Gear set meshing detection system and method for intelligent production of electromechanical valves for gas meters

Abstract

The present invention discloses a gear set meshing detection system for the intelligent production of electromechanical valves of gas meters. The system is provided with: a self-resetting deformable member on the transmission track of the gear set of the transmission, which is used to contact and deform with the transmission gear set of the transmission to drive the gears in the gear set of the transmission to rotate and mesh; an air blowing member, which is used to blow air to drive the gears in the gear set of the transmission to mesh and transmit through the flow of gas; the self-resetting deformable member and the air blowing member are arranged in sequence along the transmission track direction of the gear set of the transmission; and also includes a detection member, which is used to detect the number of rotating teeth of another gear in the first or last stage of the gear set of the transmission. The present invention uses the self-resetting deformable member to initially mesh the gears in the gear set of the transmission, and then drives the gears to transmit by blowing air without contact with the air blowing member, and finally detects by the detection member, thereby ensuring that the gears are in a fully meshed state during the detection, ensuring the accuracy and effectiveness of the gear detection, and reducing the scrap rate.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing equipment, and in particular to a gear set meshing detection system for the intelligent production of electromechanical valves of gas meters. Background Art

[0002] The electromechanical valve of the gas meter is used to realize the opening and closing and anti-jamming of the gas meter. The electromechanical valve of the gas meter is mainly composed of a motor, a gearbox (speed gearbox) and a valve stem actuator. During the automatic processing of the speed gearbox, the gear shaft and gear set need to be installed on the cover of the speed gearbox. After the installation is completed, the material is discharged and enters the next process.

[0003] When installing the gear set, the gear set is composed of multiple double gears and single gears installed in sequence according to the upper and lower stacking structure. After all the gears are installed, the gear set needs to be tested for engagement. If the test fails, it will be treated as scrap to screen out gears with casting defects. However, since it is impossible to ensure that the gears are installed in place after the automation gears are installed, the gear meshing cannot be ensured. As a result, during the gear set engagement test, gear sets that meet the requirements are often tested as unqualified due to incomplete meshing, resulting in increased scrap rate and cost. In addition, since the gears are all very small plastic lightweight structures, in order to avoid gear falling off and damage (stuck teeth, broken teeth, etc.), it is impossible to use external drive structures (motors, racks, etc.) to drive the gear transmission for testing, and it is impossible to avoid the problem of detection errors due to inadequate gear meshing, which brings many difficulties to gear detection. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a gear set meshing detection system for the intelligent production of gas meter electromechanical valves. The system can assist in the meshing of the gears inside the gearbox gear set before detection, and the gear transmission inside the gearbox gear set adopts a contactless drive method, which has the characteristics of good gear protection, stable gear transmission and small detection error.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions: a gear set meshing detection system for the intelligent production of gas meter electromechanical valves, which is provided on the transmission track of the gear set of the gearbox: a self-resetting deformable member, which is used to contact and deform with the transmission gear set, and the friction force generated by the contact between the two and / or the self-resetting deformation force generated by the deformation of the self-resetting deformable member drives the gears inside the gear set of the gearbox to rotate and mesh; an air blowing member, which is used to blow air to drive the gears inside the gear set of the gearbox to mesh and transmit through the flow of gas, and the blowing direction of the air blowing member points to the inner tooth surface of the tooth groove of any gear in the first or last stage of the gear set of the gearbox; the self-resetting deformable member and the air blowing member are arranged in sequence along the transmission track of the gear set of the gearbox; and also includes a detection member, which is arranged after the self-resetting deformable member or the air blowing member, and is used to detect the number of rotating teeth of another gear in the first or last stage of the gear set of the gearbox.

[0006] In this technical solution, the self-resetting deformation member is a self-resetting soft elastic member.

[0007] In this technical solution, the self-resetting soft elastic member is a brush.

[0008] In this technical solution, the self-resetting deformation member is vertically arranged, and its lower end can be deformed by contacting with one or more gears in the gearbox gear set.

[0009] In this technical solution, the blowing direction of the air blowing member is directed obliquely downward toward the wheel surface of any gear in the first-stage gear or the last-stage gear.

[0010] In this technical solution, the angle between the blowing direction and the wheel surface of any gear in the first-stage or last-stage gear is 3°~20°.

[0011] In this technical solution, the blowing port of the air blowing member is 5-15 mm away from any gear in the first or last stage, the diameter of the blowing port is 0.5-2 mm, and the blowing volume of the air blowing member is 800-1500 ml / min.

[0012] In this technical solution, the air blowing member is a capillary tube.

[0013] In this technical solution, the air blowing member is also connected to an air supply system with a flow control component.

[0014] In this technical solution, the detection member is a lens optical fiber, which is vertically arranged and points to the teeth of another gear in the first stage or the last stage.

