Calibrating device for machine core of adjustable rack of tube push bench

Abstract

The invention relates to a machine core calibration device for an adjustable rack of a tube push bench. The machine core calibration device comprises an annular rack, and a machine core supporting structure is arranged at one axial end of the annular rack; a calibration block is arranged at the other axial end of the annular rack in an extending manner; the center line of a roll hole pattern on an adjustable rack core loaded on the core supporting structure is coaxial with the center line of the calibration block; a plurality of detection rods are arranged on the annular rack, the detection rods are connected with a detection driving part, the detection driving part drives the detection rods to press against the roller in the machine core of the adjustable rack until the roller abuts against the calibration block, and a displacement sensor is arranged on the detection driving part; and the control part is used for receiving the displacement data output by the displacement sensor and transmitting the displacement data to a production control system. Roll gap measurement of the machine core of the pipe jacking adjustable rack is completed, manual detection is replaced, the working efficiency and detection precision of machine core assembly and detection can be improved, meanwhile, the intelligent operation level of a factory is achieved, and the device is compact in structural form, convenient to use, high in working efficiency and capable of meeting the working requirement between rollers.

Description

Technical Field

[0001] The invention relates to the technical field of pipe jacking production, and in particular to a pipe jacking machine adjustable frame core calibration device. Background Art

[0002] The pipe jacking machine is an important equipment for the production of hot-rolled seamless steel pipes, in which the rollers and dies provide the hole shape for the rolling deformation of the steel pipes.

[0003] With the development of pipe jacking production technology, the output of the unit has gradually increased, and at the same time, the precision requirements for the wall thickness of steel pipes have also gradually increased. In order to improve the wall thickness precision of steel pipes and reduce the loss of cutting heads (tails) of steel pipes, the pipe jacking machine is equipped with an adjustable frame with online roller pressing at the bed exit. The adjustable frame can dynamically adjust the roll gap during the rolling process of the pipe jacking machine, increase or reduce the amount of pressing, accurately set the hole type, and realize the sharpening of the head and tail of the rough pipe. It meets the precision of the finished pipe, realizes the wall thickness control of the steel pipe along the longitudinal length, and optimizes the existing pipe jacking production process.

[0004] The adjustable frame arch is equipped with 3 pressing cylinders, which are evenly distributed at 120 degrees along the circumference; the pressing servo cylinder is controlled by hydraulic servo. The adjustable frame movement includes 3 roller assemblies, which are arranged in a side "Y" shape. The angles of the front and rear rollers are staggered by 60 degrees. Each roller can be adjusted radially separately, and is equipped with 3 slides and balancing devices accordingly. The rollers are installed on the slides, which can slide along the radial guide grooves. The pressing servo cylinder moves in a radial straight line by pushing the pressure block, slide, and roller assembly. During the rolling process, the gap between the rollers of the 3 roller assemblies is dynamically adjusted to adjust the rolling pass. Therefore, before the adjustable frame movement goes into production, the exact position of the roller gap needs to be calibrated between the rollers.

[0005] The adjustable roller mold of the existing pipe jacking machine has no online roll gap adjustment function, so there is no need to calibrate the roll gap between the rolls, so the existing pipe jacking machine unit is not equipped with a movement calibration device.

[0006] Therefore, the inventor, relying on his many years of experience and practice in related industries, proposes a device for calibrating the adjustable frame movement of a pipe jacking machine to overcome the defects of the prior art. Summary of the invention

[0007] The purpose of the present invention is to provide a device for calibrating the movement of an adjustable frame of a pipe jacking machine. The present invention completes the roll gap measurement of the movement of the adjustable frame of the pipe jacking machine, replaces manual inspection, can improve the work efficiency and inspection accuracy of movement assembly and inspection, and at the same time realizes the intelligent operation level of the factory. The present invention has a compact structure, is easy to use, and has high work efficiency, and can meet the work requirements of the roller room.

[0008] The object of the present invention is achieved by providing a device for calibrating the adjustable frame movement of a pipe jacking machine, comprising:

[0009] An annular frame with a horizontally arranged central axis, one axial end of the annular frame is provided with a movement support structure which can move along its axial direction to transport the adjustable frame movement into the annular frame; the other axial end of the annular frame is provided with a calibration block which can be detachably connected and used as a rolling sample and is extended into the annular frame, the center line of the roll hole profile on the adjustable frame movement loaded on the movement support structure is coaxially arranged with the center line of the calibration block; a plurality of detection rods are arranged on the annular frame at intervals along the circumferential direction and can move radially, the detection rods are connected with a detection drive unit, the detection drive unit drives the detection rods to press against the rollers in the adjustable frame movement until the rollers abut against the calibration block, the detection drive unit is provided with a displacement sensor, the displacement sensor detects and outputs the displacement data of the detection rod pushed by the detection drive unit when the rollers abut against the calibration block;

[0010] The control unit is electrically connected to the displacement sensor, receives the displacement data output by the displacement sensor and transmits the displacement data to a production control system.

[0011] In a preferred embodiment of the present invention, it further comprises a transverse track structure extending from the annular frame toward the axial direction thereof, and the core support structure can move along the axial direction of the annular frame along the transverse track structure.

[0012] In a preferred embodiment of the present invention, the transverse track structure includes a V-shaped track and a flat track arranged in parallel and spaced apart, and the bottom end of the movement support structure is provided with a first groove and a second groove respectively sleeved on the V-shaped track and the flat track.

[0013] In a preferred embodiment of the present invention, a track base is provided at one axial end of the annular frame, and the V-shaped track and the flat track are fixedly provided on the track base and the annular frame.

[0014] In a preferred embodiment of the present invention, the movement supporting structure includes a movement loading trolley, the movement loading trolley is provided with a movement accommodating groove with a top opening, and the side wall of the movement accommodating groove is provided with a side panel slot for fixing the adjustable frame movement.

[0015] In a preferred embodiment of the present invention, a transverse driving unit is provided at the other axial end of the annular frame, and the transverse driving unit is fixedly connected to the movement supporting structure to drive the movement supporting structure to move along the axial direction of the annular frame.

[0016] In a preferred embodiment of the present invention, the transverse driving part is a transverse hydraulic cylinder, which includes a transverse cylinder barrel and a transverse cylinder rod. The transverse cylinder barrel is fixed to the other axial end of the annular frame, a fork is provided at the protruding end of the transverse cylinder rod, and a connecting rod extending in the direction of the transverse hydraulic cylinder is provided at the bottom of the movement support structure, and the fork is connected to the connecting rod.

[0017] In a preferred embodiment of the present invention, the other axial end of the annular frame is detachably connected to a column, the transverse driving part is fixedly connected to the column, and the calibration block is detachably connected to the column.

[0018] In a preferred embodiment of the present invention, a sample connection seat is fixedly provided at the other axial end of the annular frame, and a connecting shaft is detachably connected to the sample connection seat, and the calibration block is coaxially and detachably connected to the connecting shaft.

[0019] In a preferred embodiment of the present invention, the detection drive part is a detection hydraulic cylinder, and the central axis of the detection hydraulic cylinder is arranged along the radial direction of the annular frame; the detection hydraulic cylinder includes a detection cylinder barrel and a detection cylinder rod, the detection cylinder barrel is fixedly connected to the annular frame, the detection cylinder rod slides through the side wall of the annular frame, the detection rod is located in the annular frame, and the protruding end of the detection cylinder rod is fixedly connected to the detection rod.

[0020] In a preferred embodiment of the present invention, six detection hydraulic cylinders and detection rods are evenly spaced along the circumferential direction on the annular frame.

[0021] In a preferred embodiment of the present invention, side supports are symmetrically arranged on both sides of the annular frame, and a bottom support is arranged at the bottom of the annular frame.

