Core rod supporting roller automatic adjusting device for cold rolling seamless steel pipe production line

Abstract

The utility model discloses an automatic adjusting device of a core rod supporting roller for a cold rolling seamless steel pipe production line, relates to the technical field of automatic adjusting device structures of supporting rollers, and aims to solve the problems that the supporting effect is influenced and the processing of the core rod is influenced because the conventional supporting roller cannot be automatically adjusted conveniently when supporting the core rod. Mounting supporting frames are installed on the two sides of the upper portion of the stable base, limiting sliding grooves are formed in the mounting supporting frames, mounting supporting bases are installed on the upper portions of the mounting supporting frames, fixing bases are arranged at the upper ends of the mounting supporting bases, and hydraulic devices are installed on the upper portions of the mounting supporting bases. A hydraulic device is installed on the upper portion of the installation supporting frame, a telescopic rod is installed below the hydraulic device, a limiting installation base is arranged at the lower end of the telescopic rod, a supporting roller is installed between the two installation supporting frames, installation shafts are arranged at the two ends of the supporting roller, movable sliding bases are installed on the two sides of the supporting roller, and limiting clamping bases are arranged at the upper ends of the movable sliding bases.

Description

Technical Field

[0001] The utility model relates to the technical field of the structure of an automatic adjusting device for backup rolls, in particular to an automatic adjusting device for a mandrel backup roll used in a cold rolling seamless steel tube production line. Background Technique

[0002] A cold rolling seamless steel tube production line is equipment for producing cold rolled precision seamless steel tubes. Cold rolled seamless steel tubes are seamless steel tubes with high dimensional accuracy and good surface finish used for precision mechanical structures, hydraulic equipment, or steel bar sleeves. When a cold rolling seamless steel tube production line is in processing, a mandrel is required. A mandrel is a die component used to form a contour in a green compact or sintered body in the pressing direction. When using a mandrel, a backup roll is needed for support.

[0003] After retrieval, the authorized announcement number is CN203044518U, which discloses a single-roll automatic adjusting device for a push rod used in rolling seamless steel tubes. The motor reducer, the base of the screw jack, two slider positioning blocks, and the bearing housing are respectively fixed on the base. The motor reducer is connected to the screw jack through a coupling, and the coupling is connected with elastic pin shafts. The screw head of the screw jack and the trunnion seat of the hydraulic cylinder are fixed on the same slider. The slider is placed in the slider positioning block. The cylinder head of the hydraulic cylinder is connected to the swing arm shaft through a crank. The hydraulic cylinder and the crank are fixedly connected through a pin shaft, and the crank and the swing arm shaft are fixed by means of a key. The swing arm shaft is placed in three bearing housings. The roll shaft kit is sleeved on the swing arm, and the swing arm is welded to one end of the transmission shaft. The technical effect is that it can adapt to different specifications of push rod heights in real time, quickly, and steplessly, effectively reducing the vibration of the machine body, being convenient for installation and maintenance, having a low cost, and a long service life.

[0004] However, when the existing backup rolls support the mandrel, they cannot be conveniently adjusted automatically, which will affect the support effect and thus affect the processing of the mandrel. Therefore, there is an urgent need in the market for an automatic adjusting device for a mandrel backup roll used in a cold rolling seamless steel tube production line to solve these problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automatic adjusting device for a mandrel backup roll used in a cold rolling seamless steel tube production line to solve the problem that the existing backup rolls cannot be conveniently adjusted automatically when supporting the mandrel, which will affect the support effect and thus affect the processing of the mandrel as mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: An automatic adjustment device for a mandrel support roll in a cold rolling seamless steel pipe production line, including a stable base, on both sides above the stable base, there are installed mounting support frames, inside the mounting support frames, there are provided limit sliding grooves, above the mounting support frames, there is installed a mounting support seat, at the upper end of the mounting support seat, there is a fixed seat, above the mounting support seat, there is installed a hydraulic device, below the hydraulic device, there is an expansion rod, at the lower end of the expansion rod, there is a limit mounting seat, between the two mounting support frames, there is installed a support roll, at both ends of the support roll, there are installation shafts, on both sides of the support roll, there are installed moving sliding seats, at the upper end of the moving sliding seat, there is a limit clamping seat.

[0007] Preferably, there are two mounting support frames, the two mounting support frames are symmetrical with respect to the vertical center line of the stable base, and the stable base is welded to the mounting support frames.

[0008] Preferably, the mounting support seat is welded to the mounting support frame, and the fixed seat and the mounting support seat are of an integral structure.

[0009] Preferably, at the lower end of the hydraulic device, there is a mounting seat one, and the mounting seat one and the mounting support seat are fixedly connected by mounting screws one, at one end of the hydraulic device, there is a mounting seat two, and the mounting seat two and the fixed seat are fixedly connected by mounting screws two.

[0010] Preferably, there are two hydraulic devices, and the limit mounting seat is welded to the expansion rod.

[0011] Preferably, the moving sliding seat is arranged corresponding to the installation shaft, and the moving sliding seat is located inside the limit sliding groove.

[0012] Preferably, the limit clamping seat and the moving sliding seat are of an integral structure, inside the limit clamping seat, there is a limit clamping groove, and the limit mounting seat is located inside the limit clamping groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. For this automatic adjustment device for a mandrel support roll in a cold rolling seamless steel pipe production line, a hydraulic device is installed. By turning on the hydraulic device, the expansion rod drives the limit mounting seat, and through the limit mounting seat, the limit clamping seat can drive the moving sliding seat to perform limit movement along the direction of the limit sliding groove. In this way, the moving sliding seat can drive the support roll to move, so as to conveniently adjust the position of the support roll, enabling the support roll to better support the mandrel, and thus improving the production efficiency of the cold rolling seamless steel pipe production line.

[0015] 2. The automatic adjustment device for the mandrel support roll of the cold-rolled seamless steel pipe production line can improve the firmness of the hydraulic device installation through the set fixed seat, avoiding possible shaking of the hydraulic device, which may affect the use effect of the hydraulic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall front view of the present utility model;

[0017] Figure 2 is the overall side view of the present utility model;

[0018] Figure 3 is the Figure 1 partial enlarged view of area A of the present utility model;

[0019] Figure 4 is the Figure 2 partial enlarged view of area B of the present utility model.

[0020] In the figure: 1, stable base; 2, installation support frame; 201, limit chute; 3, installation support seat; 4, fixed seat; 5, hydraulic device; 501, first installation seat; 502, second installation seat; 6, first installation screw; 7, second installation screw; 8, telescopic rod; 9, limit installation seat; 10, support roll; 1001, installation shaft; 11, moving slide; 12, limit clamping seat; 1201, limit card slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Please refer to Figures 1-4, an embodiment provided by the present utility model: an automatic adjustment device for a mandrel supporting roll in a cold rolling seamless steel pipe production line, including a stable base 1. On both sides above the stable base 1, installation support frames 2 are installed. Inside the installation support frames 2, limit sliding grooves 201 are provided. Above the installation support frames 2, an installation support seat 3 is installed. At the upper end of the installation support seat 3, a fixed seat 4 is provided. Above the installation support seat 3, a hydraulic device 5 is installed. Below the hydraulic device 5, a telescopic rod 8 is installed. At the lower end of the telescopic rod 8, a limit installation seat 9 is provided. Between the two installation support frames 2, a supporting roll 10 is installed. At both ends of the supporting roll 10, installation shafts 1001 are provided. On both sides of the supporting roll 10, moving sliding seats 11 are installed. At the upper end of the moving sliding seats 11, limit clamping seats 12 are provided. It should be noted that in order to save space and highlight the innovative elements of this patent, the working principle and process of how the seamless steel pipe production line specifically works, as well as the working principle and process of how the two hydraulic devices work synchronously, are not described in this patent.

[0023] When in use, by opening the hydraulic device 5, the telescopic rod 8 drives the limit installation seat 9. Through the limit installation seat 9, the limit clamping seat 12 can drive the moving sliding seat 11 to perform limit movement along the direction of the limit sliding groove 201. In this way, the moving sliding seat 11 can drive the supporting roll 10 to move, so that the position of the supporting roll 10 can be conveniently adjusted, and the supporting roll 10 can better support the mandrel.

[0024] Please refer to Figure 1 and Figure 2 , there are two installation support frames 2, and the two installation support frames 2 are symmetric with respect to the vertical center line of the stable base 1. The stable base 1 is welded to the installation support frames 2, which can make the structure between the stable base 1 and the installation support frames 2 more firm, and the device can be conveniently installed through the installation support frames 2.

[0025] Please refer to Figure 1 and Figure 2 , the installation support seat 3 is welded to the installation support frames 2, and the fixed seat 4 and the installation support seat 3 are of an integral structure, which can make the structure between the installation support seat 3 and the installation support frames 2 more firm, so that the installation between the installation support seat 3 and the installation support frames 2 can be conveniently carried out.

[0026] Please refer to Figure 1 and Figure 3, a mounting base one 501 is provided at the lower end of the hydraulic device 5. The mounting base one 501 is fixedly connected to the mounting support base 3 through mounting screws one 6. A mounting base two 502 is provided at one end of the hydraulic device 5. The mounting base two 502 is fixedly connected to the fixed base 4 through mounting screws two 7. It is convenient to install and fix the hydraulic device 5 between the mounting support base 3 and the fixed base 4, so that the hydraulic device 5 can be installed more firmly.

