Heavy screw mounting guide device

Abstract

The utility model discloses a heavy screw rod installation guide device, which belongs to the technical field of screw rod installation and comprises a bolt installation guide assembly, a screw rod installation guide assembly and a screw rod installation guide assembly, the lifting and lifting component comprises a plurality of hydraulic jacks symmetrically mounted on the top surface of the bearing fixed table and a lifting and lifting disc mounted at the top ends of the hydraulic jacks; the guiding assembly comprises a horizontal U-shaped guiding part, namely a first L-shaped guiding rod, welded to the outer wall of the peripheral side of the lifting and lifting disc, and a guiding and fixing cap disc welded to the other end of the U-shaped guiding part; a lower guide sleeve piece used for bearing the bottom end of a screw is longitudinally and rotationally embedded in the top face of the lifting disc, an upper guide sleeve piece used for bearing the top end of a pressing screw is longitudinally and rotationally embedded in the guide fixing cap disc, and a servo motor is installed on the top face of the guide fixing cap disc. And an output shaft of the servo motor penetrates through the guide fixed cap disc to drive the upper guide sleeve piece to rotate.

Description

Technical Field

[0001] The utility model belongs to the technical field of screw installation, in particular to a guiding device for installing heavy screws. Background Art

[0002] With the continuous progress of China's industrial era, in the fields of design, manufacturing, and installation of hydro-generator units, China has achieved a leapfrog development from "following" to "running side by side" and then to "leading". When installing the tightening screws of the spiral case stay ring of a power station water turbine, the mass of a single screw reaches 165 kg. Coupled with the limited space at the construction site and the inability to use lifting machinery, it undoubtedly increases the difficulty of on-site installation.

[0003] During the installation of existing heavy screws, manual labor or simple mechanical auxiliary tools are usually used to complete the screw installation. This traditional installation method has the following problems and disadvantages. Manual installation is difficult to ensure the perpendicularity and alignment accuracy of the screws. Especially when installing large and heavy screws, deviations are likely to occur, affecting the quality of subsequent construction. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a guiding device for installing heavy screws to solve the problems raised in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A guiding device for installing heavy screws, comprising:

[0006] A bolt installation guiding assembly, including a tower-shaped load-bearing rod and a load-bearing fixing platform installed on its top surface;

[0007] A lifting component, including a plurality of hydraulic jacks symmetrically installed on the top surface of the load-bearing fixing platform and a lifting tray installed at the top of the hydraulic jacks;

[0008] A guiding component, including a horizontal U-shaped guiding member welded to the outer wall of the circumference of the lifting tray, namely a first L-shaped guiding rod, and a guiding fixing cap plate welded to the other end of the U-shaped guiding member;

[0009] Wherein, a lower guiding sleeve member for bearing the bottom end of the screw is longitudinally and rotatably embedded in the top surface of the lifting tray, and an upper guiding sleeve member for bearing the top end of the pressing screw is longitudinally and rotatably embedded in the guiding fixing cap plate. A servo motor is installed on the top surface of the guiding fixing cap plate. The output shaft of the servo motor penetrates the guiding fixing cap plate to drive the upper guiding sleeve member to rotate, so that the screw rotates and is screwed between the upper guiding sleeve member and the lower guiding sleeve member into the corresponding bolt hole at the bottom of the stay ring.

[0010] Preferably, in this solution, a lower sealing bearing is longitudinally embedded in the middle position of the top surface of the lifting and supporting disc, the lower guiding sleeve is in interference fit with the inner ring of the lower sealing bearing, and a rotating mounting cylinder in a convex shape is embedded in the guiding and fixing cap disc from bottom to top.

[0011] Preferably, in this solution, the top of the rotating mounting cylinder has a driving shaft cylinder, and a shaft hole for connecting the output shaft of the servo motor is provided in the middle position of the top surface of the driving shaft cylinder.

[0012] Preferably, in this solution, an upper sealing bearing is in interference fit with the outer wall on the circumferential side of the driving shaft cylinder, and the upper sealing bearing rotates inside the guiding and fixing cap disc, so that the upper sealing bearing and the lower sealing bearing assist the screw rod to rotate.

[0013] Preferably, in this solution, the U-shaped guiding component includes a first L-shaped guiding rod welded to the outer wall on the circumferential side of the lifting and supporting disc and a second L-shaped guiding rod welded to the outer wall on the circumferential side of the guiding and fixing cap disc and located directly above the first L-shaped guiding rod.

[0014] Preferably, in this solution, a lifting and adjusting component is arranged between the first L-shaped guiding rod and the second L-shaped guiding rod. The lifting and adjusting component includes a hydraulic lifting column fixedly installed on the top surface of the first L-shaped guiding rod, and the top lifting end of the hydraulic lifting column is fixedly connected to the bottom end of the second L-shaped guiding rod.

[0015] Preferably, in this solution, lower ear plate parts are symmetrically welded to the outer walls on both sides of the top end of the first L-shaped guiding rod, and upper ear plate parts are symmetrically welded to the outer walls on both sides of the bottom end of the second L-shaped guiding rod.

[0016] Preferably, in this solution, positioning vertical rod parts are welded to the bottom surfaces of the two upper ear plate parts, and the two positioning vertical rod parts respectively penetrate through the two lower ear plate parts longitudinally.

[0017] Preferably, in this solution, lower rib plate parts are welded at the included angle at the bottom of the first L-shaped guiding rod, and upper rib plate parts are symmetrically welded between the top end of the second L-shaped guiding rod and the guiding and fixing cap disc. And, an installation base is welded to the bottom end of the tower-shaped load-bearing rod.

[0018] Compared with the prior art, the technical effects and advantages of the present utility model:

[0019] This heavy-duty screw installation guiding device realizes the automatic lifting and precise guiding of the screw through the coordinated work of the lifting component and the guiding component, thus greatly improving the installation efficiency of the screw. The U-shaped guiding structure formed by the first L-shaped guiding rod and the second L-shaped guiding rod in the guiding component, as well as the combined use of the upper and lower guiding sleeve parts, ensure the precise guiding of the screw during lifting and rotation, thereby improving the installation accuracy. The lifting component realizes the vertical lifting of the screw through a hydraulic jack, and the guiding component ensures the precise guiding and rotation of the screw during lifting through the U-shaped guiding structure composed of the first L-shaped guiding rod and the second L-shaped guiding rod and the rotational cooperation of the upper and lower guiding sleeve parts, enabling the screw to remain stable during lifting and rotation, improving the installation accuracy and efficiency. By driving the rotation of the upper guiding sleeve part with a servo motor, the automatic tightening of the screw is realized, further simplifying the operation process and reducing the labor intensity;

[0020] By driving the rotation of the upper guiding sleeve part with a servo motor, the automatic tightening of the screw is realized, simplifying the complexity of manual operation and reducing the operation difficulty. The automated lifting and tightening functions relieve the physical burden of the operator and reduce the labor intensity. Through the precise cooperation of the guiding component and the lifting component, potential safety hazards during the operation are reduced, and the safety of the entire installation process is improved. Brief Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the present invention;

[0023] Figure 2 It is a schematic connection structure diagram of the first L-shaped guiding rod and the second L-shaped guiding rod of the present invention;

[0024] Figure 3 It is a schematic connection structure diagram of the first L-shaped guiding rod of the present invention;

[0025] Figure 4 It is a schematic disassembled state structure diagram of the rotating installation cylinder and the upper guiding sleeve part of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the rotating installation cylinder of the present invention.

[0027] Explanation of the Reference Numerals in the Drawings:

[0028] In the figure: 1. Bolt installation guiding assembly; 2. Tower-shaped load-bearing rod; 3. Installation base; 4. Load-bearing fixed platform; 5. Lifting and hoisting disc; 6. First L-shaped guiding rod; 7. Second L-shaped guiding rod; 8. Guiding fixed cap disc; 9. Lifting and hoisting component; 10. Guiding component; 11. Lifting and adjusting component; 12. Hydraulic jack; 13. Lower guiding sleeve component; 14. Lower sealing bearing; 15. Servo motor; 16. Hydraulic lifting column; 17. Positioning vertical rod component; 18. Lower ear plate component; 19. Lower rib plate component; 20. Upper ear plate component; 21. Rotating installation cylinder; 22. Upper guiding sleeve component; 23. Upper rib plate component; 24. Driving shaft cylinder; 25. Shaft hole; 26. Upper sealing bearing. Detailed implementation manners

[0029] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some technical features well known to those skilled in the art are not described.

[0030] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the figures shown in the present utility model, and are hereby explained together.

[0031] This embodiment provides a Figures 1 to 5 shown heavy-duty screw installation guiding device, including: bolt installation guiding assembly 1, lifting and hoisting component 9, guiding component 10; the bolt installation guiding assembly 1, as the core component of the whole device, is responsible for carrying all other components and ensuring their correct assembly and positioning, providing a stable platform for other components to work together to complete the bolt installation process, and improving the stability and reliability of the whole device.

