Core rod clamping device

Abstract

The utility model provides a core rod clamping device which comprises a first tilting fillet, a second tilting fillet and a concave U-shaped seat, the first tilting fillet comprises a front swing arm tilting fillet and an upper tilting fillet which are integrally formed, a first driving shaft mounting hole is formed in the upper tilting fillet in a penetrating mode, and the bottom face of the upper tilting fillet surrounds the first driving shaft mounting hole to form a first mounting seat. The second tilting fillet is of an L-shaped structure, a second driving shaft mounting hole is formed in the second tilting fillet in a penetrating mode, the bottom face of the second tilting fillet surrounds the second driving shaft mounting hole to form a second mounting base, and a groove structure with the two ends penetrating through is formed in the surface of the concave U-shaped base. The first tilting fillet and the second tilting fillet are respectively fixed on the surface of the concave U-shaped seat, and the first mounting seat and the second mounting seat are limited in the groove; the grooves on the concave U-shaped seat are matched with the first mounting seat and the second mounting seat on the first tilting fillet and the second tilting fillet for mounting, so that the impact of the limiting torque on the core rod clamping device can be effectively overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe manufacturing, in particular to a mandrel clamping device. Background Art

[0002] The mandrel clamping device is mainly used to control the running speed of the mandrel during tube rolling to improve the inner surface quality of the tube. The limit rack is arranged at the side of the PQF rolling line, while the mandrel clamping device is located on the PQF rolling line and is used to clamp the mandrel. Summary of the Invention

[0003] The mandrel clamping device provided by the utility model includes a first tile seat, a second tile seat and a concave U-shaped seat. The first tile seat includes a front swing arm tile seat and an upper tile seat integrally formed. A first drive shaft mounting hole is penetrated through the upper tile seat. A first mounting seat is formed on the bottom surface of the upper tile seat around the first drive shaft mounting hole. The second tile seat is of an L-shaped structure. A second drive shaft mounting hole is penetrated through the second tile seat. A second mounting seat is formed on the bottom surface of the second tile seat around the second drive shaft mounting hole. A groove structure with both ends penetrated is formed on the surface of the concave U-shaped seat. The first tile seat and the second tile seat are respectively fixed on the surface of the concave U-shaped seat, and the first mounting seat and the second mounting seat are both limited in the groove.

[0004] Further, gaskets are installed between the two sides of the first mounting seat and the second mounting seat and the groove, so that the first mounting seat and the second mounting seat are cooperatively installed with the groove.

[0005] Further, a connecting rod structure is installed between the first tile seat and the second tile seat.

[0006] Further, a through first rotating shaft hole is provided on the front swing arm tile seat, and a through second rotating shaft hole is provided on the second tile seat. The front swing arm tile seat and the second tile seat are connected through the first rotating shaft hole and the second rotating shaft hole and the connecting rod structure.

[0007] Further, the first tile seat and the concave U-shaped seat are fixedly connected by an internal hexagonal bolt, and the torque value is 3826 NM.

[0008] Further, the second tile seat and the concave U-shaped seat are fixedly connected by an internal hexagonal bolt, and the torque value is 3826 NM.

[0009] The advantages and positive effects of the utility model are:

[0010] The front swing arm seat and the upper seat of the present utility model are made into an integral structure, which increases the stability of the device structure; the second seat is an L-shaped integral structure, which increases the physical strength of the device; the groove on the concave U-shaped seat is matched with the first mounting seat and the second mounting seat on the first seat and the second seat, which can effectively improve the positioning problem during the installation of the device and can effectively overcome the impact of the limiting torque on the mandrel clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The technical solutions of the present utility model will be further described in detail below in conjunction with the drawings and embodiments. However, it should be noted that these drawings are only designed for the purpose of explanation and therefore do not limit the scope of the present utility model. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0012] Figure 1 It is a top view of the structure of the mandrel clamping device provided by an embodiment of the present utility model;

[0013] Figure 2 It is a front view of the structure of the first seat of the mandrel clamping device provided by an embodiment of the present utility model;

[0014] Figure 3 It is a top view of the structure of the first seat of the mandrel clamping device provided by an embodiment of the present utility model;

[0015] Figure 4 It is a front view of the structure of the second seat of the mandrel clamping device provided by an embodiment of the present utility model;

[0016] Figure 5 It is a top view of the structure of the second seat of the mandrel clamping device provided by an embodiment of the present utility model;

