CN201922225U - Press mounting device for main shaft of switch machine - Google Patents
Press mounting device for main shaft of switch machine Download PDFInfo
- Publication number
- CN201922225U CN201922225U CN2010206539662U CN201020653966U CN201922225U CN 201922225 U CN201922225 U CN 201922225U CN 2010206539662 U CN2010206539662 U CN 2010206539662U CN 201020653966 U CN201020653966 U CN 201020653966U CN 201922225 U CN201922225 U CN 201922225U
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- CN
- China
- Prior art keywords
- screw rod
- main shaft
- press
- press mounting
- switch machine
- 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 press mounting device for the main shaft of a switch machine. The press mounting device for the main shaft of the switch machine comprises locating detents, a support housing, a rear cover, a gear pair, a manual shaft, a screw rod sleeve, a screw rod, a holding screw rod and a press mounting plate, and is characterized in that three locating detents are arranged at the front end of the support housing; the support housing and the rear cover form a cylindrical box body; the press mounting plate is connected with the screw rod through screw threads; the screw rod sleeve and the screw rod form a spiral transmission pair; screw rod key grooves are formed on two sides of the screw rod and matched with a guide sleeve in the position of the rear cover; the screw rod sleeve is in key connection with a gearwheel; the manual shaft is in key connection with a pinion wheel; the gearwheel and the pinion wheel are two reciprocal deflection involute cylindrical modified gears which form the gear pair; and the holding screw rod is positioned on two sides of the press mounting plate and mounted on the support housing, and is matched with the internal threads at two places on the casing body of the switch machine. The press mounting device for the main shaft of the switch machine has a small volume, is light in weight and strong in output tensile force, has a simple structure and is simple and convenient to operate.
Description
Technical field
The utility model belongs to railway equipment manufacturing technology field, relates in particular to a kind of goat main shaft press-loading apparatus.
Background technology
At present, goat has been distributed on domestic each bar railway service main widely as the track switch conversion equipment.Because railway delivery pressure is big, causes goat to act frequently, the part parts are in state of wear for a long time, and this just requires goat is carried out periodic inspection.Wherein the goat of part maintenance requires its main shaft is dismantled and assembled, and collar bush and goat casing adopt tight fit, depending merely on manually to assemble up wastes time and energy, this device that just needs a cover can the underworker to assemble main shaft improves the efficient of goat maintenance, and goat main shaft press-loading apparatus is invented for addressing this problem.Yet defectives such as early stage goat main shaft press-loading apparatus often exists that volume is big, Heavy Weight and power output deficiency have influenced the overhaul efficiency of goat.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of volume is little, in light weight, output pulling force main shaft press-loading apparatus big, simple in structure and easy and simple to handle.
The technical scheme that the utility model is taked is:
A kind of goat main shaft press-loading apparatus comprises locating detent 1, support shell 5, bonnet 6, gear pair, manual axle 9, screw rod cover 3, screw rod 7, tightening screw rod 4 and press-fits dish 2 that it is characterized in that: the support shell front end is provided with 3 locating detents; Form the column type casing by support shell and bonnet; Press-fiting dish is connected with screw rod by screw thread; The screw rod cover is formed the worm drive pair with screw rod, is shaped on screw rod keyway 71 in the both sides of screw rod, matches with the fairlead 61 at bonnet place; Fairlead is packed in the bonnet afterbody, is shaped on the anti-rotation feather key that is complementary with keyway on the fairlead; Screw rod cover and gear wheel 8 are connected by key, manually spool are connected by key with pinion 10, and large and small gear is two involute cylindrical gears such as displacement such as grade, forms described gear pair; The tightening screw rod be positioned at press-fit the dish both sides be installed on the support shell, by the screw thread of its front end and two place's screw-internal thread fit on the goat casing.
Further, described gear pair modulus is 1.5, and wherein pinion 10 adopts normal shift, the number of teeth 12, and gear wheel 8 adopts negative addendum modification, the number of teeth 59, gearratio is 5: 1.
Further, described manual shaft end is cuboid.
The beneficial effects of the utility model are:
The utility model step-up system adopts involute cylinder profile modified gear decelerator, compares with Related product in the past, and its speed reducing ratio has had significantly and improves; Load transfer device adopts screw rod cover and screw rod to form the worm drive pair, and torque axis is changed to straight line force output, and principle is simple, and part is easy to processing; The method that the anti-rotation guider of screw rod all adopts the key of casing to match with the screw rod keyway, structure are compact more, and intensity is higher; Rear cover material adopts the lighter aluminium of quality, has alleviated installation weight.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a left view of the present utility model
Fig. 3 is that the AA of Fig. 2 is to cutaway view
Wherein:
1, locating detent 61, fairlead
2, press-fit dish 7, screw rod
3, screw rod cover 71, keyway
4, tightening screw rod 8, gear wheel
5, support shell 9, manual axle
6, bonnet 10, pinion
The specific embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
As shown in Figure 1, 2, 3, the utility model primary structure comprises locating detent 1, support shell 5, bonnet 6, gear pair, manual axle 9, screw rod cover 3, screw rod 7, tightening screw rod 4 and press-fits dish 2 etc.
