CN2178304Y

CN2178304Y - Electric power hydraulic thruster

Info

Publication number: CN2178304Y
Application number: CN 93229217
Authority: CN
Inventors: 王振兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-11
Filing date: 1993-09-11
Publication date: 1994-09-28
Anticipated expiration: 2003-09-11

Abstract

The utility model provides an electric power hydraulic thruster, belonging to a driving device. The electric power hydraulic thruster is mainly characterized in that an electrical machine 1 and a centrifugal pump casing 2 are fixedly connected; an electrical machine shaft 20 which is on the electrical machine 1 is connected with an impeller wheel 3; the centrifugal pump casing 2 and a thruster casing 4 are fixedly connected; the bottom of the thruster casing 4 and a base 9 are fixedly connected; the base 9 and a base ear 14 are connected; a cylinder body 5 is arranged in the thruster casing 4. A piston 6 which is connected with one end of a piston rod 7 is installed in the cylinder body 5, and the other end of the piston rod 7 is at the outer part of the centrifugal pump casing 2. The electric power hydraulic thruster has the advantages of adjustable working travel, automatic compensation, adjustable action time, agility, reliability, compact structure, convenient maintenance and no phenomenon of oil leakage.

Description

Electric power hydraulic thruster

The utility model belongs to a kind of drive unit, particularly relates to a kind of electro hydraulicthruster.

At present, be used for the driving element on break and other mechanical device, adopt series such as YT1, MYT2 and MYT3 more.Electro hydraulicthruster YT1 series dimensioned required precision height, manufacturing process performance are poor, and actuation time is long, and can not regulate, stroke is little, can not compensate automatically again, MYT2, MYT3 series structure complexity, maintenance difficult, stroke can not compensate automatically, are prone to oil leakage phenomenon.

The purpose of this utility model provides a kind of electro hydraulicthruster with use flexibility and reliability of multiple function.

Technical solution of the present utility model is: a kind of electro hydraulicthruster, it is characterized in that: motor 1 is fixedly connected with centrifugal pump shell 2, motor shaft 20 on the motor 1 joins with impeller 3, centrifugal pump shell 2 is fixedly connected with pusher housing 4, pusher housing 4 bottoms and base 9 are fixedly connected, and base 9 joins with base ear 14, is provided with cylinder body 5 in the pusher housing 4, the piston 6 that joins with piston rod 7 one ends is housed in the cylinder body 5, and the other end of piston rod 7 places the outside of centrifugal pump shell 2.

Also be provided with piston sleeve 16 between described cylinder body 5 and the piston 6.

In the described cylinder body 5, piston sleeve 16 bottoms also are provided with regulator 15.

Described piston 6 is provided with valve 13.

Described piston sleeve 16 bottoms also are provided with valve 17.

Described regulator 15 by chassis 21, and the governor cap 22 that joins of chassis 21, place axle 23 between chassis 21 and the governor cap 22, be enclosed within the outer spring 24 of axle 23 and place the adjustment disk 25 on the chassis 21 to form.

It is adjustable that the utility model compared with prior art has working stroke, and automatically compensation, actuation time is adjustable, compact structure, little, the no oil leakage phenomenon of volume, advantage such as easy to maintenance.

Fig. 1 is the plan view of general assembly drawing of the present utility model;

Fig. 2 is the left view of the utility model general assembly drawing shown in Figure 1;

Fig. 3 is that the utility model shown in Figure 1 is used in the erection drawing on the break;

Fig. 4 is the regulator erection drawing in the utility model shown in Figure 1;

Fig. 5 is the piston sleeve in the utility model shown in Figure 1 and the erection drawing of valve;

Fig. 6 is the piston in the utility model shown in Figure 1 and the erection drawing of valve.

Below in conjunction with drawings and Examples the utility model is described further: a kind of electro hydraulicthruster, it is characterized in that: motor 1 is fixedly connected with centrifugal pump shell 2, motor shaft 20 on the motor 1 joins with impeller 3, centrifugal pump shell 2 is fixedly connected with pusher housing 4, pusher housing 4 bottoms and base 9 are fixedly connected, base 9 joins with base ear 14, be provided with cylinder body 5 in the pusher housing 4, the piston 6 that joins with piston rod 7 one ends is housed in the cylinder body 5, and the other end of piston rod 7 places the outside of centrifugal pump shell 2.

Described piston 6 is provided with valve 13.

Described piston sleeve 16 bottoms also are provided with valve 17.

