CN216241629U - Wear-resistant and corrosion-resistant railway piston rod - Google Patents

Abstract

The utility model discloses a wear-resistant and corrosion-resistant piston rod for a railway, which comprises a piston main rod, wherein the left end of the piston main rod is connected with a transmission rod, the transmission rod and the piston main rod are provided with connecting bolts, the transmission rod and the piston main rod are mutually fixed by the connecting bolts, the right end of the piston main rod is connected with a support rod, the right end of the support rod is coiled with mounting threads, the outside of the support rod is sleeved with a buffer sleeve, and tungsten carbide coatings are thermally sprayed on the outside of the transmission rod, the piston main rod and the support rod.

Description

Wear-resistant and corrosion-resistant railway piston rod

Technical Field

The utility model relates to the technical field of piston rod manufacturing, in particular to a wear-resistant and corrosion-resistant piston rod for a railway.

Background

The piston rod is a connecting component for supporting the piston to do work, most of the piston rod is applied to an oil cylinder and an air cylinder movement executing component, and the piston rod is a movement component with frequent movement and high technical requirements. The quality of the processing quality directly affects the service life and reliability of the whole product. The piston rod has high processing requirements and strict requirements on coaxiality and wear resistance. The oil cylinder rod is basically characterized in that a slender shaft is machined, the machining difficulty is high, and a piston rod is also needed on a railway.

The prior wear-resistant and corrosion-resistant piston rod for the railway, such as patent publication No. CN 202284646U, discloses a guide sealing device of a piston rod of a brake cylinder of a railway vehicle, which comprises a sleeve, a guide belt, a felt ring and a J-shaped rubber dust ring, wherein the inner wall of the sleeve is provided with three grooves; the guide belt is arranged in a groove at the rear end of the sleeve, the felt ring is arranged in a groove at the middle part of the sleeve, and the J-shaped rubber dustproof ring is arranged in a groove at the front end of the sleeve; the sleeve is located outside the brake cylinder front cover and welded to the brake cylinder front cover. However, the piston rod of the prior art is not good in wear resistance and corrosion resistance, and is easy to damage.

Therefore, the wear-resistant and corrosion-resistant piston rod for the railway is provided without solving the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a piston rod for railways to solve the problems of poor wear resistance and poor corrosion resistance in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a wear-resisting corrosion-resistant piston rod for railway, includes the piston mobile jib, the left end of piston mobile jib is connected with the transfer line, be provided with connecting bolt on transfer line and the piston mobile jib, connecting bolt is transfer line and piston mobile jib reciprocal anchorage, the right-hand member of piston mobile jib is connected with the bracing piece, the right-hand member of bracing piece is coiled there is the installation screw thread, the outside cover of bracing piece has the cushion collar, the outside hot spraying of transfer line, piston mobile jib and bracing piece has the tungsten carbide coating.

Preferably, one side of the outside of the supporting rod, which is close to the buffer sleeve, is provided with an antifouling ring, one end of the antifouling ring is provided with a sealing ring, and the sealing ring can seal the piston.

Preferably, the antifouling ring and the sealing ring are circular, the buffer sleeve is also circular, and the antifouling ring can prevent dust from entering the power part of the piston to damage the piston.

Preferably, one end of the transmission rod is connected with a second connecting ring, a connecting piece is movably arranged outside the second connecting ring, a support rod is inserted between the connecting piece and the second connecting ring, and the second connecting ring plays a role in connection.

Preferably, one end of the connecting piece is connected with a first connecting ring, a limiting block is arranged around the inner ring of the first connecting ring, and the first connecting ring plays a role in connection.

Preferably, the central point of first connecting ring puts and is provided with the rotation axis, the spacing groove has been seted up around the rotation axis is outside, stopper and spacing groove mutually support, and stopper and spacing groove prevent rotation axis and first connecting ring relative rotation.

Compared with the prior art, the utility model has the beneficial effects that: this piston rod for railway is rational in infrastructure, has following advantage:

(1) through being provided with the transfer line, the piston mobile jib, bracing piece and tungsten carbide coating realize that the piston rod has wear-resisting and corrosion resisting property's purpose, current device is when using, lead to the piston rod to corrode easily and the wearability is not good easily, consequently, during the use, when the piston rod is produced, through adopting neotype hot spraying coating technique, the surface coating at the piston rod has the tungsten carbide coating, the chemical property of tungsten carbide coating is stable, the wearability is good, and not react with acid-base, thereby can prevent that the piston rod from being corroded by the surrounding air.

(2) Through being provided with the bracing piece, antifouling ring, the strong purpose of piston rod functionality has been realized to sealing ring and cushion collar, the piston can generally be installed to current device, consequently, there is the cushion collar outside the cover of bracing piece, when the piston removes, the cushion collar can cushion, prevent the piston harm, then can prevent through antifouling ring that the dust from entering into the inside of piston, sealed effect has been played through the sealing ring, prevent some oil leakage in the piston, and can make things convenient for the inside of piston rod installation piston through the mounting thread.

(3) Prevent rotation axis and first connecting ring relative motion through being provided with first connecting ring, rotation axis, stopper and spacing groove, consequently, during the use, through being provided with stopper and spacing groove, stopper and spacing groove mutually support to stopper and spacing groove constitute limit structure, thereby when the connecting piece takes place to rotate, the connecting piece will drive the rotation axis and rotate, prevents the purpose of first connecting ring and rotation axis relative rotation.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic side view of a portion of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a first connecting ring; 2. a rotating shaft; 3. a connecting member; 4. a second connection ring; 5. a transmission rod; 6. a piston main rod; 7. a connecting bolt; 8. a support bar; 9. an antifouling ring; 10. a seal ring; 11. installing threads; 12. a tungsten carbide coating; 13. a limiting block; 14. a buffer sleeve; 15. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a wear-resistant and corrosion-resistant piston rod for a railway comprises a piston main rod 6, wherein a transmission rod 5 is connected to the left end of the piston main rod 6, the transmission rod 5 plays a transmission role, a connecting bolt 7 is arranged on the transmission rod 5 and the piston main rod 6, the transmission rod 5 and the piston main rod 6 are fixed to each other through the connecting bolt 7, a support rod 8 is connected to the right end of the piston main rod 6, the support rod 8 is inserted into a piston so as to mount the piston, a mounting thread 11 is wound on the right end of the support rod 8, the piston rod can be mounted in the piston through the mounting thread 11, a buffer sleeve 14 is sleeved outside the support rod 8, the buffer sleeve 14 can buffer in the moving process of the piston rod, the piston is prevented from being damaged, and a tungsten carbide coating 12 is thermally sprayed on the outer portions of the transmission rod 5, the piston main rod 6 and the support rod 8;

by adopting a novel thermal spraying coating technology, the surface of the piston rod is coated with the tungsten carbide coating 12, the tungsten carbide coating 12 has stable chemical properties and good wear resistance, and does not react with acid and alkali, so that the piston rod can be prevented from being corroded by the surrounding air;

an antifouling ring 9 is arranged on one side, close to the buffer sleeve 14, of the outer portion of the support rod 8, a sealing ring 10 is arranged at one end of the antifouling ring 9, the antifouling ring 9 and the sealing ring 10 are circular, and the buffer sleeve 14 is also circular;

the buffer sleeve 14 is sleeved outside the support rod 8, when the piston moves, the buffer sleeve 14 can buffer to prevent the piston from being damaged, then dust can be prevented from entering the piston through the anti-pollution ring 9, the sealing effect is achieved through the sealing ring 10, oil in the piston is prevented from leaking, and the piston rod can be conveniently installed inside the piston through the installation thread 11;

one end of the transmission rod 5 is connected with a second connecting ring 4, a connecting piece 3 is movably arranged outside the second connecting ring 4, a support rod 8 is inserted between the connecting piece 3 and the second connecting ring 4, the second connecting ring 4 can connect the connecting piece 3, one end of the connecting piece 3 is connected with a first connecting ring 1, a limiting block 13 is arranged around the inner ring of the first connecting ring 1, a rotating shaft 2 is arranged at the central position of the first connecting ring 1, a limiting groove 15 is arranged around the outer part of the rotating shaft 2, the limiting block 13 is matched with the limiting groove 15, and the limiting block 13 and the limiting groove 15 prevent the rotating shaft 2 and the first connecting ring 1 from sliding relatively;

during the use, through being provided with stopper 13 and spacing groove 15, stopper 13 and spacing groove 15 mutually support to stopper 13 and spacing groove 15 constitute limit structure, thereby when connecting piece 3 takes place to rotate, connecting piece 3 will drive rotation axis 2 and rotate, prevent the purpose of first connecting ring 1 and rotation axis 2 relative rotation.

When the piston rod is used, the piston main rod 6 is inserted into the piston, the piston rod can be conveniently installed inside the piston through the installation thread 11, the buffer sleeve 14 is sleeved outside the supporting rod 8, when the piston moves, the buffer sleeve 14 can buffer to prevent the piston from being damaged, then the dirt can be prevented from entering the piston through the dirt-proof ring 9, the sealing effect is achieved through the sealing ring 10, oil in the piston is prevented from leaking, when the piston rod is produced, the tungsten carbide coating 12 is coated on the surface of the piston rod by adopting a novel thermal spraying coating technology, the tungsten carbide coating 12 is stable in chemical property, good in wear resistance and free from acid-base reaction, so that the piston rod can be prevented from being corroded by surrounding air, the limit block 13 and the limit groove 15 are arranged, the limit block 13 and the limit groove 15 are mutually matched, and therefore the limit block 13 and the limit groove 15 form a limit structure, therefore, when the connecting piece 3 rotates, the connecting piece 3 can drive the rotating shaft 2 to rotate, and the purpose of preventing the first connecting ring 1 from rotating relative to the rotating shaft 2 is achieved.

Claims (6)

1. The utility model provides a wear-resisting corrosion-resistant for railway piston rod which characterized in that: including piston mobile jib (6), the left end of piston mobile jib (6) is connected with transfer line (5), be provided with connecting bolt (7) on transfer line (5) and piston mobile jib (6), connecting bolt (7) are transfer line (5) and piston mobile jib (6) reciprocal anchorage, the right-hand member of piston mobile jib (6) is connected with bracing piece (8), the right-hand member of bracing piece (8) is coiled and is had mounting thread (11), the outside cover of bracing piece (8) has buffer sleeve (14), the outside hot spraying of transfer line (5), piston mobile jib (6) and bracing piece (8) has tungsten carbide coating (12).

2. A wear and corrosion resistant railway piston rod according to claim 1, characterized in that: an anti-fouling ring (9) is arranged on one side, close to the buffer sleeve (14), of the outer portion of the supporting rod (8), and a sealing ring (10) is arranged at one end of the anti-fouling ring (9).

3. A wear and corrosion resistant railway piston rod according to claim 2, characterized in that: the antifouling ring (9) and the sealing ring (10) are circular, and the buffer sleeve (14) is also circular.

4. A wear and corrosion resistant railway piston rod according to claim 1, characterized in that: one end of the transmission rod (5) is connected with a second connecting ring (4), a connecting piece (3) is movably arranged outside the second connecting ring (4), and a support rod (8) is inserted between the connecting piece (3) and the second connecting ring (4).

5. The wear and corrosion resistant railway piston rod of claim 4, wherein: one end of the connecting piece (3) is connected with a first connecting ring (1), and a limiting block (13) is arranged around the inner ring of the first connecting ring (1).

6. The wear and corrosion resistant railway piston rod of claim 5, wherein: the central point of first connecting ring (1) puts and is provided with rotation axis (2), spacing groove (15) have been seted up around rotation axis (2) outside, stopper (13) and spacing groove (15) mutually support.

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