WO2014056348A1 - 一种电动机内装插入式混凝土振动器 - Google Patents

一种电动机内装插入式混凝土振动器 Download PDF

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Publication number
WO2014056348A1
WO2014056348A1 PCT/CN2013/081398 CN2013081398W WO2014056348A1 WO 2014056348 A1 WO2014056348 A1 WO 2014056348A1 CN 2013081398 W CN2013081398 W CN 2013081398W WO 2014056348 A1 WO2014056348 A1 WO 2014056348A1
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Prior art keywords
motor
cable
built
rubber
hose
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PCT/CN2013/081398
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English (en)
French (fr)
Inventor
舒天逸
舒展
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上海伺服电机控制有限公司
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Publication of WO2014056348A1 publication Critical patent/WO2014056348A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
    • E04G21/08—Internal vibrators, e.g. needle vibrators

Definitions

  • the invention relates to a built-in concrete vibrator for electric motor, which is used for construction engineering and belongs to the technical field of construction machinery. Background technique
  • Concrete vibrators are one of the must-have tools for pouring concrete. It is inseparable from the construction industry such as building houses, road repairing, building bridges, and water conservancy projects. It is widely used.
  • the motor-mounted plug-in concrete vibrator overcomes most of the weaknesses such as large noise, short life, and high energy consumption of the external planetary cone-cone inserted concrete vibrator due to the absence of the soft shaft and the roller cone.
  • the electronically driven motor-mounted plug-in concrete vibrator also has the advantage of being lightweight, and its total weight is only a few kilograms, which greatly reduces the labor intensity of the operator.
  • it has a fatal weakness that the output power is small to meet the construction requirements. This is because the built-in motor of the vibrating rod cannot be enlarged by the outer diameter of the vibrating rod, and the length cannot be made long by the process limitation, thus limiting the motor power.
  • the self-weight of the motor will reduce important amplitudes such as the amplitude of the vibrating bar and the load on the bearing. Therefore, to overcome its Achilles heel, the power density of the motor must be increased. Improving the power density of the motor must make a breakthrough in materials and technology, otherwise it cannot be achieved.
  • Patent No. ZL 200610148340.4 the invention patent entitled “Motor-in-inserted concrete vibrator and its abnormal operation protection method” has made substantial progress in this respect, and the output power of the same rod diameter has been improved by 3 times compared with other technologies. The problem that the output power of the plug-in concrete vibrator in the motor is insufficient is solved.
  • this technology still has the following limitations:
  • the prior art is still not suitable for the production of small-sized (bar diameter less than 40 mm) motor-inserted plug-in concrete vibrating rods, because the inner diameter of the motor is too small, and the lower wire is difficult to realize.
  • small-size (bar diameters greater than 50mm) vibrating bars in the actual manufacturing process, it is also required to go offline in a small inner diameter (less than 20mm) and a relatively long inner diameter (greater than 100mm).
  • the notch is very small, only about 2mm wide, the difficulty of the lower line is very large, and the production efficiency is not high. It is easy to scratch the enameled wire during the offline process, causing quality hazards.
  • higher voltage levels such as the commonly used 380V
  • the number of winding turns is more, the wire diameter is finer, and the finished product yield is low, which is not suitable for mass production.
  • the lead wire For oil-cooled vibrators, the lead wire needs to be sealed in addition to vibration protection to prevent leakage of the cooling oil. Since the vibrating rod works, the temperature varies greatly, and the internal pressure changes accordingly. At the same time, it is in a state of severe vibration, and the prior art is difficult to meet the requirements of both assembly and maintenance and sealing and protection of the lead wires.
  • An object of the present invention is to provide a high-power, energy-saving motor built-in plug-in type concrete vibrator which is suitable for production, maintenance and maintenance of a product having a voltage of 380 V and various other common voltage levels and various specifications.
  • the technical solution of the present invention provides a motor-mounted plug-in concrete vibrator including a power cord, a controller, a connecting cable, a rubber hose and a vibrating rod, a power cord connection controller, and a rubber hose connection.
