Cylinder body lubricating mechanism

Abstract

The utility model is suitable for the technical field of servo electric cylinder lubrication, and provides a cylinder body lubrication mechanism which comprises a cylinder body, a gear motor, a transmission assembly and a ball screw. Wherein a first transmission wheel is installed at the end of the ball screw, a second transmission wheel is arranged above the first transmission wheel, and a transmission piece for connecting the first transmission wheel with the second transmission wheel in a transmission mode is arranged between the first transmission wheel and the second transmission wheel. The second transmission wheel is rotationally connected with the cylinder body, one end of the second transmission wheel is connected with a first connecting shaft, a closed hole with the inner diameter larger than the diameter of the first connecting shaft is horizontally formed in the cylinder body, the first connecting shaft extends to the inner bottom of the closed hole and then is connected with a first friction ball, a lubricating channel is vertically formed in the position, corresponding to the first friction ball, of the cylinder body, and the lubricating channel is located over the ball screw. An oil storage bin I is mounted at the lubricating channel outside the cylinder body; therefore, the servo electric cylinder can automatically lubricate the ball screw in the cylinder body of the servo electric cylinder, and oil liquid does not need to be manually injected and equipment does not need to be shut down.

Description

Technical Field

[0001] The utility model relates to the technical field of servo electric cylinder lubrication, in particular to a cylinder lubrication mechanism. Background Art

[0002] The servo electric cylinder is a modular product that integrates the motor and the screw into an integrated design. It is usually composed of components such as a reduction motor, a transmission assembly, a ball screw, a guide rail, an encoder and a controller. The reduction motor drives the ball screw to rotate through the transmission assembly, and the ball screw converts the rotational motion into linear motion, thereby realizing the telescopic action of the electric cylinder.

[0003] However, when the ball screw is working, its balls will roll between the thread track and the ball track. This rolling motion will produce a certain amount of friction. When this friction lasts too long, it will cause the ball screw to wear out and affect the stability and durability of the ball screw. Therefore, the servo electric cylinder needs to lubricate the ball screw regularly when in use to ensure the stability and durability of the ball screw.

[0004] However, since the ball screw is located inside the cylinder body, the existing lubrication method is mostly to set an oiling nozzle on the cylinder body. The worker first shuts down the equipment, and then manually fills oil into the oiling nozzle through an oil gun. The oil flows to the ball screw for lubrication. This not only increases the labor workload, but also delays the use of equipment and affects production progress.

[0005] As is known from the above, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] In view of the above-mentioned defects, the purpose of the utility model is to provide a cylinder lubrication mechanism, which can automatically lubricate the ball screw inside the cylinder of the servo electric cylinder without the need for manual oil filling and equipment shutdown.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a cylinder lubrication mechanism, including a cylinder, a reduction motor, a transmission assembly and a ball screw;

[0008] A transmission wheel 1 is installed at the end of the ball screw, a transmission wheel 2 is arranged above the transmission wheel 1, and a transmission member for connecting the two is arranged between the transmission wheel 1 and the transmission wheel 2; the transmission wheel 2 is rotatably connected to the cylinder body, and one end of the transmission wheel 2 is connected to a connecting shaft 1, a closed hole with an inner diameter larger than the diameter of the connecting shaft 1 is horizontally arranged inside the cylinder body, and a friction ball 1 is connected to the connecting shaft 1 after extending to the inner bottom of the closed hole, a lubrication channel is vertically arranged in the cylinder body corresponding to the position of the friction ball 1, the lubrication channel is located directly above the ball screw, and an oil storage tank 1 is installed outside the cylinder body at the lubrication channel.

[0009] According to the cylinder lubrication mechanism described in the utility model, a protective shell that encloses the transmission component is buckled on one side of the cylinder.

[0010] According to a cylinder lubrication mechanism described in the utility model, the transmission assembly includes sprocket one, sprocket two and a chain; the sprocket one is installed on the output shaft of the reduction motor, a connecting rod is extended on the side of the transmission wheel one away from the ball screw, the sprocket two is installed on the end of the connecting rod, and the chain transmission connects sprocket one and sprocket two; the end of the transmission wheel two away from the connecting shaft one is connected to the connecting shaft two, the connecting shaft two is extended to the top of the sprocket two and is connected to the friction ball two, an oil storage tank two is installed on the outside of the protective shell at the position corresponding to the friction ball two, and the oil storage tank two is connected to the inside of the protective shell.

[0011] According to the cylinder lubrication mechanism described in the utility model, a filling port is provided at the end of the second oil storage tank.

[0012] According to the cylinder lubrication mechanism described in the utility model, a filling port is provided at the end of the oil storage tank.

[0013] According to the cylinder lubrication mechanism described in the utility model, a bearing is sleeved on the outer periphery of the connecting shaft 1 near the friction ball 1.

[0014] The utility model provides a cylinder lubrication mechanism, which has the following beneficial effects:

[0015] 1. The friction ball is driven by the reduction motor to rotate and rub against the solid grease, so that the solid grease is melted by heat after friction. After the grease melts, it drips onto the ball screw along the inner wall of the lubrication channel, thereby achieving the purpose of automatically lubricating the ball screw inside the cylinder body, without the need for manual oil filling and equipment shutdown; and as the speed of the reduction motor changes, the rotation speed of the friction ball will also change accordingly, and the amount of grease melted will also change accordingly, so that the lubrication amount is consistent with the speed of the reduction motor.

[0016] 2. The reduction motor drives the friction ball 2 to rotate and rub against the solid grease, so that the solid grease is melted by heat after friction. After the grease melts, it is sprinkled on the sprocket 2 and the chain, thereby automatically lubricating the sprocket 1, sprocket 2 and the chain. There is no need for manual lubrication by the staff, reducing the number of maintenance times.

[0017] 3. By providing filling ports at the ends of the oil storage tank 1 and the oil storage tank 2, it is convenient for the staff to fill the solid grease into the oil storage tank 1 and the oil storage tank 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance of embodiment 1 of the utility model;

[0019] Figure 2This is a schematic diagram of the working principle of embodiment 1 of the utility model;

[0020] Figure 3 This is a schematic diagram of the working principle of embodiment 2 of the utility model;

[0021] In the figure, 1-reduction motor, 2-ball screw, 3-transmission wheel one, 31-connecting rod, 4-transmission wheel two, 41-coupling shaft one, 411-bearing, 42-friction ball one, 43-coupling shaft two, 44-friction ball two, 5-transmission member, 6-cylinder body, 61-closed hole, 62-lubrication channel, 63-oil storage tank one, 7-protective shell, 71-oil storage tank two, 8-sprocket two, 9-chain. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] See also Figure 1 , Figure 2The utility model provides an embodiment 1 of a cylinder lubrication mechanism, comprising a cylinder 6, a reduction motor 1, a transmission assembly and a ball screw 2; wherein a transmission wheel 3 is installed at the end of the ball screw 2, a transmission wheel 2 4 is arranged above the transmission wheel 3, and a transmission member 5 for connecting the transmission wheel 3 and the transmission wheel 2 4 is arranged between the transmission wheel 3 and the transmission wheel 2 4; the transmission wheel 2 4 is rotatably connected to the cylinder 6, and one end of the transmission wheel 2 4 is connected to a connecting shaft 41, a closed hole 61 with an inner diameter larger than the diameter of the connecting shaft 41 is horizontally arranged inside the cylinder 6, and the connecting shaft 41 is connected to a friction ball 42 after extending to the inner bottom of the closed hole 61, a lubrication channel 62 is vertically arranged in the cylinder 6 corresponding to the position of the friction ball 42, and the lubrication channel 62 is located directly above the ball screw 2, and an oil storage tank 63 is installed outside the cylinder 6 at the lubrication channel 62, and the oil storage tank 63 is filled with solid lubricant grease; thereby, when the reduction motor 1 drives the ball screw 2 to rotate through the transmission component, the transmission wheel 3 rotates synchronously with the ball screw 2, and at the same time, the rotating wheel 1 drives the transmission wheel 2 4 to rotate through the transmission member 5. When the transmission wheel 2 4 rotates, it drives the connecting shaft 41 and the friction ball 42 to rotate, so that the friction ball 42 rubs with the solid grease; and the friction between the friction ball 42 and the solid grease generates heat to melt the grease, and the grease drips onto the ball screw 2 along the inner wall of the lubrication channel 62 after the grease melts, thereby achieving the purpose of automatically lubricating the ball screw 2 inside the cylinder body 6, without the need for manual oil filling and shutdown of the equipment; and as the speed of the reduction motor 1 changes, the rotation speed of the friction ball 42 will also change accordingly, and the amount of grease melted will also change accordingly, so that the lubrication amount is consistent with the speed of the reduction motor 1.

[0026] See also Figure 1 , Figure 2 Preferably, in the present embodiment 1, a protective shell 7 is buckled on one side of the cylinder body 6 to seal the transmission assembly, so as to prevent dust accumulation from affecting the transmission of the reduction motor 1.

[0027] Preferably, in the present embodiment 1, a filling port is provided at the end of the oil storage tank 63 to facilitate the staff to fill the solid grease into the oil storage tank 63.

[0028] See also Figure 2 Preferably, in the present embodiment 1, a bearing 411 is provided on the outer periphery of the coupling shaft 41 near the friction ball 42 to ensure that both ends of the coupling shaft 41 remain horizontal when the coupling shaft 41 rotates, thereby avoiding the coupling shaft 41 from shaking due to instability of both ends.

[0029] It should be noted that there are multiple options for the transmission components in this embodiment 1, such as pulley and belt transmission, synchronous wheel and synchronous belt transmission, sprocket and chain transmission, and technical personnel in this field can select a suitable transmission component according to actual conditions.

[0030] See also Figure 3, considering that the selection of different transmission components will lead to different later maintenance conditions, for example, belt transmission and synchronous belt transmission do not require lubrication, while chain transmission requires lubrication, the utility model proposes an embodiment 2 based on embodiment 1, and this embodiment 2 is used for chain transmission; in this embodiment 2, the transmission component includes sprocket one, sprocket two 8 and chain 9; sprocket one is installed on the output shaft of the reduction motor 1, and a connecting rod 31 extends from the side of the transmission wheel 1 3 away from the ball screw 2, and the sprocket two 8 is installed at the end of the connecting rod 31, and the chain 9 transmission connects the sprocket one and the sprocket two 8; the end of the transmission wheel 2 4 away from the connecting shaft 1 41 is connected to the connecting shaft 2 43, and the connecting shaft 2 43 extends to the top of the sprocket 2 8 and is connected to the friction ball 2 44, and the outside of the protective shell 7 corresponds to the friction ball 2 An oil storage tank 2 71 is installed at the position of 44, and solid grease is filled in the oil storage tank 2 71. The oil storage tank 2 71 is connected to the interior of the protective shell 7; thereby, when the reduction motor 1 drives the ball screw 2 to rotate through the sprocket 1, the sprocket 2 8 and the chain 9, the transmission wheel 1 3 rotates synchronously with the ball screw 2, and at the same time, the rotating wheel 1 drives the transmission wheel 2 4 to rotate through the transmission member 5. When the transmission wheel 2 4 rotates, it also drives the connecting shaft 2 43 and the friction ball 2 44 to rotate, so that the friction ball 2 44 rubs with the solid grease; and the friction ball 2 44 generates heat to melt the grease after rubbing with the solid grease, and the grease is sprinkled on the sprocket 2 8 and the chain 9 after melting, thereby automatically lubricating the sprocket 1, the sprocket 2 8 and the chain 9, without the need for manual lubrication by the staff, reducing the number of maintenance times.

