A rotary encoder mounting mechanism and a lower rotary mast section structure

Abstract

The utility model provides a kind of rotary encoder mounting mechanism and lower rotary mast joint structure, for installing rotary encoder, rotary encoder mounting mechanism includes connecting shaft joint support, connecting shaft joint support includes hollow tube, connecting shaft joint and mounting plate, the bottom end of connecting shaft joint is connected with the top end of hollow tube, hollow tube is vertically arranged with mounting plate and the bottom end of hollow tube is connected with the middle part of mounting plate, the top end of hollow tube is connected with rotary encoder by connecting shaft joint, the wire harness of rotary encoder is arranged in hollow tube and is extended to mounting plate downward arrangement.This case is realized in lower rotary mast joint cavity airtight, installs rotary encoder more difficult condition by connecting shaft joint support, installs rotary encoder in mast inside, also can reduce the risk of wire harness being damaged by foreign matter when wire harness is rotated with mast, simultaneously, improve the convenience and intelligent degree of pile frame control.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction equipment, and in particular to a rotary encoder installation mechanism and a lower rotary mast structure having the above-mentioned rotary encoder installation mechanism. Background Technology

[0002] In existing technology, multi-functional piling frames use a rotary encoder to obtain angles for mast rotation control. The slewing bearing has a fixed end and a movable end on each side. The movable end rotary table is equipped with a bevel gear, and the fixed end bevel gear welded assembly is equipped with a bevel bevel gear. Because the lower slewing mast section cavity is sealed, the encoder cannot be installed inside the mast; it must be mounted on the rotary table. The encoder wiring harness is led out from the movable end and passes through a through-hole in the outer wall of the mast, thus enabling the detection of the mast's rotation angle relative to the lower mast section.

[0003] However, existing technologies have significant drawbacks: First, encoder installation is limited by the confined cavity, resulting in narrow installation space. Rotary encoders cannot be installed inside the mast, making it impossible to read the mast deflection angle on the control screen, thus affecting ease of operation and the level of intelligence. Second, installing the rotary encoder wiring harness is inconvenient. The harness needs to be pre-threaded into the mast before installing the encoder; alternatively, large process holes need to be designed on the mast for easy visual inspection and manual pulling of the wires. Masts come in various lengths, requiring different masts to be selected based on mast height. Each mast replacement necessitates disassembling and replacing the wiring harness, increasing operational difficulty. Furthermore, a considerable distance needs to be left on the outer wall of the mast, increasing the risk of damage from foreign objects as the mast rotates. Therefore, this invention aims to provide a rotary encoder installation mechanism that solves the above problems. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a rotary encoder mounting mechanism and a lower rotary mast structure, which eliminates the need for repeated disassembly and assembly of the wiring harness and enables the installation of the rotary encoder in a narrow and enclosed space.

[0005] One embodiment of this utility model provides a rotary encoder mounting mechanism for mounting a rotary encoder. It includes a coupling bracket, with the rotary encoder connected to the top of the coupling bracket. The coupling bracket includes a hollow tube, a coupling, and a mounting plate. The bottom end of the coupling is connected to the top end of the hollow tube. The hollow tube is perpendicular to the mounting plate, and the bottom end of the hollow tube is connected to the middle of the mounting plate. The top end of the hollow tube is connected to the rotary encoder via the coupling. The wiring harness of the rotary encoder is arranged inside the hollow tube and extends downwards toward the mounting plate.

[0006] Furthermore, a first wire hole and a second wire hole are respectively opened on the top and bottom circumferential surfaces of the hollow tube. The wiring harness of the rotary encoder enters the interior of the hollow tube through the first wire hole and exits to the outside of the hollow tube through the second wire hole.

[0007] Furthermore, the two ends of the mounting plate are bent toward the side where the hollow tube is located, so that the mounting plate is formed into a bent plate. A third wire hole is provided through the plate surface at one of the bent positions of the mounting plate. The wiring harness of the rotary encoder is laid along the mounting plate and passes through the third wire hole. Furthermore, the coupling bracket also includes multiple conduits located on the same side of the hollow tube. The two ends of each conduit are bent and fixed to the mounting plate. The wiring harness of the rotary encoder is laid along the multiple conduits and passed through each conduit.

[0008] Furthermore, the rotary encoder mounting mechanism also includes an encoder bracket, on which the rotary encoder is mounted. The encoder bracket is located at the top of the coupling bracket, and the hollow tube extends toward the encoder bracket and passes through the encoder bracket to connect with the rotary encoder.

[0009] Another embodiment of this utility model provides a lower slewing mast structure, including the aforementioned slewing encoder mounting mechanism and a cylindrical welded section. The encoder bracket is disposed outside the cylindrical welded section and located at the top of the cylindrical welded section. The mounting plate is disposed inside the cylindrical welded section, and both ends of the mounting plate are assembled with the cylindrical welded section. The bottom end of the hollow tube is located inside the cylindrical welded section, and the top end of the hollow tube extends upward to the outside of the cylindrical welded section.

[0010] Furthermore, the cylinder welding includes a cylinder body, and the inner wall of the cylinder body is provided with a wire outlet hole. The wiring harness of the rotary encoder is laid along the mounting plate and extends to the outside through the wire outlet hole.

[0011] Furthermore, the lower slewing mast structure also includes a slewing table assembly mounted on the cylinder assembly. The slewing table assembly includes a slewing plate, which is mounted on the top of the cylinder assembly. An encoder bracket is located above the slewing plate and fixed to the slewing plate.

[0012] Furthermore, the rotary table welding also includes a bevel gear, which is fixedly installed in the middle of the rotary plate and extends into the interior of the cylindrical welding. A through hole is opened in the middle of the bevel gear, and a hollow tube passes through the through hole upward and extends out above the rotary plate.

[0013] Furthermore, the lower slewing mast structure also includes a bevel gear welded within the cylinder welded assembly. The bevel gear welded assembly includes a bevel bevel gear and two cylinder seat lugs that are connected to the bevel gear drive. The bevel bevel gear is drive-connected to the two cylinder seat lugs and meshes with the bevel gear.

[0014] This utility model provides a rotary encoder mounting mechanism and a lower rotary mast structure. The rotary encoder mounting mechanism includes a coupling bracket and an encoder bracket. The lower rotary mast structure includes a rotary encoder mounting mechanism, a rotary table welded together, a cylindrical body welded together, a bevel gear welded together, a rotary cylinder, and a rotary bearing. The rotary encoder is assembled with the cylindrical body welded together via the coupling bracket. A wire outlet hole is provided on the outer wall of the cylindrical body welded together. Through the coupling bracket, the rotary encoder can achieve interference-free wire threading in confined spaces. A hollow tube allows the rotary encoder's wiring harness to be led from the rotary encoder to the upper part of the rotary table welded together, allowing the wiring harness to pass through the hollow tube cavity and exit through the wire outlet hole on the outer wall of the cylindrical body welded together. The wiring harness is well protected, completely covered within the shaft tube and the cylindrical wall. Simultaneously, installing the coupling bracket in extremely confined spaces avoids the trajectory of the vertical swing of the cylinder seat lugs and the meshing trajectory of the bevel gears, preventing the wiring harness from becoming tangled or knotted. Therefore, this solution not only enables the installation of a rotary encoder inside the mast, despite the difficulty of installing a rotary encoder in a sealed lower slewing mast section, but also reduces the risk of the wiring harness being damaged by foreign objects when it rotates with the mast. Furthermore, the wiring harness can be replaced without disconnecting it, improving the convenience and intelligence of operating the multi-functional piling system. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A cross-sectional view of the lower slewing mast structure provided for an embodiment of this utility model; Figure 2 for Figure 1 A partially enlarged view of the lower slewing mast structure is provided. Figure 3 for Figure 1 A schematic diagram of the encoder bracket for the lower slewing mast structure is provided. Figure 4 a is Figure 3 Top view of the encoder mount provided with the encoder bracket; Figure 4 b is Figure 1 A schematic diagram of the provided rotary encoder; Figure 5 for Figure 1 A schematic diagram of the coupling bracket for the provided lower slewing mast structure; Figure 6 a is Figure 5A top view of the coupling of the provided coupling bracket; Figure 6 b is Figure 5 Side view of the coupling of the provided coupling bracket; Figure 7 for Figure 1 A schematic diagram of the cylinder welding of the lower slewing mast structure is provided; Figure 8 for Figure 1 A schematic diagram of the welding of the slewing table for the lower slewing mast structure is provided. Figure 9 for Figure 1 A schematic diagram of the bevel gear welding of the lower slewing mast structure is provided; Figure 10 for Figure 1 A second-view cross-sectional view of the provided lower slewing mast structure; Figure 11 For having Figure 1 A schematic diagram showing the connection between the lower slewing mast section and the mast.

[0017] In the diagram: Lower slewing mast structure 100; slewing encoder 1; encoder bracket 2; base 21; wiring hole 210; encoder seat 22; connecting hole 220; rubber pad 23; coupling bracket 3; hollow tube 31; first wire hole 310; second wire hole 311; mounting plate 32; third wire hole 320; coupling 33; connecting shaft 34; wiring tube 35; slewing table welding 4; slewing plate 41; bevel gear 42; through hole 420; limit plate 43; cylinder welding 5; cable outlet hole 50; cylinder 51; coupling bracket mounting hole 510; cylinder connecting plate 52; bevel gear welding 6; bevel bevel gear 61; cylinder seat ear plate 62; transmission connecting hole 620; cylinder seat shaft 621; slewing cylinder 7; piston rod 71; cylinder ear 72; slewing bearing 8; wiring harness L; mast 200. Detailed Implementation

[0018] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0019] The main purpose of this application is to provide a rotary encoder mounting mechanism and a lower rotary mast structure 100 for use in tracked pile drivers. The lower rotary mast structure 100 can be a lower rotary mast inside the mast 200 to solve the problem that existing multi-functional pile drivers cannot install the rotary encoder 1 inside the mast 200, as well as the problem that the wiring harness L of the rotary encoder 1 is led out from the outer wall of the mast 200 at the movable end.

[0020] Please refer to the following first. Figure 1 , Figure 10 as well as Figure 11 One embodiment of this application provides a rotary encoder mounting mechanism, which is installed in the lower rotary mast structure 100.

[0021] like Figures 1 to 3 as well as Figure 10 As shown, the rotary encoder mounting mechanism includes a coupling bracket 3, and the rotary encoder 1 is connected to the coupling bracket 3. Furthermore, the rotary encoder 1 used in this application is a common rotary encoder, the specific structure of which can be found in existing technology and will not be described in detail here.

[0022] like Figure 2 and Figure 3 As shown, the coupling bracket 3 includes a hollow tube 31, a mounting plate 32, and a coupling 33; the bottom end of the coupling 33 is connected to the top end of the hollow tube 31, and the hollow tube 31 is perpendicular to the mounting plate 32, with the bottom end of the hollow tube 31 connected to the middle of the mounting plate 32. Figure 4 As shown in 4a and 4b, the coupling 33 is a hollow cylinder with an upward thread on its outer circumference. The top end of the coupling 33 is rotatably connected to the rotary encoder 1. The top end of the hollow tube 31 is provided with a connecting shaft 34, which is used to connect the hollow tube 31 to the coupling 33. The top end of the hollow tube 31 is connected to the rotary encoder 1 through the coupling 33. The wiring harness L of the rotary encoder 1 is arranged inside the hollow tube 31 and extends downward toward the mounting plate 32.

[0023] like Figure 3 and Figure 10 As shown, the hollow tube 31 has a first wire hole 310 and a second wire hole 311 circumferentially formed at both ends. The first wire hole 310 is located at the end near the rotary encoder 1, and the second wire hole 311 is located at the end near the mounting plate 32. The wiring harness L of the rotary encoder 1 enters the hollow tube 31 through the first wire hole 310 and exits to the outside of the hollow tube 31 through the second wire hole 311. In a further embodiment, the hollow tube 31 can also be made into an assembly structure with a threaded bottom. A corresponding threaded seat is provided on the mounting plate 32, and the hollow tube 31 is screwed into the threaded seat of the mounting plate 32. In addition, the hollow tube 31 is not limited to a round tube; it can be a square tube or other irregularly shaped tube.

[0024] The two ends of the mounting plate 32 are assembled and connected to the cylindrical weld 5 of the lower slewing mast structure 100. To avoid other components inside the cylinder, the two ends of the mounting plate 32 are bent multiple times towards the side where the hollow tube 31 is located, so that the mounting plate 32 is formed into a bent plate. A third wire hole 320 is provided through the plate surface at one of the bent positions of the mounting plate 32. The wire harness L of the rotary encoder 1 passes through the second wire hole 311 and then runs along the mounting plate 32 and passes through the third wire hole 320. The second wire hole 311 and the third wire hole 320 are configured to face the same side. The coupling bracket 3 also includes multiple conduits 35 located on the same side of the hollow tube 31. Both ends of each conduit 35 are bent and fixed to the mounting plate 32. All conduits 35 are positioned on the side of the hollow tube 31 facing the third wire hole 320. Therefore, the wiring harness L of the rotary encoder 1 exits from the bottom end of the hollow tube 31 and is then laid along and threaded through each conduit 35. In a further embodiment, the bending angle of the mounting plate 32 of the coupling bracket 3 is not limited to 90°; it can be 45°, 60°, or other angles. The conduit 35 can also be a clamp for fixing the wiring harness L.