  • Vibrating rod, connecting cable through rubber hose to connect controller and vibrating rod; vibrating rod consists of housing and inner motor installed in housing and eccentric block on inner motor shaft; built-in motor is rotorless position sensor forever
  • the magnetic motor is characterized in that: the stator of the built-in motor of the vibrating rod is made up of iron cores which are laminated with the same punching piece by three lobes, assembled by winding and assembled, and each petal core has only one tooth.
  • the outlet opening of the housing of the vibrating rod and the lead seal of the built-in motor are clamped in the middle by two rubber bands, and the two rubber bands are axially compressed by the inner pressure plate and the outer pressure plate.
  • the two rubber bands are protected and sealed, and radially expanded outwardly to compress the casing to seal the outlet of the vibrating bar.
  • the connecting cable comprises an external connecting cable and a connecting cable in the rubber hose, and the external connecting cable is connected to the rubber hose and the connecting cable in the rubber hose through the connecting component.
  • the connecting component comprises a hose tail sleeve, a male connector, a female connector, a connecting ring and a cable sheath; the hose sleeve is cold pressed on the rubber hose; the male connector and the female connector are connected
  • the connecting cable in the external connecting cable and the rubber hose is placed in the hose tail sleeve; the connecting ring is screwed to fix the cable sheath on the hose tail sleeve; the outer insulating rubber of the external connecting cable
  • the cable sheath is glued to the cable sheath; the portion of the external connecting cable located in the cable sheath is stripped of the outer layer except the portion that is glued to the cable sheath Insulating rubber, the cable core wire is freely arranged in the inner space of the cable sheath.
  • the invention solves the production problems of various series from large to small various specifications and various voltage levels, especially 380V products; after the punching is divided into three petals, the narrow space is opened, and the inner diameter of the stator is too small, iron is completely improved.
  • the core is too long, the notch is small, and the downline problem is brought about.
  • the notch becomes an open type, which is as large as inside and outside, and the winding can be directly put in, completely solving the problem of the down-line of the built-in motor.
  • the lowering speed of the built-in motor is increased by more than 10 times; the product processing pass rate is increased from 85% to 99.5%; the winding can be tightened when assembled, and the motor slot fullness is increased from 40% to 80%.
  • FIG. 1 is a schematic view showing the overall structure of a motor-mounted plug-in concrete vibrator provided by the present invention
  • FIG. 2 is a schematic structural view of a vibrating rod
  • Figure 3 is a schematic structural view of a stator punching piece
  • Figure 4 is a schematic view of the stator core after splicing
  • Figure 5 is a front elevational view of the seal assembly
  • Figure 6 is a cross-sectional view taken along line A-A of Figure 5;
  • Figure 7 is a front elevational view of the connection assembly
  • Figure 8 is a cross-sectional view taken along line A-A of Figure 7; detailed description
  • the present invention provides a motor-mounted plug-in concrete vibrator including a power cord 1, a controller 2, an external connection cable 3, a connection assembly 4, a rubber hose 5 connection cable, and a rubber hose 5 And vibrating rod 6.
  • the controller 2 respectively leads out the power line 1 and the external connection cable 3, the power line 1 of the controller 2 is connected to the power source, and the external connection cable 3 is connected to the rubber hose 5 and the rubber hose via the connection assembly 4.
  • the connecting cables in 5 are connected, and the connecting cable in the rubber hose 5 and the rubber hose 5 is connected to the vibrating rod 6; the rubber hose 5 is used for hand-held operation, and the connecting cable is used for electrical connection between the controller 2 and the vibrating rod 6. .
  • the vibrating bar 6 includes a housing 7, an eccentric block 8, an internal motor 9, and a sealing assembly 10; the built-in motor 9 is mounted in the housing 7, and the eccentric block 8 is connected to the rotating shaft of the built-in motor 9, the controller 2
  • the drive inner motor 9 rotates to drive the eccentric block 8 to operate at a high speed to vibrate the vibrating rod 6.
