WO2013166674A1 - 一种有关畜牧业使用的风扇及其生产方法 - Google Patents

一种有关畜牧业使用的风扇及其生产方法 Download PDF

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Publication number
WO2013166674A1
WO2013166674A1 PCT/CN2012/075256 CN2012075256W WO2013166674A1 WO 2013166674 A1 WO2013166674 A1 WO 2013166674A1 CN 2012075256 W CN2012075256 W CN 2012075256W WO 2013166674 A1 WO2013166674 A1 WO 2013166674A1
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WIPO (PCT)
Prior art keywords
fan
shaft
animal husbandry
bearing
coupling
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PCT/CN2012/075256
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English (en)
French (fr)
Inventor
王凯
Original Assignee
上海特瑞机械设备有限公司
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Application filed by 上海特瑞机械设备有限公司 filed Critical 上海特瑞机械设备有限公司
Priority to PCT/CN2012/075256 priority Critical patent/WO2013166674A1/zh
Publication of WO2013166674A1 publication Critical patent/WO2013166674A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/10Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
    • F04D25/105Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans

Definitions

  • the present invention relates to the field of heat dissipation technology for poultry pens, and more particularly to a fan for use in animal husbandry and a method for producing the same.
  • the fans installed in the cattle farm are usually fixed at a certain angle, and then the side of the cow is blown, and the other side of the cow body is never blown by the wind, resulting in a cool and uneven cow body. If you need to blow the wind on both sides of the body, you need to install two fans at the same time, which are blown on both sides of the cow's body. This will increase the cost of raising cattle, which is not economical.
  • the fans on the market are common. There is no thermal relay. The thermal relay will actively cut off the power when the motor overheats. The fan without the thermal relay cannot cut off the power when the motor overheats. It is very dangerous during daily use and is not safe and reliable. In addition, it is commercially available.
  • the fan is mainly made of iron shell fan.
  • the iron shell fan is easily corroded and corroded due to its material. It is not suitable for use in the environment of moisture and harmful substances. It is not easy to be cleaned and maintained in the future and is prone to leakage. Therefore, the life of the iron shell fan is short. The cost is high and unsafe, and the hollow plastic products often cannot be stressed at the same time, so as to avoid excessive compression and damage to the mechanical balance, resulting in uneven distribution of external force, so that the product has no relative stability.
  • the object of the present invention is to solve the deficiencies in the prior art and to provide a fan for use in animal husbandry and a method for producing the same, which is novel in structure, safe and reliable, excellent in performance, durable in use, and low in cost.
  • a fan for use in animal husbandry comprising a fan and a bracket, a power connection electric control box and an electric motor, wherein the bracket is composed of a rotating system, a power system and an electric control system,
  • the rotating system motor (1) has a helical gear-turbine reducer (2) on the shaft, a reducer (2) with a drive shaft (3) and an electric control box (9), and a plurality of rotating shafts on the drive shaft (4)
  • the first coupling (5) and the second coupling (6) are equidistantly arranged on the left and right sides of the plurality of rotating shafts (4), and the inner shaft of the rotating shaft (4) is provided with bearings (7), and connected to the plane bearing (8), the outer part of the rotating shaft (4) is provided with a gear, and a gear-driven turbine is provided with a fan angle adjusting bracket (10) at a lower portion of the plane bearing (8) of the rotating shaft.
  • the bracket is provided with a fan casing (11).
  • the fan casing is made of a square hollow frame structure made of rotationally molded plastic, and a circular inner cavity rotating along the fan fan blade is arranged in the middle of the square frame structure.
  • Twenty holes in the inner frame surface at the four corners of the square frame structure There are sixteen holes at the bottom of the inner frame of the four corners of the square frame structure, sixteen holes at the bottom of the inner frame correspond to sixteen holes on the inner frame surface, and four holes provided in the middle of the inner frame surface are four
  • the root support tube fixes the fan motor housing, the fan motor shaft is provided with a fan blade holder, the fan blade holder is provided with a fan blade, and a mesh cover is arranged at an equal distance between the upper and lower sides of the fan blade, and the power supply is Three-phase class 8, voltage: 380V, frequency: 50HZ, rated power: 400W, output power: 300W, current: 1.1A, speed: 720RPM, air volume: 25000m 3 /h, fan 180
  • the four motor support brackets are fixed on the rotomolded hollow plastic frame with 8.8 M10 nut locks.
  • the fan blades and the blade brackets and flanges are riveted with M6 rivets, and the flange of the fan is placed on the motor shaft. , and tighten with a pin nut to fix the protective cover on the motor support frame.
  • the rotating system is provided with a first coupling and a second coupling by a transmission shaft, a rotating shaft is arranged between the first coupling and the second coupling, a bearing is arranged in the inner cavity of the rotating shaft, and a plane bearing is arranged at the bottom. And mounting plate and load bearing nut.
  • the power system is composed of a coupling and a transmission shaft, a helical gear-turbo worm reducer and a rotating system motor.
  • the electronic control system comprises a contactor, a time relay, a thermal relay, a circuit breaker, a fuse limit switch, a button, a switch, and an indicator light.
