CN212559099U - Hoisting tool for dual-fuel diesel engine cylinder body - Google Patents
Hoisting tool for dual-fuel diesel engine cylinder body Download PDFInfo
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- CN212559099U CN212559099U CN202021202831.4U CN202021202831U CN212559099U CN 212559099 U CN212559099 U CN 212559099U CN 202021202831 U CN202021202831 U CN 202021202831U CN 212559099 U CN212559099 U CN 212559099U
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Abstract
A lifting tool for a dual-fuel diesel engine cylinder body is provided with a Glan hole and comprises a shaft, a support, lifting lugs, springs, steel balls and nuts; the support is provided with a supporting surface, a positioning surface and a conical guide surface, the support is provided with an arc guide rail groove, the center and two side ends of the arc guide rail groove are respectively provided with a hemispherical groove, the outer side surface of the shaft sleeve is provided with a cylindrical blind hole, the support and the lifting lug are hinged together in a relatively rotating manner through a shaft and a nut, the spring and the steel ball are arranged in the cylindrical blind hole, and under the action of the spring, the steel ball respectively protrudes into the three hemispherical grooves to lock the support and the lifting lug at three different relative positions; the guide surface of the support guides the positioning surface to enter the Glan hole and achieve automatic centering, and the supporting surface is attached to the end surface of the Glan hole, so that the hoisting tool and the center of gravity of the steel wire rope and the cylinder body are located on the same vertical line, and the automatic positioning and stable hoisting of the cylinder body are achieved. The utility model discloses have self-centering and self-locking function, improved production efficiency, eliminated the potential safety hazard, improved the operating condition.
Description
Technical Field
The utility model relates to a transport of large-scale diesel engine spare part, in particular to a handling frock for dual-fuel diesel engine cylinder block belongs to jack-up technical field.
Background
The cylinder block of the WinGD 12X92-DF large dual-fuel low-speed diesel engine is a main component of the engine and consists of 12 single cylinders and 1 middle cylinder, wherein each single cylinder weighs about 23 tons. For the lifting of a single cylinder of a cylinder body in the processes of machining, assembling and lightering, no special tool and method capable of quickly loading and unloading and stably lifting exist at present. Referring to fig. 7, the conventional hoisting method is to manually hoist a steel wire rope C through an O-shaped hole a1 on the connecting surface of the cylinder block or a waist-shaped door frame a2 on the exhaust side and the cam side. When the cylinder body A is lifted, the steel wire rope C is extruded and sheared with the sharp edge of the O-shaped hole A1 or the waist-shaped door frame A2 under the action of the gravity of the cylinder body A, and the steel wire rope C has potential safety hazards of being sheared under the action of shearing force; in addition, because the cylinder body A has a large volume and unstable hoisting gravity center, the cylinder body A and the steel wire rope C are easy to slide and shake relatively, and potential safety hazards also exist; meanwhile, the lifting worker has high labor intensity and low production efficiency in the lifting operation process.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main objective is, overcome not enough that traditional large-scale diesel engine cylinder block handling method exists, according to the structural feature of cylinder block, provide a simple, high-efficient, safe, convenient handling frock that is used for dual-fuel diesel engine cylinder block, avoid wire rope and cylinder block direct contact at the handling in-process, prevent the accident that wire rope leads to is cuted in the acute angle edge extrusion of cylinder block, take place bending deformation and relative slip when eliminating the wire rope handling and lead to the cylinder block because of the focus shakiness.
In order to achieve the above object, the technical solution of the present invention is as follows:
a hoisting tool for a cylinder block of a dual-fuel diesel engine is characterized in that the cylinder block is a box-type part, a Glan hole is formed in the upper plane, a cylinder sleeve hole coaxial with the Glan hole is formed in the lower plane, and the center of gravity of the cylinder block is located on the axis line of the Glan hole and the cylinder sleeve hole; the method is characterized in that: the lifting tool is hung on a steel wire rope and connected with the cylinder body, and comprises a shaft, a support, a lifting lug and a nut;
the support is a symmetrical hollow frame-shaped component, a horizontal supporting surface and a positioning surface which is vertically arranged on the supporting surface are arranged on the front side and the rear side of the support, the arc surface of the positioning surface is matched with the inner wall of the Glan hole, a raised conical guide surface is arranged above the positioning surface, the guide surface corresponds to the Glan hole to play a role in automatic centering, and circular ring sleeves are arranged on the left side and the right side of the support and provided with shaft holes; the lifting lug comprises a rib plate and a shaft sleeve, the rib plate is provided with a lifting hole, and the shaft sleeve is provided with a central hole; the shaft and the nut can hinge the bracket and the lifting lug together in a relatively rotating manner through the shaft hole of the circular ring sleeve and the central hole of the shaft sleeve;
the guide surface of the support guides the positioning surface to enter the Glan hole and achieve automatic centering, and the supporting surface of the support is attached to the end surface of the Glan hole, so that the hoisting tool and the center of gravity of the steel wire rope and the cylinder body are located on the same vertical line, and the cylinder body is automatically positioned and hoisted stably.
Furthermore, the hoisting tool also comprises a spring and a steel ball; be equipped with circular arc guide rail recess on the relative medial surface of the ring cover of support, the central authorities and the both sides end of this circular arc guide rail recess respectively are equipped with a hemisphere face recess, two lateral surfaces of axle sleeve respectively are equipped with a cylinder blind hole, the position of this cylinder blind hole with circular arc guide rail recess on the ring cover is corresponding, spring and steel ball set gradually from inside to outside in the cylinder blind hole, the steel ball can break into respectively in the three hemisphere face recess of support medial surface under the effect of spring, will relative position between support and the lug locks respectively on three different positions.
Further, the locking force of the relative position of the bracket and the lifting lug depends on the elastic force of the spring.
Furthermore, the depth of the semi-spherical surface groove is greater than that of the arc guide rail groove and less than the radius of the steel ball.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model discloses a handling frock simple structure is compact, safe and reliable, convenient operation, and is laborsaving high-efficient, does benefit to the maintenance.
2) The hoisting tool is strong in universality and can be suitable for hoisting operation of single cylinders of large diesel engine cylinder bodies of various models.
3) The hoisting tool adopts a locking mechanism consisting of a steel ball, a spring, a hemispherical groove and an arc guide rail groove, and the hoisting tool is automatically guided to be positioned by utilizing the conical guide surface, so that the hoisting tool has self-locking and automatic centering functions, thereby greatly reducing the difficulty of hoisting operation, simplifying the operation flow, lightening the labor intensity, improving the operation condition and improving the production efficiency.
4) The utility model discloses can avoid wire rope's bending deformation and relative slip, prevent that the cylinder block from rocking because of the focus is shakiness, avoid wire rope to bear the potential safety hazard that the shearing force effect was cut off, prolong wire rope life, reach the steady safety of handling, improve the security of operation.
Drawings
Fig. 1 is an exploded view of the structure of the present invention.
Fig. 2 is an enlarged view of a portion D of fig. 1.
Fig. 3 is a view in the direction E of fig. 1.
Fig. 4 is a schematic perspective view of the structure of the present invention.
Fig. 5 is a sectional view H-H of fig. 4.
Fig. 6 is an enlarged view of a portion F of fig. 5.
Fig. 7 is a schematic view of the lifting state of the present invention.
Fig. 8 is a diagram of the operation steps of the present invention.
Fig. 9 is an enlarged view of the portion P of fig. 8.
Fig. 10 is a schematic side-sectional view of the half shaft in the lifting state of the present invention.
In the figure:
a-cylinder block, B-handling frock, C-wire rope, A1-O type hole, A2-waist type door frame, A3-glan hole, A3-1-glan hole inner wall, A3-2-glan hole terminal surface, B1-axle, B2-support, B3-lug, B4-nut, B5-spring, B6-steel ball, B2-1-guide surface, B2-2-locating surface, B2-3-bearing surface, B2-4-ring cover, K-cylinder blind hole, U-hemisphere face recess, V-hemisphere face recess, W-hemisphere face recess.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples, which should not be construed as limiting the scope of the present invention.
The utility model discloses a handling frock B is used for the handling of dual-fuel diesel engine cylinder block, please refer to fig. 7, and this cylinder block A is box class part, goes up the plane and is equipped with glan hole A3, and the lower plane is equipped with the cylinder trepanning, and this glan hole A3 is coaxial with the cylinder trepanning, sees fig. 10, cylinder block A's focus is on the axial lead G in two holes. The lifting tool B is connected with the cylinder body A and is hung on the steel wire rope C together with the cylinder body A. The utility model discloses make full use of cylinder block A's structural feature adopts shape and glan hole inner wall A3-1 assorted handling frock B, binds wire rope C's the operation of lifting by crane to the cylinder block A that originally has irregular shape, changes wire rope C, handling frock B and cylinder block A's focus G part on same plumb line into and carries out the handling.
Referring to fig. 1, 2, 3, 4 and 7, a hoisting tool B of the cylinder block is suspended at the lower end of a steel cable C, and includes 1 shaft B1, 1 bracket B2, 1 lifting lug B3, 1 nut B4, 2 springs B5 and 2 steel balls B6.
Referring to fig. 4, the support B2 is a hollow rectangular frame-shaped member with a symmetrical structure; the front side and the rear side of the rectangular frame are provided with horizontal step type bearing surfaces B2-3 which are used as the bearing surfaces of the cylinder body A during hoisting; the inner side of the supporting surface B2-3 is provided with a vertical arc positioning surface B2-2, and the positioning arc surface of the positioning surface B2-2 is matched with the inner wall of the Glan hole A3; a raised conical guide surface B2-1 is arranged above the positioning surface B2-2, the guide surface B2-1 corresponds to the Glan hole A3, and the cylinder body A can be automatically centered during lifting.
