Feeding trolley of cold pilger mill

Abstract

The utility model discloses a cold pilger mill feeding trolley which comprises a lathe bed provided with a guide rail. The box body is slidably connected to the guide rail, a hollow shaft which is hollow and penetrates through the box body is arranged on the box body, and the hollow shaft is parallel to the guide rail; the moving assembly is provided with a lead screw parallel to the hollow shaft and a nut in threaded connection with the lead screw, and the nut is connected to the box body; the clamping assembly comprises a sliding plate slidably connected to the box body and capable of moving in the radial direction of the hollow shaft and a top plate connected to the sliding plate, a groove matched with the to-be-cold-rolled pipe blank is formed in the top plate, at least one side of the groove is open, and the opening direction of the groove is the same as the moving direction of the sliding plate.

Description

Technical Field

[0001] The present application belongs to the technical field of cold-rolled tube equipment, and more specifically, to a cold-rolled tube mill feeding trolley. Background Art

[0002] In a cold rolling mill, the feeding trolley is an important device used to feed the tube from the front to the back of the mill to complete the continuous rolling process. Traditional feeding trolleys usually use chain or gear transmission, which has some problems. For example, the chain is easy to loosen and break, and the gear transmission is easy to generate noise and vibration. In addition, the traditional feeding trolley also has the problem of manual position adjustment and easy shaking of the tube billet, which not only increases the labor intensity, but also, especially when rolling large-diameter tube billets, the strong impact generated by the rolling mill cannot be reliably clamped by the trolley to suppress, making it difficult to ensure the rolling accuracy of the tube. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a cold rolling mill feeding trolley to solve the technical problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a cold rolling mill feeding trolley, which is installed on the bed of the cold rolling mill, and the bed is provided with guide rails, including:

[0005] A box body is slidably connected to the guide rail, and the box body is provided with a hollow shaft which is hollow inside and passes through the box body, and the hollow shaft is parallel to the guide rail;

[0006] A moving assembly, comprising a screw rod parallel to the hollow shaft and a nut threadedly connected to the screw rod, wherein the nut is connected to the box body;

[0007] The clamping assembly includes a sliding plate slidably connected to the box body and capable of moving radially along the hollow shaft, and a top plate connected to the sliding plate. A groove is formed on the top plate, which is suitable for the tube to be cold-rolled and is open on at least one side. The opening direction of the groove is the same as the moving direction of the sliding plate.

[0008] Optionally, the top plate and the sliding plate are stacked and the sliding plate has an avoidance groove that is concentric with the profile groove.

[0009] Optionally, the top plate is detachably connected to the sliding plate.

[0010] Optionally, the clamping assembly further comprises a guide block;

[0011] The guide block is connected to the box body and is slidably connected to the sliding plate.

[0012] Optionally, the guide blocks are arranged on opposite sides of the sliding plate.

[0013] Optionally, the clamping assembly further comprises an adjustment flange disposed between the box body and the sliding plate and detachably connected to the box body;

[0014] The sliding plate is slidably connected to the adjusting flange and is slidably connected to the box body through the adjusting flange.

[0015] Optionally, the clamping assembly further comprises a sealing ring;

[0016] The sealing ring is arranged between the adjusting flange and the box body and closes the gap formed between the adjusting flange and the box body.

[0017] Optionally, the clamping assembly further comprises a support and a cylinder mounted on the support;

[0018] The sliding plate is connected to the power output end of the cylinder.

[0019] Optionally, the moving assembly further comprises a wear-resistant plate detachably connected to the box body;

[0020] The box body is slidably connected to the guide rail via the wear-resistant plate.

[0021] Optionally, at least two groups of the moving components are arranged on opposite sides of the hollow shaft.

[0022] The beneficial effect of the cold rolling tube mill feeding trolley provided by the present application is that: compared with the prior art, the box used to transport the tube billet to be cold rolled in the present application is driven by the screw and nut and moves stably along the guide rail. When the tube billet is cold rolled, the sliding plate can be moved along the radial direction of the hollow shaft and the top plate can be matched with the tube wall of the hollow shaft to clamp the tube billet, which effectively reduces the shaking of the tube billet during the cold rolling process and ensures the cold rolling accuracy. In addition, when the position of the tension trolley needs to be adjusted, the sliding plate can be moved in the direction away from the hollow shaft, and the position of the feeding trolley can be adjusted by the forward and reverse rotation of the screw in the subsequent process, avoiding manual operation, greatly improving the feeding efficiency, and far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1A schematic diagram of the overall structure of the cold rolling mill feeding trolley provided in the embodiment of the present application;

[0025] Figure 2 A partial structural front view of a cold rolling mill feeding trolley provided in an embodiment of the present application;

[0026] Figure 3 A left view of a portion of the structure of the cold rolling mill feeding trolley provided in an embodiment of the present application;

[0027] Figure 4 A right view of a partial structure of the feeding trolley of the cold rolling mill provided in the embodiment of the present application;

[0028] Figure 5 A front view of a sliding plate structure provided in an embodiment of the present application;

[0029] Figure 6 A front view of the top plate structure provided in an embodiment of the present application.

[0030] Among them, the reference numerals in the figure are: 101, bed; 102, guide rail; 103, box; 104, hollow shaft; 105, screw rod; 106, nut; 107, sliding plate; 108, top plate; 109, groove; 110, avoidance groove; 111, guide block; 112, adjustment flange; 113, sealing ring; 114, support; 115, cylinder; 116, wear-resistant plate. Implementation

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] Please also read Figures 1 to 6 Now, a cold rolling mill feeding trolley provided in the embodiment of the present application is described. The cold rolling mill of the present application is installed on the bed 101 of the cold rolling mill, and the bed 101 is provided with a guide rail 102. The feeding trolley includes the bed 101, a box 103, a moving assembly and a clamping assembly. Among them:

[0036] The box body 103 is slidably connected to the guide rail 102. The box body 103 is provided with a hollow shaft 104 which is hollow inside and penetrates the box body 103. In this embodiment, the hollow shaft 104 is used to pass the tube billet to be cold-rolled and the hollow shaft 104 is parallel to the guide rail 102. The moving assembly has a screw rod 105 parallel to the hollow shaft 104 and a nut 106 threadedly connected to the screw rod 105, and the nut 106 is connected to the box body 103. The clamping assembly includes a sliding plate 107 which is slidably connected to the box body 103 and can move radially along the hollow shaft 104, and a top plate 108 connected to the sliding plate 107. The top plate 108 is formed with a groove 109 which is adapted to the tube billet to be cold-rolled and is open on at least one side, and the opening direction of the groove 109 is the same as the moving direction of the sliding plate 107.

[0037] According to the above structure provided in this embodiment, after the tube to be cold-rolled passes through the hollow shaft 104, the sliding plate 107 can slide along the radial direction of the hollow shaft 104, so that the top plate 108 cooperates with the tube wall of the hollow shaft 104 to clamp the tube to be cold-rolled. At this time, the forward-rotating screw 105 can use the screw 105 to drive the nut 106 to move forward, thereby driving the box 103 to move forward and complete the feeding of the tube. During the cold rolling process of the tube, the top plate 108 can continue to cooperate with the hollow shaft 104 to clamp the tube, which greatly avoids the shaking of the tube during the cold rolling process and effectively ensures the stability and accuracy of the cold rolling process of the tube. When it is necessary to adjust the position of the tension trolley and perform the next feeding operation, the sliding plate 107 can be slid in the direction away from the hollow shaft 104 and the top plate 108 can be loosened from the tube blank. At this time, the reversing screw rod 105 can make the feeding trolley retreat and complete the adjustment of the feeding trolley position, avoiding manual operation and greatly improving the feeding efficiency, which is far superior to the existing technology.

[0038] In another embodiment of the present application, please refer to Figures 1 to 6The top plate 108 and the sliding plate 107 are stacked and the sliding plate 107 has an avoidance groove 110 which is concentric with the groove 109. According to the above structure provided in this embodiment, the combination of the top plate 108 and the sliding plate 107 is more stable, so that the top plate 108 can be pressed against the tube blank with a greater force under the driving action of the sliding plate 107, and different top plates 108 can be conveniently replaced according to the outer diameter of the actually produced tube, avoiding mechanical interference of the sliding plate 107, and further improving the stability of clamping the tube blank.

[0039] In another embodiment of the present application, please refer to Figures 1 to 6 The top plate 108 is detachably connected to the sliding plate 107. According to the above structure provided in this embodiment, when cold rolling is performed on pipes of different diameters, the top plate 108 of the corresponding model can be replaced so that the top plate 108 can more firmly press the pipe blank, which has a wide range of usage scenarios.

[0040] In another embodiment of the present application, please refer to Figures 1 to 6 The clamping assembly further includes a guide block 111, which is connected to the box body 103 and slidably connected to the sliding plate 107. According to the above structure provided in this embodiment, the guide block 111 can be beneficial to the stability of the sliding process of the sliding plate 107, thereby improving the precision of the cooperation between the top plate 108 and the hollow shaft 104, and further facilitating the improvement of the cold rolling precision of the tube blank. Further, in another embodiment of the present application, please refer to Figures 1 to 6 The guide blocks 111 are arranged on opposite sides of the sliding plate 107. This has the effect of further improving the cold rolling accuracy.

[0041] In another embodiment of the present application, please refer to Figures 1 to 6 The clamping assembly further includes an adjustment flange 112 disposed between the box body 103 and the sliding plate 107 and detachably connected to the box body 103. The sliding plate 107 is slidably connected to the adjustment flange 112 and is slidably connected to the box body 103 through the adjustment flange 112. According to the above structure provided in this embodiment, by replacing the adjustment flange 112 with different thicknesses, the interval between the sliding plate 107 and the box body 103 can be adjusted, so that the sliding of the sliding plate 107 relative to the hollow shaft 104 can be more adapted to the hollow shaft 104, thereby facilitating a better fit between the top plate 108 and the hollow shaft 104, and having a good use effect.

