Magnetic braking cardan shaft device for hinged position and wall-mounted X-ray machine thereof

Abstract

The utility model discloses a magnetic braking cardan shaft device for a hinged position and a wall-mounted X-ray machine thereof, the magnetic braking cardan shaft device comprises a magnetic control seat, a universal base and a universal ball, and a connecting part to be installed is fixedly installed at the center axis of the ball center of the universal ball; the universal base is composed of a pair of symmetrically-arranged hemisphere base bodies, and the universal ball is rotationally arranged in a ball cavity formed by the two hemisphere base bodies in an attached and opposite mode in a sleeved mode. The universal base is fixedly mounted on the magnetic control seat, and a magnetic core rod which rotates circumferentially under the driving of external force and is used for changing the direction of a magnetic field to control the universal ball and a connecting part of the universal ball to rotate and brake at different angles and positions is mounted on the universal base corresponding to the center of the universal ball in the longitudinal direction; the machine head corresponding to the connecting component is controlled to brake and shoot at different angles and positions.

Description

[Technical field]

[0001] The utility model relates to an articulated braking technology, in particular to a magnetic braking universal shaft device used for an articulated joint and a wall-mounted X-ray machine thereof. [Background technology]

[0002] The pitch mechanism is the main component that completes the pitch rotation movement required by the electromechanical product. In the prior art, an electric cylinder is generally used to convert the rotational movement of the pitch motor into the reciprocating linear telescopic movement of the electric cylinder push rod inside the cylinder barrel of the electric cylinder, thereby driving the landing gear or support arm and the effective load it carries to perform pitch rotation movement around the hinge fulcrum, and adjusting the landing gear or support arm and the limited load it carries to the elevation angle given by the control system command. The traditional pitch mechanism hinge fulcrum layout design is mainly based on the trial and error method based on engineering experience. Through direct comparison of several design schemes, a relatively good feasible scheme is selected after drawing or manual calculation. This method is cumbersome, inefficient and error-prone. In addition, the performance of the pitch mechanism's electric cylinder elongation proportional coefficient, pitch load torque, pitch transmission ratio, electric cylinder axial thrust, pitch motor output torque requirement and output speed requirement are nonlinear functions of the elevation angle and the position of the hinge fulcrum, and there is a relatively complex coupling relationship. Therefore, the experience-based design method has great limitations, and it is difficult to achieve the optimal design effect, which cannot meet the development needs of compactness and integration of machinery and high-end equipment.

[0003] For example, in the field of medical instruments and equipment, especially the braking of the head of a medical wall-mounted X-ray machine, the existing arm connection method has only a single active angle, and requires the coordination of multiple active joints of the entire connecting arm to complete rotational movement at different angles and positions. The operation is relatively complex and cumbersome. There is an urgent need for a rotation control only for the head part to meet the shooting requirements of different angles and positions, and a hinge connection device with relatively simple manufacturing process and operation. [Contents of the utility model]

[0004] The utility model provides a magnetic braking universal shaft device for hinged joints and a wall-mounted X-ray machine thereof, which controls the rotation and braking of a universal ball by controlling the forward and reverse rotation of a magnetic core rod to change the direction of a magnetic field, thereby meeting different angle requirements of corresponding connection parts of the universal ball and realizing universal rotation.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A magnetic brake universal shaft device for hinged joints, used to rotate connecting components to different angles and positions, comprising a magnetic control seat, a universal base and a universal ball, wherein the connecting component to be installed is fixedly installed at the center axis of the universal ball;

[0007] The universal base is composed of a pair of symmetrically arranged hemispherical seats, and the universal ball is rotatably sleeved in a ball cavity formed by the two hemispherical seats that are fitted and opposed to each other;

[0008] The universal base is fixedly mounted on the magnetic control seat, and a magnetic core rod is longitudinally mounted on the universal base corresponding to the center of the universal ball, which rotates circumferentially under the drive of an external force and is used to change the direction of the magnetic field to control the universal ball and its connecting parts to achieve rotation and braking at different angles and positions.

[0009] Preferably, the magnetic control seats on the upper and lower sides of the magnetic core rod are respectively provided with copper anti-magnetic blocks coaxial with the magnetic core rod.