The left side and the right side of the rectangular frame of the bracket B2 are respectively provided with a circular sleeve B2-4, and the center of the circular sleeve B2-4 is provided with a shaft hole connected with the shaft B1. Referring to fig. 1 and 3, the two circular ring sleeves B2-4 are provided with arc guide grooves on opposite inner side surfaces, the arc guide grooves are provided with a hemispherical groove V at the center and hemispherical grooves U and W at both side ends; the depths of the hemispherical groove U, the hemispherical groove V and the hemispherical groove W are greater than the depth of the arc guide rail groove and less than half of the diameter of the steel ball B6.
Referring to fig. 1, the lifting lug B3 is an integral member composed of a rib plate at the upper part and a cylindrical sleeve connected to the lower part of the rib plate. And the rib plate is provided with a circular lifting hole for connecting a steel wire rope. The shaft sleeve is provided with a central hole for the shaft B1 to pass through, two outer side surfaces of the shaft sleeve are respectively provided with a cylindrical blind hole K, and the position of the cylindrical blind hole K corresponds to the arc guide rail groove on the circular ring sleeve B2-4 of the bracket B2. Referring to fig. 1, 2, 5 and 6, the spring B5 is disposed in the cylindrical blind hole K and one end of the spring B5 is against the bottom of the cylindrical blind hole K, and the steel ball B6 is mounted outside the spring B5 and protrudes out of the opening of the cylindrical blind hole K.
One end of the shaft B1 is in a hexagonal nut shape, and the other end is provided with threads. The shaft B1 is inserted into the shaft hole of the circular sleeve B2-4 of the bracket B2 and the central hole of the shaft sleeve of the lifting lug B3, the bracket B2 and the lifting lug B3 are rotatably hinged together, and the bracket B2 and the lifting lug B3 can rotate around the shaft B1 and perform relative rotary motion. The nut B4 is connected to one end of the shaft B1.
The two steel balls B6 can respectively protrude into a hemispherical groove U, a hemispherical groove V or a hemispherical groove W on the inner side surface of the bracket B2, and one half of the steel balls B6 still remain in the cylindrical blind hole K of the lifting lug B3, and under the action of the elastic force of the spring B5, the relative positions of the bracket B2 and the lifting lug B3 are respectively locked at the three positions. The magnitude of the elastic force of the spring B5 determines the magnitude of the locking force (rotational torsion). When the lifting lug B3 and the bracket B2 rotate relatively around the shaft B1, the steel ball B6 is separated from the hemispherical groove, the spring B5 is compressed under the extrusion of the arc guide rail groove, and rolls along the arc guide rail groove under the action of the rotating torque until sinking into the other hemispherical groove, and a new position is locked.
Referring to fig. 8, the hoisting process of the hoisting tool includes the following steps:
1) the lifting lug B3 and the bracket B2 are mutually rotated, so that the relative positions of the lifting lug B3 and the bracket B2 are locked at the position where the steel ball B6 is embedded into the hemispherical groove W or the hemispherical groove U, namely the lifting lug B3 and the bracket B2 form an oblique angle; and connecting the lifting lug B3 of the lifting tool with a steel wire rope C, and penetrating through the Glan hole A3 from top to bottom along the axis of the Glan hole A3 of the cylinder block A to be placed in the cylinder block A.
2) The lifter overcomes the locking force between the bracket B2 and the lifting lug B3 through an O-shaped hole A1 of the cylinder block A or a waist-shaped door frame A2, manually rotates and adjusts the bracket B2 to be horizontal and locked, namely the bracket B2 and the lifting lug B3 are perpendicular to each other, and the position where the steel ball B6 is embedded into the hemispherical groove V is locked.
3) Slowly lifting the lifting tool B along the axis of the Glan hole A3 through a steel wire rope C;
4) with reference to fig. 9, when the guide surfaces B2-1 on the front and rear sides of the lifting tool B enter the glan hole A3, the guide function is performed, so that the positioning surface B2-2 enters the glan hole inner wall A3-1 along the guide surfaces and is quickly and automatically centered, and finally the supporting surface B2-3 of the lifting tool B is completely attached to the glan hole end surface A3-2; at this time, the steel wire rope C, the lifting tool B and the center of gravity G of the cylinder block a are exactly located on the same vertical line, and referring to fig. 10, the cylinder block a can be lifted.
