CN110076551B

CN110076551B - A hydraulic locking device

Info

Publication number: CN110076551B
Application number: CN201910461289.XA
Authority: CN
Inventors: 赵永生; 庞有金; 杜习春; 田克俭; 郑东豪; 苏雷; 齐乔林; 曾达幸
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-05-08
Anticipated expiration: 2039-05-30
Also published as: CN110076551A

Abstract

The invention discloses a hydraulic locking device, comprising a cylinder body, at least two locking units are arranged on the outer side wall of the cylinder body, the locking unit comprises a casing fixedly connected with the cylinder body, and the side wall of the cylinder body corresponds to the casing A gap is provided, and a lock head device is arranged in the shell; the lock head device includes a lock shell, a lead screw, a screw nut and a lock head. The lead screw is threaded with the screw nut, and the screw nut is fixedly connected with the lock head. A chute is arranged on the inner wall of the lock shell. The lock head is fixed with a slider that slides with the chute. The output shaft of the reducer is connected with the output shaft of the motor, and the reducer and the motor are respectively fixed with the lock shell; a hydraulic jack capable of driving the lock shell to rotate around the rotating shaft is also fixed on the inner wall of the shell. The hydraulic locking device of the present invention facilitates workers to lock heavy parts.

Description

Hydraulic locking device

Technical Field

The invention relates to the technical field of locking equipment, in particular to a hydraulic locking device.

Background

With the rapid development of the industrial strength in China, the transportation of heavy parts is more and more frequent, so the locking problem of the parts cannot be ignored.

At present, a locking mechanism of a heavy part has large size and poor bearing capacity, and is extremely inconvenient to unload. The control of the locking mechanism can not realize automation, and the requirement on manual operation is higher and the difficulty is high. Therefore, a hydraulic locking mechanism with large load and easy unloading is needed.

Disclosure of Invention

The invention aims to provide a hydraulic locking device, which is used for solving the problems in the prior art and is convenient for workers to lock heavy parts.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a hydraulic locking device, which comprises a cylinder body, wherein the outer side wall of the cylinder body is provided with at least two locking units, each locking unit comprises a shell fixedly connected with the cylinder body, the side wall of the cylinder body is provided with a notch corresponding to the shell, and a locking head device penetrates through the shell; the lock head device comprises a lock shell, a lead screw, a nut and a lock head, wherein the lock shell is rotationally connected with the shell through a rotating shaft, the lead screw is rotationally arranged in the lock shell, the lead screw is in threaded fit with the nut, the nut is fixedly connected with the lock head, a sliding groove which is parallel to the axial direction of the lead screw is arranged on the inner wall of the lock shell, a sliding block which is in sliding fit with the sliding groove is fixedly arranged on the side wall of the lock head, the lock head is close to and faces the notch, one end, away from the notch, of the lead screw is connected with an output shaft of a speed reducer, an input shaft of the speed reducer is connected with an output shaft of a motor, and the speed reducer and the motor are fixedly connected with the lock shell through a; and the inner wall of the shell is also fixedly provided with a hydraulic jack which can drive the lock shell to rotate around the rotating shaft.

Preferably, the locking units are evenly distributed on the side wall of the barrel.

Preferably, the lock cylinder device further comprises a single thrust bearing, and the plus shoulder of the output end of the lead screw presses on the single thrust bearing.

Preferably, the hydraulic jack is near an end of the housing remote from the barrel.

Preferably, the housing includes an upper housing and a lower housing, and the upper housing and the lower housing are connected by a bolt.

Preferably, the device further comprises a support, wherein one end of the support is fixedly connected with the cylinder body, and the other end of the support is fixedly connected with the shell.

Preferably, the number of the locking units is two.

Preferably, the area of the gap is greater than the area of the cross-section of the locking head, which can pass through the gap.

