CN115107822B - Sickle-shaped upper pull rod device - Google Patents
Sickle-shaped upper pull rod device Download PDFInfo
- Publication number
- CN115107822B CN115107822B CN202210718382.6A CN202210718382A CN115107822B CN 115107822 B CN115107822 B CN 115107822B CN 202210718382 A CN202210718382 A CN 202210718382A CN 115107822 B CN115107822 B CN 115107822B
- Authority
- CN
- China
- Prior art keywords
- sickle
- pull rod
- plate
- connecting piece
- round pin
- 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.)
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Links
- 210000000003 hoof Anatomy 0.000 claims description 12
- 230000009182 swimming Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H13/00—Actuating rail vehicle brakes
- B61H13/20—Transmitting mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H13/00—Actuating rail vehicle brakes
- B61H13/34—Details
- B61H13/38—Suspension of transmitting mechanisms
Abstract
The invention belongs to the technical field of railway wagon braking devices, and particularly relates to a sickle-shaped upper pull rod device. The technical proposal is as follows: the sickle-shaped upper pull rod device comprises an upper pull rod assembly, wherein the upper pull rod assembly comprises a first connecting piece, a sickle plate, an anti-tilting plate, a pull rod and a second connecting piece which are sequentially connected, one end of the first connecting piece, which is far away from the sickle plate, is connected with a traveling lever, one end of the second connecting piece, which is far away from the pull rod, is connected with a brake lever, and the sickle plate protrudes towards the direction, which is far away from an axle. The invention provides a sickle-shaped upper pull rod device for preventing an upper pull rod from rubbing an axle.
Description
Technical Field
The invention belongs to the technical field of railway wagon braking devices, and particularly relates to a sickle-shaped upper pull rod device.
Background
The basic brake device of the railway freight car can be divided into two forms of car body installation and bogie installation according to the installation position of the brake cylinder. For vehicles with foundation brake devices mounted on the body of the vehicle, an upper pull rod is generally used to connect a brake lever in the foundation brake device with bogie travelling levers at both ends of the vehicle. The three-piece bogie of the traditional railway wagon only adopts a 1-system suspension structure, a travelling lever, a side frame, wheel pairs and the like are all positioned below a suspension spring and are not influenced by the deflection of the spring when the wagon is loaded, an upper pull rod with a linear structure is generally adopted under the condition, one end of the upper pull rod is connected with a brake lever of a basic brake device of the wagon body, and the other end of the upper pull rod is connected with the travelling lever of the bogie.
In the case of welded frame bogies using 2-series suspension springs, the wheel set assembly is below 1-series suspension springs, and therefore the wheel set assembly is stationary relative to the rail. The travelling lever and the framework are arranged between the primary suspension spring and the secondary suspension spring, and the vehicle body and the foundation braking device are arranged on the secondary suspension. When the vehicle is increased along with the loading of cargoes, the suspension springs are compressed, the traveling levers and the brake levers sink to different degrees relative to the wheel sets, the sinking amount of the traveling levers is small, and the sinking amount of the brake levers is large.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention aims to provide a sickle-shaped upper pull rod device for avoiding the upper pull rod from rubbing an axle.
The technical scheme adopted by the invention is as follows:
the sickle-shaped upper pull rod device comprises an upper pull rod assembly, wherein the upper pull rod assembly comprises a first connecting piece, a sickle plate, a pull rod and a second connecting piece which are sequentially connected, one end of the first connecting piece, which is far away from the sickle plate, is connected with a traveling lever, one end of the second connecting piece, which is far away from the pull rod, is connected with a brake lever, and the sickle plate protrudes towards the direction, which is far away from an axle.
The sickle plate protrudes in a direction away from the axle, and in the axle area, the gap between the sickle plate and the axle is increased. Even if the bogie 1 and the bogie 2 are compressed by suspension springs along with the increase of the load of the vehicle, the floating levers and the brake levers connected to the two ends of the upper pull rod sink to different degrees relative to the wheel shaft, and the sickle plate cannot rub against the wheel shaft. The sickle-shaped upper pull rod device not only realizes the transmission of braking force, but also avoids the problem that the upper pull rod bumps and grinds an axle.
As a preferable scheme of the invention, the first connecting piece comprises two chain hoof rings and a pull rod head which are mutually buckled, wherein one chain hoof ring is connected with the swimming lever, the other chain hoof ring is connected with the pull rod head, and the other end of the pull rod head is connected with the sickle plate.
As a preferable scheme of the invention, the pull rod head is provided with a socket and a round pin hole, the socket is used for being connected with a sickle plate, and the round pin hole is used for being connected with a chain hoof ring.
As a second preferred aspect of the present invention, the first connecting member includes a first clamping plate, the first clamping plate is welded to the sickle plate, and an end of the first clamping plate away from the sickle plate is connected to the traveling lever. When the first connecting piece is a first clamping plate, two chain hoof rings and a pull rod head are canceled.
As a preferable scheme of the invention, the second connecting piece comprises a second clamping plate, one end of the second clamping plate is connected with the pull rod, the other end of the second clamping plate is provided with at least one connecting hole distributed along the axial direction, and the brake lever is connected with the second clamping plate through one of the connecting holes. And one end of the second clamping plate, which is close to the brake lever, can be provided with a single, two or three connecting holes, and the length of the upper pull rod device can be conveniently adjusted when the second clamping plate with a plurality of connecting holes is selected.
As a preferable scheme of the invention, the second clamping plate is of a split structure or an integral structure.
As the preferable scheme of the invention, the bottom of the pull rod is fixedly provided with the anti-tilting plate, the bottom of the frame is provided with the bracket assembly, and the anti-tilting plate is lapped on the bracket assembly. The anti-tilting plate is a strip-shaped thin plate, the assembly welding is arranged below the pull rod, the anti-tilting plate can be contacted with the bracket under the working condition that the setting position and the length of the anti-tilting plate meet the total abrasion of the vehicle, and the point contact of the pull rod and the bracket is changed into the line contact through the cooperation of the anti-tilting plate and the bracket, so that the pull rod is prevented from swinging left and right.
As the preferable scheme of the invention, the bracket comprises a bracket, a round pin is rotatably connected in the bracket, the round pin is horizontally arranged, a sleeve is sleeved outside the round pin, and the anti-tilting plate is lapped on the sleeve. The anti-tilting plate is in line contact with the sleeve, so that the pull rod is prevented from swinging. And the sleeve can rotate on the round pin, so that when the anti-tilting plate moves, the sleeve correspondingly rolls, and friction is reduced.
As a preferable scheme of the invention, a gasket is connected between the round pin and the bracket, and the round pin is connected with a cotter pin for blocking the round pin from falling out of the bracket.
As a preferable scheme of the sickle, the knife handles on two sides of the sickle plate are positioned on the same central line. The sickle plate only protrudes outwards in the axle area, so that the head and the tail of the sickle plate and the pull rod are positioned on the same straight line, and the transmission of braking force is facilitated.
The beneficial effects of the invention are as follows:
the sickle plate protrudes in a direction away from the axle, and in the axle area, the gap between the sickle plate and the axle is increased. Even if the bogie 1 and the bogie 2 are compressed by suspension springs along with the increase of the load of the vehicle, the floating levers and the brake levers connected to the two ends of the upper pull rod sink to different degrees relative to the wheel shaft, and the sickle plate cannot rub against the wheel shaft. The sickle-shaped upper pull rod device not only realizes the transmission of braking force, but also avoids the problem that the upper pull rod bumps and grinds an axle.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the construction of the upper tie rod assembly;
FIG. 3 is a schematic view of the construction of a chain shoe ring;
FIG. 4 is a schematic structural view of a pull rod head;
FIG. 5 is a schematic view of the first clamp plate and sickle plate;
FIG. 6 is a schematic view of the structure of a sickle plate;
FIG. 7 is a schematic view of the structure of the anti roll plate;
FIG. 8 is a schematic structural view of a tie rod;
FIG. 9 is a schematic view of the structure of the bracket assembly;
FIG. 10 is a schematic view of the construction of a second cleat in a first application form;
FIG. 11 is a schematic view of the construction of a second cleat in a second application form;
FIG. 12 is a schematic view of a third embodiment of a second cleat;
fig. 13 is a schematic structural view of a second clamping plate in a fourth application form.
In the figure: 1-an upper pull rod; 2-bracket composition; 3-wheels; 4-axles; 5-a swimming lever; 6-a brake lever; 7-a brake lever pushrod; 8-a brake cylinder; 10-chain hoof rings; 11-a pull rod head; 12-sickle plate; 13-an anti-roll plate; 14-a pull rod; 15-a second splint; 16-a first splint; 21-a bracket; 22-sleeve; 23-washers; 24-cotter pin; 25-round pins.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
As shown in fig. 1 and 2, the sickle-shaped upper pull rod device of the embodiment comprises an upper pull rod assembly 1, wherein the upper pull rod assembly 1 comprises a first connecting piece, a sickle plate 12, a pull rod 14 and a second connecting piece which are sequentially connected, one end of the first connecting piece, which is far away from the sickle plate 12, is connected with a traveling lever 5, one end of the second connecting piece, which is far away from the pull rod 14, is connected with a brake lever 6, and the sickle plate 12 protrudes towards a direction far away from an axle 4. One end of the brake lever 6 far away from the upper pull rod assembly 1 is connected with a brake cylinder push rod 7, and the other end of the brake cylinder push rod 7 is connected with a piston rod of a brake cylinder 8.
The sickle plate 12 according to the invention protrudes away from the axle 4, and in the region of the axle 4 the gap between the sickle plate 12 and the axle 4 increases. Even if the bogie 1 and the bogie 2 are compressed by suspension springs with the increase of the load of the vehicle, the traveling levers 5 and the brake levers 6 connected to the two ends of the upper pull rod assembly 1 sink to different degrees relative to the wheel shaft assembly, and the sickle plate 12 cannot rub against the axle 4. The sickle-shaped upper pull rod device not only realizes the transmission of braking force, but also avoids the problem that the upper pull rod 14 bumps and grinds the axle 4.
As shown in fig. 6, the sickle plate 12 is made of 25mm thick plate material, and the sickle plate 12 can be forged to meet the use requirement of multiple working conditions. The sickle plate 12 has a notch at one end near the pull rod 14 for connection with the pull rod 14. The handles at the two ends of the sickle plate 12 are positioned on the same central line. The sickle plate 12 only protrudes outwards in the area of the axle 4, so that the head and the tail of the sickle plate 12 and the pull rod 14 are in the same straight line, and the transmission of braking force is facilitated.
As shown in fig. 8, depending on the tension experienced by the tie rod 14, different materials and thicknesses may be used. The pull rod 14 is made of solid round steel. Round steel can be selected to have different diameters according to the magnitude of the tension of the pull rod 14. When the tie rod 14 is required to bear a large tensile force, all the component materials can meet the requirements by increasing the plate thickness, adopting high-strength materials, changing the diameter of round steel and the like.
As shown in fig. 2, 3 and 4, in one embodiment, the first connecting piece includes two chain shoe rings 10 and a pull rod head 11 that are fastened to each other, wherein one chain shoe ring 10 is connected to the traveling lever 5, the other chain shoe ring 10 is connected to the pull rod head 11, and the other end of the pull rod head 11 is connected to the sickle plate 12. The pull rod head 11 is provided with a socket and a round pin hole, the socket is used for being welded with the sickle plate 12, and the round pin hole is used for being connected with the chain hoof ring 10. The sickle plate 12 is also provided with a socket at the end close to the first connecting piece for connection with the pull rod head 11, and no socket is provided on the pull rod head 11. The pull rod head 11 is machined from 25mm thick sheet material.
In another embodiment, as shown in fig. 5, the first connecting member comprises a first clamping plate 16, the first clamping plate 16 is welded to the sickle plate 12, and an end of the first clamping plate 16 away from the sickle plate 12 is connected to the traveling lever 5 by a pin. When the first connecting piece is the first clamping plate 16, the two chain hoof rings 10 and the pull rod head 11 are omitted.
As shown in fig. 10 to 13, the second connecting member includes a second clamping plate 15, one end of the second clamping plate 15 is connected to the pull rod 14, the other end of the second clamping plate 15 is provided with at least one connecting hole distributed along the axial direction, and the brake lever 6 is connected to the second clamping plate 15 through one of the connecting holes. The second clamping plate 15 can be provided with a single, two or three connecting holes at one end close to the brake lever 6, and the length of the upper pull rod 14 device can be conveniently adjusted when the second clamping plate 15 with a plurality of connecting holes is selected.
As shown in fig. 10, the second clamping plate 15 of the first application form has a double-connecting hole structure, and 1 is arranged at the upper part and the lower part, so that the whole length of the upper pull rod 14 device can be conveniently adjusted.
As shown in fig. 11, the second clamping plate 15 of the second application form has a single connecting hole structure, 1 each above and below.
As shown in fig. 12, the second clamping plate 15 of the third application form has a three-connection hole structure, 1 each above and below.
As shown in fig. 13, the second clamping plate 15 of the fourth application form is of a single-connection hole structure and of a unitary structure.
As shown in fig. 2 and 7, in order to prevent the pull rod 14 from tilting, an anti-tilting plate 13 is fixed at the bottom of the pull rod 14, a bracket assembly 2 is mounted at the bottom of the frame, and the anti-tilting plate 13 is lapped on the bracket assembly 2. The anti-tilting plate 13 is a strip-shaped thin plate, the assembly welding is carried out below the pull rod 14, the anti-tilting plate 13 can be contacted with the bracket assembly 2 under the condition that the setting position and the length of the anti-tilting plate 13 meet the total abrasion condition of a vehicle, and the point contact of the pull rod 14 and the bracket 21 is changed into line contact through the cooperation of the anti-tilting plate 13 and the bracket assembly 2, so that the pull rod 14 is prevented from swinging left and right.
Specifically, as shown in fig. 9, the bracket assembly 2 includes a bracket 21, a round pin 25 is rotatably connected to the bracket 21, the round pin 25 is horizontally disposed, a sleeve 22 is sleeved on the round pin 25, and the anti-tilting plate 13 is lapped on the sleeve 22. The anti-tilting plate 13 is in line contact with the sleeve 22 to prevent the pull rod 14 from swinging. When the sleeve 22 is rotatable on the round pin 25, the sleeve rolls correspondingly when the anti-tilting plate 13 moves, thereby reducing friction. A washer 23 is connected between the round pin 25 and the bracket 21, and a cotter pin 24 for blocking the round pin 25 from falling out of the bracket 21 is connected to the round pin 25.
The bracket 21 is formed by bending a 5mm thick plate material, and is provided with an assembly hole. The sleeve 22 is cut from standard steel pipe, and the round pin 25, cotter pin 24 and washer 23 are all standard components. The number of bracket assemblies 2 is configured according to the length of the upper tie rod assemblies 1, but each upper tie rod assembly 1 must be provided with one bracket assembly 2 at the anti-roll plate 13.
When assembling, the upper pull rod assembly 1 passes through the bracket assembly 2, then the first connecting piece is connected with the steering frame, and the second connecting piece is connected with the brake lever 6 of the foundation brake device. The connecting mode adopts a structure of round pins and cotter pins. The first connecting piece and the second connecting piece can be connected by a rivet pulling pin.
The invention innovatively adopts the sickle-shaped upper pull rod assembly 1, thereby realizing the transmission of braking force and avoiding the problem that the pull rod 14 bumps and grinds the axle 4. The sickle-shaped upper pull rod assembly 1 can transmit the pulling force required by the railway wagon standard, and has good applicability. The length of the sickle-shaped upper pull rod component 1 is adjustable, all components are easy to process, the structure is simple, and the sickle-shaped upper pull rod is mature and reliable. The second connecting piece adopts a double-hole clamping plate structure, so that the adjustment requirement during assembly is met. The invention innovatively sets the anti-tilting plate 13, and effectively avoids the situation that the pull rod 14 is inclined left and right due to the heavy head and light foot of the sickle plate 12 by being matched with the bracket assembly 2. The length and depth of the sickle plate 12 are determined according to the abrasion amounts of the bogie wheels 3 and the brake shoes and the deflection of the 2-series suspension springs, so that the use requirements of the full abrasion and full load range of the vehicle are met.
The invention is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present invention, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present invention, fall within the scope of protection of the present invention.
Claims (9)
1. A sickle-shaped pull rod device, which is characterized in that: the device comprises an upper pull rod assembly (1), wherein the upper pull rod assembly (1) comprises a first connecting piece, a sickle plate (12), a pull rod (14) and a second connecting piece which are sequentially connected, one end of the first connecting piece, which is far away from the sickle plate (12), is connected with a traveling lever (5), one end of the second connecting piece, which is far away from the pull rod (14), is connected with a brake lever (6), and the sickle plate (12) protrudes towards the direction far away from an axle (4); the bottom of the pull rod (14) is fixed with an anti-tilting plate (13), the bottom of the frame is provided with a bracket assembly (2), and the anti-tilting plate (13) is lapped on the bracket assembly (2).
2. A sickle-shaped pull-up lever apparatus according to claim 1, wherein: the first connecting piece comprises two chain hoof rings (10) which are buckled with each other and a pull rod head (11), wherein one chain hoof ring (10) is connected with the swimming lever (5), the other chain hoof ring (10) is connected with the pull rod head (11), and the other end of the pull rod head (11) is connected with the sickle plate (12).
3. A sickle-shaped pull-up bar apparatus according to claim 2, wherein: the draw bar head (11) is provided with a socket and a round pin hole, the socket is used for being connected with a sickle plate (12), and the round pin hole is used for being connected with a chain hoof ring (10).
4. A sickle-shaped pull-up lever apparatus according to claim 1, wherein: the first connecting piece comprises a first clamping plate (16), the first clamping plate (16) is welded with the sickle plate (12), and one end, far away from the sickle plate (12), of the first clamping plate (16) is connected with the swimming lever (5).
5. A sickle-shaped pull-up lever apparatus according to claim 1, wherein: the second connecting piece comprises a second clamping plate (15), one end of the second clamping plate (15) is connected with the pull rod (14), at least one connecting hole distributed along the axial direction is formed in the other end of the second clamping plate (15), and the brake lever (6) is connected with the second clamping plate (15) through one of the connecting holes.
6. A sickle-shaped pull-up bar apparatus according to claim 5, wherein: the second clamping plate (15) is of a split structure or an integrated structure.
7. A sickle-shaped pull-up lever apparatus according to claim 1, wherein: the bracket assembly (2) comprises a bracket (21), a round pin (25) is rotationally connected to the bracket (21), the round pin (25) is horizontally arranged, a sleeve (22) is sleeved outside the round pin (25), and the anti-tilting plate (13) is lapped on the sleeve (22).
8. A sickle-shaped pull-up bar apparatus according to claim 7, wherein: a gasket (23) is connected between the round pin (25) and the bracket (21), and a cotter pin (24) for blocking the round pin (25) from falling out of the bracket (21) is connected to the round pin (25).
9. A sickle-shaped pull-up bar apparatus according to any one of claims 1 to 8 wherein: the knife handles on two sides of the sickle plate (12) are positioned on the same central line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210718382.6A CN115107822B (en) | 2022-06-23 | 2022-06-23 | Sickle-shaped upper pull rod device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210718382.6A CN115107822B (en) | 2022-06-23 | 2022-06-23 | Sickle-shaped upper pull rod device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115107822A CN115107822A (en) | 2022-09-27 |
| CN115107822B true CN115107822B (en) | 2023-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210718382.6A Active CN115107822B (en) | 2022-06-23 | 2022-06-23 | Sickle-shaped upper pull rod device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115107822B (en) |
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|---|---|
| CN115107822A (en) | 2022-09-27 |
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