This reduce cost, reach manufacturing, maintenance, easy for installation, select for use vertical three-phase AC asynchronous motor as power source.Main parts size: centrifugal pump shell 2, pusher housing 4, base 9, impeller 3, piston sleeve 16, piston 6, chassis 21 and governor cap 22 be made cylinder iron all.As shown in Figure 1, available coupling 31 connects between impeller 3 and the motor shaft 20, also can directly connect.In order to reach the effect of good seal, between motor 1 and the centrifugal pump shell 2, between centrifugal pump shell 2 and the pusher housing 4, be added with sealing

gasket

32,33,34 respectively between pusher housing 4 and the base 9.

Be added with U RunddichtringO 35 between piston rod 7 and the centrifugal pump shell 2.Be added with O RunddichtringO 30 between piston sleeve 16 and the piston 6.As Fig. 6, shown in Figure 5, the structure of valve 13 and valve 17 is identical, has dug axial elongated slot on its valve rod, is loaded on the respective aperture place of piston 6 and piston sleeve 16 respectively with circlip for shaft 29 and 28, and adds rubber cushion 38,27, makes valve 13 and valve 17 can move axially certain distance.With screw 26 chassis 21 is fixedly connected with governor cap 22.

Its working principle is: as shown in Figure 3: join with break 18 respectively after the base ear 14 of electro hydraulicthruster, an end of piston rod 7 and joint 8 join.Before using as shown in Figure 2, oil filler bolt 36 is screwed off, add machinery oil to oily window 37 places and get final product, promote piston rod 7 up and down for several times, so that discharge intracavity gas.

As shown in Figure 1: after the energising, motor 1 impeller 3 high speed rotating, make impeller 3 bottoms, the bottom that comprises pusher housing 4 produces oil pressure, pressure oil is through cylinder body 5 bottoms, promoting piston sleeve 16 by regulator 15 axial holes moves up, because 7 on-loads of piston rod, piston 6 lower chamber 39 oil pressure are increased, cause valve 17, valve 13 to close, make piston sleeve 16 and piston 6 and piston rod 7 form the integral body of hydraulic interlocking, and move up simultaneously, the thrust of break 18 is opened in generation, makes Brake drum 19 rotations.At this moment, the stroke of this electro hydraulicthruster only depends on the stroke of piston sleeve 16, and is positioned location independent in the piston sleeve 16 with piston 6 and piston rod 7.If outage, under the effect of the spring force of break 18, piston rod 7, piston 6 and piston sleeve 16 move down simultaneously, when valve 17 contacts with governor cap 22, open valve 17, the high pressure oil of piston 6 lower chamber 39 is released, because action of pressure valve 13 is also opened, controlled inertia impact, piston 6 is divided into two-part again with piston sleeve 16, and arbitrary position can both proper functioning in piston sleeve 16 to make piston 6.Thereby reach the purpose of automatic compensation stroke.Regulate actuation time as needs, adjustment disk on the regulator 15 25 is rotated a certain angle, hole on the adjustment disk 25 is overlapped with bore portion on the chassis 21, reduce the flow of pressure oil, can increase actuation time, if above two hole intersection increase, promptly flow increases, cause shorten actuation time, the purpose that the time that reaches is regulated.

Claims

1, a kind of electro hydraulicthruster, it is characterized in that: motor [1] is fixedly connected with centrifugal pump shell [2], motor shaft [20] on the motor [1] joins with impeller [3], centrifugal pump shell [2] is fixedly connected with pusher housing [4], pusher housing [4] bottom is fixedly connected with base [9], base [9] joins with base ear [14], be provided with cylinder body [5] in the pusher housing [4], the piston [6] that joins with piston rod [7] one ends is housed in the cylinder body [5], and the other end of piston rod [7] places the outside of centrifugal pump shell [2].

2, electro hydraulicthruster according to claim 1 is characterized in that: also be provided with piston sleeve ［ 16 ］ between described cylinder body ［ 5 ］ and the piston ［ 6 ］.

3, electro hydraulicthruster according to claim 1 and 2 is characterized in that: described cylinder body ［ 5 ］ is interior, piston sleeve ［ 16 ］ bottom also is provided with regulator ［ 15 ］.

4, electro hydraulicthruster according to claim 1 is characterized in that: described piston ［ 6 ］ is provided with valve ［ 13 ］.

5, electro hydraulicthruster according to claim 2 is characterized in that: described piston sleeve ［ 16 ］ bottom also is provided with valve ［ 17 ］.

6, electro hydraulicthruster according to claim 3 is characterized in that: described regulator ［ 15 ］ by chassis ［ 21 ］, and chassis ［ 21 ］ governor cap ［ 22 ］ of joining, place axle ［ 23 ］ between chassis ［ 21 ］ and the governor cap ［ 22 ］, be enclosed within the outer spring ［ 24 ］ of axle ［ 23 ］ and place the adjustment disk ［ 25 ］ on the chassis ［ 21 ］ to form.