CN202609777U - Dustproof structure for hook assembly - Google Patents
Dustproof structure for hook assembly Download PDFInfo
- Publication number
- CN202609777U CN202609777U CN 201220238482 CN201220238482U CN202609777U CN 202609777 U CN202609777 U CN 202609777U CN 201220238482 CN201220238482 CN 201220238482 CN 201220238482 U CN201220238482 U CN 201220238482U CN 202609777 U CN202609777 U CN 202609777U
- Authority
- CN
- China
- Prior art keywords
- hook
- bearing
- nut
- lifting beam
- assembly
- 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- Withdrawn - After Issue
Links
- 239000000428 dust Substances 0.000 claims abstract description 17
- 239000000725 suspension Substances 0.000 claims description 19
- 238000010276 construction Methods 0.000 claims description 13
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model relates to a dustproof structure for hook assembly, which comprises a hook nut, a bearing and a hook beam, wherein the bearing is arranged between the hook nut and the hook beam, the lower end face of the hook nut directly abuts against the upper end face of the bearing, the outer circumferential surface of the lower end of the hook nut is provided with a step, the hook beam opens with a ring slot which is coaxial with the bearing, and a dust cover covering the bearing is arranged between the step and the ring slot. The dustproof structure for hook assembly provided by the utility model is provided with a individual dustproof cover and has good tightness, so that the serving life of the bearing is prolonged, the volume for manufacturing billets of the hook nut and the hook beam is decreased, processing difficulty of the hook nut and the hook beam is lowered, and the cost of the hook assembly is lowered.
Description
Technical field
The utility model relates to the suspension hook assembly of elevator machinery, specifically a kind of dustproof construction of suspension hook assembly.
Background technology
The suspension hook assembly is the load-engaging device on the elevator machinery.As shown in Figure 1, the suspension hook assembly mainly comprises parts such as hook nut 1, bearing 2, lifting beam with hook 3 and suspension hook 4.In order to improve the service life of bearing 2, must on the suspension hook assembly, design dustproof construction.
Existing dustproof construction comprises the boss 5 that is arranged on the lifting beam with hook 3 and is arranged on the shirt rim 6 of hook nut 1 lower end; Boss 5 is all coaxial with the bearing hole that bearing 2 is installed with shirt rim 6; Shirt rim 6 covers on the boss 5, forms labyrinth packing, has played certain dustproof effect.But, after this dustproof construction lifting beam with hook 3, hook nut 1 and bearing 2 assemblings, there is very big gap, sealing effectiveness is relatively poor; When suspension hook assembly in harsh environment work the time, impurity such as dust still are easy to into, and dust adhesion has strengthened the wearing and tearing of bearing 2 on bearing 2, reduced the service life of bearing 2.
In addition owing to will boss 5 be set on the lifting beam with hook 3, shirt rim 6 is being set on hook nut 1, increased these two parts blank volume and increased the complexity of processing technology, increased material cost and tooling cost.
Summary of the invention
The utility model provides a kind of dustproof construction of suspension hook assembly, this dustproof construction good sealing effect, the service life that can improve bearing to the problems referred to above.
Technical scheme according to the utility model: a kind of dustproof construction of suspension hook assembly; Comprise hook nut, bearing and lifting beam with hook; Said bearing installation is between said hook nut and said lifting beam with hook; The lower surface of said hook nut directly is resisted against on the upper surface of said bearing; The outer circumference surface of said hook nut lower end is provided with step, has the annular groove with said coaxial bearing on the said lifting beam with hook, and the cover of dust that covers said bearing is installed between said step and the said annular groove.
Said cover of dust is a cylindrical shape, and its upper end is provided with inside flange, and said inside flange is installed in the said step, and the lower end of said cover of dust is inserted in the said annular groove.
The lower surface of said inside flange is resisted against on the upper surface of said bearing.
The technique effect of the utility model is: the utility model is provided with independent cover of dust; Good airproof performance; Improved the service life of bearing; Reduce to make the volume of the blank of hook nut and lifting beam with hook, reduced the difficulty of processing of hook nut and lifting beam with hook, reduced the cost of suspension hook assembly.
