CN112589421A - Mounting and dismounting device and mounting and dismounting method of speed reducer for roller press - Google Patents
Mounting and dismounting device and mounting and dismounting method of speed reducer for roller press Download PDFInfo
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- CN112589421A CN112589421A CN202011479379.0A CN202011479379A CN112589421A CN 112589421 A CN112589421 A CN 112589421A CN 202011479379 A CN202011479379 A CN 202011479379A CN 112589421 A CN112589421 A CN 112589421A
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- speed reducer
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- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention discloses an installation and disassembly device and an installation and disassembly method of a speed reducer for a roller press, wherein the device comprises a rail plate car which only moves horizontally; the track plate trolley is provided with two auxiliary supporting devices which are longitudinally distributed along a roller shaft of the roller press, the auxiliary supporting devices respectively support two parts of the speed reducer through a V-shaped or arc-shaped groove on a speed reducer supporting wall plate, and the speed reducer supporting wall plate can be arranged on the track plate trolley in a lifting and transverse moving mode. The mounting and dismounting method is implemented based on the device, and the mounting process further comprises the step of detecting the radial run-out value of the other one of the hollow shaft of the speed reducer and the roll shaft of the roll squeezer through a dial indicator or a dial indicator erected on the other one of the hollow shaft of the speed reducer and the roll shaft of the roll squeezer to obtain the alignment effect. The mounting and dismounting device has the advantages that the mounting and dismounting device is simple in structure and reliable in function, mounting accuracy can be effectively guaranteed, and the hollow shaft is free of damage hidden danger; the mounting and dismounting operations are simple, the requirement on the skill of mounting personnel is low, and the mounting and dismounting efficiency is high.
Description
Technical Field
The invention relates to a large-scale speed reducer equipment installation technology, in particular to an installation and disassembly device and an installation and disassembly method of a speed reducer for a roller press.
Background
The roller press is a novel energy-saving grinding device which is suitable for large-scale development of the market and can obviously improve the yield of a grinding system and reduce the energy consumption. The power consumption of the grinding system can be reduced by 30% and the yield can be improved by more than 50% by adopting the equipment in the grinding process. The powder grinding machine can be used for grinding brittle materials in the fields of building materials, coal, metallurgy, chemical raw materials and the like, and has wide market prospect. The transmission system of the roller press consists of a motor, a universal joint and a speed reducer, wherein the speed reducer is installed on the shaft head of the roller shaft in a fastening connection mode through an output hollow shaft in a sleeved mode by a locking disc. The existing installation method of the speed reducer generally adopts a lifting rope to connect four lifting holes of the speed reducer, then the lifting rope is connected to the position of a lifting hook of a crane, a hollow shaft of the speed reducer is installed into a shaft head of a roller shaft through the movement of the crane, and a locking disc is locked while the center line of the speed reducer and the center line of the roller shaft are aligned, so that the installation requirement is finally met; the defect is that the crane can only lift one point position, the direction of the axial lead of the speed reducer cannot be flexibly adjusted, the lifting height can only be identified by naked eyes, the subsequent alignment is difficult, the process is complicated, an operator needs to have rich experience and higher operation skill, the time is long, and the consumption of manpower and material resources is high. After the operation, the speed reducer is maintained and disassembled by a crane, and the axial lead of the speed reducer slightly deviates to cause the locking of the hollow shaft and the shaft head of the roll shaft, thereby causing great difficulty for the disassembly and even directly damaging the hollow shaft of the speed reducer in serious conditions. In the practical project implementation process, how to accurately position the axis of the speed reducer, quickly align and mount the speed reducer, and quickly separate the hollow shaft of the speed reducer from the shaft head during disassembly, so that the hollow shaft of the speed reducer is effectively protected, which is a problem to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defect that the speed reducer for the existing rolling machine is difficult to install and disassemble, and provides an installing and disassembling device for the speed reducer for the rolling machine. The second purpose of the invention is to provide a speed reducer mounting method for the rolling mill based on the device. The third purpose of the invention is to provide a method for disassembling the speed reducer for the rolling mill based on the device.
In order to achieve the first object, the invention adopts the following technical scheme.
The mounting and dismounting device of the speed reducer for the roller press comprises a rail plate trolley which can only move along a horizontal rail, wherein the horizontal rail is longitudinally paved on a foundation along a roller shaft of the roller press; the track plate trolley is provided with two auxiliary supporting devices which are longitudinally distributed along a roll shaft of the roll squeezer, and the two auxiliary supporting devices respectively form a support for two parts of the speed reducer through a speed reducer supporting wall plate; the supporting part of the speed reducer supporting wallboard is of a V-shaped or circular arc-shaped groove structure, and the speed reducer supporting wallboard is arranged on the track plate car in a lifting and transversely moving mode.
By adopting the technical scheme, in the installation process of the speed reducer, the speed reducer is supported by the two auxiliary supporting devices and longitudinally moves along the roller shaft of the roller press by the track plate car, and the weight of the speed reducer and the whole device is transmitted to a foundation through the track plate car and the horizontal track. Because the supporting part of the speed reducer supporting wallboard is in a V-shaped or circular arc-shaped groove structure, the whole speed reducer adopts an axially-distributed double-supporting mode, the weight of the speed reducer is uniformly distributed on the track plate trailer and the horizontal track, and the speed reducer is always in a stable posture convenient to install; meanwhile, the speed reducer is used for supporting the lifting and the transverse movement of the wallboard on the track plate trolley, so that the axis of the speed reducer can be aligned with the axis of the roller shaft of the roller press conveniently, and the smooth installation is guaranteed. The mounting device is simple in structure and reliable in function, and can effectively improve mounting efficiency and reduce the technical requirement of mounting personnel and mounting precision compared with a hoisting mounting mode, and the hidden danger of damaging a hollow shaft of the speed reducer is avoided. And after the speed reducer is installed, the horizontal rail can be kept in the original position without being detached so as to be used during maintenance of the speed reducer.
Preferably, the speed reducer supporting wall plate can be connected with the track plate car through a middle bearing beam, the speed reducer supporting wall plate can be transversely movably arranged on the middle bearing beam, and the middle bearing beam can be arranged on the track plate car in a lifting mode. The functions of lifting and transversely moving the speed reducer supporting wall plate on the track plate trolley are realized through a simple structure, the failure rate is reduced, and the manufacturing cost is reduced.
Preferably, the middle bearing beam is composed of a middle horizontal section and extension sections with two ends extending downwards; a hydraulic jack is arranged between the middle horizontal section of the middle bearing beam and the bearing surface of the track plate car, and vertical guide rail pair structures are formed between the extension sections at the two ends of the middle bearing beam and the upward extension columns at the corresponding sides of the track plate car respectively. The lifting of the middle bearing beam is realized through a simple structure, and the characteristic of strong axial bearing capacity of the hydraulic jack is utilized as a bearing member, so that the service life and the reliability are ensured. Wherein, the integral structure can be made into to the middle horizontal segment of middle carrier bar and two extension sections three, also can make three integrated configuration, and the integral structure rigidity is better, and the integrated configuration is convenient for process. In addition, the vertical guide rail pair structure can adopt a dovetail type guide rail, a rectangular guide rail or a combined guide rail structure form combining a rectangle and a triangle.
Preferably, a transverse guide rail pair and a screw nut pair adjusting structure are formed between the speed reducer supporting wall plate and the middle bearing beam. The transverse adjustment is realized by utilizing a mature adjusting structure, wherein the transverse guide rail pair is preferably in a dovetail shape, so that a screw nut pair is arranged in the middle of the guide rail in the width direction, and the space can be effectively saved.
Preferably, the rail plate car is provided with a displacement sensor for detecting the supporting position of the auxiliary supporting device. The accurate supporting position of the auxiliary supporting device is detected through the sensor, and the alignment effect of the hollow shaft of the speed reducer and the rolling shaft of the rolling machine is ensured.
Further preferably, the displacement sensor is of a non-contact type. The test result is obtained in a non-contact mode, the structure is simplified, and the fault point and the fault rate are reduced.
Preferably, the horizontal rail is made of I-shaped steel; and the rolling wheels of the track plate car are provided with limiting flanges. The rail material which is convenient to purchase is utilized, so that the cost is reduced; the limiting function of the roller limiting flange is utilized to limit the transverse position of the trolley, and guarantee is provided for the reliability of the position adjustment result of the auxiliary supporting device.
In order to achieve the second object, the invention adopts the following technical scheme.
A method for installing a speed reducer for a roller press is implemented on the basis of a device for realizing the first purpose; the method comprises the following steps:
firstly, hanging a speed reducer on a speed reducer supporting wall plate to form a support for two parts of the speed reducer through the speed reducer supporting wall plate;
secondly, moving the track plate vehicle to enable the hollow shaft of the speed reducer to be close to the shaft head of the roll shaft of the rolling machine;
thirdly, supporting the wallboard through lifting movement and transverse movement of the speed reducer, and aligning the axis of the hollow shaft of the speed reducer with the axis of the roll shaft of the roll squeezer;
and fourthly, connecting the speed reducer with a roll shaft of the roll squeezer together through locking of the locking disc.
By adopting the installation method of the technical scheme, the speed reducer is supported by the two auxiliary supporting devices, and under the action of external force, the longitudinal movement is completed by the aid of the track plate car, and the weight of the speed reducer and the whole device is transmitted to a foundation through the track plate car and the horizontal track. Because the supporting part of the speed reducer supporting wallboard is in a V-shaped or circular arc-shaped groove structure, the whole speed reducer adopts an axially-distributed double-supporting mode, the weight of the speed reducer is uniformly distributed on the track plate trailer and the horizontal track, and the speed reducer is always in a stable posture convenient to install; meanwhile, the speed reducer is used for supporting the lifting and the transverse movement of the wallboard on the track plate trolley, so that the axis of the speed reducer is aligned with the axis of the roller shaft of the roller press conveniently, and the installation is further completed smoothly. After the speed reducer is installed, the rail plate car provided with the two auxiliary supporting devices is removed from the installation position, and the horizontal rail is kept in place for use during maintenance of the speed reducer.
Preferably, in the process of aligning the axis of the hollow shaft of the speed reducer with the axis of the roll shaft of the roll squeezer, the height adjustment is carried out by using a hydraulic jack, and height adjustment data is obtained through a displacement sensor; the left and right adjustment is carried out by utilizing the screw-nut pair, and the alignment effect is obtained by detecting the radial runout value of the other one of the speed reducer hollow shaft and the roll squeezer roller shaft through a dial indicator or a dial indicator erected on any one of the speed reducer hollow shaft and the roll squeezer roller shaft. The aligning effect of the shaft line of the hollow shaft of the speed reducer and the shaft line of the roll shaft of the roll squeezer is further ensured, and the installation precision and the installation quality are ensured.
In order to achieve the third object, the invention adopts the following technical scheme.
A method for disassembling a speed reducer for a roller press is implemented on the basis of a device for realizing the first purpose; the method comprises the following steps:
firstly, hoisting the rail plate car provided with two auxiliary supporting devices on the horizontal rail;
secondly, moving the rail plate trailer to enable the two auxiliary supporting devices to be aligned with the two supporting parts of the speed reducer;
thirdly, adjusting the heights of the two auxiliary supporting devices and finely adjusting the transverse positions to enable the two auxiliary supporting devices to form lifting of the speed reducer through the two supporting positions of the speed reducer respectively;
and fourthly, loosening the locking disc to enable the hollow shaft of the speed reducer to be separated from the shaft head of the roller shaft of the roller press.
The disassembly method adopting the technical scheme is carried out by utilizing the horizontal rail reserved in situ and the rail plate car with two speed reducer supporting wallboards. The supporting parts of the two speed reducer supporting wallboards are in V-shaped or arc-shaped groove structures, and the V-shaped or arc-shaped grooves and the corresponding supporting parts of the speed reducers are aligned conveniently by means of the lifting and transverse movement of the speed reducer supporting wallboards on the track plate trolley, so that the speed reducers are stably and reliably supported before being disassembled; after the speed reducer is separated from the roller press through the locking disc, the speed reducer can be hung, or the speed reducer can be hung again in a state of being away from the roller press through the movement of the track plate car, or the speed reducer can be maintained directly on the track plate car.
The mounting and dismounting device has the advantages that the mounting and dismounting device is simple in structure and reliable in function, can be conveniently used for mounting and dismounting the speed reducer for the rolling press, can effectively guarantee mounting accuracy relative to a hoisting mounting mode, and does not have the hidden trouble of damaging a hollow shaft of the speed reducer; the mounting method and the dismounting operation are simple, the requirement on the skill of mounting personnel is low, and the mounting and dismounting efficiency is high.
Drawings
FIG. 1 is a schematic front view of the apparatus of the present invention.
Fig. 2 is a left side view of fig. 1 of the present invention.
The above figures also serve to illustrate the mounting and dismounting method of the invention.
Detailed Description
The present invention is further described with reference to the accompanying drawings, but the invention is not limited thereby within the scope of the described embodiments.
The speed reducer supporting wall plate 41 can be connected with the track plate trolley 45 through a middle bearing beam 42, the speed reducer supporting wall plate 41 can be transversely movably arranged on the middle bearing beam 42, and the middle bearing beam 42 can be arranged on the track plate trolley 45 in a lifting mode. The middle bearing beam 42 is of a three-section integral structure formed by a middle horizontal section and extension sections with two ends extending downwards; two hydraulic jacks 43 are arranged between the middle horizontal section of each middle bearing beam 42 and the bearing surface of the rail plate car 45, and vertical guide rail pair structures are formed between the extension sections at the two ends of the middle bearing beam 42 and the upward extension columns on the corresponding sides of the rail plate car 45 respectively. A transverse guide rail pair and a screw nut pair adjusting structure are formed between the speed reducer supporting wall plate 41 and the middle bearing beam 42; the horizontal rail 5 is made of I-shaped steel; the rollers of the rail plate trailer 45 are provided with limiting flanges, and the limiting flanges of the rollers are positioned on the inner side of the horizontal rail 5 so as to reduce the transverse size.
Wherein, the track plate car 45 is provided with a displacement sensor 44 for detecting the supporting position of the auxiliary supporting device, the displacement sensor 44 adopts a non-contact type, and the displacement sensor 44 is upwards arranged on a bearing platform of the track plate car 45 according to the detection direction; the end of the extending section of the middle bearing beam 42 is formed with a monitoring section extending outwards, the monitoring section is aligned with the displacement sensor 44 above the displacement sensor 44, and the displacement sensor 44 is used as the detection result of the lifting height of the speed reducer supporting wall plate 41 by detecting the position of the monitoring section.
In this embodiment, the supporting portion of the speed reducer supporting wall plate 41 may also be a V-shaped groove structure; the intermediate load beam 42 may also be a three-section combination structure.
In the implementation, the vertical guide rail pair structure can adopt a dovetail guide rail, a rectangular guide rail or a combined guide rail structure form of combining a rectangle and a triangle; the transverse guide rail pair adopts a dovetail type guide rail structure form.
In the drawings, the X direction is the transverse direction, the Y direction is the longitudinal direction, and the Z direction is the vertical direction.
firstly, hanging a speed reducer 1 on a speed reducer supporting wall plate 41 to form a support for two parts of the speed reducer through the speed reducer supporting wall plate 41;
secondly, moving the rail plate vehicle 45 to enable the hollow shaft 33 of the speed reducer to be close to the shaft head of the roller press roll shaft;
thirdly, supporting the wallboard 41 through lifting movement and transverse movement of the speed reducer, so that the axis of the hollow shaft 33 of the speed reducer is aligned with the axis of the roll shaft of the roll squeezer;
and fourthly, connecting the speed reducer 3 with the roller shaft 1 of the roller press through locking of the locking disc 2.
In the process of aligning the axis of the hollow shaft 33 of the speed reducer with the axis of the roll shaft of the roll squeezer, a hydraulic jack is used for height adjustment, and height adjustment data are obtained through a displacement sensor 44; the left and right adjustment is carried out by utilizing the screw-nut pair, and the alignment effect is obtained by detecting the radial runout value of the other one through a dial indicator or a dial indicator erected on any one of the hollow shaft 33 of the speed reducer and the roll shaft of the roll squeezer.
firstly, hoisting the track plate car 45 provided with two auxiliary supporting devices on the horizontal track 5;
secondly, moving the rail plate trailer 45 to enable the two auxiliary supporting devices to be aligned with the two supporting parts of the speed reducer;
thirdly, adjusting the heights of the two auxiliary supporting devices and finely adjusting the transverse positions to enable the two auxiliary supporting devices to form lifting of the speed reducer through the two supporting positions of the speed reducer respectively;
and fourthly, loosening the locking disc to enable the hollow shaft 33 of the speed reducer to be separated from the shaft head of the roller shaft of the roller press 1.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The mounting and dismounting device of the speed reducer for the roller press is characterized by comprising a rail plate trolley (45) which can only move along a horizontal rail (5), wherein the horizontal rail (5) is longitudinally paved on a foundation (6) along a roller shaft of the roller press; the track plate trolley (45) is provided with two auxiliary supporting devices which are longitudinally distributed along a roll shaft of the roller press, and the two auxiliary supporting devices respectively form support for two parts of the speed reducer through a speed reducer supporting wall plate (41); the supporting part of the speed reducer supporting wall plate (41) is of a V-shaped or circular arc-shaped groove structure, and the speed reducer supporting wall plate (41) can be arranged on the track plate trolley (45) in a lifting and transverse moving mode.
