Stainless steel pipe cold-drawing traction trolley

Abstract

The utility model relates to stainless steel pipe production technical field, and disclose a kind of stainless steel pipe cold-drawing tractor trolley, including rack, track, tractor and tong, the top of the tractor is provided with the first dismounting component connected with tong, the side of the tong is provided with second dismounting component, the first dismounting component includes installation box, the inner bottom wall of the installation box is fixedly connected with servo motor.The stainless steel pipe cold-drawing tractor trolley, start servo motor drives carousel reverse rotation, two mobile frames are driven to each other by the transmission of connecting block, so that two connecting rods drive two clamping blocks close, then tong is clamped on two clamping blocks, start servo motor drives carousel forward rotation, until the interval of two clamping blocks moves to the most distal end, realize the preliminary fixation of tong, finally tong is further fixed on the top of tractor by bolt, by reducing the number of bolt, can greatly reduce replacement time when needing to replace tong.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe production technology, specifically to a stainless steel pipe cold drawing traction trolley. Background Technology

[0002] Cold drawing of stainless steel pipes refers to a processing technology in which a stainless steel billet is cold and then passed through a drawing die of a specific shape and size. The billet is stretched by external force, causing it to undergo plastic deformation within the die, thereby gradually reducing the pipe diameter and increasing or decreasing the wall thickness. This process aims to obtain stainless steel pipes with higher dimensional accuracy, better surface quality, and specific mechanical properties and shapes.

[0003] In the existing stainless steel pipe cold drawing process, the jaws of the traction trolley are usually rigidly fixed to the trolley body directly with multiple bolts, and the bushings on them are also mostly fixed. This traditional method has obvious drawbacks: when the jaws are damaged, a large number of bolts need to be unscrewed, which is time-consuming and labor-intensive, seriously affecting production efficiency and increasing the labor intensity of workers. Therefore, a stainless steel pipe cold drawing traction trolley is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a stainless steel pipe cold drawing traction trolley to solve the problem that the traditional traction trolley jaws are rigidly fixed with multiple bolts, which makes replacement cumbersome, time-consuming and labor-intensive, seriously restricting production efficiency and increasing labor intensity.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a stainless steel pipe cold drawing traction trolley, including a frame, a track, a traction vehicle and a jaw, wherein the top of the traction vehicle is provided with a first disassembly and assembly component connected to the jaw, and a second disassembly and assembly component is provided on one side of the jaw.

[0006] The first assembly / disassembly assembly includes an installation box. A servo motor is fixedly connected to the inner bottom wall of the installation box. A turntable is fixedly connected to the output shaft of the servo motor. A connecting block is fixedly connected to the top of the turntable. A movable frame is fitted around the outside of the connecting block. A connecting rod is fixedly connected to the outside of the movable frame. A locking block is fixedly connected to the outside of the connecting rod.

[0007] Preferably, the track is fixedly connected to the top of the frame, a hook is fixedly connected to the right side of the tractor, and the jaws are installed on the top of the tractor.

[0008] Preferably, the mounting box is fixedly connected to the top of the tractor and fits into the jaws, and the number of connecting blocks is two and they are symmetrically distributed on the top of the turntable.

[0009] Preferably, a limiting block that fits against the top surface of the moving frame is fixedly connected to the top of the connecting block, the radius of the limiting block is larger than the radius of the connecting block, and a strip-shaped through hole adapted to the moving trajectory of the connecting block is opened inside the moving frame.

[0010] Preferably, positioning blocks are fixedly connected to both sides of the movable frame, and positioning grooves adapted to the moving trajectory of the positioning blocks are opened on both sides of the inner wall of the mounting box.

[0011] Preferably, there are two connecting rods, which are respectively installed on opposite sides of the two movable frames, and the connecting rods extend into the inside of the jaws.

[0012] Preferably, there are two locking blocks, which are installed on opposite sides of the two connecting rods respectively, and the locking blocks also extend into the inside of the jaws.

[0013] Preferably, the jaws are fixedly connected to the tractor by two bolts that are symmetrically distributed front and back. The bottom of the jaws is provided with a moving groove that matches the moving trajectory of the connecting rod. The inside of the jaws is provided with a moving cavity that matches the moving trajectory of the clamping block. The moving cavity is connected to the moving groove.

