Hydraulic winch with follow-up function

Abstract

The utility model relates to the technical field of winches, in particular to a hydraulic winch with a follow-up function, which comprises a winding drum body, two ends of a central shaft of the winding drum body respectively and movably penetrate through a rotating hole of a left fixing seat and a rotating hole of a right fixing seat on the corresponding side, and the left fixing seat and the right fixing seat are fixedly arranged. Winding drum baffle rings are integrally formed at the two ends of the winding drum body, a speed reduction driving mechanism is fixedly installed on the left end face of the left fixing base, the output end of the speed reduction driving mechanism is fixedly connected with the corresponding end of the center shaft, and follow-up brake units are symmetrically arranged on the upper portion and the lower portion of the winding drum body respectively. According to the hydraulic winch, the rotating speed of the winch can be monitored in real time by means of an existing control center of the hydraulic winch in the process of lifting a heavy object; and when it is monitored that follow-up braking is needed at any time, safe braking can be achieved through cooperation of follow-up braking units arranged on the upper portion and the lower portion and a speed reduction driving mechanism, the braking flexibility is improved, and the influence speed is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to winch technical field especially hydraulic winch with follow function. BACKGROUND

[0002] The hydraulic winch is a kind of equipment using hydraulic system as power source, and lifting or dragging heavy objects through winding steel wire rope or chain.

[0003] The current hydraulic winch mainly relies on the rotation of the hydraulic motor to drive the winding drum to lift the heavy objects. For example, the patent application number CN202221454661.8 discloses a hydraulic winch with protection structure, which mainly includes a winch body, a hydraulic drive module mounted on the winch body, a first protection module arranged inside the winch body for cooperation and fixation protection, a second protection module arranged outside the first protection module for impact protection of the side surface of the winch body, a bottom protection module arranged under the second protection module for shock absorption protection of the bottom of the winch body, a reinforcing buffer assembly arranged inside the second protection module for elastic buffering, and a transverse protection support rod arranged inside the second protection module.

[0004] As can be seen, the winch structure uses the first protection module and the second protection module arranged outside the first protection module to provide elastic buffering protection for the side surface of the hydraulic winch. However, it still relies on the hydraulic drive motor to control the operation of the winch body to achieve lifting during the lifting of the heavy objects. This winch structure mainly protects the winch body.

[0005] However, during actual construction, the precise movement of the hydraulic winch needs to be controlled in some working conditions that require frequent adjustment of the position of heavy objects, such as hoisting operations on construction sites, and the retraction and extension of anchor chains on ships. When the load changes greatly during the operation, it is necessary to maintain the stability and safety of the displacement work. The hydraulic winch in the above prior art has no obvious improvement in the winch follow-up structure, and only realizes the mechanical protection of the inside and side surface of the winch body. The improvement in safe follow-up adjustment is not obvious, and it cannot be applied to various complex working conditions.

[0006] Therefore, the utility model improves the safety of the hydraulic winch in the prior art, and proposes a hydraulic winch with follow-up function to better solve the problems in the prior art. SUMMARY

[0007] The utility model discloses a hydraulic winch with follow-up function, which comprises a drum body, the both ends of the central shaft of the drum body are movably penetrated through the rotating holes of the left fixed seat and the right fixed seat on the corresponding sides, the left fixed seat and the right fixed seat are fixedly arranged, drum stop rings are integrally formed at the both ends of the drum body, a speed reduction drive mechanism is fixedly installed on the left end face of the left fixed seat, the output end of the speed reduction drive mechanism is fixedly connected with the corresponding end of the central shaft, follow-up brake units are symmetrically arranged on the upper part and the lower part of the drum body, the follow-up brake units are used in cooperation, hydraulic motors are fixedly installed on the right end face of the right fixed seat, and each hydraulic motor is used for driving the follow-up brake unit at the corresponding position to pivot around the fixed shaft and abut against the steel wire rope wound on the drum body.

