CN217155544U - Column type weighing module - Google Patents

Abstract

The utility model provides a column type weighing module, includes column type sensor, goes up pressure head and base, its characterized in that: the lower extreme of base is fixed with down the connecting plate, is fixed with on the lower connecting plate and can carries out 360 degrees oscillating quantities restrictions's of all around type sensor type of falling U type spare, and the up end central point of the type of falling U type spare puts and has seted up the square hole, and the upper end shaping of column type sensor has the square block structure of cutting edge with square hole complex four sides, and the lower extreme setting of column type sensor on the base, the square hole that the type of falling U type spare was passed to the upper end offsets with last pressure head, installs the protection sealing washer in the square hole department of the type of falling U type spare. The utility model discloses simple structure is reliable, processing is convenient, with low costs, can realize quick installation, all is provided with in each direction and prevents down the device that topples, plays limiting displacement to the horizontal yawing force that the module received and the unbalance loading in each position, prevents effectively that the sensor swing is too big and the weighing platform topples to can conveniently replace current double shear beam sensor.

Description

Column type weighing module

Technical Field

The utility model relates to a weighing device, concretely relates to column type weighing module is applicable to electronic weighing equipment such as electronic truck scale, rail weighbridge, material jar balance.

Background

At present, the column type sensor is widely applied to various electronic weighing devices such as various motor scales, rail scales, axle load scales, material tank scales and the like. The column sensor generally comprises connecting pieces such as an upper pressure head, a lower pressure head, an upper mounting plate, a lower mounting plate and a lateral pull rod. The column type sensor has compact structure, stable and reliable performance and excellent dynamic response performance, and is very suitable for manufacturing high-precision sensors.

For example, chinese utility model patent No. ZL200420020485.2 "column type weighing sensor" includes the column type elastomer, has resistance strain gauge at the fixed surface of column type elastomer, constitutes certain wheatstone bridge with resistance strain gauge, comes the output to carry out the voltage signal that changes along with the weight, and column type elastomer outside is fixed with the big envelope of protection resistance strain gauge, and column type elastomer height to diameter ratio is 2.5 ~ 4, and resistance strain gauge has four, and they paste evenly on column type elastomer middle part surface. The sensor keeps the advantages of simple structure and easy manufacture of the traditional column sensor, can overcome the defect of low congenital measurement precision of the column sensor, and achieves higher precision in the aspects of linearity, side resistance, torsion resistance, azimuth error and the like.

However, the above-mentioned column weighing sensor is high in the whole gravity center in use like the existing column sensor, and is easy to topple over, which results in high requirements for weighing platform limit, weighing platform strength and foundation strength in the use process. Meanwhile, the column type weighing sensor usually realizes rotation prevention through a limiting pin, but the limiting pin is easy to fall off, the failure rate is high, and the practicability is not strong; the sensor and the junction of the bearing accessory are easily affected by impurities such as sand and stones, so that the weighing precision is not high.

Disclosure of Invention

The utility model aims to solve the technical problem that a simple structure is reliable, processing convenient column type weighing module is provided to foretell technical current situation, prevents changeing and prevents empting, can effectively protect sensor and equipment.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a column type weighing module, includes column type sensor, goes up pressure head and base, its characterized in that: the lower extreme of base is fixed with down the connecting plate, is fixed with on the lower connecting plate and can carries out 360 degrees oscillating quantities restrictions's of all around type sensor type of falling U type spare, and the up end central point of the type of falling U type spare puts and has seted up the square hole, and the upper end shaping of column type sensor has the square block structure of cutting edge with square hole complex four sides, and the lower extreme setting of column type sensor on the base, the square hole that the type of falling U type spare was passed to the upper end offsets with last pressure head, installs the protection sealing washer in the square hole department of the type of falling U type spare.

As the improvement, the inverted U-shaped piece is integrally formed in a stamping mode, and the lower end of the inverted U-shaped piece is fixed on the left side and the right side of the lower connecting plate in a welding mode.

Furthermore, the protection sealing ring main part is square, and a circle of U-shaped groove sleeved with the wall surface of the square hole of the inverted U-shaped part is formed in the peripheral surface of the protection sealing ring.

Further, the middle part of column type sensor is cylindrical, and the upper end of column type sensor bears the end for the last of undergauge, goes up the middle part protruding be equipped with of bearing the end the round have with square hole complex square block structure, go up the pressure head and adopt counter bore protruding spherical surface structure, go up the square hole that bears the end and pass the type of falling U and offset with the recess of last pressure head terminal surface down, go up the middle part square block structure that bears the end and overlap mutually with the protection sealing washer and put the cooperation.

Still further, the lower extreme of column sensor bears the weight of the end under for with base complex, and the concave constant head tank that supplies the base to put into in the middle part of lower connecting plate, and the lower extreme setting of base is fixed through screw and lower connecting plate in the constant head tank, and the up end of connecting plate is stretched out to the upper end of base, bears the weight of the lower terminal surface of end down and offers the positioning groove who supplies the up end of base to put into, and positioning groove's the degree of depth is less than the height of base upper end, is the arc convex surface that offsets with the up end of base at positioning groove's top surface shaping.

And furthermore, the diameter of the lower bearing end is consistent with that of the middle cylinder of the column sensor, and a circle of annular groove is formed between the lower bearing end and the middle cylinder.

Still further, the lower connecting plate is a square plate, the base is circular, the positioning groove concavely arranged in the middle of the lower connecting plate is a circular groove, and the positioning groove arranged on the lower end face of the lower bearing end is a circular groove.

Furthermore, the middle parts of the left side and the right side of the inverted U-shaped piece are provided with weight-reducing hollow parts. The upper end face of the inverted U-shaped part is a horizontal circular plane, and the left side and the right side of the inverted U-shaped part are of structures with wide middle parts and narrow upper parts and lower parts.

Finally, the square hole is provided with arc transition parts at four corner parts, and correspondingly, the square block structure with the four edges trimmed is also provided with arc transition parts.

Compared with the prior art, the utility model has the advantages of: the inverted U-shaped piece is integrally formed by punching, the processing is convenient, the cost is low, meanwhile, the rotation is prevented by adopting square holes, the method is simple and reliable, and the effective limitation on the front-back and left-right 360-degree swinging quantity of the sensor is realized; a protective silica gel sealing ring is arranged at the square hole, so that the good reset of the sensor is realized; the upper pressure head is of a counter bore convex spherical surface structure, and the effective connection with the concave pressure head of the double-shear-beam sensor on the existing market can be realized. The utility model discloses simple structure is reliable, processing is convenient, with low costs, can realize quick installation, all is provided with in each direction and prevents down the device that topples, plays limiting displacement to the horizontal yawing force that the module received and the unbalance loading in each position, prevents effectively that the sensor swing is too big and the weighing platform topples to can conveniently replace current double shear beam sensor.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic structural view of an inverted U-shaped member;

FIG. 4 is a top view of FIG. 3;

fig. 5 is an exploded view of an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 5, a column type weighing module comprises a column type sensor 1, an upper pressure head 2, a base 3, a lower connecting plate 4 and an inverted U-shaped piece 5, wherein the lower end of the base 3 is fixed on the lower connecting plate 4, the lower end of the inverted U-shaped piece 5 is fixed on the lower connecting plate 4, the column type sensor 1 is subjected to 360-degree swing amount limitation in the front-back and left-right directions, a square hole 51 is formed in the center of the upper end face of the inverted U-shaped piece 5, a square block structure 111 with four side cut edges matched with the square hole 51 is formed at the upper end of the column type sensor 1, generally, for convenience of processing, the square hole 51 is provided with arc transition parts at four corner parts, correspondingly, the square block structure 111 with the four side cut edges also has arc transition parts, so that the cross sections of the square structure are not absolutely square, the lower end of the column type sensor 1 is arranged on the base 3, and the upper end of the column type sensor 1 passes through the square hole 51 of the inverted U-shaped piece 5 to be abutted against the upper pressure head 2, a protective silica gel sealing ring 50 is arranged at the square hole 51 of the inverted U-shaped member 5, and a rubber sealing ring can be selected.

The concrete structure is as follows: the inverted U-shaped piece 5 is formed by integral punching, the processing is convenient, the cost is low, the upper end surface of the inverted U-shaped piece 5 is a horizontal circular plane 53, the left side and the right side of the inverted U-shaped piece 5 are of structures with wide middle parts and narrow upper and lower parts, the lower end of the inverted U-shaped piece 5 is fixed on the left side and the right side of the lower connecting plate 4 in a welding mode, and the inverted U-shaped piece can be connected and fixed by screws. The main body of the protective silica gel sealing ring 50 is square, circular arc transition parts are usually arranged at four corner parts, and a circle of U-shaped groove sleeved with the wall surface of the square hole 51 of the inverted U-shaped part 5 is formed in the peripheral surface of the protective silica gel sealing ring 50. Column type sensor 1's middle part is cylindrical, and column type sensor 1's upper end bears end 11 for the last of undergauge, goes up the protruding round that is equipped with of middle part that bears end 11 and has and square hole complex square piece structure 111, goes up pressure head 2 and adopts the protruding sphere structure 22 of counter bore, can realize with the concave pressure head effective connection of two shear beam sensors on the existing market. Go up bearing end 11 and pass square hole 51 of the type of falling U5 and offset with the recess 21 of last pressure head 2 lower extreme face, go up bearing end 11's middle part square piece structure 111 and protective silica gel sealing washer 50 and put the cooperation mutually in a set.

The lower extreme of column sensor 1 bears end 12 under for with base 2 complex, the concave constant head tank 41 that supplies base 3 to put into in middle part of lower connecting plate 4, the lower extreme setting of base 3 is fixed through screw and lower connecting plate 4 in constant head tank 41, the up end of connecting plate 4 is stretched out down to the upper end of base 3, the lower terminal surface that bears end 12 down offers the positioning groove 121 that supplies the up end of base 3 to put into, the degree of depth of positioning groove 121 is less than the height of base 3 upper end, the top surface shaping at positioning groove 121 is the arc convex surface 122 that offsets with the up end of base 3. The diameter of the lower bearing end 12 is consistent with that of the middle cylinder of the column sensor 1, and a ring-shaped groove is formed between the lower bearing end 12 and the middle cylinder. The lower connecting plate 4 of this embodiment is a square plate, the base 3 is circular, the positioning groove 41 concavely formed in the middle of the lower connecting plate 4 is a circular groove, the positioning groove 121 formed in the lower end face of the lower bearing end 12 is a circular groove, and the weight-reducing hollowed-out portions 52 are formed in the middle of the left side and the right side of the inverted U-shaped part 5.

The specific structure of the interior of the pillar sensor 1 is consistent with the prior art and will not be described again here.

This embodiment is through setting up the type of falling U piece 5 outside column sensor 1 to realize effectively limiting column sensor 1 360 degrees oscillating quantities all around, make all directions all be provided with and prevent down overturning device, play limiting displacement to the horizontal yawing force that the module received and the unbalance loading in each position, effectively protect sensor and equipment, make truck scale etc. be in best measurement accuracy all the time simultaneously.

During operation, the sensor is placed on lower connecting plate 4 through base 3, goes up pressure head 2 and is used for transmitting the load of weighing from the upper junction plate to weighing sensor on. Because each direction is provided with the anti-falling and anti-overturning device, the horizontal lateral force borne by the module and the unbalance loading in each direction are limited, and the sensor and the equipment are effectively protected; the square hole 51 of the inverted U-shaped piece 5 is matched with the square block structure 111 of the column sensor 1 to realize effective rotation prevention of the sensor.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a column type weighing module, includes column type sensor, goes up pressure head and base, its characterized in that: the lower extreme of base is fixed with down the connecting plate, is fixed with on the lower connecting plate and can carries out 360 degrees oscillating quantities restrictions's of all around type sensor type of falling U type spare, and the up end central point of the type of falling U type spare puts and has seted up the square hole, and the upper end shaping of column type sensor has the square block structure of cutting edge with square hole complex four sides, and the lower extreme setting of column type sensor on the base, the square hole that the type of falling U type spare was passed to the upper end offsets with last pressure head, installs the protection sealing washer in the square hole department of the type of falling U type spare.

2. The column weighing module of claim 1, wherein: the U-shaped piece is formed by stamping and is integrally, and the lower end of the U-shaped piece is fixed on the left side and the right side of the lower connecting plate in a welding mode.

3. The column weighing module of claim 2, wherein: the protection sealing ring main part is square, and a circle of U-shaped groove sleeved with the wall surface of the square hole of the inverted U-shaped part is formed in the peripheral surface of the protection sealing ring.

4. The column weighing module of claim 3, wherein: the middle part of column type sensor is cylindrical, and the upper end of column type sensor bears the end for the last of undergauge, goes up the protruding round that is equipped with in middle part of bearing the end have with square hole complex square block structure, goes up the pressure head and adopts the protruding sphere structure of counter bore, goes up the square hole that bears the end and pass the type of falling U and offsets with the recess of terminal surface under the last pressure head, goes up the middle part square block structure that bears the end and overlaps mutually with the protection sealing washer and put the cooperation.

5. The column weighing module of claim 4, wherein: the lower extreme of column sensor for with base complex bear the end down, the concave constant head tank that supplies the base to put into in the middle part of lower connecting plate, the lower extreme setting of base is fixed through screw and lower connecting plate in the constant head tank, the up end of connecting plate under stretching out in the upper end of base, the lower terminal surface that bears the end down sets up the positioning groove who supplies the up end of base to put into, positioning groove's the degree of depth is less than the height of base upper end, the top surface shaping at positioning groove is the arc convex surface that offsets with the up end of base.

6. The column weighing module of claim 5, wherein: the diameter of the lower bearing end is consistent with that of the middle cylinder of the column sensor, and a circle of annular groove is formed between the lower bearing end and the middle cylinder.

7. The column weighing module of claim 6, wherein: the lower connecting plate is a square plate, the base is circular, the positioning groove concavely arranged in the middle of the lower connecting plate is a circular groove, and the positioning groove arranged on the lower end face of the lower bearing end is a circular groove.

8. The column weighing module of any one of claims 1 to 7, wherein: the middle part of the left and right sides of the inverted U-shaped piece is provided with a weight reduction hollowed-out part, the upper end face of the inverted U-shaped piece is a horizontal circular plane, and the left and right sides of the inverted U-shaped piece are of a structure with a wide middle part and a narrow upper part and a narrow lower part.

9. The column weighing module of any one of claims 1 to 7, wherein: the square hole is provided with arc transition parts at four corner parts, and correspondingly, the square block structure with the four side edges is also provided with arc transition parts.

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