A load pitch adjustment locking device and its locking method

Abstract

This invention relates to a load pitch adjustment and locking device and its locking method, belonging to the field of mechanical structure design technology. It solves the technical problems of uneven stress distribution, easy cracking at the load fixing point, low durability, and amplified local vibration caused by load tightening under complex mechanical environments. The load pitch adjustment and locking device of this invention is used for tightening a load under complex mechanical environments, and includes an adjustment part and a support part; the upper and lower ends of the load are respectively connected to the adjustment part and the support part; the support part is an assembly of arc-shaped plates; angle scales are provided on the arc-shaped plates; the adjustment part is provided with an adjustment rotation unit; the center of the arc-shaped plates of the support part is located at the rotation center of the adjustment rotation unit. The device of this invention has a simple structure and is convenient to install and adjust; the method of this invention is simple in steps and can ensure that the angle of the load can be freely adjusted before tightening, the stress distribution is uniform after tightening, and structural damage is not easily caused.

Description

Technical Field

[0001] This invention relates to the field of mechanical installation technology, and in particular to a load pitch adjustment locking device and its locking method. Background Technology

[0002] In some scientific experiments and testing processes, it is often necessary to place rotating loads in complex mechanical environments that include factors such as vibration and impact. For example, the load may need to be subjected to high power spectral density vibration (root mean square greater than 9G) and high-intensity impact (impact conditions between 60-80G), with occasional angle adjustments and repeated locking.

[0003] Currently, both domestically and internationally, pitch adjustment is mainly achieved through a precise fit between a rotating shaft and support feet, or angle adjustment via a worm gear connection. These simple locking mechanisms, relying on a precise fit between the rotating shaft and support feet or a worm gear connection, are prone to loosening and gaps after a period of vibration and impact in complex mechanical environments. Furthermore, wear caused by rotational motion between contact parts widens these gaps. This gap can lead to stress concentration and uneven force distribution at the connection points, ultimately resulting in cracks, reduced durability, and amplified vibrations in the rotating shaft and support feet or worm gear connection. These adverse effects hinder scientific experiments and testing, leading to unreliable data. The primary reason for this is the lack of a scientifically sound locking mechanism. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide a load pitch adjustment and locking device to solve the problems in the prior art where there is a gap between the load body and the support in complex environments, which easily leads to uneven stress distribution, cracks easily appearing at the load body fixing point, low durability, and amplified vibration in local areas.

[0005] A load pitch adjustment and locking device is used to fasten a load body under complex mechanical conditions. It includes an adjustment part and a support part. The upper and lower ends of the load body are respectively connected to the adjustment part and the support part. The support part is an arc-shaped plate assembly. An angle scale is provided on the arc-shaped plate. The adjustment part is provided with an adjustment rotation unit. The arc center of the support part is located at the rotation center of the adjustment rotation unit.

[0006] Furthermore, the adjustment unit includes an adjustment support assembly consisting of an adjustment support foot and an angle adjustment foot.

[0007] Furthermore, the adjustable support foot includes an adjustable support base, an adjustable support ear plate, and an adjustable support ear hole.

[0008] Furthermore, the angle adjustment foot includes an angle adjustment base, an angle adjustment ear plate, and an angle adjustment ear hole.

[0009] Furthermore, the adjusting rotation unit includes an adjusting rotation shaft and an adjusting rotation lock nut; the two ends of the adjusting rotation shaft are respectively connected to the adjusting rotation lock nut.

[0010] Furthermore, the support portion includes a support slide plate, a support base plate, and a support fastening unit; both the support slide plate and the support base plate are provided with grooves of the same structure; the support fastening unit is used to connect and lock the support slide plate and the support base plate.

[0011] Furthermore, both the supporting slide plate and the supporting base plate include a supporting base plate seat and a supporting arc plate body; the sliding groove is disposed on the supporting arc plate body; the supporting base plate seat of the supporting base plate is connected to the external foundation, and the supporting base plate seat of the supporting slide plate is connected to the middle of the upper end face of the load body; the supporting slide plate and the supporting arc plate body of the supporting base plate are disposed opposite to each other; the arc center of the supporting arc plate body is located at the center of the adjusting rotary shaft.

[0012] Furthermore, the support fastening unit includes a locking bolt, a locking nut, and a sliding sleeve; the sliding sleeve is positioned on the end face of one of the support arc plates and passes through the sliding grooves of the support plate body on the support slide plate and the support base plate in sequence; the locking bolt passes through the positioning surface of the sliding sleeve and locks the two support arc plates together with the locking nut on the opposite side.

