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Strong self-suction sewage pump

A self-priming sewage pump and pump shaft technology, applied in the direction of pumps, driving pumps, pump devices, etc., can solve problems such as easy damage

Inactive Publication Date: 2003-07-16
营口宝顺泵业机电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the two major shortcomings of existing self-priming centrifugal pumps, the present invention proposes to install a friction plate clutch device between the suction device and the pump shaft, fundamentally overcoming the fact that the working effect of the original gear clutch device is limited by the speed and easy to be damaged. Disadvantages: starting from improving the overall structure of the existing suction device to improve the suction efficiency and water absorption height of the self-priming centrifugal pump

Method used

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Examples

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Effect test

example 1

[0015] Example 1. The self-priming centrifugal pump that is now on the market, its suction device is shown in Figure 1, and it is divided into two spaces by the base 1.1, the top cover 1.2, and the space between the top cover and the base that are combined. The actuating body 1.3 and its surrounding tensile sealing gasket 1.4 are formed; the base 1.1 is provided with a one-way air intake valve 1.12 at the mouth of the centrifugal pump cavity, and the actuating body 1.3 is provided with a one-way air outlet valve 1.32, The top cover 1.2 is provided with a one-way air outlet valve 1.21, and the actuating body 1.3 is reciprocated by pushing and pulling the connecting rod 1.5, so as to realize the purpose of air inhalation. But it is not difficult to see that: (1) because the actuating body, the base, and the top cover are all metal, a gap has to be reserved for avoiding the hard collision between the actuating body and the two, so the invalid space is relatively large; ( 2) The c...

example 2

[0016] Example 2: the air suction device that the present invention has implemented (as figure 2 As shown), since the device has made three improvements as the above-mentioned design scheme, its advantages are as follows: 1. The space between the top cover 2.1 and the actuator 2.4 is used as the suction chamber, eliminating the need for the connecting rod 2.3 and sealing Effective space V when rubber pad 2.5 is convex 吸 Occupation is conducive to increasing V 吸 , and at the same time help to prevent air leakage; 2. The improved actuator 2.4 is composed of the skeleton 2.42 and the covering rubber 2.41, so the common wing can not only be used as a seal but also has a greater extension length, which is convenient Appropriately increase the stroke of the actuating body 2.4, so that the actuating body 2.4 can be as close as possible to the top cover 2.1, so that V 吸 increase and make V 无效 Reduced to close to zero, the comprehensive suction efficiency of the suction device can b...

example 3

[0017] Example 3, the structure of the electromagnetically controlled clutch device of the present invention is shown in FIG. 3 . When the centrifugal pump is started but the electromagnet circuit is not closed, the pump shaft 3.1 rotates, and the gear sleeve 3.2 keyed on the pump shaft 3.1 rotates through the flat key 3.12, and the inner edge gear teeth are fitted into the gear sleeve grooves The inner friction plate 3.21 rotates synchronously with the pump shaft 3.1; the gear eccentric sleeve 3.3 and its cylindrical inner wall surface form a slidably fitted outer friction plate 3.32, and the left armature 3.41 slidingly fits with the cylindrical inner wall due to the isolation ball The isolation effect of bearing 3.33,3.34 does not rotate, and eccentric post 3.35 and connecting rod 3.38 do not move, so suction device does not work. Only when the centrifugal pump is started and the electromagnet circuit is closed at the same time, the electromagnet 3.40 generates a magnetic f...

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Abstract

A strong self-suction sewage pump is composed of centrifugal pump, air sucking unit, and clutch unit between them. Said clutch unit is composed of the mechanical drive mechanism and electromagnetic (or hydraulic) control mechanism. Said mechanical drive mechanism consists of the setting eccentric sleeve and the tooth driven sleeve. The electromagnetic control mechanism comprises armature and electromagnet.

Description

Technical field: [0001] The invention relates to a self-priming centrifugal pump composed of a centrifugal pump and a suction device, in particular to a clutch mechanism between the suction device and the pump shaft. Background technique: [0002] The self-priming centrifugal pump composed of a centrifugal pump and a suction device was first created by the British Selwood Pump Company. Since it was put into the market, it has been very popular with users because it can be started directly without pre-filling water before starting. Moreover, the pump with this structure can be used in the fields of bridges, tunnels, mines and fire protection, and the market is very broad. The self-priming centrifugal pump has a very compact structure because the centrifugal pump and the suction device are driven by the same pump shaft. However, since there is no clutch mechanism between the suction device and the pump shaft, the suction device is still running continuously after the suction ...

Claims

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Application Information

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IPC IPC(8): F04D9/02F04D13/02
Inventor 郭宝权
Owner 营口宝顺泵业机电有限公司
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