CN110259695B

CN110259695B - Strong discharge pump for soft foundation treatment

Info

Publication number: CN110259695B
Application number: CN201910714051.3A
Authority: CN
Inventors: 郑文珊
Original assignee: Dongguan Jinjianda Construction Co ltd
Current assignee: Dongguan Jinjianda Construction Co ltd
Priority date: 2019-08-03
Filing date: 2019-08-03
Publication date: 2021-04-09
Anticipated expiration: 2039-08-03
Also published as: CN110259695A

Abstract

The invention relates to a forced-ventilated pump for soft foundation treatment, which comprises a base, a motor arranged on the base, a pump shell and an impeller arranged in the pump shell, wherein a pump shaft is coaxially fixed on the impeller, a first fixed disk and a second fixed disk are respectively and coaxially arranged on the pump shaft and an output shaft of the motor, a plurality of groups of limiting holes are respectively and correspondingly arranged on the first fixed disk and the second fixed disk, nylon rods are inserted into the limiting holes corresponding to the first fixed disk and the second fixed disk, the nylon rods are arranged in parallel with the pump shaft, and limiting parts for limiting the nylon rods are also arranged in the limiting holes. The invention has the advantages that when the motor is blocked, the motor is disconnected with the pump shaft, and the motor is not damaged.

Description

Strong discharge pump for soft foundation treatment

Technical Field

The invention relates to the technical field of soft foundation treatment, in particular to a forced-ventilated pump for soft foundation treatment.

Background

At present, if the foundation is not firm enough before construction, in order to prevent accidents such as unstable buildings and the like caused by sinking and pulling crack of the foundation after construction, the soft foundation needs to be treated, so that the settlement of the soft foundation becomes firm enough, the consolidation degree and stability of the soft foundation are improved to meet the design requirement, and the process is called soft foundation treatment.

The traditional Chinese patent with the publication number of CN204691673U discloses a soft foundation mud protection rotary drilling rig, which comprises a rotary drilling rig, a steel casing and a mud circulation system, wherein the top of a mast is jointed with a guide plate and a pulley block, the middle parts of the top of a drill rod and the mast are also provided with the pulley block, a drill bit is of a double-sleeve structure and comprises an inner sleeve, an outer sleeve, a connecting plate arranged between the inner sleeve and the outer sleeve, a cross-shaped supporting plate arranged in the inner sleeve, a material collecting port which is of a central symmetry structure and is positioned at the lower end part of the inner sleeve and the outer sleeve, and a crushing drill bit arranged at the periphery of the material collecting port, and the connecting plate is of a multi-section. The utility model has the advantages of reasonable design, its mud pumping system can carry out reasonable quenching and tempering mud to the topography of difference for the soil sediment can come up and slag tap, prevents simultaneously that mud from gluing the reinforcing bar protecting wire net, avoids leading to the fact the influence to pouring in later stage.

In the prior art, a seat type slurry pump disclosed in CN2385109U is generally adopted, which includes a driving motor, a coupling for coupling an output shaft of the motor with a pump shaft, a machine base with a motor support frame, a pump housing, and an impeller; the two sides of the machine base are connected with detachable floating plates, and handles are arranged on the floating plates. The blade of the impeller is in a stair step-like shape along the axial section of the pump shaft. Because the utility model can float on the surface of the slurry, the slurry can be extracted anywhere in the fishpond, the pond sludge in the middle part of the fishpond is not required to be raked to the slurry pump by manpower, the sludge pump has the advantages of saving labor, time and water, and greatly improves the efficiency.

The above prior art solutions have the following drawbacks: the pump shaft is coaxially connected with an output shaft of the motor through the coupling, so that the motor drives the pump shaft to drive the impeller to rotate, and the conveying work of the slurry pump is realized; in a working environment, as the slurry pump discharges the slurry in the soft foundation, in the process of conveying the slurry, stones in the slurry are sucked into the pump shell at a high probability, and the stones easily block the impeller, so that the pump shell is blocked; when the pump case is internally blocked, the motor still works to drive the pump shaft to rotate, so that the motor is subjected to increased load and is easily damaged.