Compared with the prior art, the hydraulic locking device has the following technical effects:

the hydraulic locking device is convenient for workers to lock heavy parts. The hydraulic locking device has the advantages of simple structure, small size, integrated design structure and convenient installation and disassembly; the locking device is integrated in the shell, so that the installation and maintenance are facilitated, only a bolt interface needs to be reserved on the barrel during installation, and the structural change of the installation position is small. The hydraulic jack can be used for easily locking and unlocking without unloading, and the use is convenient. The hydraulic locking device solves the problem that the torque required by directly pulling down the lock head in the conventional unlocking mode is huge, and the load is unloaded by changing the force transmission mode, so that the lock is easy to unlock.

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 structural diagram of a hydraulic locking device of the present invention;

FIG. 2 is a schematic structural diagram of a locking unit in the hydraulic locking device of the present invention;

FIG. 3 is an exploded view of the locking head assembly of the hydraulic locking apparatus of the present invention;

FIG. 4 is a partial schematic structural view of a locking unit in the hydraulic locking device of the present invention;

FIG. 5 is a schematic structural view of a housing of the hydraulic locking device of the present invention;

the hydraulic lifting device comprises a hydraulic jack 1, a speed reducer 2, a motor 3, a cylinder 4, a first connecting frame 5, a lock device 6, a shell 7, a support 8, a lock shell 9, a lock head 10, a nut 11, a lead screw 12, a single thrust bearing 13, a second connecting frame 14, an upper shell 15, a lower shell 16 and a sliding block 17.

Detailed Description

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

The invention provides a hydraulic locking device, which comprises a cylinder body, wherein the outer side wall of the cylinder body is provided with at least two locking units, each locking unit comprises a shell fixedly connected with the cylinder body, the side wall of the cylinder body is provided with a notch corresponding to the shell, and a locking head device penetrates through the shell; the lock head device comprises a lock shell, a lead screw, a nut and a lock head, wherein the lock shell is rotationally connected with the shell, the lead screw is rotationally arranged in the lock shell, the lead screw is in threaded fit with the nut, the nut is fixedly connected with the lock head, a sliding groove which is parallel to the axial direction of the lead screw is arranged on the inner wall of the lock shell, a sliding block which is in sliding fit with the sliding groove is fixedly arranged on the side wall of the lock head, the lock head is close to and faces the notch, one end, away from the notch, of the lead screw is connected with an output shaft of a speed reducer, an input shaft of the speed reducer is connected with an output shaft of a motor, a connecting frame is fixedly arranged on the lock shell, and the speed reducer and the motor are fixedly connected with the connecting; and the inner wall of the shell is also fixedly provided with a hydraulic jack which can drive the lock shell to rotate around the rotating shaft.

The hydraulic locking device is convenient for workers to lock heavy parts.

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.

As shown in fig. 1-5, the hydraulic locking device of this embodiment includes a cylinder 4, two locking units are disposed on an outer side wall of the cylinder 4, each locking unit includes a housing 7 fixedly connected to the cylinder 4, a gap is disposed on a side wall of the cylinder 4 corresponding to the housing 7, and a lock device 6 is disposed in the housing 7 in a penetrating manner; the shell 7 comprises an upper shell 15 and a lower shell 16, the upper shell 15 and the lower shell 16 are connected through bolts, and the upper shell 15 is fixedly connected with the barrel 4 through bolts.

The lock device 6 comprises a lock shell 9, a screw 12, a nut 11 and a lock head 10, the lock shell 9 is rotatably connected with the shell 7, the screw 12 is rotatably arranged in the lock shell 9, the screw 12 is in threaded fit with the nut 11, the nut 11 is fixedly connected with the lock head 10, a sliding groove which is parallel to the axial direction of the screw 12 is arranged on the inner wall of the lock shell 9, a sliding block 17 which is in sliding fit with the sliding groove is fixedly arranged on the side wall of the lock head 10, the lock head 10 is close to and faces to a gap, the area of the gap is larger than that of the cross section of the lock head 10, and the lock head 10 can penetrate; the locking device 6 further comprises a single thrust bearing 13, and a shaft shoulder at the output end of the lead screw 12 is pressed on the single thrust bearing 13 and used for transmitting stress. One end of the screw rod 12, which is far away from the gap, is connected with an output shaft of the speed reducer 2, an input shaft of the speed reducer 2 is connected with an output shaft of the motor 3, the speed reducer 2 is fixedly connected with the lock shell 9 through a second connecting frame 14, and the motor 3 is fixedly connected with the lock shell 9 through a first connecting frame 5; the motor 3 can drive the screw 12 to rotate through the speed reducer 2, and the screw 12 can drive the nut 11 and the lock head 10 to move up and down along the screw 12, so that the lock head 10 clamps or releases a clamped object.