Description of drawings
Fig. 1 is the structural representation of the dustproof construction of existing suspension hook assembly.
Fig. 2 is the structural representation of the utility model.
The specific embodiment
Be further described below in conjunction with the specific embodiment of accompanying drawing the utility model.
Among Fig. 1, Fig. 2, comprise hook nut 1, bearing 2, lifting beam with hook 3, suspension hook 4, boss 5, shirt rim 6, annular groove 7, cover of dust 8, inside flange 9, step 10 etc.
As shown in Figure 2; The utility model is a kind of dustproof construction of suspension hook assembly; Comprise hook nut 1, bearing 2 and lifting beam with hook 3, bearing 2 is installed between hook nut 1 and the lifting beam with hook 3, and suspension hook 4 passes lifting beam with hook 3 and bearing 2 rear threads are connected on the hook nut 1.
In the utility model, the lower surface of hook nut 1 directly is resisted against on the upper surface of bearing 2, and the outer circumference surface of hook nut 1 lower end is provided with step 10; Have the annular groove 7 coaxial on the lifting beam with hook 3 with bearing 2; The cover of dust 8 that covers bearing 2 is installed between step 10 and annular groove 7.
Cover of dust 8 is a cylindrical shape, and its upper end is provided with inside flange 9, and inside flange 9 is installed in the step 10 of hook nut 1, and the lower surface of inside flange 9 is resisted against on the upper surface of bearing 2; The lower end of cover of dust 8 is inserted in the annular groove 7 of lifting beam with hook 3.
The utility model is provided with independent cover of dust 8, and cover of dust 8 cover on tightly bearing 2 around, good airproof performance can prevent that impurity such as dust from getting into bearing 2 the insides, the service life of having improved bearing 2; The shirt rim around bearing has been cancelled in the lower end of hook nut 1; Cancelled the boss that matches with the shirt rim on the lifting beam with hook 3; Reduced to make the volume of the blank of hook nut 1 and lifting beam with hook 3, and reduced the difficulty of processing of these two parts, reduced the cost of suspension hook assembly.
Claims (3)
1. the dustproof construction of a suspension hook assembly; Comprise hook nut (1), bearing (2) and lifting beam with hook (3); Said bearing (2) is installed between said hook nut (1) and the said lifting beam with hook (3); It is characterized in that: the lower surface of said hook nut (1) directly is resisted against on the upper surface of said bearing (2); The outer circumference surface of said hook nut (1) lower end is provided with step (10), has the annular groove (7) coaxial with said bearing (2) on the said lifting beam with hook (3), and the cover of dust (8) that covers said bearing (2) is installed between said step (10) and the said annular groove (7).
2. according to the dustproof construction of the described suspension hook assembly of claim 1; It is characterized in that: said cover of dust (8) is cylindrical shape; Its upper end is provided with inside flange (9), and said inside flange (9) is installed in the said step (10), and the lower end of said cover of dust (8) is inserted in the said annular groove (7).
3. according to the dustproof construction of the described suspension hook assembly of claim 2, it is characterized in that: the lower surface of said inside flange (9) is resisted against on the upper surface of said bearing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238482 CN202609777U (en) | 2012-05-24 | 2012-05-24 | Dustproof structure for hook assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238482 CN202609777U (en) | 2012-05-24 | 2012-05-24 | Dustproof structure for hook assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202609777U true CN202609777U (en) | 2012-12-19 |
Family
ID=47343492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220238482 Withdrawn - After Issue CN202609777U (en) | 2012-05-24 | 2012-05-24 | Dustproof structure for hook assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202609777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674142A (en) * | 2012-05-24 | 2012-09-19 | 无锡市新华起重工具有限公司 | Dust prevention structure of hook assembly |
-
2012
- 2012-05-24 CN CN 201220238482 patent/CN202609777U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674142A (en) * | 2012-05-24 | 2012-09-19 | 无锡市新华起重工具有限公司 | Dust prevention structure of hook assembly |
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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: 20121219 Effective date of abandoning: 20140101 |
|
| RGAV | Abandon patent right to avoid regrant |