阅读说明：本技术 油缸内成像自动检测装置 (Imaging automatic detection device in oil cylinder ) 是由 徐晓刚 王坤东 于 2019-10-31 设计创作，主要内容包括：本发明涉及工业测量技术领域内的一种油缸内成像自动检测装置,包括支撑机构、伸缩机构、机架以及检测仪；所述支撑机构与所述伸缩机构安装于所述机架上,所述检测仪连接于所述伸缩机构的端部；所述支撑机构用于支撑油缸内成像自动检测装置并实现定位,所述检测仪通过所述伸缩机构实现相对于所述机架的轴向位移。本发明提供的油缸内成像自动检测系统具有结构紧凑、变径范围大、检测距离长等特点。(The invention relates to an imaging automatic detection device in an oil cylinder in the technical field of industrial measurement, which comprises a supporting mechanism, a telescopic mechanism, a rack and a detector, wherein the supporting mechanism is arranged on the rack; the supporting mechanism and the telescopic mechanism are mounted on the rack, and the detector is connected to the end part of the telescopic mechanism; the supporting mechanism is used for supporting the imaging automatic detection device in the oil cylinder and realizing positioning, and the detector realizes axial displacement relative to the rack through the telescopic mechanism. The automatic detection system for imaging in the oil cylinder has the characteristics of compact structure, large diameter-changing range, long detection distance and the like.)

1. An imaging automatic detection device in an oil cylinder is characterized by comprising a supporting mechanism, a telescopic mechanism, a rack (12) and a detector (21);

the supporting mechanism and the telescopic mechanism are mounted on the rack (12), and the detector (21) is connected to the end part of the telescopic mechanism;

the supporting mechanism is used for supporting and positioning the imaging automatic detection device in the oil cylinder, and the detector (21) realizes axial displacement relative to the rack (12) through the telescopic mechanism.

2. The automatic detection device for imaging in the oil cylinder according to claim 1, wherein the supporting mechanism comprises a supporting motor (9) and a supporting plate, a plurality of supporting plates are arranged on the circumferential direction of the rack (12), and the supporting plates are extended and retracted through the supporting motor.

3. The automatic detection device that forms images in hydro-cylinder of claim 2, characterized in that, the backup pad includes first backup pad (6) and second backup pad (15), support motor (9) transmission is connected with first push rod (7) and second push rod (14), first backup pad (6), second backup pad (15) connect respectively in the tip of first push rod (7) and second push rod (14), first push rod (7) with second push rod (14) pass through support motor (9) and realize synchronous opposite directions motion.

4. The imaging automatic detection device in the oil cylinder according to claim 1, characterized in that the telescoping mechanism comprises a telescoping motor (1) and a hinge mechanism (26), and the hinge mechanism (26) is telescoped along the axial direction of the frame (12) through the telescoping motor (1).

5. The imaging automatic detection device in the oil cylinder is characterized in that the hinge mechanism (26) comprises a fork-shaped structure, the fork-shaped structure can realize expansion and contraction, and a plurality of the fork-shaped structures are connected in series to form the hinge mechanism (26).

6. The automatic imaging detection device in the oil cylinder as claimed in claim 5, wherein the fork-shaped structure comprises a bearing rod and a rotating shaft, two ends of the bearing rod are connected into a rectangular structure through the rotating shaft, and the two rectangular structures are connected into the fork-shaped structure which is symmetrical and can rotate around the central rotating shaft through the rotating shaft.

7. The automatic detection device for imaging in the oil cylinder is characterized in that the telescopic motor (1) drives the hinge mechanism (26) to realize telescopic movement through a relative translation mechanism, the relative translation mechanism comprises a lead screw (18), a forward-rotation nut (3), a reverse-rotation nut (16), a first sliding rod (4) and a second sliding rod (13), a gear (19) is connected in the middle of the lead screw (18), the thread directions of the lead screw (18) on two sides of the gear (19) are opposite, the forward-rotation nut (3) and the reverse-rotation nut (6) are respectively screwed at two ends of the lead screw (18), and the first sliding rod (4) and the second sliding rod (13) are respectively connected with the forward-rotation nut (3) and the reverse-rotation nut (6) in a parallel mode.