[0014] Preferably, the second disassembly assembly includes a mounting base, a gasket is fixedly connected to one side of the mounting base, and a liner is installed on the side of the gasket away from the mounting base.

[0015] Preferably, the mounting base is fixedly connected to the jaws, and there are two mounting bases symmetrically distributed. The bushing is connected to the mounting base by bolts.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0017] First, the servo motor of this utility model drives the turntable to rotate in the reverse direction. The two moving frames move closer to each other under the transmission of the connecting block, so that the two connecting rods drive the two locking blocks to move closer. Then, the jaws are locked onto the two locking blocks. The servo motor drives the turntable to rotate in the forward direction until the distance between the two locking blocks moves to the farthest end, realizing the initial fixing of the jaws. Finally, the jaws are further fixed to the top of the tractor by bolts. By reducing the number of bolts, the replacement time can be greatly reduced when the jaws need to be replaced.

[0018] Secondly, this utility model allows the liner to be removed from the mounting base by unscrewing the bolts, or the liner to be fixed to the mounting base by bolts, so as to select the appropriate liner according to specific production needs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of another axial integral structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the first disassembly and assembly component and its related parts of this utility model;

[0022] Figure 4 This is an exploded view of the mounting box of this utility model;

[0023] Figure 5 This is a schematic diagram of the second disassembly and assembly component and its related parts of this utility model.

[0024] The components are as follows: 1. Frame; 2. Track; 3. Traction vehicle; 4. Jaw; 5. First disassembly / assembly assembly; 501. Mounting box; 502. Servo motor; 503. Turntable; 504. Connecting block; 505. Moving frame; 506. Connecting rod; 507. Locking block; 6. Second disassembly / assembly assembly; 601. Mounting base; 602. Gasket; 603. Liner block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides the following technical solution:

[0027] Example 1

[0028] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A stainless steel pipe cold drawing traction trolley includes a frame 1, a track 2, a traction vehicle 3 and a jaw 4. The top of the traction vehicle 3 is provided with a first disassembly and assembly component 5 connected to the jaw 4.

[0029] The first assembly / disassembly component 5 includes a mounting box 501. A servo motor 502 is fixedly connected to the inner bottom wall of the mounting box 501. A turntable 503 is fixedly connected to the output shaft of the servo motor 502. A connecting block 504 is fixedly connected to the top of the turntable 503. A movable frame 505 is fitted on the outside of the connecting block 504. A connecting rod 506 is fixedly connected to the outside of the movable frame 505. A locking block 507 is fixedly connected to the outside of the connecting rod 506.

[0030] The track 2 is fixedly connected to the top of the frame 1, and the hook is fixedly connected to the right side of the tractor 3. The jaw 4 is installed on the top of the tractor 3.

[0031] The track 2 is fixed on the frame 1, providing a high-rigidity travel path for the tractor 3, ensuring the straightness and stability of the pulling process; the hook structure on the right side of the tractor 3 provides a standard and robust connection point with the traction chain or steel cable, ensuring the effective transmission of strong pulling force; the jaws 4 are installed on the top of the tractor 3, forming a centralized force receiving and execution unit, making the overall structure compact and the force flow transmission path clear and reasonable.

[0032] The mounting box 501 is fixedly connected to the top of the tractor 3 and fits into the jaw 4. There are two connecting blocks 504, which are symmetrically distributed on the top of the turntable 503.

[0033] Fixing the mounting box 501 and fitting it against the jaws 4 ensures that the entire drive mechanism has a solid mounting base, effectively resisting vibration and impact during operation. The symmetrical distribution of the two connecting blocks 504 on the turntable 503 balances the drive and prevents the moving frame 505 and connecting rod 506 from being overloaded or stuck during movement. This ensures that the locking block 507 can move smoothly and synchronously, achieving reliable locking and unlocking of the jaws 4.

[0034] The top of the connecting block 504 is fixedly connected to a limiting block that fits against the top surface of the moving frame 505. The radius of the limiting block is larger than the radius of the connecting block 504. The moving frame 505 has a strip-shaped through hole inside that matches the moving trajectory of the connecting block 504.

[0035] The strip-shaped through hole inside the movable frame 505 provides precise guidance for the movement of the connecting block 504, ensuring that the rotational motion is converted into precise linear motion; and the limiting block at the top of the connecting block 504, due to its larger radius, can hold the movable frame 505 in place, preventing it from accidentally detaching from the connecting block 504 due to vibration or inertia during movement, which greatly improves the reliability and safety of the first assembly / disassembly component 5.

