CN2842075Y

CN2842075Y - High pressure high-water-base hydraulic brake

Info

Publication number: CN2842075Y
Application number: CN 200520079738
Authority: CN
Inventors: 周新建; 夏文学; 马胜利
Original assignee: Xian University of Science and Technology
Current assignee: Xian University of Science and Technology
Priority date: 2005-11-18
Filing date: 2005-11-18
Publication date: 2006-11-29
Anticipated expiration: 2015-11-18

Abstract

The utility model discloses a high pressure high-water-base hydraulic brake which comprises a machine casing having a front and a rear covers, wherein a connecting shaft of a motor is arranged at a central position in the machine casing and the end part of the connecting shaft is fixed with friction plates which are clamped between friction disks. A braking oil cylinder is arranged on the rear sides of the friction disks, and the front end surface of a piston working with the braking oil cylinder is pushed against the rear side surfaces of the friction disks. The front end surfaces of the friction disks are tightly attached to the front cover, and a spring for pushing the piston to brake is arranged between the piston and the rear cover. A releasing screw bolt for manual braking force release is screwed in a screw bolt hole on the piston through a screw bolt hole on the rear cover, and an abraded quantity measuring mechanism for the friction plates is also arranged in the machine casing. The utility model has the advantages that the design is reasonable, and the measurement of the abraded quantity of the friction plates is intuitively and conveniently realized. Furthermore, the sealing performance between the oil cylinder and the piston and the reliability of the manual braking force release are enhanced.

Description

The high pressure high water base fluid is pressed break

Technical field

The utility model relates to a kind of mechanical brake equipment, and particularly a kind of anti-skidding high pressure high water base fluid of coal winning machine safety that is used for is pressed break.

Background technique

At present, be by the measuring hole on the hydraulic brake bonnet to the detection of hydraulic brake friction disc wear amount, measure with gauge, because wear extent is little, be difficult to accurate observation; Discharge break or more during renewal of facing renewal, adopt the retardation pressure of screw retracting spring usually at no oil pressure, the stripped thread phenomenon often takes place, cause manual release to lose efficacy; In addition, use the sealing problem of high-pressure emulsification liquid medium also to need to be resolved hurrily.

The model utility content

The utility model is at the deficiency that prior art exists, and provides a kind of wear extent of friction plate to detect easily, cylinder seal is good, the reliable high pressure high water base fluid of manual release braking force is pressed break.

The technical solution of the utility model is: a kind of high pressure high water base fluid is pressed break, comprise and be provided with protecgulum 13, the casing 14 of bonnet 10, neutral position in the casing 14 is the coupling shaft 15 of motor, fixedly install friction plate 12 in the end of coupling shaft 15, friction plate 12 is sandwiched between the friction disk 16, brake cylinder 7 is arranged on friction disk 16 rear sides, withstand on the trailing flank of friction disk 16 with the front-end face of the piston 6 of brake cylinder 7 cooperatings, the leading flank of friction disk 16 is near protecgulum 13, being used for the spring 17 that pushing tow piston 6 brakes is arranged between piston 6 and the bonnet 10, the bolt hole of release bolt 9 on bonnet 10 that is used for manual release braking force is screwed in the bolt hole of piston 6, it is characterized in that: also be provided with a friction plate 12 wear extent feeler mechanisies in the described casing 14.

Described friction plate 12 wear extent feeler mechanisies comprise one be arranged on bearing pin 5 on the bonnet 10, be the lever 1 that rotating fulcrum vertically is provided with bearing pin 5, the upper end of lever 1 is horizontally connected with amplifies calibrated scale 2, amplify the outside that calibrated scale 2 graduated ends stretch out bonnet 10, the rear end of horizontally disposed measurement pin 3 is connected with lever 1 lower end, its front end withstands on the ear end face of piston 6, goring push spring 4 is horizontally set in the spring eye with the corresponding bonnet of lever 1 lower end position 10 inboards, and the front end of goring push spring 4 withstands on the back side of measuring pin 3 and lever 1 joint; The inboard wall of cylinder block of described brake cylinder 7 and piston 6 are provided with star seal ring 11; Be provided with release nut 8 between the end face of described release bolt 9 and bonnet 10, discharge nut 8 and be screwed on the screw rod that discharges bolt 9.

The utility model compared with prior art has the following advantages: the utility model is convenient to the detection of friction disc wear amount, has improved the sealing between piston and oil cylinder and the reliability of manual release braking force.

Description of drawings

Fig. 1 is a structural drawing of the present utility model.

Fig. 2 is the structural representation of the utility model friction disc wear amount detection machine structure.

Embodiment

The utility model will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, the utility model comprises and is provided with protecgulum 13, the casing 14 of bonnet 10, neutral position in the casing 14 is the coupling shaft 15 of motor, fixedly install friction plate 12 in the end of coupling shaft 15, friction plate 12 is sandwiched in 16 of friction disks, brake cylinder 7 is arranged on friction disk 16 rear sides, withstand on the trailing flank of friction disk 16 with the front-end face of the piston 6 of brake cylinder 7 cooperatings, the leading flank of friction disk 16 is near protecgulum 13, be used for the spring 17 that pushing tow piston 6 brakes and be arranged between piston 6 and the bonnet 10, the bolt hole of release bolt 9 on bonnet 10 that is used for manual release braking force is screwed in the bolt hole of piston 6.

As depicted in figs. 1 and 2, be provided with a friction disc wear amount detection machine structure in the described casing 14, it comprises a bearing pin 5 that is arranged on bonnet 10 inboards, be the lever 1 that fulcrum vertically is provided with bearing pin 5, lever 1 upper end is horizontally connected with amplifies calibrated scale 2, a graduated end stretches out bonnet 10 on the amplification calibrated scale 2, being convenient to personnel directly observes, an end of measuring pin 3 is connected lever 1 lower end, the other end withstands on the ear end face of piston 6, goring push spring 4 is arranged between the inner side surface of the lower end of lever 1 and bonnet 10, and the lower end of lever 1 is held out against to the direction of piston 6.After friction plate 12 wearing and tearing, piston 6 is under the thrust of spring 17, move to friction plate 12 directions, the measurement pin 3 that one end withstands on piston 6 ear end faces moves thereupon, under the elastic force effect of goring push spring 4, move to piston 6 directions lever 1 lower end, the amplification calibrated scale 2 of upper end is to the outer side shifting of bonnet 10, the bearing pin 5 that the ratio of the amount of movement of calibrated scale 2 and the amount of movement of measuring pin 3 equals lever 1 can be calculated the wear extent of friction plate with top and ratio with the bottom by moving the scale that changes on the calibrated scale 2.As shown in Figure 1, on the inboard wall of cylinder block of described brake cylinder 7 and the piston 6 star seal ring 11 is set, with the sealing of oil cylinder behind the raising use high-pressure emulsification liquid medium; Be provided with between the end face of described release bolt 9 and bonnet 10 and discharge nut 8, discharging nut 8 is screwed on the screw rod that discharges bolt 9, when manual release braking force is operated, to have the release bolt 9 that discharges nut 8 earlier is screwed in the bolt hole of piston 6 through the bolt hole on the bonnet 10, after discharging nut 8 and the back cap surface contact, at the stubborn nut 8 that discharges piston 6 is mentioned, thereby reduced the thread abrasion that discharges bolt 9 and piston 6 upper bolt holes, improve the reliability of manual release hydraulic braking force.

Claims

1, a kind of high pressure high water base fluid is pressed break, comprise and be provided with protecgulum (13), the casing (14) of bonnet (10), neutral position in the casing (14) is the coupling shaft (15) of motor, fixedly install friction plate (12) in the end of coupling shaft (15), friction plate (12) is sandwiched between the friction disk (16), brake cylinder (7) is arranged on friction disk (16) rear side, withstand on the trailing flank of friction disk (16) with the front-end face of the piston (6) of brake cylinder (7) cooperating, the leading flank of friction disk (16) is near protecgulum (13), being used for the spring (17) that pushing tow piston (6) brakes is arranged between piston (6) and the bonnet (10), the bolt hole of release bolt (9) on bonnet (10) that is used for manual release braking force is screwed in the bolt hole of piston (6), it is characterized in that: also be provided with a friction plate (12) wear extent feeler mechanism in the described casing (14).

2, high pressure high water base fluid according to claim 1 is pressed break, it is characterized in that: described friction plate (12) wear extent feeler mechanism comprises a bearing pin (5) that is arranged on the bonnet (10), with bearing pin (5) is the lever (1) that rotating fulcrum vertically is provided with, the upper end of lever (1) is horizontally connected with amplifies calibrated scale (2), the graduated end of amplification calibrated scale (2) stretches out the outside of bonnet (10), the rear end of horizontally disposed measurement pin (3) is connected with lever (1) lower end, its front end withstands on the ear end face of piston (6), in the spring eye that goring push spring (4) is horizontally set on and the corresponding bonnet of lever (1) lower end position (10) is inboard, the front end of goring push spring (4) withstands on the back side of measuring pin (3) and lever (1) joint.

3, high pressure high water base fluid according to claim 1 and 2 is pressed break, and it is characterized in that: the inboard wall of cylinder block of described brake cylinder (7) and piston (6) are provided with star seal ring (11).

4, high pressure high water base fluid according to claim 3 is pressed break, it is characterized in that: be provided with release nut (8) between the end face of described release bolt (9) and bonnet (10), discharge nut (8) and be screwed on the screw rod that discharges bolt (9).