CN202170234U - Lifting mechanism - Google Patents
Lifting mechanism Download PDFInfo
- Publication number
- CN202170234U CN202170234U CN2011202714277U CN201120271427U CN202170234U CN 202170234 U CN202170234 U CN 202170234U CN 2011202714277 U CN2011202714277 U CN 2011202714277U CN 201120271427 U CN201120271427 U CN 201120271427U CN 202170234 U CN202170234 U CN 202170234U
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- CN
- China
- Prior art keywords
- lifting mechanism
- chain
- lead screw
- fixed
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a lifting mechanism which comprises a long leading screw, wherein a trapezoidal nut is arranged at the upper end of the long leading screw; the trapezoidal nut is fixed with a support frame; chain wheels are arranged at the two ends of the support frame through first bearings; a chain is arranged on the chain wheels; a connecting bolt is arranged at one end of the chain; the other end of the chain is fixed on a furnace body; the lower end of the long leading screw is connected with a port in the vertical direction of a reversing transmission speed reducer; a port in the horizontal direction of the reversing transmission speed reducer is connected with a motor and a transmission component; the lifting mechanism is characterized in that the reversing transmission speed reducer is fixed on the support frame; a support frame base is fixed on a shell at the upper end of the reversing transmission speed reducer; a positioning and connecting sleeve is arranged on the support frame base through a flat-bottom thrust ball bearing; and the long leading screw is connected with the port in the vertical direction of the reversing transmission speed reducer through a connecting sleeve. The lifting mechanism improves the working environment of a reverser, so that the service life of the reverser is greatly prolonged; and the elevating mechanism has more stable working performance and can be maintained more conveniently.
Description
Technical field
The utility model relates to a kind of lifting mechanism, belongs to mechanical field.
Background technology
In mechanical device, reasonably mechanism design can let mechanical device obtain more stable running ability, the life-span of longer time.In existing lifting mechanism, the converting motion direction not only is responsible in deflector, also will bear the immense pressure that comes from the vertical direction; The gravity of the material above the bay-lift directly acts on leading screw; The leading screw pressure further passes to commutator again, and the weight of material above the lifting mechanism is unfixing, therefore; Parts such as the gear in the commutator of in this mechanical device, working can produce problems such as wearing and tearing and stress fatigue because of immense pressure and reverse load, cause its work life greatly to reduce.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art, and a kind of lifting mechanism is provided, and improves the load state of commutator mechanism, prolongs its service life.
According to the technical scheme that the utility model provides, said lifting mechanism comprises long lead screw; Upper end at long lead screw is equipped with trapezoidal nut; Trapezoidal nut and bracing frame are fixed, and sprocket wheel is installed through clutch shaft bearing respectively in the two ends of bracing frame, and chain is set on sprocket wheel; One end of chain is provided with and is used for chain is fixed on the tie bolt on the lifting table, and the other end of chain is fixed on the body of heater; The lower end of said long lead screw is connected with the port of reverse drive retarder vertical direction, and the port of said reverse drive retarder horizontal direction is connected with motor and drive disk assembly; Characteristic is: said reverse drive retarder is fixed on the support; On the housing of reverse drive retarder upper end, be fixed with the bracing frame pedestal; Through flat thrust ball bearing installing and locating adapter sleeve, said long lead screw is connected with the port of reverse drive retarder vertical direction through adapter sleeve on the bracing frame pedestal.
Lower end at said long lead screw is provided with protecting sleeve, and protecting sleeve is set on the adapter sleeve, on the outer wall of adapter sleeve, convexes with to be used for protecting sleeve is carried out spacing limiting stopper.
Said drive disk assembly is a reductor; The clutch end of motor is connected with the power intake of reductor; The clutch end of reductor is connected with transmission shaft; Transmission shaft is connected with second center cross, and second center cross is connected with tween drive shaft through the universal-joint fork, and tween drive shaft is connected with the port of reverse drive retarder horizontal direction through first center cross.
