CN117231496A - Single-screw quick maintenance type screw pump - Google Patents

Abstract

The application provides a single-screw quick maintenance type screw pump, and mainly relates to the technical field of screw pumps. The utility model provides a quick maintenance formula screw pump of single screw rod, includes connecting axostylus axostyle, universal joint subassembly, stator and rotor subassembly, movable housing, direct connection, tee bend, maintenance pipeline, hoist and mount subassembly, base, complete screw thread screw rod and adjusting nut, stator and rotor subassembly includes outlet flange, pull rod, flange, stator, stabilizer blade and rotor; the rotor is connected with the motor in a rotating mode, the connecting rod is connected with the rotor through a universal joint assembly, the straight-through and the tee joint are connected through a first bolt, and the movable shell is connected with the straight-through a full-thread screw rod and an adjusting nut. The application has the beneficial effects that: the device is simple in structure, adopts a combined form for assembly, and can be used for independently replacing and maintaining the vulnerable parts, so that the working efficiency is improved, and the labor cost and the labor intensity are reduced.

Description

Single-screw quick maintenance type screw pump

Technical Field

The application mainly relates to the technical field of screw pumps, in particular to a single-screw quick maintenance type screw pump.

Background

Screw pumps are also known as screw pumps, "screw water lifts," archimedes screw pumps. A pump for making water body rise along axial spiral shape by using the rotation of spiral blade. Consists of a shaft, a helical blade and a shell. When pumping water, the pump is placed in water in an inclined way, so that the inclination angle of the main shaft of the water pump is smaller than that of the spiral blade, and the lower end of the spiral blade is contacted with water. When the prime mover drives the screw pump shaft to rotate through the speed changing device, water enters the blades and rises along the screw type flow channel until the water flows out. Simple structure, easy manufacture, large flow, small head loss, high efficiency, convenient maintenance, low lift, low rotation speed and the need of a speed change device. The device is mainly used for irrigation, drainage and other occasions such as sewage, sludge lifting.

The single-screw pump in the prior art, in particular to a large-flow single-screw pump, has large volume and heavy weight, the shell structures are all axially connected in series, the shell of the whole pump cannot be opened quickly, and the internal rotating parts are difficult to overhaul; and when overhauling or changing vulnerable parts, the screw pump is detached from one end of the speed reducer or is detached from one end of the stator, 4-5 people are about to dry for 1-2 days, the efficiency and the labor cost are high, the assembly quality is low, and the screw pump is unstable in the working process due to the fact that the motor vibrates greatly.

Disclosure of Invention

The application provides a single-screw quick maintenance type screw pump for overcoming the defects of the prior art, and provides a single-screw quick maintenance type screw pump which is more convenient to overhaul and replace vulnerable parts, so that the working efficiency is improved, and the labor cost and the labor intensity are reduced.

The application aims to achieve the aim, and the aim is achieved by the following technical scheme:

the utility model provides a quick maintenance formula screw pump of single screw rod, includes connecting axostylus axostyle, universal joint subassembly, stator and rotor subassembly, movable housing, direct connection, tee bend, maintenance pipeline, hoist and mount subassembly, base, complete screw thread screw rod and adjusting nut, stator and rotor subassembly includes outlet flange, pull rod, flange, stator, stabilizer blade and rotor; the rotor is connected with the motor in a rotating mode, the connecting shaft rod is connected with the rotor through the universal joint assembly, the straight through and the tee joint are connected through a first bolt, the movable shell is connected with the straight through all-screw threaded rods and adjusting nuts, the movable shell is connected with a connecting flange of the stator-rotor assembly through inner hexagon bolts, an outlet flange of the stator-rotor assembly is connected with an overhaul pipeline through a second bolt, support legs of the stator-rotor assembly are connected with a base through support leg bolts, the pipe diameter of the movable shell is larger than that of the straight through pipe diameter and is sleeved outside the straight through, two all-screw threaded rods are arranged on the movable shell and the straight through diagonally, four adjusting nuts are arranged on each all-screw threaded rod, and the movable shell moves back and forth outside the straight through screwing and unscrewing the four adjusting nuts.

Preferably, the movable housing is sealed with the connecting flange by a rubber elastomer between the movable housing and the straight-through, and between the straight-through and the tee.

Preferably, the universal joint assembly comprises an O-shaped ring, a pin shaft sheath positioning screw, a framework sheath, a binding belt, a pin shaft, a guide sleeve and a connecting rod bushing; the skeleton sheath is made of rubber elastomer, the skeleton sheath is directly inserted on the rotor, a clamping groove is formed in the straight line cooperation between the skeleton sheath and the rotor, the pin shaft sheath adopts a gland structure, the pin shaft sheath presses the skeleton sheath and the O-shaped ring after the skeleton sheath is well matched with the rotor, the pin shaft sheath positioning screw fixes the pin shaft sheath, and the lubricating oil in the universal joint is sealed by the binding tape at the other end.

Preferably, the hoisting assembly comprises a bearing box end cover, a bearing, a bushing, a bearing box, a hoisting frame and a locking bolt, wherein the bearing box is pre-buried underground, the hoisting frame is fast-assembled, the hoisting frame is inserted into the bushing and screwed down the locking bolt when in use, the bearing box is internally provided with the bearing, and the hoisting frame can rotate in a degree.

Preferably, still include damper, damper includes supporting seat and gag lever post, the supporting seat is top surface open-ended box body structure, the supporting seat sets up in the below of base, be equipped with the buffer block between base and the supporting seat, the front and back both sides of base are fixed mounting connecting plate respectively, the first through-hole of several evenly distributed branch is seted up respectively on the connecting plate, the second through-hole with first through-hole one-to-one is seted up respectively to the top surface of buffer block, the jack of several and second through-hole one-to-one is seted up respectively to the front and back both sides of supporting seat top surface, the recess is seted up respectively at the front and the back of supporting seat, the jack is all vertically link up corresponding recess, the gag lever post passes corresponding first through-hole, second through-hole, jack in proper order from top to bottom and extends to corresponding recess in, the upper end fixed mounting of gag lever post has the baffle, the ring channel has been seted up to the lower part of gag lever post periphery, all be equipped with corresponding limiting plate in the recess, the draw-in groove with the corresponding contact of the top surface and the ring channel of the top surface of limiting plate.

Preferably, the buffer block is a rubber block.

Preferably, the bottom surface of supporting seat inner wall is fixed mounting has spring damping bumper shock absorber, the expansion end of spring damping bumper shock absorber and the bottom surface fixed connection of base inner wall.

Preferably, the sleeve is fixedly installed on two sides of the bottom surface of the inner wall of the supporting seat respectively, the guide rod is installed in the sleeve in a sliding fit mode, and the upper end of the guide rod is fixedly connected with the bottom surface of the inner wall of the base.

Preferably, the front and the back of the supporting seat are respectively and fixedly provided with a plurality of strip-shaped plates through bolts, and the outer sides of the limiting plates are respectively in contact fit with the inner sides of the corresponding strip-shaped plates.

Compared with the prior art, the application has the beneficial effects that:

1. the device is simple in structure, adopts a combined form for assembly, and can be used for independently replacing and maintaining the vulnerable parts, so that the working efficiency is improved, and the labor cost and the labor intensity are reduced.

2. The device can realize the damping effect to the device through damper, slows down the vibration effect through the buffer block to can realize the shock attenuation to the device through spring damping bumper shock absorber, utilize spring damping bumper shock absorber to absorb vibrations, convert the energy of vibrations partly into spring damping bumper shock absorber acting and consume, further reduce vibrations, guarantee the stationarity of single screw pump work.

Drawings

FIG. 1 is a schematic diagram of the structure of the present application;

FIG. 2 is a front view of the present application;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is an enlarged view of a portion of FIG. 2;

FIG. 6 is an enlarged view of a portion of FIG. 3;

FIG. 7 is an enlarged view of a portion of FIG. 4;

FIG. 8 is a general exploded view of the screw pump of the present application;

FIG. 9 is an exploded view of the gimbal assembly of the present application;

FIG. 10 is a plan view of a gimbal assembly of the present application.

