A vertical roll hydraulic cylinder rod anti-rotation device

Abstract

The utility model provides a kind of vertical roll hydraulic cylinder cylinder rod anti-rotation device, comprising: connecting plate, the connecting plate is connected with cylinder rod, the outer side of the one end of the connecting plate away from lever is fixed with first annular boss;Outer tube, the outer tube is located the outer side of first annular boss, the inner side of the one end of the outer tube adjacent lever is fixed with second annular boss, and second annular boss is located between first boss and cylinder rod;Cover plate, the cover plate is located the one end of outer tube away from cylinder rod, and pressure sensor is equipped between the cover plate and connecting plate;Guide piece, the guide piece is connected with connecting plate;Guide plate, the guide plate is opened with the axial direction parallel arrangement guide slot of cylinder rod, guide piece is located the inner side of guide slot, and guide plate is fixedly connected with rack.The utility model has beneficial effects: in the movement of cylinder rod, guide piece plays the role of guiding, prevent the relative rotation of cylinder rod, and then prevent the entanglement and fracture of the connecting line of pressure sensor.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel production equipment, and in particular relates to an anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder. Background Technology

[0002] In the steel production process, vertical rolling mills are often used to apply pressure to the side of steel billets. Hydraulic cylinders push the vertical roll supports to apply pressure. To monitor the pressure applied by the hydraulic cylinders, a pressure sensor is usually installed at the end of the output shaft of the hydraulic cylinder. During operation, the cylinder rod rotates irregularly due to vibration or deflection forces, causing the sensor's connecting wire to wrap around the outside of the cylinder rod. As the number of wrapping turns increases, the connecting wire becomes shorter, affecting the normal operation of the equipment. Furthermore, the pressure sensor is directly exposed on the outside and is easily contaminated by oil, affecting its service life. Summary of the Invention

[0003] In view of this, the present invention aims to provide an anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder, in order to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A vertical roller hydraulic cylinder rod anti-rotation device, characterized in that it comprises: a connecting plate connected to the cylinder rod, wherein a first annular boss is fixedly provided on the outer side of the end of the connecting plate away from the lever; an outer tube located outside the first annular boss, wherein a second annular boss is fixedly provided on the inner side of the end of the outer tube near the lever, the second annular boss being located between the first boss and the cylinder rod; a cover plate located at the end of the outer tube away from the cylinder rod, wherein a pressure sensor is provided between the cover plate and the connecting plate; a guide member connected to the connecting plate; and a guide plate having a guide groove arranged parallel to the axial direction of the cylinder rod, wherein the guide member is located inside the guide groove, and the guide plate being fixedly connected to the frame.

[0006] Furthermore, the cylinder rod has multiple second threaded holes at one end near the connecting plate, and the connecting plate has second through holes corresponding to the second threaded holes. The second connecting bolt passes through the second through hole and is threaded to the inside of the second threaded hole.

[0007] Furthermore, a pad is provided between the connecting plate and the pressure sensor. The connecting plate has a third threaded hole, and the pad has a third through hole corresponding to the third threaded hole. The third connecting bolt passes through the third through hole and is threaded to the inside of the third threaded hole.

[0008] The connecting plate has a positioning groove at one end near the pad, and a positioning boss is fixed on the end face of the pad near the connecting plate, with the positioning boss located inside the positioning groove.

[0009] Furthermore, the positioning boss is coaxially arranged with the pad, and the positioning groove is coaxially arranged with the connecting plate; a first limiting groove is opened on the end face of the connecting plate near the pad, and a second limiting groove is opened on the end face of the pad near the connecting plate; one end of the limiting pin is located inside the first limiting groove, and the other end is located inside the second limiting groove.

[0010] Furthermore, the pressure sensor is a wheel spoke tension / compression sensor;

[0011] A positioning ring is fixed on the end face of the pad near the wheel spoke tension and pressure sensor. The outer diameter of the positioning ring matches the inner diameter of the wheel spoke tension and pressure sensor, and the positioning ring is located inside the wheel spoke tension and pressure sensor.

[0012] The pad has a fourth threaded hole on the end face near the wheel spoke tension and pressure sensor, and the fourth connecting bolt passes through the fourth through hole on the wheel spoke tension and pressure sensor and is threaded to the inside of the fourth threaded hole.

[0013] Furthermore, the cover plate has a fifth through hole, and the fifth connecting bolt passes through the fifth through hole and is threaded into the inner side of the fourth threaded hole.

[0014] A clamping boss is fixed on the end face of the cover plate near the wheel spoke tension and pressure sensor, and the clamping boss corresponds to the input end of the wheel spoke tension and pressure sensor;

[0015] There is a gap between the cover plate and the outer tube.

[0016] Furthermore, a first annular groove is formed on the end face of the outer tube near the cylinder rod, and a first sealing ring is provided in the first annular groove;

[0017] An installation ring is fixed on the end face of the cover plate near the outer tube. The outer diameter of the installation ring matches the inner diameter of the outer tube. A second annular groove is opened on the outer side of the installation ring, and a second sealing ring is provided in the second annular groove. A connection hole is opened on the outer tube corresponding to the connection line of the wheel spoke tension and pressure sensor. The connection line is located inside the connection hole, and a sealing ring is provided between the connection hole and the connection line.

[0018] Furthermore, the guide component is a guide block, and a square boss is fixed at the lower end of the guide block. A square groove matching the square boss is opened on the outer wall of the outer tube. The square boss is located inside the square groove, and the width of the guide block matches the width of the guide groove.

[0019] A first through hole is opened at the bottom end of the square groove, and a first threaded hole corresponding to the first through hole is opened on the side wall of the connecting plate. The first connecting bolt passes through the guide block and is threadedly connected to the inside of the first threaded hole.

[0020] Furthermore, the guide is a rotating ring, and a square plate is provided between the rotating ring and the outer tube. A square groove matching the square plate is opened on the outer wall of the outer tube. The square plate is located inside the square groove, and the outer diameter of the rotating ring is smaller than the width of the guide groove.

[0021] A first through hole is opened at the bottom end of the square groove, and a first threaded hole corresponding to the first through hole is opened on the side wall of the connecting plate. The first connecting bolt passes through the swivel, the square plate, and the first through hole and is threaded to the inside of the first threaded hole. The swivel and the first connecting bolt are rotatably connected.

[0022] Furthermore, a collar is provided between the inner wall of the swivel and the first connecting bolt, and the outer diameter of the collar matches the inner diameter of the swivel;

[0023] The inner side of the rotating ring is provided with an annular limiting boss, the inner diameter of the annular limiting boss is larger than the diameter of the first connecting bolt, and a third annular boss is fixed on the outer side of the lower end of the collar, the third annular boss being located between the rotating ring and the mounting plate.

[0024] The collar is a structural component made of copper, and there is a gap between the head of the first connecting bolt and the annular limiting boss.

[0025] Compared with the prior art, the anti-rotation device for the cylinder rod of the vertical roller hydraulic cylinder described in this utility model has the following advantages:

[0026] The present invention discloses an anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder. During the movement of the cylinder rod, the guide component plays a guiding role, preventing relative rotation of the cylinder rod, and thus preventing the connecting wire of the pressure sensor from getting tangled or broken. Attached Figure Description

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0028] Figure 1 This is a three-dimensional structural diagram of the device described in an embodiment of the present utility model;

[0029] Figure 2 This is an exploded three-dimensional structural diagram of the device described in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the three-dimensional structure of the outer tube according to an embodiment of the present utility model;

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the cover plate according to an embodiment of the present utility model;

[0032] Figure 5This is a three-dimensional structural diagram of the pressure sensor described in an embodiment of the present invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the connecting plate described in an embodiment of the present utility model;

[0034] Figure 7 This is a first-view perspective three-dimensional structural diagram of the pad described in an embodiment of the present utility model;

[0035] Figure 8 This is a two-dimensional structural diagram of the pad described in an embodiment of the present invention from a second perspective.

[0036] Figure 9 This is a cross-sectional view of the device described in this embodiment of the invention at the fifth connecting bolt.

[0037] Figure 10 This is a cross-sectional view of the device described in this embodiment of the invention at the fourth connecting bolt.

[0038] Figure 11 This is a three-dimensional structural diagram of the guide member according to another embodiment of the present utility model;

[0039] Figure 12 This is a schematic cross-sectional view of the guide component according to another embodiment of the present utility model.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Cylinder rod; 2. Guide plate; 3. Outer tube; 4. Cover plate; 5. Pressure sensor; 6. Connecting plate; 7. Guide block; 8. Pad; 9. Square plate; 10. Collar; 11. Rotary ring; 12. First connecting bolt; 13. Fifth connecting bolt; 14. Third connecting bolt; 15. Second connecting bolt; 16. Fourth connecting bolt; 17. Limiting pin; 101. Second threaded hole; 201. Guide groove; 301. Second annular boss; 302. Square groove; 303. First through hole; 304. Connecting hole; 401. Mounting ring ; 402, Second annular groove; 403, Clamping boss; 404, Fifth through hole; 501, Input end; 502, Fourth through hole; 601, First annular boss; 602, Third threaded hole; 603, Second through hole; 604, First limiting groove; 605, Positioning groove; 606, First threaded hole; 701, Square boss; 801, Positioning ring; 802, Third through hole; 803, Fourth threaded hole; 804, Second limiting groove; 805, Positioning boss; 1001, Third annular boss; 1101, Annular limiting boss. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0043] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] like Figures 1 to 12 As shown, an anti-rotation device for the cylinder rod 1 of a vertical roller hydraulic cylinder is characterized by comprising: a connecting plate 6, which is connected to the cylinder rod 1, and a first annular boss 601 is fixedly provided on the outer side of the end of the connecting plate 6 away from the lever; an outer tube 3, which is located outside the first annular boss 601, and a second annular boss 301 is fixedly provided on the inner side of the end of the outer tube 3 near the lever, the second annular boss 301 being located between the first boss and the cylinder rod 1; a cover plate 4, which is located at the end of the outer tube 3 away from the cylinder rod 1, and a pressure sensor 5 is provided between the cover plate 4 and the connecting plate 6; a guide member, which is connected to the connecting plate 6; and a guide plate 2, which has a guide groove 201 arranged parallel to the axial direction of the cylinder rod 1, the guide member being located inside the guide groove 201, and the guide plate 2 being fixedly connected to the frame.

[0047] The cylinder rod 1 has multiple second threaded holes 101 at one end near the connecting plate 6. The connecting plate 6 has second through holes 603 corresponding to the second threaded holes 101. The second connecting bolts 15 pass through the second through holes 603 and are threaded to the inside of the second threaded holes 101. There are four second threaded holes 101. Each second bolt has a corresponding second connecting bolt 15. The connecting plate 6 is detachably connected to the cylinder rod 1 through the second bolts. The guide is connected to the cylinder rod 1 through the connecting plate 6, which improves the structural strength of the guide connection.

[0048] A pad 8 is provided between the connecting plate 6 and the pressure sensor 5. The connecting plate 6 has a third threaded hole 602, and the pad 8 has a third through hole 802 corresponding to the third threaded hole 602. The third connecting bolt 14 passes through the third through hole 802 and is threaded to the inside of the third threaded hole 602. The pad 8 is detachably connected to the connecting plate 6 by the third connecting bolt 14.

[0049] The connecting plate 6 has a positioning groove 605 at one end near the pad 8. A positioning boss 805 is fixed on the end face of the pad 8 near the connecting plate 6. The positioning boss 805 is located inside the positioning groove 605, and the positioning groove 605 plays a positioning role for the positioning boss 805.

[0050] The positioning boss 805 is coaxially arranged with the pad 8, and the positioning groove 605 is coaxially arranged with the connecting plate 6. A first limiting groove 604 is opened on the end face of the connecting plate 6 near the pad 8, and a second limiting groove 804 is opened on the end face of the pad 8 near the connecting plate 6. One end of the limiting pin 16 is located inside the first limiting groove 604, and the other end is located inside the second limiting groove 804. The limiting pin 16 plays the role of preventing the pad 8 and the connecting plate 6 from rotating relative to each other.

[0051] Pressure sensor 5 is a spoke tension and pressure sensor; a positioning ring 801 is fixed on the end face of the pad 8 near the spoke tension and pressure sensor. The outer diameter of the positioning ring 801 matches the inner diameter of the spoke tension and pressure sensor. The positioning ring 801 is located inside the spoke tension and pressure sensor. The positioning ring 801 plays a positioning role for the spoke tension and pressure sensor, improving the installation accuracy of the spoke tension and pressure sensor.

[0052] The pad 8 has a fourth threaded hole 803 on its end face near the wheel spoke tension / compression sensor. The fourth connecting bolt passes through the fourth through hole 502 on the wheel spoke tension / compression sensor and is threaded to the inside of the fourth threaded hole 803. There are eight fourth through holes 502 and four fourth connecting bolts, which are spaced apart.

[0053] The cover plate 4 has a fifth through hole 404. The fifth connecting bolt 13 passes through the fifth through hole 404 and the fourth through hole 502 and is threaded to the inside of the fourth threaded hole 803. There are four fifth connecting bolts 13, and the four fourth connecting bolts are spaced apart.

[0054] A clamping boss 403 is fixed on the end face of the cover plate 4 near the spoke tension and pressure sensor, and the clamping boss 403 corresponds to the input end 501 of the spoke tension and pressure sensor; the fifth connecting bolt 13 clamps the clamping boss 403 of the cover plate 4 onto the input end 501 of the spoke tension and pressure sensor.

[0055] There is a gap between the cover plate 4 and the outer tube 3. The existence of the gap facilitates the relative movement between the cover plate 4 and the outer tube 3 during the process of being subjected to pressure.

[0056] A first annular groove is provided on the end face of the outer tube 3 near the cylinder rod 1, and a first sealing ring is provided in the first annular groove. The first sealing ring improves the sealing between the outer tube 3 and the lever.

[0057] A mounting ring 401 is fixedly mounted on the end face of the cover plate 4 near the outer tube 3. The outer diameter of the mounting ring 401 matches the inner diameter of the outer tube 3. A second annular groove 402 is opened on the outer side of the mounting ring 401, and a second sealing ring is provided in the second annular groove 402. The second sealing ring improves the sealing performance between the mounting ring 401 and the inner wall of the outer tube 3. A connecting hole 304 is opened on the outer tube 3, corresponding to the connecting line of the spoke tension and pressure sensor. The connecting line is located inside the connecting hole 304, and a sealing ring is provided between the connecting hole 304 and the connecting line. The sealing ring is a structural component made of rubber, which improves the sealing performance between the connecting line and the inner wall of the connecting hole 304. Through the setting of the first sealing ring, the second sealing ring, and the sealing ring, the sealing performance inside the outer tube 3 can be improved, preventing oil from entering the inner side of the outer tube 3 and ensuring the service life of the pressure sensor 5.

[0058] In some embodiments, the guide is a guide block 7, with a square boss 701 fixed at the lower end of the guide block 7. A square groove 302 matching the square boss 701 is opened on the outer wall of the outer tube 3. The square boss 701 is located inside the square groove 302. The width of the guide block 7 matches the width of the guide groove 201. A first through hole 303 is opened at the bottom end of the square groove 302. A first threaded hole 606 corresponding to the first through hole 303 is opened on the side wall of the connecting plate 6. The first connecting bolt 12 passes through the guide block 7 and is threaded to the inner side of the first threaded hole 606 through the first through hole 303. The square boss 701 acts on the guide block 7 to prevent the guide block 7 from rotating along the first connecting bolt 12. The guide groove 201 guides the guide block 7 during its movement along the moving direction of the cylinder rod 1, thereby preventing the cylinder rod 1 from rotating.

[0059] The guide component is a rotating ring 11. A square plate 9 is provided between the rotating ring 11 and the outer tube 3. A square groove 302 matching the square plate 9 is opened on the outer wall of the outer tube 3. The square plate 9 is located inside the square groove 302. The outer diameter of the rotating ring 11 is smaller than the width of the guide groove 201. A first through hole 303 is opened at the bottom end of the square groove 302. A first threaded hole 606 corresponding to the first through hole 303 is opened on the side wall of the connecting plate 6. A first connecting bolt 12 passes through the rotating ring 11, the square plate 9, and the first through hole 303 and is threaded to the inside of the first threaded hole 606. The rotating ring 11 is rotatably connected to the first connecting bolt 12. During the movement of the cylinder rod 1, the rotating ring 11 rotates, reducing the friction between the guide component and the guide groove 201.

[0060] A collar 10 is provided between the inner wall of the rotating ring 11 and the first connecting bolt 12. The outer diameter of the collar 10 matches the inner diameter of the rotating ring 11. An annular limiting boss 1101 is provided on the inner side of the rotating ring 11. The inner diameter of the annular limiting boss 1101 is larger than the diameter of the first connecting bolt 12. A third annular boss 1001 is fixed on the outer side of the lower end of the collar 10. The third annular boss 1001 is located between the rotating ring 11 and the mounting plate. The collar 10 is a structural component made of copper. There is a gap between the head of the first connecting bolt 12 and the annular limiting boss 1101. The collar 10 reduces the friction between the rotating ring 11 and the first connecting bolt 12.

[0061] Work process:

[0062] In this implementation, the connecting plate 6 is connected to the cylinder rod 1 by the second connecting bolt 15. The first annular platform presses against the second annular boss 301 and the cylinder rod 1. Then, the pad 8 is threadedly connected to the connecting plate 6 by the third connecting bolt 14 (the pad 8 is designed to facilitate the installation of the spoke tension and pressure sensor. Due to the size limitation of the spoke tension and pressure sensor, if the spoke tension and pressure sensor is directly threaded to the connecting plate 6, the cover plate 4 cannot be connected). The fourth connecting bolt presses the spoke tension and pressure sensor onto the pad 8. Then, the fifth connecting bolt 13 pre-presses the cover plate 4 onto the input end 501 of the spoke tension and pressure sensor. The pressure applied by the lever is transmitted to the vertical roller support through the connecting plate 6, the pad 8, the spoke tension and pressure sensor, and the cover plate 4. The outer tube 3 is subjected to only a small force, which improves the detection accuracy of the spoke tension and pressure sensor.

[0063] During the movement of cylinder rod 1, the guide component plays a guiding role, preventing relative rotation of cylinder rod 1, and thus preventing the connecting wire of the wheel spoke tension and pressure sensor from getting tangled and broken.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for preventing rotation of a vertical roller hydraulic cylinder rod, characterized in that, include: A connecting plate (6) is connected to the cylinder rod (1), and a first annular boss (601) is fixed on the outer side of the end of the connecting plate (6) away from the lever; The outer tube (3) is located outside the first annular boss (601). The inner side of the outer tube (3) near the lever is fixed with a second annular boss (301). The second annular boss (301) is located between the first boss and the cylinder rod (1). Cover plate (4), the cover plate (4) is located at the end of the outer tube (3) away from the cylinder rod (1), and a pressure sensor (5) is provided between the cover plate (4) and the connecting plate (6); A guide member, which is connected to the connecting plate (6); Guide plate (2), the guide plate (2) has a guide groove (201) that is parallel to the axial direction of the cylinder rod (1), the guide member is located inside the guide groove (201), and the guide plate (2) is fixedly connected to the frame.

2. The anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder according to claim 1, characterized in that: The cylinder rod (1) has multiple second threaded holes (101) at one end near the connecting plate (6). The connecting plate (6) has a second through hole (603) corresponding to the second threaded hole (101). The second connecting bolt (15) passes through the second through hole (603) and is threaded to the inside of the second threaded hole (101).

3. The anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder according to claim 1, characterized in that: A pad (8) is provided between the connecting plate (6) and the pressure sensor (5). A third threaded hole (602) is opened on the connecting plate (6). A third through hole (802) corresponding to the third threaded hole (602) is opened on the pad (8). A third connecting bolt (14) passes through the third through hole (802) and is threaded to the inside of the third threaded hole (602). The connecting plate (6) has a positioning groove (605) at one end near the pad (8), and a positioning boss (805) is fixed on the end face of the pad (8) near the connecting plate (6), and the positioning boss (805) is located inside the positioning groove (605).

4. The anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder according to claim 3, characterized in that: The positioning boss (805) is coaxially arranged with the pad (8), and the positioning groove (605) is coaxially arranged with the connecting plate (6); The connecting plate (6) has a first limiting groove (604) on the end face near the pad (8), and the pad (8) has a second limiting groove (804) on the end face near the connecting plate (6). One end of the limiting pin (16) is located inside the first limiting groove (604), and the other end is located inside the second limiting groove (804).

5. The anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder according to claim 3, characterized in that: The pressure sensor (5) is a spoke tension / compression sensor; A positioning ring (801) is fixed on the end face of the pad (8) near the spoke tension and pressure sensor. The outer diameter of the positioning ring (801) matches the inner diameter of the spoke tension and pressure sensor. The positioning ring (801) is located inside the spoke tension and pressure sensor. The pad (8) has a fourth threaded hole (803) on the end face near the spoke tension and pressure sensor. The fourth connecting bolt passes through the fourth through hole (502) on the spoke tension and pressure sensor and is threaded to the inside of the fourth threaded hole (803).

6. The anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder according to claim 5, characterized in that: The cover plate (4) has a fifth through hole (404), and the fifth connecting bolt (13) passes through the fifth through hole (404) and the fourth through hole (502) is threaded to the inside of the fourth threaded hole (803); A clamping boss (403) is fixed on the end face of the cover plate (4) near the spoke tension and pressure sensor, and the clamping boss (403) corresponds to the input end (501) of the spoke tension and pressure sensor. There is a gap between the cover plate (4) and the outer tube (3).

7. The anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder according to claim 1, characterized in that: The outer tube (3) has a first annular groove on the end face near the cylinder rod (1), and a first sealing ring is provided in the first annular groove; An installation ring (401) is fixedly provided on the end face of the cover plate (4) near the outer tube (3). The outer diameter of the installation ring (401) matches the inner diameter of the outer tube (3). A second annular groove (402) is opened on the outer side of the installation ring (401). A second sealing ring is provided in the second annular groove (402). The outer tube (3) has a connection hole (304) corresponding to the connection line of the wheel spoke tension and pressure sensor. The connection line is located inside the connection hole (304), and a sealing ring is provided between the connection hole (304) and the connection line.

8. The anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder according to claim 1, characterized in that: The guide component is a guide block (7), and a square boss (701) is fixed at the lower end of the guide block (7). A square groove (302) matching the square boss (701) is opened on the outer wall of the outer tube (3). The square boss (701) is located inside the square groove (302). The width of the guide block (7) matches the width of the guide groove (201). The bottom end of the square groove (302) has a first through hole (303), and the side wall of the connecting plate (6) has a first threaded hole (606) corresponding to the first through hole (303). The first connecting bolt (12) passes through the guide block (7) and the first through hole (303) and is threaded to the inside of the first threaded hole (606).

9. The anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder according to claim 1, characterized in that: The guide is a rotating ring (11), and a square plate (9) is provided between the rotating ring (11) and the outer tube (3). A square groove (302) matching the square plate (9) is opened on the outer wall of the outer tube (3). The square plate (9) is located inside the square groove (302). The outer diameter of the rotating ring (11) is smaller than the width of the guide groove (201). The bottom end of the square groove (302) has a first through hole (303), and the side wall of the connecting plate (6) has a first threaded hole (606) corresponding to the first through hole (303). The first connecting bolt (12) passes through the swivel (11), the square plate (9), and the first through hole (303) and is threaded to the inside of the first threaded hole (606). The swivel (11) is rotatably connected to the first connecting bolt (12).

10. The anti-rotation device for the cylinder rod of a vertical roller hydraulic cylinder according to claim 9, characterized in that: A collar (10) is provided between the inner wall of the swivel (11) and the first connecting bolt (12), and the outer diameter of the collar (10) matches the inner diameter of the swivel (11); The inner side of the rotating ring (11) is provided with an annular limiting boss (1101), the inner diameter of the annular limiting boss (1101) is larger than the diameter of the first connecting bolt (12), and a third annular boss (1001) is fixed on the outer side of the lower end of the collar (10), the third annular boss (1001) is located between the rotating ring (11) and the mounting plate; The collar (10) is a structural component made of copper, and there is a gap between the head of the first connecting bolt (12) and the annular limiting boss (1101).

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