" three-jaw " design that the support shell front end is made up of 3 locating detents, " three-jaw " external diameter is Φ 136.5, and the gap between the counterbore internal diameter of goat casing is approximately 0.25mm, " three-jaw " plays the assist location effect; The bonnet aluminium of press-loading apparatus is a material, to alleviate its weight; Gear pair waits the displacement involute cylindrical gear to form by two, and modulus is 1.5, and wherein pinion 10 adopts normal shift, the number of teeth 12, and gear wheel 8 adopts negative addendum modification, the number of teeth 59, gearratio is 5: 1; Manually shaft end is processed into cuboid, so that electric wrench is imported as power source; The screw rod cover is formed the worm drive pair with screw rod, the rotation of screw rod cover, and screw axial moves, and for preventing the screw rod rotation, at the both sides of screw rod keyseat 71, cooperates with two anti-rotation feather keys of the fairlead 61 that is arranged in the bonnet place, can guarantee the screw rod rectilinear motion; Tightening screw rod 4 plays the effect of support by the screw thread of its front end and two place's screw-internal thread fit on the goat casing; Press-fiting dish is connected with screw rod by screw thread.During work, directly twist manually axle with electric wrench, the moment of torsion that electric wrench produces through speed reducing gear pair and worm drive pair after, be delivered to via screw rod and press-fit on the dish, produce pressure (theoretical pressure can reach about 90kN), thereby main shaft is pressed in the goat casing.
Goat main shaft press-loading apparatus of the present utility model owing to adopt above-mentioned structural design, has realized that volume is little, in light weight, power output is big, target such as easy and simple to handle simple in structure.
Claims (3)
1. a goat main shaft press-loading apparatus comprises locating detent, support shell, bonnet, gear pair, manual axle, screw rod cover, screw rod, tightening screw rod and press-fits dish, and it is characterized in that: the support shell front end is provided with 3 locating detents; Form the column type casing by support shell and bonnet; Press-fiting dish is connected with screw rod by screw thread; The screw rod cover is formed the worm drive pair with screw rod, is shaped on the screw rod keyway in the both sides of screw rod, matches with the fairlead at bonnet place; Fairlead is packed in the bonnet afterbody, is shaped on the anti-rotation feather key that is complementary with keyway on the fairlead; The screw rod cover is connected by key with gear wheel, and manually axle is connected by key with pinion, and large and small gear is two and waits the displacement involute cylindrical gear, forms described gear pair; The tightening screw rod be positioned at press-fit the dish both sides be installed on the support shell, by the screw thread of its front end and two place's screw-internal thread fit on the goat casing.
2. goat main shaft press-loading apparatus according to claim 1 is characterized in that: described gear pair modulus is 1.5, and wherein pinion adopts normal shift, the number of teeth 12, and gear wheel 8 adopts negative addendum modification, the number of teeth 59, gearratio is 5: 1.
3. goat main shaft press-loading apparatus according to claim 1 is characterized in that: described manual shaft end is cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206539662U CN201922225U (en) | 2010-12-12 | 2010-12-12 | Press mounting device for main shaft of switch machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206539662U CN201922225U (en) | 2010-12-12 | 2010-12-12 | Press mounting device for main shaft of switch machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201922225U true CN201922225U (en) | 2011-08-10 |
Family
ID=44426094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206539662U Expired - Lifetime CN201922225U (en) | 2010-12-12 | 2010-12-12 | Press mounting device for main shaft of switch machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201922225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576883A (en) * | 2019-10-16 | 2019-12-17 | 太原市京丰铁路电务器材制造有限公司 | Locking indication rod for point switch and point switch |
-
2010
- 2010-12-12 CN CN2010206539662U patent/CN201922225U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576883A (en) * | 2019-10-16 | 2019-12-17 | 太原市京丰铁路电务器材制造有限公司 | Locking indication rod for point switch and point switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN RAILWAY SIGNAL CO., LTD. Free format text: FORMER NAME: TIANJIN RAILWAY SIGNAL FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 300300 Tianjin city Dongli District Road No. 1199 a Patentee after: Tianjin Railway Signal Co., Ltd. Address before: 300300 No. 1, Tianjin Road, Dongli, China Patentee before: Tianjin Railway Signal Factory |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110810 |