Lead screw elevator flange convenient to level

Abstract

The utility model discloses a lead screw elevator flange convenient to level, which comprises an elevator main body, a transition head arranged at the top end of a ball screw of the elevator main body, a lead screw flange arranged on the outer side of the transition head, a leveling nut arranged outside the lead screw flange, and a positioning piece arranged between the leveling nut and the lead screw flange or the transition head. By means of the structure, when a plurality of lifting machines are installed and used in a linkage mode, all the lifting machine lead screw flanges only need to be adjusted to be approximately the same in height, the lead screw flanges are aligned with installation hole positions of an upper machine frame, and then the lifting machine lead screw flanges can be installed and used in a linkage mode. And then the leveling nuts are rotated in sequence and are measured by a height gauge, so that the heights of the upper planes of the leveling nuts relative to the mounting surface of the box body are consistent.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and in particular relates to a screw elevator flange which is convenient for leveling. Background Art

[0002] The worm gear screw lift uses the worm gear to drive the screw to complete the functions of lifting, lifting, pushing, turning, etc. It is a basic lifting component. When in use, the screw can be raised and lowered by controlling the forward and reverse rotation of the input shaft. It can be used alone or in conjunction with multiple units.

[0003] In the prior art, before using this kind of screw lift flange that is easy to level, the box of the screw lift must be installed on the lower frame, and the screw flange is connected to the upper frame by screws, and then the screw flange is locked by locking nuts and set screws to prevent it from loosening. When in use, the screw flange together with the screw drives the upper frame to complete the rising and falling movements. When multiple screw lifts are used in conjunction, the distance L between the upper and lower mounting surfaces of different lifts needs to be adjusted to be consistent before the screw flange can be connected to the upper frame. If the deviation of different L values ​​is large, it will cause installation difficulties, and noise or even jamming will occur during the lifting process of the screw.

[0004] The disadvantage of the prior art is that when multiple screw lifts are used in conjunction, it is not easy to adjust the screw flanges to the same height, and it is very difficult to adjust the L value to be completely consistent, that is, the horizontality of the upper frame is not easy to ensure.

[0005] In the prior art, an internal thread is provided on the screw flange, and the screw flange cooperates with the external thread of the screw head. There is a locking nut between the screw flange and the screw, which is used to lock the flange after installation. There are 4 evenly distributed through holes on the end face of the screw flange, which are used to connect the upper frame. When multiple linkage elevators are installed, they need to be adjusted to the same height. Taking two linkages as an example, first rotate the input shaft to make the L values ​​of the two elevators roughly equal, then install the two elevator boxes on the lower frame, install the middle coupling and connecting rod, and then rotate the screw flange to fine-tune the L value. There is a problem at this time. The mounting hole of the upper frame has a phase angle requirement. When the L value is adjusted to be consistent, the mounting hole of the screw flange is very likely to be misaligned with the mounting hole of the upper frame. After the holes of the two are aligned, there is an error in the L value, and the L value can only be adjusted to be consistent by adding an adjustment gasket to one of the flanges. Finally, after the screw flange is connected to the upper frame, tighten the locking nut and the set screw. It can be seen that the existing height adjustment scheme is very inconvenient. In addition, adjustment gaskets of different thicknesses must be prepared in advance, which is time-consuming and laborious. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a screw lift flange that is easy to level, and its purpose is to disclose a new leveling structure that can effectively improve the disadvantage that the current screw lift flange is not easy to adjust the height.

[0007] In order to achieve the above technical objectives, the utility model adopts the following scheme: a screw lift flange that is easy to level, which includes a lift body, a transition head is arranged at the top end of the ball screw of the lift body, a screw flange is arranged on the outside of the transition head, a leveling nut is arranged on the outside of the screw flange, a positioning piece is arranged between the leveling nut and the screw flange or the transition head, a flange top plate is arranged on the top surface of the leveling nut, and a locking device is arranged between the flange top plate and the screw flange.

[0008] The top end of the ball screw is processed with a flat surface and the end is provided with a threaded hole.

[0009] The transition head is cylindrical in design, with a flat surface light hole at one end for matching with the ball screw with a flat surface; the other end of the transition head is a flat surface light shaft, which matches with the flat surface light hole at the lower end of the screw flange.

[0010] The outer circle of the leveling nut is evenly processed with a plurality of planes, and the center of the plane is provided with a threaded hole for installing a set screw.

[0011] Through holes are arranged at the centers of the screw flange and the transition head, and screws fasten the screw flange and the transition head to the ball screw through the through holes.

[0012] The end of the screw rod flange is a through external thread, and the inner hole of the leveling nut is a through internal thread, and the two are screwed together.

[0013] The beneficial effects of the utility model are as follows: the utility model includes a lift body, a transition head is arranged at the top end of the ball screw of the lift body, a screw flange is arranged on the outside of the transition head, a leveling nut is arranged on the outside of the screw flange, a positioning piece is arranged between the leveling nut and the screw flange or the transition head, a flange top plate is arranged on the top surface of the leveling nut, and a locking device is arranged between the flange top plate and the screw flange. After the above structure is arranged, when the utility model is installed and used in conjunction with multiple units, it is only necessary to adjust the screw flanges of all lifts to approximately the same height, align the screw flanges with the mounting holes of the upper frame, and then rotate the leveling nuts in turn, and measure with a height gauge to make the upper planes of the leveling nuts consistent in height relative to the mounting surface of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the leveling nut;

[0016] Figure 3 This is a schematic diagram of the bottom structure of the transition head;

[0017] Figure 4 It is a schematic diagram of the bottom structure of the screw flange;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the screw flange;

[0019] Figure 6 This is a schematic diagram of the use state of the utility model;

[0020] In the accompanying drawings, 1. elevator body, 11. elevator mounting surface, 2. transition head, 21. optical axis, 22. flat surface of optical axis, 23. center threaded hole, 3. screw flange, 31. cylindrical body, 32. threaded hole, 33. flat surface matching groove, 34. center hole, 4. leveling nut, 41. threaded hole, 42. plane, 43. plane threaded hole, 5. set screw, 6. hexagon socket head screw, 7. flange top plate, 8. ball screw, 9. coupling, 10. linkage shaft. DETAILED DESCRIPTION

[0021] The present invention is further described below through specific embodiments. It should be understood that the following description is a specific implementation plan based on the technical solution disclosed in the present invention, and those skilled in the art can make further technical extensions based on the following technical solution.

[0022] Referring to the attached drawings, the utility model discloses a screw lift flange that is easy to level, as shown in the attached drawings, which includes a lift body 1, on which a drive shaft is horizontally arranged, and the drive shaft is used to connect to an external drive device or to be connected in series with multiple external lift bodies 1 through a coupling 9 and a linkage shaft 10.

[0023] The utility model is provided with a ball screw 8 inside a lift body 1, a transition head 2 is provided at the top of the ball screw 8, a screw flange 3 is provided on the outside of the transition head 2, a leveling nut 4 is provided on the outside of the screw flange 3, a plurality of set screws 5 are provided between the leveling nut 4 and the screw flange 3 as positioning members, a flange top plate 7 is provided on the top surface of the leveling nut 4, and the flange top plate 7 and the screw flange 3 are locked by bolts.

[0024] The above structure is the basic structure of the utility model. When forming the above structure, the utility model makes structural changes to each component. The specific improved structure is as follows:

[0025] The top of the ball screw 8 is processed with a flat surface and a threaded hole at the end; the transition head 2 is designed as a cylindrical shape, and one end of it has a light hole with a flat surface for matching with the ball screw with a flat surface; the inner and outer apertures of the ball screw 8 and the transition head 2 are equal, the width of the flat surface is equal, and the matching form is a small gap match, the gap amount is 0.01-0.03mm; Figure 3 As shown, the other end of the transition head 2 is an optical axis 21, and a flat surface 22 is processed on the side of the optical axis 21. The flat surface 22 matches with the optical hole at the lower end of the screw flange 3. The widths of the flat surfaces of the two are equal, and the matching form is a small gap match with a gap amount of 0.01-0.03mm.

