CN215592389U - Device for quickly disassembling crown block wheel angle bearing seat and crown block wheel bearing - Google Patents

Abstract

The utility model provides a dismantle device of crown block wheel angle bearing seat and crown block wheel bearing fast, belongs to crown block repair tools technical field for dismantle the angle bearing seat and the bearing of crown block wheel fast. The technical scheme is as follows: the crossbeam is the cuboid, there is the ejecting screw of perpendicular to crossbeam length direction in the center of crossbeam, there is the slot hole along crossbeam length direction respectively at the both ends of crossbeam, the ejector pin is the screw rod, the ejector pin lower extreme is twisted in the ejecting screw of crossbeam, two pull rods are the bolt respectively, two pull rods wear in the slot hole at crossbeam both ends, the lower extreme of two pull rods has the pull rod nut phase-match respectively, axle kicking block and bearing kicking block place respectively in the front end of ejector pin, the inboard terminal surface of axle kicking block and bearing kicking block is relative with the outer terminal surface of overhead traveling crane wheel axle and overhead traveling crane wheel bearing respectively. The utility model greatly simplifies the disassembly process, can quickly and conveniently disassemble the crown block wheel angle bearing seat and the crown block wheel bearing, saves personnel and disassembly time, lightens the labor intensity of workers and improves the maintenance work efficiency.

Description

Device for quickly disassembling crown block wheel angle bearing seat and crown block wheel bearing

Technical Field

The utility model relates to a device for quickly disassembling an angle bearing seat and a bearing of a crown block wheel, belonging to the technical field of crown block maintenance tools.

Background

The crown block is the most common hoisting equipment in the metallurgical industry, and the replacement of a crown block wheel bearing is a maintenance project which is frequently carried out by the crown block. The change overhead traveling crane wheel bearing needs to demolish the bolt and the nut of overhead traveling crane wheel angle bearing seat end cover earlier, takes off the end cover after, dismantles overhead traveling crane wheel angle bearing seat earlier, because overhead traveling crane wheel angle bearing seat and overhead traveling crane wheel bearing are interference fit, connect very closely, dismantle more difficultly. In order to prevent the damage to the workpiece, the workpiece can be detached only by knocking the bearing seat of the crown block for multiple times along the circumference from different positions without stopping the operation of a copper bar and a sledge hammer, so that the operation is time-consuming, labor-consuming, very troublesome and requires multiple operators. On the basis of the removal of the crown block wheel angle bearing seat, the crown block wheel bearing is removed from the crown block wheel shaft, a round nut and a backstop washer at the front end of the crown block wheel shaft are firstly removed, then the crown block wheel bearing is removed, and then a new bearing is replaced. Also, because the crown block wheel bearing and the crown block wheel shaft are in interference fit, the contact is very tight, the disassembly is difficult, the disassembly is performed with great effort usually by using clumsy tools such as copper bars, large hammers and the like, and if the operation is improper, the workpiece is easily damaged.

To sum up, at present in the overhead traveling crane maintenance process, dismantle overhead traveling crane wheel angle bearing seat and overhead traveling crane wheel bearing and change the traditional method of adorning new bearing and waste time and energy, operating personnel is many, and the safety coefficient is poor, has increased maintenance personal's intensity of labour, and work efficiency is very low, awaits urgently to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a device for quickly disassembling a crown block wheel angle bearing seat and a crown block wheel bearing, which can be operated by one person, can quickly and conveniently disassemble the crown block wheel angle bearing seat and the crown block wheel bearing, can save labor and time, reduce labor intensity, improve maintenance work efficiency, prevent safety accidents and avoid workpiece damage.

The technical scheme for solving the technical problems is as follows:

a device for quickly disassembling an angle bearing seat of a crown block wheel and a crown block wheel bearing comprises a cross beam, an ejector rod, pull rods, pull rod nuts, a shaft ejector block and a bearing ejector block, wherein the cross beam is cuboid, an ejection screw hole vertical to the length direction of the cross beam is formed in the center of the cross beam, long holes along the length direction of the cross beam are formed in two ends of the cross beam respectively, the opening direction of each long hole is parallel to the ejection screw hole, the ejector rod is a screw rod, the thread of each ejector rod is matched with the thread of the ejection screw hole of the cross beam, the lower end of each ejector rod is screwed into the ejection screw hole of the cross beam, the two pull rods are high-strength bolts respectively, the two pull rods penetrate through the long holes in two ends of the cross beam, the nuts of the two pull rods are clamped outside the long holes of the cross beam, the lower ends of the two pull rods are respectively matched with the pull rod nuts, the shaft ejector block and the bearing ejector block are respectively flat cylinders, the outer diameter of the shaft ejector block is matched with the diameter of a crown block, and the outer diameter of the bearing ejector block is matched with the crown block, the shaft top block and the bearing top block are respectively arranged at the front end of the ejector rod, and the inner side end faces of the shaft top block and the bearing top block are respectively opposite to the outer end faces of the crown block wheel shaft and the crown block wheel bearing.

