Self-lubricating reinforcing sleeve of marine slewing gear

Abstract

The invention relates to the technical field of marine cranes, and discloses a self-lubricating reinforcing sleeve for a marine slewing gear, which solves the problem that the radial bearing capacity of a slewing speed reducer is insufficient when the existing marine crane is in an inclined working condition, and comprises a motor, a speed reducer is mounted at the bottom of the motor, and a gear shaft is connected to the speed reducer; the outer side of the gear shaft is sleeved with a gear and a self-lubricating reinforcing sleeve; according to the device, through cooperation between a side shaft and second L-shaped plates and cooperation between positioning columns and first L-shaped plates, placement of an outer ring is facilitated, and through cooperation between an L-shaped round rod and a lifting ring and cooperation between a spring and a fixing ring, two U-shaped plates can descend to sleeve the outer sides of the two positioning columns correspondingly, so that the two U-shaped plates can clamp and fix the two second L-shaped plates correspondingly; the self-lubricating reinforcing sleeve can be conveniently mounted on the outer side of the gear shaft, so that the influence of the radial force of the gear shaft on the speed reducer is reduced, the radial bearing capacity of the speed reducer is increased, and the miniaturization of the crane slewing mechanism is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of marine cranes, in particular to a self-lubricating reinforcement sleeve of a marine slewing device. Background Art

[0002] Marine cranes are devices and machinery used for loading and unloading cargoes on ships, mainly boom devices, deck cranes and other loading and unloading machinery. When the crane is climbing and rotating in an inclined condition, the gear shaft output by the reducer bears a large radial force. The standard reducer has a large rotation torque margin, but insufficient radial force. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a self-lubricating reinforcement sleeve for a marine slewing device, which effectively solves the problem of insufficient radial bearing capacity of the slewing reducer of the current marine crane when in a tilted working condition.

[0004] To achieve the above object, the present invention provides the following technical solutions: a self-lubricating reinforcement sleeve of a marine rotary device, comprising a motor, a reducer is installed at the bottom of the motor, a gear shaft is connected to the reducer, a gear and a self-lubricating reinforcement sleeve are sleeved on the outer side of the gear shaft, the self-lubricating reinforcement sleeve is located above the gear, a supporting mechanism is provided between the self-lubricating reinforcement sleeve and the reducer, and a driving mechanism and a limiting mechanism are provided on the outer side of the gear shaft;

[0005] The supporting mechanism includes a mounting ring fixed to the outer side of the reducer, the bottom of the mounting ring is symmetrically fixedly connected with two L-shaped plates one, the inner bottom walls of the two L-shaped plates one are fixedly connected with positioning columns, the outer side of the self-lubricating reinforcement sleeve is fixedly sleeved with an outer ring, the outer side of the outer ring is symmetrically rotationally connected with two side shafts, the outer sides of the two side shafts are fixedly sleeved with L-shaped plates two, the inner top walls of the two L-shaped plates two are respectively fitted with the inner bottom walls of the two L-shaped plates one, and the two L-shaped plates two are respectively sleeved on the outer sides of the two positioning columns.

[0006] Preferably, a lifting ring is provided on the outer side of the gear shaft, the lifting ring is located between the two L-shaped plates, and the bottom of the lifting ring is symmetrically fixedly connected with two U-shaped plates, and the two U-shaped plates are respectively located directly above the two positioning columns.

[0007] Preferably, the inner sides of the two L-shaped plates are fixedly connected with L-shaped round rods, the lifting rings are movably sleeved on the outer sides of the two L-shaped round rods, the outer sides of the two L-shaped round rods are fixedly sleeved with fixing rings, and the two fixing rings are located above the lifting rings, and springs are fixedly connected between the two fixing rings and the lifting rings, and the two springs are respectively sleeved on the outer sides of the two L-shaped round rods.

[0008] Preferably, the driving mechanism comprises a U-shaped frame fixed to the bottom of the mounting ring, a lifting plate is provided at the bottom of the U-shaped frame, the lifting plate is movably sleeved on the outside of the two L-shaped round rods, and the top of the lifting plate abuts against the bottom of the lifting ring.