Detailed Description

The application will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the application, and equivalents thereof fall within the scope of the application as defined by the claims.

Examples: single-screw quick maintenance type screw pump

As shown in fig. 1 to 10, a single screw rapid maintenance screw pump has a specific structure comprising:

the device comprises a connecting shaft rod 1, a universal joint assembly, a stator and rotor assembly, a movable shell 15, a straight through 12, a tee joint 11, an overhaul pipeline 33, a hoisting assembly, a base 21, a full threaded screw rod 22 and an adjusting nut 23, wherein the stator and rotor assembly comprises an outlet flange 19, a pull rod 25, a connecting flange 16, a stator 18, supporting legs 20 and a rotor 7; the rotor 7 is connected with a motor in a rotating mode, the connecting rod 1 is connected with the rotor 7 through a universal joint assembly, the straight through 12 is connected with the tee joint 11 through a first bolt 24, the movable shell 15 is connected with the straight through 12 through full-threaded screws 22 and adjusting nuts 23, the movable shell 15 is connected with a connecting flange 16 of a stator-rotor assembly through inner hexagonal bolts 26, an outlet flange 19 of the stator-rotor assembly is connected with an overhaul pipeline 33 through a second bolt 34, a support leg 20 of the stator-rotor assembly is connected with a base 21 through a support leg bolt 27, the pipe diameter of the movable shell 15 is larger than that of the straight through 12 and is sleeved outside the straight through 12, two full-threaded screws 22 are obliquely arranged on the movable shell 15 and the straight through 12, four adjusting nuts 23 are arranged on each full-threaded screw 22, and the movable shell 15 is moved back and forth outside the straight through 12 by screwing and unscrewing the four adjusting nuts 23.

Further, between the movable housing 15 and the through 12, between the through 12 and the tee 11, between the movable housing 15 and the connecting flange 16 is sealed by rubber elastomer.

Further, the universal joint assembly comprises an O-shaped ring 6, a pin shaft sheath 9, a pin shaft sheath positioning screw 10, a framework sheath 4, a binding belt 8, a pin shaft 5, a guide sleeve 3 and a connecting rod bushing 2; the framework sheath 4 is made of rubber elastomer, the framework sheath 4 is directly inserted onto the rotor 7, clamping grooves are formed in the two parts in a linear fit mode, the pin shaft sheath 9 is of a gland type structure, after the framework sheath 4 is matched with the rotor 7, the pin shaft sheath 9 is pressed on the framework sheath 4 and the O-shaped ring 6, the pin shaft sheath positioning screw 10 is used for fixing the pin shaft sheath 9, and the lubricating oil in the universal joint is sealed by the binding belt 8 at the other end of the pin shaft sheath.

Further, the hoisting assembly is composed of a bearing box end cover 32, a bearing 30, a bushing 29, a bearing box 28, a hoisting frame 31 and a locking bolt 35, wherein the bearing box 28 is pre-buried underground, the hoisting frame 31 is in a fast-assembling type, the hoisting frame 31 is inserted into the bushing 29 when in use, the locking bolt 35 is screwed down, the bearing 30 is arranged in the bearing box 28, and the hoisting frame 31 can rotate by 360 degrees.

Further, still include damper, damper includes supporting seat 36 and gag lever post 41, supporting seat 35 is the box body structure of top surface opening, supporting seat 36 sets up in the below of base 21, be equipped with buffer block 37 between base 21 and the supporting seat 36, the front and back both sides of base 21 are fixed mounting connecting plate 50 respectively, set up several evenly distributed on the connecting plate 50 and divide first through-hole 51 respectively, the second through-hole 38 with first through-hole 51 one-to-one is seted up respectively to buffer block 37's top surface, the front and back both sides of supporting seat 36 top surface are seted up several respectively with second through-hole 38 one-to-one jack 39, recess 40 is seted up respectively at the front and the back of supporting seat 36, jack 39 all vertically link up corresponding recess 40, gag lever post 41 is from top to bottom through corresponding first through-hole 51, second through-hole 38, jack 39 and extend to corresponding recess 40 in proper order, the upper end fixed mounting of gag lever post 42 has the circular structure of flapper 42, the diameter of flapper 42 is greater than the diameter of first through-hole 51, the top surface of the flapper plate 40 has the corresponding recess 44, the limit plate 44 has the corresponding recess 44 of the top surface of the cooperation with the corresponding groove 44, the top surface of the lower plate 43 has the corresponding groove 44. This structural design is when using, through carrying out fixed connection with base 21 and supporting seat 36, use buffer block 37 to separate base 21 and supporting seat 36, buffer block 37 possesses corresponding elasticity and can slow down the vibration of base 21, stop lever 41 carries out the joint with corresponding limiting plate 44, the installation of limiting plate 44 of being convenient for, limiting plate 44 can reciprocate in corresponding recess 40 along with the vibration of base 21, thereby for base 21 provides corresponding movable space, the vibration of base 21 is weakened through buffer block 37 deformation acting, make base 21 more stable, facilitate the use.

Further, the buffer block 37 is a rubber block. The rubber block has good elastic performance and buffering effect, is low in cost and convenient to replace, and can improve the reliability of the device.

Further, a spring damping shock absorber 46 is fixedly installed on the bottom surface of the inner wall of the supporting seat 36, and the movable end of the spring damping shock absorber 46 is fixedly connected with the bottom surface of the inner wall of the base 21. The spring damping shock absorber is used by combining a damping spring and a rubber vibration damping pad, has the advantages of composite vibration isolation and noise reduction, low natural frequency, good vibration isolation effect and the like, and can improve the shock absorption effect of the device and enable the base 21 to be more stable.

Further, the two sides of the bottom surface of the inner wall of the supporting seat 36 are respectively and fixedly provided with a sleeve 47, a guide rod 48 is slidably mounted in the sleeve 47, and the upper end of the guide rod 48 is fixedly connected with the bottom surface of the inner wall of the base 21. This structural design can play the limiting displacement to base 21 when using, avoids base 21 and supporting seat 36 to take place the dislocation, can reduce the radial atress of gag lever post 41, prevents that gag lever post 41 from damaging, improves the reliability of this device.

Further, the front and rear sides of the supporting seat 36 are respectively and fixedly provided with a plurality of strip-shaped plates 49 by bolts, and the outer sides of the limiting plates 44 are respectively in contact fit with the inner sides of the corresponding strip-shaped plates 49. When the structure is used, the strip-shaped plate 49 can form corresponding blocking on the outer side of the corresponding groove 40, so that the limiting plate 44 is prevented from slipping in the use process, and the reliability of the device is improved.

The movable housing 20 and the straight-through 12 are sealed by a triangular O-shaped ring 14, the straight-through 12 and the tee joint 11 are sealed by an O-shaped ring 13, and the movable housing 15 and the connecting flange 16 are sealed by an O-shaped ring 17. The hexagon socket head cap bolts 26 are removed to separate the connecting flange 16 from the movable housing 15. Two full threaded screws 22 are diagonally positioned on the movable housing 15 and the through 12. Four adjusting nuts 23 are provided on each full-threaded screw 22, and the movable housing 15 is moved over the through 12 by loosening the four adjusting nuts 23 by the tightening stage, so that the pump housing is opened to expose the universal joint assembly therein.

The universal joint assembly adopts a gland type and consists of an O-shaped ring 6, a pin shaft sheath 9, a pin shaft sheath positioning screw 10, a framework sheath 4, a binding belt 8, a pin shaft 5, a guide sleeve 3 and a connecting rod bushing 2. The framework sheath 4 is made of rubber elastomer and is directly inserted onto the rotor 7, and the framework sheath is matched with the rotor in a straight line without clamping grooves, so that the framework sheath is more convenient to assemble, disassemble and maintain. The pin shaft sheath 9 is sealed by a gland, when the skeleton sheath 4 is matched with the rotor 7, the pin shaft sheath 9 is pressed on the skeleton sheath 4 and the O-shaped ring 6, the pin shaft sheath is fixed by the pin shaft sheath positioning screw 10, and lubricating oil in the universal joint is sealed by the binding belt 8 at the other end, so that the structure is more convenient to assemble and disassemble. When the housing is opened, the joint assembly is removed from the pin 5, and the connecting rod 1 is inserted into the rotor 7. At this time, the service pipe 33 is removed, the leg bolts 27 are moved toward the service pipe to completely separate the connecting rod 1 from the rotor 7.

When the stator and rotor components are moved, the stator and rotor components are heavy, and the overhaul space is limited, so that manual movement is very troublesome. The assembly can then be lifted up. The hoisting assembly consists of a bearing box end cover 32, a bearing 30, a bushing 29, a bearing box 28, a hoisting frame 31 and a locking bolt 35. The bearing box 28 is buried underground and fixed. The hoisting frame 31 is quick-assembled, when in use, the hoisting frame 31 is inserted into the bushing 28 to screw the locking bolt 35, after maintenance, the locking bolt 35 is loosened, and the hoisting frame 31 is pulled out and removed, so that the space is not occupied. The bearing box is internally provided with a bearing 30, and the lifting frame 31 can rotate 360 degrees. And lifting the stator and rotor assembly to a space convenient to overhaul.

And the stator and rotor components are hoisted to a space convenient to overhaul through the hoisting component. When the stator or the rotor needs to be replaced, the stator and the rotor are usually locked by the pump conveying medium, the stator is a cylinder which is difficult to fix, and the stator and the rotor are difficult to separate. The stator and rotor assembly is a single integral body formed by an outlet flange 19, a pull rod 25, a connecting flange 16, a stator 18, support legs 20 and a rotor 7. The stator 18 is tightly locked by four tie rods 25 and outlet flange 19, connecting flange 16, and is supported by two legs 20 to facilitate the fixing of the stator and rotor assembly in a plane. A round bar is inserted into a pin shaft hole of the rotor, and the stator and the rotor can be separated quickly by forcefully rotating, so that the quick overhaul is facilitated.

In the explanation of the present application, it should be noted that the term "azimuth" is merely for convenience of description and understanding, and does not limit the installation position of specific technical features uniquely, but does not exclude other installation manners that can be implemented.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. The utility model provides a quick maintenance formula screw pump of single screw rod, includes connecting axostylus axostyle (1), universal joint subassembly, stator and rotor subassembly, movable casing (15), straight-through (12), tee bend (11), maintenance pipeline (33), hoist and mount subassembly, base (21), complete screw bolt (22) and adjusting nut (23), its characterized in that: the stator and rotor assembly comprises an outlet flange (19), a pull rod (25), a connecting flange (16), a stator (18), support legs (20) and a rotor (7); the rotor (7) is connected with the motor in a rotating mode, the connecting rod (1) is connected with the rotor (7) through a universal joint assembly, the straight through (12) is connected with the tee joint (11) through a first bolt (24), the movable shell (15) is connected with the straight through (12) through a full-threaded screw rod (22) and an adjusting nut (23), the movable shell (15) is connected with a connecting flange (16) of the stator-rotor assembly through an inner hexagon bolt (26), an outlet flange (19) of the stator-rotor assembly is connected with an overhaul pipeline (33) through a second bolt (34), a supporting leg (20) of the stator-rotor assembly is connected with a base (21) through a supporting leg bolt (27), the pipe diameter of the movable shell (15) is larger than that of the straight through (12) and sleeved outside the straight through (12), four adjusting nuts (23) are obliquely arranged on the movable shell (15) and the straight through (12), four adjusting nuts (23) are arranged on each full-threaded screw rod (22), and the movable shell (15) can be loosened before the moving through the adjusting nut (23).

2. A single screw rapid maintenance screw pump according to claim 1, wherein: the movable shell (15) is sealed with the connecting flange (16) through a rubber elastomer between the movable shell (15) and the straight-through (12), and between the straight-through (12) and the tee joint (11).

3. A single screw rapid maintenance screw pump according to claim 1, wherein: the universal joint assembly comprises an O-shaped ring (6), a pin shaft sheath (9), a pin shaft sheath positioning screw (10), a framework sheath (4), a binding belt (8), a pin shaft (5), a guide sleeve (3) and a connecting rod bushing (2); the framework sheath (4) is made of rubber elastomer, the framework sheath (4) is directly inserted onto the rotor (7), a clamping groove is formed in a straight line matched mode, the pin shaft sheath (9) is of a gland type structure, after the framework sheath (4) is matched with the rotor (7), the pin shaft sheath (9) is pressed on the framework sheath (4) and the O-shaped ring (6), the pin shaft sheath positioning screw (10) is used for fixing the pin shaft sheath (9), and the ribbon (8) at the other end seals lubricating oil in the universal joint.

4. A single screw rapid maintenance screw pump according to claim 1, wherein: the hoisting assembly comprises a bearing box end cover (32), a bearing (30), a bushing (29), a bearing box (28), a hoisting frame (31) and a locking bolt (35), wherein the bearing box (28) is embedded underground, the hoisting frame (31) is fast-assembled, the hoisting frame (31) is inserted into the bushing (29) during use, the locking bolt (35) is screwed down, the bearing box (28) is internally provided with the bearing (30), and the hoisting frame (31) can rotate by 360 degrees.

5. A single screw rapid maintenance screw pump according to claim 1, wherein: still include damper, damper includes supporting seat (36) and gag lever post (41), supporting seat (35) are top surface open-ended box body structure, supporting seat (36) set up in the below of base (21), be equipped with buffer block (37) between base (21) and supporting seat (36), the front and back both sides of base (21) are fixed mounting connecting plate (50) respectively, set up a plurality of evenly distributed first through-hole (51) respectively on connecting plate (50), second through-hole (38) with first through-hole (51) one-to-one are seted up respectively to the top surface of buffer block (37), the front and back both sides of supporting seat (36) top surface are offered a plurality of jack (39) with second through-hole (38) one-to-one respectively, recess (40) are offered respectively at the front and the back of supporting seat (36), corresponding recess (40) are all vertically link up to jack (39), gag lever post (41) are passed corresponding first through-hole (51), second through-hole (38) respectively and corresponding jack (39) and are equipped with limit plate (40) in proper order by last limit baffle (41) are all set up to limit plate (41) in proper order, the top surface of limiting plate (44) has seted up several draw-in grooves (45) that match with ring channel (43), the top surface of limiting plate (44) and the top surface contact cooperation of corresponding recess (40).

6. A single screw rapid maintenance screw pump according to claim 5, wherein: the buffer block (37) is a rubber block.

7. A single screw rapid maintenance screw pump according to claim 5, wherein: the bottom surface of supporting seat (36) inner wall fixed mounting has spring damping bumper shock absorber (46), the expansion end of spring damping bumper shock absorber (46) is connected with the bottom surface fixed of base (21) inner wall.

8. A single screw rapid maintenance screw pump according to claim 5, wherein: the two sides of the bottom surface of the inner wall of the supporting seat (36) are respectively fixedly provided with a sleeve (47), a guide rod (48) is mounted in a sliding fit manner in the sleeve (47), and the upper end of the guide rod (48) is fixedly connected with the bottom surface of the inner wall of the base (21).

9. A single screw rapid maintenance screw pump according to claim 5, wherein: the front and the back of the supporting seat (36) are respectively fixedly provided with a plurality of strip-shaped plates (49) through bolts, and the outer sides of the limiting plates (44) are respectively in contact fit with the inner sides of the corresponding strip-shaped plates (49).