[0032] In this embodiment, the bolt installation guiding assembly 1 includes a tower-shaped load-bearing rod 2 and a load-bearing fixed platform 4 installed on its top surface; the tower-shaped load-bearing rod 2, as the main support structure of the whole device, bears the weight of the device, ensures that the device will not tip over during use, and increases the overall stability of the device. The load-bearing fixed platform 4 provides a support platform for the lifting and hoisting component 9. As a part of the load-bearing structure, it supports the lifting and hoisting component 9 and other related components, ensuring the stable operation of the lifting and hoisting component 9.

[0033] In this embodiment, the lifting component 9 includes multiple hydraulic jacks 12 symmetrically installed on the top surface of the load-bearing fixed platform 4 and a lifting tray 5 installed at the top ends of the hydraulic jacks 12; the lifting tray 5 is used to carry bolts and control its lifting through the hydraulic jacks 12 to achieve the vertical lifting of the bolts, enabling the bolts to accurately align with the installation positions. The hydraulic jacks 12 provide power for the lifting component 9, and the lifting and lowering of the lifting tray 5 is realized through hydraulic drive, providing a stable and powerful lifting force.

[0034] In this embodiment, the guiding component 10 includes a horizontal U-shaped guiding part, i.e., the first L-shaped guiding rod 6, welded to the outer wall of the peripheral side of the lifting tray 5, and a guiding fixed cap plate 8 welded to the other end of the U-shaped guiding part; the guiding fixed cap plate 8 fixes the position of the guiding component 10, supports the upper guiding sleeve part 22 and fixes the structure of the entire guiding system, ensuring the stability of guiding. The first L-shaped guiding rod 6, as a part of the guiding component 10, provides support for the guiding of the screw rod, forms a U-shaped guiding structure together with the second L-shaped guiding rod 7, restricts the lateral movement of the screw rod, and ensures that the screw rod will not deviate during the lifting process.

[0035] In this embodiment, a lower guiding sleeve part 13 for carrying the bottom end of the screw rod is longitudinally and rotatably embedded in the top surface of the lifting tray 5, an upper guiding sleeve part 22 for carrying the top end of the pressing screw rod is longitudinally and rotatably embedded inside the guiding fixed cap plate 8, and a servo motor 15 is installed on the top surface of the guiding fixed cap plate 8. The output shaft of the servo motor 15 penetrates through the guiding fixed cap plate 8 to drive the upper guiding sleeve part 22 to rotate, so that the screw rod rotates and screws into the corresponding bolt holes at the bottom of the seat ring between the upper guiding sleeve part 22 and the lower guiding sleeve part 13.

[0036] In this embodiment, a lower sealing bearing 14 is longitudinally embedded in the middle position of the top surface of the lifting tray 5, the lower guiding sleeve part 13 is in interference fit with the inner ring of the lower sealing bearing 14, and a convex-shaped rotating installation cylinder 21 is longitudinally embedded from bottom to top inside the guiding fixed cap plate 8. The rotating installation cylinder 21 serves as the installation base of the driving shaft cylinder 24, supports the driving shaft cylinder 24 and is connected to the servo motor 15 through it, ensuring the stable rotation of the driving shaft cylinder 24.

[0037] In this embodiment, the top of the rotating installation cylinder 21 has a driving shaft cylinder 24. A shaft hole 25 for connecting the output shaft of the servo motor 15 is opened at the middle position of the top surface of the driving shaft cylinder 24. An upper sealing bearing 26 is in interference fit with the outer wall of the peripheral side of the driving shaft cylinder 24, and the upper sealing bearing 26 rotates inside the guiding fixed cap plate 8, so that the upper sealing bearing 26 and the lower sealing bearing 14 assist the screw rod to rotate. The driving shaft cylinder 24 transmits the power of the servo motor 15 to the upper guiding sleeve part 22 and is connected to the output shaft of the servo motor 15 through the shaft hole 25, ensuring the effective transmission of power.

