KR200383076Y1 - Oil-pressure generating apparatus for the safety braking apparatus of the elevator system - Google Patents

Abstract

The hydraulic generator for a safety brake device of an elevator provided by the present invention is a motor (2) for generating a rotational force by electrical energy to rotate the main shaft (2a) protruding outward at a predetermined speed of the motor (2) A flow path block 3 mounted above and having flow paths through which oil can pass and a central hole 300 into which the main shaft 2a of the motor 2 is inserted; An oil reservoir (6) coupled to the flow path block (3) and filled with oil therein and having a sight glass (6a) and a vent hole (6b), an oil pump (4) mounted above the flow block (3), and the And a power circuit unit 8 for supplying power to the motor 2, wherein the oil pump 4 includes a filter 42 for sucking oil in the oil reservoir 6 and an internal flow path through which the oil passes. The upper cover 40 having a 40a, and oil discharged through the flow path 40a of the upper cover 40 It is provided with a body 45 for pumping the oil discharged by the rotation of the gears (456a, 456b) installed in the oil inlet 450 and the pump space 460 therein. The hydraulic generator 1 according to the present invention is applied to an elevator safety brake device designed to automatically release a safety brake device when the elevator power is turned off to hold the hoist rope and to release the safety brake device when the power is turned on again. Therefore, the hydraulic circuit for supplying the hydraulic pressure to the safety brake device is unified with a block of metal to improve safety and ease of use, and switching the electrical mechanical state of the power supply unit and the hydraulic circuit according to the automatic mode and the manual mode (320, 320 ') can be achieved by simply operating the adjustment screw 327 has the advantage of improved ease of use.

Description

Oil-pressure generating apparatus for the safety braking apparatus of the elevator

The present invention relates to a hydraulic generating device for the safety brake device of the elevator, in particular, when the power supply of the elevator goes out, or when the opening gate (나) or overspeed ascension automatically operates the safety brake device to hold the hoist rope and the power again In the safety brake system for an elevator designed to release the safety braking device when entering or the abnormal state is released, the hydraulic circuit for supplying the hydraulic pressure to the safety braking device is unified with a metal block to improve safety and ease of use, and the automatic mode and The present invention relates to a hydraulic generator for a safety brake device for an elevator in which the switching of the electrical mechanical state of the power supply unit and the hydraulic circuit according to the manual mode can be achieved by simply operating the adjusting screw of the valve.

1 is a structural diagram of a general elevator safety brake system. An elevator car 94 that climbs up and down through an elevator aisle in a building is suspended from one end of a hoist rope 92 supported by a drive pulley 93, and typically the other end of the hoist rope 92 is an elevator car 94. Counterweight 95 having a weight that is heavier than the weight of) is connected. The rollers 97 protruding from the elevator car 94 are coupled to the vertical rail 96 fixed in the elevator passageway, thereby guiding the rollers 97 while the elevator car 94 moves up and down. By the action, the elevator car 94 is not shaken in the horizontal direction.

The safety brakes 9 are installed on the fixed beams 98 and 99 installed below the drive pulley 93, and the safety brakes 9 are provided when the power supplied to the elevator equipment is exhausted or in the elevator car. It serves to hold the hoist rope 92 firmly so that the elevator car 94 does not move in the event of an emergency, such as when getting in and out of the door 94 open. Then, when the emergency is resolved or when the power is turned on again, the safety brake device 9 is released to release the coupling to the hoist rope 92 and the elevator car 94 can be lifted again.

The safety braking device 9 shown in FIG. 1 usually has brake shoes facing each other (see FIGS. 2 to 5), when the brake shoes are lifted when the power is turned off or the door is opened. It operates by the elastic force of the to hold the hoist rope 92. After the power is turned on again and the fault condition is solved, the hydraulic cylinder is operated by the hydraulic energy supplied from the separate hydraulic generator to compress the spring and the brake shoes are hoisted in the original state (separate from each other). Return the rope to pass).

The conventional hydraulic generator which supplies hydraulic energy to the safety brake device of an elevator sends the high pressure oil to the cylinder mainly by the rotational force of the electric motor, so that the cylinder can overcome the elastic force of the spring and separate the brake shoes. In this case, it is natural that the motor rotates to generate oil pressure when the power is turned on again. However, it may be necessary to operate the elevator forcibly even when the power is not turned on. Therefore, in this case, a hand pump is installed in the hydraulic generator so that a person can manually generate hydraulic pressure and push oil into the cylinder. It is installed.

By the way, in the conventional hydraulic pressure generating device for the safety brake device of the elevator, the hydraulic circuit for supplying the hydraulic pressure by the rotation of the motor and the hydraulic circuit for supplying the hydraulic pressure generated by the hand pump is formed separately in the form of pipes, the piping of the hydraulic circuit This complexity was inevitable, and the post-management was difficult because of the great need for maintenance in preparation for the rupture of pipes and pipe connections.

In addition, the conventional hydraulic pressure generating device for the safety brake device of the elevator, when a person wants to manually generate a hydraulic pressure by using a hand pump measures to shut off the power supplied to the motor and closing the valve of the hydraulic circuit connected to the motor. The operation was cumbersome because it had to perform a total of two manipulations of the action.

The present invention, in order to overcome the first problem, the passage of the hydraulic pressure is transmitted by the operation of the hydraulic pump or the hand pump by the rotation of the motor, instead of using a pipe as in the conventional construction, instead of a single unit of metal To provide a hydraulic generator for a safety brake device for an elevator that improves safety and convenience of maintenance by forming a plurality of internal pipelines in a block to allow oil to flow into the internal pipelines. The purpose.