[0036] Positioning blocks are fixedly connected to both sides of the movable frame 505, and positioning grooves that match the moving trajectory of the positioning blocks are opened on both sides of the inner wall of the mounting box 501.

[0037] By having the positioning blocks on both sides of the moving frame 505 cooperate with the positioning grooves on the inner wall of the mounting box 501, a second layer of guidance and support is provided for the movement of the moving frame 505. This effectively prevents the moving frame 505 from twisting or shifting during the force process, ensuring that it can only move horizontally along the preset precise path, thereby making the action finally transmitted to the card block 507 more accurate.

[0038] There are two connecting rods 506, which are installed on opposite sides of the two moving frames 505 respectively, and the connecting rods 506 extend into the inside of the jaws 4.

[0039] Two connecting rods 506 are respectively installed on opposite sides of the two moving frames 505, so that they can move synchronously towards or away from each other, thereby symmetrically transmitting power to the inside of the jaws 4. This symmetrical layout ensures that the locking or loosening force on both sides of the jaws 4 is balanced, avoiding jamming or wear problems that may be caused by force on one side, and ensuring the stability of the jaws 4 installation and the smoothness of the disassembly and assembly process.

[0040] There are two locking blocks 507, which are installed on opposite sides of the two connecting rods 506 respectively, and the locking blocks 507 also extend into the inside of the jaws 4.

[0041] As the final actuator, the locking block 507 extends into the jaw 4 and can directly engage or disengage with the inside of the jaw 4. The opposing movements of the two locking blocks 507 can achieve the clamping or releasing of the jaw 4. This mechanical locking method can withstand the huge reverse force in the pulling operation, prevent the jaw 4 from loosening or shifting during the operation, and ensure production safety.

[0042] The jaws 4 are fixedly connected to the tractor 3 by two bolts that are symmetrically distributed front and back. The bottom of the jaws 4 has a moving groove that matches the moving trajectory of the connecting rod 506. The inside of the jaws 4 has a moving cavity that matches the moving trajectory of the locking block 507. The moving cavity is connected to the moving groove.

[0043] The symmetrically distributed bolts provide basic mechanical fixation for the jaws 4, which is the primary safety guarantee; while the movable grooves and movable cavities opened at the bottom and inside of the jaws 4 provide dedicated and precise channels for the movement of the connecting rod 506 and the locking block 507, ensuring that the first disassembly and assembly component 5 can be used in conjunction with the jaws 4 to achieve their respective actions without interference.

[0044] Example 2

[0045] Please see Figure 1 , Figure 2 and Figure 5 Furthermore, based on Embodiment 1, a second disassembly and assembly component 6 is provided on one side of the jaws 4;

[0046] The second assembly / disassembly component 6 includes a mounting base 601, a gasket 602 is fixedly connected to one side of the mounting base 601, and a liner 603 is installed on the side of the gasket 602 away from the mounting base 601.

[0047] Mounting base 601 is permanently fixed to jaw 4, avoiding damage to jaw 4 body from frequent disassembly and assembly; shim 602, as an optional adjustment or buffer, can ensure installation flatness and absorb a small amount of vibration; liner 603 is installed on shim 602, making liner 603 an independent module. After wear, only liner 603 itself needs to be replaced, without changing mounting base 601 and jaw 4, which greatly reduces maintenance costs and changeover time.

[0048] Mounting base 601 is fixedly connected to jaw 4. There are two mounting bases 601, which are symmetrically distributed. The liner 603 is connected to the mounting base 601 by bolts.

[0049] Two mounting bases 601 are symmetrically distributed on the jaws 4, ensuring that the clamping force of the liner 603 on the steel pipe is centrally symmetrical and uniform, preventing the steel pipe from being damaged by eccentric force or slipping when pulled out.