[0031] Preferably, in the present embodiment 2, a filling port is provided at the end of the second oil storage tank 71 to facilitate the staff to fill the solid grease into the second oil storage tank 71.

[0032] The working process of the utility model is as follows: after the reduction motor 1 is turned on, the reduction motor 1 drives the ball screw 2 to rotate through the transmission component, the transmission wheel 3 rotates synchronously with the ball screw 2, the rotating wheel 1 drives the transmission wheel 2 4 to rotate through the transmission member 5, and the transmission wheel 2 4 rotates while driving the connecting shaft 1 41 and the friction ball 1 42 to rotate, the friction ball 1 42 rubs with the solid grease, and the solid grease heats up and melts after being rubbed and drips onto the ball screw 2 to complete the lubrication.

[0033] In summary, the utility model provides a cylinder lubrication mechanism, which drives friction ball one to rotate and rub against solid grease through a reduction motor, so that the solid grease is heated and melted after friction, and the melted grease drips onto the ball screw along the inner wall of the lubrication channel, thereby achieving the purpose of automatically lubricating the ball screw inside the cylinder, without the need for manual oil filling and equipment shutdown; and as the speed of the reduction motor changes, the rotation speed of friction ball one will also change accordingly, and the amount of grease melted will also change accordingly, so that the lubrication amount is consistent with the speed of the reduction motor; the reduction motor drives friction ball two to rotate and rub against the solid grease, so that the solid grease is heated and melted after friction, and the melted grease is thrown onto sprocket two and the chain, thereby automatically lubricating sprocket one, sprocket two and the chain, without the need for manual lubrication by staff, thereby reducing the number of maintenance times; by arranging filling ports at the ends of oil storage bin one and oil storage bin two, it is convenient for staff to fill solid grease into oil storage bin one and oil storage bin two.

[0034] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A cylinder lubrication mechanism, comprising a cylinder, a reduction motor, a transmission assembly and a ball screw, characterized in that: A transmission wheel 1 is installed at the end of the ball screw, a transmission wheel 2 is arranged above the transmission wheel 1, and a transmission member for connecting the two is arranged between the transmission wheel 1 and the transmission wheel 2; the transmission wheel 2 is rotatably connected to the cylinder body, and one end of the transmission wheel 2 is connected to a connecting shaft 1, a closed hole with an inner diameter larger than the diameter of the connecting shaft 1 is horizontally arranged inside the cylinder body, and a friction ball 1 is connected to the connecting shaft 1 after extending to the inner bottom of the closed hole, a lubrication channel is vertically arranged in the cylinder body corresponding to the position of the friction ball 1, the lubrication channel is located directly above the ball screw, and an oil storage tank 1 is installed outside the cylinder body at the lubrication channel.

2. The cylinder lubrication mechanism according to claim 1, characterized in that: A protective shell that seals the transmission component is buckled on one side of the cylinder body.

3. The cylinder lubrication mechanism according to claim 2, characterized in that: The transmission assembly includes sprocket one, sprocket two and a chain; sprocket one is installed on the output shaft of the reduction motor, a connecting rod extends from the side of the transmission wheel one away from the ball screw, sprocket two is installed on the end of the connecting rod, and the chain transmission connects sprocket one and sprocket two; the end of the transmission wheel two away from the connecting shaft one is connected to the connecting shaft two, and the connecting shaft two is extended to the top of the sprocket two and then connected to the friction ball two, and an oil storage tank two is installed on the outside of the protective shell at a position corresponding to the friction ball two, and the oil storage tank two is connected to the inside of the protective shell.

4. The cylinder lubrication mechanism according to claim 3, characterized in that: A filling port is provided at the end of the second oil storage tank.

5. The cylinder lubrication mechanism according to claim 1, characterized in that: A filling port is provided at the end of the first oil storage tank.

6. The cylinder lubrication mechanism according to claim 1, characterized in that: A bearing is sleeved on the outer periphery of the connecting shaft 1 near the friction ball 1.

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