CN212470439U - Replacing device for slewing bearing of stacker-reclaimer - Google Patents
Replacing device for slewing bearing of stacker-reclaimer Download PDFInfo
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- CN212470439U CN212470439U CN202020940445.9U CN202020940445U CN212470439U CN 212470439 U CN212470439 U CN 212470439U CN 202020940445 U CN202020940445 U CN 202020940445U CN 212470439 U CN212470439 U CN 212470439U
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- reclaimer
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- 239000012535 impurity Substances 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model discloses a stacker-reclaimer slewing bearing changes device belongs to stacker-reclaimer auxiliary assembly field. To the problem that long just there is great risk in the change of current stacker-reclaimer slewing bearing, the utility model provides a device is changed to stacker-reclaimer slewing bearing, it includes actuating mechanism, actuating mechanism is connected with the stand platform on slewing bearing upper portion, and slewing bearing's outer lane is provided with guiding mechanism, and guiding mechanism's direction is parallel with the direction of slewing bearing business turn over, is provided with the slide that supplies the slewing bearing business turn over between the gate seat of slewing bearing and slewing bearing lower part. The utility model realizes the jacking of the upright platform through the driving mechanism to separate the slewing bearing from the upright platform and finish the replacement of the slewing bearing, so that the replacement period of the slewing bearing is shorter and the efficiency is high; the installation position of the new slewing bearing is ensured to be unchanged through the guiding of the guiding mechanism; the operation of entering and exiting the new slewing bearing and the old slewing bearing through the slide ways is simple and convenient, the hoisting technical requirement is low, and the safety risk is reduced.
Description
Technical Field
The utility model belongs to stacker-reclaimer auxiliary assembly field, more specifically say, relate to a stacker-reclaimer slewing bearing changes device.
Background
The stacker-reclaimer is a novel high-efficiency continuous loading and unloading machine, is mainly used for loading and unloading iron ores, coal, sand and the like in bulk material storage yards of bulk cargo professional wharfs, steel plants, large-scale thermal power plants, mines and the like, and has high operation efficiency; the slewing bearing device in the stacker-reclaimer generally adopts a large three-row roller type slewing bearing, and due to the increase of service life, a sealing ring of the slewing bearing is aged and fails, and in addition, the working environment of the stacker-reclaimer is severe, dust and rainwater easily enter an inner cavity of a roller of the slewing bearing, and the reasons of improper lubrication and maintenance and the like cause the damage of a rolling body of the slewing bearing, and the failure of the slewing bearing needs to be replaced. The traditional replacing method is to completely remove the upright post platform above the slewing bearing, the upright post upper section, the adhesive tape machine, the pitching mechanism, the counterweight and the like, and reinstall the upright post platform, the upright post upper section, the adhesive tape machine, the pitching mechanism, the counterweight and the like after replacing a new slewing bearing. Because the weight of the part above the slewing bearing is more than 150 tons, and the structure is complex, a large-sized automobile crane is needed to be matched for hoisting, so that the safety risk is high, the replacement time needs one month, the cost exceeds 100 ten thousand yuan, the replacement time is long, the cost is high, and the production influence is great.
Corresponding improvement is also carried out aiming at the problems, for example, Chinese patent application No. CN201410303669.8, the publication date is 2014, 10, 8, and the patent discloses a replacing device of a slewing bearing of a crane and a using method thereof, wherein the replacing device comprises a device I, a device II and a device III which have the same structure, are circumferentially distributed along a base column assembly of the crane and are positioned on the same horizontal plane, and the structure comprises a top fixing nut, a jacking stud, a guide transmission nut I, a guide transmission nut II and a fixing support; the lifting and descending actions of the rotary table component of the crane are realized by screwing the guide transmission nut I and the guide transmission nut II, so that the slewing bearing is horizontally pushed out or pushed in. The disadvantages of the patent are that: overall structure is complicated, and the difficult control accuracy of angle of three device installation, complex operation.
