Prestressed rolling mill stand

Abstract

The application discloses a prestressed rolling mill rack and relates to the rolling mill field.The prestressed rolling mill rack comprises a rack body, the rack body is fixedly connected to a fixed plate, a supporting mechanism is arranged on one side of the rack body, the supporting mechanism comprises a buffer rod, a supporting rod and a connecting block, the bottom of the buffer rod is fixedly connected to a supporting plate, the supporting plate is fixedly connected to two rack bodies, and the top of the buffer rod is provided with a supporting plate two.The connecting block connects the supporting rod and the rack body, the buffer rod and the supporting rod can enhance the supporting strength of the bottom of the supporting plate two, reduce the damage of the supporting plate two, the auxiliary mechanism and the positioning block can increase the contact area with the stand, reduce the shaking of the stand during installation and use and the deviation of the prestressed stud after the prestress is applied, the guide block and the gear one can drive the rotation adjustment of the fixed plate on the top of the supporting base, change the use direction of the rack body and guarantee the use stability of the rack body after the fixed plate is turned.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rolling mill, in particular to a prestressed rolling mill rack. BACKGROUND

[0002] The prestressed rolling mill is a kind of rolling mill, which is a rolling mill that is prestressed to make the rolling mill in a stressed state before rolling. During rolling, the rolling mill working stand and its parts will be elastically deformed under the action of rolling force.

[0003] In the prior art, such as Chinese patent No. CN204657104U, "a prestressed rolling mill rack", which comprises an upper rack plate, a lower rack plate and a column, the column is vertically installed between the upper rack plate and the lower rack plate and is fastened by a fastening mechanism, the upper rack plate and the lower rack plate are provided with locking mechanisms.

[0004] However, in the prior art, the locking mechanism effectively avoids the loosening of the prestressed prestressed stud and the column, improves the stability and reliability of the rolling mill rack, and lacks support structure on the cross beam. When prestress is applied to the rolling mill, the cross beam is easy to bend due to elastic deformation, which affects the subsequent use. The locking effect of the prestressed prestressed stud by screws is not ideal, and the prestressed prestressed stud may be deformed inside the column after being stressed, which affects the application effect of the prestress. SUMMARY

[0005] The present application aims to provide a prestressed rolling mill rack to solve the problem of the prior art that the cross beam is easy to bend due to elastic deformation when prestress is applied to the rolling mill, which affects the subsequent use, and the locking effect of the prestressed prestressed stud by screws is not ideal, and the prestressed prestressed stud may be deformed inside the column after being stressed, which affects the application effect of the prestress.

[0006] To achieve the above object, the present application provides the following technical scheme: a prestressed rolling mill rack, comprising a rack body, a supporting mechanism is arranged on one side of the rack body, the supporting mechanism comprises a buffer rod, a supporting rod and a connecting block, the bottom of the buffer rod is fixedly connected with a supporting plate, the supporting plate is fixedly connected with two rack bodies, a supporting plate two is installed on the top of the buffer rod, the bottom of the supporting plate two is provided with a supporting rod, and one end of the supporting rod is installed on the bottom of the supporting plate one; two auxiliary mechanisms are installed on the top of the fixed plate, the auxiliary mechanism comprises a fixed block, a stand and an auxiliary frame, the fixed block is overlapped on the top of the stand, a limiting component is arranged on the bottom of the stand, the limiting component comprises a positioning block and a limiting pin, the auxiliary frame is clamped on the side wall of the stand, the stand and the auxiliary frame are slidably connected, the auxiliary frame and the rack body are fixedly connected, the positioning pin is installed between the auxiliary frame and the stand, the positioning pin penetrates through the side wall of the stand, and the bottom of the fixed plate is provided with a supporting base, the extending plates are fixedly connected on both sides of the supporting base, and the limiting blocks are arranged on the top of the extending plates.

