Split type nut push rod structure of electric cylinder

Abstract

The utility model discloses an electric cylinder split type nut push rod structure which comprises an equipment body, the equipment body is mainly used for providing power, a guide cylinder is fixed to the left end of the equipment body, a push rod is coaxially fixed to the left end of the equipment body, and an oil supplementing assembly is installed at the top of the guide cylinder. The oil supplementing assembly is mainly used for supplementing oil to the push rod in the guide cylinder and preventing the push rod from being damaged due to oil shortage, the annular shell is fixed in the guide cylinder and arranged on the outer wall of the push rod in a sleeving mode, the lubricating assembly is installed in the annular shell, and the lubricating assembly is mainly used for adding lubricating oil to the surface of the push rod. The lubricating assembly comprises a plurality of sets of rectangular shells fixed to the inner wall of the annular shell at equal intervals, a plurality of sets of rolling oil supplementing blocks are installed in the rectangular shells, oil can be automatically supplemented to the push rod in the guide portion, and work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of split-type nut push rod technology, specifically a split-type nut push rod structure for electric cylinders. Background Technology

[0002] A split-type nut push rod is a device with a specific structure and function in the field of mechanical transmission and control. It is composed of independent components such as a nut, a screw (or lead screw), and a push rod. These components cooperate with each other through a specific connection method to form a complete transmission mechanism. Unlike an integral push rod, the components of a split-type nut push rod can be disassembled. This design makes it more convenient and faster to install, maintain, and replace components, and can reduce equipment downtime and maintenance costs.

[0003] In existing split-type nut push rods, the guide part of the push rod needs to be lubricated. The existing method is to manually apply lubricating oil, which is traditional and time-consuming, and also affects work efficiency. Therefore, we propose an electric cylinder split-type nut push rod structure. Utility Model Content

[0004] The purpose of this utility model is to provide a split-type nut push rod structure for electric cylinders to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a split-type nut push rod structure for an electric cylinder, comprising,

[0006] The main body of the equipment provides power. A guide cylinder is fixed to the left end of the main body, and a push rod is coaxially fixed to the left end of the main body. An oil replenishment component is installed on the top of the guide cylinder. The main function of the oil replenishment component is to replenish oil to the push rod inside the guide cylinder to prevent damage to the push rod due to lack of oil. An annular shell is fixed inside the guide cylinder and fits onto the outer wall of the push rod. A lubrication component is installed inside the annular shell. The main function of the lubrication component is to add lubricating oil to the surface of the push rod. The lubrication component includes several sets of rectangular shells equidistantly fixed to the inner wall of the annular shell. Several sets of rolling oil replenishment blocks are installed inside the rectangular shells.

[0007] Furthermore, the oil replenishment component includes a rectangular fixing block fixed to the top of the guide cylinder. The rectangular fixing block has a hollow interior. An oil chamber is provided on the left side of the inner wall of the rectangular fixing block. A stop block is provided in the center of the interior of the rectangular fixing block to separate the oil chamber. A sleeve is fixed to the right side of the stop block. A piston rod is slidably connected to the right side of the sleeve. A telescopic rod is fixed to the left side of the main body of the equipment near the guide cylinder. The output end of the telescopic rod is fixedly connected to the piston rod.

[0008] Furthermore, the inner wall of the rectangular fixing block is provided with oil holes.

[0009] Furthermore, an oil pipe is fixed to the outer wall of the annular shell near the oil hole, and the oil pipe is connected to the oil hole. An oil cavity is provided on the inner wall of the annular shell near the push rod, and the top of the oil cavity is fixedly connected to the bottom of the oil pipe.

[0010] Furthermore, a panel is fixed to the top of the rectangular shell, and several sets of connecting rods are fixed at equal intervals on the top of the panel. A through groove is opened on the top of the rectangular shell, and the inner wall of the through groove is rotatably connected to the rolling oil replenishment block.

[0011] Furthermore, a detector is fixed to the left outer wall of the annular shell, the detector is sleeved on the outer wall of the push rod, and the detector is connected to the telescopic rod through a wire harness.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up the main body of the equipment, the oil replenishment component, the lubrication component, etc., when the main body of the equipment is started, when the detector detects that the surface lubricating oil of the push rod in the guide part is low, the telescopic rod will be activated, causing the piston rod to move back and forth in the sleeve. When the piston rod is pulled outward, the lubricating oil in the oil chamber will be drawn to the oil hole. Then, when the piston rod moves inward, the lubricating oil will be transported to the oil chamber and transmitted to the rolling oil replenishment block through the connecting rod. When the push rod moves, the lubricating oil will be evenly coated on the surface of the push rod. Through the above design, the push rod in the guide part can be automatically replenished with oil, thus improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the oil replenishment component structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the first partial structure of the present utility model;

[0016] Figure 4 This is a schematic diagram of the lubrication component structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the second partial structure of the present invention.

[0018] In the diagram: 1. Main body of the equipment; 2. Oil replenishment assembly; 3. Rectangular fixing block; 4. Oil chamber; 5. Oil hole; 6. Sleeve; 7. Piston rod; 8. Telescopic rod; 9. Guide cylinder; 10. Oil pipe; 11. Push rod; 12. Detector; 13. Annular outer shell; 14. Lubrication assembly; 15. Oil cavity; 16. Through groove; 17. Rectangular outer shell; 18. Connecting rod; 19. Panel; 20. Rolling oil replenishment block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5 A split-type nut push rod structure for an electric cylinder, comprising the main body of the device 1;

[0021] The main body of the equipment 1 includes an electric cylinder, a ball screw nut, a push rod, a positioning key, and connecting parts. The specific working principle of the main body of the equipment 1 is that the motor drives the ball screw to rotate after reduction transmission. The ball screw nut rotates under the action of the ball screw. Since the ball screw nut and the push rod are assembled together in the split nut push rod through connecting threads and positioning stops, the rotational motion of the ball screw nut is converted into the linear motion of the push rod through the threaded connection, thereby outputting thrust and pull force to realize the linear reciprocating motion function of the equipment. However, the above operation is existing technology and will not be described in detail here. In the following text, the main body of the equipment 1 will be used as a substitute.

[0022] In this embodiment, the oil replenishment component 2 includes a rectangular fixing block 3 fixed to the top of the guide cylinder 9. The rectangular fixing block 3 has a hollow interior. An oil chamber 4 is provided on the left side of the inner wall of the rectangular fixing block 3. A stop block is provided in the center of the interior of the rectangular fixing block 3 to separate the chambers. A sleeve 6 is fixed to the right side of the stop block. A piston rod 7 is slidably connected to the right side of the sleeve 6. A telescopic rod 8 is fixed to the left side of the main body 1 near the guide cylinder 9. The output end of the telescopic rod 8 is fixedly connected to the piston rod 7. An oil hole 5 is provided on the inner wall of the rectangular fixing block 3. An oil pipe is fixed to the outer wall of the annular outer shell 13 near the oil hole 5. 10. The oil pipe 10 is connected to the oil hole 5. The inner wall of the annular shell 13 is provided with an oil cavity 15 near the push rod 11. The top of the oil cavity 15 is fixedly connected to the bottom of the oil pipe 10. The top of the rectangular shell 17 is fixed with a panel 19. Several sets of connecting rods 18 are fixed at equal intervals on the top of the panel 19. The top of the rectangular shell 17 is provided with a through groove 16. The inner wall of the through groove 16 is rotatably connected to the rolling oil replenishing block 20. The left outer wall of the annular shell 13 is fixed with a detector 12. The detector 12 is sleeved on the outer wall of the push rod 11. The detector 12 is connected to the telescopic rod 8 through a wire harness.

[0023] Specifically, after the main body 1 of the equipment is installed and put into operation, the detector 12 located on the outer wall of the push rod 11 will monitor the lubrication of the guide part of the push rod 11 in real time. When the surface of the push rod 11 comes out from the guide part, the detector 12 detects that the surface of the push rod 11 is evenly covered with lubricating oil. This indicates that the surface of the push rod 11 is normal. At this time, the oil replenishment component 2 and the lubrication component 14 will not work, and the main body 1 of the equipment will work normally.

[0024] When detector 12 detects that the surface of push rod 11 is dry or lacks lubricating oil, detector 12 will transmit a signal to telescopic rod 8. Telescopic rod 8 will then activate, causing piston rod 7 to reciprocate within sleeve 6. Note that the movement of piston rod 7 within sleeve 6 is equivalent to the movement of a vacuum piston. It should also be noted that in the oil pipe 10 connected to the bottom of oil hole 5, one-way rotating stops are provided at both the top and bottom of oil pipe 10. The main purpose of these stops is to prevent lubricating oil from flowing out. Specifically, the stop at the top of oil pipe 10 rotates clockwise, and the stop at the bottom rotates counterclockwise. Therefore, as the piston rod 7 moves inside the sleeve 6, lubricating oil will be replenished into the oil chamber 15 in a fixed amount. After entering the oil chamber 15, it will enter the rectangular housing 17 along with the connecting rod 18. Note that several sets of rolling oil replenishing blocks 20 are provided at the bottom of the rectangular housing 17. It should be noted that the rolling oil replenishing blocks 20 are made of a material that can absorb lubricating oil, and can evenly apply lubricating oil to the surface of the push rod 11 while the push rod 11 moves back and forth, so that the guide component is kept lubricated, thereby reducing the friction of the main body 1 during normal operation and extending its service life.

[0025] When the lubricating oil on the surface of the push rod 11 reaches the standard, the detector 12 will issue a stop command. At this time, the telescopic rod 8 will stop moving and the stop block at the top of the oil pipe 10 will close, preventing the oil inside the oil chamber 4 from continuing to be transported along the oil pipe 10. When the oil inside the oil chamber 4 is insufficient, it can be replenished to achieve the effect of automatic lubrication and improve work efficiency.

