A horizontal rotary table lubrication mechanism

Abstract

This utility model relates to the technical field of horizontal rotary tables, and in particular to a lubrication mechanism for a horizontal rotary table, comprising an oil storage chamber, a telescopic rod, an elastic element, and an oil tank. The oil storage chamber is located inside the rotating shaft of the horizontal rotary table transmission assembly, and is positioned near the bottom end of the rotating shaft. The oil storage chamber has several oil outlet holes spaced circumferentially on its annular wall near its top end. A support is provided at the bottom of the telescopic rod, which is located inside the guide sleeve of the horizontal rotary table transmission assembly. The top end of the telescopic rod passes through the rotating shaft and extends into the oil storage chamber, and a piston is provided at the top of the telescopic rod to seal against the oil storage chamber. The elastic element is sleeved on the outside of the telescopic rod and positioned between the support and the rotating shaft. The oil tank stores lubricating oil and is connected to the oil storage chamber via a pipe, on which a pump and a solenoid valve are installed. A continuous channel is provided inside the guide sleeve, support, telescopic rod, and piston for the pipe to pass through. This mechanism enables automatic lubrication, precise control of oil quantity, reduced labor intensity, and reduced waste and pollution.

Description

Technical Field

[0001] This utility model relates to the technical field of horizontal rotary tables, and in particular to a lubrication mechanism for horizontal rotary tables. Background Technology

[0002] Horizontal rotary tables are widely used in the machining field. For example, in machining centers, they are often used in conjunction with worktables to achieve lifting and rotating operations, significantly improving machining efficiency. A horizontal rotary table includes a transmission assembly capable of rotation and lifting. During operation, there is relative movement between some parts of this transmission assembly. Good lubrication reduces frictional resistance, alleviates wear on machine parts, lowers energy consumption, and simultaneously cleans and cools the surfaces of parts, extending the service life of the equipment.

[0003] Existing horizontal rotary table lubrication mechanisms typically lubricate components that perform rotational or lifting movements by periodically adding lubricant through oil inlets to critical friction points. This method is not only labor-intensive but also makes it difficult to precisely control the amount of lubricant, easily leading to insufficient or excessive lubrication. Insufficient lubrication can cause accelerated wear on transmission components, shortening the equipment's lifespan; excessive lubrication, on the other hand, wastes lubricant and may also cause excess grease to spill and contaminate the working environment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a horizontal rotary table lubrication mechanism that can automatically lubricate and precisely control the oil volume.

[0005] This utility model discloses a horizontal rotary table lubrication mechanism, comprising an oil storage chamber, a telescopic rod, an elastic element, and an oil tank. The oil storage chamber is located inside the rotating shaft of the horizontal rotary table transmission assembly, near the bottom end of the shaft. Several oil outlet holes are circumferentially spaced on the annular wall near the top of the oil storage chamber. A support is provided at the bottom of the telescopic rod, which is located inside the guide sleeve of the horizontal rotary table transmission assembly. The top end of the telescopic rod passes through the rotating shaft and extends into the oil storage chamber. A piston that seals with the oil storage chamber is provided at the top of the telescopic rod. The elastic element is sleeved on the outside of the telescopic rod and located between the support and the rotating shaft. The oil tank stores lubricating oil and is connected to the oil storage chamber via a pipe. A pump and a solenoid valve are installed on the pipe. Through channels are provided inside the guide sleeve, support, telescopic rod, and piston. These channels are aligned to form a continuous through-path for the pipe to pass through.

[0006] As a preferred embodiment of this utility model, the piston is made of an elastic material and is shaped like a frustum with its tip pointing towards the oil reservoir.

[0007] As a preferred embodiment of this utility model, the inner wall of the oil storage cavity is provided with several annular protrusions spaced along the axial direction, and the inner diameter of each protrusion gradually decreases from bottom to top. The outer wall of the piston is provided with an annular groove that can be adapted to the protrusions.

[0008] As a preferred embodiment of this utility model, a temperature sensor is installed inside the oil tank, and a heating wire for heating the lubricating oil inside the oil tank is wound around the outer surface of the oil tank.

[0009] As a preferred embodiment of this utility model, a heat-insulating protective cover is installed around the oil tank, and a cavity is formed between the protective cover and the outer surface of the oil tank, with the heating wire disposed inside the cavity.

[0010] As a preferred embodiment of this utility model, the protective cover is composed of two half-shells spliced ​​together, with one side of the two half-shells rotatably connected to the outer surface of the oil tank and the other side snapped in place.

[0011] As a preferred embodiment of this utility model, the pipeline is provided with a number of filter elements arranged sequentially along the flow direction of the lubricating oil.

[0012] As a preferred embodiment of this utility model, a liquid level sensor is installed inside the oil storage tank, and an oil inlet that can be connected to an external lubricating oil source is provided on the oil storage tank. A cover is provided at the oil inlet, and the cover is movably connected to the oil storage tank by a connecting rope.

