CN212055137U - Slurry pump with adjustable direction and excellent overall performance - Google Patents
Slurry pump with adjustable direction and excellent overall performance Download PDFInfo
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- CN212055137U CN212055137U CN202020656144.3U CN202020656144U CN212055137U CN 212055137 U CN212055137 U CN 212055137U CN 202020656144 U CN202020656144 U CN 202020656144U CN 212055137 U CN212055137 U CN 212055137U
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Abstract
The utility model discloses a direction is adjustable and the slurry pump that the wholeness can be superior belongs to slurry pump technical field, including the pump shaft, fix the impeller at the pump shaft front end, set up the pump cover at the impeller entrance point, and the front fender, still include the pump body that sets up at the impeller rear, set up the backplate between the pump body and impeller, and fix the suction cap at the front fender periphery, the pump body is fixedly connected with the pump cover, the pump body is the same with the pump cover structure and the front and back symmetry sets up, the mounting structure still includes the splice plate of fixing between backplate and bearing box, between splice plate and the pump body, between splice plate and the pump cover, between suction cap and the pump body all be detachable connection; the slurry pump also includes an adjustment mechanism disposed between the front guard plate and the suction cover. The manufacturing cost of a product manufacturer can be reduced, and the use cost of a user can be reduced. The abrasion speed of the front lining plate can be slowed down, so that the service life of the front lining plate is prolonged, and the cost is saved.
Description
Technical Field
The utility model belongs to the technical field of the sediment stuff pump, a direction is adjustable and the superior sediment stuff pump of wholeness ability is related to.
Background
The sediment stuff pump is used for carrying the solid particle that contains dregs and the slurry that the water mixes constitutes more, the sediment stuff pump includes the pump body, the pump cover, the apron plate, the backplate, the impeller, pump shaft and bearing box, the pump cover is located pump body the place ahead, current bearing box and pump shaft can only set up in the impeller rear, the suction cap can only be connected with the pump cover, the export of pump generally is located the left side or the right side of pump body and pump cover, so the export of current pump can only be one of clockwise export or anticlockwise export, the pump body can not exchange with the pump cover, make product manufacturer's manufacturing cost higher, and the user wants to have the pump of clockwise export and the pump of anticlockwise export simultaneously, just need purchase the different pumps of these two kinds of exports, lead to user's use cost also higher.
The back is accomplished in case the equipment to current sediment stuff pump, between backplate and the suction cover, between backplate and the impeller front shroud along axial clearance just can't readjust, along with the wearing and tearing of backplate, the clearance between backplate and the impeller front shroud increases gradually, can cause a lot of mud to flow back to the import, and the efficiency influence to the pump is very big, so backplate need frequently be changed to the life of backplate is short.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome prior art's defect, provide a slurry pump that the direction is adjustable and the wholeness can be superior, the pump body can exchange the use with the pump cover, can reduce product manufacturer's manufacturing cost like this, reduces user's use cost. In the rotating process of the front guard plate, the front guard plate can move backwards along the axial direction, so that the purpose of reducing the axial gap between the front guard plate and the front cover plate of the impeller is achieved, the replacement period of the front guard plate can be prolonged, and the cost is saved.
The technical scheme of the utility model as follows: the utility model provides an adjustable and excellent sediment stuff pump of wholeness ability of direction, includes and forms normal running fit's pump shaft with the bearing box, fixes the impeller at the pump shaft front end, sets up the pump cover at the impeller entrance point and sets up the apron plate between pump cover and impeller, still including setting up the pump body at the impeller rear, set up the backplate between the pump body and impeller and fix at apron plate outlying suction cover in the front, the pump body and pump cover fixed connection, the key lies in: the pump body and the pump cover are identical in structure and symmetrically arranged front and back, the mounting structure further comprises a joint plate fixed between the rear protective plate and the bearing box, and the joint plate is detachably connected with the pump body, the joint plate is detachably connected with the pump cover, the suction cover is detachably connected with the pump cover, and the suction cover is detachably connected with the pump body;
the slurry pump also comprises an adjusting mechanism arranged between the front guard plate and the suction cover, the adjusting mechanism comprises an outer cylindrical gear which is fixed on the front end face of the front guard plate and is provided with inner straight teeth, an inner cylindrical gear which is arranged on the inner side of the outer cylindrical gear and is meshed with the outer cylindrical gear, and a transmission shaft which is coaxially arranged with the inner cylindrical gear and is fixedly connected with the inner cylindrical gear, the outer cylindrical gear, the axes of the inner cylindrical gear and the transmission shaft are arranged along the front-back direction, the front end of the transmission shaft penetrates through the suction cover and then extends to the front of the suction cover, the front end of the front guard plate is in threaded connection with the suction cover, and the front guard plate has the freedom of movement close to or far away from the suction cover by means of the rotation.
The mounting structure also comprises a connector fixed between the front end of the bearing box and the joint plate, and the connector is detachably connected with the bearing box and the joint plate.
The pump comprises a pump body, a pump cover, a front pump lining, a rear pump lining, a positioning washer and a nut, wherein the front pump lining is fixed on the inner wall of the pump cover and located on the periphery of a front guard plate, the rear pump lining is located on the periphery of a rear guard plate, the outer edge of the rear pump lining and the outer edge of the front pump lining are clamped between the pump body and the pump cover, the pump body and the pump cover are fixedly connected through the cooperation of the fixing bolt and the nut, the positioning washer is sleeved on the fixing bolt and located between the pump body and the pump cover.
The pump is characterized in that a rear side of the outer edge of the pump rear lining protrudes to form an arc-shaped rear sealing protrusion, a front side of the outer edge of the pump front lining protrudes to form an arc-shaped front sealing protrusion, an arc-shaped rear positioning groove used for accommodating the rear sealing protrusion is formed in the front end face of the pump body, an arc-shaped front positioning groove used for accommodating the front sealing protrusion is formed in the rear end face of the pump cover, and positioning gaskets are located on the outer sides of the rear positioning groove and the front positioning groove.
The adjusting mechanism further comprises a disc moving handle and a disc moving belt wheel arranged in front of the suction cover, the front end of the transmission shaft and the disc moving belt wheel are coaxially arranged and fixedly connected, a slot is formed in the side wall of the disc moving belt wheel, one end of the disc moving handle is connected with the slot in an inserting mode, and the other end of the disc moving handle is a holding end.
A bearing is arranged between the transmission shaft and the suction cover and fixedly connected with the suction cover.
The holding tank has been seted up on the preceding terminal surface of backplate in the front, and outer cylindrical gear and interior cylindrical gear all are located the holding tank.
The outer wall of outer cylindrical gear rear end outside extend to form into convex location edge, the location has seted up the locating hole on following, adjustment mechanism still includes positioning bolt, positioning bolt pass behind the locating hole on the location edge with preceding backplate threaded connection.
The impeller front cover plate is arranged between the impeller and the front guard plate, a group of arc-shaped front back blades are arranged on the front end face of the impeller front cover plate along the circumferential direction, the front back blades are fixedly connected with the impeller front cover plate, a gap is reserved between each front back blade and the front guard plate, the distance between every two adjacent front back blades is gradually increased from the inner end close to the axis of the impeller front cover plate to the outer end close to the outer wall of the impeller front cover plate, and the bending extending direction of the outer ends of the front back blades is opposite to the screwing-in direction of the impeller front cover plate.
The impeller front cover plate comprises a shaft sleeve and an annular plate body fixed on the periphery of the shaft sleeve, a groove is formed in the front end face of the annular plate body, the front back blade is located in the groove, and the clearance d1 between the front back blade and the front protection plate is larger than the clearance d2 between the shaft sleeve and the front protection plate.
The utility model discloses a theory of operation and beneficial effect do: the pump body is the same with the pump cover structure and the front and back symmetry sets up, add the splice plate between backplate and bearing box, between splice plate and the pump body, between splice plate and the pump cover, between suction cover and the pump cover, be detachable connection between suction cover and the pump body, so can be in the same place splice plate and pump body are fixed, suction cover and pump cover are fixed together, also can be in the same place splice plate and pump cover are fixed, suction cover and pump body are fixed together, the pump body can be used as the pump cover, the pump cover also can use as the pump body. The outlet of the pump is generally positioned on the left side or the right side of the pump body and the pump cover, and if the outlet of the pump is positioned on the right side of the pump body and the pump cover, the pump is an anticlockwise outlet when the joint plate and the pump body are fixed together and the suction cover and the pump cover are fixed together; when the joint plate and the pump cover are fixed together and the suction cover and the pump body are fixed together, the pump is a clockwise outlet, namely the pump can be a clockwise outlet or a counterclockwise outlet. The utility model discloses a pump body is identical with the pump cover structure, can exchange the use, only need one set of production facility can, can reduce product manufacturer's manufacturing cost like this. A user only needs to buy one pump to have two functions of a clockwise outlet and a counterclockwise outlet, so that the use cost of the user can be reduced.
The front end face of the front guard plate is additionally provided with an outer cylindrical gear, the inner side of the outer cylindrical gear is additionally provided with an inner cylindrical gear meshed with the outer cylindrical gear, the rear end of a transmission shaft is fixedly connected with the inner cylindrical gear, the front end of the transmission shaft penetrates through a suction cover and then extends to the front of the suction cover, and the front end of the front guard plate is in threaded connection with the suction cover. Rotate the transmission shaft, the transmission shaft can drive interior cylindrical gear synchronous revolution, interior cylindrical gear drives the apron plate rotatory through the outer cylindrical gear rather than the meshing, because the front end of apron plate with inhale the lid threaded connection, so at apron plate rotation in-process in the front, the apron plate can be followed the axial and removed backward, thereby reach and reduce between apron plate and the impeller front shroud along axial clearance's purpose, moreover, the steam generator is simple in structure, and the operation is convenient and fast, time and labor are saved, can prolong the change cycle of apron plate, and the cost is saved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a in fig. 1.
