Spiral lead screw elevator

Abstract

The utility model discloses a spiral lead screw elevator, which relates to the technical field of lead screw elevators and comprises an elevator shell, a worm is rotatably connected in the elevator shell, one side of the worm is meshed with a worm gear, and a replacement component is arranged in the worm gear. A worm is driven to drive a worm wheel to rotate, the worm wheel can stably drive a driven column and a lead screw above the driven column to rotate, so that the driven column and the lead screw stably rotate in situ, and when the rotating lead screw is damaged, hexagon bolts on the two sides are rotated down, and a first positioning frame and a second positioning frame on the two sides are separated from each other to slide; when the lifting machine is used, the rotating lead screw is pulled upwards to be separated from the interior of the worm wheel, so that when the rotating lead screw is damaged, the rotating lead screw can be rapidly detached to be replaced, the mode of replacing the whole lifting machine is not needed, extra cost generated during transportation is reduced, and the transportation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rod lifts, in particular to a spiral screw rod lift. Background Art

[0002] Screw lifts are also called spiral transmission mechanisms. They are mainly used to convert rotational motion into linear motion or linear motion into rotational motion. There are those that mainly transmit motion, such as the feed screw of a machine tool worktable; there are also spiral transmission mechanisms that adjust the relative positions of parts, etc. Screw lifts are divided into sliding friction mechanisms and rolling friction mechanisms. The sliding screw nut mechanism has a simple structure, easy processing, low manufacturing cost, and self-locking function, but its friction resistance torque is large and the transmission efficiency is low. Although the ball screw nut mechanism has a complex structure, high manufacturing cost, and cannot be self-locking, its biggest advantages are small friction resistance torque, high transmission efficiency, high precision, good system stiffness, reversible motion, and long service life.

[0003] The existing spiral screw lift drives the screw to rotate during operation. The screw may be damaged after long-term use, and thus cannot drive the nut to move. Since the screw is generally fixed inside the lift, the screw can only be damaged by replacing the lift, which increases transportation costs and reduces transportation efficiency. Utility Model Content

[0004] Technical issues solved

[0005] In view of the deficiencies in the prior art, the utility model provides a spiral screw lift, which solves the problem that the existing spiral screw lift drives the screw to rotate during operation, and the screw may be damaged after long-term use, thereby making it impossible to drive the nut to move. Since the screw is generally fixed inside the lift, the damage of the screw can only be solved by replacing the lift, which increases transportation costs and reduces transportation efficiency.

[0006] Technical Solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a screw screw elevator, comprising an elevator housing, a worm is rotatably connected inside the elevator housing, a worm wheel is meshedly connected to one side of the worm, and a replacement component is arranged inside the worm wheel;

[0008] The replacement component includes a groove opened on the upper surface of the worm gear, the inner side wall of the groove is fixedly installed with a limit block, the inner bottom wall of the groove is fixedly installed with a plurality of columns, the limit block is slidably connected to the outer surface of the column with a driven column, the upper surface of the driven column is fixedly installed with a rotating screw rod, the outer surface of the rotating screw rod is fixedly installed with a sleeve, the surface of the lift housing is provided with a through hole, the through hole is adapted to the driven column, the upper surface of the lift housing is provided with a first slide groove on both sides, the first slide groove is fixedly installed with a sliding block, the upper and lower surfaces of the sliding block are respectively fixedly installed with a first positioning frame and a second positioning frame, the inner side wall of the first positioning frame is fixedly installed with an arc block, the inner side wall of the arc block is fixedly installed with a plurality of connecting frames, the connecting frame is rotatably connected with a roller, the outer surface of the sleeve is provided with an annular groove, the annular groove is adapted to the arc block, and the surface of the roller is tightly attached to the inner side wall of the annular groove.

[0009] Optionally, connecting ears are fixedly installed on both side surfaces of the first positioning frame, the interiors of the two connecting ears are threadedly connected with hexagonal bolts, and the outer surfaces of the hexagonal bolts are threadedly connected with nuts.

[0010] Optionally, a dustproof plate is fixedly installed on the side surfaces of the first positioning frame, and the dustproof plate is slidably connected to the upper surface of the elevator shell. The dustproof plate covers the upper surface of the first slide groove. Through the setting of the dustproof plate, dust is prevented from entering the interior of the elevator shell through the first slide groove, thereby ensuring the stable operation of the equipment.

[0011] Optionally, a support column is fixedly mounted on the lower surface of the worm gear, and the lower surface of the support column is rotatably connected to a base. A plurality of balls are arranged in a circular array on the upper surface of the base, and the support column is overlapped on the surface of the balls. The arrangement of the balls reduces the friction of the support column during rotation, thereby facilitating the rotation of the support column and improving the smooth operation of the device.

[0012] Optionally, the outer surface of the rotating screw is threadedly connected with a nut, the lower surface of the nut is fixed with an oil storage ring, the interior of the oil storage ring is provided with an oil storage groove, an oil filling pipe is fixedly installed on one side surface of the oil storage ring, and the outer surface of the oil filling pipe is threaded with a pipe cap.

[0013] Optionally, a support is fixedly installed on the lower surface of the oil storage ring, and oil-guiding cotton is arranged inside the support. An oil drain hole is opened on the inner bottom wall of the oil storage tank, and the oil drain hole is connected to the oil-guiding cotton. The lubricating oil is injected into the surface of the oil-guiding cotton through the oil drain hole. The oil-guiding cotton evenly applies the lubricating oil to the outer surface of the rotating screw, thereby improving the convenience of lubrication of the rotating screw.

[0014] Optionally, a sliding hole is opened on one side surface of the oil drain hole, and a blocking ball is slidably connected to the inside of the sliding hole. A pull rod is fixedly installed on one end of the blocking ball. The pull rod slides through and is connected to the oil storage ring. A return spring is fixedly installed on the outer surface of the pull rod, and one end of the return spring is fixedly installed on the inner wall of the sliding hole.

[0015] Beneficial Effects

[0016] The utility model provides a screw screw lift, which has the following beneficial effects:

[0017] The spiral screw lift, through the setting of replacing the components, drives the worm to drive the worm wheel to rotate, and the worm wheel can stably drive the driven column and the upper screw to rotate, and the first positioning frames and the second positioning frames on both sides rotate the rotating screw stably, so that it can rotate stably in situ. When the rotating screw is damaged, the hexagonal bolts on both sides are rotated down, and the first positioning frames and the second positioning frames on both sides are slid away from each other, thereby disengaging from the limit of the sleeve, and then the rotating screw is pulled upward to disengage from the inside of the worm wheel. Therefore, when the rotating screw is damaged, the rotating screw can be quickly disassembled and replaced, without replacing the entire lift, thereby reducing the additional cost incurred during transportation and improving transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the replacement components of the utility model;

[0022] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 5 For this utility model Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 6 It is a partial structural schematic diagram of the replacement component of the utility model.

[0025] In the figure: 1. elevator housing; 2. worm; 3. worm wheel; 4. replacement component; 401. limit block; 402. column; 403. driven column; 404. sleeve; 405. first positioning frame; 406. arc block; 407. roller; 408. annular groove; 409. hexagonal bolt; 5. rotating screw; 6. dust plate; 7. base; 8. ball; 9. nut; 10. oil storage ring; 11. oil guide cotton; 12. oil drain hole; 13. blocking ball; 14. reset spring. DETAILED DESCRIPTION

[0026] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0027] See also Figures 1 to 6 The utility model provides a technical solution: a screw screw elevator, comprising an elevator housing 1, a worm 2 is rotatably connected inside the elevator housing 1, a worm wheel 3 is meshingly connected to one side of the worm 2, and a replacement component 4 is arranged inside the worm wheel 3;

[0028] The replacement component 4 includes a groove opened on the upper surface of the worm wheel 3, a limit block 401 is fixedly installed on the inner side wall of the groove, a plurality of columns 402 are fixedly installed on the inner bottom wall of the groove, a driven column 403 is slidably connected with the outer surface of the limit block 401 and the column 402, a rotating screw 5 is fixedly installed on the upper surface of the driven column 403, a sleeve 404 is fixedly installed on the outer surface of the rotating screw 5, a through hole is opened on the surface of the elevator housing 1, the through hole is adapted to the driven column 403, and a first sliding A sliding block is fixedly installed inside the first sliding groove, and a first positioning frame 405 and a second positioning frame are fixedly installed on the upper and lower surfaces of the sliding block respectively, an arc-shaped clamping block 406 is fixedly installed on the inner wall of the first positioning frame 405, and a plurality of connecting frames are fixedly installed on the inner wall of the arc-shaped clamping block 406, and a roller 407 is rotatably connected inside the connecting frame, and an annular groove 408 is provided on the outer surface of the sleeve 404, and the annular groove 408 is adapted to the arc-shaped clamping block 406, and the surface of the roller 407 is tightly attached to the inner wall of the annular groove 408.

[0029] Connecting ears are fixedly installed on both side surfaces of the first positioning frame 405 , and the interiors of the two connecting ears are threadedly connected with hexagonal bolts 409 , and the outer surfaces of the hexagonal bolts 409 are threadedly connected with nuts.

[0030] The side surfaces of the first positioning frame 405 are fixedly installed with dustproof plates 6, which are slidably connected to the upper surface of the elevator housing 1. The dustproof plates 6 cover the upper surface of the first slide groove. The setting of the dustproof plates 6 prevents dust from entering the interior of the elevator housing 1 through the first slide groove, thereby ensuring the stable operation of the equipment.

[0031] A support column is fixedly installed on the lower surface of the worm gear 3, and the lower surface of the support column is rotatably connected to a base 7. A plurality of balls 8 are arranged in a circular array on the upper surface of the base 7, and the support column is overlapped on the surface of the ball 8. The arrangement of the ball 8 reduces the friction of the support column during rotation, thereby facilitating the rotation of the support column and improving the smooth operation of the device.

[0032] The outer surface of the rotating screw 5 is threadedly connected with a nut 9, the lower surface of the nut 9 is fixed with an oil storage ring 10, the interior of the oil storage ring 10 is provided with an oil storage tank, and an oil filling pipe is fixedly installed on one side surface of the oil storage ring 10, and the outer surface of the oil filling pipe is threaded with a pipe cap.

[0033] A support is fixedly installed on the lower surface of the oil storage ring 10, and oil-guiding cotton 11 is arranged inside the support. An oil drain hole 12 is opened on the inner bottom wall of the oil storage tank. The oil drain hole 12 is connected to the oil-guiding cotton 11. The lubricating oil is injected into the surface of the oil-guiding cotton 11 through the oil drain hole 12. The oil-guiding cotton 11 evenly applies the lubricating oil to the outer surface of the rotating screw 5, thereby improving the convenience of lubrication of the rotating screw 5.

[0034] A sliding hole is opened on one side surface of the oil drain hole 12, and a blocking ball 13 is slidably connected inside the sliding hole. A pull rod is fixedly installed on one end of the blocking ball 13. The pull rod slides through and is connected to the oil storage ring 10. A return spring 14 is fixedly installed on the outer surface of the pull rod, and one end of the return spring 14 is fixedly installed on the inner wall of the sliding hole.

[0035] In the utility model, the working steps of the device are as follows:

[0036] When the equipment is started, the driving worm 2 drives the worm wheel 3 engaged on one side to rotate, and the worm wheel 3 drives the driven column 403 to rotate through the limit block 401 inside the groove and the column 402, and the driven column 403 drives the upper rotating screw 5 to rotate, and the rotating screw 5 drives the sleeve 404 to rotate on the surface of the roller 407. When the rotating screw 5 is damaged, the staff first rotates the nut to remove it from the surface of the hexagonal bolt 409, and then rotates the hexagonal bolt 409 to remove the two from the surface of the connecting ear, and then pulls the first positioning frames 405 on both sides away from each other, and the first positioning frame 405 drives the second positioning frame to move synchronously through the sliding block, and the sliding block slides inside the first slide groove, and the first positioning frame 405 drives the arc block 406 and the roller 407 of the inner wall to move, so that the arc block 406 and the roller 407 are separated from the annular groove on the side surface of the sleeve 404. 408, release the limit on the sleeve 404, and then pull upward the rotating screw 5 and the driven column 403, so that the driven column 403 is separated from the outer surface of the limit block 401 and the column 402, so that the rotating screw 5 is removed from the inside of the equipment for replacement, and the reinstalled rotating screw 5 is put on. When the rotating screw 5 needs to be lubricated, the staff can first inject the lubricating oil into the oil storage tank inside the oil storage ring 10 through the oil filling pipe, and then pull the pull rod to drive the blocking ball 13 to move and squeeze the reset spring 14 on one side, so that the lubricating oil inside the oil storage tank is injected into the oil guide cotton 11 through the oil drain hole 12, and then release the pull rod to drive the blocking ball 13 to reset through the reset spring 14 to block the oil drain hole 12, and drive the oil guide cotton 11 to move through the movement of the nut 9, so that the lubricating oil inside the oil guide cotton 11 is evenly applied to the outer surface of the rotating screw 5.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw screw elevator, comprising an elevator housing (1), characterized in that: A worm (2) is rotatably connected inside the elevator housing (1), a worm wheel (3) is meshingly connected to one side of the worm (2), and a replacement component (4) is arranged inside the worm wheel (3); The replacement component (4) comprises a groove formed on the upper surface of the worm wheel (3), a limit block (401) being fixedly mounted on the inner side wall of the groove, a plurality of columns (402) being fixedly mounted on the inner bottom wall of the groove, a driven column (403) being slidably connected between the limit block (401) and the outer surface of the column (402), a rotating screw (5) being fixedly mounted on the upper surface of the driven column (403), a sleeve (404) being fixedly mounted on the outer surface of the rotating screw (5), a through hole being formed on the surface of the elevator housing (1), the through hole being adapted to the driven column (403), and two sides of the upper surface of the elevator housing (1) being formed A first slide groove is provided, a sliding block is fixedly installed inside the first slide groove, a first positioning frame (405) and a second positioning frame are fixedly installed on the upper and lower surfaces of the sliding block respectively, an arc-shaped clamping block (406) is fixedly installed on the inner side wall of the first positioning frame (405), a plurality of connecting frames are fixedly installed on the inner side wall of the arc-shaped clamping block (406), a roller (407) is rotatably connected inside the connecting frame, an annular groove (408) is provided on the outer surface of the sleeve (404), the annular groove (408) is adapted to the arc-shaped clamping block (406), and the surface of the roller (407) is in close contact with the inner side wall of the annular groove (408).

2. A screw rod lift according to claim 1, characterized in that: Connecting ears are fixedly mounted on both side surfaces of the first positioning frame (405), the interiors of the two connecting ears are threadedly connected with hexagonal bolts (409), and the outer surfaces of the hexagonal bolts (409) are threadedly connected with nuts.

3. A screw rod lift according to claim 2, characterized in that: The side surfaces of the first positioning frame (405) are fixedly mounted with dustproof plates (6), and the dustproof plates (6) are slidably connected to the upper surface of the elevator housing (1), and the dustproof plates (6) cover the upper surface of the first slide groove.

4. A screw rod lift according to claim 1, characterized in that: A support column is fixedly mounted on the lower surface of the worm wheel (3), the lower surface of the support column is rotatably connected to a base (7), a plurality of balls (8) are arranged in a circular array on the upper surface of the base (7), and the support column is overlapped on the surface of the balls (8).

5. The screw rod lift according to claim 1, characterized in that: The outer surface of the rotating screw (5) is threadedly connected to a nut (9), the lower surface of the nut (9) is fixed with an oil storage ring (10), the interior of the oil storage ring (10) is provided with an oil storage groove, and an oil filling pipe is fixedly installed on one side surface of the oil storage ring (10), and the outer surface of the oil filling pipe is threadedly provided with a pipe cap.

6. A screw rod lift according to claim 5, characterized in that: A support is fixedly mounted on the lower surface of the oil storage ring (10), an oil guide cotton (11) is arranged inside the support, an oil discharge hole (12) is opened on the inner bottom wall of the oil storage tank, and the oil discharge hole (12) is connected to the oil guide cotton (11).

7. A screw rod lift according to claim 6, characterized in that: A sliding hole is provided on one side surface of the oil drain hole (12), and a blocking ball (13) is slidably connected inside the sliding hole. A pull rod is fixedly installed on one end of the blocking ball (13), and the pull rod slides through and is connected to the oil storage ring (10). A return spring (14) is fixedly installed on the outer surface of the pull rod, and one end of the return spring (14) is fixedly installed on the inner wall of the sliding hole.

Images