CN115303970A - Hydraulic winch - Google Patents
Hydraulic winch Download PDFInfo
- Publication number
- CN115303970A CN115303970A CN202211115838.6A CN202211115838A CN115303970A CN 115303970 A CN115303970 A CN 115303970A CN 202211115838 A CN202211115838 A CN 202211115838A CN 115303970 A CN115303970 A CN 115303970A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- hydraulic motor
- winding drum
- brake
- planet carrier
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/08—Driving gear incorporating fluid motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
- B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a hydraulic winch, which comprises a rack and a winding drum, wherein the winding drum is rotatably connected with the rack, a planetary reducer, a hydraulic motor and a brake unit are arranged in the winding drum, the output end of the hydraulic motor is in transmission connection with the planetary reducer, the planetary reducer is connected with the winding drum so as to drive the winding drum to rotate and work, the hydraulic motor, the planetary reducer and the brake unit are all integrated in the winding drum, the output shaft of a planet carrier is of a hollow structure, and the hydraulic motor is arranged in the hollow structure of the output shaft of the planet carrier, so that the hydraulic winch is compact in structure, and the volume of the hydraulic winch is reduced. Meanwhile, the high-speed end brake and the low-speed end brake are normally closed self-locking brakes, the hydraulic motor is in a braking state when not working, the high-speed end brake and the low-speed end brake are automatically locked when the hydraulic motor stops working, the winding drum stops rotating, and when the planetary reducer or the hydraulic motor is damaged, the low-speed end brake directly brakes the winding drum, so that the safety and reliability of the device are improved.
Description
Technical Field
The invention relates to the technical field of hoisting machinery and peripheral supporting facilities thereof, in particular to a hydraulic winch.
Background
Most of hydraulic winches in the prior art are low in integration level and large in size, and when parts such as a motor or a speed reducer are damaged, heavy objects lifted by the winches freely fall due to damage of the winches, so that accidents are caused, and the safety of the winches is poor and the winches are not suitable for manned operation.
Chinese patent document CN102718161A discloses a hydraulic winch, which includes a frame, a winding drum, a hydraulic motor, a hydraulic brake, a planetary gear reducer and a hydraulic clutch, all of which are disposed in the winding drum; the hydraulic clutch comprises an outer cylinder, a clutch friction plate and a clutch oil cylinder; a supporting shaft is fixed on the frame, pistons of the outer cylinder and the clutch oil cylinder are fixed on the supporting shaft through bearings respectively, and the pistons are in transmission connection with the output end of a planet carrier of the planetary gear reducer. The outer cylinder and the piston are fixed on the supporting shaft, so that the outer cylinder and the piston are easy to have higher coaxiality, and the dynamic friction plate and the fixed friction plate which are respectively arranged on the outer cylinder and the piston also have higher parallelism; the transmission efficiency, the working reliability and the service life can be improved, and the whole structure is simplified, and the manufacturability of processing and assembling is better. Chinese patent publication No. CN203411268U discloses a built-in hydraulic winch, which comprises a hydraulic motor, a valve set, a support base, a bearing seat, a brake, a planetary reducer, and a reel, wherein the hydraulic motor is fixed on the support base, an output shaft of the hydraulic motor is matched with a brake shaft sleeve of the brake, the brake shaft sleeve is connected with a sun gear of the planetary reducer, and is engaged with the reel mounted on the bearing seat after being decelerated by the planetary gear. The winch has the advantages of compact structure, compact combination of the planetary speed reducing mechanism, the braking mechanism and the hydraulic motor, product volume reduction, high reliability and high driving power. The planetary reducer and the brake are filled with hydraulic oil, so that abrasion is reduced. However, the hydraulic motor is arranged outside one end of the winch drum, so that the axial length of the winch is long, the winch is large in size, the installation of the winch is affected by the external hydraulic motor, and the use performance of the winch is reduced.
Therefore, how to change the current situation that the winch is large in volume and poor in service performance due to the fact that the driver is externally arranged in the prior art becomes a problem to be solved urgently by the technical staff in the field.
Disclosure of Invention
The invention aims to provide a hydraulic winch, which solves the problems in the prior art, has a compact structure and improves the working reliability of the hydraulic winch.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a hydraulic winch, which comprises a rack and a winding drum, wherein the winding drum is rotatably connected with the rack, and the winding drum is internally provided with:
the planetary reducer comprises an inner gear ring and a planet carrier output shaft, the inner gear ring is rotatably connected with the planet carrier output shaft, the inner gear ring is connected with the winding drum, and the planet carrier output shaft is of a hollow structure;
the output end of the hydraulic motor is in transmission connection with the inner gear ring, and the hydraulic motor is arranged inside the output shaft of the planet carrier;
the brake unit comprises a high-speed end brake and a low-speed end brake, the high-speed end brake is connected with the hydraulic motor, the low-speed end brake is arranged between the inner gear ring and the output shaft of the planet carrier, and the high-speed end brake and the low-speed end brake are both normally closed self-locking brakes.
Preferably, the planetary reducer comprises a primary sun gear and a primary planet gear which are meshed with each other, the output end of the hydraulic motor is connected with the primary sun gear through an intermediate shaft, and the primary sun gear is meshed with the inner gear ring; the final planet carrier of the planetary reducer is located between the first-stage sun gear and the hydraulic motor.
Preferably, the high-speed end brake includes a first dynamic friction plate and a first fixed friction plate, the hydraulic motor includes a rotor and a motor housing, the first dynamic friction plate is connected with the rotor, the first fixed friction plate is connected with the motor housing, the motor housing is provided with an inner piston between the rotors, the inner piston can compress the first dynamic friction plate and the first fixed friction plate, a first oil cavity is arranged between the inner piston and the motor housing, and a first pressure spring is arranged between the motor housing and the inner piston.
Preferably, the low-speed end brake includes a second dynamic friction plate and a second fixed friction plate, the second fixed friction plate is connected with the planet carrier output shaft, the second dynamic friction plate is connected with the inner gear ring, a pressure plate is arranged between the planet carrier output shaft and the frame, the pressure plate is connected with the frame, an outer piston is arranged between the pressure plate and the inner gear ring, the outer piston can press the second dynamic friction plate and the second fixed friction plate, a second oil cavity is arranged between the outer piston and the planet carrier output shaft, and a second pressure spring is arranged between the pressure plate and the outer piston.
Preferably, the hydraulic motor is a swash plate plunger type motor, and the hydraulic motor is connected with a motor brake and a hydraulic valve bank.
Preferably, one end of the planetary reducer, which is far away from the hydraulic motor, is provided with a sealing cover, and the sealing cover is connected with the inner gear ring.
Preferably, a first fixing ring and a second fixing ring are arranged on the inner wall of the winding drum, the inner gear ring is connected with the winding drum through the first fixing ring, the second fixing ring is connected with a supporting plate, the supporting plate is rotatably connected with the rack, and the supporting plate is arranged on one side, far away from the hydraulic motor, of the planetary reducer.
Preferably, the rack is provided with a supporting seat, a supporting shaft is arranged between the supporting seat and the supporting plate, one end of the supporting shaft is connected with the supporting plate, and the other end of the supporting shaft is rotatably connected with the supporting seat.
Preferably, two sets of bearings are arranged between the inner gear ring and the output shaft of the planet carrier.
Preferably, the drum has a cable trough and a cable fixing assembly on the outside.
Compared with the prior art, the invention has the following technical effects: the hydraulic winch comprises a rack and a winding drum, wherein the winding drum is rotatably connected with the rack, a planetary reducer, a hydraulic motor and a brake unit are arranged in the winding drum, the planetary reducer comprises an inner gear ring and a planet carrier output shaft, the inner gear ring is rotatably connected with the planet carrier output shaft, the inner gear ring is connected with the winding drum, and the planet carrier output shaft is of a hollow structure; the output end of the hydraulic motor is in transmission connection with the inner gear ring, and the hydraulic motor is arranged inside the output shaft of the planet carrier; the brake unit comprises a high-speed end brake and a low-speed end brake, the high-speed end brake is connected with the hydraulic motor, the low-speed end brake is arranged between the inner gear ring and the output shaft of the planet carrier, and the high-speed end brake and the low-speed end brake are both normally closed self-locking brakes.
According to the hydraulic winch, the output end of the hydraulic motor is in transmission connection with the planetary reducer, the planetary reducer is connected with the winding drum so as to drive the winding drum to rotate and work, the hydraulic motor, the planetary reducer and the brake unit are all integrated in the winding drum, the output shaft of the planet carrier is of a hollow structure, and the hydraulic motor is arranged in the hollow structure of the output shaft of the planet carrier, so that the hydraulic winch is compact in structure, and the size of the hydraulic winch is reduced. Meanwhile, the hydraulic winch is provided with a brake unit, the high-speed end brake and the low-speed end brake are normally closed self-locking brakes, the hydraulic motor is in a braking state when not working, the hydraulic motor stops working, the high-speed end brake and the low-speed end brake are automatically locked, the winding drum stops rotating, when the planetary reducer or the hydraulic motor is damaged, the low-speed end brake directly brakes the winding drum, the problem that the weight falls freely due to damage of the winch to cause accidents is avoided, the safety and reliability of the device are improved, and the service performance of the hydraulic winch is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a cutaway configuration of the hydraulic winch of the present invention;
the hydraulic brake device comprises a frame 1, a winding drum 2, a hydraulic motor 3, a planetary reducer 4, an inner gear ring 5, a planet carrier output shaft 6, a high-speed end brake 7, a low-speed end brake 8, a first-stage sun gear 9, a first-stage planet gear 10, an intermediate shaft 11, a rotor 12, a motor shell 13, an inner piston 14, a first pressure spring 15, a pressure plate 16, an outer piston 17, a second pressure spring 18, a motor brake 19, a hydraulic valve bank 20, a seal cover 21, a first fixing ring 22, a second fixing ring 23, a support seat 24, a support shaft 25, a bearing 26, a steel cable fixing component 27 and a support plate 28.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention aims to provide a hydraulic winch, which solves the problems in the prior art, has a compact structure and improves the working reliability of the hydraulic winch.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, fig. 1 is a schematic sectional view of a hydraulic winch according to the present invention.
The invention provides a hydraulic winch, which comprises a rack 1 and a winding drum 2, wherein the winding drum 2 is rotatably connected with the rack 1, a planetary reducer 4, a hydraulic motor 3 and a brake unit are arranged in the winding drum 2, the planetary reducer 4 comprises an inner gear ring 5 and a planet carrier output shaft 6, the inner gear ring 5 is rotatably connected with the planet carrier output shaft 6, the inner gear ring 5 is connected with the winding drum 2, and the planet carrier output shaft 6 is of a hollow structure; the output end of the hydraulic motor 3 is in transmission connection with the inner gear ring 5, and the hydraulic motor 3 is arranged inside the output shaft 6 of the planet carrier; the brake unit comprises a high-speed end brake 7 and a low-speed end brake 8, the high-speed end brake 7 is connected with the hydraulic motor 3, the low-speed end brake 8 is arranged between the inner gear ring 5 and the planet carrier output shaft 6, and the high-speed end brake 7 and the low-speed end brake 8 are both normally closed self-locking brakes.
According to the hydraulic winch, the output end of the hydraulic motor 3 is in transmission connection with the planetary reducer 4, the planetary reducer 4 is connected with the winding drum 2, so that the winding drum 2 is driven to rotate to work, the hydraulic motor 3, the planetary reducer 4 and the brake unit are all integrated in the winding drum 2, the planet carrier output shaft 6 is of a hollow structure, the hydraulic motor 3 is arranged in the hollow structure of the planet carrier output shaft 6, the hydraulic winch is compact in structure, and the size of the hydraulic winch is reduced. Meanwhile, the hydraulic winch is provided with a brake unit, the high-speed end brake 7 and the low-speed end brake 8 are normally closed self-locking brakes, the hydraulic motor 3 is in a braking state when not working, when the hydraulic motor 3 stops working, the high-speed end brake 7 and the low-speed end brake 8 are both automatically locked, the winding drum 2 stops rotating, when the planetary reducer 4 or the hydraulic motor 3 is damaged, the low-speed end brake 8 directly brakes the winding drum 2, the problem that the heavy object falls freely due to the damage of the winch to cause accidents is avoided, the safety and the reliability of the device are improved, and the service performance of the hydraulic winch is improved.
The planetary reducer 4 comprises a primary sun gear 9 and a primary planet gear 10 which are meshed with each other, the output end of the hydraulic motor 3 is connected with the primary sun gear 9 through an intermediate shaft 11, and the primary sun gear 9 is meshed with the inner gear ring 5; the final carrier of the planetary reduction gear 4 is located between the first sun gear 9 and the hydraulic motor 3. In this embodiment, the planetary reduction gear 4 is a three-stage planetary reduction gear, the internal transmission gears of the planetary reduction gear 4 are all in a floating connection structure, the planetary carrier output shaft 6 is in floating connection with the last-stage planetary carrier, the intermediate shaft 11 passes through the center holes of the last-stage (three-stage) sun gear and the second-stage sun gear of the planetary reduction gear 4 to be connected with the first-stage sun gear 9, the intermediate shaft 11 is connected with the first-stage sun gear 9 by a spline, the last-stage planetary carrier of the planetary reduction gear 4 is located between the first-stage sun gear 9 and the hydraulic motor 3, and the intermediate shaft 11 is connected with the output end of the hydraulic motor 3 by a spline.
Specifically, the high-speed end brake 7 comprises a first dynamic friction plate and a first fixed friction plate, the hydraulic motor 3 comprises a rotor 12 and a motor shell 13, the first dynamic friction plate is connected with the rotor 12, the first fixed friction plate is connected with the motor shell 13, an inner piston 14 is arranged between the motor shell 13 and the rotor 12, the inner piston 14 can compress the first dynamic friction plate and the first fixed friction plate, a first oil cavity is arranged between the inner piston 14 and the motor shell 13, and a first pressure spring 15 is arranged between the motor shell 13 and the inner piston 14. When the oil inlet pressure of the first oil cavity is increased, the hydraulic oil pushes the inner piston 14 to move towards one side of the hydraulic motor 3 far away from the planetary reducer 4 by overcoming the acting force of the first pressure spring 15, the first movable friction plate is separated from the first fixed friction plate, and the high-speed brake is separated. When the first oil cavity is decompressed, the inner piston 14 moves towards one side of the planetary reducer 4 under the action of the restoration of the deformation of the first pressure spring 15, the first movable friction plate is attached to the first fixed friction plate, the high-speed end brake 7 brakes, and the rotor 12 is locked. The high-speed end brake 7 has larger braking force and is controlled by hydraulic oil, and an old brake belt type brake cannot realize automatic opening and closing due to high opening pressure and large stroke, so that the high-speed end brake 7 does not have an automatic emergency braking function when elements in a system break down, and has the automatic emergency braking function.
Correspondingly, the low-speed end brake 8 comprises a second movable friction plate and a second fixed friction plate, the second fixed friction plate is connected with the planet carrier output shaft 6, the second movable friction plate is connected with the inner gear ring 5, a pressure plate 16 is arranged between the planet carrier output shaft 6 and the frame 1, the pressure plate 16 is connected with the frame 1, an outer piston 17 is arranged between the pressure plate 16 and the inner gear ring 5, the outer piston 17 can tightly press the second movable friction plate and the second fixed friction plate, a second oil cavity is formed between the outer piston 17 and the planet carrier output shaft 6, and a second pressure spring 18 is arranged between the pressure plate 16 and the outer piston 17. When the oil inlet pressure of the second oil cavity of the low-speed end brake 8 is increased, the hydraulic oil pushes the outer piston 17 to overcome the elasticity of the second pressure spring 18 and move to one side of the hydraulic motor 3, the second movable friction plate is separated from the second fixed friction plate, and the low-speed end brake 8 is separated; when the second oil cavity is decompressed, the outer piston 17 moves towards one side of the planetary reducer 4 under the action force of the second pressure spring 18 restoring deformation, the second movable friction plate is attached to the second fixed friction plate, and the low-speed end brake 8 is closed. The low-speed end brake 8 can realize that the dynamic load braking force is larger than 1.1 times of rated load force, and the static load braking force is larger than 1.5 times of rated load force, and meets the technical requirements of LR specifications.
In this embodiment, the hydraulic motor 3 is a swash plate plunger type motor, and the motor brake 19 and the hydraulic valve group 20 are connected to the hydraulic motor 3, and in other embodiments of the present invention, the type of the motor can be selected by the hydraulic motor 3 according to actual conditions.
More specifically, a sealing cover 21 is arranged at one end of the planetary reducer 4 far away from the hydraulic motor 3, the sealing cover 21 is connected with the inner gear ring 5, the primary inner gear ring of the planetary reducer 4 is arranged on the inner wall of the sealing cover 21, and the primary planet gears 10 of the planetary reducer 4 are meshed with the primary inner gear ring, so that the space is fully utilized.
Further, be provided with the solid fixed ring of first fixed ring 22 and the solid fixed ring of second 23 on the inner wall of reel 2, ring gear 5 utilizes the solid fixed ring of first 22 to link to each other with reel 2, it provides the installation basis to link to each other with reel 2 for ring gear 5, the solid fixed ring of second 23 is connected with backup pad 28, backup pad 28 rotationally links to each other with frame 1, backup pad 28 sets up in the one side that hydraulic motor 3 was kept away from to planetary reducer 4, backup pad 28 makes things convenient for reel 2 to rotationally link to each other with frame 1, make things convenient for frame 1 to support reel 2, the structural integrity of device has been improved, the stability of reel 2 and the inside spare part of reel 2 has been improved. It should be further noted that the inner gear ring 5 is in bolted connection with the first fixing ring 22, and the second fixing ring 23 is in bolted connection with the support plate 28, so that the connection and fastening are realized, the dismounting is convenient, and the maintenance convenience of the device is improved.
In other embodiments of the present invention, the supporting base 24 is disposed on the frame 1, the supporting shaft 25 is disposed between the supporting base 24 and the supporting plate 28, one end of the supporting shaft 25 is connected to the supporting plate 28, the other end of the supporting shaft 25 is rotatably connected to the supporting base 24, and the supporting base 24 facilitates the rotating connection of the supporting shaft 25 to the frame 1. It should be noted that, in the hydraulic winch of the present invention, each component is located in the winding drum 2 and close to one end of the planetary reducer 4, the support block plugs the rack 1 and close to one end of the hydraulic motor 3, the hydraulic valve set 20 does not protrude out of the rack 1, and the hydraulic winch is integrally hidden in the rack 1, so that the problems that the installation of the hydraulic winch is affected and the use performance of the hydraulic winch is reduced due to the exposed components are avoided.
In addition, the bearings 26 are arranged between the inner gear ring 5 and the planet carrier output shaft 6, the number of the bearings 26 is two, and in practical application, the number of the bearings 26 can be determined according to the axial length of the relative rotating part of the inner gear ring 5 and the planet carrier output shaft 6.
Furthermore, the drum 2 has a cable groove and a cable fixing module 27 outside thereof for facilitating the winding of the cable on the drum 2, the cable fixing modules 27 can be arranged in three groups, two groups of cable fixing modules 27 are arranged at two ends of the sidewall of the drum 2, the other group of cable fixing modules 27 is arranged between the two groups of cable fixing modules 27, or a plurality of groups of cable fixing modules 27 are arranged on the two groups of cable fixing modules 27, and in practical application, the cable fixing modules can be specifically set according to the cable and the device specification.
According to the hydraulic winch, the hydraulic motor 3, the planetary reducer 4 and the brake unit are integrated in the winding drum 2, the planet carrier output shaft 6 is of a hollow structure, the hydraulic motor 3 is arranged in the hollow structure of the planet carrier output shaft 6, the structural integration level of the hydraulic winch is improved, and the volume of the hydraulic winch is reduced; when the hydraulic winch works, the high-speed end brake 7 and the low-speed end brake 8 are opened under the pressure action of hydraulic oil, the hydraulic motor 3 drives the planetary reducer 4 to drive the inner gear ring 5 to rotate, and then drives the winding drum 2 connected with the inner gear ring 5 to rotate, when the hydraulic motor 3 stops, the high-speed end brake 7 and the low-speed end brake 8 are both automatically locked, the winding drum 2 stops rotating, when the planetary reducer 4 or the hydraulic motor 3 is damaged, the low-speed end brake 8 directly brakes the winding drum 2, the problem that the heavy object falls freely due to the damage of the winch to cause accidents is avoided, the safety and reliability of the device are improved, and the service performance of the hydraulic winch is improved.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the foregoing, the description is not to be taken in a limiting sense.