In addition, the present invention, in order to overcome the second problem, in switching between the automatic mode for generating the hydraulic pressure by the drive of the motor and the manual mode for generating the hydraulic pressure by operating the hand pump manually, Of the automatic / manual mode switching valve by switching between the automatic mode and the manual mode by the coupling state of the automatic / manual mode switching valve inserted into the block and the micro switch in contact with the adjustment screw of the end of the valve. An object of the present invention is to provide a hydraulic generating device for a safety brake device for an elevator that can simply change the mechanical state and the electric state between the automatic mode and the manual mode at once by simply moving the adjusting screw forward or backward.

Hydraulic generating device for a safety brake device of an elevator provided by the present invention to achieve the above objects, the motor (2) for generating a rotational force by the electric energy to rotate the main shaft (2a) protruding outward at a predetermined speed; Mounted above the motor (2), there is formed a flow path through which oil can pass, and the center hole (300) in which the main shaft (2a) of the motor (2) is inserted is formed in the center A flow path block 3; An oil reservoir 6 coupled to the flow path block 3 and filled with oil, and having a sight glass 6a and an air-breather 6b formed therein; An upper cover 40 mounted above the flow block 3 and having a filter 42 for sucking oil in the oil reservoir 6 and an inner flow passage 40a through which the oil passes, and the upper cover Body for compressing and pumping oil by rotation of oil inlet 450 for receiving oil discharged through flow path 40a of 40 and gears 456a and 456b installed in pump space 460 therein. An oil pump 4 with 45; And a power circuit unit 8 for supplying power to the motor 2.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and effect of the hydraulic generating device for a safety brake device of an elevator according to the present invention.

Figure 2 is a perspective view showing the overall configuration of the hydraulic generating device for the safety brake device of the elevator according to the present invention, Figures 3 to 5 is a perspective view showing the structure and operation of the safety brake device of the elevator to which the hydraulic generating device is applied And cross section.

Referring to FIG. 2, a safety brake device 9 (hereinafter referred to as a brake device) capable of holding the hoist rope 92 is installed near the upper part of the elevator facility, that is, near the driving roller 3 (see FIG. 1). The brake device 9 has a pair of wall members 913, 914 installed in the pair of metal angle members 911, 912. On the other hand, a part of the surface of the wall members 913,914 is formed with a camming surface (920,921) so that the cam driven shaft 917 can slide up and down along the surface. When the cam driven shaft 917 is positioned below the rolling surfaces 920 and 921, the movable metal brake shoe 922 connected to the cam driven shaft 917 by a pair of metal links 918 and 919 is formed. While the hoist rope 92 can freely pass between the metal brake shoes 922 and 924 away from the fixed metal brake shoes 924 on the opposite side, the cam driven shaft 917 is located above the rolling surfaces 920 and 921. When the movable metal brake shoe 922 moves closer to the fixed metal brake shoe 924, the hoist rope 92 is firmly gripped.

While the elevator is in normal operation, the springs 915, 916 are compressed as shown in Figs. 2 and 3, wherein the latching member 941 attached to the upper surface of the outer portion 929 of the cam driven shaft 917 is a solenoid Engaged by latch 942 pushed downward by 943 to maintain the compressed state of the springs 915, 916.

Then, when the power supplied to the elevator is cut off, the force pushing downward of the solenoid 943 is removed, and the latch 942 is opened upward, whereby the latch coupling member 941 is released from the locked state of the springs 915 and 916. The cam driven shaft 917 moves upward along the rolling surfaces 920 and 921 due to the elastic force.

FIG. 3 illustrates a step in which the cam follower shaft 917 starts to move upward by releasing the engagement between the latch 942 and the latch coupling member 941, and FIG. 4 shows the cam follower shaft 917 upward. It shows a completely moved state.

2, the high pressure oil supplied from the hydraulic pressure supply device 1 is introduced into the upper end of the cylinder 935 installed in the center of the cam follower shaft 917, whereby the piston head in the cylinder 935 As the 938a moves downward, the cam follower shaft 917 fixed to the other end of the piston rod 938 moves downward along the rolling surfaces 920 and 921 while overcoming the elastic force of the springs 915 and 916. When the cam follower shaft 917 descends to the bottom portion along the rolling surfaces 920 and 921, the latch coupling member of the cam follower shaft 917 is driven by a latch 942 that is forced downward by the solenoid 943. 941 is engaged to release the brake and allow the hoist rope 92 to pass freely.

2-5, reference numerals 25 and 26 are linings, 27 are springs, 47 are arcuate slots to which devices such as cylinders 935 and springs 915 and 916 are fixed.

On the other hand, referring to Figure 2, the hydraulic pressure supply device 1 for supplying hydraulic pressure to the hydraulic cylinder 935 of the safety brake device 9 of the elevator, the motor (2) for generating a rotational force by the electric energy, A flow path block (3) mounted above the motor (2), coupled to the flow path block (3) and filled with oil therein, sight glass (6a) and air-breather (6b) Is installed above the oil reservoir (6) and the flow path block (3) and sucks and pressurizes the oil in the oil reservoir (6) to discharge to the hydraulic pipe (8c) through the flow path block (3). An oil pump 4 (see FIG. 6), and a power circuit section 8 for supplying power to the motor 2 are provided.

Figure 6 is a perspective view of the entire separation of the hydraulic generating device (1) for the safety brake device of the elevator according to the present invention.