As another example, chinese patent application No. CN201821795702.3, published as 2019, 7 and 19, discloses a device for replacing a slewing bearing of a crane, including: the crane slewing bearing replacing device needs four workers to synchronously rotate the first nut when in use, so that the distance between the four first nuts and the four second nuts is synchronously increased; then starting the four jacks to move upwards at a constant speed synchronously, so that the height of the upward movement of the crane machine room is equal to the increased distance between the first nut and the second nut; and repeating the steps until the space distance formed between the crane room and the crane upright column is convenient for taking out the slewing bearing. The disadvantages of the patent are that: the synchronization performance of workers can not be guaranteed, the labor intensity is high, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
1. Problems to be solved
To stacker-reclaimer slewing bearing change long consuming time and have the problem of great risk among the prior art, the utility model provides a stacker-reclaimer slewing bearing changes device. The utility model realizes the jacking of the upright platform through the driving mechanism to separate the slewing bearing from the upright platform and finish the replacement of the slewing bearing, so that the replacement period of the slewing bearing is shorter and the efficiency is high; the installation position of the new slewing bearing is ensured to be unchanged through the guiding of the guiding mechanism; the operation of entering and exiting the new slewing bearing and the old slewing bearing through the slide ways is simple and convenient, the hoisting technical requirement is low, and the safety risk is integrally reduced.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
A device for replacing a slewing bearing of a stacker-reclaimer comprises a driving mechanism, wherein the driving mechanism is connected with an upright platform on the upper part of the slewing bearing, a guide mechanism is arranged on the outer ring of the slewing bearing, the direction of the guide mechanism is parallel to the direction of the slewing bearing to enter and exit, and a slideway for the slewing bearing to enter and exit is arranged between the slewing bearing and a door seat on the lower part of the slewing bearing.
Furthermore, the door seat further comprises a guide rod, the guide rod sequentially penetrates through the outer ring of the slewing bearing and the bolt holes in the door seat, and the bolt holes correspond to the outer ring in position.
Furthermore, the number of the guide rods is four, and the guide rods are uniformly arranged in the outer ring of the slewing bearing.
Furthermore, the driving mechanism is a hydraulic jacking cylinder.
Furthermore, the hydraulic jacking cylinders are a plurality of, and the hydraulic jacking cylinders are connected with an oil supply mechanism to realize synchronous lifting.
Furthermore, the number of the hydraulic jacking cylinders is four, and the four hydraulic jacking cylinders are respectively connected with four corners of the upright post platform.
Furthermore, the door frame further comprises a fixing mechanism, and the fixing mechanism is arranged between the upright post platform and the door seat.
Furthermore, the surface of the slideway is provided with a lubricating layer.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model realizes the lifting of the upright platform by the driving mechanism to complete the separation of the slewing bearing and the upright platform, then removes the old slewing bearing and replaces the new slewing bearing, and compared with the traditional method, the utility model has the advantages that the replacement period of the slewing bearing is shorter and the efficiency is high; the inlet and the outlet of the slewing bearing are guided by a guide mechanism, and the mounting position of a new slewing bearing is ensured to be unchanged; the operation of entering and exiting the new slewing bearing and the old slewing bearing through the slide ways is simple and convenient, the hoisting technical requirement is low, and the safety risk is reduced;
(2) the utility model is also provided with the guide rod on the outer ring of the slewing bearing, and the outer ring of the slewing bearing is connected with the door seat, so that the bolt hole is arranged on the door seat position corresponding to the outer ring of the slewing bearing, and the guide rod passes through the outer ring of the slewing bearing and the bolt hole to take out the old slewing bearing for guiding, thereby avoiding the offset when the old slewing bearing is taken out, and ensuring the smooth installation of the new slewing bearing;
(3) when the driving mechanism jacks the upright post platform to a certain height to complete the replacement of the slewing bearing, a fixing mechanism is arranged between the door seat and the upright post platform, and the fixing mechanism plays a supporting role to strengthen the strength between the upright post platform and the door seat; secondly, the pressure relief condition of the hydraulic jacking cylinder is prevented, and the safety performance of the whole device is improved;
(4) the driving mechanism of the utility model is a hydraulic jacking cylinder, which has simple structure and stable power transmission, and the hydraulic jacking cylinders are a plurality of, the upright platform is jacked together to improve the working efficiency, and the hydraulic jacking cylinders are all connected with an oil supply mechanism to realize synchronous lifting, thereby improving the safety performance of the lifting of the upright platform and avoiding the loss caused by the inclination of the hydraulic jacking cylinders;
(5) the hydraulic jacking cylinders are four and are respectively connected with four corners of the stand platform, excessive hydraulic jacking cylinders are arranged to cause resource waste, and the hydraulic jacking cylinders arranged at the four corners of the stand platform can ensure the lifting stability of the stand platform; and the surface of the slide way is provided with the lubricating layer, so that the friction force of the slewing bearing on the slide way is reduced, the service life of the slewing bearing is prolonged, the working efficiency is improved, and the labor intensity of workers is effectively reduced.
