A high-strength torsion-resistant excavator slewing platform

Abstract

The utility model relates to the technical field of rotary platform, concretely is a kind of truss type high-strength torsion excavator rotary platform, including a plurality of fastening mechanism respectively between two adjacent ball, the fastening mechanism includes spacer block, and spacer block outside wall is equipped with rectangular hole, the rectangular hole inside fixed sleeve is connected with sleeve frame, and sleeve frame top and bottom both ends are equipped with circular hole. In the utility model, by installing supporting outer ring and supporting inner ring, the two snap rings of supporting outer ring are respectively sleeved in the outside of the two snap rings of supporting inner ring, then the rotating rod is rotated to drive the adjacent bidirectional screw rod to rotate by bevel gear, the bidirectional screw rod drives the two arc clamping plates to move away from each other by U-shaped rod, the snap ring of the adjacent two sleeve connections is clamped in the inside of adjacent arc clamping plate, the relative position of supporting outer ring and supporting inner ring is positioned by bidirectional screw rod, U-shaped plate and arc clamping plate, to improve the connection stability of supporting outer ring and supporting inner ring.

Description

Technical Field

[0001] This utility model relates to the field of slewing platform technology, specifically a truss-type high-strength anti-torsion excavator slewing platform. Background Technology

[0002] Excavator slewing platforms mostly utilize slewing bearings as supporting and rotating components. A typical slewing bearing consists of an inner ring and an outer ring, both with raceways. When the inner ring is fitted inside the outer ring and the two raceways are aligned, multiple balls and multiple spacers are staggered within the aligned raceways. The balls provide support and positioning for the inner and outer rings, while the spacers are located between adjacent balls to separate them, preventing direct contact and interference. This helps reduce friction and wear between the balls and avoids noise and vibration caused by ball collisions. However, the spacers are usually smaller than the balls, resulting in fewer connection points for support and positioning between the inner and outer rings. This can reduce the structural stability of both the inner and outer rings, making them more prone to deformation under stress. Utility Model Content

[0003] The purpose of this utility model is to provide a truss-type high-strength anti-torsion excavator slewing platform to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A truss-type high-strength torsion-resistant excavator slewing platform includes a slewing bearing. The slewing bearing includes an outer bearing ring and an inner bearing ring, with the inner bearing ring located inside the outer bearing ring. Both the outer and inner bearing rings are provided with raceways, and multiple balls are arranged between the two raceways.

[0006] Multiple fastening mechanisms are located between two adjacent balls. Each fastening mechanism includes an isolation block with a rectangular hole on its outer wall. A sleeve frame is fixedly fitted inside the rectangular hole, and circular holes are provided at both ends of the sleeve frame. A bidirectional screw is rotatably connected between two of the circular holes, and U-shaped plates are screwed onto both ends of the bidirectional screw. An arc-shaped clamping plate is fixedly connected to each U-shaped plate. Clamping rings are fixedly connected to both sides of the raceway of the outer and inner rings of the support. Two adjacent clamping rings located on the outer and inner rings of the support are movably clamped inside the adjacent arc-shaped clamping plates.

[0007] Furthermore, the cross-section of any arc-shaped card is U-shaped.

[0008] Furthermore, the outer wall of the support outer ring is provided with a connecting hole, and the connecting hole is connected to the raceway of the support outer ring.

[0009] Furthermore, the connecting hole on the outer ring of the support is movably engaged with a plug, and the outer wall of the plug is provided with an insertion hole. The top surface of the outer ring of the support is provided with a screw-in hole, and a positioning pin is screwed into the screw-in hole. The bottom end of the positioning pin is movably inserted into the insertion hole.

[0010] Furthermore, each frame is rotatably connected to a rotating rod on one side, and a bevel gear is fixedly sleeved on one end of the outer wall of each rotating rod and the outer wall of the adjacent bidirectional screw, with the two adjacent bevel gears meshing.

[0011] Furthermore, multiple guide rods are fixedly connected to both the top and bottom ends of the sleeve frame, and a sleeve hole is opened on one side of any U-shaped plate and any arc-shaped card plate, and any guide rod is slidably sleeved inside the adjacent sleeve hole.

[0012] Furthermore, each of the arc-shaped plates has multiple locking holes on its inner wall, and each locking hole contains a steel ball that is rotatably fitted inside.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By installing the outer and inner support rings, the two retaining rings of the outer support ring are respectively fitted onto the two retaining rings of the inner support ring. Then, rotating the rotating rod causes the rotating rod to drive the adjacent double-acting screw to rotate through the bevel gear. The double-acting screw drives the two arc-shaped retaining plates to move away from each other through the U-shaped rod. This causes the retaining rings of the outer and inner support rings to lock into the adjacent arc-shaped retaining plates. The double-acting screw, U-shaped plate, and arc-shaped retaining plates are used to assist in positioning the relative positions of the outer and inner support rings, thereby improving the connection stability of the outer and inner support rings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the blocking block and positioning pin structure in this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the inner support ring, outer support ring, and fastening mechanism in this utility model;

[0018] Figure 4 This is an exploded view of the fastening mechanism structure in this utility model.

[0019] In the diagram: 100, outer ring of support; 110, plug; 111, locating pin; 200, inner ring of support; 300, retaining ring; 400, fastening mechanism; 401, bevel gear; 410, isolation block; 420, sleeve frame; 421, guide rod; 430, double-acting screw; 431, U-shaped plate; 432, arc-shaped clamping plate; 433, steel ball; 440, rotating rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 In this embodiment of the utility model, a truss-type high-strength anti-torsion excavator slewing platform includes a slewing bearing. The slewing bearing includes an outer support ring 100 and an inner support ring 200, and the inner support ring 200 is located inside the outer support ring 100. Both the outer support ring 100 and the inner support ring 200 are provided with raceways, and multiple balls are provided between the two raceways.

[0022] Multiple fastening mechanisms 400 are located between two adjacent balls. Each fastening mechanism 400 includes a spacer block 410, and the outer wall of the spacer block 410 has a rectangular hole. A sleeve frame 420 is fixedly fitted inside the rectangular hole. Both ends of the sleeve frame 420 have circular holes. A bidirectional screw 430 is rotatably connected between the two circular holes. Both ends of the bidirectional screw 430 are screwed with U-shaped plates 431. Each U-shaped plate 431 is fixedly connected with an arc-shaped clamping plate 432. Both sides of the raceway of the outer ring 100 and the inner ring 200 are fixedly connected with retaining rings 300. Two adjacent retaining rings 300 located on the outer ring 100 and the inner ring 200 are movably clamped inside the adjacent arc-shaped clamping plates 432.

[0023] Specifically, the outer support ring 100, the inner support ring 200, multiple balls, and multiple spacers 410 constitute a slewing bearing. The multiple balls and multiple spacers 410 are staggered. The raceway of the outer support ring 100 is located on its inner sidewall, and the raceway of the inner support ring 200 is located on its outer sidewall. When the inner support ring 200 is located inside the outer support ring 100 and the two raceways are aligned, the two retaining rings 300 on the inner support ring 200 are respectively fitted inside the adjacent retaining rings 300 on the outer support ring 100. The U-shaped plate 431 has threaded holes for screwing onto adjacent bidirectional screws 430. By rotating the U-shaped plate 431, the arc-shaped clamping plate 432 is moved, causing the arc-shaped clamping plate 432 to clamp two adjacent retaining rings 300 located on the outer ring 100 and the inner ring 200 of the support respectively. Thus, the bidirectional screws 430 on multiple isolation blocks 410, the U-shaped plate 431 and the arc-shaped clamping plate 432 are used to assist in positioning the relative positions of the outer ring 100 and the inner ring 200 of the support, increasing the connection points between the outer ring 100 and the inner ring 200 of the support, improving the structural stability of the slewing bearing, and thus improving the connection stability between the outer ring 100 and the inner ring 200 of the support.

[0024] Example 1

[0025] like Figure 1-4 As shown, in this embodiment, the cross-section of any arc-shaped card plate 432 is U-shaped. The outer wall of the support outer ring 100 is provided with a connecting hole, and the connecting hole is connected to the raceway of the support outer ring 100. The connecting hole on the support outer ring 100 is movably engaged with a blocking block 110, and the outer wall of the blocking block 110 is provided with an insertion hole. The top surface of the support outer ring 100 is provided with a screw-in hole, and a positioning pin 111 is screwed into the screw-in hole. The bottom end of the positioning pin 111 is movably inserted into the insertion hole.

[0026] In this embodiment, the two retaining rings 300 on the outer support ring 100 and the inner support ring 200, which are sleeved and abutted together, can be embedded between the two arms of the adjacent arc-shaped retaining plates 432, thereby improving the connection stability between the outer support ring 100 and the inner support ring 200. When installing the slewing bearing, the roller and the spacer block 410 can be placed into the two raceways through the connecting hole, and then the plug block 110 can be inserted into the connecting hole. Then, the positioning pin 111 can be screwed into the engagement hole, so that the positioning pin 111 is inserted into the insertion hole to fix the plug block 110, thereby using the plug block 110 to close the connecting hole. The top of the positioning pin 111 is threaded for engaging with the engagement hole.

[0027] like Figure 3-4 As shown, in this embodiment, a rotating rod 440 is rotatably connected to one side of any frame 420. A bevel gear 401 is fixedly sleeved on one end of the outer wall of any rotating rod 440 and the outer wall of the adjacent bidirectional screw 430. Two adjacent bevel gears 401 mesh with each other. Multiple guide rods 421 are fixedly connected to both the top and bottom ends of the frame 420. A sleeve hole is opened on one side of any U-shaped plate 431 and any arc-shaped clamping plate 432. Any guide rod 421 is slidably sleeved inside the adjacent sleeve hole.

[0028] In practice, when installing the slewing bearing, after the isolation block 410 is placed into the raceway through the connecting hole, a screwdriver can be used to turn the rotating rod 440 through the connecting hole, so that the rotating rod 440 drives the adjacent bidirectional screw 430 to rotate through the two bevel gears 401. The bidirectional screw 430 is a screw with both positive and negative threads. The two U-shaped plates 431 on the bidirectional screw 430 are limited by the adjacent guide rod 421 and the sleeve hole, so that when the bidirectional screw 430 rotates, it can drive the two adjacent U-shaped plates 431 to move towards or away from each other, thereby facilitating the adjustment of the position of the arc-shaped clamping plate 432.

[0029] Example 2

[0030] Based on Embodiment 1, steel balls 433 are provided to facilitate the movement of the arc-shaped card plate 432.

[0031] like Figure 3-4As shown, in this embodiment, each arc-shaped card plate 432 has multiple card holes on its inner wall, and each card hole has a steel ball 433 rotatably fitted inside it.

[0032] In practice, the arc-shaped clamping plate 432 contacts the retaining ring 300 between its two arms through the steel ball 433, so that when the outer ring 100 and the inner ring 200 of the support rotate relative to each other, the arc-shaped clamping plate 432 can use the steel ball 433 to reduce the friction between itself and the adjacent retaining ring 300, which facilitates the rotation of the slewing bearing.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A truss-type high-strength anti-torsion excavator slewing platform, comprising a slewing bearing, the slewing bearing comprising an outer bearing ring (100) and an inner bearing ring (200), wherein the inner bearing ring (200) is located inside the outer bearing ring (100), both the outer bearing ring (100) and the inner bearing ring (200) are provided with raceways, and a plurality of balls are provided between the two raceways, characterized in that, include: Multiple fastening mechanisms (400) are located between two adjacent balls. Each fastening mechanism (400) includes an isolation block (410), and the outer wall of the isolation block (410) is provided with a rectangular hole. A sleeve frame (420) is fixedly fitted inside the rectangular hole. Both ends of the sleeve frame (420) are provided with circular holes. A bidirectional screw (430) is rotatably connected between the two circular holes. Both ends of the bidirectional screw (430) are screwed with U-shaped plates (431). Each U-shaped plate (431) is fixedly connected with an arc-shaped clamping plate (432). Both sides of the raceway of the outer ring (100) and the inner ring (200) of the support are fixedly connected with retaining rings (300). Two retaining rings (300) located on the outer ring (100) and the inner ring (200) of the support and adjacent to each other are movably clamped inside the adjacent arc-shaped clamping plates (432).

2. The truss-type high-strength torsion-resistant excavator slewing platform according to claim 1, characterized in that, The cross-section of any arc-shaped plate (432) is U-shaped.

3. The truss-type high-strength torsion-resistant excavator slewing platform according to claim 2, characterized in that, Each arc-shaped plate (432) has multiple card holes on its inner wall, and each card hole has a steel ball (433) rotatably fitted inside.

4. The truss-type high-strength torsion-resistant excavator slewing platform according to any one of claims 1-3, characterized in that, The outer wall of the support outer ring (100) is provided with a connecting hole, and the connecting hole is connected to the raceway of the support outer ring (100).

5. The truss-type high-strength torsion-resistant excavator slewing platform according to claim 4, characterized in that, The connecting hole on the outer ring (100) of the support is movably engaged with a plug (110), and the outer wall of the plug (110) is provided with an insertion hole. The top surface of the outer ring (100) of the support is provided with a screw-in hole, and a positioning pin (111) is screwed into the screw-in hole. The bottom end of the positioning pin (111) is movably inserted into the insertion hole.

6. The truss-type high-strength torsion-resistant excavator slewing platform according to claim 1, characterized in that, Each frame (420) is rotatably connected to a rotating rod (440) on one side. One end of the outer wall of each rotating rod (440) is fixedly sleeved with a bevel gear (401) on the outer wall of the adjacent bidirectional screw (430). The two adjacent bevel gears (401) mesh with each other.

7. The truss-type high-strength torsion-resistant excavator slewing platform according to claim 6, characterized in that, Multiple guide rods (421) are fixedly connected to both the top and bottom ends of the sleeve frame (420). Each U-shaped plate (431) and each arc-shaped plate (432) has a sleeve hole on one side, and each guide rod (421) is slidably sleeved inside the adjacent sleeve hole.

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