[0015] This technical solution also includes a lifting component, and the self-resetting deformation component, the air blowing component and the detection component are all arranged on the lifting component.

[0016] In this technical solution, the lifting assembly includes a bracket, a lifting cylinder connected to the bracket and a mounting plate arranged on the lifting cylinder, and the self-resetting deformation part, the air blowing part and the detection part are all arranged on the mounting plate.

[0017] This technical solution also includes a dividing plate for conveying the gear set of the gearbox, on which a tooling fixture is provided, on which a gearbox cover is positioned, and on which the gearbox gear set is mounted on the upper end of the gearbox cover; a divider is also provided at the lower end of the dividing plate.

[0018] In summary, the present invention has the following beneficial effects compared with the prior art:

[0019] 1. Before the detection, the present invention uses a self-resetting deformable part to initially mesh the gears in the gearbox gear set, and then uses an air blowing part to blow air without contact to drive the gear transmission, and finally uses a detection part to detect, thereby ensuring that the gears are in a fully meshed state during the detection, ensuring the accuracy and effectiveness of the gear detection, and reducing the scrap rate. Secondly, the self-resetting deformable part is used to assist the gear meshing and then the air blowing part is blown without contact, thereby extremely protecting the integrity of the gears, avoiding damage caused by the gears being squeezed, having good protection for the gears, and the transmission is extremely stable, and the detection success rate is extremely high.

[0020] 2. The present invention is based on an air blowing piece, which is used to blow air, and then the gas flow is used to drive the gear transmission in the gear set, thereby realizing the gear transmission basis required for detection, and there is no rigid contact between the gas and the gear. The gear will produce slight shaking or floating during the gas blowing process, and then the shaking or floating process can assist the meshing of the gear teeth between adjacent gears, ensuring that the gears in the gear set can achieve complete meshing, and the gears will not be squeezed and damaged due to inadequate meshing, and the continuous blowing of the air blowing piece can also ensure that the gears can be stably transmitted, thereby ensuring the detection results.

[0021] 3. The present invention provides a self-resetting deformable member with a deformation effect and the ability to automatically restore its shape, which contacts the gear set of the gearbox during the conveying process. Due to its deformation effect, the self-resetting deformable member contacts and deforms with the gear set of the gearbox during the conveying process, and the self-resetting deformable member and the gear set of the gearbox generate contact friction. At the same time, due to the deformation, the self-resetting deformable member generates a reset deformation force, and based on the friction force and / or the deformation force, the gears in the gear set of the gearbox can be driven to produce slight movements such as shaking, floating, fluctuating or rotating. When the gears that are not meshed or not fully meshed perform the above actions, the tooth grooves and gear teeth of each other are more easily meshed together, thereby achieving an auxiliary meshing effect in the gear set of the gearbox, ensuring that the gears are fully meshed and thus ensuring the accuracy of the detection results, and restoring the original state after the deformation is completed, so as to achieve the purpose of repeated use.

[0022] 4. The self-resetting deformation member of the present invention specifically adopts a self-resetting soft elastic member. Due to its softness, it can avoid damaging the gear by interacting with the rigidity of the gear, and extremely protect the integrity of the gear. Moreover, its deformation is also a flexible deformation, and the deformation force will not increase dramatically due to the increase in deformation amount. It can avoid excessive deformation force that causes the gear to pop out of the gear shaft or excessively squeeze the gear contact surface to damage the gear.

[0023] 5. The present invention utilizes a brush as a self-resetting soft elastic member. Since the brush head of the brush is composed of a number of fine bristles, after it contacts the gear set of the gearbox, it can perform local adaptive deformation corresponding to the gear structure and gear position, so that it can contact different gears and produce different deformation directions and deformation amounts. It can not only drive the movement of the corresponding gears well, so that different gears produce different movements or displacements, and improve the probability of meshing, but also can minimize the damage and extrusion to the gears, and extremely protect the gear structure.

[0024] 6. The present invention can realize the lifting and lowering of the self-resetting deformation part, the air blowing part and the detection part through the lifting assembly, and then the height and position of the three can be adjusted according to the detection needs, which is convenient for the installation and adjustment of the three.

[0025] 7. The present invention can position the gearbox cover body through the dividing plate, and can ensure that the trajectory of the gearbox gear set on the gearbox cover body is always consistent through rotation, which can further ensure the contact and contact position between the self-resetting deformation member and the gearbox gear set each time, ensure that the auxiliary effect is basically consistent each time, and control the conveying stop position through the divider to ensure that the gearbox gear set can be positioned and stopped at the detection position, thereby improving the detection accuracy.