Referring to FIG. 6, the oil pump 4 installed in the oil reservoir 6 is fixed to the upper surface 30 of the flow path block 3 with a bolt 41 (see FIG. 7C), and the flow path block ( Inside the 3), flow paths through which oil pressurized and discharged from the oil pump 4 can pass are formed. In addition, the main shaft 2a of the motor 2 is inserted into the central hole 300 formed in the center of the flow path block 3 so as to be engaged with the drive shaft 457a of the oil pump 4 to rotate the main shaft 2a. The pumping action in the oil pump is thereby performed (see FIGS. 7C and 8).

The oil reservoir (6) is coupled to the motor (2) together with the flow path block (3) by bolts (31a), plugs (plugs) in the openings formed on the side of the flow path block (3) The automatic / manual mode switching valve 320 is inserted by the valve set 32 into one of the openings (310 of FIG. 8). On the other hand, the micro switch 81 is coupled to the end of the automatic / manual mode switching valve 320 so that the micro switch 81 is closed or opened according to the state of the automatic / manual mode switching valve 320, and accordingly, The circuit section 8 can be switched on or off.

7A to 7E are views illustrating the structure and operating mechanism of the oil pump 4 which is one component of the hydraulic generator for the safety brake device of an elevator according to the present invention.

7A to 7D, the oil pump 4 includes an upper cover 40 and a body 45, and the upper cover 40 includes a filter 42 for sucking oil in the oil reservoir 6 and the oil. An inner flow passage 40a and an oil discharge port 40b that pass therethrough are provided. At this time, the coupling portion 43 of the upper cover 40 functions as a connection portion with the filter 42, the bolts 41 are inserted through the bolt holes 41a formed in the upper cover 40 and the body 45 ) Are coupled to the bolt fastening holes 301a formed on the upper surface 30 of the flow path block 3 (see FIG. 9A).

The body 45 of the oil pump 4 is composed of an upper body 45a, an intermediate body 45b and a lower body 45c, and bolts (451a) of the bolt fastening holes 451a of the upper body 45a. 41 is inserted, and bolts 44 (see FIG. 7D) fitted from the bottom of the lower body 45c are coupled to the bolt fastening holes 451b.

7C and 7E, oil introduced into the upper cover 40 through the filter 42 flows along the flow path 40a in the upper cover 40 to form an oil outlet formed at the bottom of the upper cover 40. 40b), and since the oil outlet 40b is formed at the same position as the oil inlet 450 of the upper body 45a, the oil continues through the oil inlet 455a of the intermediate body 45b. Enter the pump space 460 inside the intermediate body (45b). In the pump space 460, two gear devices mounted on the base 458 of the lower body 45c, that is, the drive gear 456a and the driven gear 456b, and the drive shaft 457a and the driven shaft 457b. This insertion is rotated in the direction of the arrow in the pump space 460, the oil entering into the pump space 460 through the oil inlet 455a is driven toward the oil discharge path (455b). The oil driven toward the oil discharge passage 455b by the rotation of the gear devices 456a and 456b is transferred to the oil inlet 302 of the flow path block 3 through the oil discharge port 466 formed at one side of the lower body 45c. Inflow (see FIGS. 7E and 9A).

7C and 7D, among the bolt fastening holes formed at the edges of the intermediate body 45b and the lower body 45c, 453a and 459a are bolt fastening holes to which bolts 41 inserted from the upper cover 40 are coupled. , 453b and 459b are bolt fastening holes to which bolts 44 inserted from the lower body 45c are coupled.

As shown in FIG. 7, in addition to the bolt holes 41a, clogged grooves 41b to which the bolts 44 are coupled are formed at the bottom of the upper cover 40, and the oil inlet is formed at the bottom of the upper body 45a. An oil groove 450a is formed around the 450, and double sealing seals 450b and 450c are formed to prevent oil at high pressure from leaking out of the oil pump 4. And, as shown in Figure 7e, the oil groove 466a is formed to a predetermined depth around the oil outlet 466 of the lower body 45c, the sealing seal (465) is also formed around the oil To prevent leakage.

8 shows a motor 2 and a flow path block 3 constituting a hydraulic generator for a safety brake device of an elevator according to the present invention. A hand pump 5 is mounted on the side of the flow path block 3 so that a human hand operates the handle 5a of the hand pump 5 up and down by hand even when there is no rotation of the motor 2. The oil in the tank may be sucked up to the hand pump 5 through the check valve 341 of the flow path block 3 and then discharged to the outside through the oil outlet 3a and the oil discharge pipe 3b.

In Fig. 8, the handle 5a of the hand pump 5 is rotatably coupled to the piston leg 5b and the support leg 5c by hinges 5d and 5e.

9A is a plan view of a flow path block 3 which is one component of the hydraulic generator 1 for the safety brake device of an elevator according to the present invention. In FIG. 9A, a portion P, which is indicated by a dotted line at the center of the upper surface 30 of the flow path block 3, shows an area in which the oil pump 4 is mounted. Reference numeral 301a in the dotted line display area P denotes bolt fasteners to which the bolts 41 are coupled, 302 denotes an oil inlet, and 331 denotes a high pressure oil in the flow path block 3. It is an overflow outlet for returning the pressurized oil back into the oil reservoir 6 when it can no longer be supplied to the cylinder 935 (i.e., when the space of the cylinder 935 is filled with oil). In addition, the oil groove 331a around the overflow outlet 331 has an upper surface 30 of the flow path block 3 and an upper surface 30 of the flow path block 3 considering the bottom surface of the oil pump 4 is in close contact. In order to provide a clearance gap through which oil can flow), a groove having a predetermined depth is formed.