[0022] As described above, the adjustable frame movement calibration device of the pipe jacking machine of the present invention has the following beneficial effects:

[0023] In the present invention, a detection drive unit, a detection rod and a calibration block are used to automatically detect the roll gap of the rolling mill. The device structure is similar to the online working principle of the adjustable frame, and both adopt the method of radial straight line pressing down, so the roll gap detection data is accurate; at the same time, the control unit configured in the present invention has the function of data transmission, and realizes real-time transmission of detection data, which is the basis for realizing intelligent manufacturing of the roll room of the steel pipe production line. The detected data can be transmitted to the control system and process model of the rolling production line in real time to realize automated production; the present invention completes the roll gap measurement of the movement of the adjustable frame of the top pipe, replaces manual detection, can improve the work efficiency and detection accuracy of the movement assembly and detection, and realizes the intelligent operation level of the factory. The present invention has a compact structure, is easy to use, and has high work efficiency, which can meet the working requirements of the roll room. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0025] in:

[0026] Figure 1 : It is a stereoscopic view of the adjustable frame movement calibration device of the pipe jacking machine of the present invention.

[0027] Figure 2 : It is a front view of the adjustable frame movement calibration device of the pipe jacking machine of the present invention.

[0028] Figure 3 : It is a top view of the adjustable frame movement calibration device of the pipe jacking machine of the present invention.

[0029] Figure 4 : It is a side view of the adjustable frame movement calibration device of the pipe jacking machine of the present invention.

[0030] Figure 5 :for Figure 2 Middle AA section view.

[0031] Figure 6 : A schematic diagram of the present invention when the adjustable frame movement is pulled out.

[0032] Figure 7 : A schematic diagram of the calibration state after the adjustable frame movement is loaded for the present invention.

[0033] In the figure:

[0034] 1. Movement loading trolley; 101. Side panel slot; 102. Connecting rod; 2. Side support; 3. Ring frame; 4. Detection hydraulic cylinder; 5. Detection rod; 6. Track base; 7. V-shaped track; 8. Flat track; 9. Column; 10. Transverse hydraulic cylinder; 11. Calibration block; 12. Connecting shaft; 13. Fork; 14. Bottom support; 15. Adjustable frame movement; 16. Displacement sensor. DETAILED DESCRIPTION

[0035] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0036] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] like Figures 1 to 7 As shown, the present invention provides a device for calibrating the adjustable frame movement of a pipe jacking machine, comprising:

[0039] An annular frame 3 is arranged with a horizontal central axis, and an axial end of the annular frame 3 is provided with a movement support structure which can move along its axial direction to transport the adjustable frame movement 15 into the annular frame 3; the other axial end of the annular frame 3 is extended into the annular frame 3 to be provided with a calibration block 11 which can be detachably connected and used as a rolling sample, and the center line of the roll hole on the adjustable frame movement 15 loaded on the movement support structure is coaxially arranged with the center line of the calibration block 11; a plurality of detection rods 5 are arranged on the annular frame 3 at intervals along the circumferential direction and can move radially (i.e. can be pressed down radially in a straight line), and a detection drive unit (a detection hydraulic cylinder 4 can be used) is connected to the detection rod 5, and the detection drive unit drives the detection rod 5 to press against the roll in the adjustable frame movement 15 until the roll abuts against the calibration block 11, and a displacement sensor 16 is provided on the detection drive unit, and the displacement sensor 16 detects and outputs the displacement data of the detection drive unit pushing the detection rod 5 when the roll abuts against the calibration block 11;

[0040] The control unit is electrically connected to the displacement sensor 16, receives the displacement data output by the displacement sensor 16 and transmits the displacement data to the production control system.

[0041] The adjustable frame movement calibration device of the pipe jacking machine of the present invention uses the calibration block 11 as the rolling sample. The device detects the displacement data of the detection drive part pushing the detection rod 5 when the roller abuts against the calibration block 11. The data is used as the calibration of the production drive hydraulic cylinder of the roller during production, that is, the position data output by the displacement sensor 16 is the position of the roller gap when the roller is in the rolling position, which can be used for the calibration of the initial rolling position of the online servo cylinder.

[0042] Driven by the detection drive unit (detection hydraulic cylinder 4), the detection rod 5 is pressed against the pressure block (existing technology) assembled on the roller assembly, driving the roller (existing technology) to move radially. When the roller presses the calibration block 11 (center axis), the reaction force of the calibration block 11 increases the oil pressure of the hydraulic system in the detection drive unit (detection hydraulic cylinder 4). A hydraulic pressure detection sensor is arranged in the detection hydraulic cylinder 4, and the feedback from the hydraulic pressure detection sensor automatically determines that the calibration block 11 has been pressed.

[0043] When the rollers press the calibration block 11, the system records the detection value (displacement data) of the displacement sensor 16 of the detection drive unit (detection hydraulic cylinder 4). At this time, the value of the displacement sensor 16 corresponds to the roller pressing position value, which can then be converted into the roller gap value. At the same time, the roller pressing position value is transmitted to the online production control system. When rolling the rolled product corresponding to the specification size of the calibration block 11, the pressing hydraulic cylinder of the adjustable frame of the pipe jacking machine on the production line presses down according to the data detected by the adjustable frame core calibration device of the pipe jacking machine of the present invention.

[0044] The calibration block 11 can be of various specifications. The calibration block 11 of corresponding specifications can be replaced according to actual rolling needs, so that data of various rolling specifications can be obtained.

[0045] In the present invention, a detection drive unit, a detection rod 5 and a calibration block 11 are used to automatically detect the roll gap of the rolling mill. The device structure is similar to the online working principle of the adjustable frame, and both adopt the method of radial straight line pressing down, so the roll gap detection data is accurate; at the same time, the control unit configured in the present invention has the function of data transmission, which realizes real-time transmission of detection data, and is the basis for realizing intelligent manufacturing of the roll room of the steel pipe production line. The detected data can be transmitted to the control system and process model of the rolling production line in real time to realize automated production; the present invention completes the roll gap measurement of the top pipe adjustable frame movement, replaces manual detection, can improve the work efficiency and detection accuracy of the movement assembly and detection, and realizes the intelligent operation level of the factory. The present invention has a compact structure, is easy to use, and has high work efficiency, which can meet the working requirements of the roll room.

[0046] Furthermore, the device also includes a transverse track structure extending from the annular frame toward the axial direction thereof, and the core support structure can move along the axial direction of the annular frame 3 along the transverse track structure.

[0047] Further, if Figure 1 As shown, the traverse track structure includes a V-shaped track 7 and a flat track 8 arranged in parallel and at intervals, and the bottom end of the movement support structure is provided with a first groove and a second groove respectively sleeved on the V-shaped track 7 and the flat track 8. The V-shaped track 7 can position the movement support structure (the movement loading trolley 1) in the horizontal direction.

[0048] Further, if Figure 1 , Figure 2 , Figure 3 As shown, a track base 6 is provided at one axial end of the annular frame 3 , and a V-shaped track 7 and a flat track 8 are fixedly provided on the track base 6 and the annular frame 3 .

[0049] Further, if Figure 1 As shown, the movement supporting structure includes a movement mounting trolley 1, on which a movement accommodating groove with a top opening is arranged, on the side wall of the movement accommodating groove a side panel slot 101 for fixing an adjustable frame movement 15 is arranged, on the side wall of the adjustable frame movement 15 a positioning protrusion is arranged, and the positioning protrusion can be inserted into the side panel slot 101 to achieve stable connection and positioning.

[0050] Furthermore, a transverse driving unit is provided at the other axial end of the annular frame 3 , and the transverse driving unit is fixedly connected to the movement supporting structure to drive the movement supporting structure to move along the axial direction of the annular frame 3 .

[0051] In this embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the lateral movement driving part is a lateral movement hydraulic cylinder 10, which includes a lateral movement cylinder barrel and a lateral movement cylinder rod. The lateral movement cylinder barrel is fixed to the other axial end of the annular frame 3, as shown in FIG. Figure 5 As shown, a fork 13 is provided at the extended end of the transverse cylinder rod, a connecting rod 102 extending toward the transverse hydraulic cylinder 10 is provided at the bottom of the movement support structure, and the fork 13 is connected to the connecting rod 102 .

[0052] Further, if Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the other axial end of the annular frame 3 is detachably connected to a column 9, the lateral drive unit is fixedly connected to the column 9, and the calibration block 11 is detachably connected to the column 9. In this embodiment, the lateral cylinder is mounted on the column 9 in the form of a flange.

[0053] The column 9 is connected to the annular frame 3 through two upper and lower positioning pins to ensure the verticality of the center lines of the column 9 and the annular frame 3.

[0054] In this embodiment, a sample connection seat is fixedly provided at the other axial end of the annular frame 3 (the sample connection seat is provided on the column 9), and a connecting shaft 12 is detachably connected to the sample connection seat, and a calibration block 11 is coaxially and detachably connected to the connecting shaft 12.

[0055] The connecting shaft 12 is installed on the sample connecting seat on the column 9 through a screw, and the calibration block 11 is connected to the connecting shaft 12. During the processing, the coaxiality of the connecting shaft 12 and the calibration block 11 is ensured, as well as the concentricity of the connecting shaft 12, the calibration block 11 and the center line of the annular frame 3 is ensured.

[0056] Furthermore, the detection drive unit is a detection hydraulic cylinder 4, and the central axis of the detection hydraulic cylinder 4 is arranged along the radial direction of the annular frame 3; the detection hydraulic cylinder 4 includes a detection cylinder barrel and a detection cylinder rod, the detection cylinder barrel is fixedly connected to the annular frame 3, the detection cylinder rod slides through the side wall of the annular frame 3, the detection rod 5 is located in the annular frame 3, and the protruding end of the detection cylinder rod is fixedly connected to the detection rod 5.

[0057] Further, if Figure 1 , Figure 2 As shown, six detection hydraulic cylinders 4 and detection rods 5 are evenly spaced along the circumferential direction on the annular frame 3.

[0058] In this embodiment, the detection cylinder is mounted on the annular frame 3 by means of a flange.

[0059] The detection hydraulic cylinders 4 and the detection rods 5 are evenly distributed at intervals of 60° along the circumferential direction, and a total of 6 detection hydraulic cylinders 4 are provided. The extended end of each detection cylinder rod is provided with a detection rod 5, and a displacement sensor 16 is provided at the tail of the detection hydraulic cylinder 4. The detection hydraulic cylinder 4 has two strokes, of which the two detection hydraulic cylinders 4 at the bottom have larger strokes, and the side and upper detection hydraulic cylinders 4 have smaller strokes, and the specific formation is determined according to the actual working conditions.

[0060] Generally, three rollers are arranged on the adjustable frame core 15, which are evenly distributed at intervals of 120° along the circumferential direction. There are two types of roller arrangements, one is on the left side ( Figure 5 The left side "Y" in the middle, and the right side ( Figure 5 On the right side "Y" in the figure, the rollers of the adjustable frame movement of the two roller arrangement forms are deflected 60° in the circumferential direction. Therefore, the calibration device of the present invention arranges 6 detection hydraulic cylinders 4 on the annular frame 3 to meet the calibration use of the two adjustable frame movements 15.

[0061] Further, if Figure 1 , Figure 2 As shown, side supports 2 are symmetrically arranged on both sides of the annular frame 3 , and a bottom support 14 is arranged at the bottom of the annular frame 3 to realize the positioning and installation of the annular frame 3 .

[0062] The working principle of the adjustable frame core calibration device of the pipe jacking machine of the present invention is as follows:

[0063] a. Figure 6 As shown, the adjustable frame movement 15 is placed on the movement loading trolley 1, and the transverse hydraulic cylinder 10 is connected to the movement loading trolley 1 through the fork 13, and the transverse hydraulic cylinder 10 drives the movement loading trolley 1 to move on the transverse track structure (V-shaped track 7, flat track 8);

[0064] b. The center line of the roller pass on the adjustable frame core 15 mounted on the core support structure is coaxial with the center line of the calibration block 11, such as Figure 7 As shown, after the movement loading carriage 1 moves to the calibration position (or called the calibration position), the calibration block 11 is located between the rollers on the adjustable frame movement 15;

[0065] c. The detection cylinder rod of the detection hydraulic cylinder 4 extends out, and the detection hydraulic cylinder 4 drives the detection rod 5 to press against the roller in the adjustable frame movement 15. The roller can slide radially in the slideway in the adjustable frame movement 15 (existing technology, working principle of the adjustable frame movement 15), and the bottom of the roller groove (existing technology) is pressed against the calibration block 11. The displacement sensor 16 detects and outputs the displacement data of the detection hydraulic cylinder 4 pushing the detection rod 5 when the roller abuts against the calibration block 11;

[0066] Fix the calibration block 11 at the center line of the roller hole profile. The roller and the calibration block 11 abut against each other, which simulates the state of the roller rolling the workpiece to be rolled into a product with required specifications during production. At this time, the data obtained is the data required to produce the product with required specifications. The production hydraulic cylinder (online servo cylinder) on the production system can move according to the data to roll the product with required specifications.

[0067] d. The displacement data (position value) of the displacement sensor 16 is the position of the roll gap when the roll is in the rolling position, which can be used to calibrate the initial rolling position of the online servo cylinder. The control unit receives the displacement data output by the displacement sensor 16 and transmits the displacement data to the production control system (existing technology).

[0068] The principle is that when the rollers press the calibration block 11, the system records the detection value (displacement data) of the displacement sensor 16 of the detection drive unit (detection hydraulic cylinder 4). At this time, the value of the displacement sensor 16 corresponds to the roller pressing position value, which can then be converted into the roller gap value. At the same time, the roller pressing position value is transmitted to the online production control system. When rolling a rolled piece corresponding to the specification size of the calibration block 11, the pressing hydraulic cylinder of the adjustable frame of the pipe jacking machine on the production line presses down according to the data detected by the calibration device for the adjustable frame of the pipe jacking machine of the present invention.

[0069] As described above, the adjustable frame movement calibration device of the pipe jacking machine of the present invention has the following beneficial effects:

[0070] In the present invention, a detection drive unit, a detection rod and a calibration block are used to automatically detect the roll gap of the rolling mill. The device structure is similar to the online working principle of the adjustable frame, and both adopt the method of radial straight line pressing down, so the roll gap detection data is accurate; at the same time, the control unit configured in the present invention has the function of data transmission, and realizes real-time transmission of detection data, which is the basis for realizing intelligent manufacturing of the roll room of the steel pipe production line. The detected data can be transmitted to the control system and process model of the rolling production line in real time to realize automated production; the present invention completes the roll gap measurement of the movement of the adjustable frame of the top pipe, replaces manual detection, can improve the work efficiency and detection accuracy of the movement assembly and detection, and realizes the intelligent operation level of the factory. The present invention has a compact structure, is easy to use, and has high work efficiency, which can meet the working requirements of the roll room.

[0071] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A device for calibrating the adjustable frame movement of a pipe jacking machine, characterized in that: include, An annular frame with a horizontal central axis, wherein one axial end of the annular frame is provided with a movement support structure that can move along its axial direction to transport the adjustable frame movement into the annular frame; The other axial end of the annular frame is extended into the annular frame to be provided with a calibration block which can be detachably connected and used as a rolling sample, and the center line of the roll hole profile on the adjustable frame movement loaded on the movement support structure is coaxially arranged with the center line of the calibration block; a plurality of detection rods are arranged on the annular frame at intervals along the circumferential direction and can move radially, and the detection rods are connected with a detection drive unit, and the detection drive unit drives the detection rods to press against the rolls in the adjustable frame movement until the rolls abut against the calibration block, and the detection drive unit is provided with a displacement sensor, and the displacement sensor detects and outputs the displacement data of the detection rod pushed by the detection drive unit when the rolls abut against the calibration block; The control unit is electrically connected to the displacement sensor, receives the displacement data output by the displacement sensor and transmits the displacement data to a production control system.

2. The adjustable frame movement calibration device for a pipe jacking machine according to claim 1, characterized in that: It also includes a transverse track structure extending axially from the annular frame, and the core support structure can move axially along the annular frame along the transverse track structure.

3. The adjustable frame movement calibration device for a pipe jacking machine according to claim 2, characterized in that: The transverse track structure comprises a V-shaped track and a flat track which are arranged in parallel and at intervals, and the bottom end of the movement support structure is provided with a first groove and a second groove which are respectively sleeved on the V-shaped track and the flat track.

4. The adjustable frame movement calibration device for a pipe jacking machine according to claim 3, characterized in that: A track base is arranged at one axial end of the annular frame, and the V-shaped track and the flat track are fixedly arranged on the track base and the annular frame.

5. The adjustable frame movement calibration device for a pipe jacking machine according to claim 1, characterized in that: The movement support structure comprises a movement mounting trolley, the movement mounting trolley is provided with a movement accommodating groove with a top opening, and the side wall of the movement accommodating groove is provided with a side plate slot for fixing the adjustable frame movement.

6. The adjustable frame movement calibration device for a pipe jacking machine according to claim 1, characterized in that: A transverse driving part is arranged at the other axial end of the annular frame, and the transverse driving part is fixedly connected to the movement supporting structure to drive the movement supporting structure to move along the axial direction of the annular frame.

7. The adjustable frame movement calibration device for a pipe jacking machine according to claim 6, characterized in that: The transverse driving part is a transverse hydraulic cylinder, which includes a transverse cylinder barrel and a transverse cylinder rod. The transverse cylinder barrel is fixed to the other axial end of the annular frame, a fork is provided at the protruding end of the transverse cylinder rod, and a connecting rod extending in the direction of the transverse hydraulic cylinder is provided at the bottom of the movement support structure, and the fork is connected to the connecting rod.

8. The adjustable frame movement calibration device for a pipe jacking machine according to claim 6, characterized in that: The other axial end of the annular frame is detachably connected to a column, the transverse driving part is fixedly connected to the column, and the calibration block is detachably connected to the column.

9. The adjustable frame movement calibration device for a pipe jacking machine according to claim 1, characterized in that: A sample connection seat is fixedly arranged at the other axial end of the annular frame, and a connecting shaft is detachably connected to the sample connection seat, and the calibration block is coaxially and detachably connected to the connecting shaft.

10. The adjustable frame movement calibration device for a pipe jacking machine according to claim 1, characterized in that: The detection drive part is a detection hydraulic cylinder, and the central axis of the detection hydraulic cylinder is arranged along the radial direction of the annular frame; the detection hydraulic cylinder includes a detection cylinder barrel and a detection cylinder rod, the detection cylinder barrel is fixedly connected to the annular frame, the detection cylinder rod slides through the side wall of the annular frame, the detection rod is located in the annular frame, and the protruding end of the detection cylinder rod is fixedly connected to the detection rod.

11. The adjustable frame movement calibration device for a pipe jacking machine according to claim 10, characterized in that: Six detection hydraulic cylinders and detection rods are evenly spaced along the circumferential direction on the annular frame.

12. The adjustable frame movement calibration device for a pipe jacking machine according to claim 1, characterized in that: Side supports are symmetrically arranged on both sides of the annular frame, and a bottom support is arranged at the bottom of the annular frame.

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