阅读说明：本技术 一种三偏心蝶阀阀体偏心测量装置 (Eccentric measuring device of three eccentric butterfly valve body ) 是由 姚鑫磊 金刚 金永芹 骆新杰 汤丹 陈森林 张�杰 于 2021-09-29 设计创作，主要内容包括：一种三偏心蝶阀阀体偏心量的测量装置,包括十字导向块、基座、连杆、限位座,十字导向块一端装于基座顶部的导向槽Ⅰ内,另一端装于连杆一侧的导向槽Ⅱ内,限位座装于基座顶部的定位止口,连杆另外一端连接有探针Ⅰ,探针Ⅰ位于连杆的导向槽的中心线上,滑动座的两端对称设有探针Ⅱ,探针Ⅰ与探针Ⅱ的两两间距组成等腰三角形。发明的有益效果是,本装置实现多口径、多规格的阀体的精确、快速测量,结构紧凑、自由度高、操作灵活、简便,通用性好。(The utility model provides a measuring device of three eccentric butterfly valve body eccentricity, including the cross guide block, a pedestal, the connecting rod, spacing seat, cross guide block one end is adorned in the guide way I at base top, the other end is adorned in the guide way II of connecting rod one side, spacing seat is adorned in the location tang at base top, the other one end of connecting rod is connected with probe I, probe I is located the central line of the guide way of connecting rod, the both ends symmetry of sliding seat is equipped with probe II, isosceles triangle is constituteed with two liang of intervals of probe I and probe II. The device has the advantages of realizing accurate and rapid measurement of the multi-caliber and multi-specification valve body, along with compact structure, high degree of freedom, flexible and simple operation and good universality.)

1. The measuring device is characterized by comprising a cross guide block, a base, a connecting rod and a limiting seat, wherein one end of the cross guide block is arranged in a guide groove I at the top of the base, the other end of the cross guide block is arranged in a guide groove II at one side of the connecting rod, the limiting seat is arranged in a positioning spigot at the top of the base, the limiting seat is fixed on the base through a fastener, a square groove is arranged at the bottom of the base, round holes are formed in two ends of the bottom of the square groove, springs are arranged in the round holes, a telescopic block is arranged in the square groove, contacts are symmetrically arranged at two ends of the telescopic block, a limiting groove is formed in the side surface of the telescopic block, a limiting part in the limiting groove is clamped into the through hole in the side surface of the base, a probe I is connected to the other end of the connecting rod and is positioned on the center line of the guide groove of the connecting rod, a guide hole is formed in the connecting rod, and a sliding seat is matched in the guide hole, Screw II, nut, the both ends symmetry of sliding seat is equipped with probe II, isosceles triangle is constituteed with two liang of intervals of probe II to probe I, contact, probe I, probe II are parallel to each other and all keep perpendicular with the connecting rod, be equipped with the square hole on the spacing seat, the inboard of spacing seat is equipped with rectangular recess, the square nut is equipped with in the rectangular recess, the threaded hole fit of square nut has screw I that passes spacing seat square hole, the tip card of screw I is at the back straight line inslot of connecting rod.

2. The device for measuring the eccentricity of the valve body of the triple offset butterfly valve according to claim 1, wherein the top of the contact is semi-spherical.

3. The device for measuring the eccentricity of the valve body of the three-eccentric center butterfly valve according to claim 2, wherein the connecting rod is connected with the probe I in a replaceable way.

4. The device for measuring the eccentricity of the valve body of the triple eccentric butterfly valve according to claim 3, wherein the sliding seat is connected with the probe II in a replaceable way.

Technical Field

The invention relates to a measuring device, in particular to a valve body eccentricity measuring device of a three-eccentric butterfly valve.

