Spiral rotation type lifting column

Abstract

The utility model relates to the technical field of lifting columns, in particular to a spiral rotating type lifting column which comprises a column body, a movable column is installed in the column body in a sliding mode, a plurality of sets of evenly-distributed movable idler wheels are fixedly installed on the periphery of the movable column, and a plurality of evenly-distributed guide grooves are formed in the inner side wall of the column body. And a fixed plate is fixedly installed on the lower portion in the column body, a threaded rod is rotationally installed in the middle in the fixed plate, the bottom of the movable column is in threaded connection to the periphery of the threaded rod, and a driving mechanism is arranged on the lower portion of the column body. The device has the beneficial effects that along with the movement of the movable column in the column body, the bulge is in continuous contact with the abutting plate, then the elastic extrusion plate injects lubricating oil in the oil box into the guide groove along the oil guide pipe, the smoothness between the movable column and the column body can be improved by matching with the movable wheel on the movable column, and the service life is prolonged; meanwhile, it is guaranteed that the column body and the movable column are overlapped sufficiently, stably and reliably in the operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting columns, and particularly relates to a spiral rotating type lifting column. Background Technique

[0002] A lifting column is a lifting device. Due to the variety of lifting columns, in the field of factory automation, spiral lifting columns can be used in multiple links such as automated warehousing, engine handling on assembly lines, and wing handling. Their reliable performance is particularly suitable for industrial applications with high precision and high load. With its unique design, powerful functions, and broad application prospects, the lifting column has become an important part of modern industry and automation equipment.

[0003] In the prior art, a lifting column generally includes a mounting column body and an adjusting movable column. By controlling the position of the adjusting movable column, the purpose of lifting can be achieved. However, since the mounting column body and the adjusting movable column will come into direct contact during the sliding process, scratches will be caused on their surfaces, reducing the service life of the lifting column. Moreover, there is a lack of lubrication during the moving process, affecting the smooth movement of the adjusting movable column. Content of the Utility Model

[0004] The purpose of the utility model is to provide a spiral rotating type lifting column to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a spiral rotating type lifting column, including:

[0006] A column body, in which a movable column is slidably installed. Multiple groups of evenly distributed moving rollers are fixedly installed on the outer periphery of the movable column. Multiple evenly distributed guide grooves are opened on the inner side wall of the column body. A fixed plate is fixedly installed at the lower part inside the column body. A threaded rod is rotatably installed in the middle of the fixed plate. The bottom of the movable column is threadedly connected to the outer periphery of the threaded rod. A driving mechanism is arranged at the lower part of the column body for driving the threaded rod to rotate;

[0007] A lubrication mechanism, the lubrication mechanism includes multiple groups of oil boxes. Each group of oil boxes is fixedly installed inside the side wall of the movable column and each group of oil boxes is arranged in a circumferential array. An elastic extrusion plate is slidably installed in each oil box. A contact plate is fixedly installed on each elastic extrusion plate. Multiple groups of evenly distributed protrusions are arranged on the surface of the inner side wall of the column body. A guide oil pipe is fixedly installed on one side of each oil box close to the moving roller and the guide oil pipes are respectively communicated with the guide grooves on the same side. An oil delivery pipe is fixedly installed on one side of each oil box far from the moving roller, and the outer periphery of the oil delivery pipe penetrates through the column body.

[0008] Preferably, a mounting plate is installed at the bottom end of the column body and multiple evenly distributed mounting holes are opened on the surface of the mounting plate.

[0009] Preferably, a flange is fixedly installed at the top end of the movable column, and the flange is connected to external equipment.

[0010] Preferably, a plurality of uniformly distributed positioning blocks are fixedly installed on the inner side wall of the column body. A plurality of uniformly distributed positioning grooves are formed on the outer periphery of the movable column, and the positioning grooves are adapted to the positioning blocks.

[0011] Preferably, one-way valves are provided on both the oil delivery pipe and the oil guide pipe on the same side close to the oil box.

[0012] Preferably, the driving mechanism includes a motor mounting frame fixedly installed on the lower part of the outer periphery of the column body. A stepping motor is fixedly installed in the middle of the motor mounting frame. A driving gear is fixedly installed at the output end of the stepping motor, and a driven gear is meshed with the outer periphery of the driving gear.

[0013] Preferably, a rotating shaft is rotatably installed on the lower part of the outer periphery of the column body. One end of the rotating shaft close to the stepping motor is fixedly installed on the driven gear. A driving bevel gear is fixedly installed at the other end of the rotating shaft away from the driven gear. A driven bevel gear is meshed with the outer periphery of the lower part of the driving bevel gear, and the driven bevel gear is fixedly installed at the end of the threaded rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] In the spiral rotating type lifting column proposed by the present utility model, a lubricating mechanism is provided. As the movable column moves in the column body, the protrusions will continuously contact the abutting plate. Furthermore, the elastic pressing plate will inject the lubricating oil in the oil box along the oil guide pipe into the guide groove. Cooperating with the moving wheels on the movable column, it can increase the smoothness between the movable column and the column body, extend the service life, and at the same time ensure that the overlap degree between the column body and the movable column is sufficient and stable and reliable during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view three-dimensional structure schematic diagram of the present utility model;

[0017] Figure 2 is the partial structure schematic diagram of the movable column of the present utility model;

[0018] Figure 3 is the partial structure schematic diagram of the column body of the present utility model;

[0019] Figure 4 is the partial structure schematic diagram of the lubricating mechanism of the present utility model.

[0020] In the figure: 1, mounting plate; 2, mounting hole; 3, cylinder; 4, movable column; 5, moving roller; 6, flange; 7, positioning groove; 8, stepper motor; 9, driven gear; 10, rotating shaft; 11, driving bevel gear; 12, driven bevel gear; 13, threaded rod; 14, positioning block; 15, guiding groove; 16, fixing plate; 17, driving gear; 18, motor mounting bracket; 19, lubricating mechanism; 191, oil box; 192, oil delivery pipe; 193, protrusion; 194, abutting plate; 195, elastic pressing plate; 196, oil guiding pipe. Detailed implementation manners

[0021] In order to clearly and completely describe the purpose, technical solutions of the present utility model and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0022] Please refer to Figures 1 to 4, the present utility model provides a technical solution: a spiral rotating type lifting column, comprising: a column body 3, an active column 4 is slidably installed inside the column body 3, a plurality of groups of uniformly distributed moving rollers 5 are fixedly installed on the outer periphery of the active column 4, a plurality of uniformly distributed guide grooves 15 are formed on the inner side wall of the column body 3, a fixed plate 16 is fixedly installed at the lower part inside the column body 3, a threaded rod 13 is rotatably installed in the middle of the fixed plate 16, the bottom of the active column 4 is threadedly connected to the outer periphery of the threaded rod 13, a driving mechanism is provided at the lower part of the column body 3 for driving the threaded rod 13 to rotate; a lubrication mechanism 19, the lubrication mechanism 19 includes a plurality of groups of oil boxes 191, each group of oil boxes 191 is fixedly installed inside the side wall of the active column 4 and each group of oil boxes 191 is arranged in a circumferential array, an elastic pressing plate 195 is slidably installed in each oil box 191, a contact plate 194 is fixedly installed on each elastic pressing plate 195, a plurality of groups of uniformly distributed protrusions 193 are provided on the surface of the inner side wall of the column body 3, a guide oil pipe 196 is fixedly installed on one side of each oil box 191 close to the moving roller 5 and the guide oil pipes 196 are respectively communicated with the guide grooves 15 on the same side, an oil delivery pipe 192 is fixedly installed on one side of each oil box 191 away from the moving roller 5, the outer periphery of the oil delivery pipe 192 penetrates through the column body 3, when the active column 4 moves inside the column body 3, the protrusions 193 will continuously contact the contact plate 194, and then the elastic pressing plate 195 will move inside the oil box 191. As the elastic pressing plate 195 moves inside the oil box 191, the lubricating oil in the oil box 191 can be guided along the guide oil pipe 196 into the guide groove 15, so as to assist the moving wheel to move in the guide groove 15, reduce the friction between the column body 3 and the active column 4, and ensure the smooth movement between the column body 3 and the active column 4. And the oil delivery pipe 192 is convenient for the staff to supplement the lubricating oil in the oil box 191. At the same time, since the protrusions 193 are intermittently distributed inside the column body 3, they can intermittently contact the contact plate 194 when the active column 4 moves, so as to spray the lubricating oil onto the guide groove 15. Due to gravity, the lubricating oil will move along the guide groove 15, thus facilitating the movement of the moving wheel in the guide groove 15.

