Locking device for straightening roll

Abstract

The utility model discloses a locking device for a straightening roll, which relates to the technical field of steel pipe straightening, and comprises a rack, a support body, a straightening roll and a plurality of locking devices, and the support body is rotatably connected with the rack and can be kept at a post-rotation position; the straightening rollers are arranged on the top of the supporting body and rotationally connected with the supporting body. One end of the locking device is fixedly connected with the rack, the other end of the locking device is used for abutting against the supporting body, the structure is simple, use is convenient, the angle of the straightening roller can be adjusted, and the straightening roller of the steel pipe straightening machine can be firmly fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe straightening, in particular to a locking device for a straightening roller. Background Art

[0002] At present, the pre-finishing area of ​​the production line of steel pipe production enterprises is equipped with a straightening machine, whose main function is to straighten the steel pipes after rolling and forming so that their straightness meets the standard, thereby meeting the customer's requirements. The straightening roller needs to adjust the angle according to different specifications. After the adjustment is completed according to different specifications, it needs to be reliably fixed, and the angle is not allowed to change, so as to achieve effective contact with the steel pipe. In the actual production process, it often happens that the fixation of the straightening roller is unreliable and the angle of the straightening roller changes unintentionally, resulting in the straightness of the steel pipe that has completed the straightening process not meeting the standard, and cannot meet the customer's requirements, affecting the brand image of the steel pipe, and then affecting the sales of seamless steel pipes of the steel pipe company. Utility Model Content

[0003] The purpose of the utility model is to provide a locking device for straightening rollers to solve the problems existing in the above-mentioned prior art. The utility model has a simple structure and is easy to use. The angle of the straightening rollers can be adjusted and the straightening rollers of the steel pipe straightening machine can be securely fixed.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a locking device for a straightening roller, comprising: a frame, a support body, a straightening roller and a plurality of locking devices, wherein the support body is rotatably connected to the frame and can maintain a position after rotation; the straightening roller is arranged on the top of the support body and is rotatably connected to the support body; one end of the locking device is fixedly connected to the frame, and the other end is used for pressing against the support body.

[0006] Preferably, the locking device comprises a hydraulic cylinder, the hydraulic cylinder is distributed along the circumference of the support body, the cylinder body of the hydraulic cylinder is fixedly connected to the frame, and the piston rod of the hydraulic cylinder is used to press against the support body.

[0007] Preferably, a liquid inlet and outlet are provided on a side of the cylinder body away from the support body, and the liquid inlet and outlet are used to be connected and communicated with the power device.

[0008] Preferably, the locking device further comprises an elastic member, which is arranged in the cylinder body, and one end of the elastic member is fixedly connected to an end of the cylinder body away from the liquid inlet and outlet, and the other end is fixedly connected to the piston of the piston rod.

[0009] Preferably, it further comprises a shaft sleeve, which is fixedly connected to the top of the frame and is sleeved on the outer side of the support body.

[0010] Preferably, it further comprises a rotating bearing, the outer ring of the rotating bearing is fixedly connected to the bottom of the frame, and the bottom of the support body is fixedly connected to the inner ring of the rotating bearing.

[0011] Preferably, it also includes a sealing ring, the support body includes a support plate and a support column, the top of the support column is integrally connected to the middle of the support plate, the support column is used to be sleeved on the shaft sleeve, the bottom of the support column is used to be fixedly connected to the inner ring of the rotating bearing, the top of the sealing ring abuts against the bottom of the support plate, and the bottom of the sealing ring is fixedly connected to the frame to seal the space between the support plate and the frame.

[0012] Preferably, it further comprises a bearing seat, and the straightening roller is rotatably connected to the support body via the bearing seat.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] The utility model provides a locking device for a straightening roller, which is rotatably connected to the top of a support body, and the support body is rotated to make the straightening roller meet the angle requirement of the straightening roller when working. The support body is locked by multiple locking devices, so that the angle of the straightening roller can be adjusted, and the straightening roller of the steel pipe straightening machine can be firmly fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the structure of a locking device for a straightening roller provided by the utility model;

[0017] In the figure: 1. frame; 2. support body; 3. bearing seat; 4. straightening roller; 5. bushing; 6. sealing body; 7. liquid inlet and outlet; 8. piston rod; 9. rotating bearing; 10. spring; 11. hydraulic cylinder. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The purpose of the utility model is to provide a locking device for straightening rollers to solve the problems existing in the above-mentioned prior art. The utility model has a simple structure and is easy to use. The angle of the straightening rollers can be adjusted and the straightening rollers of the steel pipe straightening machine can be securely fixed.

[0020] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Embodiment 1

[0022] This embodiment provides a locking device for the straightening roller 4, such as Figure 1 As shown, it includes: a frame 1, a support body 2, a straightening roller 4 and a plurality of locking devices, the support body 2 is rotatably connected to the frame 1 and can maintain the position after rotation; the straightening roller 4 is arranged on the top of the support body 2 and is rotatably connected to the support body 2; one end of the locking device is fixedly connected to the frame 1, and the other end is used to press against the support body 2, and the straightening roller 4 is rotatably connected to the top of the support body 2, and the support body 2 is rotated to make the straightening roller 4 meet the angle requirement of the straightening roller 4 when working, and the support body 2 is locked by a plurality of locking devices, so that the angle of the straightening roller 4 can be adjusted, and the straightening roller 4 of the steel pipe straightening machine can be securely fixed.

[0023] In a preferred embodiment, the locking device includes a hydraulic cylinder 11, which is distributed along the circumference of the support body 2. The cylinder body of the hydraulic cylinder 11 is fixedly connected to the frame 1. The piston rod 8 of the hydraulic cylinder 11 is used to tighten the support body 2. It has a simple structure and is easy to use, and can tighten the support body 2.