[0013] Furthermore, the curved edge of the groove of the supporting base plate is provided with angle scale lines.

[0014] A method for locking a load pitch adjustment mechanism, using the aforementioned load pitch adjustment locking device, comprises the following steps:

[0015] S1. Install and debug the load pitch adjustment and locking device;

[0016] S2. Loosen the locking nut, adjust the angle of the load body to the designed angle scale line, and then tighten the locking nut.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] 1. The load pitch adjustment and locking device of the present invention has a simple structure, fewer installation links, and is less likely to cause installation gaps, effectively reducing rotational errors and installation stress changes caused by installation gaps during load rotation.

[0019] 2. The load pitch adjustment and locking device of the present invention has a symmetrical structure of the adjustment part and the support part is located in the middle of the adjustment part. The overall structure can ensure that the load body is subjected to uniform force and ensure that the fixed point of the rotating load is not prone to cracking.

[0020] 3. The locking method of the load pitch adjustment mechanism of the present invention has simple steps and is easy to implement.

[0021] Other features and advantages of the invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained from what is particularly pointed out in the description and the drawings. Attached Figure Description

[0022] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0023] Figure 1 This is a schematic diagram of the overall structure of the load pitch adjustment and locking device of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of the load pitch adjustment and locking device of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the overall structure of the adjustment rotation unit of the present invention;

[0026] Figure 4 This is a schematic diagram of the adjustable rotary shaft of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the support part of the present invention;

[0028] Figure 6 for Figure 5 Schematic diagram of partial sectioning along the AA direction;

[0029] Figure 7 This is a schematic diagram of the overall structure of the load pitch adjustment and locking device of the present invention. Figure 3 .

[0030] Figure label:

[0031] 1. Adjustment section; 11. Adjustment support foot; 12. Angle adjustment foot; 13. Adjustment rotation unit; 131. Adjustment rotation shaft; 1311. First adjustment rotation shaft; 1312. Second adjustment rotation shaft; 132. Adjustment rotation lock nut; 133. Springback post; 134. Springback body; 135. Low frequency vibration filter; 2. Support section; 21. Support slide plate; 211. Side edge of support slide plate; 212. Moving auxiliary body; 22. Support base plate; 221. Angle scale; 222. Side edge of support base plate; 23. Support fastening unit; 231. Locking bolt; 232. Locking nut; 233. Sliding sleeve; 100. Load body. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-7 The present invention will be described in detail below. The accompanying drawings, which form part of the present invention and, together with the embodiments thereof, serve to illustrate the principles of the invention, but are not intended to limit the scope of the invention.

[0033] like Figure 1 As shown, a load pitch adjustment and locking device is installed on an external foundation for securing a load body 100 in complex mechanical environments. It includes an adjustment part 1 and a support part 2. The upper and lower ends of the load body 100 are respectively connected to the adjustment part 1 and the support part 2. The support part 2 is an arc-shaped plate assembly. An angle scale is provided on the arc-shaped plate. The adjustment part 1 is provided with an adjustment rotation unit 13. The arc center of the support part 2 is located at the rotation center of the adjustment rotation unit 13.

[0034] Specifically, the other ends of the adjustment part 1 and the support part 2 are fixedly installed on the external base. In this specific embodiment, it is preferred that the first end of the adjustment part 1 and the first end of the support part 2 are fixedly installed on the same external base, the second end of the adjustment part 1 is connected to the lower end face of the load body 100, and the second end of the support part 2 is connected to the upper end face of the load body 100.

[0035] Specifically, the adjustment unit 1 includes an adjustment support foot 11, an angle adjustment foot 12, and an adjustment rotation unit 13; wherein, the adjustment support foot 11 and the angle adjustment foot 12 are configured as a set of adjustment support groups for joint use, and the adjustment unit 1 includes two such adjustment support groups. The two sets of adjustment support groups are located at both ends of the lower end face of the load body 100; specifically, they are located at a position of 1 / 5 of the length on each side of the lower end face of the load body 100, such as... Figure 1 , Figure 2 and Figure 3 As shown. The two ends of the adjustable rotary unit 13 are each hinged with an adjustable support group.