Disclosure of Invention

The invention aims to provide a forced-ventilated pump for soft foundation treatment, which has the advantages that when the pump is blocked, a motor is disconnected with a pump shaft, and the motor is prevented from being damaged.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a soft ground is handled with forced-ventilated pump, includes the frame, sets up motor, pump case on the frame and sets up the impeller in the pump case, the impeller coaxial pump shaft that is fixed with, on the output shaft of pump shaft and motor respectively coaxial be provided with fixed disk one, fixed disk two, correspond respectively on fixed disk one, the fixed disk two and seted up a plurality of groups spacing hole, the spacing downthehole interpolation that fixed disk one, fixed disk two correspond has the nylon stick, nylon stick and pump shaft parallel arrangement, spacing downthehole locating part that still is provided with spacing nylon stick.

By adopting the technical scheme, the nylon rods are inserted into the limiting holes of the first fixing disk and the second fixing disk, so that the synchronous rotation work of the pump shaft and the output shaft of the motor is realized, and when the motor is electrified to work, the pump shaft can be driven to drive the impeller to rotate, and the normal conveying work of the pump on slurry is realized; when the pump is blocked and the impeller cannot rotate, the motor still rotates and bears the torque force of the motor through the nylon rod, and when the torque force of the motor is too large, the nylon rod is firstly broken, so that the pump shaft is separated from the synchronous rotation work of the output shaft, the motor is driven to continue to normally operate, and the damage probability of the motor due to blockage is reduced; simultaneously when the nylon stick fracture, also be convenient for the staff learn the jam of slush pump, the staff can directly dredge stifled work to the slush pump.

The invention is further configured to: the limiting hole is arranged in an opening with one end communicated with the outer wall of the first fixed disk/the second fixed disk, the limiting piece comprises an elastic metal sheet with a U-shaped section, the metal sheet comprises a semicircular sheet and two straight sheets, and the joint of the straight sheets and the semicircular sheet is inwards bent to form a semicircular shape which is abutted against the outer wall of the nylon rod; two support legs extend from the two straight pieces respectively, and support grooves for the support legs to be inserted are formed in the first fixing disc/the second fixing disc respectively.

By adopting the technical scheme, the limiting holes are arranged in an opening manner, so that the nylon rods can be conveniently and directly inserted into the limiting holes of the first fixed disk and the second fixed disk from outside to inside; furthermore, because the connecting part of the straight piece and the semicircular ring piece is bent, the nylon rod is driven into the semicircular ring piece under the elastic action of the metal piece by the driving force of a worker, and then the metal piece is elastically reset to form a semi-circular shape abutting against the nylon rod, so that the nylon rod is limited in the limiting hole;

meanwhile, the two support legs on the metal sheet are inserted into the support grooves of the first fixed disk/the second fixed disk, so that the metal sheet and the first fixed disk/the second fixed disk can be detached.

The invention is further configured to: the pump shaft and the output shaft of the motor are respectively fixed with a first inserting block and a second inserting block with polygonal sections, the outer walls of the first inserting block and the second inserting block are smaller than the outer diameters of the pump shaft and the output shaft of the motor, and a first inserting groove and a second inserting groove which are matched with the first inserting block and the second inserting block in an inserting manner are respectively formed in the first fixed disc and the second fixed disc; one section external diameter is greater than the external diameter at both ends in the middle of the nylon stick, and one section length is the same with the interval between fixed disk one, the fixed disk two in the middle of the nylon stick.

By adopting the technical scheme, the first inserting block and the second inserting block are smaller than the pump shaft and the output shaft of the motor, so that after the first fixing disc and the second fixing disc are inserted into the first inserting block and the second inserting block, one ends of the first fixing disc and the second fixing disc are abutted with the pump shaft and the output shaft of the motor, and when the nylon rod is inserted into the limiting hole, the two ends of the larger section of the nylon rod are abutted with the inner sides of the first fixing disc and the second fixing disc, so that the first fixing disc and the second fixing disc are limited on the pump shaft and the output shaft of the motor, and the first fixing disc and the second fixing disc;

meanwhile, the first insertion groove and the second insertion groove are respectively in insertion fit with the first insertion block and the second insertion block, and the cross sections of the first insertion groove and the second insertion groove are arranged in a polygonal shape, so that the first fixed disk and the second fixed disk can respectively rotate synchronously with the pump shaft and the motor output shaft.