[0026] The present invention also discloses a gearbox gear set meshing detection method, comprising:

[0027] conveying the gearbox gear set according to the conveying trajectory of the gearbox gear set;

[0028] The self-resetting deformation member contacts and deforms with the internal gear of the gearbox gear set during the transmission process of the gearbox gear set, driving the internal gear of the gearbox gear set to rotate and complete the initial meshing;

[0029] The transmission gear set is continuously conveyed until it reaches the detection position and then stops conveying;

[0030] The air blowing part blows air continuously, and drives any gear in the first or last stage of the gearbox gear set through the flow of gas;

[0031] The detection component is turned on to detect the number of rotating teeth of another gear in the first stage or the last stage of the gearbox gear set per unit time. Based on the detection result of the number of rotating teeth, it is determined whether the gearbox gear set is engaged to complete the detection.

[0032] The gearbox gear set meshing detection method has the characteristics of high detection accuracy, small error rate, stable transmission and good gear protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0034] Figure 1 Schematic diagram of the gear set meshing detection system used in the intelligent production of gas meter electromechanical valves Figure 1 ;

[0035] Figure 2 It is a schematic diagram of the structure of the gearbox gear set;

[0036] Figure 3 It is a schematic diagram of the structure of the gear tooth surface on the inner side of the tooth groove;

[0037] Figure 4 yes Figure 1 A magnified view of the structure at C in the middle;

[0038] Figure 5 This is a schematic diagram of the structure of the gear set meshing detection system used in the intelligent production of gas meter electromechanical valves. Figure 2 ;

[0039] Figure 6 It is a schematic diagram of the structure of the gearbox cover;

[0040] Figure 7 is a flow chart of a method for detecting engagement of a gear set of a transmission;

[0041] The numbers in the figure represent:

[0042] 10- Gear set meshing detection system for intelligent production of electromechanical valves for gas meters;

[0043] 101- self-resetting deformation member;

[0044] 102-air blowing parts;

[0045] 103-test piece;

[0046] 104-lifting assembly; 1041-bracket; 1042-lifting cylinder; 1043-mounting plate;

[0047] 105- indexing plate; 1051- tooling fixture; 1052- divider;

[0048] 20-transmission gear set;

[0049] 30-gearbox cover;

[0050] 40. Gearbox gear set meshing detection method; DETAILED DESCRIPTION

[0051] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0052] like Figure 1 , Figure 2 and Figure 3 As shown, the first embodiment of the present invention mainly discloses a gear set meshing detection system 10 for intelligent production of electromechanical valves of gas meters, which at least includes: a self-resetting deformable member 101 arranged on the transmission track of the gear set of the gearbox, the self-resetting deformable member 101 is used to contact and deform with the transmission gear set 20, and the internal gears of the gear set 20 are driven to rotate and mesh based on the friction force generated by the contact between the two and / or the self-resetting deformation force generated by the deformation of the self-resetting deformable member 101; an air blowing member 102 is used to blow air to drive the internal gears of the gear set 20 to mesh and transmit through the gas flow, and the blowing direction of the air blowing member 102 points to the inner side gear tooth surface A of the tooth groove of any gear in the first or last stage of the gear set 20; the self-resetting deformable member 101 and the air blowing member 102 are sequentially arranged along the transmission track direction of the gear set; and also includes a detection member 103, which is arranged after the self-resetting deformable member 101 or the air blowing member 102, and is used to detect the number of rotating teeth of another gear in the first or last stage of the gear set 20.

[0053] The gear set meshing detection system 10 for the intelligent production of gas meter electromechanical valves is mainly used for the meshing detection of the transmission gear set 20 after installation. It can detect the gear transmission condition based on the detection part 103, so as to screen out unqualified products with casting defects or assembly defects through detection. Before the detection of the detection part 103, based on the contact deformation of the self-resetting deformation part 101, the gears in the transmission gear set 20 are assisted to rotate and mesh, which can avoid the problem of misdetection caused by incomplete gear meshing due to improper assembly, and the air blowing part 102 is used for contactless air blowing to drive the gear transmission in the transmission gear set 20, so as to provide power for the meshing detection of the transmission gear set 20, and the gear meshing can be further assisted during the blowing process to ensure that all gears are fully meshed, thereby ensuring stable and safe transmission drive while improving the gear meshing degree, and further improving the detection effect.

[0054] like Figure 4 As shown, the self-resetting deformable member 101 is mainly used for auxiliary meshing of the gears of the gearbox gear set 20 before the meshing test, to ensure that the gears that meet the requirements can be fully meshed to meet the test requirements, avoid false detection, and improve the success rate of the test. In actual use, the gearbox gear set 20 is transported on its conveying track, and the self-resetting deformable member 101 is located on the conveying track of the gearbox gear set 20 and contacts it. Based on the friction force generated by the contact between the two, and / or the self-resetting deformation force generated by the self-resetting deformable member 101 after the contact deformation, the gear on the gearbox gear set 20 that contacts the self-resetting deformable member 101 is driven to produce a slight movement to achieve meshing.

[0055] Specifically, the self-resetting deformable member 101 is an auxiliary member having a deformation force and can automatically restore its shape to its original state. The self-resetting deformation force generated by deformation drives the gears in the gearbox gear set 20 to produce the above-mentioned action, which can be one or more combinations of shaking, floating, fluctuation or rotation of the gears. When the unengaged or incompletely engaged gears on the gearbox gear set 20 perform the above actions, the tooth grooves and teeth of the adjacent gears can be fine-tuned in position, and the two are easier to mesh, thereby achieving the auxiliary meshing effect of the gears in the gearbox gear set 20. The self-resetting deformable member 101 can also restore to its original state after completing the deformation and be reused.

[0056] Based on the above, the self-resetting deformable member 101, as a deformation auxiliary member, can be a non-elastic member that only uses contact friction to drive the gear to rotate, such as cotton, cloth, plastic, baffle, etc.; it can also be an elastic member that mainly uses contact friction and / or elastic deformation to drive the gear to rotate. The elastic member can be a metal or non-metallic sheet, strip or wire, and the metal or non-metal can be plastic, rubber, sponge, memory sponge, memory alloy, etc. The elastic member can also be an elastic reset structure composed of some deformable members and other mechanisms, such as a spring paddle mechanism composed of a spring and a paddle, a brush composed of elastic bristles and a brush handle, etc. Further, the self-resetting deformable member 101 can be a self-resetting soft elastic member. Through its soft characteristics, when it is deformed in contact with the gear set 20, the gear set 20 being transported will not scratch or damage the gear during the continuous friction with it, thus protecting the gear very well. Specifically, the self-resetting soft elastic member is a brush, and the bristles of the brush are deformed after contacting the gears. Since the brush head of the brush is composed of a number of fine bristles, after contacting the gear set 20 of the gearbox, it can perform local adaptive deformation corresponding to the gear structure and gear position, so that it can contact different gears and produce different deformation directions and deformation amounts. It can not only drive the movement of the corresponding gears well, so that different gears produce different movements or displacements, and improve the probability of meshing, but also can minimize the damage and extrusion to the gears, and extremely protect the gear structure.

[0057] In order not to affect the conveying of the gearbox gear set 20, the self-resetting deformable member 101 is vertically arranged, and its lower end can be deformed by contacting with one or more gears in the gearbox gear set 20. Then, on the conveying track of the gearbox gear set 20, only the lower end portion of the self-resetting deformable member 101 is in contact with the gearbox gear set 20, thereby deforming by contacting with one or more gears in the gearbox gear set 20. After deformation, its deformation elastic force will generate at least one downward component force, and then when driving one or more gears in the gearbox gear set 20 to move, the gears will be subjected to a downward pressure, which will not cause the gears to fall off the gear shaft, and the assembly position of the gears can be maintained very well.

[0058] It should be noted that when the self-resetting deformable member 101 contacts the gears inside the transmission gear set 20, some resistance will be generated to cause the gears to rotate. However, since the gear structure is light and easy to damage, the resistance should not be too large. Therefore, when this embodiment is used specifically, in order to avoid excessive resistance, the resistance of the self-resetting deformable member 101 will generally be very small, which makes it possible for the resistance to guarantee stable, comprehensive and effective driving of the gears. Therefore, for the effectiveness of gear driving, this embodiment considers using friction or deformation force to drive the gears, so as to achieve a good meshing assisting effect on the basis of protecting the gears, but does not rule out the possibility that the self-resetting deformable member 101 can also drive the gears based on contact resistance.

[0059] Continue reading Figure 1 , Figure 2 , Figure 3 and Figure 4 The air blowing member 102 serves as a power source structure for the transmission of the gear set 20. The air blowing member 102 is used to blow air toward the inner tooth surface A of the tooth groove of any gear in the first or last stage gear in the gear set 20. The gas flow is driven by the blowing to drive the first or last stage gear to rotate, and then the meshing transmission of the internal gears of the entire gear set 20 is driven through the meshing relationship, thereby realizing the transmission of the internal gears of the gear set 20 and providing a transmission basis for the meshing detection of the gear set 20.

[0060] Specifically, the air blowing member 102 drives the gear meshing transmission inside the gearbox gear set 20 through the contactless air blowing principle. The gears will not be damaged by force due to squeezing or improper assembly or meshing, and the integrity of the gears can be well guaranteed. During the blowing process, the first-stage or last-stage gear will produce slight shaking or floating under the gas blowing. When shaking or floating, the adjacent gear teeth can be stuck in the tooth grooves of the adjacent gears. Based on this principle, all gears can be meshed under slight shaking, and all gears in the gearbox gear set 20 are assisted to achieve complete meshing, thereby improving the detection success rate. In addition, due to the shaking, floating and no external force contact, the interaction force between the gears can be reduced while assisting the meshing, further reducing the extrusion damage between the gears due to improper meshing, protecting the gear structure, and continuous blowing of the air blowing member can also ensure stable transmission of the gears without affecting the detection results.

