Pipe blank feeding trolley of cold pilger mill

Abstract

The utility model relates to the technical field of cold pilger mills, in particular to a pipe blank feeding trolley of a cold pilger mill, which comprises a lathe bed, a lifting frame, an adjusting frame and a pipe blank moving trolley, a driving device used for driving the pipe blank moving trolley to move is arranged on the adjusting frame, and a telescopic cylinder used for lifting of the lifting frame is arranged below the lathe bed. A telescopic cylinder is arranged on the lifting frame, an adjusting frame is arranged on the telescopic cylinder, an angle adjusting assembly used for adjusting the horizontal elevation angle of the adjusting frame is arranged on the lifting frame, and lubricating assemblies used for injecting oil to the surface of a driving lead screw are arranged at the two ends of the pipe blank moving trolley. And through the arranged lubricating assembly, the flexibility of a driving lead screw in the driving device can be guaranteed to a great extent, and the lubricating assembly can achieve cyclic utilization of lubricating oil, so that the service life of the device is prolonged, and meanwhile excessive use of the lubricating oil is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cold rolling mill technology, specifically to the billet feeding trolley of a cold rolling mill. Background Technology

[0002] The working principle of a cold rolling mill is to change the size, shape and mechanical properties of a tube by cold rolling a hot-rolled tube or hot-rolled coil. The specific process includes steps such as raw material preparation, heating, pre-bending, cold rolling, tube removal, inspection and trimming, testing and packaging. Through these steps, cold-rolled tubes with certain performance and precision requirements can be produced.

[0003] For example, the billet feeding rotary mechanism disclosed in patent publication number CN221790565U is used in cold rolling mills. It installs the rotary motor and rotary speed change mechanism on the billet feeding trolley, which not only eliminates the need for easily damaged parts such as drive shafts and sliding keys, saving costs, but also greatly improves the reliability of the rotary action of cold rolling mills and greatly reduces rotational inertia.

[0004] While the existing technologies described above can significantly improve the reliability of the rotation of cold rolling mills, the feeding trolley for conveying tube blanks is not easy to adjust in terms of height and horizontal elevation angle, thus hindering the improvement of the accuracy of tube blank feeding into the cold rolling mill. Furthermore, the transmission accuracy of the drive screw in the drive device will be greatly reduced after long-term use, and increasing lubrication usually requires manual application of lubricating oil, which is time-consuming, laborious, and inefficient.

[0005] Therefore, we propose a method for feeding tube blanks into a trolley during a cold rolling mill. Utility Model Content

[0006] One of the technical problems to be solved by this application is: to be able to adjust the height and horizontal elevation angle of the billet moving trolley, and at the same time automatically lubricate the drive screw, thereby improving the stability of the drive screw in transporting the billet moving trolley.

[0007] To address the aforementioned technical problems, this application provides a billet feeding trolley for a cold rolling mill, comprising a bed, a lifting frame, an adjusting frame, and a billet moving trolley. The billet moving trolley is equipped with a clamping mechanism and a hydraulic transmission mechanism. The adjusting frame is equipped with a drive device for moving the billet moving trolley, and the drive device contains a drive screw. The lifting frame is located above the bed, and the adjusting frame is located on the lifting frame. A telescopic cylinder for raising and lowering the lifting frame is located below the bed. The lifting frame is equipped with an angle adjustment component for adjusting the horizontal elevation angle of the adjusting frame. Both ends of the billet moving trolley are equipped with lubrication components for injecting oil onto the surface of the drive screw.

[0008] In some embodiments, in order to enable clamping of the tube blank, the hydraulic transmission mechanism is used to drive the clamping mechanism to clamp and hold the tube blank.

[0009] In some embodiments, in order to fix and limit the telescopic cylinder, a support plate is fixedly installed under the bed by a mounting rod, the telescopic cylinder is distributed and fixedly installed on the support plate, and the output end of the telescopic cylinder passes through the bed and is fixedly connected to the lifting frame.

[0010] In some embodiments, in order to limit the lifting of the lifting frame, guide rods are fixedly installed on the upper surface of the bed, the free end of the guide rods passes through the lifting frame, and the telescopic cylinder is a telescopic hydraulic cylinder or a telescopic pneumatic cylinder.

[0011] In some embodiments, in order to support the adjustment frame, the angle adjustment assembly includes a bracket, which is fixedly installed at the center of the surface of the lifting frame. A support rod is fixedly installed inside the bracket. A support hole is opened inside the adjustment frame, and the support rod is inserted into the support hole. One end of the adjustment frame has symmetrical adjustment holes, and a gear frame is fixedly installed inside the adjustment holes. The adjustment assembly also includes a drive gear, which is rotatably installed inside the gear frame.