8. The automatic detection device for imaging in the oil cylinder according to claim 5, further comprising a telescopic rod, wherein one end of the telescopic rod is connected to the frame (12), the other end of the telescopic rod is connected with the central rotating shaft of the fork-shaped structure of the hinge mechanism (26), and the telescopic rod and the hinge mechanism (26) are synchronously telescopic.

9. The imaging automatic detection device in the oil cylinder according to claim 8, characterized in that two sets of the telescopic rods are respectively located at two sides of the hinge mechanism (26).

10. The automatic detection device for imaging in the oil cylinder according to claim 9, wherein the telescopic rod is a multi-stage telescopic rod.

Technical Field

The invention relates to the technical field of industrial measurement, in particular to an automatic imaging detection device in an oil cylinder, and further relates to an imaging detection system which can be used for clamping and fixing in the oil cylinder with large caliber specification change and large depth and driving a detector to go deep into the oil cylinder for shooting.

Background

The hydraulic oil cylinder generally works in low-speed and heavy-load occasions and is widely applied to various industries such as underground coal mines, tunnel construction, engineering machinery, submarine oil exploitation and the like. The general working environment of the hydraulic oil cylinder is severe, moist, corrosive gas or liquid, high temperature and the like, so that the abrasion, aging and corrosion of the hydraulic oil cylinder or the overload cylinder expansion sometimes occur. Therefore, the detection of the hydraulic oil cylinder is very necessary for ensuring the safe operation of the oil cylinder, and the problems can be found out early to prevent accidents.

In-service cylinder detection is generally carried out in the overhaul or maintenance stage, wherein the detection of the surface state of the inner wall is a basic means for finding faults such as corrosion, cracks and the like in the cylinder. At present, the detection of the inner wall of the oil cylinder basically depends on eyes of people to observe, people cannot easily reach under some conditions, and under most conditions, the eyes of people are tired to cause missed detection, so the detection is generally carried out through a camera. The telescopic rod is often used for bringing the camera into the oil cylinder, but the telescopic distance of the telescopic rod is limited, and the visual angle of the tail end of the rod is difficult to control. At present, a lightweight, portable and automatic imaging detection system which can adapt to large variable-diameter oil cylinders with high depth and various specifications is lacked in field measurement.

The search discovery of the prior art shows that Chinese patent publication No. CN204188116U discloses an internal diameter detection device of an oil cylinder barrel, relates to the production and processing technical field of oil cylinder barrels, and is characterized in that: the device comprises a cylindrical vertical rod and a disc base at the bottom of the vertical rod, wherein a screw rod is fixedly arranged at the middle upper part of the vertical rod, nuts are arranged at two ends of the screw rod, and a detection contact is arranged on the side end face of the screw rod. The utility model has the advantages that: the inner diameter of the cylinder barrel of the oil cylinder can be conveniently and quickly detected, and the accuracy is high. And the long screw rod and the short screw rod can be replaced as required to detect the oil cylinder barrels with different inner diameters. This published utility model patent is along with having reduced intensity of labour, nevertheless can't use certainly to the measuring of the hydro-cylinder of high depth heavy-calibre.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an automatic imaging detection device in an oil cylinder, which is suitable for an imaging detection system with high depth and large diameter variation.

The invention provides an automatic detection device for imaging in an oil cylinder, which comprises a supporting mechanism, a telescopic mechanism, a rack and a detector, wherein the supporting mechanism is arranged on the rack; the supporting mechanism and the telescopic mechanism are mounted on the rack, and the detector is connected to the end part of the telescopic mechanism; the supporting mechanism is used for supporting and positioning the imaging automatic detection device in the oil cylinder, and the detector realizes axial displacement relative to the rack through the telescopic mechanism.

In some embodiments, the supporting mechanism includes a supporting motor and a supporting plate, the supporting plate is provided in a plurality around the frame, and the supporting plate is extended and retracted by the supporting motor.

In some embodiments, the supporting plate comprises a first supporting plate and a second supporting plate, the supporting motor is connected with a first push rod and a second push rod in a transmission manner, the first supporting plate and the second supporting plate are respectively connected to the end portions of the first push rod and the second push rod, and the first push rod and the second push rod realize synchronous opposite movement through the supporting motor.

In some embodiments, the telescopic mechanism includes a telescopic motor and a hinge mechanism that is telescopic by the telescopic motor in an axial direction of the housing.

In some embodiments, the hinge mechanism includes a fork-type structure that allows for telescoping, with a plurality of the fork-type structures connected in series to form the hinge mechanism.

In some embodiments, the fork-shaped structure comprises a bearing rod and a rotating shaft, two ends of the bearing rod are connected into a rectangular structure through the rotating shaft, and the two rectangular structures are connected into the fork-shaped structure which is symmetrical and can rotate around the central rotating shaft through the rotating shaft.

In some embodiments, the telescopic motor drives the hinge mechanism to realize telescopic movement through a relative translation mechanism, the relative translation mechanism comprises a screw rod, a forward-rotation nut, a backward-rotation nut, a first sliding rod and a second sliding rod, a gear is connected in the middle of the screw rod and positioned on two sides of the gear, the screw thread directions of the screw rod are opposite, the forward-rotation nut and the backward-rotation nut are respectively screwed at two ends of the screw rod, and the first sliding rod and the second sliding rod are respectively connected with the forward-rotation nut and the backward-rotation nut in a mutually parallel mode.

In some embodiments, the foldable rack further comprises a telescopic rod, one end of the telescopic rod is connected to the rack, the other end of the telescopic rod is connected with the central rotating shaft of the fork-shaped structure of the hinge mechanism, and the telescopic rod and the hinge mechanism are synchronously telescopic.

In some embodiments, two sets of telescoping rods are located on either side of the hinge mechanism.

In some embodiments, the telescoping rod is a multi-stage telescoping rod.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention can implement the in-cylinder automatic detection imaging function on the oil cylinder with high depth and large diameter variation by setting the telescopic amount of the telescopic mechanism, and has the characteristics of compact structure, large diameter variation range, long detection distance and the like.

2. According to the invention, the telescopic mechanism is set to be mechanical and formed by connecting a plurality of groups of fork-shaped structures in series, so that the stability of the telescopic mechanism is improved, and the telescopic length of the telescopic mechanism can be determined according to the actual depth of the oil cylinder to be measured, thereby determining the series connection number of the fork-shaped structures, and the telescopic mechanism is simple and easy to implement and convenient to disassemble and assemble.

3. The tail end of the fork-shaped rod is driven by the lead screw to drive the two nuts with opposite rotation directions, and the lead screw transmission can be self-locked, so that electric energy can be saved and the stability can be improved during fixed-point observation.

4. The hinge is supported by the telescopic rod, so that the overall rigidity and stability of the telescopic mechanism during extension are improved.

5. According to the invention, the number of the supporting plates is set to be 2, so that the whole structure is more compact under the condition of ensuring the supporting effect.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of an automatic detection system for imaging in a high-depth large-reducing oil cylinder according to the present invention;

FIG. 2 is a view showing the structure of the fork-shaped lever of the hinge mechanism of the present invention;

FIG. 3 is a motion diagram of a feed screw nut controlled hinge mechanism of the present invention;

FIG. 4 is a schematic view of the frame bracing mechanism of the present invention;

the figures show that:

Detailed Description

The following examples illustrate the invention in detail: the embodiment is implemented on the premise of the technical scheme of the invention, and a detailed implementation mode and a specific operation process are given. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

The invention provides an imaging automatic detection device in an oil cylinder, which comprises a supporting mechanism, a telescopic mechanism, a rack 12 and a detector 21, wherein the supporting mechanism is arranged on the rack; the supporting mechanism and the telescopic mechanism are mounted on the frame 12, and the detector 21 is connected to the end of the telescopic mechanism; the supporting mechanism is used for supporting the imaging automatic detection device in the oil cylinder and realizing positioning, the positioning mainly refers to that the imaging automatic detection device in the oil cylinder can be observed at a fixed point, and the detector 21 realizes axial displacement relative to the rack 12 through the telescopic mechanism.

The frame 12 is fixed at a certain position in the cylinder through the supporting mechanism, the detector 21 is connected to the end part of the telescopic mechanism, the axial displacement of the detector 21 relative to the frame 12 is realized through the telescopic mechanism, and then the detection imaging is carried out in the cylinder. By setting the telescopic amount of the telescopic mechanism, the automatic detection imaging function of high depth and large reducing diameter can be completed, and the device has the characteristics of compact structure, large reducing diameter range, long detection distance and the like.

Preferably, the supporting mechanism comprises a supporting motor 9 and a plurality of supporting plates, the supporting plates are arranged on the circumferential direction of the frame 12, and the supporting plates extend and retract through the supporting motor. At least 2 support plates are axially arranged on the frame 12, and when more than 2 support plates are arranged, if three support plates are arranged, the support plates can be meshed with a transmission gear of the support motor 9 through a connecting screw rod nut structure to realize the synchronous extension of the support plates so as to realize the function of supporting in the cylinder body of the oil cylinder;

further, under the circumstances of guaranteeing the supporting effect, for making compact structure, preferred backup pad sets up to 2, and 2 backup pads are connected in the both sides of 12 same axes of frames, and accessible rack and pinion transmission structure realizes 2 backup pads simultaneous relative motion to realize that the backup pad supports in the hydro-cylinder body, promptly:

the supporting plates comprise a first supporting plate 6 and a second supporting plate 15, the supporting motor 9 is in transmission connection with a first push rod 7 and a second push rod 14, the first supporting plate 6 and the second supporting plate 15 are respectively connected to the end parts of the first push rod 7 and the second push rod 14, the first push rod 7 and the second push rod 14 realize synchronous opposite movement through the supporting motor 9, specifically,

as shown in fig. 4a, the first support plate 6 and the second support plate 15 of the present embodiment are driven by a support motor 9, the support motor 9 is installed on the pressing plate 8, as shown in fig. 4b, the first support plate 6 and the second support plate 15 are respectively installed at the ends of the first push rod 7 and the second push rod 14, the first push rod 7 and the second push rod 14 are respectively installed with a first rack 7-2 and a second rack 14-2, the first rack 7-2 is parallel to the second rack 14-2 and is simultaneously engaged with a support gear 28 located between the first rack 7-2 and the second rack 14-2, when the support motor 9 drives the support gear 28 to rotate, the first push rod 7 and the second push rod 14 move in opposite directions, and the first support plate 6 and the second support plate 15 are outwardly supported or retracted.

Preferably, the telescopic mechanism comprises a telescopic motor 1 and a hinge mechanism 26, and the hinge mechanism 26 realizes the telescopic action along the axial direction of the frame 12 through the telescopic motor. The hinge mechanism 26 is of a mechanical structure, and is simple to manufacture compared with a hydraulic telescopic mechanism or a pneumatic telescopic mechanism, and the mechanical reciprocating motion has higher stability compared with hydraulic or pneumatic motion.

Preferably, the hinge mechanism 26 includes a fork-type structure, which can be extended and retracted, and a plurality of the fork-type structures are connected in series to form the hinge mechanism 26. The hinge mechanism 26 is formed by connecting a plurality of fork-shaped structures in series, the telescopic length of the hinge mechanism 26 can be determined according to the actual depth of the oil cylinder to be measured, and therefore the series connection number of the fork-shaped structures is determined according to the depth of the oil cylinder, and the hinge mechanism is simple and easy to operate and convenient to disassemble and assemble.

Furthermore, the fork-shaped structure comprises bearing rods and a rotating shaft, two ends of each bearing rod are connected into a closed rectangular fork rod through the rotating shaft, and the two rectangular fork rods are connected into a symmetrical fork-shaped structure capable of rotating around the central rotating shaft through the rotating shaft.

Specifically, the method comprises the following steps:

as shown in FIG. 2, the hinge mechanism 26 in this embodiment is formed by serially mounting the fork-type structures shown in the figure, each of which specifically includes an inner lower shaft 26-1, an outer upper shaft 26-2, a middle shaft 26-3, an outer left shaft 26-4, an inner left shaft 26-5, an inner upper shaft 26-6, an outer lower shaft 26-7, an outer right shaft 26-8, and an inner right shaft 26-9. The middle parts of the inner left side rod 26-5, the inner right side rod 26-9, the outer left side rod 26-4 and the outer right side rod 26-8 are connected through a middle shaft 26-3, the upper parts of the inner left side rod 26-5 and the inner right side rod 26-9 are connected into an inner rod through an inner upper shaft 26-6 and the lower parts are connected into an inner lower shaft 26-1, the upper parts of the outer left side rod 26-4 and the outer right side rod 26-8 are connected into an outer rod through an outer upper shaft 26-2 and the lower parts are connected into an outer rod through an outer lower shaft 26-7, the inner rod and the outer rod can rotate around the middle shaft 26-3 to form fork-shaped structures, the fork-shaped structures are sequentially connected in series to form a hinge mechanism 26, meanwhile, the hinge mechanism 26 extends when the inner lower shaft 26-1 and the outer lower shaft 26-7 of the inward pressing fork-shaped structures, The outer lower shaft 26-7 then the hinge mechanism 26 is retracted. Wherein, the rectangular fork rod is formed by connecting two flat rods through two tail end shafts, the stability of the fork rod can be improved, and the weight of the fork rod can not be obviously increased

Preferably, flexible motor 1 is through the drive of relative translation mechanism hinge mechanism 26 realizes flexible, relative translation mechanism includes lead screw 18, positive nut 3, derotation nut 16, first slide bar 4 and second slide bar 13 and constitutes, lead screw 18 intermediate junction has gear 19, is located the gear 19 both sides the screw thread of lead screw 18 revolves to opposite, positive nut 3 with derotation nut 6 revolve respectively in the both ends of lead screw 18, first slide bar 4 with second slide bar 13 with the mode that is parallel to each other respectively with positive nut 3 with derotation nut 6 sliding connection. Specifically, the method comprises the following steps:

as shown in FIG. 3, the inner lower shaft 26-1 and the outer lower shaft 26-7 at the end of the lowest fork-shaped mechanism of the hinge mechanism 26 are respectively clamped on the left shifting fork 2 and the right shifting fork 17, the left shifting fork 2 and the right shifting fork 17 are respectively fixed on a reverse-rotation nut 16 and a forward-rotation nut 3, the reverse-rotation nut 16 and the forward-rotation nut 3 are screwed on threads with opposite screwing directions at two ends of a screw rod 18, holes on the reverse-rotation nut 16 and the forward-rotation nut 3 penetrate through a first sliding rod 4 and a second sliding rod 13, an output shaft of a telescopic motor 1 is connected with a motor connecting shaft 1-1, a motor gear 5 is fixed on the motor connecting shaft 1-1, the motor gear 5 is meshed with a gear 19, the gear 19 is fixed on the screw rod 10, when the telescopic motor 1 rotates, the screw rod 18 rotates to drive the derotation nut 16 and the forward rotation nut 3 to move oppositely on the first slide bar 4 and the second slide bar 13, and the hinge mechanism 26 is driven to extend or retract. The tail end of the fork-shaped rod is driven by a screw rod to drive two nuts with opposite rotation directions, and the screw rod transmission can be self-locked, so that electric energy can be saved and the stability can be improved when fixed-point observation is carried out.

