Rotary lubricating device for rotary table of elevator

Abstract

The utility model relates to the technical field of mechanical engineering, and discloses a rotary lubricating device for a rotary table of an elevator, which comprises a base, the rotating table is arranged at the top of the lifting table; the lubricating oil tank is arranged at the top of the lifting platform; a dynamic lubrication mechanism prolongs the service life of mechanical parts, reduces abrasion, reduces maintenance frequency, and improves operation efficiency and safety of equipment. The design meets the requirements of modern industry for efficient and safe elevator equipment, the stability and flexibility of rotating parts are ensured, and the problems that when an existing elevator rotary table rotates at high frequency, friction force is large, mechanical parts are rapidly abraded, and the service life of the equipment is shortened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, and particularly relates to a rotary lubrication device for a lift turntable. Background Art

[0002] With the wide application of modern industrial equipment, the lift, as an important vertical transportation tool, has been widely used in construction sites, warehousing logistics and other fields. The turntable of traditional lifts usually has a rotating function to facilitate the precise movement of materials or personnel in different directions. However, during the long-term use of the rotating system of existing lift turntables, some technical problems often occur.

[0003] Firstly, due to the frequent rotation of the turntable, especially when working in a high-load environment, the friction during rotation is large, which easily causes wear and fatigue of mechanical components, thereby shortening the service life of the equipment. Secondly, the existing lubrication methods are mostly manual regular addition of lubricants, and the situation of uneven or insufficient lubrication often occurs, resulting in blockage, increased noise during turntable rotation, and even rotation failure, seriously affecting the operation efficiency and safety of the equipment. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a rotary lubrication device for a lift turntable, aiming to alleviate the above problems to at least a certain extent.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A rotary lubrication device for a lift turntable, comprising:

[0007] A base, on the top of which there is a lifting platform;

[0008] A turntable arranged on the top of the lifting platform;

[0009] An oil tank arranged on the top of the lifting platform;

[0010] A connecting shaft seat arranged on the top of the lifting platform, a connecting cavity is opened in the connecting shaft seat, and a plurality of balls are arranged in the connecting cavity, and the balls are connected with the turntable;

[0011] A lifting component arranged between the base and the lifting platform, used for moving the lifting platform in a straight line up and down;

[0012] A rotating component arranged between the lifting platform and the turntable, used for rotating the turntable;

[0013] When the rotary table reaches the first preset angle, the grease in the lubricating oil tank can be transported into the connecting cavity. When the rotary table rotates to the second preset angle, the lubricating grease in the connecting cavity can be transported into the lubricating oil tank.

[0014] Preferably, the connecting shaft seat includes a base connected to the lifting table. Two annular bodies are connected to the base. The connecting cavity is formed between the base and the annular bodies. The bottom of the rotary table is connected with a support shaft extending into the connecting cavity and sleeved with the ball.

[0015] Preferably, a push plate is slidably connected in the lubricating oil tank. An oil cavity is formed between the push plate and the lubricating oil tank. A delivery pipe is communicated between the oil cavity and the connecting cavity. A liquid inlet pipe communicated with the oil cavity is connected to the lubricating oil tank.

[0016] Preferably, a reciprocating lead screw is rotatably connected to the lubricating oil tank. A threaded pipe threadedly connected with the reciprocating lead screw is connected to the push plate. A first gear is connected to the reciprocating lead screw. A second gear meshing with the first gear is connected to the bottom of the rotary table.

[0017] Preferably, the rotating component includes a motor connected to the bottom of the lifting table. The driving shaft of the motor passes through the lifting table and is connected to the rotary table.

[0018] Preferably, the lifting component includes a first shaft slidably connected to the base. A first support rod is rotatably connected to the first shaft. The top of the first support rod is rotatably connected to the lifting table. A second support rod is rotatably connected to the bottom of the base. The top of the second support rod is rotatably connected to a second shaft slidably connected to the lifting table. The first support rod and the second support rod are rotatably connected. A hydraulic cylinder is connected to the base. The telescopic shaft of the hydraulic cylinder is rotatably connected to the first shaft.

