Rotary supporting wheel

Abstract

The utility model provides a rotary supporting wheel. The rotary supporting wheel comprises a driving motor, a worm gear reducer, a rotary arm and a supporting roller, a hollow shaft serving as output is arranged in the worm gear reducer, the worm gear reducer is provided with a rotating shaft penetrating through the worm gear reducer, the rotating shaft is bilaterally symmetrical about the center face of the worm gear reducer, and after an output shaft of the driving motor is decelerated through the worm gear reducer, power is transmitted to the hollow shaft of the worm gear reducer. The rotating shaft is fixedly connected with the hollow shaft to transmit power; rotary arms are arranged at the two ends of the rotary shaft, and the two ends of the rotary arms are connected to the two ends of the central shaft of the supporting roller. The lifting basket has the advantages that the risk caused by the fact that the rotary supporting wheel possibly collides with a wall surface foreign matter protrusion when the lifting basket ascends and descends is avoided through the retraction function.

Description

Technical Field

[0001] The utility model relates to the technical field of construction hanging baskets, in particular to a slewing support wheel. Background Art

[0002] In the field of construction hanging baskets, the main function of the support wheel is to be fixed on the hanging basket. When the equipment on the hanging basket is under construction, the support wheel supports the wall surface to keep the hanging basket stable.

[0003] The current support wheel is fixed on the outside of the hanging basket and cannot retract into the hanging basket. During the up and down movement of the hanging basket, the protruding obstacles on the construction wall surface may interfere with it, affecting the movement of the hanging basket or posing a risk of hitting and damaging the support wheel, and also increasing the instability risk of the high-altitude hanging basket.

[0004] Therefore, there is an urgent need to develop a support wheel that can extend and retract. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a support wheel that can extend and retract.

[0006] To solve the above technical problem, the technical solution adopted by the utility model is: a slewing support wheel, comprising: a driving motor, a worm and worm gear reducer, a slewing arm and a support roller;

[0007] A hollow shaft serving as an output is provided inside the worm and worm gear reducer. A rotating shaft runs through the inside of the worm and worm gear reducer. The rotating shaft is symmetric about the central plane of the worm and worm gear reducer. After the output shaft of the driving motor is decelerated by the worm and worm gear reducer, the power is transmitted to the hollow shaft of the worm and worm gear reducer, and the rotating shaft is fixedly connected to the hollow shaft to transmit the power;

[0008] Slewing arms are provided at both ends of the rotating shaft, and both ends of the slewing arm are connected to both ends of the central shaft of the support roller.

[0009] Further, first and second thin plates are respectively sleeved on the left and right ends of the rotating shaft. Threaded through holes are respectively provided on the first and second thin plates. Threaded through holes are respectively provided on both sides of the rotating shaft close to the worm and worm gear reducer. The first and second thin plates are fastened to the rotating shaft by bolts.

[0010] Further, an installation base plate is provided below the worm and worm gear reducer, and the worm and worm gear reducer is fixed on the installation base plate.

[0011] Further, a first mechanical stopper and a second mechanical stopper are respectively provided at one ends of the first thin sheet and the second thin sheet away from the worm and worm gear reducer. The first mechanical stopper and the second mechanical stopper are circumferentially fixed to the rotary shaft. When the rotary shaft rotates, the first mechanical stopper and the second mechanical stopper abut against the mounting base plate to limit the rotation range of the rotary shaft.

[0012] Further, both the first mechanical stopper and the second mechanical stopper are L-shaped.

[0013] Further, a first limit switch and a second limit switch are respectively arranged on the left and right sides of the worm and worm gear reducer. When the rotary shaft rotates to make the support roller extend, the second thin sheet contacts the trigger roller of the second limit switch to trigger a limit signal. When the rotary shaft rotates in the reverse direction to make the support roller retract, the first thin sheet contacts the trigger roller of the first limit switch to trigger a limit signal.

[0014] Further, a reducer flange is provided on the worm and worm gear reducer, and the drive motor is fixed on the reducer flange.