[0036] Specifically, the adjustable support foot 11 includes an adjustable support base, an adjustable support ear plate, and an adjustable support hinge portion, with an adjustable support ear hole provided at the adjustable support hinge portion. The adjustable support base is provided with mounting holes for mounting the adjustable part 1 on the external foundation; in this preferred embodiment, the adjustable support base is symmetrically provided with four mounting through holes for fixing the adjustable support foot 11 on the external foundation using fasteners.

[0037] More specifically, an adjustment support ear plate is provided on the upper end surface of the adjustment support base; preferably, in this specific embodiment, the adjustment support ear plate is integrally formed in the middle of the upper end surface of the adjustment support base; more preferably, in this specific embodiment, the lower part of the adjustment support ear plate is wider to ensure sufficient strength to support the load body 100 with a large weight; the upper part of the adjustment support ear plate is narrower than its lower part, and an adjustment support ear hole is provided at the narrower part, which can minimize the mating area with the adjustment rotation unit 13 while ensuring sufficient support strength, thereby reducing sliding friction and ensuring that the load body 100 rotates freely.

[0038] Specifically, the angle adjustment foot 12 includes an angle adjustment base and an angle adjustment ear plate; the angle adjustment ear plate is provided with an angle adjustment hole.

[0039] More specifically, the angle adjustment base is provided with mounting holes for mounting the angle adjustment foot 12 on the lower end face of the load body 100; optionally, the angle adjustment base is symmetrically provided with four mounting through holes for fixing the angle adjustment foot 12 on the lower end face of the load body 100 with fasteners. In this specific embodiment, preferably, the angle adjustment base is provided with three mounting holes; more preferably, the three mounting holes are arranged in an isosceles triangle, and the structure of the angle adjustment base is adjusted accordingly; even more preferably, one side of the isosceles triangle is parallel to the long axis of the overall structure of the load body 100 and lies in the same vertical plane as the rotation axis. The purpose of this design is to increase the contact surface between the angle adjustment base and the external foundation, thereby increasing the stability of the overall structure.

[0040] More specifically, an angle adjusting ear plate is provided on the upper end face of the angle adjusting base; in a preferred embodiment, the angle adjusting ear plate is integrally formed in the middle of the upper end face of the adjusting support base; an adjusting support ear hole is provided on the angle adjusting ear plate. In a preferred embodiment, the narrower upper width of the angle adjusting ear plate is consistent with that of the adjusting support ear plate; the size and precision of the adjusting support ear hole are the same as those of the adjusting support ear hole, specifically in terms of cylindricity and roughness. The surface roughness of the mating surface between the adjusting support hinge and the angle adjusting ear plate is consistent, which can be selected as 1.6, preferably 3.2, thus reducing the processing requirements while ensuring the fitting accuracy. The consistency of the related structures of the angle adjusting ear plate and the adjusting support ear plate can ensure that the load body 100 is subjected to balanced stress during installation, locking and rotation, and is not easily damaged by stress.

[0041] Specifically, the adjustment rotation unit 13 includes an adjustment rotation shaft 131 and an adjustment rotation lock nut 132. The adjustment rotation shaft 131 is a rod, including a central optical shaft and screws at both ends. Preferably, in this specific embodiment, the local machining roughness of the central optical shaft of the adjustment rotation shaft 131 near the screws is improved, which can be selected as 1.6, preferably 3.2, to match the adjustment support ear holes and the adjustment support ear holes through which it passes. The dimensions are also made to match the adjustment support ear holes and the adjustment support ear holes. The optical shaft passes through two sets of adjustment support ear holes and angle adjustment ear holes, with a transition fit of H7 / m6. The adjustment rotation lock nut 132 connects to the screws of the adjustment rotation shaft 131 from both ends, and after the two adjustment rotation lock nuts 132 are locked, the distance between their opposite surfaces is consistent with the nominal value of the distance between the outer surfaces of the two sets of adjustment support groups, and there is a margin for further tightening. This design ensures that even when the rotary lock nut 132 is not fully locked, the rotary shaft 131 can rotate freely after being hinged to the adjusting support foot 11 and the angle adjusting foot 12; when the rotary lock nut 132 is locked, the rotary shaft 131 is fixed to the hinged adjusting support foot 11 and the angle adjusting foot 12, and the load pitch adjustment locking device is in a stable state. Figure 3 The rotating axis OO shown is the axis of the adjusting rotary axis 131.

