Energy-saving type small-tooth-difference planetary winch

Abstract

The utility model discloses an energy-saving type small-tooth-difference planetary winch, and relates to the technical field of winches. The device comprises a mounting base, a driving motor is fixedly connected to the top of the mounting base, a gearbox is fixedly connected to the output end of the driving motor, a winding drum is fixedly connected to one side of the gearbox, a locking assembly is fixedly connected to the top of the mounting base, and the locking assembly comprises a locking frame fixedly connected to the top of the mounting base. The cable bearing capacity is monitored in real time through the detection assembly, when the load exceeds a set threshold value, the pressure plate rapidly makes contact with the sensor and triggers an electric signal, the locking assembly is meshed under millisecond-level response, a bottom roller is forcibly locked, impact force is prevented from being transmitted to a gearbox and a motor, and compared with traditional mechanical friction braking or manual intervention, the cable bearing capacity is greatly improved. Mechanical faults such as gear tooth breakage and bearing damage are effectively avoided, the safety of equipment is remarkably improved, the service life of the equipment is remarkably prolonged, and the device is particularly suitable for severe working conditions of sudden overload in hoisting operation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hoist technical field, especially, relate to a kind of energy-saving few-tooth difference planetary hoist. BACKGROUND

[0002] Energy-saving few-tooth difference planetary hoist is a kind of power transmission device based on few-tooth difference planetary transmission principle (such as K-H-V type), and high reduction ratio, large torque output are realized by the few-tooth difference meshing of planetary gear and internal gear, while combining lightweight structure, efficient lubrication and energy optimization design, reduce operating energy consumption.

[0003] Traditional hoist has the following significant defects: existing equipment is mostly dependent on mechanical friction plate or manual intervention to realize braking, when cable suddenly overloads, cable cannot be locked quickly, leading to impact force being directly transmitted to gearbox and driving motor, causing gear tooth breakage, bearing damage or motor burnout, some hoists use fixed threshold mechanical limiters, and braking is triggered only when cable tension reaches destructive threshold, and overload risk cannot be prevented actively through real-time detection.

[0004] Therefore, we provide an energy-saving few-tooth difference planetary hoist to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an energy-saving few-tooth difference planetary hoist, which solves the problem of existing hoist being mostly dependent on mechanical friction plate or manual intervention to realize braking and cable being unable to be locked quickly when cable suddenly overloads through the cooperation of locking assembly and detection assembly.

[0006] To solve the above technical problems, the utility model is implemented through the following technical solutions.

[0007] The utility model is an energy-saving few-tooth difference planetary hoist, which comprises a mounting base, a driving motor fixedly connected to the top of the mounting base, a gearbox fixedly connected to the output end of the driving motor, a winding drum fixedly connected to one side of the gearbox, a locking assembly fixedly connected to the top of the mounting base, a locking frame fixedly connected to the top of the mounting base, a bottom roller arranged inside the locking frame, and a top roller arranged on the top of the bottom roller, a detection assembly arranged on one side of the locking frame, a detection plate fixedly connected to one side of the locking frame, a pressure sensor fixedly connected to the inside of the detection plate, a lower pressing plate arranged inside the detection plate, a pressure plate fixedly connected to the bottom of the lower pressing plate, and a rope passing roller arranged on one side of the locking frame.

[0008] The utility model further sets up, first hydraulic cylinder is fixedly connected with the top of locking frame, the fixed plate is fixedly connected with the output end of first hydraulic cylinder, the top roller is fixedly connected with one side of fixed plate.

[0009] The utility model further sets up, second hydraulic cylinder is fixedly connected with one side of locking frame, the locking gear plate is fixedly connected with the output end of second hydraulic cylinder, the gear is engaged with the top of locking gear plate, the gear is fixedly connected with the surface of bottom roller.

[0010] The utility model further sets up, the reinforcing through -hole is seted up in the inside of locking gear plate, the reinforcing rod is seted up in the inside of reinforcing through -hole, the anti -drop board is fixedly connected with one end of reinforcing rod.

[0011] The utility model further sets up, the detection slot is seted up in the inside of detection board, the pressure sensor, the lower pressing plate and pressure plate all are located in the inside of detection slot.

[0012] The utility model further sets up, the vertical rod is fixedly connected with the top of lower pressing plate, the connecting plate is fixedly connected with the top of vertical rod, the rope roller is movably connected with connecting plate through bearing, the movable through -hole that is compatible with vertical rod is seted up in the inside of detection board.

[0013] The utility model further sets up, the spring is fixedly connected with the bottom of lower pressing plate, the bottom of spring is fixedly connected with detection board.

[0014] The utility model has the advantages of the following.

[0015] 1. The utility model discloses a detection assembly in real time monitoring cable bearing capacity, when the load exceeds the set threshold, the pressure plate contacts the sensor and triggers the electric signal, the locking assembly engages under the response of millisecond, and the bottom roller is forcibly locked, so that the impact force is blocked to the transmission of gearbox and motor, compared with traditional mechanical friction brake or manual intervention, mechanical failure such as gear tooth breakage and bearing damage is avoided, and the equipment safety and service life are improved, and the utility model is especially suitable for the harsh working condition of sudden overload in hoisting operation.

[0016] 2. The utility model discloses a locking assembly that is activated only when overloaded, and the hydraulic system is in standby state under normal circumstances, so that energy consumption is reduced, and the detection assembly and locking frame adopt modular design, realize function integration under the premise of not increasing the volume, adapt to space limited scenes such as mine and ship, and the buffer-linkage mechanism of spring and vertical rod reduces the probability of sensor false triggering and ensures the stability of rope roller, and the overall structure considers light weight and high reliability.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. ACCURACY OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed for the description of the embodiments will be briefly introduced.

[0019] Figure 1 It is a perspective view of an energy-saving planetary hoist with few tooth difference.

[0020] Figure 2 It is a perspective view of the bottom roller and the top roller in an energy-saving planetary hoist with few tooth difference.

[0021] Figure 3 It is an exploded view of the locking assembly in an energy-saving planetary hoist with few tooth difference.

[0022] Figure 4 It is a perspective view of the detection plate and the rope passing roller in an energy-saving planetary hoist with few tooth difference.

[0023] Figure 5 It is a sectional view of the detection plate in an energy-saving planetary hoist with few tooth difference.

[0024] In the drawings: 1, mounting base; 2, driving motor; 3, gearbox; 4, winding drum; 5, locking frame; 6, bottom roller; 7, top roller; 8, detection plate; 9, pressure sensor; 10, lower pressing plate; 11, pressure plate; 12, rope passing roller; 13, first hydraulic cylinder; 14, second hydraulic cylinder; 15, locking tooth plate; 16, gear; 17, reinforcing rod; 18, vertical rod; 19, spring. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be described below in combination with the drawings in the embodiments of the present application, and the described embodiments are only some of the embodiments of the present application, but not all the embodiments.

[0026] Embodiment 1

[0027] Please refer to Figures 1-5The utility model provides a kind of energy-saving type few tooth difference planetary hoist, including installation baseplate 1, installation baseplate 1 top is fixedly connected with driving motor 2, driving motor 2 output end is fixedly connected with gearbox 3, gearbox 3 one side is fixedly connected with winding drum 4, installation baseplate 1 top is fixedly connected with locking assembly, locking assembly includes the locking frame 5 of fixed connection in the top of installation baseplate 1, the bottom roller 6 being arranged in the inside of locking frame 5, and the top roller 7 being arranged in the top of bottom roller 6, by the setting of locking assembly, when cable overload, fast locking drive system, block impact force transmission to gearbox 3 and motor, prevent equipment damage, locking frame 5 one side is provided with detection assembly, detection assembly includes the detection plate 8 of fixed connection in the one side of locking frame 5, the pressure sensor 9 of fixed connection in the inside of detection plate 8, pressure sensor 9 is electrically connected with external controller, when detecting that pressure exceeds threshold value, controller starts second hydraulic cylinder 14, the lower pressing plate 10 being arranged in the inside of detection plate 8, the pressure plate 11 of fixed connection in the bottom of lower pressing plate 10, and the rope roller 12 being arranged in the one side of locking frame 5, by the setting of detection assembly, cable bearing capacity is monitored in real time, triggers locking action, realizes overload early warning and active protection.

[0028] Example 2

[0029] Please refer to Figures 1-5On the basis of embodiment 1, the first hydraulic cylinder 13 is fixedly connected to the top of the locking frame 5, the output end of the first hydraulic cylinder 13 is fixedly connected to a fixed plate, the top roller 7 is fixedly connected to one side of the fixed plate, the first hydraulic cylinder 13 is arranged to push the top roller 7 to move up and down, the second hydraulic cylinder 14 is fixedly connected to one side of the locking frame 5, the output end of the second hydraulic cylinder 14 is fixedly connected to the locking tooth plate 15, the top of the locking tooth plate 15 is engaged with the gear 16, the gear 16 is fixedly connected to the surface of the bottom roller 6, the second hydraulic cylinder 14 is arranged to push the locking tooth plate 15 to move, the locking tooth plate 15 is arranged to engage with the gear 16 and lock the gear 16 to prevent the gear 16 from continuing to rotate, the reinforcing hole is formed in the locking tooth plate 15, the reinforcing rod 17 is arranged in the reinforcing hole, the anti-dropping plate is fixedly connected to one end of the reinforcing rod 17, the bottom roller 6 is movably connected to the locking frame 5 through a bearing, the gear 16 is fixedly connected to the surface of the bottom roller 6, the other end of the reinforcing rod 17 is fixedly connected to the locking frame 5, the reinforcing rod 17 is arranged to support the locking tooth plate 15, the detection groove is formed in the detection plate 8, the pressure sensor 9, the lower pressing plate 10 and the pressure plate 11 are arranged in the detection groove, the vertical rod 18 is fixedly connected to the top of the lower pressing plate 10, the connecting plate is fixedly connected to the top of the vertical rod 18, the rope passing roller 12 is movably connected to the connecting plate through a bearing, the movable hole matched with the vertical rod 18 is formed in the detection plate 8, the vertical rod 18 is arranged to support the rope passing roller 12, the spring 19 is fixedly connected to the bottom of the lower pressing plate 10, the bottom of the spring 19 is fixedly connected to the detection plate 8, the spring 19 is axially telescopic along the vertical rod 18 to ensure that the lower pressing plate 10 moves vertically, the spring 19 is arranged to support the lower pressing plate 10, and when the rope passing roller 12 is subjected to an excessive impact force, the spring 19 is compressed downward to enable the pressure plate 11 to be in contact with the pressure sensor 9 downward.

[0030] The working principle of the utility model is as follows: the cable on the winding drum 4 is sequentially threaded through the bottom roller 6 and the rope passing roller 12, after the cargo is hung at the bottom of the cable, in the winding and unwinding process of the winding drum 4, the cable generates pressure on the rope passing roller 12, when the bearing capacity is within the design range, the lower pressing plate 10 is compressed downward to the spring 19, but the pressure plate 11 does not continuously contact the pressure sensor 9, if the bearing capacity exceeds the design range, the pressure plate 11 continuously extrudes the pressure sensor 9, and the value of the pressure sensor 9 exceeding the preset value of the system triggers the locking assembly.

[0031] At this time, the first hydraulic cylinder 13 and the second hydraulic cylinder 14 are started, the first hydraulic cylinder 13 drives the top roller 7 to move downwards, the top roller 7 is in contact with the bottom roller 6, the second hydraulic cylinder 14 drives the locking gear plate 15 to move towards the gear 16, the locking gear plate 15 is engaged with the gear 16, the gear 16 is fixed, the gear 16 is prevented from continuing to rotate, after the gear 16 is fixed, the bottom roller 6 cannot continue to rotate, at this time, the top roller 7 and the bottom roller 6 cooperate to lock and fix the cable, and the damage of the winch caused by the excessive impact force is avoided.

[0032] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, the described embodiments can be modified in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. An energy-saving planetary winch with low tooth difference, comprising a mounting base (1), characterized in that: The top of the mounting base (1) is fixedly connected to a drive motor (2), the output end of the drive motor (2) is fixedly connected to a gearbox (3), and a drum (4) is fixedly connected to one side of the gearbox (3). The mounting base (1) is fixedly connected to a locking assembly. The locking assembly includes a locking frame (5) fixedly connected to the top of the mounting base (1), a bottom roller (6) disposed inside the locking frame (5), and a top roller (7) disposed on the top of the bottom roller (6). A detection assembly is provided on one side of the locking frame (5). The detection assembly includes a detection plate (8) fixedly connected to one side of the locking frame (5), a pressure sensor (9) fixedly connected inside the detection plate (8), a lower pressure plate (10) provided inside the detection plate (8), a pressure plate (11) fixedly connected to the bottom of the lower pressure plate (10), and a rope roller (12) provided on one side of the locking frame (5).

2. The energy-saving planetary winch with low tooth difference according to claim 1, characterized in that: The locking frame (5) is fixedly connected to the top of a first hydraulic cylinder (13), and the output end of the first hydraulic cylinder (13) is fixedly connected to a fixed plate. The top roller (7) is fixedly connected to one side of the fixed plate.

3. The energy-saving planetary winch with low tooth difference according to claim 1, characterized in that: A second hydraulic cylinder (14) is fixedly connected to one side of the locking frame (5). A locking tooth plate (15) is fixedly connected to the output end of the second hydraulic cylinder (14). A gear (16) is meshed on the top of the locking tooth plate (15). The gear (16) is fixedly connected to the surface of the bottom roller (6).

4. The energy-saving planetary winch with low tooth difference according to claim 3, characterized in that: The locking tooth plate (15) has an internal reinforcing through hole, and a reinforcing rod (17) is provided inside the reinforcing through hole. One end of the reinforcing rod (17) is fixedly connected to an anti-detachment plate.

5. The energy-saving planetary winch with low tooth difference according to claim 1, characterized in that: The detection plate (8) has a detection slot inside, and the pressure sensor (9), the lower pressure plate (10) and the pressure plate (11) are all located inside the detection slot.

6. The energy-saving planetary winch with low tooth difference according to claim 1, characterized in that: The top of the lower pressure plate (10) is fixedly connected to a vertical rod (18), and the top of the vertical rod (18) is fixedly connected to a connecting plate. The rope roller (12) is movably connected to the connecting plate through a bearing. The detection plate (8) has an movable through hole that matches the vertical rod (18).

7. The energy-saving planetary winch with low tooth difference according to claim 1, characterized in that: A spring (19) is fixedly connected to the bottom of the lower pressure plate (10), and the bottom of the spring (19) is fixedly connected to the detection plate (8).

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