Fig. 3 is a schematic structural diagram of the adjusting mechanism of the present invention.
Fig. 4 is a front view of the connection structure of the front cover plate and the front back blade of the middle impeller of the present invention.
Fig. 5 is a right side view of the connection structure of the front cover plate and the front back blade of the middle impeller of the present invention.
Fig. 6 is a schematic view of the connection structure between the middle sealing ring and the front guard plate of the present invention.
In the figure: 1. bearing box, 2, pump shaft, 3, impeller, 4, pump cover, 4-1, front positioning groove, 5, front guard plate, 6, pump body, 6-1, rear positioning groove, 7, rear guard plate, 8, suction cover, 9, joint plate, 10, connecting body, 11, pump front lining, 11-1, front sealing bulge, 12, pump rear lining, 12-1, rear sealing bulge, 13, fixing bolt, 14, positioning gasket, 15, outer cylindrical gear, 16, inner cylindrical gear, 17, transmission shaft, 18, driving belt wheel, 19, driving handle, 20, bearing, 21, accommodating groove, 22, positioning bolt, 23, impeller front cover plate, 23-1, shaft sleeve, 23-2, annular plate body, 24, front back blade, 25, thread section, 26, sealing ring, 27, sealing ring, 28, lapping edge, 29, sealing gasket, 29-1, A snap ring.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 6, a slurry pump with adjustable direction and excellent overall performance comprises a pump shaft 2 rotationally matched with a bearing box 1, an impeller 3 fixed at the front end of the pump shaft 2, a pump cover 4 arranged at the inlet end of the impeller 3, a front guard plate 5 arranged between the pump cover 4 and the impeller 3, a pump body 6 arranged at the rear of the impeller 3, a rear guard plate 7 arranged between the pump body 6 and the impeller 3, and a suction cover 8 fixed at the periphery of the front guard plate 5, wherein the pump body 6 is fixedly connected with the pump cover 4, the pump body 6 and the pump cover 4 are the same in structure and are symmetrically arranged front and back, the mounting structure further comprises a joint plate 9 fixed between the rear protective plate 7 and the bearing box 1, and the joint plate 9 and the pump body 6, the joint plate 9 and the pump cover 4, the suction cover 8 and the pump cover 4, and the suction cover 8 and the pump body 6 are detachably connected.
The slurry pump also comprises an adjusting mechanism arranged between the front guard plate 5 and the suction cover 8, the adjusting mechanism comprises an outer cylindrical gear 15 which is fixed on the front end surface of the front guard plate 5 and is provided with inner straight teeth, an inner cylindrical gear 16 which is arranged on the inner side of the outer cylindrical gear 15 and is meshed with the outer cylindrical gear, and a transmission shaft 17 which is coaxially arranged with the inner cylindrical gear 16 and is fixedly connected with the inner cylindrical gear, the axes of the outer cylindrical gear 15, the inner cylindrical gear 16 and the transmission shaft 17 are all arranged along the front-back direction, the front end of the transmission shaft 17 penetrates through the suction cover 8 and then extends to the front of the suction cover 8, the front end of the front guard plate 5 is in threaded connection with the suction cover 8, and the front guard plate 5 has the moving freedom degree close to or far away from the suction cover 8 by means of the rotation of the.
The mounting structure also comprises a connecting body 10 fixed between the front end of the bearing box 1 and the joint plate 9, and the connecting body 10 is detachably connected with the bearing box 1 and the connecting body 10 is detachably connected with the joint plate 9. The detachable connection is formed between the connecting body 10 and the bearing box 1 and between the connecting body 10 and the joint plate 9 by fastening bolts, and the structure is simple, the dismounting is convenient and fast, and the time and the labor are saved.
The detachable connection is formed between the joint plate 9 and the pump body 6, between the joint plate 9 and the pump cover 4, between the suction cover 8 and the pump cover 4 and between the suction cover 8 and the pump body 6 by means of locking bolts, and the detachable connection structure is simple in structure, convenient and fast to assemble and disassemble, and time-saving and labor-saving.
As right the utility model discloses a further improvement, be fixed with lining 11 before the pump on pump cover 4's inner wall, lining 11 is located backplate 5 periphery before the pump, be fixed with inside lining 12 behind the pump on pump body 6's inner wall, inside lining 12 is located backplate 7 periphery behind the pump, the outward flange of inside lining 12 is pressed from both sides tightly between pump body 6 and pump cover 4 behind the pump and the outward flange of lining 11 before the pump, pump body 6 and pump cover 4 are with the help of the cooperation fixed connection of fixing bolt 13 and nut, the cover is equipped with positioning washer 14 on fixing bolt 13, positioning washer 14 is located between pump body 6 and the pump cover 4 and is located the pump before inside lining 11 and the pump behind the inside lining 12 outside. As shown in fig. 2, the positioning washer 14 is sleeved on the fixing bolt 13 and located between the pump body 6 and the pump cover 4, so that the distance between the pump body 6 and the pump cover 4 can be accurately controlled, the outer edge of the pump rear liner 12 and the outer edge of the pump front liner 11 which are clamped between the pump body 6 and the pump cover 4 are ensured to have proper compression amount, high-pressure slurry in the pump cavity can be sealed, the pump rear liner 12 and the pump front liner 11 can be prevented from being damaged due to excessive compression, and the sealing effect is ensured.
The utility model discloses have enough big area of contact between ensureing between the spacer ring 14 and the pump body 6, between spacer ring 14 and the pump cover 4, effectively play the supporting role under, reduce the external diameter of spacer ring 14 as far as possible, can practice thrift the cost, so the utility model discloses set up the external diameter of spacer ring 14 into 80-90 mm. On the premise of ensuring that the positioning gasket 14 has high enough strength and stable and reliable support, the thickness of the positioning gasket 14 is reduced as much as possible, and the cost can be saved, so the utility model sets the thickness of the positioning gasket 14 to 35-45 mm.
As a further improvement of the utility model, the rear side of the outer edge of the pump rear lining 12 is protruded to form a circular arc rear sealing protrusion 12-1, the front side of the outer edge of the pump front lining 11 is protruded to form a circular arc front sealing protrusion 11-1, the front end face of the pump body 6 is provided with a circular arc rear positioning groove 6-1 for accommodating the rear sealing protrusion 12-1, the rear end face of the pump cover 4 is provided with a circular arc front positioning groove 4-1 for accommodating the front sealing protrusion 11-1, and the positioning gasket 14 is positioned outside the rear positioning groove 6-1 and the front positioning groove 4-1. The rear sealing bulge 12-1 at the outer edge of the pump rear lining 12 is clamped in the rear positioning groove 6-1, the front sealing bulge 11-1 at the outer edge of the pump front lining 11 is clamped in the front positioning groove 4-1, so that the accurate positioning of the pump rear lining 12 and the pump front lining 11 can be realized, the sealing surfaces of the pump rear lining 12 and the pump front lining 11 are aligned and attached, and sealing failure caused by shrinkage and displacement of the pump rear lining 12 and the pump front lining 11 is prevented during compression.
The rear positioning groove 6-1 and the front positioning groove 4-1 are symmetrically arranged in front and back, the depth of the rear positioning groove 6-1 and the depth of the front positioning groove 4-1 are both 10-20mm, and the opening width d is both 45-55 mm. The rear sealing bulge 12-1 clamped in the rear positioning groove 6-1 and the front sealing bulge 11-1 clamped in the front positioning groove 4-1 are made to have enough large volumes, so that enough large contact areas are formed between the rear sealing bulge 12-1 and the rear positioning groove 6-1 and between the front sealing bulge 11-1 and the front positioning groove 4-1, and the rear sealing bulge 12-1 and the front sealing bulge 11-1 can be prevented from slipping from the rear positioning groove 6-1 and the front sealing bulge 11-1 can be prevented from slipping from the front positioning groove 4-1.
As right the utility model discloses a further improvement, adjustment mechanism still includes that the dish moves handle 19 and sets up the dish in suction lid 8 the place ahead and moves band pulley 18, and the slot has been seted up to the front end of transmission shaft 17 and the coaxial setting and the fixed connection of dish moving band pulley 18 on the lateral wall of dish moving band pulley 18, and the one end and the slot of dish moving handle 19 are pegged graft, the other end is for holding the end. One end of the dish moving handle 19 is inserted into the slot of the dish moving belt wheel 18, and the other end of the dish moving handle 19 is held by a hand to rotate, so that the operation is more convenient and labor-saving. As shown in fig. 3, the outer wall of the front end of the suction cover 8 protrudes outward to form a convex edge, and the pulley 18 is located on the periphery of the convex edge, so that it is more convenient to rotate the pulley 18, and at least two slots are arranged on the side wall of the pulley 18 along the circumferential direction, so that the requirement for the orientation of the slots on the pulley 18 when the pulley 18 is mounted can be reduced.
As a further improvement of the present invention, a bearing 20 is provided between the transmission shaft 17 and the suction cover 8, and the bearing 20 is fixedly connected to the suction cover 8. The transmission shaft 17 is more time-saving and labor-saving when being rotated, and the transmission shaft 17 can be prevented from being directly contacted with the suction cover 8 to cause abrasion to the suction cover 8 in the rotating process.
As right the utility model discloses a further improvement has seted up holding tank 21 on the preceding terminal surface of backplate 5 in the front, and outer cylindrical gear 15 and interior cylindrical gear 16 all are located holding tank 21, need not reform transform the structure that inhales lid 8 like this and can realize the rotation regulation of backplate 5 in the front, can not increase the pump along the length of fore-and-aft direction, and the suitability is better.
As right the utility model discloses a further improvement, as shown in fig. 3, the outer wall of outer cylinder gear 15 rear end extends to the outside and forms to convex location edge, and the locating hole has been seted up on the location edge, and adjustment mechanism still includes positioning bolt 22, and positioning bolt 22 passes behind the locating hole on the location edge and 5 threaded connection of apron plate. Simple structure, easy dismounting is swift, labour saving and time saving. In order to make the connection more firm and reliable, the positioning bolt 22 can be screwed with the positioning hole on the positioning edge.
As right the utility model discloses a further improvement is provided with impeller front shroud 23 between impeller 3 and apron 5, be provided with a set of convex preceding back of the body blade 24 along the circumferencial direction at the preceding terminal surface of impeller front shroud 23, preceding back of the body blade 24 and impeller front shroud 23 fixed connection leave the clearance between preceding back of the body blade 24 and the apron 5, interval between the adjacent preceding back of the body blade 24 is by the inner that is close to impeller front shroud 23 axis to the outer end that is close to impeller front shroud 23 outer wall crescent and the crooked extending direction of preceding back of the body blade 24 outer end is opposite with the precession direction of impeller front shroud 23. The front back blade 24 is bent and extended to form a streamline shape, and when the impeller front cover plate 23 drives the front back blade 24 to rotate, the front back blade 24 can push slag between the adjacent front back blades 24 outwards, so that discharge of large solid particles is facilitated, abrasion between the impeller front cover plate 23 and the front guard plate 5 can be reduced, abrasion speed of the front guard plate 5 is reduced, service life of the front guard plate 5 is prolonged, and cost is saved.
The impeller front cover plate 23 comprises a shaft sleeve 23-1 and an annular plate 23-2 fixed on the periphery of the shaft sleeve 23-1, a groove is arranged on the front end face of the annular plate 23-2, the front back blade 24 is positioned in the groove, and the clearance d1 between the front back blade 24 and the front guard plate 5 is larger than the clearance d2 between the shaft sleeve 23-1 and the front guard plate 5. The small internal clearance d2 is beneficial to reducing the leakage amount of solid particles, and meanwhile, small particles are not prevented from passing smoothly, and accumulation and increased abrasion are avoided. The outer wide gap d1 is advantageous in reducing the rotating speed of the solid particles, so that a small amount of residual slag can smoothly leak between the adjacent front and back blades 24, and is advantageous in being discharged. The clearance d1 between the front and back blades 24 and the front guard plate 5 is 21-23mm, and the clearance d2 between the shaft sleeve 23-1 and the front guard plate 5 is 18-19 mm.
The outer diameter of the shaft sleeve 23-1 is 500-510mm, the outer diameter of the annular plate body 23-2 is 955-965mm, the number of the front and back blades 24 is 10-15, the thickness D of the front and back blades 24 is 25-35mm, and the thickness is large enough to ensure that the front and back blades 24 have enough strength. As shown in fig. 5, the shaft sleeve 23-1 and the annular plate 23-2 both rotate counterclockwise, the outer ends of the front and back blades 24 extend in a clockwise bending manner, the distance between the adjacent front and back blades 24 gradually increases from one end close to the shaft sleeve 23-1 to the other end, and the number of the front and back blades 24 is 12 and is uniformly arranged along the circumferential direction.
A transition inclined plane is arranged between the bottom surface of the groove and the front end surface of the shaft sleeve 23-1, the shape of the inner end of the front back blade 24 is matched with that of the transition inclined plane, the included angle between the transition inclined plane and the axis of the front cover plate 23 of the impeller is alpha, and alpha is more than 0 degree and less than 90 degrees, and preferably 60 degrees. The transition slopes allow the small particles to smoothly enter the grooves, reach between adjacent ones of the front and back blades 24, and then be discharged.
As shown in fig. 6, a receiving groove is formed on the inner wall of the front end of the front guard plate 5, a sealing ring 26 is arranged in the receiving groove, at least two sealing grooves are formed on the outer wall of the sealing ring 26 along the axial direction, the depth of each sealing groove is 5-10mm, and the width of each sealing groove along the front-back direction is 10-15 mm. A sealing ring 27 is arranged in each sealing groove, the outer wall of the front end of the sealing ring 26 is bent outwards and extends perpendicularly to form a placing edge 28, the front end surface of the front protection plate 5 is in contact with the rear end surface of the placing edge 28, and the front end surface of the suction cover 8 is provided with a groove for accommodating the placing edge 28. Can prevent effectively that the slurry from getting into the clearance between sealing ring 26 and the apron plate 5, prevent that the slurry from getting into the apron plate 5 inside, avoid the dead apron plate 5 of card, can satisfy the requirement that the apron plate 5 removed from side to side simultaneously. The lapping edge 28 of the sealing ring 26 is positioned in front of the front guard plate 5, and can also protect the inlet of the front guard plate 5 from being worn.
As shown in fig. 6, the inner diameter of the sealing ring 26 is linearly reduced from the front to the rear, and the inner diameter of the rear end face of the sealing ring 26 is smaller than or equal to the diameter of the rear end face of the receiving groove, so that the impact force of the slurry on the sealing ring 26 can be reduced, and the abrasion between the sealing ring 26 and the front guard plate 5 can be reduced. In this case, in order to ensure that the sealing ring 26 has a sufficiently large inner diameter to facilitate the passage of the slurry, the present invention sets the angle β between the inner wall of the sealing ring 26 and the axis to 5-10 °.
As shown in fig. 6, the sealing ring 26 includes a front ring body having a cylindrical shape and a rear ring body having a conical shape, the outer diameter of the rear ring body is linearly decreased from front to rear and the outer diameter of the front end surface of the rear ring body is smaller than that of the front ring body, and the sealing grooves are located on the outer wall of the front ring body. When the front guard plate 5 moves backward (i.e., to the left in fig. 6) in the axial direction, a large gap is formed between the outer wall of the rear ring body and the inner wall of the front guard plate 5, so that the abrasion between the sealing ring 26 and the front guard plate 5 can be reduced, and the sealing ring 26 can be better protected.
The slurry pump also comprises a suction pipe flange which is tightly contacted and fixedly connected with the suction cover 8, as shown in fig. 6, a sealing gasket 29 which is coaxially arranged with the suction pipe flange and is tightly contacted with the suction pipe flange is fixed on the front end surface of the lapping edge 28, and the sealing gasket 29 can effectively prevent slurry from flowing out from a gap between the suction pipe flange and the suction cover 8, reduce the waste of the slurry and save the cost.
As shown in fig. 6, the sealing gasket 29 is an annular structure surrounded by pi-shaped sealing strips, mounting grooves for accommodating two longitudinal strips of the pi-shaped sealing strips are formed in the sealing ring 26, grooves are formed in the edges of the front end face of the placing edge 28, and transverse strips of the pi-shaped sealing strips are located in the grooves, so that the sealing effect is better.
As shown in fig. 6, the groove on the front end surface of the suction cover 8 is a stepped groove, and includes a front groove body and a rear groove body, the diameter of the front groove body is greater than that of the rear groove body, the placing edge 28 is inserted into the rear groove body, the length of the placing edge 28 in the front-rear direction is greater than that of the rear groove body and less than that of the stepped groove, the outer end of the sealing gasket 29 is bent backwards and extends to form a snap ring 29-1 sleeved on the placing edge 28, the snap ring 29-1 is located in the front groove body, and the snap ring 29-1 can play a role in clamping and positioning, so as to prevent the sealing gasket 29 from shrinking inwards and.
The utility model discloses when specifically using, as shown in fig. 1, between the splice plate 9 and the pump body 6, between splice plate 9 and the pump cover 4, inhale between lid 8 and the pump cover 4, inhale the locking bolt between lid 8 and the pump body 6 and all be located the fastening bolt's between connector 10 and the splice plate 9 periphery, it is more simple and convenient during the operation. Positioning blocks with internal threads are fixed on the pump front lining 11 and the pump rear lining 12, and locking bolts penetrate through the pump body 6 or the pump cover 4 and then are in threaded connection with the positioning holes, so that the pump rear lining 12 and the pump body 6 are fixed together, and the pump front lining 11 and the pump cover 4 are fixed together. The impeller 3 is positioned in a cavity enclosed by the pump front lining 11, the pump rear lining 12, the front guard plate 5 and the rear guard plate 7.
The utility model discloses can be in the same place the splice plate 9 is fixed with the pump body 6, inhale lid 8 and pump cover 4 and be in the same place, also can be in the same place splice plate 9 is fixed with pump cover 4, inhale lid 8 and pump body 6 and be in the same place, pump body 6 can use as pump cover 4, and pump cover 4 also can use as pump body 6. The outlet of the pump is generally located on the left side or the right side of the pump body 6 and the pump cover 4, and if the outlet of the pump is located on the right side of the pump body 6 and the pump cover 4, when the joint plate 9 and the pump body 6 are fixed together and the suction cover 8 and the pump cover 4 are fixed together, as shown in fig. 1, the pump shaft 2 is located behind the impeller 3 at this time, and the pump is an anticlockwise outlet; when the joint plate 9 is fixed together with the pump cover 4, the suction cover 8 is fixed together with the pump body 6, the pump shaft 2 is located the place ahead of the impeller 3, and the pump is clockwise export, that is to say the utility model discloses a this kind of mounting structure makes the pump can be clockwise export also can be anticlockwise export. The pump body 6 and the pump cover 4 have the same structure and can be used interchangeably, and only one set of production equipment is needed, so that the manufacturing cost of a product manufacturer can be reduced. A user only needs to buy one pump to have two functions of a clockwise outlet and a counterclockwise outlet, so that the use cost of the user can be reduced.
