CN212712380U - Horizontal hoisting device for coarse and short shafts - Google Patents
Horizontal hoisting device for coarse and short shafts Download PDFInfo
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- CN212712380U CN212712380U CN202021472107.3U CN202021472107U CN212712380U CN 212712380 U CN212712380 U CN 212712380U CN 202021472107 U CN202021472107 U CN 202021472107U CN 212712380 U CN212712380 U CN 212712380U
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Abstract
The utility model discloses a thick stub axle horizontal hoisting device, including handling axle, clamping jaw locking mechanism, two sets of clamping jaw subassembly and two sets of handling mechanism, the clamping jaw piece in the middle of every clamping jaw subassembly of group sets up with the clamping jaw piece symmetry of both sides, and the clamping jaw subassembly lower extreme grasps the both ends of thick stub axle respectively, and each clamping jaw piece of handling axle both ends clamping jaw group is articulated each other. The lifting mechanism is symmetrically arranged on a lifting shaft between the two groups of clamping jaw assemblies, and the clamping jaw locking mechanism is transversely arranged at the upper end of each group of clamping jaw assemblies. The utility model discloses simple structure, compactness, positioning accuracy is high, has improved handling quality, handling security and the handling efficiency of thick stub axle greatly, has alleviateed workman's intensity of labour.
Description
Technical Field
The utility model relates to a overhead hoist of axle type part, in particular to overhead hoist of thick stub axle belongs to axle type part jack-up technical field.
Background
The coarse short shaft part is a shaft with the diameter of more than 300mm and the length-diameter ratio of less than 1.8, for example, the outer diameter of a cylinder blank of a crosshead pin of a certain type of marine low-speed diesel engine is phi 500mm, the length is 900mm, and the mass of the cylinder blank reaches 1250 kg. The lifting lug for lifting can not be additionally arranged on the cylindrical blank, and the lifting is very difficult. The traditional hoisting method is to use a hoisting special-purpose hoisting belt to wind the middle cross section of a cylindrical blank for a circle and tie and tighten the middle cross section of the cylindrical blank for hoisting, and the hoisting method has the following problems: 1. the lifting belt special for lifting is difficult to wind outside the cross section of the center of gravity of the cylinder blank, so that the moments at two ends of the cylinder blank are unequal during lifting, the cylinder blank is difficult to be in a balanced horizontal state, and the difficulty in positioning and clamping the cylinder blank on a machine tool is increased. 2. The lifting special sling is very hard to tighten, and the labor intensity of workers is increased. 3. Potential safety hazards are large during lifting, safety of workpieces, equipment and personnel is seriously affected, and lifting efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a thick short axle hoisting device improves the security of handling efficiency and handling.
The utility model discloses a following technical scheme realizes:
a horizontal hoisting device for thick and short shafts comprises a hoisting shaft, a clamping jaw locking mechanism, two groups of clamping jaw assemblies and two groups of hoisting mechanisms, wherein each group of clamping jaw assemblies comprises three clamping jaw pieces which are same in shape and are S-shaped, copper sleeves are embedded in the middle of the clamping jaw pieces, the clamping jaw pieces in the middle of each group of clamping jaw assemblies are symmetrically arranged with the clamping jaw pieces on two sides, and thrust bearings are respectively arranged between the copper sleeves of the three clamping jaw pieces arranged side by side and on the outer sides of the clamping jaw pieces on two sides; the lower ends of the clamping jaw components respectively clamp two ends of the coarse and short shafts; two ends of the hoisting shaft respectively penetrate through the copper sleeves and the thrust bearings of the two groups of clamping jaw assemblies, and nuts are respectively screwed on the end heads at the two ends of the hoisting shaft for limiting, so that the clamping jaw pieces of the clamping jaw assemblies are respectively hinged with each other; the lifting mechanisms are symmetrically arranged on a lifting shaft between the two groups of clamping jaw assemblies, and the clamping jaw locking mechanisms are transversely arranged at the upper end of each group of clamping jaw assemblies; the lower ends of the clamping jaw sheets at two sides and the lower end of the clamping jaw sheet in the middle respectively form jaws for clamping two ends of the thick and short shaft, the two groups of clamping jaw assemblies are arranged in a mode that two clamping jaw sheets at the outer sides are arranged diagonally, and the thick and short shaft in a horizontal state is clamped by one clamping jaw sheet in the middle in a diagonal arrangement mode.