[0027] Please refer to Figure 2 and Figure 4 , there are two hydraulic devices 5. The limit mounting base 9 is welded to the telescopic rod 8, which can make the structure between the limit mounting base 9 and the telescopic rod 8 more firm.

[0028] Please refer to Figure 2 and Figure 4 , the moving slide 11 is correspondingly arranged with the mounting shaft 1001. The moving slide 11 is located inside the limit chute 201, which is convenient to install and fix the moving slide 11 and the supporting roller 10.

[0029] Please refer to Figure 2 and Figure 4 , the limit clamping seat 12 and the moving slide 11 are of an integral structure. A limit clamping groove 1201 is arranged inside the limit clamping seat 12. The limit mounting base 9 is located inside the limit clamping groove 1201, which can make the structure between the limit clamping seat 12 and the moving slide 11 more firm. By the limit mounting base 9 being located inside the limit clamping groove 1201, the limit clamping seat 12 can drive the moving slide 11 to move, so that the supporting roller 10 can move, thus conveniently adjusting the position of the supporting roller 10.

[0030] Working principle: When in use, by turning on the hydraulic device 5, the telescopic rod 8 drives the limit mounting base 9. Through the limit mounting base 9, the limit clamping seat 12 can drive the moving slide 11 to perform limit movement along the direction of the limit chute 201. In this way, the moving slide 11 can drive the supporting roller 10 to move, so as to conveniently adjust the position of the supporting roller 10, enabling the supporting roller 10 to better support the mandrel, and making the production efficiency of the cold rolling seamless steel pipe production line higher. By setting the fixed base 4, the firmness of the installation of the hydraulic device 5 can be improved, avoiding possible shaking of the hydraulic device 5, which may affect the use effect of the hydraulic device 5.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An automatic adjustment device for a mandrel supporting roll used in a cold rolling seamless steel pipe production line, including a stable base (1), characterized in that: On both sides above the stable base (1), mounting support frames (2) are installed. Inside the mounting support frames (2), there are limit sliding grooves (201). Above the mounting support frames (2), a mounting support base (3) is installed. At the upper end of the mounting support base (3), there is a fixed base (4). Above the mounting support base (3), a hydraulic device (5) is installed. Below the hydraulic device (5), a telescopic rod (8) is installed. At the lower end of the telescopic rod (8), there is a limit mounting seat (9). Between the two mounting support frames (2), a support roller (10) is installed. At both ends of the support roller (10), there are mounting shafts (1001). On both sides of the support roller (10), moving sliding seats (11) are installed. At the upper end of the moving sliding seat (11), there is a limit clamping seat (12).

2. The automatic adjusting device for the mandrel supporting roll of a cold rolling seamless steel pipe production line according to claim 1, characterized in that: There are two mounting support frames (2), and the two mounting support frames (2) are symmetric with respect to the vertical center line of the stable base (1). The stable base (1) is welded to the mounting support frames (2).

3. An automatic adjusting device for a mandrel supporting roll used in a cold rolling seamless steel pipe production line according to claim 2, characterized in that: The mounting support base (3) is welded to the mounting support frames (2), and the fixed base (4) and the mounting support base (3) are of an integral structure.

4. An automatic adjusting device for a mandrel support roll used in a cold rolling seamless steel pipe production line according to claim 3, characterized in that: At the lower end of the hydraulic device (5), there is a first mounting seat (501). The first mounting seat (501) and the mounting support base (3) are fixedly connected by a first mounting screw (6). At one end of the hydraulic device (5), there is a second mounting seat (502). The second mounting seat (502) and the fixed base (4) are fixedly connected by a second mounting screw (7).

5. The automatic adjusting device for the mandrel supporting roll used in a cold rolling seamless steel pipe production line according to claim 4, characterized in that: There are two hydraulic devices (5), and the limit mounting seat (9) is welded to the telescopic rod (8).

6. The automatic adjusting device for the mandrel supporting roll of a cold rolling seamless steel pipe production line according to claim 5, characterized in that: The moving sliding seat (11) is arranged corresponding to the mounting shaft (1001), and the moving sliding seat (11) is located inside the limit sliding groove (201).

7. An automatic adjustment device for a mandrel support roll used in a cold rolling seamless steel pipe production line according to claim 6, characterized in that: The limit clamping seat (12) and the moving sliding seat (11) are of an integral structure. Inside the limit clamping seat (12), there is a limit clamping groove (1201), and the limit mounting seat (9) is located inside the limit clamping groove (1201).

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