CN210736142U - Worm gear and worm machine top device for screw rod nut lifting platform - Google Patents
Worm gear and worm machine top device for screw rod nut lifting platform Download PDFInfo
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- CN210736142U CN210736142U CN201921262209.XU CN201921262209U CN210736142U CN 210736142 U CN210736142 U CN 210736142U CN 201921262209 U CN201921262209 U CN 201921262209U CN 210736142 U CN210736142 U CN 210736142U
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- worm
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- screw rod
- accommodating box
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Abstract
The utility model discloses a screw-nut is worm gear machine top device for lift platform relates to screw-nut lift platform technical field. The utility model comprises a top frame and an accommodating box; the lower surfaces of the two top frames are fixedly connected with supporting plates side by side; the accommodating box is rotatably connected with a worm wheel through a cushion cover; the worm wheel is meshed with a worm; one end of the worm penetrates through the side wall of the accommodating box and is connected with a motor; the accommodating box is connected with a screw through an ear plate; the side surface of the screw rod is sleeved with a spring; the other end of the screw rod is connected with the supporting plate through a nut. The utility model connects the screw rod through the containing box, and the spring is sleeved through the screw rod, so that the containing box and the top frame realize the buffer function; the problem that the abrasion between the screw rod and the screw rod nut is aggravated due to the fact that the conventional screw rod is relatively fixed and is easy to be impacted is solved; utilize worm gear machine and motor to be connected through the lead screw, make the lead screw independently rotate, solved current screw-nut drive trouble, lift platform can't move, has the problem of potential safety hazard.
Description
Technical Field
The utility model belongs to the technical field of screw-nut lift platform, especially, relate to a screw-nut is worm gear roof device for lift platform.
Background
The existing screw nut lifting platform mainly comprises a screw rod, a screw nut, a driving device and a lifting platform box body; the lifting platform box body can move up and down through the matching rotation of the screw rod and the screw rod nut; the existing driving mode mainly comprises two modes of driving a screw rod to rotate and driving a screw rod nut to rotate.
The lead screw is required to be relatively fixed in a mode of driving the lead screw nut to rotate; in the mode, when the lifting platform is loaded, the lead screw is subjected to larger impact in the starting and stopping processes, so that the abrasion between the lead screw and the lead screw nut is aggravated; meanwhile, under the condition that the screw rod is fixed, if the driving part for driving the screw rod nut breaks down, the lifting platform cannot run, so that personnel are trapped, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a worm gear and worm jacking device for a screw nut lifting platform, which is characterized in that a screw rod is connected through an accommodating box, and a spring is sleeved on the screw rod, so that the accommodating and top frame can realize the buffer effect; the problem that the abrasion between the screw rod and the screw rod nut is aggravated due to the fact that the conventional screw rod is relatively fixed and is easy to be impacted is solved; utilize worm gear machine and motor to be connected through the lead screw, make the lead screw independently rotate, solved current screw-nut drive trouble, lift platform can't move, has the problem of potential safety hazard.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a worm gear and worm jacking device for a screw nut lifting platform, which comprises a top frame and an accommodating box; the top frame comprises two opposite C-shaped plates; the lower surfaces of the two top frames are fixedly connected with supporting plates side by side;
the supporting plate is of a U-shaped structure; the upper surfaces of the two side walls of the supporting plate are fixedly connected with the top frame through strip-shaped plates; the surface of the supporting plate is provided with a through hole;
the accommodating box is of a box-shaped structure; the inner bottom surface of the accommodating box is provided with a cushion sleeve hole; a cushion cover is rotatably connected in the cushion cover hole; the opposite side surfaces of the accommodating boxes are fixedly connected with ear plates;
the peripheral side surface of the upper end of the cushion cover is fixedly connected with a circular cushion plate; the upper surface of the circular base plate is fixedly connected with a worm wheel; the worm wheel is meshed with a worm;
the worm is rotationally connected with the side wall of the accommodating box through a bearing seat; one end of the worm penetrates through the side wall of the accommodating box and is connected with a motor through a coupler; the motor is fixedly connected with the accommodating box through a fixing plate;
the upper surface of the lug plate is provided with a screw hole, and the screw hole is connected with a screw; the side surface of the screw rod is sleeved with a spring; the other end of the screw penetrates through the through hole and is connected with the supporting plate through a nut;
the spring is located between the ear plate and the support plate.
Furthermore, the upper surface of the C-shaped plate is provided with a notch corresponding to the position of the accommodating box.
Furthermore, the lower surface of one lug plate is fixedly connected with a vertical plate; waist-shaped holes are formed in the surfaces of the vertical plates in parallel and are fixedly connected with the fixed plate through bolts.
Furthermore, a first gasket and a second gasket are sleeved on the peripheral side face of the screw rod; the upper surface of the first gasket is in contact fit with one end of the spring; the lower surface of the first gasket is in contact fit with the surface of the support plate.
Further, the second gasket is abutted against the lower bottom surface of the support plate through a nut.
The utility model discloses following beneficial effect has:
1. the utility model discloses a hold connecting spring between box and top frame, play the effect of buffering when starting and stopping under load state to the lead screw to reduce the wearing and tearing between lead screw or screw-nut, improve the stability of lift platform operation, effectual lift platform's life.
2. The utility model discloses a set up worm gear mechanism at the lift platform top and be connected with the lead screw to through motor drive, but make lead screw independent control and rotate, when screw-nut drive division trouble, accessible control lead screw rotates, and realizes the lift of lift platform box, realizes reserve emergent purpose, has avoided the lift platform trouble, and the condition that leads to personnel to be stranded appears, has improved reliability and security that lift platform used.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a worm and gear jacking device for a screw-nut lifting platform according to the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic bottom view of FIG. 2;
FIG. 4 is a schematic bottom view of the top frame;
FIG. 5 is a schematic structural view of the accommodation box, the cushion cover, the screw and the worm gear;
FIG. 6 is a schematic view of the structure of the accommodation box;
FIG. 7 is a schematic view of the cushion cover;
in the drawings, the components represented by the respective reference numerals are listed below:
1-top frame, 2-containing box, 3-supporting plate, 5-worm wheel, 6-worm, 7-motor, 8-screw, 9-spring, 21-cushion cover, 101-C-shaped plate, 102-notch, 201-lug plate, 202-vertical plate, 203-waist-shaped hole, 210-circular base plate, 301-strip-shaped plate, 302-through hole, 701-fixing plate, 801-first gasket and 802-second gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1 and 2, the utility model relates to a worm gear set-top device for a screw-nut lifting platform, which comprises a top frame 1 and an accommodating box 2; the top frame 1 comprises two opposite C-shaped plates 101; the lower surfaces of the two top frames 1 are welded with support plates 3 side by side;
the upper surface of the C-shaped plate 101 is provided with a notch 102 at a position corresponding to the accommodating box 2, so that the accommodating box 2 can be conveniently installed.
As shown in fig. 3 and 4, the support plate 3 has a U-shaped configuration; the upper surfaces of the two side walls of the supporting plate 3 are welded with the top frame 1 through strip-shaped plates 301; the surface of the supporting plate 3 is provided with a through hole 302;
as shown in fig. 5 and 6, the accommodation box 2 is a box-like structure; the inner bottom surface of the accommodating box 2 is provided with a cushion sleeve hole; a cushion cover 21 is rotatably connected in the cushion cover hole; ear plates 201 are welded on the opposite side surfaces of the accommodating box 2;
as shown in fig. 7, a circular cushion plate 210 is welded on the peripheral side surface of the upper end of the cushion cover 21, the peripheral side surface of the cushion cover 21 can be rotatably connected with a cushion cover hole through a bearing, or the lower surface of the circular cushion plate 210 is rotatably connected with the inner bottom surface of the accommodating box 2 through a thrust bearing; the upper surface of the circular base plate 210 is fixedly connected with a worm wheel 5; the worm wheel 5 is meshed with a worm 6; a connecting hole is formed in the rotation center of the worm gear 5 and is fixedly connected with the screw rod through the connecting hole, so that the worm gear 5 and the screw rod can synchronously rotate;
the worm 6 is rotationally connected with the side wall of the accommodating box 2 through a bearing seat; one end of the worm 6 penetrates through the side wall of the accommodating box 2 and is connected with a motor 7 through a coupling; the motor 7 is fixedly connected with the accommodating box 2 through a fixing plate 701;
preferably, a riser 202 is welded to the lower surface of one of the ear plates 201; waist shape hole 203 has been seted up side by side to riser 202 surface to through bolt and fixed plate 701 fixed connection, thereby realize motor 7 and hold the fixed connection between box 2, make motor 7 can move along with holding box 2.
The upper surface of the lug plate 201 is provided with a screw hole, the screw hole is connected with a screw 8, specifically, the screw hole is in clearance fit with the screw 8, and the screw 8 is matched with a nut, so that the screw 8 is arranged in the screw hole;
a spring 9 is sleeved on the peripheral side surface of the screw 8; the other end of the screw 8 penetrates through the through hole 302 and is connected with the support plate 3 through a nut; the spring 9 is located between the ear plate 201 and the support plate 3.
As shown in fig. 3 and 5, a first gasket 801 and a second gasket 802 are sleeved on the peripheral side of the screw 8; the upper surface of the first gasket 801 is in contact fit with one end of the spring 9; the lower surface of the first gasket 801 is in surface contact fit with the surface of the support plate 3; the second gasket 802 abuts against the lower bottom surface of the support plate 3 through a nut; during installation, the nut below the second gasket 802 is screwed down, and the accommodating box 2 is pulled down by the screw 8, so that the spring 9 has a certain pretightening force, and the stability of the accommodating box 2 can be ensured;
the weight of the lifting platform box body is applied to the screw rod by the screw rod nut; therefore, when the screw rod nut lifting platform is started or stopped in a loaded state, the impact on the screw rod is transmitted to the accommodating box 2, so that the accommodating box 2 is buffered through the spring 9, and then the impact on the screw rod is buffered; the abrasion of the screw rod and the screw nut piece of the screw rod is effectively reduced, and the service life of the lifting platform is prolonged;
meanwhile, when the screw nut driving device breaks down, the screw rod can be driven to rotate through the motor 7 alone, so that the lifting platform box body is slowly placed to a safe position, the purpose of standby emergency is achieved, the lifting platform is prevented from breaking down, the situation that personnel are trapped is caused, and the reliability and the safety of the lifting platform are improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. Screw-nut is worm gear machine top device for lift platform, its characterized in that: comprises a top frame (1) and an accommodating box (2); the top frame (1) comprises two opposite C-shaped plates (101); the lower surfaces of the two top frames (1) are fixedly connected with supporting plates (3) side by side;
the supporting plate (3) is of a U-shaped structure; the upper surfaces of the two side walls of the supporting plate (3) are fixedly connected with the top frame (1) through strip-shaped plates (301); a through hole (302) is formed in the surface of the supporting plate (3);
the accommodating box (2) is of a box-shaped structure; the inner bottom surface of the accommodating box (2) is provided with a pad sleeve hole; a cushion cover (21) is rotatably connected in the cushion cover hole; one opposite side surface of the accommodating box (2) is fixedly connected with an ear plate (201);
a circular base plate (210) is fixedly connected to the peripheral side surface of the upper end of the cushion cover (21); the upper surface of the circular base plate (210) is fixedly connected with a worm wheel (5); the worm wheel (5) is meshed with a worm (6);
the worm (6) is rotationally connected with the side wall of the accommodating box (2) through a bearing seat; one end of the worm (6) penetrates through the side wall of the accommodating box (2) and is connected with a motor (7) through a coupler; the motor (7) is fixedly connected with the accommodating box (2) through a fixing plate (701);
the upper surface of the lug plate (201) is provided with a screw hole, and the screw hole is connected with a screw (8); a spring (9) is sleeved on the peripheral side surface of the screw rod (8); the other end of the screw rod (8) penetrates through the through hole (302) and is connected with the support plate (3) through a nut;
the spring (9) is positioned between the ear plate (201) and the support plate (3).
2. The worm gear and worm set-top device for the lead screw nut lifting platform is characterized in that a notch (102) is formed in the position, opposite to the accommodating box (2), of the upper surface of the C-shaped plate (101).
3. The worm gear and worm set-top device for the lead screw nut lifting platform as claimed in claim 1, characterized in that a vertical plate (202) is fixedly connected to the lower surface of one of the ear plates (201); waist-shaped holes (203) are formed in the surfaces of the vertical plates (202) in parallel and are fixedly connected with the fixing plate (701) through bolts.
4. The worm gear and worm set-top device for the lead screw nut lifting platform is characterized in that a first gasket (801) and a second gasket (802) are sleeved on the peripheral side of the screw rod (8);
the upper surface of the first gasket (801) is in contact fit with one end of a spring (9); the lower surface of the first gasket (801) is in surface contact fit with the surface of the support plate (3).
5. The worm gear and worm set-top device for the lead screw nut lifting platform is characterized in that the second gasket (802) is abutted to the lower bottom surface of the support plate (3) through a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921262209.XU CN210736142U (en) | 2019-08-06 | 2019-08-06 | Worm gear and worm machine top device for screw rod nut lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921262209.XU CN210736142U (en) | 2019-08-06 | 2019-08-06 | Worm gear and worm machine top device for screw rod nut lifting platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210736142U true CN210736142U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921262209.XU Active CN210736142U (en) | 2019-08-06 | 2019-08-06 | Worm gear and worm machine top device for screw rod nut lifting platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210736142U (en) |
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2019
- 2019-08-06 CN CN201921262209.XU patent/CN210736142U/en active Active
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