A brake cylinder punch piston

Abstract

The utility model belongs to brake cylinder technical field, concretely is a kind of brake cylinder stamping piston, it include: piston subassembly and set on the locating assembly of piston subassembly;The piston subassembly includes piston head, connect on the piston skirt of piston head, open in the bolt hole of piston skirt, piston pin is inserted in the bolt hole, bushing is sleeved in the both ends of piston pin and is fixed in the both ends of piston pin and card bad;The locating assembly includes the limiting mechanism of being set in the inner side of piston skirt and the lubricating mechanism of being set on the limiting mechanism.The utility model can utilize spring and limit plate to the end of connecting rod and be fixed tightly, to reduce the deviation after connecting rod is subjected to vibration, greatly reduce the wear and tear between connecting rod and piston, guarantee the service life of piston component, different specifications connecting rod can be fixed tightly self-adapting simultaneously, and the practicality is higher.

Description

Technical Field

[0001] This utility model relates to the field of brake cylinder technology, specifically to a brake cylinder stamping piston. Background Technology

[0002] The brake cylinder consists of a brake cylinder head, piston, piston rod, piston cup, and release spring. When compressed air enters the brake cylinder through the action of a three-way valve, it pushes the piston through a set of basic devices to perform the braking effect.

[0003] Existing brake cylinder stamped pistons are generally directly connected to the connecting rod, utilizing the movement of the connecting rod and piston. However, brake cylinders are subjected to vibration in many operating environments, and the vibration transmitted to the connecting rod will cause the axis of the piston to deviate, resulting in excessive wear, which in turn amplifies the vibration amplitude. This vicious cycle greatly reduces the service life of the brake cylinder. Therefore, we propose a brake cylinder stamped piston. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A brake cylinder stamping piston includes: a piston assembly and a positioning assembly disposed on the piston assembly; the piston assembly includes a piston head, a piston skirt connected to the piston head, a pin hole opened in the piston skirt, a piston pin inserted into the pin hole, bushings fitted at both ends of the piston pin, and retaining rings fixed at both ends of the piston pin; the positioning assembly includes a limiting mechanism disposed on the inner side of the piston skirt and a lubrication mechanism disposed on the limiting mechanism; the limiting mechanism includes a spring fitted on the outer side of the bushing, a limiting plate fitted on the bushing and located on the spring side, a retaining groove opened on the limiting plate, and a ball embedded in the retaining groove.

[0007] In a preferred embodiment, the present invention can be further configured such that the lubrication mechanism includes an oil reservoir in the piston pin, an oil filling port connected to the end of the oil reservoir, an oil hole one in the bottom of the piston pin, an oil hole two in the bushing and below the oil hole one, and an oil hole three in the limiting plate and above the ball.

[0008] In a preferred embodiment, the present invention can be further configured such that the piston skirt and the limiting plate are provided with positioning grooves for limiting the spring.

[0009] In a preferred embodiment, the present invention can be further configured such that: an oleophobic cotton liner extending into the second oil hole is placed inside the first oil hole.

[0010] In a preferred embodiment, the present invention can be further configured such that: an oil-repellent cotton 2 is placed inside the oil hole 3, and an oil groove is formed on the oil-repellent cotton 2.

[0011] In a preferred embodiment, the present invention can be further configured such that a baffle located at the bottom of the outer side of the slot is installed on the limiting plate.

[0012] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0013] 1. This utility model uses a positioning component to press and fix the end of the connecting rod with a spring and a limiting plate, thereby reducing the displacement of the connecting rod after vibration, greatly reducing the wear between the connecting rod and the piston, ensuring the service life of the piston component, and can adaptively press and fix connecting rods of different specifications, making it highly practical.

[0014] 2. This utility model, through its positioning component, allows lubricating oil to sequentially pass through oil hole one, oil hole two, and oil hole three into the slot, enabling the lubricating oil stored in the oil reservoir to continuously lubricate the ball bearings, thereby ensuring the smoothness of the connecting rod movement and improving operational performance. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the brake cylinder stamping piston of this utility model;

[0016] Figure 2 This is an enlarged view of the brake cylinder stamping piston A of this utility model.

[0017] Figure label:

[0018] 100. Piston assembly; 110. Piston head; 120. Piston skirt; 130. Pin hole; 140. Piston pin; 150. Bushing; 160. Collapsed part;

[0019] 200, Positioning component; 210, Spring; 211, Positioning groove; 220, Limiting plate; 221, Baffle; 230, Slot; 240, Ball bearing;

[0020] 310. Oil reservoir; 320. Oil filler port; 330. Oil hole one; 331. Oil-repellent cotton one; 340. Oil hole two; 350. Oil hole three; 351. Oil-repellent cotton two; 352. Oil reservoir. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0022] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0023] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a brake cylinder stamping piston.

[0024] Combination Figure 1-2 As shown, the present invention provides a brake cylinder stamping piston, comprising: a piston assembly 100 and a positioning assembly 200 disposed on the piston assembly 100. The piston assembly 100 includes a piston head 110, a piston skirt 120 connected to the piston head 110, a pin hole 130 opened on the piston skirt 120, a piston pin 140 inserted into the pin hole 130, bushings 150 fitted at both ends of the piston pin 140, and retaining clips 160 fixed at both ends of the piston pin 140.

[0025] The positioning component 200 includes a limiting mechanism disposed inside the piston skirt 120 and a lubrication mechanism disposed on the limiting mechanism. The limiting mechanism includes a spring 210 fitted on the outside of the bushing 150, a limiting plate 220 fitted on the bushing 150 and located on the side of the spring 210, a slot 230 opened on the limiting plate 220, and a ball 240 embedded in the slot 230. The spring 210 and the limiting plate 220 can be used to press and fix the end of the connecting rod, thereby reducing the displacement of the connecting rod after vibration, greatly reducing the wear between the connecting rod and the piston, ensuring the service life of the piston component, and can adaptively press and fix connecting rods of different specifications, which is highly practical.

[0026] Specifically, the lubrication mechanism includes an oil reservoir 310 located within the piston pin 140, an oil filler port 320 connected to the end of the oil reservoir 310, an oil hole 330 located at the bottom of the piston pin 140, an oil hole 340 located in the bushing 150 and below the oil hole 330, and an oil hole 350 located in the limiting plate 220 and above the ball bearing 240. Lubricating oil can pass through the oil hole 330, the oil hole 340, and the oil hole 350 in sequence into the slot 230, so that the lubricating oil stored in the oil reservoir 310 continuously lubricates the ball bearing 240, thereby ensuring the smoothness of the connecting rod movement and improving the working performance.

[0027] Furthermore, the piston skirt 120 and the limiting plate 220 are provided with positioning grooves 211 for limiting the spring 210. The positioning grooves 211 can limit the spring 210, thereby ensuring the stability of the spring 210.

[0028] On the other hand, an oil-repellent cotton 331 extending into the second oil hole 340 is placed in the first oil hole 330, which allows the lubricating oil in the oil reservoir 310 to flow slowly downwards, thereby providing lubrication for the ball bearing 240.

[0029] It should be noted that sealing rings can be installed on both sides of the flow channels where lubricating oil flows downward, namely oil hole 1 330, oil hole 2 340 and oil hole 3 350, to prevent lubricating oil from leaking to the side. Of course, sealing rings are not necessary when the three are matched and correspond, and can be used as needed.

[0030] Furthermore, an oil-repellent cotton 351 is placed inside the oil hole 350, and an oil groove 352 is provided on the oil-repellent cotton 351, which can restrict the lubricating oil, prevent the lubricating oil from flowing downwards excessively, and control the amount used.

[0031] Furthermore, a baffle 221 is installed on the limiting plate 220 at the bottom of the outer side of the slot 230. The baffle 221 can prevent the lubricating oil in the slot 230 from being discharged outward when the ball 240 rotates, thereby saving the amount of lubricating oil used and extending the maintenance period.

[0032] The working principle and usage process of this utility model are as follows: First, place the end of the connecting rod inside the piston skirt 120, then pass the piston pin 140 through the connecting rod. At the same time as passing through the connecting rod, set the spring 210 and the limiting plate 220 on both sides of the connecting rod and pass through simultaneously. Then, use the clamp 160 to fasten the two ends of the piston pin 140. After the fastening is completed, the ball bearings 240 are pressed tightly on both sides of the connecting rod.

[0033] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A brake cylinder stamping piston, characterized in that, include: Piston assembly (100) and positioning assembly (200) disposed on said piston assembly (100). The piston assembly (100) includes a piston head (110), a piston skirt (120) connected to the piston head (110), a pin hole (130) opened on the piston skirt (120), a piston pin (140) inserted into the pin hole (130), bushings (150) fitted on both ends of the piston pin (140), and retainers (160) fixed to both ends of the piston pin (140). The positioning assembly (200) includes a limiting mechanism disposed inside the piston skirt (120) and a lubrication mechanism disposed on the limiting mechanism; The limiting mechanism includes a spring (210) fitted on the outside of the bushing (150), a limiting plate (220) fitted on the bushing (150) and located on the side of the spring (210), a slot (230) opened on the limiting plate (220) and a ball (240) embedded in the slot (230).

2. The brake cylinder stamping piston according to claim 1, characterized in that, The lubrication mechanism includes an oil reservoir (310) opened in the piston pin (140), an oil replenishment port (320) connected to the end of the oil reservoir (310), an oil hole one (330) opened at the bottom of the piston pin (140), an oil hole two (340) opened in the bushing (150) and located below the oil hole one (330), and an oil hole three (350) opened in the limiting plate (220) and located above the ball (240).

3. A brake cylinder stamping piston according to claim 1, characterized in that, The piston skirt (120) and the limiting plate (220) are provided with positioning grooves (211) for limiting the spring (210).

4. A brake cylinder stamping piston according to claim 2, characterized in that, An oleophobic cotton liner (331) extending into the second oil hole (340) is placed inside the first oil hole (330).

5. A brake cylinder stamping piston according to claim 2, characterized in that, The oil hole three (350) contains an oil-repellent cotton two (351), and the oil-repellent cotton two (351) has an oil groove (352).

6. A brake cylinder stamping piston according to claim 1, characterized in that, A baffle (221) is installed on the limiting plate (220) at the bottom of the outer side of the slot (230).

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