CN203792269U - Handling tool for round nut of gear shaft - Google Patents
Handling tool for round nut of gear shaft Download PDFInfo
- Publication number
- CN203792269U CN203792269U CN201420140253.4U CN201420140253U CN203792269U CN 203792269 U CN203792269 U CN 203792269U CN 201420140253 U CN201420140253 U CN 201420140253U CN 203792269 U CN203792269 U CN 203792269U
- Authority
- CN
- China
- Prior art keywords
- gear shaft
- round nut
- column
- shaft
- connecting rod
- 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- Withdrawn - After Issue
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a handling tool for a round nut of a gear shaft. The handling tool comprises a brake clamp and a mounting and demounting clamp. A positioning shaft (4) of the brake clamp is fixedly mounted at one end of an upright (2) and is provided with a male spline matched with a female spline of the gear shaft (3), the other end of the upright (2) is mounted on a base (1), the upright (2) can extend to the inner side of the gear shaft (3) from the bottom, and the male spline of the positioning shaft (4) is meshed with the female spline of the gear shaft (3); a spanner (6) of the mounting and demounting tool is matched with the outer contour of the round nut (8) and is fixedly connected with the same, and a torque multiplier is fixedly mounted on a connecting rod (7). The handling tool is simple in principle, convenient to operate and reliable in use, the round nut can be locked and demounted safely and conveniently without being damaged, and operational reliability of the round nut can be guaranteed.
Description
Technical field
A kind of handling instrument that the utility model relates to, especially a kind of handling instrument of gear shaft round nut.
Background technology
In helicopter reducer, exist some rotating speed high, bear larger axis to the gear shaft of load, adopt round nut and stop washer to lock its bearing reliability better.As shown in Figure 1, be the gear shaft structure of certain helicopter, gear is fixed on the shaft shoulder of axle by interference fit; There is internal spline gear shaft top, and the outer shaft shoulder place of close end face is bearing fit face, and the other end of bearing passes through screw-threaded coupling with round nut.As shown in Figure 2, inner headed face has screw thread to the structure of round nut, screws mutually with gear shaft end thread, and round nut, with 4 lugs, has screwed hole on lug, the convenient round nut check plate of settling.Because round nut matches with the external screw thread of gear shaft end, and require round nut to have large screw-down torque, therefore when dismounting, need larger moment of torsion, due to the structural limitations of round nut, by conventional means, very easily cause round nut surface tear or cause round nut to damage because of moment inequality, the reliability that impact is used, therefore needs specific purpose tool to assemble and dismantles.
Summary of the invention
The utility model object is to provide a kind of handling instrument of gear shaft round nut of special use, makes round nut lock and to dismantle safely, easily, and round nut is not sustained damage, and guarantees the dependability of round nut.
The technical solution of the utility model is, the handling instrument of described gear shaft round nut comprises two parts: brake clamp and mounting or dismounting fixture, brake clamp comprises base, column, locating shaft, described locating shaft is fixedly mounted on column one end and is provided with the external splines matching with gear shaft internal spline, the column other end is arranged on base, and column can reach from bottom gear shaft inside, gear shaft lower bottom seated connection touches, the external splines on locating shaft and the engagement of gear shaft internal spline; Mounting or dismounting fixture comprises spanner, connecting rod, torque multiplier, and described spanner matches and merges and be fixedly connected with round nut exterior contour, is installed with torque multiplier on connecting rod.Described base and column, spanner and connecting rod are by being welded to connect; On column, be provided with square groove and match with the square projection on locating shaft; On connecting rod, be provided with square groove, and match with torque multiplier; On locating shaft, be provided with handle.
The spanner that the utility model matches with round nut exterior contour by design, in cargo handling process, by the lug on round nut, can make round nut uniform stressed, has avoided scuffing and the damage of round nut; Brake clamp can be in operating process brake tooth wheel shaft, thereby can guarantee that round nut can be unclamped by easier screwing.The utility model principle is simple, easy to operate, uses reliably, has realized round nut safety, has locked and dismantle easily, and round nut is not sustained damage, and guarantees the dependability of round nut.
