WO2022007258A1 - 一种防爆电磁铁装置及制动器 - Google Patents
一种防爆电磁铁装置及制动器 Download PDFInfo
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- WO2022007258A1 WO2022007258A1 PCT/CN2020/125197 CN2020125197W WO2022007258A1 WO 2022007258 A1 WO2022007258 A1 WO 2022007258A1 CN 2020125197 W CN2020125197 W CN 2020125197W WO 2022007258 A1 WO2022007258 A1 WO 2022007258A1
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- explosion
- proof
- electromagnet
- housing
- brake
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/128—Encapsulating, encasing or sealing
Definitions
- the invention relates to the technical field of electric motor braking equipment, in particular to an explosion-proof electromagnet device and a brake.
- Electromagnets are widely used in motor brakes. Common motor brake electromagnet devices cannot meet the explosion-proof requirements, because explosion-proof treatment is mainly used for explosion-proof treatment of sparks generated when the electromagnetic coil is installed in the electromagnet shell and then energized.
- the electromagnetic brake is generally placed in an explosion-proof box, and the electric spark generated by the electromagnetic coil is isolated in the explosion-proof box. If the electromagnetic coil is encapsulated with glue for explosion-proof, the glue will age and cannot be permanently explosion-proof. If the explosion-proof cover of other metals such as copper or iron is used as the explosion-proof cover of the electromagnetic coil, the magnetic line of force of the coil cannot pass through or cannot pass through the explosion-proof cover completely, and the magnetic force is therefore invalid, and the braking function of the electromagnet device cannot be completed.
- the purpose of the present invention is to provide an explosion-proof electromagnet device and a brake to solve the above-mentioned problems in the background art.
- the present invention provides the following technical solutions:
- An explosion-proof electromagnet device includes an electromagnet casing, an electromagnetic coil and an explosion-proof cover, the explosion-proof cover is installed on a side of the electromagnet casing that accommodates the electromagnetic coil, and the explosion-proof cover is connected to the electromagnet casing.
- Body interference fit; the explosion-proof cover is made of aluminum or aluminum alloy material.
- the side or bottom of the electromagnet housing is provided with an outlet hole for the outlet of the electromagnetic coil.
- the outlet hole of the electromagnet housing is a threaded hole, and the number of screw threads of the threaded hole is greater than 3.
- a pipe joint is also included, and the pipe joint is threadedly matched with the electromagnet housing.
- a sealing member is provided on the contact surface of the explosion-proof cover and the electromagnet housing.
- the present invention further includes a pull rod and a brake sprocket, and the brake sprocket is movably installed on the side of the explosion-proof cover away from the electromagnetic coil through the pull rod.
- a spring is sleeved on the tie rod, and the spring supports the brake sprocket in a limited position.
- a copper tube or a copper cap for supporting the spring is set between the spring and the brake sprocket.
- the explosion-proof cover is threadedly matched with the electromagnet housing.
- a brake comprising a brake member, a casing and any one of the explosion-proof electromagnet devices described above, wherein the brake member and the explosion-proof electromagnet device are mounted on the casing , the explosion-proof electromagnet device drives the brake to move.
- a controller is also included, and the controller is connected with the explosion-proof electromagnet device.
- the beneficial effect of the present invention is that an integral explosion-proof electromagnet device is formed by an electromagnet shell, an electromagnetic coil and an explosion-proof cover, and a permanent explosion-proof electromagnet device is constituted. Add an explosion-proof box to save cost and reduce weight.
- FIG. 1 is a schematic structural diagram of an explosion-proof electromagnet device.
- FIG. 2 is a schematic diagram of a partial structure of an explosion-proof electromagnet device.
- an explosion-proof electromagnet device in an embodiment of the present invention, includes an electromagnet housing 1 , an electromagnetic coil 2 and an explosion-proof cover 3 .
- the explosion-proof cover 3 is installed in the electromagnet housing 1 to accommodate On one side of the electromagnetic coil 2, the explosion-proof cover 3 is in an interference fit with the electromagnet housing 1; the explosion-proof cover 3 is made of aluminum or aluminum alloy material.
- the explosion-proof cover 3 is made of an aluminum alloy material, and the explosion-proof cover 3 made of the aluminum alloy material can pass through the magnetic field lines.
- the depth of the explosion-proof cover 3 is determined according to the set explosion-proof requirements.
- the contact surface of the explosion-proof cover 3 and the electromagnet shell 1 is made into a contact surface with a higher smoothness by machining, so that the explosion-proof cover 3 is pressed or driven into the electromagnet shell 1, and the electromagnet shell is
- the body 1 forms a whole, and the exposed surface of the flameproof cover 3 coincides with the end face of the electromagnet casing or is slightly lower than the end face of the electromagnet casing 1 .
- the more compact and simple structure ensures that the explosion-proof electromagnet device has sufficient explosion-proof strength.
- the integrated explosion-proof electromagnet device meets the explosion-proof requirements, and at the same time, its structure is compact, the weight is lighter, and the application scope and scene are wider.
- a part or all of the explosion-proof cover 3 is made of aluminum, and the explosion-proof cover 3 made of aluminum can allow magnetic lines of force to pass through, on the contact surface of the explosion-proof cover 3 and the electromagnet housing 1 . , make a contact surface with a higher finish by machining, so that the explosion-proof cover 3 is pressed or driven into the electromagnet housing 1 to form a whole with the electromagnet housing 1, and the exposed surface of the explosion-proof cover 3 is
- the end face of the electromagnet casing is coincident with or slightly lower than the end face of the electromagnet casing 1 . The more compact and simple structure ensures that the explosion-proof electromagnet device has sufficient explosion-proof strength.
- the explosion-proof cover is made of non-metallic materials, compared with the explosion-proof cover made of aluminum or aluminum alloy material, its impact strength is not enough and the explosion-proof contact surface cannot be made, so it is difficult to meet the explosion-proof requirements, that is, the metal surface In contact with the metal surface, the contact is tighter and the contact gap is smaller, and it is easy to meet the explosion-proof requirements.
- the side or bottom of the electromagnet housing 1 is provided with an outlet hole 101 for the outlet of the electromagnetic coil 2 .
- the wire outlet hole 101 is provided at the bottom of the electromagnet housing 1 , and the wire outlet hole 101 is opposite to the wire end of the electromagnetic coil, so that the side of the wire end of the electromagnetic coil 2 is close to the electromagnet casing.
- the inner bottom surface of the body 1 is fully contacted and fitted.
- the wire outlet hole 101 is provided for the electromagnetic coil 2 to be connected to an external power source, and also protects the wire end from being damaged by abrasion.
- the outlet hole of the electromagnet housing 1 is a threaded hole, and the number of screw threads of the threaded hole is greater than three.
- the number of screw threads of the threaded hole is 5, and the thickness of the bottom of the electromagnet housing 1 meets the thickness required for tapping the threaded hole.
- the explosion-proof performance of the explosion-proof electromagnet device is improved. It is ensured that the explosion-proof electromagnet device can operate stably in a complex environment.
- a pipe joint 8 is further included, and the pipe joint 8 is threadedly engaged with the electromagnet housing 1 .
- the joint of the electromagnetic coil is connected to the power supply through the pipe joint 8, the pipe joint 8 is screwed into the outlet hole 101, and the electromagnet housing 1 is sealed to prevent external dust and fine particles from entering The electromagnet housing 1 destroys the electromagnet coil 2 .
- the contact surface of the explosion-proof cover 3 and the electromagnet housing 1 is provided with a sealing member.
- the sealing member may be a fluorosilicone rubber sealing ring.
- a fluorosilicone rubber sealing ring is provided at a suitable part of the contact surface between the explosion-proof cover 3 and the electromagnet housing 1 to ensure that The explosion-proof electromagnet device complies with the protection level of dust explosion-proof requirements or a higher protection level.
- the specific model of the seal is HG/T2021-91.
- the embodiment of the present invention further includes a pull rod 7 and a braking sprocket 4 .
- the braking sprocket 4 is movably installed on the side of the explosion-proof cover 3 away from the electromagnetic coil 2 through the pull rod 7 .
- the pull rod is provided with a pin hole 701 , and the brake sprocket is arranged on the side of the explosion-proof cover 3 away from the electromagnetic coil 2 through the pin and the pin hole 701 .
- the center of the explosion-proof cover 3 , the electromagnetic coil 2 and the electromagnet housing 1 is provided with a through hole
- the center of the brake sprocket 4 is provided with a counterbore
- the rod of the pull rod The cap is against the step of the counterbore, the tail of the pull rod passes through the explosion-proof cover 3, the electromagnetic coil 2 and the electromagnet housing 1, and is connected to the external mechanism through the pin hole 701; the electromagnetic coil 2 After power-on, the brake sprocket 4 is magnetically attracted to approach the electromagnetic coil 2, and the pull rod plays a role of limiting and guiding.
- a spring 5 is sleeved on the pull rod 7 , and the spring 5 supports the brake sprocket 4 in a limited position. Between the spring 5 and the brake sprocket 4 , a copper tube 6 or a copper cap that supports the spring 5 in a limited position is sleeved.
- the spring 5 stretches and spreads the braking sprocket 4 so that the braking sprocket 4 is far away from the electromagnetic coil 2 to realize the braking function.
- the explosion-proof cover 3 is threadedly engaged with the electromagnet housing 1 .
- the explosion-proof cover 3 is screwed into the electromagnet housing 1 to seal the electromagnetic coil 2 .
- the exposed side surface of the flameproof cover coincides with the end face of the electromagnet casing or is slightly lower than the end face of the electromagnet casing.
- a brake in another embodiment provided by the present invention, includes a brake member, a casing and any one of the explosion-proof electromagnet devices described above, wherein the brake member and the explosion-proof electromagnet device are mounted on the casing , the explosion-proof electromagnet device drives the brake to move.
- the housing is installed on the electric door operator of the electric door.
- the explosion-proof electromagnet device integrates the explosion-proof cover 3, the electromagnetic coil 2 and the electromagnet housing 1 into one body; the brake disc is a friction plate, and the brake disc is placed on the operating shaft of the electric door operator.
- the electromagnetic coil 2 of the explosion-proof electromagnet device is energized, and the explosion-proof electromagnet device magnetically attracts
- the brake sprocket makes the brake sprocket move away from the brake disc in the direction close to the electromagnetic coil, releases the restraint of the brake sprocket on the brake disc, and simultaneously releases the brake disc from the electric door Constrained by the machine, the operation of the electric door operator will lower and close the electric door.
- manually pull the pull rod to release the restraint of the brake sprocket on the brake disc, the brake disc releases the restraint on the electric door operator, and the electric door is lowered and closed by its own weight.
- the controller is a relay
- the relay is connected to the explosion-proof electromagnet device.
- the brake disc interferes with the electric door to realize the closing of the electric door; when the electric door needs to be closed, press the button on the relay, and the relay sends the power of the explosion-proof electromagnet device to the electric door.
- the electromagnetic coil 2 When the electromagnetic coil 2 is energized, the explosion-proof electromagnet device magnetically attracts the brake sprocket, so that the brake sprocket moves in a direction close to the electromagnetic coil, releasing the restraint of the brake disc on the electric door, and the electric door descends closure.
- the brake member is a brake sprocket
- the brake interferes with the stroke of the electric door operator through the brake sprocket, so as to restrain the electric door; when the electric door needs to be closed, press Press the button on the relay, the relay energizes the electromagnetic coil 2 of the explosion-proof electromagnet device, and the explosion-proof electromagnet device magnetically attracts the brake sprocket, so that the brake sprocket moves closer to the electromagnetic coil. Move in the direction to release the restraint of the brake sprocket on the electric door, and the electric door is lowered and closed.
- the working principle of the present invention is as follows: the explosion-proof cover 3 is partially or entirely made of aluminum, and the explosion-proof cover 3 made of aluminum can allow magnetic lines of force to pass through, between the explosion-proof cover 3 and the electromagnet housing 1
- the contact surface is made into a contact surface with a higher finish by machining, so that the explosion-proof cover 3 is pressed or driven into the electromagnet housing 1 to form a whole with the electromagnet housing 1; the electromagnet housing
- the thickness of 1 reaches the set explosion-proof specification.
- the electromagnetic coil 2 is completely protected by the explosion-proof cover 3 that is closely connected with it.
- controller used in the present invention is an application of the prior art, and those skilled in the art can realize the desired functions according to the relevant descriptions, or realize the desired technical characteristics through similar technologies. It will not be described in detail.
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Abstract
本发明涉及一种电动机制动设备技术领域，具体是一种防爆电磁铁装置及制动器，一种防爆电磁铁装置，包括电磁铁壳体、电磁线圈和防爆盖，所述防爆盖安装在所述电磁铁壳体容纳所述电磁线圈的一侧，所述防爆盖与所述电磁铁壳体过盈配合；所述防爆盖由铝或铝合金材料制成。一种制动器，包括控制器、制动件、壳体和防爆电磁铁装置，所述制动件和防爆电磁铁装置安装在所述壳体上，所述控制器用于控制所述防爆电磁铁装置带动所述制动件运动。本发明的有益效果是：通过电磁铁壳体、电磁线圈和防爆盖组成为一个整体的防爆电磁铁装置，构成永久性防爆电磁铁装置，其结构紧凑，不需另外加装一个防爆盒，节省成本，减轻重量。
Description
本发明涉及一种电动机制动设备技术领域，具体是一种防爆电磁铁装置及制动器。
电磁铁广泛应用在电动机制动器上，普通电动机制动器电磁铁装置不能达到防爆要求，因为防爆主要针对电磁线圈装进电磁铁壳体内以后通电工作时产生的火花作隔爆处理。
目前，常用的隔爆方法：把电磁制动器总体装放在防爆盒里，将电磁线圈产生的电火花隔离在防爆盒里。如果采用胶灌封电磁线圈作防爆，胶会老化，不能永久防爆。如果用其它金属比如铜材质或铁材质的防爆盖作电磁线圈隔爆，则线圈磁力线受阻不能穿过或不能完全穿过隔爆盖，磁力因此失效，电磁铁装置因此制动功能不能完成。
