CN201544983U - Brake upper draw rod for railway wagon - Google Patents
Brake upper draw rod for railway wagon Download PDFInfo
- Publication number
- CN201544983U CN201544983U CN2009202775080U CN200920277508U CN201544983U CN 201544983 U CN201544983 U CN 201544983U CN 2009202775080 U CN2009202775080 U CN 2009202775080U CN 200920277508 U CN200920277508 U CN 200920277508U CN 201544983 U CN201544983 U CN 201544983U
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- CN
- China
- Prior art keywords
- draw rod
- pull bar
- drawhead
- draw
- hole
- 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 - Fee Related
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Abstract
The utility model relates to a brake upper draw rod for a railway wagon. The brake upper draw rod comprises a draw rod and two draw rod heads, and is characterized in that the draw rod is a reducing rod structure with the thin middle and two thick ends. One ends of the draw rod heads are provided with guiding blind holes along the axial direction, and are provided with weld application grooves which are communicated with the guiding blind holes from the lateral direction, the other ends of the draw rod heads are provided with through pin head plates, through pin holes are arranged on the through pin head plates, two ends of the draw rod are respectively plugged into the guiding blind holes of the two draw rod heads, the draw rod heads and the draw rods are laterally welded and connected, and sealant is coated among the end portions of the draw rod heads and the draw rods. The draw rods and the draw rod heads are both forging pieces. The brake upper draw rod not only improves intensity of components, but also avoids welding quality accidents.
Description
Technical field
The utility model relates to a kind of car brakeing parts, particularly about a kind of railway truck braking top rod.
Background technology
In recent years, the railway truck industry was in fast-developing period, the railway truck load carrying ability just from 70 tonnes to 80 tonnes, 100 tonnes transition.Along with the increase of load carrying ability, braking force of train must increase, and as this vital parts of top rod that transmits braking force, its intensity, reliability also are subjected to people's attention day by day.
Top rod is the vitals of brake system of rail vehicle, plays the effect of transmitting braking force when train braking.The top rod mode of operation as shown in Figure 1, top rod 1 one ends connect brake lever 2, the other end connects live truck lever 3, the braking force of brake cylinder 4 outputs is delivered to top rod 1 by brake lever 2 during car brakeing, top rod 1 links to each other with live truck lever 3 by round pin, live truck lever 3 is given brake shoe 5 with brake-force transmission again, and brake shoe friction wheel 6 produces braking.If top rod ruptures in braking procedure, then braking force can not pass to brake shoe, and vehicle loses braking potential, can't stop, and causes the traffic safety accident.
The existing top rod structure of using as shown in Figure 2, be by a round steel pull bar 7 that diameter is identical, respectively weld a plate 8 at two and form that pull bar 7 is the identical round steel of diameter, plate 8 is cut into by the imitative type of steel plate, be welded on the pull bar two ends, there is following problem in this structure: a plate is welded on the pull bar, and its structural stability is poor, technology is coarse, two plate parallelism is relatively poor, and the pin-and-hole right alignment is poor, assembling difficulty when causing whole entrucking to assemble; Because weld defect causes pull bar to fracture at weld easily, in operational process, also find to have the phenomenon of fracture.In order to better meet the heavily stressed requirement of railway truck, it is imperative to change the top rod structure.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to propose the railway truck of a kind of its intensity of effective raising and reliability with braking top rod.
For achieving the above object, the utility model is taked following technical scheme: a kind of railway truck comprises a pull bar and two drawheads with the braking top rod, it is characterized in that: described pull bar is the thick gradual change rod shaped structures in middle thin two ends; End at described drawhead offers the guiding blind hole vertically, and offers the welding groove that communicates with the blind hole that leads at this end from side direction, and the other end of described drawhead has pinned hole, and described pinned hole is at least one; Described pull bar two ends are inserted into respectively in the guiding blind hole of two described drawheads, by being welded to connect, scribble sealant in the gap, outer end of described guiding blind hole and described pull bar between the backlash of described guiding blind hole and described pull bar.
Described pull bar and drawhead are Forging Parts.
Described drawhead has an end of pinned hole and can be made up of two parallel jag plates, and correspondence is provided with one or more pairs of pinned holes on the described two jag plates, and each all adopts once brill system technology to make to pinned hole.
The utility model is owing to take above technical scheme, and it has the following advantages: 1, the utility model is owing to adopt middle thin, a thick gradually deformed rod structure in two ends, and bearing capacity is big, and tensile strength improves greatly.2, the utility model is owing to adopt to offer blind hole on drawhead, and drawhead is pegged graft with pull bar earlier, and then the mode by repair welding, sealing, strengthen its connectivity robustness, simultaneously only in the side welding,, avoided weld defect cause the fractureing generation of phenomenon in the end welding.3, on drawhead, offer the welding groove, make the side convenient welding.4, the other end of drawhead is made jag shape structure, makes drawhead conveniently articulate with brake lever or live truck lever.The utility model so designs, and has both improved part strength, has avoided the welding quality accident again.
