CN210037031U

CN210037031U - Plane force cell

Info

Publication number: CN210037031U
Application number: CN201920941479.7U
Authority: CN
Inventors: 史文全; 周琦; 吴志勇
Original assignee: Dongguan South Power Measurement And Control Equipment Co Ltd
Current assignee: Dongguan South Power Measurement And Control Equipment Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-02-07
Anticipated expiration: 2029-06-20

Abstract

The utility model relates to a force cell sensor technical field just discloses a plane force cell sensor, including sensor body, mounting box, inserted bar, permanent magnet, connecting piece, sleeve, an inserted cylinder, stopper and metal block, the bottom fixed connection of the top of sensor body and mounting box, the central point at mounting box top puts the bottom fixed connection with the inserted bar, the intermediate position at inserted bar top and permanent magnet's bottom fixed connection, the spacing groove has all been seted up to the both sides of inserted bar lateral wall. The utility model discloses an inserted bar and the inserting of inserting a section of thick bamboo, two spacing grooves on the whole inserted bar this moment respectively with two stopper looks joints to make whole sensor body and connecting piece be in ninety degrees states of relative perpendicular and get into, guarantee simultaneously that sensor and whole connecting piece are ninety degrees perpendicularly, thereby avoided leading to the emergence of sensor precision and sensitivity reduction phenomenon because change the misoperation.

Description

Plane force cell

Technical Field

The utility model relates to a force cell sensor technical field specifically is a plane force cell sensor.

Background

The force sensor is composed of three major parts, namely a bridge circuit (such as a Wheatstone bridge) consisting of one or more elastic bodies capable of generating deformation after being stressed, a resistance strain gauge capable of sensing the deformation, an adhesive capable of fixedly adhering the resistance strain gauge to the elastic body and conducting the strain, a sealant for protecting an electronic circuit and the like.

In the force cell sensor in-service use process, can meet the circumstances such as overload, impact sometimes, cause sensor plastic deformation, influence the measurement accuracy, in the time of serious, still can lead to the sensor to damage, unable normal use, at this moment just need change the sensor, the prerequisite that weighing sensor can be changed is that the axis of exerting force coincides with the atress axis of sensor, need guarantee this moment that sensor and whole connecting piece are perpendicular to become 90 degrees angles, if there is the deviation, will directly influence accuracy and sensitivity.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a plane force cell sensor has reached and has guaranteed that the sensor is when changing, and the purpose of exerting the axis and the atress axis coincidence of sensor mutually guarantees simultaneously that sensor and whole connecting piece are ninety degrees perpendicularly to avoided leading to the emergence of sensor precision and sensitivity reduction phenomenon because change misoperation.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a plane force cell sensor, includes sensor body, mounting box, inserted bar, permanent magnet, connecting piece, sleeve, an inserted section of thick bamboo, stopper and metal block, the top of sensor body and the bottom fixed connection of mounting box, the central point at mounting box top puts the bottom fixed connection with the inserted bar, the intermediate position at inserted bar top and permanent magnet's bottom fixed connection, the spacing groove has all been seted up to the both sides of inserted bar lateral wall, the bottom and telescopic top fixed connection of connecting piece, the intermediate position at sleeve inner wall top and the top fixed connection who inserts a section of thick bamboo, the both sides of inserting a section of thick bamboo inner wall respectively with one side fixed connection of two stoppers, the intermediate position at inserted section of thick bamboo inner wall top and the top fixed connection of metal block.

Preferably, the bottom of the inner wall of the mounting box is fixedly connected with a slide rail, the inside of the slide rail is connected with two slide blocks in a sliding manner, and the initial positions of the two slide blocks are positioned on two sides of the slide rail.

Preferably, the slide rail is sleeved with a telescopic rod, two ends of the telescopic rod are fixedly connected with one side of the slide rail opposite to the two slide blocks respectively, the outer surface of the telescopic rod is sleeved with a telescopic spring, and two ends of the telescopic spring are fixedly connected with one side of the slide rail opposite to the two slide blocks respectively.

Preferably, two equal fixedly connected with push rods in one side that the slider was carried on the back mutually, two the other end of push rod all extends to the outside of mounting box, the other end fixedly connected with ejector pad of push rod, the surface of ejector pad has cup jointed the lag.

Preferably, two the equal fixedly connected with connecting rod in top of slider, logical groove has all been seted up to the both sides at mounting box top, the top of connecting rod extends to the top at mounting box top through leading to the groove.

Preferably, two the equal fixedly connected with gag lever post in top of connecting rod back of the body one side mutually, the slot that the cooperation gag lever post used is all seted up to telescopic both sides.

Preferably, the right side of the sensor body is provided with an observation wire, and one end of the observation wire is electrically connected with the output end of the sensor body.

(III) advantageous effects

The utility model provides a plane force cell sensor. The method has the following beneficial effects:

(1) the utility model discloses because the inserted bar, permanent magnet, the spacing groove, insert a section of thick bamboo, the setting of stopper and metal block, insert through the inserted bar with insert a section of thick bamboo, two spacing grooves on the whole inserted bar at this moment respectively with two stopper looks joints, thereby make whole sensor body and connecting piece be in the ninety degree state entering of relative perpendicular, and because permanent magnet makes the adsorption affinity with the metal block contact, make whole sensor body reach the effect of quick installation, and whole installation process has reached the atress axis of guaranteeing the sensor and has exerted the purpose that the axis coincides mutually, guarantee simultaneously that sensor and whole connecting piece are ninety degrees perpendicularly, thereby avoided leading to the emergence of sensor precision and sensitivity reduction phenomenon because change the misoperation.

(2) The utility model discloses an apply ascending effort of relative direction to two ejector pads, two sliders carry out relative movement inside the slide rail this moment, the telescopic link is owing to receive the effort and contract, two gag lever posts are in the relative movement state simultaneously, make the inserted bar peg graft with the cartridge with whole sensor body as an organic whole this moment, remove the effort of two ejector pads after inserting, cooperation expanding spring's elasticity resilience makes two sliders present opposite direction and removes, two gag lever posts are in the grafting state with two slots respectively this moment, thereby make whole sensor body can install the change fast, and this process is simple and efficient.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a front sectional view of the structural sleeve of the present invention;

FIG. 3 is a front sectional view of the structural mounting box of the present invention;

fig. 4 is a schematic diagram of a circuit system of the structural sensor body of the present invention.

In the figure: 1. a sensor body; 2. mounting a box; 3. inserting a rod; 4. a permanent magnet; 5. a limiting groove; 6. a connecting member; 7. a sleeve; 8. inserting a cylinder; 9. a limiting block; 10. a metal block; 11. a slide rail; 12. a slider; 13. a telescopic rod; 14. a tension spring; 15. a push rod; 16. a push block; 17. a connecting rod; 18. a through groove; 19. a limiting rod; 20. a slot; 21. the wire is observed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: a plane force transducer comprises a transducer body 1, a mounting box 2, an insert rod 3, a permanent magnet 4, a connecting piece 6, a sleeve 7, an insert cylinder 8, limiting blocks 9 and metal blocks 10, wherein the top of the transducer body 1 is fixedly connected with the bottom of the mounting box 2, the central position of the top of the mounting box 2 is fixedly connected with the bottom of the insert rod 3, the middle position of the top of the insert rod 3 is fixedly connected with the bottom of the permanent magnet 4, the two sides of the outer side wall of the insert rod 3 are respectively provided with a limiting groove 5, the bottom of the connecting piece 6 is fixedly connected with the top of the sleeve 7, the middle position of the top of the inner wall of the sleeve 7 is fixedly connected with the top of the insert cylinder 8, the two sides of the inner wall of the insert cylinder 8 are respectively fixedly connected with one side of the two limiting blocks 9, the middle position of the top of the inner wall of the insert cylinder 8 is fixedly connected with the top of, Stopper 9 and metal block 10's setting, through inserted bar 3 with insert the insertion of a section of thick bamboo 8, two spacing grooves 5 on whole inserted bar 3 this moment respectively with two stopper 9 looks joints, thereby make whole sensor body 1 and connecting piece 6 be in the ninety degree state entering of relative perpendicular, and because permanent magnet 4 makes the adsorption affinity with the contact of metal block 10, make whole sensor body 1 reach the effect of quick installation, and whole installation process has reached the purpose of guaranteeing that the atress axis of sensor coincides mutually with the axis of exerting force, guarantee simultaneously that sensor and whole connecting piece are ninety degrees perpendicularly, thereby avoided leading to the emergence of sensor precision and sensitivity reduction phenomenon because change improper operation.

The bottom of the inner wall of the mounting box 2 is fixedly connected with a slide rail 11, the interior of the slide rail 11 is connected with two sliders 12 in a sliding manner, the initial positions of the two sliders 12 are positioned at two sides of the slide rail 11, a telescopic rod 13 is sleeved inside the slide rail 11, two ends of the telescopic rod 13 are respectively fixedly connected with one side opposite to the two sliders 12, a telescopic spring 14 is sleeved on the outer surface of the telescopic rod 13, two ends of the telescopic spring 14 are respectively fixedly connected with one side opposite to the two sliders 12, one side opposite to the two sliders 12 is fixedly connected with a push rod 15, the other ends of the two push rods 15 extend to the exterior of the mounting box 2, the other end of the push rod 15 is fixedly connected with a push block 16, the outer surface of the push block 16 is sleeved with a protective sleeve, the tops of the two sliders 12 are respectively and fixedly connected with a connecting rod 17, two sides of the top, two connecting rods 17 back on the back the same side the equal fixedly connected with gag lever post 19 in top, slot 20 that cooperation gag lever post 19 used has all been seted up to the both sides of sleeve 7, and sensor body 1's right side is provided with observes electric wire 21, and observes electric wire 21's one end and sensor body 1's output electric connection to make whole sensor body 1 can install fast and change, and this process is simple and efficient.

When the sensor is used, acting force in the opposite direction is applied to the two push blocks 16, at the moment, the two slide blocks 12 move relatively in the slide rail 11, the telescopic rod 13 contracts under the acting force, meanwhile, the two limiting rods 19 are in a relative movement state, at the moment, the whole integrated sensor body 1 and the mounting box 2 enable the inserted rod 3 to be inserted into the inserting barrel 8, through the insertion of the inserted rod 3 and the inserting barrel 8, at the moment, the two limiting grooves 5 on the whole inserted rod 3 are respectively clamped with the two limiting blocks 9, so that the whole sensor body 1 and the connecting piece 6 enter in a relative vertical ninety-degree state, and due to the contact of the permanent magnet 4 and the metal block 10, the whole sensor body 1 achieves the effect of quick mounting, the acting force of the two push blocks 16 is removed after the insertion, and the two slide blocks 12 move in opposite directions by matching with the elastic recovery capability of the telescopic spring 14, at this moment, the two limiting rods 19 are respectively in an inserting state with the two inserting grooves 20, so that the whole sensor body 1 can be quickly installed and replaced, when the sensor body needs to be detached, the same step mode is adopted, and when the two push blocks 16 are pushed, the whole sensor body 1 only needs to be pulled downwards.

The CYL strain force transducer is formed by utilizing a resistance strain principle, a high-grade foil strain gauge adhered to an elastic body of the transducer forms a full bridge circuit, when the elastic body is subjected to load, the elastic body deforms, and the strain gauge correspondingly senses strain, so that a bridge loses balance and outputs an electric signal in direct proportion to the magnitude of acting force, in order to reduce the influence of temperature on the performance of the transducer, a temperature zero drift compensation resistor T, a temperature sensitivity compensation resistor E and a balance resistor D are added in a bridge circuit, and a schematic diagram of a CYL strain force transducer circuit system is shown in figure 4.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, and the supply also belongs to the common general knowledge in this field, and the utility model discloses mainly used protects mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a plane force cell sensor, includes sensor body (1), mounting box (2), inserted bar (3), permanent magnet (4), connecting piece (6), sleeve (7), inserts a section of thick bamboo (8), stopper (9) and metal block (10), its characterized in that: the sensor comprises a sensor body (1), a mounting box (2) and an inserting rod (3), wherein the top of the sensor body (1) is fixedly connected with the bottom of the mounting box (2), the center position of the top of the mounting box (2) is fixedly connected with the bottom of the inserting rod (3), the middle position of the top of the inserting rod (3) is fixedly connected with the bottom of the permanent magnet (4), limiting grooves (5) are formed in the two sides of the outer side wall of the inserting rod (3), the bottom of a connecting piece (6) is fixedly connected with the top of a sleeve (7), the middle position of the top of the inner wall of the sleeve (7) is fixedly connected with the top of an inserting barrel (8), the two sides of the inner wall of the inserting barrel (8) are fixedly connected with one side of two limiting blocks (9) respectively, and the middle position of the top of the inner.

2. A planar load cell as defined in claim 1, wherein: the bottom fixedly connected with slide rail (11) of mounting box (2) inner wall, the inside sliding connection of slide rail (11) has two sliders (12), two the initial position of slider (12) is located the both sides of slide rail (11).

3. A planar load cell as claimed in claim 2, wherein: the inside of slide rail (11) has cup jointed telescopic link (13), the both ends of telescopic link (13) respectively with two slider (12) relative one side fixed connection, telescopic spring (14) have been cup jointed to the surface of telescopic link (13), telescopic spring (14)'s both ends respectively with two slider (12) relative one side fixed connection.

4. A planar load cell as claimed in claim 2, wherein: two equal fixedly connected with push rod (15) in one side that slider (12) were carried on the back mutually, two the other end of push rod (15) all extends to the outside of mounting box (2), the other end fixedly connected with ejector pad (16) of push rod (15), the lag has been cup jointed to the surface of ejector pad (16).

5. A planar load cell as claimed in claim 2, wherein: two the equal fixedly connected with connecting rod (17) in top of slider (12), logical groove (18) have all been seted up to the both sides at mounting box (2) top, the top of connecting rod (17) is through leading to groove (18) and extend to the top at mounting box (2) top.

6. A planar load cell as claimed in claim 5, wherein: two equal fixedly connected with gag lever post (19) in top of connecting rod (17) one side of the back of the body mutually, slot (20) that cooperation gag lever post (19) used are all seted up to the both sides of sleeve (7).

7. A planar load cell as defined in claim 1, wherein: the right side of the sensor body (1) is provided with an observation wire (21), and one end of the observation wire (21) is electrically connected with the output end of the sensor body (1).