[0042] Further preferably, the non-threaded end of the adjusting rotary lock nut 132 is provided with a tool hole, which can be used to lock the adjusting rotary lock nut 132 to the outer side of the adjusting support assembly, thus saving manpower.

[0043] Further preferably, the adjusting support hinge portion is provided with an adjusting support positioning screw hole, which is located radially to and communicates with the adjusting support ear hole, so that after the angle adjustment is completed, the position of the adjusting rotation shaft 131 in the adjusting support foot 11 can be locked by a set screw; the angle adjusting ear plate is provided with an angle adjusting positioning screw hole, which is located radially to and communicates with the angle adjusting ear hole, so that after the angle adjustment is completed, the position of the adjusting rotation shaft 131 in the angle adjusting foot 12 can be locked by a set screw. The adjusting support positioning screw hole and the angle adjusting positioning screw hole are used to secure the adjusting rotation shaft 131 in the adjusting support ear hole and the angle adjusting ear hole by a positioning fastening screw after the position of the load body 100 is adjusted, so as to ensure that the position of the adjusting support foot 11 and the angle adjusting foot 12 is relatively fixed with respect to the adjusting rotation unit 13, and further ensure that the position of the load body 100 is stable in the set angle direction. Preferably, the positioning fastening screw in this specific embodiment is a flat-end fastening screw.

[0044] Further preferably, a low-frequency vibration filter 135 is installed between the adjusting rotary lock nut 132 and the outer surface of the adjusting support assembly. This low-frequency vibration filter 135 not only serves to increase the preload of the elastic washer, but also avoids resonance at low frequencies, effectively reducing the impact of external vibrations and shocks on the load body 100.

[0045] Specifically, such as Figure 5 As shown, the support part 2 includes a support slide plate 21, a support base plate 22, and a support fastening unit 23. The lower end of the support base plate 22 is fixedly connected to the external foundation, and the upper end of the support base plate 22 is connected to the support slide plate 21 through the support fastening unit 23. More specifically, the upper end of the support slide plate 21 is fixedly connected to the middle of the upper end of the load body 100, and the lower end of the support slide plate 21 is connected to the support base plate 22 through the support fastening unit 23. The support fastening unit 23 is used to connect and lock the support slide plate 21 and the support base plate 22.

[0046] More specifically, both the supporting slide plate 21 and the supporting base plate 22 include a supporting base plate seat and a supporting arc plate body; the supporting base plate 22 is connected to the external foundation through its own supporting base plate seat, and the supporting slide plate 21 is connected to the middle of the upper surface of the load body 100 through its own supporting base plate seat; during installation, the supporting slide plate 21 and the supporting base plate 22 are installed in a staggered manner, so that the supporting arc plate bodies of the supporting slide plate 21 and the supporting base plate 22 can be set relative to each other. More specifically, each supporting arc plate body has a supporting arc plate body connecting hole at its end away from its supporting base plate seat, and a groove is provided in the middle of the supporting arc plate body between the supporting arc plate body connecting hole and the supporting base plate seat; preferably, the groove is located at the midpoint of the arc in the middle of the supporting arc plate body, and the arc is parallel to the arc line of the supporting arc plate body, such as... Figure 1 and Figure 2 The groove serves as a guide, guiding the support slide plate 21 to slide along the arc line in the center of the support arc plate body on the support base plate 22 via the support fastening unit 23 defined in the groove.

[0047] Optionally, one of the supporting arc plate bodies of the supporting slide plate 21 and the supporting base plate 22 is provided with a groove, and the other is provided with evenly distributed fastening through holes; preferably, the supporting arc plate body of the supporting slide plate 21 is provided with fastening through holes; the supporting arc plate body of the supporting base plate 22 is provided with a groove, such as... Figure 7 As shown. This design increases the strength of the support 2 while ensuring that the load body 100 can continuously change angles and be read, which is beneficial to the overall stability of the load pitch adjustment and locking device.

[0048] Specifically, during installation, ensure that the center of the arc of the supporting arc plate is located at the center of the adjusting rotation shaft 131, so that the load body 100 is always located radially on the arc of the supporting slide plate and can rotate around the rotation axis OO. This technical requirement can be ensured by adjusting the height of the center line of the rotation shaft 131 from the external foundation and the arc radius of the supporting arc plate, thereby determining the installation position of the supporting base plate seat of the supporting base plate 22.