[0015] Further, bearings are provided at both ends of the central axis of the support roller. The inner ring of the bearing is sleeved and fixed to the central axis of the support roller, and the outer ring of the bearing is fixed to the roller of the support roller.

[0016] Further, a dust cover is sleeved above the worm and worm gear reducer.

[0017] Further, the mounting base plate is provided with a U-shaped clamp, and the mounting base plate is fixed to the hanging basket through the U-shaped clamp.

[0018] The beneficial effects of the present utility model are as follows: Power is provided by the drive motor, and the worm and worm gear reducer decelerates the drive motor to drive the rotary shaft to rotate, driving the swing arm to swing, thereby controlling the extension and retraction of the support roller. This technical solution not only enhances the static stability of the hanging basket relative to the construction wall surface when it is stationary, but also avoids the risk of collision between the rotary support wheel and foreign object protrusions on the wall surface during the lifting and lowering of the hanging basket through the retraction function. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the mechanisms shown in these drawings.

[0020] Figure 1 It is a structural schematic diagram of the rotary support wheel in the embodiment of the present utility model;

[0021] Figure 2 Structural diagram of the rotary power output part of the slewing support wheel according to an embodiment of the present utility model;

[0022] Figure 3 Structural diagram of the slewing and telescoping part according to an embodiment of the present utility model;

[0023] Figure 4 Application scenario diagram of the slewing support wheel according to an embodiment of the present utility model;

[0024] Wherein, 100, slewing support wheel; 110, drive motor; 120, worm and worm gear reducer; 121, rotating shaft; 122, first mechanical limit; 123, second mechanical limit; 124, first thin plate; 125, second thin plate; 126, first limit switch; 127, second limit switch; 128, reducer flange; 129, limit switch mounting plate; 130, slewing arm; 140, support roller; 141, central shaft; 142, roller; 143, bearing; 150, mounting base plate; 151, U-shaped clamp; 160, dust cover; 400, hanging basket. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be noted that the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments may be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of the technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0027] As Figures 1-4 shown, the first embodiment of the present utility model is: a slewing support wheel, comprising: a drive motor 110, a worm and worm gear reducer 120, a slewing arm 130 and a support roller 140;

[0028] The worm and worm gear reducer 120 is internally provided with a hollow shaft as the output. The worm and worm gear reducer 120 is provided with a rotating shaft 121 passing through its interior. The rotating shaft 121 is symmetric about the central plane of the worm and worm gear reducer 120. After the output shaft of the driving motor 110 is decelerated by the worm and worm gear reducer 120, the power is transmitted to the hollow shaft of the worm and worm gear reducer 120. The rotating shaft 121 is fixedly connected to the hollow shaft to transmit power;

[0029] Both ends of the rotating shaft 121 are provided with rotating arms 130. Both ends of the rotating arms 130 are connected to both ends of the central shaft 141 of the support rollers 140.

[0030] In a specific embodiment, the left and right ends of the rotating shaft 121 are respectively sleeved with a first thin sheet 124 and a second thin sheet 125. The first thin sheet 124 and the second thin sheet 125 are respectively provided with threaded through holes. The rotating shaft 121 has threaded through holes on both sides close to the worm and worm gear reducer 120. The first thin sheet 124 and the second thin sheet 125 are fastened to the rotating shaft 121 by bolts.

[0031] In this embodiment, the left and right ends of the rotating shaft 121 are respectively sleeved with a first thin sheet 124 and a second thin sheet 125. The first thin sheet 124 and the second thin sheet 125 are respectively provided with threaded holes. The rotating shaft 121 has threaded holes on both sides close to the worm and worm gear reducer 120. The first thin sheet 124 and the second thin sheet 125 are fastened to the rotating shaft 121 by bolts passing through the above-mentioned threaded holes respectively.

[0032] In a specific embodiment, a mounting base plate 150 is provided below the worm and worm gear reducer 120. The worm and worm gear reducer 120 is fixed on the mounting base plate 150.

