CN201747594U

CN201747594U - Gear pump

Info

Publication number: CN201747594U
Application number: CN2010202764680U
Authority: CN
Inventors: 勾京生
Original assignee: BEIJING VP Co Ltd
Current assignee: BEIJING VP Co Ltd
Priority date: 2010-07-30
Filing date: 2010-07-30
Publication date: 2011-02-16
Anticipated expiration: 2020-07-30

Abstract

The utility model provides a gear pump which comprises a driving shaft, a bearing box, a bracket, a pump body, a driving wheel, a driven wheel, a quadrant link, a pump head and a driven shaft, wherein the bearing box is mounted at the back part of the bracket; the front end of the bracket is connected with the pump body; the pump head is mounted at the front end of the pump body; the driving wheel, the driven wheel, the quadrant link and the driven shaft are all mounted in the pump body; the driven shaft is fixed on the pump head; the driven wheel is sheathed on the driven shaft; the driving shaft penetrates through the bearing box, the bracket and the pump body; the driving wheel is sheathed at the front end of the driving shaft; the pump body is further provided with an outlet and an inlet; the radius of the driven wheel is smaller than that of the driving wheel; the driven wheel is sheathed inside the driving wheel; the driving wheel and the driven wheel are internally meshed at the outlet of the pump body; and at the relative position where the driving wheel and the driven wheel are meshed, the quadrant link is further mounted between the driving wheel and the driven wheel. The gear pump has the advantages of less flow passage components, less quick-wear parts, on-line detachability, small maintenance load and small material consumption.

Description

Gear pump

Technical field

The utility model belongs to the industrial pump technical field, particularly a kind of gear pump.

Background technique

The gear pump flow passage components of Shi Yonging are many in the market, damage easily in the using process, just dismantle inconvenience during maintenance, the maintenance cost height, and also material is lossless big in use.

Summary of the invention

The utility model main purpose is in order to address the above problem, provide that a kind of flow passage components are few, few easy workout part, can onlinely dismantle, amount of maintenance is little, and the little gear pump of material loss.

In order to achieve the above object, the technological scheme that the utility model provides is: a kind of gear pump, and it comprises driving shaft, bearing housing, support, the pump housing, driving wheel, follower, swing link, pump head and driven shaft; Bearing housing is installed in the rear portion of support, and the front end of support is connected with the pump housing; Pump head is installed in the front end of the pump housing; Driving wheel, follower, swing link and driven shaft are installed in the pump housing; Driven shaft is fixed on the pump head; Follower is placed on the driven shaft; Driving shaft runs through bearing housing, support and the pump housing; Driving wheel is placed in the driving shaft front end; Also have export and import on the pump housing; The radius of follower is less than the radius of driving wheel; Follower places driving wheel inside, and driving wheel and follower mesh in the outlet port of the pump housing; The relative position of driving wheel and follower engagement place also is equipped with swing link between driving wheel and the follower;

This gear pump also comprises rack sleeve; Rack sleeve is installed on the front end of support, is placed in the driving shaft outside;

Rack sleeve is that wear-resisting, high temperature material is made;

This gear pump also comprises driven axle sleeve; Driven axle sleeve is installed between driven shaft and the follower;

Driven axle sleeve is that wear-resisting, high temperature material is made;

This gear pump also comprises lock nut and lock washer; Lock nut is installed in the joint at driving shaft and bearing housing rear portion by lock washer.

When the utility model used, material entered the pump housing from inlet, and driving wheel rotates thereby driving shaft rotates drive, because engagement in driving wheel and the follower, the rotation drive follower of driving wheel rotates; Driving wheel is gone into material web between driving wheel and the follower, material has the gap of driving wheel and follower to continue motion respectively through the swing link place, when driving wheel and follower forward pump housing outlet port to, engagement in driving wheel and the follower, thus material is extruded from the outlet port.

Because the utility model also is equipped with rack sleeve, rack sleeve plays the effect of sealing, in order to avoid the material in the pump housing leaks.Rear portion at support also is equipped with bearing housing, convenient for maintaining and replacing sealing.

Description of drawings:

Fig. 1: side structure of the present utility model cuts open figure;

Fig. 2: pump body structure sectional view of the present utility model.