[0010] Preferably, the magnetic control seat is provided with a shaft hole for fitting the magnetic core rod for circumferential rotation, and the upper and lower sides of the shaft hole are respectively provided with mounting grooves for engaging and fixing the copper anti-magnetic block.

[0011] Preferably, all the copper antimagnetic blocks are provided with arc-shaped contact surfaces at the inner ends adjacent to the magnetic core rods for easy mutual fitting.

[0012] Preferably, the magnetic control seat is an iron base.

[0013] Preferably, the magnetic core rod is composed of a permanent magnet and electrical soft iron wrapped around the periphery of the permanent magnet.

[0014] Preferably, the four corners of the universal base after the two symmetrically arranged hemispherical base bodies are connected are fixed to the magnetic control base by screws.

[0015] A wall-mounted X-ray machine, used for medical X-ray diagnosis, comprises a machine head, which is mounted on a magnetic braking universal shaft device for a hinge according to the above-mentioned method, and the machine head is mounted on a universal ball. A magnetic core rod is manually or electrically driven to control the braking and shooting of the machine head at different angles and positions.

[0016] The beneficial effects of the utility model are:

[0017] The motor / handle drives the magnetic core rod to rotate forward and reverse, and the magnetization controls the tightening and loosening of the universal ball. The direction of the magnetic field is changed to control the rotation and braking of the universal ball, so as to control the universal rotation of the universal ball, so as to meet the different angle requirements of the universal ball connection part and realize universal rotation; when applied to a wall-mounted X-ray machine, the universal ball controls the head to brake and shoot at different angles and positions, and the overall manufacturing is simple and the structure is simple. And by changing the magnetic force of the magnetic core rod as a permanent magnet, it can cope with universal connections with different loads.

Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall explosion structure of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0021] Figure 4 This is a working principle diagram of the magnetic brake in the utility model when the magnetic field is vertical;

[0022] Figure 5 This is a working principle diagram of the magnetic braking magnetic field synchronization in the utility model. [Specific implementation method]

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative changes are within the scope of protection of the utility model.

[0024] A magnetic brake universal shaft device for a hinge, such as Figures 1 to 5 As shown, the head (not shown) of a medical wall-mounted X-ray machine is rotated to different angles and positions, including a magnetic control seat 1, a universal base 2 and a universal ball 3. The magnetic control seat 1 is an iron base, and the head is fixedly mounted on the central axis of the ball center of the universal ball 3 through a cantilever; the universal base 2 is composed of a pair of symmetrically arranged hemispherical seat bodies 20, and the four corners of the universal base 2 after the two symmetrically arranged hemispherical seat bodies 20 are fixed to the magnetic control seat 1 by screws, and the universal ball 3 is rotatably sleeved in the ball cavity formed by the two hemispherical seat bodies 20 that are fitted and opposed; the universal base 2 is fixedly mounted on the magnetic control seat 1, and a magnetic core rod 4 is longitudinally installed on the universal base 2 corresponding to the ball center of the universal ball 3, which rotates circumferentially under the drive of an external force and is used to change the direction of the magnetic field to control the universal ball 3 and the head connected thereto to achieve rotation and braking at different angles and positions; wherein the magnetic core rod 4 is composed of a permanent magnet 40 and an electrical soft iron 41 wrapped around the periphery of the permanent magnet. When in use, the magnetic core rod 4 is driven manually or electrically to control the head to brake and shoot at different angles and positions.

[0025] like Figures 1 to 3 As shown, the magnetic control seat 1 on the upper and lower sides of the magnetic core rod 4 is also provided with copper anti-magnetic blocks 5 coaxial with the magnetic core rod 4, and the magnetic control seat 1 is provided with a shaft hole 6 for circumferential rotation of the magnetic core rod 4, and the upper and lower sides of the shaft hole are respectively penetrated with mounting grooves 7 for fitting and fixing the copper anti-magnetic blocks 5. The inner ends of all the copper anti-magnetic blocks 5 near the magnetic core rod 4 are provided with arc-shaped contact surfaces 50 for easy mutual fitting.

[0026] When assembling, Figure 3 and Figure 4 As shown, the N pole and S pole of the permanent magnet are horizontally installed in the electrical soft iron, and then are mounted in the shaft hole of the magnetic control seat 1 made of cast iron, and the copper anti-magnetic block 5 is installed from the upper and lower sides of the magnetic control seat 1; then, the universal ball 3 is combined with the two hemispherical seat bodies and connected to the magnetic control seat 1 by bolts; finally, an external handle or motor is connected at the notch at the outer end of the magnetic core rod 4 to control the tightening and loosening of the universal ball 3 by changing the horizontal or vertical position of the N pole and S pole of the permanent magnet in the magnetic core rod 4 relative to the magnetic control seat 1, and the machine head is fixedly installed at the center axis of the ball center of the universal ball 3 through a cantilever.

[0027] When in use, the permanent magnet in the magnetic core rod is rotated by turning the handle electrically or manually. When the two poles (N or S) of the permanent magnet are in the up-down direction, that is, when the N pole or S pole of the permanent magnet is facing the magnetic control seat of the soft magnetic material, it is magnetized. There is a strong magnetism in this direction, and the universal ball is attracted by the magnetic force. When the two poles of the permanent magnet are in the horizontal direction, when the middle of the N pole and the S pole is facing the magnetic control seat of the soft magnetic material, the magnetic field line is cut by the middle copper antimagnetic block, and the magnetic control seat will not be magnetized. Therefore, there is almost no magnetic force on the magnetic control seat at this time, and the universal ball can be easily rotated.

[0028] When working, the relative position of the permanent magnet NS pole in the magnetic control seat is controlled to achieve the cutting and conduction of the magnetic induction line, thereby controlling the magnetization of the external conductor, and controlling the tightening and loosening of the universal ball through magnetization, thereby achieving the control of the universal rotation of the universal ball. The overall structure is simple to install, and can cope with universal connections with different loads by changing the magnetic force of the permanent magnet.

[0029] The above-described embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. All equivalent changes made based on the shape, structure and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic brake universal shaft device for a hinge, used to connect components to rotate to different angles and positions, characterized in that: It includes a magnetic control seat, a universal base and a universal ball, and the connecting component to be installed is fixedly installed at the center axis of the universal ball; The universal base is composed of a pair of symmetrically arranged hemispherical seats, and the universal ball is rotatably sleeved in a ball cavity formed by the two hemispherical seats that are fitted and opposed to each other; The universal base is fixedly mounted on the magnetic control seat, and a magnetic core rod is longitudinally mounted on the universal base corresponding to the center of the universal ball, which rotates circumferentially under the drive of an external force and is used to change the direction of the magnetic field to control the universal ball and its connecting parts to achieve rotation and braking at different angles and positions.

2. A magnetic braking universal shaft device for a hinge according to claim 1, characterized in that: Copper anti-magnetic blocks coaxial with the magnetic core rod are also respectively arranged on the magnetic force control seats on the upper and lower sides of the magnetic core rod.

3. A magnetic braking universal shaft device for a hinge according to claim 2, characterized in that: The magnetic force control seat is provided with a shaft hole for fitting the magnetic core rod for circumferential rotation, and the upper and lower sides of the shaft hole are respectively provided with mounting grooves for engaging and fixing the copper anti-magnetic block.

4. A magnetic braking universal shaft device for a hinge according to claim 2, characterized in that: All the copper antimagnetic blocks are provided with arc-shaped contact surfaces at the inner ends adjacent to the magnetic core rods for easy mutual fitting.

5. A magnetic braking universal shaft device for a hinge according to claim 1, characterized in that: The magnetic control seat is an iron base.

6. A magnetic braking universal shaft device for a hinge according to claim 1, characterized in that: The four corners of the universal base after the two symmetrically arranged hemispherical base bodies are connected are fixed on the magnetic control base through screws.

7. A magnetic braking universal shaft device for a hinge according to claim 1, characterized in that: The magnetic core rod is composed of a permanent magnet and electrical soft iron wrapped around the periphery of the permanent magnet.

8. A wall-mounted X-ray machine for medical X-ray diagnosis, characterized in that: It includes a machine head, which is installed on a magnetic braking universal shaft device for a hinge according to any one of claims 1 to 7. The machine head is installed on a universal ball, and a magnetic core rod is manually or electrically driven to control the braking shooting of the machine head at different angles and positions.

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