[0061] It should be noted that the gearbox gear set 20 is arranged on the gearbox cover, which has a supporting structure, and its internal gear is light in weight, and will not be tilted or displaced during the air blowing process and can rotate, so it is feasible to use the air blowing structure for air blowing transmission. Secondly, the first or last gear mentioned above refers to the gear B located at the first or last stage of the gearbox gear set 20, such as Figure 2As shown, or according to the transmission mode, the first-stage or final-stage gear refers to the active transmission gear or the output transmission gear in the gearbox gear set 20. Therefore, in actual use, the blowing direction of the air blowing member 102 can be directed to the inner tooth surface A of the tooth groove of the first-stage gear in the gearbox gear set, or it can be directed to the inner tooth surface A of the tooth groove of the final-stage gear in the gearbox gear set. This embodiment is not specifically limited. Finally, it is further explained that the inner tooth surface A of the tooth groove refers to the tooth side surface on any side of the tooth groove on the gear, such as Figure 3 shown.

[0062] like Figure 4 As shown, in order to ensure the transmission effect and non-contact, the blowing port of the air blowing member 102 of this embodiment is located above the wheel surface of the first-stage or final-stage gear. The air blowing member 102 is located above the wheel surface of the first-stage or final-stage gear that needs to be blown, so that when the first-stage or final-stage gear is driven, no excess gas will be generated and blown to other gears, which can effectively avoid the transmission effect of the gas on other gears, ensure the normal transmission of all gears, ensure the transmission effect, improve the accuracy of the detection results, and the air blowing member 102 does not contact the first-stage or final-stage gear, and will not affect its transmission and the overall transmission of the gearbox cover. It should be noted that the wheel surface of the first-stage or final-stage gear refers to the two side surfaces of the first-stage or final-stage gear that are perpendicular to the central axis.

[0063] Specifically, when the air blowing member 102 is set, the blowing direction of the air blowing member 102 is directed obliquely downward to the wheel surface of the first-stage or last-stage gear. When the air blowing member 102 blows, in order to ensure that the first-stage or last-stage gear can be driven and reduce the large loss or excess gas generated when the air blowing member 102 blows and affects the transmission of other gears, when the air blowing member 102 is set, the blowing direction of the air blowing member 102 is directed obliquely downward to the wheel surface of the first-stage or last-stage gear, that is, to ensure the rotation of the first-stage or last-stage gear, reduce the waste of gas, and control the transmission rate of the first-stage or last-stage gear by controlling the gas flow, so as to facilitate the adjustment of the transmission parameters required for the detection, and the blowing direction is directed obliquely downward to the wheel surface of the first-stage or last-stage gear, and can also provide a downward pressure on the first-stage or last-stage gear, so as to prevent the gear from floating too much during the gas flow and falling off the shaft, thereby ensuring the assembly accuracy of the gear.

[0064] As a supplement, when the blowing direction of the air blowing member 102 is directed obliquely downward toward the wheel surface of the first-stage or last-stage gear, the angle between the blowing direction and the wheel surface of the first-stage or last-stage gear is 3° to 20°. When the air blowing member 102 blows air, if the angle between the blowing direction and the wheel surface of the first-stage or final-stage gear is too large, a large amount of gas will be lost, and the downward component force will be too large, affecting the transmission of the first-stage or final-stage gear, and causing the gas to scatter randomly under the action of the gear teeth, which may affect the uniformity of the transmission speed and the detection result. In addition, the driving force required for the first-stage or final-stage gear increases, further increasing the demand for gas volume per unit time and increasing the energy consumption of the air blowing member 102. If the angle between the blowing direction and the wheel surface of the first-stage or final-stage gear is too small, most of the gas cannot contact the inner tooth surface A of the tooth groove and is blown away, reducing the work efficiency and increasing the gas loss. Therefore, in actual use, the angle between the blowing direction and the wheel surface of the first-stage or final-stage gear is preferably 3°~20°, so as to ensure the stable transmission of the first-stage or final-stage gear A at the minimum energy consumption and reduce energy consumption. Further, the angle between the blowing direction and the wheel surface of the first or last gear can be 3°~5°, 5°~8°, 8°~12°, 12°~18°, 18°~21°, 21°~25°. Specifically, the angle between the blowing direction and the wheel surface of the first or last gear is 12°.

[0065] To ensure the transmission effect of the gears and reduce the impact of gas on other gears, the blowing port of the air blowing member 102 of this embodiment is set 5-15mm away from the first-stage or final-stage gear, the diameter of the blowing port is 0.5-2mm, and the blowing volume of the air blowing member 102 is 800-1500ml / min.

[0066] First, the blowing port of the air blowing member 102 is set at a distance of 5 to 15 mm from the first or last gear. First, it can ensure that the distance between the gas and the first or last gear after blowing is too far, which causes the gas direction to disperse, affecting the accuracy of the air blowing direction and the driving effect. Second, it can ensure that the blowing speed of the gas meets the detection requirements or the transmission requirements of the first or last gear. Third, it further reduces the influence of external force factors on other gear transmissions caused by gas dispersion, which causes transmission fluctuations and ensures the gear detection accuracy. Further, the blowing port of the air blowing member 102 is spaced 5 to 7 mm, 7 to 9 mm, 9 to 11 mm, 11 to 13 mm, and 13 to 15 mm from the first or last gear. Specifically, the blowing port of the air blowing member 102 is spaced 9 mm from the first or last gear A. It should be noted that the spacing between the blowing port of the air blowing member 102 and the first or last gear refers to: the distance between the blowing port and the center axis of the first or last gear.

[0067] Secondly, the caliber of the air blowing port of the air blowing member 102 is 0.5-2 mm, which can ensure that the gas is ejected at a more reasonable aperture, ensure the blowing direction, and reduce gas diversion. Further, the caliber of the air blowing port of the air blowing member 102 can be 0.5 mm, 0.75 mm, 1 mm, 1.25 mm, 1.5 mm, 1.75 mm or 2 mm. Specifically, the caliber of the air blowing port of the air blowing member 102 is 1 mm.

[0068] Here, the present embodiment can further limit the air blowing position, and direct the blowing direction of the air blowing member 102 to the inner tooth surface A of the tooth groove of the first-stage or final-stage gear in the gear set of the gearbox, and the inner tooth surface A of the tooth groove is preferably the tooth surface away from one end of the gear meshing with the first-stage or final-stage gear, thereby maximally reducing the gas diversion during blowing and causing influence on other gears, thereby ensuring the stability of the meshing transmission rate.

[0069] As the air blowing structure of this embodiment, the air blowing member 102 preferably adopts a capillary tube for blowing to ensure that the blowing direction and speed can be maintained for a long time after the gas is blown out. Further, the capillary tube can be made of a gooseneck tube to facilitate the adjustment of the blowing direction.

[0070] In order to better achieve the blowing effect of the air blowing member 102, the air blowing member 102 of this embodiment is also connected to an air supply system with a flow control component. The air supply system (not shown in the figure) of this embodiment can continuously supply air to the air blowing member 102, and control the flow rate, flow velocity, etc. of the supplied gas under the action of the flow control component. Specifically, the flow control component can be a flow valve, a flow velocity valve, a regulating valve, etc., and the air supply system can be an air pump, an air cylinder, an air bag, etc.

[0071] like Figure 1 , Figure 4 As shown, the detection member 103 is used to detect the number of rotating teeth of the gears that are not blown in the first or last stage of the gearbox gear set 20. When the air blowing member 102 blows air to the first stage gear, the detection member 103 is arranged behind the self-resetting deformation member 101, between the self-resetting deformation member 101 and the air blowing member 102, and detects the last stage gear. When the air blowing member 102 blows air to the last stage gear, the detection member 103 is arranged behind the air blowing member 102 and detects the first stage gear.

[0072] It should be noted that the rotating teeth number refers to the rotating gear teeth number detected by the corresponding gear in a unit time. Specifically, after all the gears in the gearbox gear set 20 are meshed, when the first-stage or last-stage gears are blown, the remaining first-stage or last-stage gears that are not blown rotate under the meshing drive, and the detection member 103 can detect the rotating teeth number of the gear when the gear rotates. The above-mentioned rotating teeth number can also be converted into the number of circles, angles, angular speeds, etc. when the gear rotates according to the transmission ratio, diameter, total number of teeth, speed, etc. of the gears in the gearbox gear set 20. Because the detection of the rotating teeth number is convenient and the error is small, no further conversion is required. Therefore, this embodiment selects but does not limit the rotating teeth number as the detection factor, and the number of circles, angles, angular speeds, etc. can also be obtained by conversion as the detection factor. The conversion can be reasonably derived through the existing technology, and this embodiment will not be repeated.

[0073] Specifically, the detection member 103 is a lens fiber, which is vertically arranged and points to the gear teeth of the non-blown gear in the first or last stage. When the non-blown gear in the first or last stage rotates, the gear teeth rotate once, the detection path of the lens fiber is blocked by the gear teeth, and the frequency of the light in the lens fiber changes, which is recorded once, thereby realizing the detection of the number of rotating teeth. After the detection, the lens fiber is used to transmit data and the data can be analyzed by other data analysis equipment to obtain the detection result.

[0074] like Figure 1 , Figure 5 As shown, the gear set meshing detection system 10 for intelligent production of gas meter electromechanical valves also includes a lifting assembly 104, and the self-resetting deformable member 101, the air blowing member 102 and the detection member 103 are all arranged on the lifting assembly 104. The lifting assembly 104 is used for supporting and height adjusting the self-resetting deformable member 101, the air blowing member 102 and the detection member 103.

[0075] 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 provided on the lifting cylinder 1042, and the self-resetting deformable member 101, the air blowing member 102, and the detection member 103 are all provided on the mounting plate 1043. The bracket 1041 is used to fix and support the lifting cylinder 1042, and the lifting cylinder 1042 can be lifted and lowered along the bracket 1041 to drive the mounting plate 1043 to lift and lower, thereby realizing the lifting and lowering of the self-resetting deformable member 101, the air blowing member 102, and the detection member 103. Specifically, a slide rail may be provided on the bracket 1041 for the lifting cylinder 1042 to slide, and during the specific installation, the air blowing member 102 may be connected in a detachable manner, which is convenient for disassembly, replacement, and position adjustment.

[0076] like Figure 1 , Figure 5 and Figure 6As shown, the gear set meshing detection system 10 for the intelligent production of gas meter electromechanical valves also includes a dividing plate 105 for conveying a gearbox gear set 20, and a tooling fixture 1051 is provided on the dividing plate 105, and a gearbox cover body 30 is positioned on the tooling fixture 1051, and the gearbox gear set 20 is installed on the upper end of the gearbox cover body 30; a divider 1052 is also provided at the lower end of the dividing plate 105.

[0077] The dividing plate 105 is used to intermittently convey the gearbox cover body 30 to complete the classified installation of the gears on the gearbox cover body 30. Specifically, the tooling fixture 1051 is provided with a positioning groove matched with the gearbox cover body 30 for fixing the gearbox cover body 30, and the divider 1052 is used to drive the dividing plate 105 to rotate intermittently.

[0078] When the gears are installed, the gearbox cover 30 is transported to the position of the gear set meshing detection system 10 for the intelligent production of gas meter electromechanical valves through the indexing plate 105. During the transportation process, the gearbox gear set 20 contacts the self-resetting deformable member 101 to achieve auxiliary meshing. In this embodiment, the gearbox gear set 20 is driven to rotate by the rotation of the indexing plate 105, and the conveying trajectory of the gearbox gear set 20 is stable and accurate, so that the contact position and area of ​​the gearbox gear set 20 and the self-resetting deformable member 101 can be ensured, the accuracy and effectiveness of each gear meshing assistance can be ensured, and the gearbox gear set 20 can be accurately stopped at the detection position required by the gear set meshing detection system 10 for the intelligent production of gas meter electromechanical valves, so as to ensure the detection accuracy.

[0079] like Figure 7 As shown, based on the gear set meshing detection system 10 for intelligent production of gas meter electromechanical valves, the second embodiment of the present invention discloses a gearbox gear set meshing detection method 40, which includes:

[0080] Step 401, conveying the gearbox gear set 20 according to the gearbox gear set conveying track.

[0081] In this step, the gearbox gear set 20 can use the indexing plate 105 to achieve transportation, and can accurately perform position separation and pause, and accurately control the detection position.

[0082] Step 402: the self-resetting deformable member 101 is deformed by contacting with the internal gear of the gearbox gear set 20 during the conveying process of the gearbox gear set 20, driving the internal gear of the gearbox gear set 20 to rotate and complete the initial meshing;

[0083] In this step, the self-resetting deformable member 101 is located on the conveying track of the transmission gear set. The transmission gear set 20 contacts the self-resetting deformable member 101 during the conveying process. After the self-resetting deformable member 101 contacts and deforms, it can drive the gears inside the transmission gear set 20 to shake, float, fluctuate or rotate slightly, thereby engaging the tooth grooves and gear teeth with each other, thereby assisting the meshing of the gears inside the transmission gear set 20.

[0084] Step 403 , continuously conveying the transmission gear set 20 until it reaches the detection position and then stops conveying.

[0085] Step 404 , the air blowing member 102 continues to blow air, and drives any gear in the first or last stage of the gearbox gear set 20 through the flow of gas.

[0086] In this step, the air blowing member 102 can control the flow rate and flow rate in advance to ensure that the blowing gas can drive the gear transmission without being too large, and only needs to be able to drive any gear in the first stage or the last stage to rotate.

[0087] Step 405, open the detection member 103 to detect the number of rotating teeth of another gear in the first stage or the last stage of the gearbox gear set 20 per unit time, and determine whether the gearbox gear set 20 is engaged based on the detection result of the number of rotating teeth, thereby completing the detection.

[0088] In this step, when the air blowing member 102 drives any gear in the first stage or the last stage to rotate, the gears are meshed with each other, and the remaining gears in the first stage or the last stage can rotate, and then by detecting the number of rotating teeth of the gear, more data such as the number of rotation circles, angle, angular velocity and other factors of the gear can be obtained through the known transmission ratio, number of teeth of each gear, diameter, etc. of the transmission gear set 20. Based on the comparison of the number of rotating teeth, number of rotation circles, angle, angular velocity, etc. with the normal meshing calculation value, it can be determined whether the transmission gear set 20 is meshed, thereby realizing meshing detection.

