Connection structure of transmission shaft of brake clamp and lever and clamp casing of brake clamp
A brake caliper and connection structure technology, which is applied in the field of parts of brake devices, can solve problems affecting the flexibility of eccentric shafts, complex assembly processes, and affecting braking efficiency, and achieve weight reduction and system and processing technology The effect of low requirement and reduced diameter
Active Publication Date: 2015-01-07
CRRC CHANGZHOU TECH MARK IND CO LTD +1
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Problems solved by technology
Due to the use of two kinds of bearings, the assembly process is relatively complicated, and if one of the bearings fails, it will affect the flexibility of the rotation of the eccentric shaft and affect the braking efficiency; at the same time, there must be enough space in the clamp housing to place the eccentric shaft section and the bearing. Therefore, the volume and weight of the clamp are often larger than the general clamp, so the clamp with eccentric mechanism is not suitable for trains with small bogie space
Method used
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Embodiment Construction
[0020] The present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.
[0021] see Figure 1~4 As shown, a connection structure between a transmission shaft of a brake caliper and a lever and a clamp housing, including a lever 1, a transmission shaft 2 and a clamp housing 3, and the clamp housing 3 is provided with a mounting through hole 3- 1. The transmission shaft 2 passes through the installation through hole 3-1, and the two ends of the transmission shaft 2 are respectively connected with the force arm 1-6 of the lever 1. It also includes two eccentric bearings 4, two tapered bearings 5 and two End caps 6, the two end caps 6 are provided with end cap holes 6-1, the two end caps 6 are respectively fitted on the transmission shaft 2 through the respective end cap holes 6-1, and are connected to the installation through holes 3 respectively At the openings at both ends of -1, two conical bearings 5 are r...
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The invention discloses a connection structure of a transmission shaft of a brake clamp and a lever and a clamp casing of the brake clamp. The connection structure comprises the lever, the transmission shaft and the clamp casing. An installation through hole is formed on the clamp casing, the transmission shaft penetrates through the installation through hole, and two ends of the transmission shaft are connected with a form arm of the lever. The connection structure further comprises two eccentric bearings, two conical bearings and two end covers. End cover holes are formed on the two end covers, and the two end covers are sleeved on the transmission shaft through respectively end cover holes respectively and connected with hole openings at two ends of the installation through hole. The two conical bearings are located on the inner sides of the two end covers respectively, and the transmission shaft is in rotating fit with the clamp casing through the conical bearings. Two bearing holes are formed on the force arm of the lever, the two eccentric bearings are in tight fit with the corresponding bearing holes, and two ends of the transmission shaft are matched with inner rings of the corresponding eccentric bearings respectively. The connection structure is simple in structure, reduces production cost and can reduce the assembly space.
Description
technical field [0001] The invention relates to a component part of a brake device for a rail vehicle, in particular to a connection structure between a transmission shaft of a brake caliper, a lever and a caliper housing. Background technique [0002] The brake caliper is a key component of the rail transit braking device, which ensures that the rail transit can achieve parking braking within the specified braking distance. For trains running at a high speed, in order to meet the braking requirements of the train, the brake caliper is usually provided with a transmission mechanism with a force amplification function. At present, the transmission mechanism usually uses a wedge mechanism, an eccentric mechanism, a cam mechanism, etc. to amplify and transmit the braking force. The force magnification and transmission efficiency of the eccentric mechanism are superior to the wedge structure and the cam mechanism, so high-speed trains or trains with strict braking requirements ...
Claims
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IPC IPC(8): B61H13/20
CPCB61H13/20
Inventor 鲍春光雷国伟王永胜杜利清汪鹏
Owner CRRC CHANGZHOU TECH MARK IND CO LTD