CN112850542A

CN112850542A - Construction elevator safety brake device

Info

Publication number: CN112850542A
Application number: CN202110001264.9A
Authority: CN
Inventors: 孙贵现
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-05-28

Abstract

The invention relates to the technical field of building equipment, and discloses a safety brake device of a construction elevator, which comprises a shell, wherein a friction ring is fixedly arranged inside the conical part of the shell, a cone hub is movably sleeved on the inner ring of the friction ring, a cone drum is uniformly and fixedly arranged on the inner side of the cone hub, one side of a gear, which is close to the shell, is fixedly connected with a centrifugal rotating block seat through a shaft, centrifugal blocks are symmetrically and movably arranged on the outer ring of the centrifugal rotating block seat, annular magnets positioned between the centrifugal blocks and the cone drum are respectively and correspondingly and fixedly arranged on the inner bottom wall of the cone hub and the inner wall of the shell, an annular groove is formed inside the cone of the cone hub, one end of the annular groove is communicated with the inner ring of the cone hub, a strip-shaped magnet is fixedly arranged on one side of the centrifugal blocks, which is close to the centrifugal rotating block seat, two iron cores are symmetrically and fixedly arranged on the centrifugal rotating block, the safety is higher.

Description

Construction elevator safety brake device

Technical Field

The invention relates to the technical field of construction equipment, in particular to a safety brake device of a construction elevator.

Background

Material transportation and people in present building construction reciprocate the form that all adopted the elevator basically, traditional lift construction elevator just can be widely used in the building owing to adopted and prevented weighing down the breaker, car operation through motor drive, when the condition that appears suddenly tenesmus when descending, prevent weighing down the inside centrifugal piece of breaker and drive it and rotate and produce the friction and brake all around to back to under the too fast condition of rotational speed and joint to the awl hub, later can also calculate braking distance through its inside belleville spring's compression condition, but prevent weighing down the breaker still has certain problem in-service use:

the centrifugal block receives the pulling of spring, only after the rotational speed when descending exceeded certain regulation, the centrifugal block just can overcome the elasticity of spring under the condition of centrifugal force and throw away all around and with the awl drum joint on the awl hub together, later drive awl hub and rotate and friction braking together, owing to also have centrifugal force when not reaching the speed limit, consequently the spring just receives certain tensile effect easily, along with the oscilaltion and the acceleration and deceleration motion of elevator, just lead to the spring to appear becoming invalid or elasticity appears weakening, thereby trigger braking effect easily, utilize the spring to pull simultaneously and be in tensile state after centrifugal block and awl drum joint all the time, will lead to the spring to appear certain torsion degree under the condition of high-speed rotation like this, thereby also can take place to warp, the use of preventing weighing down the safety device has been influenced.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides a safety brake device of a construction elevator, which has the advantages of high safety and long service life and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a construction elevator safety brake device, includes the shell, and one side fixed mounting of shell has the shroud, and the outer lane fixed mounting of shell has safety switch, and the gear has been cup jointed through the axle activity to the opposite side of shell, the inside fixed mounting at shell cone position has the friction ring, the inner circle activity of friction ring has cup jointed the awl hub, the outer lane movable mounting that the awl hub is close to shroud one end has disc spring, the awl hub is close to the fixed copper nut that has cup jointed in the tip outer lane of shroud one end, one side fixed mounting that the awl hub is close to the shroud has the uninstallation bolt, the interior diapire of awl hub corresponds fixed mounting respectively with the inner wall of shell and is located the annular magnet between centrifugal block and the awl drum, the inside one end of seting up annular and annular of awl hub cone communicates the awl hub inner circle, the one side activity that the annular is close, the inner circle movable mounting of annular has the first sliding ring that leads electrically, the outer lane fixedly connected with of the first sliding ring that leads electrically rotates the electrically conductive support, rotate one side movable mounting that the electrically conductive support is close to the awl hub outer lane and have the guide pulley, centrifugation turning block seat side one end stretches into the diapire middle part of awl hub and has cup jointed the second in the activity of stretching into the end outer lane and lead electrically the sliding ring, the first sliding ring that leads electrically is connected with the second and leads electrically the sliding ring linear, one side and the rotation of centrifugation turning block seat outer lane connect fixedly connected with conducting rod between the electric ring.