[0007] Preferably, the supporting plate two is fixedly connected between the two rack bodies, a sleeve shaft is arranged below the supporting plate two, the sleeve shaft is sleeved on the rack body, the rack body is fixedly connected with a connecting block on one side, and one end of the supporting rod is installed on the connecting block.

[0008] Preferably, the top of the fixed block is penetrated by a sleeve rod, the sleeve rod is fixedly connected on the top of the prestressed stud, the fixed block and the rack body are connected through bolts, the stand penetrates through the rack body, the stand is clamped in the positioning block, and the limiting pin is installed on the side wall of the positioning block in a threaded mode.

[0009] Preferably, the positioning block and the stand are slidably connected, the built-in pipe two is embedded in the stand, the spring is fixedly connected on the top of the built-in pipe two, and the prestressed stud is sleeved in the spring.

[0010] Preferably, one end of the spring is connected with the built-in pipe one, the prestressed stud is sleeved in the built-in pipe one, and the built-in pipe one and the stand are slidably connected.

[0011] Preferably, the bottom of the fixed plate is fixedly connected with a guide block, the guide block is clamped in a guide groove, the guide block and the guide groove are slidably connected, and the guide groove is arranged on the supporting base.

[0012] Preferably, the connecting strip is fixedly connected on one side of the guide block, one end of the connecting strip is fixedly connected with a connecting shaft, the gear two is sleeved on the outside of the connecting shaft, the gear two is sleeved in the supporting base, and the gear two and the supporting base are rotatably connected.

[0013] Preferably, the gear two is in meshing connection with the gear one, the gear one is sleeved in the support base, and the bottom of the gear one is connected with the output shaft of the servo motor, and the servo motor is fixedly connected at the bottom of the support base.

[0014] Preferably, the extension plate is embedded with a hydraulic cylinder at the bottom, a limit block is installed at the top of the hydraulic cylinder through a shaft coupling, and the limit block penetrates through the extension plate.

[0015] Preferably, the fixed plate is lapped at the top of the support base, the fixed plate is in rotary connection with the support base, and the top of the fixed plate is fixedly connected with the positioning block.

[0016] Compared with the prior art, the pre-stressed rolling mill rack has the following beneficial effects:

[0017] 1. In the pre-stressed rolling mill rack, the connecting block connects the support rod and the rack body, the buffer rod and the support rod can enhance the support strength of the bottom of the second support plate, reduce the damage and bending of the second support plate, and ensure the connection effect of the second support plate and the first support plate on the rack body.

[0018] 2. In the pre-stressed rolling mill rack, the auxiliary mechanism and the positioning block can increase the contact area with the stand, reduce the shaking of the stand during installation and use, and the built-in pipe one and the built-in pipe two guide the pre-stressed stud, and reduce the deviation of the pre-stressed stud after applying the pre-stress.

[0019] 3. In the pre-stressed rolling mill rack, the guide block and the gear one can drive the rotary adjustment of the fixed plate at the top of the support base, the edge of the fixed plate is limited by the lifting limit block, and the use stability of the rack body after the turning of the fixed plate is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a rack body structure diagram of the pre-stressed rolling mill rack.

[0021] Figure 2 It is a first support plate structure diagram of the pre-stressed rolling mill rack.

[0022] Figure 3 It is a stand structure diagram of the pre-stressed rolling mill rack.

[0023] Figure 4 It is an installation diagram of the built-in pipe one structure of the pre-stressed rolling mill rack.

[0024] Figure 5 It is a limit block structure top view diagram of the pre-stressed rolling mill rack.

[0025] Figure 6 It is a gear two structure installation diagram of the pre-stressed rolling mill rack.

[0026] Figure 7 It is a hydraulic cylinder structure installation schematic diagram of a prestressed rolling mill rack of the application.