[0049] Optionally, the support slide body on the support base plate 22 is slotted, and the support slide body on the support slide plate 21 is limited to sliding within the slotted support slide body on the support base plate 22. Optionally, the support base plate 22 and the support slide plate 21 have the same structural dimensions and both have a support edge on one side. The support slide bodies of the support base plate 22 and the support slide plate 21 are installed opposite each other and can slide smoothly. In this specific embodiment, preferably, one side of the support slide body of the support slide plate 21 is provided with a support slide side ridge 211, and one side of the support slide body of the support base plate 22 is provided with a support base plate side ridge 222. When the support base plate 22 and the support slide plate 21 are installed opposite each other, such as Figure 6 As shown, the side edge 211 of the supporting slide plate and the side edge 222 of the supporting base plate are arranged opposite to each other, and together they play the role of limiting the sliding of the supporting slide plate 21 on the supporting base plate 22.

[0050] Optionally, one of the supporting slide plates has an angle scale 221 on the outer edge of the slide groove; the other supporting slide plate has a radial straight edge at its end, which serves as a scale marking line; the two work together to read the value on the angle scale 221; preferably, the angle scale 221 is provided on the surface of the supporting base plate 22 that is mounted opposite to the supporting slide plate, specifically by etching, such as... Figure 6 As shown; the ends of the support slide body on the support slide 21 are all radial straight lines.

[0051] Preferably, a movable auxiliary body 212 is provided on the side edge 211 of the supporting slide plate 21 to control the rotation process of the load body 100 with the aid of a tool, ensuring that the rotation process is smooth, safe and not out of control. The movable auxiliary body 212 is integrally formed on the side edge 211 of the supporting slide plate and is provided with a tool mounting unit, specifically a through hole.

[0052] Optionally, the support fastening unit 23 includes a locking bolt 231 and a locking nut 232. The locking nut 232 is positioned in the connecting hole of one of the supporting arc plates and passes through the groove of one of the supporting arc plates. The locking bolt 231 passes through the groove of the supporting arc plate on the outer end face of the other supporting arc plate and connects to the locking nut 232. Preferably, the locking nut 232 has a stepped shaft structure, with the larger shaft end limited to the outer side of the supporting slide plate, and the smaller shaft end passing through the connecting hole of the supporting arc plate and extending into the groove of the other supporting arc plate. The smaller end is provided with a screw hole for connecting the locking bolt 231. More preferably, the locking bolt 231 has a wrench, specifically a box wrench. In this specific embodiment, preferably, the diameter of the smaller shaft portion of the locking nut 232 is not greater than the width of the groove. More preferably, the smaller shaft portion of the locking nut 232 forms a transition fit with the two sides of the groove.

[0053] More specifically, the support part 2 includes two sets of support and fastening units 23, which are located at the ends of the support slide plate 21 and the support base plate 22, respectively.

[0054] In this preferred embodiment, the support and fastening unit 23 includes a locking bolt 231, a locking nut 232, and a sliding sleeve 233. The sliding sleeve 233 is a stepped shaft with a central through hole, positioned on the side of the support slide plate 21, and passing through grooves on both the support slide plate 21 and the support base plate 22. The locking bolt 231 passes through the central through hole of the sliding sleeve 233 from the side of the support slide plate 21 to the side of the support base plate 22, where it connects with the nut. The support and fastening unit 23 may also include washers, elastic washers, etc., to increase the fastening area and the preload.

[0055] This invention employs a locking nut 232 to lock the adjusting rotary shaft 131 within the adjusting support assembly using a certain tightening torque. This fixes the end faces of the adjusting rotary shaft 131, the adjusting support foot 11, and the angle adjusting foot 12, increasing the friction of the contact end faces and eliminating the gaps between the adjusting rotary shaft 131, the adjusting support foot 11, and the angle adjusting foot 12. This improves the connection rigidity between the three components and can effectively avoid the adverse effects of stress concentration and vibration amplification caused by vibration and impact in complex mechanical environments at the connection points of the three components.

[0056] Mark the center position line of the adjustment shaft 131 on the outer cylindrical surface of the adjustment shaft 131 so that the support part (2) can be installed on the outer base surface according to the marking of this line. The specific position is perpendicular to the axis of the adjustment shaft 131 by the projection of the center position line of the adjustment shaft 131.

[0057] This invention can also employ an adjustable rotating shaft, such as... Figure 4As shown. The adjusting rotary shaft 131 adopts a technical solution consisting of a first adjusting rotary shaft 1311 and a second adjusting rotary shaft 1312. Specifically, the first adjusting rotary shaft 1311 is a smooth shaft structure, with a screw at one end for connecting one of the adjusting rotary lock nuts 132; the other end is provided with a shaft end blind hole, and multiple sets of through holes are arranged in pairs on the side wall of the shaft end blind hole. Preferably, the spacing between each set of through holes is equal and is a nominal value. The second adjusting rotary shaft 1312 is a stepped shaft, with a screw at the large shaft end for connecting another adjusting rotary lock nut 132, and the other end is a small shaft end, with multiple sets of radial blind holes arranged in pairs. The spacing between each set of radial blind holes is equal to the spacing between each set of through holes on the first adjusting rotary shaft 1311, and is also the same nominal value; preferably, there is one or two sets. A spring body 134 is provided in each radial blind hole, preferably a spring; a spring post 133 is installed on the upper end of the spring body 134. Before use, the rebound body 134 and the rebound pin 133 are installed in the radial blind hole of the second adjusting rotary shaft 1312, and the small shaft end of the second adjusting rotary shaft 1312 is pushed into the shaft end blind hole of the first adjusting rotary shaft 1311. Under the combined action of the rebound body 134 and the rebound pin 133, the rebound pin 133 is limited to the through hole provided on the side wall of the different shaft end blind holes, thereby changing the length of the combined adjusting rotary shaft 131, thereby adjusting the distance between the two adjusting parts 1, so that the load pitch adjustment locking device of the present invention can adapt to load bodies 100 of different sizes for testing or research work with angle adjustment.

[0058] On the outer cylindrical surface of the first adjusting rotary shaft 1311, for the positions of the through holes provided on the sidewalls of the blind holes at different shaft ends, mark the center position line of the adjusting rotary shaft 131 of the assembly, so that the positioning support (2) can be installed on the outer base surface according to the marking of this line. The specific position is perpendicular to the axis of the adjusting rotary shaft 131 by the projection of the center position line of the adjusting rotary shaft 131 of the assembly.

[0059] A method for locking a load pitch adjustment mechanism, using a load pitch adjustment locking device with grooves on the aforementioned support arc plate, wherein the locking steps are as follows:

[0060] S1. Install and debug the load pitch adjustment and locking device;

[0061] S11. Install two adjustable support feet 11 and fix them to the external foundation through the mounting holes on their own adjustable support bases;

[0062] S12. The two angle adjustment feet 12 are fixedly connected to the load body 100 through the mounting holes on their own angle adjustment bases; wherein, the distance between the inner and outer plates of the two angle adjustment lugs of the angle adjustment feet 12 is equal to the nominal value of the distance between the outer and inner plates of the two adjustment support lugs on the adjustment support feet 11 in S11; the adjustment support feet 11 and the angle adjustment feet 12 are matched together to form an adjustment support group;

[0063] S13. Pass the adjusting rotary shaft 131 through the adjusting support lugs and angle adjusting lugs of the two sets of adjusting support groups at once, screw the adjusting rotary lock nuts 132 at both ends, and install positioning screws at the adjusting support positioning screw holes on the adjusting support hinge part;

[0064] S14. Connect the support base plate 22 to the external foundation through its own support base plate seat; during installation, ensure that the arc center of the support arc plate body on the support base plate 22 is located on the axis of the adjustment rotation shaft 131, and that the support arc plate body is located at the position corresponding to the axis center of the adjustment rotation shaft 131.

[0065] S15. Connect the support slide plate 21 to the upper surface of the load body 100 via its own support base plate; during installation, ensure that the nominal distance between the side of the support arc plate with angle scale on the support slide plate 21 and the side of the support arc plate with angle scale on the support base plate 22 is "0".

[0066] S16. Connect the support slide plate 21 and the support base plate 22 using the support fastening unit 23; specifically, position the locking bolts 231 of a set of support fastening units 23 in the connecting holes of the support arc plate body on the support slide plate 21, and pass through the sliding groove of the support arc plate on the support base plate 22; connect the locking nut 232 from the outer end face of the support arc plate on the support base plate 22 through the sliding groove thereon to the locking bolt 231; the installation steps of the other set of support fastening units 23 are the same as above;

[0067] S2. Loosen the locking mechanism; adjust the device with the load body 100 so that the load body 100 deflects at the designed angle; tighten all fasteners to complete the angle adjustment and locking:

[0068] S21. Install all fasteners in place so that the load tilt adjustment device with load body 100 is in a locked and stable state, and record the current scale of angle scale 221.

[0069] S22. Loosen the support fastening unit 23 to an adjustable sliding state;

[0070] S23. Loosen the positioning screw and the locking bolt 231; Under the limit of the support fastening unit 23, the support slide plate 21 drives the load body 100 to rotate around the rotation axis OO until the radial straight edge of the top of the support arc plate body on the support slide plate 21, which serves as the scale mark line, is aligned with the scale value set by the angle scale 221 on the support arc plate body on the support base plate 22.

[0071] S24. Locking adjustment rotary lock nut 132, locking positioning screw, locking support fastening unit 23.

[0072] Complete the pitch angle adjustment of the load body 100 and lock the load pitch adjustment device.

[0073] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A load pitch adjustment and locking device for fastening a load body (100) under complex mechanical conditions, characterized in that, It includes an adjustment part (1) and a support part (2); the upper and lower ends of the load body (100) are respectively connected to the support part (2) and the adjustment part (1); the adjustment part (1) is provided with an adjustment rotation unit (13); the arc center of the support part (2) is located at the rotation center of the adjustment rotation unit (13); the support part (2) includes a support slide plate (21), a support base plate (22) and a support fastening unit (23), and both the support slide plate (21) and the support base plate (22) include a support... The support base plate and the support arc plate body are provided with a sliding groove, which is used to guide the support slide plate (21) to slide along the arc line in the middle of the support arc plate body on the support base plate (22) through the support fastening unit (23) limited in the sliding groove; the support fastening unit (23) includes a locking bolt (231) and a locking nut (232); the support slide plate (21) and the support base plate (22) are installed in a staggered manner, and the support arc plate bodies of the support slide plate (21) and the support base plate (22) can be arranged relative to each other; The adjusting rotary unit (13) includes an adjusting rotary shaft (131) and an adjusting rotary lock nut (132); the two ends of the adjusting rotary shaft (131) are respectively connected to the adjusting rotary lock nut (132), and the locking bolt (231) passes through the groove of a supporting arc plate and then exits from the outer end face of another supporting arc plate and is locked with the locking nut (232). The locking nut (232) is used to lock the adjusting rotary shaft (131) in the adjusting support group by tightening torque, and the adjusting rotary shaft (131) and the adjusting part (1) are fixed at the end face. The adjusting rotary shaft (131) includes a first adjusting rotary shaft (1311) and a second adjusting rotary shaft (131). 2) The first adjusting rotary shaft (1311) is provided with a shaft end blind hole; the second adjusting rotary shaft (1312) is a stepped shaft with multiple sets of radial blind holes at the small shaft end; a spring body (134) is provided in the radial blind hole, and a spring column (133) is installed on the upper end of the spring body (134). The small shaft end of the second adjusting rotary shaft (1312) is pushed into the shaft end blind hole of the first adjusting rotary shaft (1311). Under the combined action of the spring body (134) and the spring column (133), the spring column (133) is limited in the through hole provided on the side wall of the different shaft end blind holes, and the length of the rotary shaft (131) is adjusted, thereby realizing the adjustment of the distance between the two adjusting parts (1).

2. The load pitch adjustment and locking device as described in claim 1, characterized in that: The adjustment unit (1) includes an adjustment support group consisting of an adjustment support foot (11) and an angle adjustment foot (12).

3. The load pitch adjustment and locking device as described in claim 2, characterized in that: The adjustable support foot (11) includes an adjustable support base, an adjustable support ear plate, and an adjustable support ear hole.

4. The load pitch adjustment and locking device as described in claim 3, characterized in that: The angle adjustment foot (12) includes an angle adjustment base, an angle adjustment ear plate, and an angle adjustment ear hole.

5. The load pitch adjustment and locking device as described in claim 1, characterized in that: The support and fastening unit (23) also includes a sliding sleeve (233).

6. The load pitch adjustment and locking device as described in claim 1, characterized in that: The grooved arc edge of the support base plate (22) is provided with angle scale lines.

7. A method for locking a load pitch adjustment mechanism, using the load pitch adjustment locking device as described in any one of claims 1-6, comprising the following steps: S1. Install and debug the load pitch adjustment and locking device; S2. Loosen the locking nut, adjust the angle of the load body (100) to the designed angle scale line, and then tighten the locking nut.

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