Preferably, the fixed mounting that the centrifugation piece is close to centrifugation turning block seat one side has bar magnet, the symmetry fixed mounting that is of centrifugation turning block seat has two iron cores, two fixed mounting has the board of insulating magnetism between the iron core, the outer lane symmetry fixed mounting of centrifugation turning block seat has the bracing piece perpendicular with the conducting rod.

Preferably, the annular magnets are strong magnets, the conducting rod, the supporting rod, the conical drum and the centrifugal block are located between the two annular magnets in the vertical direction, and the conical drum and the centrifugal block are located between the conducting rod and the annular magnet close to one side of the gear.

Preferably, the outer ring of the iron core is wound with a wire, the iron core corresponds to one magnetic pole of the bar magnet in the axial direction, and one end of the wire of the outer ring of the iron core is connected with the conducting rod, and is communicated with the middle part of the second conducting slip ring.

Preferably, the outer ring of the rotary electricity-receiving ring, the rotary conductive support and the conductive rod is provided with an insulating layer, and the rotation of the centrifugal block has angle limitation and the maximum rotation angle is just the angle when the centrifugal block is clamped with the cone drum.

The invention has the following beneficial effects:

compared with the prior art, the conical hub is internally provided with the annular groove and is sleeved with the conductive device, the outer side of the centrifugal rotating block seat is connected with the conductive rod, and the inner part of the centrifugal rotating block seat is provided with the electromagnetic iron core structure, a vertical conducting rod is arranged in a magnetic field formed by the annular magnet, the conducting rod cuts a magnetic induction line along with the rotation of the gear and forms current in a lead, the end part of the iron core generates magnetic force to attract the centrifugal block, the problems of the service life and the fatigue strength of the spring are avoided by utilizing the magnetic force to replace the elastic force, the probability of dangerous accidents is greatly reduced, and simultaneously, when braking, the centrifugal block is not influenced by excessive force, so that the service life of the centrifugal block is not influenced, and the long-term safe working performance of the anti-falling safety device is ensured comprehensively.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an overall cross-sectional view of the structure of the present invention;

FIG. 3 is a cross-sectional view of the rotary power ring of the present invention;

FIG. 4 is a cross-sectional view of a centrifugal block of the present invention;

fig. 5 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a housing; 2. a cover; 3. a safety switch; 4. a gear; 5. a friction ring; 6. a cone hub; 601. a ring groove; 7. a copper nut; 8. a centrifugal rotating block seat; 9. unloading the bolts; 10. a belleville spring; 11. a cone drum; 12. a centrifugal block; 13. a ring magnet; 14. rotating the power receiving ring; 15. rotating the conductive bracket; 16. a first conductive slip ring; 17. a second conductive slip ring; 18. a conductive rod; 19. a bar magnet; 20. an iron core; 21. a magnetic insulation plate; 22. a support bar; 23. and (4) a guide wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a safety brake device for a construction elevator comprises a housing 1, a cover cap 2 is fixedly installed on one side of the housing 1, a safety switch 3 is fixedly installed on an outer ring of the housing 1, a gear 4 is movably sleeved on the other side of the housing 1 through a shaft, a friction ring 5 is fixedly installed inside a conical body of the housing 1, a cone hub 6 is movably sleeved on an inner ring of the friction ring 5, a disc spring 10 is movably installed on an outer ring of the cone hub 6 close to one end of the cover cap 2, a copper nut 7 is fixedly sleeved on an outer ring of an end portion of the cone hub 6 close to one end of the cover cap 2, an unloading bolt 9 is fixedly installed on one side of the cone hub 6 close to the cover cap 2, cone drums 11 are uniformly and fixedly installed on the inner side of the cone hub 6, a centrifugal rotor seat 8 is fixedly connected to one side of the gear 4 close to the housing 1 through a shaft, centrifugal rotors 12 are symmetrically and movably installed on the outer ring-shaped inner wall of the centrifugal rotor A magnet 13, a ring groove 601 is provided in the conical interior of the cone hub 6, one end of the ring groove 601 is communicated with the inner ring of the cone hub 6, one side of the ring groove 601 near the centrifugal rotor block seat 8 is movably sleeved with a rotating electricity-receiving ring 14, the inner ring of the ring groove 601 is movably provided with a first conductive slip ring 16, the outer ring of the first conductive slip ring 16 is fixedly connected with a rotating conductive bracket 15, one side of the rotating conductive bracket 15 near the outer ring of the cone hub 6 is movably provided with a guide wheel 23, one end of the side of the centrifugal rotor block seat 8 extends into the middle of the bottom wall of the cone hub 6 and is movably sleeved with a second conductive slip ring 17, the first conductive slip ring 16 is linearly connected with the second conductive slip ring 17, a conductive rod 18 is fixedly connected between one side of the outer ring of the centrifugal rotor block seat 8 and the rotating electricity-receiving ring 14, a bar magnet 19 is fixedly installed on one side of the centrifugal rotor block 12 near, the insulating magnetic plate 21 is fixedly installed between the two iron cores 20 and made of a material for insulating a magnetic field to prevent the two iron cores 20 from influencing each other when generating magnetic force, the outer ring of the centrifugal rotating block seat 8 is symmetrically and fixedly installed with the supporting rods 22 perpendicular to the conducting rod 18, and the supporting rods 22 are used for ensuring that the conducting rod 18 cannot be subjected to large twisting force due to rotation.

Wherein, ring magnet 13 adopts the strong magnet, utilize two ring magnet 13 relative installations to form the high magnetic field, cooperation subsequent guide arm cutting magnetic induction line produces the electromotive force, conducting rod 18, bracing piece 22, awl drum 11 and centrifugal piece 12 all are located the position between two ring magnet 13 in vertical direction, awl drum 11 and centrifugal piece 12 are located conducting rod 18 and the position between the ring magnet 13 that is close to gear 4 one side, rotate when cutting magnetic induction line with awl drum 11 and centrifugal piece 12 noninterference, guarantee can realize three hundred sixties convenience when the pivoted.

Wherein, the outer lane of iron core 20 twines there is the wire, iron core 20 corresponds a magnetic pole of bar magnet 19 in the axial, the wire one end of iron core 20 outer lane is connected one end with conducting rod 18 and is led the middle part intercommunication of electrical slip ring 17 with the second, constitute an electric loop through the wire, wherein twine can make the tip of iron core produce magnetism in the iron core 20 outer lane, an effect for playing an attraction to bar magnet 19, it can not produce the loss to compare in the spring, whole safety device's that prevents weighing down use precision has been guaranteed, the security improves simultaneously.

Wherein, the outer lane that connects electrical ring 14, rotation conductive support 15 and conducting rod 18 all is equipped with the insulating layer, prevents the electric leakage, and the rotation of centrifugation piece 12 has angle restriction and the angle when the biggest turned angle is just with awl drum 11 joint, plays spacing effect, guarantees to have certain restriction in the joint, still does benefit to subsequent better returning centrifugation piece 12 to centrifugation turning block seat 8 outer lane when reseing simultaneously.

The working principle is that in a certain speed limit range during normal operation of an elevator, the gear 4 drives the centrifugal rotor block seat 8 in the anti-falling safety device to rotate and drives the conducting rod 18 to rotate circumferentially, the conducting rod 18 is perpendicular to a magnetic field formed by the annular magnet 13, so that current can be generated inside the magnetic field, the current forms a loop through a lead and the first conducting slip ring 16 and the second conducting slip ring 17, the end of the iron core 20 generates magnetic force in a lead winding mode of the outer ring of the iron core 20, and the magnetic force can attract the bar magnet 19 on the centrifugal block 12, so that the centrifugal block 12 is attracted to the outer ring position of the centrifugal rotor block seat 8 by the magnetic force;