[0025] like Figure 5 , Figure 6 a, Figure 10 as well as Figure 11 As shown, the rotary encoder mounting mechanism also includes an encoder bracket 2, on which the rotary encoder 1 is mounted. The encoder bracket 2 is located at the top of the coupling bracket 3, and the hollow tube 31 extends toward the encoder bracket 2 and passes through the encoder bracket 2 to connect with the rotary encoder 1.

[0026] The encoder bracket 2 includes a base 21 and an encoder housing 22 mounted on the base 21. The bottom of the rotary encoder 1 is fixed in the encoder housing 22 and passes through the encoder housing 22 to connect with the coupling 33. The encoder housing 22 has a rubber pad 23 on the side facing the rotary encoder 1, which serves to buffer and dampen vibrations. The encoder housing 22 has a connecting hole 220 in the middle, such as... Figure 6As shown in Figure b, the rotary encoder 1 includes a rotary encoder shaft 11, which is connected to the coupling 33 of the coupling bracket 3 via the connecting hole 220 of the encoder base 22. In addition to the connecting hole 220, the encoder base 22 has four small holes evenly distributed around the circumference of the connecting hole 220. The rotary encoder 1 is connected to the encoder base 22 via these four small holes. The base 21 is indirectly mounted on the top of the cylindrical weld 5 of the lower rotary mast structure 100 to house the rotary encoder 1 within the lower rotary mast of the mast 200. The base 21 is square with openings on both sides, and its top also has a wire hole 210, allowing the wiring harness L of the rotary encoder 1 to enter the base 21 through the wire hole 210. The encoder bracket 2 is non-enclosed, facilitating the installation of the rotary encoder 1, rubber pad 23, and coupling 33. To facilitate observation and installation of the rotary encoder 1, the hollow tube 31 of the coupling bracket 3 is relatively long. After the wiring harness L is installed, the encoder bracket 2 is used to seal it, which provides good protection for the wiring harness L.

[0027] like Figure 1 , Figure 7 and Figure 10 As shown, another embodiment of this utility model provides a lower slewing mast structure, including the aforementioned slewing encoder mounting mechanism, cylinder welded joint 5, slewing table welded joint 4, bevel gear welded joint 6, slewing cylinder 7, and slewing bearing 8; wherein, the encoder bracket 2 is disposed outside the cylinder welded joint 5 and located at the top of the cylinder welded joint 5, the mounting plate 32 is disposed inside the cylinder welded joint 5 and both ends of the mounting plate 32 are assembled to the cylinder welded joint 5, the bottom end of the hollow tube 31 is located inside the cylinder welded joint 5, and the top end of the hollow tube 31 extends upward to the outside of the cylinder welded joint 5. In this embodiment, the two sides of the slewing bearing 8 are defined as the fixed end and the movable end, the side where the slewing table welded joint 4 is located is the movable end, and the side where the cylinder welded joint 5 is located is the fixed end.

[0028] The cylindrical welding 5 includes a cylindrical body 51. The cylindrical body 51 has a wire outlet hole 50 on the inner side wall near the encoder bracket 2. The wiring harness L of the rotary encoder 1 is laid along the mounting plate 32 and extends to the outside through the wire outlet hole 50. The wire outlet hole 50 is located on the same side as the second wire hole 311 and the third wire hole 320. Therefore, the wiring harness L of the rotary encoder 1 passes through the wire hole 210 of the encoder bracket 2, the hollow tube 31, the wire tube 35 and the third wire hole 320 of the mounting plate 32 in sequence, and exits through the wire outlet hole 50.

[0029] The cylinder welding 5 also includes a cylinder connecting plate 52, which is fixed to the top of the cylinder 51. The outlet hole 50 of the cylinder 51 is located circumferentially at the end of the cylinder 51 near the cylinder connecting plate 52. A coupling bracket mounting hole 510 is provided between the outlet hole 50 and the cylinder connecting plate 52. The mounting plate 32 of the coupling bracket 3 is detachably connected to the cylinder 51 through the coupling bracket mounting hole 510. Other specific structures of the cylinder welding 5 are consistent with existing technologies and can be referred to accordingly; they will not be elaborated here.