Openings on the side surfaces of the flow path block 3 are holes formed by drilling to form a flow path in the flow path block 3, and plugs 330, 340, 350, 360, and 370 as shown in FIGS. 9A and 10 are inserted into the holes. do.

FIG. 9B is a perspective view of an automatic / manual mode switching valve 320 coupled to the opening 310 of the side face of the flow path block 3. 9B and 11A, the automatic / manual mode switching valve 320 may include through holes 322 formed in a predetermined size around the oil pipe 321a and the oil pipe 321a at the forefront. The oil pipe 321a is coupled into the fastening nut 324 via the sleeve 323, and oil leakage is blocked by the sealing member 329. Then, a tubular valve element 328b is attached to an end of the screw shaft 328 in the extension pipe 325 inserted into the fastening nut 324 to open the oil passage 321 and the holes 322 in the oil pipe 321a. The tubular valve element 328b can be opened or closed in the oil pipe 321a by rotating the adjusting screw 327 formed at the other end of the screw shaft 328 supported by the head 326. have.

FIG. 10 is a plan view showing in a dotted line the arrangement of the flow paths 335, 345, 355 and 375 in the flow path block 3 of the hydraulic generator 1 according to the present invention.

As shown in Fig. 10, approximately five major flow paths are formed in the flow path block 3. First, an oil inflow flow path 355 extending from the oil inlet 302 of the flow path block 3 is formed. The oil discharge flow passage 375 formed to be orthogonal to the oil discharge flow passage 375 meets the overflow flow passage 335 and the hand pump flow passage 345. In addition, a first check valve 351 is formed in the oil inflow passage 355 to allow only oil to flow into the flow passage block 3, and an oil storage cylinder 6 is formed in the hand pump flow passage 345. A second check valve 341 allowing only oil to flow into the hand pump flow passage 345 and a third check valve allowing only oil discharged from the hand pump 5 to flow toward the oil outlet 3a. 342 is formed.

Plugs 330, 340, 350, 360 and 370 are inserted into and coupled to the openings formed on the side of the flow path block 3, among which an automatic / manual mode switching valve is coupled to the overflow flow path 335 via the connection plug 330. 320 exerts the function of opening and closing the oil discharge passage 375 and the overflow passage 335 at the same time by the user advances the adjustment screw 327 back and forth.

11A and 11B are internal structural diagrams of the automatic / manual mode switching valve 320 coupled to the flow path block 3 in the hydraulic generator for the safety brake device of an elevator according to the present invention, and FIG. 11A shows the automatic / manual mode switching. The tubular valve element 328b in the valve 320 has retracted to block the through holes 322. FIG. 11B shows the tubular valve element 328b in the automatic / manual mode switching valve 320 being advanced. The openings 322 are shown in an open state.

Referring to FIG. 11A, the adjusting screw 327 is retracted in a direction away from the flow path block 3, and the adjusting screw 327 is connected to the micro switch 81 of the power supply circuit section 8 as described later. In contact, the power supply circuit section 8 is kept in an off state (see Fig. 13A).

On the other hand, referring to Figure 11b, the adjustment screw 327 is advanced closer to the flow path block 3, the adjustment screw 327 is in contact with the micro switch 81 of the power circuit section 8, as will be described later. Thus, the power supply circuit section 8 is kept in an on state (see Fig. 12A).

Since the through holes 322 of the oil pipe 321a are all open in the state where the adjusting screw 327 is advanced in this way, the oil discharge flow path 375 and the overflow flow path 335 as shown in FIG. 12B. ) Is in communication with each other, so that the oil flowing from the oil inlet 302 as the motor 2 rotates passes through the oil discharge passage 375 through the first check valve 351 and the oil outlet 3a and the oil. It is discharged to the pipe 3b.

Figure 12a is a valve 320 for switching the operation mode of the hydraulic generator for the safety brake device of the elevator according to the present invention to automatic or manual mode is set to the automatic mode to turn the micro switch 81 ON (ON) state 12B and 12C show a state where oil in the flow path block 3 flows in this case. In particular, FIG. 12C shows the flow state of the oil therein by arbitrarily cutting the flow path block 3 up and down based on the flow paths.

When the end of the adjustment screw 327 of the automatic / manual mode switching valve 320 is closed from the switch terminal 81a of the micro switch 81 and the contact 81b is closed, power is supplied to the power supply circuit 8 so that the motor (2) is activated, at this time, the oil introduced into the flow path block 3 through the oil inlet 302 flows into the oil discharge pipe 3b in the direction of the arrow as shown in Figs. 12b and 12c. I'm going. In addition, when the oil can no longer flow through the safety brake device 9 of the elevator, the oil is bent toward the overflow flow path 335 in the oil pipe 321a of the automatic / manual mode switching valve 320. It exits into the oil reservoir (6) through the flow hole (331).

In the automatic mode shown in FIGS. 12A and 12C, when the cut-off power is supplied to the elevator facility again, the hydraulic pressure is supplied to the safety brake device 9 of the elevator by the operation of the motor 2 so that the cylinder 935 compresses the spring. The state of releasing the rope 92 is automatically performed. In other words, the manager does not need to take any action to release the rope 92 separately, but may wait until the power is turned on.

Fig. 13A shows a case where the automatic / manual mode switching valve 320 is set to the manual mode to keep the micro switch 81 off. Figs. 13B and 13C show the flow path block 3 in this case. The state in which oil in a flow flows is shown.