Drawings
Fig. 1 is a schematic view of the installation structure of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a hydraulic schematic diagram of the present invention.
In the figure: 1. a fixing mechanism; 2. a drive mechanism; 3. a guide mechanism; 4. a slideway; 5. a guide bar; 6. a column platform; 7. a slewing bearing; 8. a door seat; 9. a hydraulic jacking cylinder; 10. a hydraulic control check valve; 11. an electromagnetic valve; 12. a shunting block; 13. an electromagnetic directional valve; 14. an oil pump; 15. a filter; 16. an overflow valve; 17. and an oil tank.
Detailed Description
The invention will be further described with reference to specific embodiments and drawings.
Example 1
As shown in fig. 1 and 2, a stacker-reclaimer slewing bearing replacing device comprises a driving mechanism 2, wherein the driving mechanism 2 is connected with an upright platform 6 at the upper part of a slewing bearing 7, and the driving mechanism 2 drives the upright platform 6 to ascend or descend for replacing a new slewing bearing 7 and an old slewing bearing 7; preferably, the driving mechanism 2 is a hydraulic jacking cylinder 9, the structure is simple, and power transmission is stable; of course, other driving mechanisms 2 such as air cylinders and motors which can realize the ascending or descending of the upright post platform 6 can be used in the utility model; the outer ring of the slewing bearing 7 is provided with a guide mechanism 3, the direction of the guide mechanism 3 is parallel to the in-out direction of the slewing bearing 7, and the guide mechanism 3 plays a role in guiding the in-out of the new slewing bearing 7 and the old slewing bearing 7; in this embodiment, the guide mechanisms 3 are two cross bars, the two cross bars are respectively arranged on two sides of the outer ring of the slewing bearing 7, and the directions of the cross bars are parallel to the inlet and outlet directions of the slewing bearing 7, so that the old slewing bearing 7 can be taken out smoothly, the new slewing bearing 7 can be installed at the original position, and the installation effect of the new slewing bearing 7 is ensured; other guide mechanisms 3 which can play a role in guiding and limiting, such as channel steel, steel plates and the like, can be used in the utility model; a slideway 4 for the rotary bearing 7 to go in and out is arranged between the rotary bearing 7 and a door seat 8 at the lower part of the rotary bearing 7, the slideway 4 plays a supporting role in the going in and out of the new and old rotary bearings 7, and the slideway 4 is matched with a chain block to realize the going in and out of the new and old rotary bearings 7, namely, the old rotary bearing 7 slides out of the slideway 4 through the chain block and then the truck crane is lifted out in an auxiliary way; the truck crane lifts the new slewing bearing 7 to the slideway 4, the new slewing bearing 7 is pulled into the bolt hole position by the chain block, and the bolt hole is used for connecting the new slewing bearing 7 with the upright post platform 6 and the door seat 8, so that the new slewing bearing 7 and the old slewing bearing 7 can smoothly enter and exit and have high efficiency.
The utility model discloses an actuating mechanism 2 carries out the jacking to stand platform 6 and makes stand platform 6 break away from with old slewing bearing 7, and carry out dismantling of outer lane bolt to old slewing bearing 7, change new slewing bearing 7, it is fixed with stand platform 6 to circle bolt in 7 new slewing bearing again, 7 outer lane bolts of new slewing bearing are fixed with door-base 8, whole process is consuming time shorter generally not more than 10 days, and high efficiency, low cost, lower then the safety risk of whole operation process has been reduced to the hoisting technology requirement, and can guarantee that 7 mounted position of new slewing bearing are unanimous with 7 mounted position of original slewing bearing, the stability of installation has been increased, make things convenient for the follow-up normal work of stacker-reclaimer. The overall structure is simple, the construction period is shortened by about 70% compared with the traditional replacement method, the cost is reduced by about 60%, and the method has higher use significance.
Example 2
Basically, like embodiment 1, the present embodiment further includes a guide rod 5, the guide rod 5 sequentially penetrates through the outer ring of the slewing bearing 7 and the bolt holes on the door seat 8, and the bolt holes correspond to the outer ring; specifically, as the inner and outer ring bolts of the old slewing bearing 7 need to be removed, after the outer ring bolt of the old slewing bearing 7 is removed, the outer ring of the old slewing bearing 7 is connected with the door seat 8, so the bolt in the bolt hole on the door seat 8 is also removed, at this time, the guide rod 5 is inserted into the outer ring and the bolt hole of the old slewing bearing 7, the guide rod 5 plays a role in guiding the subsequent removal of the old slewing bearing 7, the offset of the old slewing bearing 7 in the removal process is avoided, and the smoothness of the removal process is ensured; preferably, in this embodiment, the number of the guide rods 5 is four, and the guide rods are uniformly arranged in the outer ring of the slewing bearing 7, so that the guide function of the old slewing bearing 7 is improved, the old slewing bearing is not easily influenced by the external environment, and the single guide rod 5 is prevented from being easily influenced by the old slewing bearing 7 and easily deviating.
Example 3
Basically, as in embodiment 2, in this embodiment, the number of the hydraulic jacking cylinders 9 is multiple, and the multiple hydraulic jacking cylinders 9 are all connected with an oil supply mechanism to achieve synchronous lifting, and the arrangement of the multiple hydraulic jacking cylinders 9 improves the jacking efficiency of the column platform 6 and improves the jacking stability; meanwhile, the damage of the single hydraulic jacking cylinder 9 does not influence the whole work, and shares the weight of the part above the upright post platform 6 together; specifically, as shown in fig. 3, the oil supply mechanism includes an oil tank 17, the oil tank 17 is connected to an oil pump 14, a filter 15 is disposed between the oil pump 14 and the oil tank 17, the filter 15 is used for filtering impurities in hydraulic oil, an electromagnetic directional valve 13, a flow dividing block 12, an electromagnetic valve 11, and a pilot operated check valve 10 are sequentially disposed between the oil pump 14 and a hydraulic jacking cylinder 9, the pilot operated check valve 10 is connected to the hydraulic jacking cylinder 9, the electromagnetic directional valve 13 is connected to the oil pump 14, and an overflow valve 16 is further disposed on the oil pump 14, and the overflow valve 16 plays a role in protection; the working principle of the oil supply mechanism is as follows: when the hydraulic jacking cylinder 9 needs to be jacked upwards, the oil pump 14 works, the electromagnetic directional valve 13 is operated to enable the valve core to be located at the left position, hydraulic oil enters the lower cavity of the hydraulic jacking cylinder 9 through the electromagnetic valve 11 and the hydraulic control one-way valve 10 after being shunted by the shunting block 12, and the hydraulic oil pushes a piston rod in the hydraulic jacking cylinder 9 to ascend, so that synchronous ascending of a plurality of hydraulic jacking cylinders 9 is realized; the oil in the upper cavity of the hydraulic jacking cylinder 9 returns to the oil tank 17 through the oil pipe and the flow dividing block 12. When the oil pressure in the main oil way is too high, the overflow valve 16 opens the hydraulic oil and the hydraulic oil flows back to the oil tank 17 through the overflow valve 16, so that the protection effect is achieved; when the hydraulic jacking cylinder 9 needs to descend, the oil pump 14 works, the electromagnetic directional valve 13 is operated, the valve core is in the right position, hydraulic oil enters the upper cavity of the hydraulic jacking cylinder 9 after being shunted by the shunting block 12, and the hydraulic oil pushes the piston rod in the hydraulic jacking cylinder 9 to descend, so that synchronous descending of the hydraulic jacking cylinders 9 is realized; and the oil in the lower cavity of the hydraulic jacking cylinder 9 flows back to the oil tank 17 through the oil pipe, the hydraulic control one-way valve 10 (conducted under the action of oil pressure), the electromagnetic valve 11 and the flow dividing block 12; when one of the hydraulic jacking cylinders 9 needs to be lifted, the valve core of the electromagnetic valve 11 connected with the hydraulic jacking cylinder 9 is arranged at the right position, the valve cores of the electromagnetic valves 11 of other hydraulic jacking cylinders 9 are arranged at the left position, the oil way at the left position is not communicated, and other processes are consistent with the synchronous lifting process; overall structure is simple, and the synchronism is high for the lift of stand platform 6 has higher security performance.
Specifically, in this implementation hydraulic jacking jar 9 is four, and four hydraulic jacking jars 9 are connected with four angles of stand platform 6 respectively, and too much hydraulic jacking jar 9 sets up and causes the wasting of resources, sets up the stability that hydraulic jacking jar 9 can guarantee that stand platform 6 goes up and down on four angles of stand platform 6.