  • Linear low-density polyethylene is used for one-shot molding by rotomolding process.
  • the raw material particles are first poured into the mixer, then various functional additives are added and mixed with a high-speed mixer, and the filler content is 65%. Stop mixing when rising to 54 degrees Celsius.
  • the additive is a composite of one or more of an antioxidant, an antistatic agent, a flame retardant, a flow promoter, an impact modifier, a silica fume or an environmentally friendly pigment.
  • the 36 bearing holes of the fan casing are combined by injection molding and rotational molding. 36 holes are provided with main reinforcing ribs and auxiliary reinforcing ribs. The main reinforcing ribs are used for the product in the case of demoulding. The pin is inserted, one pin and one pin are buckled. After the cooling is completed, the mold is smoothly released. The auxiliary reinforcing rib is injected through the injection molding.
  • the injection molded part is placed in the rotomolding product, so that the hollow part of the fan has strong support during installation, and the deformation is not deformed. Bit requirements.
  • the invention is more robust, more durable, safer and more environmentally friendly than the plastic fan casing produced by other processes in the prior art, and the additive in the product is prepared with an excellent ratio to produce uniform shrinkage, good opacity and good durability.
  • a good quality product with good light stability, good impact strength, and reduced physical and chemical properties.
  • the invention can also be smooth and shiny in the state of freely contracting, and the cutting variable is small, and the 1000mm type variable is controlled within 0.5 mm, and the precise precision control makes the rotomolded casing fan stable, durable and safe. .
  • the invention adopts a combination of injection molding and rotational molding.
  • the method adopts the innovative design of the main reinforcing rib and the auxiliary reinforcing rib, overcomes the torque of the fan in high-speed rotation, and makes the product use a high-angled pin on both sides in the case of smooth demolding, and one pin
  • the lock has a pair of molds with up to 72 locks. After the mold is cooled, 72 locks are removed in the first time, and the mold is smoothly released, which overcomes the difficulties in the prior art, and the main and auxiliary reinforcing ribs of the present invention
  • the design solves the defects that the two arms of the hollow plastic product in the prior art cannot be simultaneously stressed, and the stability and strength exceed the iron shell fan.
  • the unique rotary installation method of the invention solves the common problems and problems existing in the existing cattle farm, and exerts the maximum efficiency of the fan under the premise of saving energy, and can rotate in a predetermined time through a rotating system. This can be blown on both sides of the cow's body in turn, reaching the temperature around the body. This will save at least half the number of fans in the cattle farm and reduce the cost.
  • the present invention is also provided with a thermal relay, and the limit switch and the mechanical stop provide double insurance for the steering of the fan.
  • the brackets that can be adjusted at any angle can also be adapted to the needs of different customers in different places.
  • the air supply time in each direction can also be freely adjusted by the customer, making the whole system flexible and suitable for multiple places. Therefore, the present invention has the following advantages over the prior art:
  • Plastic housing fan easy to adjust the shape, a variety of colors, can be made according to the user's requirements for different color housing
  • the plastic frame is more stable and durable, which makes the fan less noisy, longer lasting and less maintenance;
  • the fan frame has been creatively innovated so that it can achieve multiple functions such as steering and reduce the total investment.
  • the same effect can reduce the number of fans used by 40%, create a cow house climate microcirculation, and improve the barn climate.
  • FIG. 1 is a schematic front view of a fan assembly structure of the present invention
  • FIG. 2 is a schematic right side view of the fan assembly structure of the present invention
  • FIG. 3 is a side structural view of the fan rotation system of the present invention
  • Figure 5 is a schematic view showing the structure of the back side of the fan rotating system of the present invention
  • Figure 6 is a perspective structural view of the fan rotating system of the present invention; as shown in the figure, Fig. 1: 1.
  • Rotating system motor 2.
  • Rotary shaft 5.
  • First coupling 6.
  • Second coupling 8.
  • Planar bearing 9.
  • Electric control box 10.
  • Fan angle adjustment bracket 11.
  • Fan housing 12. Mounting plate 13.
  • Fan motor 15. Fan protection cover 16.
  • the overall structure of a fan used in the animal husbandry of the present invention is mainly composed of a fan and a bracket, as shown in FIG.
  • the fan consists of a plastic casing, motor, fan blade, fan blade holder, support tube, mesh cover, motor shaft flange, motor support tube, screw, nut, rivet, pin, flat key, gasket, hoop, pad Piece composition.
  • the bracket consists of a rotating system and a power system and an electronic control system.
  • the rotating system consists of a bracket, a fan, a rotating shaft, a bearing, a flat bearing, a load bearing nut, and a mounting plate.
  • the power system consists of a coupling, a transmission shaft, a helical gear - a worm gear reducer, and an electric motor.
  • the electronic control system consists of a contactor, a time relay, a thermal relay, a circuit breaker, a fuse, a limit switch, a button, a switch, and an indicator light.
  • the plastic outer casing of the invention adopts a special rotomolding process, which is also called spin molding, rotary molding, rotary molding, rotary casting, rotary forming and the like.
