CN210505218U

CN210505218U - Lifting appliance for lifting large crankshaft electroplated part of civil ship

Info

Publication number: CN210505218U
Application number: CN201921371059.6U
Authority: CN
Inventors: 田家华; 刘林琳; 丁有銮
Original assignee: Dalian Xinke Crankshaft Repair Co Ltd
Current assignee: Dalian Xinke Crankshaft Repair Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-05-12
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses a hoist for hoisting civil ships's large-scale bent axle plated item belongs to hoist and mount technical field. In particular to a clamping tool for hoisting a large-scale crankshaft electroplated part of a civil ship. Comprises a balance suspension beam, a slow release suspension and a clamping component which are connected in sequence. The length of the balance suspension beam is matched with the clamping and holding assembly, and the middle part of the upper end of the balance suspension beam is provided with a lifting lug which is connected with a lifting hook of the crane. The slow-release suspension devices are arranged in pairs and are respectively connected with the balance suspension beam and the two ends of the clamping and holding assembly. The clamping and holding assembly is connected with a crankshaft journal. The lifting appliance is simple in design structure, stable in lifting and easy to implement, electroplating repair quality of the shaft parts is guaranteed, delivery period is shortened, and market competitiveness of enterprises is enhanced.

Description

Lifting appliance for lifting large crankshaft electroplated part of civil ship

Technical Field

The utility model relates to an electroplate clamping frock in hoist and mount field especially relates to a hoist and mount clamping frock of large-scale bent axle plated item of civilian boats and ships.

Background

The crank shaft of the civil ship is a part which is easy to wear, and the worn crank shaft can influence the working condition of an engine and possibly cause serious accidents. The crankshaft is high in manufacturing cost, and electroplating is a common method for repairing the crankshaft. The crank shaft of the civil ship is generally longer and heavier, and a large well-type plating tank is suitable for electroplating repair. Because the gravity center of the worn crankshaft is deviated and lateral rotating force exists, the plating is difficult to vertically and stably hoist.

In the traditional crankshaft type electroplated part hoisting, if a screw hole is formed at the shaft end, the hoisting is carried out by adopting a screw cross arm, and the screw top hoisting of a ring arranged at the shaft end is not firm; if the shaft end is not provided with the screw hole, the head and the clamp are adopted, the clamping is time-consuming, and the shaft part can rotate to influence the quality of an electroplating coating. Therefore, a stable, rapid and safe workpiece hoisting is needed to meet the requirement of the processing quality of electroplating repair of large shaft parts, guarantee the delivery date and enhance the market competitiveness of enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hoist for hoisting civil ships's large-scale bent axle plated item can effectively solve the easy rotation that takes place of axle class spare that proposes in the above-mentioned background art, connects insecurely, the problem of inefficiency.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hoist for hoisting civil ships's large-scale bent axle plated item, hangs in midair and presss from both sides and embraces the subassembly including consecutive balanced hanging beam, slowly-releasing, balanced hanging beam length with press from both sides and embrace the subassembly phase-match, the upper end middle part sets up the lug, links to each other with the lifting hook of hoist. The slow-release suspension devices are arranged in pairs and are respectively connected with the balance suspension beam and the two ends of the clamping and holding assembly. The clamping assembly is connected to the crankshaft journal, preferably to the second journal. By adopting the structure, the lateral deflection of the crankshaft can be effectively avoided, and the plated part is kept stable during plating.

The clamping and embracing assembly comprises a clamping and embracing body, a connecting bolt and a fastening bolt, wherein the clamping and embracing body is horizontally arranged oppositely, clamping and embracing with the shaft neck are realized through opening and closing in the horizontal direction, and an embracing part, a clamping part and a connecting part are sequentially arranged from the middle part to the end part; the encircling part is provided with an inward concave radian smaller than 180 degrees so that the clamping body is more attached to the shaft neck. The clamping part is provided with a through hole, the aperture of the through hole is matched with that of the fastening bolt, and the clamping body is clamped tightly to the shaft neck by screwing the fastening bolt. The connecting part is recessed in the clamping part and is provided with a through hole, and the aperture of the through hole is matched with that of the connecting bolt. The connecting bolt is detachably connected with the slow-release suspension.

Further, the slow release suspension comprises an insulation component and a flexible steel rope, wherein the insulation component is connected with the middle part or the end part of the flexible steel rope. So as to ensure the insulation of the upper part of the lifting appliance in the plating process.

Furthermore, the insulation assembly comprises a plastic bearing, a shaft pin and a U-shaped buckle, the shaft pin penetrates through the plastic bearing and is connected with two ends of the U-shaped buckle, the plastic bearing is provided with a groove, and the groove is used for allowing the flexible steel rope to pass through.

Furthermore, in order to adapt to different shaft neck sizes, a plurality of pairs of through holes are arranged on the clamping part.

Furthermore, flat fiber hanging strips are arranged on two sides of the upper end of the balance suspension beam, and the length of each flat fiber hanging strip is equal to the sum of the distances from the set point to the top end of the lifting hook. Hang on the lifting hook in the hoist and mount process in order to play supplementary anti-unbalance rotation function.

The utility model has the advantages that:

1. the structure is simple. The utility model discloses the used material is simple easily obtained, the cost is reduced effectively.

2. And the hoisting is stable. Adopt the utility model discloses hoist and mount bent axle, press from both sides the body and can press from both sides the second journal that makes it press from both sides and embrace more firmly at the bent axle, slowly-releasing suspend in midair and flat fibre suspender can play supplementary unbalance-proof rotation function. So that the hoisting is stable and reliable.

3. Is easy to implement. Adopt the utility model discloses in the implementation of hoist and mount suspension plating, keep flat the work ground at the bent axle and can carry out the clamping, reduced workman's intensity of labour effectively and practiced thrift the activity duration.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.

Fig. 3 is a front view of the insulation assembly.

Number in the figure: 1. a crane hook; 2. a balance suspension beam; 21. lifting lugs; 22. a flat fiber sling; 3. slowly releasing and suspending; 31. an insulating assembly; 32. a groove; 33. a plastic bearing; 34. a shaft pin; 35, a U-shaped buckle; 4. a clamping assembly; 41. a clipping body; 42. a connecting bolt; 43. fastening a bolt; 44. concave radian; 45. a through hole; 5. a crankshaft.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, beneficial effect are easily understood and known, the utility model discloses further explain below with the accompanying drawing:

the lifting appliance for lifting the large-scale crankshaft electroplated part of the civil ship comprises a balance suspension beam 2, a slow-release suspension 3 and a clamping and holding assembly 4 which are sequentially connected, wherein the length of the balance suspension beam is matched with the clamping and holding assembly, and a lifting lug 21 is arranged in the middle of the upper end of the balance suspension beam and connected with a crane lifting hook 1. The slow-release suspension 3 is arranged in pairs and is respectively connected with the balance suspension beam 2 and the two ends of the clamping and holding component 4. The clamping assembly is connected to a journal of the crankshaft 5, preferably to a second journal. By adopting the structure, the lateral deflection of the crankshaft can be effectively avoided, and the plated part is kept stable during plating.

Further, the clamping and embracing assembly 4 comprises a clamping and embracing body 41, a connecting bolt 42 and a fastening bolt 43, wherein the clamping and embracing body 41 is horizontally arranged oppositely, clamping and embracing with the shaft neck are realized through opening and closing in the horizontal direction, and an embracing part, a clamping part and a connecting part are sequentially arranged from the middle part to the end part; the surrounding part is provided with an inward concave radian 44 smaller than 180 degrees, so that the clamping and surrounding body 41 is more attached to the shaft neck. The clamping part is provided with a through hole 45, the hole diameter of the through hole is matched with that of the fastening bolt 43, and the clamping body 41 tightly holds the shaft neck by screwing the fastening bolt 43. The connecting part is recessed in the clamping part and is provided with a through hole, and the aperture of the through hole is matched with that of the connecting bolt 42. The connecting bolt 42 is detachably connected with the slow-release suspension 3.

Further, to ensure insulation of the upper part of the spreader during the start-up, the slow release suspension 3 comprises a flexible steel cord and an insulation member 31, wherein the insulation member 31 is connected to the middle or end part of the flexible steel cord, in this embodiment shown connected to the middle part of the flexible steel cord.

Further, the insulation assembly 31 comprises a plastic bearing 33, a shaft pin 34 and a U-shaped buckle 35, wherein the shaft pin 34 passes through the plastic bearing 33 and is connected with two ends of the U-shaped buckle 35, the plastic bearing 33 is provided with a groove 32, and the groove 32 is used for passing through the flexible steel rope.

Further, in order to accommodate different journal sizes, a plurality of pairs of through holes 45 are provided in the clamping portion.

Furthermore, flat fiber straps 22 are arranged on two sides of the upper end of the balance suspension beam 2, and the length of each flat fiber strap 22 is equal to the sum of the distances from the set point to the top end of the hook. The lifting hook is hung on the crane lifting hook 1 in the lifting process to achieve the function of assisting in preventing unbalanced rotation.

Adopt the utility model discloses install earlier in the implementation of electroplating bent axle's clamping suspension plating and press from both sides and embrace subassembly 4, press from both sides the dress when bent axle 5 puts the floor flat, preferably select bent axle 5's second journal, the journal surface will be done the protection and is handled to the journal surface in order to hinder the journal surface with the clamp. The clamping body 41 clamps the shaft neck by screwing the fastening bolt 43, and the slow-release suspension 3 is connected by the connecting bolt 42. After the clamping and holding assembly 4, the slow-release suspension 3, the lifting lug 21 and the flat fiber hanging strip 22 are connected in sequence, the crankshaft 5 can be placed in a groove for plating by slowly lifting with a crane and paying attention to the stability of the crankshaft 5 and the lifting lug.

The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the design of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a hoist for hoisting civil ships's large-scale bent axle plated item, includes consecutive balanced cantilever beam (2), and the slowly-releasing suspends (3) in midair and presss from both sides and embrace subassembly (4), its characterized in that: the length of the balance suspension beam (2) is matched with that of the clamping and holding assembly (4), and a lifting lug (21) is arranged in the middle of the upper end of the balance suspension beam; the slow-release suspension devices (3) are arranged in pairs and are respectively connected with the two ends of the balance suspension beam (2) and the clamping and holding assembly (4).

2. The spreader of claim 1, wherein: the clamping and embracing component (4) comprises clamping and embracing bodies (41), connecting bolts (42) and fastening bolts (43) which are oppositely arranged, wherein the clamping and embracing bodies (41) are sequentially provided with an embracing part, a clamping part and a connecting part from the middle part to the end part; the encircling part is provided with an inward concave radian (44) smaller than 180 degrees, the clamping part is provided with a through hole (45), the aperture is matched with the fastening bolt (43), the connecting part is inward concave in the clamping part, a through hole is arranged on the clamping part, and the aperture is matched with the connecting bolt (42).

3. The spreader of claim 2, wherein: the slow-release suspension (3) comprises a flexible steel rope and an insulating component (31), wherein the insulating component (31) is connected with the middle part or the end part of the flexible steel rope.

4. The spreader of claim 3, wherein: the insulation assembly (31) comprises a plastic bearing (33), a shaft pin (34) and a U-shaped buckle (35), the plastic bearing (33) is provided with a groove (32), and the shaft pin (34) penetrates through the plastic bearing (33) and is connected with two ends of the U-shaped buckle (35).

5. The spreader of any of claims 2 to 4, wherein: the clamping part is provided with a plurality of pairs of through holes (45).

6. The spreader of claim 5, wherein: and flat fiber hanging strips (22) are arranged on two sides of the upper end of the balance suspension beam (2).