[0012] In some embodiments, in order to achieve the purpose of adjusting the angle of the adjusting frame by rotating the hub motor to engage the drive gear with the arc-shaped rack, the hub motor is fixedly installed inside the drive gear, and the two ends of the hub motor are fixedly connected to the gear frame. The arc-shaped rack is symmetrically fixedly installed on the lifting frame, and the upper end of the arc-shaped rack passes through the adjusting hole. The drive gear and the arc-shaped rack mesh with each other for transmission.

[0013] In some embodiments, to facilitate lubrication of the drive screw, the drive screw and the screw hole are rotated and meshed with each other. The billet moving trolley has symmetrically opened screw lubrication holes inside. The front end of the screw lubrication hole is the screw hole, and the rear end of the screw lubrication hole is the lubrication hole. The lubrication assembly includes an oil outlet tank and an oil return tank. The oil outlet tank is located at both ends of the upper surface of the billet moving trolley, and the oil return tank is located on the outer walls of both sides of the billet moving trolley.

[0014] In some embodiments, in order to enable the reciprocating circulation of lubricating oil through the oil outlet pump and the oil return pump, an oil outlet pump is provided in the oil outlet tank. The oil outlet end of the oil outlet pump is connected to an oil outlet pipe, one end of which extends to the upper part of the oil filling hole. An oil return pump is provided in the oil return tank. The oil inlet end of the oil return pump is connected to an oil return pipe, one end of which extends to the lower part of the oil filling hole. The oil outlet end of the oil return pump is connected to a circulation oil pipe, and the free end of the circulation oil pipe is connected to the oil outlet tank.

[0015] This utility model has at least the following beneficial effects: The device, through the telescopic cylinder and angle adjustment component, can adjust the height and horizontal elevation angle of the billet moving trolley, thereby improving the accuracy of feeding the billet into the cold rolling mill and enhancing the practicality of the device. The lubrication component greatly ensures the flexibility of the drive screw in the drive device, and the lubrication component can recycle the lubricating oil, thereby improving the service life of the device and avoiding excessive use of lubricating oil. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the position of the adjustment hole in this utility model;

[0018] Figure 3 This is a schematic diagram showing the position of the telescopic cylinder of this utility model;

[0019] Figure 4 This is a schematic diagram showing the location of the oil injection hole in the lead screw of this utility model;

[0020] Figure 5 This is a schematic diagram of the angle adjustment component of this utility model;

[0021] Figure 6 This is a schematic diagram of the shape and structure of the lead screw oil injection hole of this utility model;

[0022] Figure 7 This is a schematic diagram of the lubrication assembly of this utility model;

[0023] Figure 8 for Figure 2 Enlarged view of the structure at point A in the middle.

[0024] In the diagram: 1. Bed; 2. Lifting frame; 3. Adjusting frame; 4. Billet moving trolley; 5. Clamping mechanism; 6. Hydraulic transmission mechanism; 7. Drive device; 701. Drive screw; 8. Telescopic cylinder; 9. Angle adjustment assembly; 901. Bracket; 902. Support rod; 903. Gear frame; 904. Drive gear; 905. Hub motor; 906. Arc rack; 10. Lubrication assembly; 1001. Oil outlet tank; 1002. Oil return tank; 1003. Oil outlet pump; 1004. Oil outlet pipe; 1005. Oil return pump; 1006. Oil return pipe; 1007. Circulating oil pipe; 11. Mounting rod; 12. Support plate; 13. Guide rod; 14. Support hole; 15. Adjusting hole; 16. Screw oil injection hole; 1601. Screw hole; 1602. Oil injection hole. 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] Example 1: Please refer to Figures 1-8 This utility model provides a technical solution: a billet feeding trolley for a cold rolling mill includes a bed 1, a lifting frame 2, an adjusting frame 3, and a billet moving trolley 4. The billet moving trolley 4 is equipped with a clamping mechanism 5 and a hydraulic transmission mechanism 6. The adjusting frame 3 is equipped with a driving device 7 for moving the billet moving trolley 4. The driving device 7 is equipped with a driving screw 701. The lifting frame 2 is located above the bed 1, and the adjusting frame 3 is located on the lifting frame 2. A telescopic cylinder 8 for lifting the lifting frame 2 is located below the bed 1. The lifting frame 2 is equipped with an angle adjustment component 9 for adjusting the horizontal elevation angle of the adjusting frame 3. Both ends of the billet moving trolley 4 are equipped with lubrication components 10 for injecting oil onto the surface of the driving screw 701. The hydraulic transmission mechanism 6 is used to drive the clamping mechanism 5 to clamp and hold the billet. The clamping mechanism 5 and the hydraulic transmission mechanism 6 provided in this device are common existing technologies in the market, so their structure is not described in this device.

[0027] Example 2: As Figure 3As shown, a support plate 12 is fixedly installed under the bed 1 via a mounting rod 11. Telescopic cylinders 8 are distributed and fixedly installed on the support plate 12. The output end of the telescopic cylinder 8 passes through the bed 1 and is fixedly connected to the lifting frame 2. Guide rods 13 are distributed and fixedly installed on the upper surface of the bed 1. The free end of the guide rod 13 passes through the lifting frame 2. The telescopic cylinder 8 is a telescopic hydraulic cylinder or a telescopic pneumatic cylinder. The opening of the telescopic cylinder 8 is controlled by an external controller. The opening of the telescopic cylinder 8 enables the lifting frame 2 to drive the billet moving trolley 4 to adjust its height. This facilitates the precise docking of the billet with the cold rolling mill when the billet is clamped in the billet moving trolley 4.

[0028] Example 3: As Figure 5 As shown, the angle adjustment assembly 9 includes a bracket 901, which is fixedly installed at the center of the surface of the lifting frame 2. A support rod 902 is fixedly installed inside the bracket 901. A support hole 14 is opened inside the adjustment frame 3, and the support rod 902 is inserted into the support hole 14. An adjustment hole 15 is symmetrically opened at one end of the adjustment frame 3. A gear frame 903 is fixedly installed inside the adjustment hole 15. The adjustment assembly also includes a drive gear 904, which is rotatably installed inside the gear frame 903. When the horizontal elevation angle of the adjustment frame 3 is adjusted by the angle adjustment assembly 9, the support rod 902 can support the adjustment frame 3. At the same time, the gear frame 903 can limit the drive gear 904. The gear frame 903 is fixed inside the adjustment hole 15 by a screw.

[0029] A hub motor 905 is fixedly installed inside the drive gear 904. Both ends of the hub motor 905 are fixedly connected to the gear carrier 903. An arc-shaped rack 906 is symmetrically fixedly installed on the lifting frame 2. The upper end of the arc-shaped rack 906 passes through the adjustment hole 15. The drive gear 904 and the arc-shaped rack 906 mesh and transmit power. It should be noted that the arc-shaped rack 906 is fixedly installed inside the lifting frame 2 by a screw. Turning on the hub motor 905 drives the drive gear 904 to rotate. It can mesh with the arc-shaped rack 906. The hub motor 905 is a zero-power self-locking hub motor 905. The zero-power self-locking hub motor 905 maintains a self-locking state after the motor is turned off through the high impedance of the gate of the V-groove MOS transistor through the internal circuit. This allows the adjusting frame 3 to rotate circumferentially around the axis of the support rod 902. In turn, the adjusting frame 3 can adjust the horizontal elevation angle of the billet moving carriage 4, thereby adjusting the angle of the billet clamped in the billet moving carriage 4, and thus improving the accuracy of the billet being fed into the billet by the billet moving carriage 4.

[0030] Example 4: Figure 7As shown, the billet moving trolley 4 has symmetrically arranged screw oil injection holes 16 inside. The front end of the screw oil injection hole 16 is the screw hole 1601, and the rear end of the screw oil injection hole 16 is the oil injection hole 1602. Through the design that the front end of the screw oil injection hole 16 is the screw hole 1601 and the rear end is the oil injection hole 1602, it can mesh with the drive screw 701 through the screw hole 1601, thereby driving the billet moving trolley 4.

[0031] Lubrication assembly 10 includes an oil outlet tank 1001 and an oil return tank 1002. The oil outlet tank 1001 is located at both ends of the upper surface of the billet moving trolley 4, and the oil return tank 1002 is located on the outer walls of both sides of the billet moving trolley 4. An oil outlet pump 1003 is installed inside the oil outlet tank 1001, and the oil outlet end of the oil outlet pump 1003 is connected to an oil outlet pipe 1004. One end of the oil outlet pipe 1004 extends to the upper part of the oil injection hole 1602. An oil return pump 1005 is installed inside the oil return tank 1002, and the oil inlet end of the oil return pump 1005 is connected to an oil return pipe 1006. One end of the oil return pipe 1006 extends to the lower part of the oil injection hole 1602, and the oil outlet end of the oil return pump 1005 is connected to... A circulation oil pipe 1007 is provided, with its free end connected to the oil outlet tank 1001. The oil outlet pump 1003 can inject the lubricating oil in the oil outlet tank 1001 into the oil filling hole 1602 through the oil outlet pipe 1004, thereby lubricating the drive screw 701. When the lubricating oil drips onto the surface of the drive screw 701, it can move downwards along the surface of the drive screw 701 due to gravity. By turning on the return oil pump 1005, the dripping lubricating oil can be sucked into the return oil pump 1005 and then fed into the oil outlet tank 1001 through the circulation oil pipe 1007, thus realizing the recycling of the lubricating oil.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A billet feeding trolley for a cold rolling mill, comprising a bed (1), a lifting frame (2), an adjusting frame (3), and a billet moving trolley (4), wherein the billet moving trolley (4) is provided with a clamping mechanism (5) and a hydraulic transmission mechanism (6), and the adjusting frame (3) is provided with a driving device (7) for driving the billet moving trolley (4) to move, wherein the driving device (7) is provided with a driving screw (701), characterized in that: The lifting frame (2) is located above the bed (1), the adjusting frame (3) is located on the lifting frame (2), a telescopic cylinder (8) for lifting the lifting frame (2) is located below the bed (1), an angle adjusting component (9) for adjusting the horizontal elevation angle of the adjusting frame (3) is located on the lifting frame (2), and lubrication components (10) for injecting oil onto the surface of the drive screw (701) are located at both ends of the billet moving trolley (4).

2. The billet feeding trolley of the cold rolling mill according to claim 1, characterized in that: The hydraulic transmission mechanism (6) is used to drive the clamping mechanism (5) to clamp the tube blank.

3. The billet feeding trolley of the cold rolling mill according to claim 2, characterized in that: A support plate (12) is fixedly installed below the bed (1) by a mounting rod (11). The telescopic cylinders (8) are distributed and fixedly installed on the support plate (12). The output end of the telescopic cylinder (8) passes through the bed (1) and is fixedly connected to the lifting frame (2).

4. The billet feeding trolley of the cold rolling mill according to claim 3, characterized in that: Guide rods (13) are fixedly installed on the upper surface of the bed (1). The free end of the guide rod (13) passes through the lifting frame (2). The telescopic cylinder (8) is a telescopic hydraulic cylinder or a telescopic air cylinder.

5. The billet feeding trolley of the cold rolling mill according to claim 1, characterized in that: The angle adjustment assembly (9) includes a bracket (901), which is fixedly installed at the middle position of the surface of the lifting frame (2). A support rod (902) is fixedly installed inside the bracket (901). A support hole (14) is opened inside the adjustment frame (3), and the support rod (902) is inserted into the support hole (14). An adjustment hole (15) is symmetrically opened at one end of the adjustment frame (3). A gear frame (903) is fixedly installed inside the adjustment hole (15). The adjustment assembly also includes a drive gear (904), which is rotatably installed inside the gear frame (903).

6. The billet feeding trolley of the cold rolling mill according to claim 5, characterized in that: A hub motor (905) is fixedly installed inside the drive gear (904). The two ends of the hub motor (905) are fixedly connected to the gear frame (903). An arc rack (906) is symmetrically fixedly installed on the lifting frame (2). The upper end of the arc rack (906) passes through the adjustment hole (15). The drive gear (904) and the arc rack (906) mesh and transmit power to each other.

7. The billet feeding trolley of the cold rolling mill according to claim 1, characterized in that: The tube blank moving trolley (4) has symmetrically opened screw oil injection holes (16) inside. The front end of the screw oil injection hole (16) is the screw hole (1601), and the rear end of the screw oil injection hole (16) is the oil injection hole (1602). The lubrication assembly (10) includes an oil outlet tank (1001) and an oil return tank (1002). The oil outlet tank (1001) is located at both ends of the upper surface of the tube blank moving trolley (4), and the oil return tank (1002) is located on the outer walls of both sides of the tube blank moving trolley (4).

8. The billet feeding trolley of the cold rolling mill according to claim 7, characterized in that: An oil pump (1003) is installed inside the oil outlet tank (1001). The oil outlet end of the oil pump (1003) is connected to an oil outlet pipe (1004). One end of the oil outlet pipe (1004) extends to the upper part of the oil injection hole (1602). An oil return pump (1005) is installed inside the oil return tank (1002). The oil inlet end of the oil return pump (1005) is connected to an oil return pipe (1006). One end of the oil return pipe (1006) extends to the lower part of the oil injection hole (1602). The oil outlet end of the oil return pump (1005) is connected to a circulating oil pipe (1007). The free end of the circulating oil pipe (1007) is connected to the oil outlet tank (1001).

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