The object of the invention is further achieved by the following technical measures.
Furthermore, a V-shaped transverse plate extends out of the middle of the inner side of the arc at the lower part of the clamping jaw piece towards the direction of the arc center, and when the clamping jaw assembly clamps the horizontal coarse and short shafts, the notch of the V-shaped transverse plate oppositely clamps one end of the horizontal coarse and short shafts.
Further, the hoisting mechanism comprises a hoisting ring and a hoisting seat, a hoisting seat screw rod extends out of the lower end of the hoisting seat, the hoisting seat screw rods are respectively and vertically screwed into two ends of the hoisting shaft, and the hoisting seat is respectively positioned at the inner side of the corresponding clamping jaw assembly; the lower end of the lifting ring is hinged with the upper end of the lifting seat.
Furthermore, the clamping jaw locking mechanism comprises a thrust shaft assembly and a supporting pin, the thrust shaft assembly comprises a hinge seat, a thrust seat and a thrust shaft, one end of the hinge seat is provided with a hinge joint with the width matched with the space between the clamping jaw pieces on the two sides of the clamping jaw assembly, the hinge joint is respectively hinged with the upper ends of the clamping jaw pieces on the two sides of the clamping jaw assembly through a hinge pin, and the other end of the hinge seat is provided with a hinge seat axial threaded hole; one end of the thrust seat is longitudinally provided with an upper end notch containing a clamping jaw sheet in the middle of the clamping jaw assembly, the end of the notch is provided with a V-shaped notch, and the other end of the thrust seat is provided with an axial threaded hole of the thrust seat, the rotating direction of which is opposite to that of the axial threaded hole of the hinged seat; screws with opposite rotation directions at two ends of the thrust shaft are respectively screwed into the corresponding axial threaded holes of the hinge seat and the thrust seat, and the middle part of the support pin is vertically fixed in the end head of the upper end of the clamping jaw in the middle; when the V-shaped notches at the ends of the notches of the thrust base respectively push the two ends of the supporting pin, two clamping jaw sheets on the outer side of the clamping jaw assembly and the clamping jaw sheet in the middle relatively rotate around the axis of the hoisting shaft to clamp one end of the thick short shaft. The middle part of the thrust shaft is provided with a hexagonal body.
The utility model has the advantages of simple and compact structure, the utility model discloses close the handling of axle type part from current press from both sides tightly and the handling close the formula hoist of cutting that an organic whole changes into pressing from both sides tightly and the handling through the clamping jaw locking mechanism that corresponds and the structure that two sets of handling mechanisms realized respectively, passes two modes of hanging the ring through a handling wire rope, and the position of being convenient for adjust handling wire rope makes the handling axle be in the horizontality. The thrust shaft assembly is extended by rotating the thrust shaft, so that the two ends of the thrust shaft assembly respectively push the lower ends of the corresponding clamping jaw pieces to clamp and lock the hoisted thick and short shafts, the defects that the levelness of the hoisted shaft parts cannot be adjusted after the existing shear type lifting tool is hoisted and the hoisted shaft parts cannot be adjusted once falling down and the positions of the hoisted shaft parts cannot be adjusted are overcome, and the major potential safety hazard that the machine tool or the tool is damaged or even the person is injured due to the fact that the hoisted shaft parts cannot be controlled in position is avoided. The utility model discloses positioning accuracy is high, has improved handling quality, handling security and handling efficiency of thick stub axle greatly, has alleviateed workman's intensity of labour.
The advantages and features of the invention will be illustrated and explained by the following non-restrictive description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of the device of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a bottom view of FIG. 2;
FIG. 4 is an enlarged sectional view A-A of FIG. 2;
fig. 5 is an enlarged sectional view B-B of fig. 2.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and the cylinder blank handling embodiment of the crosshead pin of a certain model of marine low-speed diesel engine with an outer diameter of 500mm and a length of 900 mm.