[0008] Preferably, in any of the above solutions, the speed reduction drive mechanism comprises a general drive motor fixedly installed on the left end face of the left fixed seat, a speed reducer is arranged on the general drive motor, and the output shaft of the speed reducer is fixedly connected with the corresponding end of the central shaft.

[0009] Preferably, in any of the above solutions, the follow-up brake unit comprises a horizontal follow-up shaft arranged in parallel on the periphery of the drum body, the both ends of the horizontal follow-up shaft are movably penetrated through the left fixed seat and the right fixed seat on the corresponding sides and extend to the outside, the right end of the horizontal follow-up shaft is fixedly connected with the output shaft of the hydraulic motor at the corresponding position, a positioning plate seat is arranged on one side of the horizontal follow-up shaft between the drum stop rings, the inner end of the positioning plate seat is fixedly sleeved on the outer side wall of the horizontal follow-up shaft, a plurality of adjustment locking pieces are arranged on the positioning plate seat at the middle part along the length direction, the front end and the rear end of each adjustment locking piece are fixedly arranged on the inner end face of the brake friction plate at the corresponding position, and the brake friction plate abuts against the steel wire rope wound on the drum body in the working state.

[0010] Preferably, in any of the above solutions, the adjustment locking piece comprises a stud bolt movably penetrated through the through hole at the corresponding position of the positioning plate seat, the front end and the rear end of the stud bolt are detachably fixed on the inner side wall of the brake friction plate at the corresponding position, lock nuts are threadedly screwed on the outer side walls of the stud bolts on the front side and the rear side of the positioning plate seat, and the positioning plate seat is clamped by the lock nuts in cooperation.

[0011] Preferably, in any of the above solutions, a power supply is arranged on the working face of each brake friction plate, and each pressure sensor is signal-connected with the control system of the hydraulic winch.

[0012] Preferably, in any of the above solutions, in the follow-up braking state, at least one of the follow-up brake units is in a state of pressing the steel wire rope tightly.

[0013] Preferably, in any of the above solutions, the external thread provided on the outer wall of each stud is a fine thread.

[0014] Compared with the prior art, the hydraulic winch has the following beneficial effects:

[0015] 1. In the process of lifting heavy objects, the hydraulic winch can monitor the rotation speed of the winch in real time by means of the existing control center of the hydraulic winch, and when it is necessary to follow the brake at any time, the upper and lower follow-up brake units can cooperate with the speed reduction drive mechanism to achieve safe braking and improve the flexibility and speed of braking.

[0016] 2. When braking the steel wire rope on the drum body, the two follow-up brake units can achieve friction braking by quickly pressing the steel wire rope, and the torque output of the hydraulic motor can be controlled to press the current steel wire rope by means of the corresponding brake friction plate, so as to achieve the purpose of fast and safe braking.

[0017] 3. The pressure sensor provided on each brake friction plate is controlled to output the torque of the hydraulic motor as needed to ensure safe braking and improve the safety of slow follow-up braking during lifting heavy objects. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed in the specific embodiments or prior art description. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual proportions.

[0019] Figure 1 It is a structural schematic diagram of the present application.

[0020] Figure 2 It is a partial side view structural schematic diagram of the two follow-up brake units of the present application in the installed state.

[0021] Figure 3 It is a partial side view structural schematic diagram of one of the two follow-up brake units of the present application in the working state. Figure 2

[0022] Figure 4 It is a partial side view structural schematic diagram of the two follow-up brake units of the present application in the first working state. Figure 2

[0023] ​​Figure 5 Figure 1 is a schematic view of the left side of the two follow-up brake units in the second working state. Figure 2 Figure 1 is a schematic view of the left side of the two follow-up brake units in the second working state.

[0024] In the figure, 1 is a winding drum body; 2 is a central shaft; 3 is a left fixed seat; 4 is a right fixed seat; 5 is a winding drum stop ring; 6 is a hydraulic motor; 7 is a total drive motor; 8 is a speed reducer; 9 is a horizontal follow-up shaft; 10 is a swing plate seat; 11 is a brake friction plate; 12 is a double-headed stud; 13 is a locking nut; and 14 is a pressure sensor. DETAILED DESCRIPTION

[0025] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and therefore only serve as examples, and cannot limit the protection scope of the utility model. The specific structure of the utility model is shown in Figures 1-5

[0026] Embodiment 1: a hydraulic winch with follow-up function, comprising a winding drum body 1, both ends of a central shaft 2 of the winding drum body 1 are movably penetrated through the rotating holes of a left fixed seat 3 and a right fixed seat 4 on the corresponding side, the left fixed seat 3 and the right fixed seat 4 are both fixedly arranged, a winding drum stop ring 5 is integrally formed at both ends of the winding drum body 1, a speed reduction drive mechanism is fixedly installed on the left end face of the left fixed seat 3, the output end of the speed reduction drive mechanism is fixedly connected with the corresponding end of the central shaft 2, follow-up brake units are symmetrically arranged at the upper part and the lower part of the winding drum body 1 respectively, the two follow-up brake units are used in cooperation, hydraulic motors 6 are fixedly installed on the right end face of the right fixed seat 4 respectively, and each hydraulic motor 6 is used to drive the follow-up brake unit at the corresponding position to pivot and abut against the steel wire rope wound on the winding drum body 1.

[0027] The hydraulic winch with follow-up function designed in the utility model directly relies on the left fixed seat 3 and the right fixed seat 4 to complete the fixed installation of the whole winch structure when in use, realizes the electrical signal connection of the control part of the winch after the installation is completed, completes the pulling or lifting of the heavy object after the connection is completed, relies on the speed reduction drive mechanism to control the rotating speed of the winding drum during the lifting process, controls the speed reduction drive mechanism to brake when braking is needed, and simultaneously controls the two follow-up brake units on the corresponding sides of the upper part and the lower part to start, so as to complete the follow-up braking of the winding drum body 1 and the steel wire rope wound thereon during the low-speed running process, and improve the braking effect during the follow-up process.

[0028] ​Preferably in any of the above solutions, the speed reduction drive mechanism comprises a general drive motor 7 fixedly installed on the left end face of the left fixed seat 3, and a speed reducer 8 is arranged on the general drive motor 7, and the output shaft of the speed reducer 8 is fixedly connected with the corresponding end of the central shaft 2.

[0029] The speed reduction drive mechanism in the utility model improves the dragging and lifting power by means of the general drive motor 7 during work, and realizes speed reduction control by means of the speed reducer 8 during use.

[0030] Preferably in any of the above solutions, the external thread arranged on the outer side wall of each double-headed stud 12 is a fine thread.

[0031] The pitch of the fine thread is small, and the tooth type height is low, so that the self-locking property is ensured, and greater friction can be provided.

[0032] Embodiment 2: Compared with Embodiment 1, the difference lies in that the following technical features are further included:

[0033] Preferably in any of the above solutions, the follow-up brake unit comprises a horizontal follow-up shaft 9 arranged in parallel on the periphery of the drum body 1, both ends of the horizontal follow-up shaft 9 are movably penetrated to the left fixed seat 3 and the right fixed seat 4 on the corresponding side and extend to the outside, the right end of the horizontal follow-up shaft 9 is fixedly connected with the output shaft of the hydraulic motor 6 at the corresponding position, a swing plate seat 10 is arranged on one side of the horizontal follow-up shaft 9 between the two drum stop rings 5, the inner end of the swing plate seat 10 is fixedly sleeved on the outer side wall of the horizontal follow-up shaft 9, a plurality of adjustment locking pieces are arranged at intervals in the length direction of the swing plate seat 10 in the middle part of the swing plate seat 10, the front end and the rear end of each adjustment locking piece are fixedly connected with the inner end face of the brake friction plate 11 at the corresponding position, and the brake friction plate 11 is abutted against the steel wire rope wound on the drum body 1 in the working state.

