Device for continuously measuring size of rolling ring

Abstract

The utility model provides a device for continuously measuring the size of a rolling ring. The device comprises a support frame, a roller assembly, a thrust assembly and a measuring assembly, the roller assembly can be vertically installed on the supporting frame in a lifting mode, the thrust assembly is supported below the roller assembly and used for continuously applying vertical upward thrust to the roller assembly, and the measuring assembly is in transmission connection with the roller assembly through a conduction structure and used for measuring the vertical displacement of the roller assembly leaving the initial position. During use, the roller assembly is rotatably attached to the lower surface of the outer ring of the ring piece, the lower surface of the outer ring of the ring piece pushes the roller assembly to move downwards along with increasing of the diameter of the ring piece, the roller assembly transmits vertical displacement leaving the initial position to the measuring assembly through the conduction structure, and the measuring assembly can measure and obtain the size of the ring piece. According to the utility model, the roller assembly is in rolling fit with the lower surface of the outer ring of the ring piece, so that measurement deviation caused by left-right swing of the ring piece can be avoided, and the size value of the ring piece can be accurately measured and obtained in the machining process.

Description

Technical Field

[0001] The utility model relates to the technical field of ring rolling machines, in particular to a device for continuously measuring the size of a ring rolling machine. Background Art

[0002] The vertical ring rolling machine is suitable for producing various seamless ring parts, such as bearing rings, gear rings, flanges, hubs, thin-walled cylindrical parts, etc. Its working principle is to roll and expand the ring parts through the cooperation of the main rolling roller and the core roller. When working, the heated and punched blank is put on the core roller, and the main rolling roller rotates and moves downward. After contacting the blank, it rolls the blank and drives the blank to rotate, so that the wall thickness of the blank gradually decreases and the diameter expands, and finally the blank is rolled into shape.

[0003] During the processing of the ring rolling machine, it is necessary to monitor the changes in the size of the ring rolling at any time, so as to accurately grasp and control the rolling process. Chinese patent document CN205393418U discloses an automatic vertical ring rolling machine, in which a rolling mechanism is provided on the top of the machine body, a rolling wheel is connected to the lower end of the rolling mechanism through a bracket, the bracket is connected to the machine body through an inner guide rail, the rolling wheel can move up and down under the drive of the rolling mechanism, a core roller is provided on the machine body below the rolling wheel, a driving reducer is provided at the tail of the machine body, the driving reducer is connected to the rolling wheel through a universal drive shaft, and a signal roller device and a thrust roller device are respectively provided on the machine body on both sides below the core roller. Although the above technical solution can measure the diameter of the ring rolling through the signal roller, the technical solution still has the following technical problems. In the technical solution, the signal roller is located on one side of the core roller, that is, the signal roller contacts the side of the ring rolling, and during the ring rolling forming process, the ring rolling is subjected to the pressure and friction of the rolling wheel, and will rotate and deform at the same time, causing the ring rolling to easily swing left and right. When the rolling ring swings left and right, the contact between the side of the rolling ring and the signal roller becomes unstable, causing the signal roller to be unable to accurately measure the displacement of the side of the rolling ring, making it easy for the measurement result to have a large deviation, and thus unable to accurately monitor the changes in the size of the rolling ring.

[0004] Therefore, it is necessary to provide a measuring device that can continuously and accurately measure the size of the rolling ring. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the technical defect in the prior art that, when processing a rolling ring, a signal roller contacts the rolling ring from the side to measure the size, which causes the signal roller to be easily affected by the swing of the rolling ring during the measurement process, making it easy for the measurement result to have a large deviation, thereby failing to accurately monitor the change in the size of the rolling ring, thereby providing a continuous measuring device for the size of the rolling ring that can continuously and accurately measure the size of the rolling ring.

