A strong displacement pump for soft ground treatment

Abstract

The invention relates to a strong displacement pump for treating soft ground, which comprises a machine base, a motor arranged on the machine base, a pump casing and an impeller arranged in the pump casing, the impeller is coaxially fixed with a pump shaft, and the pump The shaft and the output shaft of the motor are respectively coaxially provided with a fixed plate 1 and a fixed plate 2. The fixed plate 1 and the fixed plate 2 are respectively provided with several groups of limit holes. Nylon rods are inserted into the positioning holes, and the nylon rods are arranged parallel to the pump shaft, and a limiting member for limiting the nylon rods is also arranged in the limiting holes. The invention has the advantages that the motor is disconnected from the pump shaft when it is blocked, so that the motor is not damaged.

Description

technical field [0001] The invention relates to the technical field of soft ground treatment, in particular to a strong discharge pump for soft ground treatment. Background technique [0002] At present, if the foundation is not strong enough before the construction, in order to prevent accidents such as the instability of the building caused by the subsidence and cracking of the foundation after the construction, it is necessary to deal with the soft foundation to make the settlement become strong enough to improve the consolidation and stability of the soft foundation According to the design requirements, this process is called soft foundation treatment. [0003] Existing authorized announcement number is that the Chinese patent of CN204691673U discloses a kind of soft foundation mud protection rotary drilling, comprises rotary drilling rig, steel casing and mud circulation system, and described mast top is handed over guide plate and pulley block, and described The top o...

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Problems solved by technology

[0005] The above-mentioned existing technical solutions have the following defects: the above-mentioned pump shaft is coaxially connected with the output shaft of the motor through a coupling, so that the motor drives the pump shaft to drive the impeller to rotate to realize the delivery work of the mud pump; and in the working environment, Because the mud pump discharges the mud in the soft foundation, during the process of conveying the mud, there is a great probability that the stones in the mud will be sucked into the pump casing, and the stones will easily block the impeller, so that the pump casing will Blockage phenomenon; when the pump casing is blocked, the motor is still working, driving the pump shaft to rotate, resulting in increased load on the motor, which is likely to cause damage to the motor

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