Accompanying drawing explanation
Fig. 1 is helicopter gear shaft structure schematic diagram;
Fig. 2 is the structural representation of round nut;
Fig. 3 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 3, the handling instrument of gear shaft round nut comprises two parts: brake clamp and mounting or dismounting fixture, brake clamp comprises base 1, column 2, locating shaft 4, described locating shaft 4 is fixedly mounted on column 1 one end and is provided with the external splines matching with gear shaft 3 internal splines, column 2 other ends are arranged on base 1, and column 2 can reach from bottom gear shaft 3 inside, gear shaft 3 bottom base 1 contacts, the external splines on locating shaft 4 and gear shaft 3 internal spline engagements; Mounting or dismounting fixture comprises spanner 6, connecting rod 7, torque multiplier, and described spanner 6 matches and merges and be fixedly connected with round nut 8 exterior contours, on connecting rod 7, is installed with torque multiplier.Described base 1 and column 2, spanner 6 and connecting rod 7 are by being welded to connect; On column 2, be provided with square groove and match with the square projection on locating shaft 4; On connecting rod 7, be provided with square groove, and match with torque multiplier; On locating shaft 4, be provided with handle 5.
In use, first the brake clamp upper pillar stand 2 of the handling instrument of gear shaft round nut is reached to gear shaft 3 inside from bottom, make gear shaft 3 bottom base 1 contacts, simultaneously the external splines on locating shaft 4 and gear shaft 3 internal spline engagements; The spanner 6 that puts mounting or dismounting fixture on round nut 8, applies torsional forces by torque multiplier, completes the loading and unloading of round nut 8.
Claims (5)
1. the handling instrument of a gear shaft round nut, it is characterized in that, described handling instrument comprises two parts: brake clamp and mounting or dismounting fixture, brake clamp comprises base (1), column (2), locating shaft (4)), described locating shaft (4) is fixedly mounted on column (1) one end and is provided with the external splines matching with gear shaft (3) internal spline, column (2) other end is arranged on base (1), and column (2) can reach from bottom gear shaft (3) inside, gear shaft (3) bottom base (1) contact, external splines on locating shaft (4) and the engagement of gear shaft (3) internal spline, mounting or dismounting fixture comprises spanner (6), connecting rod (7), torque multiplier, and described spanner (6) matches and merges and be fixedly connected with round nut (8) exterior contour, and connecting rod is installed with torque multiplier on (7).
2. the handling instrument of gear shaft round nut as claimed in claim 1, is characterized in that, described base (1) and column (2), spanner (6) and connecting rod (7) are by being welded to connect.
3. the handling instrument of gear shaft round nut as claimed in claim 1, is characterized in that, is provided with square groove and matches with the square projection on locating shaft (4) on described column (2).
4. the handling instrument of gear shaft round nut as claimed in claim 1, is characterized in that, described connecting rod is provided with square groove on (7), and matches with torque multiplier.
5. the handling instrument of gear shaft round nut as claimed in claim 1, is characterized in that, is provided with handle (5) on described locating shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140253.4U CN203792269U (en) | 2014-03-26 | 2014-03-26 | Handling tool for round nut of gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140253.4U CN203792269U (en) | 2014-03-26 | 2014-03-26 | Handling tool for round nut of gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203792269U true CN203792269U (en) | 2014-08-27 |
Family
ID=51374535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420140253.4U Withdrawn - After Issue CN203792269U (en) | 2014-03-26 | 2014-03-26 | Handling tool for round nut of gear shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203792269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878743A (en) * | 2014-03-26 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Assembling and disassembling tool for gear shaft round nut |
-
2014
- 2014-03-26 CN CN201420140253.4U patent/CN203792269U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878743A (en) * | 2014-03-26 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Assembling and disassembling tool for gear shaft round nut |
| CN103878743B (en) * | 2014-03-26 | 2015-12-02 | 哈尔滨东安发动机（集团）有限公司 | A kind of handling instrument of gear shaft round nut |
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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: 20140827 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |