A vertical split-case pump impeller assembly device

Abstract

The present invention relates to a vertical split-center pump impeller assembly device, comprising: a support mechanism, the support mechanism comprises a base, a mounting seat, a support seat, a lifting roller, a guide rail, and a fixing mechanism are arranged on the base; a hydraulic mechanism is arranged inside the mounting seat, the hydraulic mechanism comprises an oil tank and a pressure-dividing oil pump, a travel cylinder connected to the pressure-dividing oil pump is arranged on the outer wall of the mounting seat, and the cylinder barrel of the travel cylinder is mounted on the support seat; the lifting roller is connected to the pressure-dividing oil pump and is provided with multiple groups for placing the pump shaft; guide rails are arranged on both sides of the lifting roller, and a translation vehicle for placing the impeller is movably arranged on the guide rail; an abutment mechanism for limiting the position of the impeller is arranged on the fixing mechanism, the abutment mechanism abuts against the impeller, and the pump shaft is inserted into the center hole of the impeller by the travel cylinder. It also comprises: a control mechanism, and the control mechanism is electrically connected to the pressure-dividing oil pump. A vertical split-center pump impeller assembly device of the present invention places the pump shaft horizontally, which is convenient for assembly and ensures concentricity; the hoisting process only requires lifting and translation, and no rotation.

Description

Technical Field

[0001] The invention relates to the technical field of water pumps, and in particular to an impeller assembly device for a vertical split-case pump. Background Art

[0002] A water pump is a mechanical device used to transport liquids or pressurize liquids. It transfers external kinetic energy to the liquid, allowing the liquid with increased energy to flow. According to the structure of the water pump, it can be divided into: centrifugal, plunger, diaphragm, etc. The liquid transported by the water pump is not only water, but also oil, acid, alkali, emulsion, suspension, and even liquid metal. The main parameters of the water pump include: head, flow, and power. At present, water pumps are mostly centrifugal structures, because centrifugal water pumps can: change the head and flow by simply processing the impeller, and the power is determined by the driving equipment of the input shaft. Therefore, the application of centrifugal water pumps is more suitable for actual requirements.

[0003] Vertical split case pump, where: vertical means the inlet and outlet are placed vertically, that is, the delivery pipeline is placed vertically, which conforms to the basic concept that the pump lifts the liquid vertically; split case means the pump chamber is divided into pump body and pump cover, the inlet and outlet are connected to the pump body, and the pump cover is removable for easy repair and maintenance.

[0004] At present, the assembly method of large vertical split case pumps is to insert the pump shaft directly into the center hole of the impeller through a vertical hydraulic press, and then install the pump shaft and impeller assembly horizontally in the pump body through lifting equipment. However, the conventional assembly method of large vertical water pumps still has the following shortcomings:

[0005] 1. The pump shaft is not easy to place vertically, resulting in non-concentricity when inserted into the impeller hole;

[0006] 2. During the lifting process, the pump shaft and impeller assembly need to be rotated as a whole, which is a large workload and there is a risk of damage. Summary of the invention

[0007] In order to solve the technical problems existing in the background technology, the present invention provides a vertical split-center pump impeller assembly device, which places the pump shaft horizontally to facilitate assembly and ensure concentricity; the lifting process only requires lifting and translation, and no rotation is required.

[0008] The technical solution adopted by the present invention is:

[0009] A vertical split-case pump impeller assembly device includes a support mechanism, which includes a horizontally arranged base, on which a mounting seat, a support seat, a lifting roller, a guide rail, and a fixing mechanism are arranged in sequence.

[0010] The mounting seat is provided with a hydraulic mechanism, which includes: an oil tank and a pressure-dividing oil pump connected thereto; a stroke cylinder is provided on the outer wall of the mounting seat, the stroke cylinder is connected to the pressure-dividing oil pump, and the cylinder barrel of the stroke cylinder is mounted on the support seat; the lifting rollers are provided with multiple groups for placing pump shafts, and the lifting cylinders of the lifting rollers are connected to the pressure-dividing oil pump; the guide rails are provided on both sides of the lifting rollers and are arranged in parallel with the fixing mechanism, and a translation vehicle is movably provided on the guide rails, and the translation vehicle is used to place the impeller; an abutment mechanism is provided on the fixing mechanism, the abutment mechanism abuts against the impeller to limit the position of the impeller, and the pump shaft is inserted into the center hole of the impeller through the stroke cylinder.

[0011] Also includes:

[0012] A control mechanism is electrically connected to the partial pressure oil pump.

[0013] Furthermore, the travel cylinder is hinged to the mounting seat to facilitate maintenance and replacement.

[0014] Furthermore, the fixing mechanism comprises:

[0015] A fixing seat fixedly connected to the mounting seat, wherein a convex plate is protruded from the upper end of the fixing seat away from the translation vehicle, and the convex plates are symmetrically arranged on both sides of the fixing seat.

[0016] Furthermore, side pin lower ears are protrudingly provided on both sides of the upper end of the fixing seat, the side pin lower ears are arranged on a side away from the convex plate, and a side pin rod is inserted into the side pin lower ears;

[0017] The convex plate is provided with a main pin hole through which a main pin rod is inserted.

[0018] Furthermore, the abutment mechanism comprises:

[0019] An abutment seat is arranged at the upper end of the fixed seat, and a through hole is penetrated on the abutment seat. An abutment convex ring is arranged at the end of the through hole close to the translation vehicle, and a fire door is arranged at the end of the through hole away from the translation vehicle. The fire door is hinged to the side wall of the abutment seat, and a connecting hole is arranged above the abutment seat, and the connecting hole is connected with the through hole. An extension seat is arranged on the abutment seat below the fire door, and the extension seat is inserted between the symmetrical convex plates.

[0020] Furthermore, side pin upper ears are protrudingly provided on both sides of the lower end of the abutment seat, the side pin upper ears and the side pin lower ears share a central axis, and a side pin rod is inserted into the side pin upper ears;

[0021] The extension seat is provided with a waist hole through which a main pin rod is inserted.

[0022] Furthermore, a fireproof plate is provided at the other end of the impeller hole abutting against the convex ring.

[0023] Furthermore, the connecting hole is arranged in an inclined shape, and the upper end of the connecting hole is sealed with a heating spray gun or a fireproof plate, which is used to heat the inner wall of the hole in the impeller and keep it warm respectively.

[0024] Furthermore, a guide rod is threadedly provided in the connecting screw hole of the pump body, and a plurality of guide rods are extended upward to facilitate positioning and installation of the pump cover.

[0025] A method for assembling an impeller of a vertical split case pump, comprising:

[0026] A. Place the impeller:

[0027] The impeller is placed on the translation vehicle by means of a lifting device, the piston rod of the stroke cylinder is extended by means of a control mechanism, the impeller is pushed to abut against the abutting convex ring, the hot spray gun is ignited, and penetrates into the through hole from the connecting hole, the piston rod of the stroke cylinder is retracted by means of a control mechanism, and the fireproof plate is placed at the middle hole of the impeller. During this process, the middle hole of the impeller is heated;

[0028] B. Place the pump shaft:

[0029] During the heating of the impeller center hole, the pump shaft is placed on the lifting roller by the lifting equipment, and a pin key is placed in the middle of the pump shaft, and sleeves are set at both ends of the pump shaft. The lifting cylinder of the lifting roller is controlled by the control mechanism to lift the pump shaft until it is coaxial with the impeller center hole;

[0030] C: Pump shaft and impeller assembly:

[0031] After the impeller center hole is heated, the hot spray gun in the through hole is removed from the connecting hole and extinguished, the fireproof plate is moved from the impeller center hole to the connecting hole, the piston rod of the stroke cylinder is controlled by the control mechanism to extend and abut against the sleeve at the end of the pump shaft, and the pump shaft is inserted from the impeller center hole. During this process, when the piston rod of the stroke cylinder reaches the vicinity of the lifting roller, the lifting cylinder of the lifting roller is controlled by the control mechanism to be lowered until the pump shaft is inserted into the impeller to the specified position, the combination of the pump shaft and the impeller is connected to the piston rod of the stroke cylinder through the lifting belt, and the piston rod of the stroke cylinder is controlled by the control mechanism to be retracted to pull out the pump shaft in the through hole;

[0032] D: Assembly of pump shaft and impeller:

[0033] Bearings are installed at both ends of the pump shaft. The combination of the pump shaft and impeller is placed in the pump body through lifting equipment. The bearing is clamped in the bearing seat. Multiple guide rods of different lengths are screwed into the upper connecting screw holes of the pump body. The pump cover is guided and placed on the pump body through lifting equipment. The guide rods are removed and bolts screwed to the connecting screw holes on the pump body are installed.

