Centrifugal pump impeller carrying clamp

Abstract

The utility model relates to the technical field of clamps, and discloses a centrifugal pump impeller carrying clamp which comprises an installation disc, a hinge plate, a clamping jaw and a connecting plate, a connecting base is fixed to the upper end of the installation disc through a bolt, the installation disc comprises a disc face, the disc face is round, a plurality of rod holes are distributed in the disc face at equal angles at intervals, and an installation hole is formed in the center of the disc face. A plurality of fixing lugs are distributed at the bottom end of the disc surface at equal-angle intervals, and the number of the fixing lugs is the same as that of the rod holes; a push-pull rod is vertically arranged in a rod hole in the disc face in a clearance fit mode, the upper end of the push-pull rod extends to the position above the connecting base, and the lower end of the push-pull rod extends to the side of the fixing lug. The outer side of the bottom end of the push-pull rod is hinged to the upper portion of the clamping jaw through a connecting plate, and the upper portion of the hinged plate is fixed to the fixing lug through a plurality of bolts. According to the utility model, the centrifugal pump impeller can be quickly clamped, the carrying is assisted, the clamping is reliable, the operation is simple, and the efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, especially relates to a centrifugal pump impeller carrying clamp. BACKGROUND

[0002] The centrifugal pump impeller is one of the core components of the centrifugal pump, which directly affects the flow, lift and efficiency of the centrifugal pump. The centrifugal pump impeller is mainly composed of blades, front cover plates, rear cover plates and hubs, and forms a closed flow passage between the front cover plates, the rear cover plates and the blades for conveying liquid. The centrifugal pump impeller needs to be carried during production or processing. In the existing operation, a steel wire rope is usually used to pass through the middle wheel hole for fixation, which not only has low operation efficiency, but also easily damages the impeller.

[0003] In the prior art, there are also some centrifugal pump impeller clamps, such as the Chinese utility model patent with the application number CN202020777746.4 and the name of centrifugal pump impeller micro-polishing tool clamp, which drives the cross rod through the cam locking mechanism, drives the pull rod through the cross rod, and finally locks and fixes the impeller between the two positions through the clamping cooperation between the fixed clamping plate and the movable clamping plate. However, it mainly clamps the centrifugal pump impeller from the outer ring, which is easy to fall off during carrying.

[0004] For example, the Chinese invention patent with the application number CN202410933351.1 and the name of a positioning clamp for numerical control machining of a centrifugal pump impeller, which moves the movable block through the sliding cooperation of the clamping block and the sliding hole, and moves the clamping block through the screw rod, so that the three clamping blocks contact the periphery of the impeller, and the impeller is clamped and fixed. However, it also clamps the centrifugal pump impeller from the outer ring, which is easy to fall off during carrying. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a centrifugal pump impeller carrying clamp, which can quickly clamp the centrifugal pump impeller, assist in carrying, and has reliable clamping, simple operation and high efficiency.

[0006] The utility model discloses the following technical scheme realizes: a centrifugal pump impeller handling fixture, including mounting disc, hinged plate, clamping jaw and connecting plate, the mounting disc upper end is fixed with connecting seat through bolt, the mounting disc includes disc face, the disc face is circular, and a plurality of rod holes are distributed with equiangular interval on the disc face, the disc face central portion is provided with mounting hole, the disc face bottom equiangular interval distribution has a plurality of fixed lug, and the number of fixed lug is same with the number of rod hole, the rod hole on the disc face is vertically provided with push-pull rod through clearance fit, and the upper end of push-pull rod is stretched to the top of connecting seat, and the lower end of push-pull rod extends to the side of fixed lug, the bottom outside of push-pull rod is hinged with the upper portion of clamping jaw through connecting plate, the upper portion of hinged plate is fixed on fixed lug through a plurality of bolts, and the lower portion of hinged plate is hinged in the upper portion of clamping jaw, and the upper portion of clamping jaw is pushed and pulled by connecting plate in the vertical up-and-down movement of push-pull rod in rod hole, so that the clamping jaw is opened and closed around the hinge part of hinged plate.

[0007] Further, the number of clamping jaws is same with the number of rod holes, and each has 3-6.

[0008] Further, the clamping jaw includes a jaw body, a through slot and a jaw sleeve, the jaw sleeve is fixed on the upper end of the jaw body by bolts, and the jaw body is provided with a through slot in the center.

[0009] Further, a claw tip is fixed on the inner side of each jaw body, the upper part of the claw tip is horizontal, the lower part is upwardly inclined and curved, and the front part of the claw tip is arc-shaped.

[0010] Further, the inner claw body on the inner side of each jaw body and the outer claw body on the outer side are outwardly curved in arc shape.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. The centrifugal pump impeller handling fixture of the utility model is characterized in that the push-pull rod is vertically moved up and down in the rod hole, the upper part of the clamping jaw is pushed and pulled by the connecting plate, the clamping jaw is opened and closed around the hinge part of the hinged plate, the centrifugal pump impeller is loosened or clamped, and the centrifugal pump impeller is quickly clamped and fixed, thereby achieving rapid clamping and fixing of the centrifugal pump impeller and assisting in handling, which is simple in operation and high in efficiency.

[0013] 2. The centrifugal pump impeller handling fixture of the utility model is characterized in that when the clamping jaw is closed around the hinge part of the hinged plate, the claw tip on the inner side of the jaw body can be inserted into the outer ring bottom end of the centrifugal pump impeller, the bottom end of the centrifugal pump impeller is supported, the clamping and fixing effect of the centrifugal pump impeller is improved, and the centrifugal pump impeller is prevented from falling during handling. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the centrifugal pump impeller handling fixture of the utility model;

[0015] Figure 2 is the front view of the centrifugal pump impeller carrying clamp of the utility model;

[0016] Figure 3 is the plan view of the centrifugal pump impeller carrying clamp of the utility model;

[0017] Figure 4 is the connection structure schematic view of the push-pull rod, the hinged plate, the clamping jaw and the connecting plate in the utility model;

[0018] Figure 5 is the structure schematic view of the mounting disc in the utility model;

[0019] Figure 6 is the front view when the utility model is used for carrying the centrifugal pump impeller;

[0020] Figure 7 is the structure schematic view of the clamping jaw in the embodiment two of the utility model;

[0021] Figure 8 is the structure schematic view when the clamping jaw in the embodiment two of the utility model is used for clamping the centrifugal pump impeller.

[0022] In the drawing: connecting seat-1; mounting disc-2; push-pull rod-3; hinged plate-4; clamping jaw-5; connecting plate-6; centrifugal pump impeller-7; disc surface-21; mounting hole-22; rod hole-23; fixed lug-24; jaw body-51; through slot-52; jaw sleeve-53; outer jaw body-511; inner jaw body-512; jaw tip-513. DETAILED DESCRIPTION

[0023] The other advantages and effects of the utility model can be easily understood by the person skilled in the art from the content disclosed in the specification. The utility model can also be implemented or applied by another different specific embodiment, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict.

[0024] The utility model aims at the defects of the prior art, and provides a centrifugal pump impeller carrying clamp.

[0025] Embodiment one

[0026] The embodiment provides a centrifugal pump impeller carrying clamp, which is referred to as Figures 1-5As shown, including the mounting disc 2, hinged plate 4, jaw 5 and connecting plate 6, the upper end of the mounting disc 2 is fixed with connecting seat 1 by bolts, the mounting disc 2 comprises disc face 21, the disc face 21 is circular, a plurality of rod holes 23 are distributed at equal angles on the disc face 21, the disc face 21 is provided with a mounting hole 22 in the center, a plurality of fixing ears 24 are distributed at equal angles on the bottom end of the disc face 21, the number of fixing ears 24 is the same as that of rod holes 23; the push-pull rod 3 is vertically arranged in the rod hole 23 on the disc face 21 through clearance fit, the upper end of the push-pull rod 3 extends above the connecting seat 1, and the lower end of the push-pull rod 3 extends to the side of the fixing ear 24. The bottom end of the push-pull rod 3 is hinged between the upper part of the jaw 5 and the outside through the connecting plate 6, the upper part of the hinged plate 4 is fixed on the fixing ear 24 through a plurality of bolts, and the lower part of the hinged plate 4 is hinged to the upper part of the jaw 5. In the vertical up-and-down movement of the push-pull rod 3 in the rod hole 23, the upper part of the jaw 5 is pushed and pulled by the connecting plate 6, so that the jaw 5 is opened and closed around the hinge part of the hinged plate 4. The number of jaw 5 is the same as that of rod hole 23, which is 3-6, and the number of jaw 5 and rod hole 23 in the embodiment is 5. The jaw 5 comprises a jaw body 51, a through slot 52 and a jaw sleeve 53, the jaw sleeve 53 is fixed on the upper end of the jaw body 51 by bolts, and the through slot 52 is arranged in the center of the jaw body 51.

[0027] Referring to Figure 6 As shown, the centrifugal pump impeller carrying clamp of the utility model is used for carrying the centrifugal pump impeller 7, moving the whole to the upper side of the centrifugal pump impeller 7, driving the push-pull rod 3 to move vertically downward in the rod hole 23 by the driving equipment, the driving equipment uses the cylinder driving equipment or other driving equipment in the prior art, the upper part of the jaw 5 is pushed by the connecting plate 6, so that the jaw 5 is opened around the hinge part of the hinged plate 4. Then the whole is moved downward, so that the jaw body 51 in the five jaw 5 is distributed on the outside of the centrifugal pump impeller 7, then the push-pull rod 3 is driven to move vertically upward in the rod hole 23, the upper part of the jaw 5 is pulled by the connecting plate 6, so that the jaw 5 is closed around the hinge part of the hinged plate 4 and clamps the centrifugal pump impeller 7, realizing the clamping of the centrifugal pump impeller 7 and assisting the carrying work.

[0028] Embodiment two

[0029] The embodiment provides a centrifugal pump impeller carrying clamp, which is based on the structure of embodiment one, and refers to Figures 7-8As shown, the inner side of each claw body 51 is fixed with a claw tip 513, the upper part of the claw tip 513 is horizontal, the lower part is upwardly inclined and curved, and the front part of the claw tip 513 is arc-shaped, so that when the clamping jaw 5 is closed around the hinge part of the hinge plate 4, the claw tip 513 on the inner side of the claw body 51 can extend into the bottom end of the outer circle of the centrifugal pump impeller 7 to support the bottom end of the centrifugal pump impeller 7, more easily achieve clamping, can improve the clamping effect of the centrifugal pump impeller 7, avoid the centrifugal pump impeller 7 from falling during the carrying process. The inner claw body 512 on the inner side of each claw body 51 and the outer claw body 511 on the outer side are both outwardly curved and arc-shaped, so that when the claw body 51 is tightened inward to clamp the centrifugal pump impeller 7, the inner claw body 512 will not knock against the outer end of the centrifugal pump impeller 7.

[0030] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A centrifugal pump impeller handling fixture, characterized by: The utility model provides a kind of clamp, including installation disc (2), hinged plate (4), clamping jaw (5) and connecting plate (6), the connecting seat (1) is fixed with bolt on the upper end of the installation disc (2), the installation disc (2) includes disc face (21), the disc face (21) is circular, and several rod holes (23) are distributed at equiangular intervals on disc face (21), the installation hole (22) is arranged in the center of disc face (21), and several fixed ears (24) are distributed at equiangular intervals on the bottom end of disc face (21), and the number of fixed ear (24) is same with the number of rod hole (23);The push-pull rod (3) is vertically arranged in the rod hole (23) on the disc face (21) by clearance fit, and the upper end of push-pull rod (3) extends above the connecting seat (1), and the lower end of push-pull rod (3) extends to the side of fixed ear (24); The bottom end outside of push-pull rod (3) and the upper portion of clamping jaw (5) are hinged by connecting plate (6), the upper portion of hinged plate (4) is fixed on fixed ear (24) by several bolts, and the lower portion of hinged plate (4) is hinged on the upper portion of clamping jaw (5), and push-pull rod (3) moves vertically up and down in rod hole (23), and the upper portion of clamping jaw (5) is pushed and pulled by connecting plate (6), so that clamping jaw (5) is opened and closed around the hinge portion of hinged plate (4).

2. The centrifugal pump impeller handling clamp of claim 1, wherein: The number of clamping jaw (5) is same with the number of rod hole (23), and there are 3-6 respectively.

3. The centrifugal pump impeller handling clamp of claim 1 or 2, wherein: The clamping jaw (5) includes claw body (51), through slot (52) and claw sleeve (53), the claw sleeve (53) is fixed on the upper end of claw body (51) by bolt, and the through slot (52) is arranged in the center of claw body (51).

4. The centrifugal pump impeller handling clamp of claim 3, wherein: Claw tip (513) is fixed inside each claw body (51), and the upper portion of claw tip (513) is horizontal, and the lower portion is inclined and curved upwards, and the front portion of claw tip (513) is arc-shaped.

5. The centrifugal pump impeller handling clamp of claim 4, wherein: The inner claw body (512) inside each claw body (51) and the outer claw body (511) outside are arc-shaped and curved outward.

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