Background

The method for detecting the actual eccentricity after the triple eccentric butterfly valve is machined lacks a simple, convenient, accurate and reliable method, the size eccentricity of the valve body in the prior art is realized by elaborate operation of a machining worker, and the angle eccentricity is realized by the guarantee of a tool clamp. The existing equipment capable of detecting the eccentricity of the valve body of the three-eccentric butterfly valve is a three-coordinate measuring instrument, and coordinate values of a detection point of the valve body are read and displayed through a measuring head to obtain the eccentricity of the valve body. However, the actual detection process for one valve body is very inconvenient, the three-coordinate measuring instrument is precise detection equipment, special places are needed for placing and professional personnel to operate and maintain the valve body, the valve body cannot be detected nearby because the equipment is fixed and cannot move, the valve body to be detected is inconvenient to transfer to a three-coordinate detection workbench because the specifications of the butterfly valve body are multiple, the weight is large, the structure is special, the time for detecting one valve body by the three-coordinate measuring instrument is long, the detection efficiency is low, the requirement on the professional degree of the detection personnel is high, the three-coordinate measuring instrument is not suitable for detecting the valve bodies in batches, and the size of the valve body with a large specification even exceeds the working range of the three-coordinate measuring instrument.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides a valve body eccentricity measuring device of a three-eccentric butterfly valve.

The invention has the technical scheme that the device for measuring the eccentricity of the valve body of the three-eccentric butterfly valve comprises a cross-shaped guide block, a base, a connecting rod and a limiting seat, wherein one end of the cross-shaped guide block is arranged in a guide groove I at the top of the base, the other end of the cross-shaped guide block is arranged in a guide groove II at one side of the connecting rod, the limiting seat is arranged in a positioning spigot at the top of the base, the limiting seat is fixed on the base through a fastener, the bottom of the base is provided with a square groove, two ends of the bottom of the square groove are provided with round holes, a spring is arranged in the round holes, a telescopic block is arranged in the square groove, two ends of the telescopic block are symmetrically provided with contacts, the side surface of the telescopic block is provided with the limiting groove, a limiting part in the limiting groove is clamped in from a side surface through hole of the base, the other end of the connecting rod is connected with a probe I, the probe I is positioned on the center line of the guide groove of the connecting rod, a guide hole is internally matched with a sliding seat, a screw II and a nut, two ends of the sliding seat are symmetrically provided with probes II, isosceles triangle is constituteed with two liang of intervals of probe II to probe I, and contact, probe I, probe II are parallel to each other and all keep perpendicular with the connecting rod, are equipped with the square hole on the spacing seat, and the inboard of spacing seat is equipped with rectangular recess, is equipped with the square nut in the rectangular recess, and the threaded hole fit of square nut has the screw that passes spacing seat square hole, and the tip card of screw is at the back straight line inslot of connecting rod.

Preferably, the top of the contact is semi-spherical.

Preferably, the connecting rod is connected with the probe I in a replaceable way.

Preferably, the sliding seat is connected with the probe II in a replaceable way.

The device has the advantages that the device realizes accurate and rapid measurement of the valve bodies with multiple calibers and specifications, and has compact structure, high degree of freedom, flexible and simple operation and good universality.

The valve body to different bores uses the probe that suits to cooperate base tensioning probe just can find out the central line in shaft hole in the shaft hole, fine setting base two contacts contact the interior passageway of valve body completely just can find out the central line of valve body, find out the convenience of the process ten minutes at valve body passageway and shaft hole center, through with the eccentric conversion of valve body on this device, the inspection personnel utilizes slide caliper rule can make things convenient for quick actual size eccentric volume after obtaining the valve body processing, this series of operation process does not need special professional and complicated operation method, the inspection of ordinary workshop or operating personnel just can use the measurement.

Drawings

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

FIG. 2 is a view from the direction B of FIG. 1;

fig. 3 is a view from a in fig. 1.

In the figure: 1. a base; 2. a connecting rod; 3. a cross guide block; 4. a limiting seat; 5. a fastener; 6. a contact; 7. a telescopic block; 8. a limiting member; 9. a spring; 10. a square nut; 11. a screw I; 12. a probe I; 13. a probe II; 14. a sliding seat; 15. a screw II; 16. and a nut.

Detailed Description

As shown in the figure, the measuring device for the eccentricity of the valve body of the three-eccentric butterfly valve comprises a cross guide block 3, a base 1, a connecting rod 2 and a limiting seat 4, wherein one end of the cross guide block 3 is installed in a guide groove I at the top of the base 1, the other end of the cross guide block is installed in a guide groove II at one side of the connecting rod 2, the limiting seat 4 is installed in a positioning spigot at the top of the base 1, the limiting seat 4 is fixed on the base 1 through a fastening piece 5, the connecting rod 2 is matched with the cross guide block 3 and the limiting seat 4 to limit the connecting rod 2 on the base 1, and the connecting rod 2 can only move in the vertical direction (namely, the x direction) or the parallel direction (namely, the y direction) relative to the base 1.

The bottom of the base 1 is provided with a square groove, the two ends of the bottom of the square groove are provided with round holes, a spring 9 is arranged in each round hole, a telescopic block 7 is arranged in each square groove, two ends of each telescopic block 7 are symmetrically provided with contacts 6, the side face of each telescopic block 7 is provided with a limiting groove, a limiting part 8 in each limiting groove is clamped into a side through hole of the base 1, the telescopic blocks 7 move freely along the square grooves of the base 1 under the matching of the springs 9 and the limiting part 8, and two contacts 6 on the telescopic blocks 7 move in a telescopic straight line (namely in a z direction) in parallel with the base 1.

Connecting rod 2 other one end is connected with probe I12, and probe I12 is located the central line of the guide way of connecting rod 2, be equipped with the guiding hole on the connecting rod 2, the guiding hole fit in has sliding seat 14, screw II 15, nut 16, sliding seat 14's both ends symmetry is equipped with probe II 13, and isosceles triangle is constituteed with two liang of intervals of probe I12 and probe II 13, and contact 6, probe I12, probe II 13 are parallel to each other and all keep perpendicular with connecting rod 2, and probe I12, probe II 13 stretch into the valve body shaft hole and select suitable position, and it can be injectd connecting rod 2 position to fasten screw II 15 after blocking the shaft hole.

Be equipped with the square hole on spacing seat 4, the slide caliper rule of being convenient for stretches into the measurement, and the inboard of spacing seat 4 is equipped with rectangular recess, is equipped with square nut 10 in the rectangular recess, and the threaded hole fit of square nut 10 has the screw I11 that passes spacing seat 4 square hole, and the tip card of screw I11 is at the back straight line inslot of connecting rod 2. When the screw I11 is loosened, the connecting rod 2 moves along the y direction to drive the square nut 10 and the screw I11 to move together. After the screw I11 is screwed down, the base 1 and the connecting rod 2 are fixed in position.

When the valve body pressure regulating device is used, the base 1 is tightly attached to the side face of the valve seat, a proper position is found, the contact 6 is tightly attached to a channel in the valve body, the contact 6 and the channel in the valve body are kept at a certain compression amount, the base 1 is stabilized, the connecting rod 2 is moved to enable the probe I12 fixed with the connecting rod 2 to be fully contacted with a shaft hole and to be at the farthest distance from the valve seat, the screw I11 is screwed to enable the connecting rod 2 to be fixed with the base 1, the other two movable probes II 13 are moved, the screw II 15 is screwed after the proper position is achieved, and the connecting rod 2 and the shaft hole are limited and fixed. And loosening the screw I11 at the base 1, finely adjusting the base 1 to ensure that the two contacts 6 are fully contacted with the channel in the valve body, and screwing the screw I11 at the base 1 again. The eccentricity of the valve body is equivalently converted to the measuring device through the steps, the corresponding size of the device is measured by the caliper, and the actual eccentricity a and b of the valve body are obtained.

The method for acquiring the eccentricity comprises the following steps: the distance L1 from the base 1 to the probe I12 of the device is measured by calipers, and the distances L2 and L3 from the two side faces of the connecting rod 2 to the two sides of the base 1 are measured, wherein the radius R of the shaft hole can be directly measured and obtained, the distance h from the side face of the valve seat to the center line of the seal is known, the eccentricity a = L1-R-h, and the eccentricity b = (L2-L3)/2.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.