The inner wall of the bottom of the shell 7 is fixedly provided with a hydraulic jack 1, and the hydraulic jack 1 can drive the lock shell 9 to rotate around the rotating shaft at a small angle.

This embodiment hydraulic locking device still includes

support

8, and 8 one end of support links firmly with barrel 4, and the other end links firmly with casing 7, and support 8 can provide the supporting role for casing 7, makes casing 7 and barrel 4 more stable be connected.

The hydraulic locking device of the embodiment is used as follows:

when locking is needed, the hydraulic jack 1 is filled with oil, and the lock head device 6 is jacked up to limit the rotation of the lock head device. And then starting the motor 3, wherein the motor 3 drives the lock head 10 to extend out through the speed reducer 2 and the lead screw 12 until the locking surface of the lock head 10 passes through the notch to be contacted with the object to be locked and gives a certain pretightening force, and the locking process is finished. When needing the unblock, at first with hydraulic jack 1 oil drain, hydraulic jack 1 withdrawal back, tapered end device 6 can revolve the axis of rotation small-angle rotation, and tapered end 10 locking surface is separated with by the locking object to unload most locking force, then open motor 3 and rotate, motor 3 passes through reduction gear 2, lead screw 12 drive tapered end 10 withdraws, and the unblock process is ended.

In the description of the present invention, it should be noted that the terms "top", "bottom", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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 above, the present disclosure should not be construed as limiting the invention.

Claims

1. A hydraulic locking device, characterized in that it comprises a cylindrical body, at least two locking units are provided on the outer side wall of the cylindrical body, and the locking units comprise a casing fixedly connected with the cylindrical body , the side wall of the cylinder body is provided with a gap corresponding to the casing, and a lock head device is passed through the casing; the lock head device includes a lock shell, a lead screw, a screw nut and a lock head, the lock head device The casing is rotatably connected with the casing through a rotating shaft, the lead screw is rotatably arranged in the lock casing, the lead screw is threadedly matched with the lead nut, and the lead nut is fixedly connected with the lock head, so The inner wall of the lock housing is provided with a chute parallel to the axial direction of the lead screw, and a sliding block slidingly matched with the chute is fixed on the side wall of the lock head, and the lock head approaches and faces toward The notch, the end of the lead screw away from the notch is connected with the output shaft of the reducer, the input shaft of the reducer is connected with the output shaft of the motor, the reducer and the motor are respectively connected to the reducer through a connecting frame. The lock case is fixedly connected; a hydraulic jack capable of driving the lock case to rotate around the rotating shaft is also fixed on the inner wall of the case. When unlocking, the hydraulic jack retracts and drives the lock head device to rotate The rotating shaft rotates to separate the locking surface of the lock head from the object to be locked, thereby unloading the locking force.

2 . The hydraulic locking device according to claim 1 , wherein the locking units are evenly distributed on the side wall of the cylinder. 3 .

3 . The hydraulic locking device according to claim 1 , wherein the locking device further comprises a single thrust bearing, and the shaft shoulder of the output end of the lead screw is pressed on the single thrust bearing. 4 .

4 . The hydraulic locking device according to claim 1 , wherein the hydraulic jack is close to the end of the casing away from the cylinder. 5 .

5 . The hydraulic locking device according to claim 1 , wherein the casing comprises an upper casing and a lower casing, and the upper casing and the lower casing are connected by bolts. 6 .

6 . The hydraulic locking device according to claim 1 , further comprising a bracket, one end of the bracket is fixedly connected to the cylinder body, and the other end of the bracket is fixedly connected to the housing. 7 .

7. The hydraulic locking device according to claim 1, wherein there are two locking units.

8 . The hydraulic locking device according to claim 1 , wherein the area of the notch is larger than the area of the cross section of the lock head, and the lock head can pass through the notch. 9 .