Winch with limiting control function

Abstract

The utility model discloses a winch with a limiting control function, which comprises a support frame and an emergency braking mechanism, and a mounting hole is formed in the lower surface of the support frame; the emergency braking mechanism comprises a threaded rod mounting seat, sliding blocks, a connecting rod, a two-way threaded rod and a clamping piece, the threaded rod mounting seat is fixedly connected to the middle of the upper surface of the supporting frame, the two-way threaded rod is rotationally connected into the threaded rod mounting seat, and the outer surface of the two-way threaded rod is in threaded connection with the symmetrically-distributed sliding blocks; according to the winch with the limiting control function, when the speed reducer breaks down due to the fact that the load is too large, the encoder transmits abnormal information to the single-chip microcomputer, and the single-chip microcomputer transmits the abnormal information to the winch; therefore, the clamping piece is controlled to conduct emergency braking on the output shaft of the speed reducer, and the safety of the winch in the using process is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heavy lifting technology field, concretely is the winch with limit position control function. BACKGROUND

[0002] With the development of society, our city is changing day by day, and many high-rise buildings are rising, when building the building, often need to transport reinforced concrete to high layer, it is difficult to realize by manpower, often use the winch with limit position control function to assist operation;

[0003] The existing winch with limit position control function, the output shaft of speed reducer is rotated through singlechip control, the running of speed reducer is monitored in real time by encoder, the running of speed reducer is accurately controlled, the output shaft of speed reducer drives rotating drum to rotate, makes the steel cable on rotating drum to lift heavy object, to realize heavy lifting and transport in this way;

[0004] The existing winch with limit position control function will cause load to fall quickly and cause damage to work site or even threaten personal safety when load is too large to cause speed reducer failure, has certain security risk, for this, the winch with limit position control function is provided. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problem of overcoming the existing defects, provides the winch with limit position control function, when the load of the winch with limit position control function is too large to cause speed reducer failure, the abnormal information is transmitted to singlechip by encoder, so as to control the emergency braking of the output shaft of speed reducer by clamping piece, improve the safety of winch in use, can effectively solve the problems in the background art.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: the winch with limit position control function, including support frame, the lower surface of support frame is provided with mounting hole, still including emergency brake mechanism;

[0007] Emergency brake mechanism: it includes threaded rod mounting seat, sliding block, connecting rod, bidirectional threaded rod and clamping piece, the upper surface middle part of support frame is fixedly connected with threaded rod mounting seat, the inside rotationally connected with bidirectional threaded rod of threaded rod mounting seat, the outer surface of bidirectional threaded rod is screw connected with the sliding block of symmetry distribution, the upper surface of sliding block is all fixedly connected with connecting rod, and the side near the middle part of bidirectional threaded rod of connecting rod is all fixedly connected with clamping piece, when the load of the winch with limit position control function is too large to cause speed reducer failure, the abnormal information is transmitted to singlechip by encoder, so as to control the emergency braking of the output shaft of speed reducer by clamping piece, improve the safety of winch in use.

[0008] Further, the upper surface of the support frame is fixedly connected with a single-chip microcomputer at the rear side, an input end of the single-chip microcomputer is electrically connected with an output end of an external power supply, the single-chip microcomputer controls the operation of the speed reducer and the motor, and signals transmitted by an encoder are processed.

[0009] Further, the upper surface of the support frame is fixedly connected with a motor at the right side, an output shaft of the motor is fixedly connected with the right end of the bidirectional threaded rod, an input end of the motor is electrically connected with an output end of the single-chip microcomputer, and driving force is provided.

[0010] Further, the upper surface of the support frame is fixedly connected with symmetrically distributed mounting plates at the rear side, a transmission shaft is rotatably connected between the two mounting plates, a metal rotating disc is fixedly connected to the front side of the outer surface of the transmission shaft, a winding drum is fixedly connected to the rear end of the outer surface of the transmission shaft, and a steel cable is arranged on the outer surface of the winding drum and used for lifting a load.

[0011] Further, the upper surface of the support frame is fixedly connected with a speed reducer at the front side, a rear end of an output shaft of the speed reducer is fixedly connected with a front end of the transmission shaft, an input end of the speed reducer is electrically connected with an output end of the single-chip microcomputer, and the rotation of the winding drum is controlled.

[0012] Further, the front surface of the speed reducer is fixedly connected with an encoder, the encoder is bidirectionally electrically connected with the single-chip microcomputer, and the output shaft of the speed reducer is monitored.

[0013] Further, the upper surface of the support frame is fixedly connected with symmetrically distributed mounting plates at the rear side, a transmission shaft is rotatably connected between the two mounting plates, a metal rotating disc is fixedly connected to the front side of the outer surface of the transmission shaft, a winding drum is fixedly connected to the rear end of the outer surface of the transmission shaft, and a steel cable is arranged on the outer surface of the winding drum and used for lifting a load.

[0014] Compared with the prior art, the winch has the following advantages:

[0015] When the load of the winch is too large to cause a speed reducer fault, the load can rapidly move the movable end of the steel cable, drive the winding drum to rotate rapidly, and when the encoder monitors abnormal rotation of the output shaft of the speed reducer, signals are transmitted to the single-chip microcomputer, at this time, the single-chip microcomputer controls the operation of the motor, the motor is started to drive the motor output shaft to rotate, drive the bidirectional threaded rod to rotate, move the two sliding blocks to the middle of the bidirectional threaded rod, drive the connecting rod to move, and make the clamping pieces clamp the metal rotating disc, so that the emergency braking of the winding drum is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of the utility model.

[0017] Fig. 2 The utility model is sectional structure schematic drawing.

[0018] In the drawing: 1 support frame, 2 mounting hole, 3 encoder, 4 singlechip, 5 speed reducer, 6 mounting plate, 7 winding drum, 8 torsional spring, 9 fixed rod, 10 rotating plate, 11 compression rod, 12 motor, 13 emergency brake mechanism, 131 threaded rod mounting seat, 132 sliding block, 133 connecting rod, 134 two-way threaded rod, 135 clamping piece, 14 metal turntable, 15 steel cable. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Please refer to Figs. 1-2The embodiment provides a technical scheme: a winch with a limiting control function, which comprises a support frame 1, a mounting hole 2 is arranged on the lower surface of the support frame 1, a single-chip microcomputer 4 is fixedly connected to the rear surface of the upper surface of the support frame 1, the input end of the single-chip microcomputer 4 is electrically connected with the output end of an external power supply, symmetrically distributed mounting plates 6 are fixedly connected to the rear surface of the upper surface of the support frame 1, a transmission shaft is rotatably connected between the two mounting plates 6, a metal rotating disc 14 is fixedly connected to the front surface of the outer surface of the transmission shaft, a winding drum 7 is fixedly connected to the rear end of the outer surface of the transmission shaft, a steel cable 15 is arranged on the outer surface of the winding drum 7, a speed reducer 5 is fixedly connected to the front side of the upper surface of the support frame 1, the rear end of the output shaft of the speed reducer 5 is fixedly connected with the front end of the transmission shaft, the input end of the speed reducer 5 is electrically connected with the output end of the single-chip microcomputer 4, the front surface of the speed reducer 5 is fixedly connected with an encoder 3, the connection mode of the encoder 3 and the output shaft of the speed reducer 5 adopts a method commonly used in the prior art, the encoder 3 is bidirectionally electrically connected with the single-chip microcomputer 4, and the winch with the limiting control function further comprises a fixing rod 9, the fixing rod 9 is fixedly connected between the two mounting plates 6, a torsional spring 8 is sleeved on the middle portion of the outer surface of the fixing rod 9, a rotating plate 10 is rotatably connected to the outer surface of the fixing rod 9, the front end of the torsional spring 8 is in contact with the outer surface of the fixing rod 9, the rear end of the torsional spring 8 is fixedly connected with the inner wall of the rotating plate 10, a pressing rod 11 is fixedly connected to the upper surface of the rotating plate 10, when the winch with the limiting control function is used to carry out heavy object hoisting operation, the winch with the limiting control function is fixedly installed at an operation position, the single-chip microcomputer 4 is controlled, the speed reducer 5 is started, the speed reducer 5 operates, the output shaft of the speed reducer 5 rotates, the transmission shaft is driven to rotate, the winding drum 7 rotates, the movable end of the steel cable 15 is lowered and fixed on goods, at this time, the single-chip microcomputer 4 is controlled, the speed reducer 5 is reversed, the steel cable 15 is collected, the rotating plate 10 is subjected to the downward elastic force of the torsional spring 8, the pressing rod 11 at the upper end of the rotating plate 10 is pressed against the steel cable 15, and the collection of the steel cable 15 is assisted, and the winch with the limiting control function further comprises an emergency brake mechanism 13.

[0021] The emergency brake mechanism 13 comprises a threaded rod mounting seat 131, a sliding block 132, a connecting rod 133, a bidirectional threaded rod 134 and a clamping sheet 135, the threaded rod mounting seat 131 is fixedly connected to the middle part of the upper surface of the support frame 1, the bidirectional threaded rod 134 is rotatably connected in the threaded rod mounting seat 131, the sliding blocks 132 are symmetrically arranged and are threadedly connected to the outer surface of the bidirectional threaded rod 134, the connecting rods 133 are fixedly connected to the upper surfaces of the sliding blocks 132, the clamping sheets 135 are fixedly connected to the sides of the connecting rods 133 close to the middle part of the bidirectional threaded rod 134, the upper surface of the right side of the support frame 1 is fixedly connected with the motor 12, the output shaft of the motor 12 is fixedly connected with the right end of the bidirectional threaded rod 134, and the input end of the motor 12 is electrically connected with the output end of the single-chip microcomputer 4; when the load of the winch is too large to cause the failure of the speed reducer 5, the movable end of the steel cable 15 is rapidly moved to drive the winding drum 7 to rotate rapidly; when the encoder 3 monitors the abnormal rotation of the output shaft of the speed reducer 5, a signal is transmitted to the single-chip microcomputer 4; at this time, the single-chip microcomputer 4 controls the motor 12 to operate, the motor 12 is started to drive the output shaft of the motor 12 to rotate, the bidirectional threaded rod 134 is rotated, the two sliding blocks 132 are moved to the middle part of the bidirectional threaded rod 134, the connecting rods 133 are moved, and the clamping sheets 135 clamp the metal rotating disc, so that the emergency brake of the winding drum 7 is realized.

[0022] The working principle of the winch with the position-limiting control function is as follows: when the winch with the position-limiting control function is used for heavy object hoisting operation, the winch with the position-limiting control function is fixedly installed at a working position, the single-chip microcomputer 4 is controlled, the speed reducer 5 is started, the speed reducer 5 operates, the output shaft of the speed reducer 5 rotates to drive the transmission shaft to rotate, the winding drum 7 is rotated, the movable end of the steel cable 15 is lowered and fixed on the goods, at this time, the single-chip microcomputer 4 is controlled, the speed reducer 5 is reversed, the steel cable 15 is collected, the rotating plate 10 is subjected to the downward elastic force of the torsional spring 8, the pressing rod 11 at the upper end of the rotating plate 10 presses the steel cable 15, the steel cable 15 is collected, the encoder 3 monitors the rotation of the output shaft of the speed reducer 5 in real time, the rotation information of the output shaft of the speed reducer 5 is transmitted to the single-chip microcomputer 4 in real time, and the position-limiting control of the steel cable 15 is realized; when the load of the winch is too large to cause the failure of the speed reducer 5, the movable end of the steel cable 15 is rapidly moved to drive the winding drum 7 to rotate rapidly; when the encoder 3 monitors the abnormal rotation of the output shaft of the speed reducer 5, a signal is transmitted to the single-chip microcomputer 4; at this time, the single-chip microcomputer 4 controls the motor 12 to operate, the motor 12 is started to drive the output shaft of the motor 12 to rotate, the bidirectional threaded rod 134 is rotated, the two sliding blocks 132 are moved to the middle part of the bidirectional threaded rod 134, the connecting rods 133 are moved, and the clamping sheets 135 clamp the metal rotating disc, so that the emergency brake of the winding drum 7 is realized.