[0030] In the lower rotary mast structure 100 provided by this utility model, the coupling bracket 3 is assembled with the cylinder 51. If the coupling bracket 3 and the cylinder 51 were welded together, it would seriously affect the assembly of other components. Therefore, in this case, the coupling bracket 3 is set in an assembled form, that is, the mounting plate 32 is detachably connected to the cylinder 51, which allows the coupling bracket 3 to be installed in an extremely narrow space. The coupling bracket 3 can avoid the movement trajectory of other components and achieve installation in a small space. At the same time, the conduit 35 on the coupling bracket 3 fixes the lower wiring harness L of the rotary encoder 1, preventing the wiring harness L from being sheared and worn by the rotating parts; and the end wiring harness L of the upper rotary encoder 1 has rotational slack, so the wiring harness L will not be tangled or knotted when the encoder bracket 2 rotates.

[0031] like Figure 1 , Figure 8 and Figure 11 As shown, the lower slewing mast structure 100 also includes a slewing platform welded 4 mounted on the cylindrical welded 5. The slewing platform welded 4 includes a slewing plate 41. The slewing plate 41 is mounted on the top of the cylindrical welded 5, and the encoder bracket 2 is located above and fixed on the slewing plate 41. The encoder bracket 2 is connected to the cylindrical welded 5 through the slewing platform welded 4 and the slewing support 8. When the slewing plate 41 rotates, the encoder bracket 2 and the slewing encoder 1 rotate accordingly, thereby obtaining the slewing angle to achieve slewing control of the mast 200.

[0032] The rotary table welding 4 also includes a bevel gear 42 and a limiting plate 43 for limiting the rotation plate 41. The bevel gear 42 is located in the middle of the rotation plate 41 and extends into the interior of the cylindrical welding 5. The limiting plate 43 is located on the edge of the rotation plate 41, and the bevel gear 42 and the limiting plate 43 are on the side of the rotation plate 41 facing away from the encoder bracket 2. The bevel gear 42 has teeth in the circumferential direction for meshing with the bevel gear welding 6 to drive the rotation plate 41 to rotate. The mast 200 is connected to the side of the rotation plate 41 facing the rotary encoder 1, thereby realizing the rotation of the mast 200. A through hole 420 is opened in the middle of the bevel gear 42. The hollow tube 31 passes through the through hole 420 upward and extends out above the rotation plate 41 to connect the rotary encoder 1 to the mounting plate 32. Without a hole in the bevel gear 42, the rotary encoder 1 cannot be installed. Therefore, a hole needs to be drilled along the axial direction of the bevel gear 42 to install the rotary encoder 1. The rotary encoder 1 is connected to the cylinder weld 5 via the coupling bracket 3. This installation structure not only allows the rotary encoder 1 to be installed within a limited enclosed space, but also ensures that the wiring harness L of the rotary encoder 1 exits from the fixed end of the cylinder weld 5, ensuring safety and reliability. The other specific structures of the rotary table weld 4 are consistent with existing technology and can be referred to therein; they will not be elaborated here.

[0033] Combination Figure 1 , Figure 3 and Figure 10 The hollow tube 31 of the coupling bracket 3 passes through the through hole 420 of the bevel gear 42, connecting the rotary encoder 1 to the mounting plate 32 and the cylinder weld 5. To facilitate observation and installation of the rotary encoder 1, the hollow tube 31 needs to extend a considerable distance beyond the upper surface of the rotary plate 41. After the wiring harness L of the rotary encoder 1 is installed, the encoder bracket 2 is sealed, which not only provides excellent protection for the wiring harness L but also protects the portion of the hollow tube 31 extending beyond the rotary plate 41.

[0034] like Figure 1 , Figure 10 and Figure 11 As shown, the lower slewing mast structure 100 also includes a slewing bearing 8, which is an annular plate with an inner diameter consistent with that of the cylinder 51. The slewing bearing 8 is positioned between the cylinder connecting plate 52 of the cylinder welded 5 and the rotating plate 41 of the rotary table welded 4, supporting the rotary table welded 4 to increase the distance between the rotating plate 41 and the cylinder 51, facilitating the installation of other components within the cylinder 51 and the rotation of the rotary table welded 4. When the rotary table welded 4 rotates, the rotary encoder 1 and the mast 200 can rotate relative to the slewing bearing 8. Other specific details of the slewing bearing 8 are consistent with existing technology and can be referred to therein; they will not be repeated here.

