CN201250777Y

CN201250777Y - Stacked-disc metal-sheath screw pump

Info

Publication number: CN201250777Y
Application number: CNU2008200270227U
Authority: CN
Inventors: 徐德顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-22
Filing date: 2008-08-22
Publication date: 2009-06-03
Anticipated expiration: 2018-08-22

Abstract

The utility model relates to a stacked-disc metal-sheath screw pump, belonging to the pump field and being mainly used for conveying various solvents, coal tar and high-temperature mediums with more than 200 DEG C and the like in oil fields and chemical industry. The stacked-disc metal-sheath screw pump comprises a pump body (3), a transmission shaft (10), a universal shaft (9), a screw (5), a screw sleeve, keys (6), a locking ring (2), a blocking ring (7) and the like; the transmission shaft (10) is connected with the screw (5) by the universal shaft (9); the screw sleeve is fixed in the pump body (3) by the keys (6); two ends of the screw sleeve are tightly fixed with the blocking ring (7) by the locking ring (2); the two ends of the pump body (3) are respectively provided with a suction inlet (8) and a discharge outlet (1); and the screw sleeve is a stacked-disc metal screw sleeve (4) which is formed by a plurality of metal stacked discs (11) which are connected and fixed into one body. The stacked-disc metal-sheath screw pump has the advantages of small size, light weight, being capable of being made to be the length of thread pitch of 4 to 10 and solving the difficulty that the prior art can not process to the inner cavity of the long and thin pump body and the like.

Description

Stacked metallic sheath screw pump

Technical field

Stacked metallic sheath screw pump belongs to the pump field.Be mainly used in corrosion resistances such as oil field, chemical industry, wear resistance, high temperature resistant demanding occasion as the conveying of the high temperature media that all kinds of solvents, coal tar oil and 200 degree are above etc.

Background technique

Traditional helical rotor pump generally is to match with screw rod with the elastic caoutchouc cover, and some external helical rotor pumps also have and adopt short cast iron cover to match with screw rod, but this cast iron screw-casing can only be made 1-2 pitch length at present, can not satisfy production requirement.In the patent of notice of authorization, the inventor has designed a kind of helical rotor pump of high pressure.This pump passes through elastic caoutchouc cover and screw rod to match that helical rotor pump compares is a much progress with traditional, under identical boundary dimension, the pressure of pump can double, and can carry rubber material the medium that can not carry, as: the high temperature media that all kinds of solvents, coal tar oil and 200 degree are above etc., but, therefore still have many deficiencies to need to improve because its single-stage lift is lower.

The model utility content

The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of volume little, in light weight, process simply, can carry various media, the stacked metallic sheath screw pump that single-stage lift is higher.The technological scheme that its technical problem that solves the utility model adopts is: this stacked metallic sheath screw pump, comprise the pump housing, suction port, exhaust port, transmission shaft, cardan shaft, screw rod, screw rod cover, key, locking ring, ring washer, transmission shaft links to each other with screw rod by cardan shaft, the screw rod cover is fixed in the pump housing by key, screw rod cover two ends are fastening by locking ring and ring washer, pump housing two ends are respectively equipped with suction port and exhaust port, it is characterized in that: screw rod cover is connected and fixed stacked metal screw cover into one for the multi-disc metallic laminations.

Every metallic laminations of stacked metal screw cover is round, and the center has through hole, and the edge is suppressed with stiffening rib, and through hole is to be used for screw rod to rotate in stacked metal screw cover.

The stiffening rib of metallic laminations edge compacting is the 1-3 bar.

By resin-bonded, mainly can adopt epoxy bond between metallic laminations.

Metallic laminations thickness is 0.2-1.2mm.

Metallic laminations is that a kind of material in carbon steel, stainless steel or the Cuprum alloy is made.

Compared with prior art, the beneficial effect that had of stacked metallic sheath screw pump of the present utility model is: stacked metal screw cover is to be become one by epoxy bond by some metallic laminations.Make the making of metal screw cover more convenient simple, solved the difficult problem that prior art can't be processed elongated pump housing inner chamber.And the metal screw cover that can make various different lengths according to the thickness and the sheet numeral system of metallic laminations, reduced difficulty of processing.The structure that stacked metal screw cover matches with screw rod has guaranteed advantages such as the volume of helical rotor pump is little, and is in light weight.Adopt the metal screw cover can make this helical rotor pump carry the rubber material the medium that can not carry.External cast iron screw rod cover can only be made 1-2 pitch length at present, and the stacked metal screw cover that the utility model adopts metallic laminations to make, 4-10 pitch length even longer can be made, thereby this stacked metallic sheath screw pump the stacked metallic sheath screw pump of high pressure can be made into.Pressure-bearing, wear-resisting, corrosion-resistant.Satisfying the occasion of carrying various materials uses.