[0034] The advantages of the vertical split-case pump impeller assembly device of the present invention are:

[0035] 1. Place the impeller on the translation vehicle, and then use the guide rail and travel cylinder to achieve horizontal movement of the impeller on the translation vehicle;

[0036] 2. Place the pump shaft through the lifting roller and adjust the concentricity;

[0037] 3. Heat the inner wall of the impeller hole with a hot spray gun and keep it warm with a fireproof board to facilitate the insertion of the pump shaft into the impeller hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific implementation of the present invention, the drawings required in the specific implementation are briefly introduced below. The drawings in the following description are implementations of the present invention.

[0039] Figure 1 It is a general three-dimensional schematic diagram of a vertical split-case pump impeller assembly device provided by an example of the present invention;

[0040] Figure 2 It is a partially enlarged stereoscopic schematic diagram of a vertical split-case pump impeller assembly device provided by an example of the present invention;

[0041] Figure 3 The present invention provides a schematic diagram of heating the impeller center hole of a vertical split-center pump impeller assembly device according to an embodiment of the present invention;

[0042] Figure 4 The present invention provides a schematic diagram of pump shaft placement of a vertical split-case pump impeller assembly device;

[0043] Figure 5 The present invention provides a schematic diagram of the assembly of a pump shaft and an impeller of a vertical split-case pump impeller assembly device;

[0044] Figure 6 This is a schematic diagram of the completion of the assembly of a pump shaft and an impeller of a vertical split-case pump impeller assembly device provided by an example of the present invention;

[0045] Figure 7 The present invention provides a schematic diagram of the assembly of a pump shaft and an impeller of a vertical split-case pump impeller assembly device.

[0046] In the figure:

[0047] 1. Support mechanism,

[0048] 10. Base, 11. Mounting seat, 12. Support seat, 13. Fixing mechanism, 14. Guide rail,

[0049] 130, fixed seat, 131, side pin lower ear, 132, convex plate, 133, main pin hole, 134, side pin rod, 135, main pin rod,

[0050] 2. Stroke cylinder,

[0051] 3. Lifting roller,

[0052] 4. Translation car,

[0053] 5. Abutment mechanism,

[0054] 50. abutment seat, 51. through hole, 52. abutment convex ring, 53. fire door, 54. connecting hole, 55. waist hole, 56. extension seat, 57. side pin upper ear,

[0055] 6. Fireproof board,

[0056] 7. Heating spray gun,

[0057] 81. Oil tank, 82. Pressure-dividing oil pump,

[0058] 9. Guide rod. DETAILED DESCRIPTION

[0059] In order to more clearly and specifically explain the specific implementation purpose and implementation mode of the present invention, the technical solution of the present invention will be fully described below. The described embodiments are part of the embodiments of the present invention, but not all of them. Without making creative work, all other embodiments based on the embodiments described in the present invention belong to the protection scope of the present invention.

[0060] The present invention provides a vertical split-center pump impeller assembly device, such as Figure 1 As shown, it comprises: a supporting mechanism 1. The supporting mechanism 1 comprises: a horizontally arranged base 10, on which a mounting seat 11, a supporting seat 12, a lifting roller 3, a guide rail 14, and a fixing mechanism 13 are arranged in sequence.

[0061] The mounting seat 11 is provided with a hydraulic mechanism, and the hydraulic mechanism is as follows: Figure 1 As shown, it includes: an oil tank 81, and a pressure-dividing oil pump 82 connected thereto, a travel cylinder 2 is hingedly provided on the outer wall of the mounting seat 11, so that the piston rod of the travel cylinder 2 is upward, which is convenient for repairing the travel cylinder 2 and replacing wearing parts, the travel cylinder 2 is connected to the pressure-dividing oil pump 82, and the cylinder barrel of the travel cylinder 2 is mounted on the support seat 12; the lifting roller 3 is provided with multiple groups for placing the pump shaft, the lifting cylinder of the lifting roller 3 is connected to the pressure-dividing oil pump 82, and the lifting roller 3 is provided with a shooting switch on both sides, and the shooting switch is arranged on both sides of the piston rod of the travel cylinder 2 and is triggered by the piston rod of the travel cylinder 2; the guide rail 14 is arranged on both sides of the lifting roller 3, and is arranged in parallel with the fixing mechanism 13, and a translation vehicle 4 is movably provided on the guide rail 14, and the translation vehicle 4 is used to place the impeller; the fixing mechanism 13 is provided with an abutment mechanism 5, and the abutment mechanism 5 abuts against the impeller to limit the impeller position, and the pump shaft is inserted into the center hole of the impeller through the travel cylinder 2.

[0062] The fixing mechanism 13, such as Figure 2 As shown, including:

[0063] A fixing seat 130 fixedly connected to the mounting seat 11, the fixing seat 130 having an upper end away from the translation vehicle 4 protruding with a convex plate 132, the convex plates 132 being symmetrically arranged on both sides of the fixing seat 130; side pin lower ears 131 are protruding on both sides of the upper end of the fixing seat 130, the side pin lower ears 131 are arranged on the side away from the convex plate 132, and a side pin rod 134 is inserted into the side pin lower ears 131; a main pin hole 133 is penetrated through the convex plate 132, and a main pin rod 135 is inserted into the main pin hole 133.

[0064] Abutment mechanism 5, such as Figure 2 As shown, including:

[0065] An abutment seat 50 is arranged at the upper end of the fixed seat 130, and a through hole 51 is penetrated on the abutment seat 50. An abutment convex ring 52 is arranged at one end of the through hole 51 close to the translation vehicle 4, and a fireproof plate 6 is sealed at the other end of the impeller hole at the abutment convex ring 52. A fireproof door 53 is arranged at one end of the through hole 51 away from the translation vehicle 4, and the fireproof door 53 is hinged to the side wall of the abutment seat 50. A connecting hole 54 is arranged above the abutment seat 50, and the connecting hole 54 is arranged in an inclined shape, and a heating spray gun is sealed at the upper end of the connecting hole 54 7 or fireproof plate 6, which are respectively used to heat the inner wall of the impeller hole and keep warm. The connecting hole 54 is connected with the through hole 51. An extension seat 56 is provided on the abutment seat 50 below the fireproof door 53, and the extension seat 56 is inserted between the symmetrical convex plates 132; side pin upper ears 57 are protrudingly provided on both sides of the lower end of the abutment seat 50, and the side pin upper ear 57 and the side pin lower ear 131 have a central axis, and a side pin rod 134 is inserted in the side pin upper ear 57; a waist hole 55 is penetrated on the extension seat 56, and a main pin rod 135 is inserted in the waist hole 55.

[0066] like Figure 7 As shown, a guide rod 9 is threadedly provided in the connecting screw hole of the pump body, and a plurality of guide rods 9 are extended upward to facilitate the positioning and installation of the pump cover.

[0067] Also includes:

[0068] The control mechanism is electrically connected to the partial pressure oil pump 82 and the shooting switch respectively to realize automatic control.

[0069] According to the specific structure of the impeller assembly device of a vertical split case pump in the above embodiment, a method for assembling an impeller of a vertical split case pump is further described below:

[0070] A. Place the impeller, such as Figure 3 As shown:

[0071] The impeller is placed on the translation vehicle 4 by means of a lifting device, the piston rod of the stroke cylinder 2 is extended by means of a control mechanism, the impeller is pushed to abut against the abutting convex ring 52, the hot spray gun 7 is ignited, and penetrates into the through hole 51 through the connecting hole 54, the piston rod of the stroke cylinder 2 is retracted by means of a control mechanism, and the fireproof plate 6 is placed at the middle hole of the impeller. In this process, the middle hole of the impeller is heated;

[0072] B. Place the pump shaft, such as Figure 4 As shown:

[0073] During the heating of the impeller center hole, the pump shaft is placed on the lifting roller 3 by means of a lifting device, a pin key is placed in the middle of the pump shaft, and sleeves are provided at both ends of the pump shaft. The lifting cylinder of the lifting roller 3 is controlled by a control mechanism to lift the pump shaft until it is coaxial with the impeller center hole;

[0074] C: Pump shaft and impeller assembly, such as Figure 5 , Figure 6 As shown:

[0075] After the impeller center hole is heated, the hot spray gun 7 in the through hole 51 is removed from the connecting hole 54 and extinguished, the fireproof plate 6 is moved from the impeller center hole to the connecting hole 54, the piston rod of the stroke cylinder 2 is controlled by the control mechanism to extend and abut against the sleeve at the end of the pump shaft, and the pump shaft is inserted from the impeller center hole. During this process, when the piston rod of the stroke cylinder 2 reaches the vicinity of the lifting roller 3, the lifting cylinder of the lifting roller 3 is controlled by the control mechanism to be lowered until the pump shaft is inserted into the impeller to the specified position, the combination of the pump shaft and the impeller is connected to the piston rod of the stroke cylinder 2 through the lifting belt, and the piston rod of the stroke cylinder 2 is controlled by the control mechanism to be retracted, so that the pump shaft in the through hole 51 is extracted;

[0076] D: Assembly of pump shaft and impeller, such as Figure 7 As shown:

[0077] Bearings are installed at both ends of the pump shaft. The combination of the pump shaft and impeller is placed in the pump body through lifting equipment. The bearings are clamped in the bearing seat. Multiple guide rods 9 of different lengths are screwed into the upper connecting screw holes of the pump body. The pump cover is guided and placed on the pump body through lifting equipment, the guide rods 9 are removed, and the bolts screwed to the connecting screw holes on the pump body are installed.

[0078] Based on the above, the embodiment of the vertical split pump impeller assembly device of the present invention is inspired. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of ​​the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vertical split case pump impeller assembly device, characterized in that: include: Support mechanism (1), The supporting mechanism (1) comprises: A horizontally arranged base (10), wherein a mounting seat (11), a support seat (12), a lifting roller (3), a guide rail (14), and a fixing mechanism (13) are sequentially arranged on the base (10), The mounting seat (11) is provided with a hydraulic mechanism, which includes: an oil tank (81) and a pressure-dividing oil pump (82) connected thereto; a travel cylinder (2) is provided on the outer wall of the mounting seat (11), the travel cylinder (2) is connected to the pressure-dividing oil pump (82), and the cylinder barrel of the travel cylinder (2) is mounted on the support seat (12); the lifting roller (3) is provided with multiple groups for placing pump shafts, and the lifting cylinders of the lifting rollers (3) are connected to the pressure-dividing oil pump (82); the guide rails (14) are provided on both sides of the lifting rollers (3) and are arranged in parallel with the fixing mechanism (13); a translation vehicle (4) is movably provided on the guide rails (14), and the translation vehicle (4) is used to place an impeller; an abutment mechanism (5) is provided on the fixing mechanism (13), the abutment mechanism (5) abuts against the impeller to limit the position of the impeller, and the pump shaft is inserted into the center hole of the impeller through the travel cylinder (2); The fixing mechanism (13) comprises: A fixing seat (130) fixedly connected to the mounting seat (11), side pin lower ears (131) protruding from both sides of the upper end of the fixing seat (130), a convex plate (132) protruding from the upper end of the fixing seat (130) away from the translation vehicle (4), the convex plates (132) being symmetrically arranged on both sides of the fixing seat (130), the side pin lower ears (131) being arranged on a side away from the convex plates (132), a side pin rod (134) being inserted into the side pin lower ears (131), a main pin hole (133) being penetrated through the convex plate (132), and a main pin rod (135) being inserted into the main pin hole (133); The abutment mechanism (5) comprises: An abutment seat (50) is arranged at the upper end of the fixed seat (130), the abutment seat (50) is penetrated by a through hole (51), an abutment convex ring (52) is arranged at one end of the through hole (51) close to the translation vehicle (4), a fire door (53) is arranged at one end of the through hole (51) away from the translation vehicle (4), the fire door (53) is hinged to the side wall of the abutment seat (50), a connecting hole (54) is arranged above the abutment seat (50), the connecting hole (54) is arranged in an inclined shape, and a heating spray gun (7) or a fireproof plate (6) is sealed at the upper end of the connecting hole (54), respectively for heating The inner wall of the hot impeller hole is heat-insulated, the connecting hole (54) is connected to the through hole (51), an extension seat (56) is provided on the abutment seat (50) below the fire door (53), the extension seat (56) is inserted between the symmetrical convex plates (132), a waist hole (55) is provided through the extension seat (56), a main pin rod (135) is inserted in the waist hole (55), side pin upper ears (57) are protruding on both sides of the lower end of the abutment seat (50), the side pin upper ear (57) and the side pin lower ear (131) have a central axis, and a side pin rod (134) is inserted in the side pin upper ear (57); Also includes: A control mechanism is electrically connected to the partial pressure oil pump (82).

2. A vertical split case pump impeller assembly device according to claim 1, characterized in that: The travel cylinder (2) and the mounting seat (11) are hingedly connected to facilitate maintenance and replacement.

3. A vertical split case pump impeller assembly device according to claim 1, characterized in that: The other end of the impeller center hole at the abutting convex ring (52) is sealed with a fireproof plate (6).

4. A vertical split case pump impeller assembly device according to claim 1, characterized in that: A guide rod (9) is threadedly provided in the connection screw hole of the pump body, and a plurality of guide rods (9) are extended upward to facilitate positioning and installation of the pump cover.

5. A method for assembling an impeller of a vertical split case pump, according to the device for assembling an impeller of a vertical split case pump according to claim 4, characterized in that: A. Place the impeller: The impeller is placed on the translation vehicle (4) by means of a lifting device, the piston rod of the stroke cylinder (2) is extended by means of a control mechanism, the impeller is pushed until it abuts against the abutting convex ring (52), the heating spray gun (7) is ignited, and penetrates into the through hole (51) through the connecting hole (54), the piston rod of the stroke cylinder (2) is retracted by means of a control mechanism, and the fireproof plate (6) is placed at the center hole of the impeller. During this process, the center hole of the impeller is heated; B. Place the pump shaft: During the heating of the impeller center hole, the pump shaft is placed on the lifting roller (3) by means of a lifting device, a pin key is placed in the middle of the pump shaft, and shaft sleeves are sleeved at both ends of the pump shaft. The lifting cylinder of the lifting roller (3) is controlled by a control mechanism to lift the pump shaft until the axis is coaxial with the impeller center hole; C: Pump shaft and impeller assembly: After the impeller center hole is heated, the heating spray gun (7) in the through hole (51) is removed from the connecting hole (54) and extinguished, the fireproof plate (6) is moved from the impeller center hole to the connecting hole (54), the piston rod of the stroke cylinder (2) is controlled by the control mechanism to extend and abut against the sleeve at the end of the pump shaft, and the pump shaft is inserted from the impeller center hole. During this process, when the piston rod of the stroke cylinder (2) reaches the vicinity of the lifting roller (3), the lifting cylinder of the lifting roller (3) is controlled by the control mechanism to be lowered until the pump shaft is inserted into the impeller to a specified position, the pump shaft and impeller assembly is connected to the piston rod of the stroke cylinder (2) through the lifting belt, and the piston rod of the stroke cylinder (2) is controlled by the control mechanism to be retracted, so that the pump shaft in the through hole (51) is extracted; D: Assembly of pump shaft and impeller: Bearings are installed at both ends of the pump shaft. The pump shaft and impeller assembly is placed in the pump body by lifting equipment. The bearing is clamped in the bearing seat. A plurality of guide rods (9) of different lengths are screwed into the upper connecting screw holes of the pump body. The pump cover is guided and placed on the pump body by lifting equipment. The guide rods (9) are removed and bolts screwed into the upper connecting screw holes of the pump body are installed.

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