The invention is further configured to: the machine base is correspondingly provided with a protective cover, two ends of the nylon rod respectively extend out of the first fixed disk and the second fixed disk, two groups of limiting rings are respectively arranged at two ends of the protective cover corresponding to the nylon rod, and the inner walls of the limiting rings are simultaneously abutted against the outer walls of the nylon rods; every group the spacing ring comprises two semicircle rings, still be provided with the driving piece that orders about semicircle ring along pump shaft radial displacement on the safety cover.

By adopting the technical scheme, the protective cover is used for shielding the joint of the output shaft of the motor and the pump shaft, so that the joint can be protected;

and then utilize the driving piece to order about the semicircle ring along pump shaft radial displacement, make its two liang of adjacent semicircle ring motion in-process, want the butt to form complete spacing ring to spacing ring and all nylon stick outer wall butt simultaneously further improve the limiting displacement to the nylon stick, make its stable spacing in spacing hole.

The invention is further configured to: the driving piece includes lead screw, guide bar and hand wheel, the lead screw rotate connect on the protector and with semicircle ring screw-thread fit, the guide bar just is fixed in on the protector with lead screw parallel arrangement to supply the semicircle ring to peg graft, lead screw one end extends to outside the protection casing, the hand wheel is in the outer one end coaxial fixation of protection casing with the lead screw.

Through adopting above-mentioned technical scheme, utilize the guide effect of guide bar semicircle ring to and the screw-thread fit effect of lead screw and semicircle ring, order about the semicircle ring and only can be linear reciprocating motion, realize the spacing work of semicircle ring to the nylon rod.

The invention is further configured to: a limiting plate is fixedly connected between the two semi-circular rings at the same side of the radial direction of the pump shaft, the screw rod is in threaded fit with the limiting plate, and the guide rod penetrates through the limiting plate.

Through adopting above-mentioned technical scheme, utilize a limiting plate to be fixed in two semicircle rings integratively, and then utilize the screw-thread fit work of lead screw and limiting plate and the direction work of guide bar to the limiting plate, make it only need order about a lead screw and rotate, can realize the displacement work of two semicircle rings, be convenient for realize the spacing work to the nylon stick.

The invention is further configured to: and a gap is formed between the semicircular ring and the first fixed disk/the second fixed disk.

By adopting the technical scheme, the first fixed disk/the second fixed disk can rotate along with the output shaft, and the friction force generated by the semicircular ring on the first fixed disk/the second fixed disk can be avoided by utilizing the gap between the semicircular ring and the first fixed disk/the second fixed disk, so that the motor can drive the pump shaft to normally rotate.

The invention is further configured to: the protection casing upper end is the opening setting, opening one end articulates there is the closing plate, the opening other end is provided with the hasp piece of locking closing plate.

Through adopting above-mentioned technical scheme, utilize the closing plate upset in-process, can open the opening of protection casing upper end, the dismouting work of the staff of being convenient for to the nylon stick.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the nylon rod is inserted into the limiting hole of the first fixed disk/the second fixed disk to realize synchronous rotation work of the first fixed disk and the second fixed disk, so that the output shaft of the motor and the pump shaft rotate, the motor can drive the impeller to rotate, and normal conveying work of the mud pump is realized; when the impeller is blocked, the nylon rod firstly bears the torque force of the motor and is broken, so that the output shaft of the nylon rod is separated from the pump shaft, and the motor can independently rotate relative to the pump shaft, so that the damage of the motor caused by the blockage is avoided;

2. the first fixed disk and the second fixed disk are respectively inserted into the pump shaft and the output shaft of the motor, and one end of the first fixed disk is abutted to the pump shaft and the output shaft; meanwhile, the two ends of the middle section of the nylon rod are abutted against the inner sides of the first fixed disk and the second fixed disk, so that the first fixed disk and the second fixed disk are limited to move relative to the axial line of the pump shaft and the output shaft, and the effect of facilitating the dismounting of the first fixed disk and the second fixed disk is achieved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partial schematic view of the pump shaft and output shaft of fig. 1.

Fig. 3 is a front view of the first stationary disk of fig. 2.

Fig. 4 is an enlarged schematic view at a in fig. 3.

Fig. 5 is a partial schematic view of the drive member of fig. 2.

In the figure, 1, a machine base; 2. a motor; 3. a pump housing; 4. a pump shaft; 5. an output shaft; 6. a first fixed disc; 7. a second fixed disc; 8. a limiting member; 81. a semi-circular ring piece; 82. straightening; 83. a support leg; 9. a drive member; 91. a screw rod; 92. a guide bar; 93. a hand wheel; 10. a limiting hole; 11. supporting a groove; 12. a first plug-in block; 13. a second plug-in block; 14. a first inserting groove; 15. a second inserting groove; 16. a nylon rod; 17. a protective cover; 18. a semicircular ring; 19. a limiting plate; 20. and (3) closing the plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the forced-ventilated pump for soft foundation treatment disclosed by the invention comprises a base 1, wherein a motor 2 and a pump shell 3 are sequentially fixed on the base 1 through bolts, a pump shaft 4 is rotatably connected inside the pump shell 3, one end of the pump shaft 4, which is positioned inside the pump shell 3, is coaxially fixed with an impeller (not shown in the figure), and the other end of the pump shaft extends out of the pump shell 3 and is coaxially arranged with an output shaft 5 of the motor 2; a first fixed disk 6 and a second fixed disk 7 are coaxially arranged on the pump shaft 4 and the output shaft 5 respectively, and the nylon rods 16 are simultaneously inserted into the first fixed disk 6 and the second fixed disk 7, so that synchronous rotation work of the pump shaft 4 and the output shaft 5 is realized. In this embodiment, the motor 2 is connected to an external power source through a wire.

Referring to fig. 2 and 3, six limiting holes 10 are uniformly formed in the first fixed disk 6 and the second fixed disk 7 along the circumference respectively, and the limiting holes 10 are communicated with the outer walls of the first fixed disk 6 and the second fixed disk 7 and are arranged in an opening manner; six nylon rods 16 are correspondingly arranged, two ends of the six nylon rods are respectively inserted into the limiting holes 10 of the first fixed disk 6 and the second fixed disk 7, and the two nylon rods are limited in the limiting holes 10 by the limiting pieces 8.

Referring to fig. 2 and 4, the stopper 8 comprises a metal sheet made of a stainless steel sheet, which provides a strong elastic function. The metal sheet comprises a semi-circular sheet 81 and two straight sheets 82, the two straight sheets 82 are fixed with two sides of the opening end of the semi-circular sheet 81, and the fixed part is bent towards the inner side of the semi-circular sheet 81, so that the semi-circular sheet is in a semi-circular shape abutted against the nylon rod 16; two ends of one side of the two straight pieces 82, which is far away from the semi-circular ring piece 81, extend to form supporting legs 83 respectively, the supporting legs 83 and the straight pieces 82 are arranged in an inclined mode and incline towards one side, two ends of the thickness of the first fixed disk 6/the second fixed disk 7 are correspondingly provided with supporting grooves 11 communicated with the limiting holes 10 respectively, when the metal sheets are inserted into the limiting holes 10, the supporting legs 83 are correspondingly inserted into the supporting grooves 11, and the metal sheets and the limiting holes 10 cannot be separated. When the nylon rod 16 is inserted into the limiting hole 10, the nylon rod 16 is limited by the semi-circular shape formed between the semi-circular ring piece 81 and the straight piece 82.

The pump shaft 4 and the conveying shaft of the motor 2 are respectively and coaxially fixed with a first inserting block 12 and a second inserting block 13, the outer walls of the first inserting block 12 and the second inserting block 13 are respectively smaller than the outer diameters of the pump shaft 4 and the conveying shaft, and the lengths of the first inserting block 12 and the second inserting block 13 are respectively equal to the thicknesses of the first fixed disk 6 and the second fixed disk 7; the first fixed disk 6 and the second fixed disk 7 are respectively and coaxially provided with a first plugging groove 14 and a second plugging groove 15 for plugging the first plugging block 12 and the second plugging block 13; the sections of the first plug-in block 12, the second plug-in block 13, the first plug-in groove 14 and the second plug-in groove 15 are all regular hexagons. In this embodiment, the outer diameter of the middle section of the nylon rod 16 is larger than the outer diameters of the two ends, the outer diameters of the two ends of the nylon rod 16 are equal to the inner diameter of the semicircular ring piece 81, and the outer diameter of the middle section is larger than the inner diameter of the limiting hole 10; and when the first fixed disk 6 and the second fixed disk 7 are respectively inserted into the first insertion block 12 and the second insertion block 13 and are abutted to the pump shaft 4 and the output shaft 5, two ends of the middle section of the nylon rod 16 are respectively abutted to the side walls of the first fixed disk 6 and the second fixed disk 7.

Referring to fig. 2 and 5, since the mud pump is arranged outdoors to work, in order to protect the first fixed disk 6 and the second fixed disk 7, a protective cover 17 is fixed on the base 1 through bolts, and the protective cover 17 covers the first fixed disk 6 and the second fixed disk 7. The both ends of above-mentioned nylon stick 16 all extend to outside fixed disk one 6, the fixed disk two 7, and the both ends that the protection casing 17 corresponds nylon stick 16 are provided with two sets of spacing rings respectively, and when six nylon stick 16 all pegged graft in the metal sheet, the internal wall of spacing ring is with six nylon stick 16's external diameter butt simultaneously. Wherein, each group of limit rings is composed of two symmetrically arranged semicircular rings 18, and the protective cover 17 is provided with a driving piece 9 which drives the semicircular rings 18 to move along the radial direction of the pump shaft 4.

In this embodiment, a limit plate 19 is fixed between the two semi-circular rings 18 on the same radial side of the pump shaft 4. The driving part 9 comprises a screw rod 91 and a guide rod 92 which are arranged in parallel, the screw rod 91 and the guide rod 92 are both arranged along the radial direction of the pump shaft 4, wherein the screw rod 91 is rotatably connected to the protective cover 17, passes through the limiting plate 19 and is in threaded fit with the limiting plate 19, and the guide rod 92 is fixed on the protective cover 17 and passes through the limiting plate 19; one end of the screw rod 91 extends out of the protective cover 17 and a hand wheel 93 is coaxially fixed at one end outside the protective cover 17; when the screw 91 is driven to rotate, the limiting plate 19 is driven to drive the two half circular rings 18 to do linear reciprocating displacement work.

In this embodiment, when the two half rings 18 abut against each other to form the limiting ring, a gap exists between the limiting ring and the first fixing disk 6/the second fixing disk 7.

In this embodiment, the upper end of the protection cover 17 is provided with an opening, one end of the opening is hinged with the closing plate 20 through a hinge, the other end of the opening is fixed with a hasp seat, a hook corresponding to the hasp seat is fixed on the closing plate 20, and the closing plate 20 is limited by the cooperation of the hasp seat and the hook.

The implementation principle of the embodiment is as follows: during installation, the closing plate 20 is driven to open the opening of the protective cover 17, the first fixed disc 6 and the second fixed disc 7 are respectively inserted into the first insertion block 12 and the second insertion block 13, the nylon rods 16 are sequentially inserted into the metal sheets of the limiting holes 10, then the lead screws 91 on two sides of the protective cover 17 are driven to rotate, the semicircular rings 18 are driven to linearly displace and mutually abut against each other to form limiting rings clamped outside the six groups of nylon rods 16, and then the buckling seats are matched with the hooks to realize the limiting work of the closing plate 20;

when the slurry pump works, the motor 2 is started, and the output shaft 5 drives the pump shaft 4 to rotate, so that the impeller is driven to rotate, and the normal conveying work of the slurry pump is realized; when the impeller is blocked to cause the pump shaft 4 to be incapable of rotating, the nylon rod 16 bears the torque of the motor 2 and breaks, so that the synchronous rotation relation between the pump shaft 4 and the output shaft 5 is released, the motor 2 can rotate independently, and the damage probability of the motor 2 is reduced.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a soft foundation is handled with forced-ventilated pump, includes frame (1), sets up motor (2), pump case (3) on frame (1) and sets up the impeller in pump case (3), the impeller coaxial fixation has pump shaft (4), its characterized in that: a first fixed disk (6) and a second fixed disk (7) are coaxially arranged on the pump shaft (4) and an output shaft (5) of the motor (2) respectively, a plurality of groups of limiting holes (10) are correspondingly formed in the first fixed disk (6) and the second fixed disk (7) respectively, a nylon rod (16) is inserted into the limiting holes (10) corresponding to the first fixed disk (6) and the second fixed disk (7), the nylon rod (16) is arranged in parallel with the pump shaft (4), and a limiting part (8) for limiting the nylon rod (16) is further arranged in the limiting hole (10); the limiting hole (10) is arranged in an opening with one end communicated with the outer wall of the first fixed disk (6)/the second fixed disk (7), the limiting part (8) comprises an elastic metal sheet with a U-shaped section, the metal sheet comprises a semicircular sheet (81) and two straight sheets (82), and the joint of the straight sheets (82) and the semicircular sheet (81) is bent inwards to form a semi-circular shape abutted against the outer wall of the nylon rod (16); two support legs (83) extend from the two straight pieces (82) respectively, and supporting grooves (11) for the support legs (83) to be inserted are formed in the first fixed disk (6)/the second fixed disk (7) respectively; the outer diameter of the middle section of the nylon rod (16) is larger than the outer diameters of the two ends, and the length of the middle section of the nylon rod (16) is the same as the distance between the first fixed disk (6) and the second fixed disk (7); the machine base (1) is correspondingly provided with a protective cover (17), two ends of the nylon rod (16) respectively extend out of the first fixed disk (6) and the second fixed disk (7), two groups of limiting rings are respectively arranged at two ends of the protective cover (17) corresponding to the nylon rod (16), and the inner walls of the limiting rings are simultaneously abutted to the outer walls of the nylon rods (16); each group of limiting rings consists of two semi-circular rings (18), and a driving piece (9) for driving the semi-circular rings (18) to move along the radial direction of the pump shaft (4) is further arranged on the protective cover (17).

2. A forced-ventilated pump for soft foundation treatment as claimed in claim 1, wherein: the pump shaft (4) and the output shaft (5) of the motor (2) are respectively fixed with a first inserting block (12) and a second inserting block (13) with polygonal sections, the outer walls of the first inserting block (12) and the second inserting block (13) are smaller than the outer diameters of the pump shaft (4) and the output shaft (5) of the motor (2), and a first inserting groove (14) and a second inserting groove (15) which are matched with the first inserting block (12) and the second inserting block (13) in an inserting mode are respectively formed in the first fixed disc (6) and the second fixed disc (7).

3. A forced-ventilated pump for soft foundation treatment as claimed in claim 1, wherein: the driving piece (9) comprises a screw rod (91), a guide rod (92) and a hand wheel (93), the screw rod (91) is rotatably connected to the protective cover (17) and is in threaded fit with the semicircular ring (18), the guide rod (92) is arranged in parallel with the screw rod (91) and is fixed on the protective cover (17) and is used for inserting the semicircular ring (18), one end of the screw rod (91) extends to the outer side of the protective cover (17), and the hand wheel (93) and the screw rod (91) are located at the outer end of the protective cover (17) and are coaxially fixed.

4. A forced-ventilated pump for soft foundation treatment as claimed in claim 3, wherein: be in pump shaft (4) radially fixedly connected with limiting plate (19) between the two halves ring (18) of same side, lead screw (91) and limiting plate (19) screw-thread fit, limiting plate (19) are passed to guide bar (92).

5. A forced-ventilated pump for soft foundation treatment as claimed in claim 1, wherein: and a gap is formed between the semicircular ring (18) and the first fixed disk (6)/the second fixed disk (7).

6. A forced-ventilated pump for soft foundation treatment as claimed in claim 1, wherein: the protection casing (17) upper end is the opening setting, protection casing (17) opening one end articulates there is closing plate (20), protection casing (17) opening other end is provided with the hasp piece of locking closing plate (20).