Description of drawings

Fig. 1 is stacked metallic sheath screw pump sectional structure schematic representation;

Fig. 2 is that the metallic laminations master looks cross-sectional schematic;

Fig. 3 is the plan view of Fig. 2;

Fig. 4 is the local enlarged diagram of the I-I of Fig. 2 stiffening rib.

Fig. 1-the 4th, the most preferred embodiment of the stacked metallic sheath screw pump of the utility model.Wherein: 1, exhaust port 2, locking ring 3, the pump housing 4, stacked metal screw cover 5, screw rod 6, key 7, back-up ring 8, suction port 9, cardan shaft 10, transmission shaft 11 metallic laminations 12 stiffening ribs 13 through holes.

Embodiment

1-2 is described further the utility model below in conjunction with accompanying drawing:

With reference to accompanying drawing 1:

This stacked metallic sheath screw pump is by the pump housing 3, suction port 8, exhaust port 1, transmission shaft 10, cardan shaft 9, screw rod 5, stacked metal screw cover 4, key 6, locking ring 2, ring washer 7, stacked metal screw cover 4 are fixedly to be become one by epoxy bond by some metallic laminations 11.Also can be bonding by the glue or the adhesive material of other corrosion-and high-temp-resistants.Transmission shaft 10 links to each other with screw rod 5 by cardan shaft 9, and stacked metal screw cover 4 is fixed in the pump housing 3 by key 6, and stacked metal screw overlaps that locking ring 2 is passed through at 4 two ends and ring washer 7 is fastening, and the pump housing 3 two ends are respectively equipped with suction port 8 and exhaust port 1.

With reference to accompanying drawing 2-4:

Be the parts drawing of the single lamination of stacked metal screw cover of the present utility model, metallic laminations 11 is round, and the center has through hole 13, and the edge is suppressed with stiffening rib 12.The stiffening rib 12 of metallic laminations 11 edges compacting is the 1-3 bar.11 of metallic laminations pass through epoxy bond.Thickness is 0.2-1.2mm.Too thick will the making of thickness made the increase difficulty.This metallic laminations 11 can adopt a kind of material punching press in carbon steel, stainless steel or the Cuprum alloy to make according to the fed sheet of a media situation.Also can adopt alloy material to make.

Working principle is as follows to working procedure: the general structure of the stacked metallic sheath screw pump of the utility model is similar substantially to traditional helical rotor pump, and its inventive point is the elastic caoutchouc cover is replaced by stacked metal screw cover.Stacked metal screw cover 4 is fixed in the pump housing 3 by key 6, about fastening by locking ring 2 and back-up ring 7 respectively.When gear reducer drives transmission shaft 10 rotations, transmission shaft 10 drives screw rod 5 by cardan shaft 9 and make revolution and spinning motion in stacked metal screw cover 3, liquid in the suction port 8 is inhaled in the cavity of

screw rod

5 and 4 engagements of stacked metal screw cover, along with the liquid in the engagement in rotation cavity of screw rod 5 is transported to exhaust port 1.Like this, continuous motion again and again makes the liquid in the suction port 8 be transported to exhaust port 1 continuously, reaches the purpose of carrying liquid.

Claims

1, stacked metallic sheath screw pump, comprise the pump housing (3), suction port (8), exhaust port (1), transmission shaft (10), cardan shaft (9), screw rod (5), the screw rod cover, key (6), locking ring (2), ring washer (7), transmission shaft (10) links to each other with screw rod (5) by cardan shaft (9), the screw rod cover is fixed in the pump housing (3) by key (6), screw rod cover two ends are fastening by locking ring (2) and ring washer (7), the pump housing (3) two ends are respectively equipped with suction port (8) and exhaust port (1), it is characterized in that: the screw rod cover is that multi-disc metallic laminations (11) is connected and fixed the stacked metal screw cover (4) into one.

2, stacked metallic sheath screw pump according to claim 1 is characterized in that: the every metallic laminations (11) of stacked metal screw cover (4) is for round, and the center has through hole (13), and the edge is suppressed with stiffening rib (12).

3, stacked metallic sheath screw pump according to claim 2 is characterized in that: the stiffening rib (12) of metallic laminations (11) edge compacting is the 1-3 bar.

4, stacked metallic sheath screw pump according to claim 1 is characterized in that: pass through resin-bonded between metallic laminations (11).

5, stacked metallic sheath screw pump according to claim 1 is characterized in that: metallic laminations (11) thickness is 0.2-1.2mm.

6, stacked metallic sheath screw pump according to claim 1 is characterized in that: metallic laminations (11) is made for a kind of material in carbon steel, stainless steel or the Cuprum alloy.