CN210050023U

CN210050023U - Screw pump with strong sealing performance

Info

Publication number: CN210050023U
Application number: CN201920634972.4U
Authority: CN
Inventors: 熊少军
Original assignee: JIANGXI CHANGLONG PUMP INDUSTRIAL Co Ltd
Current assignee: JIANGXI CHANGLONG PUMP INDUSTRIAL Co Ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-02-11
Anticipated expiration: 2029-05-06

Abstract

The utility model discloses a screw pump with strong sealing performance, which structurally comprises a base, a motor, a switch, a feeding pipe, a connecting flange and a sealing device, and aims to solve the problems that when the existing screw pump is connected with an external pipeline, the screw pump is often connected with the flange head on the pipeline through bolts, which causes the problem of poor sealing effect during connection, the first sealing plate and the second sealing plate can rotate through the first rotating plate and the second rotating plate by arranging the sealing device on the connecting flange and separating the screw rod from the nut, so that the first sealing plate and the second sealing plate are opened, make first closing plate and second closing plate place flange and outside pipeline and seal through the seal groove after putting into outside pipeline, make sealed pad and magnet circle paste tight contact with it, can closely paste tightly when reaching to make screw pump and pipe connection, improve the advantage of sealed effect.

Description

Screw pump with strong sealing performance

Technical Field

The utility model relates to a screw pump technical field, concretely relates to screw pump that leakproofness is strong.

Background

Screw pumps are also known as "screw pumps" and "archimedes screw pumps". A pump for spirally raising water body along axial direction by utilizing rotation of helical blade. Consists of a shaft, a helical blade and a shell. When pumping water, the pump is obliquely arranged in the water, so that the inclination angle of the main shaft of the water pump is smaller than that of the helical blade, and the lower end of the helical blade is contacted with the water. When the prime motor drives the screw pump shaft to rotate through the speed changing device, water enters the blades and rises along the spiral flow channel until the water flows out. Simple structure, it is easy to make, and the flow is great, and head loss is little, and efficiency is higher, and the maintenance of being convenient for, but when current screw pump and outside pipe connection, often connect the flange head on screw pump and the pipeline through the bolt, sealed effect when leading to connecting is relatively poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the screw pump with strong sealing performance is provided, the problem that when the existing screw pump is connected with an external pipeline, the screw pump and a flange head on the pipeline are connected through a bolt frequently, and the sealing effect is poor when the screw pump and the pipeline are connected is solved, and the screw pump can be tightly attached to the pipeline when the screw pump and the pipeline are connected, so that the sealing effect is improved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a screw pump with strong sealing performance, which comprises a base, a first shell, a second shell, a motor, a placing plate, a switch, an external power line, a supporting plate, a feeding pipe, a connecting flange, a feeding port, a stator, a pull rod, a transmission shaft, a bearing, a shaft sealing cover, a universal joint, a middle shaft, a rotor, a discharging port and a sealing device, wherein the left end of the upper end surface of the base is fixedly connected with the bottoms of the first shell and the second shell from left to right in sequence, the right end of the motor is fixedly connected with the first shell, the bottom of the motor is connected with the placing plate through a bolt, the left side of the motor is provided with the switch and the external power line from top to bottom in sequence, the bottom of the supporting plate is welded with the middle part of the upper end surface of the base, the left end and the right end of the, the improved rotary sealing device is characterized in that a feed inlet is formed in the middle of the upper end face of the connecting flange, the left end of the stator is fixedly connected with the right end of the feed inlet pipe, the right end of the stator is fixedly connected with the top of the right end of the base, the left end of the pull rod and the right end of the pull rod are welded with the placing plate and the base respectively, the middle of the right side of the motor penetrates through the first shell and the transmission shaft, the middle of the outer side of the transmission shaft is connected with the bearing in a rolling manner, the right end of the outer side of the transmission shaft is connected with the shaft sealing cover in a rolling manner, the right end of the transmission shaft penetrates through the first shell and the second shell and then is fixedly connected with the left end of the universal joint, the right end of the middle shaft is fixedly connected with the left end of the, The sealing device comprises a second rotating plate, a first sealing plate, a second sealing plate, a sealing groove, a sealing gasket, a magnet ring, a screw, a nut and a spring, wherein the bottom of a circular shaft is fixedly connected with the top of the fixing device, the top and the bottom of the outer side of the circular shaft are respectively rotatably connected with the first rotating plate and the second rotating plate, the rear end of the first rotating plate and the front end of the second rotating plate are respectively connected with the right side of the first sealing plate and the right side of the second sealing plate through bolts, the top and the bottom of the inner sides of the first sealing plate and the second sealing plate are provided with the sealing grooves, the top and the top of the inner side of the sealing groove are connected with the sealing gasket through strong glue, the middle part of the inner side of the sealing groove is provided with the magnet ring, the front end of the outer side of the screw sequentially passes through the left ends of the second sealing plate and the first sealing plate to, the motor is electrically connected with an external power line through a switch.