[0006] To this end, the utility model provides a device for continuously measuring the size of a rolling ring, comprising:

[0007] Support frame;

[0008] The roller assembly is vertically mounted on the support frame through a first mounting structure and can be rotated and fitted with the lower surface of the outer ring at the bottom of the ring member;

[0009] A thrust assembly, supported below the roller assembly, for continuously applying a vertical upward thrust to the roller assembly, so that the roller assembly can contact and always keep in contact with the lower surface of the outer ring of the ring member, and when the lower surface of the outer ring of the ring member moves downward, the thrust of the thrust assembly can be overcome to make the roller assembly move vertically downward synchronously;

[0010] The measuring assembly is fixedly mounted on the supporting frame and is transmission-connected to the roller assembly via a conducting structure, and is used for measuring the vertical displacement of the roller assembly from an initial position.

[0011] Furthermore, the roller assembly comprises:

[0012] The mounting base comprises a bottom plate and two supporting plates vertically oppositely arranged above the bottom plate;

[0013] The rollers are rotatably connected to the two support plates respectively, the rotating shafts of the rollers are parallel to the core rollers, and the line connecting the centers of the two is in the vertical direction.

[0014] Furthermore, it also includes:

[0015] A first baffle is arranged on a side of the bottom plate away from the ring rolling machine, with an upper end fixedly connected to the bottom plate and a lower end extending obliquely toward a side away from the support frame;

[0016] There are two second baffles which are arranged oppositely on two sides of the bottom plate, with upper ends fixedly connected to the bottom plate and lower ends extending obliquely toward a side away from the support frame.

[0017] Furthermore, the first mounting structure comprises:

[0018] The guide sleeves are in two groups, which are vertically mounted on the support frame opposite to each other on the left and right sides;

[0019] The guide shafts are divided into two groups, which are arranged opposite to each other on the left and right sides and are respectively inserted into the two groups of guide shaft sleeves so as to be movable in lifting and lowering. The upper ends are respectively fixedly connected to the roller assemblies and the lower ends are free ends.

[0020] Furthermore, the guide sleeve comprises an upper sleeve and a lower sleeve which are arranged opposite to each other in upper and lower directions, and a certain distance is spaced between the upper sleeve and the lower sleeve so that the guide shaft is partially exposed to the outside of the guide sleeve.

[0021] Furthermore, the conductive structure comprises:

[0022] A through groove is vertically arranged on the inner side walls of the upper sleeve and the lower sleeve of a set of the guide sleeves;

[0023] A follower rack is inserted into the through slot in a vertically movable manner, and its tooth surface faces the outside of the guide sleeve; the upper end of the follower rack is fixedly connected to the roller assembly, and the lower end is a free end;

[0024] The gear is rotatably mounted on the measuring assembly through a transmission shaft and is meshedly connected with a portion of the follower rack located between the upper sleeve and the lower sleeve.

[0025] Furthermore, the conductive structure comprises:

[0026] A through groove is vertically arranged on the inner side walls of the upper sleeve and the lower sleeve of a set of the guide sleeves;

[0027] A follower rack is movably inserted into the through slot in a vertically movable manner, with a tooth surface facing the outside of the guide sleeve and a back surface fixedly connected to the corresponding guide shaft located inside the guide sleeve;

[0028] The gear is rotatably mounted on the measuring assembly through a transmission shaft and is meshedly connected with a portion of the follower rack located between the upper sleeve and the lower sleeve.

[0029] Furthermore, it also includes:

[0030] The sleeves are divided into two groups, which are respectively sleeved on the outsides of the two groups of guide sleeves; a window is provided on the sleeve corresponding to the group of guide sleeves provided with the through groove, and the window is opposite to the gear so that the gear can mesh with the follower rack through the window.

[0031] Furthermore, the thrust assembly comprises:

[0032] An oil cylinder is mounted on the support frame through a second mounting structure and can be communicated with an external hydraulic oil circuit;

[0033] A piston rod is telescopically installed in the oil cylinder, and the upper end of the piston rod is fixedly connected to the base plate for continuously applying a vertical upward thrust to the base plate.

[0034] Furthermore, the second mounting structure comprises:

[0035] The mounting plate is a square plate with a through hole in the middle, and the mounting plate is fixedly sleeved on the outside of the oil cylinder;

[0036] There are four connecting bolts, which are respectively arranged at the four corners of the mounting plate, one end of which is fixedly connected to the connecting plate, and the other end of which is fixedly connected to the bottom plate.

[0037] The technical solution provided by the utility model has the following advantages:

[0038] The utility model discloses a continuous measuring device for the size of a rolled ring, comprising a support frame, a roller assembly, a thrust assembly and a measuring assembly; the roller assembly can be vertically lifted and lowered on the support frame through a first mounting structure, and can rotate and fit with the lower surface of the outer ring at the bottom of the ring member; the thrust assembly is supported below the roller assembly, and is used to continuously apply a vertical upward thrust to the roller assembly, so that the roller assembly can contact and always fit with the lower surface of the outer ring of the ring member, and when the lower surface of the outer ring of the ring member moves downward, the thrust of the thrust assembly can be overcome to make the roller assembly move vertically downward synchronously; the measuring assembly is fixedly mounted on the support frame, and is transmission-connected to the roller assembly through a conducting structure, and is used to measure the vertical displacement of the roller assembly from an initial position.

[0039] The utility model provides a continuous measuring device for the size of a rolled ring. When in use, the roller assembly rotates and fits with the lower surface of the outer ring of the ring. As the rolling wheel rolls the ring, the diameter of the ring increases continuously, and the lower surface of the outer ring of the ring pushes the roller assembly to move downward. Since the thrust assembly always applies a vertical upward thrust to the roller assembly, the roller assembly can always maintain rotational fit with the lower surface of the outer ring of the ring. During the vertical downward movement of the roller assembly, the vertical displacement of the roller assembly away from the initial position is transmitted to the measuring assembly through the conduction structure, so that the measuring assembly can measure the size value of the ring.

[0040] The utility model provides a continuous measuring device for the size of a rolled ring. Since the roller assembly is always in rolling contact with the lower surface of the outer ring of the ring, the thrust of the ring applied to the roller assembly is always vertically downward, and the moving direction of the roller assembly is also vertically downward, thereby avoiding measurement deviations caused by the left and right swinging of the ring. Therefore, the size value of the ring can be accurately measured during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the prior art or the specific implementation methods of the present utility model, the drawings used in the description of the prior art or the specific implementation methods are briefly introduced below.

[0042] Figure 1 It is a schematic diagram of the overall structure of the device for continuously measuring the size of a rolling ring of the utility model.

[0043] Figure 2 yes Figure 1 Another stereoscopic view of .

[0044] Figure 3 yes Figure 2 Schematic cross-sectional view of .

[0045] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of part A.

[0046] : Reference numerals: 21, support frame; 22, roller assembly; 221, mounting seat; 2211, base plate; 2212, support plate; 2213, first baffle; 2214, second baffle; 222, roller; 223, guide sleeve; 2231, upper sleeve; 2232, lower sleeve; 2233, through groove; 224, guide shaft; 225, sleeve; 2251, window; 23, thrust assembly; 231, cylinder; 232, piston rod; 233, mounting plate; 234, connecting bolt; 24, measuring assembly; 251, follower rack; 252, gear; 253, transmission shaft. DETAILED DESCRIPTION

[0047] In order to make those skilled in the art better understand the present solution, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0048] It should be noted that the terms "first", "second", etc. in the claims and description of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not limited to those steps or units clearly listed, but may also include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate orientation or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

[0050] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0051] This embodiment provides a device for continuously measuring the size of a rolling ring. Figure 1-4 As shown, it includes a support frame 21, a roller assembly 22, a thrust assembly 23 and a measuring assembly 24; the roller assembly 22 can be vertically lifted and lowered on the support frame 21 through a first mounting structure, and can be rotatably fitted with the lower surface of the outer ring at the bottom of the ring; the thrust assembly 23 is supported below the roller assembly 22, and is used to continuously apply a vertical upward thrust to the roller assembly 22, so that the roller assembly 22 can contact and always keep fit with the lower surface of the outer ring of the ring, and when the lower surface of the outer ring of the ring moves downward, it can overcome the thrust of the thrust assembly 23 to make the roller assembly 22 move vertically downward synchronously; the measuring assembly 24 is fixedly mounted on the support frame 21, and is transmission-connected to the roller assembly 22 through a conducting structure, and is used to measure the vertical displacement of the roller assembly 22 from the initial position.

[0052] In the continuous measuring device for the rolled ring size of this embodiment, the initial position of the roller assembly 22 can be adjusted up and down as needed, so that the measuring device of this embodiment can be suitable for measuring rings of different sizes. In addition, the initial relative position between the roller assembly 22 and the ring can also be set as needed, for example, the roller assembly 22 can be in contact with the lower surface of the outer ring at the bottom of the ring when the ring is in an unprocessed state, so that the roller assembly 22 can completely transmit the size change information of the ring from the beginning of processing to the final forming process to the measuring assembly 24; or, the roller assembly 22 can also not be in contact with the ring when the ring is in an unprocessed state, but only in contact with the lower surface of the outer ring at the bottom of the ring when the diameter of the ring increases to a certain value, so that the size change information of a certain section of the ring processing process can be transmitted to the measuring assembly 24.

[0053] The continuous measuring device for the rolled ring size of the present embodiment takes the example of the roller assembly 22 rotating and fitting with the lower surface of the outer ring at the bottom of the ring when the ring is in an unprocessed state. When in use, the initial position of the roller assembly 22 is adjusted to be able to rotate and fit with the lower surface of the outer ring of the ring. As the rolling wheel rolls the ring, the diameter of the ring continues to increase, so that the lower surface of the outer ring of the ring pushes the roller assembly 22 to move downward; because the thrust assembly 23 always applies a vertical upward thrust to the roller assembly 22, the roller assembly 22 can always maintain rotational fit with the lower surface of the outer ring of the ring; during the vertical downward movement of the roller assembly 22, the vertical displacement of the roller assembly 22 away from the initial position is transmitted to the measuring assembly 24 through the conduction structure, so that the measuring assembly 24 can measure the dimensional changes of the ring during the entire processing process.

[0054] In this embodiment, since the roller assembly 22 always rolls in contact with the lower surface of the outer ring of the ring, the thrust of the ring applied to the roller assembly 22 is always vertically downward, and the moving direction of the roller assembly 22 is also vertically downward, thereby avoiding measurement deviations caused by the ring swinging left and right, thereby accurately measuring and obtaining the size value of the ring during the processing.

[0055] The continuous measuring device for the rolling ring size of this embodiment, further, the roller assembly 22 includes a mounting seat 221 and a roller 222; the mounting seat 221 includes a base plate 2211 and two supporting plates 2212 vertically oppositely arranged above the base plate 2211; the roller 222 is rotatably connected to the two supporting plates 2212 respectively, the rotating axis of the roller 222 is parallel to the core roller, and the line connecting the centers of the two is in the vertical direction.

[0056] The ring rolling size continuous measuring device of the present embodiment further includes a first baffle plate 2213 and a second baffle plate 2214; the first baffle plate 2213 is arranged on the side of the bottom plate 2211 away from the ring rolling machine, the upper end of the first baffle plate 2213 is fixedly connected to the bottom plate 2211, and the lower end is inclined and extends toward the side away from the support frame 21; there are two second baffle plates 2214, which are relatively arranged on both sides of the bottom plate 2211, the upper end of the first baffle plate 2213 is fixedly connected to the bottom plate 2211, and the lower end of the first baffle plate 2214 is inclined and extends toward the side away from the support frame 21.

[0057] In this embodiment, the first baffle 2213 and the second baffle 2214 can block external pollutants to a certain extent.

[0058] The continuous measuring device for the rolling ring size of this embodiment, the first mounting structure includes a guide sleeve 223 and a guide shaft 224; the guide sleeve 223 is divided into two groups, which are vertically mounted on the support frame 21 opposite to each other on the left and right; the guide shaft 224 is divided into two groups, which are arranged opposite to each other on the left and right, and are respectively inserted into the two groups of the guide sleeves 223 so as to be movable and retractable, and the upper ends are respectively fixedly connected to the roller assemblies 22, and the lower ends are free ends.

[0059] In this embodiment, the cooperation between the guide shaft 224 and the guide shaft sleeve 223 can prevent the roller assembly 22 from lateral displacement, thereby ensuring that the roller assembly 22 always moves in the vertical direction.

[0060] The continuous measuring device for the rolling ring size of this embodiment further comprises the guide sleeve 223 comprising an upper sleeve 2231 and a lower sleeve 2232 which are arranged opposite to each other, and a certain distance is spaced between the upper sleeve 2231 and the lower sleeve 2232 so that the guide shaft 224 is partially exposed to the outside of the guide sleeve 223.

[0061] The continuous measuring device for the rolling ring size of this embodiment, further, the transmission structure includes a through groove 2233, a follower rack 251 and a gear 252; the through groove 2233 is vertically arranged on the inner side walls of the upper sleeve 2231 and the lower sleeve 2232 of a group of the guide sleeves 223; the follower rack 251 can be vertically lifted and movably inserted in the through groove 2233, and the tooth surface faces the outside of the guide sleeve 223; the upper end of the follower rack 251 is fixedly connected to the roller assembly 22, and the lower end is a free end; the gear 252 is rotatably mounted on the measuring assembly 24 through the transmission shaft 253, and is meshedly connected with the part of the follower rack 251 located between the upper sleeve 2231 and the lower sleeve 2232.

[0062] In this embodiment, the follower rack 251 is fixedly connected to the roller assembly 22. When the roller assembly 22 moves downward, the follower rack 251 moves downward synchronously with the roller assembly 22, and at the same time drives the gear 252 meshing with the follower rack 251 to rotate synchronously. The number of revolutions of the gear 252 is transmitted to the measuring assembly 24 through the transmission shaft 253. The measuring assembly 24 calculates the displacement of the roller assembly 22 based on the obtained number of revolutions, and further calculates the size value of the ring. In this embodiment, the measuring assembly 24 may include an encoder, and the displacement of the roller assembly 22 can be calculated by the encoder, and the size value of the ring can be calculated.

[0063] The continuous measuring device for the rolling ring size of this embodiment, further, the transmission structure includes a through slot 2233, a follower rack 251 and a gear 252; the through slot 2233 is vertically arranged on the inner side walls of the upper sleeve 2231 and the lower sleeve 2232 of a group of the guide sleeves 223; the follower rack 251 can be vertically raised and lowered and movably inserted into the through slot 2233, with the tooth surface facing the outside of the guide sleeve 223, and the back side fixedly connected with the corresponding guide shaft 224 located inside the guide sleeve 223; the gear 252 is rotatably mounted on the measuring component 24 through the transmission shaft 253, and is meshedly connected with the part of the follower rack 251 located between the upper sleeve 2231 and the lower sleeve 2232.

