阅读说明：本技术 用于燃气表机电阀智慧生产的齿轮组啮合检测系统及方法 (Gear set engagement detection system and method for intelligent production of electromechanical valve of gas meter ) 是由 邵泽华 向海堂 权亚强 李勇 刘彬 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种用于燃气表机电阀智慧生产的齿轮组啮合检测系统,该系统在变速箱齿轮组输送轨迹上设置有：自复位变形件,用于与输送的变速箱齿轮组接触变形驱使变速箱齿轮组内齿轮转动啮合；气吹件,用于吹气以通过气体流动带动变速箱齿轮组内齿轮啮合传动；自复位变形件和气吹件沿变速箱齿轮组输送轨迹方向顺次设置；还包括检测件,用于检测变速箱齿轮组内首级或末级中另一齿轮的转动齿数。本发明利用自复位变形件将变速箱齿轮组内齿轮进行初步啮合,再通过气吹件无接触吹气带动齿轮传动,最后通过检测件检测,进而可以确保在检测时齿轮均处于完全啮合状态,保证齿轮检测的准确性和有效性,减少废品率。(The invention discloses a gear set meshing detection system for intelligent production of an electrovalve of a gas meter, which is characterized in that a transmission track of a gear set of a gearbox is provided with: the self-resetting deformation piece is used for contacting with the conveyed gearbox gear set to deform so as to drive the internal gear of the gearbox gear set to rotate and mesh; the air blowing piece is used for blowing air to drive the gear in the gear set of the gearbox to be meshed for transmission through air flow; the self-resetting deformation piece and the air blowing piece are sequentially arranged along the conveying track direction of the gearbox gear set; the detection part is used for detecting the number of the rotating teeth of the other gear in the first stage or the last stage in the gear set of the gearbox. According to the invention, the self-resetting deformation piece is utilized to preliminarily engage the gear in the gear set of the gearbox, then the air blowing piece blows air in a non-contact manner to drive the gear to transmit, and finally the detection is carried out by the detection piece, so that the gears can be ensured to be in a complete engagement state during detection, the accuracy and the effectiveness of gear detection are ensured, and the rejection rate is reduced.)

1. The utility model provides a gear train meshing detection system for production of gas table machine electrovalve wisdom which characterized in that is provided with on gearbox gear train transmission track:

the self-resetting deformation piece is used for being in contact deformation with a conveyed gearbox gear set, and driving the gear in the gearbox gear set to be rotationally meshed based on the friction force generated by the contact of the self-resetting deformation piece and the self-resetting deformation force generated by the deformation of the self-resetting deformation piece;

the air blowing piece is used for blowing air to drive a gear in a gear set of the gearbox to be in meshing transmission through air flow, and the air blowing direction of the air blowing piece points to the gear tooth surface on the inner side of the gear groove of any one of the first stage or the last stage in the gear set of the gearbox;

the self-resetting deformation piece and the air blowing piece are sequentially arranged along the conveying track direction of the gear set of the gearbox;

also comprises the following steps of (1) preparing,

the detection piece is arranged behind the self-resetting deformation piece or the air blowing piece and used for detecting the number of the rotating teeth of the other gear in the first stage or the last stage in the gear set of the gearbox.

2. The gear train engagement detection system for smart production of gas watch electromechanical valves of claim 1, wherein said self-resetting deformable member is a self-resetting flexible resilient member.

3. The gear train engagement detection system for smart production of gas watch electromechanical valves of claim 1, wherein said self-resetting flexible elastomeric member is a brush.

4. The system of claim 1 in which the blowing direction is at an angle of 3 ° to 20 ° to the face of either the first or last gear.

5. The gear train engagement detection system for smart production of gas watch electromechanical valves of claim 1, wherein said air-blowing element is a capillary tube.

6. The gear train engagement detection system for smart production of gas meter electro-valves of claim 1, wherein said detection member is a lensed fiber that is vertically disposed and directed toward the gear teeth of the other of said first or last stages.

7. The gear train engagement detection system for smart production of gas meter electromechanical valves of claim 1, further comprising a lifting assembly, wherein the self-resetting deformation element, the blowing element and the detection element are disposed on the lifting assembly.

8. The gear train engagement detection system for intelligent production of gas meter electromechanical valves of claim 7, wherein the lifting assembly comprises a bracket, a lifting cylinder connected to the bracket, and a mounting plate disposed on the lifting cylinder, and the self-resetting deformation element, the blowing element, and the detection element are disposed on the mounting plate.

9. The gear train engagement detection system for smart production of gas meter electromechanical valves as claimed in claim 1, further comprising an index plate for conveying the gear train of the gearbox, the index plate being provided with a tooling fixture, the tooling fixture being positioned with a gearbox cover, the gearbox cover being provided with the gearbox gear train at an upper end thereof;

the lower end of the dividing plate is also provided with a divider.