  • the plastic raw material is first added into the mold, and then the mold is continuously rotated and heated along the two vertical axes, so that the plastic raw materials in the mold are gradually uniformly coated and melted and adhered under the action of gravity and heat energy.
  • the entire surface of the cavity is formed into a desired shape, and then cooled, shaped, demolded, and finally obtained.
  • the invention adopts imported LLDPE (linear low density polyethylene) to be formed by one-time rotation molding process, firstly pouring raw material particles into a mixing machine, and then adding various functional additives (such as antioxidant, antistatic agent, flame retardant, color Powder, etc.) and mix evenly with a high-speed mixer, based on 65% of the filler content, and stop mixing when the temperature rises to 54 degrees Celsius.
  • the mixed material is granulated, and the granulated particles are ground to 50 mesh, and 95% of the materials can pass this size as a standard. Sort and seal the ground powder to avoid moisture.
  • the production of the fan casing mold can be a three-arm five-position rotational molding machine with a burner power of 440,000 calories.
  • the mold was fixed at a vertical angle of 30° with a U-clip on the turntable of the rotomolding machine, and fed into the heating chamber for heating. Heating time 22 minutes, heating temperature 260 degrees Celsius, cooling time 15 minutes, the ratio of primary to secondary shaft is 7:8, heating with circulating fan, circulating fan power 4KW, forward and reverse rotation every 5 minutes during heating and cooling Whole time.
  • the surface of the mold can be made of a permanent release agent, teflon, which makes the surface of the product shiny. After the product is released, use a trimming knife to repair a small amount of raw edges and clean the mold waste. Place the product on a flat rubber mat so that it naturally shrinks for 48 hours and can be sent to the assembly shop for assembly in 48 hours.
  • the anti-UV, anti-pressure engineering plastics are used: LLDPE is formed by one-time forming by a rotational molding process, and the wall thickness is uniform, thereby achieving a balanced mechanical structure, which is stronger, more durable and safer than the plastic fan casing produced by other processes. More environmentally friendly.
  • the invention adds functional additives such as environmental protection pigments, antioxidants, antistatic agents, flame retardants, flow promoters, impact modifiers, silicon powder (warping modifier) in the production process, and is an excellent match. It produces a balanced and stable quality product with uniform physical and chemical properties, such as uniform shrinkage, good opacity, good durability, good light stability, good impact strength, and reduced warpage.
  • the more additives the more variable the index of the product produced, the more difficult it is to control.
  • the most suitable additive is adjusted. The amount added, as well as the most suitable processing.
  • the process-adjusted fan casing can also be flat and shiny in its freely contracted state.
  • the cutting variable is small, and the 1000mm type variable is controlled within 0.5mm, ensuring precise precision control to make the rotomolded casing fan more stable. Durable and safe.
  • due to the characteristics of the fan itself there are up to 36 through holes on the rotomolding part. The combination of injection molding and rotational molding is adopted.
  • the main reinforcement is used in a breakthrough manner.
  • the innovative design of the ribs and the auxiliary ribs, the main ribs are designed to improve the product and the mold, so that the product can be inserted in the case of smooth demolding with a large pitch on both sides of the pin, and a pin and a lock,
  • One The secondary mold has up to 72 locks. After the mold is cooled, 72 locks are removed in the first time, so that the product can be smoothly released.
  • the shrinkage of LLDPE is about 3%, so that many through-hole pins can be smoothly taken out in the case of excessive product volume and the product through-holes are fully sized.
  • the auxiliary reinforcing rib is made by injection molding, and the injection molded part is placed in the rotomolding product so that the hollow part of the fan has strong support during installation, and the requirement of no deformation and no displacement is achieved.
  • the biggest disadvantage of hollow plastic products is that the two walls can not be stressed at the same time, so as to avoid excessive compression and damage the mechanical balance, resulting in uneven distribution of external force so that the product has no relative stability; and the design of the main and auxiliary reinforcing ribs is a good solution to this. And from the stability and strength are more than the iron shell fan.
  • the fan structure of the present invention further includes a rotating system. As shown in FIG. 3, FIG. 4, and FIG. 5, the fan is fixed on the bracket at a specific angle, and the rotating shaft, the bearing, the plane bearing, and the bearing screw are arranged on the mounting plate.
  • the cap is fixed on the mounting plate, and the power system consists of a transmission shaft, a reducer, and a motor.
  • the power system uses a 380V three-phase power supply to provide power support for rotation, and then the electronic control device controls the rotation angle, position, and Limits, etc.
  • the rotary installation method solves the ubiquitous troubles and problems in the existing cattle farm as described in the prior art section, and exerts the maximum efficiency of the fan under the premise of saving energy, and can be performed in a predetermined time by a rotating system. Rotating, so that it can be blown on both sides of the cow's body in turn, to achieve the whole body cooling, can save at least half the number of fans for the cattle farm, reducing the cost.
  • the electric control system of the fan provides a strong guarantee for the whole system. There is no thermal relay in the market. It is very dangerous. Once the motor is overheated, the thermal relay will start and cut off the power. Limit switches and mechanical stops provide double safety for fan steering.
  • the brackets that can be adjusted at any angle can also be adapted to the needs of different customers in different places.
  • the air supply time in each direction can also be freely adjusted by the customer, making the whole system flexible and suitable for multiple places.
  • the power supply in this embodiment is three-phase 8-stage, voltage: 380V, frequency: 50HZ, rated power: 400W, output power: 300W, current: 1.1A, speed: 720RPM, air volume: 25000m 3 /h, fan 180° rotation , hollow plastic frame knot
  • the construction length is 1140mm to 2m and the width is 856.87mm to 2m.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种畜牧业使用的风扇,包括风机和支架。支架由旋转系统、动力系统及电控系统组成。旋转系统电机轴上设有斜齿-蜗轮减速机(2)。减速机(2)上设有传动轴(3)及电控箱(9)。传动轴(3)通过蜗杆机构与旋转轴(4)上的齿轮啮合。旋转轴(4)左右两边的传动轴(3)上等距离设有联轴器。旋转轴(4)内腔设有轴承(7),并与平面轴承(8)连接。在旋转轴(4)平面轴承(8)的下部设有风扇角度调节支架(10)。风扇角度调节支架(10)上设有风机壳体(11)。还包括一种风扇制造方法,其中风机壳体(11)由滚塑成型的塑料制成。该风扇的角度调节支架可以转动,扩大风扇送风面积。风机壳体强度高,安全可靠。

Description

一种有关畜牧业使用的风扇及其生产方法
[技术领域] 本发明涉及禽畜圈舍的散热技术领域, 具体是一种有关畜牧业使用的风扇 及其生产方法。
[背景技术] 众所周知, 高效养殖肉牛奶牛, 选择其适合的环境很重要。 为了牛能在良 好的环境下生长, 一般要求牛场环境要保持适宜的温度、 气流。 因此往往在牛 场中都需要设有风扇来使牛体感到凉爽。
现有技术中牛场里安装的风扇通常都只是固定在某一个角度, 然后对着牛 的一面进行吹风, 而牛体的另外一面始终吹不到风, 造成牛体凉爽不均。 如果 需要牛身体两侧都能吹到风就需要同时安装两台风扇, 分别吹在牛身体的两侧, 这样一来便增加了养牛的成本, 不经济实用; 其次, 市场上的风机普遍不存在 热继电器, 热继电器在电机过热时会主动切断电源, 而未设有热继电器的风机 则无法在电机过热时切断电源, 在日常使用过程中非常危险, 不够安全可靠; 另外, 市面上的风机以铁壳风扇为主, 铁壳风扇由于其材质原因容易受到侵害 腐蚀, 不适宜应用在潮湿及有害物质腐蚀的环境, 不易于日后的清洁保养且容 易产生漏电, 因此铁壳风扇的寿命短、 成本高、 不安全, 而中空塑料产品往往 两臂不能同时受力, 以免过度挤压破坏力学平衡造成外力分配不均匀, 使产品 没有相对稳定性。
因此, 如何更好地保证牛体凉爽而又不增加成本, 如何使风扇的寿命更长、 更安全可靠又能保证其稳定性且节约能源一直以来都是本领域技术人员一直在 致力研究、 攻克的技术难点。
[发明内容] 本发明的目的就是为了解决现有技术中的不足, 提供一种结构新颖、 安全 可靠、 性能卓越、 经久耐用、 降低成本的有关畜牧业使用的风扇及其生产方法。 为实现上述目的, 提供一种有关畜牧业使用的风扇, 包括风机和支架, 电 源连接电控箱及电动机, 其特征在于所述的支架由旋转系统和动力系统及电控 系统组成, 所述的旋转系统电机 (1) 轴上设有斜齿 -涡轮减速机 (2), 减速机 (2) 上设有传动轴 (3) 及电控箱 (9), 传动轴上设有若干个旋转轴 (4), 若 干个旋转轴 (4) 的左右两边的传动轴上等距离设有第一联轴器 (5) 和第二联 轴器 (6), 旋转轴 (4) 内腔设有轴承 (7), 并与平面轴承 (8) 连接, 旋转轴 (4) 的外部设有齿轮, 通过齿轮传动涡轮, 在旋转轴的平面轴承 (8) 的下部 设有风扇角度调节支架 (10), 支架上设有风机壳体 (11), 风机壳体由滚塑成 型的塑料制成正方形的中空框架结构, 所述的正方形框架结构中间设有沿风扇 扇片转动的圆形内腔, 在正方形框架结构四个角的内框表面设有二十个孔, 在 正方形框架结构四个角的内框底部设有十六个孔, 内框底部的十六个孔与内框 表面的十六个孔相对应, 内框表面中间设有的四个孔由四根支撑管固定风扇电 机壳体, 风扇电机轴上设有扇叶固定架, 扇叶固定架上装有扇叶, 在扇叶的上 面和下面等距离设有网罩构成, 所述的电源为三相 8级, 电压: 380V, 频率: 50HZ, 额定功率: 400W, 输出功率: 300W, 电流: 1.1A, 转速: 720RPM, 风量: 25000m3 /h, 风扇 180° 旋转, 中空塑料的框架结构长为 1140mm至 2m, 宽为 856.87mm至 2m。 四个电机支撑架用 8. 8级 M10螺帽锁固定在滚塑成型的中空塑料框架上, 用 M6铆钉将扇叶和扇叶支架及法兰铆接, 将风扇的法兰放在电机轴上, 并用销 钉螺帽拧紧, 将保护罩固定在电机支撑架上。 旋转系统由传动轴设有第一联轴器和第二联轴器, 在第一联轴器和第二联 轴器之间设有旋转轴, 旋转轴内腔设有轴承, 底部设平面轴承和安装板及承重 螺帽。 所述的动力系统由联轴器和传动轴、 斜齿 -涡轮蜗杆减速机和旋转系统电机 构成。 所述的电控系统包括接触器、 时间继电器、 热继电器、 断路器、 保险丝限 位开关、 按钮、 开关、 指示灯组成。 一种有关畜牧业使用的风扇的生产方法, 其特征在于风机壳体采用滚塑成 型的方法包括以下步骤:
1) 采用线性低密度聚乙烯运用滚塑工艺一次成型, 先将原料颗粒倒入混料 机, 然后加入各种功能性添加剂并用高速混料机, 均匀混合, 以填料量 65%为基准, 温度上升至 54摄氏度时停止混合.
2) 将混完成后的颗粒进行造粒, 将造粒完成后的颗粒研磨到 50 mesh; 将研 磨后的粉料分类并封口, 避免粉料受潮, 采用三臂五工位的滚塑机, 燃 烧器功率 44万卡;
3) 将模具以 30 ° 的垂直夹角, 用 U型夹将其固定在滚塑机转盘上, 投料并 进加热室加热; 4) 加热时间 22分钟, 加热温度 260摄氏度, 冷却时间 15分钟, 主副轴之 比为 7 : 8, 采用循环风机加热, 循环风机功率 4KW, 在加热和冷却过程中 每 5分钟正转反转调整一次;
5) 模具表面涂覆有永久性脱模剂 teflon, 使得产品表面富有光泽;
6) 产品出模后用修边刀修理少量毛边, 并清理模具垃圾;
7) 将产品放置在一块平整的橡胶垫上, 使其自然收縮 48小时, 48小时候即 可送至装配车间装配。 添加剂为抗氧化剂、 防静电剂、 阻燃剂、 流动促进剂、 冲击性改善剂、 硅 粉或环保色素的一种或多种复合。 风机壳体 36个承重孔采用注塑和滚塑相结合的工艺, 36个孔设有主加强肋 和辅助加强肋, 主加强肋是对产品在脱模情况下, 使用大斜度的两侧销钉对插, 一个销钉一个锁扣, 冷却完毕后顺利出模, 辅助加强肋是通过注塑, 在滚塑产 品中放置注塑件使风扇中空部分在安装时有了强有力支撑, 达到不变形不移位 的要求。 本发明与现有技术中其他工艺生产的塑料风机外壳更结实、 更耐用、 更安 全、 更环保, 将产品中的添加剂调制绝佳配比来生产出收縮率均匀、 不透明性 良好、 耐久性良好、 光稳定性良好、 冲击强度良好、 翘曲量降低的物理和化学 性能均衡稳定优质产品。 本发明在自由在其自由收縮的状态下也可以表面平整 且富有光泽, 切型变量小, 1000mm的型变量控制在 0. 5mm以内, 其精准的精度 控制使得滚塑外壳风扇稳定、 耐用、 安全。 本发明采用了注塑和滚塑相结合的 方法, 采用了主加强肋和辅助加强肋的创新设计, 克服了风扇在高速旋转中的 扭力, 使产品在顺利脱模的情况下使用了大斜度的两侧销钉对插, 并且一个销 钉一个锁扣, 一副模具有多达 72个锁扣, 在模具冷却完毕后第一时间摘去 72 个锁扣, 顺利出模, 攻克了现有技术中的难点, 且本发明主辅加强肋的设计解 决了现有技术中中空塑料产品两臂不能同时受力的缺陷, 且从稳定性、 强度都 超过了铁壳风扇。 其次, 本发明特有的的旋转安装方式解决了现有牛场普遍存 在的困扰和难题, 在节约能源的大前提下发挥出风扇的最大效率, 通过一个旋 转系统可以在定好的时间内进行旋转, 这样可以轮流吹在牛的身体两侧, 达到 全身降温的左右。 这样一来便为牛场至少节约一半数量的风扇, 降低了大量成 本。 另外, 本发明还设有热继电器, 限位开关和机械挡块为风扇的转向提供了 双保险。 可以任意调节角度的支架也可以适应不同客户不同场所的需求, 每个 方向的送风时间也可以由客户自由调节, 使整个系统变得灵活起来, 适用于多 个场所。 因此, 本发明与现有技术相比, 存在以下优势:
1) 世界首创同类型大尺寸塑料中空框架风扇;
2) 塑料外壳风扇, 外形易于调整, 颜色也多种多样, 可以按照用户的要求 做不同颜色的外壳;
3) 塑料框架更稳固耐用, 从而使风扇的噪音更小、 寿命更长、 维护更少;
4) 同金属框架的风扇相比, 价格相当, 但却更胜一筹。 本发明的创新、 创 造为使风扇的性价比大大提升, 年风扇使用费大幅下降约 3倍以上;
5) 不怕环境潮湿、 不怕有害物质腐蚀, 水洗后可以使风扇焕然一新; 6) 抗冲击、 防漏电危害能力远远大于金属框架的风扇;
7) 对风扇框架进行了创造性的革新, 使之可以实现转向等多重功能, 降低 总投资, 同样效果可以减少风扇使用数量 40%, 创造牛舍气候微循环,改 善牛舍小气候。
[附图说明] 图 1是本发明风扇总装结构示意主视图; 图 2是本发明风扇总装结构示意右视图; 图 3是本发明风扇旋转系统的侧面结构示意图; 图 4是本发明风扇旋转系统的正面结构示意图; 图 5是本发明风扇旋转系统的背面结构示意图; 图 6是本发明风扇旋转系统的立体结构实体图; 如图所示, 图中: 1.旋转系统电动机 2.斜齿-涡轮蜗杆减速机 3.传动轴 4.旋转轴 5.第一联轴器 6.第二联轴器 8.平面轴承 9.电控箱 10.风扇 角度调节支架 11.风扇壳体 12.安装板 13.承重螺帽 14.风扇电机 15. 风扇保护罩 16.电机支撑架 17.轴承 19.垫板 20.扇叶 21.加强抱箍 22.蜗杆 23.涡轮; 指定图 4为本发明的摘要附图。 [具体实施方式] 下面结合附图对本发明作进一步说明, 这种装置的结构和原理对本专业的 人来说是非常清楚的。