[0023] An installation plate 1 is installed at the bottom end of the column body 3 and a plurality of uniformly distributed installation holes 2 are formed on the surface of the installation plate 1. A flange plate 6 is fixedly installed at the top end of the active column 4 and the flange plate 6 is connected to an external device. A plurality of uniformly distributed positioning blocks 14 are fixedly installed on the inner side wall of the column body 3. A plurality of uniformly distributed positioning grooves 7 are formed on the outer periphery of the active column 4 and the positioning grooves 7 are all adapted to the positioning blocks 14. By providing the positioning blocks 14 and the positioning grooves 7, the movement between the column body 3 and the active column 4 can be assisted in positioning, effectively increasing the movement stability of the active column 4. One-way valves are provided on one side of the oil delivery pipes 192 and the guide oil pipes 196 on the same side close to the oil boxes 191. By providing the one-way valves, the backflow of the lubricating oil can be avoided, affecting the normal delivery of the lubricating oil.

[0024] The drive mechanism includes a motor mounting bracket 18, which is fixedly installed at the lower part of the outer periphery of the column 3. A stepper motor 8 is fixedly installed in the middle of the motor mounting bracket 18. A driving gear 17 is fixedly installed at the output end of the stepper motor 8. A driven gear 9 is meshed and connected to the outer periphery of the driving gear 17. A rotating shaft 10 is rotatably installed at the lower part of the outer periphery of the column 3. One end of the rotating shaft 10 close to the stepper motor 8 is fixedly installed on the driven gear 9. A driving bevel gear 11 is fixedly installed at the end of the rotating shaft 10 away from the driven gear 9. A driven bevel gear 12 is meshed and connected to the outer periphery of the lower part of the driving bevel gear 11. The driven bevel gear 12 is fixedly installed at the end of the threaded rod 13. By controlling the stepper motor 8, at this time, the stepper motor 8 can drive the driving gear 17 to rotate. Since the driving gear 17 and the driven gear 9 are meshed with each other, the driven gear 9 will drive the rotating shaft 10 to rotate, so that the driving bevel gear 11 will rotate synchronously. With the cooperation of the driven bevel gear 12, the threaded rod 13 rotates. Due to the characteristics of the thread, at this time, the movable column 4 will move in the column 3. And by controlling the forward and reverse rotation of the stepper motor 8, the threaded rod 13 can rotate synchronously, which is convenient for the staff to flexibly control the lifting height of the movable column 4.

[0025] During the actual use process, the staff can install and fix the column 3 by using the mounting holes 2 on the mounting plate 1 in cooperation with the fixing bolts. Then, by using the flange 6, the movable column 4 can be connected to external equipment. At the same time, by controlling the stepper motor 8 and cooperating with the driving gear 17, the driven gear 9, the rotating shaft 10, the driving bevel gear 11 and the driven bevel gear 12, the threaded rod 13 can be rotated. With the cooperation of the thread, the movable column 4 can be lifted and lowered in the column 3. At the same time, the protrusion 193 cooperates with the abutting plate 194 and the elastic pressing plate 195 to inject the lubricating oil in the oil box 191 into the guide groove 15 along the oil guide pipe 196, so that the friction between the moving wheel and the guide groove 15 can be reduced, and the moving smoothness of the movable column 4 can be increased.

[0026] Although the above describes the illustrative specific embodiments of the present application for the convenience of those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all application creations using the concept of the present application are within the scope of protection.

Claims

1. A spiral rotary lifting column, characterized in that: include: A column (3), a movable column (4) is slidably mounted inside the column (3), a plurality of groups of evenly distributed moving rollers (5) are fixedly mounted on the outer periphery of the movable column (4), a plurality of evenly distributed guide grooves (15) are opened on the inner side wall of the column (3), a fixed plate (16) is fixedly mounted on the lower part of the column (3), a threaded rod (13) is rotatably mounted in the middle part of the fixed plate (16), the bottom of the movable column (4) is threadedly connected to the outer periphery of the threaded rod (13), and a driving mechanism is provided at the lower part of the column (3) for driving the threaded rod (13) to rotate; A lubrication mechanism (19), the lubrication mechanism (19) comprising a plurality of groups of oil boxes (191), each group of the oil boxes (191) being fixedly mounted inside the side wall of the movable column (4) and each group of the oil boxes (191) being distributed in a circular array, an elastic extrusion plate (195) being slidably mounted inside the oil boxes (191), an abutment plate (194) being fixedly mounted on the elastic extrusion plate (195), a plurality of groups of evenly distributed protrusions (193) being provided on the inner side wall surface of the column (3), an oil guide pipe (196) being fixedly mounted on the side of each oil box (191) close to the movable roller (5), and the oil guide pipe (196) being respectively connected to the guide groove (15) on the same side, and an oil delivery pipe (192) being fixedly mounted on the side of each oil box (191) away from the movable roller (5), and the outer circumference of the oil delivery pipe (192) passing through the column (3).

2. A spiral rotary lifting column according to claim 1, characterized in that: A mounting plate (1) is installed at the bottom end of the column (3), and a plurality of evenly distributed mounting holes (2) are provided on the surface of the mounting plate (1).

3. The spiral rotary lifting column according to claim 1, characterized in that: A flange (6) is fixedly mounted on the top of the movable column (4), and the flange (6) is connected to external equipment.

4. The spiral rotary lifting column according to claim 1, characterized in that: The inner wall of the column (3) is fixedly mounted with a plurality of evenly distributed positioning blocks (14), and the outer periphery of the movable column (4) is provided with a plurality of evenly distributed positioning grooves (7), and the positioning grooves (7) are adapted to the positioning blocks (14).

5. The spiral rotary lifting column according to claim 1, characterized in that: The oil delivery pipe (192) and the oil guide pipe (196) on the same side are both provided with a one-way valve on the side close to the oil box (191).

6. The spiral rotary lifting column according to claim 1, characterized in that: The driving mechanism comprises a motor mounting frame (18), the motor mounting frame (18) being fixedly mounted on the lower part of the outer periphery of the column (3), a stepping motor (8) being fixedly mounted in the middle part of the motor mounting frame (18), a driving gear (17) being fixedly mounted on the output end of the stepping motor (8), and a driven gear (9) being meshingly connected to the outer periphery of the driving gear (17).

7. The spiral rotary lifting column according to claim 1, characterized in that: A rotating shaft (10) is rotatably mounted on the lower part of the outer periphery of the column (3); one end of the rotating shaft (10) close to the stepping motor (8) is fixedly mounted on the driven gear (9); an active bevel gear (11) is fixedly mounted on the end of the rotating shaft (10) away from the driven gear (9); a driven bevel gear (12) is meshedly connected to the lower outer periphery of the active bevel gear (11); and the driven bevel gear (12) is fixedly mounted on the end of a threaded rod (13).

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