Preferably, still include the telescopic link, telescopic link one end connect in frame 12, the other end with hinge mechanism 26 the center pivot of fork type structure is connected, the telescopic link with hinge mechanism 26 is synchronous flexible. The telescopic rod supports the hinge mechanism 26 to improve the overall stiffness and stability of the hinge mechanism 26 when extended, preferably the top end of the telescopic rod is connected to a fork-type structure at the top end of the hinge mechanism 26.

Further, the two sets of telescopic rods are respectively connected with the hinge mechanism 26 and located at two sides thereof. That is, two sets of telescopic links are arranged on two sides of the hinge mechanism 26, preferably on two symmetrical sides, the connection points of the telescopic links and the hinge mechanism 26 can be both top ends, or one of the telescopic links can be connected with a central rotating shaft in a fork-shaped structure on the top end of the hinge mechanism 26, and the other telescopic link is connected with the central rotating shaft in the fork-shaped structure in the middle of the hinge mechanism 26 according to the situation, so that the overall rigidity and stability of the hinge mechanism 26 during extension can be further improved in any mode.

Furthermore, the telescopic rod is a multi-stage telescopic rod. The number of telescoping rods in the telescoping rod mechanism is selected based on the length of the fully retracted hinge mechanism 26, the fully extended length, and the length of the telescoping rod that remains in the previous rod when the rods are fully extended, depending on the application. As shown in fig. 1, the telescopic rod mechanism is composed of four coaxially overlapped long cylinders, including four cylinders 22, three cylinders 23, two cylinders 24 and one cylinder 25, and the four long cylinders are synchronously stretched when the hinge mechanism 26 is stretched.

As can be seen from the above, the automatic detection device for imaging in an oil cylinder provided in this embodiment, as shown in fig. 1 to 4, specifically includes a telescopic motor 1, a left shift fork 2, a forward-rotation nut 3, a first slide bar 4, a motor gear 5, a first support plate 6, a first push rod 7, a press plate 8, a support motor 9, a motor connecting shaft 10, a right baffle 11, a frame 12, a second slide bar 13, a second push rod 14, a second support plate 15, a reverse-rotation nut 16, a right shift fork 17, a screw bar 18, a gear 19, a connecting shaft 20, a detector 21, a fourth cylinder 22, a third cylinder 23, a second cylinder 24, a first cylinder 25, a hinge mechanism 26, and a left baffle 27. The detector 21 is fixed on a connecting shaft 20 of a hinge mechanism 26, the hinge mechanism 26 is integrally fixed on the frame 12, the hinge mechanism 26 drives the hinge mechanism 26 to extend and retract through a relative translation mechanism consisting of a telescopic motor 1, a screw rod 18, a forward rotation nut 3, a reverse rotation nut 16, a first slide bar 4 and a second slide bar 13 to drive the camera 21 to move forward, four sections of continuous telescopic rods, namely a four cylinder 22, a three cylinder 23, a two cylinder 24 and a one cylinder 25 are used for supporting the hinge mechanism 26 to improve the rigidity of the hinge mechanism 26, the frame 12 is supported on the inner wall of an oil cylinder through the extension of a first supporting plate 6 and a second supporting plate 15, and the first supporting plate 6 and the second supporting plate 15 are driven through a. The detector 21 may be a camera with a camera function, or other detection imaging instruments, or a simple detector, such as an inner diameter measuring instrument.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of claim 1 without departing from the spirit of the present invention.