When the end of the adjustment screw 327 of the automatic / manual mode switching valve 320 pushes the switch terminal 81a of the micro switch 81, the contact 81b is opened so that the power supplied to the power supply circuit 8 is cut off. The motor 2 stops. In this state, not only the power supply of the power supply circuit 8 is cut off electrically, but also the flow of oil passing through the oil discharge flow path 375 in the flow path block 3 is fundamentally blocked, so that only the hand pump 5 is closed. Only the flow of oil through is possible.

As described above, in the manual mode illustrated in FIGS. 13B and 13C, when the power source is turned off, the brake 92 of the rope 92 is forcibly released and the elevator car must be operated. By moving the adjustment screw 327 of the mode switching valve 320 toward the flow path block 3, the possibility of supplying power to the power supply unit 8 is electrically blocked and the oil discharge flow path 375 is also mechanically removed. By blocking the means that only the flow of oil through the hand pump (5) is set to be possible.

On the other hand, Figure 14a to Figure 18c shows another configuration example of the hydraulic generator 1 for the safety brake device of the elevator according to the second embodiment of the present invention, the automatic / manual mode switching valve of the first embodiment An automatic / manual mode changeover valve 320 'is shown opposite in operation to 320. FIG.

14A is a plan view of the flow path block 3 that is one component of the hydraulic generator 1 for the safety brake device of an elevator according to the second embodiment of the present invention, and the automatic / manual mode switching valve 320 '. Except for the same as in Figure 9a.

14B is a perspective view of an automatic / manual mode changeover valve 320 'coupled to an opening 310 on the side of the flow path block 3. As shown in FIG. 14B and 16A, the automatic / manual mode switching valve 320 'includes an oil pipe 321a at the foremost front and through holes 322 formed around the oil pipe 321a. The oil pipe 321a is coupled into the fastening nut 324 via the sleeve 323, and the oil leakage is blocked by the sealing member 329. Then, a plunger 328a is attached to an end of the screw shaft 328 in the extension pipe 325 inserted into the fastening nut 324 to open the oil passage 321 and the holes 322 in the oil pipe 321a. The plunger 328a can be opened or closed in the oil pipe 321a by rotating the adjusting screw 327 formed at the other end of the screw shaft 328 supported by the head 326. On the other hand, the wire mesh 322a is wrapped around the through holes 322 of the oil pipe 321a to prevent the discharge of foreign substances in the oil.

FIG. 15 is a plan view showing, in a dotted line, an arrangement state of the flow paths 335, 345, 355 and 375 in the flow path block 3 of the hydraulic generator 1 according to the second embodiment of the present invention. Except), the same as in Fig. 10 (the first embodiment). In the second embodiment of the present invention, the automatic / manual mode switching valve 320 'is coupled to the overflow passage 335 via a connection plug 330, and the user has the automatic / manual mode switching valve ( The oil discharge flow path 375 and the overflow flow path 335 can be opened and closed at the same time by advancing the adjusting screw 327 back and forth 320 ').

16A and 16B are internal structural diagrams of the automatic / manual mode switching valve 320 'coupled to the flow path block 3 in the hydraulic generator for the safety brake device of an elevator according to the second embodiment of the present invention. Shows a state in which the plunger 328a in the automatic / manual mode switching valve 320 'is not retracted to block the through holes 322, and FIG. 16B shows the plunger 328a in the automatic / manual mode switching valve 320'. ) Shows a state in which the through holes 322 are blocked by moving forward.

Referring to Fig. 16A, the adjustment screw 327 is retracted in a direction away from the flow path block 3, and as described later, the adjustment screw 327 is connected to the micro switch 81 of the power supply circuit section 8. In contact, the power supply circuit section 8 is kept in an on state (see Fig. 17A). Since the through holes 322 of the oil pipe 321a are all open in the state in which the adjustment screw 327 is retracted, the oil discharge flow path 375 and the overflow flow path 335 as shown in FIG. 17B. ) Is in communication with each other, so that the oil flowing from the oil inlet 302 as the motor 2 rotates passes through the oil discharge passage 375 through the first check valve 351 and the oil outlet 3a and the oil. It is discharged to the pipe 3b.

On the other hand, Figure 16b shows a state in which the adjustment screw 327 is advancing close to the flow path block 3, wherein the micro switch 81 of the power supply circuit section 8 is opened, as will be described later, the power supply circuit section 8 Is kept off.

Fig. 17A is a valve 320 'for switching the operation mode of the hydraulic generator for a safety brake device of an elevator according to the second embodiment of the present invention to an automatic or manual mode is set to an automatic mode so that the micro switch 81 is turned on. Fig. 17B and Fig. 17C show a state in which oil in the flow path block 3 flows in this case. In particular, FIG. 17C shows a flow state of oil therein by arbitrarily cutting the flow path block 3 up and down based on the flow paths.

When the end of the adjustment screw 327 of the automatic / manual mode switching valve 320 'pushes the switch terminal 81a of the micro switch 81 to close the contact 81c, power is supplied to the power supply circuit 8. The motor 2 is operated, and at this time, oil introduced into the flow path block 3 through the oil inlet 302 through the oil inlet 302 to the oil discharge pipe 3b in the direction of the arrow as shown in FIGS. 17B and 17C. Flows out. In addition, when the oil can no longer flow into the safety brake device 9 of the elevator, the oil is deflected toward the overflow passage 335 in the oil pipe 321a of the automatic / manual mode switching valve 320 '. It exits into the oil reservoir (6) through the overflow hole (331).

