阅读说明：本技术 一种自适应电磁吸附装置 (Self-adaptive electromagnetic adsorption device ) 是由 李豪生 乔健 杨景卫 蓝楚填 梁颖琪 卢伟洪 于 2019-11-27 设计创作，主要内容包括：本发明创造公开了一种自适应电磁吸附装置,包括：壳体,其前后两个侧面上分别设有至少两个左右间隔分布的限位滑槽,每个所述限位滑槽内均设有套设有弹簧的导向销；至少两个电磁支撑脚,每个所述电磁支撑脚均止转连接有转轴,每个所述电磁支撑脚均通过对应的转轴转动连接在前后两个所述限位滑槽之间,每个所述转轴的两个端部均与对应的弹簧进行接触。由于所有的电磁支撑脚均为活动设置,因此将本发明创造靠近导磁性圆形管道时,每个所述电磁支撑脚均在磁力的驱动下对自身的位置进行适应性调整,使得每个所述电磁支撑脚均能与不同尺寸规格的导磁性圆形管道进行最大化的接触,从而提高本发明创造与导磁性圆形管道之间的磁力。(The invention creatively discloses a self-adaptive electromagnetic adsorption device, which comprises: the front side surface and the rear side surface of the shell are respectively provided with at least two limiting sliding grooves which are distributed at intervals left and right, and a guide pin sleeved with a spring is arranged in each limiting sliding groove; the electromagnetic supporting legs are connected with a rotating shaft in a rotation stopping mode, each electromagnetic supporting leg is connected between the front limiting sliding groove and the rear limiting sliding groove in a rotating mode through the corresponding rotating shaft, and two end portions of each rotating shaft are in contact with the corresponding spring. Because all the electromagnetic supporting legs are movably arranged, when the electromagnetic supporting legs are close to the magnetic conductive circular pipeline, the positions of the electromagnetic supporting legs are adaptively adjusted under the driving of magnetic force, so that each electromagnetic supporting leg can be in maximum contact with the magnetic conductive circular pipelines with different sizes and specifications, and the magnetic force between the electromagnetic supporting legs and the magnetic conductive circular pipelines is improved.)

1. An adaptive electromagnetic attraction apparatus, comprising:

the shell (100) is provided with at least two limiting sliding grooves (300) which are distributed at intervals left and right on the front side surface and the rear side surface, each limiting sliding groove (300) is arranged up and down, a guide pin (310) which is arranged up and down is arranged in each limiting sliding groove (300), and a spring (311) is sleeved on each guide pin (310);

at least two electromagnetism supporting legs (200), it is located in casing (100), every the lower bottom surface of electromagnetism supporting legs (200) is the magnetic force adsorption face, every electromagnetism supporting legs (200) are all just changeed and are connected with pivot (400), every electromagnetism supporting legs (200) are all rotated through pivot (400) that correspond and are connected two around between spacing spout (300), every two tip of pivot (400) all contact with spring (311) that correspond, every pivot (400) all can be followed two around spacing spout (300) reciprocate.

2. The adaptive electromagnetic attraction apparatus according to claim 1, wherein: all the limiting sliding grooves (300) positioned on the front side surface of the shell (100) are respectively arranged in front-back opposite direction with all the limiting sliding grooves (300) positioned on the back side surface of the shell (100).

3. The adaptive electromagnetic attraction apparatus according to claim 1, wherein: both end portions of each of the rotating shafts (400) are provided with contact planes (410).

4. An adaptive electromagnetic attraction apparatus according to claim 3, characterized in that: each guide pin (310) extends downwards from the inner top surface of the limiting sliding groove (300), and each contact plane (410) is located below the corresponding guide pin (310).

5. The adaptive electromagnetic attraction apparatus according to claim 4, wherein: each spring (311) is a compression spring, one end of each compression spring is abutted to the inner top surface of the limiting sliding groove (300), and the other end of each compression spring is abutted to the contact plane (410).

6. An adaptive electromagnetic attraction apparatus according to claim 3, characterized in that: each guide pin (310) extends upwards from the inner bottom surface of the limiting sliding groove (300), and each contact plane (410) is located above the corresponding guide pin (310).

7. The adaptive electromagnetic attraction apparatus according to claim 6, wherein: each spring (311) is an extension spring, one end of each extension spring is fixedly connected with the inner bottom surface of the limiting sliding groove (300), and the other end of each extension spring is fixedly connected with the contact plane (410).