Above-mentioned dismantle device of overhead traveling crane wheel angle bearing frame and overhead traveling crane wheel bearing fast, the center of the lateral surface of axle kicking block and bearing kicking block has circular recess respectively, and the diameter of circular recess matches with the diameter of ejector pin front end, and the circumferential edge reason of the medial surface of bearing kicking block has annular bulge, annular bulge's width and overhead traveling crane wheel bearing's ring width phase-match.

Above-mentioned dismantle device of overhead traveling crane wheel angle bearing seat and overhead traveling crane wheel bearing fast, it still has a crown block position sleeve, crown block position sleeve is ring shape, the ring external diameter of crown block position sleeve and overhead traveling crane wheel bearing's external diameter phase-match, the ring hole diameter of crown block position sleeve and the external diameter phase-match of crown block, crown block position sleeve suit is in the periphery of crown block, the circumferential edge of the medial surface of crown block position sleeve has annular bulge, the bellied width of annular and overhead traveling crane wheel bearing's ring width phase-match.

The utility model has the beneficial effects that:

the front end of the ejector rod is abutted to the end face of the crown block wheel shaft through the shaft ejector block, the cross beam can retreat along the length direction of the ejector rod by rotating the ejector rod, and the cross beam pulls out the crown block wheel angle bearing seat together with the crown block wheel bearing from the crown block wheel shaft through the pull rod to finish the disassembly of the crown block wheel angle bearing seat; the crown block wheel angle bearing seat is separated from the crown block wheel bearing by the ejector rod, the cross beam and the pull rod through the bearing ejector block.

The utility model breaks through the traditional process of firstly disassembling the crown block wheel angle bearing seat and then disassembling the crown block wheel bearing, firstly integrally disassembling the crown block wheel angle bearing seat and the crown block wheel bearing, and then separating the crown block wheel angle bearing seat from the crown block wheel bearing, thereby greatly simplifying the disassembling process, being capable of being operated by one person, being capable of quickly and conveniently disassembling the crown block wheel angle bearing seat and the crown block wheel bearing, saving the operating personnel and the disassembling time, lightening the labor intensity of workers, improving the maintenance work efficiency of the crown block, preventing safety accidents and avoiding damaging workpieces.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the cross beam;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic structural view of the carrier rod;

FIG. 5 is a schematic view of the structure of the draw rod and draw rod nut;

FIG. 6 is a front view of the shaft top block;

FIG. 7 is a cross-sectional view B-B of FIG. 6;

FIG. 8 is a front view of a bearing top block;

FIG. 9 is a cross-sectional view C-C of FIG. 8;

FIG. 10 is an elevation view of an axletree top block positioning sleeve;

FIG. 11 is a cross-sectional view D-D of FIG. 10;

FIG. 12 is a schematic view of the construction of the crown wheel;

FIG. 13 is a schematic view of the use state of the crown block wheel angle bearing seat;

fig. 14 is a schematic view of a state of use in which the crown wheel bearing is disassembled.

The figures are labeled as follows: the crown block wheel angle bearing seat comprises a crown block wheel angle bearing seat 1, a crown block wheel bearing 2, a crown block wheel shaft 3, a round nut 4, an end cover 5, a bolt 6, a cross beam 7, an ejector rod 8, a pull rod 9, a pull rod nut 10, a shaft ejector block 11, a bearing ejector block 12, a shaft ejector block positioning sleeve 13, an ejector screw hole 14, a long hole 15, a circular groove 16 and an annular bulge 17.

Detailed Description

The utility model is composed of a beam 7, a mandril 8, a pull rod 9, a pull rod nut 10, a shaft top block 11, a bearing top block 12 and a shaft top block positioning sleeve 13.

Fig. 1, 2 and 3 show that the cross beam 7 is a cuboid, the center of the cross beam 7 is provided with an ejection screw hole 14 perpendicular to the length direction of the cross beam 7, two ends of the cross beam 7 are respectively provided with a long hole 15 along the length direction of the cross beam 7, and the opening direction of the long hole 15 is parallel to the ejection screw hole 14. The ejection screw hole 14 is used for screwing the ejector rod 8, and the long hole 15 is used for placing and pulling the pull rod 9.

Fig. 1 and 4 show that the ejector rod 8 is a screw rod, the thread of the ejector rod 8 is matched with the thread of the ejection screw hole 14 of the cross beam 7, and the lower end of the ejector rod 8 is screwed in the ejection screw hole 14 of the cross beam 7. The upper end of the ejector rod 8 is provided with a square nut, and an operator can use a wrench to rotate the ejector rod 8 through the nut.

Fig. 1 and 5 show that the two pull rods 9 are high-strength bolts respectively, the two pull rods 9 penetrate through the long holes 15 at the two ends of the cross beam 7, nuts of the two pull rods 9 are clamped outside the long holes 15 of the cross beam 7, and pull rod nuts 10 are arranged at the lower ends of the two pull rods 9 respectively and matched with each other. The pull rod 9 and the pull rod nut 10 are used for penetrating through a screw hole of the crown block wheel angle bearing seat 1 and pulling the crown block wheel angle bearing seat 1 outwards.

Fig. 1, 6 and 7 show a shaft top block 11 to be used when detaching the crown wheel angle bearing block 1 and crown wheel bearing 2 from the crown wheel shaft 3. Shaft top block 11 the shaft top block 11 is a flat cylinder, the outer diameter of the shaft top block 11 matches with the diameter of the crown block wheel shaft 3, the shaft top block 11 is placed at the front end of the ejector rod 8, the inner side end face of the shaft top block 11 is opposite to the outer end face of the crown block wheel shaft 3, and the ejector rod 8 is abutted against the outer end face of the crown block wheel shaft 3 through the shaft top block 11. The shaft jacking block 11 is used for bearing the pressure of the end face of the jacking rod 8, preventing the end face of the crown block wheel shaft 3 from being damaged due to concentrated stress, protecting the end face of the crown block wheel shaft 3 and dispersedly and uniformly transmitting the jacking force of the jacking rod 8. The center of the outer side surface of the shaft top block 11 is provided with a circular groove 16, and the diameter of the circular groove 16 is matched with the diameter of the front end of the push rod 8. The circular groove 16 has the effects that the ejector rod 8 is centrally positioned, and a small amount of lubricant can be added into the circular groove 16 and is in contact with the end face of the ejector rod 8, so that the friction force generated when the ejector rod 8 rotates is reduced.

Fig. 1, 8 and 9 show the use of a bearing top block 12 for separating the crown wheel angle bearing block 1 from the crown wheel bearing 2. The bearing top block 12 is a flat cylinder, the outer diameter of the bearing top block 12 is matched with the outer diameter of the crown wheel bearing 2, the bearing top block 12 is placed at the front end of the ejector rod 8, and the end face of the inner side of the bearing top block 12 is opposite to the outer end face of the crown wheel bearing 2. The circumferential edge of the inner side surface of the bearing top block 12 is provided with an annular bulge 17, and the width of the annular bulge 17 is matched with the annular width of the crown wheel bearing 2. The annular bulge 17 of the bearing top block 12 can protect the crown block wheel bearing 2 and the crown block wheel angle bearing seat 1 from being damaged during disassembly, the circumferential surface of the annular bulge 17 of the bearing top block 12 is opposite to the circumferential end surface of the crown block wheel bearing 2, and when the ejector rod 8 ejects and presses the bearing top block 12, the end surface of the annular bulge 17 of the bearing top block 12 can enable the circumference of the crown block wheel bearing 2 to be stressed evenly, so that the crown block wheel bearing 2 is prevented from being damaged. The center of the outer side surface of the bearing top block 12 is provided with a circular groove 16, and the circular groove 16 plays the same role as the circular groove 16 of the shaft top block 11.

Fig. 1, 10 and 11 show that when the crown block 11 is used to detach the crown block angle bearing block 1 from the crown block axle 3, a shaft top block positioning sleeve 13 is also used. The shaft top block positioning sleeve 13 is used for positioning the shaft top block 11, the center of the shaft top block 11 is guaranteed to be consistent with the center of the ejector rod 8, and the circumference of the crown wheel bearing 2 is evenly stressed in the whole dismounting process. The shaft top block positioning sleeve 13 is in a circular ring shape, the outer diameter of a circular ring of the shaft top block positioning sleeve 13 is matched with the outer diameter of the crown wheel bearing 2, the inner diameter of a circular ring hole of the shaft top block positioning sleeve 13 is matched with the outer diameter of the shaft top block 11, the shaft top block positioning sleeve 13 is sleeved on the periphery of the shaft top block 11, the circumferential edge of the inner side surface of the shaft top block positioning sleeve 13 is provided with an annular bulge 17, and the width of the annular bulge 17 is matched with the width of the circular ring of the crown wheel bearing 2.

