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CN-119503670-B - Variable moment braking anti-skid system

CN119503670BCN 119503670 BCN119503670 BCN 119503670BCN-119503670-B

Abstract

The invention provides a variable torque braking anti-skid system which comprises a push rod type disc brake, an electrohydraulic push rod type brake and a control system, wherein the push rod type disc brake is arranged on a cart assembly close to a driving source to brake a brake disc on a coupling of the driving source, the electrohydraulic push rod type brake is arranged on a wheel frame of the cart assembly to brake wheels, and the control system is used for sending instructions to the push rod type disc brake and the electrohydraulic push rod type brake according to real-time working conditions of a quay crane, and the push rod type disc brake and the electrohydraulic push rod type brake determine corresponding braking torque values based on the received instructions. According to the variable moment braking anti-skid system provided by the embodiment of the invention, braking moment setting can be carried out according to different working conditions of the shore bridge so as to realize braking, and wheel skidding under the condition of tight stop is prevented.

Inventors

  • ZHANG FENGFENG
  • ZHOU LEI
  • FEI WENHAO

Assignees

  • 上海振华重工(集团)股份有限公司

Dates

Publication Date
20260505
Application Date
20241021

Claims (6)

  1. 1. A variable torque brake anti-skid system, comprising: the push rod type disc brake is used for being installed on the cart assembly close to the driving source so as to brake a brake disc on a coupling of the driving source; the electro-hydraulic push rod type brake is used for being arranged on a wheel frame of the cart assembly so as to brake wheels; the control system is used for sending instructions to the push rod type disc brake and the electro-hydraulic push rod type brake according to real-time working conditions of the quay crane, and the push rod type disc brake and the electro-hydraulic push rod type brake determine corresponding braking moment values based on the received instructions; the push-rod type disc brake includes: A Z-base for mounting on a cart assembly; the pair of main body arm frames are arranged up and down oppositely, and one ends of the pair of main body arm frames are respectively hinged with the outer ends of the upper surface of the Z-shaped base; The pair of first brake blocks are respectively connected to the pair of main body arm frames in an up-down corresponding manner and used for clamping the brake discs of the shaft coupling up and down to keep a braking state; The output end of the first power unit is connected with the other end of the main body arm support above the first power unit; The automatic wear compensator is characterized in that one end of the automatic wear compensator is close to the other end of the main body arm support above and is connected with the output end of the first power unit, and the other end of the automatic wear compensator is pivoted with the other end of the main body arm support below; the elastic component is vertically arranged between the first power unit and the main body arm support, the bottom end of the elastic component is connected with the lower surface of the Z-shaped base, and the top end of the elastic component is connected with the output end of the first power unit; the first power unit includes: The propeller is vertically arranged on the lower surface of the Z-shaped base, One end of the connecting rod is pivoted with the top of the propeller, the other end of the connecting rod is pivoted with the other end of the main body arm support above, the upper end of the automatic wear compensator is connected with the other end of the connecting rod, and the top end of the elastic component is connected with the middle part of the connecting rod; the proportional valve is connected with the propeller; wherein, the proportional valve controls the propeller to extend up and down to drive the connecting rod to swing so as to control the opening/closing of the pair of main body arm frames; the push rod type disc brake further comprises a wear limiting device, wherein the wear limiting device is arranged on the main body arm support close to the first brake block and is used for detecting the wear amount of the first brake block; The push rod type disc brake further comprises a release limiting device, wherein the release limiting device is arranged on the connecting rod and used for detecting the action amplitude of the connecting rod so as to monitor the opening or closing state of the pair of main body arm frames in real time.
  2. 2. The variable torque brake anti-skid system of claim 1, wherein a top end of said resilient assembly is connected to a middle portion of said connecting rod by an adjustment bolt.
  3. 3. The variable torque brake anti-skid system of claim 1, wherein said electro-hydraulic push rod brake comprises: The second power unit is used for being installed on a wheel frame of the cart assembly; the wheel clamping device is used for being installed on a wheel; and the main hydraulic pipe is connected with the second power unit and the wheel clamping device.
  4. 4. A variable torque brake slip system as claimed in claim 3, wherein the wheel clamp comprises one or two.
  5. 5. A variable torque brake slip system according to claim 3, wherein the wheel clamp comprises: The clamping seat is in a shape like a Chinese character 'ji', and is used for being installed on a wheel; The pair of hydraulic push rods are oppositely arranged at the two side end parts of the clamping seat; The pair of second brake blocks are respectively connected with the end parts of the pair of hydraulic push rods, which extend into the inner sides of the clamping seats; One end of each pair of the split hydraulic pipes is respectively connected with a pair of the hydraulic push rods, the other end of each pair of the split hydraulic pipes is respectively connected with a hydraulic joint, and the hydraulic joints are connected with the main hydraulic pipes.
  6. 6. The variable torque brake anti-skid system of claim 5, wherein said wheel clamp further comprises a cleaning device mounted to the bottom of both side ends of said clamp base.

Description

Variable moment braking anti-skid system Technical Field The invention relates to the field of quay crane equipment, in particular to a variable moment braking anti-skid system. Background As intermodal sea and air transport becomes more common, wharfs with limited height become more and more, and in this case, a new girder horizontal sliding type low-attitude quay bridge has been developed. Different from the conventional shore bridge girder which adopts pitching action to realize the ship work condition, the novel shore bridge girder adopts a horizontal sliding movement mode to retract or extend so as to realize the ship work or the ship loading and unloading work, and well solves the problem that the aviation safety of the conventional shore bridge is influenced by the ultrahigh. The brake system is one of the most important subsystems in the quay crane, and is a basic guarantee for the safety and reliability of the operation of the quay crane. The braking system of the conventional quay crane is composed of a high-speed brake and a low-speed brake, and a constant moment braking system is adopted. Different from a conventional shore bridge, the wheel pressure of the horizontal sliding type shore bridge is influenced by factors such as wind speed and wind direction, running direction, girder position, trolley position and the like, and the wheel pressure difference is extremely large under different working conditions, so that the maximum static friction force which can be provided by each angle under each working condition is extremely large, if the maximum static friction force is set according to a conventional constant moment, the braking force of a brake can be far larger than the maximum static friction force of a wheel, and therefore, the wheel is slipped when dangerous emergency braking is needed, the wheel tread is damaged, and extremely high replacement cost is generated. Disclosure of Invention In view of the above, the present invention provides a variable torque braking anti-skid system, which can set a braking torque according to different working conditions of a quay crane to realize braking and prevent wheel slip under a tight stop condition. In order to solve the technical problems, the invention adopts the following technical scheme: A variable torque brake anti-skid system according to an embodiment of the present invention, comprising: the push rod type disc brake is used for being installed on the cart assembly close to the driving source so as to brake a brake disc on a coupling of the driving source; the electro-hydraulic push rod type brake is used for being arranged on a wheel frame of the cart assembly so as to brake wheels; And the control system is used for sending instructions to the push rod type disc brake and the electro-hydraulic push rod type brake according to the real-time working condition of the quay crane, and the push rod type disc brake and the electro-hydraulic push rod type brake determine corresponding braking moment values based on the received instructions. Further, the push rod type disc brake includes: A Z-base for mounting on a cart assembly; the pair of main body arm frames are arranged up and down oppositely, and one ends of the pair of main body arm frames are respectively hinged with the outer ends of the upper surface of the Z-shaped base; the pair of first brake blocks are respectively connected to the pair of main body arm frames in an up-down corresponding manner; The output end of the first power unit is connected with the other end of the main body arm support above the first power unit; The automatic wear compensator is characterized in that one end of the automatic wear compensator is close to the other end of the main body arm support above and is connected with the output end of the first power unit, and the other end of the automatic wear compensator is pivoted with the other end of the main body arm support below; the elastic component is vertically arranged between the first power unit and the main body arm support, the bottom end of the elastic component is connected with the lower surface of the Z-shaped base, and the top end of the elastic component is connected with the output end of the first power unit. Further, the first power unit includes: The propeller is vertically arranged on the lower surface of the Z-shaped base, One end of the connecting rod is pivoted with the top of the propeller, the other end of the connecting rod is pivoted with the other end of the main body arm support above, the upper end of the automatic wear compensator is connected with the other end of the connecting rod, and the top end of the elastic component is connected with the middle part of the connecting rod; A proportional valve connected with the propeller, The propeller is controlled to stretch up and down through the proportional valve so as to drive the connecting rod to swing, and the opening/closing of the main body arm support is controlled. Furth