A kind of steel tube straightener roll gap automatic regulating system

Abstract

A kind of steel tube straightener roll gap automatic regulating system, including rack, be mounted on the rack for driving upper straightening roller to lower straightening roller movement driving mechanism, driving mechanism includes screw rod, screw rod table is lifted by the screw rod driving, screw rod table and for installing the upper roll stand of the upper straightening roller are connected, still include to be connected with the rack and screw rod table after the upper straightening roller is driven with the collaborative stress link member.This utility model makes that the straightening reaction force that steel tube is reacted to the upper straightening roller on in straightening process is transferred to screw rod table, and a part of straightening reaction force is borne by rack, avoids straightening force all acting on the screw thread of screw rod or all by screw thread of screw rod bears, slows down the damage of screw thread of screw rod.

Description

Technical Field

[0001] This utility model relates to an automatic adjustment system for the roller gap of a steel pipe straightening machine, belonging to the field of steel pipe straightening technology. Background Technology

[0002] Among the core components of a steel pipe straightening machine, the screw drive mechanism plays a crucial role. It primarily uses the rotational movement of the screw to precisely drive the nut or screw slider in linear motion, thereby adjusting the position of the upper pressure roller. This changes the distance between the upper and lower pressure rollers, achieving precise adjustment of the roller gap. This adjustment process is extremely critical for adapting to the straightening needs of steel pipes of different specifications and is a vital step in ensuring the straightening effect.

[0003] However, during the straightening process of steel pipes, the reaction force on the upper straightening roller is transmitted to the lead screw table, and then applied entirely to the thread of the lead screw. Since the threaded part bears a large force, it is prone to damage, and the steel pipe straightening machine has a high maintenance frequency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an automatic roller gap adjustment system for a steel pipe straightening machine, which solves the technical problem of high maintenance frequency of steel pipe straightening machines due to easy damage to the screw threads.

[0005] An automatic adjustment system for the roll gap of a steel pipe straightening machine includes a frame and a drive mechanism mounted on the frame for driving an upper straightening roll to move downward. The drive mechanism includes a lead screw and a lead screw platform that is driven to rise and fall by the lead screw. The lead screw platform is connected to an upper roll frame for mounting the upper straightening roll. It also includes a cooperating force-bearing member for connecting with the frame and the lead screw platform after the upper straightening roll is driven.

[0006] Preferably, the frame and the lead screw platform are provided with connecting lugs through which the cooperating force-bearing rod passes, and each connecting lug has a locking nut on both sides to lock the cooperating force-bearing rod onto the corresponding connecting lug; the cooperating force-bearing rod is provided with a thread that mates with the locking nut.

[0007] Preferably, the frame and the lead screw table are connected to the cooperating force-bearing member by fasteners, and the cooperating force-bearing member is provided with an adjustment groove for the fastener to pass through.

[0008] Preferably, the frame includes an upper frame plate and a lower frame plate disposed on the upper and lower sides of the lead screw platform, the upper frame plate and the lower frame plate being respectively used to connect to the two ends of the cooperating force-bearing rod after the upper straightening roller is driven.

[0009] Preferably, the frame further includes vertical rails disposed on both horizontal sides of the lead screw table and used to guide the lead screw table; the upper roller frame is provided with a connecting arm connected to the lead screw table, and the lower frame plate is provided with a guide hole for the connecting arm to pass through.

[0010] Preferably, the lead screw platform is provided with cooperating force-bearing rods on both sides.

[0011] Preferably, the upper roller frame includes two side plates arranged opposite to each other. The side plates are provided with mounting grooves, which have inlet and outlet openings. Both sides of the mounting groove are provided with transverse limiting grooves composed of an upper limiting component and a lower limiting component. A support block that spans the mounting groove and can slide out of the transverse limiting groove is provided in the transverse limiting groove. The support block has a lower bearing limiting groove for supporting the bearing assembled on the upper straightening roller shaft. Vertical limiting component one and vertical limiting component two are respectively provided on both sides of the mounting groove above the upper limiting component. An upper limiting block that can slide out is provided in the vertical limiting groove formed between vertical limiting component one and vertical limiting component two. The upper limiting block has an upper bearing limiting groove for limiting the outer periphery of the bearing.

[0012] Preferably, the side plate is further provided with a positioning block for positioning the support block.

[0013] In summary, this utility model has the following beneficial effects: 1. This utility model, by equipping a cooperating force-bearing rod, is used to connect the upper straightening roller to the frame and the lead screw table after the upper straightening roller is driven into position by the lead screw drive mechanism. This design allows the straightening reaction force acting on the upper straightening roller during the straightening process to be transmitted to the lead screw table, where the frame bears part of the straightening reaction force. This avoids the straightening force being entirely applied to or borne by the lead screw threads, thus reducing damage to the lead screw threads and lowering the maintenance frequency of the steel pipe straightening machine.

[0014] 2: In this utility model, the frame is configured to include an upper frame plate and a lower frame plate, and the upper frame plate and the lower frame plate are arranged on the upper and lower sides of the lead screw table. The upper frame plate and the lower frame plate are respectively used to connect with the two ends of the cooperating force-bearing rod after the upper straightening roller is driven. Thus, when the frame bears the straightening reaction force, the force points are more dispersed and the force is more dispersed. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the first automatic roller gap adjustment system for a steel pipe straightening machine. Figure 2 This is a structural diagram of the automatic roller gap adjustment system for the second type of steel pipe straightening machine; Figure 3 This is a schematic diagram showing the installation of the upper straightening roller on the side plate; Figure 4 for Figure 3 An explosion diagram. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0017] An automatic roller gap adjustment system for a steel pipe straightening machine, such as Figure 1 As shown, its core components include: a frame 1, and a drive mechanism 4 mounted on the frame 1. The drive mechanism 4 drives the upper straightening roller 2 to move towards the lower straightening roller 3. Structurally, it specifically includes a lead screw 41 and a lead screw table 42 that is driven and raised by the lead screw 41. The lead screw 41 is rotatably mounted on the frame 1 and is connected to a servo motor 43 via a reducer 44. The servo motor 43 controls the movement distance of the lead screw table 42 by controlling the rotation angle of the lead screw 41. The lead screw table 42 is connected to the upper straightening roller 2. The upper roller frame 5 is connected. In addition, the system is also equipped with a cooperating force-bearing rod 61, which is used to connect with the frame 1 and the lead screw table 42 after the upper straightening roller 2 is driven into position. This design allows the straightening reaction force that acts on the upper straightening roller during the straightening process to be transmitted to the lead screw table 42, and then the frame 1 bears part of the straightening reaction force. This avoids the straightening force being entirely applied to the threads of the lead screw 41 or entirely borne by the threads, thus reducing the damage to the threads and lowering the maintenance frequency of the steel pipe straightening machine.

[0018] For a specific implementation method of connecting the cooperating force-bearing member 61 to the frame 1 and the lead screw table 42, please refer to [link to implementation method]. Figure 1 As shown, the frame 1 and the lead screw table 42 are provided with connecting ears 62 for the cooperating force-bearing rod 61 to pass through. Furthermore, each connecting ear 62 has a locking nut 63 on both sides that locks the cooperating force-bearing rod 61 onto the corresponding connecting ear 62. Correspondingly, the cooperating force-bearing rod 61 is provided with a thread that cooperates with the locking nut 63.

[0019] Regarding the specific implementation of the connection between the cooperating force-bearing member 61 and the frame 1 and the lead screw table 42, in another implementation, such as Figure 2 As shown, the frame 1 and the lead screw table 42 are connected to the cooperative force-bearing member 61 by fasteners 64. The fasteners 64 can be, but are not limited to, bolts. The frame 1 and the lead screw table 42 are provided with fastening holes that cooperate with the fasteners 64. The cooperative force-bearing member 61 is provided with an adjustment groove 611 through which the fasteners 64 pass.

[0020] See Figure 1 or Figure 2As shown, the frame 1 includes an upper frame plate 11 and a lower frame plate 12 disposed on the upper and lower sides of the lead screw table 42. The upper frame plate 11 and the lower frame plate 12 are respectively used to connect to the two ends of the cooperating force-bearing rod 61 after the upper straightening roller 2 is driven. Thus, when the frame 1 bears the straightening reaction force, the force points are more dispersed and the force it bears is more dispersed.

[0021] The frame 1 also includes vertical rails 13 arranged on both sides of the lead screw table 42. The vertical rails 13 are used to guide the lead screw table 42. The upper roller frame 5 is provided with connecting arms 7 connected to the lead screw table 42, and the lower frame plate 12 is provided with guide holes for the connecting arms 7 to pass through.

[0022] Both sides of the lead screw platform 42 are provided with cooperating force-bearing members 61 (the cooperating force-bearing member 61 on one side of the lead screw platform 42 is blocked by the lead screw platform 42 and therefore cannot be seen in the attached figure). The cooperating force-bearing members 61 in multiple directions can better bear the straightening reaction force, thereby further reducing the damage to the lead screw threads.

[0023] Generally speaking, see Figure 1 or Figure 2 The upper roller frame 5 typically includes two opposing side plates 51 for mounting the upper straightening roller 2. For example... Figure 3-4 As shown, the side plate 51 is provided with a mounting groove 52, which has an inlet / outlet 521. Both sides of the mounting groove 52 are provided with transverse limiting grooves composed of an upper limiting component 53 and a lower limiting component 54. A support block 55 spanning the mounting groove 52 is provided in the transverse limiting groove. The support block 55 is fixed to the side plate 51 by a fastening bolt 550. When the fastening bolt 550 is loosened, the transverse limiting groove allows the support block 55 to slide out of the transverse limiting groove. The support block 55 has a lower bearing limiting groove 551 for supporting the bearing 21 mounted on the upper straightening roller 2 shaft. The mounting groove 52 has two sides... Vertical limiting component 1 56 and vertical limiting component 2 57 are respectively provided above the upper limit component 53. An upper limiting block 58 is provided in the vertical limiting groove formed between the vertical limiting component 1 56 and the vertical limiting component 2 57. The upper limiting block 58 is fixed to the side plate 51 by fastening bolt 2 580. When the fastening bolt 2 580 is loosened, the upper limiting block 58 can slide out of the vertical limiting groove. The upper limiting block 58 has an upper bearing limiting groove 581 for limiting the outer periphery of the bearing. The upper bearing limiting groove 581 and the lower bearing limiting groove 551 together limit the bearing 21 on the upper straightening roller 2 shaft.

[0024] This upper roller holder 5 facilitates quick replacement of the upper straightening roller 2. During replacement, first, loosen the first fastening bolt 550 and the second fastening bolt 580, slide the upper limiting block 58 out of the vertical limiting groove, then lift the upper straightening roller 2 so that the bearing disengages from the lower bearing limiting groove 551, and slide the support block 55 out of the transverse limiting groove. Then, remove the upper straightening roller 2 from the inlet / outlet 521; insert the new upper straightening roller 2 (with its own bearing 21) into the inlet / outlet 521, and then insert the support block 55 into the transverse limiting groove until it reaches the lower bearing. The limiting groove 551 is located below the bearing 21 of the upper straightening roller 2. Then, the upper straightening roller 2 is loosened so that the bearing 21 on it is installed into the lower bearing limiting groove 551. Then, the upper limiting block 58 is installed into the vertical limiting groove formed between the vertical limiting component 1 56 and the vertical limiting component 2 57, so that the upper bearing limiting groove 581 is assembled onto the bearing 21. Finally, the fastening bolt 1 550 and the fastening bolt 2 580 are locked to fix the support block 55 and the upper limiting block 58.

[0025] The side plate 51 is also provided with a positioning block 59 for positioning the support block 55, so as to ensure that the support block 55 can be quickly and accurately installed in the transverse limiting groove.

[0026] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A steel tube straightening machine roll gap automatic adjusting system, comprising a frame (1), a driving mechanism (4) mounted on the frame (1) for driving an upper straightening roll (2) to move towards a lower straightening roll (3), the driving mechanism (4) comprising a screw rod (41), a screw rod table (42) lifted and lowered by the screw rod (41), the screw rod table (42) being connected with an upper roll stand (5) for mounting the upper straightening roll (2), characterized in that, It also includes a cooperating force-bearing member (61) for connecting with the frame (1) and the lead screw table (42) after the upper straightening roller (2) is driven.

2. The automatic roller gap adjustment system for a steel pipe straightening machine according to claim 1, characterized in that, The frame (1) and the lead screw table (42) are provided with connecting ears (62) through which the cooperative force-bearing rod (61) passes. Each connecting ear (62) has locking nuts (63) on both sides that lock the cooperative force-bearing rod (61) onto the corresponding connecting ear (62). The cooperative force-bearing rod (61) is provided with threads that cooperate with the locking nuts (63).

3. The automatic roller gap adjustment system for a steel pipe straightening machine according to claim 1, characterized in that, The frame (1) and the lead screw table (42) are connected to the cooperating force-bearing rod (61) by fasteners (64), and the cooperating force-bearing rod (61) is provided with an adjustment groove (611) through which the fasteners (64) pass.

4. The automatic roller gap adjustment system for a steel pipe straightening machine according to claim 1, 2, or 3, characterized in that, The frame (1) includes an upper frame plate (11) and a lower frame plate (12) disposed on the upper and lower sides of the lead screw table (42). The upper frame plate (11) and the lower frame plate (12) are respectively used to connect to the two ends of the cooperating force member (61) after the upper straightening roller (2) is driven.

5. The automatic roller gap adjustment system for a steel pipe straightening machine according to claim 4, characterized in that, The frame (1) also includes vertical rails (13) arranged on both sides of the lead screw table (42) for guiding the lead screw table (42); the upper roller frame (5) is provided with connecting arms (7) connected to the lead screw table (42), and the lower frame plate (12) is provided with guide holes for the connecting arms (7) to pass through.

6. The automatic roller gap adjustment system for a steel pipe straightening machine according to claim 1, 2, or 3, characterized in that, Both sides of the lead screw platform (42) are provided with cooperating force-bearing rods (61).

7. The automatic roller gap adjustment system for a steel pipe straightening machine according to claim 1, characterized in that, The upper roller frame (5) includes two side plates (51) arranged opposite to each other. The side plates (51) are provided with mounting grooves (52). The mounting grooves (52) have inlet and outlet openings (521). Both sides of the mounting grooves (52) are provided with transverse limiting grooves composed of upper limit members (53) and lower limit members (54). The transverse limiting grooves are provided with support blocks (55) that span the mounting grooves (52) and can slide out of the transverse limiting grooves. The support blocks (55) have the function of supporting the assembly on the upper straightener. The lower bearing limiting groove (551) of the bearing (21) on the roller (2) is provided with vertical limiting component one (56) and vertical limiting component two (57) respectively on both sides of the mounting groove (52) above the upper limit component (53). An upper limiting block (58) that can slide out is provided in the vertical limiting groove formed between the vertical limiting component one (56) and the vertical limiting component two (57). The upper limiting block (58) has an upper bearing limiting groove (581) for limiting the outer periphery of the bearing.

8. The automatic roller gap adjustment system for a steel pipe straightening machine according to claim 7, characterized in that, The side plate (51) is also provided with a positioning block (59) for positioning the support block (55).

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