[0026] Working principle: After the main body 1 of the equipment is installed and put into operation, the detector 12 located on the outer wall of the push rod 11 will monitor the lubrication of the guide part of the push rod 11 in real time. When the surface of the push rod 11 comes out from the guide part, the detector 12 detects that the surface of the push rod 11 is evenly covered with lubricating oil. This indicates that the surface of the push rod 11 is normal. At this time, the oil replenishment component 2 and the lubrication component 14 will not work, and the main body of the equipment will work normally.

[0027] When detector 12 detects that the surface of push rod 11 is dry or lacks lubricating oil, detector 12 will transmit a signal to telescopic rod 8. Telescopic rod 8 will then activate, causing piston rod 7 to reciprocate within sleeve 6. Note that the movement of piston rod 7 within sleeve 6 is equivalent to the movement of a vacuum piston. It should also be noted that in the oil pipe 10 connected to the bottom of oil hole 5, one-way rotating stops are provided at both the top and bottom of oil pipe 10. The main purpose of these stops is to prevent lubricating oil from flowing out. Specifically, the stop at the top of oil pipe 10 rotates clockwise, and the stop at the bottom rotates counterclockwise. Therefore, as the piston rod 7 moves inside the sleeve 6, lubricating oil is replenished into the oil chamber 15 in a fixed amount. After entering the oil chamber 15, it enters the rectangular housing 17 along with the connecting rod 18. Note that several sets of rolling oil replenishing blocks 20 are provided at the bottom of the rectangular housing 17. It should be noted that the rolling oil replenishing blocks 20 are made of a material that can absorb lubricating oil, and can evenly apply lubricating oil to the surface of the push rod 11 while the push rod 11 moves back and forth, so that the guide component is kept lubricated, thereby reducing the friction of the main body 1 during normal operation and extending its service life.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A split nut push rod structure of an electric cylinder, characterized by: The utility model relates to a device body (1), the main role of device body (1) is to provide power, the left end of device body (1) is fixed with guide cylinder (9), the left end of device body (1) is fixed with push rod (11) coaxially, the top of guide cylinder (9) is installed with oil supplementing assembly (2), the main role of oil supplementing assembly (2) is to push rod (11) inside guide cylinder (9) carries out oil supplementing, prevents push rod (11) from damaging because of lack of oil, the inside fixed with annular shell (13) of guide cylinder (9), the annular shell (13) is set up in the outer wall of push rod (11), be installed with lubricating assembly (14) in annular shell (13), the main role of lubricating assembly (14) is to push rod (11) surface adds lubricating oil, lubricating assembly (14) includes several groups of equidistant fixed in the inner wall of annular shell (13) rectangular shell (17), the inside of rectangular shell (17) is installed with several groups of rolling oil supplementing block (20). The utility model relates to a device body (1), the main role of device body (1) is to provide power, the left end of device body (1) is fixed with guide cylinder (9), the left end of device body (1) is fixed with push rod (11) coaxially, the top of guide cylinder (9) is installed with oil supplementing assembly (2), the main role of oil supplementing assembly (2) is to push rod (11) inside guide cylinder (9) carries out oil supplementing, prevents push rod (11) from damaging because of lack of oil, the inside fixed with annular shell (13) of guide cylinder (9), the annular shell (13) is set up in the outer wall of push rod (11), be installed with lubricating assembly (14) in annular shell (13), the main role of lubricating assembly (14) is to push rod (11) surface adds lubricating oil, lubricating assembly (14) includes several groups of equidistant fixed in the inner wall of annular shell (13) rectangular shell (17), the inside of rectangular shell (17) is installed with several groups of rolling oil supplementing block (20).

2. The split nut push rod structure of an electric cylinder according to claim 1, characterized in that: The inner wall of rectangular fixed block (3) is provided with oil hole (5).

3. The split nut push rod structure of an electric cylinder according to claim 2, characterized in that: The outer wall of annular shell (13) is fixed with oil pipe (10) near oil hole (5), the oil pipe (10) is connected with oil hole (5), the inner wall of annular shell (13) is provided with oil cavity (15) near push rod (11), the top of oil cavity (15) is fixedly connected with the bottom of oil pipe (10).

4. The split nut push rod structure of an electric cylinder according to claim 1, characterized in that: The top of rectangular shell (17) is fixed with panel (19), a plurality of connecting rods (18) are fixed on the top of panel (19) at equal intervals, a through groove (16) is formed in the top of rectangular shell (17), and the inner wall of through groove (16) is rotatably connected with rolling oil supplementing block (20).

5. The split nut push rod structure of an electric cylinder according to claim 1, characterized in that: The left outer wall of annular shell (13) is fixed with detector (12), the detector (12) is sleeved on the outer wall of push rod (11), and the detector (12) is connected with telescopic rod (8) through a wire harness.

6. The split nut push rod structure of an electric cylinder according to claim 1, characterized by: ​

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