阅读说明：本技术 一种机械设备连轴传动的内胀套装置及安装和使用方法 (Internal expansion sleeve device for mechanical equipment connecting shaft transmission and installation and use method ) 是由 江涛 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种机械设备连轴传动的内胀套装置及安装和使用方法,它包括由套管、顶块、底座、活塞和连杆机构组成的内涨套。通过控制活塞杆的运动来带动顶块的外扩和内缩,实现顶块与动力机和工作机接触和退出接触。通过顶块外表面与动力机和工作机的传动件内表面的摩擦力作用,动力机就能带动工作机进行同轴转动。本发明取消了传统胀套的键销连接,改为摩擦传动,使得内胀套和传动轴之间没有键槽削弱,也无相对运动,传动效率更高。在工作中不会产生磨损,延长内胀套的使用寿命,有效保证了设备运行的安全。同时在组装和拆卸时无需对构件进行加热处理,使组装和拆卸更加方便省力。更能在工作机过载运行时退出连接,保证设备运行安全。(the invention discloses an internal expansion sleeve device for mechanical equipment connecting shaft transmission and an installation and use method thereof. The movement of the piston rod is controlled to drive the ejection block to expand outwards and contract inwards, so that the ejection block is in contact with and separated from the power machine and the working machine. The power machine can drive the working machine to rotate coaxially through the friction force between the outer surface of the top block and the inner surfaces of the transmission parts of the power machine and the working machine. The invention cancels the key pin connection of the traditional expansion sleeve and changes the traditional expansion sleeve into friction transmission, so that no key groove is weakened between the inner expansion sleeve and the transmission shaft, no relative movement is generated, and the transmission efficiency is higher. The inner expanding sleeve can not be worn during working, the service life of the inner expanding sleeve is prolonged, and the safety of equipment operation is effectively guaranteed. Meanwhile, the components are not required to be heated during assembly and disassembly, so that the assembly and disassembly are more convenient and labor-saving. The connection can be quitted when the working machine runs in an overload state, and the running safety of the equipment is ensured.)

1. the utility model provides a mechanical equipment links driven interior cover device that expands of axle, it includes work machine driving medium (2), engine driving medium (3) and piston rod drive (5), its characterized in that: inner expanding sleeves (1) are sleeved on the inner walls of the cavities of the working machine transmission part (2) and the power machine transmission part (3); the inner expansion sleeve (1) comprises a sleeve (11), a top block (12), a base (13) and a piston rod (14); the sleeve (11) is welded on the end surface of the base (13); two ejector blocks (12) are oppositely arranged on the outer surface of the sleeve (11); the top block (12) is respectively connected to the sleeve (11) and the piston rod (14) through more than one group of link mechanisms (6); the end of the piston rod (14) extends out of the base (13) and is connected to the piston rod driving device (5).

2. the internal expanding sleeve device for the mechanical equipment connecting shaft transmission according to claim 1, wherein: the link mechanism (6) comprises a driving link (61) and a driven link (62); the ends of the two sides of the driven connecting rod (62) are respectively hinged with the sleeve (11) and the top block (12); one end of the driving connecting rod (61) is hinged on the piston rod (14), and the other end is hinged on the middle position of the rod body of the driven connecting rod (62).

3. The internal expanding sleeve device for the mechanical equipment connecting shaft transmission according to claim 1, wherein: two semicircular buckles (4) are arranged on the base (13).

4. The internal expanding sleeve device for the mechanical equipment connecting shaft transmission according to claim 1, wherein: the outer surface of the top block (12) is of an arc-shaped structure, and the diameter of the arc is equal to the inner diameters of the working machine transmission part (2) and the power machine transmission part (3).

5. The internal expanding sleeve device for the mechanical equipment connecting shaft transmission according to claim 1, wherein: the piston rod driving device (5) is an electric push rod or a hydraulic push rod.