In the automatic mode shown in Figs. 17A and 17C, when the cut-off power is supplied to the elevator facility again, the hydraulic pressure is supplied to the safety brake device 9 of the elevator by the operation of the motor 2 so that the cylinder 935 compresses the spring. The state of releasing the rope 92 is automatically performed. In other words, the manager does not need to take any action to release the rope 92 separately, but may wait until the power is turned on.

Fig. 18A shows a case where the automatic / manual mode switching valve 320 'is set to the manual mode to keep the micro switch 81 OFF. Figs. 18B and 18C show a flow path block in this case. 3) shows a state in which oil flows.

When the end of the adjustment screw 327 of the automatic / manual mode switching valve 320 'is separated from the switch terminal 81a of the micro switch 81, the contact 81c is opened to supply power to the power supply circuit 8. Is cut off and the motor 2 stops. In this state, the power supply of the power supply circuit 8 is electrically cut off, and the flow of oil passing through the oil discharge flow path 375 in the flow path block 3 is essentially blocked, so that only the oil through the hand pump 5 is blocked. Only the flow of is possible.

19 is a hydraulic circuit diagram of a hydraulic generator for a safety brake device of an elevator according to the present invention. In Fig. 19, reference numeral 935 denotes a hydraulic cylinder 935 of the elevator safety brake device 9, 81 denotes a micro switch, 5 denotes a hand pump, 351 denotes a first checkbell, and 341 and 342 respectively. Means 2 check valve and 3rd check valve. 2 is a motor, 4 is an oil pump, and 6 is an oil reservoir.

Hydraulic generating device for the safety brake device of the elevator according to the present invention, by forming both the automatic mode flow path and the hand pump flow path in a single block of metal material to avoid the use of separate complicated pipe piping or hose piping high pressure oil By blocking the risk of leakage, there is an advantage to increase the safety and ease of use and maintenance management.

In addition, the hydraulic generator for the safety brake device of the elevator according to the present invention, in switching between the automatic mode for generating the hydraulic pressure by the drive of the motor and the manual mode for generating the hydraulic pressure by operating the hand pump manually, Euroblock The switching between the automatic mode and the manual mode is performed according to the coupling state of the automatic / manual mode switching valve inserted into the micro switch in contact with the adjustment screw of the valve end, so that the adjustment screw is simply moved forward or backward. The mechanical and electrical states between the automatic mode and the manual mode can be easily changed all at once, thereby improving convenience and safety.

1 is a structural diagram of a general elevator safety brake system.

Figure 2 is a perspective view showing the overall configuration of the hydraulic generating device for a safety brake device of an elevator according to the present invention.

3 to 5 are a perspective view and a cross-sectional view showing the structure and operation of the safety brake device of the elevator to which the hydraulic generator according to the present invention is applied.

Figure 6 is a perspective view of the entire separation of the hydraulic generator for the safety brake device of the elevator according to the present invention.

7A to 7E are views illustrating the structure and operating mechanism of the oil pump 4 which is one component of the hydraulic generator for the safety brake device of an elevator according to the present invention.

8 shows a motor 2 and a flow path block 3 constituting a hydraulic generator for a safety brake device of an elevator according to the present invention.

Figure 9a is a plan view of the flow path block 3 which is one component of the hydraulic generator 1 for the safety brake device of the elevator according to the present invention, Figure 9b is coupled to the opening 310 of the side of the flow path block (3) Is a perspective view of an automatic / manual mode switching valve 320.

FIG. 10 is a plan view showing in a dotted line the arrangement of the flow paths 335, 345, 355 and 375 in the flow path block 3 of the hydraulic generator 1 according to the present invention.

11A and 11B are internal structural diagrams of the automatic / manual mode switching valve 320 coupled to the flow path block 3 in the hydraulic generator for the safety brake device of an elevator according to the present invention, and FIG. 11A shows the automatic / manual mode switching. The tubular valve element 328b in the valve 320 retracts to block the through holes 322, and FIG. 11B shows the tubular valve element in the automatic / manual mode switching valve 320 to advance through the through holes 322. FIG. Shows a state without blocking.

Figure 12a is a valve 320 for switching the operation mode of the hydraulic generator for the safety brake device of the elevator according to the present invention to automatic or manual mode is set to the automatic mode to turn the micro switch 81 ON (ON) state 12B and 12C show a state where oil in the flow path block 3 flows in this case.

Fig. 13A shows a case where the automatic / manual mode switching valve 320 of Fig. 12A is set to the manual mode to keep the micro switch 81 in the OFF state, and Figs. 13B and 13C are flow paths in this case. The state in which the oil in the block 3 flows is shown.

FIG. 14A is a plan view of a flow path block 3 that is one component of the hydraulic generator 1 for a safety brake device of an elevator according to a second embodiment of the present invention, and FIG. 14B is an opening of a side surface of the flow path block 3. Is a perspective view of an automatic / manual mode selector valve 320 'coupled to 310.

Fig. 15 is a plan view showing in a dotted line the arrangement of the flow paths 335, 345, 355 and 375 in the flow path block 3 of the hydraulic generator 1 according to the present invention. The automatic / manual mode switching valve 320 'according to the second embodiment is shown. ) Is shown.

16A and 16B are internal structural diagrams of the automatic / manual mode switching valve 320 'coupled to the flow path block 3 in the hydraulic generator for the safety brake device of an elevator according to the second embodiment of the present invention. Shows a state in which the plunger 328a in the automatic / manual mode switching valve 320 'is not retracted to block the through holes 322, and FIG. 16B shows the plunger 328a in the automatic / manual mode switching valve 320'. ) Shows a state in which the through holes 322 are blocked by moving forward.

