CN108527246B - Coupler dismounting device and application method thereof - Google Patents
Coupler dismounting device and application method thereof Download PDFInfo
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- CN108527246B CN108527246B CN201810378233.3A CN201810378233A CN108527246B CN 108527246 B CN108527246 B CN 108527246B CN 201810378233 A CN201810378233 A CN 201810378233A CN 108527246 B CN108527246 B CN 108527246B
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- push rod
- transmission
- coupler
- inner sleeve
- shaft
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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
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/56—Reuse, recycling or recovery technologies of vehicles
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Abstract
The invention discloses a coupler dismounting device which comprises a connecting bracket, a working push rod and an axle center centering device, wherein the working push rod is connected with the axle center centering device, the connecting bracket comprises a connecting plate and a central transmission hole for providing a working channel for the working push rod, and a strip-shaped connecting groove for connecting with a coupler is formed in the connecting plate. The working push rod is connected with the central transmission hole, and comprises a transmission push rod I, a transmission push rod II and a reversing inner sleeve push rod, wherein the reversing inner sleeve push rod is sleeved on the transmission push rod II, the transmission push rod I is sleeved on the reversing inner sleeve push rod, the push rod I is connected with the central transmission hole, the reversing inner sleeve push rod is connected with the axle center centering device, and the working push rod is a nesting mechanism which greatly prolongs the axial working length and can be used in a shorter space distance. The invention also discloses a using method of the dismounting device, which comprises the following steps: 1. connecting the connecting bracket with the coupler; 2. controlling the transmission push rod I to work; 3. the transmission push rod I is embedded into the inner ring surface of the coupler; 4. and controlling the transmission push rod II to work.
Description
Technical Field
The invention belongs to the technical field of dismounting devices, and particularly relates to a coupling dismounting device and a using method thereof.
Background
At present, the common tool for disassembling the coupler is a three-jaw umbrella rib type puller or a three-jaw hydraulic type puller, and because the appearance size of the tool is large, the tool has certain requirements on the working space, the working space cannot be too small, the three-jaw umbrella rib type puller or the three-jaw hydraulic type puller cannot be directly used in a narrow working space to disassemble the coupler, and in order to ensure that maintenance work is smoothly carried out, one side of equipment is required to be shifted for construction, and the defects of complex process, large working load, long construction period and the like are caused. In addition, the coupling and the transmission shaft are easily damaged due to uneven stress caused by the stress and the strength influence of the puller. In some units for steam turbine power generation, such as large heavy-duty rotating equipment of a high-pressure water supply pump, a short-section coupler is selected according to the installation position of the main equipment and different coupler types so as to facilitate disassembly. Therefore, the tool with the function of carrying out on-line on-site disassembly operation of the coupler in a short-distance space is designed, so that the operation efficiency is improved, the workload is reduced, the health state of equipment is improved, and the tool has very important practical significance for on-site safety production.
Disclosure of Invention
Aiming at the defects of the coupler dismounting device in the prior art, the invention aims to provide the coupler dismounting device which has the advantages of simple structure, convenient operation and capability of dismounting the coupler in a narrow space, equipment displacement is not needed, the on-line quick dismounting of the short-distance space coupler is realized, and the coupler dismounting operation time is shortened.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the utility model provides a shaft coupling dismounting device, includes linking bridge, work push rod and axle center centralizer, the work push rod with the axle center centralizer is connected, the work push rod is inside and outside mosaic structure, the work push rod includes transmission push rod I, transmission push rod II and switching-over inner skleeve push rod, switching-over inner skleeve push rod cup joints on the transmission push rod II, transmission push rod I cup joints on the switching-over inner skleeve push rod, push rod I with the center transmission hole is connected, switching-over inner skleeve push rod with the axle center centralizer is connected.
Further, the connecting bracket comprises a central transmission hole for providing a working channel for the working push rod and a connecting plate arranged along the circumferential direction of the outer wall of the central transmission hole, wherein a strip-shaped connecting groove used for being connected with a coupling is formed in the connecting plate, and a reinforcing rib plate is arranged at the joint of the connecting plate and the outer wall of the central transmission hole.
Further, the transmission push rod I and the transmission push rod II are respectively provided with external threads, the rotation direction of the external threads on the transmission push rod I is opposite to that of the external threads on the transmission push rod II, the central transmission hole is provided with internal threads matched with the external threads on the transmission push rod I, and the mounting hole II of the reversing inner sleeve push rod is provided with internal threads matched with the external threads on the transmission push rod II.
Further, a positioning hole I and a mounting hole I are further formed in the transmission push rod I, a strip-shaped groove is formed in the outer ring of the reversing inner sleeve push rod along the axial direction, and the reversing inner sleeve push rod penetrates through the positioning hole I through a pin shaft I and is connected to the transmission push rod I in a sliding mode.
Further, a groove and a positioning hole III are formed in one end, connected with the working push rod, of the shaft center centering device, the positioning hole III is perpendicular to the side wall of the groove, a centering protrusion is arranged on the end face, in contact with the shaft, of the shaft center centering device, and the centering protrusion is matched with a machining center hole of the shaft.
Further, a protrusion matched with the groove is arranged at one end, connected with the axle center centering device, of the reversing inner sleeve push rod, and a positioning hole II is formed in the protrusion.
Further, the protrusion of the reversing inner sleeve push rod is inserted into the groove of the axle center centering device, the positioning hole II is in butt joint communication with the positioning hole III, and the pin shaft II is inserted into the positioning hole II through the positioning hole III.
Further, a thrust bearing I is arranged in the mounting hole I and sleeved on the transmission push rod I, one end of the thrust bearing I is in close contact with the transmission push rod I, and the other end of the thrust bearing I is in close contact with the end face of the upper shoulder of the transmission push rod II.
Further, a thrust bearing II is arranged between the transmission push rod I and the axle center centering device, the thrust bearing II is sleeved on the outer wall of the groove, one end of the thrust bearing II is in close contact with the transmission push rod I, and the other end of the thrust bearing II is in close contact with the axle center centering device.
The invention also relates to a using method of the coupler dismounting device, which comprises the following steps:
step 1: firstly, detaching bolts connecting a pair of couplings, and matching a centering protrusion on an axle center centering device with a machining center hole of an axle installed on the coupling; then, connecting the connecting bracket of the dismounting device with a coupler to be dismounted, and adjusting bolts on the connecting grooves to enable the end face of the connecting bracket to be tightly connected with the end face of the coupler;
step 2: the transmission push rod I is rotated, the transmission push rod I moves into a central transmission hole, when the transmission push rod I moves to a position close to the coupler, an axle center centering device arranged at the forefront end of the transmission push rod I pushes against the end face of the axle journal, and an axle arranged on the coupler applies a reverse acting force to the connecting bracket, so that the connecting bracket moves away from the axle, and the connecting bracket is fixedly connected with the coupler, thereby driving the coupler to translate outwards;
step 3: the transmission push rod I is completely screwed into the central transmission hole of the connecting bracket, and if the coupler is not completely separated from the shaft, the transmission push rod I is embedded into the inner ring surface of the coupler to keep the horizontal positioning function, and the transmission push rod II is operated;
step 4: and rotating the transmission push rod II to push the reversing inner sleeve push rod to slide on the transmission push rod I, and transmitting the stress of the reversing inner sleeve push rod to the axle center centering device to continuously act on the end face of the axle journal arranged on the coupler, wherein the coupler continuously translates in the direction away from the axle until the coupler is detached from the axle.