8. The adaptive electromagnetic attraction apparatus according to claim 1, wherein: each electromagnetic supporting leg (200) is a horseshoe-shaped electromagnet or a strip-shaped electromagnet.

9. The adaptive electromagnetic attraction apparatus according to claim 1, wherein: every all be equipped with shaft hole (230) on the electromagnetism supporting legs (200), every pivot (400) all carries out interference fit or welding with shaft hole (230) that correspond.

10. The adaptive electromagnetic attraction apparatus according to claim 1, wherein: the outer side of each limiting sliding groove (300) is detachably connected with a sealing cover.

Technical Field

The invention relates to the field of electromagnetic devices, in particular to a self-adaptive electromagnetic adsorption device.

Background

The contact area of electromagnetic adsorption device and magnetic object is the important factor that influences electromagnetic adsorption device magnetic force, if the contact area between electromagnetic adsorption device and the magnetic object is too little, then can greatly reduced electromagnetic adsorption device's adsorption performance, seriously influences the use of the equipment of being connected with electromagnetic adsorption device, then need increase electromagnetic adsorption device's electric current in order to promote electromagnetic adsorption device's magnetic force when necessary.

Especially for the check out test set or the robot of crawling that adsorbs on the wall of magnetic conductivity circular pipeline, refer to fig. 1, because the cross-section of magnetic conductivity circular pipeline 1 is circular, and current electromagnetic adsorption device mainly is electromagnet 2, and the magnetic force adsorption plane of electromagnet is the plane, therefore electromagnet can not increase the area of contact with the wall of magnetic conductivity circular pipeline adaptively for only be line contact between electromagnet and the wall of magnetic conductivity circular pipeline, lead to dropping of check out test set or the robot of crawling easily, if increase electromagnet's electric current, can improve the risk that electromagnet is burnt out by the overload.

Disclosure of Invention

The present invention has been made to solve at least one of the problems occurring in the prior art. Therefore, the invention provides a self-adaptive electromagnetic adsorption device which can automatically adjust the position of each electromagnetic supporting leg to adapt to magnetic conductivity circular pipelines with different sizes and specifications and increase the contact area with the magnetic conductivity circular pipelines.

According to an embodiment of a first aspect of the invention, an adaptive electromagnetic adsorption device includes:

the shell is provided with at least two limiting chutes which are distributed at intervals left and right on the front side and the rear side respectively, each limiting chute is arranged up and down, a guide pin which is arranged up and down is arranged in each limiting chute, and each guide pin is sleeved with a spring;

at least two electromagnetism supporting legs, it is located in the casing, every the lower bottom surface of electromagnetism supporting leg is the magnetic force adsorption face, every the electromagnetism supporting leg is all splines and is connected with the pivot, every the electromagnetism supporting leg is all rotated through the pivot that corresponds and is connected two in the front and back between the spacing spout, every two tip of pivot all contact with the spring that corresponds, every the pivot all can be followed two in the front and back spacing spout reciprocates.

The self-adaptive electromagnetic adsorption device according to the embodiment of the invention has at least the following beneficial effects: because all the electromagnetic supporting legs are movably arranged, when the electromagnetic supporting leg is close to the magnetic conductive circular pipeline, the position of each electromagnetic supporting leg is adaptively adjusted under the driving of magnetic force, and the spring is used for limiting the rotation of the electromagnetic supporting legs and providing a supporting effect for the electromagnetic supporting legs, so that each electromagnetic supporting leg can be in maximum contact with the magnetic conductive circular pipelines with different sizes and specifications, the contact area between the electromagnetic supporting leg and the magnetic conductive circular pipeline is increased, and the magnetic force between the electromagnetic supporting leg and the magnetic conductive circular pipeline is improved.

According to some embodiments of the invention, all the limiting chutes on the front side surface of the shell are respectively arranged opposite to all the limiting chutes on the rear side surface of the shell.

According to some embodiments of the invention, both ends of each of the shafts are provided with contact planes.

According to some embodiments of the invention, each guide pin extends downwards from the inner top surface of the limiting chute, and each contact plane is located below the corresponding guide pin.

According to some embodiments of the invention, each spring is a compression spring, one end of each compression spring is abutted against the inner top surface of the limiting sliding chute, and the other end of each compression spring is abutted against the contact plane.

According to some embodiments of the invention, each guide pin extends upwards from the inner bottom surface of the limiting chute, and each contact plane is located above the corresponding guide pin.

According to some embodiments of the invention, each spring is an extension spring, one end of each extension spring is fixedly connected with the inner bottom surface of the limiting sliding chute, and the other end of each extension spring is fixedly connected with the contact plane.

According to some embodiments of the invention, each of the electromagnetic supporting legs is a horseshoe-shaped electromagnet or a bar-shaped electromagnet.

According to some embodiments of the invention, each electromagnetic supporting leg is provided with a shaft hole, and each rotating shaft is in interference fit with or welded to the corresponding shaft hole.

According to some embodiments of the invention, a cover is detachably connected to the outer side of each limiting sliding groove.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of an electromagnetic chuck in contact with a wall of a magnetically permeable circular pipe according to the prior art;

FIG. 2 is a schematic perspective view of an adaptive electromagnetic adsorption apparatus according to an embodiment of the present invention;

FIG. 3 is a front view of the adaptive electromagnetic attraction device shown in FIG. 1;

FIG. 4 is an exploded view of the adaptive electromagnetic attraction device shown in FIG. 1;

fig. 5 is a schematic view of the adaptive electromagnetic adsorption device according to the embodiment of the invention when contacting with the wall surface of the magnetic conductive circular pipeline.

In the drawings: 100-shell, 200-electromagnetic supporting legs, 300-limiting sliding grooves, 310-guide pins, 311-springs, 210-horseshoe-shaped iron cores, 211-iron core end parts, 220-coils, 1-magnetic-conductivity circular pipelines, 230-shaft holes, 400-rotating shafts, 410-contact planes and 10-self-adaptive electromagnetic adsorption devices.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of illustrating the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as up, down, front, rear, left, right, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the invention, the meaning of a plurality of the terms is one or more, the meaning of a plurality of the terms is two or more, and the terms larger, smaller, larger, etc. are understood to include no essential numbers, and the terms larger, smaller, etc. are understood to include essential numbers.

In the description of the present invention, unless otherwise explicitly defined, terms such as setup, installation, connection, and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention in combination with the detailed contents of the technical solutions.

As shown in fig. 2 and fig. 3, the adaptive electromagnetic adsorption device according to the embodiment of the first aspect of the present invention includes a housing 100 and two electromagnetic support legs 200, wherein the vertical cross-sectional shape of the housing 100 is "Jiong", the lower bottom surface of the housing 100 is open, the left and right side surfaces of the housing 100 may be open or semi-closed, two limit sliding slots 300 are respectively disposed on the front and back side surfaces of the housing 100, and all the limit sliding slots 300 located on the front side surface of the housing 100 are respectively disposed opposite to all the limit sliding slots 300 located on the back side surface of the housing 100. Each limiting sliding groove 300 is vertically arranged, a guide pin 310 vertically arranged is arranged in each limiting sliding groove 300, and each guide pin 310 is sleeved with a spring 311; the guide pins 310 are disposed in two ways, one is extending downward from the inner top surface of the position-limiting sliding groove 300, and the other is extending upward from the inner bottom surface of the position-limiting sliding groove 300.

All the electromagnetic supporting legs 200 are positioned in the shell 100, and the lower bottom surface of each electromagnetic supporting leg 200 is a magnetic force adsorption surface; specifically, each of the electromagnetic supporting legs 200 is a horseshoe-shaped electromagnet, that is, each of the electromagnetic supporting legs 200 includes a horseshoe-shaped iron core 210, and two iron core end portions 211 of each of the horseshoe-shaped iron cores 210 are respectively wound with coils 220 having different winding directions, so that one iron core end portion 211 is an N pole, and the other iron core end portion 211 is an S pole. In order to enable each electromagnetic supporting leg 200 to be better contacted with the magnetic conductive circular pipeline 1, the magnetic force adsorption surface of each iron core end 211 is of an arc structure. It can be understood that the electromagnetic supporting legs 200 may also be bar-shaped electromagnets, but since the number of the magnetic force absorbing surfaces of the shoe-shaped electromagnets is greater than the number of the magnetic force absorbing surfaces of the bar-shaped electromagnets, all the electromagnetic supporting legs 200 in this embodiment are preferably shoe-shaped electromagnets, as long as the coil 220 is energized, both core ends 211 of the shoe-shaped electromagnets are magnetic, so that the electromagnetic supporting legs 200 can be absorbed on the wall surface of the magnetically conductive circular pipe 1.

As shown in fig. 2 and 4, a shaft hole 230 is formed in the middle upper portion of each horseshoe-shaped iron core 210, a rotating shaft 400 is rotatably connected in each shaft hole 230, two ends of each rotating shaft 400 are movably arranged in the front and rear limiting sliding grooves 300, because the shaft holes 230 are rotatably connected with the rotating shaft 400, each electromagnetic supporting leg 200 can be rotatably connected between the front and rear limiting sliding grooves 300, and each rotating shaft 400 can rotate or move along with the corresponding electromagnetic supporting leg 200. Two ends of each rotating shaft 400 are in contact with the corresponding springs 311, the springs 311 provide a pre-tightening force for the rotating shaft 400 to push downwards, the rotating shaft 400 can move up and down along the front limiting sliding groove 300 and the rear limiting sliding groove 300, and therefore each electromagnetic supporting leg 200 can move up and down along the front limiting sliding groove 300 and the rear limiting sliding groove 300. Specifically, in order to facilitate the rotation of the rotating shaft 400, each of the limiting sliding grooves 300 is oblong; each of the rotating shafts 400 is in interference fit or welded with the corresponding shaft hole 230, and the electromagnetic support legs 200 and the rotating shaft 400 which are welded together are inconvenient for subsequent installation, so that the present embodiment preferentially adopts interference fit to enable the shaft hole 230 and the rotating shaft 400 to achieve the rotation stopping effect. It can be understood that, one electromagnetic supporting foot 200 is correspondingly installed on each pair of limiting sliding grooves 300 arranged in front and back, and the number of the electromagnetic supporting feet 200 may also be three, four, etc., without being limited thereto.

In some embodiments of the present invention, in order to enable the spring 311 to additionally limit the rotation of the electromagnetic supporting leg 200, so that the spring 311 can not only provide a supporting function for the electromagnetic supporting leg 200, but also limit the rotation of the electromagnetic supporting leg 200, thereby enabling the electromagnetic supporting leg 200 to have the functions of downward movement return and rotation return, a contact plane 410 is provided at each of two end portions of each rotating shaft 400. When each guide pin 310 extends downwards from the inner top surface of the limiting chute 300, each contact plane 410 is located below the corresponding guide pin 310, and meanwhile, each spring 311 is a compression spring, one end of the compression spring abuts against the inner top surface of the limiting chute 300, and the other end of the compression spring abuts against the contact plane 410; when each guide pin 310 extends upwards from the inner bottom surface of the limiting chute 300, each contact plane 410 is located above the corresponding guide pin 310, and meanwhile, each spring 311 is an extension spring, one end of the extension spring is fixedly connected with the inner bottom surface of the limiting chute 300, and the other end of the extension spring is fixedly connected with the contact plane 410. Although the two embodiments have substantially the same technical effects, the first embodiment does not require the fixed connection of the two ends of the spring 311, so that the user can replace the failed spring 311 more conveniently, and the first embodiment is preferred. It should be further noted that, when the electromagnetic supporting foot 200 drives the rotating shaft 400 to rotate, at this time, both the two contact planes 410 on the rotating shaft 400 deflect, and because one end of each of the compression springs abuts against the corresponding contact plane 410, one end of each of the compression springs also deflects along with the two contact planes 410, and although the torsion resistance of the compression springs is general, a reverse torque can still be generated on the electromagnetic supporting foot 200, which causes a certain limitation on the rotation of the electromagnetic supporting foot 200.

In some embodiments of the present invention, in order to improve the safety of the adaptive electromagnetic adsorption device 10, a sealing cover (not shown) may be detachably connected to an outer side of each of the limiting chutes 300, so as to prevent the rotating shaft 400 or the spring 311 from being separated from the limiting chute 300.

As shown in fig. 5, when the user brings the adaptive electromagnetic adsorption device 10 that has been powered on close to the magnetically permeable circular pipe 1, because the two electromagnetic supporting legs 200 are movably arranged, the four magnetic iron core end parts 211 can generate magnetic forces in different directions according to the diameter of the magnetic conductive circular pipeline 1, thereby automatically adjusting the rotation angle and the extension distance of the electromagnetic supporting leg 200 to achieve the technical effect that the four iron core end parts 211 are always contacted with the wall surface of the magnetic conductive circular pipeline 1, the magnetic adsorption surfaces of the four iron core end parts 211 are in maximum contact with the wall surface of the magnetic conductive circular pipeline 1, thereby improve the magnetic force between the circular pipeline 1 of self-adaptation electromagnetic adsorption device 10 and magnetic conductivity, reduce the risk that the circular pipeline 1 of self-adaptation electromagnetic adsorption device 10 from taking place to drop.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.