As shown in fig. 1 to 5, the present embodiment includes a lifting shaft 1, a clamping jaw locking mechanism 2, two sets of clamping jaw assemblies 3 and two sets of lifting mechanisms 4, each set of clamping jaw assembly 3 includes three clamping jaw pieces 31 which are the same in shape and are S-shaped, a copper sleeve 32 is embedded in the middle of each clamping jaw piece 31, the clamping jaw piece 31 in the middle of each set of clamping jaw assembly 3 is symmetrically arranged with the clamping jaw pieces 31 on both sides, a V-shaped transverse plate 311 extends out from the middle of the arc-shaped inner side of the lower part of each clamping jaw piece 31 towards the arc-shaped central direction, when the clamping jaw assemblies 3 clamp the stub shaft 10, a notch of the V-shaped transverse plate 311 relatively clamps one end of the stub shaft 10 in a horizontal state, and the V-shaped contact surface makes 4 clamping points on the outer peripheral surface of the stub.
As shown in fig. 2 and fig. 3, the V-shaped transverse plates 311 at the lower ends of the clamping jaw pieces 31 at both sides of the clamping jaw assembly 3 and the V-shaped transverse plate 311 at the lower end of the middle clamping jaw piece 31 form jaws for clamping both ends of the stub axle 10, and the two sets of clamping jaw assemblies 3 clamp the horizontal stub axle 10 in a manner that the two clamping jaw pieces 31 at the outer sides are arranged diagonally and the clamping jaw piece 31 at the middle is also arranged diagonally, so that the hoisting stability of the stub axle 10 is improved.
As shown in fig. 3 to 5, the clamping jaw locking mechanism 2 is transversely disposed at the upper end of each group of clamping jaw assemblies 3, and includes a thrust shaft assembly 21 and a support pin 22, the thrust shaft assembly 21 includes a hinge seat 211, a thrust seat 212 and a thrust shaft 213, the left end of the hinge seat 211 is provided with a hinge 2111 with a width matched with the distance between the clamping jaw pieces 31 at the two sides of the clamping jaw assembly 3, the hinge 2111 is respectively hinged with the upper ends of the clamping jaw pieces 31 at the two sides of the clamping jaw assembly 3 through a hinge pin 23, and the right end of the hinge seat 211 is provided with a hinge seat axial threaded hole. The right end of the thrust base 212 is longitudinally provided with a notch 2121 for accommodating the upper end of the clamping jaw sheet 31 in the middle of the clamping jaw assembly 3, the end of the notch 2121 is provided with a V-shaped notch 2122, and the left end of the thrust base 212 is provided with an axial thrust base threaded hole 2122 which is opposite to the rotation direction of the axial hinge base threaded hole 2112. The opposite screw rods in the direction of rotation at the two ends of the thrust shaft 213 are screwed into the corresponding hinge seat axial threaded hole 2112 and the thrust seat axial threaded hole 2121 respectively, and the hexagonal body 2132 is arranged in the middle of the thrust shaft 213, so that synchronous extension or shortening at the two ends of the thrust shaft assembly 21 can be realized only by rotating the hexagonal body 2132 with a wrench, and the length of the thrust shaft assembly 21 is changed.
The middle part of the supporting pin 22 is vertically fixed in the upper end head of the middle clamping jaw sheet 31; when the V-shaped notch 2122 at the end of the thrust seat notch 2121 pushes the two ends of the support pin 22, the two outer gripper sheets 31 and the middle gripper sheet 31 of the gripper assembly 3 rotate relatively around the axis of the hoisting shaft 1 to clamp and lock one end of the stub shaft 10.
The hoisting mechanisms 4 are symmetrically arranged on the hoisting shaft 1 between the two groups of clamping jaw assemblies 3 and comprise hoisting rings 41 and hoisting seats 42, the lower ends of the hoisting seats 41 extend out of hoisting seat screw rods 411, the hoisting seat screw rods 411 are respectively and vertically screwed into the two ends of the hoisting shaft 1, the hoisting seats 41 are respectively positioned on the inner sides of the corresponding clamping jaw assemblies 3, and the lower ends of the hoisting rings 41 are hinged with the upper ends of the hoisting seats 42.