5) After the cylinder block A is lifted to a preset place, the lifting tool B is put down along the axis of the Glan hole A3, the support B2 and the lifting lug B3 are rotated relatively, the steel ball B6 returns to the original hemispherical groove U or hemispherical groove W and is locked, and the lifting tool B is lifted out of the Glan hole A3 along the axis, so that the lifting operation of the cylinder block A is completed.
The utility model discloses a mechanism of constituteing by steel ball, spring, hemisphere face recess and circular arc guide groove has realized the position locking of handling frock has avoided the potential safety hazard that this handling frock free rotation leads to, utilizes conical spigot surface automatic guide simultaneously the handling frock is in the downthehole location of glan has simplified operating procedure greatly, converts the mode that originally can only use the direct handling cylinder block of wire rope into the method handling that utilizes the frock, has reached simple, convenient, the safe purpose of handling operation.
The utility model discloses an aspect is showing the intensity of labour who has reduced the operator, and on the other hand has improved production efficiency for the operation is safer, has eliminated the potential safety hazard, has reached the effect of frock fast positioning loading and unloading, the steady handling of cylinder block.
The claimed invention is not limited to the above embodiments, but also includes other obvious changes and alternatives, all according to the equivalent changes and modifications of the present invention, all belonging to the scope of the present invention.
Claims (4)
1. A hoisting tool for a cylinder block of a dual-fuel diesel engine is characterized in that the cylinder block is a box-type part, a Glan hole is formed in the upper plane, a cylinder sleeve hole coaxial with the Glan hole is formed in the lower plane, and the center of gravity of the cylinder block is located on the axis line of the Glan hole and the cylinder sleeve hole; the method is characterized in that: the lifting tool is hung on a steel wire rope and connected with the cylinder body, and comprises a shaft, a support, a lifting lug and a nut;
the support is a symmetrical hollow frame-shaped component, a horizontal supporting surface and a positioning surface which is vertically arranged on the supporting surface are arranged on the front side and the rear side of the support, the arc surface of the positioning surface is matched with the inner wall of the Glan hole, a raised conical guide surface is arranged above the positioning surface, the guide surface corresponds to the Glan hole to play a role in automatic centering, and circular ring sleeves are arranged on the left side and the right side of the support and provided with shaft holes; the lifting lug comprises a rib plate and a shaft sleeve, the rib plate is provided with a lifting hole, and the shaft sleeve is provided with a central hole; the shaft and the nut can hinge the bracket and the lifting lug together in a relatively rotating manner through the shaft hole of the circular ring sleeve and the central hole of the shaft sleeve;
the guide surface of the support guides the positioning surface to enter the Glan hole and achieve automatic centering, and the supporting surface of the support is attached to the end surface of the Glan hole, so that the hoisting tool and the center of gravity of the steel wire rope and the cylinder body are located on the same vertical line, and the cylinder body is automatically positioned and hoisted stably.
2. The hoisting tool for the dual-fuel diesel engine cylinder block of claim 1, is characterized in that: the lifting tool further comprises a spring and a steel ball; be equipped with circular arc guide rail recess on the relative medial surface of the ring cover of support, the central authorities and the both sides end of this circular arc guide rail recess respectively are equipped with a hemisphere face recess, two lateral surfaces of axle sleeve respectively are equipped with a cylinder blind hole, the position of this cylinder blind hole with circular arc guide rail recess on the ring cover is corresponding, spring and steel ball set gradually from inside to outside in the cylinder blind hole, the steel ball can break into respectively in the three hemisphere face recess of support medial surface under the effect of spring, will relative position between support and the lug locks respectively on three different positions.
3. The hoisting tool for the dual-fuel diesel engine cylinder block of claim 2, is characterized in that: the locking force of the relative position of the bracket and the lifting lug depends on the elastic force of the spring.
4. The hoisting tool for the dual-fuel diesel engine cylinder block of claim 2, is characterized in that: the depth of the semi-spherical surface groove is greater than that of the arc guide rail groove and less than the radius of the steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021202831.4U CN212559099U (en) | 2020-06-28 | 2020-06-28 | Hoisting tool for dual-fuel diesel engine cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021202831.4U CN212559099U (en) | 2020-06-28 | 2020-06-28 | Hoisting tool for dual-fuel diesel engine cylinder body |
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| Publication Number | Publication Date |
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| CN212559099U true CN212559099U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021202831.4U Active CN212559099U (en) | 2020-06-28 | 2020-06-28 | Hoisting tool for dual-fuel diesel engine cylinder body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116690230A (en) * | 2023-08-08 | 2023-09-05 | 吴江市天富金属制品有限公司 | Chassis frame convenient for transportation for numerical control machine tool |
-
2020
- 2020-06-28 CN CN202021202831.4U patent/CN212559099U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116690230A (en) * | 2023-08-08 | 2023-09-05 | 吴江市天富金属制品有限公司 | Chassis frame convenient for transportation for numerical control machine tool |
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