10. A gear set engagement detection method for intelligent production of an electromechanical valve of a gas meter is characterized by comprising the following steps:

conveying the gear set of the gearbox according to the conveying track of the gear set of the gearbox;

the self-resetting deformation piece is in contact deformation with an internal gear of the gearbox gear set in the conveying process of the gearbox gear set, and drives the internal gear of the gearbox gear set to rotate to complete primary meshing;

continuously conveying the gear set of the gearbox until the gear set reaches a detection position and stopping conveying;

the air blowing piece continuously blows air, and the air flow drives any one gear of the first stage or the last stage in the gear set of the gearbox to transmit;

and the opening detection piece detects the number of the rotating teeth of the other gear in the first stage or the last stage in the gear set of the gearbox in unit time, and whether the gear set of the gearbox is meshed or not is determined based on the detection result of the number of the rotating teeth, so that the detection is finished.

Technical Field

The invention relates to the technical field of machining equipment, in particular to a gear set meshing detection system for intelligent production of an electrovalve of a gas meter.

Background

The gas meter electromechanical valve is used for realizing the opening and closing and the anti-rotation blockage of a gas meter and mainly comprises a motor, a gearbox (speed change gear box) and a valve rod executing mechanism, wherein the speed change gear box is required to be provided with a gear shaft and a gear set on a cover body of the speed change gear box in the automatic processing process, and the gas meter electromechanical valve is discharged after the installation and enters the next procedure.

When the gear set is installed, the gear set is formed by sequentially installing a plurality of duplicate gears and single gears according to an up-down laminated structure, after all the gears are installed, the gear set needs to be subjected to meshing detection, if the detection is unqualified, the gears with casting defects are screened out according to waste treatment, but because whether the gears are installed in place or not can not be ensured after the automatic gear installation, the gear meshing can not be ensured, so that the gear set is often detected as unqualified because the gears which meet the requirements are not meshed completely, the rejection rate and the cost are increased, and because the gears are all small plastic light structures, in order to avoid the gear falling and damage (gear clamping, gear breakage and the like), the external driving structure (a motor, a rack and the like) can not be used for driving gear transmission for detection, and the problem that the detection error occurs because the gear meshing is not in place can not be avoided, a plurality of problems are brought to the gear detection.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a gear set meshing detection system for intelligent production of an electrovalve of a gas meter.

The purpose of the invention is mainly realized by the following technical scheme: a gear set meshing detection system for intelligent production of an electromechanical valve of a gas meter is provided with the following components on a transmission gear set conveying track: the self-resetting deformation piece is used for being in contact deformation with a conveyed gearbox gear set, and driving the gear in the gearbox gear set to be rotationally meshed based on the friction force generated by the contact of the self-resetting deformation piece and the self-resetting deformation force generated by the deformation of the self-resetting deformation piece; the air blowing piece is used for blowing air to drive a gear in a gear set of the gearbox to be in meshing transmission through air flow, and the air blowing direction of the air blowing piece points to the gear tooth surface on the inner side of the gear groove of any one of the first stage or the last stage in the gear set of the gearbox; the self-resetting deformation piece and the air blowing piece are sequentially arranged along the conveying track direction of the gear set of the gearbox; the detection piece is arranged behind the self-resetting deformation piece or the air blowing piece and used for detecting the number of the rotating teeth of the other gear in the first stage or the last stage in the gear set of the gearbox.

In the technical scheme, the self-resetting deformation piece is a self-resetting soft elastic piece.

In the technical scheme, the self-resetting soft elastic piece is a brush.

In the technical scheme, the self-resetting deformation piece is vertically arranged, and the lower end of the self-resetting deformation piece can be in contact deformation with one or more gears in a gear set of the gearbox.

In the technical scheme, the blowing direction of the blowing piece obliquely and downwards points to the wheel surface of any one gear of the first-stage gear or the last-stage gear.

In the technical scheme, the included angle between the air blowing direction and the wheel surface of any gear of the first-stage gear or the last-stage gear is 3-20 degrees.

In the technical scheme, the distance between an air blowing opening of the air blowing piece and any one gear of the first stage or the last stage is 5-15 mm, the caliber of the air blowing opening is 0.5-2 mm, and the air blowing quantity of the air blowing piece is 800-1500 ml/min.

In this technical scheme, the air-blowing piece is the capillary.

In the technical scheme, the air blowing piece is also connected with an air supply system with a flow control assembly.

In the technical scheme, the detection piece is a lens optical fiber which is vertically arranged and points to the gear teeth of the other gear in the first stage or the last stage.

In the technical scheme, the automatic detection device further comprises a lifting assembly, and the self-resetting deformation piece, the air blowing piece and the detection piece are all arranged on the lifting assembly.

In this technical scheme, lifting unit includes the support, links in lift cylinder on the support and locates the mounting panel on the lift cylinder, all locates on the mounting panel from the deformation that restores to the throne piece, air-blowing piece and detection piece.

According to the technical scheme, the gearbox gear set conveying device further comprises an index plate used for conveying a gearbox gear set, a tooling jig is arranged on the index plate, a gearbox cover body is positioned on the tooling jig, and the gearbox gear set is mounted at the upper end of the gearbox cover body; the lower end of the dividing plate is also provided with a divider.

In conclusion, compared with the prior art, the invention has the following beneficial effects:

1. before detection, the self-resetting deformation piece is used for preliminarily engaging the gear in the gear set of the gearbox, the air blowing piece blows air in a non-contact mode to drive the gear to transmit, and finally the detection is carried out through the detection piece, so that the gear can be ensured to be in a complete engagement state during detection, the accuracy and the effectiveness of gear detection are ensured, the rejection rate is reduced, secondly, the self-resetting deformation piece is used for assisting the gear engagement and then blowing air in a non-contact mode through the air blowing piece, the integrity of the gear can be well protected, the gear is prevented from being damaged due to stress extrusion, the gear is well protected, the transmission is extremely stable, and the detection success rate is extremely high.

2. According to the invention, based on the arranged air blowing piece, air is blown by the air blowing piece, and then the gas flow is utilized to drive the gear in the gear set to carry out transmission, so that the gear transmission basis required by detection is realized, the gas is not in rigid contact with the gear, the gear can slightly shake or float in the air blowing process, and further the meshing of gear teeth between adjacent gears can be assisted in the shaking or floating process, so that the complete meshing of the gears in the gear set can be realized, the gear cannot be extruded and damaged due to incomplete meshing, and the stable transmission of the gear can be ensured due to the continuous blowing of the air blowing piece, and further the detection result can be ensured.

3. The invention sets the self-resetting deformation piece with deformation effect and automatic shape recovery, contacts with the gear set of the gearbox in the conveying process, further contacts with the gear set of the gearbox in the conveying process to deform due to the deformation effect, the self-resetting deformation piece and the gear set of the gearbox generate contact friction force, meanwhile, the self-resetting deformation piece generates resetting deformation force due to the deformation, the gears in the gear set of the gearbox can be driven to generate slight actions such as shaking, floating, fluctuation or rotation and the like based on the friction force and/or the deformation force, when the gears which are not meshed or not completely meshed perform the actions, the mutual tooth sockets and gear teeth are more easily meshed together, further the auxiliary meshing effect in the gear set of the gearbox is realized, the complete meshing of the gears is ensured, the accuracy of the detection result is ensured, and the original state is recovered after the deformation is completed, the purpose of repeated use is achieved.

4. The self-resetting deformable piece specifically adopts the self-resetting soft elastic piece, so that the gear can be prevented from being damaged due to the rigid action of the self-resetting soft elastic piece and the gear based on the flexibility, the integrity of the gear is well protected, the deformation of the self-resetting deformable piece also belongs to flexible deformation, the deformation force cannot be increased greatly due to the increase of the deformation amount, and the gear can be prevented from being popped out of a gear shaft or being excessively extruded on a gear contact surface to damage the gear due to the overlarge deformation force.

5. The self-resetting flexible elastic piece utilizes the brush as a self-resetting flexible elastic piece, and the brush head of the brush consists of a plurality of fine bristles, so that after the brush head is connected with a gear of a gearbox, the brush head can be locally deformed in a self-adapting manner corresponding to the gear structure and the gear position, can be contacted with different gears and generate different deformation directions and deformation amounts, can well drive the corresponding gears to move, enables different gears to generate different actions or displacement amounts, improves the meshing probability, can maximally reduce the damage and extrusion to the gears, and well protects the gear structure.

6. The lifting assembly can realize the lifting of the self-resetting deformation piece, the air blowing piece and the detection piece, so that the heights and the positions of the self-resetting deformation piece, the air blowing piece and the detection piece can be adjusted according to detection requirements, and the installation and the adjustment of the self-resetting deformation piece, the air blowing piece and the detection piece are facilitated.

7. The gearbox cover body can be positioned through the dividing disc, tracks of gearbox gear sets on the gearbox cover body can be consistent all the time through rotation, contact and contact positions of the self-resetting deformation piece and the gearbox gear sets at each time can be further ensured, basic consistency of auxiliary effects at each time is ensured, the transmission stopping position is controlled through the divider, the gearbox gear sets can be positioned and stopped at the detection position, and detection accuracy is improved.

The invention also discloses a method for detecting the engagement of the gear set of the gearbox, which comprises the following steps:

conveying the gear set of the gearbox according to the conveying track of the gear set of the gearbox;

the self-resetting deformation piece is in contact deformation with an internal gear of the gearbox gear set in the conveying process of the gearbox gear set, and drives the internal gear of the gearbox gear set to rotate to complete primary meshing;

continuously conveying the gear set of the gearbox until the gear set reaches a detection position and stopping conveying;

the air blowing piece continuously blows air, and the air flow drives any one gear of the first stage or the last stage in the gear set of the gearbox to transmit; and the opening detection piece detects the number of the rotating teeth of the other gear in the first stage or the last stage in the gear set of the gearbox in unit time, and whether the gear set of the gearbox is meshed or not is determined based on the detection result of the number of the rotating teeth, so that the detection is finished.

The method for detecting the gear set engagement of the gearbox has the characteristics of high detection precision, small error rate, stable transmission and good gear protection.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a first schematic diagram of a gear train engagement detection system for intelligent production of gas meter electromechanical valves;

FIG. 2 is a schematic illustration of a transmission gearset;

FIG. 3 is a schematic view of the tooth flank of the inside wheel of the tooth slot;

FIG. 4 is an enlarged view of the structure at C in FIG. 1;

FIG. 5 is a second schematic diagram of a gear train engagement detection system for intelligent production of gas meter electromechanical valves;

FIG. 6 is a schematic structural view of a cover of the transmission;

FIG. 7 is a flow chart of a transmission gearset engagement detection method;

the reference numerals in the drawings denote:

10-a gear set meshing detection system for intelligent production of gas meter electromechanical valves;

101-a self-resetting deformable member;

102-an air-blowing piece;

103-a detection member;

104-a lifting assembly; 1041-a scaffold; 1042-a lifting cylinder; 1043-a mounting plate;

105-an index plate; 1051-tooling fixture; 1052-a splitter;

20-a gearbox gear set;

30-a gearbox cover;

40. a transmission gear set engagement detection method;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

As shown in fig. 1, fig. 2 and fig. 3, a gear train engagement detection system 10 for intelligent production of gas meter electromechanical valves is disclosed in a first embodiment of the present invention, which at least includes: the self-resetting deformation piece 101 is used for being in contact deformation with the conveyed gearbox gear set 20, and the self-resetting deformation piece 101 drives the gears in the gearbox gear set 20 to be in rotary engagement based on friction force generated by the contact of the self-resetting deformation piece 101 and the self-resetting deformation force generated by the deformation of the self-resetting deformation piece 101; the air blowing piece 102 is used for blowing air to drive the gear in the gearbox gear set 20 to be in meshing transmission through air flow, and the air blowing direction of the air blowing piece 102 is directed to the gear tooth surface A on the inner side of the tooth socket of any one of the first stage and the last stage in the gearbox gear set 20; the self-resetting deformation piece 101 and the air blowing piece 102 are sequentially arranged along the conveying track direction of the gearbox gear set; the automatic transmission gear set comprises a self-resetting deformation piece 101 and an air blowing piece 102, and further comprises a detection piece 103 which is arranged behind the self-resetting deformation piece 101 or the air blowing piece 102 and used for detecting the number of rotating teeth of another gear in the first stage or the last stage in the transmission gear set 20.

The gear set meshing detection system 10 for the intelligent production of the electromechanical valve of the gas meter is mainly used for meshing detection after the gear set 20 of the gearbox is installed, can detect the gear transmission condition based on the detection piece 103 so as to screen out unqualified products with casting defects or assembly defects through detection, and before the detection piece 103 detects, assists the gear in the gear set 20 to be meshed based on the contact deformation of the self-resetting deformation piece 101, can avoid the problem of misdetection caused by incomplete gear meshing due to improper assembly, and provides power for the meshing detection of the gear set 20 by carrying out non-contact air blowing through the air blowing piece 102 so as to drive the gear in the gear set 20 of the gearbox, and can further assist the gear meshing in the air blowing process, ensure that all gears can be completely meshed, ensure stable and safe transmission driving and simultaneously improve the gear meshing degree, further improving the detection effect.

As shown in fig. 4, the self-resetting deformation element 101 is mainly used for auxiliary gear meshing before meshing detection of the gearbox gear set 20, so that gears meeting requirements can be completely meshed to meet detection requirements, false detection is avoided, and the detection success rate is improved. In actual use, the gearbox gear set 20 is conveyed on a conveying track, the self-resetting deformation piece 101 is positioned on the conveying track of the gearbox gear set 20 and is in contact with the conveying track, and gears on the gearbox gear set 20, which are in contact with the self-resetting deformation piece 101, are driven to slightly move to realize meshing based on friction force generated by contact of the self-resetting deformation piece 101 and friction force generated by contact of the self-resetting deformation piece and the self-resetting deformation force generated by contact deformation of the self-resetting deformation piece 101.

Specifically, the self-resetting deformation element 101 is an auxiliary element which has a deformation force and can automatically restore the shape to the original state, and drives the gears in the gearbox gear set 20 to generate the actions through the self-resetting deformation force generated by deformation, the actions can be one or more combinations of shaking, floating, fluctuation or rotation of the gears, when the gears which are not meshed or not completely meshed on the gearbox gear set 20 perform the actions, gear grooves and gear teeth of adjacent gears can be subjected to position fine adjustment, the gear grooves and the gear teeth are meshed more easily, further, the auxiliary meshing effect of the gears in the gearbox gear set 20 is realized, and the self-resetting deformation element 101 can be restored to the original state after deformation is completed and can be used repeatedly.

Based on the above, the self-resetting deformation element 101 can be a non-elastic element, and only uses the contact friction force to drive the gear to rotate, such as cotton, cloth, plastic, a baffle plate and the like, as a deformation auxiliary element; the elastic element can be a metal or nonmetal sheet, strip or wire, the metal or nonmetal can be plastic, rubber, sponge, memory alloy and the like, and the elastic element can also be an elastic reset structure consisting of a plurality of deformation elements and other mechanisms, such as a spring shifting piece mechanism consisting of a spring and a shifting piece, a brush consisting of elastic bristles and a brush handle and the like. Further, the self-resetting deformation piece 101 can be selected from self-resetting soft elastic pieces, and through the soft characteristic of the self-resetting soft elastic pieces, when the self-resetting deformation piece is in contact deformation with the gearbox gear set 20, the gears cannot be scratched or damaged in the continuous friction process of the conveyed gearbox gear set 20, and the gears are well protected. It is specific, be the brush from soft elastic component that restores to the throne, the brush hair of brush warp with gear contact back, because the brush head of brush comprises a plurality of tiny brush hairs, and then its and gearbox gear train 20 contact back, can correspond gear structure and gear position and carry out local self-adaptation deformation, thereby can contact and produce different deformation direction with different gears, the deflection, the action that not only can be fine drive corresponds the gear, make different gears produce different actions or displacement volume, improve the meshing probability, reduction that can also maximize is to the damage and the extrusion of gear, fabulous protection gear structure.

In order not to interfere with the transport of the gearbox gearset 20, the self-resetting deformable element 101 is arranged vertically, its lower end being deformable in contact with one or more gears in the gearbox gearset 20. And on the conveying track of the gearbox gear set 20, only the lower end part of the self-resetting deformation piece 101 is in contact with the gearbox gear set 20, so that the self-resetting deformation piece is in contact deformation with one or more gears in the gearbox gear set 20, the deformation elastic force of the self-resetting deformation piece generates at least one downward component force, and when one or more gears in the gearbox gear set 20 are driven to act, the gears are subjected to downward pressure, so that the gears cannot fall off from the gear shaft, and the assembly position of the gears is well maintained.

It should be noted that, when the self-resetting deformation element 101 contacts with the gear in the transmission gear set 20, a part of resistance may be generated to rotate the gear, but the gear structure is light and easy to damage, and therefore the resistance may not be too large, so that when the present embodiment is specifically applied, in order to avoid the resistance being too large, the resistance of the self-resetting deformation element 101 is generally very small, which may make the resistance possibly fail to ensure stable, comprehensive and effective driving of the gear, and therefore, in the present embodiment, for the effectiveness of the gear driving, it is considered that the gear driving is performed by using friction or deformation force, so as to achieve a good meshing auxiliary effect on the basis of protecting the gear, but a scheme that the self-resetting deformation element 101 may perform gear driving based on the contact resistance is not excluded.

With continuing reference to fig. 1, 2, 3 and 4, the air blowing member 102 is used as a power source structure for transmission of the gear set 20 of the transmission case, the air blowing member 102 blows air towards a tooth surface a of an inner side gear of a tooth space of any one of a first-stage gear or a last-stage gear in the gear set 20 of the transmission case, the air is driven to flow by the air blowing to drive the gears of the first-stage or the last-stage to rotate, and then the whole gear set 20 of the transmission case is driven to be in meshing transmission by meshing relationship, so that transmission of the gear set 20 of the transmission case is realized, and a transmission basis is provided for meshing detection of the gear set 20 of the transmission case.

Specifically, the air blowing piece 102 drives the gears in the gear set 20 of the gearbox to be in meshing transmission through a non-contact air blowing principle, the gears cannot be stressed, extruded and damaged due to assembly or improper meshing, the integrity of the gears can be well ensured, in the air blowing process, the first-stage or last-stage gears slightly shake or float under air blowing, when the gears shake or float, the adjacent gear teeth can be clamped into the tooth grooves of the adjacent gears, all the gears can be meshed under slight shaking according to the principle, complete meshing of all the gears in the gear set 20 of the gearbox is achieved in an auxiliary mode, the detection success rate is improved, due to shaking, floating and non-external force contact, the mutual acting force between the gears can be reduced while the meshing is assisted, the extrusion damage caused by improper meshing between the gears is further reduced, the gear structure is protected, and stable transmission of the gears can be ensured through continuous air blowing of the air blowing piece, the detection result is not influenced.

It should be noted that the transmission gear set 20 is disposed on the transmission cover, and has a supporting structure, and the inner gear thereof is light, and can not tilt or displace and rotate during the air blowing process, so that the air blowing transmission is feasible by using the air blowing structure, next, the first stage or the last stage gear refers to the gear B located at the first stage or the last stage of the transmission gear set 20, as shown in fig. 2, or according to the transmission mode, the first stage or the last stage gear refers to the driving transmission gear or the output transmission gear in the transmission gear set 20, so in practical application, the air blowing direction of the air blowing member 102 can be directed to the gear tooth surface a inside the gear tooth groove of the first stage gear set in the transmission gear set, and can also be directed to the gear tooth surface a inside the gear tooth groove of the last stage gear set in the transmission gear set, the embodiment is not particularly limited, and finally, further described, the tooth surface a of the tooth space inside gear refers to the tooth surface on either side of the tooth space on the gear, as shown in fig. 3.

