MXPA97000115A - Normally closed brake - Google Patents

Abstract

The present invention relates to a brake comprising: a fixed seat, a friction brake shoe, a braking part, a braking spring, a driving block, a braking block, wherein the driving block is connected to a motor part, the braking block is connected to the braking part, the drive block is connected to a braking block operating face, and a connection lever is fixed to the braking part, one end of the connecting lever is connected with a braking spring, the other end of the braking spring is connected to the braking part, and the braking part is connected only with a driven part in a form of fixing or decoupling

Description

BRAKE Canine of technology The present invention features a normally closed mechanical brake device that is applied to moving objects, Flush techniques Current brakes, mechanical, electromagnetic or electromagnetic-hydraulic, require complicated power devices and high energy consumption. The current normally closed brakes, for example, need an additional force device that provides external force to cancel normally closed braking. Another example is the electromagnetic belt brake, which, when it is normally closed, brakes the object with the help of a spring as a brake force. When the object needs to move or rotate, it is necessary to communicate electricity to the electromagnetic iron and produce electromagnetic force to overcome the force of the spring and cancel the normally closed braking. On April 25, 1989, the Invention Patent Communiqué of China gave the so-called "Brake Device with Conversion of the Inertia Force in Braking Force" whose application number is 87102097. This braking device It consists of an additional force device, a tracking mechanism, a train mechanism and an additional force increase mechanism. The main force for the realization of the braking comes from the conversion in force of brake of the force or inertia that produces the object in motion and subjected to braking. This brake device is characterized by immediate braking, rapid release and safe operation, however, for its normal operation it still requires a force, additional device that provides brake operation force. However, indo works, the additional force device consumes a certain amount of snergi *. In view of the above, the present invention, on the basis of a new development and a significant improvement of the available techniques of the aforesaid patent, presents a device of compact structure that can perform or cancel the braking in normal or in a static state without the need for additional force. The present invention has for another purpose to present a device which, taking advantage of the relative movement that lasts in the time from the start of the transmission to a little after the cessation of transmission, performs or cancels the braking. The present invention has for one more purpose to present a device which. using the concave-convex faces of conjugation. connection mechanism located between the motor part and the driven part) is able to perform or cancel the braking. Contents of the invention First of all it should be clarified that. In order to explain in a simple and effective manner the content of the present invention, the terms "motor power", "driven part", "movement in the first direction" and the terms "motor movement" are used in the current manual.

* ***. Relative displacement in the second direction • ', whose connotations are the following. '' Motor piece '' and '' piece driven7 ''. The motor part and the driven part are not structural components of the brake device of the present invention, but a mechanism that connects the apparatus in which the present brake device is installed with the latter. As regards the transmission relations, the motor part is located in the motor and the driven part, in the driven sector.

'•' Movement in the first direction '' ßß ref i s e to the joint movement in "" |? the motor part leads to the driven part, also to the joint movement of the motor part and the block of action and to the joint movement of the driven foot and the drive block. Movement in the first direction is briefly called joint movement. "Relative displacement in the second direction" refers to the relative displacement of connection or separation of the drive block or the brake part with respect to the friction face of the fixing seat, to the driven piece or to the action block, that is to say, the relative displacement in the execution or the cancellation of the braking. Therefore, the relative displacement in the second direction is also called relative displacement of or separation. The present invention presents a type of brake that includes a connection mechanism that allows the motor part to drive the part driven to a joint movement (movement in the first direction), a fixed seat with friction face, and a brake part connected to the driven part and that can • be joined and separated from the friction face of the fixed seat for perform or cancel the braking of the driven part that moves in the first erection. The present invention is characterized by the fact that the connection mechanism is located between the motor part and the driven part and includes a force conversion mechanism in which there is a block of action that can perform the joint movement (the movement in the first direction) with the motor part: as well as a drive block that can perform the joint movement (the movement in the first direction) with the driven part and, at the same time, produce the relative displacement of adhesion or separation (the relative displacement in the steering direction) of the brake part: The mentioned action block and the mentioned * drive block have a conjugation mechanism that allows them to make relative movement, when the motor P obtains or loses active force, it is : the mechanism allows the drive block to produce the relative displacement of adhesion or separation and relative displacement in the second direction) with respect to the driven part, thereby making or canceling the braking of the part "actuated"; Said connection mechanism further includes a limiting mechanism which is used to limit the distance of the relative movement of the action block and the drive block and to keep them in the joint movement < the movement in the first direction) after making or canceling the scrub or, in the said brake, the movement in the first direction can be rotated.

Furthermore, in said brake, the limiting mechanism may include a spring that presses the drive block towards the action block, in order to ensure that. after the relative movement of both blocks, between them 3e produces a sufficient force that allows them to be in common movement.

In addition, in said brake, the limiting mechanism also includes a disk-shaped disk, connected to the motor part, and several axle pins outside the center of that disc-shaped part. Also included is a disk-shaped part of the aforesaid driven part, corresponding to the position of the axle pins and having varicose orifices in the arc direction. These shaft pins can make relative movement and reach a given end of said holes. Furthermore, in said brake, the motor part: and the driven part can be installed one above and one below, the limiting mechanism includes a disk-shaped part connected to said motor part, and outside the center of that part of the motor. disc shape there are vain shaft pins. Also included is a disc-shaped part of the aforesaid driven piece, which corresponds to the position of the pins described therein, and in that piece of '' Disk weapon there are several long holes which - in the arc direction , in which said shaft pins can move and finally reach a given end of said holes. Furthermore, in said brake, the coniugational structure that produces relative movement between the action faces of the action block and the drive block is a convex wheel structure, while any of the action faces of the block action and block drive is a convex wheel face or are faces of action. When the relative rotation occurs, the drive block is allowed to travel in the second direction (relative displacement of adhesion or separation) with respect to the action block, making or canceling the braking. In addition, in said brake, a drive block is installed which, following the axial direction of the driven piece that blows, produces relative displacement of adhesion or separation. { relative displacement in the second direction), that is, the relative displacement made by the drive block in the second direction may follow the axial direction of the rotating driven part. Adema '?, in said brake, a drive block is installed which * following the radial direction of the driven piece that rotates, produces relative displacement of adhesion or separation (relative displacement in the second direction), that is, the relative displacement that the Drive block in the second direction can follow the radial direction of the driven part that "will go. Furthermore, in said brake, the fieno piece and the disc-shaped part of the driven piece can be an integrated structure, formed by a compensating mechanism and a sliding key .. The brake piece is a saucer with inner ring of teeth and the aforementioned disk-shaped part is a disk in which the compensation mechanism and the key can be installed. The compensation mechanism is located between the cymbal and the diskette. The sliding key allows joint movement (movement in the first direction) of the dish and the buffet. The compensation mechanism comprises a concave channel located at the edge of the float, a blye of teeth that is in this channel and that can be combined with the saucer, and also a spring between the block of teeth and the bottom of the channel concave Furthermore, in said brake, the two faces of the part of the driven part can be the action blocks of the conjugation mechanism that are combined separately with the two driving blocks. In other words, the two end faces of the action bikes that follow the axial line of the rotating driven part can all be concave faces -convexes of action and are used to conjugate at the same time with the two drive blocks. Furthermore, in said brake, the friction face of the fixed seat can be conical, flat cylindrical, while the brake spider of said brake part can be correspondingly conical »flat or cylindrical. And also, in the mentioned brake, the movement in the first direction (joint movement) can be in a straight line; and this brake has a drive block which, in a direction perpendicular to the driven piece moving in a straight line, produces relative displacement in the second direction. In other words, the relative displacement in the second direction (relative displacement adhesion or separation) that the drive block makes in the second direction may be perpendicular to the driven part moving in a straight line. The conception, the objectives and the advantages of the present invention become clearer with the help of the following additional figures giving r ~ explanation to its various application cases.

Fig. 1, which is a section traffic that follows the line A- seen in Fig. 2, represents the application case 1 of the present invention. It shows the structure of the sliding pins, the sliding holes and the connection lever; Fig. 2 is a section graph that follows i * line B-B seen in Fig. I x La Pig. 3 is a graph of the force conversion mechanism, seen in the axial direction! Fig. 4 is a section graph following the line G-G seen in Fig. 3: Fig. 5 is a graph having the concave-convex conjugation faces of the action block and the drive block deployed; The 'Fig. «S, that cs a section graph that follows the line C-C seen in the Fie. 7, represents the application case 2 of the present invention; The Flg. 7 is a section graph following line D-D seen in FIG.

Fig. 8 is a sectional graph of the compensation mechanism that follows the line E-E seen in Fig. 6; Fig. 9 is a section graph of the compensation mechanism that follows line F-F seen in Pig, 6? Fig. 10, which is a section graph, re-creates the application case 3 of the present invention; Fig. 11. That in a graphic view of pájajo, represents the application of the present invention to the speed reducer; "" "Fig. 12 is a section graph that follows the line MM seen in Fi. U! Fig. 13 is a section graph that follows line N-N seen in Fi, lys Fig. 14, which is a sectional graph in the axial direction, represents the application area 5 of the present invention, Fig. 15. That is a sectional graph in axial dilection, represents the application case 6 of the present invention: 16. which is a section graph, represents the application case 7 of the present invention Fig. 17 is a sectional drawing that follows-line KK seen in the Fie. 16; The Fig. 18 is a section chart that follows the H-H line seen in the FIE. 16; Fig. 19 represents the application case or the present invention.

BEST MODE OF APPLICATION OF THE PRESENT INVENTION The Fifis, i-5 show the application case I of the present invention. It is a normally closed brake, which condemns the fixed seat 1, the piece **. ' brake 2, the brake spring 3, the force conversion mechanism 4, the driven part 9 and the motor part 11. Its structure and its reciprocal connection are explained below: In the fixed seat 1 is the brake block (both are integrated), the brake friction face 8 of the frying piece 2 can be flat or conical, and when it is separated or joined with the friction face of the block of brake 6, braking is performed or canceled. The Pig. 2 shows the contact state of the friction face of the brake part with the deflection face of the brake block 6, i.e., it shows the braking state. In the brake part 2 are the cog hole 7 following the arc direction, and the shaft casing 10 which is connected to the passive driven part 9; the slide hole 7 has a certain length in the arc direction. Since the brake part 2 and the shaft seal 10 are integrated, when the brake part 2 and the brake block 6 have strong contact and are in the braking state, it is with the aid of the shaft casing 10. that the braking of the driven part 9 is performed. Also, when 1 & The casing of axis 10 is conjugated with the passive action piece 9, the piece of Fig. 2 can slide in the axial direction in a relative position with the driven clutch 5 ». U or the ends of the connection lever 12 fixed on the brake part 2 * the spring 3 is installed in the same case of that lever, and the force of the spring acts on the brake part 2. when the present brake is in a braking state, the brake part 2 is contacted in a compact manner with the brake block 6 by the action of the spring 3. (Forward the action of the brake block 16 and the action of the spring 20, thefts shown in FIG. Fig. 1). ^ The force conversion mechanism 4 consists of the action block 13 connected to the motor part 11 and to the drive block 14 fixed and connected to the brake part 2 (Figs 3. 4. 5). The contact faces of the action block 13 and the drive block 14 have convex-concave contact faces 15 (equivalent to the convex wheel face of the driven part of the convex wheel mechanism). When the motor part obtains active force and leads to rotate the action block 13, the convex face section of this block moves towards the convex face section of the drive block 14, communicates propulsive force to this block and moves in the axial direction (shown by the arrow in Fig. 5), so that the brake piece 2 overcomes the action of the spring 3 and moves outwards and, consequently, the brake friction face of the p: brake pedal 2 separates from the bio ^? brake 6. thus canceling the braking. The sliding pin 5 is in the sliding hole 7 of the foot of brake 2. One of its ends is connected to the totora piece 11, and the other end is the action block 13 of the mechanism dr. force conversion 4 (Fig. 1). The sliding pin 5 can be moved relative position by the sliding hole 7 and rotates the block of action 13, so it is possible to grind the drive block 1 to activate the brake part 2 and make it run. The present invention adopts the following precedes > to cancel the normally closed braking and to put in normal movement i * passive driven piece 9: O * "*". 3rd the motor pawl 11, activated by the electric motor or another motor part main, obtains active force, rotates and makes that sliding pin "5 moves through the sliding hole 7. Now, the other end of this pin ^ 0 moves to rotate to the action block 13 located in the force conversion mechanism, and this block produces propulsive force on the drive block 14, which forces the brake part 2 & move outwards, gradually canceling the braking. When the braking has not been completely canceled, the passive driven obstacle 9 remains in a static state. When the sliding pin /5 goes to a end of the sliding hole? . the braking is completely canceled. At this time, the sliding pin 3. which works as a torsion transmission shaft, moves the brake part 2 to rotate, in consequence of which the driven part 9, coupled inside the axle casing of the brake part 10 » ee puts in normal movement. In concrete terms, taking advantage of the time difference between the start of rotation of the motor part 11 and the temporary static state of the driven part 9. the displacement of the sliding pin 5 by the sliding hole 7 rotates the block «action 13, and then the block and drive 14 forces the brake part: to weigh out, thereby canceling the braking. Once the braking is completely canceled, and when the passive driven part is heard to operate normally, the action block 13 located in the force conversion mechanism is rotated by the action of the sliding pin 5, and because of the pr, limiting pel. of position of the slide hole 7, it is ensured that the convex face master of the action block 13 is contacted in a secure manner co: > The convex face section of the drive block 14, thus maintaining the condition in the canceled state.

The braking recovery normally closed? takes the following process: When it is necessary to apply brake, the current of the rinci motor part is cut off (for example, electric motor), the motor part 11 loses strength activates and decelerates by the reaction torque to its operation, the sliding pin 5 runs through the sliding hole * in the opposite direction to that in its start and moves the action block ü to turn also in the opposite direction, and now the section The convex face of the action block 13 passes towards the concave face section of the drive block 14, until the propulsive force produced by the action block 13 on the drive lip 14 is completely eliminated. As the brake spring 3 acts on the brake part 2 and presses it, this part contacts the brake block 6 and produces frictional resistance, forcing the brake part 2 to stop moving, and then the driven part paeivs 9 attached to the brake part is braked. 2 and located on the axle casing 10, thus performing braking. It should be noted that these descriptions explain only the situation in which, being an action face, a side face in axial sense of the action block 13 is conjugated with the csnvtxa wheel action face of the drive block 14. however, Figs, i-5 show in reality the structure of Conjugation between the action block 13 and the drive bkques 14 and 18 (Fig. 5. below the action block 13). This structure contains the friction piece 6 in addition to the brake part 2. In fact, in the present application case the brake part 16 may not be present. P < > In the description already made it is known that, in normal situations, the action of the single brake part 2 is sufficient and the brake part 16 can be replaced by a single plate, and to this plate, the other end of the lever engages 12. Then, in the case of application 2 of the present invention, the structure carried by the brake piece 16 will be described in detail (Fig. 4 shows another block, which is the drive block 18, the contact face 19 and the tj'7-thio spring 20. This is explained below). It should also be noted that, in the present application, the connection between the driven part and the motorcycle part is practically equivalent to an elastic coupling of shafts.

- ~ * N $ Figs, 6-9 show the application case 1 of the present invention. The parts already referred to in the case of application 1 and similar parts are marked with the same numbers as before. On the other side of the brake block or there is the brake part 16 corresponding to the brake part 2, and the brake friction face of the brake part 16 corresponding to the other frictional surface of the brake block 6 is together and separated from her. In the other end of the block of action 13 is the drive block 18 corresponding to the drive block 14 (Fig. 4, 5), and the convex-concave contact faces 19 of the action block 13 and of the drive block 18 are symmetrical to the contact faces 15. r-; The axle casing of the brake part 16 and the axle casing of the brake part 2 is the sliding key 17 which allows both parts to move or to stop moving at the same time. For the rest, these two brake parts can follow the sliding key 17 and move axially in a relative position. The connecting lever 12 has one end connected to the brake part 2 and another to the Brake part 16. On the first end spring 3 is installed, whose force acts on the end piece 2. In the second The spring 20 can be installed (Fig. 2.} symmetrically a) spring 3. The force of the spring 20 acts on the brake part 16. Furthermore, since the second end of the connecting lever 12 can be fixed in the brake part 16. spring 3 can also act on this part through the same connection lever (Fig. 7). There are friction sheets on the brake friction faces of the brake parts 2 and 6. In order that the force received be even, there must be at least two sliding pins 5 and two sliding holes 7 corresponding, and these pins and holes must be evenly distributed. In the present case of application, there are six slots 7 in the brake piece 2 (Fig. 6). and corresponding sliding pins 5. In order for the received force to be even, at least two of the connecting levers 12 must be connected to the brake parts, and both levers must be symmetrically installed. In the present application case there are two brake springs 3, and the brake springs 20 may be two, but they may also not be. In the case of application 2 of the present invention, the cancellation of braking follows the following process: The action block i follows the sliding pin S and rotates following the rotation made by the motor part when it obtains active force, communicates propulsive force towards fter the drive blocks 14 and 18, one connected to one end and another attached to another end, now the brake parts 2 and 16 pass out at the same time and leave the brake block 6, braking is normally closed cerraco. and the passive driven part returns to normal operation. When the motor part loses active force, the action block 13 follows the closed pin 5 and rotates in the opposite direction, the convex face section of that block moves towards the concave face section of the drive block, the force p-Opulsora is eliminated, the brake spring 3 acts on the brake part 2. and the brake spring 20 on the brake part 16, or the brake spring 3 may act through of the connection lever 12 on the brake parts 2 and 16 at the same time and forces them to move in and to contact closely with the block / '"sine 6. and then normally closed braking is recovered.

In the case of application 2, the pieces of fry 2 and 16 can also be composed of the inner denture plate 21 and the fuse 22, and between these two are the brake compensator mechanism 23 and the sliding key 24 which makes simultaneously to the saucer and the damper to work or - to stop working. This key is also used to ensure the equilibrium of the plate that is installed at the edge of the disquew. In the present case of application, the brake compensation mechanism of the brake part 2 and that of the brake part 16 are installed symmetrically. The t-block 6 is made of two sheets, which can be joined together by means of the support shaft 30. In addition, in the center of the two-leaf brake block 6 and on the connecting lever 12 is the inner plate intermediate 29, which is used to increase the frictional force when phtene is applied. By structure, these brake compensation mechanisms are improved tooth rings. That is to say that in the inner ring of the plate 21 is the ring of teeth 26, and in the circular edge of the plate 22 is the block of teeth 25 (Fig. 8, 9), which has outer teeth in conjugation with the ring of teeth 26. The outer side of each tooth is an oblique face, and the inner side is a .'a perpendicular to the transmission line. The ring of teeth 26 and the block of teeth 25 are conjugated on a broken face. On the bottom of the sliding key 24 is the spring 28. With the help of a thread ae, this key can be moved, and thus the plate 21 and the disk 2 rotate along the threaded grooves, serving as a gap for the artificial reau friction. The tooth block 25 is installed in the concave channel 27 formed in the circular edge of the floppy 22. At the bottom of this channel is the jfielle 27a (Fig. 8). which acts on the tooth block 25. The tooth blocks 5 are installed in pairs. In the presei.te case are "éuatro pairs" (eight blocks). Some blocks of teeth that are evenly distributed. in pairs (four in the present case, and not drawn in black in Fig. 6), they are in full contact (Fig. 81. The others that are also evenly distributed in pairs (four, drawn in black in Fig. 6), are of partial contact (Fig. 9). The total contact are in working status. It means that, when the damper of the brake stiffness is activated by the force conversion mechanism and passes outwards, they move the saucer to move in the same direction for the purpose of canceling the braking. When the propulsive force of the force conversion mechanism is canceled, the brake force acts on the clutch and causes the cymbal to contact the brake block 6 closely, thereby performing braking, The tooth block 25 whose teeth are of partial contact remains in a state of compensation. When the friction sheet of the saucer is damaged to some extent by the use. the clutch 22, obeying the action of the drive block, passes outwards and moves in relative position with the saucer 21. Overcoming the action of the spring 27a. the block of teeth 25 descends in the concave channel, while its teeth slide and enter the lower ring of teeth of the plate, that is, it is already in full contact and is in working condition. On the other hand, the teeth that are previously tied in total contact remain in a state of compensation, of partial contact. it should be emphasized that, according to its principles, the compensation mechanism 23 referred to in the case of application 2 can also be used in other brakes of the present invention whose brake parts are disc-type. This will be explained in the cases of application 3. 4, 5, i, etc. Fig. 10 shows the application case 3 of; present invention. The above-mentioned parts in the above cases of application and the "like" parts are marked with the same numbers as before, Fig. 10 is a graph showing the cross section in axial direction.The present case of application is a va i : of the application cases described above The fixed seat consists of three connection axes 31 and two side plates 32 joined with the two ends of said axes. The brake block 6 ae consists of two disks of separable body 33, fi xed on the connecting shaft 31. The brake part 2 and the brake electrode 16 correspond separately to the two detachable body discs 33 of the brake block. brake 6 Between the brake parts 2 and 16 and the two separable body discs 33, the brake block 34 and the brake part 35 of the inner tracking plate can be installed. The brake block 34,? R.ido with the connection axis Jív-Süede move following this axis. In the side block of the brake block 34, the brake part 35 of the inner follower plate having the same axial line and the friction rings of the brake part, the brake block and the brake part are installed. of the internal tracking dish are separated and joined together in corresponding forge. This structure, called multiple leaves and double disc, has the motor part 11 as a transition wheel. In the present case of application, this wheel is the transmission gear 36. installed between the two detachable body discs 33 and wrapping the shaft 37. This axis is the passive driven part 9, f- and also serves as connection to the connection lever 12 of the brake part. The sliding pin 3 passes through the gearwheel transmission 36. the brake blocks 2 and 16 and the brake part 35 of the inner follower plate.

The two ends of this pin are separately in. the sliding hole 7 of the brake part 2 and in the sliding hole 7 of the brake part 16. It is also possible to couple the running holes 7 to the sliding pin 5 and to install the sliding holes 7a in the toothed wheel * of transmission 36.

The spring 3 and the spring 20 are installed on the two ends of the axle 37. The force conversion r / lanis has two blocks of action 13 with a separable body, connected with the two end faces of the transmission sprocket 36. respectively. When the driving block 14 and the driving block 18 produce a starting thrust force, one of the brake part 2 and another of the brake part 16, these two parts separately overcome the force of action of the springs brake 3a and 20a and move outward; so that the brake block 34 and the brake piece 35; < The internal tracking dish does not receive pressure, it loosens and it is free from braking. When the propulsive force of the drive blocks 14 and 18 disappears, the brake parts 2 and 16, by the action of the two brake springs, produce pressure on the brake part 35 of the inner plate < * e tracking and on the brake block 34, forcing them to move inward until they have compact contact with each other. for which braking is performed. In the case of application 3, when the brake is canceled, if the force of action of the brake springs 3a and 20a is sufficiently large, it is capable of forcing the brake parts 2 and 16 to move in a limited area. But it is also possible to limit the position of these parts with the installation of the elastic restraining washer 39, which the reader reads to a limited extent, and in this way it is ensured that the concave-convex face of the block - Section 13 does not extend beyond the convex-concave face of the drive bio 14. 14. The structure may not have sliding pins or slide holes because the force transmission can be directly carried out by the action block. 13 and of the drive block 14. As explained in the case of application 1, it is also allowed to install only the brake part 2 and not the brake part 16. FIGS. 11-13 represent the application case 4 of the present invention.

The parts already mentioned in the previous application cases and the similar pieces are marked with the same numbers that before. .- ,. The present case is a real example of the case of application 3 executed in »1 speed reducer, see the structure of < , corresponding connection in Figs. 11-13. In this case, the two side plates 32 of the fixed seat are connected separately with the two inner walls of the gearbox of the speed reducer; the transmission gearwheel 36, which is the motor part, is engaged with the preceding stage gearwheel 38; and the passive driven foot2.a is the performance transmission shaft 37 of the speed reducer. The connecting shaft 31, the detachable body disc 33 and the brake block 34 that appear in Figs. tl-13, are the same as mentioned in the case of application 3. Fig. 14 represents the application case 5 of the present invention. Laß '? í. * 1? S already referenced in previous application cases and parts similar ones are marked with the same numbers as before. In the case of application 5, the friction faces of the brake part 2 and the fixed seat i are conical. The fixed seat 1 is fixed directly on the outer hull 40 of the driven part, the brake part 2 with conical frizzing face includes the conical plate 21 and the clutch 22, and all use the same compensation mechanism presented in the case of application 2, that is, a structure * _ »/ Orada type ring of teeth (not shown in the figure). One end of the connecting lever 12 is connected to the inner fixed plate 41. Between the 'force conversion mechanism 4 and this plate is the bearing 42, dedicated to reducing the frictional force of the force conversion mechanism. Other components include the motor part 11, the driven part 9, the sliding pin 5 and the spring 3. FIG. 15 represents the application case 6 of the present invention. The parts already mentioned in the previous application cases and the similar pieces are marked with the numbers numbers that before. , * -. In the present case of application it is used. ' by gravitational force of tta, motor part 11 and of the driven part 9 (vertically inwards with the motor part in the up position) as a force of action that determines the limited displacement of the force conversion mechanism 4 and as a force of action of braking, without the need for a lever of any connection. The fixed seat serves to join the outer hull of the piezr, upper motor with the outer hull of the lower driven piece. Between the force conversion mechanism 4 and the propulsive force plate 45 is < d bearing 42 and. the same time, between the motor part and the driven part i. there is the bearing 46. 'from?'. To reduce the force of friction. The brake part 2 further comprises the plate 21 and the floppy 22. Between the latter two, the aforementioned compensating mechanism can be adopted or in its conjugation use simply threaded grooves, together with the installation of the key 47 and the spring 48. In the position of the key channel of the saucer 21 is the screw 49. When the friction part is damaged after a while, the screw 49 is used to push the key 47 to the position where it is rotatable, and then it is possible to adjust the friction gap. Laß Figs. 16-13 represent the application case 7 of the present invention.

The »parts already mentioned in the previous application cases and the parts -" st, are marked with the same numbers as before. "The present case of application differs from the previous cases in what refers to the structure, in this case If the braking is canceled when the force conversion mechanism transforms the active force into radial force and you see the braking action force that the spring makes, the fixed seat 1 can be fixed in the outer casing of the driven foot and also it can be in another position The inner wall of the fixed seat 1 performs the action of the brake block, that CORK 6a is indicated in the figures. The cylindrical face of the brake block 6a is the brake friction face, called the cylindrical face of. reindeer 50. The brake part is the horseshoe block 2a, hinged by the support pin 51 to the driven part 9. The action of the action block 13a of the conversion mechanism of the radial force 4a is performed by the end anterior of the cordent passer 5a. The action face of the drive block 14a is here the conjugating face 53 and is directly fixed and installed in the tool block 2a. The drive block 14a and the horseshoe block 2a can < In order to redefine the driving friction of the sliding pin 5a in its anterior end is the roll 52. to avoid that, r - 'se * ^ > duce radial component force between the piezo: motor part 11 and the driven part 9 < the conversion mechanism of the radial force 4a must be evenly distributed around the center of the circle in relation to the kinetic body. It uses two symmetrically distributed pieces: When the motor part 11 obtains active force and drives the sliding pin 5a to move, the roll 52 which is on one end of this pin presses the conjugation face 53 (Fig. 16). radial force component haoia down, overcomes the action force of the spring 3a and forces the brake horseshoe block 2a to pass in radially to cause the cylindrical brake face 50 to cancel the braking, so that the part i »» Í & 11 and the driven piece 9 can work normally. When the motor part 11 loses active force, the sliding pin 5a moves in the opposite direction to the conjugating face 53. and by the action force of the spring 3a the braking state is recovered. Fig. 19 represents the application case 8 of the present invention. In it, the motor part leads the driven piece to move in a straight line (radial movement in the left and right directions, shown in the same figure). As shown in Fig. 19, the brake part l the drive block 14 are integrated, the two brake parts 2 are in the mouths of the channels of the two side plates of the driven part 9, respectively, the action block 13 is in the concave channel located between :. In the brake part 2 and the drive block 14, the oblique face of the drive block 14 is conjugated with the oblique face of the action block 13, the two ends of the spring 3 are connected to the inner ends of the drive block 14. , respectively, and the friction sheet on the outer side of the brake piece 2 s * joins and separates from the friction face of fr * -no of the fixed seat l. When the motor part obtains active force and moves in a straight line, by the action of attaching the oblique face of the action block 13, the drive block 14 presses on the spring 3, moving inward, SO. The brake part 2 is detached from the brake friction face and frees the driven part 9 from braking, so that this part moves together with the motor part 11. When the motor part loses active force, the action of the spring 3 the body integrated by the action block 13 and the brake part 2 moves from the inside out, and the brake part 2 contacts the brake friction face, thereby braking the driven part 9. As described in the cases of application, the brake of the present has the force conversion mechanism installed in the corresponding structures. The active force of the motor part is used to overcome the brake action force and cancel the braking, so that the passive driven part and the motor part can maintain normal operation, compared to the available techniques, * 1 brake present invention possesses substantial and relevant characteristics, or precise devices of additional strength, and its structure is simple. The operation process -normal, requires little energy, brakes safely has wide applications.

In particular. When applied to non-explosion-proof machinery, it does not require anti-explosive measures and works in complete safety and reliability, since it does not require an additional strength device (for example, electromagnetic iron). Therefore, the brake of the present invention has vast and promising prospects for its application to mining machinery, steelmaking, lifting of loads, construction, as well as to machineries in general,

Claims (13)

REQUIREMENTS OF LAW

1. It refers to a type of brake, which includes a connection mechanism that allows the motor part to drive the driven part to perform the joint movement, a fixed seat with friction face and a brake piece capable of joining and separating of the friction face of the fixed seat and able to perform or cancel the braking of the driven part. Its characteristics are: connection is installed between the motor part and a force conversion mechanism, in which there is an action block that can moving together with the motor part, and also a drive block that can move together with the driven part and that at the same time allows the brake part to perform the relative displacement of adhesion or separation; Said action block and said drive block have a structure of conjugation that can produce relative movement in adhesion or separation direction when the motor piez obtains or loses active force; and ^ The said connection mechanism further comprises a limiter mechanism which is used to limit the relative movement distance of the action block and the drive block.

2. The brake described in Requirement 1 of the Law is characterized by the fact that said limiting mechanism also includes a spring that presses the drive block towards the action block.

3, The brake described in Requirement 2 of the Law is characterized by the fact that said limiting mechanism comprises a disc-shaped part connected to said motor part, and whose part outside the center has four pins of shaft, and a disc-shaped part connected to the driven part, in whose corresponding position .-, the shaft pins have several long holes that go in the direction of &r-, or-

4. The brake described in the Requirement 3 of the Law is characterized by the fact that the conjugation structure that produces relative motion between the action faces of the action block and the drive block is a convex wheel structure.

5. The brake described in Requirement 4 of the Law is characterized by the fact of having a drive block which, following the axial direction of the rotating driven part, produces the relative displacement of adhesion or aration.

6, The brake described in Requirement 3 of the Law is characterized by the fact of having a drive block that, following the radial direction of the rotating driven piece, produces the relative displacement of adhesion or separation.

7. The brake described in Requirement 2 of the Law is characterized by the fact of having a drive block which, following the perpendicular direction of the driven piece moving in a straight line, produces the relative displacement of adhesion or separation.

S. The brake described in Requirement 5 of the Deck is characterized by the fact that the two faces of the block of action are structures of conjugation that are conjugated with the two blocks d * - drive, respectively.

9. The brake described in Requirement 5 of the invention is characterized by the fact that said drive block corresponds to a disc-shaped brake part whose brake face is conical or -lana.

10. The brake described in Requirement 5 of the Law is characterized by the fact that there will be an inner plate between the friction faces of the disk-shaped brake parts. - - - I. The brake described in Requirement 6 of De. Echo is characterized by the fact that one end face of said action block corresponds to the drive block and another to the bearing, 12. The brake described in Requirement 6 of It is characterized by the fact that said drive blocks are evenly distributed, and that the anterior ends of the sliding axle pins serve as the block of action, and that there are rolls. 13. The brake described in any of the Requirements 5. 8, 9, 10 and 11 of the Law is characterized by the fact that said braking part and said disc-shaped part of the driven part are a "tier" structure comprising a compensating mechanism and a sliding key, that the aforesaid brake piece is a tile with an inner ring of teeth and the aforesaid disk piece is a disk in which a compensating mechanism and a sliding shoe are installed, and that said compensation mechanism includes A concave channel located at the edge of the floppy, a block of teeth located in said concave channel and that can be conjugated with said plate, and a spring located between the mentioned tooth block and the bottom of the concave channel.