[0033] Furthermore, first mechanical limit members 122 and second mechanical limit members 123 are respectively provided at one ends of the first thin sheet 124 and the second thin sheet 125 away from the worm and worm gear reducer 120. The first mechanical limit members 122 and the second mechanical limit members 123 are circumferentially fixed to the rotating shaft 121; the first mechanical limit members 122 and the second mechanical limit members 123 abut against the mounting base plate 150 when the rotating shaft 121 rotates to limit the rotation range of the rotating shaft 121.

[0034] Furthermore, both the first mechanical limit members 122 and the second mechanical limit members 123 are L-shaped.

[0035] In this embodiment, at one end of the first thin plate 124 and the second thin plate 125 away from the worm and worm gear reducer 120, a first mechanical limiting member 122 and a second mechanical limiting member 123 are symmetrically installed respectively. The first mechanical limiting member 122 and the second mechanical limiting member 123 are circumferentially fixed to the rotating shaft 121 through flat keys. Both the first mechanical limiting member 122 and the second mechanical limiting member 123 are L-shaped and have two limiting points; when the rotating shaft 121 rotates to make the supporting roller 140 extend, one end of the first mechanical limiting member 122 and the second mechanical limiting member 123 is in hard contact with the mounting base plate 150 to play a limiting role; when the rotating shaft 121 rotates in the opposite direction to make the supporting wheel retract, the other end of the first mechanical limiting member 122 and the second mechanical limiting member 123 is in hard contact with the mounting base plate 150 to play a limiting role. A retaining ring is arranged on the outer end surface of the first mechanical limiting member 122 and the second mechanical limiting member 123 to prevent them from moving outwards and disengaging.

[0036] In a specific embodiment, a first limit switch 126 and a second limit switch 127 are respectively arranged on the left and right sides of the worm and worm gear reducer 120. When the rotating shaft 121 rotates to make the supporting roller 140 extend, the second thin plate 125 contacts the trigger roller of the second limit switch 127 to trigger a limit signal; when the rotating shaft 121 rotates in the opposite direction to make the supporting roller 140 retract; the first thin plate 124 contacts the trigger roller of the first limit switch 126 to trigger a limit signal.

[0037] In this embodiment, a first limit switch 126 and a second limit switch 127 are arranged on the left and right sides of the worm and worm gear reducer 120. When the rotating shaft 121 rotates to make the supporting roller 140 extend, the second thin plate 125 contacts the trigger roller of the second limit switch 127 to trigger a limit signal; when the rotating shaft 121 rotates in the opposite direction to make the supporting wheel retract; the first thin plate 124 contacts the trigger roller of the first limit switch 126 to trigger a limit signal. The first limit switch 126 and the second limit switch 127 are locked back to back on both sides of the limit switch mounting plate 129, and the limit switch mounting plate 129 is fixed to the reducer flange 128 by screws. The worm and worm gear reducer 120 is mounted to the mounting base plate 150 by bolts at its bottom.

[0038] In a specific embodiment, a reducer flange 128 is provided on the worm and worm gear reducer 120, and the drive motor 110 is fixed to the reducer flange 128.

[0039] In a specific embodiment, bearings 143 are provided at both ends of the central shaft 141 of the supporting roller 140. The inner ring of the bearing 143 is sleeved and fixed to the central shaft 141 of the supporting roller 140, and the outer ring of the bearing 143 is fixed to the roller 142 of the supporting roller 140.

[0040] In this embodiment, the roller 142 is generally made of non-metallic material to achieve the effect of weight reduction. The lower mounting end face of the slewing arm 130 is provided with threaded holes for mounting to the first mechanical limit member 122 and the second mechanical limit member 123.

[0041] In a specific embodiment, a dust cover 160 is sleeved above the worm and worm gear reducer 120.

[0042] In this embodiment, a dust cover 160 is provided to cope with the harsh construction environment.

[0043] In a specific embodiment, the mounting base plate 150 is provided with a U-shaped clip 151, and the mounting base plate 150 is fixed to the hanging basket 400 through the U-shaped clip 151.

[0044] In this embodiment, the slewing support wheel 100 is mounted to the cross beam of the hanging basket 400 through the mounting base plate 150 and the U-shaped clip 151, and is locked with a hand-tightened screw, and the position of the slewing support wheel 100 on the cross beam of the hanging basket 400 can be changed according to different working conditions.

[0045] The beneficial effects of the embodiments of the present utility model are as follows: Power is provided by the drive motor 110, and the worm and worm gear reducer 120 decelerates the drive motor 110 to drive the rotation of the rotary shaft 121, and then drives the slewing of the slewing arm 130, thereby controlling the extension and retraction of the support roller 140; This technical solution not only enhances the static stability of the hanging basket 400 relative to the construction wall surface during construction, but also avoids the risk of collision between the slewing support wheel 100 and the raised foreign objects on the wall surface during the lifting and lowering of the hanging basket 400 through the retraction function.

[0046] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A slewing support wheel, characterized in that, Including: A drive motor, a worm and worm gear reducer, a rotary arm and support rollers; A hollow shaft serving as an output is provided inside the worm and worm gear reducer. The worm and worm gear reducer is provided with a rotary shaft passing through its interior. The rotary shaft is symmetric about the central plane of the worm and worm gear reducer. After the output shaft of the drive motor is decelerated by the worm and worm gear reducer, the power is transmitted to the hollow shaft of the worm and worm gear reducer. The rotary shaft is fixedly connected to the hollow shaft to transmit power; Rotary arms are provided at both ends of the rotary shaft, and both ends of the rotary arms are connected to both ends of the central shaft of the support rollers.

2. The slewing support wheel according to claim 1, wherein: A first thin sheet and a second thin sheet are respectively sleeved on the left and right ends of the rotary shaft. Threaded through holes are respectively provided on the first thin sheet and the second thin sheet. Threaded through holes are respectively provided on both sides of the rotary shaft close to the worm and worm gear reducer. The first thin sheet and the second thin sheet are fastened to the rotary shaft by bolts.

3. The slewing support wheel according to claim 2, characterized in that: An installation base plate is provided below the worm and worm gear reducer, and the worm and worm gear reducer is fixed on the installation base plate.

4. The slewing support wheel according to claim 3, wherein: A first mechanical limit member and a second mechanical limit member are respectively provided at one end of the first thin sheet and the second thin sheet away from the worm and worm gear reducer. The first mechanical limit member and the second mechanical limit member are circumferentially fixed to the rotary shaft; the first mechanical limit member and the second mechanical limit member abut against the installation base plate when the rotary shaft rotates to limit the rotation range of the rotary shaft.

5. The slewing support wheel according to claim 4, characterized in that: Both the first mechanical limit member and the second mechanical limit member are L-shaped.

6. The slewing support wheel according to claim 2, wherein: A first limit switch and a second limit switch are respectively arranged on the left and right sides of the worm and worm gear reducer; when the rotary shaft rotates to make the support rollers extend, the second thin sheet contacts the trigger roller of the second limit switch to trigger a limit signal; when the rotary shaft rotates in the reverse direction to make the support rollers retract, the first thin sheet contacts the trigger roller of the first limit switch to trigger a limit signal.

7. The slewing support wheel according to claim 1, characterized in that: A reducer flange is provided on the worm and worm gear reducer, and the drive motor is fixed on the reducer flange.

8. The slewing support wheel according to claim 1, wherein: Bearings are provided at both ends of the central shaft of the support rollers. The inner rings of the bearings are sleeved and fixed to the central shaft of the support rollers, and the outer rings of the bearings are fixed to the rollers of the support rollers.

9. The slewing support wheel according to claim 1, characterized in that: A dust cover is sleeved above the worm and worm gear reducer.

10. The slewing support wheel according to claim 3, wherein: The installation base plate is provided with a U-shaped clamp, and the installation base plate is fixed on the hanging basket through the U-shaped clamp.

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