[0019] In summary, the main beneficial effects of the present utility model are as follows:

[0020] By setting up the lifting component, the lift can achieve efficient rotary scheduling of materials or personnel, enhancing the flexibility of adjusting the height. The lubrication system automatically operates when the rotating platform reaches the first preset angle. Lubricating grease is injected into the connection cavity, making full contact with the ball bearings, reducing friction, and ensuring the smooth operation of the turntable. The automatic recycling mechanism recovers the excess grease when rotating to the second preset angle, avoiding waste and accumulation, and maintaining the cleanliness and long-term operation of the lubrication system. The dynamic lubrication mechanism extends the service life of mechanical components, reduces wear, decreases the maintenance frequency, and improves the operating efficiency and safety of the equipment. This design meets the requirements of modern industry for efficient and safe lift equipment, ensures the stability and flexibility of the rotating components, and solves the problem that the existing lift turntable has large friction during high-frequency rotation, resulting in rapid wear of mechanical components and shortening the service life of the equipment. Description of the Drawings

[0021] Figure 1 is the schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is the schematic diagram of another perspective of the overall structure of the present utility model;

[0023] Figure 3 is the schematic diagram of the structure of the lifting component of the present utility model;

[0024] Figure 4 is the schematic diagram of the structure of the connecting shaft seat of the present utility model;

[0025] Figure 5 is the schematic diagram of the structure of the lubricating oil tank of the present utility model.

[0026] Reference Numerals:

[0027] 100, base; 101, lifting platform; 102, rotating platform; 103, lubricating oil tank; 104, connecting shaft seat; 105, connection cavity; 106, ball bearing;

[0028] 200, pedestal; 201, ring body; 202, support shaft;

[0029] 300, push plate; 301, grease cavity; 302, delivery pipe; 303, inlet pipe; 304, reciprocating lead screw; 305, threaded pipe; 306, first gear; 307, second gear; 308, motor;

[0030] 400, first shaft; 401, first support rod; 402, second support rod; 403, second shaft; 404, hydraulic cylinder. Detailed Embodiment

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Reference Figures 1 - 5 , a rotary lubrication device for a lift turntable, comprising:

[0033] A base 100, on the top of which there is a lifting platform 101;

[0034] A rotary table 102 provided on the top of the lifting platform 101;

[0035] An oil tank 103 provided on the top of the lifting platform 101;

[0036] A connecting shaft seat 104 provided on the top of the lifting platform 101, a connecting cavity 105 is opened in the connecting shaft seat 104, and a plurality of balls 106 are arranged in the connecting cavity 105, and the balls 106 are connected to the rotary table 102;

[0037] A lifting component provided between the base 100 and the lifting platform 101, which is used to move the lifting platform 101 up and down linearly;

[0038] A rotating component provided between the lifting platform 101 and the rotary table 102, which is used to rotate the rotary table 102;

[0039] Wherein, when the rotary table 102 rotates to the first preset angle, the grease in the oil tank 103 can be conveyed into the connecting cavity 105, and when the rotary table 102 rotates to the second preset angle, the lubricating grease in the connecting cavity 105 can be conveyed into the oil tank 103;