Example 4
Basically, like the embodiment 3, the present embodiment further includes a fixing mechanism 1, the fixing mechanism 1 is disposed between the pillar platform 6 and the door seat 8, when the pillar platform 6 has risen to a height at which the slewing bearing 7 can be operated, the fixing mechanism 1 is disposed between the pillar platform 6 and the door seat 8, and the fixing mechanism 1 plays a supporting role to strengthen the strength between the pillar platform 6 and the door seat 8; secondly, the hydraulic jacking cylinder 9 is prevented from being decompressed, and the safety performance of the whole device is improved; the fixing mechanism 1 can be a steel plate or a beam welded between the upright post platform 6 and the door seat 8, and other fixing mechanisms 1 which can play a role in supporting and fixing can be used in the utility model; furthermore, a lubricating layer is arranged on the surface of the slide way 4, and the lubricating layer is a coating formed by coating a lubricant on the surface of the slide way 4, so that the friction of the new and old slewing bearing 7 on the slide way 4 is reduced, the service lives of the new and old slewing bearing 7 and the slide way 4 are prolonged, the working efficiency is improved, and the labor intensity is reduced.
The examples of the utility model are only right the utility model discloses a preferred embodiment describes, and not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design idea, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.
Claims (8)
1. The utility model provides a stacker-reclaimer slewing bearing changes device which characterized in that: the device comprises a driving mechanism (2), wherein the driving mechanism (2) is connected with an upright post platform (6) at the upper part of a slewing bearing (7), a guide mechanism (3) is arranged on the outer ring of the slewing bearing (7), the direction of the guide mechanism (3) is parallel to the in-and-out direction of the slewing bearing (7), and a slide way (4) for the slewing bearing (7) to enter and exit is arranged between the slewing bearing (7) and a door seat (8) at the lower part of the slewing bearing (7).
2. The stacker-reclaimer slewing bearing replacing device of claim 1, wherein: the door lock further comprises a guide rod (5), wherein the guide rod (5) sequentially penetrates through the outer ring of the slewing bearing (7) and bolt holes in the door seat (8), and the bolt holes correspond to the outer ring in position.
3. The stacker-reclaimer slewing bearing replacing device of claim 2, wherein: the number of the guide rods (5) is four, and the guide rods are uniformly arranged in the outer ring of the slewing bearing (7).
4. The stacker-reclaimer slewing bearing replacing device of claim 1, wherein: the driving mechanism (2) is a hydraulic jacking cylinder (9).
5. The stacker-reclaimer slewing bearing replacing device of claim 4, wherein: the hydraulic jacking cylinders (9) are a plurality of, and the hydraulic jacking cylinders (9) are connected with an oil supply mechanism to realize synchronous lifting.
6. The stacker-reclaimer slewing bearing replacing device of claim 5, wherein: the number of the hydraulic jacking cylinders (9) is four, and the four hydraulic jacking cylinders (9) are respectively connected with four corners of the upright post platform (6).
7. The stacker-reclaimer slewing bearing replacing device of claim 4, wherein: the door frame further comprises a fixing mechanism (1), and the fixing mechanism (1) is arranged between the upright post platform (6) and the door seat (8).
8. The stacker-reclaimer slewing bearing replacing device of claim 1, wherein: the surface of the slideway (4) is provided with a lubricating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020940445.9U CN212470439U (en) | 2020-05-28 | 2020-05-28 | Replacing device for slewing bearing of stacker-reclaimer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020940445.9U CN212470439U (en) | 2020-05-28 | 2020-05-28 | Replacing device for slewing bearing of stacker-reclaimer |
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| CN212470439U true CN212470439U (en) | 2021-02-05 |
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| CN202020940445.9U Active CN212470439U (en) | 2020-05-28 | 2020-05-28 | Replacing device for slewing bearing of stacker-reclaimer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894526A (en) * | 2021-10-30 | 2022-01-07 | 江阴怡源设备安装有限公司 | Method and equipment for quickly replacing slewing bearing of stock yard stacker-reclaimer |
-
2020
- 2020-05-28 CN CN202020940445.9U patent/CN212470439U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894526A (en) * | 2021-10-30 | 2022-01-07 | 江阴怡源设备安装有限公司 | Method and equipment for quickly replacing slewing bearing of stock yard stacker-reclaimer |
| CN113894526B (en) * | 2021-10-30 | 2023-07-21 | 江阴怡源设备安装有限公司 | Quick replacement method and equipment for slewing bearing of stock yard stacker-reclaimer |
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Denomination of utility model: A device for replacing the rotary support of a stacker reclaimer Granted publication date: 20210205 Pledgee: Maanshan Branch of Agricultural Bank of China Co.,Ltd. Pledgor: MAANSHAN CITY HARBOUR (CORP.) LLC Registration number: Y2024980012871 |