As shown in fig. 4, in order to ensure the transmission effect and non-contact, the blowing opening of the blowing member 102 of the present embodiment is located above the wheel surface of the first stage or last stage gear. The air blowing piece 102 is located above the wheel surface of the first-stage or last-stage gear needing air blowing, so that when the first-stage or last-stage gear is blown, redundant air is not generated and blown to other gears, the influence of the air on the transmission of other gears can be effectively avoided, the normal transmission of all the gears is ensured, the transmission effect is ensured, the detection result precision is improved, and the air blowing piece 102 does not contact the first-stage or last-stage gear and does not influence the transmission of the first-stage or last-stage gear and the overall transmission of a gearbox cover body. When it should be noted that, the wheel surface of the first stage or the last stage gear refers to two side surfaces perpendicular to the central axis in the first stage or the last stage gear.

Specifically, when the air blowing member 102 is provided, the air blowing direction of the air blowing member 102 is directed obliquely downward toward the wheel surface of the first stage or the last stage gear. When the air blowing piece 102 blows air, in order to ensure that the first-stage gear or the last-stage gear can be driven, and reduce the influence on other gear drives caused by large loss or redundant air generated when the air blowing piece 102 blows air, when the air blowing piece is arranged, the air blowing direction of the air blowing piece 102 is obliquely downward directed to the wheel surface of the first-stage gear or the last-stage gear, namely, the first-stage gear or the last-stage gear is ensured to rotate, the waste of air is reduced, the transmission rate of the first-stage gear or the last-stage gear can be controlled by controlling the air flow, the transmission parameters required by detection are convenient to adjust, in addition, the air blowing direction is obliquely downward directed to the wheel surface of the first-stage gear or the last-stage gear, downward pressure can be provided for the first-stage gear or the last-stage gear, the situation that the gear floats too much in the air flow process to fall off a shaft is avoided, and the assembly precision of the gear is ensured.

Additionally, when the blowing direction of the blowing piece 102 is obliquely downward directed to the wheel surface of the first-stage or last-stage gear, the included angle between the blowing direction and the wheel surface of the first-stage or last-stage gear is 3-20 degrees. When the air blowing piece 102 blows air, if the included angle between the air blowing direction and the wheel face of the first-stage or last-stage gear is too large, a large amount of air is consumed, the downward component force is too large, the transmission of the first-stage or last-stage gear is influenced, the random dispersion of the action of the air on the gear teeth can be caused, the uniformity of the transmission speed can be influenced, the detection result is influenced, the driving force required by the first-stage or last-stage gear is increased, the requirement of the amount of air in unit time is further increased, the energy consumption of the air blowing piece 102 is increased, if the included angle between the air blowing direction and the wheel face of the first-stage or last-stage gear is too small, most of air can not be contacted with the tooth face A of the inner side wheel of the tooth socket to be blown away, the work efficiency is reduced, and the air loss is increased, therefore, in practical application, the included angle between the air blowing direction and the wheel face of the first-stage or last-stage gear is preferably 3-20 degrees, so that the stable transmission of the first-stage or last-stage gear A can be realized under the minimum energy consumption, the energy consumption is reduced. Furthermore, the included angle between the blowing direction and the wheel surface of the first-stage or last-stage gear can be 3-5 degrees, 5-8 degrees, 8-12 degrees, 12-18 degrees, 18-21 degrees and 21-25 degrees. Specifically, the included angle between the blowing direction and the wheel surface of the first-stage or last-stage gear is 12 degrees.

In order to ensure the transmission effect of the gear and reduce the influence of gas on other gears, the gas blowing opening of the gas blowing piece 102 of the embodiment is spaced from the first-stage or last-stage gear by 5-15 mm, the diameter of the gas blowing opening is 0.5-2 mm, and the gas blowing amount of the gas blowing piece 102 is 800-1500 ml/min.

Firstly, the air blowing opening of the air blowing piece 102 is arranged at an interval of 5-15 mm with the first-stage or last-stage gear, so that the air blowing direction can be dispersed due to the fact that the distance between the air blowing opening and the first-stage or last-stage gear is too far after the air is blown out, the air blowing direction precision and the driving effect are influenced, the air blowing speed can be guaranteed to meet the detection requirement or the requirement of first-stage or last-stage gear transmission, the influence of external force factors on other gear transmission due to air dispersion is further reduced, transmission fluctuation is caused, and the gear detection precision is guaranteed. Further, the distance between the air blowing opening of the air blowing piece 102 and the first-stage or last-stage gear is 5-7 mm, 7-9 mm, 9-11 mm, 11-13 mm and 13-15 mm. Specifically, the air blowing opening of the air blowing piece 102 is 9mm apart from the first or last gear a. It should be noted that, the distance between the blowing opening of the blowing member 102 and the first or last gear is: the distance between the air blowing opening and the central axis of the first-stage or last-stage gear.

Secondly, the caliber of the air blowing opening of the air blowing piece 102 is 0.5-2 mm, so that air can be sprayed out under a reasonable aperture, the blowing direction is ensured, and air shunting is reduced. Further, the caliber of the blowing opening of the blowing member 102 may be 0.5mm, 0.75mm, 1mm, 1.25mm, 1.5mm, 1.75mm or 2 mm. Specifically, the caliber of the blowing port of the air blowing piece 102 is 1 mm.

Here, the blowing position may be further defined in this embodiment, the blowing direction of the blowing member 102 is directed to the tooth flank a inside the tooth groove of the first-stage or last-stage gear in the gearbox gear set, and the tooth flank a inside the tooth groove is preferably a tooth flank away from one end of the gear engaged with the first-stage or last-stage gear, so that the influence on other gears due to the gas split is maximally reduced during blowing, and the meshing transmission rate is ensured to be stable.

As the air blowing structure of the embodiment, the air blowing member 102 preferably uses a capillary tube for blowing air, so as to ensure that the blowing direction and speed can be maintained for a long time after the air is blown out. Further, the capillary tube may be made of a gooseneck to facilitate adjustment of the blowing direction.

In order to better achieve the blowing effect of the blowing member 102, the blowing member 102 of the present embodiment is further connected to an air supply system with a flow control assembly. The gas supply system (not shown) of the present embodiment can continuously supply gas to the blowing member 102 and control the flow rate, etc. of the supplied gas under the action of the flow control assembly. Specifically, the flow control component can be a flow valve, a flow rate valve, a regulating valve and the like, and the gas supply system can be a gas pump, a gas cylinder, a gas bag and the like.

As shown in fig. 1 and 4, the detecting member 103 is used to detect the number of teeth of the uninflated gear in the first stage or the last stage of the transmission gear set 20. When the air blowing piece 102 blows air to the first-stage gear, the detection piece 103 is arranged behind the self-resetting deformation piece 101 and between the self-resetting deformation piece 101 and the air blowing piece 102 and detects the final-stage gear, and when the air blowing piece 102 blows air to the final-stage gear, the detection piece 103 is arranged behind the air blowing piece 102 and detects the first-stage gear.

It should be noted that the number of rotating teeth refers to the number of rotating teeth of a corresponding gear detected in unit time, specifically, after the gears in the gear set 20 of the transmission are all engaged, when the first-stage or last-stage gear is blown, the remaining gears not blown in the first-stage or last-stage gear are driven by the engagement to rotate, and the detecting element 103 can detect the number of rotating teeth of the gear when the gear rotates. Foretell number of teeth that rotates also can be according to the drive ratio of 20 internal gears in gearbox gear set, the diameter, total teeth number, the number of turns when conversion such as rotational speed this gear rotates, the angle, angular speed etc. because of rotating the number of teeth and detecting conveniently, the error is little, do not need to carry out the conversion again, so this embodiment chooses for use but does not restrict the number of teeth that rotates and regards as the detection element, also can obtain the number of turns through the conversion, the angle, data such as angular speed are regarded as the detection element, the conversion all can obtain through the reasonable derivation of prior art, this embodiment does not describe tired again.

Specifically, the detecting member 103 is a lens fiber, and the lens fiber is vertically disposed and directed to the teeth of the uninflated gear in the first stage or the last stage. When the gear which is not blown in the first stage or the last stage rotates, the gear teeth rotate once, the detection path of the lens optical fiber is shielded by the gear teeth, and the frequency of light in the lens optical fiber is changed, so that the detection of the number of the rotating teeth is realized, after the detection, the lens optical fiber is utilized to transmit data and the data can be analyzed by other data analysis equipment, and the detection result can be obtained.

As shown in fig. 1 and 5, the gear set engagement detection system 10 for intelligent production of gas meter electromechanical valve further includes a lifting assembly 104, and the self-resetting deformation element 101, the blowing element 102 and the detection element 103 are all disposed on the lifting assembly 104. The lifting assembly 104 is used for supporting and height adjusting the self-resetting deformation piece 101, the air blowing piece 102 and the detection piece 103.

As a specific structure, the lifting assembly 104 may include a bracket 1041, a lifting cylinder 1042 connected to the bracket 1041, and a mounting plate 1043 disposed on the lifting cylinder 1042, wherein the self-resetting deformation element 101, the blowing element 102, and the detection element 103 are disposed on the mounting plate 1043. The bracket 1041 is used for fixing and supporting the lifting cylinder 1042, and the lifting cylinder 1042 can lift along the bracket 1041 to drive the mounting plate 1043 to lift, so as to realize the lifting of the self-resetting deformation element 101, the air blowing element 102 and the detection element 103. Specifically, the bracket 1041 may be provided with a slide rail for sliding the lifting cylinder 1042, and when the lifting cylinder is specifically installed, the blowing member 101 may be detachably connected, so as to be conveniently detached, replaced, and position-adjusted.

As shown in fig. 1, 5 and 6, the gear train engagement detection system 10 for intelligent production of an electromechanical valve of a gas meter further includes an index plate 105 for conveying a gear train 20 of a transmission case, a tooling fixture 1051 is disposed on the index plate 105, a transmission case cover 30 is positioned on the tooling fixture 1051, and the gear train 20 of the transmission case is mounted on the upper end of the transmission case cover 30; the lower end of the dividing disc 105 is also provided with a divider 1052.

Index plate 105 is used for intermittent type to carry gearbox lid 30 to accomplish the categorised installation of gear on the gearbox lid 30, it is specific, be equipped with the constant head tank that pairs with gearbox lid 30 on the tool fixture 1051 and be used for fixed gearbox lid 30, the decollator 1052 then is used for driving index plate 105 intermittent type and rotates.

After the gear is installed, the gearbox cover body 30 is conveyed to the position of the gear set meshing detection system 10 for intelligent production of the electrovalve of the gas meter through the dividing disc 105, and in the conveying process, the gearbox gear set 20 is in contact with the self-resetting deformation piece 101 to realize auxiliary meshing. In the embodiment, the rotation of the index plate 105 drives the gearbox gear set 20 to rotate, the conveying track of the gearbox gear set 20 is stable and accurate, so that the contact position and the area of the gearbox gear set 20 and the self-resetting deformable part 101 can be ensured, the accuracy and the effectiveness of gear meshing assistance at each time can be ensured, and the detection precision can be ensured when the gearbox gear set 20 is accurately stopped at the detection position required by the gear meshing detection system 10 for intelligent production of the electromechanical valve of the gas meter.

Referring to fig. 7, a gear train engagement detection method 40 for a transmission according to a second embodiment of the present invention is disclosed based on a gear train engagement detection system 10 for smart production of gas meter electromechanical valves, comprising:

step 401, conveying the gearbox gear set 20 according to a gearbox gear set conveying track.

In this step, the gearbox gear set 20 can be transported by the indexing disc 105, and can be precisely stopped at different positions, and the detection position can be precisely controlled.

Step 402, the self-resetting deformation piece 101 is in contact deformation with a gear in the gearbox gear set 20 in the conveying process of the gearbox gear set 20, and the gear in the gearbox gear set 20 is driven to rotate to complete primary meshing;

in the step, the self-resetting deformation piece 101 is located on a transmission track of the gearbox gear set, the gearbox gear set 20 is in contact with the self-resetting deformation piece 101 in the transmission process, and slight actions such as shaking, floating, fluctuating or rotating of an internal gear of the gearbox gear set 20 can be driven after the self-resetting deformation piece 101 is in contact deformation, so that mutual tooth grooves and gear teeth are meshed with each other, and the meshing of the internal gear of the gearbox gear set 20 is assisted.

Step 403, the transmission gear set 20 is continuously conveyed until the conveying is stopped after the detection position is reached.

And step 404, continuously blowing air by the air blowing piece 102, and driving any one of the first stage and the last stage in the gearbox gear set 20 to drive through air flow.

In this step, the blowing member 102 can control the flow rate and flow rate in advance, so as to ensure that the blown gas can drive the gear to transmit without being too large, and only needs to drive any gear of the first stage or the last stage to rotate.

Step 405, the opening detection component 103 detects the number of rotating teeth of another gear in the first stage or the last stage of the transmission gear set 20 in unit time, and determines whether the transmission gear set 20 is meshed or not based on the detection result of the number of the rotating teeth, so that the detection is completed.

In this step, when the air-blowing part 102 drives any one of the first stage or the last stage to rotate, because the gears are meshed with each other, the rest gears in the first stage or the last stage can rotate, and then the number of the rotating teeth of the gears is detected, so that the known transmission ratio, the number of the teeth of each gear, the diameter and the like of the gearbox gear set 20 can be passed through, more data such as the number of the rotating turns of the gears, the angle, the angular speed and the like are obtained, whether the gearbox gear set 20 is meshed or not can be determined based on the comparison of the number of the rotating turns, the angle, the angular speed and the like and a normal meshing calculation value, and the meshing detection is realized.

According to the method 40 for detecting the meshing of the gear set of the gearbox, the internal gear of the gear set 20 of the gearbox is subjected to auxiliary meshing in advance by using the self-resetting deformation piece 101 before detection, the assembly and meshing precision of the gear is improved, false detection caused by the fact that the gear is not meshed is reduced, the air blowing piece 102 serves as a power source mechanism for gear transmission in the gear set 20 of the gearbox, the gear is driven to carry out gear transmission by using non-contact flowing gas, the gear can shake, float, fluctuate and the like through the gas while stable transmission is guaranteed, further meshing of the non-meshed gear is guaranteed, the meshing precision is improved, the rejection rate is reduced, non-contact power input is achieved, the problems that the gear is broken and the gear is clamped due to incomplete meshing after the gear set is rigidly connected with a power mechanism can be avoided, and the method has the characteristics of being high in detection precision, small in error rate, stable in transmission and good in gear protection.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.