[0040] By setting up the lifting components, when the elevator needs to perform rotational scheduling of materials or personnel, the lifting platform 101 moves vertically under the action of the lifting components to achieve height adjustment at different levels. During this process, the rotating platform 102 located at the top of the lifting platform 101 rotates horizontally under the action of the rotating components, facilitating the items or personnel on the turntable to turn to different orientations according to requirements. During the rotation process, the lubricating grease in the lubricating oil tank 103 plays a crucial lubricating role. When the rotating platform 102 rotates to the first preset angle, the lubrication system starts to work. At this time, the grease in the lubricating oil tank 103 is automatically injected into the connecting cavity 105 located within the connecting shaft seat 104. After the lubricating grease enters the connecting cavity 105, it comes into direct contact with multiple balls 106, enabling the connecting part between the balls 106 and the rotating platform 102 to be fully lubricated. This lubrication process effectively reduces the friction between the balls 106 and the rotating platform 102 during rotation, ensuring the smooth and stable operation of the turntable. As the rotating platform 102 continues to rotate, when it reaches the second preset angle, the automatic recovery mechanism in the system starts to work, and the lubricating grease in the connecting cavity 105 is recycled back into the lubricating oil tank 103 through a circuit. This design not only avoids waste of lubricating grease but also prevents excessive grease accumulation in the connecting cavity 105, ensuring the cleanliness and long-term operation of the lubrication system. After the grease enters the connecting cavity 105 and comes into full contact with the multiple balls 106 therein, the grease can adhere to the balls 106 and the connecting cavity 105. By recycling the unnecessary and redundant lubricating grease, an appropriate amount of lubricating grease can be maintained on the surface of the balls 106, effectively reducing friction and improving the rotational flexibility of the balls 106. This dynamic lubrication mechanism not only ensures that the turntable maintains smooth and stable operation throughout the rotation process but also extends the service life of mechanical components and reduces wear between the balls 106 and the connecting cavity 105. At the same time, the design of automatically recovering excess lubricating grease avoids excessive grease accumulation, preventing problems such as system operation blockage or uneven lubrication caused by over-lubrication. In addition, the oil delivery and recovery process between the lubricating oil tank 103 and the connecting cavity 105 is automatically regulated by the angle change of the rotating platform 102 without manual intervention. This enables the entire lubrication system not only to supply oil automatically according to rotation requirements but also to have efficient recovery and cleaning functions, thereby significantly reducing the maintenance frequency of the equipment. The continuous lubrication of the equipment enables the turntable of the elevator to maintain its operating efficiency and safety under high load and long-term operation conditions, reducing mechanical failure rates and maintenance costs. In summary, through the setting of this device, the turntable of the elevator can automatically perform precise lubrication management under different working conditions, ensuring the smooth and flexible operation of the rotating components, while significantly improving the overall stability and service life of the equipment, meeting the requirements of modern industry for efficient and safe elevator equipment.

[0041] As a further aspect of the present utility model, the connecting shaft seat 104 includes a base 200 connected to the lifting table 101. Two annular bodies 201 are connected to the base 200. A connecting cavity 105 is formed between the base 200 and the annular bodies 201. The bottom of the rotating table 102 is connected with a support shaft 202 extending into the connecting cavity 105 and sleeved with the rolling balls 106.

[0042] By providing the support shaft 202, the supporting force and stability of the rotating table 102 can be effectively enhanced. The support shaft 202 can provide an additional support point during rotation, reducing the swing and vibration of the turntable during operation, thereby maintaining the overall balance of the device. At the same time, the design of the support shaft 202 in combination with the rolling balls 106 in the connecting cavity 105 makes the contact between the rotating table 102 and the rolling balls 106 closer, further improving the lubrication effect. During rotation, the rolling balls 106 move freely in the connecting cavity 105 and form a self-adjusting lubricating interface through cooperation with the support shaft 202. This design ensures that the lubricating grease can evenly cover the contact surface between the rolling balls 106 and the rotating table 102, reducing the friction coefficient and improving the rotation efficiency of the turntable.

[0043] As a further aspect of the present utility model, a push plate 300 is slidably connected in the lubricating oil tank 103. An oil cavity 301 is formed between the push plate 300 and the lubricating oil tank 103. A delivery pipe 302 communicates between the oil cavity 301 and the connecting cavity 105. The lubricating oil tank 103 is connected with a liquid inlet pipe 303 communicating with the oil cavity 301.

[0044] By setting the push plate 300, the liquid inlet pipe 303 can be closed, thereby preventing the ineffective outflow of lubricating grease. During the rotation of the rotary table 102, the position of the push plate 300 can be adjusted according to the change of the rotation angle. The lubricating grease in the grease cavity 301 is effectively pushed into the connection cavity 105 by the movement of the push plate 300. In this way, as the push plate 300 slides, the lubricating grease can smoothly flow into the connection cavity 105 through the delivery pipe 302, ensuring the continuous lubrication of the contact surface between the ball 106 and the rotary table 102. When the rotary table 102 reaches the preset angle, the movement of the push plate 300 enables the grease in the grease cavity 301 to be evenly distributed, ensuring that each ball 106 can obtain sufficient lubrication. This mechanism effectively reduces friction and improves the flexibility and operating efficiency of the rotary table 102. When the rotary table 102 continues to rotate to the second preset angle, the position of the push plate 300 can be reset at this time, which can create a negative pressure in the grease cavity 301. The negative pressure can use the delivery pipe 302 to extract the grease in the connection cavity 105, thereby pumping the excess lubricating grease back into the grease cavity 301 to keep the lubrication system clean and efficient. Through this negative pressure mechanism, the grease can smoothly flow back to the lubricating oil tank 103, avoiding the accumulation problem caused by excessive grease and ensuring the continuous normal operation of the system. After the push plate 300 is reset, the recovery of the lubricating grease not only avoids waste but also reduces the residence time of the grease in the connection cavity 105, preventing the grease from deteriorating or being contaminated and further extending the service life of the lubrication system. At the same time, the generation of negative pressure helps to improve the lubrication effect, ensuring that the contact surface between the ball 106 and the rotary table 102 always maintains a good lubrication state during each rotation.

[0045] As a further improvement of the present utility model, a reciprocating lead screw 304 is rotatably connected to the lubricating oil tank 103. A threaded pipe 305 threadedly connected to the reciprocating lead screw 304 is connected to the push plate 300. A first gear 306 is connected to the reciprocating lead screw 304. A second gear 307 meshing with the first gear 306 is connected to the bottom of the rotary table 102;

[0046] By setting the second gear 307, the rotation of the rotating table 102 can drive the second gear 307 to rotate, and the reciprocating lead screw 304 can be rotated through the first gear 306, thereby realizing the reciprocating movement of the push plate 300. When the rotating table 102 starts to rotate, the engagement of the second gear 307 and the first gear 306 causes the reciprocating lead screw 304 to rotate, pushing the threaded tube 305 to drive the push plate 300 to slide along the inside of the lubricating oil tank 103. The movement of the push plate 300 can precisely control the amount of lubricating grease in the grease chamber 301. By advancing or retracting, the grease can be effectively pushed into the connection chamber 105 and the grease in the connection chamber 105 can be effectively drawn back into the grease chamber 301. The design of the reciprocating lead screw 304 enhances the automation level of the lubrication system, ensuring that both the supply and recovery of lubricating grease can respond quickly without manual intervention during the operation of the turntable. This not only improves the working efficiency of the turntable but also reduces the equipment maintenance cost, ensuring the stability and safety of the elevator under high load and long-term operation. In short, by combining the reciprocating lead screw 304, the push plate 300 and the gear system, this lubrication device realizes intelligent and automated lubrication management, providing a strong guarantee for the smooth and efficient operation of the elevator.

[0047] As a further aspect of the present utility model, the rotating component includes a motor 308 connected to the bottom of the lifting platform 101, and the drive shaft of the motor 308 passes through the lifting platform 101 and is connected to the rotating table 102;

[0048] By setting the motor 308, the drive shaft of the motor 308 is directly connected to the rotating table 102, making the rotation process of the rotating table 102 more stable and controllable. The motor 308 provides precise rotational power. By adjusting the speed and direction of the motor 308, flexible control of the angle of the rotating table 102 can be achieved, thus meeting the operation requirements under different working conditions. At the same time, the setting of the motor 308 can cooperate seamlessly with the lubrication system. When the motor 308 drives the rotating table 102 to rotate, the synchronous gear mechanism will start the movement of the push plate 300 to achieve precise distribution of lubricating grease. This synergistic effect between the motor 308 and the lubrication system ensures that the rotating table 102 can still operate smoothly during high-frequency rotation operations, extends the service life of the equipment, and significantly reduces wear and failure rates.

[0049] As a further aspect of the present utility model, the lifting component includes a first shaft 400 slidably connected to the base 100. A first support rod 401 is rotatably connected to the first shaft 400. The top of the first support rod 401 is rotatably connected to the lifting platform 101. A second support rod 402 is rotatably connected to the bottom of the base 100. The top of the second support rod 402 is rotatably connected to a second shaft 403 slidably connected to the lifting platform 101. The first support rod 401 is rotatably connected to the second support rod 402. A hydraulic cylinder 404 is connected to the base 100. The telescopic shaft of the hydraulic cylinder 404 is rotatably connected to the first shaft 400;

[0050] By providing the hydraulic cylinder 404, precise lifting control of the lifting platform 101 can be achieved. The telescopic shaft of the hydraulic cylinder 404 is rotatably connected to the first shaft 400. When the hydraulic cylinder 404 operates, the pressure of the hydraulic oil acts inside the cylinder body, driving the telescopic shaft to extend or retract, thereby driving the first shaft 400 to move, and further affecting the relative position change of the first support rod 401 and the second support rod 402. This design ensures that the lifting platform 101 can achieve smooth and rapid lifting in the vertical direction. At the same time, the setting of the hydraulic cylinder 404 enhances the load-bearing capacity of the lifting system, enabling the lifting platform 101 to bear greater material or personnel weight. Through the efficient energy transfer of the hydraulic system, the lifting platform 101 can complete height adjustment in a short time, improving work efficiency. This hydraulic lifting mechanism effectively reduces the labor intensity of the operator and provides a safer working environment. Overall, through the configuration of the hydraulic cylinder 404, the lifting component not only improves the operation stability and safety of the lifting system, but also significantly enhances the operation convenience of the equipment, meeting the requirements of modern industry for efficient lifting solutions.

[0051] Although the embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary lubrication device for a lift turntable, characterized in that, Including: A base (100), on the top of which there is a lifting platform (101); A rotating platform (102) provided on the top of the lifting platform (101); A lubricating oil tank (103) provided on the top of the lifting platform (101); A connecting shaft seat (104) provided on the top of the lifting platform (101), a connecting cavity (105) is formed in the connecting shaft seat (104), and a plurality of balls (106) are arranged in the connecting cavity (105), and the balls (106) are connected to the rotating platform (102); A lifting component provided between the base (100) and the lifting platform (101) for moving the lifting platform (101) in a straight line up and down; A rotating component provided between the lifting platform (101) and the rotating platform (102) for rotating the rotating platform (102); Wherein, when the rotating platform (102) reaches a first preset angle, the grease in the lubricating oil tank (103) can be conveyed into the connecting cavity (105), and when the rotating platform (102) rotates to a second preset angle, the lubricating grease in the connecting cavity (105) can be conveyed into the lubricating oil tank (103).

2. The rotary lubrication device for the lift turntable according to claim 1, characterized in that, The connecting shaft seat (104) includes a base (200) connected to the lifting platform (101), two annular bodies (201) are connected to the base (200), the connecting cavity (105) is formed between the base (200) and the annular bodies (201), and the bottom of the rotating platform (102) is connected with a support shaft (202) extending into the connecting cavity (105) and sleeved with the balls (106).

3. A rotating lubrication device for an elevator turntable according to claim 1, characterized in that, A push plate (300) is slidably connected in the lubricating oil tank (103), an oil cavity (301) is formed between the push plate (300) and the lubricating oil tank (103), a conveying pipe (302) is communicated between the oil cavity (301) and the connecting cavity (105), and a liquid inlet pipe (303) communicated with the oil cavity (301) is connected to the lubricating oil tank (103).

4. A rotary lubrication device for a lift turntable according to claim 3, characterized in that, A reciprocating lead screw (304) is rotatably connected to the lubricating oil tank (103), a threaded pipe (305) threadedly connected to the reciprocating lead screw (304) is connected to the push plate (300), a first gear (306) is connected to the reciprocating lead screw (304), and a second gear (307) meshing with the first gear (306) is connected to the bottom of the rotating platform (102).

5. A rotary lubrication device for an elevator turntable according to claim 1, characterized in that, The rotating component includes a motor (308) connected to the bottom of the lifting platform (101), and a driving shaft of the motor (308) passes through the lifting platform (101) and is connected to the rotating platform (102).

6. The rotary lubrication device for the lift turntable according to claim 1, characterized in that, The lifting component includes a first shaft (400) slidably connected to the base (100). A first support rod (401) is rotatably connected to the first shaft (400). The top of the first support rod (401) is rotatably connected to the lifting platform (101). A second support rod (402) is rotatably connected to the bottom of the base (100). The top of the second support rod (402) is rotatably connected to a second shaft (403) slidably connected to the lifting platform (101). The first support rod (401) is rotatably connected to the second support rod (402). A hydraulic cylinder (404) is connected to the base (100). The telescopic shaft of the hydraulic cylinder (404) is rotatably connected to the first shaft (400).

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