Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
  • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts

Definitions

• the invention relates to a rolling mill auxiliary device, in particular to a multi-roll rolling mill roll changing device. Background technique
• Rolling mills are mechanical equipment commonly used in the industrial field, and the drive rollers of the rolling mills need to be replaced after a period of use.
• the traditional drive roller replacement is generally carried out manually and by using a simple support frame to support and fix the mating parts to which the drive roller is mated, and then the original roller is removed and replaced with a new roller. This traditional drive roller replacement is very efficient. low.
• the inner hole of the traditional easy support frame used is flat, and the end of the transmission roller is also flat. Because the position of the mating part that the transmission roller is mated with during the docking is changed, the docking difficulty is increased. Moreover, the labor intensity is large, and the roll changing efficiency is low. Summary of the invention
• the object of the present invention is to provide a multi-roller mill roll changing device, which can realize mechanized operation, high efficiency, convenient operation and low labor intensity.
• the present invention provides a multi-roller mill roll changing device, including: a frame; a connecting shaft seat arranged in the frame; the connecting shaft seat is arranged in two levels; and A connection shaft rotatably supported by a connection shaft seat, and each of the connection shafts is provided with a sleeve at one end thereof; the frame supports the connection shaft seats through a supporting device so that the connection shaft seats are connected accordingly
• the shaft can move in a vertical direction relative to the frame and / or in a horizontal direction in the radial direction of the connecting shaft.
• the supporting device is a floating supporting device.
• the floating support device includes a vertical floating support device for floatingly supporting the connection shaft seats in a vertical direction and a horizontal level for floatingly supporting the connection shaft seats in a horizontal direction in a radial direction of the connection shaft. Floating support device.
• the vertical floating support device includes an upper-layer connection shaft seat vertical floating support device for floatingly supporting the upper-layer connection shaft seat in a vertical direction, and the upper-layer connection shaft seat vertical floating support device is a tie rod-elastic member mechanism.
• the vertical floating support device includes a lower-layer connecting shaft seat vertical floating support device, It is used for floatingly supporting the lower-layer connection shaft seat in the vertical direction, and the lower-layer connection shaft seat vertical floating support device is a pressure pestle-elastic member mechanism.
• the horizontal floating support device of the connecting shaft seat includes a pin and an elastic member mechanism.
• the pin-elastic member mechanism includes a pin and an elastic member, and the elastic member is provided on the pin and a structural component fixed to the frame side wall or integrated with the frame side wall In between, one end of the pin supports a corresponding connection shaft seat.
• the horizontal floating support device of the connecting shaft seat includes a pressing rod-elastic member mechanism
• the pressing rod-elastic member mechanism includes a pressing pestle
• one end of the pressing rod is fixed to the corresponding connecting shaft seat
• the The other end of the pressing rod extends through the side wall of the rack.
• the pressing rod can move in a vertical direction and a horizontal direction relative to the side wall of the rack.
• An elastic member is disposed on the pressing rod and fixed on the side of the rack. Between walls or structural parts integrated with the side wall of the rack.
• each layer of the connecting shaft seat includes two connecting shaft seats.
• the horizontal floating support device further includes a horizontal floating support device for applying a bias to the connecting shaft seat on the same layer in a direction away from each other.
• the horizontal floating support device for applying a bias to the connecting shaft seat of the same layer in a direction away from each other includes a positioning column and an elastic member mechanism, and the positioning column and elastic member mechanism includes a positioning column and an elastic member, Holes are respectively formed on opposite wall surfaces of the same-layer connection shaft seat, the elastic members are disposed in one of the holes, and positioning posts are respectively inserted in the two holes, so that the same-layer connection shaft is connected
• the seats can be moved horizontally relative to each other.
• the horizontal floating support device for applying a bias to the connecting shaft seat of the same layer in a direction away from each other includes a tie rod-elastic member mechanism
• the tie rod-elastic member mechanism includes a tie rod, and one end of the tie rod Fixed to the corresponding connecting shaft seat, and the other end of the draw bar extends through the side wall of the rack, the draw bar can move in a vertical direction and a horizontal direction relative to the side wall of the rack, and an elastic member is provided between the draw bar and It is fixed between the side wall of the rack or structural components integrated with the side wall of the rack.
• the elastic member is a spring.
• connection shaft seat is supported by the frame through a floating support device, the connection shaft seat and thus the connection shaft can be suspended and moved in the vertical direction and / or horizontal direction, so even if the transmission roller and the connection shaft sleeve are misaligned, In addition, the connecting shaft sleeve can also be automatically aligned, thereby achieving rapid roll change and providing work efficiency.
• FIG. 1 is a longitudinal sectional view of a roll changing device of a multi-roll mill according to the present invention