[0050] In actual operation, when this device is in use, firstly, the operator, according to the specifications of the steel pipe to be pulled, installs the appropriate bushing 603 onto the mounting seat 601 on one side of the jaw 4 using the bolts of the second disassembly and assembly component 6. The shim 602 ensures that the installation is flat. Then, the servo motor 502 in the first disassembly and assembly component 5 is started to drive the turntable 503 to rotate in the reverse direction, causing the symmetrically distributed connecting blocks 504 to drive the two moving frames 505 to move towards each other. The moving frames 505 drive the locking block 507 to retract through the connecting rod 506, thereby hoisting the jaw 4 to the top of the tractor 3 and fitting it against the mounting box 501. Next, the servo motor 502 rotates in the forward direction, pushing the two clamping blocks 507 to move in opposite directions to the farthest end of the moving cavity inside the jaw 4, achieving the initial mechanical locking of the jaw 4. Finally, the jaw 4 is finally fastened to the tractor 3 with two bolts. After clamping, the hook on the right side of the tractor 3 is connected to the traction chain or steel cable to provide the main traction force. The tractor 3 moves along the track 2 under the power drive, and the jaw 4 tightly bites the head of the steel pipe through the liner 603, pulling it through the mold to complete the cold drawing. When it is necessary to replace the jaw 4 or the liner 603, the operation can be completed quickly by reversing the order.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stainless steel tube cold-drawing pulling trolley comprising a frame (1), a track (2), a pulling vehicle (3) and a jaw (4), characterized in that: The top of the tractor (3) is provided with a first disassembly assembly (5) connected to the jaws (4), and a second disassembly assembly (6) is provided on one side of the jaws (4). The first disassembly and assembly component (5) includes a mounting box (501), a servo motor (502) is fixedly connected to the inner bottom wall of the mounting box (501), a turntable (503) is fixedly connected to the output shaft of the servo motor (502), a connecting block (504) is fixedly connected to the top of the turntable (503), a moving frame (505) is fitted on the outside of the connecting block (504), a connecting rod (506) is fixedly connected to the outside of the moving frame (505), and a locking block (507) is fixedly connected to the outside of the connecting rod (506).

2. The stainless steel tube cold-drawing pulling trolley according to claim 1, characterized in that: The track (2) is fixedly connected to the top of the frame (1), the hook is fixedly connected to the right side of the tractor (3), and the jaw (4) is installed on the top of the tractor (3).

3. The stainless steel tube cold-drawing tractor trolley according to claim 1, characterized in that: The mounting box (501) is fixedly connected to the top of the tractor (3) and fits into the jaw (4). There are two connecting blocks (504) and they are symmetrically distributed on the top of the turntable (503).

4. The stainless steel tube cold-drawing tractor trolley according to claim 1, characterized in that: The top of the connecting block (504) is fixedly connected to a limiting block that fits against the top surface of the moving frame (505). The radius of the limiting block is larger than the radius of the connecting block (504). The interior of the moving frame (505) is provided with a strip-shaped through hole that matches the moving trajectory of the connecting block (504).

5. The stainless steel tube cold-drawing tractor trolley according to claim 1, characterized in that: Positioning blocks are fixedly connected to both sides of the movable frame (505), and positioning grooves adapted to the moving trajectory of the positioning blocks are opened on both sides of the inner wall of the mounting box (501).

6. The stainless steel tube cold-drawing tractor trolley according to claim 1, characterized in that: The number of connecting rods (506) is two and they are respectively installed on opposite sides of the two movable frames (505). The connecting rods (506) extend into the inside of the jaws (4).

7. The stainless steel tube cold-drawing tractor trolley according to claim 1, characterized in that: The number of the locking blocks (507) is two and they are respectively installed on opposite sides of the two connecting rods (506). The locking blocks (507) also extend into the inside of the jaws (4).

8. The stainless steel tube cold-drawing tractor trolley according to claim 1, characterized in that: The jaws (4) are fixedly connected to the tractor (3) by two bolts that are symmetrically distributed front and back. The bottom of the jaws (4) is provided with a moving groove that matches the moving trajectory of the connecting rod (506). The inside of the jaws (4) is provided with a moving cavity that matches the moving trajectory of the locking block (507). The moving cavity is connected to the moving groove.

9. The stainless steel tube cold-drawing tractor trolley according to claim 1, characterized in that: The second disassembly and assembly component (6) includes a mounting base (601), a gasket (602) is fixedly connected to one side of the mounting base (601), and a liner (603) is installed on the side of the gasket (602) away from the mounting base (601).

10. The stainless steel tube cold-drawing pulling trolley according to claim 9, characterized in that: The mounting base (601) is fixedly connected to the jaw (4). There are two mounting bases (601) and they are symmetrically distributed. The bushing (603) is connected to the mounting base (601) by bolts.

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