[0035] like Figure 1 , Figure 9 as well as Figure 11As shown, the lower slewing mast structure 100 also includes a bevel gear welded joint 6 installed inside the cylindrical welded joint 5 and connected to the bevel gear 42. The bevel gear welded joint 6 includes a bevel bevel gear 61 and two cylinder seat lugs 62 connected to the bevel gear 42. The bevel bevel gear 61 is fan-shaped and has teeth on the side facing the cylinder seat lugs 62, which can mesh with the bevel gear 42. When the bevel bevel gear 61 rotates, it drives the bevel gear 42 to rotate, thereby realizing the rotation of the slewing plate 41. The two cylinder seat lugs 62 have a cylinder seat shaft 621 at their center, and the bevel bevel gear 61 is connected to the cylinder seat shaft 621, so that the bevel bevel gear 61 is connected to the two cylinder seat lugs 62. Both ends of the two cylinder seat lugs 62 are provided with transmission connection holes 620, and the slewing cylinder 7 is connected to the cylinder seat lugs 62 through the transmission connection holes 620. When the rotary cylinder 7 operates, it drives the cylinder seat lug 62 to move. The cylinder seat lug 62 is connected to the bevel gear 61. The rotation of the bevel gear 61 drives the bevel gear 42 that meshes with it to rotate, thereby realizing the rotation of the rotary plate 41, the rotary encoder 1, and the mast 200. The other specific structures of the bevel gear welding 6 are consistent with the prior art and can be referred to the prior art, and will not be described in detail here.

[0036] like Figure 1 , Figure 10 and Figure 11 As shown, the lower slewing mast structure 100 also includes two slewing cylinders 7 for driving the bevel gear 6 to rotate. Each slewing cylinder 7 includes a piston rod 71 and a cylinder lug 72, with the cylinder lug 72 connected to the lower end of the cylinder body 51. Each piston rod 71 is mounted between two transmission connection holes 620 at the same end of the two cylinder seat lug plates 62, allowing the piston rods 71 ​​of the two slewing cylinders 7 to be movably connected to both ends of the cylinder seat lug plates 62. When the piston rods 71 ​​of the slewing cylinders 7 extend or retract, the cylinder seat lug plates 62 are pulled up and down, causing the bevel gear 61 to swing left and right, and the bevel gear 42 to rotate accordingly. This causes the slewing plate 41, the slewing encoder 1, and the mast 200 to all rotate, thus achieving slewing control of the mast 200. Other specific structures of the slewing cylinders 7 are consistent with existing technology and can be referred to accordingly; they will not be elaborated here.

[0037] In this embodiment, the installation sequence of the above-mentioned components is as follows: the cylindrical weld 5 connects two rotary cylinders 7, the cylinder lugs 72 of the rotary cylinders 7 are connected to the lower end of the cylindrical body 51, and one end of the piston rod 71 is connected to the bevel gear weld 6; at the same time, the rotary bearing 8 is installed on the cylindrical body connecting plate 52 of the cylindrical body weld 5. The upper end of the cylindrical body connecting plate 52 of the cylindrical body weld 5 is successively connected to the rotary bearing 8 and the rotary table weld 4. The bevel gear 42 of the rotary table weld 4 meshes with the bevel bevel gear 61 of the bevel gear weld 6, driving the rotary plate 41 to rotate. The mast 200 is then connected to the rotary plate 41. Therefore, to install the rotary encoder 1, it is necessary to install the rotary encoder 1 on the rotary axis, with the fixed end installed on the cylindrical weld 5 and the movable end installed on the upper part of the rotary bearing 8.

[0038] After the bevel gear welding 6 is assembled, the multi-folded coupling bracket 3 is installed. The coupling bracket 3 has a hollow tube 31 in the middle, with a gap between the hollow tube 31 and the bevel gear 42. The wiring harness L of the rotary encoder 1 is threaded into the hollow tube 31, and laid along the mounting plate 32 and through each wire tube 35, and then through the wire outlet hole 50 on the outer wall of the cylinder welding 5, with the wire end exiting the sealed cavity of the cylinder 51. The rotary plate 41 is connected to the bevel gear 42 and the bevel bevel gear 61, so the bevel gear 42 of the rotary plate 41 is placed on the rotary bearing 8 with one side facing down, its center passing through the hollow tube 31 of the coupling bracket 3 without colliding with the coupling bracket 3. The meshing of the bevel gear 42 and the bevel bevel gear 61 is then achieved by fine-tuning the rotary plate 41. After the coupling bracket 3 and the rotary table welding 4 are assembled, the coupling 33 is installed on the coupling bracket 3. Next, the rotary encoder 1 is installed on the encoder bracket 2, with a rubber pad 23 inserted in the middle. The rotary encoder shaft 11 of the rotary encoder 1 passes through the encoder seat 22 and connects to the upper part of the coupling 33. The bottom of the rotary encoder 1 and the encoder bracket 2 are connected through four holes. After connecting the rotary plate 41, the rotary bearing 8, and the cylinder connecting plate 52, the rotary plate 41 is connected to the encoder bracket 2 with screws, and then a cover plate (not shown) is installed for protection. The wiring harness L passes through the wire hole 210 on the encoder bracket 2 to the hollow tube 31 of the coupling bracket 3 and finally exits through the outer wall of the cylinder 51, thus realizing the installation of the rotary encoder 1 within a closed structure.

[0039] During the above installation process, the coupling bracket 3 will not affect the assembly of the bevel gear welding 6, and the rotary cylinder 7 will not interfere with the coupling bracket 3 when it drives the cylinder seat ear plate 62 to swing up and down. The wiring harness L of the rotary encoder 1 is arranged along a fixed path and will not be tangled in it when the gears mesh. This solution enables the installation of the rotary encoder 1 in a sealed rotary structure, while the wiring harness L of the rotary encoder 1 comes out from the fixed end, which is safe and reliable.

[0040] Combination Figure 10 and Figure 11 As shown, where, Figure 10 In the diagram, L represents the wiring harness of the rotary encoder 1. The wiring harness L of the rotary encoder 1 exits from the base 21, runs along the coupling 33, enters the inner cavity of the hollow tube 31 through the first wire hole 310, exits the hollow tube 31 through the second wire hole 311, then runs along the mounting plate 32, passes through the area between the mounting plate 32 and the wiring tube 35, and through the third wire hole 320, exiting through the outlet hole 50 of the cylinder 51 and connecting to external equipment. In the prior art, the wiring harness L of the rotary encoder 1 is led out from the movable end, requiring a wire hole to be drilled on the outer wall of the mast 200. This installation of the wiring harness L of the rotary encoder 1 is inconvenient; it requires pre-threading the wiring harness L into the mast 200 before installing the rotary encoder 1; or a large process hole is designed on the mast 200 to facilitate visual observation and manual pulling out of the wiring harness L. The mast 200 comes in various lengths, including 3 meters and 6 meters. Different mast 200 models are selected based on the mast height. Each time the mast 200 is replaced, the wiring harness L needs to be disconnected. Furthermore, the wiring harness L on the outer wall of the mast 200 needs to be left at a relatively long distance, increasing the risk of damage from foreign objects as the mast rotates. In this case, however, the wiring harness L of the rotary encoder 1 exits from the welded section 5 at the fixed end of the cylinder, avoiding the need to disconnect the wiring harness L when replacing the mast 200, reducing the risk of damage to the wiring harness L, and increasing safety.

[0041] In this embodiment, the collaborative operation of the aforementioned components is as follows: The mast 200 of the pile frame needs to achieve a rotation function. By rotating to different positions, the working device can be changed. The working device is installed on a track. There are two types of tracks on the lower rotating mast section. By rotating, the upper mast 200 is aligned with different tracks, thereby realizing the change of different working devices. The cylinder is welded to the fixed end and connected to the rotating cylinder 7. The piston rod 71 of the rotating cylinder 7 is connected to the bevel gear weld 6. Through the pushing and pulling of the two piston rods 71, the bevel gear 61 is oscillating. The bevel gear 61 meshes with the bevel gear 42. The bevel gear 61 drives the bevel gear 42 and the rotating plate 41 to rotate. The rotating plate 41 is connected to the rotating encoder 1 and the mast 200, thus realizing the rotation of the mast 200.

[0042] In summary, the above-described embodiments of this utility model provide a rotary encoder mounting mechanism and a lower rotary mast structure 100. The rotary encoder mounting mechanism includes an encoder bracket 2 and a coupling bracket 3. The lower rotary mast structure 100 includes a rotary encoder mounting mechanism, a rotary table weld 4, a cylindrical weld 5, a bevel gear weld 6, a rotary cylinder 7, and a rotary bearing 8. The cylindrical weld 5 at the fixed end is spaced apart from the rotary table weld 2 at the movable end, and the rotary encoder 1 is detachably connected to the cylindrical weld 5 via the coupling bracket 3. Through the coupling bracket 3, the rotary encoder 1 can achieve interference-free wire threading in confined spaces. The encoder bracket 2 allows the wire harness L of the rotary encoder 1 to be led out from the rotary encoder 1 to the upper part of the rotary table weld 2, while simultaneously allowing the wire harness L to pass through the cavity of the hollow tube 31 and exit through the wire outlet hole 50 on the outer wall of the cylindrical weld 5 at the fixed end. The wire harness L is well protected, being completely enclosed within the shaft tube and the cylindrical wall. Meanwhile, the coupling bracket 3, installed in an extremely confined space, avoids the trajectory of the cylinder seat lug 62's up-and-down swing and the meshing trajectory of the bevel gear 61 and bevel gear 42, preventing the wiring harness L from becoming tangled or knotted. Therefore, this design not only enables the installation of the rotary encoder 1 inside the mast 200, even when the lower slewing mast cavity is sealed and installing the rotary encoder is difficult, but also prevents the wiring harness L from rotating with the mast 200, reducing the risk of damage to the wiring harness L from foreign objects. Furthermore, when replacing the mast 200, there is no need to disconnect the wiring harness L, improving the convenience and intelligence of the multi-functional pile driver operation. The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A rotary encoder mounting mechanism for mounting a rotary encoder, characterized in that, The device includes a coupling bracket, with the rotary encoder connected to the top of the coupling bracket. The coupling bracket includes a hollow tube, a coupling, and a mounting plate. The bottom end of the coupling is connected to the top end of the hollow tube. The hollow tube is perpendicular to the mounting plate, and the bottom end of the hollow tube is connected to the middle of the mounting plate. The top end of the hollow tube is connected to the rotary encoder through the coupling. The wiring harness of the rotary encoder is laid inside the hollow tube and extends downward toward the mounting plate.

2. The rotary encoder mounting mechanism as described in claim 1, characterized in that, The hollow tube has a first wire hole and a second wire hole on its top and bottom circumferential surfaces, respectively. The wiring harness of the rotary encoder enters the hollow tube through the first wire hole and exits to the outside of the hollow tube through the second wire hole.

3. The rotary encoder mounting mechanism as described in claim 2, characterized in that, The mounting plate is bent at both ends toward the side where the hollow tube is located, so that the mounting plate is formed into a bent plate. A third wire hole is provided through the plate surface at one of the bent positions of the mounting plate. The wiring harness of the rotary encoder is laid along the mounting plate and passes through the third wire hole.

4. The rotary encoder mounting mechanism as described in claim 3, characterized in that, The coupling bracket also includes multiple conduits located on the same side of the hollow tube. The two ends of each conduit are bent and fixed on the mounting plate. The wiring harness of the rotary encoder is laid along the multiple conduits and passed through each conduit.

5. The rotary encoder mounting mechanism as described in any one of claims 1-4, characterized in that, The rotary encoder mounting mechanism also includes an encoder bracket, on which the rotary encoder is mounted. The encoder bracket is located at the top of the coupling bracket, and the hollow tube extends toward the encoder bracket and passes through the encoder bracket to connect with the rotary encoder.

6. A lower slewing mast structure, characterized in that, The invention includes a rotary encoder mounting mechanism as described in any one of claims 1-5 and a cylindrical weld, wherein the encoder bracket is disposed outside the cylindrical weld and located at the top of the cylindrical weld, the mounting plate is disposed inside the cylindrical weld and both ends of the mounting plate are assembled to the cylindrical weld, the bottom end of the hollow tube is located inside the cylindrical weld, and the top end of the hollow tube extends upward to the outside of the cylindrical weld.

7. The lower slewing mast structure as described in claim 6, characterized in that, The cylindrical welding includes a cylindrical body, and the inner side wall of the cylindrical body is provided with a wire outlet hole. The wiring harness of the rotary encoder is laid along the mounting plate and extends to the outside through the wire outlet hole.

8. The lower slewing mast structure as described in claim 6, characterized in that, The lower slewing mast structure also includes a slewing table welded on the cylinder welded assembly. The slewing table welded assembly includes a slewing plate, which is mounted on the top of the cylinder welded assembly. The encoder bracket is located above the slewing plate and fixed on the slewing plate.

9. The lower slewing mast structure as described in claim 8, characterized in that, The rotary table welding also includes a bevel gear, which is fixedly disposed in the middle of the rotary plate and extends into the interior of the cylindrical welding. A through hole is provided in the middle of the bevel gear, and the hollow tube passes through the through hole upward and extends out above the rotary plate.

10. The lower slewing mast structure as described in claim 9, characterized in that, The lower slewing mast structure also includes a bevel gear welded within the cylindrical body welded section. The bevel gear welded section includes a bevel bevel gear and two cylinder seat lugs that are drivenly connected to the bevel gear. The bevel bevel gear is drivenly connected to the two cylinder seat lugs and meshes with the bevel gear.

Images