• FIG. 2 is a cross-sectional view taken along the line ⁇ - ⁇ in FIG. 1;
• Fig. 3 is a view similar to Fig. 2 showing another embodiment of the horizontal floating support device. detailed description
• a roll changing device of a multi-roll mill includes a frame 1 in which horizontally extending upper and lower connecting shafts 2 and 3 are provided, and are used for supporting the corresponding Connection shaft seat 4 of the connection shaft.
• a total of four connection shafts 2, 3 are provided, and the four connection shafts are arranged in two layers, and each layer includes two connection shafts arranged side by side.
• the illustrated multi-roll mill roll changing device includes four connecting shaft seats 4 arranged in two layers.
• Reference numeral 37 in the figure indicates a rolling mill gate, and reference numeral 38 indicates a rolling mill driving roller.
• each connecting shaft seat is a quadrangular prism with a rectangular cross section, and an axial penetration 5 is machined on it.
• the corresponding connecting shaft supported by the connecting shaft seat is fitted in the through hole of the connecting shaft seat. And is supported by the connecting shaft seat through the shaft 6.
• an end cover 8 is installed at the outer end of the bearing by screws 7.
• each connecting shaft is provided at its one end with a sleeve 9 for connecting the end of a rolling mill driving roller.
• the sleeve 9 is formed with an inner hole 10, and the shape of the inner hole 10 is the same as that of the rolling mill driving roller.
• the shape of the end is adapted so that the end of the driving roller can be inserted into the sleeve of the connecting shaft.
• the connecting shaft sleeve is chamfered.
• the other end of each connecting shaft is connected to the driving roller driving device through a universal joint and a driving shaft. In this way, in the working state, each connecting shaft rotates under the driving of the driving roller driving device, and the connecting shaft drives the corresponding rolling mill driving rod to rotate.
• each upper-layer connection shaft seat is connected to the top wall of the frame 1 through two tie rod-spring mechanisms 11 as vertical floating support devices.
• the lower end of the tie rod 12 is fixedly installed on the top of the upper-layer connection shaft seat through a threaded connection, and the tie rod passes through the top wall of the frame 1
• the formed hole 13 extends through the top wall of the frame 1, and the tie rod 12 can slide in the hole 13 in a vertical direction relative to the top wall.
• a gear cover 14 is provided near the top of the tie rod.
• a connecting shaft balance spring 15 is sleeved on the tie rod and is located between the gear cover 14 and the outer top wall of the frame 1.
• the upper connecting shaft balance spring is used to balance the weight of the upper connecting shaft and the corresponding connecting shaft seat, so as to form a floating support for the upper connecting shaft and the corresponding connecting shaft seat, so that the upper connecting shaft seat and the corresponding connecting shaft can be moved up and down relative to the frame. float.
• the amount of balance force can be adjusted, for example, by selecting the spring constant of the spring, by adjusting the adjusting nut fitted at the end of the tie rod, and the like.
• each upper connecting shaft seat is hung on the top wall of the frame 1 by means of the pull rod 12 and the balance spring 15, each upper connecting shaft seat is allowed to float up and down the corresponding connecting shaft accordingly.
• the diameter of the hole 13 on the top wall of the frame may be formed slightly larger than the diameter of the tie rod 12; as another alternative, the hole 13 on the top wall of the rack can also be formed as a horizontally elongated hole along the radial direction of the connection axis.
• each lower connecting shaft seat is floatingly supported on the bottom wall of the frame 1 by two two spring-spring mechanisms serving as vertical floating support devices.
• the upper end of the pressing rod 17 is fixedly installed on the bottom of the lower connecting seat 4 through a threaded connection, and the pressing rod extends through the bottom wall of the frame 1 through a hole 18 formed in the bottom wall of the frame 1 and It can slide in the hole 18 in the vertical direction with respect to the bottom wall.
• a baffle plate 19 is provided at the lower end of the pressure rod, near the end thereof.
• a sleeve 20 is fixedly mounted on the bottom wall of the frame 1 by means of screws 21. One end of the sleeve near the bottom wall of the frame 1. It is open and the other end 39 is closed.
• a spring pressing rod 22 is installed on the closed end of the sleeve through a screw hole 22 formed in the bottom wall of the sleeve and fixed with a nut 23.
• the spring pressing rod 22 extends through the bottom wall of the sleeve,
• a baffle plate 24 is arranged near the upper end of the baffle plate, and the baffle plate is located in a counterbore 26 formed in the bottom wall.
• the lower connecting shaft balance spring 25 is installed in the sleeve and is located in the baffle plates. Between 19 and 24, a floating support is formed for the lower connecting shaft seat and the corresponding connecting shaft, so that the lower connecting shaft seat and the corresponding connecting shaft can move up and down in the vertical direction relative to the frame.
• the up and down floating amount of the lower connecting shaft seat can be adjusted.
• the hole 18 and the pressure bar baffle 19 on the bottom wall of the frame The diameter of the hole 26 placed therein is slightly larger than the diameter of the pressure rod 17 and the baffle plate 19;
• the holes 17, 26 on the bottom wall of the rack can also be formed radially along the connecting axis. Horizontal long hole.
• pin-spring mechanism shapes are also provided on the left and right sides of the frame 1.
• the horizontal floating support devices 27 of the connecting shaft seat are each configured to apply a bias to the connecting shaft seat in a direction in which the same level of connection shaft seat abuts on each other.
