CN113175510B - A variable four-bar swing mechanism - Google Patents
A variable four-bar swing mechanism Download PDFInfo
- Publication number
- CN113175510B CN113175510B CN202110580731.8A CN202110580731A CN113175510B CN 113175510 B CN113175510 B CN 113175510B CN 202110580731 A CN202110580731 A CN 202110580731A CN 113175510 B CN113175510 B CN 113175510B
- Authority
- CN
- China
- Prior art keywords
- rod
- swing
- hinged
- lifting arm
- variable
- Prior art date
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
本发明提供一种可变四连杆摆动机构，立柱的一端与底座铰接，摆杆的一端与摆杆座的一端铰接；升降臂的一端与立柱的一侧可调节式滑动连接，升降臂的另一端与连杆的一端铰接；摆杆上滑座的一端与摆杆的一侧可调节式滑动连接，摆杆上滑座的另一端与连杆的另一端铰接；摆杆下滑座的一端与摆杆的另一侧可调节式滑动连接，摆杆下滑座的另一端与摆动动力机构的输出端铰接。本机构可将动力单元的往复直线运动转化为周期旋转运动后传递给立柱，使立柱绕固定铰接点左右往复摆动，同时通过其内部可调构件之间相对位置的局部调整来实现其自身运动轨迹的规律性的改变，满足立柱倾斜摆角同步线性调整的工艺需求。
The present invention provides a variable four-link swing mechanism, wherein one end of the column is hinged to the base, one end of the swing rod is hinged to one end of the swing rod seat; one end of the lifting arm is adjustable and slidably connected to one side of the column, and the other end of the lifting arm is hinged to one end of the connecting rod; one end of the upper slide seat of the swing rod is adjustable and slidably connected to one side of the swing rod, and the other end of the upper slide seat of the swing rod is hinged to the other end of the connecting rod; one end of the lower slide seat of the swing rod is adjustable and slidably connected to the other side of the swing rod, and the other end of the lower slide seat of the swing rod is hinged to the output end of the swing power mechanism. This mechanism can convert the reciprocating linear motion of the power unit into periodic rotational motion and then transmit it to the column, so that the column swings back and forth around the fixed hinge point, and at the same time, the regular change of its own motion trajectory is realized by local adjustment of the relative positions between its internal adjustable components, so as to meet the process requirements of synchronous linear adjustment of the column tilting angle.
Description
Technical Field
The invention relates to the technical field of steel rolling, in particular to a variable four-bar linkage swinging mechanism.
Background
In the industrial production and manufacturing process, a four-bar mechanism is often used, the existing four-bar mechanism is a fixed plane connecting bar structure, the lengths of all components in the existing four-bar mechanism and the connecting positions among the components are fixed, the regularity of the motion trail of the four-bar mechanism cannot be changed, and the technical requirement of on-site differentiation cannot be met.
Disclosure of Invention
The invention aims to provide a variable four-bar swinging mechanism, which can convert the reciprocating linear motion of a power unit into periodic rotary motion and then transmit the periodic rotary motion to an upright post in the variable four-bar swinging mechanism, so that the upright post can swing left and right in a reciprocating manner around a fixed hinge point. Meanwhile, the regular change of the motion track of the variable four-bar linkage swing mechanism is realized through the local adjustment of the relative positions of the adjustable components in the variable four-bar linkage swing mechanism, and the process requirement of synchronous linear adjustment of the tilt and swing angles of the stand columns is met.
In order to achieve the above object, the present invention provides the following technical solutions:
A variable four-bar linkage swinging mechanism comprises a stand column, a connecting rod, a swinging rod seat, a base, a swinging rod upper sliding seat, a swinging rod lower sliding seat, a lifting arm and a swinging power mechanism, wherein one end of the stand column is hinged with the base, one end of the swinging rod is hinged with one end of the swinging rod seat, one end of the lifting arm is in adjustable sliding connection with one side of the stand column, the other end of the lifting arm is hinged with one end of the connecting rod, one end of the swinging rod upper sliding seat is in adjustable sliding connection with one side of the swinging rod, the other end of the swinging rod upper sliding seat is hinged with the other end of the connecting rod, one end of the swinging rod lower sliding seat is in adjustable sliding connection with the other side of the swinging rod, and the other end of the swinging rod lower sliding seat is hinged with the output end of the swinging power mechanism.
