CN217736068U

CN217736068U - Torque-limiting type hydraulic coupler expansion sleeve connecting device

Info

Publication number: CN217736068U
Application number: CN202220682338.XU
Authority: CN
Inventors: 栾明库; 吴春
Original assignee: Dalian Transfer Fluid Coupling And Set Equipment Co ltd
Current assignee: Dalian Transfer Fluid Coupling And Set Equipment Co ltd
Priority date: 2022-03-27
Filing date: 2022-03-27
Publication date: 2022-11-04
Anticipated expiration: 2032-03-27

Abstract

The utility model discloses an expansion sleeve connecting device of a torque-limiting hydraulic coupler, which comprises a connecting hole, a locking mechanism, an expansion sleeve mechanism and a driving shaft; the elastic washer arranged in the locking mechanism of the utility model can ensure that the locking screw can not loosen during working, thereby improving the stability and reliability during use; the locking head is screwed in the utility model, the driving shaft can be firmly clamped in the connecting hole, and the stability and reliability in use and the convenience in installation are further improved; the utility model discloses well unscrewing locking head can order about left taper sleeve and right taper sleeve and move to the outside, is convenient for loosen the drive shaft, has improved the convenience of dismantlement to the damage of drive shaft has been avoided.

Description

Torque-limiting type hydraulic coupler expansion sleeve connecting device

Technical Field

The utility model relates to a hydraulic coupling technical field, specific torque-limiting type hydraulic coupling cover coupling device that rises that says so.

Background

The torque-limiting type hydraulic coupler has excellent function and wide application. But the assembly and disassembly are difficult. The main reason for the difficulty of assembly and disassembly is the insertion-type coupling mode. Usually, the motor shaft or the speed reducer shaft is directly inserted into the main shaft hole of the coupler. In order to ensure accurate centering of the coupler and to prevent head-shaking vibration during operation, the motor shaft and the shaft hole of the coupler are usually in transition fit. The tolerance of the motor shaft is generally m6, and the axle hole of the coupler is generally H7 or G7, so that the matching between the motor shaft and the axle hole of the coupler is sometimes interfered, sometimes a little clearance exists, and because the shell of the coupler is made of aluminum alloy and an oil seal is arranged outside the main axle, neither knocking nor heating is allowed during installation and disassembly, which makes the installation and the disassembly very difficult. Sometimes the coupler is damaged due to difficulty in installation. Particularly, after the motor shaft and the shaft hole of the coupler are used for a period of time, the motor shaft and the shaft hole of the coupler are seized due to corrosion and grinding, the disassembly difficulty is further increased, sometimes, the motor shaft cannot be disassembled, and the motor shaft has to be cut off, so that great loss is caused. In addition, because the assembly and disassembly are difficult, the assembly and disassembly time is prolonged, the working hours are wasted, the production is influenced, and the maintenance cost is increased; the existing torque-limiting type hydraulic coupler expansion sleeve connecting device is inconvenient to install and poor in stability after being used for a long time.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a torque-limiting type hydraulic coupling cover coupling device that rises has solved current torque-limiting type hydraulic coupling cover coupling device that rises and has risen when installing than inconvenient, and the stability after the long-time use also than poor problem.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: the torque-limiting type hydraulic coupler expansion sleeve connecting device comprises a hydraulic coupler main shaft and is characterized by further comprising a connecting hole, a locking mechanism, an expansion sleeve mechanism and a driving shaft; a connecting hole is formed in the right side of the hydraulic coupler spindle; the left side of the driving shaft is fixedly connected inside the connecting hole through a locking mechanism, and the outer portion of the left side of the driving shaft is connected with the inner wall of the connecting hole through an expanding sleeve mechanism.

Preferably, the specific structure of the locking mechanism comprises a gasket, an elastic washer, a locking screw, a protrusion, a clamping groove and a locking threaded hole; the locking threaded hole is formed in the center of the left side of the driving shaft; the plurality of the bulges are respectively arranged on the periphery of the step surface on the left side of the connecting hole in a circular manner; the clamping grooves are arranged in a circular shape and are formed around the end face of the left side of the driving shaft, and the insides of the clamping grooves are connected with the outsides of the corresponding bulges; the locking screw right side external screw thread is connected with the locking screw hole, be equipped with gasket and elastic washer between locking screw left side step face and the connecting hole left side step face, and the elastic washer is located the gasket left side.

Preferably, the locking screw is a socket head cap locking screw.

Preferably, the expansion sleeve mechanism comprises a left taper sleeve, an outer expansion sleeve, a left taper hole, a left-handed screw, a right taper hole, a right taper sleeve, a locking head and an inner boss; the outer part of the outer expansion sleeve is connected with the inner wall of the connecting hole, a left taper hole is formed in the left side of the outer expansion sleeve, a right taper hole is formed in the right side of the outer expansion sleeve, and an inner boss is arranged on the central inner wall of the outer expansion sleeve; the outer part of the left taper sleeve is connected with the inner wall of the left taper hole, and the inner part of the left taper sleeve is connected with the outer part of the driving shaft; the outer part of the right taper sleeve is connected with the inner wall of the right taper hole, and the inner part of the right taper sleeve is connected with the outer part of the driving shaft; the right-handed screw rods are multiple, the right sides of the right-handed screw rods are respectively connected with threaded holes arranged around the right taper sleeve, the right side ends of the right-handed screw rods are fixedly connected with locking heads, and the outer parts of the left sides of the right-handed screw rods are respectively movably connected in transverse holes arranged around the inner boss; the left-handed screw is a plurality of right-handed screw right side end is respectively fixedly connected with the corresponding left-handed screw left side end, and the plurality of left-handed screw left side external threads are respectively connected with threaded holes formed in the periphery of the left taper sleeve.

Preferably, the outer end face of the locking head is provided with an inner hexagonal hole.

Preferably, the number of the right-handed screw and the number of the left-handed screw are two.

The utility model has the advantages that:

(1) The utility model discloses the spring washer that sets up among the locking mechanism can ensure that locking screw can not become flexible during operation to stability and reliability when using have been improved.

(2) The utility model discloses in screw up the locking head, with the chucking of drive shaft firmly in the connecting hole, stability and reliability and the convenience of installation when also further having improved the use.

(3) The utility model discloses well unscrewing locking head can order about left taper sleeve and right taper sleeve and move to the outside to be convenient for loosen the drive shaft, improved the convenience of dismantlement and avoided the damage of drive shaft.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the locking mechanism.

Fig. 3 is a schematic structural diagram of the expansion sleeve mechanism.

Fig. 4 is an enlarged view of the position a in fig. 3.

In the figure: 1-a fluid coupling main shaft; 2-connecting holes; 3-a locking mechanism; 4-an expansion sleeve mechanism; 5-a drive shaft; 31-a gasket; 32-a resilient gasket; 33-locking screws; 34-a bump; 35-a card slot; 36-locking threaded holes; 41-left taper sleeve; 42-external expansion sleeve; 43-left taper hole; 44-left-handed screw; 45-right-handed screw; 46-right taper hole; 47-right taper sleeve; 48-a locking head; 49-inner boss.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

As shown in fig. 1, the torque-limiting type hydraulic coupler expansion sleeve connecting device comprises a hydraulic coupler main shaft 1, a connecting hole 2, a locking mechanism 3, an expansion sleeve mechanism 4 and a driving shaft 5; a connecting hole 2 is formed in the right side of the hydraulic coupler spindle 1; the left side of the driving shaft 5 is fixedly connected inside the connecting hole 2 through a locking mechanism 3, and the outside of the left side of the driving shaft 5 is connected with the inner wall of the connecting hole 2 through an expansion sleeve mechanism 4.