[0038] In this embodiment, the U-shaped guiding component includes a first L-shaped guiding rod 6 welded to the outer wall of the circumferential side of the lifting and supporting disc 5 and a second L-shaped guiding rod 7 welded to the outer wall of the circumferential side of the guiding and fixing cap disc 8 and located directly above the first L-shaped guiding rod 6. An elevating and adjusting assembly 11 is arranged between the first L-shaped guiding rod 6 and the second L-shaped guiding rod 7. The elevating and adjusting assembly 11 includes a hydraulic elevating column 16 fixedly installed on the top surface of the first L-shaped guiding rod 6. The top elevating end of the hydraulic elevating column 16 is fixedly connected to the bottom end of the second L-shaped guiding rod 7. Lower ear plate members 18 are symmetrically welded to the outer walls on both sides of the top end of the first L-shaped guiding rod 6. Upper ear plate members 20 are symmetrically welded to the outer walls on both sides of the bottom end of the second L-shaped guiding rod 7. Positioning vertical rod members 17 are welded to the bottom surfaces of the two upper ear plate members 20. The two positioning vertical rod members 17 respectively penetrate through the two lower ear plate members 18 longitudinally.

[0039] In this embodiment, the second L-shaped guiding rod 7 and the first L-shaped guiding rod 6 together form a U-shaped guiding structure. Cooperating with the first L-shaped guiding rod 6, it ensures that the screw rod rises along a predetermined path, improving the accuracy of the screw rod guiding. The hydraulic elevating column 16 adjusts the height of the guiding assembly 10, changes the position of the guiding assembly 10 through hydraulic drive, enabling the guiding assembly 10 to adapt to screw rods of different lengths. The positioning vertical rod members 17 fix the position of the guiding assembly 10. Through cooperation with the lower ear plate members 18, it ensures that the guiding assembly 10 does not undergo horizontal displacement, improving the stability of the guiding assembly 10.

[0040] In this embodiment, lower rib plate members 19 are welded at the bottom included angle of the first L-shaped guiding rod 6. Upper rib plate members 23 are symmetrically welded between the top end of the second L-shaped guiding rod 7 and the guiding and fixing cap disc 8. And, an installation base 3 is welded to the bottom end of the tower-shaped load-bearing rod 2. The lower rib plate members 19 enhance the structural strength of the first L-shaped guiding rod 6, increase the rigidity of the first L-shaped guiding rod 6 through welding, and improve the load-bearing capacity of the first L-shaped guiding rod 6. The upper rib plate members 23 enhance the structural strength of the second L-shaped guiding rod 7, increase the rigidity of the second L-shaped guiding rod 7 through welding, and improve the load-bearing capacity of the second L-shaped guiding rod 7.

[0041] Working principle:

[0042] For this heavy-duty screw rod installation guiding device, the device is fixed to the ground through the installation base 3. According to the size of the screw rod to be installed, the elevating and adjusting assembly 11 is used to adjust the height of the guiding assembly 10 to make it suitable for the length of the screw rod to be installed. The screw rod to be installed is placed in the lower guiding sleeve member 13 of the lifting and supporting disc 5. At this time, the bottom end of the screw rod is supported by the lower guiding sleeve member 13.

[0043] Start the hydraulic jack 12, and the lifting plate 5 descends as the hydraulic jack 12 extends, lifting the screw out of the lower guide sleeve 13. As the lifting plate 5 descends, the screw is also lifted accordingly until the top of the screw contacts the upper guide sleeve 22 in the guide fixed cap plate 8. During this process, the U-shaped guide structure formed by the first L guide rod 6 and the second L guide rod 7 limits the lateral movement of the screw, ensuring that the screw can be lifted in a straight line without deflection.

[0044] When the top of the screw contacts the upper guide sleeve 22, the servo motor 15 is started, and its output shaft is connected to the drive shaft cylinder 24 through the shaft hole 25, thereby driving the rotating mounting cylinder 21 and the upper guide sleeve 22 to rotate. The rotation of the upper guide sleeve 22 drives the screw to rotate, and at the same time, the lower guide sleeve 13 rotates on the lifting plate 5 through the lower sealing bearing 14 to assist the rotation of the screw. With the help of the upper sealing bearing 26 and the lower sealing bearing 14, the screw can rotate smoothly between the upper guide sleeve 22 and the lower guide sleeve 13, realizing the screwing action of the screw.

[0045] When the screw is rotated into place and the top of the screw is aligned with the corresponding bolt hole at the bottom of the seat ring, the rotation of the servo motor 15 is stopped. At this time, the screw is ready to be inserted into the bolt hole at the bottom of the seat ring. The hydraulic jack 12 continues to operate to make the lifting plate 5 continue to descend, and the screw descends accordingly and is inserted into the bolt hole at the bottom of the seat ring. When the screw is completely inserted into the bolt hole, the servo motor 15 is started again to make the screw further rotate and tighten it into place. After tightening is completed, the servo motor 15 is stopped, and the lifting plate 5 is raised to make the screw disengage from the guide assembly 10.

[0046] The lifting plate 5 is lifted to the initial position using the hydraulic jack 12 to prepare for the next screw installation.

[0047] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0048] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty screw installation guide device, characterized in that: include: The bolt installation guide assembly (1) comprises a tower-type load-bearing rod (2) and a load-bearing fixing platform (4) installed on the top surface thereof; A lifting component (9) comprises a plurality of hydraulic jacks (12) symmetrically mounted on the top surface of a load-bearing fixed platform (4) and a lifting plate (5) mounted on the top of the hydraulic jacks (12); The guide assembly (10) comprises a horizontal U-shaped guide component welded to the outer wall of the lifting plate (5), namely a first L-shaped guide rod (6), and a guide fixing cap plate (8) welded to the other end of the U-shaped guide component; Among them, the top surface of the lifting and lifting plate (5) is longitudinally rotated and embedded with a lower guide sleeve member (13) for supporting the bottom end of the screw rod, and the inner longitudinal rotation of the guide fixed cap plate (8) is embedded with an upper guide sleeve member (22) for supporting the top end of the downward pressing screw rod. A servo motor (15) is installed on the top surface of the guide fixed cap plate (8), and the output shaft of the servo motor (15) passes through the guide fixed cap plate (8) to drive the upper guide sleeve member (22) to rotate, so that the screw rod rotates between the upper guide sleeve member (22) and the lower guide sleeve member (13) and is screwed into the corresponding bolt hole at the bottom of the seat ring.

2. A heavy-duty screw installation guide device according to claim 1, characterized in that: A lower sealing bearing (14) is longitudinally embedded in the middle of the top surface of the lifting plate (5), and the lower guide sleeve (13) is interference-fitted in the inner ring of the lower sealing bearing (14). A convex-shaped rotating installation cylinder (21) is embedded in the interior of the guide fixed cap plate (8) from bottom to top.

3. A heavy-duty screw installation guide device according to claim 2, characterized in that: The top of the rotating installation cylinder (21) is provided with a driving shaft cylinder (24), and a shaft hole (25) for connecting the output shaft of the servo motor (15) is provided in the middle of the top surface of the driving shaft cylinder (24).

4. A heavy-duty screw installation guide device according to claim 3, characterized in that: An upper sealing bearing (26) is interference-fitted on the peripheral outer wall of the driving shaft cylinder (24), and the upper sealing bearing (26) rotates inside the guide fixed cap plate (8), so that the upper sealing bearing (26) and the lower sealing bearing (14) assist the screw to rotate.

5. A heavy-duty screw installation guide device according to claim 4, characterized in that: The U-shaped guide component comprises a first L-shaped guide rod (6) welded to the peripheral outer wall of the lifting plate (5) and a second L-shaped guide rod (7) welded to the peripheral outer wall of the guide fixing cap plate (8) and located directly above the first L-shaped guide rod (6).

6. A heavy-duty screw installation guide device according to claim 5, characterized in that: A lifting and adjusting assembly (11) is provided between the first L-shaped guide rod (6) and the second L-shaped guide rod (7), and the lifting and adjusting assembly (11) comprises a hydraulic lifting column (16) fixedly mounted on the top surface of the first L-shaped guide rod (6), and the top lifting end of the hydraulic lifting column (16) is fixedly connected to the bottom end of the second L-shaped guide rod (7).

7. A heavy-duty screw installation guide device according to claim 6, characterized in that: Lower ear plates (18) are symmetrically welded to the outer walls on both sides of the top end of the first L-shaped guide rod (6), and upper ear plates (20) are symmetrically welded to the outer walls on both sides of the bottom end of the second L-shaped guide rod (7).

8. A heavy-duty screw installation guide device according to claim 7, characterized in that: The bottom surfaces of the two upper ear plate members (20) are both welded with positioning upright rod members (17), and the two positioning upright rod members (17) respectively penetrate the two lower ear plate members (18) longitudinally.

9. A heavy-duty screw installation guide device according to claim 8, characterized in that: A lower rib plate (19) is welded at the bottom angle of the first L-shaped guide rod (6), and an upper rib plate (23) is symmetrically welded between the top end of the second L-shaped guide rod (7) and the guide fixing cap plate (8).

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