Self-lubricating hand braking device of railway wagon

Abstract

The utility model discloses a rail wagon self-lubricating hand braking device which comprises a main body module and a lubricating module. The main body module comprises a bottom plate, a structural support fixed to the bottom plate, a driving piece rotationally installed on one side of the structural support, a second rotating shaft rotationally installed on the other side of the structural support, a large gear fixedly connected to the second rotating shaft in a sleeving mode and engaged with the driving piece, and a steel chain with the end fixed to the large gear. The bottom plate and the structural support are both used for installing other assemblies and ensuring the stability of all the assemblies, the driving piece is used for facilitating rotation of a worker so as to drive the large gear to rotate, and the driving piece comprises a first rotating shaft rotationally arranged on the structural support, a small gear fixedly connected to the first rotating shaft in a sleeving mode and a hand wheel fixed to the end of the first rotating shaft; the self-lubricating hand braking device of the railway wagon has the advantages of being capable of achieving automatic lubrication and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of brake devices, in particular to a self-lubricating hand brake device for a railway freight car. Background Art

[0002] The handbrake is a mechanism installed on the vehicle braking device, which uses human power as the braking motive force. It is mainly used on railway freight cars. When railway freight cars are shunting or parking, human power is used as the braking motive force to operate the handbrake, which will generate braking force. This braking force is transmitted to the brake shoe through the basic braking device, so that the brake shoe is pressed against the wheel to generate braking effect.

[0003] The commonly used hand brake generally includes a hand wheel, a chain, a housing, a driving shaft set in the housing, a large gear and a base. The hand wheel is connected to the driving shaft, one end of the chain is fixed to the large gear, and the other end is connected to the fixed pulley set at the bottom of the brake vehicle through the hand brake pull rod. When braking, the hand wheel drives the small gear to rotate clockwise through the driving shaft, and then drives the large gear to rotate counterclockwise, and the ratchet wheel and the ratchet tongue rotate relative to each other. As the large gear rotates, the chain is wrapped around the main shaft of the large gear, thereby applying braking force to the pull rod in the basic brake device.

[0004] When the hand brake is working, the pinion is connected to the driving shaft through the clutch. At this time, the hand wheel is turned, and the driving shaft rotates accordingly. When the operator releases the hand wheel, the ratchet tends to rotate in the opposite direction due to the gravity on the chain, but the ratchet cannot rotate due to the blocking effect of the ratchet tongue, which also prevents the chain from moving, thereby maintaining the braking effect. When relief is required, the clutch is operated to separate the pinion from the driving shaft. At this time, the chain moves under the gravity, and drives the pinion to rotate relative to the driving shaft through the large gear, thereby achieving the relief operation.

[0005] The above hand brake device has the following main drawbacks during use: after long-term use, the friction resistance between the gears increases, and the staff needs to add lubricating oil regularly, which is troublesome to operate and time-consuming and labor-intensive. Therefore, there is room for improvement. Utility Model Content

[0006] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0007] To this end, the technical solution adopted by the utility model is: a self-lubricating hand brake device for a railway freight car, comprising: a main body module and a lubrication module, the main body module comprising a base plate, a structural support fixed on the base plate, a driving member rotatably mounted on one side of the structural support, a second rotating shaft rotatably mounted on the other side of the structural support, a large gear fixedly sleeved on the second rotating shaft and meshing with the driving member, and a steel chain with an end fixed on the large gear.

[0008] The lubrication module includes a shell fixed on the base plate, an extrusion piece movably arranged in the inner cavity of the shell and with its end extending out of the shell, a sponge block arranged in the inner cavity of the shell, an eccentric wheel fixed to one side of the large gear and connected to the extrusion piece, an oil injection pipe fixed to the top end of the shell and connected to the inner cavity of the shell, and an oil box installed on the top end of the shell through a threaded connection and connected to the inner cavity of the shell.

[0009] In a preferred example, the utility model can be further configured as follows: the driving member includes a first rotating shaft rotatably arranged on the structural frame, a small gear fixedly sleeved on the first rotating shaft, and a handwheel fixed on the end of the first rotating shaft, and the small gear is meshed with the large gear.

[0010] In a preferred example, the utility model can be further configured as follows: the extrusion member includes a movable pressure block movably arranged in the inner cavity of the shell, a support rod with one end fixed to the movable pressure block and the other end extending out of the shell, and a waist-shaped frame fixed to the end of the support rod.

[0011] In a preferred example, the utility model can be further configured as follows: an eccentric protrusion is fixed on the eccentric wheel, and the eccentric protrusion is embedded in the waist-shaped frame.

[0012] In a preferred example, the utility model can be further configured as follows: the fuel injection pipe is L-shaped, one end of which is connected to the inner cavity of the shell, and the other end is located above the meshing point of the large gear and the small gear, and a plurality of spray holes are arranged in an array on the fuel injection pipe.

[0013] In a preferred example, the utility model can be further configured as follows: a through hole is opened at the top end of the shell, and the oil box is connected with the inner cavity of the shell through the through hole.

[0014] In a preferred example, the utility model can be further configured as follows: an inner wall of the through hole is provided with an internal thread, and an end of the oil box is provided with an external thread, and the two are meshed with each other.

[0015] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0016] 1. In the utility model, a shell is fixed on one side of a bottom plate, and an extrusion piece with an end extending out of the shell is movably arranged in the inner cavity of the shell, and an eccentric wheel is fixed on the large gear, the eccentric wheel is connected to the end of the extrusion piece, a sponge block is arranged in the inner cavity of the shell, and an oil injection pipe connected to the inner cavity of the shell is installed at the top of the shell, and an oil box is installed at the top of the shell. When in use, the rotation of the driving piece drives the large gear to rotate, the rotation of the large gear drives the eccentric wheel to rotate, and the rotation of the eccentric wheel drives the extrusion piece to move in a cycle to repeatedly squeeze the sponge block. When the sponge block is squeezed, the lubricating oil therein seeps out and enters the oil injection pipe under the action of pressure and is sprayed between the large gear and the small gear to lubricate the two, thereby realizing self-lubrication of the hand brake device, avoiding the trouble of manually adding lubricating oil, and improving the convenience of use.

[0017] 2. In the utility model, the oil box and the housing are connected by threads, which is convenient for installation and disassembly. When the lubricating oil in the oil box is used up, it is only necessary to disassemble the oil box for replacement, which further increases the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;

[0020] Figure 3 It is a partial structural schematic diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the shell of the utility model;

[0022] Figure 5 It is a cross-sectional schematic diagram of the fuel injection pipe of the utility model.

[0023] Reference numerals:

[0024] 100, main body module; 110, bottom plate; 120, structural support; 130, driving member; 131, first rotating shaft; 132, small gear; 133, hand wheel; 140, second rotating shaft; 150, large gear; 160, steel chain;

[0025] 200, lubrication module; 210, housing; 211, through hole; 220, extrusion piece; 221, movable pressure block; 222, support rod; 223, waist frame; 230, sponge block; 240, eccentric wheel; 241, eccentric protrusion; 250, oil injection pipe; 251, spray hole; 260, oil box. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0027] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0028] Embodiment 1:

[0029] Combination Figure 1-5 As shown, this embodiment provides a self-lubricating hand brake device for a railway freight car, comprising: a main body module 100 and a lubrication module 200 .

[0030] Among them, the main body module 100 includes a base plate 110, a structural support 120 fixed on the base plate 110, a driving member 130 rotatably installed on one side of the structural support 120, a second rotating shaft 140 rotatably installed on the other side of the structural support 120, a large gear 150 fixedly sleeved on the second rotating shaft 140 and meshing with the driving member 130, and a steel chain 160 with an end fixed on the large gear 150.

[0031] The base plate 110 and the structural support 120 are both used to install other components to ensure the stability of each component. The driving member 130 is used to facilitate workers to rotate, thereby driving the large gear 150 to rotate, including rotating a first rotating shaft 131 set on the structural frame, a small gear 132 fixedly sleeved on the first rotating shaft 131, and a handwheel 133 fixed at the end of the first rotating shaft 131. The small gear 132 and the large gear 150 are meshed with each other, so that when the worker rotates the handwheel 133, the small gear 132 can be driven to rotate through the first rotating shaft 131. The rotation of the small gear 132 drives the large gear 150 to rotate, thereby driving the steel chain 160 on the large gear 150 to be released or retracted.

[0032] The second rotating shaft 140 is rotatably mounted on the structural support 120 and is used to mount the large gear 150 and ensure the stability of the large gear 150 when rotating. The end of the steel chain 160 is fixed on the large gear 150 so that when the large gear 150 rotates, it can drive the steel chain 160 to be released or retracted to achieve hand braking.

[0033] The lubrication module 200 is used to lubricate the large gear 150 and the small gear 132 to reduce the friction resistance between the two, including a shell 210 fixed on the base plate 110, an extrusion piece 220 movably arranged in the inner cavity of the shell 210 and with its end extending out of the shell 210, a sponge block 230 arranged in the inner cavity of the shell 210, an eccentric wheel 240 fixed on one side of the large gear 150 and connected to the extrusion piece 220, an oil injection pipe 250 fixed on the top end of the shell 210 and connected to the inner cavity of the shell 210, and an oil box 260 installed on the top end of the shell 210 through a threaded connection and connected to the inner cavity of the shell 210.

[0034] The shell 210 is sealed, and the extrusion piece 220 is used to extrude the sponge block 230 in the inner cavity of the shell 210, including a movable pressure block 221 movably arranged in the inner cavity of the shell 210, a support rod 222 with one end fixed to the movable pressure block 221 and the other end extending out of the shell 210, and a waist frame 223 fixed to the end of the support rod 222. The movable pressure block 221 is tightly attached to the inner wall of the shell 210 to prevent lubricating oil from leaking out during extrusion, and the support rod 222 is used to install the waist frame 223.

[0035] The eccentric wheel 240 is fixed on one side of the large gear 150, and an eccentric protrusion 241 is fixed on the eccentric wheel 240. The eccentric protrusion 241 is embedded in the waist frame 223. When the eccentric wheel drives the eccentric protrusion 241 to rotate, the eccentric protrusion 241 can drive the waist frame 223 to move back and forth in a cycle, and then drive the movable pressure block 221 to move back and forth in a cycle through the support rod 222, that is, the sponge block 230 is squeezed.

[0036] The sponge block 230 is used to store lubricating oil, and the oil spray pipe 250 is used to spray the lubricating oil. It is L-shaped, with one end connected to the inner cavity of the shell 210, and the other end located above the meshing point of the large gear 150 and the small gear 132. The oil spray pipe 250 is provided with a plurality of spray holes 251 in an array. When the sponge block 230 is squeezed, the lubricating oil therein seeps out and enters the oil spray pipe 250 under the action of pressure, and is sprayed through the spray holes 251 to between the large gear 150 and the small gear 132 to lubricate the two.

[0037] A through hole 211 is opened at the top of the shell 210, and the oil box 260 is connected with the inner cavity of the shell 210 through the through hole 211, so that the lubricating oil in the oil box 260 can enter the shell 210 through the through hole 211 to replenish the lubricating oil in the sponge block 230. In addition, an internal thread is arranged on the inner wall of the through hole 211, and an external thread is arranged at the end of the oil box 260, and the two are meshed with each other, so that the oil box 260 can be installed and disassembled conveniently, thereby increasing the convenience of use.

[0038] The working principle and use process of the utility model are as follows: when in use, the hand wheel 133 is rotated to drive the small gear 132 to rotate through the first rotating shaft 131, the small gear 132 rotates to drive the large gear 150 to rotate, the large gear 150 rotates to drive the eccentric wheel 240 to rotate, the eccentric protrusion 241 on the eccentric wheel 240 rotates, and drives the extrusion piece 220 to move in a circular manner to squeeze the sponge block 230. When the extrusion piece 220 moves toward the inner cavity of the shell 210 driven by the eccentric wheel 240, the sponge block 230 is squeezed. The hole 211 is closed, and the extrusion piece 220 squeezes the sponge block 230, so that the lubricating oil therein seeps out and enters the oil injection pipe 250 under the action of pressure and is sprayed through the spray hole 251 to between the large gear 150 and the small gear 132 to lubricate both. When the extrusion piece 220 is convenient to move away from the shell 210, the through hole 211 is opened, and the lubricating oil in the oil box 260 enters the inner cavity of the shell 210 through the through hole 211 and is absorbed by the sponge block 230, completing the replenishment of the lubricating oil, and then repeating the above steps.

[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A self-lubricating hand brake device for a railway freight car, comprising: A main body module (100) and a lubrication module (200), characterized in that the main body module (100) comprises a base plate (110), a structural support (120) fixed on the base plate (110), a driving member (130) rotatably mounted on one side of the structural support (120), a second rotating shaft (140) rotatably mounted on the other side of the structural support (120), a large gear (150) fixedly sleeved on the second rotating shaft (140) and meshing with the driving member (130), and a steel chain (160) with an end portion fixed to the large gear (150); The lubrication module (200) comprises a housing (210) fixed on a base plate (110), an extrusion piece (220) movably arranged in the inner cavity of the housing (210) and with an end extending out of the housing (210), a sponge block (230) arranged in the inner cavity of the housing (210), an eccentric wheel (240) fixed to one side of the large gear (150) and connected to the extrusion piece (220), an oil injection pipe (250) fixed to the top end of the housing (210) and in communication with the inner cavity of the housing (210), and an oil box (260) mounted on the top end of the housing (210) and in communication with the inner cavity of the housing (210) through a threaded connection.

2. A railway freight car self-lubricating hand brake device according to claim 1, characterized in that: The driving member (130) comprises a first rotating shaft (131) rotatably arranged on the structural frame, a small gear (132) fixedly sleeved on the first rotating shaft (131), and a hand wheel (133) fixed to the end of the first rotating shaft (131), wherein the small gear (132) meshes with the large gear (150).

3. A railway freight car self-lubricating hand brake device according to claim 1, characterized in that: The extrusion member (220) comprises a movable pressing block (221) movably arranged in the inner cavity of the shell (210), a support rod (222) with one end fixed to the movable pressing block (221) and the other end extending out of the shell (210), and a waist-shaped frame (223) fixed to the end of the support rod (222).

4. A railway freight car self-lubricating hand brake device according to claim 3, characterized in that: An eccentric protrusion (241) is fixed on the eccentric wheel (240), and the eccentric protrusion (241) is embedded in the waist-shaped frame (223).

5. The self-lubricating hand brake device for railway freight cars according to claim 1, characterized in that: The oil injection pipe (250) is L-shaped, one end of which is in communication with the inner cavity of the housing (210), and the other end of which is located above the meshing point between the large gear (150) and the small gear (132), and the oil injection pipe (250) is provided with a plurality of injection holes (251) in an array.

6. A railway freight car self-lubricating hand brake device according to claim 1, characterized in that: A through hole (211) is formed at the top end of the housing (210), and the oil box (260) is connected to the inner cavity of the housing (210) through the through hole (211).

7. A railway freight car self-lubricating hand brake device according to claim 6, characterized in that: An internal thread is provided on the inner wall of the through hole (211), and an external thread is provided on the end of the oil box (260), and the two are meshed with each other.

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