[0013] Compared with the prior art, the horizontal rotary table lubrication mechanism of this utility model, when working, the up and down movement of the rotating shaft drives the piston to squeeze the oil storage chamber. After the oil storage chamber is under pressure, it automatically adds internal lubricating oil to the mating point between the rotating shaft and the rotating shaft sleeve, which can realize the linkage between lubrication and the operation of the rotary table. The sealing fit between the piston and the oil storage chamber can ensure the pressure transmission efficiency and the sealing of the lubricating oil supply, ensuring the stability and reliability of the lubrication process. The oil tank continuously supplies lubricating oil to the oil storage chamber through pipelines, the pump body can control the delivery power of the lubricating oil, and the solenoid valve can accurately regulate the timing and duration of oil supply. The cooperation of these three can ensure that the oil storage chamber always maintains a suitable oil volume, eliminating the need for manual periodic replenishment, reducing labor intensity, and avoiding problems of insufficient or excessive lubrication. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the oil storage tank structure of this utility model;

[0016] The following are labels in the attached diagram: 1. Oil reservoir; 11. Oil outlet; 12. Raised ridge; 2. Telescopic rod; 21. Support; 22. Piston; 221. Groove; 3. Elastic element; 4. Oil tank; 41. Temperature sensor; 42. Heating wire; 43. Liquid level sensor; 44. Oil inlet; 45. Cover; 46. Connecting rope; 5. Pipeline; 51. Pump body; 52. Solenoid valve; 53. Filter element; 6. Protective cover; 61. Cavity; A. Shaft; B. Guide sleeve; C. Shaft sleeve. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] like Figure 1As shown, this embodiment provides a horizontal turntable lubrication mechanism, including an oil storage chamber 1, a telescopic rod 2, an elastic element 3, and an oil reservoir 4. Specifically, the oil storage chamber 1 is located inside the rotating shaft A of the horizontal turntable transmission assembly and is positioned near the bottom end of the rotating shaft A; the oil storage chamber 1 has several oil outlet holes 11 spaced circumferentially on its annular wall near its top end. The number of oil outlet holes 11 can be set according to actual lubrication requirements, and their diameter can be adjusted according to the viscosity of the lubricating oil to ensure that the lubricating oil flows out evenly and in appropriate amounts; the bottom of the telescopic rod 2 is provided with a support 21, which is located inside the guide sleeve B of the horizontal turntable transmission assembly. The top end of the telescopic rod 2 passes through the rotating shaft A and extends into the oil storage chamber 1, and the top of the telescopic rod 2 is provided with a piston 22 that seals with the oil storage chamber 1; the elastic element 3 is sleeved on the outside of the telescopic rod 2 and is located on the support. Between 21 and the rotating shaft A, the elastic element 3 can be a spring or a rubber sleeve, etc., which can play a good buffering role when the rotating shaft A moves downward; the oil tank 4 stores lubricating oil and is connected to the oil storage chamber 1 through the pipe 5. The pipe 5 can be made of copper pipe, stainless steel pipe or high-strength plastic hose, etc., and its inner diameter is determined according to the flow requirements of the lubricating oil. The pipe 5 is equipped with a pump body 51 for providing power for the delivery of lubricating oil and a solenoid valve 52 for controlling the on and off; the guide sleeve B, support 21, telescopic rod 2 and piston 22 are all provided with through channels. The channels are aligned with each other to form a continuous through path for the pipe 5 to pass through, ensuring the stable installation of the pipe 5. In this embodiment, by setting the oil outlet 11 on the annular wall near the top of the oil storage chamber 1, when the transmission assembly of the horizontal turntable is working, the rotating shaft A will move up and down. Since the oil storage chamber 1 is located inside the rotating shaft A and near its bottom, the oil storage chamber 1 will move up and down with the rotating shaft A. Because the guide sleeve B is relatively fixed, the positions of the telescopic rod 2 and the top piston 22 are relatively stable. When the rotating shaft A and the oil storage chamber 1 move downward, the piston 22 squeezes the lubricating oil in the oil storage chamber 1. At this time, the oil outlet 11 is within the range of the rotating sleeve C, which is axially slidingly connected to the rotating shaft A. The solenoid valve 72 on the pipeline 5 is in the closed state, which can effectively prevent... The lubricating oil in the oil storage chamber 1 flows back to the oil storage tank 4 through the pipe 5 under the action of extrusion pressure, ensuring that all the extrusion pressure is used to push the lubricating oil out. Under the action of extrusion pressure, the lubricating oil flows out through the oil outlet 11 and can act on the mating part of the rotating shaft A and the rotating shaft sleeve C. The amount of oil output is determined by the extrusion stroke of the piston 22 and the specification of the oil outlet 11, which matches the movement amplitude of the rotating shaft 5 to avoid insufficient lubrication. When the rotating shaft A and the oil storage chamber 1 move upward, the solenoid valve 72 opens, and the pump body 71 delivers a metered amount of lubricating oil from the oil storage tank 4 to the oil storage chamber 1 to replenish it. The replenishment amount can be precisely adjusted by the control of the pump body 71 and the solenoid valve 72 to prevent over-lubrication.

[0020] The piston 22 is made of an elastic material and is shaped like a frustum with its tip pointing towards the oil reservoir 1. The elastic material can be nitrile rubber or fluororubber. When the piston 22 contacts the inner wall of the oil reservoir 1, it can undergo elastic deformation under certain pressure, tightly fitting the inner wall of the oil reservoir 1. This effectively enhances the sealing between the two, preventing the lubricating oil in the oil reservoir 1 from leaking from the gap between the piston 22 and the oil reservoir 1 during the extrusion process. This ensures that the lubricating oil can flow out from the oil outlet 11 in a concentrated manner, guaranteeing the lubrication effect. Through the frustum-shaped structure, when the piston 22 extrudes the lubricating oil, the lubricating oil will be subjected to a force that diffuses in all directions. The inclined side of the frustum shape can guide this force more concentratedly towards the annular wall of the oil reservoir 1, causing the lubricating oil to flow out from the oil outlet 11 more efficiently, reducing the retention of lubricating oil in the oil reservoir 1, and ensuring the timeliness and sufficiency of lubrication.

[0021] The inner wall of the oil reservoir 1 is provided with several annular protrusions 12 spaced axially, and the inner diameter of each protrusion 12 gradually decreases from bottom to top. The outer wall of the piston 22 is provided with annular grooves 221 that can be adapted to the protrusions 12. The number of protrusions 12 and grooves 221 can be set according to the length of the oil reservoir 1, and the height of the protrusions 12 and the depth of the grooves 221 can be set according to the sealing requirements. When the piston 22 reciprocates in the oil reservoir 1, the annular protrusions 12 and the annular grooves 221 form a multi-stage sealing fit, which can further enhance the sealing between the piston 22 and the oil reservoir 1. At the same time, a certain damping can be formed during the movement of the piston 22, so that the extrusion of lubricating oil is more stable.

[0022] like Figure 2 As shown, in order to ensure that the lubricating oil maintains good fluidity under different temperature environments, a temperature sensor 41 is installed in the oil tank 4, and a heating wire 42 for heating the lubricating oil in the oil tank 4 is wound around the outer surface of the oil tank 4. The temperature sensor 41 can monitor the temperature of the lubricating oil in the oil tank 4 in real time and transmit the signal to the control system. When the temperature sensor 41 detects that the lubricating oil temperature is too low, the heating wire 42 can heat it. The power of the heating wire 42 can be selected according to the capacity of the oil tank 4 and the heating requirements.

[0023] A heat-insulating protective cover 6 is installed around the oil reservoir 4, forming a cavity 61 between the protective cover 6 and the outer surface of the oil reservoir 4. The heating wire 42 is placed inside the cavity 61. The protective cover 6 can be made of materials such as heat-insulating cotton or foam plastic, which has a heat-insulating function and can reduce the heat exchange between the oil reservoir 4 and the external environment. The cavity 61 forms an air insulation layer. Air has a low thermal conductivity, which can effectively prevent heat from being lost from the oil reservoir 4 to the outside and block the influence of low external temperature on the oil reservoir 4. When the heating wire 42 heats the lubricating oil in the oil reservoir 4, it can reduce heat loss, improve heating efficiency, and allow the lubricating oil to reach the appropriate temperature more quickly and remain stable, ensuring its fluidity to meet lubrication requirements. At the same time, the cavity 61 provides an independent space for the heating wire 42, preventing it from contacting external objects and being contaminated, corroded, or damaged, thus extending its service life. The protective cover 6 can also insulate the high temperature of the heating wire 42 during operation, preventing burns to operators and damage to surrounding components due to high temperature, thereby improving overall safety.

[0024] The protective cover 6 is composed of two half-shells spliced ​​together. One side of the two half-shells is rotatably connected to the outer surface of the oil tank 4, and can be rotated by hinges, etc. The other side is snapped together, which can be done by the cooperation of buckles and slots, so as to facilitate the opening and closing of the protective cover 6 and facilitate the maintenance and repair of the oil tank 4 and the heating wire 42.

[0025] During storage, transportation, or circulation, lubricating oil may become contaminated with impurities such as dust, metal shavings, and colloids. If these impurities enter the oil reservoir 1 with the lubricating oil and flow towards the mating point between the rotating shaft 5 and the shaft sleeve, they will exacerbate the wear of the transmission components and may even cause jamming, affecting the normal operation of the equipment. To prevent impurities in the lubricating oil from entering the oil reservoir 1 and the transmission components, thus affecting the lubrication effect and equipment lifespan, a number of filter elements 53 are arranged sequentially along the flow direction of the lubricating oil inside the pipeline 5. The filter elements 53 can be metal mesh, filter paper, etc., and their filtration accuracy can be selected according to requirements. The number of filter elements 53 can be set according to filtration requirements. By using a number of filter elements 73 arranged sequentially along the flow direction, impurities of different particle sizes can be gradually intercepted, forming a progressive filtration effect and improving filtration efficiency and cleanliness.

[0026] To promptly monitor the lubricating oil level in the oil reservoir 4, a level sensor 43 is installed inside the oil reservoir 4. The level sensor 43 can monitor the liquid level in real time and transmit the signal to the control system, issuing an alarm when the liquid level is too low. The oil reservoir 4 is equipped with an oil filling port 44 that can be connected to an external lubricating oil source. The diameter of the oil filling port 44 is suitable for adding lubricating oil. A cover 45 is installed at the oil filling port 44. The connection between the cover 45 and the oil filling port 44 can be a threaded connection, a snap-fit ​​connection, etc. The cooperation between the cover 45 and the oil filling port 45 can prevent dust and other impurities from entering the oil reservoir 4. The cover 45 is movably connected to the oil reservoir 4 via a connecting rope 46, which can be made of nylon rope, etc., to prevent the cover 45 from being lost.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A horizontal rotary table lubrication mechanism, characterized in that, The assembly includes an oil storage chamber (1), a telescopic rod (2), an elastic element (3), and an oil tank (4). The oil storage chamber (1) is located inside the rotating shaft (A) of the horizontal turntable transmission assembly and is positioned near the bottom end of the rotating shaft (A). The oil storage chamber (1) has several oil outlet holes (11) spaced circumferentially on its annular wall near its top end. The telescopic rod (2) has a support (21) at its bottom, which is located inside the guide sleeve (B) of the horizontal turntable transmission assembly. The top end of the telescopic rod (2) passes through the rotating shaft (A) and extends into the oil storage chamber (1). The top end of the telescopic rod (2) is provided with an outlet hole (11) that is connected to the top end of the rotating shaft (A). The oil storage chamber (1) is sealed with a piston (22); the elastic element (3) is sleeved on the outside of the telescopic rod (2) and is located between the support (21) and the rotating shaft (A); the oil storage tank (4) stores lubricating oil and is connected to the oil storage chamber (1) through a pipe (5); a pump body (51) and a solenoid valve (52) are provided on the pipe (5); the guide sleeve (B), the support (21), the telescopic rod (2), and the piston (22) are all provided with through channels, and the channels are aligned with each other to form a continuous through path for the pipe (5) to pass through.

2. The horizontal rotary table lubrication mechanism as described in claim 1, characterized in that, The piston (22) is made of elastic material and is generally truncated cone-shaped with its tip pointing toward the oil reservoir (1).

3. The horizontal rotary table lubrication mechanism as described in claim 1, characterized in that, The inner wall of the oil storage chamber (1) is provided with a number of annular protrusions (12) spaced along the axial direction. The inner diameter of each protrusion (12) gradually decreases from bottom to top. The outer wall of the piston (22) is provided with an annular groove (221) that can be adapted to the protrusions (12).

4. The horizontal rotary table lubrication mechanism as described in claim 1, characterized in that, A temperature sensor (41) is installed inside the oil storage tank (4), and a heating wire (42) for heating the lubricating oil inside the oil storage tank (4) is wound around the outer surface of the oil storage tank (4).

5. The horizontal rotary table lubrication mechanism as described in claim 4, characterized in that, A heat-insulating protective cover (6) is installed around the oil tank (4). A cavity (61) is formed between the protective cover (6) and the outer surface of the oil tank (4). The heating wire (42) is disposed in the cavity (61).

6. The horizontal rotary table lubrication mechanism as described in claim 5, characterized in that, The protective cover (6) is composed of two half-shells spliced ​​together. One side of the two half-shells is rotatably connected to the outer surface of the oil storage tank (4), and the other side is snapped in place.

7. The horizontal rotary table lubrication mechanism as described in claim 1, characterized in that, The pipe (5) is provided with a number of filter elements (53) arranged sequentially along the flow direction of the lubricating oil.

8. The horizontal rotary table lubrication mechanism as described in claim 1, characterized in that, The oil storage tank (4) is equipped with a liquid level sensor (43), and the oil storage tank (4) is equipped with an oil inlet (44) that can be connected to an external lubricating oil source. The oil inlet (44) is equipped with a cover (45), and the cover (45) is movably connected to the oil storage tank (4) by a connecting rope (46).

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