Use the utility model discloses the process of handling thick minor axis as follows:
1) the clamping jaw assembly 3 is hoisted above the coarse short shaft 10
The middle part of the hoisting steel wire rope 20 sequentially passes through the two hoisting rings 41, and two ends of the hoisting steel wire rope 20 are respectively hung on the crane hook. And hoisting the two groups of clamping jaw assemblies 3 by hoisting mechanisms 4 at two ends of the hoisting shaft 1. And adjusting the position of the hoisting steel wire rope 20 to enable the hoisting shaft 1 to be in a horizontal state, and hoisting the two groups of clamping jaw assemblies 3 by the crane to move above the stub shaft 10.
2) Manual opening jaw assembly 3
The two groups of clamping jaw assemblies 3 vertically descend to the upper side of the stub shaft 10, an operator grasps the upper ends of the two clamping jaw pieces 31 at the outer sides of the clamping jaw assemblies 3 with one hand and grasps the upper end of one clamping jaw piece 31 in the middle of the clamping jaw assemblies 3 with the other hand to respectively push towards the center direction of the clamping jaw assemblies 3 until the jaw of the V-shaped transverse plate 311 at the lower ends of the clamping jaw assemblies 3 is opened to be larger than the diameter of the stub shaft 10. Then, the jaws of the two sets of jaw assemblies 3 are respectively kept in an open state and descend until the opened jaws respectively contain the two ends of the stub shaft 10, and then the descending is stopped.
3) The clamping jaw locking mechanism 2 locks the stub axle 10
The crane hook moves horizontally, and the two groups of clamping jaw assemblies 3 move horizontally to clamping positions with the same distance with the end faces of the thick short shaft 10 respectively; then, an operator firstly pulls the two ends of the upper part of the clamping jaw assembly 3 by hand, so that the notches of the lower end V-shaped transverse plates 311 of the two clamping jaw pieces 31 at the outer sides of the clamping jaw assembly 3 and the notch of the lower end V-shaped transverse plate 311 of the middle clamping jaw piece 31 are respectively abutted against the two sides of the radial end of the thick short shaft 10. Then, the thrust shaft assembly 21 in the vertical state is rotated counterclockwise around the axis of the hinge pin 23 to the horizontal state, a wrench is used to rotate the hexagonal body 2132 in the middle of the thrust shaft 213, and the length of the thrust shaft assembly 21 is extended until the V-shaped notches 2122 at the ends of the thrust seat notch 2121 abut against the two ends of the support pin 22 respectively. The hexagonal body 2132 is again twisted until the jaw assembly 3 is locked in position gripping one end of the stub shaft 10. And repeating the above actions to complete the clamping of the other clamping jaw assembly 3 on the other end of the stub shaft 10 and locking in a clamping state.
4) Unclamping jaw assembly 3
After the stub shaft 10 is horizontally lifted to a proper position, the hexagonal body 2132 in the middle of the thrust shaft 213 is reversely rotated by a wrench, the length of the thrust shaft assembly 21 is shortened, the V-shaped notch 2122 at the end of the notch 2121 of the thrust seat is separated from the supporting pin 22, and the thrust shaft assembly 21 is rotated clockwise to a vertical state. The clamping jaw assembly 3 releases the clamping of the stub shaft 10. The crane hook rises, the clamping jaw assembly 3 is separated from the stub axle 10, and the hoisting of the stub axle 10 is completed.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions adopting equivalent substitution or equivalent transformation fall within the protection scope claimed by the present invention.
Claims (5)
1. A horizontal hoisting device for thick and short shafts is characterized by comprising a hoisting shaft, a clamping jaw locking mechanism, two groups of clamping jaw assemblies and two groups of hoisting mechanisms, wherein each group of clamping jaw assembly comprises three clamping jaw pieces which are same in shape and are S-shaped, a copper sleeve is embedded in the middle of each clamping jaw piece, the clamping jaw piece in the middle of each group of clamping jaw assemblies and the clamping jaw pieces on two sides are symmetrically arranged, and thrust bearings are respectively arranged between the copper sleeves of the three clamping jaw pieces arranged side by side and on the outer sides of the clamping jaw pieces on two sides; the lower ends of the clamping jaw components respectively clamp two ends of the coarse and short shafts; two ends of the hoisting shaft respectively penetrate through the copper sleeves and the thrust bearings of the two groups of clamping jaw assemblies, and the end heads of the two ends of the hoisting shaft respectively enable the clamping jaw pieces of the clamping jaw groups to be hinged with each other through nuts screwed on the end heads of the two ends of the hoisting shaft; the lifting mechanisms are symmetrically arranged on a lifting shaft between the two groups of clamping jaw assemblies, and the clamping jaw locking mechanisms are transversely arranged at the upper end of each group of clamping jaw assemblies; the lower ends of the clamping jaw sheets at two sides and the lower end of the clamping jaw sheet in the middle respectively form jaws for clamping two ends of the thick and short shaft, the two groups of clamping jaw assemblies are arranged in a mode that two clamping jaw sheets at the outer sides are arranged diagonally, and the thick and short shaft in a horizontal state is clamped by one clamping jaw sheet in the middle in a diagonal arrangement mode.
2. The horizontal lifting device for the thick and short shafts as claimed in claim 1, wherein a V-shaped transverse plate extends from the middle of the arc-shaped inner side of the lower portion of the clamping jaw piece towards the arc-shaped center direction, and when the clamping jaw assembly clamps the thick and short shafts, the notch of the V-shaped transverse plate oppositely clamps one end of the thick and short shaft in a horizontal state.
3. The thick short shaft horizontal lifting device as claimed in claim 1, wherein the lifting mechanism comprises a lifting ring and a lifting seat, a lifting seat screw extends out of the lower end of the lifting seat, the lifting seat screws are respectively and vertically screwed into two ends of the lifting shaft, and the lifting seat is respectively positioned at the inner side of the corresponding clamping jaw assembly; the lower end of the lifting ring is hinged with the upper end of the lifting seat.
4. The thick short shaft horizontal lifting device as claimed in claim 1, wherein the clamping jaw locking mechanism comprises a thrust shaft assembly and a supporting pin, the thrust shaft assembly comprises a hinge seat, a thrust seat and a thrust shaft, one end of the hinge seat is provided with a hinge joint with the width matched with the distance between the clamping jaw pieces on two sides of the clamping jaw assembly, the hinge joint is respectively hinged with the upper ends of the clamping jaw pieces on two sides of the clamping jaw assembly through a hinge pin, and the other end of the hinge seat is provided with a hinge seat axial threaded hole; one end of the thrust seat is longitudinally provided with an upper end notch containing a clamping jaw sheet in the middle of the clamping jaw assembly, the end of the notch is provided with a V-shaped notch, and the other end of the thrust seat is provided with an axial threaded hole of the thrust seat, the rotating direction of which is opposite to that of the axial threaded hole of the hinged seat; screws with opposite rotation directions at two ends of the thrust shaft are respectively screwed into the corresponding axial threaded holes of the hinge seat and the thrust seat, and the middle part of the support pin is vertically fixed in the end head of the upper end of the clamping jaw in the middle; when the V-shaped notches at the ends of the notches of the thrust base respectively push the two ends of the supporting pin, two clamping jaw sheets on the outer side of the clamping jaw assembly and the clamping jaw sheet in the middle relatively rotate around the axis of the hoisting shaft to clamp one end of the thick short shaft.
5. The thick short shaft horizontal lifting device as claimed in claim 4, wherein the middle part of the thrust shaft is provided with a hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021472107.3U CN212712380U (en) | 2020-07-23 | 2020-07-23 | Horizontal hoisting device for coarse and short shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021472107.3U CN212712380U (en) | 2020-07-23 | 2020-07-23 | Horizontal hoisting device for coarse and short shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212712380U true CN212712380U (en) | 2021-03-16 |
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ID=74908513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021472107.3U Active CN212712380U (en) | 2020-07-23 | 2020-07-23 | Horizontal hoisting device for coarse and short shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212712380U (en) |
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2020
- 2020-07-23 CN CN202021472107.3U patent/CN212712380U/en active Active
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Address after: No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province, 212002 Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |