CN202290253U - Self-pressing and self-pulling device of large-size expansion sleeve - Google Patents
Self-pressing and self-pulling device of large-size expansion sleeve Download PDFInfo
- Publication number
- CN202290253U CN202290253U CN2011203984220U CN201120398422U CN202290253U CN 202290253 U CN202290253 U CN 202290253U CN 2011203984220 U CN2011203984220 U CN 2011203984220U CN 201120398422 U CN201120398422 U CN 201120398422U CN 202290253 U CN202290253 U CN 202290253U
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- gland
- expansion set
- self
- expension cap
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a self-pressing and self-pulling device of a large-size expansion sleeve. The self-pressing and self-pulling device comprises an inner expansion sleeve (5), an outer expansion sleeve (4), an expansion sleeve gland (7) and an expansion sleeve outer gland (2), wherein the outer expansion sleeve (4) is matched with the inner expansion sleeve (5); the inner expansion sleeve (5) is provided with a plurality of claw parts (9); the expansion sleeve gland (7) is provided with a gland (1), a plurality of claw parts (8) and a central hole (10); and the outer expansion sleeve (4) is fixed on an equipment shell (3) by the expansion sleeve outer gland (2). According to the self-pressing and self-pulling device, the expansion sleeve gland (1) is connected to a shaft (6) by using a bolt, and the inner expansion sleeve (5) and the outer expansion sleeve (4) can be tightly pressed through a pressing block (1) on the expansion sleeve gland; the inner expansion sleeve (7) can be quickly pulled out of the outer expansion sleeve (4) through the claw parts (8) of the expansion sleeve gland and the claw parts (9) of the inner expansion sleeve which are mutually buckled; the expansion sleeve gland (1) is used as not only a pressing device of the inner expansion sleeve (7) but also a pulling device of the inner expansion sleeve (7); and thus, the assembly and disassembly are facilitated, a special auxiliary clamp is not required, the mounting efficiency and the maintenance efficiency of equipment are greatly improved, and the equipment cost is reduced.
Description
Affiliated technical field
The utility model relates to compressing certainly from pull-up of a kind of large scale expansion set, and the expansion set that relates in particular to a kind of vertical roller grinder rocker arm shaft compresses and rise the technology of pulling out.
Background technology
The situation that plant equipment often has axle and hole to be used; Expansion set is as a kind of connected mode in axle and hole; Have bearing capacity height and the good advantage of resistance to shock loads performance are arranged, but loading and unloading are inconvenient, especially the dismounting for the large scale expansion set seems difficult especially; Generally need utilize specific purpose tool or special process conditions could expansion set be extracted, waste many manpower and materials and time.
Along with roller type vertical mill constantly towards the development of maximizing; Its rocker arm shaft also constantly increases lengthening; the shock loading that rocker arm shaft receives in equipment running process is also bigger, therefore needs bigger pretightning force that the inner expension cap outer expansion set of packing into could be guaranteed the normal operation of equipment, still when maintenance of equipment; the dismounting of expansion set is difficult with regard to very, generally adopts special fixture could inner expension cap be extracted from outer expansion set.Its method utilizes inner expension cap end-face helical hole to be fixed on special fixture on the inner expension cap for earlier jack being fixed on the special fixture, utilizes jack that inner expension cap is taken out at last.This method need be used special auxiliary clamp, and screwed hole receives the restriction of inner expension cap wall thickness very little usually, can cause inner expension cap to work unbalance stress when pulling out, and inside and outside expansion set taper seat damages.
Summary of the invention
The purpose of the utility model is under the situation that guarantees concentricity; With expansion set gland (7) both as the hold down gag of inner expension cap (5), the pull-up when removing as inner expension cap (5) again, simple in structure; Convenient disassembly; Remove to the special expansion set of vertical roller grinder outfit rises and pull out anchor clamps, practice thrift cost of equipment maintenance, improve maintenance efficiency.
The utility model is formed by establishing the outer gland (2) of inner expension cap (5), the outer expansion set (4) that cooperates with inner expension cap (5), expansion set gland (7) and expansion set.
Inner expension cap (5) rear end is provided with some claws to inner process (9); Space (11) between each claw (9) can make the claw (8) of expansion set gland (7) insert inner expension cap (5) inside, the claw (8) that inserts the claw (9) that can make inner expension cap after inner expension cap (5) inside rotates to an angle and expansion set gland when the claw (8) of expansion set gland each other button and.
The inner surface of the front end outer surface of inner expension cap (5) and outer expansion set (4) is taper seat, and two taper seat taperings are consistent, and inner expension cap (5) and outer expansion set (4) are cooperated through taper seat.
Inner expension cap (5) has a seam (12) along axis direction, and making the pretension between the inside and outside expansion set is the elasticity pretension.
Expansion set gland (7) front end is provided with some claws to outer process (8), and a screwed hole (17) is respectively arranged on each claw (8), and this is perhaps to utilize bolt directly to extract inner expension cap (5) in order jack to be installed when the outer expansion set (4) of dismounting.
All there is a through hole (16) gap (15) between each claw (8) of expansion set gland (7), and the rear end is provided with circular briquetting (1), and this is for when expansion set is installed, and connects expansion set gland (7) and axle (6) through bolt, compresses inner expension cap (5) behind the pretension bolt.
The center of expansion set gland (7) has centre bore (10), and this is in order to push up axle (6) end face at the push rod that works jack (18) when pulling out inner expension cap (5).
According to above-mentioned technical scheme, the utlity model has following beneficial effect:
1, the utility model will compress with pull-up and all be integrated on the expansion set gland, and will be reasonable in design, simple in structure, and convenient disassembly need not to pull out anchor clamps for the special expansion set of vertical roller grinder outfit rises, and has improved the maintenance efficiency of loading and unloading, has practiced thrift cost.
2, cooperating at inside and outside expansion set is not can directly outer expansion set be extracted from inner expension cap through the screwed hole on the expansion set gland with bolt under the very tight situation, need not jack and assists.
3, it is big to utilize expansion set gland in the utility model to compress and rise when pulling out inner expension cap contact area, stressed evenly, protected inside and outside expansion set taper seat effectively.
Description of drawings
Fig. 1 is the utility model assembly structure figure.
Structure chart when Fig. 2 pulls out inner expension cap for the utility model rises.
Fig. 3 is the inner expension cap right view.
Fig. 4 is the inner expension cap front view.
Fig. 5 is the half sectional view of outer expansion set.
Fig. 6 is an expansion set gland front view.
The specific embodiment
Be that embodiment combines accompanying drawing that the utility model is further detailed with the vertical roller grinder rocking arm below.
Fig. 1 is the utility model assembly structure figure, and is as shown in Figure 1, and 1 is the briquetting of expansion set gland; 2 is the outer gland of expansion set, and 3 is vertical roller grinder rocking arm housing, and 4 is outer expansion set; 5 is inner expension cap, and 6 is axle, and 7 is the expansion set gland; 8 is the claw of expansion set gland, and 9 is the claw of inner expension cap, and 10 is the centre bore of expansion set gland.
When outer expansion set (4) is installed; At first outer expansion set (4) is installed on the housing (3), then inner expension cap (5) is packed in the outer expansion set (4) vertically, again the claw (8) of inner expension cap gland is aimed at space (15) between the outer expansion set claw and pack in the claw (9) of inner expension cap; Use bolt the expansion set gland to be connected on the axle (6) through the screwed hole on through hole on the expansion set gland (16) and the axle (6); Pretension bolt, the pressure through the expansion set gland fast (1) compresses inner expension cap (5), and the thrust of inner expension cap can be by the pretightning force control of bolt; At last the outer gland (2) of expansion set is covered, with fixing outer expansion set.
When dismantling outer expansion set (4), as shown in Figure 2, remove the bolt that is used to compress inner expension cap (5) earlier; Utilize the screwed hole (17) of inner expension cap gland that jack is installed on the expansion set gland (7); Rotate expansion set gland (7) certain angle then, make claw (9) alignment and mutual fastening of the claw (8) and the inner expension cap of expansion set gland, regulate jack (18) and make its push rod roof pressure axial end; Progressively outer expansion set (4) is extracted from inner expension cap (5), taken off outer expansion set gland (2) at last and can take out outer expansion set (4).If the expansion set diameter that relates to is little, the thrust of perhaps inside and outside expansion set is little, can not use jack (18), directly pushes up axle (6) end face with the screwed hole of bolt through expansion set, and constantly swivel bolt equably in expansion set is extracted inner expension cap (4).
Claims (2)
1. a large scale expansion set is from compressing from pull-up, it is characterized in that said outside pull-up comprises inner expension cap (5), the outer expansion set (4) that cooperates with inner expension cap (5), expansion set gland (7) and expansion set gland (2) composition; Said inner expension cap (5) rear end is provided with some claws to inner process (9), and the front end outer surface is provided with taper seat (13), and whole inner expension cap has one crack (12) along axis direction; Said outer expansion set inner surface is provided with taper seat (14); Said expansion set gland (7) front end is provided with some claws to outer process (8), and the rear end is provided with circular briquetting (1), and the middle part is provided with centre bore (10).
2. as claimed in claim 1 from pull-up, it is characterized in that each claw of described inner expension cap gland (1) is provided with screwed hole (17), be provided with through hole (16) between adjacent two claws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203984220U CN202290253U (en) | 2011-10-11 | 2011-10-11 | Self-pressing and self-pulling device of large-size expansion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203984220U CN202290253U (en) | 2011-10-11 | 2011-10-11 | Self-pressing and self-pulling device of large-size expansion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202290253U true CN202290253U (en) | 2012-07-04 |
Family
ID=46359236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203984220U Expired - Lifetime CN202290253U (en) | 2011-10-11 | 2011-10-11 | Self-pressing and self-pulling device of large-size expansion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202290253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837893A (en) * | 2017-11-17 | 2018-03-27 | 中材（天津）粉体技术装备有限公司 | Rocker arrangement is connected quickly to be risen with self-locking with Burnisher apparatus pulls out expanding sleeve device |
-
2011
- 2011-10-11 CN CN2011203984220U patent/CN202290253U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837893A (en) * | 2017-11-17 | 2018-03-27 | 中材（天津）粉体技术装备有限公司 | Rocker arrangement is connected quickly to be risen with self-locking with Burnisher apparatus pulls out expanding sleeve device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |