Eccentricity measuring device for forged steel roller step shaft

Abstract

The utility model discloses an eccentricity measuring device for a forged steel roller step shaft, and belongs to the technical field of roller measurement. Comprising bases arranged in a front-back corresponding mode, annular supports arranged on the two bases and located on the same axis, a reference rod with the front end and the rear end connected with the inner walls of the two annular supports through displacement components, and a plurality of distance measuring components arranged in the length direction of the inner side wall of the reference rod in a sliding mode. Wherein the number of the distance measuring parts is matched with the number of forged steel roller step shafts, and a control mechanism for driving the reference rod to circumferentially move along the inner walls of the two annular supports under the action of the displacement parts is arranged between at least one end of the reference rod and the annular support corresponding to the reference rod in a matched mode. The device can improve the measurement efficiency and accuracy, and is of great significance for improving the roller production quality and reducing the rejection rate.

Description

Technical Field

[0001] This utility model belongs to the field of roll measurement technology, specifically relating to an eccentricity measuring device for a stepped shaft of a forged steel roll. Background Technology

[0002] In the production process of forged steel rolls, stepped shafts are a common roll design, with multiple steps undertaking different rolling tasks. To ensure the processing quality of the finished rolls, the stepped shafts of the forged steel rolls after exiting the furnace must undergo rigorous geometric shape inspection, especially the measurement of bending and eccentric defects of each step.

[0003] Currently, the measurement of bending and eccentricity defects in the stepped shaft of forged steel rolls mainly relies on manual scribing. This process requires operators to manually rotate the roll on a specialized scribing platform and use a scribing tool to draw reference lines on the roll surface to determine the roll's axis position. To measure the eccentricity or bending of each step, the operator needs to measure the distance between the outer circle of each step and the axis line, based on the scribed axis line. However, this method has many inconveniences in actual operation. First, the manual scribing process is time-consuming and labor-intensive, requiring operators to possess certain skills and experience. The entire measurement process is also cumbersome and often takes a long time to complete, which undoubtedly reduces production efficiency. Second, the manual scribing method has limitations in accuracy. Due to the influence of human factors, the scribing accuracy is difficult to guarantee, thus affecting the accuracy of the measurement results.

[0004] In summary, existing methods for measuring the stepped shaft of forged steel rolls are inadequate in terms of ease of operation, measurement accuracy, and adaptability. Therefore, there is a need for an eccentricity measuring device for the stepped shaft of forged steel rolls that is easy to operate and can improve measurement efficiency and accuracy. Utility Model Content

[0005] The purpose of this invention is to provide an eccentricity measuring device for the stepped shaft of a forged steel roll, which is easy to operate and can improve measurement efficiency and accuracy.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An eccentricity measuring device for a forged steel roll stepped shaft includes a base arranged at the front and rear, an annular brackets respectively arranged on the two bases and on the same axis, a reference rod whose front and rear ends are respectively connected to the inner walls of the two annular brackets through displacement components, and a plurality of distance measuring components slidably arranged along the length direction of the inner sidewall of the reference rod. The number of distance measuring components is adapted to the number of forged steel roll stepped shafts. At least one end of the reference rod and its corresponding annular bracket are equipped with a control mechanism that drives the reference rod to move circumferentially along the inner wall of the two annular brackets under the action of the displacement components.

[0008] A further improvement of the present invention is that the displacement component includes a slide rail circumferentially disposed on the inner wall of the annular support and a slider whose one end is slidably connected to the slide rail and whose other end is connected to the outer wall of the reference rod.

[0009] A further improvement of the present invention is that the control mechanism includes a motor connected at one end to the end of a reference rod and a transmission shaft at the other end, a gear connected to the motor via the transmission shaft, and a rack located on one side of a slide rail and circumferentially arranged on the inner wall of an annular bracket, wherein the rack meshes with the gear.

[0010] A further improvement of the present invention is that: a slide rail 2 is provided on the inner side wall of the reference rod along its length direction; the ranging component includes a laser rangefinder that is slidably connected to the slide rail 2 via a slider 2, and a positioning bolt is provided on the slider 2 that passes through its top and is threadedly connected to its top.

[0011] A further improvement of this utility model is that stop plates are provided at both ends of the slide rail two.

[0012] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0013] This utility model relates to an eccentricity measuring device for the stepped shaft of forged steel rolls. It is easy to operate and can improve measurement efficiency and accuracy, which is of great significance for improving the production quality of rolls and reducing the scrap rate.

[0014] This invention employs two annular supports on the same axis, a reference rod whose front and rear ends are connected to the inner walls of the two annular supports via displacement components, a control mechanism that drives the reference rod to move circumferentially along the inner walls of the two annular supports under the action of the displacement components, and several ranging components slidably disposed on the inner sidewall of the reference rod. Each ranging component can be moved and adjusted on the reference rod to the corresponding forging steel roll step shaft and located radially on the step shaft. The control mechanism can drive the reference rod to move circumferentially along the inner walls of the two annular supports under the action of the displacement components, thereby causing each ranging component on the inner sidewall of the reference rod to move circumferentially, completing the eccentric measurement of each step shaft on the forging steel roll from multiple directions, effectively improving measurement efficiency and accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the eccentricity measuring device of this utility model;

[0016] Figure 2 This is an assembly diagram of the distance measuring component, reference rod, control mechanism, and displacement component in the eccentricity measuring device of this utility model;

[0017] The components are: 1. base, 2. ring bracket, 3. reference rod, 4. slide rail one, 5. slider one, 6. positioning bolt, 7. motor, 8. gear, 9. rack, 10. laser rangefinder, 11. slide rail two, 12. slider two, 13. stop plate. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments:

[0019] like Figure 1 As shown and Figure 2 As shown, this utility model provides an eccentricity measuring device for the stepped shaft of a forged steel roll, including two bases 1, two annular supports 2, a reference rod 3, two displacement components, several distance measuring components, and a control mechanism. The two bases 1 are arranged correspondingly front to back, and the two annular supports 2 are respectively mounted on the two bases 1, with the two annular supports 2 on the same axis, i.e., opposite to each other. This ensures that during measurement, the two annular supports 2 can be located at the front and rear ends of the forged steel roll, guaranteeing that the same axis of the two annular supports 2 is the axis of the forged steel roll. The front and rear ends of the reference rod 3 are connected to the inner walls of the two annular supports 2 via displacement components, allowing the reference rod 3 to move circumferentially along the inner walls of the two annular supports 2. Specifically, the front and rear ends of the outer wall of the reference rod 3 are connected to the inner walls of the two annular supports 2 via displacement components. The "outer wall of the reference rod 3" refers to the side wall of the reference rod 3 closest to the inner wall of the annular support 2. Several ranging components are slidably arranged along the length of the inner wall of the reference rod 3, and the number of ranging components is appropriate to the number of forged steel roll step shafts. The "inner wall of the reference rod 3" refers to the side wall of the reference rod 3 away from the inner wall of the annular support 2. During measurement, each ranging component arranged on the inner wall of the reference rod 3 can be moved and adjusted to its corresponding forged steel roll step shaft and positioned radially on that step shaft. At least one end of the reference rod 3 is fitted with a control mechanism that cooperates with its corresponding annular support 2. That is, a control mechanism is fitted between the front end, rear end, or both ends of the reference rod 3 and its corresponding annular support 2. The control mechanism can drive the reference rod 3 to move circumferentially along the inner walls of the two annular supports 2 under the action of the displacement components, thereby causing the various ranging components on the inner wall of the reference rod 3 to move circumferentially.

[0020] When it is necessary to measure the eccentricity of the stepped shaft of a forged steel roll, the forged steel roll can be transported between two annular supports 2, so that the axis of the two annular supports 2 coincides with the axis of the forged steel roll. Then, adjust the various measuring components on the inner wall of the reference rod 3, so that they are moved to the corresponding stepped shaft of the forged steel roll and located in the radial direction of the stepped shaft. Start the control mechanism to drive the reference rod 3 to move circumferentially along the inner wall of the two annular supports 2 under the action of the displacement component, so that the various measuring components on the inner wall of the reference rod 3 move circumferentially, and complete the eccentricity measurement of each stepped shaft on the forged steel roll from multiple directions. The operation is convenient and can improve the measurement efficiency and accuracy, which is of great significance for improving the production quality of rolls and reducing the scrap rate.

[0021] Specifically, the displacement components include a slide rail 4 and a slider 5. The slide rail 4 is circumferentially arranged on the inner wall of the annular support 2, that is, the slide rail 4 is an annular structure adapted to the inner wall of the annular support 2. One end of the slider 5 is slidably connected to the slide rail 4, and the other end is connected to the outer wall of the reference rod 3, so that the reference rod 3 can move circumferentially on the slide rail 4 on the inner wall of the annular support 2 via the slider 5.

[0022] The control mechanism includes a motor 7, a gear 8, and a rack 9. One end of the motor 7 is connected to the end of the reference rod 3, and the other end is provided with a drive shaft. The gear 8 is connected to the motor 7 through the drive shaft. The rack 9 is circumferentially arranged on the inner wall of the annular bracket 2, that is, the rack 9 is an annular structure adapted to the inner wall of the annular bracket 2. The rack 9 is located on one side of the slide rail 4 and cooperates with the slide rail 4. The rack 9 meshes with the gear 8. When the motor 7 is started, the motor 7 drives the gear 8 to move circumferentially on the annular rack 9. Under the drive of the gear 8, the reference rod 3 can move circumferentially on the slide rail 4 on the inner wall of the annular bracket 2.

[0023] Furthermore, a slide rail 2 11 is provided along the length of the inner wall of the reference rod 3. The ranging component includes a laser rangefinder 10, which is slidably connected to the slide rail 2 11 via a slider 2 12. This allows the laser rangefinder 10 to move and adjust on the slide rail 2 11 on the inner wall of the reference rod 3 via the slider 2 12. To position the adjusted laser rangefinder 10 and prevent displacement during measurement that could cause errors, a positioning bolt 6 is provided on the slider 2 12, penetrating its top. The positioning bolt 6 is threadedly connected to the top of the slider 2 12. After the laser rangefinder 10 is adjusted, the positioning bolt 6 can be tightened so that it penetrates the top of the slider 2 12 and abuts against the slide rail 2 11. To prevent the slider 2 12 from derailing, stop plates 13 are provided at both ends of the slide rail 2 11.

[0024] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An eccentricity measuring device for a forged steel roll stepped shaft, characterized in that: The system includes a base (1) with corresponding front and rear sides, annular brackets (2) respectively set on the two bases (1) and on the same axis, a reference rod (3) with its front and rear ends respectively connected to the inner walls of the two annular brackets (2) through displacement components, and several ranging components that slide along the length of the inner side wall of the reference rod (3). The number of ranging components is adapted to the number of forged steel roll step shafts. At least one end of the reference rod (3) and its corresponding annular bracket (2) are equipped with a control mechanism that drives the reference rod (3) to move circumferentially along the inner wall of the two annular brackets (2) under the action of the displacement components.

2. The eccentricity measuring device for a forged steel roll stepped shaft according to claim 1, characterized in that: The displacement component includes a slide rail (4) circumferentially mounted on the inner wall of the annular support (2) and a slider (5) with one end slidably connected to the slide rail (4) and the other end connected to the outer wall of the reference rod (3).

3. The eccentricity measuring device for a forged steel roll stepped shaft according to claim 2, characterized in that: The control mechanism includes a motor (7) with one end connected to the end of the reference rod (3) and the other end provided with a transmission shaft, a gear (8) connected to the motor (7) through the transmission shaft, and a rack (9) located on one side of the slide rail (4) and circumferentially arranged on the inner wall of the annular bracket (2), wherein the rack (9) meshes with the gear (8).

4. The eccentricity measuring device for a forged steel roll stepped shaft according to any one of claims 1-3, characterized in that: The inner sidewall of the reference rod (3) is provided with a slide rail (11) along its length direction; the ranging component includes a laser rangefinder (10) that is slidably connected to the slide rail (11) via a slider (12), and a positioning bolt (6) is provided on the slider (12) that passes through its top and is threadedly connected to its top.

5. The eccentricity measuring device for a forged steel roll stepped shaft according to claim 4, characterized in that: Stop plates (13) are respectively provided at both ends of the slide rail 2 (11).

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