Fig. 12 shows that the crown block wheel angle bearing seat 1 is internally provided with a crown block wheel bearing 2, the crown block wheel bearing 2 is sleeved on a crown block wheel shaft 3, the front end of the crown block wheel shaft 3 is sleeved with a round nut 4, two end covers 5 are respectively positioned at two sides of the crown block wheel angle bearing seat 1, and a bolt 6 penetrates through the crown block wheel angle bearing seat 1 and the two end covers 5 and is fixedly connected by the nut.

The operation process of the utility model is as follows:

(1) crown wheel angle bearing seat 1 and crown wheel bearing 2 detached from crown wheel shaft 3

Firstly, removing a bolt 6 and a nut for fixing a crown block wheel angle bearing seat 1 and two end covers 5, taking down the end covers 5, and removing a round nut 3 and a matched backstop washer at the front end of a crown block wheel shaft 3;

then, two pull rods 9 are penetrated in long holes 15 at two ends of the cross beam 7, nuts of the two pull rods 9 are clamped outside the long holes 15 of the cross beam 7, rod bodies of the two pull rods 9 penetrate through screw holes of the crown block wheel angle bearing seat 1 and are fixed by pull rod nuts 10, and an ejector rod 8 is screwed into an ejection screw hole 14 in the center of the cross beam 7;

then the shaft top block positioning sleeve 13 is placed on the outer end face of the crown wheel bearing 2, the shaft top block 11 is embedded into the shaft top block positioning sleeve 13, and the front end of the ejector rod 8 is tightly connected with the circular groove 16 on the outer end face of the shaft top block 11;

the square nut of the ejector rod 8 is clamped by a wrench to rotate the ejector rod 8, the front end of the ejector rod 8 presses the end face of the crown block wheel shaft 3 through the shaft ejector block 11, the thread of the ejector rod 8 rotates in the ejector screw hole 14 of the cross beam 7, the cross beam 7 moves backwards under the action of the thread of the ejector rod 8, the cross beam 7 drives the crown block wheel angle bearing seat 1 to move outwards through the pull rod 9, the crown block wheel angle bearing seat 1 drives the crown block wheel bearing 2 to move outwards along the crown block wheel shaft 3 until the crown block wheel bearing 2 is separated from the crown block wheel shaft 3, and the crown block wheel angle bearing seat 1 and the crown block wheel bearing 2 are detached from the crown block wheel shaft 3 together. The above process is shown in fig. 13.

(2) Separating a crown block wheel angle bearing seat 1 from a crown block wheel bearing 2

Buckling a bearing top block 12 to the end face of a crown wheel bearing 2, wherein an annular bulge 17 on the inner side face of the bearing top block 12 is opposite to the outer end face of the crown wheel bearing 2, then tightly jacking the front end of a mandril 8 and a circular groove 16 on the outer end face of the bearing top block 12, and enabling rod bodies of pull rods 9 on two sides of a cross beam 7 to penetrate through screw holes of a crown wheel corner bearing seat 1 and be fixed by pull rod nuts 10;

the nut of the ejector rod 8 is rotated by a wrench, the front end of the ejector rod 8 presses the end face of the crown wheel bearing 2 through the bearing ejector block 12, the cross beam 7 moves backwards under the action of the threads of the ejector rod 8, the cross beam 7 drives the crown wheel angle bearing seat 1 to move outwards through the pull rod 9, the crown wheel bearing 2 reversely moves under the pressing of the ejector rod 8 until the crown wheel angle bearing seat 1 is separated from the crown wheel bearing 2, and the purpose of separating the crown wheel bearing 2 from the crown wheel angle bearing seat 2 is achieved. The above process is shown in fig. 14.

One embodiment of the utility model is as follows:

the length of crossbeam 7 is 360mm, and the width is 80mm, and thickness is 60mm, and the diameter of ejecting screw 14 is 16mm, and the length of slot 15 is 100mm, and the width is 17 mm.

The ejector rod 8 is a screw rod made of 40Cr and with the diameter of 36mm, trapezoidal threads are machined in the middle of the ejector rod, the side length of a square nut is 53.8mm, and the thickness of the square nut is 40 mm;

the pull rod 9 is a high-strength large hexagon bolt, the diameter is M16, and the length is 300 mm;

the pull rod nut 10 is an M16 nut;

the shaft jacking block 11 is made of 45 steel, the diameter of the shaft jacking block is 114mm, the thickness of the shaft jacking block is 40mm, the diameter of the circular groove 16 is 37mm, and the depth of the circular groove is 5 mm;

the bearing top block 12 is made of 45 steel, the diameter of the bearing top block is 214mm, the thickness of the bearing top block is 40mm, the diameter of the circular groove 16 is 37mm, the depth of the circular groove is 5mm, the width of the annular bulge 17 is 22.5mm, and the height of the annular bulge is 11 mm;

the shaft jacking block positioning sleeve 13 is made of 45 steel, the outer diameter of the shaft jacking block positioning sleeve 13 is 214mm, the inner diameter of the shaft jacking block positioning sleeve is 115mm, the thickness of the shaft jacking block positioning sleeve is 40mm, the diameter of the circular groove 16 is 37mm, the depth of the circular groove is 5mm, the width of the annular protrusion 17 is 22.5mm, and the height of the annular protrusion is 11 mm.

By adopting the utility model, the overhead traveling crane wheel bearing replacement is realized, the disassembly work is conveniently and quickly carried out, and the disassembly can be operated by one person through the traditional 3-4 steps of matching operation. The repair process is accelerated, the labor intensity of workers is reduced, the workpiece is not damaged, the maintenance efficiency is greatly improved, and the fast-paced production requirement is met. The comprehensive cost is reduced, and about 19.8 ten thousand yuan can be created.

The utility model can be applied to the disassembly of the same type of equipment in other mechanical fields, and has very wide popularization and application values.

Claims (3)

1. The utility model provides a dismantle device of overhead traveling crane wheel angle bearing frame and overhead traveling crane wheel bearing fast which characterized in that: the bearing support device comprises a cross beam (7), ejector rods (8), pull rods (9), pull rod nuts (10), a shaft ejection block (11) and a bearing ejection block (12), wherein the cross beam (7) is a cuboid, an ejection screw hole (14) perpendicular to the length direction of the cross beam (7) is formed in the center of the cross beam (7), long holes (15) along the length direction of the cross beam (7) are formed in two ends of the cross beam (7) respectively, the opening direction of the long holes (15) is parallel to the ejection screw hole (14), each ejector rod (8) is a screw rod, the threads of each ejector rod (8) are matched with the threads of the ejection screw hole (14) of the cross beam (7), the lower end of each ejector rod (8) is screwed into the ejection screw hole (14) of the cross beam (7), the two pull rods (9) are high-strength bolts respectively, the two pull rods (9) penetrate through the long holes (15) in two ends of the cross beam (7), nuts of the two pull rods (9) are clamped outside the long holes (15) of the cross beam (7), the lower ends of the two pull rods (9) are respectively provided with a pull rod nut (10) for matching, the shaft top block (11) and the bearing top block (12) are respectively flat cylinders, the outer diameter of the shaft top block (11) is matched with the diameter of the crown block wheel shaft (3), the outer diameter of the bearing top block (12) is matched with the outer diameter of the crown block wheel bearing (2), the shaft top block (11) and the bearing top block (12) are respectively placed at the front end of the ejector rod (8), and the inner side end faces of the shaft top block (11) and the bearing top block (12) are respectively opposite to the outer end faces of the crown block wheel shaft (3) and the crown block wheel bearing (2).

2. The apparatus of claim 1, wherein the apparatus comprises: the center of the outer side face of the shaft top block (11) and the bearing top block (12) is provided with a circular groove (16) respectively, the diameter of the circular groove (16) is matched with that of the front end of the ejector rod (8), the circumferential edge of the inner side face of the bearing top block (12) is provided with an annular bulge (17), and the width of the annular bulge (17) is matched with the annular width of the crown block wheel bearing (2).

3. The apparatus of claim 1, wherein the apparatus comprises: it is also axle kicking block position sleeve (13), axle kicking block position sleeve (13) are the ring shape, the ring external diameter of axle kicking block position sleeve (13) and the external diameter phase-match of overhead traveling crane wheel bearing (2), the ring hole diameter of axle kicking block position sleeve (13) and the external diameter phase-match of axle kicking block (11), the periphery at axle kicking block (11) is suit to axle kicking block position sleeve (13), the circumferential edge of the medial surface of axle kicking block position sleeve (13) has annular bulge (17), the width of annular bulge (17) and the ring width phase-match of overhead traveling crane wheel bearing (2).

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