JPS58500577A - Improved brake assembly - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] brake assembly The present invention provides an improved brake assembly, and in particular a brake assembly that can be used with hydraulic motors. Relating to rake assemblies, but not intended for use only with such motors. do not have.

The invention relates to a power plan for a power plant, and especially in combination with a winch. It has a wide range of uses as a brake means related to motor vehicles. Such a winch is a vehicle Even if they are relatively small such that they can be attached to May be large industrial types used at construction sites and elsewhere to lift construction materials. .

Brake structures currently installed on such winches and drive assemblies is generally applied to the brake drum either manually or automatically as desired. It is a tension band type with an outer band that can be tightened. . The disadvantage of such a construction is that the brake drum does not have enough This is relatively troublesome because it has to be as wide as possible. Besides, like that The brakes are exposed and this greatly shortens the life of the brakes. creating dangerous working conditions for workers, and also exposing and moving objects that are Provide machinery. Additionally, the brake assembly can be tailored to fit a specific application. Since they are manufactured to order, they are generally attached to the equipment being driven.

The object of the invention is an improved brake which eliminates the above-mentioned drawbacks in its aspects. is to provide assembly. Another object of the present invention is to Easy-to-install motor and brake assembly and companion unit Improved brake gear that can be easily adapted to drive motors such as hydraulic motors as The aim is to provide assembly.

In yet another aspect, the drawbacks of the aforementioned prior art devices are avoided and the operation is reliable. Provides an improved winch assembly that is sure to be reliable and versatile The purpose is to Other objects and benefits of the invention will become apparent later.

In view of the foregoing and other objects, in its aspects the invention broadly comprises: a support means; a rotary brake assembly having a braking surface and a rotary brake assembly having a braking surface; a brake pad assembly supported by said support means for engagement; an actuating hand for forcing the brake pad assembly and the brake plate into engagement; An improved brake assembly includes a stage.

Preferably said actuating means is biased towards a braking position and said actuating means A release means is provided which is operative to hold the inactivated position. Preferably the operation The means is spring biased toward the brake position and the release means is a fluid actuated ram assembly. Including Mburi.

Also when this brake assembly is suitable for use with hydraulic motors, Preferably, the dynamic ram assembly is operatively connected to a fluid source for the motor; During operation of the motor, the p release means is activated until the fluid supply to the hydraulic motor is stopped. the actuating means is moved to the non-actuating position, and when the supply stops, the offsetting means engages the actuating means. Move it to the correct position.

Preferably said brake plate is bounded on both sides by a pair of brake pads. one of the brake pads is a fixed pad and the other is a brake pad. The rotary shaft of the plate can be rotated, and when rotated, the brake pad Tilt the hand so that the pad moves axially toward or away from the brake pad. A movable pad operatively associated with the steps. Preferably, the tilted plate is Cooperative helical faces on dynamic brake plates and support structures , and preferably helical faces are spaced around said brake pad. provided on the cooperating insert.

In yet another aspect, the invention broadly comprises a motor and a brake assembly. A brake that can be attached to a motor for easy attachment to the device to be driven. an assembly, the brake assembly being of the type described above, and the brake plate has a first mounting portion securable to a drive shaft of a motor; and a second mounting part suitable for connection to the device to be driven. supported on the adapter.

Preferably, the structure is such that the second mounting portion is substantially in contact with the drive shaft of the motor. are identical and their relationship to the mounting structure provided on the brake assembly is The brake assembly is substantially identical to the mounting relationship on the motor to which it is connected. , thereby attaching the brake assembly to the motor, thereby fixing the motor. It can be attached directly to the device to be driven, which is equipped with a fitting for this purpose.

In yet another aspect, the invention provides a wheel mounted for rotation within a support frame. a bench drum, substantially as described above, coupled thereto for rotating said drum; The winch assembly has the same motor and brake assembly as the .

Preferably the winch drum is provided with mounting means at each end thereof, whereby the motor and and brake assemblies can be supported at either end of the drum. .

Also, the brake plate is axially aligned so that it is secured between each brake pad. It is preferably secured to an adapter with splined grooves to allow movement. stomach. For this purpose, the brake plate is fitted with a splined grooved connection to the doubler. or the like, in which case the adapter connects to the output shaft of the motor. Also equipped with spline slotted fittings for connection to lift and winch drums. good.

Brake assemblies also prevent gravel and other foreign objects from entering the brake assemblies. Preferably, the device is housed within a housing to eliminate the possibility of Of course the latter is Single plate brake assembly (or multiple play) brake assembly if desired ・Rideyoshi).

In order to facilitate understanding and implementation of the present invention, a winch assembly is illustrated. Reference is now made to the accompanying drawings, which illustrate preferred embodiments of the invention.

FIG. 1 is a partial cross-sectional view of one end of a winch assembly made in accordance with the present invention. Ru.

Figure 2 shows a cross-section of the brake assembly along a2-2↓ in Figure 1 in the disengaged position. It is a front view.

Figure 3 is similar to Figure 2, with the brake assembly in the engaged position. This is a drawing showing that.

Figure 4 shows the helical insert of brake assembly 1 in its overall disengaged position. FIG. 3 is a side view and plan view of cooperation.

FIG. 5 illustrates the helical insert in the engaged position.

FIG. 6 is a plan view, side view, and end view of an insert made generally in accordance with one aspect of the present invention. and the reverse side is illustrated.

The winch assembly IJ 10 in FIG. End flange on central shaft 13 by bearing 14 for rotation about 15 The winch drum 11 is supported between wheels 12 (only one of which is shown).

At each end of the housing 16G the brake assembly 71-8 bolts to it. It is equipped with an opening 17 with a plurality of openings that can be stopped, and the brake assembly + notch or It has an opening 19 into which a hydraulic motor 20 can be attached. Grooved connecting member 21 is an internal spline 22 for connection to the output shaft 23 of the motor 20; , and in corresponding internal splines provided and cut at both ends of the central shaft 13. and an external spline 24 suitable for engagement.

The brake plate 26 is mounted around or to the splined grooved connection member 21. a disk-shaped member fixed concentrically for rotation therewith; and the disk a fixed plate assembly 27 on one side of the disc and a movable plate assembly 27 on the opposite side of the disc. The rake pad assembly 28 is supported between the rake pad assembly 28 and the rake pad assembly 28 . Each brake pad is illustrated A facing 29 is provided so as to The movable brake pad assembly 28 is around a hub portion 30 on a fixed housing 31 of brake assembly 18; is in the form of an annular disc capable of rotating, and has complementary annular recesses 32 and 3. 3 is formed on the mating surfaces of the brake band 28 and the fixed housing, as shown in FIG. It accommodates multiple pairs of helical inserts 34 as best shown. Each i The inserts are identical and snugly housed within their respective recesses 32 and 33. and each insert 34 is massaged to place them in their operative position. Locking boss 3 suitable for being placed into recesses 32 and 33 in a lowering machine 5. Furthermore, the brake pad 28 has a hole for housing the actuating lever 37. A recess 36 is provided, and the lever is supported on a fixed housing 31 as shown. Projecting radially from the recess for connection to the actuation shaft 38 of the actuation means.

Actuation means 39 includes a water column assembly 40 with a piston 41, The spring is biased toward the engaged position by the coil spring 42 as shown in FIG. . The actuation assembly 39 further includes an inlet opening 43 so that the cylinder 44 is placed in fluid communication with a fluid source to the hydraulic motor, and the piston and spring are connected to the cylinder. The normal working fluid pressure of the hydraulic motor applied to the spring 44 causes the piston 41 to It is designed to push against forces into the uncoupled position shown in FIG. this position , the cooperating inserts 34 have their respective helically inclined surfaces 4 5 is moved to a position where the brake pad 28 is in close contact with the fixed housing 31. Turn the rotation of the sea urchin shaft 15. Restricting the movement of the piston 41 to the uncoupled position Therefore, an adjustable stop assembly 50 is provided, the construction of which allows the piston 41 to to this position under the influence of a fluid pressure considerably lower than the normal operating fluid pressure of the motor 20. It's meant to be moved. Stop assembly 50 is disposed inside coil spring 42. The spring has a tight contact portion 51 located therein, so that the spring cannot be compressed to the bottom position. do not have. However, when the fluid supply to the hydraulic motor 20 stops, the cylinder - 44 is released and spring 42 immediately pulls shaft 38 into the cylinder. , move the actuating lever 37 to its engaged position, and then push the brake pad 28 out of the way. At the same time, it is rotated around the shaft 15. This means that each inclined surface 45 is move across each other, and the brake band 28 separates from the housing 31 and brakes. This causes the material to be pushed out toward the key plate 26. brake plate 2 6 is supported on the spline grooved connecting member 21, so that it is not initially aligned in the axial direction. until it is securely sandwiched between the brake pad 28 and fixed pad 26. Ku. This immediately connects the winch drum 11 and motor output shaft 23 to the motor. brakes until the motor 20 stops, and this braking effect is applied again by the motor 20. The hydraulic pressure applied to the cylinder 44 is then maintained until the brake is will release the means.

The surface of the helical insert is machined in the same helical shape as the screw thread, and -When the keypad 28 rotates, regardless of the relative operative positions of the opposing inserts, so that full surface contact is maintained between them. This is a breaker. to ensure efficient operation of the keys and, e.g. to ensure that accidental locking due to the pawls that can occur when machine Since the accuracy of machining and surface finishing and the properties of the helical surface 35 are extremely important, , the insert 34 can be precisely manufactured to ensure accuracy of operation. .

Instead, if inserts are not used, the parts can be made larger and heated. processing, which would be an expensive manufacturing process. but In some cases it may be advantageous to have such a structure.

[1 Brake pad 27 is attached to the housing by a through bolt that engages with threaded opening 17. 31 and the winch assembly, and the movable pad 28 will be seen to be in close relationship to the face of housing 31. Bree The heat generated during the brake operation is transferred to the brake drum by conduction through the heavy metal housing. and the motor 20. Moreover, the housing 31 is located on the motor 20. has a recess at 46 for placement on the hub of the brake assembly. It can be seen that the total length of yellowtail in the axial direction is relatively short. This is Winchia It is advantageous to keep the overall length of the assembly as short as possible. However, certain If the winch is installed to provide adequate clearance at one end of the If the motor and brake assembly cannot be changed, do not modify the equipment further. Simply move it to the opposite end of the winch for attachment without needing a winch (not shown). The other end of the head drum assembly 10 is the same as the end shown, thereby ) 13 is supported by a support housing 16 at each end and is It is understood that this does not depend on the motor. Also, if you wish, Winchia The hoisting capacity of the assembly is limited by motor and/or brake assemblies at both ends. It can be doubled by installing.

Other means can be used to actuate the brake assembly. For example, movable A circumferential worm drive can be used to rotate the brake pads, The key assembly can be used with electric motors, internal combustion engines, etc. However, in such a case an auxiliary hydraulic supply source may be used to operate the actuating means 39. Mechanical or electrical means can be used to move it into the active position. for example , if automatic activation is not required or required, a simple manual override or Actuation means may be provided.

The structure of the illustrated insert for actuating the brake pad 28 may vary depending on the application. It can be changed. For example, one fully circular or two semi-circular inserts are shown. An alternative to the three-wooden insert 34 shown can be provided and, of course, a helical bevel. The angle of the beveled surface can be varied as desired.

When we refer to a hydraulic motor here, we are referring to any fluid-operated motor, such as an air motor. It should be interpreted as

The brake assembly of the present invention has a predicted service life of the stem that requires safe operation against failure. Due to the presence of abrasive materials that typically shorten the It can also be used conveniently for other purposes.

Such and other modifications and variations of this invention that are obvious to those skilled in the art are included in the claims. should be considered to be within the broader scope and spirit of the invention as defined in the scope of the invention. Ru.

Procedure supplement (formula) February 4, 1982 Commissioner of the Patent Office 1° Incident'')! International application number PCT/AtT82100053 Showa year patent Request number 2. Name of the invention Improved brake assembly 3. Person who provides compensation Relationship to the incident: Patent applicant Name: Redmond, Gary, Proprietary, Limited 1988 13th of the month 6. Description without number of inventions increased by amendment Improved brake assembly The present invention provides an improved brake assembly, and in particular a brake assembly that can be used with hydraulic motors. Relating to rake assemblies, but not intended for use only with such motors. do not have.

The invention relates to a power plan for a power plant, and especially in combination with a winch. It has a wide range of uses as a brake means related to motor vehicles. Such a winch is a vehicle Even if they are relatively small such that they can be attached to May be large industrial types used at construction sites and elsewhere to lift construction materials. .

Currently, there are two brake structures attached to such winches and drive assemblies. is generally applied to the brake drum around the drum, either by hand or automatically as desired. It is a tension band type with an outer pan ° that can be tightened. . The disadvantage of such a structure is that the brake drum is not large enough to provide the necessary friction area. This is relatively troublesome because it has to be as wide as possible. Besides, that's it. The brakes are exposed and this greatly shortens the life of the brakes. 7. Create working conditions that are dangerous to workers, and We provide all the machines. The brake assembly is then tailored to suit the particular application. It is manufactured in 7 orders and is generally attached to the device being driven.

It is an object of the present invention to provide a revised international search report which eliminates the above-mentioned drawbacks in its aspects.

Claims (1)

[Claims] 1. a support means; a rotatable brake plate assembly having a brake surface; a brake supported by said support means for selective engagement with said brake surface; a pad assembly, the brake pad assembly and the brake plate; and actuating means for forcing the rake assembly. 2. The brake pad assembly is directed toward the brake plate assembly. or in the opposite direction, and the actuating means is the movable brake. - complementary mating elements provided on the keypad assembly and said support means, respectively; the brake pad assembly relative to the support means; The pressing is the driving force for producing relative actuation motion between the complementary mating inclined faces. 2. The brake assembly of claim 1, further comprising moving means. 3. Each of said complementary sloped faces has a substantially helical shape as claimed in claim 2. brake assembly. 4. The inclined face is connected to the movable brake pad assembly and the support means. Claims 2 or 3 formed on an insert that can be removed from the brake assembly. 5. The inserts respectively fit the movable brake pad assembly and the support. disposed in respective annular grooves extending concentrically around the retaining means, said insert Claim 4, further comprising connecting means for fixing the ports in their respective grooves. brake assembly. 6. The groove in the movable brake pad assembly is connected to the brake plate assembly. A brake assembly according to claim 5 formed on its side remote from the assembly. Li. 7. The brake plate assembly is fixed to the movable brake pad assembly. Claims 1 to 3 supported between a fixed brake pad assembly and a fixed brake pad assembly. Brake assembly according to any of item 6. 8. The brake plate assembly is placed on a rotatable member to be braked. The brake plate assembly is adapted to be supported by the brake plate assembly. The brake according to claim 7, which is movable along the axis of rotation of the rotatable member. assembly. 9. The actuation means includes a drive hand for actuating the movable brake pad assembly. the drive means includes a step for biasing the brake pad assembly into an engaged position; a shifting means for shifting, and a movable brake for riding over the shifting means and the movable brake. including a riding means suitable for moving the pad assembly to a disengaged position; A brake assembly according to any one of claims 2 to 8. 10. The biasing means is in the form of a spring, and the overriding means is a flow actuated lamp. 10. The brake assembly of claim 9 in the form of a brake assembly. 11. The fluid-operated ram is configured to provide hydraulic power to be braked by the brake assembly. A hydraulic ram suitable for being placed in fluid communication with a motor, the structure of which During operation of the motor, the fluid-operated ram rides over the biasing means and engages the brake arm. The brake assembly of claim 10 adapted to release the assembly. . 12. The support means is a hub housing the rotatable brake plate assembly. The brake plate assembly is in the form of a housing, and the brake plate assembly is attached to the rotating member to be braked. Claim 1 is supported for rotation about an axle means engageable with the The brake assembly according to any of Item 11. 13. A winch drum mounted on a support frame for rotation and said winch. drive means for rotating the drum and a claim supported on said support frame; and a brake assembly according to any one of paragraphs 1 to 12 above. The rotatable brake plate assembly rotates with the winch drum. Winch assembly supported for. 14. The support frame supports the winch drum relative to the brake assembly. A winch assembly according to claim 13 providing interchangeable mounting at both ends. Li. 15. The drive means is separated from the support frame by the brake assembly. and the brake plate assembly is supported by an output of the drive means. supported on a coupling member operatively interconnecting the shaft to the winch drum; 15. The winch assembly of claim 13 or 14. 16. Any of claims 13 to 15, wherein the driving means is a hydraulic motor. Either winch assembly. 17. The pinch drum is supported by the support frame at each opposite end. Claim 13 supported by a rotating element bearing supported by The winch assembly according to any one of Item 16. 18. A winch assembly substantially as hereinbefore described with reference to the accompanying drawings. 19. A brake assembly substantially as hereinbefore described with reference to the accompanying drawings.