CN201882109U - Hand braking draw bar assembly for wagon - Google Patents
Hand braking draw bar assembly for wagon Download PDFInfo
- Publication number
- CN201882109U CN201882109U CN2010206645943U CN201020664594U CN201882109U CN 201882109 U CN201882109 U CN 201882109U CN 2010206645943 U CN2010206645943 U CN 2010206645943U CN 201020664594 U CN201020664594 U CN 201020664594U CN 201882109 U CN201882109 U CN 201882109U
- Authority
- CN
- China
- Prior art keywords
- pull bar
- draw bar
- drawhead
- brake lever
- parking brake
- 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 hand braking draw bar assembly for a wagon. The hand braking draw bar assembly consists of a draw bar head, a draw bar and a draw bar tail plate, and is characterized in that an installation guide hole is arranged in one end of the draw bar head, connected with the draw bar; welding holes are arranged in two sides of a body of the draw bar head, corresponding to the installation guide hole, and are opposite to each other in 180 degrees; the draw bar penetrates in the installation guide hole of the draw bar head; and the draw bar and the draw bar head are welded together through the welding holes. The hand braking draw bar assembly can effectively improve the strength and the reliability of a hand braking draw bar.
Description
Technical field
The utility model relates to a kind of railway truck and forms with parking brake lever.
Background technology
Chinese Railway is in fast-developing gold period in recent years.Accelerating development the railway modernization process, when improving running velocity, increase vehicle load, the operation security of vehicle also is subjected to people's attention day by day.Brake system is as the basis of support vehicles safe operation, and its stability, reliability can not be ignored.Train during handling goods, moves for preventing vehicle on station track, adopts hand brake device that train is braked.Parking brake lever is the vital parts of hand brake device, plays the effect of transmitting braking force, and its intensity, reliability are related to the validity of hand braking effect.
Parking brake lever is the vitals of brake system of rail vehicle, carries out playing when hand braking the effect of transmitting braking force at train.Carrying out when hand braking, manpower is given parking brake lever by rotation hand brake handwheel with brake-force transmission, and parking brake lever is connected with front brake lever, amplifies braking force by leverage, and power is passed to brake shoe, the brake shoe wheel generation brake action that rubs.If parking brake lever ruptures in braking procedure, then can not transmit braking force, vehicle loses braking potential, can't stop, and just can cause safety misadventure.
Traditional parking brake lever is made up of pull bar 1, two drawhead plates 2 and a pull bar tailgate 3 as shown in Figure 1, and pull bar 1 is the round steel of a single diameter, and two drawhead plates 2 are welded on an end of pull bar 1, and drawhead plate 2 is to be cut into by the imitative type of steel plate.Pull bar tailgate 3 is welded on the other end of pull bar 1, also is to be cut into by the imitative type of steel plate.There is following problem in the structure of this kind parking brake lever: 1, drawhead plate 2 is welded on the pull bar 1, because the diameter of pull bar 1 is thinner, the weld seam between pull bar 1 and the drawhead plate easily cracks, and causes pull bar to fracture at weld easily; 2, owing to welding deformation, the planeness of two drawhead plates 2 is difficult to control, exists parallelism relatively poor, and the pin-and-hole right alignment is difficult for the problem of assurance, assembles difficulty when causing whole entrucking to assemble.Therefore traditional parking brake lever exists structural stability poor, the problem that technology is coarse, and in order to better meet the heavily stressed requirement of railway truck, the structure that changes parking brake lever is imperative.
Summary of the invention
At the problems referred to above, main purpose of the present utility model is to provide a kind of railway truck to form with parking brake lever, and it can effectively improve the intensity and the reliability of parking brake lever.
For achieving the above object, a kind of railway truck provided by the utility model is formed with parking brake lever, form by drawhead, pull bar and pull bar tailgate, it is characterized in that: the end that described drawhead connects described pull bar is provided with an installation pilot hole, the body portion both sides of the corresponding described installation pilot hole of described drawhead respectively are provided with a welding hole for relative 180 °, described pull bar penetrates in the installation pilot hole of described drawhead, and described pull bar and described drawhead are by described welding hole weld together.
Described pull bar adopts the Diameter Gradual Change structure, with the diameter of described drawhead bonded assembly one end greater than with the diameter of described pull bar tailgate bonded assembly one end.
