directly exposed to sunlight and has severe environmental temperature change is required to be used; when the situation cannot be avoided, a protection or relief device is additionally arranged;
in order to prevent the large current from directly flowing through the sensor body to damage the sensor and forbid electric welding operation after the sensor is installed, the large current is needed in case of inexhaustibility; a bypass device made of copper braided wires is additionally connected to the two ends of the tension sensor loading device; the cable is not suitable for self-lengthening, the cable is soldered at the joint when the cable is really required to be lengthened, and moisture-proof sealant is added;
preferably, baffles are used to shield the sensor around the tension sensor. The purpose of doing so can prevent the debris from falling into the motion part of the sensor, influence its measurement accuracy; the cable of the sensor is far away from a strong power supply line or a place with pulse waves, so that the cable of the tension sensor is independently inserted into an iron pipe when competition cannot be avoided, and the connection distance is shortened as much as possible;
the rated load of the used sensor is determined according to the range selection of the tension sensor in the description, although the tension sensor has certain overload capacity, the situation should be avoided as much as possible in the installation and use process, and sometimes, the sensor can be damaged permanently due to short-time overload;
in high precision applications, the tension sensor and the meter should be preheated for 30 minutes before use, and the sensor should be placed in a dry, ventilated and non-corrosive gas-free room.
The working principle of the tension sensor with the display function provided by the invention is as follows:
when the sensor is installed, the first connecting cylinder 2 on the installation head 12 is firstly screwed with the thread groove 5 on the fixed cylinder 4, and the first connecting cylinder 2 is gradually screwed with the fixed cylinder 4 by rotating the installation head 12 until the installation head 12 is not rotated any more;
then the rotating lantern ring 9 is rotated, so that the rotating lantern ring 9 gradually moves downwards and is finally in threaded connection with the surface of the second connecting cylinder 11 until the rotating lantern ring 9 cannot be rotated, the rotating lantern ring 9 moves downwards and extrudes the moving block 84, the moving block 84 drives the positioning shaft 85 to move towards the direction of the thread groove 5 and simultaneously drives the moving block 83 to move along the surface of the limiting rod 81 and extrude the spring 82, after the rotating lantern ring 9 and the rotating lantern ring cannot be rotated, the positioning shaft 85 is just in clamping connection with the positioning groove 10 at the moment, and the installation with the sensor is completed at the moment.
Compared with the related art, the tension sensor with the display function provided by the invention has the following beneficial effects:
the invention provides a tension sensor with a display function, which is characterized in that a reinforcing structure 8 is arranged, when the sensor is connected with an installation head 12, the reinforcing structure 8 is added on the basis of the original screw fixing mode, so that the connection relation between the sensor and the installation head is further enhanced, even if threads are worn, the fixing effect is poor, the whole fixing effect can be ensured not to be greatly influenced through the reinforcing structure 8, the falling-off condition between the sensor and the installation head can be avoided to a certain extent, and the practicability and the service life of the sensor are improved.
Through setting up two-layer threaded connection relation, firstly rotate lantern ring 9 and 11 threaded connection of second connecting cylinder, but first connecting cylinder 2 and 5 threaded connection of thread groove, compare in traditional one deck threaded connection relation, two-layer relation of connection can stability some stronger, when wearing and tearing appear in the screw thread, its fixed effect can not reduce rapidly, slows down the speed of fixed effect variation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A tension sensor with a display function, comprising:
the sensor comprises a sensor body and a first connecting cylinder;
the sensor comprises a sensor body, two connectors and a movable groove, wherein the two connectors are respectively and fixedly connected to two sides of the sensor body, one side of each connector is fixedly connected with a fixed cylinder, a threaded groove is formed in the fixed cylinder, two sides of the outer surface of the threaded groove are respectively provided with a movable groove, and one side of the inner surface of each movable groove is communicated with the movable groove;
the reinforcing structure comprises a limiting rod, two springs are sleeved on the surface of the limiting rod, and a movable block is sleeved on the surface of the limiting rod;
a rotating collar threadedly connected to a surface of the stationary barrel.
2. The tension sensor with display function according to claim 1, wherein a moving block is fixedly connected to one side of the moving block, and a positioning shaft is fixedly connected to one side of the moving block.
3. The tension sensor with display function according to claim 1, wherein positioning grooves are formed on both sides of the outer surface of the first connecting cylinder, and a second connecting cylinder is fixedly connected to one side of the first connecting cylinder.
4. The tension sensor with display function according to claim 3, wherein the outer surfaces of the second connecting cylinders are each provided with a screw thread, and a mounting head is fixedly connected to one side of the second connecting cylinders.
5. The tension sensor with the display function according to claim 1, wherein a data transmission head is arranged on one side of the sensor body, and the data transmission head is connected with a display through a connecting wire.
6. The tension sensor with display function according to claim 1, wherein the sensor body is provided with two tension grooves, and the sensor body is a rectangular parallelepiped metal block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911039576.8A CN112747808A (en) | 2019-10-29 | 2019-10-29 | Tension sensor with display function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911039576.8A CN112747808A (en) | 2019-10-29 | 2019-10-29 | Tension sensor with display function |
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| Publication Number | Publication Date |
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| CN112747808A true CN112747808A (en) | 2021-05-04 |
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| CN201911039576.8A Pending CN112747808A (en) | 2019-10-29 | 2019-10-29 | Tension sensor with display function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230112045A1 (en) * | 2021-10-08 | 2023-04-13 | Alton Shelton | Tension Gauge Device |
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2019
- 2019-10-29 CN CN201911039576.8A patent/CN112747808A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230112045A1 (en) * | 2021-10-08 | 2023-04-13 | Alton Shelton | Tension Gauge Device |
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Application publication date: 20210504 |