  • the lead wire of the built-in motor 9 is connected to the connecting cable in the rubber hose 5 through the sealing assembly 10, and the sealing assembly 10 protects the lead wire and has a sealing fit between the outer circumferential surface and the inner wall of the casing 7, sealing the outlet of the vibrating rod 6. .
  • the stator of the built-in motor 9 is formed by splicing three identical stator cores, each stator core has only one tooth 9-1, and each stator core is laminated by a punch.
  • the shape of the punch forming the three-piece stator core is the same.
  • a groove 9-2 is formed in a portion of each of the stator cores on both sides of the tooth 9-1, and the winding is wound and placed in the groove 9-2.
  • the three-blade stator core with the windings placed in the mold is spliced and wired, and the epoxy resin is sealed into the stator in the groove 9-2 and the winding end.
  • the three-pronged splicing structure provided by the invention completely solves the problem of the downline of the built-in motor 9.
  • the winding can be pressed during the assembly process, the space utilization of this structure is very high, and the power density of the built-in motor 9 is further increased.
  • the seal assembly 10 includes an inner pressure plate 11, an inner rubber band 12, an outer rubber band 13 and an outer pressure plate 14 which are laminated in this order from the direction in which the motor 9 is mounted to the direction of the rubber hose 5.
  • the lead wire of the built-in motor 9 passes through the inner rubber band 12 and is guided to the center between the inner rubber band 12 and the outer rubber band 13, and then passes through the outer rubber band 13.
  • the inner pressure plate 11, the inner rubber band 12 and the outer rubber band 13 are pressed against the bearing housing of the inner motor 9 by a pressing screw and an outer pressure plate 14.
  • the inner rubber band 12 and the outer rubber band 13 are axially pressed to protect and seal the lead wires while expanding outward in the circumferential direction to press the casing 7 to seal.
  • This structure can withstand strong vibrations and high pressures, protect the leads, and improve product reliability and service life.
  • FIG. 7 and FIG. 8 it is a schematic structural view of the connection assembly 4.
  • the tail sleeve 15 is cold pressed on the rubber hose 5, and the connecting cable core 3b and the external connecting cable core 3a in the rubber hose 5 are connected by the male connector 16 and the female connector 17, the male connector 16 and the female connector 17 is inserted into the tail sleeve 15, the cable sheath 19 and the connecting cable 3 are sealed with glue, and the connecting ring 18 and the tail sleeve 15 are screwed to press the cable sheath 19 against the tail sleeve 15 to seal and Connection effect.
  • When replacing the connecting cable simply unscrew the connecting ring 18 and pull out the connector. Most of the cable damage is in the area where it is easy to bend.
  • the most easily broken portion of the cable is connected to the root of the external connection of the cable 3 and the rubber hose 5.
  • the cause of the cable life is significantly shortened.
  • the inner core of the cable is subjected to excessive compression and compression to be bent into a zigzag shape, and the copper wire is bent into After the Z-shape can not be restored, in the subsequent use, the Z-shaped part becomes a weak link, and the slight bending causes the internal core wire to be stretched and adjusted by the Z-shaped middle section to be folded or pulled out, resulting in two inflection points.
  • the bending at a large angle is like a folding fan.
  • the method of the present invention is to strip the outer insulating rubber of the outer connecting cable 3 located inside the cable sheath 19, and the outer cable core 3a has free space in the cable sheath 19, and when bent, the outer cable core 3a It is not subject to compression and compression, avoiding Z-shaped deformation, significantly improving cable life and reducing the size of cable jacket 19.
  • connection assembly 4 adopts the conventional conventional structure, and the other structures are the same as those of the first embodiment.
  • sealing assembly 10 adopts the conventional conventional structure, and other structures are the same as those of the first embodiment.