Adopt technique scheme, the utility model embeds mounting hole with pull bar and welds owing to be provided with mounting hole in drawhead, makes between pull bar and the drawhead and changes the packaging type welding into by existing welding contact surface, can improve weldquality greatly thus, overcome weld seam problem easy to crack.And pull bar of the present utility model adopts the structure of Diameter Gradual Change, and the intensity of pull bar and drawhead bonded assembly one end is further strengthened, and further improves both bonded assembly reliability.Therefore the utility model is assembled in the rail wagon brake system, can effectively improve the intensity and the reliability of parking brake lever, guarantee driving safety.
Description of drawings
Fig. 1 is the structural representation of existing parking brake lever
Fig. 2 structural representation of the present utility model
Fig. 3 is the cutaway view of A-A hatching line among Fig. 2
Fig. 4 is the exploded drawings of Fig. 2
Fig. 5 is the structural representation of the utility model drawhead
Fig. 6 is the structural representation of the utility model pull bar
Fig. 7 is the working state schematic representation of the utility model parking brake lever
The specific embodiment
In order to describe structure of the present utility model, characteristics and effect in detail, existing following preferred embodiment of act and conjunction with figs. are described as follows.
As shown in Figure 2, a kind of railway truck provided by the utility model is formed 100 with parking brake lever and is made up of drawhead 10, pull bar 20 and pull bar tailgate 30.
As Fig. 4, shown in Figure 5, one end of drawhead 10 cylinder lever connecting rods 20 is provided with one pilot hole 11 is installed, the drawhead 10 corresponding body portion both sides that pilot hole 11 is installed respectively are provided with a welding hole 12 for relative 180 °, pull bar 20 penetrates in the installation pilot hole 11 of drawhead 10, and the welding hole 12 by drawhead 10 both sides is with pull bar 20 and drawhead 10 weld togethers.As shown in Figure 3, adopt the pull bar 20 of this structure welding and the space between the installation pilot hole 11 all full, guaranteed the Joint strenght of pull bar 20 with drawhead 10 by weldering.
As shown in Figure 6, pull bar 20 adopts the Diameter Gradual Change structures, with the diameter of drawhead 10 welding one end greater than with pull bar tailgate 30 bonded assemblys one end.So can improve the Joint strenght of pull bar 20, guarantee bonded assembly reliability between pull bar 20 and the drawhead 10.
Mode of operation of the present utility model as shown in Figure 7, parking brake lever forms 100 by drawhead 10 connection hand brakes 40, the other end connects front brake lever 50 by pull bar tailgate 30, so, the braking force of hand brake 40 outputs is formed 100 by parking brake lever and is delivered to front brake lever 50, by the lever gearing of front brake lever 50 with brake-force transmission to top rod 60, finally be delivered on the brake shoe (not shown) of bogie truck, produce brake action by brake shoe friction wheel.
Drawhead 10 of the present utility model all adopts integrate forging process to make with pull bar 20, has increased structural strength, has improved presentation quality.
The above only is a kind of specific embodiment of the present utility model, and all equivalent structure transformations of doing according to the utility model specification sheets, claims and Figure of description all should be included in the scope of patent protection of the present utility model.
Claims (2)
1. a railway truck is formed with parking brake lever, form by drawhead, pull bar and pull bar tailgate, it is characterized in that: the end that described drawhead connects described pull bar is provided with an installation pilot hole, the body portion both sides of the corresponding described installation pilot hole of described drawhead respectively are provided with a welding hole for relative 180 °, described pull bar penetrates in the installation pilot hole of described drawhead, and described pull bar and described drawhead are by described welding hole weld together.
2. railway truck as claimed in claim 1 is formed with parking brake lever, it is characterized in that: described pull bar adopts the Diameter Gradual Change structure, with the diameter of described drawhead bonded assembly one end greater than with the diameter of described pull bar tailgate bonded assembly one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206645943U CN201882109U (en) | 2010-12-17 | 2010-12-17 | Hand braking draw bar assembly for wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206645943U CN201882109U (en) | 2010-12-17 | 2010-12-17 | Hand braking draw bar assembly for wagon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882109U true CN201882109U (en) | 2011-06-29 |
Family
ID=44179647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206645943U Expired - Fee Related CN201882109U (en) | 2010-12-17 | 2010-12-17 | Hand braking draw bar assembly for wagon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201882109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784878A (en) * | 2012-09-03 | 2012-11-21 | 北京机电研究所 | Roll forging process for solid forging hand brake lever of rail wagon |
| 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 |
-
2010
- 2010-12-17 CN CN2010206645943U patent/CN201882109U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784878A (en) * | 2012-09-03 | 2012-11-21 | 北京机电研究所 | Roll forging process for solid forging hand brake lever of rail wagon |
| 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: 20110629 Termination date: 20181217 |