CN210977876U

CN210977876U - Anti-corrosion composite shell structure

Info

Publication number: CN210977876U
Application number: CN201922135457.4U
Authority: CN
Inventors: 柯建汝
Original assignee: Zhejiang Chuangwei Vacuum Equipment Share Co ltd
Current assignee: Zhejiang Chuangwei Vacuum Equipment Share Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-10
Anticipated expiration: 2029-12-03

Abstract

The utility model relates to a roots vacuum pump technical field specifically is an anticorrosion composite housing structure, including pump body shell, pump body shell's inside is pegged graft and is had pump body bush, and pump body bush's outer wall is provided with inside sunken cooling half groove A, and pump body shell's inner wall also is provided with inside sunken cooling half groove B, is formed with the cooling chamber through cooling half groove A and cooling half groove B between pump body shell and the pump body bush, and the guide way has all been seted up at pump body shell's inboard bottom both ends. This real design utilizes the cooling half groove A of pump body bush outer wall and the cooling half groove B of pump body shell inner wall to surround and form the cooling chamber, and the use of cooperation coolant entry conveniently pours into coolant into, utilizes coolant to absorb the heat that the pump body during operation produced, and the use of cooperation guide way when installing moreover makes pump body bush insert pump body shell in-process can not form the friction with between the pump body shell inner wall, and the installation effectiveness is high, and the degree of wear is low.

Description

Anti-corrosion composite shell structure

Technical Field

The utility model relates to a roots vacuum pump technical field specifically is an anticorrosion composite housing structure.

Background

The operational environment of roots vacuum pump is comparatively abominable, and the corrosivity is higher sometimes for compressed gas, in order to avoid the pump case corruption, need set up the bush that corrosion-resistant material made in the pump case to the protection pump body, the utility model discloses just designed a compound shell structure of anticorrosion.

Chinese patent also discloses a screw vacuum pump's improvement structure (No. CN200820083303), and the pump body inner wall among this patent technology is straight, leads to the bush cover to insert when installing from pump body one end, and the bush can have great frictional force with pump body inner wall all the time, even the bush installation is comparatively hard, makes the bush wearing and tearing when the installation again, and current bush installation is also comparatively inconvenient moreover. Accordingly, one skilled in the art has provided an anti-corrosion composite shell structure that addresses the problems set forth in the background above.

Disclosure of Invention

An object of the utility model is to provide a compound shell structure anticorrosives to solve the more convenient problem of how to make the bush installation that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compound shell structure anticorrosives, includes pump body shell, pump body shell's inside is pegged graft and is had pump body bush, pump body bush's outer wall is provided with inwards sunken and be annular cooling half groove A along circumference, pump body shell's inner wall is provided with inwards sunken and is annular cooling half groove B also along circumference, surround through cooling half groove A and cooling half groove B between pump body shell and the pump body bush and be formed with the cooling chamber, the guide way has all been seted up at pump body shell's inboard bottom both ends, the inner wall of pump body shell's rear end is opened along circumference has annular constant head tank, pump body bush's rear end has annular location protruding edge, the protruding edge of location imbeds in the constant head tank and the protruding edge of location links firmly through fixing bolt with the inner wall of constant head tank.

The anti-corrosion composite shell structure of the design is characterized in that a cooling cavity is formed by encircling a cooling half-groove B on the inner wall of a pump shell and a cooling half-groove A on the outer wall of a pump bushing, the cooling cavity is matched with a cooling medium inlet and a cooling medium outlet, so that the cooling medium can be conveniently injected into the cooling cavity, heat generated by the working of a pump body can be absorbed, and the pump body can be protected, in addition, when the anti-corrosion composite shell structure is installed, the pump bushing is inserted into the pump shell, only the outer walls at two ends of the pump bushing are matched with the inner walls at two ends of the pump shell, and in the process of inserting the pump bushing, the middle part of the pump shell is inwards sunken, and the middle part of the pump bushing is inwards sunken, so that the contact between the pump bushing and the pump shell is reduced in the process of inserting the pump bushing into the pump shell, and friction between, the simple installation, the installation is accomplished the back, and the protruding edge in location of pump body bush rear end supports with the inner wall of constant head tank and leans on in the constant head tank of embedding pump body shell rear end, and the protruding edge in location passes through fixing bolt with the constant head tank and fixes, guarantees the stability of being connected between pump body bush and the pump body shell.

In the above-described corrosion-resistant composite shell structure: the inner wall of cooling half groove A is provided with a plurality of bush strengthening ribs, the bush strengthening rib sets up and extends along pump body bush's circumference along pump body bush's axial interval, cooling half groove B's inner wall is provided with a plurality of shell strengthening ribs, the shell strengthening rib sets up and extends along pump body shell's circumference along pump body shell's axial interval. Like this, the structural strength of pump body shell and pump body bush is higher.

In the above-described corrosion-resistant composite shell structure: and sealing rings are arranged at the joint of the pump body shell and the pump body bushing and are positioned at two ends of the cooling cavity. Through setting up the sealing washer, avoided the outside seepage of coolant from between pump body shell and the pump body bush, sealed effect is better.

In the above-described corrosion-resistant composite shell structure: the lower surface bottom of pump body shell sets up the coolant entry with cooling chamber through connection, upper end one side of pump body shell is provided with the coolant export, and the upper end opposite side of pump body shell is provided with the temperature instrument and detects the mouth, four corners in the bottom of pump body shell all are provided with the landing leg, enter the mouth through the coolant and conveniently pour into coolant into the cooling chamber, and accessible temperature instrument detects the mouth and connects temperature measuring instrument, is convenient for carry out real-time supervision to coolant's temperature.

In the above-described corrosion-resistant composite shell structure: the cooling medium outlet and the temperature instrument detection port are communicated with the cooling cavity, the cooling medium is filled in the cooling cavity, the heat generated during the operation of the pump body can be absorbed by the cooling medium, the pump body can be protected, and the pump shell is prevented from being corroded.

In the above-described corrosion-resistant composite shell structure: the sealing ring is a double-channel sealing ring, the sealing ring is a component made of corrosion-resistant rubber, and the double-channel sealing ring can seal the connection between the pump body bushing at the guide groove and the pump body shell, so that the sealing performance is improved.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an anticorrosion composite housing structure, in the time of actual operation, surround through the cooling half groove A that utilizes pump body bush outer wall and the cooling half groove B of pump body shell inner wall and form the cooling chamber, the use of cooperation coolant entry and export, conveniently pour into coolant to the cooling intracavity, utilize coolant to absorb the heat that the pump body during operation produced, also can improve the protective capacities to the pump body simultaneously, and when pump body bush inserted pump body shell in, only need the outer wall at pump body bush both ends and the inner wall at pump body shell both ends to form the cooperation, the use of deuterogamy guide way, make pump body bush insert pump body shell in-process can not with pump body shell inner wall between form the friction, this design is not only installed conveniently, and the degree of wear is also very little in the pump body bush installation, and then improved the installation effectiveness of bush.

Drawings

FIG. 1 is a cross-sectional view of an anti-corrosion composite shell structure;

FIG. 2 is a schematic structural view of an anti-corrosion composite shell structure;

FIG. 3 is an enlarged schematic view of portion A of an anticorrosion composite shell structure.

In the figure: 1. a pump body housing; 2. a shell reinforcing rib; 3. a bushing reinforcing rib; 4. a cooling medium outlet; 5. a seal ring; 6. a temperature meter detection port; 7. a pump body bushing; 8. fixing the bolt; 9. a cooling chamber; 10. a cooling medium inlet; 11. a support leg; 12. a guide groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in the embodiment of the present invention, an anti-corrosion composite shell structure comprises a pump body shell 1, a pump body bushing 7 is inserted into the pump body shell 1, an outer wall of the pump body bushing 7 is circumferentially provided with an inwardly recessed annular cooling half groove a, an outer surface of the pump body bushing 7 is provided with bushing reinforcing ribs 3, the bushing reinforcing ribs 3 are circumferentially spaced apart from each other and extend in the circumferential direction of the pump body bushing 7, an inner wall of the pump body shell 1 is also circumferentially provided with an inwardly recessed annular cooling half groove B, an inner surface of the pump body shell 1 is provided with shell reinforcing ribs 2, the shell reinforcing ribs 2 are circumferentially spaced apart from each other and extend in the circumferential direction of the pump body shell 1, a cooling cavity 9 is formed between the pump body shell 1 and the pump body bushing 7 through the cooling half groove a and the cooling half groove B, an inner wall of a rear end of the pump body shell 1 is circumferentially provided with an annular positioning groove, the rear end of the pump body bushing 7 is provided with an annular positioning convex edge, the positioning convex edge is embedded into the positioning groove, and the positioning convex edge is fixedly connected with the inner wall of the positioning groove through a fixing bolt 8. The lower surface bottom of pump body shell 1 sets up the coolant entry 10 with cooling chamber 9 through connection, upper end one side of pump body shell 1 is provided with coolant outlet 4, and the upper end opposite side of pump body shell 1 is provided with temperature instrument detection port 6, four corners in the bottom of pump body shell 1 all are provided with landing leg 11, coolant outlet 4 and temperature instrument detection port 6 all with cooling chamber 9 through connection, the inside packing of cooling chamber 9 has coolant, it is convenient to inject coolant into cooling chamber 9 through coolant entry 10, and then can utilize the heat that coolant produced to pump body during operation to absorb, also can avoid the pump body to receive the corruption and influence the problem of its life-span simultaneously.