[0024] In a preferred embodiment, a liquid inlet and outlet 7 is provided on the side of the cylinder body away from the support body 2. The liquid inlet and outlet 7 is used to connect and communicate with the power device. The structure is simple, and the power device is used to control the output or withdrawal of the liquid in the cylinder body to complete the extension and tightening of the piston rod 8.

[0025] In a preferred embodiment, the locking device also includes an elastic member, which is arranged in the cylinder body, and one end of the elastic member is fixedly connected to the end of the cylinder body away from the liquid inlet and outlet 7, and the other end is fixedly connected to the piston of the piston rod 8. The elastic member is a spring 10, and the spring 10 is mainly used to reset the piston rod 8. In addition, the spring 10 also has a buffering function to prevent the piston rod 8 from causing a large impact on the support body 2.

[0026] In a preferred embodiment, the locking device for the straightening roller 4 also includes a sleeve 5, which is fixedly connected to the top of the frame 1 and is sleeved on the outside of the support body 2. The locking device for the straightening roller 4 also includes a rotating bearing 9, the outer ring of the rotating bearing 9 is fixedly connected to the bottom of the frame 1, and the bottom of the support body 2 is fixedly connected to the inner ring of the rotating bearing 9. The sleeve 5 and the rotating bearing 9 position the support body 22 and support it to complete the rotation function.

[0027] In a preferred embodiment, the locking device for the straightening roller 4 also includes a sealing ring 6, the support body 2 includes a support plate and a support column, the top of the support column is integrally connected to the middle of the support plate, the support column is used to be sleeved on the shaft sleeve 5, and the bottom of the support column is used to be fixedly connected to the inner ring of the rotating bearing 9, the top of the sealing ring 6 abuts against the bottom of the support plate, and the bottom of the sealing ring 6 is fixedly connected to the frame 1 to seal the space between the support plate and the frame 1, and the sealing ring 6 is used to prevent dust and the like from entering the gap between the support body 2 and the shaft sleeve 5 to affect the rotation of the support body 2.

[0028] In a preferred embodiment, the locking device for the straightening roller 4 further includes a bearing seat 3, and the straightening roller 4 is rotatably connected to the support body 2 via the bearing seat 3.

[0029] Embodiment 2

[0030] This embodiment also provides a method for using the locking device for the straightening roller 4 of the first embodiment, comprising the following steps:

[0031] The straightening roller 4 is installed on the bearing seat 3, and the bearing seat 3 is fixed above the support body 2. The support body 2 is inserted into the inner hole of the sleeve 5 and the rotating bearing 9. The sleeve 5 and the rotating bearing 9 are fixed inside the frame 11. The hydraulic cylinder 11 is fixed to the side of the frame 1, and the piston rod 8 is reliably in contact with the lower part of the support body 2 after being extended. The hydraulic cylinder 11 has a spring 10 built in. When the straightening roller 4 needs to be reliably locked during production, the pressure oil enters the hydraulic cylinder 11 from the joint, and the piston rod 8 extends to press the support body 2. When the angle of the straightening roller 4 needs to be adjusted, the pressure oil is released, and the hydraulic lever is reset by the spring 10, so that the front end of the hydraulic lever is completely separated from the support body 2, which is convenient for adjusting the angle of the straightening roller 4.

[0032] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A locking device for a straightening roller, characterized in that: include: frame, A support body, the support body is rotatably connected to the frame and can maintain a position after rotation; A straightening roller, which is arranged on the top of the support body and is rotatably connected to the support body; A plurality of locking devices, one end of each locking device is fixedly connected to the frame, and the other end is used to tighten against the support body.

2. The locking device for straightening rollers according to claim 1, characterized in that: The locking device comprises a hydraulic cylinder, which is distributed along the circumference of the support body. The cylinder body of the hydraulic cylinder is fixedly connected to the frame, and the piston rod of the hydraulic cylinder is used to press against the support body.

3. The locking device for straightening rollers according to claim 2, characterized in that: A liquid inlet and outlet are arranged on a side of the cylinder away from the support body, and the liquid inlet and outlet are used to be connected and communicated with a power device.

4. The locking device for straightening rollers according to claim 3, characterized in that: The locking device also includes an elastic member, which is arranged in the cylinder body, and one end of the elastic member is fixedly connected to an end of the cylinder body away from the liquid inlet and outlet, and the other end is fixedly connected to the piston of the piston rod.

5. The locking device for straightening rollers according to claim 1, characterized in that: It also includes a shaft sleeve, which is fixedly connected to the top of the frame and is sleeved on the outer side of the support body.

6. The locking device for straightening rollers according to claim 5, characterized in that: It also includes a rotating bearing, the outer ring of which is fixedly connected to the bottom of the frame, and the bottom of the support body is fixedly connected to the inner ring of the rotating bearing.

7. The locking device for straightening rollers according to claim 6, characterized in that: It also includes a sealing ring, the support body includes a support plate and a support column, the top of the support column is integrally connected to the middle of the support plate, the support column is used to be sleeved on the shaft sleeve, the bottom of the support column is used to be fixedly connected to the inner ring of the rotating bearing, the top of the sealing ring abuts against the bottom of the support plate, and the bottom of the sealing ring is fixedly connected to the frame to seal the space between the support plate and the frame.

8. The locking device for straightening rollers according to claim 1, characterized in that: It also includes a bearing seat, and the straightening roller is rotatably connected to the support body through the bearing seat.

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