[0064] In this embodiment, the follower rack 251 is fixedly connected to the corresponding guide shaft 224 located inside the guide sleeve 223. Since the guide shaft 224 is fixedly connected to the roller assembly 22, the displacement of the guide shaft 224 is synchronized with the roller assembly 22, and then the displacement of the follower rack 251 is also synchronized with the roller assembly 22. Therefore, when the roller assembly 22 moves downward, the guide shaft 224 will drive the follower rack 251 to move downward synchronously, and then drive the gear 252 meshing with the follower rack 251 to rotate synchronously, and the number of revolutions of the gear 252 will be transmitted to the measuring assembly 24 through the transmission shaft 253. The measuring assembly 24 calculates the displacement of the roller assembly 22 according to the obtained number of revolutions information, and further calculates the size value of the ring. In this embodiment, the measuring assembly 24 may include an encoder, and the displacement of the roller assembly 22 can be calculated by the encoder, and then the size value of the ring can be calculated.

[0065] The continuous measuring device for the rolling ring size of this embodiment further includes a sleeve 225. The sleeve 225 is divided into two groups and is respectively sleeved on the outer sides of the two groups of guide sleeves 223. A window 2251 is provided on the sleeve 225 corresponding to the group of guide sleeves 223 provided with the through groove 2233, and the window 2251 is opposite to the gear 252, so that the gear 252 can mesh with the follower rack 251 through the window 2251.

[0066] The continuous measuring device for the rolled ring size of this embodiment, further, the thrust assembly 23 includes a cylinder 231 and a piston rod 232; the cylinder 231 is installed on the support frame 21 through a second mounting structure, and can be connected to an external hydraulic oil circuit; the piston rod 232 is telescopically installed in the cylinder 231, and the upper end of the piston rod 232 is fixedly connected to the base plate 2211, for continuously applying a vertical upward thrust to the base plate 2211.

[0067] In this embodiment, the oil pressure of the hydraulic oil introduced into the oil cylinder 231 can be kept constant, so that the thrust of the piston rod 232 on the bottom plate 2211 can be kept constant, thereby reducing the measurement error.

[0068] The continuous measuring device for the rolling ring size of this embodiment, the second mounting structure includes a mounting plate 233 and connecting bolts 234; the mounting plate 233 is a square plate with a through hole in the middle, and the mounting plate 233 is fixedly sleeved on the outside of the oil cylinder 231; there are four connecting bolts 234, which are respectively arranged at the four corners of the mounting plate 233, one end of which is fixedly connected to the mounting plate 233, and the other end is fixedly connected to the bottom plate 2211.

[0069] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of this innovative technical solution.

Claims

1. A continuous measuring device for rolling ring size, characterized in that: include: Support frame (21); A roller assembly (22) is mounted on the support frame (21) in a vertically movable manner via a first mounting structure, and is capable of rotating and fitting with the lower surface of the outer ring at the bottom of the ring member; A thrust assembly (23) is supported below the roller assembly (22) and is used to continuously apply a vertically upward thrust to the roller assembly (22), so that the roller assembly (22) can contact and always keep in contact with the lower surface of the outer ring of the ring member, and when the lower surface of the outer ring of the ring member moves downward, the thrust of the thrust assembly (23) can be overcome to enable the roller assembly (22) to move vertically downward synchronously; A measuring assembly (24) is fixedly mounted on the support frame (21) and is transmission-connected to the roller assembly (22) via a conducting structure, and is used to measure the vertical displacement of the roller assembly (22) away from an initial position.

2. The continuous measuring device for the rolling ring size according to claim 1 is characterized in that: The roller assembly (22) comprises: The mounting seat (221) comprises a bottom plate (2211) and two supporting plates (2212) vertically arranged above the bottom plate (2211); The rollers (222) are rotatably connected to the two support plates (2212), respectively; the rotation axis of the rollers (222) is parallel to the core roller, and the line connecting the centers of the two is in the vertical direction.

3. The continuous measuring device for the rolling ring size according to claim 2 is characterized in that: Also includes: A first baffle (2213) is arranged on a side of the bottom plate (2211) away from the ring rolling machine, with an upper end fixedly connected to the bottom plate (2211) and a lower end extending obliquely toward a side away from the support frame (21); There are two second baffles (2214) which are arranged oppositely on two sides of the bottom plate (2211), with the upper ends fixedly connected to the bottom plate (2211) and the lower ends extending obliquely toward a side away from the support frame (21).

4. The continuous measuring device for the rolling ring size according to claim 1 is characterized in that: The first mounting structure comprises: The guide sleeves (223) are in two groups, which are vertically mounted on the support frame (21) in a relatively opposite manner on the left and right sides; The guide shafts (224) are divided into two groups, which are arranged opposite to each other on the left and right sides and are respectively inserted into the two groups of guide shaft sleeves (223) so as to be movable and retractable. The upper ends are respectively fixedly connected to the roller assemblies (22) and the lower ends are free ends.

5. The continuous measuring device for rolling ring size according to claim 4, characterized in that: The guide shaft sleeve (223) comprises an upper sleeve (2231) and a lower sleeve (2232) which are arranged opposite to each other in upper and lower directions, and a certain distance is spaced between the upper sleeve (2231) and the lower sleeve (2232) so that a portion of the guide shaft (224) is exposed outside the guide shaft sleeve (223).

6. The continuous measuring device for the rolling ring size according to claim 5, characterized in that: The conductive structure comprises: A through groove (2233) vertically disposed on the inner side walls of the upper sleeve (2231) and the lower sleeve (2232) of a set of the guide shaft sleeves (223); The follower rack (251) is movably inserted into the through slot (2233) in a vertically movable manner, and its tooth surface faces the outside of the guide shaft sleeve (223); the upper end of the follower rack (251) is fixedly connected to the roller assembly (22), and the lower end is a free end; The gear (252) is rotatably mounted on the measuring assembly (24) via a transmission shaft (253), and is meshingly connected with a portion of the follower rack (251) located between the upper sleeve (2231) and the lower sleeve (2232).

7. The continuous measuring device for the rolling ring size according to claim 5, characterized in that: The conductive structure comprises: A through groove (2233) vertically disposed on the inner side walls of the upper sleeve (2231) and the lower sleeve (2232) of a set of the guide shaft sleeves (223); A follower rack (251) is movably inserted into the through slot (2233) in a vertically movable manner, with a tooth surface facing the outside of the guide sleeve (223) and a back surface fixedly connected to the corresponding guide shaft (224) located inside the guide sleeve (223); The gear (252) is rotatably mounted on the measuring assembly (24) via a transmission shaft (253), and is meshingly connected with a portion of the follower rack (251) located between the upper sleeve (2231) and the lower sleeve (2232).

8. The continuous measuring device for rolling ring size according to claim 6 or 7, characterized in that: Also includes: The sleeves (225) are in two groups and are respectively sleeved on the outsides of the two groups of guide sleeves (223); a window (2251) is provided on the sleeve (225) corresponding to the group of guide sleeves (223) provided with the through groove (2233), and the window (2251) is directly opposite to the gear (252), so that the gear (252) can mesh with the follower rack (251) through the window (2251).

9. The continuous measuring device for rolling ring size according to claim 2, characterized in that: The thrust assembly (23) comprises: An oil cylinder (231) is mounted on the support frame (21) via a second mounting structure and is capable of communicating with an external hydraulic oil circuit; A piston rod (232) is telescopically mounted in the oil cylinder (231); the upper end of the piston rod (232) is fixedly connected to the bottom plate (2211) and is used to continuously apply a vertical upward thrust to the bottom plate (2211).

10. The continuous measuring device for rolling ring size according to claim 9, characterized in that: The second mounting structure comprises: The mounting plate (233) is a square plate with a through hole in the middle, and the mounting plate (233) is fixedly sleeved on the outside of the oil cylinder (231); There are four connecting bolts (234), which are respectively arranged at the four corners of the mounting plate (233), with one end fixedly connected to the mounting plate (233) and the other end fixedly connected to the bottom plate (2211).

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