Guide grooves 12 are formed in two ends of the bottom of the inner side of the pump body shell 1, sealing rings 5 are installed at positions, corresponding to the guide grooves 12, of joints of two ends of the pump body shell 1 and the pump body bushing 7, and the sealing rings 5 are located at two ends of the cooling cavity 9. In the embodiment, the seal ring 5 at the front end of the pump body is a double-channel seal ring, the seal ring 5 is a corrosion-resistant rubber component, a fixing bolt 8 is arranged at the joint of the pump body shell 1 and the rear end of the pump body bush 7, the inner size of the pump body shell 1 is matched with the outer size of the pump body bush 7, and the pump body casing 1 is fixedly connected with the pump body bush 7 through the fixing bolt 8, when in installation, the pump body bush 7 is inserted into the pump body casing 1, only the outer walls at the two ends of the pump body bush 7 are matched with the inner walls at the two ends of the pump body casing 1, and in the process of inserting the pump body bush 7, under the action of the guide groove 12, friction is not formed between the inner wall of the pump body shell 1, and the efficiency of pump body bush 7 installation can be further improved, and after the installation, the junction of pump body shell 1 and the front end of pump body bush 7 is sealed by seal ring 5.

The utility model discloses a theory of operation is: the utility model relates to an anti-corrosion composite shell structure, when in use, the pump body bush 7 is firstly inserted into the pump body shell 1, the outer walls at the two ends of the pump body bush 7 are inosculated with the inner walls at the two ends of the pump body shell 1, and in the inserting process of the pump body bush 7, friction is not formed between the outer walls and the inner walls of the pump body shell 1 under the action of the guide groove 12, furthermore, after the installation is inosculated, cooling medium is injected into the cooling cavity 9 through the cooling medium inlet 10, so that the heat generated in the working process of a pump body can be absorbed by the cooling medium, meanwhile, the protection capability of the pump body can be improved, after the installation is finished, the joint of the front end of the pump body shell 1 and the front end of the pump body bush 7 is sealed by the double-channel sealing ring 5, the joint at the rear end is fixed by the fixing bolt 8, and the installation of the pump body bush 7 is finished, the shell structure of, wear of the pump block bushing 7 is avoided.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-corrosion composite shell structure comprises a pump body shell (1) and is characterized in that, a pump body bushing (7) is inserted in the pump body shell (1), the outer wall of the pump body bushing (7) is provided with an inward-concave annular cooling semi-groove A along the circumferential direction, the inner wall of the pump body shell (1) is also provided with an inwards-concave annular cooling semi-groove B along the circumferential direction, a cooling cavity (9) is formed between the pump body shell (1) and the pump body bush (7) by surrounding a cooling half groove A and a cooling half groove B, two ends of the bottom of the inner side of the pump body shell (1) are respectively provided with a guide groove (12), the inner wall of the rear end of the pump body shell (1) is provided with an annular positioning groove along the circumferential direction, the rear end of the pump body bush (7) is provided with an annular positioning convex edge, the positioning convex edge is embedded into the positioning groove, and the positioning convex edge is fixedly connected with the inner wall of the positioning groove through a fixing bolt (8).

2. The anti-corrosion composite shell structure according to claim 1, wherein the inner wall of the cooling half-groove A is provided with a plurality of bushing reinforcing ribs (3), the bushing reinforcing ribs (3) are arranged along the axial interval of the pump body bushing (7) and extend along the circumferential direction of the pump body bushing (7), the inner wall of the cooling half-groove B is provided with a plurality of shell reinforcing ribs (2), and the shell reinforcing ribs (2) are arranged along the axial interval of the pump body shell (1) and extend along the circumferential direction of the pump body shell (1).

3. An anti-corrosion composite shell structure according to claim 1, characterized in that the joint of the pump body shell (1) and the pump body liner (7) is provided with a sealing ring (5), and the sealing ring (5) is positioned at two ends of the cooling cavity (9).

4. The anti-corrosion composite shell structure according to claim 1, wherein a cooling medium inlet (10) communicated with the cooling cavity (9) is formed in the bottom end of the lower surface of the pump body shell (1), a cooling medium outlet (4) is formed in one side of the upper end of the pump body shell (1), a temperature instrument detection port (6) is formed in the other side of the upper end of the pump body shell (1), and supporting legs (11) are arranged at four corners of the bottom end of the pump body shell (1).

5. The anti-corrosion composite shell structure according to claim 4, wherein the cooling medium outlet (4) and the temperature meter detection port (6) are both connected with a cooling cavity (9) in a penetrating manner, and the cooling cavity (9) is filled with a cooling medium.

6. An anti-corrosion composite shell structure according to claim 3, characterized in that the seal ring (5) is a double seal ring and the seal ring (5) is a corrosion-resistant rubber member.