Further, fixing device is by top frame, clamping screw, underframe and pullover, both ends are through clamping screw and underframe top both ends threaded connection around the top frame bottom, top frame top and pullover bottom weld, pullover inboard and circle axle bottom fixed connection.

Further, the bearing and the shaft sealing cover are respectively positioned inside the first shell and the second shell, and the bearing and the shaft sealing cover are respectively fixedly connected with the first shell and the second shell.

Further, the surface of the magnet ring is a smooth surface, and the thickness of the magnet ring is 2.5 MM.

Furthermore, the inner side structure of the sealing groove is consistent with the outer side structure of the connecting flange, and the inner diameter of the sealing groove is larger than the outer side of the connecting flange.

Further, the thickness of the sealing gasket is 3MM, and the gap distance between the sealing gasket and the contact surface of the connecting flange is less than 0.1 MM.

Further, the round shaft is of a cylindrical structure, and the length of the round shaft is 16 CM.

Furthermore, the sealing gasket is made of rubber.

Furthermore, the spring is made of carbon steel.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) in order to solve the problem that when the existing screw pump is connected with an external pipeline, the screw pump is usually connected with a flange head on the pipeline through a bolt, so that the sealing effect is poor when the screw pump is connected, the first sealing plate and the second sealing plate can rotate through the first rotating plate and the second rotating plate by arranging the sealing device on the connecting flange and separating the screw rod from the nut, so that the first sealing plate and the second sealing plate are opened, the first sealing plate and the second sealing plate are used for placing and sealing the connecting flange and the external pipeline through the sealing groove after the external pipeline is placed in, so that the sealing gasket and the magnet ring are in tight contact with the sealing plate, the screw pump and the pipeline can be tightly attached when connected, the sealing effect is improved, the top frame and the bottom frame can be separated by arranging the fixing device at the bottom of the round shaft and then rotating the fixing screw rod, so that the top frame and the bottom frame can be placed on a feeding pipe, and fix top frame and underframe through the fixed screw of rotating, reach and provide stable fixed effect for the circle axle on the feed inlet, stability effect and convenient to detach's when improving the circle axle and placing advantage.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic structural view of the sealing device of the present invention;

fig. 4 is a schematic view of the fixing structure of the present invention;

fig. 5 is a schematic diagram of the structure of the area a of the present invention.

In the figure: a base-1, a first shell-2, a second shell-3, a motor-4, a placing plate-5, a switch-6, an external power line-7, a supporting plate-8, a feeding pipe-9, a connecting flange-10, a feeding port-11, a stator-12, a pull rod-13, a transmission shaft-14, a bearing-15, a shaft cover-16, a universal joint-17, an intermediate shaft-18, a rotor-19, a discharging port-20, a sealing device-21, a round shaft-2101, a fixing device-2102, a first rotating plate-2103, a second rotating plate-2104, a first sealing plate-2105, a second sealing plate-2106, a sealing groove-2107, a sealing gasket-2108, a magnet ring-2109, a screw-2110, a nut-2111, a switch-6, a switch cover, Spring-2112, top frame-21021, fixing screw-21022, bottom frame-21023 and sleeve head-21024.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a screw pump with high sealing performance: comprises a base 1, a first shell 2, a second shell 3, a motor 4, a placing plate 5, a switch 6, an external power line 7, a supporting plate 8, a feeding pipe 9, a connecting flange 10, a feeding port 11, a stator 12, a pull rod 13, a transmission shaft 14, a bearing 15, a shaft sealing cover 16, a universal joint 17, an intermediate shaft 18, a rotor 19, a discharging port 20 and a sealing device 21, wherein the left end of the upper end surface of the base 1 is fixedly connected with the bottoms of the first shell 2 and the second shell 3 from left to right in sequence, the right end of the motor 4 is fixedly connected with the first shell 2, the bottom of the motor 4 is connected with the placing plate 5 through bolts, the switch 6 and the external power line 7 are sequentially arranged on the left side of the motor 4 from top to bottom, the bottom of the supporting plate 8 is welded with the middle part of the upper end surface of the base 1, the left end and the right end of the, a feed inlet 11 is arranged in the middle of the upper end face of a connecting flange 10, the left end of a stator 12 is fixedly connected with the right end of a feed pipe 9, the right end of the stator 12 is fixedly connected with the top of the right end of a base 1, the left end and the right end of a pull rod 13 are respectively welded with a placing plate 5 and the base 1, the middle of the right side of a motor 4 penetrates through a first shell 2 and a transmission shaft 14, the middle of the outer side of the transmission shaft 14 is connected with a bearing 15 in a rolling manner, the right end of the outer side of the transmission shaft 14 is connected with a shaft sealing cover 16 in a rolling manner, the right end of the transmission shaft 14 penetrates through the first shell 2 and a second shell 3 and then is fixedly connected with the left end of a universal joint 17, the middle of the right side of the universal joint 17 is fixedly connected with an intermediate shaft 18, the right end of, The device comprises a fixing device 2102, a first rotating plate 2103, a second rotating plate 2104, a first sealing plate 2105, a second sealing plate 2106, a sealing groove 2107, a sealing gasket 2108, a magnet ring 2109, a screw 2110, a nut 2111 and a spring 2112, wherein the bottom of a round shaft 2101 is fixedly connected with the top of the fixing device 2102, the top and the bottom of the outer side of the round shaft 2101 are respectively rotatably connected with the first rotating plate 2103 and the second rotating plate 2104, the rear end of the first rotating plate 2103 and the front end of the second rotating plate 2104 are respectively connected with the right side of the first sealing plate 2105 and the second sealing plate 2106 through bolts, the top and the bottom of the inner side of the first sealing plate 2105 and the second sealing plate 2106 are provided with the sealing groove 7, the top and the inner side of the sealing groove 2107 are connected with the sealing gasket 2108 through strong glue, the middle part of the inner side of the sealing groove 2107 is provided with the 2109, the front end of the outer side of the screw 2110 passes through the second, the inner side of the sealing groove 2107 is inserted into the connecting flange 10, the inner side of the fixing device 2102 is fixedly connected with the middle part of the outer side of the feeding pipe 9, and the motor 4 is electrically connected with an external power line 7 through a switch 6.

The fixing device 2102 comprises a top frame 21021, a fixing screw 21022, a bottom frame 21023 and a sleeve head 21024, wherein the front end and the rear end of the bottom of the top frame 21021 are in threaded connection with the front end and the rear end of the top of the bottom frame 21023 through the fixing screw 21022, the top of the top frame 21021 is welded with the bottom of the sleeve head 21024, and the inner side of the sleeve head 21024 is fixedly connected with the bottom of a round shaft 2101.

Wherein the bearing 15 and the shaft cover 16 are respectively located inside the first housing 2 and the second housing 3, and the bearing 15 and the shaft cover 16 are respectively fixedly connected with the first housing 2 and the second housing 3.

Wherein, the surface of magnet circle 2109 is smooth surface, and magnet circle 2109 thickness is 2.5 MM.

The inner structure of the sealing groove 2107 is consistent with the outer structure of the connecting flange 10, and the inner diameter of the sealing groove 2107 is larger than the outer dimension of the connecting flange 10.

The thickness of the sealing gasket 2108 is 3MM, and the gap distance between the sealing gasket 2108 and the contact surface of the connecting flange 10 is less than 0.1 MM.

The circular shaft 2101 has a cylindrical structure, and the length of the circular shaft 2101 is 16 CM.

The gasket 2108 is made of rubber and has good elasticity.

The spring 2112 is made of carbon steel, and is high in hardness and corrosion resistance.

The screw 2110 and the fixing screw 21022 are cylinders with spiral grooves on the outer sides, and can perform relative movement on objects matched with the spiral grooves, and the spring 2112 is an elastic body for storing mechanical energy, and can control the movement of a machine member, alleviate impact or vibration, store energy and measure the magnitude of force by using the elasticity of the elastic body, and is widely used in machines and instruments.

The working principle is as follows: when the device is used, the device is placed at a proper position, the base 1 and the placing plate 5 are in close contact with a placing surface, then the external power wire 7 is powered on, then the external pipeline is connected with the connecting flange 10, so that materials on the external pipeline are conveyed into the feed inlet 11, when the device is connected, the nut 2111 can be rotated by the anticlockwise rotating force, the nut 2111 is rotated down at the screw 2110, the screw 2110 cancels the connection and fixation of the first sealing plate 2105 and the second sealing plate 2106, the front end of the screw 2110 is separated from the first sealing plate 2105, then the first sealing plate 2105 and the second sealing plate 2106 are pulled by the pulling force of the front end and the rear end, the first sealing plate 2105 and the second sealing plate 2106 are respectively overturned and opened on the round shaft 2101 by the second rotating plate 2103, the bottom of the external pipeline can be placed on the connecting flange 10, then the bottom of the external pipeline is fixedly connected with the top of the connecting flange 10 by the external bolt, pulling the first sealing plate 2105 and the second sealing plate 2106 by a pulling force to make the first sealing plate 2105 and the second sealing plate 2106 turn over and close on the circular shaft 2101 by the second rotating plate 2104 and the first rotating plate 2103, respectively, inserting the sealing groove 2107 therein with the outside of the bottom of the external pipe and the outside of the connecting flange 10, making the magnet ring 2109 magnetically adsorb outside the joint, closing the gap at the joint, and closely contacting the top and the bottom of the joint by the sealing gasket 2108, isolating the outside air and reducing the gap distance of contact, then, making the front end of the screw 2110 pass through the second sealing plate 2106 and the first sealing plate 2105 in sequence to be connected with the nut 2111 by a thread, making the spring 2112 contract, increasing the pretightening force of the screw 2110, then screwing the nut into the screw 2110 by a clockwise rotating force to make the first sealing plate 2105 and the second sealing plate 2106 closely contact, when the device is used, the fixing screw 21022 is rotated by counterclockwise rotating force to ensure that the fixing screw 21022 is screwed out of the top frame 21021 and the bottom frame 21023, then the inner sides of the top frame 21021 and the bottom frame 21023 are placed on the feeding pipe 9, the fixing screw 2102 is rotated by clockwise rotating force to ensure that the top frame 21021 and the bottom frame 21023 are fixed on the feeding pipe 9, the top frame 21021 can provide a supporting effect for the round shaft 2101 by a sleeve head 21024, after all the devices are installed, the switch 6 can be pressed down to ensure that the motor 4 drives the transmission shaft 14 to rotate, the transmission shaft 14 respectively drives the middle shaft 18 to roll in the first shell 2 and the second shell 3 through the bearing 15 and the shaft cover 16, and the transmission shaft 14 drives the middle shaft 18 to stir and roll in the feeding pipe 9 through the rotation of the universal joint 17, make jackshaft 18 right-hand member pass through universal joint 17 and drive rotor 19 and roll in stator 12, when the material from the outer pipeline on from feed inlet 11 fall into inlet pipe 9 in, alright in order to transmit the material from the inlet pipe 9 to stator 12 in with the rotation of jackshaft 18 and rotor 19 to in transmitting discharge gate 20 in the stator 12, accomplish the operation, when not using, press switch 6 again, make the device outage and stop the operation.

The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a screw pump that leakproofness is strong, includes base (1), first casing (2), second casing (3), motor (4), places board (5), switch (6), external power supply line (7), backup pad (8), inlet pipe (9), flange (10), feed inlet (11), stator (12), pull rod (13), transmission shaft (14), bearing (15), shaft seal lid (16), universal joint (17), jackshaft (18), rotor (19) and discharge gate (20), its characterized in that: the sealing device comprises a base (1), a first shell (2) and a second shell (3) are fixedly connected with the left end of the upper end face of the base (1) from left to right in sequence, a motor (4) is fixedly connected with the first shell (2), the bottom of the motor (4) is in bolt connection with a placing plate (5), a switch (6) and an external power line (7) are sequentially arranged on the left side of the motor (4) from top to bottom, the bottom of a supporting plate (8) is welded with the middle of the upper end face of the base (1), the left end and the right end of an inlet pipe (9) are fixedly connected with the first shell (2) and the supporting plate (8) respectively, the bottom of a connecting flange (10) is fixedly connected with the left end of the upper end face of the inlet pipe (9), a feed inlet (11) is arranged in the middle of the upper end face of the connecting flange (10), the left end of a stator (12), the right end of a stator (12) is fixedly connected with the top of the right end of a base (1), the left end and the right end of a pull rod (13) are respectively welded with a placing plate (5) and the base (1), the middle part of the right side of a motor (4) penetrates through a first shell (2) to be fixedly connected with a transmission shaft (14), the middle part of the outer side of the transmission shaft (14) is in rolling connection with a bearing (15), the right end of the outer side of the transmission shaft (14) is in rolling connection with a shaft sealing cover (16), the right end of the transmission shaft (14) penetrates through the first shell (2) and a second shell (3) to be fixedly connected with the left end of a universal joint (17), the middle part of the right side of the universal joint (17) is fixedly connected with an intermediate shaft (18), the right end of the intermediate shaft (18) is fixedly connected with the left end of a rotor (19) through the universal joint (17), a discharge hole (20) is arranged in, the sealing device (21) consists of a round shaft (2101), a fixing device (2102), a first rotating plate (2103), a second rotating plate (2104), a first sealing plate (2105), a second sealing plate (2106), a sealing groove (2107), a sealing gasket (2108), a magnet ring (2109), a screw (2110), a nut (2111) and a spring (2112), wherein the bottom of the round shaft (2101) is fixedly connected with the top of the fixing device (2102), the top and the bottom of the outer side of the round shaft (2101) are respectively and rotatably connected with the first rotating plate (2103) and the second rotating plate (2104), the rear end of the first rotating plate (2103) and the front end of the second rotating plate (2104) are respectively and rotatably connected with the right side of the first sealing plate (2105) and the second sealing plate (2106), the top and the bottom of the inner sides of the first sealing plate (2105) and the second sealing plate (2106) are provided with the sealing groove (2107), and the top of the inner side of the sealing groove (2107) are connected with the sealing, seal groove (2107) inboard middle part is provided with magnet circle (2109), screw rod (2110) outside front end passes second closing plate (2106) and first closing plate (2105) left end and nut (2111) threaded connection in proper order, screw rod (2110) outside middle part is provided with spring (2112), seal groove (2107) inboard is pegged graft with flange (10), fixing device (2102) inboard and inlet pipe (9) outside middle part fixed connection, motor (4) are connected with external power supply line (7) electricity through switch (6).

2. A screw pump according to claim 1, wherein: fixing device (2102) are by top frame (21021), set screw (21022), underframe (21023) and pullover (21024), both ends are through set screw (21022) and underframe (21023) top front and back both ends threaded connection around top frame (21021) bottom, top frame (21021) top and pullover (21024) bottom weld, pullover (21024) inboard and round axle (2101) bottom fixed connection.

3. A screw pump according to claim 1, wherein: the bearing (15) and the shaft sealing cover (16) are respectively positioned inside the first shell (2) and the second shell (3), and the bearing (15) and the shaft sealing cover (16) are respectively fixedly connected with the first shell (2) and the second shell (3).

4. A screw pump according to claim 1, wherein: the surface of the magnet ring (2109) is smooth, and the thickness of the magnet ring (2109) is 2.5 MM.

5. A screw pump according to claim 1, wherein: the structure of the inner side of the sealing groove (2107) is consistent with the structure of the outer side of the connecting flange (10), and the inner diameter of the sealing groove (2107) is larger than the outer side of the connecting flange (10).

6. A screw pump according to claim 1, wherein: the thickness of the sealing gasket (2108) is 3MM, and the gap distance between the sealing gasket (2108) and the contact surface of the connecting flange (10) is less than 0.1 MM.

7. A screw pump according to claim 1, wherein: the circular shaft (2101) has a cylindrical structure, and the length of the circular shaft (2101) is 16 CM.