[0027] In the figure: 1, support mechanism; 11, buffer rod; 12, support plate one; 13, support rod; 14, connecting block; 15, support plate two; 2, rack body; 3, sleeve shaft; 4, fixed plate; 5, extension plate; 51, limit block; 6, hydraulic cylinder; 7, support base; 71, guide groove; 72, guide block; 73, gear one; 74, servo motor; 75, gear two; 751, connecting shaft; 76, connecting strip; 8, limiting assembly; 81, positioning block; 82, limit pin; 9, auxiliary mechanism; 91, fixed block; 92, upright column; 921, positioning pin; 922, spring; 923, built-in pipe one; 924, built-in pipe two; 93, auxiliary frame; 94, sleeve rod; 941, prestressed stud. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application. Embodiment one

[0029] Referring to Figures 1-7 The prestressed rolling mill rack includes a rack body 2, the rack body 2 is fixedly connected to a fixed plate 4, one side of the rack body 2 is provided with a support mechanism 1, the support mechanism 1 includes a buffer rod 11, a support rod 13 and a connecting block 14, the bottom of the buffer rod 11 is fixedly connected to a support plate one 12, the support plate one 12 is fixedly connected to two rack bodies 2, the top of the buffer rod 11 is provided with a support plate two 15, the bottom of the support plate two 15 is provided with the support rod 13, one end of the support rod 13 is installed at the bottom of the support plate one 12, and the bottom of the fixed plate 4 is provided with a support base 7, both sides of the support base 7 are fixedly connected to an extension plate 5, and the top of the extension plate 5 is provided with a limit block 51.

[0030] In this embodiment, the buffer rod 11 is telescopic through the interaction between the inner rod and the outer rod, which can buffer between the support plate one 12 and the support plate two 15, reduce the stress intensity of the support plate two 15, and further reduce the damage of the support plate two 15 due to elastic deformation, avoid the deformation of the support plate two 15 after deformation, and avoid the contact between the support plate two 15 and the lower compression roller, which can cause motion interference. The upper and lower ends of the support rod 13 are connected with the support plate one 12 and the connecting block 14 through the rotating shafts, respectively. When the support plate one 12 moves under stress, the stress direction of the support rod 13 can be adjusted, so that the inner rod of the support rod 13 moves inside the outer rod. The support rod 13 can provide secondary buffering for the bottom of the support plate one 12, reduce the bending of the support plate one 12 after stress, and ensure the normal use of the rack body 2 while ensuring the application of prestress. Embodiment two

[0031] Figure 3 And Figure 4 As shown in the figure, the top of the fixed plate 4 is provided with two auxiliary mechanisms 9, the auxiliary mechanism 9 includes a fixed block 91, a stand 92 and an auxiliary frame 93, the fixed block 91 is overlapped on the top of the stand 92, the bottom of the stand 92 is provided with a limiting assembly 8, the limiting assembly 8 includes a positioning block 81 and a limiting pin 82, the stand 92 is clamped with the auxiliary frame 93 on the side wall, the stand 92 and the auxiliary frame 93 are slidingly connected, the auxiliary frame 93 and the rack body 2 are fixedly connected, the auxiliary frame 93 and the stand 92 are provided with a positioning pin 921, the positioning pin 921 penetrates the side wall of the stand 92, the top of the fixed block 91 is penetrated by a sleeve rod 94, the sleeve rod 94 is fixedly connected on the top of a prestressed screw 941, the fixed block 91 and the rack body 2 are connected by bolts, the stand 92 penetrates the rack body 2, and the bottom of the stand 92 is clamped in the positioning block 81, the limiting pin 82 is installed on the side wall of the positioning block 81 by threads; the positioning block 81 and the stand 92 are slidingly connected, the stand 92 is embedded with an inner tube two 924, the inner tube two 924 is fixedly connected with a spring 922 on the top, and the spring 922 is sleeved with a prestressed screw 941 inside; one end of the spring 922 is connected with an inner tube one 923, the inner tube one 923 is sleeved with a prestressed screw 941 inside, and the inner tube one 923 and the stand 92 are slidingly connected.

[0032] In this embodiment, the prestressed stud 941 is pressed by the external hydraulic equipment, and after the prestressed stud 941 is prestressed, the built-in pipe one 923 tends to be driven downward, the spring 922 is installed between the built-in pipe one 923 and the built-in pipe two 924, and the spring 922 is sleeved outside the prestressed stud 941, when the built-in pipe one 923 slides inside the column 92 to adjust, the top of the spring 922 is compressed downward, at this time, the spring 922 can buffer the bottom of the built-in pipe one 923, and the built-in pipe two 924 is fixedly connected in the column 92, which can support the bottom of the spring 922 and the bottom of the prestressed stud 941, the built-in pipe two 924 limits the downward movement range of the column 941, slows down the bending deformation of the prestressed stud 941 after being stressed, and the built-in pipe one 923 and the built-in pipe two 924 are sleeved with the prestressed stud 941, which can avoid the shift of the axis of the prestressed stud 941 inside the column 92 after being bent, and ensure the use effect of the prestressed stud 941. Embodiment three

[0033] According to Figures 5-7 As shown in the figure, the bottom of the fixed plate 4 is fixedly connected with the guide block 72, the guide block 72 is clamped in the guide groove 71, the guide block 72 and the guide groove 71 are slidingly connected, and the guide groove 71 is arranged on the support base 7; the guide block 72 is fixedly connected with the connecting strip 76 on one side, one end of the connecting strip 76 is fixedly connected with the connecting shaft 751, the connecting shaft 751 is sleeved with the gear two 75 outside, the gear two 75 is sleeved in the support base 7, and the gear two 75 and the support base 7 are rotatably connected; the gear two 75 and the gear one 73 are meshingly connected, the gear one 73 is sleeved in the support base 7, the bottom of the gear one 73 is connected with the output shaft of the servo motor 74, and the servo motor 74 is fixedly connected at the bottom of the support base 7; the bottom of the extension plate 5 is embedded with the hydraulic cylinder 6, the top of the hydraulic cylinder 6 is installed with the limiting block 51 through the shaft coupling, and the limiting block 51 penetrates through the extension plate 5; the fixed plate 4 is overlapped on the top of the support base 7, the fixed plate 4 and the support base 7 are rotatably connected, and the top of the fixed plate 4 is fixedly connected with the positioning block 81.

[0034] In this embodiment, the top of the guide block 72 is fixedly connected with the bottom of the fixed plate 4 after penetrating through the top side wall of the support base 7, so that the connecting shaft 751 is connected with the fixed plate 4, and the arc-shaped guide groove 71 limits the movement range of the guide block 72; when the guide block 72 moves in the guide groove 71, the fixed plate 4 can be adjusted in rotation on the top of the support base 8; the two ends of the connecting strip 76 are connected with the guide block 72 and the connecting shaft 751 respectively, so that the connecting shaft 751 and the guide block 72 are reinforced; meanwhile, the connecting strip 76 can be adjusted in rotation in the inner cavity of the support base 7; the connecting shaft 751 rotates synchronously with the gear two 75; the gear one 73 can be driven to rotate by the servo motor 74; the meshing of the gear one 73 and the gear two 75 can achieve the rotation of the connecting shaft 751, so as to change the position of the fixed plate 4 on the top of the support base 7; the bottom of the limiting block 51 penetrates through the top side wall of the extension plate 5; before the fixed plate 4 is turned, the bottom of the limiting block 51 is clamped in the extension plate 5, and the height of the top of the limiting block 51 is lower than that of the fixed plate 4; at this time, the fixed plate 4 can slide above the limiting rod on the top of the limiting block 51 when rotating; the limiting block 51 and the limiting rod do not block the movement of the fixed plate 4; after the turning of the fixed plate 4 is completed, the limiting block 51 is driven to move upward by the hydraulic cylinder 6; at this time, the height of the top of the limiting rod on the limiting block 51 is higher than that of the fixed plate 4; the edge corner of the fixed plate 4 is clamped between the two limiting rods on the top of the limiting block 51, so as to clamp the side wall of the fixed plate 4.

[0035] The working principle and use method of the device are as follows: first, the buffer rod 11 and the support rod 13 are both telescopic structures of inner rods and outer rods, and a spiral spring is arranged between the inner rod and the outer rod; when the pre-stress is applied by the sleeve rod 94 and the pre-stressed stud 941, the buffer rod 11 and the support plate one 12 support the bottom of the support plate two 15, and the support rod 13 can disperse the force on the bottom of the support plate two 15; the spring 922 can buffer between the built-in tube one 923 and the built-in tube two 924, so as to reduce the influence of elastic deformation on the pre-stressed stud 941; the bottom of the fixed plate 4 is fixedly connected with a rubber block, the rubber block is overlapped on the top of the support base 7, the rubber block supports the bottom of the fixed plate 4, reduces the suspended area of the bottom of the fixed plate 4, reduces the damage caused by the elastic deformation of the bottom of the fixed plate 4 under stress, and achieves the buffering effect on the bottom of the fixed plate 4 and the top of the support base 7; when the stand column 92 is installed in the rack body 2, the bottom of the stand column 92 is inserted into the auxiliary frame 93 after penetrating through the side wall of the rack body 2, the stand column 92 continues to move downward, the side wall of the stand column 92 is clamped with the positioning block 81, the bottom of the stand column 92 slides in the positioning block 81, until the lower end of the stand column 92 is overlapped with the bottom of the inner cavity of the positioning block 81, the limiting pin 82 is installed on the side wall of the positioning block 81, and the positioning pin 921 is installed on the side wall of the auxiliary frame 93, so as to fix the stand column 92; the fixed block 1 is overlapped on the rack body 2 after penetrating through the sleeve rod 94, and then the rack body 2 and the fixed block 1 are connected by bolts, so as to complete the installation of the stand column 92.

[0036] The auxiliary frame 93 and the positioning block 81 can guide and support the outside of the column 92, and the auxiliary frame 93 and the positioning block 81 increase the contact area of the top of the fixing plate 4 and the column 92, avoid the loosening and displacement of the column 92 during the installation and use of the top of the fixing plate 4, ensure the stability of the connection between the entire rack body 2 and the column 92, and avoid the subsequent shaking of the column 92.

[0037] When the use direction of the rack body 2 needs to be adjusted, the external controller is used to control the servo motor 74 to work, the servo motor 74 drives the gear one 73 to rotate, the gear one 73 drives the gear two 75 and the connecting shaft 751 to rotate, the connecting strip 76 is used to drive the two guide blocks 72 to slide in the arc-shaped guide groove 71, the rotation adjustment of the fixing plate 4 on the top of the support base 7 is realized, when one end of the fixing plate 4 moves above the extension plate 5, the hydraulic cylinder 6 pushes the limiting block 51 to move upwards, the two limiting rods on the limiting block 51 are used to limit the edges of the fixing plate 4, the direction adjustment of the fixing plate 4 and the rack body 2 is realized, bearings are installed in the sleeve shaft 3, a compression roller can be installed between the two sleeve shafts 3, the sleeve shaft 3 is distributed in a triangular shape on the rack body 2, a steel plate that needs to be reinforced can be placed between the upper and lower compression rollers, with the rotation of the compression roller, the rolling of the steel plate is realized, when the rack body 2 rotates, the feeding direction of the steel plate can be adjusted, the trouble of using hoisting equipment to hoist the rack body 2 to adjust the use direction gradually is avoided.

[0038] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pre-stressed rolling mill stand comprising a stand body (2) which is fixed to a fixed plate (4), characterized in that: The rack body (2) is provided with a support mechanism (1) on one side, the support mechanism (1) comprises a buffer rod (11), a support rod (13) and a connecting block (14), the bottom of the buffer rod (11) is fixedly connected with a support plate (12), the support plate (12) is fixedly connected with two rack bodies (2), the top of the buffer rod (11) is provided with a support plate (15), the bottom of the support plate (15) is provided with a support rod (13), one end of the support rod (13) is installed on the bottom of the support plate (12); the top of the fixed plate (4) is provided with two auxiliary mechanisms (9), the auxiliary mechanism (9) comprises a fixed block (91), a stand (92) and an auxiliary frame (93), the fixed block (91) is overlapped on the top of the stand (92), the bottom of the stand (92) is provided with a limiting assembly (8), the limiting assembly (8) comprises a positioning block (81) and a limiting pin (82), the side wall of the stand (92) is clamped with the auxiliary frame (93), the stand (92) and the auxiliary frame (93) are slidably connected, the auxiliary frame (93) and the rack body (2) are fixedly connected, the stand (92) and the auxiliary frame (93) are provided with a positioning pin (921), the positioning pin (921) penetrates the side wall of the stand (92), and the bottom of the fixed plate (4) is provided with a support base (7), the two sides of the support base (7) are fixedly connected with an extension plate (5), and the top of the extension plate (5) is provided with a limiting block (51); the top of the fixed block (91) is penetrated by a sleeve rod (94), the sleeve rod (94) is fixedly connected with the top of a prestressed stud (941), the fixed block (91) and the rack body (2) are connected through bolts, the stand (92) penetrates the rack body (2), and the bottom of the stand (92) is clamped in the positioning block (81), the limiting pin (82) is installed on the side wall of the positioning block (81) through threads; the positioning block (81) and the stand (92) are slidably connected, the stand (92) is embedded with an inner pipe (924), the top of the inner pipe (924) is fixedly connected with a spring (922), and the spring (922) is sleeved with a prestressed stud (941); one end of the spring (922) is connected with an inner pipe (923), the inner pipe (923) is sleeved with a prestressed stud (941), and the inner pipe (923) and the stand (92) are slidably connected; the bottom of the fixed plate (4) is fixedly connected with a guide block (72), the guide block (72) is clamped in a guide groove (71), and the guide block (72) and the guide groove (71) are slidably connected; the guide groove (71) is formed in the support base (7).

2. A pre-stressed rolling mill housing according to claim 1, characterized in that: The support plate (15) is fixedly connected between the two rack bodies (2), the support plate (15) is provided with a sleeve shaft (3) below, the sleeve shaft (3) is sleeved on the rack body (2), one side of the rack body (2) is fixedly connected with a connecting block (14), and one end of the support rod (13) is installed on the connecting block (14).

3. A pre-stressed rolling mill housing according to claim 1, characterized in that: The guide block (72) is fixed with a connecting strip (76) on one side, one end of the connecting strip (76) is fixedly connected with a connecting shaft (751), the outer part of the connecting shaft (751) is sleeved with a gear two (75), the gear two (75) is sleeved in the supporting base (7), and the gear two (75) is rotatably connected with the supporting base (7).

4. A pre-stressed rolling mill housing according to claim 3, characterized in that: The gear two (75) is rotatably connected with the gear one (73), the gear one (73) is sleeved in the supporting base (7), the bottom of the gear one (73) is connected with the output shaft of the servo motor (74), and the servo motor (74) is fixedly connected to the bottom of the supporting base (7).

5. A pre-stressed rolling mill housing according to claim 1, characterized in that: The bottom of the extension plate (5) is embedded with a hydraulic cylinder (6), the top of the hydraulic cylinder (6) is mounted with a limiting block (51) through a shaft coupling, and the limiting block (51) penetrates the extension plate (5).

6. A pre-stressed rolling mill housing according to claim 1, characterized in that: The fixed plate (4) is overlapped on the top of the supporting base (7), the fixed plate (4) is rotatably connected with the supporting base (7), and the top of the fixed plate (4) is fixedly connected with the positioning block (81).

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