[0089] The present gearbox gear set meshing detection method 40 utilizes a self-resetting deformable member 101 to assist in meshing the internal gears of the gearbox gear set 20 before detection, thereby improving the gear assembly and meshing accuracy and reducing false detections caused by gear non-meshing. The air blowing member 102 is used as a power source mechanism for the internal gear transmission of the gearbox gear set 20, and non-contact flowing gas is used to drive the gear transmission. While ensuring stable transmission, the gas can also be used to make the gears shake, float, and fluctuate, thereby ensuring that the unmeshed gears can further mesh, thereby improving the meshing accuracy and reducing the scrap rate. The non-contact power input can also avoid problems such as broken teeth and stuck teeth caused by incomplete meshing of the gear set after the rigid connection power mechanism. The method has the characteristics of high detection accuracy, low error rate, stable transmission and good gear protection.

[0090] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gear set meshing detection system for intelligent production of gas meter electromechanical valves, characterized in that: The following are arranged on the conveying track of the gearbox gear set (20): A self-resetting deformable member (101) is used to deform in contact with the transmission gear set (20) being transported, and to drive the internal gear of the transmission gear set (20) to rotate and mesh based on the friction force generated by the contact between the two and / or the self-resetting deformation force generated by the deformation of the self-resetting deformable member (101); An air blowing member (102) is used for blowing air to drive the internal gears of the gearbox gear set (20) to mesh and transmit through the flow of gas, wherein the blowing direction of the air blowing member (102) is directed toward the inner tooth surface of the tooth groove of any gear in the first stage or the last stage in the gearbox gear set (20); The self-resetting deformation member (101) and the air blowing member (102) are arranged in sequence along the conveying track direction of the gearbox gear set (20); Also includes, A detection member (103) is arranged behind the self-resetting deformation member (101) or the air blowing member (102) and is used to detect the number of rotating teeth of another gear in the first stage or the last stage in the gearbox gear set (20); The self-resetting deformable member (101) is a self-resetting soft elastic member; The detection element (103) is a lens optical fiber, which is vertically arranged and points to the gear teeth of another gear in the first stage or the last stage; It also includes a lifting component (104), on which the self-resetting deformation component (101), the air blowing component (102) and the detection component (103) are all arranged; It also includes a dividing plate (105) for conveying the gearbox gear set (20), the dividing plate (105) being provided with a tooling fixture (1051), a gearbox cover body (30) being positioned on the tooling fixture (1051), and the gearbox gear set (20) being mounted on the upper end of the gearbox cover body (30); A divider (1052) is also provided at the lower end of the indexing plate (105).

2. The gear set meshing detection system for intelligent production of gas meter electromechanical valves according to claim 1 is characterized in that: The self-resetting soft elastic member is a brush.

3. The gear set meshing detection system for intelligent production of gas meter electromechanical valves according to claim 1 is characterized in that: The angle between the blowing direction and the wheel surface of any gear in the first-stage gear or the last-stage gear is 3° to 20°.

4. The gear set meshing detection system for intelligent production of gas meter electromechanical valves according to claim 1 is characterized in that: The air blowing member (102) is a capillary tube.

5. The gear set meshing detection system for intelligent production of gas meter electromechanical valves according to claim 1 is characterized in that: The lifting component (104) comprises a bracket (1041), a lifting cylinder (1042) connected to the bracket (1041), and a mounting plate (1043) disposed on the lifting cylinder (1042); the self-resetting deformation member (101), the air blowing member (102), and the detection member (103) are all disposed on the mounting plate (1043).

6. A method for detecting the meshing of a gear set for the intelligent production of an electromechanical valve of a gas meter, which is implemented based on the gear set meshing detection system for the intelligent production of an electromechanical valve of a gas meter according to any one of claims 1 to 5, characterized in that: include: Conveying the gearbox gear set (20) along a conveying trajectory of the gearbox gear set (20); The self-resetting deformable member (101) contacts and deforms the internal gear of the gearbox gear set (20) during the conveying process of the gearbox gear set (20), driving the internal gear of the gearbox gear set (20) to rotate and complete the initial meshing; The transmission gear set (20) is continuously conveyed until it reaches the detection position and then stops conveying; The air blowing member (102) continuously blows air, and drives any gear in the first stage or the last stage of the gearbox gear set (20) through the flow of gas; The detection member (103) is turned on to detect the number of teeth of another gear in the first stage or the last stage in the gearbox gear set (20) rotated per unit time, and based on the detection result of the number of teeth rotated, it is determined whether the gearbox gear set (20) is meshed, thereby completing the detection.

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