2. The device according to claim 1, characterized in that the reducer support wall plate (41) is connected with the rail plate wagon (45) through a middle bearing beam (42), the reducer support wall plate (41) is transversely movably arranged on the middle bearing beam (42), and the middle bearing beam (42) is arranged on the rail plate wagon (45) in a liftable manner.
3. The device according to claim 2, characterized in that the intermediate load beam (42) is constituted by an intermediate horizontal section and an extension section extending downwards at both ends; a hydraulic jack (43) is arranged between the middle horizontal section of the middle bearing beam (42) and the bearing surface of the track plate trolley (45), and vertical guide rail pair structures are formed between the extension sections at the two ends of the middle bearing beam (42) and the upward extension columns at the corresponding sides of the track plate trolley (45).
4. The device according to claim 2, characterized in that a transverse guide rail pair and a lead screw nut pair adjusting structure are formed between the speed reducer supporting wall plate (41) and the middle bearing beam (42).
5. The device according to any one of claims 1 to 4, wherein the rail plate trailer (45) is provided with a displacement sensor (44) for detecting the supporting position of the auxiliary supporting device.
6. Device according to claim 5, characterized in that said displacement sensor (44) is of the non-contact type.
7. The device according to any one of claims 1 to 4, characterized in that the horizontal rail (5) is made of I-steel; and the roller of the rail plate trolley (45) is provided with a limiting flange.
8. A method for mounting a speed reducer for a roll press, characterized by being carried out based on the apparatus according to any one of claims 1 to 7; the method comprises the following steps:
firstly, hanging a speed reducer on a speed reducer supporting wall plate (41) so as to form a support for two parts of the speed reducer through the speed reducer supporting wall plate (41);
secondly, moving the rail plate trolley (45) to enable the hollow shaft (33) of the speed reducer to be close to the shaft head of the roller shaft of the roller press;
thirdly, supporting the wallboard (41) by lifting and transversely moving the speed reducer, and aligning the axis of the hollow shaft (33) of the speed reducer with the axis of the roll shaft of the roll squeezer;
and fourthly, the speed reducer (3) is connected with the roll shaft (1) of the roll squeezer through locking of the locking disc (2).
9. The method according to claim 8, characterized in that during the alignment of the axes of the hollow reducer shafts (33) with the axes of the roller shafts of the roller press, it comprises height adjustment by means of hydraulic jacks and height adjustment data obtained by means of displacement sensors (44); the left and right adjustment is carried out by utilizing the screw-nut pair, and the alignment effect is obtained by detecting the radial runout value of the other dial indicator or dial indicator erected on any one of the hollow shaft (33) of the speed reducer and the roll shaft of the roll squeezer.
10. A method for disassembling a speed reducer for a roller press, which is implemented based on the device of any one of claims 1 to 7; the method comprises the following steps:
firstly, hoisting the track plate car (45) provided with two auxiliary supporting devices on the horizontal track (5);
secondly, moving the rail plate trolley (45) to enable the two auxiliary supporting devices to be aligned with the two supporting parts of the speed reducer;
thirdly, adjusting the heights of the two auxiliary supporting devices and finely adjusting the transverse positions to enable the two auxiliary supporting devices to form lifting of the speed reducer through the two supporting positions of the speed reducer respectively;
and fourthly, loosening the locking disc to enable the hollow shaft (33) of the speed reducer to be separated from the shaft head of the roller shaft (1) of the roller press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011479379.0A CN112589421A (en) | 2020-12-14 | 2020-12-14 | Mounting and dismounting device and mounting and dismounting method of speed reducer for roller press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011479379.0A CN112589421A (en) | 2020-12-14 | 2020-12-14 | Mounting and dismounting device and mounting and dismounting method of speed reducer for roller press |
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| Publication Number | Publication Date |
|---|---|
| CN112589421A true CN112589421A (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011479379.0A Pending CN112589421A (en) | 2020-12-14 | 2020-12-14 | Mounting and dismounting device and mounting and dismounting method of speed reducer for roller press |
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| CN (1) | CN112589421A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113770700A (en) * | 2021-09-13 | 2021-12-10 | 宝武集团马钢轨交材料科技有限公司 | Dismounting method for high-speed rail wheel mill hollow shaft assembly |
-
2020
- 2020-12-14 CN CN202011479379.0A patent/CN112589421A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113770700A (en) * | 2021-09-13 | 2021-12-10 | 宝武集团马钢轨交材料科技有限公司 | Dismounting method for high-speed rail wheel mill hollow shaft assembly |
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