  • connection assembly 4 and the sealing assembly 10 are both of the conventional structure and the other structures are the same as those of the first embodiment. While the invention has been described with reference to the embodiments described above, those skilled in the art The present invention is not limited by the scope of the present invention, and it is intended that the modifications and variations of the embodiments described above fall within the scope of the appended claims.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

一种电动机内装插入式混凝土振动器，包括电源线（1）、控制器（2）、连接电缆、橡胶软管（5）和振动棒（6），其中，振动棒（6）由壳体（7）和设在壳体（7）内的内装电动机（9）以及设在内装电动机（9）转轴上的偏心块（8）组成；进一步地，内装电动机（9）的定子由三片用相同冲片叠压成的铁芯绕组后拼装而成，每片铁芯仅有一个齿（9-1）；内装电动机（9）的引线夹在两层橡皮圈（12、13）之间并通过内压板（11）和外压板（14）压紧而进行密封。该振动器解决了内装电动机（9）的下线问题和引线密封的问题。

Description

一种电动机内 入式混凝土振动器
技术领域
本发明涉及一种电动机内装插入式混凝土振动器， 用于建筑工程施工， 属于 建筑机械技术领域。 背景技术
混凝土振动器是浇筑混凝土的必备工具之一。 盖房、 修路、 造桥、 水利工程 等建筑行业离不开它， 应用十分广泛。
电动机内装插入式混凝土振动器由于没有了软轴和滚锥，克服了电机外置式 行星滚锥插入式混凝土振动器的噪音大、寿命短、 能耗大等大部份弱点。 电子驱 动的电动机内装插入式混凝土振动器还有重量轻的优点，它的全部重量只有几公 斤， 大大降低了操作人员的劳动强度。但它存在输出功率小满足不了施工要求的 致命弱点，这是由于振动棒的内装电机受振动棒外径的限制不能做大， 长度受工 艺的限制也不能做长， 因此限制了电机功率。此外， 电机的自重会降低振动棒的 振幅和加大轴承的负荷等重要性能指标。因此要克服它的致命弱点必须提高电机 的功率密度。提高电机的功率密度必须在材料和技术上有所突破，否则无法实现。
专利号为 ZL 200610148340.4， 名称为 《电动机内装插入式混凝土振动器及 其不正常操作保护方法》的发明专利在这方面取得了实质性进展，相同棒径的输 出功率比其它技术提高了 3倍，解决了电机内装插入式混凝土振动器输出功率不 够的问题。 然而， 该技术仍然存在以下局限性：
现有技术仍不适合于小规格（棒径小于 40mm) 电机内装插入式混凝土振动 棒的生产制造，因为电机内径太小，下线难以实现。对于大规格（棒径大于 50mm) 振动棒， 在实际生产制造过程中， 也需要在很小的内径 （小于 20mm)和相对内 径很长 （大于 100mm) 的定子里下线。 槽口又很小， 只有 2mm左右宽， 下线的 难度很大， 生产效率不高。 在下线过程中容易刮伤漆包线， 造成质量隐患。 对于 较高的电压等级 （如常用的 380V), 由于绕组匝数需要更多， 线径更细， 成品合 格率很低， 不适宜于大规模生产制造。
对于油冷却的振动棒， 引出线除了需要避振保护外， 还需要密封， 以防止冷 却油外漏。由于振动棒工作时，温度变化范围很大，随之内部的压力变化也很大， 同时处在剧烈的振动状态，现有技术很难做到既方便装配、维修又满足密封和保 护引出线的要求。
此外， 电机内装式振动棒的寿命提高了， 电缆线的寿命就变成了系统的薄弱 环节。现有技术振动棒与控制器相连的电缆线和棒体不能简单方便地拆分，在实 际使用中电缆线损坏了要连振动棒一起维修，使得使用者就可以维修的小问题变 成只有专业人员才能维修的大问题， 给使用带来不便， 也增加了维修成本。 发明内容
本发明的目的在于提供一种结构适合于 380V电压及其它各种常用电压等级 和各种规格产品的生产制造、使用维护方便的大功率、节能电动机内装插入式混 凝土振动器。
为了达到上述目的，本发明的技术方案是提供了一种电动机内装插入式混凝 土振动器， 包括电源线、 控制器、 连接电缆、 橡胶软管和振动棒， 电源线连接控 制器， 橡胶软管连接振动棒， 连接电缆穿过橡胶软管连接控制器和振动棒； 振动 棒由壳体和设在壳体内的内装电动机以及设在内装电动机转轴上的偏心块组成； 内装电动机为无转子位置传感器永磁电动机； 其特征在于： 所述振动棒的内装电 动机的定子由三瓣用相同冲片叠压成的铁芯，装好绕组后拼装而成，每瓣铁芯仅 有一个齿。
优选地，所述振动棒的壳体的出线口密封和所述内装电动机的引线密封，采 用两层橡皮圈将引线夹在中间并通过内压板和外压板将两层橡皮圈轴向压紧，使 两层橡皮圈保护并密封引线并沿径向向外膨胀与所述壳体压紧，密封所述振动棒 的出线口。
优选地，所述连接电缆包括外部连接电缆及橡胶软管内的连接电缆， 外部连 接电缆通过连接组件与所述的橡胶软管及橡胶软管内的连接电缆连接。
优选地， 所述连接组件包括软管尾套、 公接插件、 母接插件、 连接环及电缆 护套； 软管尾套冷压在橡胶软管上； 公接插件和母接插件接插连接所述外部连接 电缆和橡胶软管内的连接电缆后放入软管尾套内；连接环通过螺纹将电缆护套压 紧固定在软管尾套上； 所述外部连接电缆的外层绝缘橡胶与电缆护套用胶胶接； 所述外部连接电缆位于电缆护套内的部分除与电缆护套胶接的部分外剥除外层 绝缘橡胶， 电缆芯线自由排布在电缆护套内部空间内。
本发明解决了全系列从大到小各种规格和各种电压等级特别是 380V产品的 生产制造问题； 冲片分为三瓣后， 打开了狭小空间， 彻底改善了由于定子内径太 小， 铁芯太长， 槽口又小， 带来的下线难题。 槽口变成开口型， 里外一样大， 绕 组可以直接放进去，彻底解决了内装电机的下线问题。 内装电机的下线速度与现 有技术相比， 提高 10倍以上； 产品加工合格率从 85%提高到 99.5% ; 拼装的时 候可将绕组压紧， 电机槽满率从 40 %提高到 80 %， 空间利用率明显提高， 绕组 线径变粗， 热负荷降低， 电机的功率密度与现有技术比提高接近一倍， 使振动棒 的出力和可靠性更好； 同时解决了现有技术存在的引线密封问题； 提高了电缆使 用寿命， 并解决了产品连接电缆的维修更换问题。 附图说明
图 1 为本发明提供的一种电动机内装插入式混凝土振动器的总体结构示意 图；
图 2为振动棒的结构示意图；
图 3为定子冲片的结构示意图；
图 4为拼接后的定子铁芯示意图；
图 5为密封组件的正视图；
图 6为图 5的 A-A向剖视图；
图 7为连接组件的正视图；
图 8为图 7的 A-A向剖视图。 具体实施方式
为使本发明更明显易懂， 兹以优选实施例， 并配合附图作详细说明如下。 实施例 1
如图 1所示，本发明提供的一种电动机内装插入式混凝土振动器，包括电源 线 1、 控制器 2、 外部连接电缆 3、 连接组件 4、 橡胶软管 5内连接电缆、 橡胶软 管 5和振动棒 6。 控制器 2分别向外引出电源线 1及外部连接电缆 3， 控制器 2 的电源线 1连接电源，外部连接电缆 3经由连接组件 4与橡胶软管 5及橡胶软管 5内的连接电缆相连， 橡胶软管 5和橡胶软管 5内的连接电缆连接振动棒 6; 橡 胶软管 5用于手持操作， 连接电缆用于控制器 2和振动棒 6之间的电气连接。
振动棒 6如图 2所示， 包括壳体 7、 偏心块 8、 内装电动机 9、 密封组件 10; 内装电动机 9安装在壳体 7内，偏心块 8连接在内装电动机 9的转轴上，控制器 2驱动内装电动机 9旋转， 从而带动偏心块 8高速运转， 使振动棒 6振动。 内装 电动机 9的引线穿过密封组件 10与橡胶软管 5内的连接电缆相连， 密封组件 10 对引线形成保护且其外圆周面与壳体 7内壁之间密封配合，密封振动棒 6的出线 口。
如图 3及图 4所示， 内装电动机 9的定子由三瓣相同的定子铁芯拼接而成， 每瓣定子铁芯仅有一个齿 9-1， 且每瓣定子铁芯由冲片叠压而成， 构成三瓣定子 铁芯的冲片形状相同。 在每瓣定子铁芯位于齿 9-1的两侧的部分上形成槽 9-2， 绕组绕好后放入槽 9-2内。放好绕组的三瓣定子铁芯放入模具内拼接后连线并在 槽 9-2内和绕组端部灌入环氧树脂固封成定子。本发明提供的三瓣拼接结构彻底 解决了内装电动机 9的下线问题。在拼装过程中可将绕组压紧，这种结构的空间 利用率非常高， 内装电动机 9的功率密度进一步提高。
如图 5及图 6所示， 密封组件 10包括由内装电动机 9所在方向至橡胶软管 5所在方向依次层叠的内压板 11、 内橡皮圈 12、 外橡皮圈 13及外压板 14。 内装 电动机 9的引线穿过内橡皮圈 12后在内橡皮圈 12和外橡皮圈 13之间引向中心， 然后穿过外橡皮圈 13。 通过压紧螺钉和外压板 14将内压板 11、 内橡皮圈 12和 外橡皮圈 13压紧在内装电动机 9的轴承座上。 内橡皮圈 12和外橡皮圈 13经轴 向挤压后将引线保护并密封在其中，同时在圆周方向上向外膨胀与壳体 7压紧起 到密封作用。这种结构能经受强烈的振动和很大的压力， 保护引线， 提高产品的 可靠性和使用寿命。
如图 7及图 8所示， 为连接组件 4的结构示意图。 尾套 15冷压在橡胶软管 5上，橡胶软管 5内的连接电缆芯线 3b和外部连接电缆芯线 3a通过公接插件 16 及母接插件 17连接， 公接插件 16及母接插件 17接插后放入尾套 15内， 电缆护 套 19和连接电缆 3用胶胶接密封， 连接环 18与尾套 15用螺纹连接将电缆护套 19压紧在尾套 15上起密封和连接作用。 更换连接电缆时只需拧开连接环 18拔 开接插件即可。 电缆线的损坏大部分在容易折弯的部位，对于电动机内装插入式 混凝土振动器而言， 电缆线最容易折断的部位在外部连接电缆 3 与橡胶软管 5 连接的根部。通过大量损坏电缆的解剖分析，发现造成电缆寿命明显缩短的原因， 是电缆受到过份折弯时造成电缆内侧芯线受到过大的压缩挤压而折弯成 Z字型， 铜线折弯成 Z字型后不能恢复， 在后续的使用中， Z字型部位成了薄弱环节， 轻 微弯曲造成内部芯线的伸缩都会通过 Z字型中间段的折进或拉出来调节， 造成 两个拐点作大角度的弯曲， 就象折扇一样。这样固定一个点的大角度弯曲， 造成 铜线很快折断。 通常通过加大电缆护套 19来提高电缆线的寿命。 但在混凝土振 动棒上效果不佳， 当受到很大拉力时， 弯曲半径仍然会很小， 这在工地上会经常 出现。 本发明的方法是将位于电缆护套 19内部的外部连接电缆 3的外层绝缘橡 胶剥除， 外部电缆芯线 3a在电缆护套 19内有自由空间， 在弯曲的时候， 外部电 缆芯线 3a不会受到压缩挤压， 避免了造成 Z字型变形， 明显改善了电缆寿命， 减小了电缆护套 19的尺寸。
实施例 2
本实施例与实施例 1的区别在于， 连接组件 4采用现有的常规结构， 其他结 构与实施例 1相同。
实施例 3
本实施例与实施例 1的区别在于， 密封组件 10采用现有的常规结构， 其他 结构与实施例 1相同。
实施例 4
本实施例与实施例 1的区别在于， 连接组件 4及密封组件 10均采用现有的 常规结构， 其他结构与实施例 1相同。 虽然本发明已参照上述的实施例来描述， 但是本技术领域中的普通技术人 员，应当认识到以上的实施例仅是用来说明本发明，应理解其中可作各种变化和 修改而在广义上没有脱离本发明，所以并非作为对本发明的限定， 只要在本发明 的实质精神范围内，对以上所述的实施例的变化、变形都将落入本发明权利要求 的保护范围。

Claims

权利要求：
1. 一种电动机内装插入式混凝土振动器， 包括电源线 （1 )、 控制器 （2)、 连接 电缆、橡胶软管（5)和振动棒（6)， 电源线（1 )连接控制器（2)， 橡胶软管（5) 连接振动棒 （6)， 连接电缆穿过橡胶软管 （5) 连接控制器 （2) 和振动棒 （6); 振动棒 （6) 由壳体 （7)和设在壳体 （7) 内的内装电动机 （9) 以及设在内装电 动机 （9) 转轴上的偏心块 （8) 组成； 内装电动机 （9) 为无转子位置传感器永 磁电动机； 其特征在于： 所述振动棒（6) 的内装电动机（9) 的定子由三瓣用相 同冲片叠压成的铁芯， 装好绕组后拼装而成， 每瓣铁芯仅有一个齿 （9-1 )。
2. 如权利要求 1所述的一种电动机内装插入式混凝土振动器， 其特征在于： 所 述振动棒 （6) 的壳体 （7) 的出线口密封和所述内装电动机 （9) 的引线密封， 采用两层橡皮圈将引线夹在中间并通过内压板（11 )和外压板（14)将两层橡皮 圈轴向压紧， 使两层橡皮圈保护并密封引线并沿径向向外膨胀与所述壳体 （7) 压紧， 密封所述振动棒 （6) 的出线口。
3. 如权利要求 1所述的一种电动机内装插入式混凝土振动器， 其特征在于： 所 述连接电缆包括外部连接电缆（3)及橡胶软管（5) 内的连接电缆， 外部连接电 缆 （3)通过连接组件 （4)与所述的橡胶软管 （5)及橡胶软管 （5) 内的连接电 缆连接。
4. 如权利要求 3所述的一种电动机内装插入式混凝土振动器， 其特征在于： 所 述连接组件 （4)包括软管尾套 （15)、 公接插件 （16)、 母接插件 （17)、 连接环
( 18)及电缆护套（19); 软管尾套（15)冷压在橡胶软管（5)上； 公接插件（16) 和母接插件 （17)接插连接所述外部连接电缆（3)和橡胶软管（5 ) 内的连接电 缆后放入软管尾套 （15) 内； 连接环 （18 )通过螺纹将电缆护套 （19)压紧固定 在软管尾套 （15)上； 所述外部连接电缆（3) 的外层绝缘橡胶与电缆护套 （19) 用胶胶接； 所述外部连接电缆 （3) 位于电缆护套 （19) 内的部分除与电缆护套
( 19)胶接的部分外剥除外层绝缘橡胶， 电缆芯线自由排布在电缆护套（19) 内 部空间内。
PCT/CN2013/081398 2012-10-11 2013-08-13 一种电动机内装插入式混凝土振动器 WO2014056348A1 (zh)

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