Fig. 17A is a valve 320 'for switching the operation mode of the hydraulic generator for a safety brake device of an elevator according to the second embodiment of the present invention to an automatic or manual mode is set to an automatic mode so that the micro switch 81 is set. Fig. 17B and Fig. 17C show a state in which oil in the flow path block 3 flows in this case.

Fig. 18A shows a case where the automatic / manual mode switching valve 320 'of Fig. 17A is set to the manual mode to keep the micro switch 81 in the OFF state, and Figs. 18B and 18C show in this case. The state in which the oil in the flow path block 3 flows is shown.

19 is an overall hydraulic circuit diagram of a hydraulic generator for a safety brake device of an elevator according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: hydraulic power supply 2: motor

2a: spindle 2b: electric wire

3: Euroblock 3a: oil outlet

3b: oil discharge pipe 3c: hydraulic pipe

4: oil pump 5: hand pump

5a: handle 6: oil reservoir

6a: sight glass 6b: vent

7: case 8: power circuit

9: brake system 30: upper surface

30a: Hermetic seal 31a: Bolt

31b: Bolted hole 32: Valve set

40: oil pump cover 40a: flow path

40b: oil outlet 41: bolt

41a: bolt hole 42: filter

45: body 81: micro switch

81a: switch terminal 81b, 81c: contact

82: wire 92: rope

300: central hole 301a: pump fixing bolt hole

302: oil inlet 303: valve

320, 320 ': automatic / manual mode switching valve

321: oil passage 321a: oil pipe

322: through hole 323: sleeve

325: extension tube 327: adjustment screw

328: screw shaft 328a: tubular valve element

328b: plunger 329: sealing member

330: connection plug 331: overflow outlet

331a: oil groove 335: overflow channel

341,342,351: check valve 345: flow path for hand pump

355: oil introduction passage 375: oil discharge passage

450: oil inlet 450b, 450c: hermetic seal

451a, 451b, 453a, 453b: bolt fasteners

456a: drive gear 456b: driven gear

911,912: metal angle member 913,914: wall

915, 916: spring 917: driven shaft of cam

918,919 metal link 920,921 camming surface

922: movable metal brake shoe 923: guide member

924: fixed metal brake shoe 927: spring

930: connecting shaft 935: cylinder

941: latch engagement member 942: latch

943: solenoid 946: arched slot

CL: Centerline E: Elevator

P: oil pump coupling area

Claims (16)

When the power supply to the elevator facility is cut off, the gap between the metallic brake shoes 922 and 924 facing each other is brought close to each other to compress the hoist rope 92 of the elevator 94 to exert a braking force and when the power supply to the elevator facility is applied. In the elevator braking device (9) for restoring the interval of the metallic brake shoes (922,924) by the operation of the hydraulic cylinder 935 so that the hoist rope (92) can pass therebetween, the brake device of the elevator The hydraulic generator for supplying the hydraulic pressure required for the hydraulic cylinder 935 in the A motor 2 for generating a rotational force by electric energy to rotate the main shaft 2a projecting outward at a predetermined speed; Mounted above the motor (2), there is formed a flow path through which oil can pass, and the center hole (300) in which the main shaft (2a) of the motor (2) is inserted is formed in the center A flow path block 3; An oil reservoir 6 coupled to the flow path block 3 and filled with oil, and having a sight glass 6a and an air-breather 6b formed therein; An upper cover 40 mounted above the flow block 3 and having a filter 42 for sucking oil in the oil reservoir 6 and an inner flow passage 40a through which the oil passes, and the upper cover Body for compressing and pumping oil by rotation of oil inlet 450 for receiving oil discharged through flow path 40a of 40 and gears 456a and 456b installed in pump space 460 therein. An oil pump 4 with 45; And And a power circuit unit (8) for supplying power to the motor (2). According to claim 1, wherein the flow path block (3) is the oil inlet 302 formed in accordance with the position where the oil pumped compression from the oil pump 4 and the oil passing through the flow path (inner path) therein An oil outlet 3a discharged to the outside; An oil inflow passage 355 connected from the oil inlet 302, an oil discharge passage 375 connected to the oil inlet 355, and the oil discharge passage 375 inside the passage block 3. The hydraulic flow generating device for a safety brake of an elevator, characterized in that the flow passage 335 is connected to the formed. 3. The oil groove of claim 2, wherein an overflow outlet 331 connected to the oil discharge passage 375 and an oil groove extending from the overflow outlet 331 to a predetermined length are formed on an upper surface 30 of the passage block 3. 331a, characterized in that the hydraulic generating device for a safety brake of the elevator. 4. The safety brake device of an elevator according to claim 3, wherein a first check valve (351) is provided on the oil inflow passage (355) to allow only the flow of oil toward the oil discharge passage (375). Hydraulic generator The automatic / manual mode switching valve (100) according to claim 3 or 4, wherein the overflow passage (335) in the passage block (3) extends to the side surface of the passage block (3). 320 is inserted and coupled, the automatic / manual mode switching valve 320 is the oil discharge flow path 375 and the overflow flow path by moving the tubular valve element 328b therein in the longitudinal direction of the valve 320 A hydraulic generating device for a safety brake device for an elevator, characterized in that the opening and closing (335) at the same time. The hydraulic generating device for the safety brake device of the elevator further comprises a hand pump (5) attached to the side of the flow path block (3); A hand pump flow path 345 is formed on the oil discharge flow path 375 in the flow path block 3 between the oil discharge port 3a and an insertion position of the automatic / manual mode switching valve 320 '; The opening of one of the two openings formed by extending the hand pump flow passage 345 to the side surfaces of the oil block 3 is sealed by the plug 340 is fastened, the other opening is the hand pump (5) the hydraulic generator for the safety brake device of an elevator, characterized in that connected to the pumping space. The flow path 345 of the hand pump is connected to an opening for oil inflow formed on the upper surface 30 of the flow path block 3, and only the oil inflow into the flow path block 3 is formed in the opening. An allowable second check valve 341 is provided, and the oil outlet 3a is disposed between the position of the oil discharge port 3a and the position connected to the second check valve 341 on the hand pump flow path 345. Hydraulic generating device for the safety brake device of the elevator, characterized in that the third check valve 342 is installed to allow only the flow of oil to the side. The method of claim 7, wherein the automatic / manual mode switching valve 320 includes an oil pipe 321 a having an oil passage 321, a plurality of through holes 322 formed around the oil pipe 321 a, and An extension pipe 325 extending concentrically with the oil pipe 321a, an adjustment screw part 327 coupled to an end of the extension pipe, and disposed along the longitudinal direction of the extension pipe 325, and the adjustment screw part ( Screw shaft 328 connected to the 327, and the other end of the screw shaft 328 and is movable back and forth in the longitudinal direction of the oil pipe 321a in the oil pipe 321a to the through holes ( 322) a tubular valve element (328b) capable of opening and closing, characterized in that the hydraulic generator for the safety brake device of the elevator. 9. The safety of the elevator according to claim 8, wherein the power circuit section (8) further comprises switch means (81) for contacting the adjusting screw portion (327) of the automatic / manual mode switching valve (320). Hydraulic generator for brake system. The contact means of claim 9, wherein the switch means (81) is in contact with or separated from the switch terminal (81a) and the switch terminal (81a) in contact with the adjustment screw portion 327 of the automatic / manual mode switching valve (320). (81b); The switch means 81 is connected to the switch terminal 81a and the contact 81b in a state where the adjusting screw portion 327 is advanced toward the flow path block 3 so that the motor ( 2) Power is supplied to the switch, and in the state where the adjusting screw portion 327 is retracted away from the flow path block 3, the switch terminal 81a is separated from the contact portion 81b from the power supply circuit portion 8. The power supply to the motor (2) is cut off, characterized in that the hydraulic generator for the safety brake device of the elevator. The automatic / manual mode switching valve (100) according to claim 3 or 4, wherein the overflow passage (335) in the passage block (3) extends to the side surface of the passage block (3). 320 'is inserted and coupled to the automatic / manual mode switching valve 320', the plunger 328a therein moves in the longitudinal direction of the valve 320 'so that the oil drain passage 375 and the overflow A hydraulic generator for a safety brake device for an elevator, characterized in that the flow path (335) can be opened and closed at the same time. The hydraulic generating device for the safety brake device of the elevator further comprises a hand pump (5) attached to the side of the flow path block (3); A hand pump flow path 345 is formed on the oil discharge flow path 375 in the flow path block 3 between the oil discharge port 3a and an insertion position of the automatic / manual mode switching valve 320 '; The opening of one of the two openings formed by extending the hand pump flow passage 345 to the side surfaces of the oil block 3 is sealed by the plug 340 is fastened, the other opening is the hand pump (5) the hydraulic generator for the safety brake device of an elevator, characterized in that connected to the pumping space. The flow path according to claim 12, wherein the hand pump flow passage 345 is connected to an opening for oil inflow formed on the upper surface 30 of the flow path block 3, and only the oil inflow into the flow path block 3 is formed in the opening. An allowable second check valve 341 is provided, and the oil outlet 3a is disposed between the position of the oil discharge port 3a and the position connected to the second check valve 341 on the hand pump flow path 345. Hydraulic generating device for the safety brake device of the elevator, characterized in that the third check valve 342 is installed to allow only the flow of oil to the side. The method of claim 13, wherein the automatic / manual mode switching valve 320 ', the oil pipe 321a is formed with an oil passage 321, a plurality of through-holes 322 formed around the oil pipe 321a, The extension pipe 325 concentrically extending with the oil pipe 321a, the adjustment screw portion 327 coupled to the end of the extension pipe, disposed in the longitudinal direction of the extension pipe 325 and the adjustment screw portion The screw shaft 328 connected to the 327, and the other end of the screw shaft 328 and is movable back and forth in the longitudinal direction of the oil pipe 321a in the oil pipe 321a, the through holes A hydraulic generator for a safety braking device for an elevator, characterized by comprising a plunger (328a) capable of opening and closing (322). 15. An elevator according to claim 14, characterized in that the power circuit section (8) further comprises switch means (81) for contacting the adjusting screw portion (327) of the automatic / manual mode switching valve (320 '). Hydraulic generator for safety braking system. The switch means (81) according to claim 15, wherein the switch means (81) is in contact with or separated from the switch terminal (81a) and the switch terminal (81a) in contact with the adjustment screw portion 327 of the automatic / manual mode switching valve (320 '). Has a contact 81c; The switch means (81) is the motor (2) from the power supply circuit section (8) away from the contact (81c) the switch terminal (81a) in the state that the adjusting screw section 327 is advanced toward the flow path block (3) The power supply to the power supply unit 8 is cut off and the control screw unit 327 retreats away from the flow path block 3 so that the switch terminal 81a and the contact 81c come into contact with each other. Power is supplied from the motor (2) to the hydraulic generator for a safety brake of the elevator.