As shown in fig. 3, a screw thread section 25 is provided on both the inner wall of the front end of the suction cap 8 and the outer wall of the front end of the front protector 5, and the suction cap 8 and the front protector 5 are screw-coupled by the screw thread section 25. Insert the one end of dish movable handle 19 in the slot of dish movable pulley 18, hold the other end of dish movable handle 19 and rotate, it is rotatory that dish movable handle 19 drives transmission shaft 17 through dish movable pulley 18, transmission shaft 17 can drive interior cylindrical gear 16 synchronous revolution, interior cylindrical gear 16 drives apron 5 rotatory through outer cylindrical gear 15 rather than the meshing, under the effect of screw thread section 25, apron 5 can follow axial rearward movement at rotatory in-process, thereby reach and reduce the purpose along axial clearance between apron 5 and the impeller front shroud 28, moreover, the steam generator is simple in structure, and the operation is convenient and fast, time and labor saving, can prolong the life of apron 5, thereby prolong the change cycle of apron 5, and the cost is saved.
Claims (10)
1. The utility model provides an adjustable and excellent slurry pump of wholeness ability of direction, include and form normal running fit's pump shaft (2) with bearing box (1), fix impeller (3) at pump shaft (2) front end, set up pump cover (4) at impeller (3) entrance point, and set up apron plate (5) between pump cover (4) and impeller (3), still including setting up pump body (6) at impeller (3) rear, set up backplate (7) between pump body (6) and impeller (3), and fix apron plate (5) outlying suction cover (8) in the front, pump body (6) and pump cover (4) fixed connection, its characterized in that: the pump body (6) and the pump cover (4) are identical in structure and symmetrically arranged front and back, the mounting structure further comprises a joint plate (9) fixed between the rear protective plate (7) and the bearing box (1), and the joint plate (9) is detachably connected with the pump body (6), the joint plate (9) is detachably connected with the pump cover (4), the suction cover (8) is detachably connected with the pump cover (4), and the suction cover (8) is detachably connected with the pump body (6);
the slurry pump also comprises an adjusting mechanism arranged between the front guard plate (5) and the suction cover (8), the adjusting mechanism comprises an outer cylindrical gear (15) which is fixed on the front end surface of the front guard plate (5) and is provided with inner straight teeth, an inner cylindrical gear (16) which is arranged on the inner side of the outer cylindrical gear (15) and is meshed with the outer cylindrical gear, and a transmission shaft (17) which is coaxially arranged with the inner cylindrical gear (16) and is fixedly connected with the inner cylindrical gear, the axes of the outer cylindrical gear (15), the inner cylindrical gear (16) and the transmission shaft (17) are all arranged along the front-back direction, the front end of the transmission shaft (17) passes through the suction cover (8) and then extends to the front of the suction cover (8), and the front end of the front guard plate (5) is in threaded connection with the suction, the front guard plate (5) has a freedom of movement toward or away from the suction cover (8) by means of the rotation of the transmission shaft (17) and the screw connection between the front guard plate (5) and the suction cover (8).
2. The slurry pump of claim 1, wherein the slurry pump has adjustable direction and excellent overall performance, and further comprises: the mounting structure also comprises a connecting body (10) fixed between the front end of the bearing box (1) and the joint plate (9), and the connecting body (10) is detachably connected with the bearing box (1) and the connecting body (10) is detachably connected with the joint plate (9).
3. The slurry pump of claim 1, wherein the slurry pump has adjustable direction and excellent overall performance, and further comprises: be fixed with inside lining (11) before the pump on the inner wall of pump cover (4), inside lining (11) before the pump is located apron plate (5) periphery, inside lining (12) behind the pump is fixed with on the inner wall of the pump body (6), inside lining (12) are located backplate (7) periphery behind the pump, the outward flange of inside lining (12) is pressed from both sides tightly between the pump body (6) and pump cover (4) behind the pump and the outward flange of inside lining (11) before the pump, pump body (6) and pump cover (4) are with the help of the cooperation fixed connection of fixing bolt (13) and nut, the cover is equipped with positioning washer (14) on fixing bolt (13), positioning washer (14) are located between the pump body (6) and pump cover (4) and are located inside lining (11) and the pump behind the pump outside of inside lining (12).
4. The slurry pump of claim 3, wherein the slurry pump has adjustable direction and excellent overall performance, and further comprises: the pump is characterized in that a rear side of the outer edge of the pump rear lining (12) protrudes to a rear side to form an arc-shaped rear sealing protrusion (12-1), a front side of the outer edge of the pump front lining (11) protrudes to a front side to form an arc-shaped front sealing protrusion (11-1), an arc-shaped rear positioning groove (6-1) used for accommodating the rear sealing protrusion (12-1) is formed in the front end face of the pump body (6), an arc-shaped front positioning groove (4-1) used for accommodating the front sealing protrusion (11-1) is formed in the rear end face of the pump cover (4), and the positioning gasket (14) is located on the outer sides of the rear positioning groove (6-1) and the front positioning groove (4-1).