Embodiment:

As shown in Figure 1: gear pump, it comprises driving shaft 1, bearing housing 2, support 3, the pump housing 4, driving wheel 5, follower 6, swing link 7, pump head 8 and driven shaft 9; Bearing housing 2 is installed in the rear portion of support 3, and the front end of support 3 is connected with the pump housing 4; Pump head 8 is installed in the front end of the pump housing 4; Driving wheel 5, follower 6, swing link 7 and driven shaft 9 are installed in the pump housing 4; Driven shaft 9 is fixed on the pump head 8; Follower 6 is placed on the driven shaft 9; Driving shaft 1 runs through bearing housing 2, support 3 and the pump housing 4; Driving wheel 5 is placed in driving shaft 1 front end.

As shown in Figure 2, also have outlet 10 and import 11 on the pump housing 4; The radius of follower 6 is less than the radius of driving wheel 5; Follower 6 places driving wheel 5 inside, and driving wheel 5 meshes in outlet 10 places of the pump housing 4 with follower 6; The relative position of driving wheel 5 and follower 6 engagement places also is equipped with swing link 7 between driving wheel 5 and the follower 6;

This gear pump also comprises rack sleeve 12; Rack sleeve 12 is installed on the front end of support 3, is placed in driving shaft 1 outside; Present embodiment rack sleeve 12 material therefors are that 35 chrome molybdenums add Ni-based cobalt base alloy, be applicable to more wear-resisting, high temperature resistant, hardness, corrosion are required under the higher working condition.

This gear pump also comprises driven axle sleeve 13; Driven axle sleeve 13 is installed between driven shaft 9 and the follower 6; Driven axle sleeve 13 material therefors of present embodiment are that 35 chrome molybdenums add Ni-based cobalt base alloy, be applicable to more wear-resisting, high temperature resistant, hardness, corrosion are required under the higher working condition.

This gear pump also comprises lock nut 14 and lock washer 15; Lock nut 14 is installed in the joint at driving shaft 1 and bearing housing 2 rear portions by lock washer 15.

When the utility model used, material entered the pump housing from import 11, rotated thereby driving shaft 1 rotation drives driving wheel 5, because driving wheel 5 and follower 6 interior engagements, the rotation of driving wheel 5 drives follower 6 and rotates; Driving wheel 5 is gone into material web between driving wheel 5 and the follower 6, material has the gap of driving wheel 5 and follower 6 to continue motion respectively through swing link 7 places, when driving wheel 5 and follower 6 forward the pump housing to and export 10 places, driving wheel 5 and follower 6 interior engagements, thus material is extruded from exporting 10.

Because rack sleeve 12 of the present utility model plays the effect of sealing, in order to avoid the material in the pump housing 4 leaks.Rear portion at support 3 also is equipped with bearing housing 2, convenient for maintaining and replacing sealing.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any formal and substantial restriction, all those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when can utilizing the above technology contents that discloses, and a little change of making, modify the equivalent variations with differentiation, be equivalent embodiment of the present utility model; Simultaneously, all foundations essence technology of the present utility model all still belongs in the scope of the technical solution of the utility model change, modification and the differentiation of any equivalent variations that above embodiment did.

Claims

1. a gear pump is characterized in that: comprise driving shaft, bearing housing, support, the pump housing, driving wheel, follower, swing link, pump head and driven shaft; Described bearing housing is installed in the rear portion of described support, and the front end of described support is connected with the described pump housing; Described pump head is installed in the front end of the described pump housing; Described driving wheel, follower, swing link and driven shaft are installed in the described pump housing; Described driven shaft is fixed on the described pump head; Described follower is placed on the described driven shaft; Described driving shaft runs through described bearing housing, support and the pump housing; Described driving wheel is placed in described driving shaft front end; Also have export and import on the described pump housing; The radius of described follower is less than the radius of described driving wheel; Described follower places described driving wheel inside, and described driving wheel and described follower mesh in the outlet port of the described pump housing; The relative position of described driving wheel and follower engagement place also is equipped with swing link between described driving wheel and the described follower.

2. gear pump according to claim 1 is characterized in that: this gear pump also comprises rack sleeve; Described rack sleeve is installed on the front end of described support, is placed in the described driving shaft outside.

3. gear pump according to claim 2 is characterized in that: described rack sleeve is that wear-resisting, high temperature material is made.

4. gear pump according to claim 1 is characterized in that: this gear pump also comprises driven axle sleeve; Described driven axle sleeve is installed between described driven shaft and the described follower.

5. gear pump according to claim 4 is characterized in that: described driven axle sleeve is that wear-resisting, high temperature material is made.

6. gear pump according to claim 1 is characterized in that: this gear pump also comprises lock nut and lock washer; Described lock nut is installed in the joint at described driving shaft and bearing housing rear portion by lock washer.