Said long lead screw is captiveed joint through pin with adapter sleeve.
Said transmission shaft is arranged on the flanged shaft bearing through second bearing, and the flanged shaft bearing is captiveed joint with reductor.
The utlity model has following advantage:
(1) improved the working environment of commutator device, its work life is greatly prolonged;
(2) this device has more stable serviceability, is convenient to more safeguard.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the I enlarged drawing of Fig. 1.
The specific embodiment
Below in conjunction with concrete accompanying drawing the utility model is described further.
Like Fig. 1 ~ shown in Figure 2: lifting mechanism comprises support 1, reverse drive retarder 2, pedestal 3, long lead screw 4, adapter sleeve 5, flat thrust ball bearing 6, first center cross 7, trapezoidal nut 8, bracing frame 9, chain 10, tie bolt 11, tween drive shaft 12, universal-joint fork 13, second center cross 14, flanged shaft bearing 15, reductor 16, motor 17, clutch shaft bearing 18, sprocket wheel 19, transmission shaft 20, second bearing 21, limiting stopper 22, protecting sleeve 23, pin 24 etc.
The utility model comprises long lead screw 4; In the upper end of long lead screw 4 trapezoidal nut 8 is installed; Trapezoidal nut 8 is fixing with bracing frame 9, and sprocket wheel 19 is installed through clutch shaft bearing 18 respectively in the two ends of bracing frame 9, and chain 10 is set on sprocket wheel 19; One end of chain 10 is provided with and is used for chain 10 is fixed on the tie bolt 11 on the lifting table, and the other end of chain 10 is fixed on the body of heater; The lower end of said long lead screw 4 is connected with the port of reverse drive retarder 2 vertical direction; The port of said reverse drive retarder 2 horizontal directions is connected with motor 17 and drive disk assembly; Said drive disk assembly is a reductor 16; The clutch end of motor 17 is connected with the power intake of reductor 16, and the clutch end of reductor 16 is connected with transmission shaft 20, and transmission shaft 20 is connected with second center cross 14; Second center cross 14 is connected with tween drive shaft 12 through universal-joint fork 13, and tween drive shaft 12 is connected with the port of reverse drive retarder 2 horizontal directions through first center cross 7; Said reverse drive retarder 2 is fixed on the support 1; On the housing of reverse drive retarder 2 upper ends, be fixed with bracing frame pedestal 3; Through flat thrust ball bearing 6 installing and locating adapter sleeves 5, said long lead screw 4 is connected with the port of reverse drive retarder 2 vertical direction through adapter sleeve 5 on bracing frame pedestal 3;
Be provided with protecting sleeve 23 in the lower end of long lead screw 4, protecting sleeve 23 is set on the adapter sleeve 5, on the outer wall of adapter sleeve 5, convexes with to be used for protecting sleeve 23 is carried out spacing limiting stopper 22;
Said long lead screw 4 is captiveed joint through pin 24 with adapter sleeve 5;
Said transmission shaft 20 is arranged on the flanged shaft bearing 15 through second bearing 21, and flanged shaft bearing 15 is captiveed joint with reductor 16.
The principle of work of the utility model: motor 17 through reductor 16, transmission shaft 20, second center cross 14, universal-joint fork 13, tween drive shaft 12, first center cross 7 with transmission of power to reverse drive retarder 2; The rotation of vertical direction changed into the rotation of horizontal direction by reverse drive retarder 2; Driving long lead screw 4 rotates; Drive bracing frame 9 through long lead screw 4 and trapezoidal nut combination 8 and go up and down, the sprocket wheel 19 drive chains 10 on the bracing frame 9 drive lifting table and move up and down.When lifting mechanism is worked; Long lead screw 4 bears the material action of gravity of self elevating platform; Long lead screw 4 with weight transfer to adapter sleeve 5; Adapter sleeve 5 again through flat thrust ball bearing 6 with weight transfer to bracing frame pedestal 3, bracing frame pedestal 3 further is delivered to power on the shell of reverse drive retarder 2 again, shell is delivered to ground through support 1.The utility model has carried out design again to the strained condition of switching-over gearing speed-reducer 2; Change its axial stress distribution through install a flat thrust ball bearing additional in vertical direction; Make axial force be delivered on the shell of reverse drive retarder 2 through thrust ball bearing; Drive disk assembly such as reverse drive retarder 2 internal gears is no longer received from the flat-bed immense pressure, improve the load state of commutator mechanism, thereby obtain good working environment; Prolong the service life of this mechanism, and made its functional reliability and stability strengthen greatly.