• a plurality of horizontal floating support devices 27 are provided corresponding to each of the upper and lower connection shaft seats, and in addition, intermediate horizontal floating support devices 28 are provided between the connection shaft seats on the same layer, each intermediate horizontal floating support.
• the device 28 is used for biasing the connection shaft seats in a direction in which the same layer connection shaft seats are separated from each other.
• Each horizontal floating support device 27, 28 floatingly supports the connection shaft seat in the horizontal direction, allowing each connection shaft seat to move in a horizontal direction in the radial direction of the connection shaft with respect to the frame, so that the corresponding connection shaft seat can be adjusted in the frame 1.
• Horizontal position As an example of the outer horizontal floating support device 27, a bolt 29, a spring 30, and a positioning pin 31 can be used.
• the springs 30 are provided in holes 32 formed on the left and right walls of the frame 1, bolts 29 are screwed into the corresponding holes on the outside of the frame 1, and one end of the positioning pin is located in the hole, and its The other end is abutted against the side wall of the corresponding connection shaft seat, so as to form a horizontal elastic support for the connection shaft seat.
• each connection shaft seat is elastically supported in the horizontal direction by a spring, each connection shaft seat can move in the horizontal direction of the connection shaft radial direction relative to the frame 1.
• the intermediate horizontal floating support device 28 in the illustrated embodiment includes a rigid stub 36 and a spring 33. As shown in the figure, holes 34 and 35 are respectively formed on the opposite side walls of the connection 4 of the same layer, the spring 33 is fitted in one of the holes 34 and 35, and the rigid short post 36 is inserted in In the holes 34 and 35, the manner of assembling the rigid short posts 36 in the holes 34 and 35 allows the connecting shaft seats on both sides to move relatively horizontally.
• the rigid stub 36 is also used to position the two connecting shaft seats on the same layer in the vertical direction.
• a spring is used, but the present invention is not limited to this.
• a rubber rod or a rubber sleeve can be used instead of the spring.
• the horizontal floating support device 27 may also adopt the same structure as the pressure lever-spring mechanism (see FIG. 3).
• the diameter of the corresponding pressure bar is slightly smaller than that formed on the side wall of the frame in order to enable the connecting shaft seat to move up and down in the vertical direction.
• the diameter of the hole or the hole on the side wall of the rack is made into an elongated hole in the vertical direction.
• the intermediate horizontal floating support device 28 may be replaced with another structure.
• the above-mentioned rod-spring mechanism 11 may be provided on the side wall of the frame to implement the function of applying a bias to the connecting shaft seats on the same layer in directions away from each other.
• the above-mentioned intermediate horizontal floating support The spring 33 of the device 28 can be omitted.
• the rigid short post 36 may be omitted.
• the drive rollers need to be lifted out of the sleeves of the corresponding connecting shafts.
• the new driving roller is connected to the corresponding connecting shaft by inserting the end of the driving roller into the sleeve of the connecting shaft to complete the roller changing work of the Weiwei driving roller.
• connection shaft seat for supporting the connection shaft is floatingly supported, the connection shaft seat and thus the corresponding connection shaft can move in a straight direction relative to the frame 4 or in a horizontal direction in the radial direction of the connection shaft. Therefore, even if the end of the newly replaced drive roller is not axially aligned with the sleeve of the corresponding connecting shaft, it can be ensured that the newly replaced drive roller is inserted into the sleeve of the corresponding connecting shaft.
• connection 4 seat is a rectangular prism with a rectangular cross-section formed with an axial through hole, but it is obvious that other forms of connection seat can also be used, as long as it can achieve
• the connecting shaft can provide the intended functions such as rotational support.
• the roll changing device includes four connecting shafts provided in two layers and corresponding connecting shaft seats, but the number of connecting shafts in each layer and thus ⁇ appropriately connected shaft seats can be given according to the number of driving rollers.
• the roller changing device includes two connecting shafts arranged on top of each other and corresponding connecting shaft seats.
• the vertical floating support device, the horizontal floating support device, and the intermediate horizontal floating support device are not limited to the structures described above. Any other floating support device can be used, for example, a hydraulic floating support device can be used as long as they can achieve the connection shaft. The expected function of the floating support is sufficient.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Crushing And Grinding (AREA)
• Vibration Prevention Devices (AREA)

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Citations (5)

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• 2004
  • 2004-01-20 CN CNB2004100028709A patent/CN100381219C/zh not_active Expired - Fee Related
  • 2004-12-18 RU RU2006130817/22U patent/RU67475U1/ru not_active IP Right Cessation
  • 2004-12-28 ES ES200650006U patent/ES1065331Y/es not_active Expired - Fee Related
  • 2004-12-28 WO PCT/CN2004/001547 patent/WO2005075120A1/zh active IP Right Grant
  • 2004-12-28 DE DE212004000082U patent/DE212004000082U1/de not_active Expired - Lifetime
  • 2004-12-28 JP JP2007600011U patent/JP3131508U/ja not_active Expired - Fee Related
• 2005
  • 2005-12-07 HK HK05111186A patent/HK1079148A1/xx not_active IP Right Cessation

Patent Citations (5)

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