Description of drawings
Fig. 1 is the top rod working state schematic representation
Fig. 2 is former top rod structural representation
Fig. 3 is the utility model structural representation
Fig. 4 is the utility model Tiebar structure scheme drawing
Fig. 5 is the utility model drawhead structural representation
Fig. 6 is the birds-eye view of Fig. 5
Fig. 7 is the A-A cross-sectional schematic of Fig. 3
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 3, a kind of top rod that the utility model provides, its structure is to be made up of a pull bar 10 and two drawheads 11.As shown in Figure 4, pull bar 10 adopts Diameter Gradual Change shape structure, and middle thin, two ends are thick, and at both ends and drawhead 11 bonded assembly position enlarged diameter can improve Joint strenght like this, have guaranteed and drawhead bonded assembly reliability.
Shown in Fig. 5～6, axially offer the guiding blind hole 12 of installation pull bar at an end of drawhead 11, and, offer the welding groove 13 that communicates with the blind hole 12 that leads from side direction at this end.The other end of drawhead 11 is pin head plate 14 forms of wearing, and offers pinned hole wearing on the pin head plate 14, and pinned hole can be for one or more.Wearing pin head plate 14 is used for being connected with brake lever or live truck lever.Wearing pin head plate 14 better forms is: it is made up of two parallel jag plates, and correspondence offers one or more pairs of pinned holes on two jag plates.
As Fig. 3, shown in Figure 7, pull bar 10 is inserted in the guiding blind hole 12 of drawhead, and by 13 weldings of welding groove, with pull bar 10 and drawhead 11 weld togethers.Pull bar 10 and the vacant gap of guiding blind hole 12 side direction have guaranteed the Joint strenght of pull bar and drawhead by being welded to connect.But in order to prevent that pull bar from producing weld defect and fracture at weld, meanwhile, also be in order to prevent that steam from entering drawhead and producing corrosion, therefore not weld, and smear sealant and seal in the lead end of blind hole of drawhead in the end that pull bar contact with drawhead.
Among the last embodiment, pull bar 10 all adopts integrate forging process to make with drawhead 11, has increased structural strength, has improved presentation quality.
Among the last embodiment, arbitrary on the same drawhead adopts once the system of boring technology to make to pinned hole, guaranteed right alignment, is convenient to installation.
During installation, two drawheads are assembled in the two ends of pull bar respectively, and welding, gluing.The assembling angle of drawhead is decided with the angle that brake lever or live truck lever are connected on it.
Claims (5)
1. a railway truck comprises a pull bar and two drawheads with the braking top rod, it is characterized in that: described pull bar is the thick gradual change rod shaped structures in middle thin two ends;
End at described drawhead offers the guiding blind hole vertically, and offers the welding groove that communicates with the blind hole that leads at this end from side direction, and the other end of described drawhead has pinned hole; The other end of described drawhead is to wear pin head plate, and described wearing on the pin head plate offers pinned hole;
Described pull bar two ends are inserted into respectively in the guiding blind hole of two described drawheads, by being welded to connect, scribble sealant in the crest clearance of described guiding blind hole and described pull bar between the backlash of described guiding blind hole and described pull bar.
2. a kind of railway truck as claimed in claim 1 is with braking top rod, and it is characterized in that: described pull bar and drawhead are Forging Parts.
3. a kind of railway truck as claimed in claim 1 or 2 is with braking top rod, and it is characterized in that: described drawhead has an end of pinned hole and is made up of two parallel jag plates, and correspondence is provided with described pinned hole on the described two jag plates.
4. a kind of railway truck as claimed in claim 1 or 2 is with braking top rod, and it is characterized in that: described pinned hole is at least one.
5. a kind of railway truck as claimed in claim 3 is with braking top rod, and it is characterized in that: the pinned hole on the described two jag plates is at least a pair of, and each all adopts once brill system technology to make to pinned hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202775080U CN201544983U (en) | 2009-11-20 | 2009-11-20 | Brake upper draw rod for railway wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202775080U CN201544983U (en) | 2009-11-20 | 2009-11-20 | Brake upper draw rod for railway wagon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201544983U true CN201544983U (en) | 2010-08-11 |
Family
ID=42600147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202775080U Expired - Fee Related CN201544983U (en) | 2009-11-20 | 2009-11-20 | Brake upper draw rod for railway wagon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201544983U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104417581A (en) * | 2013-08-21 | 2015-03-18 | 齐齐哈尔轨道交通装备有限责任公司 | Hand braking guide device, hand braking device and railway vehicle |
| CN105537829A (en) * | 2015-12-28 | 2016-05-04 | 南车二七车辆有限公司 | Flexible positioning and assembling device for pull rod assembly for wagon and application method of flexible positioning and assembling device |
-
2009
- 2009-11-20 CN CN2009202775080U patent/CN201544983U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104417581A (en) * | 2013-08-21 | 2015-03-18 | 齐齐哈尔轨道交通装备有限责任公司 | Hand braking guide device, hand braking device and railway vehicle |
| CN105537829A (en) * | 2015-12-28 | 2016-05-04 | 南车二七车辆有限公司 | Flexible positioning and assembling device for pull rod assembly for wagon and application method of flexible positioning and assembling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20181120 |