本发明中一种有关畜牧业使用的风扇的整体结构主要由风机和支架组成, 如图 3所示。 风机由塑料外壳、 电机、 扇叶、 扇叶固定架、 支撑管、 网罩、 电 机轴法兰、 电机支撑管、 螺丝、 螺帽、 铆钉、 销子、 平键、 垫片、 抱箍、 垫片 组成。 支架由旋转系统和动力系统、 电控系统组成。 旋转系统包括支架、 风扇、 旋转轴、 轴承、 平面轴承, 承重螺帽、 安装板组成。 动力系统包括联轴器、 传 动轴、 斜齿 -涡轮蜗杆减速机、 电动机组成。 电控系统包括接触器、 时间继电器、 热继电器、 断路器、 保险丝、 限位开关、 按钮、 开关、 指示灯组成。
本发明的塑料外壳, 采用的是特有的滚塑工艺, 滚塑成型又称旋塑、 旋转 成型、 旋转模塑、 旋转铸塑、 回转成型等。 滚塑成型工艺是先将塑料原料加入 模具中, 然后模具沿两垂直轴不断旋转并使之加热, 使模内的塑料原料在重力 和热能的作用下, 逐渐均匀地涂布、 熔融粘附于模腔的整个表面上, 成型为所 需要的形状, 再经冷却定型、脱模, 最后获得制品。本发明采用进口 LLDPE (线 性低密度聚乙烯) 运用滚塑工艺一次成型, 先将原料颗粒倒入混料机, 然后加 入各种功能性添加剂 (如抗氧化剂, 防静电剂, 阻燃剂, 色粉等) 并用高速混 料机均匀混合, 以填料量 65%为基准, 温度上升至 54摄氏度时停止混合。 将混 完成后的料进行造粒, 将造粒完成后的颗粒研磨到 50 mesh, 以 95%的材料都可 以通过这个尺寸为标准。 将研磨后的粉料分类并封口, 避免粉料受潮。 生产风 扇外壳模具可采用三臂五工位的滚塑机, 燃烧器功率 44万卡。将模具以 30° 的 垂直夹角, 用 U型夹将其固定在滚塑机转盘上, 投料并进加热室加热。 加热时 间 22分钟, 加热温度 260摄氏度, 冷却时间 15分钟, 主副轴之比为 7:8, 采用 循环风机加热, 循环风机功率 4KW, 在加热和冷却过程中每 5分钟正转反转调 整一次。 模具表面可采用永久性脱模剂 teflon, 使得产品表面富有光泽。 产品出 模后用修边刀修理少量毛边, 并清理模具垃圾。 将产品放置在一块平整的橡胶 垫上, 使其自然收縮 48小时, 48小时候即可送至装配车间装配。将自由收縮完 成的风扇外壳进行精细的修整处理, 将 32个注塑撑件放入 16个电机安装孔里, 将四个电机支撑架用 8.8级 M10螺帽锁紧, 用 M8铆钉使用铆接机将扇叶, 扇 叶支架和法兰铆接起来, 并上动平衡试验机微调至四片扇叶完全平衡为止, 将 风扇的法兰放在方框中央的电机轴上, 并用销钉螺帽拧紧, 最后将后保护罩用 尼龙扎带固定在电机支撑架上, 并通过各项检测后即可出厂。 本实施例采用防 紫外线, 抗压工程塑料: LLDPE运用滚塑工艺一次成型, 壁厚均匀, 从而达到 一个均衡的力学结构, 相比其他工艺生产的塑料风机外壳更结实、 更耐用、 更 安全、 更环保。 本发明在生产过程中添加了环保色素、 抗氧化剂、 放静电剂、 阻燃剂、 流动促进剂、 冲击性改善剂、 硅粉 (翘曲改善剂)等功能性添加剂, 以一 个绝佳的配比来生产出收縮率均匀、 不透明性良好、 耐久性良好、 光稳定性良 好、 冲击强度良好、 翘曲量降低的物理和化学性能均衡稳定优质产品。 就滚塑 而言添加剂越多, 生产出的产品的各项指标变量就越多, 越不易控制, 为了使 得风扇外壳能用足够高的强度和稳定性, 调整出最适合的添加剂, 最适合的添 加量, 以及最适合的加工工艺。 经过工艺调整后的风扇外壳, 在其自由收縮的 状态下也可以表面平整且富有光泽, 切型变量小, 1000mm的型变量控制在 0.5mm以内, 确保精准的精度控制使滚塑外壳风扇更稳定、 耐用、 安全。 