Example 2

As shown in fig. 2, the specific structure of the locking mechanism 3 includes a washer 31, an elastic washer 32, a locking screw 33, a protrusion 34, a slot 35 and a locking threaded hole 36; the locking threaded hole 36 is formed in the center of the left side of the driving shaft 5; the plurality of protrusions 34 are arranged on the periphery of the step surface on the left side of the connecting hole 2 in a circular manner; the clamping grooves 35 are arranged in a circular shape and are formed around the end face of the left side of the driving shaft 5, and the insides of the clamping grooves 35 are connected with the outsides of the corresponding protrusions 34; the right external thread of the locking screw 33 is connected with a locking threaded hole 36, a gasket 31 and an elastic washer 32 are arranged between the left side step surface of the locking screw 33 and the left side step surface of the connecting hole 2, and the elastic washer 32 is positioned on the left side of the gasket 31.

The locking screw 33 is a socket head cap locking screw, so that the locking screw 33 can be directly driven to rotate by a socket head cap wrench.

Example 3

As shown in fig. 3 and 4, the expansion sleeve mechanism 4 specifically includes a left taper sleeve 41, an outer expansion sleeve 42, a left taper hole 43, a left-handed screw 44, a right-handed screw 45, a right taper hole 46, a right taper sleeve 47, a locking head 48 and an inner boss 49; the outer part of the outer expansion sleeve 42 is connected with the inner wall of the connecting hole 2, a left taper hole 43 is formed in the left side of the outer expansion sleeve 42, a right taper hole 46 is formed in the right side of the outer expansion sleeve 42, and an inner boss 49 is arranged on the central inner wall of the outer expansion sleeve 42; the outer part of the left taper sleeve 41 is connected with the inner wall of the left taper hole 43, and the inner part of the left taper sleeve 41 is connected with the outer part of the driving shaft 5; the outer part of the right taper sleeve 47 is connected with the inner wall of the right taper hole 46, and the inner part of the right taper sleeve 47 is connected with the outer part of the driving shaft 5; the right-handed screws 45 are multiple, the right sides of the right-handed screws 45 are respectively connected with threaded holes formed in the periphery of a right taper sleeve 47, the end parts of the right sides of the right-handed screws 45 are fixedly connected with locking heads 48, and the outer parts of the left sides of the right-handed screws 45 are respectively movably connected in transverse holes formed in the periphery of an inner boss 49; the left-handed screw 44 is a plurality of right-handed screw 44, the right end of the left-handed screw 44 is fixedly connected with the left end of the corresponding right-handed screw 45, and the left external threads of the left-handed screw 44 are connected with the threaded holes formed in the periphery of the left taper sleeve 41.

An inner hexagonal hole is formed in the end face of the outer side of the locking head 48, so that the locking head 48 can be driven to rotate directly through an inner hexagonal wrench; the number of the right-handed screw 45 and the left-handed screw 44 is two.

The utility model discloses a user state does, during the installation, at first insert the drive shaft 5 set 4 inside that rises, then will rise set 4 and insert in connecting hole 2 and make protruding 34 card inside draw-in groove 35, then through locking mechanism 3 with the firm fixing in connecting hole 2 of drive shaft 5, the elastic washer 32 that sets up among the locking mechanism 3 here, can ensure that during operation locking screw 33 can not become flexible, thereby stability and reliability when using have been improved, then it drives right-handed screw 45 and left-handed screw 44 and rotates together to screw up locking head 48, and what right-handed screw 45 and left-handed screw 44 rotated together makes left taper sleeve 41 and right taper sleeve 47 move to the inboard together, thereby can be with the chucking of drive shaft 5 firmly in connecting hole 2, stability and reliability when also further having improved the use and the convenience of installation, it can order about left taper sleeve 41 and right taper sleeve 47 to move to the outside to screw up locking head 48 in addition, thereby be convenient for loosen drive shaft 5, just improved the convenience of dismantling and avoided the damage of drive shaft 5.

The control mode of the present invention is controlled by manual starting or by the existing automation technology, the connection diagram of the power element and the supply of the power source belong to the common knowledge in the field, and the present invention is mainly used for protecting the mechanical device, so the present invention does not explain the control mode and the wiring arrangement in detail.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted", "disposed", "connected", "fixed", "screwed" and the like are to be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating the inside of two elements or for interacting with each other, unless otherwise specifically defined, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, which are only illustrative, but also various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A torque-limiting type hydraulic coupler expansion sleeve connecting device comprises a hydraulic coupler main shaft (1), and is characterized by further comprising a connecting hole (2), a locking mechanism (3), an expansion sleeve mechanism (4) and a driving shaft (5);

a connecting hole (2) is formed in the right side of the hydraulic coupler spindle (1);

the left side of the driving shaft (5) is fixedly connected inside the connecting hole (2) through a locking mechanism (3), and the outer part of the left side of the driving shaft (5) is connected with the inner wall of the connecting hole (2) through an expanding sleeve mechanism (4);

the specific structure of the locking mechanism (3) comprises a gasket (31), an elastic washer (32), a locking screw (33), a protrusion (34), a clamping groove (35) and a locking threaded hole (36);

the locking threaded hole (36) is formed in the center of the left side of the driving shaft (5);

the plurality of the bulges (34) are arranged around the step surface on the left side of the connecting hole (2) in a circular manner;

the clamping grooves (35) are arranged in a circular manner and are formed around the end face of the left side of the driving shaft (5), and the insides of the clamping grooves (35) are connected with the outsides of the corresponding bulges (34);

locking screw (33) right side external screw thread is connected with locking screw hole (36), locking screw (33) left side step face with be equipped with gasket (31) and elastic washer (32) between connecting hole (2) left side step face, and elastic washer (32) are located gasket (31) left side.

2. The torque-limiting fluid coupling expansion sleeve coupling device according to claim 1, wherein the locking screw (33) is a socket head cap locking screw.

3. The torque-limiting type hydraulic coupling expansion sleeve connecting device as claimed in claim 1, wherein the specific structure of the expansion sleeve mechanism (4) comprises a left taper sleeve (41), an outer expansion sleeve (42), a left taper hole (43), a left-hand screw (44), a right-hand screw (45), a right taper hole (46), a right taper sleeve (47), a locking head (48) and an inner boss (49);

the outer part of the outer expansion sleeve (42) is connected with the inner wall of the connecting hole (2), a left taper hole (43) is formed in the left side of the outer expansion sleeve (42), a right taper hole (46) is formed in the right side of the outer expansion sleeve (42), and an inner boss (49) is arranged on the central inner wall of the outer expansion sleeve (42);

the outer part of the left taper sleeve (41) is connected with the inner wall of a left taper hole (43), and the inner part of the left taper sleeve (41) is connected with the outer part of the driving shaft (5);

the outer part of the right taper sleeve (47) is connected with the inner wall of the right taper hole (46), and the inner part of the right taper sleeve (47) is connected with the outer part of the driving shaft (5);

the right-handed screws (45) are multiple, the right sides of the right-handed screws (45) are respectively connected with threaded holes formed in the periphery of a right taper sleeve (47), the end parts of the right sides of the right-handed screws (45) are fixedly connected with locking heads (48), and the outer parts of the left sides of the right-handed screws (45) are respectively movably connected in transverse holes formed in the periphery of an inner boss (49);

the left-handed screw (44) is a plurality of right-handed screw (44) right side end is fixedly connected with the corresponding left-handed screw (45) left side end, and the left-handed screw (44) left side external thread is connected with the threaded holes formed in the periphery of the left taper sleeve (41).

4. The torque-limiting hydraulic coupling expansion sleeve coupling device as claimed in claim 3, wherein the outer end face of the locking head (48) is provided with a hexagon socket.

5. The torque-limiting fluid coupling expansion sleeve coupling device according to claim 3, wherein there are two right-handed screws (45) and two left-handed screws (44).