[0017] Figure 6 It is a front view of the structure of the concave U-shaped seat of the mandrel clamping device provided by an embodiment of the present utility model; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described in more detail below with reference to the drawings in the embodiments of the present utility model. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0020] As shown in Figure 1 , 2 , 3, 4, 5, and 6, the mandrel clamping device of the present utility model includes a first tile seat 1, a second tile seat 2, and a concave U-shaped seat 3. The first tile seat includes a front swing arm tile seat 101 and an upper tile seat 102 integrally formed. A first drive shaft mounting hole 103 is provided through the upper tile seat. A first mounting seat 104 is formed on the bottom surface of the upper tile seat around the first drive shaft mounting hole. The second tile seat is an L-shaped structure. A second drive shaft mounting hole 201 is provided through the second tile seat. A second mounting seat 202 is formed on the bottom surface of the second tile seat around the second drive shaft mounting hole. A groove structure 301 with both ends penetrating is formed on the surface of the concave U-shaped seat. The first tile seat and the second tile seat are respectively fixed on the surface of the concave U-shaped seat, and both the first mounting seat and the second mounting seat are limited within the groove.

[0021] To improve the fitting and installation stability between the first tile seat, the second tile seat, and the concave U-shaped seat, it can be considered that gaskets are installed between the two sides of the first mounting seat and the second mounting seat and the groove, so that the first mounting seat and the second mounting seat are fitted and installed with the groove.

[0022] Moreover, a connecting rod structure 4 is installed between the first tile seat and the second tile seat. Among them, the connecting rod structure uses existing products on the market. A first rotating shaft hole 105 is provided through the front swing arm tile seat. A second rotating shaft hole 203 is provided through the second tile seat. The front swing arm tile seat and the second tile seat are connected through the first rotating shaft hole, the second rotating shaft hole, and the connecting rod structure, realizing the connection between the connecting rod structure and the front swing arm tile seat and the second tile seat.

[0023] In this embodiment, the first tile seat and the concave U-shaped seat are fixedly connected by an internal hexagonal bolt, and the torque value is 3826 NM; the second tile seat and the concave U-shaped seat are fixedly connected by an internal hexagonal bolt, and the torque value is 3826 NM.

[0024] In this embodiment, the connecting rod structure is installed between the first tile seat and the second tile seat, and the connecting rod structure is connected to the first tile seat and the second tile seat through a rotating shaft; the drive shaft passes through the first drive shaft mounting hole 103 and the second drive shaft mounting hole 201, so that the clamping device can effectively overcome the impact of the limit torque on the mandrel clamping device during operation.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Mandrel clamping device, Characterized in that, It includes a first tile seat, a second tile seat and a concave U-shaped seat. The first tile seat includes a front swing arm tile seat and an upper tile seat formed integrally. A first drive shaft mounting hole is provided through the upper tile seat. A first mounting seat is formed on the bottom surface of the upper tile seat around the first drive shaft mounting hole. The second tile seat is of an L-shaped structure. A second drive shaft mounting hole is provided through the second tile seat. And a second mounting seat is formed on the bottom surface of the second tile seat around the second drive shaft mounting hole. A groove structure with both ends penetrating is formed on the surface of the concave U-shaped seat. The first tile seat and the second tile seat are respectively fixed on the surface of the concave U-shaped seat. And the first mounting seat and the second mounting seat are both limited within the groove.

2. The mandrel clamping device according to claim 1, Characterized in that, Gaskets are installed between both sides of the first mounting seat and the second mounting seat and the groove, so that the first mounting seat and the second mounting seat are fitted and installed with the groove.

3. The mandrel clamping device according to claim 1, Characterized in that, A connecting rod structure is installed between the first tile seat and the second tile seat.

4. The mandrel clamping device according to claim 3, Characterized in that, A through first rotating shaft hole is provided on the front swing arm tile seat. A through second rotating shaft hole is provided on the second tile seat. The front swing arm tile seat and the second tile seat are connected through the first rotating shaft hole, the second rotating shaft hole and the connecting rod structure.

5. The mandrel clamping device according to claim 1, Characterized in that, The first tile seat and the concave U-shaped seat are fixedly connected by an internal hexagonal bolt, and the torque value is 3826 NM.

6. The mandrel clamping device according to claim 1, Characterized in that, The second tile seat and the concave U-shaped seat are fixedly connected by an internal hexagonal bolt, and the torque value is 3826 NM.

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