另外, 由于风扇本身的特性决定了滚塑件上有多达 36个通孔, 采用了注塑和滚塑相结 合的解决办法, 为了克服风扇在高速旋转中的扭力, 突破性地使用了主加强肋 和辅加强肋的创新设计, 主加强肋是通过对产品和模具的改进设计, 使产品在 顺利脱模的情况下使用了大斜度的两侧销钉对插, 并且一个销钉一个锁扣, 一 副模具有多达 72个锁扣, 在模具冷却完毕后第一时间摘去 72个锁扣, 使产品 顺利出模。 LLDPE的收縮率是 3%左右, 以使诸多的通孔销钉能够在产品体积 过大的情况下依然顺利脱出并使产品通孔完全符合尺寸。 辅助加强肋是通过注 塑, 在滚塑产品中放置注塑件使风扇中空部分在安装时有了强有力支撑, 达到 不变形不移位的要求。 中空塑料产品最大的缺点就是两壁不能同时受力, 以免 过度挤压破坏力学平衡, 造成外力分配不均使产品没有相对稳定性; 而主辅加 强肋的设计恰巧是很好的解决了这一点, 并且从稳定性、 强度都超过了铁壳风 扇。
本发明的风扇结构中还包括旋转系统, 如附图 3、 附图 4、 附图 5所示, 风 扇按照特定角度固定在支架上, 在安装板上设置旋转轴, 轴承, 平面轴承, 承 重螺帽使其固定在安装板上, 由传动轴, 减速器, 电动机组成动力系统用 380V 三相电源来给予动力支持使其旋转, 再由电控设备来控制风扇旋转系统的旋转 角度, 位置, 和限位等。 旋转安装方式解决了现有牛场中如现有技术部分所述 的普遍存在的困扰和难题, 在节约能源的大前提下发挥出风扇的最大效率, 通 过一个旋转系统可以在定好的时间内进行旋转, 这样可以轮流吹在牛的身体两 侧, 达到全身降温的左右, 可以为牛场至少节约一半数量的风扇, 降低了大量 成本。 风扇的电控系统为整个系统提供强有力的保障, 市面上的风机普遍不存 在热继电器, 这样是很危险的, 一旦电机过热热继电器就会启动并切断电源。 限位开关和机械挡块为风扇的转向提供了双保险。 可以任意调节角度的支架也 可以适应不同客户不同场所的需求, 每个方向的送风时间也可以由客户自由调 节, 使整个系统变得灵活起来, 适用于多个场所。 本实施例中的电源为三相 8 级, 电压: 380V, 频率: 50HZ, 额定功率: 400W, 输出功率: 300W, 电流: 1.1A, 转速: 720RPM, 风量: 25000m3 /h, 风扇 180° 旋转, 中空塑料的框架结 构长为 1140mm至 2m, 宽为 856.87mm至 2m。
以上所述的实施例只是本发明具体实施方式中的一种, 任何利用本发 技术手段而制造出的产品均属于侵权行为。

Claims

权 利 要 求 书
1. 一种有关畜牧业使用的风扇, 包括风机和支架, 电源连接电控箱及电动机, 其特征在于所述的支架由旋转系统和动力系统及电控系统组成, 所述的旋转 系统电动机 (1 ) 轴上设有斜齿 -涡轮减速机 (2 ), 减速机 (2 ) 上设有传动 轴 (3 )及电控箱(9), 传动轴上设有若干个旋转轴(4), 若干个旋转轴(4) 的左右两边的传动轴上等距离设有第一联轴器 (5 ) 和第二联轴器 (6), 旋 转轴 (4 ) 内腔设有轴承 (7), 并与平面轴承 (8 ) 连接, 旋转轴 (4 ) 的外 部设有齿轮, 通过齿轮传动涡轮, 在旋转轴的平面轴承 (8 ) 的下部设有风 扇角度调节支架 (10 ), 支架上设有风机壳体 (11 ), 风机壳体由滚塑成型的 塑料制成正方形的中空框架结构, 所述的正方形框架结构中间设有沿风扇扇 片转动的圆形内腔, 在正方形框架结构四个角的内框表面设有二十个孔, 在 正方形框架结构四个角的内框底部设有十六个孔, 内框底部的十六个孔与内 框表面的十六个孔相对应, 内框表面中间设有的四个孔由四根支撑管固定风 扇电机壳体, 风扇电机轴上设有扇叶固定架, 扇叶固定架上装有扇叶, 在扇 叶的上面和下面等距离设有网罩构成,所述的电源为三相 8级, 电压: 380V, 频率: 50HZ , 额定功率: 400W, 输出功率: 300W, 电流: 1. 1A, 转速: 720RPM, 风量: 25000mVh, 风扇 180 ° 旋转, 中空塑料的框架结构长为 1140匪至 2m, 宽为 856. 87mm至 2m。
