Rotary turning turntable

Abstract

The utility model relates to the technical field of transportation, in particular to a rotary turning turntable which comprises a turntable body, and the turntable body is provided with a track in a fixed structure mode; an internal tooth type pivotal bearing is arranged on the lower end face of the turntable body in a fixed structure mode, a bottom plate is arranged on the lower end face of the internal tooth type pivotal bearing in a fixed structure mode, a gear motor is arranged on the bottom plate in a fixed structure mode, a gear is arranged on an output shaft of the gear motor in a fixed structure mode, and the gear is meshed with the internal tooth type pivotal bearing; a limiting sleeve is arranged outside the inner tooth type slewing bearing in a sleeved mode, at least three sleeves are evenly arranged on the peripheral wall of the limiting sleeve at intervals in the radial direction, the number of the sleeves in the embodiment is three, the sleeves and the limiting sleeve are connected in a fixed structure mode, screw rods are arranged in the sleeves in a sleeved mode, adjusting nuts are arranged on the screw rods in a thread meshing mode, and the adjusting nuts are arranged outside the sleeves. By arranging the sleeve, the screw and the adjusting nut, the periphery of the limiting sleeve and the foundation pit are supported and fixed, the structure is simple, and the installation efficiency is greatly improved.

Description

Technical field:

[0001] The present application relates to the field of transportation technology, and in particular to a rotating direction-changing turntable. Background technology:

[0002] A turntable is a disc-shaped device that allows locomotives or other vehicles running on tracks to change direction. The vehicle is driven onto the disc and the disc is turned by machine or manpower to turn the vehicle in the desired direction.

[0003] Chinese invention patent application with application number 202311786869.9 - a bogie turntable, located in a foundation pit in a maintenance workshop, on which a bogie to be repaired is placed, and a first track for the bogie to be repaired to be transferred in is provided in the maintenance workshop; the bogie turntable comprises a turntable body, a slewing assembly, a locking assembly and a parking assembly, and a second track is provided on the top surface of the turntable body; the slewing assembly is connected between the turntable body and the foundation pit, the slewing assembly is connected to the turntable body, and is used to provide rotational power to the turntable body; the parking assembly The part is connected between the turntable body and the foundation pit, the parking component has a limit end, and the limit end protrudes from the top surface of the turntable body; the locking component is located between the turntable body and the foundation pit; when the turntable body rotates until the second track and the first track are in a track-aligned state, the turntable body stops rotating, and the parking component is configured to drive the limit end to retract from the top surface of the turntable body to the bottom surface of the turntable body, and the locking component is clamped in the turntable body to form a locked state of the turntable body, and the bogie is rotated into the first track.

[0004] The connection method between the parking assembly and the foundation pit in this patent application requires the use of expansion bolts or welding for fixation. The expansion bolt connection and fixation requires the use of an impact drill to drill holes in the foundation pit, which is time-consuming and laborious; welding fixation requires pre-embedded connectors in the foundation pit, which is difficult to achieve for a completed factory; in summary, the existing rotating direction-changing turntable is difficult to install and has low efficiency. Utility model content:

[0005] In order to solve the above technical problems, the utility model provides a rotating direction-changing turntable, which solves the technical problems that the rotating direction-changing turntable is difficult to install and has low efficiency. In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Rotating direction-changing turntable, including:

[0007] A turntable body, wherein the turntable body is provided with a track in a fixed structure manner;

[0008] An internal gear type slewing bearing, which is connected to the lower end surface of the turntable body in a fixed structure;

[0009] A bottom plate, the bottom plate is arranged on the lower end surface of the internal gear type slewing bearing in a fixed structure manner;

[0010] A reduction motor, the reduction motor is connected to the base plate in a fixed structure;

[0011] Gear, the gear is connected to the output shaft of the reduction motor in a fixed structure, and the gear is meshed with the internal gear type slewing bearing;

[0012] A limiting sleeve, which is arranged outside the internal gear type slewing bearing;

[0013] Sleeves, at least three sleeves are evenly spaced radially on the outer peripheral wall of the limiting sleeve, and the sleeves are connected to the limiting sleeve in a fixed structure;

[0014] A screw, one end of which is sleeved in a sleeve;

[0015] The adjusting nut is arranged outside the sleeve and is connected with the screw rod through thread engagement.

[0016] Furthermore, the turntable body includes a table top, the lower end surface of the table top is connected to a criss-cross arranged support plate by bolts, the lower end surface of the support plate is provided with a connecting plate in a fixed structure manner, and the connecting plate is connected to the internal gear type slewing bearing by bolts.

