Double-flow-channel centrifugal pump shell

Abstract

The utility model belongs to the technical field of centrifugal pumps, and particularly relates to a double-flow-channel centrifugal pump shell which comprises a fixed base. A centrifugal pump shell is arranged at the top of the fixed base; a mounting base is fixedly connected to the side, away from the centrifugal pump shell, of the top of the fixed base. The end, close to the centrifugal pump shell, of the top of the installation base is fixedly connected with an installation auxiliary ring. The bottom of the inner side of the installation auxiliary ring is rotationally connected with a transmission wheel. The outer side wall of the transmission wheel is rotationally connected with a first transmission belt. During working, the rotating second fixing ring rotates in the direction away from the first fixing ring, finally, a semi-ring shape is formed with the first fixing ring, and the first fixing ring and the second fixing ring are matched with each other to support and fix the outer side wall of the pipeline; the whole device improves the stability when the pipeline is mounted on the side wall of the fixed base; the whole device reduces the situation that the connecting piece is damaged due to the fact that the pipeline inclines in the installation process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to centrifugal pump technical field, specifically is a kind of double-flow centrifugal pump casing. BACKGROUND

[0002] Double-flow centrifugal pump is a kind of centrifugal pump by double-flow liquid delivery, due to the more unique infusion design, can satisfy more chemical process needs, and simple part itself makes centrifugal pump more stable when working.

[0003] In the prior art, double-flow centrifugal pump is often composed of centrifugal pump, double-flow pipe and double-flow centrifugal pump casing, and the double-flow centrifugal pump is more stable by using protective shell, and the maintenance condition is reduced.

[0004] The existing double-flow centrifugal pump casing needs to connect the water pipe and the pipe outside the centrifugal pump casing to the same level during installation, and then flange connection can be carried out, and the staff needs to continuously hold the pipe to be installed during installation, which reduces the work efficiency, and when the pipe is inclined during installation, the connecting part is easily damaged. UTILITY MODEL CONTENTS

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the utility model provides a double-flow centrifugal pump casing.

[0006] The utility model solves its technical problem adopts the technical scheme that the utility model discloses a double -flow channel centrifugal pump casing, including fixed base, centrifugal pump casing is arranged at the top of fixed base, the one side fixed junction of centrifugal pump casing far away from the top of fixed base is provided with the mounting seat, the one end fixed junction of mounting seat top near centrifugal pump casing is provided with mounting auxiliary ring, the inside bottom rotation of mounting auxiliary ring is connected with transmission wheel, the outside wall rotation of transmission wheel is connected with first transmission belt, the top rotation of mounting seat is connected with first rotation column, the outside wall of first rotation column and the inside wall of first transmission belt are mutually pasted, the one end fixed junction of first rotation column is provided with second rotation column, the outside wall rotation of second rotation column is connected with second transmission belt, the one end rotation of mounting seat top far away from first rotation column is connected with first transmission gear, the outside wall of first transmission gear and the inside wall of second transmission belt are mutually pasted, the one end fixed junction of mounting seat far away from fixed base is provided with stable side plate, the inside slide of stable side plate is connected with first rack, the top fixed junction of first rack top far away from stable side plate one end is provided with moving column, the top fixed junction of moving column is provided with first fixed ring, the inside rotation of moving column is connected with screw gear, the inside rotation of first fixed ring is connected with second fixed ring, the screw gear and second fixed ring are mutually engaged, the top fixed junction of mounting seat is provided with fixed arm, the inside screw of screw gear is connected with screw fixed column, the screw fixed column and fixed arm are mutually connected.

[0007] Preferably, the second transmission gear is fixedly connected to the one end of the first rotation column away from the first transmission belt; the spring column is fixedly connected to the inside of the mounting seat; the second rack is fixedly connected to the top of the spring column; the second rack is engaged with the second transmission gear; the auxiliary jacking rod is fixedly connected to the top of the second rack; the limiting sleeve ring is fixedly connected to the top of the mounting seat; the limiting rod is slidably connected to the inside of the limiting sleeve ring; and the limiting rod is connected to the bottom of the auxiliary jacking rod.

[0008] Preferably, the third fixed ring is fixedly connected to the both side walls of the stable side plate; the first clamping block is fixedly connected to the both side walls of the third fixed ring; the limiting groove is formed in the both side walls of the first rack; and the first clamping block is pasted to the inside wall of the limiting groove.

