Roller cage shoe for vertical shaft cage

Abstract

The roller cage shoe for the vertical shaft cage comprises a base, a support, a buffer shell, a first supporting plate, a second supporting plate and a roller, a piston is arranged at the left end of the top of the support, a pressing plate is arranged on the lower portion of the piston, and an end cover is arranged on the top of the buffer shell. A sleeve is arranged in the buffer shell, a first buffer spring is arranged in the sleeve, the sleeve is sleeved with a second buffer spring, a first one-way valve is arranged at the bottom of the left side of the sleeve, a second one-way valve is arranged at the bottom of the right side of the sleeve, and a third one-way valve is arranged at the bottom of the right side of the buffer shell. According to the roller cage shoe buffering device, the first buffering spring, the second buffering spring and hydraulic oil are used for buffering at the same time, and the buffering effect of the roller cage shoe is improved.

Description

Technical Field

[0001] The invention relates to the technical field of roller tank ears, in particular to a roller tank ear for a vertical shaft cage. Background Art

[0002] The roller lug is a component used in the tank cage in the shaft. The roller lug plays a buffering role during the operation of the tank cage to improve the safety of the tank cage operation. For example, the buffer in the roller lug bracket and roller lug (patent number: CN202022335138.0) disclosed in Chinese patent literature uses a spring for buffering and shock absorption. If the spring is used alone, the spring strength will decrease after long-term use, and the buffering effect will be poor, affecting the safe operation of the tank cage. For the buffer using a hydraulic structure, if the buffer sealing structure ages after long-term use and the hydraulic oil leaks, the buffer will directly lose its buffering effect, affecting the safe operation of the tank cage.

[0003] For this purpose, we propose a roller ear for a shaft cage. Summary of the invention

[0004] The object of the present invention is to provide a roller ear for a shaft cage to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a roller ear for a shaft cage, comprising a base, a bracket, a buffer shell, a first support plate, a second support plate and a roller, a piston is arranged at the left end of the top of the bracket, a pressure plate is arranged at the lower part of the piston, an end cover is arranged at the top of the buffer shell, a sleeve is arranged in the buffer shell, a first buffer spring is arranged in the sleeve, a second buffer spring is sleeved on the sleeve, a first one-way valve is arranged at the bottom of the left side of the sleeve, a second one-way valve is arranged at the bottom of the right side of the sleeve, a third one-way valve is arranged at the bottom of the right side of the buffer shell, and a connecting rod is arranged at the bottom of the buffer shell.

[0006] Preferably, the piston passes through the end cover and extends into the sleeve, the piston and the end cover are movably connected, and a sealing ring is provided at the connection between the end cover and the piston.

[0007] Preferably, the pressure plate is fixedly connected to the piston.

[0008] Preferably, the fluid flows through the first one-way valve and the second one-way valve in opposite directions, and the fluid flows through the second one-way valve and the third one-way valve in the same direction.

[0009] Preferably, both ends of the bracket are connected to the piston and the second support plate via pins.

[0010] Preferably, the bottom of the connecting rod is connected to the first supporting plate via a pin.

[0011] Compared with the prior art, the beneficial effect of the present invention is that the device uses the first buffer spring, the second buffer spring and the hydraulic oil for buffering at the same time, thereby improving the buffering effect of the roller tank ear, thereby enhancing the safety of the roller tank ear. Even if the hydraulic oil leaks due to aging of the sealing structure for a long time, the first buffer spring and the second buffer spring can still achieve the buffering effect, thereby further enhancing the safety of the roller tank ear. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is an enlarged view of point A of the present invention.

[0013] In the figure: 1. base; 2. bracket; 3. buffer housing; 4. piston; 5. end cover; 6. pressure plate; 7. sleeve; 8. first buffer spring; 9. second buffer spring; 10. first one-way valve; 11. second one-way valve; 12. third one-way valve; 13. first support plate; 14. second support plate; 15. connecting rod; 16. roller. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-2The present invention provides a technical solution: a roller ear for a shaft cage, comprising a base 1, a bracket 2, a buffer shell 3, a first support plate 13, a second support plate 14 and a roller 16, a piston 4 is arranged at the left end of the top of the bracket 2, a pressure plate 6 is arranged at the lower part of the piston 4, an end cover 5 is arranged at the top of the buffer shell 3, a sleeve 7 is arranged in the buffer shell 3, a first buffer spring 8 is arranged in the sleeve 7, a second buffer spring 9 is sleeved on the sleeve 7, a first check valve 10 is arranged at the bottom of the left side of the sleeve 7, a second check valve 11 is arranged at the bottom of the right side of the sleeve 7, a third check valve 12 is arranged at the bottom of the right side of the buffer shell 3, and a connecting rod 15 is arranged at the bottom of the buffer shell 3. During the assembly process of the roller ear, hydraulic oil is added to the sleeve 7, the hydraulic oil in the sleeve 7 is filled, and the sleeve 7 and the buffer shell 3 are connected. The hydraulic oil filling level line in the space is higher than the second one-way valve 11. When the roller 16 is impacted, the piston 4 moves downward, and at the same time, the pressure plate 6 is driven to move downward. The first buffer spring 8 and the second buffer spring 9 buffer the piston 4. At the same time, the piston 4 moves downward, squeezing the hydraulic oil in the sleeve 7. The hydraulic oil flows through the first one-way valve 10 to the space between the sleeve 7 and the buffer housing 3. The hydraulic oil further buffers the piston 4. The device uses the first buffer spring 8, the second buffer spring 9 and the hydraulic oil for buffering at the same time, thereby improving the buffering effect of the roller tank ear, thereby enhancing the safety of the roller tank ear. Even if the hydraulic oil leaks due to aging of the sealing structure for long-term use, the first buffer spring 8 and the second buffer spring 9 can still achieve the buffering effect, thereby further enhancing the safety of the roller tank ear.

[0016] Reference embodiment: the piston 4 extends through the end cover 5 into the sleeve 7, the piston 4 and the end cover 5 are movably connected, a sealing ring is provided at the connection between the end cover 5 and the piston 4, and the pressure plate 6 is fixedly connected to the piston 4.

[0017] Reference embodiment: the fluid flows in opposite directions through the first one-way valve 10 and the second one-way valve 12, and in the same direction through the second one-way valve 11 and the third one-way valve 11. The piston 4 moves downward to pressurize the hydraulic oil in the sleeve 7. The hydraulic oil can only flow into the space between the sleeve 7 and the buffer housing 3 through the first one-way valve 10, and cannot flow into the space between the sleeve 7 and the buffer housing 3 through the second one-way valve 11. At the same time, the first buffer spring 8 lifts the piston 4, and the hydraulic oil between the sleeve 7 and the buffer housing 3 can only return to the sleeve 7 through the second one-way valve 11.

[0018] Reference embodiment: Both ends of the bracket 2 are connected to the piston 4 and the second support plate 14 via a pin, and the bottom of the connecting rod 15 is connected to the first support plate 13 via a pin.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller ear for a shaft cage, comprising a base (1), a bracket (2), a buffer housing (3), a first support plate (13), a second support plate (14) and a roller (16), characterized in that: A piston (4) is arranged at the left end of the top of the bracket (2), a pressure plate (6) is arranged at the bottom of the piston (4), an end cover (5) is arranged at the top of the buffer housing (3), a sleeve (7) is arranged inside the buffer housing (3), a first buffer spring (8) is arranged inside the sleeve (7), a second buffer spring (9) is sleeved on the sleeve (7), a first one-way valve (10) is arranged at the bottom of the left side of the sleeve (7), a second one-way valve (11) is arranged at the bottom of the right side of the sleeve (7), a third one-way valve (12) is arranged at the bottom of the right side of the buffer housing (3), and a connecting rod (15) is arranged at the bottom of the buffer housing (3).

2. The roller ear for a shaft cage according to claim 1, characterized in that: The piston (4) passes through the end cover (5) and extends into the sleeve (7). The piston (4) and the end cover (5) are movably connected. A sealing ring is provided at the connection between the end cover (5) and the piston (4).

3. The roller ear for a shaft cage according to claim 1, characterized in that: The pressure plate (6) is fixedly connected to the piston (4).

4. The roller ear for a shaft cage according to claim 1, characterized in that: The first one-way valve (10) and the second one-way valve (11) have opposite fluid flow directions, while the second one-way valve (11) and the third one-way valve (12) have the same fluid flow direction.

5. The roller ear for a shaft cage according to claim 1, characterized in that: Both ends of the bracket (2) are connected to the piston (4) and the second support plate (14) via pins.

6. The roller ear for a shaft cage according to claim 1, characterized in that: The bottom of the connecting rod (15) is connected to the first supporting plate (13) via a pin.

Images