The technical scheme of the invention has the advantages that:
1. the working push rod and the connecting bracket assembly are adopted, so that the dismounting device is suitable for dismounting a wide-range heavy-load rotary mechanical coupler, the long-strip-shaped connecting groove is formed in the connecting plate of the connecting bracket, the position of the bolt in the long-strip-shaped connecting groove can be adjusted according to the size of the coupler, and the universality of the dismounting device is enhanced; meanwhile, the transmission push rod I and the transmission push rod II adopt an inner push rod nesting mechanism and an outer push rod nesting mechanism to greatly prolong the axial working length, and can be used in a shorter space distance.
2. The coupler dismounting device is suitable for on-site dismounting of the coupler with the distance between two parts of the coupler being more than 200mm, is practical and portable, is simple to operate, and is suitable for on-site short-distance limited space operation requirements; the design of the axle center centering device and the driving push rod I are all screwed into the central transmission hole of the connecting bracket, the driving push rod I is embedded into the inner ring surface of the coupler to keep horizontal positioning, and the occurrence of faults such as deformation and the like caused by uneven stress of the coupler can be reduced.
3. When the equipment is overhauled, the disassembly device is utilized to disassemble the coupling, the working procedures of shifting, resetting and positioning equipment (such as a motor or a pump head), center adjustment, pipeline instrument and other accessory disassembly and assembly can be omitted, and only the center needs to be finely adjusted, so that the overhaul working procedures are simplified, the workload of operators is reduced, the overhaul time is greatly reduced, the hot standby state of the equipment is recovered and maintained in time, and the operation safety guarantee coefficient of a unit is improved.
4. The invention designs that the rotation direction of the external thread on the transmission push rod I is opposite to that of the external thread on the transmission push rod II, so as to ensure that when the internal transmission push rod II is rotated, the reversing inner sleeve push rod does not generate reverse acting force on the external transmission push rod I, and the looseness of the transmission push rod I in the working process is avoided.
5. On one hand, the thrust bearing can convert the rotation of the working push rod into the movement in the linear direction, and the end face of the shaft center centering device and the end face of the shaft arranged on the shaft coupling are prevented from relative rotation, so that the shaft is prevented from being worn; on the other hand, the function of reducing the friction resistance of the end face is achieved.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic view of a coupling dismounting device for a coupling dismounting device of the present invention
Fig. 2 is a front view of the coupling removing device of the present invention.
Fig. 3 is a cross-sectional view taken along A-A of fig. 1.
The labels in the above figures are respectively: 1. a connecting bracket; 10. a connecting plate; 11. a long strip-shaped connecting groove; 12. a central drive hole; 13. reinforcing rib plates; 2. a working push rod; 21. a transmission push rod I; 211. a mounting hole I; 212. positioning holes I; 22. a transmission push rod II; 221. a shoulder; 222. an inner polygonal hole; 23. reversing the push rod of the inner sleeve; 231. a mounting hole II; 232. a protrusion; 233. positioning holes II; 234. a strip-shaped groove; 3. an axis centering device; 31. a groove; 32. positioning holes III; 33. centering protrusions; 4. a pin I; 5. a pin II; 6. a thrust bearing I; 7. a thrust bearing II; 8. a coupling; 9. a shaft.
Detailed Description
In the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1 and 2, the coupling dismounting device comprises a connecting bracket 1, a working push rod 2 and an axis centering device 3, wherein the working push rod 2 is connected with the axis centering device 3, the connecting bracket 1 comprises a central transmission hole 12 for providing a working channel for the working push rod 2 and a connecting plate 10 arranged along the circumferential direction of the outer wall of the central transmission hole 12, a strip-shaped connecting groove 11 for connecting with a coupling 8 is formed in the connecting plate 10, and when the connecting bracket 1 and the coupling 8 are connected by using bolts to pass through the strip-shaped connecting groove 11, the positions of the bolts in the strip-shaped connecting groove can be adjusted according to the sizes of the coupling 8, so that the coupling dismounting device is suitable for the couplings 8 with different sizes, and the universality of the dismounting device is enhanced. The working push rod 2 is connected with a central transmission hole 12, and the central transmission hole 12 is provided with internal threads. The working push rod 2 comprises a transmission push rod I21, a transmission push rod II 22 and a reversing inner sleeve push rod 23, the reversing inner sleeve push rod 23 is sleeved on the transmission push rod II 22, the transmission push rod I21 is sleeved on the reversing inner sleeve push rod 23, the push rod I21 is connected with the central transmission hole 12, and the reversing inner sleeve push rod 23 is connected with the axle center centering device 3. The working push rod 2 is a nested mechanism, so that the axial working length is greatly prolonged, and the working push rod can be used in a short space distance.
The end of the shaft center centering device 3 connected with the working push rod 2 is provided with a groove 31 and a positioning hole III32, the positioning hole III32 is perpendicular to the side wall of the groove 31, the end face of the shaft center centering device 3 contacted with the shaft 9 is provided with a centering protrusion 33, the connecting groove 11 on the connecting support 1 is fixedly connected with the shaft coupling 8 through bolts, the centering protrusion 33 is matched with a machining center hole of the shaft arranged on the shaft coupling 8, the center of the dismounting device and the center of the shaft 9 are ensured to be on the same line, and uneven force application is avoided, so that the end face of the neck of the shaft 9 is worn.
The transmission push rod I21 is provided with external threads matched with internal threads on the central transmission hole 12, the transmission push rod I21 is in threaded connection with the connecting bracket 1, the transmission push rod I21 rotates through a tool, the transmission push rod I21 moves back and forth in the central transmission hole 12, and the transmission push rod II 22, the reversing inner sleeve push rod 23 and the axle center centering device 3 move together along with the transmission push rod I21. The transmission push rod I21 is also provided with a positioning hole I212 and a mounting hole I211, and the positioning hole I212 is perpendicular to the mounting hole I211.
In order to prevent the axle center centralizer 3 from rotating along with the rotation of the transmission push rod I21, the end surface of the axle center centralizer 3 and the end surface of the shaft 9 arranged on the coupler 8 rotate relatively, and the end surface of the neck of the shaft 9 is worn; so be equipped with thrust bearing II 7 between transmission push rod I21 and axle center centralizer 3, thrust bearing II 7 cup joints on the outer wall of recess 31, thrust bearing II 7's one end and transmission push rod I21 in close contact, thrust bearing II 7's the other end and axle center centralizer 3 in close contact, thrust bearing II 7 transmits the translation of rotation conversion of transmission push rod I21 to axle center centralizer 3, will rotate the translation in the removal in sharp direction, guarantees that there is not relative rotation between axle center centralizer 3 and the axle of installing on shaft coupling 8.
The reversing inner sleeve push rod 23 is provided with a mounting hole II 231 for mounting, the mounting hole II 231 is provided with an internal thread, the transmission push rod II 22 is provided with an external thread matched with the internal thread of the mounting hole II 231, the transmission push rod II 22 and the reversing inner sleeve push rod 23 are connected together through threaded matching, and the reversing inner sleeve push rod is placed in the mounting hole I211 of the transmission push rod I21. One end of the transmission push rod II 22 is arranged in the mounting hole II 231, the other end of the transmission push rod II 22 passes through the mounting hole I211 and is connected with the end face of the mounting hole I211 through a thrust bearing I6, namely, the thrust bearing I6 is arranged in the mounting hole I211 and is sleeved on the transmission push rod II 22, one end of the thrust bearing I6 is tightly contacted with the transmission push rod I21, the other end of the thrust bearing I6 is tightly contacted with the end face of a shoulder 221 on the transmission push rod II 22, and the other end face of the shoulder 221 is tightly contacted with the end face of a reversing inner sleeve push rod 23. An inner polygonal hole 222 is arranged at one end of the transmission push rod II 22 which is not matched with the reversing inner sleeve push rod 23 and is used for being matched with a force application tool to enable the transmission push rod II 22 to rotate. Through the rotatory transmission push rod I21 of instrument, transmission push rod II 22, switching-over inner skleeve push rod 23 and axle center centralizer 3 follow transmission push rod I21 and move together, thrust bearing I6 plays the effect that reduces the terminal surface friction resistance now.
The outer ring of the reversing inner sleeve push rod 23 is provided with a strip-shaped groove 231 along the axial direction, the reversing inner sleeve push rod 23 penetrates through the positioning hole I212 through the pin shaft I4 and stretches into the strip-shaped groove 231 to be connected to the transmission push rod I21, and the transmission push rod I21 is in sliding connection with the reversing inner sleeve push rod 23. A protrusion 232 matched with the groove 31 on the axle center centering device 3 is arranged at one end of the reversing inner sleeve push rod 23 connected with the axle center centering device 3, and a positioning hole II233 is arranged on the protrusion 232; when the protrusion 232 of the reversing inner sleeve push rod 23 is inserted into the groove 31 of the shaft center centering device 3, the axis of the positioning hole II233 is coincident with the axis of the positioning hole III32, namely the positioning hole II233 is communicated with the positioning hole III32, the pin shaft II 5 is inserted into the positioning hole II233 through the positioning hole III32, and the reversing inner sleeve push rod 23 and the shaft center centering device 3 are fixedly connected together.
To ensure that the reversing inner sleeve push rod 23 does not exert a reverse force on the outer drive push rod I21 when rotating the inner drive push rod II 22, if a reverse force is generated, the drive push rod I21 is liable to loosen. Therefore, the external thread on the transmission push rod I21 is designed to rotate in the opposite direction to the external thread on the transmission push rod II 22.
In order to strengthen the structure of the connecting bracket 1, a reinforcing rib plate 13 is arranged at the joint of the connecting groove 11 and the outer wall of the central transmission hole 12, the reinforcing rib plate 13 is in a right triangle shape, one right-angle side of the reinforcing rib plate 13 is connected to the connecting groove 11, and the other right-angle side of the reinforcing rib plate 13 is connected to the outer wall of the central transmission hole 12.
Preferably, the connecting bracket 1 comprises four connecting plates 10, the four connecting plates 10 are distributed around the central transmission hole 12 along the circumferential direction and are in a cross shape, each connecting plate 10 is provided with two reinforcing rib plates 13, and the reinforcing rib plates 13 are arranged on two sides of the connecting plate 10 along the length direction of the connecting plate 10.
The application method of the coupler dismounting device comprises the following steps:
step 1: disassembling bolts connecting a pair of couplings, and matching the centering protrusions 33 on the shaft center centralizer 3 with a machining center hole of a shaft 9 arranged on the coupling 8 to ensure the consistent shaft center; the connecting bracket 1 of the dismounting device is connected with one coupler 8 to be dismounted, namely, a connecting groove 11 on the connecting bracket 1 is connected with a flange hole on the coupler 8 through a bolt, and the bolt on the connecting groove 11 is adjusted to enable the end face of the connecting bracket 1 to be tightly connected with the end face of the coupler 8.
Step 2: when the transmission push rod I21 is rotated and the transmission push rod I21 moves into the central transmission hole 12, and the transmission push rod I21 moves to a position close to the shaft coupler 8, the shaft center centering device 3 arranged at the forefront end of the transmission push rod I21 pushes against the end face of the shaft neck, and as the positions of the shaft and other devices connected on the shaft 9 on the shaft coupler 8 are fixed, the shaft 9 arranged on the shaft coupler 8 can apply a reverse acting force to the connecting support 1, so that the connecting support 1 moves in a direction away from the shaft 9, and the connecting support 1 is fixedly connected with the shaft coupler 8, so that the shaft coupler 8 is driven to translate outwards, namely, the shaft coupler 8 translates in a direction away from the shaft 9.
Step 3: the transmission push rod I21 is completely screwed into the central transmission hole 12 of the connecting bracket 1, and if the coupler 8 is not completely separated from the shaft 9, the transmission push rod I21 is embedded into the inner annular surface of the coupler 8 to keep the horizontal positioning function, and the transmission push rod II 22 is operated.
Step 4: the transmission push rod II 22 is rotated to push the reversing inner sleeve push rod 23 to slide on the transmission push rod I21, the force of the reversing inner sleeve push rod 23 is transmitted to the axle center centering device 3 to continuously act on the end face of the axle journal arranged on the coupler 8, the principle is the same as that of the step 2, the coupler 8 continuously translates in the direction away from the shaft 9 until the coupler 8 is completely separated from the shaft 9, namely, the coupler 8 is disassembled, and the whole length of the coupler 8 disassembling device is unchanged in the whole disassembling process.
The specification design of the connecting bracket 1 is selected according to the size of the coupler 8, so that the connecting bracket has strong universality; the working push rod 2 is of a double-layer embedded structure, the transmission push rod II 22 and the reversing inner sleeve push rod 23 are embedded in the transmission push rod I21, the transmission push rod I21 generates linear displacement through rotating the hexagonal body at the tail end, the reversing inner sleeve push rod 23 generates linear displacement through rotating the transmission push rod II 22, and meanwhile the shaft center centering device 3 arranged at the front end of the working push rod 2 can prevent the end face of a shaft neck from being worn when the coupler 8 is disassembled. After the connecting bracket 1 is tightly connected with the coupling 8, the rotary transmission push rod I21 and the transmission push rod II 22 both wear on the end face of the journal of the half coupling 8, the coupling 8 moves reversely under the action of the reaction force, and finally the coupling is separated from the shaft face. In order to prevent the reverse force from being generated by the reversing inner sleeve push rod 23 to the transmission push rod I21 when the transmission push rod II 22 is rotated, the thread rotation directions of the transmission push rod I21 and the transmission push rod II 22 are designed to be opposite directions. The assembly of the working push rod 2 and the connecting bracket 1 with the structure can be suitable for the disassembly of the heavy-load rotary mechanical coupler 8 with a wider range, and meanwhile, the transmission push rod I21 and the transmission push rod II 22 adopt an inner push rod nesting mechanism and an outer push rod nesting mechanism to greatly prolong the axial working length, so that the working push rod can be used in a shorter space distance.
The coupler 8 dismounting device is suitable for on-site dismounting of the coupler 8 with the distance between the two coupler halves 8 being more than 200mm, is practical and portable, is simple to operate, and is suitable for on-site short-distance limited space operation requirements; the design of the axle center centering device 3 and the driving push rod I21 are all screwed into the central transmission hole 12 of the connecting bracket 1, the driving push rod I21 is embedded into the inner annular surface of the coupler 8 to keep horizontal positioning, and the occurrence of faults such as deformation and the like of the coupler 8 caused by uneven stress can be reduced. Taking a power plant high-pressure water supply pump as an example, when an existing dismantling device such as a three-jaw umbrella rib puller is used for dismantling tools, the motor or the pump body is required to be shifted and reinstalled in place, and the center adjustment and pipeline instrument and other accessory dismantling procedures are required. When the dismounting device is used for dismounting the coupling 8, the overhaul process can be simplified, the workload of operators is reduced, the overhaul time is greatly shortened, the hot standby state of the equipment is recovered and maintained in time, and the operation safety guarantee coefficient of the unit is improved.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified in various ways, or of being applied to other applications without modification, without departing from the scope of the invention.
Claims (8)
1. The utility model provides a shaft coupling dismounting device which characterized in that: the novel automatic transmission device comprises a connecting bracket (1), a working push rod (2) and an axle center centering device (3), wherein the working push rod (2) is connected with the axle center centering device (3), the working push rod (2) is of an inner and outer mosaic structure, the working push rod (2) comprises a transmission push rod I (21), a transmission push rod II (22) and a reversing inner sleeve push rod (23), the reversing inner sleeve push rod (23) is sleeved on the transmission push rod II (22), the transmission push rod I (21) is sleeved on the reversing inner sleeve push rod (23), the push rod I (21) is connected with a central transmission hole (12), and the reversing inner sleeve push rod (23) is connected with the axle center centering device (3); the connecting bracket (1) comprises a central transmission hole (12) for providing a working channel for the working push rod (2), external threads are arranged on the transmission push rod I (21) and the transmission push rod II (22), the rotation direction of the external threads on the transmission push rod I (21) is opposite to that of the external threads on the transmission push rod II (22), an internal thread matched with the external threads on the transmission push rod I (21) is arranged on the central transmission hole (12), and an internal thread matched with the external threads on the transmission push rod II (22) is arranged on a mounting hole II (231) of the reversing inner sleeve push rod (23); the novel transmission device is characterized in that a positioning hole I (212) and a mounting hole I (211) are further formed in the transmission push rod I (21), an outer ring of the reversing inner sleeve push rod (23) is provided with a strip-shaped groove (234) along the axial direction, and the reversing inner sleeve push rod (23) penetrates through the positioning hole I (212) through a pin shaft I (4) and is connected to the transmission push rod I (21) in a sliding mode.
2. A coupling removal apparatus as defined in claim 1, wherein: the connecting support (1) further comprises a connecting plate (10) arranged along the circumferential direction of the outer wall of the central transmission hole (12), a strip-shaped connecting groove (11) used for being connected with the coupler (8) is formed in the connecting plate (10), and a reinforcing rib plate (13) is arranged at the joint of the connecting plate (10) and the outer wall of the central transmission hole (12).
3. A coupling removal device as claimed in claim 1 or 2, wherein: the axial center centering device is characterized in that a groove (31) and a positioning hole III (32) are formed in one end, connected with the working push rod (2), of the axial center centering device (3), the positioning hole III (32) is perpendicular to the side wall of the groove (31), a centering protrusion (33) is arranged on the end face, in contact with the shaft (9), of the axial center centering device (3), and the centering protrusion (33) is matched with a machining center hole of the shaft (9).
4. A coupling removal apparatus as claimed in claim 3, wherein: one end of the reversing inner sleeve push rod (23) connected with the axle center centering device (3) is provided with a protrusion (232) matched with the groove (31), and the protrusion (232) is provided with a positioning hole II (233).
5. A coupling (8) dismounting device as claimed in claim 4, characterized in that: the protrusion (232) of the reversing inner sleeve push rod (23) is inserted into the groove (31) of the shaft center centering device (3), the positioning hole II (233) is in butt joint communication with the positioning hole III (32), and the pin shaft II (5) penetrates through the positioning hole III (32) and is inserted into the positioning hole II (233).
6. A coupling removal apparatus as defined in claim 4, wherein: the novel transmission device is characterized in that a thrust bearing I (6) is arranged in the mounting hole I (211), the thrust bearing I (6) is sleeved on the transmission push rod I (21), one end of the thrust bearing I (6) is in close contact with the transmission push rod I (21), and the other end of the thrust bearing I (6) is in close contact with the end face of the shoulder (221) on the transmission push rod II (22).
7. A coupling removal apparatus as defined in claim 5, wherein: a thrust bearing II (7) is arranged between the transmission push rod I (21) and the axle center centering device (3), the thrust bearing II (7) is sleeved on the outer wall of the groove (31), one end of the thrust bearing II (7) is in close contact with the transmission push rod I (21), and the other end of the thrust bearing II (7) is in close contact with the axle center centering device (3).
8. A method of using a coupling removal device as claimed in any one of claims 1 to 7, wherein: the method comprises the following steps:
step 1: firstly, detaching bolts for connecting a pair of couplings (8), and matching a centering protrusion (33) on an axle center centering device (3) with a machining center hole of an upper shaft (9) arranged on the couplings (8); then, connecting the connecting bracket (1) of the dismounting device with a coupler (8) to be dismounted, and adjusting bolts on the connecting grooves (11) to enable the end face of the connecting bracket (1) to be tightly connected with the end face of the coupler (8);
step 2: the transmission push rod I (21) is rotated, the transmission push rod I (21) moves towards the inside of the central transmission hole (12), when the transmission push rod I (21) moves towards a position close to the coupler (8), the shaft center centering device (3) arranged at the forefront end of the transmission push rod I (21) pushes the end face of the shaft neck tightly, the shaft (9) arranged on the coupler (8) applies a reverse acting force to the connecting bracket (1), so that the connecting bracket (1) moves towards a direction away from the shaft (9), and the connecting bracket (1) is fixedly connected with the coupler (8), so that the coupler (8) is driven to translate outwards;
step 3: the transmission push rod I (21) is completely screwed into the central transmission hole (12) of the connecting bracket 1, and if the coupler (8) is not completely separated from the shaft, the transmission push rod I (21) is embedded into the inner annular surface of the coupler (8) to keep the horizontal positioning function, and the transmission push rod II (22) is operated;
step 4: the transmission push rod II (22) is rotated, the reversing inner sleeve push rod (23) is pushed to slide on the transmission push rod I (21), the stress of the reversing inner sleeve push rod (23) is transmitted to the axle center centering device (3) to continuously act on the end face of the axle journal arranged on the coupler (8), and the coupler (8) continuously translates in the direction away from the axle (9) until the coupler (8) is detached from the axle (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810378233.3A CN108527246B (en) | 2018-04-25 | 2018-04-25 | Coupler dismounting device and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810378233.3A CN108527246B (en) | 2018-04-25 | 2018-04-25 | Coupler dismounting device and application method thereof |
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| CN108527246A CN108527246A (en) | 2018-09-14 |
| CN108527246B true CN108527246B (en) | 2023-05-05 |
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| CN111702710A (en) * | 2020-06-29 | 2020-09-25 | 马鞍山钢铁股份有限公司 | Method for quickly dismantling expander of turbine |
| CN111890296B (en) * | 2020-08-12 | 2021-12-10 | 三联泵业股份有限公司 | Dismounting device of shaft coupling on pump shaft |
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| US5979215A (en) * | 1998-10-14 | 1999-11-09 | Framatome Connectors Usa Inc. | Hydraulic tool with rapid ram advance |
| US6389668B1 (en) * | 2000-09-19 | 2002-05-21 | Cherng-Bin Hwang | Tool kit for mounting/detaching an iron sleeve to/from a chassis |
| CN103893928A (en) * | 2014-03-11 | 2014-07-02 | 国家电网公司 | Portable anti-dropping device used for aloft work |
| CN105729385B (en) * | 2016-04-15 | 2017-10-03 | 南京高精船用设备有限公司 | The field stripping device of super large-scale stern tube bearing and its application |
| CN105840680B (en) * | 2016-05-11 | 2018-09-25 | 中车青岛四方机车车辆股份有限公司 | A kind of taper interference fit component dismounting protective device and shaft coupling |
| CN205904948U (en) * | 2016-07-26 | 2017-01-25 | 宝钢集团新疆八一钢铁有限公司 | Centrifugal fan shaft coupling dismounting device |
| CN206382835U (en) * | 2017-01-18 | 2017-08-08 | 上海新松机器人自动化有限公司 | Two-stage guider |
| CN206795730U (en) * | 2017-03-27 | 2017-12-26 | 长安大学 | A kind of fluorescent tube handling mechanical device |
| CN206795726U (en) * | 2017-05-26 | 2017-12-26 | 中核（天津）机械有限公司 | A kind of disassembling positioning pin device |
| CN208276822U (en) * | 2018-04-25 | 2018-12-25 | 马鞍山钢铁股份有限公司 | A kind of detaching device for coupling |
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