2. 如权利要求 1所述的一种有关畜牧业使用的风扇, 其特征在于四个电机支撑 架用 8. 8级 M10螺帽锁固定在滚塑成型的中空塑料框架上, 用 M8铆钉将扇 叶和扇叶支架及法兰铆接,将风扇的法兰放在电机轴上,并用销钉螺帽拧紧, 将保护罩固定在电机支撑架上。
3. 如权利要求 1所述的一种有关畜牧业使用的风扇, 其特征在于旋转系统中传 动轴设有第一联轴器和第二联轴器, 在第一联轴器和第二联轴器之间设有旋 转轴, 旋转轴内腔设有轴承, 底部设平面轴承和安装板及承重螺帽。
4. 如权利要求 1所述的一种有关畜牧业使用的风扇, 其特征在于所述的动力系 统由联轴器和传动轴、 斜齿-涡轮蜗杆减速机和旋转系统电机构成。
5. 如权利要求 1所述的一种有关畜牧业使用的风扇, 其特征在于所述的电控系 统包括接触器、 时间继电器、 热继电器、 断路器、 保险丝限位开关、 按钮、 开关、 指示灯组成。
6. 一种有关畜牧业使用的风扇的生产方法, 其特征在于风机壳体采用滚塑成型 的方法包括以下步骤:
1) 采用线性低密度聚乙烯运用滚塑工艺一次成型, 先将原料颗粒倒入混料 机, 然后加入各种功能性添加剂并用高速混料机, 均匀混合, 以填料量 65%为基准, 温度上升至 54摄氏度时停止混合.
2) 将混完成后的颗粒进行造粒, 将造粒完成后的颗粒研磨到 50 mesh; 将研 磨后的粉料分类并封口,避免粉料受潮, 采用三臂五工位的滚塑机, 燃烧 器功率 44万卡;
3) 将模具以 30 ° 的垂直夹角, 用 U型夹将其固定在滚塑机转盘上, 投料并 进加热室加热; 4) 加热时间 22分钟, 加热温度 260摄氏度, 冷却时间 15分钟, 主副轴之 比为 7 : 8, 采用循环风机加热, 循环风机功率 4KW, 在加热和冷却过程中 每 5分钟正转反转调整一次;
5) 模具表面涂覆有永久性脱模剂 teflon, 使得产品表面富有光泽;
6) 产品出模后用修边刀修理少量毛边, 并清理模具垃圾;
7) 将产品放置在一块平整的橡胶垫上, 使其自然收縮 48小时, 48小时候即 可送至装配车间装配。
7. 如权利要求 6所述的一种有关畜牧业使用的风扇的生产方法, 其特征在于添 加剂为抗氧化剂、 防静电剂、 阻燃剂、 流动促进剂、 冲击性改善剂、 硅粉或 环保色素的一种或多种复合。
8. 如权利要求 6所述的一种有关畜牧业使用的风扇的生产方法, 其特征在于风 机壳体 36个承重孔采用注塑和滚塑相结合的工艺, 36个孔设有主加强肋和 辅助加强肋,主加强肋是对产品在脱模情况下,使用大斜度的两侧销钉对插, 一个销钉一个锁扣, 冷却完毕后顺利出模, 辅助加强肋是通过注塑, 在滚塑 产品中放置注塑件使风扇中空部分在安装时有了强有力支撑, 达到不变形不 移位的要求。
PCT/CN2012/075256 2012-05-09 2012-05-09 一种有关畜牧业使用的风扇及其生产方法 WO2013166674A1 (zh)

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CN201757090U (zh) * 2010-08-25 2011-03-09 青岛易高空调有限公司 外壳一次成型的排风机
CN102644612A (zh) * 2012-05-02 2012-08-22 上海特瑞机械设备有限公司 一种有关畜牧业使用的风扇及其生产方法

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GB118546A (en) * 1918-01-15 1918-09-05 British Thomson Houston Co Ltd Improvements in and relating to Electric Fans.
CN2034631U (zh) * 1987-03-19 1989-03-22 重庆电扇厂 全方位摇头吊风扇
CN101693399A (zh) * 2009-09-28 2010-04-14 徐春富 一种两种不同树脂复合滚塑成型的方法
CN201757090U (zh) * 2010-08-25 2011-03-09 青岛易高空调有限公司 外壳一次成型的排风机
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