[0026] like Figure 2 As shown, the leveling nut 4 is annularly arranged with a threaded hole 41 inside, and four planes 42 are evenly distributed on its outer circle. A threaded hole 43 is provided at the center of each plane 42 for installing a set screw. When the leveling nut 4 is screwed onto the screw flange 3, the end of the screw flange 3 has a through external thread that matches the internal thread of the leveling nut 4, and the two are screwed together.

[0027] The utility model can realize horizontal locking and fixing through the set screws in the threaded holes 43 .

[0028] Through holes are provided on the axis of the screw flange 3 and the transition head 2, and screws are passed through the through holes to fasten the screw flange 3 and the transition head 2 to the ball screw 8.

[0029] After the above structural improvements, the installation sequence of the utility model is described as follows:

[0030] First, insert the transition head 2 into the top of the ball screw 8, and then use the hole with a flat surface on the lower end face of the screw flange 3 to match the transition head 2 to achieve assembly. After the assembly is completed, the screw flange 3, the transition head 2, and the ball screw 8 are fixed together; the outer circle of the screw flange 3 is an external thread, and the inner hole of the leveling nut 4 is a corresponding internal thread. The two are screwed together, and the leveling nut 4 is rotated to adjust the upper and lower positions of the leveling nut 4 relative to the screw flange 3. During adjustment, the installation distance L between the leveling nut 4 and the elevator installation surface 11 can be controlled. When multiple elevator bodies 1 are linked, this control method can ensure that the relative heights between multiple elevator bodies 1 are equal. After the L value is adjusted, the set screw 5 is then used to lock the leveling nut that is finally adjusted into place to prevent it from loosening.

[0031] In summary, when multiple lift bodies 1 need to be leveled, it is only necessary to adjust all lift screw flanges to approximately the same height, align the screw flanges with the mounting holes of the upper frame, and then turn the leveling nuts in turn and measure with a height gauge to make the upper planes of each leveling nut consistent with the height of the box mounting surface. The method of the utility model is very convenient for leveling multiple linked lifts, and there is no need to prepare additional adjustment gaskets of different thicknesses, saving time and effort.

[0032] While disclosing the embodiments, it is explained that the above are only the implementation methods and beneficial effects of the utility model. It should be pointed out that for ordinary technicians in the field of lifting machinery technology, several improvements and modifications can be made without departing from the principles of the utility model. These improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A screw lift flange that is easy to level, comprising a lift body, Features: A transition head is arranged at the top end of the ball screw of the elevator body, a screw flange is arranged on the outside of the transition head, a leveling nut is arranged on the outside of the screw flange, a positioning piece is arranged between the leveling nut and the screw flange or the transition head, a flange top plate is arranged on the top surface of the leveling nut, and a locking device is arranged between the flange top plate and the screw flange.

2. The screw lift flange for easy leveling according to claim 1, Features: The top end of the ball screw is processed with a flat surface and the end is provided with a threaded hole.

3. The screw lift flange for easy leveling according to claim 1, Features: The transition head is cylindrical in design, with a flat surface light hole at one end for matching with the ball screw with a flat surface; the other end of the transition head is a flat surface light shaft, which matches with the flat surface light hole at the lower end of the screw flange.

4. The screw lift flange for easy leveling according to claim 1, Features: The outer circle of the leveling nut is evenly processed with a plurality of planes, and the center of the plane is provided with a threaded hole for installing a set screw.

5. The screw lift flange for easy leveling according to claim 1, Features: Through holes are arranged at the centers of the screw flange and the transition head, and screws fasten the screw flange and the transition head to the ball screw through the through holes.

6. The screw lift flange for easy leveling according to claim 1, Features: The end of the screw rod flange is a through external thread, and the inner hole of the leveling nut is a through internal thread, and the two are screwed together.

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