本发明的目的在于提供一种防爆电磁铁装置及制动器，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：
一种防爆电磁铁装置，包括电磁铁壳体、电磁线圈和防爆盖，所述防爆盖安装在所述电磁铁壳体容纳所述电磁线圈的一侧，所述防爆盖与所述电磁铁壳体过盈配合；所述防爆盖由铝或铝合金材料制成。
作为本发明进一步的方案：所述电磁铁壳体的侧面或底部设有用于所述电磁线圈出线的出线孔。
作为本发明再进一步的方案：所述电磁铁壳体的出线孔为螺纹孔，所述螺纹孔的螺纹扣数大于3。
作为本发明再进一步的方案：还包括管接头，所述管接头与所述电磁铁壳体螺纹配合。
作为本发明再进一步的方案：所述防爆盖与所述电磁铁壳体的接触面设置有密封件。
作为本发明再进一步的方案：还包括拉杆和制动链轮，所述制动链轮通过所述拉杆活动安装在所述防爆盖远离电磁线圈的一侧。
作为本发明再进一步的方案：所述拉杆上套装有弹簧，所述弹簧限位支撑所述制动链轮。
作为本发明再进一步的方案：所述弹簧与所述制动链轮之间套装有限位支撑所述弹簧的铜管或铜帽。
作为本发明再进一步的方案：所述防爆盖与所述电磁铁壳体螺纹配合。
本发明提供的另一种技术方案：一种制动器，包括制动件、壳体和如上任一所述的防爆电磁铁装置，所述制动件和防爆电磁铁装置安装在所述壳体上，所述防爆电磁铁装置带动所述制动件运动。
作为本发明进一步的方案：还包括控制器，所述控制器与所述防爆电磁铁装置连接。
与现有技术相比，本发明的有益效果是：通过电磁铁壳体、电磁线圈和防爆盖组成为一个整体的防爆电磁铁装置，构成永久性防爆电磁铁装置，其结构紧凑，不需另外加装一个防爆盒，节省成本，减轻重量。
图1为防爆电磁铁装置的结构示意图。
图2为防爆电磁铁装置的局部结构示意图。
附图中：1-电磁铁壳体、101-出线孔、2-电磁线圈、3-防爆盖、4-制动链轮、5-弹簧、6-铜管、7-拉杆、701-销孔、8-管接头。
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本实施例公开的一些方面相一致的装置和方法的例子。
请参阅图1、2，本发明实施例中，一种防爆电磁铁装置，包括电磁铁壳体1、电磁线圈2和防爆盖3，所述防爆盖3安装在所述电磁铁壳体1容纳所述电磁线圈2的一侧，所述防爆盖3与所述电磁铁壳体1过盈配合；所述防爆盖3由铝或铝合金材料制成。
具体的，所述防爆盖3由铝合金材料制成，由铝合金材料制成的所述防爆盖3能够使磁力线穿过，所述防爆盖3的深度按照设定的防爆要求制定，在所述防爆盖3与所述电磁铁壳体1的接触面，通过机械加工制作成较高光洁度的接触面，使得将所述防爆盖3压进或者打进电磁铁壳体1，与电磁铁壳体1形成一个整体，同时隔爆盖3外露的表面与电磁铁壳体端面重合或者略低于所述电磁铁壳体1端面。在结构上更加紧凑简单保证了所述的防爆电磁铁装置具有足够的防爆强度。集成的防爆电磁铁装置，达到防爆要求的同时，其结构紧凑、质量更轻，应用范围和场景更加广阔。
可选的，所述防爆盖3部分或全部由铝制成，由铝制成的所述防爆盖3能够使磁力线穿过，在所述防爆盖3与所述电磁铁壳体1的接触面，通过机械加工制作成较高光洁度的接触面，使得将所述防爆盖3压进或者打进电磁铁壳体1，与电磁铁壳体1形成一个整体，同时隔爆盖3外露的表面与电磁铁壳体端面重合或者略低于所述电磁铁壳体1端面。在结构上更加紧凑简单保证了所述的防爆电磁铁装置具有足够的防爆强度。而如果采用非金属材料制成隔爆盖，与由铝或铝合金材料制成的防爆盖相比，其抗冲击力强度不够且隔爆接触面无法作成，很难符合防爆要求，即金属面与金属面接触，其接触更加紧密接触缝隙更小，容易达到防爆要求。
请参阅图1，本发明实施例中，所述电磁铁壳体1的侧面或底部设有用于所述电磁线圈2出线的出线孔101。
具体的，所述出线孔101设置在所述电磁铁壳体1的底部，所述出线孔101与所述电磁线圈的线头相对，使得所述电磁线圈2的线头所在侧面与所述电磁铁壳体1内底面充分接触贴合。设置出线孔101供电磁线圈2与外部电源连接，还保护所述线头不被磨损破坏。
请参阅图1，本发明实施例中，所述电磁铁壳体1的出线孔为螺纹孔，所述螺纹孔的螺纹扣数大于3。
具体的，所述螺纹孔的螺纹扣数是5，所述电磁铁壳体1底部的厚度满足所述螺纹孔攻丝所需的厚度。提升所述的防爆电磁铁装置的防爆性能。保证所述防爆电磁铁装置在复杂环境下能够稳定运行。
请参阅图1，本发明实施例中，还包括管接头8，所述管接头8与所述电磁铁壳体1螺纹配合。
具体的，所述电磁线圈的接头穿过所述管接头8与电源连接，将所述管接头8拧入所述出线孔101，密封所述电磁铁壳体1，防止外部粉尘、细小颗粒进入电磁铁壳体1破坏所述电磁线圈2。
请参阅图1，本发明实施例中，所述防爆盖3与所述电磁铁壳体1的接触面设置有密封件。
具体的，所述密封件可以是氟硅橡胶密封圈，在防爆电磁铁装置被用于粉尘爆炸性环境中，在防爆盖3与电磁铁壳体1接触面合适部位设置氟硅橡胶密封圈，保证所述的防爆电磁铁装置符合粉尘防爆要求的防护等级或更高级别的防护等级。所述密封件的具体型号是HG/T2021-91。
请参阅图1，本发明实施例中，还包括拉杆7和制动链轮4，所述制动链轮4通过所述拉杆7活动安装在所述防爆盖3远离电磁线圈2的一侧。所述拉杆上设有销孔701，通过销与所述销孔701将所述制动链轮设置在所述防爆盖3远离电磁线圈2的一侧。
具体的，如图2所示，所述防爆盖3、电磁线圈2和电磁铁壳体1的中心设有通孔，所述制动链轮4的中心设有沉孔，所述拉杆的杆帽抵住所述沉孔的台阶，所述拉杆的尾部穿过所述防爆盖3、电磁线圈2和电磁铁壳体1，并通过所述销孔701连接到外部机构上；所述电磁线圈2通电后，磁吸所述制动链轮4向所述电磁线圈2靠近，所述拉杆起限位导向作用。
请参阅图1，本发明的一个优选实施例中，所述拉杆7上套装有弹簧5，所述弹簧5限位支撑所述制动链轮4。所述弹簧5与所述制动链轮4之间套装有限位支撑所述弹簧5的铜管6或铜帽。
具体的，所述弹簧5在所述电磁线圈2断电的情况下伸张，撑开所述制动链轮4，使得所述制动链轮4远离所述电磁线圈2，实现制动功能。
请参阅图1，本发明的一个可选实施例中，所述防爆盖3与所述电磁铁壳体1螺纹配合。
所述防爆盖3拧进所述电磁铁壳体1内，将所述电磁线圈2密封。同时隔爆盖外露的一侧表面与电磁铁壳体端面重合或者略低于电磁铁壳体端面。
本发明提供的另一实施例中，一种制动器，包括制动件、壳体和如上任一所述的防爆电磁铁装置，所述制动件和防爆电磁铁装置安装在所述壳体上，所述防爆电磁铁装置带动所述制动件运动。
具体的，将所述壳体安装在电动门的电动门机上。所述防爆电磁铁装置集成了所述防爆盖3、电磁线圈2和电磁铁壳体1于一体；所述制动盘是摩擦片，所述制动盘安置于电动门机运转轴上，正常状态下，所述制动盘与电动门机形成干涉，实现所述电动门的关闭；当需要关闭电动门时，所述防爆电磁铁装置的电磁线圈2通电，所述防爆电磁铁装置磁吸所述制动链轮，使制动链轮向靠近所述电磁线圈的方向移动脱离制动盘，解除所述制动链轮对制动盘的约束，同时所述制动盘解除对电动门机的约束，电动门机运转将电动门下降关闭。或者，手动拉动所述拉杆，解除所述制动链轮对制动盘的约束，所述制动盘解除对电动门机的约束，电动门自重下降关闭。
优选的，还包括控制器，所述控制器是继电器，所述继电器与所述防爆电磁铁装置连接。正常状态下，所述制动盘与电动门形成干涉，实现所述电动门的关闭；当需要关闭电动门时，按下所述继电器上的按钮，所述继电器给所述防爆电磁铁装置的电磁线圈2通电，所述防爆电磁铁装置磁吸所述制动链轮，使制动链轮向靠近所述电磁线圈的方向移动，解除所述制动盘对电动门的约束，电动门下降关闭。
优选的，所述制动件是制动链轮，所述的制动器通过所述制动链轮干涉所述电动门机的行程，用以约束所述电动门；当需要关闭电动门时，按下所述继电器上的按钮，所述继电器给所述防爆电磁铁装置的电磁线圈2通电，所述防爆电磁铁装置磁吸所述制动链轮，使制动链轮向靠近所述电磁线圈的方向移动，解除所述制动链轮对电动门的约束，电动门下降关闭。
本发明的工作原理是：所述防爆盖3部分或全部由铝制成，由铝制成的所述防爆盖3能够使磁力线穿过，在所述防爆盖3与所述电磁铁壳体1的接触面，通过机械加工制作成较高光洁度的接触面，使得将所述防爆盖3压进或者打进电磁铁壳体1，与电磁铁壳体1形成一个整体；所述电磁铁壳体1的厚度达到设定的防爆规格。配合与之紧密连接的防爆盖3将所述电磁线圈2完全保护。
需要说明的是，本发明所采用的控制器为现有技术的应用，本专业技术人员能够根据相关的描述实现所要达到的功能，或通过相似的技术实现所需完成的技术特性，在这里就不再详细描述。
本领域技术人员在考虑说明书及实施例处的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。
Claims (10)
- 一种防爆电磁铁装置，包括电磁铁壳体和电磁线圈，其特征在于，还包括防爆盖，所述防爆盖安装在所述电磁铁壳体容纳所述电磁线圈的一侧，所述防爆盖与所述电磁铁壳体过盈配合；所述防爆盖由铝或铝合金材料制成。
- 根据权利要求1所述的一种防爆电磁铁装置，其特征在于，所述电磁铁壳体的侧面或底部设有用于所述电磁线圈出线的出线孔。
- 根据权利要求2所述的一种防爆电磁铁装置，其特征在于，所述电磁铁壳体的出线孔为螺纹孔，所述螺纹孔的螺纹扣数大于3。
- 根据权利要求1所述的一种防爆电磁铁装置，其特征在于，还包括管接头，所述管接头与所述电磁铁壳体螺纹配合。
- 根据权利要求1所述的一种防爆电磁铁装置，其特征在于，所述防爆盖与所述电磁铁壳体的接触面设置有密封件。
- 根据权利要求1所述的一种防爆电磁铁装置，其特征在于，还包括拉杆和制动链轮，所述制动链轮通过所述拉杆活动安装在所述防爆盖远离电磁线圈的一侧。
- 根据权利要求1所述的一种防爆电磁铁装置，其特征在于，所述拉杆上套装有弹簧，所述弹簧限位支撑所述制动链轮；所述弹簧与所述制动链轮之间套装有限位支撑所述弹簧的铜管或铜帽。
- 根据权利要求1所述的一种防爆电磁铁装置，其特征在于，所述防爆盖与所述电磁铁壳体螺纹配合。
- 一种制动器，其特征在于，包括制动件、壳体和如权利要求1-8任一所述的防爆电磁铁装置，所述制动件和防爆电磁铁装置安装在所述壳体上，所述防爆电磁铁装置带动所述制动件运动。
- 根据权利要求1所述的一种防爆电磁铁装置，其特征在于，还包括控制器，所述控制器与所述防爆电磁铁装置连接。
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| US3670274A (en) * | 1970-10-06 | 1972-06-13 | Skinner Precision Ind Inc | Explosion-proof valve operator |
| CN101783225A (zh) * | 2010-02-08 | 2010-07-21 | 冶金自动化研究设计院 | 一种冲击式电磁铁 |
| CN102592779A (zh) * | 2012-03-29 | 2012-07-18 | 江西直方数控动力有限公司 | 电控单体泵用防水防爆浇封型电磁铁 |
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