when the elevator breaks down suddenly, the rotating speed of the gear 4 is continuously increased at the moment, the centrifugal rotating block seat 8 is driven to rotate and accelerate, the speed of the conducting rod 18 cutting the magnetic field of the annular magnet 13 is increased, the generated electromotive force is increased, namely, the internal current is increased, the magnetic force on the iron core 20 is increased, after the speed reaches a limit value, the magnetic force on the iron core 20 is smaller than the centrifugal force on the centrifugal block 12, the centrifugal block 12 is thrown outwards and clamped on the conical drum 11, then the conical drum 11 is driven to rotate the friction ring 5, so that the speed is reduced, the copper nut 7 at the end part of the conical hub 6 also moves inwards to drive the conical hub 6 to move inwards, when the conical hub 6 is completely contacted with the inside of the shell 1, the friction force reaches a certain magnitude, the rotation of the centrifugal rotating block seat 8 can be limited, and the elevator box body is limited to fall through the gear 4, playing a role of protection.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a construction elevator safety brake device, includes shell (1), and one side fixed mounting of shell (1) has shroud (2), and the outer lane fixed mounting of shell (1) has safety switch (3), and gear (4), its characterized in that have been cup jointed through the axle activity to the opposite side of shell (1): the inner fixed mounting of the cone body part of the shell (1) is provided with a friction ring (5), the inner ring of the friction ring (5) is movably sleeved with a cone hub (6), the outer ring of the cone hub (6) close to one end of the cover cap (2) is movably mounted with a belleville spring (10), the end outer ring of the cone hub (6) close to one end of the cover cap (2) is fixedly sleeved with a copper nut (7), one side of the cone hub (6) close to the cover cap (2) is fixedly mounted with an unloading bolt (9), the inner side of the cone hub (6) is uniformly and fixedly mounted with a cone drum (11), one side of the gear (4) close to the shell (1) is fixedly connected with a centrifugal rotor seat (8) through a shaft, the outer ring of the centrifugal rotor seat (8) is symmetrically and movably mounted with a centrifugal block (12), the inner bottom wall of the cone hub (6) and the inner wall of the shell (1) respectively correspond to fixedly mounted with an annular magnet (13) located, a ring groove (601) is arranged in the conical inner part of the cone hub (6), one end of the ring groove (601) is communicated with the inner ring of the cone hub (6), one side of the ring groove (601) close to the centrifugal rotating block seat (8) is movably sleeved with a rotating electricity-connecting ring (14), a first conductive slip ring (16) is movably arranged on the inner ring of the ring groove (601), a rotary conductive bracket (15) is fixedly connected to the outer ring of the first conductive slip ring (16), a guide wheel (23) is movably arranged on one side of the rotating conductive bracket (15) close to the outer ring of the cone hub (6), one end of the centrifugal rotating block seat (8) side extends into the middle part of the bottom wall of the cone hub (6), and a second conductive slip ring (17) is movably sleeved on the outer ring of the extending end, the first conductive slip ring (16) is linearly connected with the second conductive slip ring (17), a conductive rod (18) is fixedly connected between one side of the outer ring of the centrifugal rotating block seat (8) and the rotating power receiving ring (14).

2. The safety brake device of a construction elevator according to claim 1, wherein: the fixed mounting that centrifugal piece (12) are close to centrifugal rotating block seat (8) one side has bar magnet (19), what centrifugal rotating block seat (8) were symmetry fixed mounting has two iron cores (20), two fixed mounting has magnetic insulation board (21) between iron core (20), the outer lane symmetry fixed mounting of centrifugal rotating block seat (8) has with conducting rod (18) vertically bracing piece (22).

3. The safety brake device of a construction elevator according to claim 1, wherein: the annular magnets (13) are strong magnets, the conducting rod (18), the supporting rod (22), the cone drum (11) and the centrifugal block (12) are located between the two annular magnets (13) in the vertical direction, and the cone drum (11) and the centrifugal block (12) are located between the conducting rod (18) and the annular magnet (13) close to one side of the gear (4).

4. The safety brake device of a construction elevator according to claim 2, wherein: the outer ring of the iron core (20) is wound with a lead, the iron core (20) corresponds to one magnetic pole of the bar magnet (19) in the axial direction, and one end of the lead on the outer ring of the iron core (20) is connected with the conducting rod (18) and communicated with the middle of the second conducting slip ring (17).

5. The safety brake device of a construction elevator according to claim 1, wherein: the outer rings of the rotary electricity receiving ring (14), the rotary electricity conducting support (15) and the electricity conducting rod (18) are provided with insulating layers, the rotation of the centrifugal block (12) is limited by an angle, and the maximum rotation angle is just the angle when the centrifugal block is clamped with the cone drum (11).