[0042] In another embodiment of the present application, please refer to Figures 1 to 6The clamping assembly further includes a sealing ring 113, which is disposed between the adjusting flange 112 and the box body 103 and closes the gap formed between the adjusting flange 112 and the box body 103. According to the above structure provided in this embodiment, the sealing ring 113 can effectively prevent dust or impurities from entering the box body 103 from the gap between the adjusting flange 112 and the box body 103, which is beneficial to improving the service life of the cold rolling mill feeding trolley provided in this embodiment.

[0043] In another embodiment of the present application, please refer to Figures 1 to 6 The clamping assembly also includes a support 114 and a cylinder 115 mounted on the support 114, and the sliding plate 107 is connected to the power output end of the cylinder 115. According to the above structure provided in this embodiment, the cylinder 115 can be used to stably drive the sliding plate 107 to move along the radial direction of the hollow shaft 104, and has a good driving effect. At the same time, while the cylinder 115 drives the top plate 108 to press the tube billet, it also has a good vibration absorption effect, which is conducive to reducing the damage to the feeding trolley caused by the impact energy generated by the rolling mill when rolling the tube billet, thereby ensuring the quality of the rolled tube. In addition, the support 114 can ensure that the cylinder 115 can be stably installed on the box body 103, and has a good installation effect.

[0044] In another embodiment of the present application, please refer to Figures 1 to 6 The moving assembly further includes a wear-resistant plate 116 detachably connected to the box body 103, and the box body 103 is slidably connected to the guide rail 102 through the wear-resistant plate 116. According to the above structure provided in this embodiment, the wear-resistant plate 116 can effectively prevent the box body 103 from being worn, thereby increasing the service life of the box body 103. In addition, when the wear-resistant plate 116 is worn to a corresponding degree, it can be quickly replaced, which is beneficial to the service life of the cold rolling mill feeding trolley provided in this embodiment.

[0045] In another embodiment of the present application, please refer to Figures 1 to 6 At least two groups of moving components are provided on opposite sides of the hollow shaft 104. According to the above structure provided in this embodiment, by providing two groups of moving components, the cold rolling mill feeding trolley provided in this embodiment can be stably moved, with good driving effect.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A cold rolling mill feeding trolley, mounted on a bed (101) of the cold rolling mill, wherein the bed (101) is provided with a guide rail (102), characterized in that: include: A box body (103) is slidably connected to the guide rail (102); a hollow shaft (104) is provided on the box body (103) and penetrates the box body (103); the hollow shaft (104) is parallel to the guide rail (102); A moving assembly, comprising a screw rod (105) parallel to the hollow shaft (104) and a nut (106) threadedly connected to the screw rod (105), wherein the nut (106) is connected to the box body (103); The clamping assembly comprises a sliding plate (107) slidably connected to the box body (103) and capable of radially moving along the hollow shaft (104), and a top plate (108) connected to the sliding plate (107), wherein a groove (109) adapted to the tube to be cold-rolled and open on at least one side is formed on the top plate (108), and the opening direction of the groove (109) is the same as the moving direction of the sliding plate (107).

2. The cold rolling mill feeding trolley according to claim 1, characterized in that: The top plate (108) and the sliding plate (107) are stacked and arranged, and the sliding plate (107) has an avoidance groove (110) arranged concentrically with the profile groove (109).

3. The cold rolling mill feeding trolley according to claim 2, characterized in that: The top plate (108) is detachably connected to the sliding plate (107).

4. The cold rolling mill feeding trolley according to claim 1, characterized in that: The clamping assembly also includes a guide block (111); The guide block (111) is connected to the box body (103) and is slidably connected to the sliding plate (107).

5. The cold rolling mill feeding trolley according to claim 4, characterized in that: The guide blocks (111) are arranged on two opposite sides of the sliding plate (107).

6. The cold rolling mill feeding trolley according to claim 1, characterized in that: The clamping assembly further comprises an adjustment flange (112) which is arranged between the box body (103) and the sliding plate (107) and is detachably connected to the box body (103); The sliding plate (107) is slidably connected to the adjusting flange (112) and is slidably connected to the box body (103) via the adjusting flange (112).

7. The cold rolling mill feeding trolley according to claim 6, characterized in that: The clamping assembly also includes a sealing ring (113); The sealing ring (113) is arranged between the adjusting flange (112) and the box body (103) and seals a gap formed between the adjusting flange (112) and the box body (103).

8. The cold rolling mill feeding trolley according to claim 1, characterized in that: The clamping assembly further comprises a support (114) and a cylinder (115) mounted on the support (114); The sliding plate (107) is connected to the power output end of the cylinder (115).

9. The cold rolling mill feeding trolley according to claim 1, characterized in that: The moving assembly further comprises a wear-resistant plate (116) detachably connected to the box body (103); The box body (103) is slidably connected to the guide rail (102) via the wear-resistant plate (116).

10. The cold rolling mill feeding trolley according to claim 1, characterized in that: At least two groups of the moving components are arranged on opposite sides of the hollow shaft (104).

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