[0009] Preferably, the fourth fixed ring is fixedly connected to the top of the stable side plate; the connecting plate is slidably connected to the inside of the fourth fixed ring; and the connecting plate is connected to the side wall of the first fixed ring.

[0010] Preferably, the pair of first fixed plates are fixedly connected to the top of the mounting seat; the third rotation column is rotatably connected to the side wall of the pair of first fixed plates close to each other; and the third rotation column is pasted to the inside wall of the second transmission belt.

[0011] Preferably, the sliding groove is formed in the outside wall of the first fixed ring; the second clamping block is slidably connected to the inside of the sliding groove; and the second clamping block is connected to the side wall of the second fixed ring.

[0012] Preferably, the fixed base top is fixed with a pair of second fixed plates; a pair of the second fixed plates are rotatably connected with fourth rotating columns on the side wall close to each other; the outer side wall of the fourth rotating column is matched with the inner side wall of the first transmission belt.

[0013] The utility model discloses the beneficial effects of:

[0014] 1. The utility model provides a double -flow channel centrifugal pump casing, and the first rack moves together with the moving column, and finally the threaded fixed column inserts the inside of the threaded gear, and the threaded gear can drive the second fixed ring to rotate along with the moving column, and the second fixed ring in rotation rotates to the direction of being away from the first fixed ring, and finally forms a half -ring type with the first fixed ring, and the first fixed ring and the second fixed ring are cooperated to support and fix the outside wall of the pipeline, the stability when the pipeline is installed on the side wall of the fixed base is improved, and the overall device reduces the damage of the connecting piece caused by the inclination of the pipeline in the installation process.

[0015] 2. The utility model provides a double -flow channel centrifugal pump casing can drive second transmission gear and rotate together, so that the spring column drives the auxiliary ejector rod to move upwards, and finally the auxiliary ejector rod top and the outside wall of the pipeline to be installed are matched with each other, and because the auxiliary ejector rod is of elastic material, the bottom of the special-shaped pipeline is supported, and the overall device improves the fixing effect of the pipeline of different shapes, and through the cooperation of the limiting sleeve ring and the limiting rod, the moving process of the auxiliary ejector rod can be more stable. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described here are used to provide further understanding of the utility model, and constitute a part of the application, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation to the utility model. In the drawings:

[0017] Figure 1 It is the fixed base perspective drawing of the utility model;

[0018] Figure 2 It is the perspective drawing of the first rack in the utility model;

[0019] Figure 3 It is Figure 2 the enlarged view of A of

[0020] Figure 4 It is the perspective drawing of the second fixed ring in the utility model;

[0021] Figure 5 It is Figure 4 the enlarged view of B of

[0022] Legend:

[0023] 1, fixed base; 11, centrifugal pump housing; 12, mounting seat; 13, mounting auxiliary ring; 14, drive wheel; 15, first drive belt; 16, first rotating column; 17, second rotating column; 18, second drive belt; 19, first drive gear; 110, stabilizing side plate; 111, first rack; 112, moving column; 113, first fixed ring; 114, threaded gear; 115, second fixed ring; 116, fixed arm; 117, threaded fixed column; 2, second drive gear; 21, spring column; 22, second rack; 23, auxiliary ejector rod; 24, limit sleeve ring; 25, limit rod; 3, third fixed ring; 31, first clamping block; 32, limit groove; 4, fourth fixed ring; 41, connecting plate; 5, first fixed plate; 51, third rotating column; 6, sliding groove; 61, second clamping block; 7, second fixed plate; 71, fourth rotating column. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Specific embodiments are given below.

[0026] Please refer to Figures 1-5The utility model provides a double -flow centrifugal pump casing, including fixed base 1, the fixed base 1 top is provided with centrifugal pump casing 11, the fixed base 1 top is away from centrifugal pump casing 11 one side fixedly connected with mounting seat 12, mounting seat 12 top is close to centrifugal pump casing 11 one end fixedly connected with installation auxiliary ring 13, installation auxiliary ring 13 inboard bottom rotation is connected with transmission wheel 14, transmission wheel 14 outside wall rotation is connected with first transmission belt 15, mounting seat 12 top rotation is connected with first rotation column 16, first rotation column 16 outside wall and first transmission belt 15 inwall mutually adhere, first rotation column 16 one end fixedly connected with second rotation column 17, second rotation column 17 outside wall rotation is connected with second transmission belt 18, mounting seat 12 top is away from first rotation column 16 one end rotation and is connected with first transmission gear 19, first transmission gear 19 outside wall and second transmission belt 18 inwall mutually adhere, mounting seat 12 is away from fixed base 1 one end fixedly connected with stable side plate 110, stable side plate 110 inboard sliding connection has first rack 111, first rack 111 top is away from stable side plate 110 one end top fixedly connected with moving column 112, moving column 112 top fixedly connected with first fixed ring 113, moving column 112 inside rotation is connected with screw gear 114, first fixed ring 113 inboard rotation is connected with second fixed ring 115, screw gear 114 and second fixed ring 115 mutually engage, mounting seat 12 top fixedly connected with fixed arm 116, screw gear 114 inboard screw connection has screw fixed column 117, screw fixed column 117 and fixed arm 116 are connected, when needing to install pipeline and fixed base 1 interconnection when working, the pipeline to be installed is placed in the inside of installation auxiliary ring 13 and is pushed to the direction of fixed base 1, and during the moving process, drive transmission wheel 14 to rotate, and first transmission belt 15, first rotation column 16, second rotation column 17, second transmission belt 18 and first transmission gear 19 drive first rack 111 to move to the direction of fixed base 1, moving column 112 moves along with first rack 111, finally screw fixed column 117 is inserted into the inboard of screw gear 114, with moving column 112 moves, screw gear 114 can drive second fixed ring 115 to rotate, the second fixed ring 115 in rotation is rotated to the direction away from first fixed ring 113, finally forms a half ring type with first fixed ring 113, and the pipeline outside wall is supported and fixed by first fixed ring 113 and second fixed ring 115 cooperation work, the stability of the pipeline installation in the side wall of fixed base 1 is improved, and the overall device reduces the damage of connecting piece due to the inclination of pipeline during installation.

[0027] Further, as Figure 4 And Figure 5As shown, a second transmission gear 2 is fixedly connected to the end of the first rotating column 16 away from the first transmission belt 15; a spring column 21 is fixedly connected to the inner side of the mounting base 12; a second rack 22 is fixedly connected to the top of the spring column 21; the second rack 22 meshes with the second transmission gear 2; an auxiliary push rod 23 is fixedly connected to the top of the second rack 22; a limiting collar 24 is fixedly connected to the top of the mounting base 12; a limiting rod 25 is slidably connected to the inner side of the limiting collar 24; the limiting rod 25 is connected to the bottom of the auxiliary push rod 23; during operation, when the first rotating column 16 rotates, it can drive the second transmission gear 2 to rotate together, thereby causing the spring column 21 to drive the auxiliary push rod 23 to move upward, and finally the top of the auxiliary push rod 23 fits against the outer wall of the pipe to be installed. Because the auxiliary push rod 23 is made of elastic material, it supports the bottom of the irregularly shaped pipe, and the overall device improves the fixing effect on pipes of different shapes; and through the cooperation of the limiting collar 24 and the limiting rod 25, the movement of the auxiliary push rod 23 can be made more stable.

[0028] Furthermore, such as Figure 3 As shown, a third fixing ring 3 is fixedly connected to both sides of the stabilizing side plate 110; a first locking block 31 is fixedly connected to both sides of the third fixing ring 3; a limiting groove 32 is formed on both sides of the first rack 111; the outer side wall of the first locking block 31 and the inner side wall of the limiting groove 32 are in contact with each other; during operation, as the first rack 111 moves through the stabilizing side plate 110, the third fixing ring 3, the first locking block 31 and the limiting groove 32 cooperate with each other to support the first rack 111, reducing the load at the connection between the stabilizing side plate 110 and the first rack 111; and improving the stability of the first rack 111 during long-term operation.

[0029] Furthermore, such as Figure 1 As shown, a fourth fixing ring 4 is fixedly connected to the top of the stabilizing side plate 110; a connecting plate 41 is slidably connected to the inner side of the fourth fixing ring 4; the connecting plate 41 is connected to the side wall of the first fixing ring 113; during operation, the fourth fixing ring 4 and the connecting plate 41 cooperate with each other to achieve the effect of supporting the middle part of the first fixing ring 113, and reduce the load at the connection between the stabilizing side plate 110 and the first rack 111; thus improving the service life of the first rack 111 and the stabilizing side plate 110.

[0030] Furthermore, such as Figure 3As shown, a pair of first fixing plates 5 are fixedly connected to the top of the mounting base 12; a third rotating column 51 is rotatably connected to the pair of first fixing plates 5 close to each other on one side wall; the outer side wall of the third rotating column 51 is in contact with the inner side wall of the second transmission belt 18; during operation, the first fixing plate 5 and the third rotating column 51 cooperate with each other to support the middle of the second transmission belt 18, thereby reducing the possibility of the middle of the second transmission belt 18 sagging due to long-term operation; the overall device improves the stability of the second transmission belt 18.

[0031] Furthermore, such as Figure 3 As shown, a groove 6 is provided on the outer wall of the first fixing ring 113; a second locking block 61 is slidably connected to the inner side of the groove 6; the second locking block 61 is connected to the side wall of the second fixing ring 115; during operation, as the second fixing ring 115 moves through the inner side of the first fixing ring 113, the groove 6 and the second locking block 61 can limit the rotation range of the second fixing ring 115 in multiple ways, thereby improving the stability of the second fixing ring 115 when it rotates inside the first fixing ring 113 for a long time.

[0032] Furthermore, such as Figure 5 As shown, a pair of second fixing plates 7 are fixedly connected to the top of the fixed base 1; a fourth rotating column 71 is rotatably connected to the pair of second fixing plates 7 close to each other on one side wall; the outer side wall of the fourth rotating column 71 is in contact with the inner side wall of the first transmission belt 15; during operation, the second fixing plate 7 and the fourth rotating column 71 cooperate with each other to support the middle of the first transmission belt 15, thereby improving the stability of the first transmission belt 15 during long-term operation and reducing the occurrence of the first transmission belt 15 sagging in the middle.

[0033] Working principle: During operation, when a pipe needs to be connected to the fixed base 1, the pipe to be installed is placed inside the installation auxiliary ring 13 and pushed towards the fixed base 1. During the movement, the drive wheel 14 rotates, and through the first drive belt 15, the first rotating column 16, the second rotating column 17, the second drive belt 18, and the first drive gear 19, the first rack 111 is driven to move towards the fixed base 1. The moving column 112 moves together with the first rack 111. Finally, the threaded fixing column 117 is inserted into the inside of the threaded gear 114. As the moving column 112 moves, the threaded gear 114 can drive the second fixing ring 115 to rotate. The rotating second fixing ring 115 rotates away from the first fixing ring 113, eventually forming a connection with the first fixing ring. 113 forms a semi-circular shape, with the first fixing ring 113 and the second fixing ring 115 working together to support and fix the outer wall of the pipe; the overall device improves the stability of the pipe when installed on the side wall of the fixed base 1; the overall device reduces the occurrence of damage to the connectors due to pipe tilting during installation; during operation, when the first rotating column 16 rotates, it can drive the second transmission gear 2 to rotate together, thereby causing the spring column 21 to drive the auxiliary push rod 23 to move upward, and finally the top of the auxiliary push rod 23 fits against the outer wall of the pipe to be installed, and because the auxiliary push rod 23 is made of elastic material, it supports the bottom of irregularly shaped pipes, and the overall device improves the fixing effect of pipes of different shapes; and the limiting collar 24 and the limiting rod 25 The interaction between the auxiliary push rod 23 and the third fixing ring 3, the first locking block 31, and the limiting groove 32 during operation makes the movement of the first rack 111 more stable. During operation, as the first rack 111 moves through the stabilizing side plate 110, the third fixing ring 3, the first locking block 31, and the limiting groove 32 work together to support the first rack 111, reducing the load at the connection between the stabilizing side plate 110 and the first rack 111, thus improving the stability of the first rack 111 during long-term operation. During operation, the fourth fixing ring 4 and the connecting plate 41 work together to provide central support for the first fixing ring 113 and reduce the load at the connection between the stabilizing side plate 110 and the first rack 111, thereby extending the service life of the first rack 111 and the stabilizing side plate 110. During operation, the first fixing plate 5 and the third rotating column 51 work together... In conjunction with the first fixed ring 113, the second fixed ring 115 can support the middle part of the first fixed ring 113, thereby reducing the possibility of the second fixed ring 115 sagging in the middle during long-term operation; the overall device improves the stability of the second fixed ring 18; during operation, as the second fixed ring 115 moves through the inner side of the first fixed ring 113, the slide groove 6 and the second locking block 61 can limit the rotation range of the second fixed ring 115 in multiple ways, improving the stability of the second fixed ring 115 when rotating inside the first fixed ring 113 for a long time; during operation, the second fixed plate 7 and the fourth rotating column 71 cooperate with each other to support the middle part of the first fixed ring 15, improving the stability of the first fixed ring 15 during long-term operation and reducing the possibility of the first fixed ring 15 sagging in the middle.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A dual-flow-channel centrifugal pump housing, comprising a fixed base (1); characterized in that: The fixed base (1) is provided with a centrifugal pump housing (11) on its top; a mounting seat (12) is fixedly connected to the top of the fixed base (1) on the side away from the centrifugal pump housing (11); an installation auxiliary ring (13) is fixedly connected to the top of the mounting seat (12) near the centrifugal pump housing (11); a transmission wheel (14) is rotatably connected to the bottom inner side of the installation auxiliary ring (13); a first transmission belt (15) is rotatably connected to the outer side wall of the transmission wheel (14); a first rotating column (16) is rotatably connected to the top of the mounting seat (12); the outer side wall of the first rotating column (16) is in contact with the inner side wall of the first transmission belt (15); a second rotating column (17) is fixedly connected to one end of the first rotating column (16); a second transmission belt (18) is rotatably connected to the outer side wall of the second rotating column (17); a first transmission gear (19) is rotatably connected to the top of the mounting seat (12) away from the first rotating column (16); the first transmission gear (19) The outer side wall is in contact with the inner side wall of the second transmission belt (18); a stable side plate (110) is fixedly connected to the end of the mounting base (1) away from the fixed base (1); a first rack (111) is slidably connected to the inner side of the stable side plate (110); a moving column (112) is fixedly connected to the top of the first rack (111) away from the stable side plate (110); a first fixing ring (113) is fixedly connected to the top of the moving column (112); a threaded gear (114) is rotatably connected inside the moving column (112); a second fixing ring (115) is rotatably connected to the inner side of the first fixing ring (113); the threaded gear (114) and the second fixing ring (115) mesh with each other; a fixing arm (116) is fixedly connected to the top of the mounting base (12); a threaded fixing column (117) is threadedly connected to the inner side of the threaded gear (114); the threaded fixing column (117) and the fixing arm (116) are connected to each other.

2. The casing of a dual-flow-channel centrifugal pump as described in claim 1, characterized in that: The first rotating column (16) is fixedly connected to a second transmission gear (2) at the end away from the first transmission belt (15); a spring column (21) is fixedly connected to the inner side of the mounting base (12); a second rack (22) is fixedly connected to the top of the spring column (21); the second rack (22) meshes with the second transmission gear (2); an auxiliary push rod (23) is fixedly connected to the top of the second rack (22); a limiting collar (24) is fixedly connected to the top of the mounting base (12); a limiting rod (25) is slidably connected to the inner side of the limiting collar (24); the limiting rod (25) is connected to the bottom of the auxiliary push rod (23).

3. The dual-flow-channel centrifugal pump housing as described in claim 1, characterized in that: The stabilizing side plate (110) has a third fixing ring (3) fixed to both sides; the third fixing ring (3) has a first locking block (31) fixed to both sides; the first rack (111) has a limiting groove (32) on both sides; the outer side wall of the first locking block (31) and the inner side wall of the limiting groove (32) are in contact with each other.

4. The casing of a dual-flow-channel centrifugal pump as described in claim 1, characterized in that: The top of the stabilizing side plate (110) is fixedly connected to a fourth fixing ring (4); a connecting plate (41) is slidably connected to the inner side of the fourth fixing ring (4); the connecting plate (41) is connected to the side wall of the first fixing ring (113).

5. The casing of a dual-flow-channel centrifugal pump as described in claim 1, characterized in that: The mounting base (12) is fixed to a pair of first fixing plates (5); the pair of first fixing plates (5) are rotatably connected to a third rotating column (51) on one side wall close to each other; the outer side wall of the third rotating column (51) is in contact with the inner side wall of the second transmission belt (18).

6. The casing of a dual-flow-channel centrifugal pump as described in claim 1, characterized in that: The outer wall of the first fixing ring (113) is provided with a sliding groove (6); a second locking block (61) is slidably connected to the inner side of the sliding groove (6); the second locking block (61) is connected to the side wall of the second fixing ring (115).

7. The casing of a dual-flow-channel centrifugal pump as described in claim 1, characterized in that: The top of the fixed base (1) is fixed with a pair of second fixed plates (7); the pair of second fixed plates (7) are rotatably connected to a fourth rotating column (71) on one side wall close to each other; the outer side wall of the fourth rotating column (71) is in contact with the inner side wall of the first transmission belt (15).

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