[0009] Preferably, the bottom of the U-shaped frame is fixedly connected to a bottom cylinder, the gear shaft passes through the U-shaped frame and the bottom cylinder, and the gear shaft does not contact the U-shaped frame and the bottom cylinder, a collar is provided on the outside of the bottom cylinder, a plurality of auxiliary rods are fixedly connected at equal angles to the bottom of the collar, an annular groove is provided on the outside of the collar, and the lifting plate is rotatably connected to the collar through the annular groove.

[0010] Preferably, the outer side of the base tube is provided with an external thread, the inner side of the collar is provided with an internal thread matching the external thread, and the collar thread is sleeved on the outer side of the base tube.

[0011] Preferably, the limiting mechanism comprises two insertion rods symmetrically located at the bottom of the U-shaped frame, and two insertion tubes are symmetrically fixedly connected to the outer side of the outer ring, and the inner diameters of the two insertion tubes are equal to the outer diameters of the two insertion rods.

[0012] Preferably, two U-shaped round rods are symmetrically fixedly connected to the bottom of the U-shaped frame, and sliders are movably sleeved on the outer sides of the two U-shaped round rods. Abutment wheels located at the bottom of the U-shaped frame are installed on the tops of the two sliders, and the tops of the two insertion rods are respectively fixed to the bottoms of the two sliders.

[0013] Preferably, two side blocks are symmetrically fixedly mounted on the outer side of the lifting plate, and movable rods are rotatably connected to the outer sides of the two side blocks, and the top ends of the two movable rods are rotatably connected to the bottoms of the two sliding blocks respectively.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention facilitates the placement of the outer ring through the cooperation between the side shaft and the L-shaped plate 2 and the positioning column and the L-shaped plate 1, and facilitates the two U-shaped plates to be lowered and respectively sleeved on the outside of the two positioning columns through the cooperation between the L-shaped round rod and the lifting ring and the spring and the fixing ring, so that the two U-shaped plates can respectively clamp and fix the two L-shaped plates 2, making it easier for the self-lubricating reinforcement sleeve to be installed on the outside of the gear shaft, thereby reducing the influence of the radial force of the gear shaft on the reducer, thereby increasing the radial bearing capacity of the reducer and realizing the miniaturization of the crane slewing mechanism.

[0016] (2) The invention facilitates the sliding of the lifting plate along the two L-shaped round rods through the cooperation between the bottom cylinder, the sleeve ring and the annular groove. When the lifting plate rises, it can push the lifting ring to make the two U-shaped plates rise. At the same time, the two springs are compressed, so that the two L-shaped plates are placed on the two L-shaped plates one respectively. When the lifting plate descends, the restriction effect on the lifting ring can be released, so that the lifting ring can slide downward along the two L-shaped round rods under the action of the elastic force of the two springs, so that the two U-shaped plates can descend and clamp the two L-shaped plates two respectively.

[0017] (3) The invention facilitates the downward sliding of the lifting plate along the two L-shaped round rods through the cooperation between the bottom tube, the sleeve ring and the annular groove, and facilitates the two insertion rods to approach each other and be inserted into the two insertion tubes respectively through the cooperation between the side block and the movable rod and the slider and the U-shaped round rod, and can limit the position of the outer ring, thereby facilitating the stable installation of the self-lubricating reinforcement sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached picture:

[0020] Figure 1 This is a schematic diagram of the structure of the self-lubricating reinforcement sleeve of the marine slewing device of the present invention;

[0021] Figure 2 It is a schematic diagram of the supporting mechanism structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the outer ring and the lifting ring of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the driving mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the disassembled structure of the bottom cylinder and the lifting plate of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the limiting mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the rod insertion structure of the present invention.

[0027] In the figure: 1. motor; 2. supporting mechanism; 201. mounting ring; 202. L-shaped plate 1; 203. spring; 204. L-shaped round rod; 205. L-shaped plate 2; 206. outer ring; 207. U-shaped plate; 208. lifting ring; 209. fixing ring; 2010. positioning column; 2011. side shaft; 3. driving mechanism; 301. U-shaped frame; 302. bottom cylinder; 303. lifting plate; 304. sleeve ring; 305. auxiliary rod; 306. annular groove; 4. limiting mechanism; 401. insertion rod; 402. insertion cylinder; 403. movable rod; 404. side block; 405. slider; 406. abutment wheel; 407. U-shaped round rod; 5. gear; 6. gear shaft; 7. self-lubricating reinforcement sleeve; 8. reducer. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Embodiment 1, by Figure 1-Figure 7 The present invention includes a motor 1, a reducer 8 is installed at the bottom of the motor 1, a gear shaft 6 is connected to the reducer 8, a gear 5 and a self-lubricating reinforcement sleeve 7 are sleeved on the outer side of the gear shaft 6, the self-lubricating reinforcement sleeve 7 is located above the gear 5, a supporting mechanism 2 is provided between the self-lubricating reinforcement sleeve 7 and the reducer 8, and a driving mechanism 3 and a limiting mechanism 4 are provided on the outer side of the gear shaft 6.

[0030] Embodiment 2, on the basis of embodiment 1, the support mechanism 2 includes a mounting ring 201 fixed to the outside of the reducer 8, the bottom of the mounting ring 201 is symmetrically fixedly connected with two L-shaped plates 202, the inner bottom walls of the two L-shaped plates 202 are fixedly connected with positioning columns 2010, the outer side of the self-lubricating reinforcement sleeve 7 is fixedly sleeved with an outer ring 206, the outer side of the outer ring 206 is symmetrically rotatably connected with two side shafts 2011, the outer sides of the two side shafts 2011 are fixedly sleeved with L-shaped plates 205, the inner top walls of the two L-shaped plates 205 are respectively fitted with the inner bottom walls of the two L-shaped plates 202, and the two L-shaped plates 205 are respectively sleeved on the outer sides of the two positioning columns 2010, and the outer side of the gear shaft 6 A lifting ring 208 is provided, and the lifting ring 208 is located between the two L-shaped plates 202. Two U-shaped plates 207 are symmetrically fixedly connected to the bottom of the lifting ring 208. The two U-shaped plates 207 are respectively located directly above the two positioning columns 2010. The inner sides of the two L-shaped plates 202 are fixedly connected with L-shaped round rods 204. The lifting ring 208 is movably sleeved on the outer sides of the two L-shaped round rods 204. The outer sides of the two L-shaped round rods 204 are fixedly sleeved with fixing rings 209, and the two fixing rings 209 are both located above the lifting ring 208. Springs 203 are fixedly connected between the two fixing rings 209 and the lifting ring 208. The two springs 203 are respectively sleeved on the outer sides of the two L-shaped round rods 204.

[0031] First, slide the lifting ring 208 upward along the two L-shaped round rods 204, driving the two U-shaped plates 207 to rise. At this time, the two springs 203 are compressed. Then, the self-lubricating reinforcement sleeve 7 is sleeved on the outside of the gear shaft 6, and then the two L-shaped plates 205 are rotated and sleeved on the outside of the two positioning columns 2010 respectively, until the inner top walls of the two L-shaped plates 205 are respectively abutted against the inner bottom walls of the two L-shaped plates 1 202, and then the lifting ring 208 is released. At this time, the two springs 203 are reset and drive the lifting ring 208 to slide downward along the two L-shaped round rods 204. At the same time, the two U-shaped plates 207 descend and are respectively sleeved on the outside of the two positioning columns 2010, until the two U-shaped plates 207 are respectively abutted against the two L-shaped plates 205, completing the installation and fixation of the self-lubricating reinforcement sleeve 7, reducing the influence of the radial force of the gear shaft 6 on the reducer 8, and finally increasing the radial bearing capacity of the reducer 8, thereby realizing the miniaturization of the crane slewing mechanism.

[0032] Embodiment 3, on the basis of embodiment 1, the driving mechanism 3 comprises a U-shaped frame 301 fixed to the bottom of the mounting ring 201, a lifting plate 303 is provided at the bottom of the U-shaped frame 301, the lifting plate 303 is movably sleeved on the outside of the two L-shaped round rods 204, and the top of the lifting plate 303 is in contact with the bottom of the lifting ring 208, the bottom of the U-shaped frame 301 is fixedly connected with a bottom cylinder 302, the gear shaft 6 passes through the U-shaped frame 301 and the bottom cylinder 302, and the gear shaft 6 does not contact the U The mold frame 301 is in contact with the bottom cylinder 302. A collar 304 is provided on the outer side of the bottom cylinder 302. A plurality of auxiliary rods 305 are fixedly connected at equal angles to the bottom of the collar 304. An annular groove 306 is provided on the outer side of the collar 304. The lifting plate 303 is rotatably connected to the collar 304 through the annular groove 306. An external thread is provided on the outer side of the bottom cylinder 302. An internal thread matching the external thread is provided on the inner side of the collar 304. The collar 304 is threadedly sleeved on the outer side of the bottom cylinder 302.

[0033] First, the auxiliary rod 305 is rotated by the corresponding auxiliary rod 305 to drive the ring 304 to rotate. Since the ring 304 is threadedly sleeved on the outer side of the bottom cylinder 302, the ring 304 moves longitudinally while rotating. Since the lifting plate 303 is rotatably connected to the ring 304 through the annular groove 306, the lifting plate 303 is driven to slide along the two L-shaped round rods 204. When the lifting plate 303 rises, the lifting ring 208 is pushed upward, driving the two U-shaped plates 207 to rise. At the same time, the two springs 203 are compressed, which makes it easy to place the two L-shaped plates 205 on the two L-shaped plates 1 202 respectively. When the lifting plate 303 descends, the restriction effect on the lifting ring 208 is released. At this time, the lifting ring 208 slides downward along the two L-shaped round rods 204 under the action of the elastic force of the two springs 203. Finally, the two U-shaped plates 207 descend to complete the clamping and fixing of the two L-shaped plates 205.

[0034] Embodiment 4, on the basis of embodiment 1, the limiting mechanism 4 includes two plug rods 401 symmetrically located at the bottom of the U-shaped frame 301, two plug tubes 402 are symmetrically fixedly connected to the outer side of the outer ring 206, the inner diameter values ​​of the two plug tubes 402 are equal to the outer diameter values ​​of the two plug rods 401, the bottom of the U-shaped frame 301 is symmetrically fixedly connected with two U-shaped round rods 407, the outer sides of the two U-shaped round rods 407 are movably sleeved with sliders 405, the tops of the two sliders 405 are installed with abutment wheels 406 located at the bottom of the U-shaped frame 301, the tops of the two plug rods 401 are respectively fixed to the bottoms of the two sliders 405, and the outer side of the lifting plate 303 is symmetrically fixedly installed with two side blocks 404, the outer sides of the two side blocks 404 are rotatably connected with movable rods 403, and the tops of the two movable rods 403 are respectively rotatably connected to the bottoms of the two sliders 405;

[0035] First, rotate the ring 304 to drive the lifting plate 303 to slide downward along the two L-shaped round rods 204, and drive the two side blocks 404 to descend, and then drive the two sliders 405 to slide along the two U-shaped round rods 407 respectively through the two movable rods 403. At the same time, the two abutment wheels 406 roll on the bottom of the U-shaped frame 301 to ensure the stability of the two sliders 405 when moving, and then drive the two insertion rods 401 to approach each other and insert them into the two insertion tubes 402 respectively, limit the position of the outer ring 206, and finally complete the stable installation of the self-lubricating reinforcement sleeve 7.

Claims

1. A self-lubricating reinforcement sleeve for a marine rotary device, comprising a motor (1), characterized in that: A reducer (8) is installed at the bottom of the motor (1), a gear shaft (6) is connected to the reducer (8), a gear (5) and a self-lubricating reinforcement sleeve (7) are sleeved on the outer side of the gear shaft (6), the self-lubricating reinforcement sleeve (7) is located above the gear (5), a supporting mechanism (2) is provided between the self-lubricating reinforcement sleeve (7) and the reducer (8), and a driving mechanism (3) and a limiting mechanism (4) are provided on the outer side of the gear shaft (6); The support mechanism (2) comprises a mounting ring (201) fixed to the outside of the reducer (8); two L-shaped plates (202) are symmetrically fixedly connected to the bottom of the mounting ring (201); positioning columns (2010) are fixedly connected to the inner bottom walls of the two L-shaped plates (202); an outer ring (206) is fixedly sleeved on the outer side of the self-lubricating reinforcement sleeve (7); two side shafts (2011) are symmetrically rotationally connected to the outer side of the outer ring (206); L-shaped plates (205) are fixedly sleeved on the outer sides of the two side shafts (2011); the inner top walls of the two L-shaped plates (205) are respectively fitted with the inner bottom walls of the two L-shaped plates (202); and the two L-shaped plates (205) are respectively sleeved on the outer sides of the two positioning columns (2010).

2. A self-lubricating reinforcement sleeve for a marine slewing device according to claim 1, characterized in that: A lifting ring (208) is provided on the outer side of the gear shaft (6), and the lifting ring (208) is located between the two L-shaped plates (202). Two U-shaped plates (207) are symmetrically fixedly connected to the bottom of the lifting ring (208), and the two U-shaped plates (207) are respectively located directly above the two positioning columns (2010).

3. A self-lubricating reinforcement sleeve for a marine slewing device according to claim 1, characterized in that: The inner sides of the two L-shaped plates (202) are fixedly connected with L-shaped round rods (204); the lifting rings (208) are movably sleeved on the outer sides of the two L-shaped round rods (204); the outer sides of the two L-shaped round rods (204) are fixedly sleeved with fixing rings (209); and the two fixing rings (209) are located above the lifting rings (208); springs (203) are fixedly connected between the two fixing rings (209) and the lifting rings (208); and the two springs (203) are respectively sleeved on the outer sides of the two L-shaped round rods (204).

4. A self-lubricating reinforcement sleeve for a marine slewing device according to claim 1, characterized in that: The driving mechanism (3) comprises a U-shaped frame (301) fixed to the bottom of the mounting ring (201); a lifting plate (303) is provided at the bottom of the U-shaped frame (301); the lifting plate (303) is movably sleeved on the outer sides of two L-shaped round rods (204); and the top of the lifting plate (303) abuts against the bottom of the lifting ring (208).

5. A self-lubricating reinforcement sleeve for a marine slewing device according to claim 4, characterized in that: The bottom of the U-shaped frame (301) is fixedly connected to a bottom cylinder (302); the gear shaft (6) passes through the U-shaped frame (301) and the bottom cylinder (302), and the gear shaft (6) does not contact the U-shaped frame (301) and the bottom cylinder (302); a collar (304) is provided on the outside of the bottom cylinder (302); a plurality of auxiliary rods (305) are fixedly connected at equal angles to the bottom of the collar (304); an annular groove (306) is provided on the outside of the collar (304); and the lifting plate (303) is rotatably connected to the collar (304) via the annular groove (306).

6. A self-lubricating reinforcement sleeve for a marine slewing device according to claim 5, characterized in that: The outer side of the bottom cylinder (302) is provided with an external thread, the inner side of the collar (304) is provided with an internal thread matching the external thread, and the collar (304) is threadably sleeved on the outer side of the bottom cylinder (302).

7. The self-lubricating reinforcement sleeve for a marine slewing device according to claim 1, characterized in that: The limiting mechanism (4) comprises two insertion rods (401) symmetrically located at the bottom of the U-shaped frame (301), and two insertion tubes (402) are symmetrically fixedly connected to the outside of the outer ring (206), and the inner diameters of the two insertion tubes (402) are equal to the outer diameters of the two insertion rods (401).

8. The self-lubricating reinforcement sleeve for a marine slewing device according to claim 4, characterized in that: Two U-shaped round rods (407) are symmetrically fixedly connected to the bottom of the U-shaped frame (301), and sliders (405) are movably sleeved on the outer sides of the two U-shaped round rods (407). Abutment wheels (406) located at the bottom of the U-shaped frame (301) are installed on the tops of the two sliders (405), and the top ends of the two insertion rods (401) are respectively fixed to the bottoms of the two sliders (405).

9. A self-lubricating reinforcement sleeve for a marine slewing device according to claim 4, characterized in that: Two side blocks (404) are symmetrically fixedly installed on the outer side of the lifting plate (303), and the outer sides of the two side blocks (404) are rotatably connected to movable rods (403), and the top ends of the two movable rods (403) are rotatably connected to the bottoms of the two sliding blocks (405).

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