Production method for integral water pump casing
A production method and integrated technology, which can be applied to non-variable-capacity pumps, parts of pumping devices for elastic fluids, and parts of variable-capacity pumps, etc. The problems such as the thickness and thickness of the pressure are solved, and the effect of simple structure, material saving of pump casing and simple structure of pump casing can be achieved.
Active Publication Date: 2021-06-08
台州义民电机股份有限公司
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Problems solved by technology
[0003] The non-metallic casing formed by mechanical assembly has the following defects and deficiencies: (1) The pump casing is a pressure-bearing part. In order to prevent liquid leakage, the two halves of the pump casing must be tightened by dense bolts, so the structure is cumbersome ;(2) Since the bolts are used to tighten, the joint surface must have a certain rigidity, so the connecting flange surface of the two halves of the pump casing must be much thicker than the pressure resistance thickness of the casing itself, and must be much larger than the size of the pump body; ( 3) Due to the requirements of corrosion resistance, the connecting bolts are all made of stainless steel. A large number of stainless steel bolts and larger pump bodies lead to higher manufacturing costs; (4) Now users require the pump to be as light as possible, easy to handle, and mechanically assembled pump body A large number of bolts are used to connect the joint surface, so that the weight of the shell cannot meet the user's requirements that the lighter the better
Method used
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Embodiment 1
[0039] Embodiment 1 (see Figure 1-5 ):
[0040] The hot-melt welding equipment used in the present embodiment comprises a frame 8, an upper mounting plate 9, a lower mounting plate 10 and an electric heating plate 7; the upper and lower parts of the frame 8 are respectively provided with an A cylinder 11 and a B cylinder 12 , a pair of guide rods 13 are vertically installed on the frame 8, and a pair of slide rail beams 14 are installed horizontally on the frame 8; the upper mounting plate 9 and the lower mounting plate 10 form a sliding fit with the guide rods 13 The piston rod of the A cylinder 11 is connected with the upper mounting plate 9, which can drive the upper mounting plate 9 to move up and down along the guide rod 13; the piston rod of the B cylinder 12 is connected with the lower mounting plate 10, and can drive the lower mounting plate 10 Move up and down along the guide rod 13; the upper mounting plate 9 and the lower mounting plate 10 are respectively fixed w...
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Abstract
The invention discloses a production method for an integral water pump casing. According to the method, a half casing A and a half casing B are welded to form the integral water pump casing; the method comprises the following steps of I, producing the half casing A and the half casing B through an injection molding or compression molding technology; II, placing and fixing the half casing A and the half casing B in a half casing mold A and a half casing mold B correspondingly; III, heating the welding edge A on the half casing A and the welding edge B on the half casing B to a molten state; and IV, closing the half casing mold A and the half casing mold B, so that the welding edge A and the welding edge B are combined, and obtaining the integral water pump casing after cooling. The production method provided by the invention is easy to implement, and the produced water pump casing is simple in structure, high in reliability, low in cost and light in weight.
Description
technical field [0001] The invention relates to water pump production technology, in particular to a production method of an integral water pump casing. Background technique [0002] The pump casing of the water pump is also called the pump body, the volute, and the shell, and it is made of metal and non-metal. The metal material is mostly cast or stamped and welded; for the convenience of demoulding, the non-metallic pump casing is mostly plastic injection or molded into two halves, and then mechanically assembled, that is, the two halves of the casing are tightened by bolts to form a complete a pump casing. [0003] The non-metallic casing formed by mechanical assembly has the following defects and deficiencies: (1) The pump casing is a pressure-bearing part. In order to prevent liquid leakage, the two halves of the pump casing must be tightened by dense bolts, so the structure is cumbersome ;(2) Since the bolts are used to tighten, the joint surface must have a certain ...
Claims
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IPC IPC(8): B29C65/02F04B53/16F04D29/42
CPCB29C65/02F04D29/426F04B53/16
Inventor 杨性楷杨天杰李道芳
Owner 台州义民电机股份有限公司
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