CN2315337Y

CN2315337Y - Improved sand pump

Info

Publication number: CN2315337Y
Application number: CN 97249775
Authority: CN
Inventors: 林万里; 朱洪阳; 刘旭明; 江进国; 吴云上; 胡井; 张国芳; 曹春阳; 姚庆元; 何志铭
Original assignee: JIANGXI NON-FERROUS GEOLOGY MACHINERY FACTORY
Current assignee: JIANGXI NON-FERROUS GEOLOGY MACHINERY FACTORY
Priority date: 1997-11-28
Filing date: 1997-11-28
Publication date: 1999-04-21
Anticipated expiration: 2007-11-28

Abstract

The utility model relates to a sand pump, especially equipment used for reverse circulation deslagging in the hole forming construction of a pile foundation hole in the rock and soil foundation engineering. Belt pulleys of a belt driving group are pivoted on a main shaft, and a friction clutch and a lever operation component thereof are connected between the main shaft and the belt pulleys. A sealing component is mainly composed of two sealing rings and two floating and sealing rings between the external edge of the right end head of an impeller and the sealing rings. Thus, the utility model has the advantages of reliable sealing, stable operation and convenient maintenance and operation.

Description

Improved gravel pump

The utility model relates to a kind of gravel pump, is particularly useful for the equipment of anti-circulation deslagging in the drilling construction of ground foundation engineering pile foundation hole.

At present, adopt the packing seal assembly between the impeller right-hand member of existing gravel pump and the pump housing, in the mud medium of impurity such as sand gravel, it is very fast to wear and tear, and working life is short, directly drives main shaft by motor again, rotate not steady, maintenance and operation are also convenient, and the pump housing and bearing support are supported on the pedestal respectively in addition, to take erection space also big, and the while cost is also high.

In view of this, the purpose of this utility model provides a kind of improved gravel pump, can make between the impeller right-hand member and the pump housing sealing reliable, and wheel rotation is steady, also can be when motor rotates the stopping time wheel rotation.

The purpose of this utility model is achieved in that it mainly is to comprise that a kind of improved gravel pump comprises pump cover, the pump housing, impeller, black box, main shaft, left shaft holder and right bearing seat, it is characterized in that: the belt pulley of the belt drive component that is pivoted on main shaft connects a friction clutch and lever control part thereof again between main shaft and belt pulley; Black box mainly is to form with two seal rings and two floating sealing rings between impeller right-hand member head outer rim and seal ring; In addition, outside pump housing right side, be provided with an overhanging shell and its internal fixation and connect left shaft holder.

Above-mentioned floating sealing ring is to be forged into by powdered metallurgical material.

Owing to adopt such scheme: sealing is reliable, the moving commentaries on classics steadily, and maintenance and operation are also convenient.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1, the utility model exemplary embodiments structural representation;

Fig. 2, the utility model exemplary embodiments friction clutch schematic representation;

Fig. 3, the floating envelope of the utility model exemplary embodiments black box schematic representation.

Among the figure:

1, pump cover 2, the pump housing 21, overhanging shell 3, impeller 4, black box

5, main shaft 6, left shaft holder 7, belt drive component 71, belt pulley 8, friction clutch

9, lever control part 10, right bearing seat 41, right supporting ring 42, floating sealing ring

43, seal ring 44, left supporting ring 81, gear 82, lever supporting

83, lever 84, friction top 85, interior friction plate 86, outside friction disc

87, lining dish 88, drive plate 89, gear ring

Present embodiment comprises pump cover 1, the pump housing 2, impeller 3, black box 4, main shaft 5, left shaft holder 6, belt drive component 7, friction clutch 8, lever control part 9 and right bearing seat 10, as shown in Figure 1, wherein: the left side of the pump housing 2 connects a pump cover 1 (having suction pipe), impeller 3 is in the pump housing 2, and fixedly connected main shaft 5 of its right-hand member and the pump housing 2 right-hand member holes and impeller 3 right-hand members radially are provided with black box 4, to keep the sealing of the pump housing 2 right sides; Be provided with an overhanging shell 21 outside the right side of the pump housing 2, and connect a left shaft holder 6 at overhanging shell 21 internal fixation, main shaft 5 is bearing in the left shaft holder 6 near left end, and main shaft 5 is bearing in the right bearing seat 10 with right-hand member.

Friction clutch 8 is bearing in a left side, right bearing seat 6, on the main shaft 5 between 10, this friction clutch 8 is by gear 81, lever supporting 82, lever 83, compression plate 84, friction plate 85 in the polylith, polylith outside friction disc 86, lining dish 87, drive plate 88 and gear ring 89 constitute, its middle gear 81 is fixedly connected on the main shaft 5, interior friction plate 85 inner edge compartment of terrains are connected on the gear 81, outside friction disc 86 outer rims are connected on the gear ring 89 at intervals, this gear ring 89 is connected with drive plate 88, this drive plate 88 is articulated on the main shaft 5 and (is provided with bearing between the two) again, push away or tie-bar bar 83 can on gear 81, make axially movable lever supporting 82, make between compression plate 84 and the lining dish 87 separately in,

outside friction disc

85,86 contacts or separation can realize that main shaft 5 and drive plate 88 (being connected belt pulley 71 right-hand members) connect or throw off.

Belt drive component 7 is articulated on the main shaft 5 with its driven pulley 71, drives belt drive component 7 with the motor (not shown), drives main shaft 5, impeller 3 rotations again through friction clutch 8.

Black box 4 is made up of right supporting ring 41, two floating sealing rings 42, two seal rings 43 and left supporting ring 44, wherein floating sealing ring 42 floating grounds are between impeller 3 right-hand member head outer rims and the seal ring 43, this floating sealing ring 42 has a lot of holes, can hold lubricant oil (as: the powdered metallurgical material forging forms), have good abrasion resistance.

The improved gravel pump of the utility model has following performance in sum:

1) using rotating speed is 400～500 rev/mins, pump duty 800～1200M ³/ h.

2) pump housing passage overcurrent diameter of phi 300mm.

3) belt transmission maximum shaft power 138KW.

4) adopt the floating seal assembly to carry out a water shutoff, pump is inhaled negative pressure of vacuum 8800Pa.

Claims

1, a kind of improved gravel pump comprises pump cover (1), the pump housing (2), impeller (3), black box (4), main shaft (5), left shaft holder (6) and right bearing seat (10), it is characterized in that: the belt pulley (71) of a belt drive component (7) that are pivoted on main shaft (5) connects a friction clutch (8) and lever control part (9) thereof again between main shaft (5) and belt pulley (71); Black box (4) mainly is to form with two seal rings (43) and two floating sealing rings (42) between impeller (3) right-hand member head outer rim and seal ring (43); In addition, outside the pump housing (2) right side, be provided with an overhanging shell (21) and its internal fixation and connect left shaft holder (6).

2, by the described improved gravel pump of claim 1, it is characterized in that: above-mentioned floating sealing ring (42) is to be forged into by powdered metallurgical material.