[0034] When the follow-up brake unit works, the rotation of the entire horizontal follow-up shaft 9 is driven by the driving operation of the hydraulic motor 6, when the horizontal follow-up shaft 9 rotates, the inner end of the swing plate seat 10 fixedly connected with the horizontal follow-up shaft 9 drives the entire swing plate seat 10 to swing, and in the process of swinging of the swing plate seat 10, the adjustment locking pieces fixedly installed thereon can drive the brake friction plate 11 to approach the steel wire rope wound on the outer side wall of the current drum body 1 as needed, until the steel wire rope is abutted against and friction braking is realized, so that the safety braking of the steel wire rope in the operating state or the abnormal state is ensured.

[0035] In any of the above schemes, preferably, the adjusting locking member comprises a stud 12 which is movably threaded through a hole in the corresponding position of the setting plate seat 10, the front end and the rear end of the stud 12 are respectively detachably fixed on the inner side wall of the brake friction plate 11 at the corresponding position, and the outer side wall of the stud 12 at the front side and the rear side of the setting plate seat 10 is threadedly combined with a locking nut 13, and the two locking nuts 13 are cooperatively used to clamp the setting plate seat 10.

[0036] Each stud 12 in the adjusting locking member can be adjusted according to the current outer diameter of the drum body 1, and when adjusted, the studs 12 on both sides are reversely threaded as needed to loosen, at this time, the current stud 12 is controlled to move along the front-rear direction, and when moved to the position, the two locking nuts are combined to clamp the current setting plate seat 10, at this time, the stud 12 is locked and positioned.

[0037] In any of the above schemes, preferably, a pressure sensor 14 with a power supply is installed on the working surface of each brake friction plate 11, and each pressure sensor 14 is signal connected with the control system of the hydraulic winch.

[0038] The pressure sensor 14 can monitor the pressure of the current brake friction plate 11 on the steel wire in real time, and effectively realize reasonable control of the pressing force.

[0039] In any of the above schemes, preferably, in the follow-up braking state, at least one of the two follow-up brake units is in a state of pressing the steel wire.

[0040] When the two follow-up brake units are synchronously braked, the braking effect can be better improved, and when the two follow-up brake units work synchronously, there are two working states, the first one is shown in Figure 4 , both of the two follow-up brake units are in a braking state and are symmetrically arranged about a horizontal axis, and the included angle between the two follow-up brake units is obtuse, and the second one is shown in Figure 5 , both of the two follow-up brake units are in a braking state and are symmetrically arranged about a horizontal axis, and the included angle between the two follow-up brake units is 180°.

[0041] The two braking modes can achieve different braking effects, when the outer diameter of the drum body 1 is large, the second symmetric braking state with an included angle of 180° as shown in Figure 5 is adopted to improve the braking effect.

[0042] Specific working principle: in use, the left fixed seat 3 and the right fixed seat 4 on it are directly used to complete the fixed installation of the entire winch structure, and after installation is completed, the control part of the winch is signal connected.

[0043] After the connection is completed, the hydraulic winch is started to complete the pulling or lifting of the heavy object, and the rotation speed of the drum is controlled by the deceleration drive mechanism during the lifting process.

[0044] When braking is required, the deceleration drive mechanism is controlled to brake, and the two follow-up brake units on the corresponding sides of the upper part and the lower part are controlled to start, so that the drum body 1 and the steel wire rope wound thereon during slow travel are braked at any time, and the braking effect during follow-up is improved.

[0045] As can be seen from the above, in the process of lifting the heavy object, the rotation speed of the winch can be monitored in real time by the existing control center of the hydraulic winch, and when it is monitored that the follow-up brake is required, the safety braking can be realized by the follow-up brake units arranged on the upper part and the lower part in cooperation with the deceleration drive mechanism, and the flexibility and influence speed of braking are improved; when the external braking of the steel wire rope on the drum body 1 is performed, the friction braking can be realized by the rapid abutting of the two follow-up brake units against the steel wire rope, the torque output of the hydraulic motor 6 is controlled during braking, and the corresponding brake friction plate 11 can be pressed against the current steel wire rope, so that the purpose of fast and safe braking is achieved; the pressure sensor 14 arranged on each brake friction plate 11 is controlled to control the torque output of the hydraulic motor 6 as required, so as to ensure the purpose of safe braking and improve the safety during slow follow-up braking during lifting of the heavy object.

[0046] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application; any alternative improvement or change made by those skilled in the art to the embodiments of the present application falls within the protection scope of the present application.

[0047] The details of the present application not described are well-known to those skilled in the art.

Claims

1. Hydraulic winch with follow-up function, characterized in that: The reel body includes a center shaft, the two ends of the center shaft respectively pass through the rotating holes of the left fixed seat and the right fixed seat on the corresponding side, the left fixed seat and the right fixed seat are fixedly arranged, the reel stop ring is integrally formed at the two ends of the reel body, the reduction drive mechanism is fixedly installed on the left end face of the left fixed seat, the output end of the reduction drive mechanism is fixedly connected with the corresponding end of the center shaft, the follow-up brake units are symmetrically arranged on the upper part and the lower part of the reel body, the two follow-up brake units are used in cooperation, the hydraulic motors are fixedly installed on the right end face of the right fixed seat, and each hydraulic motor is used for driving the follow-up brake unit at the corresponding position to pivot around the fixed shaft and abut against the steel wire rope wound on the reel body.

2. Hydraulic winch with follow-up function according to claim 1, characterized in that The reduction drive mechanism includes a general drive motor fixedly installed on the left end face of the left fixed seat, and a speed reducer is arranged on the general drive motor.

3. Hydraulic winch with follow-up function according to claim 2, characterized in that The follow-up brake unit includes a horizontal follow-up shaft arranged in parallel on the periphery of the reel body, the two ends of the horizontal follow-up shaft respectively pass through the left fixed seat and the right fixed seat on the corresponding side and extend to the outside, the right end of the horizontal follow-up shaft is fixedly connected with the output shaft of the hydraulic motor at the corresponding position, a positioning plate seat is arranged on one side of the horizontal follow-up shaft between the two reel stop rings, the inner end of the positioning plate seat is fixedly sleeved on the outer side wall of the horizontal follow-up shaft, a plurality of adjusting locking pieces are arranged on the positioning plate seat in the middle part and in the length direction, the front end and the rear end of each adjusting locking piece are fixedly arranged on the inner end face of the brake friction plate at the corresponding position, and the brake friction plate abuts against the steel wire rope wound on the reel body in the working state.

4. The hydraulic winch with follow-up function according to claim 3, characterized in that: The adjusting locking piece includes a stud passing through the through hole at the corresponding position of the positioning plate seat, the front end and the rear end of the stud are detachably fixed on the inner side wall of the brake friction plate at the corresponding position, and the lock nut is threadedly screwed on the outer side wall of the stud on the front side and the rear side of the positioning plate seat, and the two lock nuts are matched to clamp the positioning plate seat.

5. Hydraulic winch with follow-up function according to claim 4, characterized in that The pressure sensor is arranged on the working face of each brake friction plate and is connected with the control system of the hydraulic winch.

6. Hydraulic winch with follow-up function according to claim 5, characterized in that In the follow-up braking state, at least one of the two follow-up brake units is in the state of pressing the steel wire rope.

7. Hydraulic winch with follow-up function according to claim 6, characterized in that The outer threads arranged on the outer side wall of each stud are fine threads.

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