5. The slurry pump of claim 1, wherein the slurry pump has adjustable direction and excellent overall performance, and further comprises: the adjusting mechanism further comprises a disc moving handle (19) and a disc moving belt wheel (18) arranged in front of the suction cover (8), the front end of the transmission shaft (17) and the disc moving belt wheel (18) are coaxially arranged and fixedly connected, a slot is formed in the side wall of the disc moving belt wheel (18), one end of the disc moving handle (19) is connected with the slot in an inserting mode, and the other end of the disc moving handle is a holding end.
6. The slurry pump of claim 1, wherein the slurry pump has adjustable direction and excellent overall performance, and further comprises: a bearing (20) is arranged between the transmission shaft (17) and the suction cover (8), and the bearing (20) is fixedly connected with the suction cover (8).
7. The slurry pump of claim 1, wherein the slurry pump has adjustable direction and excellent overall performance, and further comprises: an accommodating groove (21) is formed in the front end face of the front guard plate (5), and the outer cylindrical gear (15) and the inner cylindrical gear (16) are located in the accommodating groove (21).
8. The slurry pump of claim 1, wherein the slurry pump has adjustable direction and excellent overall performance, and further comprises: the outer wall of outer cylindrical gear (15) rear end outside extend to form into convex location edge, the location has seted up the locating hole on following, adjustment mechanism still includes positioning bolt (22), positioning bolt (22) pass behind the locating hole on the location edge with preceding backplate (5) threaded connection.
9. The slurry pump of claim 1, wherein the slurry pump has adjustable direction and excellent overall performance, and further comprises: an impeller front cover plate (23) is arranged between an impeller (3) and a front guard plate (5), a group of arc-shaped front back blades (24) are arranged on the front end face of the impeller front cover plate (23) along the circumferential direction, the front back blades (24) are fixedly connected with the impeller front cover plate (23), a gap is reserved between each front back blade (24) and the front guard plate (5), the distance between every two adjacent front back blades (24) is gradually increased from the inner end close to the axis of the impeller front cover plate (23) to the outer end close to the outer wall of the impeller front cover plate (23), and the bending extension direction of the outer end of each front back blade (24) is opposite to the screwing direction of the impeller front cover plate (23).
10. The slurry pump of claim 9, wherein the slurry pump has adjustable direction and excellent overall performance, and further comprises: the impeller front cover plate (23) comprises a shaft sleeve (23-1) and an annular plate body (23-2) fixed on the periphery of the shaft sleeve (23-1), a groove is formed in the front end face of the annular plate body (23-2), the front back blade (24) is located in the groove, and a gap d1 between the front back blade (24) and the front protection plate (5) is larger than a gap d2 between the shaft sleeve (23-1) and the front protection plate (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020656144.3U CN212055137U (en) | 2020-04-27 | 2020-04-27 | Slurry pump with adjustable direction and excellent overall performance |
| PE2021000599U PE20211666Z (en) | 2020-04-27 | 2021-04-27 | PULP PUMP WITH ADJUSTABLE DIRECTION AND EXCELLENT OVERALL PERFORMANCE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020656144.3U CN212055137U (en) | 2020-04-27 | 2020-04-27 | Slurry pump with adjustable direction and excellent overall performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212055137U true CN212055137U (en) | 2020-12-01 |
Family
ID=73518252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020656144.3U Active CN212055137U (en) | 2020-04-27 | 2020-04-27 | Slurry pump with adjustable direction and excellent overall performance |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN212055137U (en) |
| PE (1) | PE20211666Z (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396320A (en) * | 2020-04-27 | 2020-07-10 | 石家庄开发区石泵泵业有限公司 | Slurry pump with adjustable direction and excellent overall performance |
| CN112943678A (en) * | 2021-02-28 | 2021-06-11 | 东台市海鹏船舶配件有限公司 | Movable connection type rubber bearing |
-
2020
- 2020-04-27 CN CN202020656144.3U patent/CN212055137U/en active Active
-
2021
- 2021-04-27 PE PE2021000599U patent/PE20211666Z/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396320A (en) * | 2020-04-27 | 2020-07-10 | 石家庄开发区石泵泵业有限公司 | Slurry pump with adjustable direction and excellent overall performance |
| CN111396320B (en) * | 2020-04-27 | 2024-06-11 | 石家庄开发区石泵泵业有限公司 | Slurry pump with adjustable direction and excellent overall performance |
| CN112943678A (en) * | 2021-02-28 | 2021-06-11 | 东台市海鹏船舶配件有限公司 | Movable connection type rubber bearing |
| CN112943678B (en) * | 2021-02-28 | 2024-01-12 | 东台市海鹏船舶配件有限公司 | Movably connected rubber bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| PE20211666Z (en) | 2021-08-31 |
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