[0023] It is worth noting that the encoder 3 disclosed in the above embodiment is selected as 0G77UN1024 encoder, the reducer 5 is selected as UDL0.37 / NMRV50-20 reducer, the single-chip microcomputer 4 is selected as 6ES7222-1HF22-0XA8, and the motor 12 is selected as M1173020 stepping motor. The single-chip microcomputer 4 controls the work of the encoder 3, the reducer 5 and the motor 12, and all of them adopt the method commonly used in the prior art.

[0024] The above only describes the embodiments of the present application, and does not limit the patent range of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application specification and drawings, is also included in the patent protection range of the present application.

Claims

1. A winch with a limit control function, comprising a support frame (1), wherein a mounting hole (2) is provided on the lower surface of the support frame (1), and characterized in that: Also included is an emergency brake mechanism (13); The emergency brake mechanism (13) comprises a threaded rod mounting seat (131), a slider (132), a connecting rod (133), a bidirectional threaded rod (134) and a clamping piece (135), wherein the threaded rod mounting seat (131) is fixedly connected to the middle of the upper surface of the support frame (1), the internal rotation of the threaded rod mounting seat (131) is connected to the bidirectional threaded rod (134), the outer surface of the bidirectional threaded rod (134) is threadedly connected to the sliders (132) which are symmetrically distributed, the upper surface of the sliders (132) is fixedly connected to the connecting rod (133), and the side of the connecting rod (133) close to the middle of the bidirectional threaded rod (134) is fixedly connected to the clamping piece (135).

2. The winch with position limit control function according to claim 1, characterized in that: A single-chip microcomputer (4) is fixedly connected to the rear side of the upper surface of the support frame (1), and the input end of the single-chip microcomputer (4) is electrically connected to the output end of an external power supply.

3. The winch with limit control function according to claim 2, characterized in that: A motor (12) is fixedly connected to the right side of the upper surface of the support frame (1); the output shaft of the motor (12) is fixedly connected to the right end of the bidirectional threaded rod (134); and the input end of the motor (12) is electrically connected to the output end of the single-chip computer (4).

4. The winch with position limit control function according to claim 2, characterized in that: The rear side of the upper surface of the support frame (1) is fixedly connected to symmetrically distributed mounting plates (6), a transmission shaft is rotatably connected between the two mounting plates (6), a metal turntable (14) is fixedly connected to the front side of the outer surface of the transmission shaft, a reel (7) is fixedly connected to the rear end of the outer surface of the transmission shaft, and a steel cable (15) is provided on the outer surface of the reel (7).

5. The winch with position limit control function according to claim 4, characterized in that: A reducer (5) is fixedly connected to the front side of the upper surface of the support frame (1); the rear end of the output shaft of the reducer (5) is fixedly connected to the front end of the transmission shaft; and the input end of the reducer (5) is electrically connected to the output end of the single-chip computer (4).

6. The winch with limit control function according to claim 5, characterized in that: An encoder (3) is fixedly connected to the front surface of the speed reducer (5), and the encoder (3) is bidirectionally electrically connected to the single-chip microcomputer (4).

7. The winch with position limit control function according to claim 1, characterized in that: The invention also includes a fixing rod (9), which is fixedly connected between the two mounting plates (6); a torsion spring (8) is sleeved on the middle part of the outer surface of the fixing rod (9); the outer surface of the fixing rod (9) is rotatably connected to the rotating plate (10); the front end of the torsion spring (8) contacts the outer surface of the fixing rod (9); the rear end of the torsion spring (8) is fixedly connected to the inner wall of the rotating plate (10); and the upper surface of the rotating plate (10) is fixedly connected to a pressing rod (11).

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