[0017] Furthermore, the upper end surface of the table is higher than the upper end surface of the track.

[0018] Furthermore, a flange is provided on the outer side of the bottom of the limiting sleeve in a fixed structure manner, and the flange is connected to the bottom plate by bolts.

[0019] Furthermore, a reinforcing plate is arranged between the sleeve and the limiting sleeve in a fixed structure manner.

[0020] Furthermore, a backing plate is fixedly provided at one end of the screw away from the sleeve;

[0021] The screw rod on the outer side of the adjusting nut is provided with a locking nut through thread engagement.

[0022] Furthermore, the number of the sleeves is four.

[0023] The beneficial effects of the utility model are as follows: the limiting sleeve and the foundation pit are supported and fixed around by arranging the sleeve, the screw rod and the adjusting nut, the structure is simple, and the installation efficiency is greatly improved.

[0024] By setting the adjustment nut and the thread of the screw rod to cooperate, the extension amount of the screw rod in the sleeve can be adjusted to meet the needs of different foundation pit diameters, and there is no need to use a sleeve with an internal thread, which reduces the cost;

[0025] By setting a locking nut, the adjusting nut can be prevented from loosening during long-term use, thereby improving the stability of the structure.

[0026] The limiting sleeve is connected to the bottom plate through a flange, so that part of the extrusion force on the limiting sleeve is transmitted to the bottom plate, thereby reducing the pressure of the internal gear type slewing bearing, preventing its deformation and increasing its service life. Description of the drawings:

[0027] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0028] Figure 2 The utility model is a schematic diagram of the cross-sectional structure of a rotating direction-changing turntable.

[0029] In the figure:

[0030] 1. Track, 2. Turntable body, 21. Table, 22. Support plate, 23. Connecting plate, 3. Internal gear type slewing bearing, 4. Bottom plate, 5. Reducer motor, 6. Limit sleeve, 7. Sleeve, 8. Flange, 9. Pad, 10. Screw, 11. Adjusting nut, 12. Locking nut. Specific implementation method:

[0031] In order to make the purpose, technical scheme and advantages of the implementation of the utility model clearer, the utility model will now be further described in detail with reference to the accompanying drawings and the following examples so that the public can better understand the implementation method of the utility model. The specific implementation scheme of the utility model is as follows:

[0032] The rotary direction-changing turntable comprises a turntable body 2, wherein the turntable body 2 is provided with a track 1 in a fixed structural manner; an inner-toothed slewing bearing 3 is provided on the lower end surface of the turntable body 2 in a fixed structural manner, a bottom plate 4 is provided on the lower end surface of the inner-toothed slewing bearing 3 in a fixed structural manner, a reduction motor 5 is provided on the bottom plate 4 in a fixed structural manner, and a gear is provided on the output shaft of the reduction motor 5 in a fixed structural manner, and the gear is meshed with the inner-toothed slewing bearing 3; a limiting sleeve 6 is sleeved on the outer side of the inner-toothed slewing bearing 3, at least three sleeves 7 are uniformly arranged at intervals along the radial direction on the outer peripheral wall of the limiting sleeve 6, and in this embodiment, there are four sleeves 7, and the four sleeves 7 are connected to the limiting sleeve 6 in a fixed structural manner, a screw rod 10 is sleeved inside the sleeve 7, and an adjusting nut 11 is provided on the screw rod 10 through a threaded meshing manner, and the adjusting nut 11 is arranged on the outside of the sleeve 7, and the limiting sleeve 6 is supported and fixed to the foundation pit on all sides by arranging the sleeve 7, the screw rod 10 and the adjusting nut 11, and the structure is simple, which greatly improves the installation efficiency and achieves the purpose of rapid installation.

[0033] Specifically, the turntable body 2 includes a table top 21, the lower end surface of the table top 21 is connected to a criss-cross arranged support plate 22 by bolts, the lower end surface of the support plate 22 is provided with a connecting plate 23 in a fixed structure manner, the connecting plate 23 is connected to the internal gear type slewing bearing 3 by bolts, the upper end surface of the table top 21 is higher than the upper end surface of the track 1, and the track 1 is hidden in the turntable body 2 to avoid interference with ground motion equipment.

[0034] It should be noted that a flange 8 is arranged on the outer side of the bottom of the limit sleeve 6 in a fixed structure manner, and the flange 8 is connected to the base plate 4 by bolts, so as to transfer part of the extrusion force exerted on the limit sleeve 6 to the base plate 4, reduce the pressure on the internal gear type slewing bearing 3, prevent its deformation, and increase its service life.

[0035] It should be explained that a reinforcing plate is provided between the sleeve 7 and the limiting sleeve 6 in a fixed structure to improve the structural stability.

[0036] A pad 9 is fixedly provided at one end of the screw rod 10 away from the sleeve 7 to increase the contact area with the foundation pit; a locking nut 12 is provided on the screw rod 10 outside the adjusting nut 11 through threaded engagement to prevent the adjusting nut 11 from loosening during long-term use and improve the stability of the structure.

[0037] The working principle and working process of the utility model are as follows:

[0038] First, the base plate 4 with the reduction motor 5 installed is placed in the foundation pit, the flange 8 is connected to the base plate by bolts, and then the limiting sleeve 6 is fixed.

[0039] Then insert one end of the screw 10 with the adjusting nut 11 and the locking nut 12 into the sleeve 7, fit one end of the adjusting nut 11 against the end face of the sleeve 7, rotate the adjusting nut 11 to make the screw 10 extend out of the sleeve 7 until the pad 9 hits the side wall of the foundation pit. Refer to the above method and perform the above operations on the remaining three screws. After completing the supporting and fixing work, rotate the locking nut 12 to make it hit one side of the adjusting nut 11.

[0040] The lower end surface of the internal gear slewing bearing 3 is connected to the bottom plate 4 by bolts, the internal gear slewing bearing 3 is installed in the limiting sleeve 6, and the gear is installed on the output shaft of the reduction motor 5 to mesh the gear with the internal gear slewing bearing 3.

[0041] Then, the connecting plate 23 is connected to the upper end surface of the internal gear type slewing bearing 3 by bolts, and then the turntable body 2 is installed above the internal gear type slewing bearing 3 to complete the installation.

[0042] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Although the present invention has been described according to a limited number of embodiments, those skilled in the art, with the benefit of the above description, should understand that other embodiments can be conceived within the scope of the present invention described thereby.

Claims

1. Rotating direction-changing turntable, characterized in that: include: A turntable body (2), wherein the turntable body (2) is provided with a track (1) in a fixed structure manner; An internal gear type slewing bearing (3), the internal gear type slewing bearing (3) is connected to the lower end surface of the turntable body (2) in a fixed structure manner; A bottom plate (4), the bottom plate (4) being arranged on the lower end surface of the internal gear type slewing bearing (3) in a fixed structure manner; A reduction motor (5), the reduction motor (5) is connected to the base plate (4) in a fixed structure manner; A gear, the gear is connected to the output shaft of the reduction motor (5) in a fixed structure, and the gear is meshed with the internal gear type slewing bearing (3); A limiting sleeve (6), the limiting sleeve (6) is sleeved on the outside of the internal gear type slewing bearing (3); Sleeves (7), at least three sleeves (7) are evenly spaced along the radial direction and arranged on the outer peripheral wall of the limiting sleeve (6), and the sleeves (7) and the limiting sleeve (6) are connected in a fixed structure manner; A screw rod (10), one end of which is sleeved in the sleeve (7); The adjusting nut (11) is arranged outside the sleeve (7) and is connected to the screw rod (10) by means of threaded engagement.

2. The rotating direction-changing turntable according to claim 1, characterized in that: The turntable body (2) comprises a table top (21), the lower end surface of the table top (21) is connected to a support plate (22) arranged in a crisscross pattern by bolts, the lower end surface of the support plate (22) is provided with a connecting plate (23) in a fixed structure manner, and the connecting plate (23) is connected to an internal gear type slewing bearing (3) by bolts.

3. The rotating direction-changing turntable according to claim 2, characterized in that: The upper end surface of the table top (21) is higher than the upper end surface of the track (1).

4. The rotating direction-changing turntable according to claim 1, characterized in that: A flange (8) is arranged on the outer side of the bottom of the limiting sleeve (6) in a fixed structure manner, and the flange (8) is connected to the bottom plate (4) by bolts.

5. The rotating direction-changing turntable according to claim 1, characterized in that: A reinforcing plate is arranged between the sleeve (7) and the limiting sleeve (6) in a fixed structural manner.

6. The rotating direction-changing turntable according to claim 1, characterized in that: A backing plate (9) is fixedly provided at one end of the screw rod (10) away from the sleeve (7); The screw rod (10) outside the adjusting nut (11) is provided with a locking nut (12) through threaded engagement.

7. The rotating direction-changing turntable according to claim 1, characterized in that: The number of sleeves (7) is four.

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