Claims (10)
1. The hydraulic winch is characterized by comprising a rack and a winding drum, wherein the winding drum is rotatably connected with the rack, and is internally provided with:
the planetary reducer comprises an inner gear ring and a planet carrier output shaft, the inner gear ring is rotatably connected with the planet carrier output shaft, the inner gear ring is connected with the winding drum, and the planet carrier output shaft is of a hollow structure;
the output end of the hydraulic motor is in transmission connection with the inner gear ring, and the hydraulic motor is arranged inside the output shaft of the planet carrier;
the brake unit comprises a high-speed end brake and a low-speed end brake, the high-speed end brake is connected with the hydraulic motor, the low-speed end brake is arranged between the inner gear ring and the output shaft of the planet carrier, and the high-speed end brake and the low-speed end brake are both normally closed self-locking brakes.
2. The hydraulic winch of claim 1, wherein: the planetary speed reducer comprises a primary sun gear and a primary planet gear which are meshed with each other, the output end of the hydraulic motor is connected with the primary sun gear by using an intermediate shaft, and the primary sun gear is meshed with the inner gear ring; and a final planet carrier of the planetary speed reducer is positioned between the first-stage sun gear and the hydraulic motor.
3. The hydraulic winch of claim 1, wherein: the high-speed end brake comprises a first dynamic friction plate and a first fixed friction plate, the hydraulic motor comprises a rotor and a motor shell, the first dynamic friction plate is connected with the rotor, the first fixed friction plate is connected with the motor shell, an inner piston is arranged between the motor shell and the rotor, the inner piston can compress the first dynamic friction plate and the first fixed friction plate, a first oil cavity is formed between the inner piston and the motor shell, and a first pressure spring is arranged between the motor shell and the inner piston.
4. The hydraulic winch of claim 3, wherein: the low-speed end brake comprises a second movable friction plate and a second fixed friction plate, the second fixed friction plate is connected with the planet carrier output shaft, the second movable friction plate is connected with the inner gear ring, a pressing plate is arranged between the planet carrier output shaft and the rack, the pressing plate is connected with the rack, an outer piston is arranged between the pressing plate and the inner gear ring, the outer piston can press the second movable friction plate and the second fixed friction plate, a second oil cavity is formed between the outer piston and the planet carrier output shaft, and a second pressure spring is arranged between the pressing plate and the outer piston.
5. The hydraulic winch of claim 1, wherein: the hydraulic motor is a swash plate plunger type motor and is connected with a motor brake and a hydraulic valve group.
6. The hydraulic winch of claim 1, wherein: and one end of the planetary reducer, which is far away from the hydraulic motor, is provided with a sealing cover, and the sealing cover is connected with the inner gear ring.
7. The hydraulic winch of claim 1, wherein: the inner wall of the winding drum is provided with a first fixing ring and a second fixing ring, the inner gear ring is connected with the winding drum through the first fixing ring, the second fixing ring is connected with a supporting plate, the supporting plate is rotatably connected with the rack, and the supporting plate is arranged on one side, far away from the hydraulic motor, of the planetary reducer.
8. The hydraulic winch of claim 7, wherein: the supporting device is characterized in that a supporting seat is arranged on the rack, a supporting shaft is arranged between the supporting seat and the supporting plate, one end of the supporting shaft is connected with the supporting plate, and the other end of the supporting shaft is rotationally connected with the supporting seat.
9. The hydraulic winch according to any one of claims 1 to 8, characterized in that: and two groups of bearings are arranged between the inner gear ring and the output shaft of the planet carrier.
10. The hydraulic winch according to any one of claims 1 to 8, characterized in that: the outer part of the winding drum is provided with a steel cable groove and a steel cable fixing component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211115838.6A CN115303970A (en) | 2022-09-14 | 2022-09-14 | Hydraulic winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211115838.6A CN115303970A (en) | 2022-09-14 | 2022-09-14 | Hydraulic winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115303970A true CN115303970A (en) | 2022-11-08 |
Family
ID=83866736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211115838.6A Pending CN115303970A (en) | 2022-09-14 | 2022-09-14 | Hydraulic winch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115303970A (en) |
-
2022
- 2022-09-14 CN CN202211115838.6A patent/CN115303970A/en active Pending
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