6. the internal expanding sleeve device of mechanical equipment coupling transmission according to claim 1 or 3, characterized in that: the positions of the mounting holes of the base (13) and the buckle (4) are consistent.

7. the method for assembling and using the internal expanding sleeve device of the mechanical equipment coupling transmission according to the claims 1-6, characterized in that: it comprises the following steps:

Step 1, a piston rod (14) is arranged in the wall of a sleeve (11);

Step 2, hinging two top blocks (12) on a piston rod (14) and a sleeve (11) by using a connecting rod mechanism (6);

Step 3, installing a buckle (4) to clamp the ejector block (12) so that the ejector block (12) cannot move along the axial direction;

step 4, opening the piston rod driving device (5), enabling a push rod on the piston rod driving device (5) to pull the piston rod (14) outwards, enabling the ejector block (12) to contract towards the interior of the sleeve (11), and then installing the sleeve (11) of the expansion sleeve (1) into cavities of the working machine transmission part (2) and the power machine transmission part (3);

Step 5, opening the piston rod driving device (5) to push the piston rod (14) inwards, wherein the piston rod (14) drives the connecting rod mechanism (6) to act, so that the ejector block (12) is driven to move outwards and is ejected onto the inner walls of the cavities of the working machine transmission part (2) and the power machine transmission part (3), and the power machine and the working machine are in coaxial transmission;

And 6, when the working machine runs in an overload mode, the piston rod driving device (5) pulls the piston rod (14) outwards, so that the top block (12) is separated from the working machine transmission part (2) and the power machine transmission part (3), and the working machine stops running.

Technical Field

the invention relates to the field of mechanical transmission, in particular to an inner sleeve expansion device of a mechanical equipment connecting shaft transmission device and an installation and use method.

Background

The power machine is connected with the working machine through the transmission shaft to transmit energy and drive the working machine to do work. The shaft on the power machine is called a driving shaft, and the shaft on the working machine is called a driven shaft. The driving shaft and the driven shaft are connected through a connecting device to rotate together to transmit torque. The expansion sleeve and the coupler are used as the most common connecting devices for mechanical product shafting transmission, and the material strength, the processing precision, the structural characteristics and the like of the expansion sleeve and the coupler are important factors influencing the transmission efficiency. Most of the connecting devices in the market are connected with the transmission shaft through key pins. However, since the connecting device needs to bear large torque for a long time during the operation of the equipment, the fatigue deformation of metal is easily caused, and the fatigue wear is generated between the connecting device and the transmission shaft. And further affects the service life of the connecting device, and more importantly, the operational safety of the equipment. Meanwhile, in order to ensure the connection tightness between the connecting device and the transmission shaft, the requirement on the size processing precision of the parts is very high, and the requirement on interference fit can be ensured. The assembly can be carried out only by the heating parts in an assembly mode, the heating parts cannot be in place at one time in the composition process, and the centering precision is not high. And meanwhile, great trouble is caused to the disassembly work.

disclosure of Invention

The technical problem to be solved by the invention is as follows: the inner expanding sleeve device for mechanical equipment connecting shaft transmission and the installation and use method thereof are provided to solve the problems of low transmission efficiency and inconvenient assembly and disassembly of a key pin type expanding sleeve in the prior art.

The technical scheme of the invention is as follows:

an inner expansion sleeve device for mechanical equipment connecting shaft transmission comprises a working machine transmission part, a power machine transmission part and a piston rod driving device, wherein inner expansion sleeves are sleeved on the inner walls of cavities of the working machine transmission part and the power machine transmission part; the inner expansion sleeve comprises a sleeve, a top block, a base and a piston rod; the sleeve is welded on the end face of the base; two jacking blocks are nested and installed at the radial opposite positions of the sleeve; the top block is respectively connected to the sleeve and the piston rod through more than one group of connecting rod mechanisms; the tail part of the piston rod extends out of the base and is connected to the piston rod driving device.

The connecting rod mechanism comprises a driving connecting rod and a driven connecting rod; the end heads at the two sides of the driven connecting rod are respectively hinged with the sleeve and the ejector block; one end of the driving connecting rod is hinged on the piston rod, and the other end of the driving connecting rod is hinged on the middle position of the rod body of the driven connecting rod.

two semicircular buckles are arranged on the base.

The outer surface of the top block is of an arc-shaped structure, and the diameter of the arc is equal to the inner diameters of the transmission parts of the working machine and the power machine.

The piston rod driving device is an electric push rod or a hydraulic push rod.

Mounting holes are uniformly arranged on the base and the buckles.

An assembly and use method of an inner expanding sleeve device for mechanical equipment connecting shaft transmission comprises the following steps:

step 1, a piston rod is arranged in the wall of a sleeve;

step 2, hinging the two top blocks on the piston rod and the sleeve by using a connecting rod mechanism;

step 3, installing a buckle, and clamping the top block to prevent the top block from moving along the axial direction;

Step 4, opening the piston rod driving device, enabling a push rod on the piston rod driving device to pull the piston rod outwards, enabling the ejector block to contract towards the interior of the sleeve, and then installing the sleeve of the expansion sleeve into cavities of a transmission part of the working machine and a transmission part of the power machine;

Step 5, opening the piston rod driving device to push the piston rod inwards, driving the connecting rod mechanism to act by the piston rod, so as to drive the jacking block to move outwards and jack the inner wall of the cavity of the working machine transmission part and the power machine transmission part, and coaxially transmitting the power machine and the working machine;

And 6, when the working machine runs in an overload mode, the piston rod driving device pulls the piston rod outwards to enable the ejector block to be separated from the working machine transmission part and the power machine transmission part, and the working machine stops running.

The invention has the beneficial effects that:

compared with the traditional connecting device, the internal expansion sleeve device for mechanical equipment connecting shaft transmission and the installation and use method thereof have the following advantages:

1. the key pin connection is cancelled, friction transmission is changed, no key groove is weakened between the inner expansion sleeve and the transmission shaft, no relative movement is caused, and the transmission efficiency is higher. Meanwhile, abrasion cannot be generated in the working process, the service life of the inner expansion sleeve is prolonged, and the safety of equipment operation is effectively guaranteed.

2. the size machining precision of the inner expansion sleeve does not need to be too high, and the two expansion strips are driven to move relatively in the radial direction through the movement of the piston rod, so that the inner expansion sleeve is tightly propped against the inner wall of the transmission shaft. The whole process is simple and effective in assembling or disassembling, the components do not need to be heated, and the centering precision during assembling is improved.

3. The piston rod driving device connected with the piston rod is arranged outside the device, so that the device can be quitted from the connection state when the device is overloaded during operation, and the safety of the device in operation can be protected.

Drawings

FIG. 1 is a schematic view of an assembly structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the expansion sleeve A-A of the present invention;

FIG. 3 is a schematic structural view of the sleeve and base of the present invention;

FIG. 4 is a schematic structural diagram of a top block of the present invention;

Fig. 5 is a schematic view of the piston rod structure of the present invention.

Detailed Description

as shown in fig. 1, an internal expanding sleeve device for mechanical equipment connecting shaft transmission comprises an internal expanding sleeve 1, a working machine transmission part 2, a power machine transmission part 3, a buckle 4, a piston rod driving device 5, a sleeve 11, a top block 12, a base 13 and a piston rod 14; the sleeve 11 is a tubular structure, and a rectangular opening is arranged along the radial direction of the sleeve 11 to facilitate the installation of the top block 12. A pin hole and an installation hole are drilled in the pipe body of the sleeve 11, and the pin hole is used for installing the sleeve 11 and a pin 62 of the link mechanism 6; the mounting hole is conveniently reserved when mounting the piston rod 14 and the linkage 6.

as shown in fig. 3, the sleeve 11 is welded to a base 13, and the base 13 has a circular structure, and is drilled with a mounting hole of a piston rod 14 at the center. Bolt mounting holes are uniformly drilled along the periphery of the mounting holes and are used for fixedly mounting the expansion sleeve 1 on a working machine or a power machine. Still be equipped with the spout on the face of weld of base 13 and sleeve pipe 11, the width of spout equals the width of kicking block 12 to can not be provided with the bolt mounting hole on the spout, avoid causing the interference.

As shown in fig. 4, the two top blocks 12 are totally two, the bottom of the top block 12 is clamped in the sliding groove of the base 13, and the two top blocks 12 are oppositely installed in the rectangular opening of the casing 11. The bottom of kicking block 12 still is equipped with the buckle groove, and the width in buckle groove equals the thickness of buckle 4, and the distance on buckle groove to bottom limit equals the degree of depth of spout. During installation, the buckle is exactly arranged in the buckle groove, and the transverse tension generated during the operation of the equipment is prevented from influencing the top block 12, so that the transmission effect is further influenced.

The structure of the piston rod 14 is shown in fig. 5, the piston rod is an i-shaped structure, and a pin hole is drilled in the side rod body and hinged with the top block 12 through a driving connecting rod 61 and a pin 62. The end of the piston rod 14 is preferably provided with a coupling hole for coupling to the piston rod driving means 5 for pushing the piston rod 14 outwardly or inwardly.

As shown in fig. 2, the link mechanism 6 includes a drive link 61 and a driven link 62; the two side ends of the driven connecting rod 62 are respectively hinged with the sleeve 11 and the top block 12; the driving link 61 has one end hinged to the piston rod 14 and the other end hinged to the driven link 62 at a shaft middle position. Forming a linkage 6.

the outer surface of the top block 12 is in a circular arc structure, and the diameter of the circular arc is equal to the inner diameters of the working machine transmission part 2 and the power machine transmission part 3. So as to ensure that the joint has a large enough working area and prevent the occurrence of slipping.

the piston rod driving device 5 is an electric push rod or a hydraulic push rod, and pushes the piston rod 14 to move to a specified stroke, and then the piston rod is stopped and locked, so that the top block 12 is prevented from being separated from the working machine transmission part 2 and the power machine transmission part 3

the buckle 4 is uniformly provided with mounting holes, the positions of the mounting holes are consistent with those of the mounting holes on the base 13, and the mounting holes are fixedly arranged on a working machine or a power machine together with the base 13 during mounting.

An assembly and use method of an inner expanding sleeve device for mechanical equipment connecting shaft transmission comprises the following steps:

Step 1, a piston rod 14 is arranged in the wall of a sleeve 11;

Step 2, hinging two top blocks 12 on a piston rod 14 and a sleeve 11 by using a connecting rod mechanism 6;

Step 3, installing a buckle 4, clamping the top block 12, and enabling the top block 12 not to move axially;

step 4, opening the piston rod driving device 5, enabling a push rod on the piston rod driving device 5 to pull the piston rod 14 outwards, enabling the ejector block 12 to contract towards the interior of the sleeve 11, and then installing the sleeve 11 of the expansion sleeve 1 into cavities of the working machine transmission part 2 and the power machine transmission part 3;

Step 5, opening the piston rod driving device 5 to push the piston rod 14 inwards, and driving the connecting rod mechanism 6 to act by the piston rod 14, so that the ejector block 12 is driven to move outwards and is ejected onto the inner walls of the cavities of the working machine transmission part 2 and the power machine transmission part 3, and the power machine and the working machine are in coaxial transmission;

And 6, when the working machine runs in an overload state, the piston rod driving device 5 pulls the piston rod 14 outwards to enable the top block 12 to be separated from the working machine transmission part 2 and the power machine transmission part 3, the working machine stops running, and the overload protection function is realized.