Further, in the variable four-bar linkage swinging mechanism, the connecting rod comprises a connecting rod sleeve, two connecting rod beams and a fastening bolt, wherein the connecting rod sleeve is of a hollow box-shaped structure, the other ends of the two connecting rod beams are symmetrically inserted from two ends of the connecting rod sleeve, two groups of threaded holes are respectively formed in mirror symmetry on two sides of the connecting rod sleeve, the fastening bolt is screwed into the threaded holes and is in contact with the connecting rod beams to fixedly connect the connecting rod beams with the connecting rod sleeve, the other end of the lifting arm is hinged with one end of one connecting rod beam, the other end of the sliding seat on the swinging rod is hinged with one end of the other connecting rod beam, preferably, one ends of the two connecting rod beams are respectively hinged with the other end of the lifting arm and the other end of the sliding seat on the swinging rod by embedding a third shaft sleeve made of tin phosphor ZCuSn10P1 or tin bronze CuPb5Sn5Zn5, preferably, the connecting rod sleeve is of a hollow box-shaped structure formed by welding steel plates, and preferably, the threaded holes are of M20 type.
Further, in the variable four-bar linkage swing mechanism, the connecting rod further comprises a support, an adjusting rod and a fixing nut, wherein the support is fixedly arranged on the connecting rod beam, the fixing nut is fixedly arranged on the connecting rod sleeve, one end of the adjusting rod is in rotary fit with the support, the other end of the adjusting rod is in fit with the fixing nut, and preferably the fixing nut is a nut with the model of M36.
Further, in the above-mentioned variable four-bar linkage swing mechanism, two sets of rocker arm pull rod mechanisms are further included, each set of rocker arm pull rod mechanism includes a rocker arm pull rod, two rocker arm earrings and a rocker arm; one end of the rocker arm is hinged with the rocker arm, the other end of the rocker arm is hinged with one end of one rocker arm earring, one end of the other rocker arm earring in one set of rocker arm pull rod mechanism is hinged with the rocker arm upper sliding seat, one end of the other rocker arm earring in the other set of rocker arm pull rod mechanism is hinged with the rocker arm lower sliding seat, the rocker arm pull rod is of a synchronous rotating double-spiral structure, two ends of the rocker arm pull rod are respectively matched with the other ends of the two rocker arm earrings through fine tooth external threads in the positive and negative directions, and preferably, the other end of the rocker arm is externally connected with an extension handle.
Further, in the variable four-bar linkage swing mechanism, the swing bar is provided with symmetrically arranged T-shaped slide ways, one end of the swing bar upper sliding seat and one end of the swing bar lower sliding seat are respectively provided with T-shaped grooves, one end of the swing bar upper sliding seat and one end of the swing bar lower sliding seat are respectively connected with the T-shaped slide ways on two sides of the swing bar in a sliding mode through the T-shaped grooves, preferably, the swing bar is a symmetrical integral plate-type special-shaped component, the swing bar is formed by linear cutting of steel plates with the thickness of 55mm, and a first shaft sleeve made of bronze material is embedded in the bottom end of the swing bar and hinged with the swing bar seat.
In the variable four-bar linkage swing mechanism, the upright posts are steel rivet welding pieces of an integral frame structure, the main frame of each upright post is formed by welding two channel steel, a group of L-shaped sliding rails are arranged outside each channel steel flank, the two groups of L-shaped sliding rails are arranged in mirror symmetry with the geometric symmetry center line of the upright post, grooves on two sides of one end of each lifting arm are in sliding connection with the L-shaped sliding rails respectively, and preferably, the main frame of each upright post is formed by welding common hot-rolled channel steel.
The variable four-bar linkage swing mechanism further comprises a lifting arm winding drum, a lifting arm winding drum support, a fixed pulley support, a second speed reducing motor and a steel wire rope, wherein the fixed pulley is fixedly arranged at the top of one side of the upright post through the fixed pulley support, the lifting arm winding drum is fixedly arranged at the bottom of one side of the upright post through the lifting arm winding drum support, the output end of the second speed reducing motor is fixedly connected with the lifting arm winding drum, the lifting arm is in sliding connection with one side of the upright post, one end of the steel wire rope is fixedly connected with the lifting arm, the other end of the steel wire rope bypasses the fixed pulley and is fixedly connected with the lifting arm winding drum, preferably, the lifting arm winding drum is of a double-wing-edge structure with a large axial width, one end of the lifting arm winding drum is fixedly connected with the output end of the second speed reducing motor, two ends of the lifting arm winding drum are rotatably connected with the lifting arm winding drum support through bronze material sliding bearing sleeves in the lifting arm winding drum support, the fixed pulley is rotatably connected with the fixed pulley winding drum support through bronze material sliding bearing sleeves in the fixed pulley support, and the fixed pulley is preferably provided with a steel wire rope with a diameter of 6mm.
In the variable four-bar linkage swinging mechanism, the number of the steel wire ropes is two, the two steel wire ropes are arranged on two sides of the geometric symmetry axis of the lifting arm in a mirror symmetry mode, and the two steel wire ropes are wound and fixed on two ends of the lifting arm winding drum after bypassing the fixed pulleys.
Further, in the variable four-bar linkage swing mechanism, the variable four-bar linkage swing mechanism further comprises a set screw, wherein the set screw penetrates through one end of the lifting arm and one side of the upright post to fixedly connect the lifting arm and the upright post.
Further, in the above-mentioned variable four-bar linkage swing mechanism, the swing mechanism further comprises a third hinge base, the third hinge base is fixedly arranged on the base, one end of the upright post is hinged with the third hinge base, the output end of the swing power mechanism is hinged with the other end of the swing rod lower sliding seat through a swing cylinder earring, the bottom end of the swing power mechanism is hinged with the base, and preferably, the swing power mechanism is independently controlled by a single cylinder and a single air channel.
Analysis shows that the embodiment of the invention discloses a variable four-bar linkage swinging mechanism, which realizes the following technical effects:
The variable four-bar swinging mechanism is formed by combining a swinging rod, a connecting rod, a stand column and the like, and can convert the reciprocating linear motion of a power unit into periodic rotary motion and then transmit the periodic rotary motion to the stand column, so that the reciprocating swing mechanism can swing left and right around a fixed hinge point, namely the whole variable four-bar swinging mechanism can drive the connecting rod and the stand column to regularly perform fixed track motion on the premise that the swinging rod driven by a swinging cylinder is a driving member, and the inclination angle of the vertical direction of the stand column is changed in real time. Meanwhile, the regular change of the motion track of the variable four-bar linkage swing mechanism is realized through the local adjustment of the relative positions of the adjustable components in the variable four-bar linkage swing mechanism, and the process requirement of synchronous linear adjustment of the tilt and swing angles of the stand columns is met.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. Wherein:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a structure of a swing link according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a cross-sectional view taken along the direction B-B in FIG. 2;
FIG. 5 is a cross-sectional view taken along the direction C-C in FIG. 2;
FIG. 6 is a cross-sectional view taken along the direction D-D in FIG. 2;
FIG. 7 is a schematic view of a structure of a connecting rod according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view taken along the direction A-A in FIG. 7;
FIG. 9 is a schematic view showing a structure of a vertical column according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of the movement of an embodiment of the present invention;
FIG. 11 is a schematic diagram of the motion of a rocker arm pull rod mechanism in an embodiment of the present invention;
FIG. 12 is a schematic view of a link sleeve according to an embodiment of the present invention;
FIG. 13 is a schematic view showing a structure of an adjusting lever according to an embodiment of the present invention;
FIG. 14 is a front view of a swing link according to an embodiment of the present invention;
FIG. 15 is a top view of a swing link according to an embodiment of the invention;
FIG. 16 is a schematic view of a rocker arm according to an embodiment of the present invention;
FIG. 17 is a schematic view of a rocker arm ear in accordance with an embodiment of the present invention;
FIG. 18 is a schematic view of a rocker arm pull rod according to an embodiment of the present invention;
FIG. 19 is a schematic view of a fixed pulley according to an embodiment of the present invention;
FIG. 20 is a front view of a carriage on a swing link in accordance with one embodiment of the invention;
FIG. 21 is a top view of a swing link carriage according to an embodiment of the present invention;
FIG. 22 is a left side view of a carriage on a swing link in accordance with one embodiment of the invention;
FIG. 23 is a front view of a swing link lower carriage according to an embodiment of the present invention;
FIG. 24 is a top view of a swing link lower carriage according to an embodiment of the present invention;
FIG. 25 is a left side view of a swing link lower carriage according to an embodiment of the present invention;
FIG. 26 is a front view of a riser in an embodiment of the invention;
FIG. 27 is a left side view of a riser in an embodiment of the invention;
FIG. 28 is a top view of a column according to an embodiment of the present invention;
FIG. 29 is a front view of a lift arm according to an embodiment of the present invention;
FIG. 30 is a top view of a lift arm according to one embodiment of the present invention;
Fig. 31 is a left side view of a lifting arm in an embodiment of the invention.