Claims (5)
1. lifting mechanism; Comprise long lead screw (4), in the upper end of long lead screw (4) trapezoidal nut (8) is installed, trapezoidal nut (8) is fixing with bracing frame (9); Sprocket wheel (19) is installed through clutch shaft bearing (18) respectively in the two ends of bracing frame (9); Chain (10) is set on sprocket wheel (19), and an end of chain (10) is provided with and is used for chain (10) is fixed on the tie bolt (11) on the lifting table, and the other end of chain (10) is fixed on the body of heater; The lower end of said long lead screw (4) is connected with the port of reverse drive retarder (2) vertical direction, and the port of said reverse drive retarder (2) horizontal direction is connected with motor (17) and drive disk assembly; It is characterized in that: said reverse drive retarder (2) is fixed on the support (1); On the housing of reverse drive retarder (2) upper end, be fixed with bracing frame pedestal (3); Go up through flat thrust ball bearing (6) installing and locating adapter sleeve (5) at bracing frame pedestal (3), said long lead screw (4) is connected with the port of reverse drive retarder (2) vertical direction through adapter sleeve (5).
2. lifting mechanism as claimed in claim 1; It is characterized in that: be provided with protecting sleeve (23) in the lower end of said long lead screw (4); Protecting sleeve (23) is set on the adapter sleeve (5), on the outer wall of adapter sleeve (5), convexes with to be used for protecting sleeve (23) is carried out spacing limiting stopper (22).
3. lifting mechanism as claimed in claim 1; It is characterized in that: said drive disk assembly is reductor (16); The clutch end of motor (17) is connected with the power intake of reductor (16); The clutch end of reductor (16) is connected with transmission shaft (20); Transmission shaft (20) is connected with second center cross (14), and second center cross (14) is connected with tween drive shaft (12) through universal-joint fork (13), and tween drive shaft (12) is connected with the port of reverse drive retarder (2) horizontal direction through first center cross (7).
4. lifting mechanism as claimed in claim 1 is characterized in that: said long lead screw (4) is captiveed joint through pin (24) with adapter sleeve (5).
5. lifting mechanism as claimed in claim 1 is characterized in that: said transmission shaft (20) is arranged on the flanged shaft bearing (15) through second bearing (21), and flanged shaft bearing (15) is captiveed joint with reductor (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202714277U CN202170234U (en) | 2011-07-28 | 2011-07-28 | Lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202714277U CN202170234U (en) | 2011-07-28 | 2011-07-28 | Lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170234U true CN202170234U (en) | 2012-03-21 |
Family
ID=45828436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202714277U Withdrawn - After Issue CN202170234U (en) | 2011-07-28 | 2011-07-28 | Lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202170234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390793A (en) * | 2011-07-28 | 2012-03-28 | 无锡四方集团真空炉业有限公司 | Elevating mechanism |
-
2011
- 2011-07-28 CN CN2011202714277U patent/CN202170234U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390793A (en) * | 2011-07-28 | 2012-03-28 | 无锡四方集团真空炉业有限公司 | Elevating mechanism |
| CN102390793B (en) * | 2011-07-28 | 2013-06-12 | 无锡四方集团真空炉业有限公司 | Elevating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120321 Effective date of abandoning: 20130612 |
|
| RGAV | Abandon patent right to avoid regrant |