Reference numerals illustrate:
11-swinging cylinder, 111-swinging cylinder earring, 1111-second pin, 12-first hinge seat, 13-second hinge seat, 14-first pin, 15-base, 31-first gear motor, 33-lateral adjustment screw, 34-lateral adjustment nut, 35-swing frame, 36-longitudinal adjustment nut, 37-longitudinal adjustment screw, 39-ejector pin, 392-inclined slide, 393-ejector pin frame, 394-L slide, 41-swing rod, 411-first shaft sleeve, 412-swing rod seat, 413-sixth pin, 414-swing rod upper slide, 4141-seventh pin, 4142-second shaft sleeve, 415-swing rod lower slide, 4151-slide bolt, 42-swing rod, 421-eighth pin, 422-swing rod earring, 423-swing rod pull rod, 424-ninth pin, 43-link, 431-link beam, 432-support, 433-adjusting rod, 37-sleeve, 4341-set bolt, 435-third shaft sleeve, 51-tenth pin, 44-upright post, 441-eleventh pin, 45-third arm, 45-set wire rope, 434-lower slide, 4151-slide, 42-swing rod, 421-eighth pin, 422-swing rod, 423-seat, 45-swing rod, and roller, 455-lift pulley, 453-lift roller, and roller.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments. The examples are provided by way of explanation of the invention and not limitation of the invention. Indeed, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield still a further embodiment. Accordingly, it is intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and their equivalents.
In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "connected," "connected," and "disposed" as used herein are to be construed broadly, and may be, for example, fixedly connected or detachably connected, directly connected or indirectly connected through intermediate members, or may be a wired electrical connection, a radio connection, or a wireless communication signal connection, as will be understood by those skilled in the art, depending on the particular meaning of the terms.
One or more examples of the invention are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the invention. As used herein, the terms "first," "second," "third," and "fourth," etc. are used interchangeably to distinguish one component from another and are not intended to represent the location or importance of the individual components.
As shown in fig. 1 to 31, according to an embodiment of the present invention, there is provided a variable four-bar swinging mechanism including a column 44, a link 43, a swing link 41, a swing link seat 412, a base 15, a swing link upper slider 414, a swing link lower slider 415, a lifting arm 45, and a swing power mechanism, one end of the column 44 is hinged to the base 15, one end of the swing link 41 is hinged to one end of the swing link seat 412, one end of the lifting arm 45 is slidably connected to one side of the column 44, the other end of the lifting arm 45 is hinged to one end of the link 43, one end of the swing link upper slider 414 is slidably connected to one side of the swing link 41, the other end of the swing link upper slider 414 is hinged to the other end of the link 43, one end of the swing link lower slider 415 is slidably connected to the other side of the swing link 41, and the other end of the swing link lower slider 415 is hinged to an output end of the swing power mechanism.
In the above embodiment, the variable four-bar linkage swing mechanism is a typical planar four-bar linkage mechanism in mechanical design, and is mainly formed by combining a stand column 44, a third hinge seat 442, a connecting rod 43, a swing rod 41 and a swing rod seat 412, wherein the third hinge seat 442 is fixedly arranged on the base 15, one end of the stand column 44 is rotationally hinged with the third hinge seat 442, the abscissa and the ordinate of a hinge pair are both bi-directionally fixed and non-adjustable, and two ends of the connecting rod 43 are respectively provided with a group of revolute pairs which are rotationally hinged with the stand column 44 and the swing rod 41. Unlike a common planar four-bar mechanism, the swing rod seat 412 hinged to the swing rod 41 of the variable four-bar mechanism can be connected with an external mechanism to change its own ordinate and abscissa in real time, thereby changing the geometric motion track of the swing rod 41 and finally affecting the vertical inclination angle of the upright post 44. The variable four-bar swinging mechanism can convert the reciprocating linear motion of the swinging power mechanism into periodic rotary motion and then transmit the periodic rotary motion to the upright post 44, so that the reciprocating linear motion can swing left and right around a fixed hinge point, namely the whole variable four-bar swinging mechanism can drive the connecting rod 43 and the upright post 44 to regularly perform fixed track motion on the premise that the swinging rod 41 driven by the swinging power mechanism is a driving component, and therefore the inclination angle of the upright post 44 in the vertical direction is changed in real time. Meanwhile, one end of the lifting arm 45 is in adjustable sliding connection with one side of the upright post 44, the other end of the lifting arm 45 is hinged with one end of the connecting rod 43, one end of the swing rod upper sliding seat 414 is in adjustable sliding connection with one side of the swing rod 41, the other end of the swing rod upper sliding seat 414 is hinged with the other end of the connecting rod 43, one end of the swing rod lower sliding seat 415 is in adjustable sliding connection with the other side of the swing rod 41, thus the relative positions among the upright post 44, the connecting rod 43 and the swing rod 41 can be adjusted, the regular change of the motion trail of the swing rod upper sliding seat is realized through the local adjustment of the relative positions among adjustable components in the variable four-connecting-rod swing mechanism, and the process requirement of synchronous linear adjustment of the inclination swing angle of the upright post 44 is met.
As shown in fig. 1 and 10, the variable four-bar linkage swing mechanism is a typical planar four-bar linkage mechanism in mechanical principles, the upright post 44 is fixedly hinged with the third hinged support 442 fixed on the base 15 through an eleventh pin shaft 441 to form a level I mechanism with a spatial degree of freedom of 1 and capable of swinging left and right, the connecting rod 43 and the swinging rod 41 are movably hinged through an inner pair (a seventh pin shaft 4141) to jointly form a level II rod group comprising 2 outer pairs, 1 inner pair and a spatial degree of freedom of 0, one of the 2 outer pairs comprising the level II rod group is movably hinged with the swinging rod seat 412 through a sixth pin shaft 413, and the other outer pair is movably hinged with the level I mechanism of the next stage, namely the upright post 44, to jointly form a level II mechanism assembly which is flexibly hinged with 1 level I mechanism and 1 level II rod group and regularly moves. The variable four-bar swinging mechanism comprises 3 free movable components (upright 44, connecting rod 43 and swinging rod 41) and 4 groups of low-rotation pairs (sixth pin shaft 413, seventh pin shaft 4141, tenth pin shaft 4351 and eleventh pin shaft 441), wherein the spatial movement freedom degree is F=3n-2 PL-PH= 3*3-2 x 4-0=1, and the limiting requirement of the mechanism on the number of the spatial freedom degrees of a prime mover in mechanical design is completely met, so that the whole variable four-bar swinging mechanism can drive the connecting rod 43 and the upright 44 to regularly perform fixed track movement on the premise that the swinging rod 41 driven by a swinging power mechanism is an active component, thereby changing the inclination angle of the upright 44 in the vertical direction in real time.
Preferably, as shown in fig. 1, 7, 8 and 12, in one embodiment of the present invention, the connecting rod 43 includes a connecting rod sleeve 434, two connecting rod beams 431 and a fastening bolt 4341, the connecting rod sleeve 434 is of a hollow box structure, the other ends of the two connecting rod beams 431 are symmetrically inserted from two ends of the connecting rod sleeve 434, two groups of threaded holes are respectively formed in mirror symmetry on two sides of the connecting rod sleeve 434, the fastening bolt 4341 is screwed into the threaded holes and is in contact with the connecting rod beams 431 to fixedly connect the connecting rod beams 431 with the connecting rod sleeve 434, the other ends of the lifting arm 45 and the other ends of the swing rod upper slide 414 are respectively hinged with one ends of the two connecting rod beams 431, preferably, one ends of the two connecting rod beams 431 are respectively hinged with the other ends of the lifting arm 45 and the other ends of the swing rod upper slide 414 by embedding a third sleeve 435 made of tin-zinc-lead bronze material, the connecting rod sleeve 434 is of a hollow box structure formed by welding steel plates, and the threaded holes are preferably internal threads of model M20.
In the above embodiment, the connecting rod 43 adopts a combined type sleeved split structural design, and the main structure of the connecting rod 43 is formed by inserting and assembling two groups of connecting rod beams 431 with completely identical structures and symmetrically arranged into the connecting rod sleeve 434 from two ends respectively. The link sleeve 434 is welded in a hollow box configuration from steel plate. The two side steel plates of the connecting rod sleeve 434 are respectively provided with 2 groups of internal threads of M20 in mirror symmetry, and the connecting rod beam 431 and the connecting rod sleeve 434 are fixedly connected into a three-in-one integral rigid member by the clamping force of 2 groups of fastening bolts 4341 which are screwed with the internal threads. The third shaft sleeve 435 made of tin-zinc-lead bronze is embedded and arranged on the connecting rod beam 431 and is respectively movably hinged with the lifting arm 45 and the upper sliding seat 414 of the swinging rod, and the upper sliding seat 414 of the swinging rod and the lifting arm 45 are respectively adjustable sliding revolute pairs on the swinging rod 41 and the upright post 44.
Preferably, as shown in fig. 13, in one embodiment of the present invention, the link further comprises a support 432, an adjusting lever 433 and a fixing nut, wherein the support 432 is fixedly provided on the link beam 431, the fixing nut is fixed on the link sleeve 434, one end of the adjusting lever 433 is rotatably engaged with the support 432, and the other end of the adjusting lever 433 is engaged with the fixing nut, and preferably the fixing nut is a nut of model M36. In order to facilitate the adjustment of the matched telescopic length of the two sets of connecting rod beams 431 in the connecting rod sleeve 434, and change the geometric parameters of the longitudinal length of the connecting rod 43, thereby adjusting the motion trail thereof and finally affecting the vertical inclination angle of the upright post 44, the invention is characterized in that the connecting rod 43 is specially provided with two sets of adjusting mechanisms, the support 432 adopts a split type up-down split structure design scheme, the lower half part is fixedly welded on the connecting rod beams 431, the support 432 is rotationally matched with one end of the adjusting rod 433 through a convex-concave table in the support 432, and receives axial pushing or pulling force, where the axial section of one end of the adjusting rod 433 is concave, i.e. a groove is provided at a certain distance from the end surface of one end of the adjusting rod 433, and correspondingly, a protrusion is provided in a through hole formed between the upper half and the lower half of the support 432, i.e. a convex-concave table is formed, and the protrusion is matched with the groove of one end of the adjusting rod 433 to realize the rotation matching of one end of the adjusting rod 433 and the support 432. The other end of the adjusting rod 433 is screwed with a nut of the M36 fixed on the connecting rod sleeve 434, and the connecting rod beam 431 can conveniently and rapidly freely stretch out and draw back in the connecting rod sleeve 434 by axial pushing or pulling force transmitted by rotation of the adjusting rod 433, and the connecting rod beam 431 is locked and positioned by the fastening bolt 4341 after reaching the expected adjusting position. The two sets of adjusting rods 433 are driven manually, can respectively and independently act, can be adjusted simultaneously in a matching way, and can be flexibly operated according to the actual requirements of the site. Therefore, compared with other traditional fixed plane connecting rod structural designs, the telescopic split plug-in connecting rod scheme is one of the outstanding inventions of the variable four-connecting rod swinging mechanism.
Preferably, as shown in fig. 16 to 25, in one embodiment of the present invention, the swing arm pull rod mechanism further comprises two sets of swing arm pull rod mechanisms, each set of swing arm pull rod mechanism comprises a swing arm pull rod 423, two swing arm ear rings 422 and a swing arm 42, one end of the swing arm 42 is hinged with the swing arm 41, the other end of the swing arm 42 is hinged with one end of one swing arm ear ring 422, one end of the other swing arm ear ring 422 in one set of swing arm pull rod mechanism is hinged with the swing arm upper sliding seat 414, one end of the other swing arm ear ring 422 in the other set of swing arm pull rod mechanism is hinged with the swing arm lower sliding seat 415, the swing arm pull rod 423 is of a synchronous rotating double-screw structure, two ends of the swing arm pull rod 423 are respectively matched with the other ends of the two swing arm ear rings 422 by adopting fine external threads in the positive and negative directions, and preferably, the other end of the swing arm 42 is externally connected with an extension handle. One end of a rocker arm 42 in the rocker arm pull rod assembly is hinged with the rocker arm 41, the other end is hinged with a rocker arm earring 422, and an extension handle is designed at the top of the other end, which is equivalent to a labor-saving lever and is convenient for manual operation. The rocker arm pull rod 423 adopts a synchronous rotating double-spiral structure design, and both ends respectively adopt fine external threads in the positive and negative rotation directions to be respectively in rotary fit with two sets of rocker arm ear rings 422 hinged on the rocker arm 42 and the rocker arm upper slide seat 414, when the rocker arm pull rod 423 is rotated in the positive direction or the negative direction, the plane straight line distance between the central points of two hinged revolute pairs on the rocker arm 42 and the rocker arm upper slide seat 414 can be correspondingly prolonged or shortened, so that the problem that the adjustment sliding travel distance of the rocker arm upper slide seat 414 is short due to the limitation of the swing inclination angle of the rocker arm 42 is compensated, and the adjustment range is enlarged. Preferably, in one embodiment of the present invention, the swing mechanism further comprises a swing cylinder ear 111, and the output end of the swing power mechanism is hinged with the other end of the swing rod lower slide 415 through the swing cylinder ear 111. The swing rod lower sliding seat 415 adopts the completely same swing rod pull rod assembly structure to manually adjust the space coordinates of the swing cylinder earrings 111, is used for compensating the stroke of the swing cylinder 11 in the swing power mechanism, and meets the process design requirement of the swing inclination angle of the swing rod 41.
As shown in fig. 11, two sets of rotating pairs capable of sliding and adjusting longitudinally, namely a second pin shaft 1111 and a seventh pin shaft 4141, are designed on the swing rod 41 body, and are respectively arranged on the swing rod lower slide seat 415 and the swing rod upper slide seat 414, and the positions of the rotating pairs are finely adjusted through the swing rod rocker pull rod mechanism, so that the horizontal coordinates and the vertical coordinates of the rotating pairs are changed, and the track parameters of the connecting rod 43 and the swing cylinder 11 are changed, so that the overall movement track of the whole variable four-connecting rod swing mechanism is affected. Structurally, the upper and lower rocker arm pull rod mechanisms matched with the upper rocker arm slide seat 414 and the lower rocker arm slide seat 415 are designed in the same structure, and the only difference is that the length of the rocker arm pull rod 423 is slightly different. The rocker arm pull rod mechanism also adopts a plane multi-rod mechanism design scheme of combining the I-stage mechanism and the II-stage rod group in the mechanical principle design science, the rocker arm 42 is hinged with the rocker arm 41 body through an eighth pin shaft 421 and can swing left and right to form the I-stage mechanism, the rocker arm ear 422 and the rocker arm pull rod combination body form the II-stage rod group comprising two movable components (the rocker arm upper slide seat 414 or the rocker arm lower slide seat 415 and the rocker arm ear 422 and the rocker arm pull rod combination body) through a ninth pin shaft 424 (the inner pair of the II-stage rod group) and the rocker arm upper slide seat 414 or the rocker arm lower slide seat 415, and 3 low pairs (2 rotation low pairs formed by the eighth pin shaft 421 and the ninth pin shaft 424 +1 movement low pair formed by the rocker arm 41 and the rocker arm upper slide seat 414 or the rocker arm lower slide seat 415). The level I mechanism and the level II lever group are connected through the eighth pin 421 to form a rocker arm pull rod mechanism, the design of the internal degree of freedom is calculated as f=3n-2pl-ph= 3*3-2×4-0=1, the degree of freedom requirement of the plane connecting rod motion design is met, and the rocker upper slide seat 414 or the rocker lower slide seat 415 can regularly slide linearly under the condition that the rocker arm 42 swings, so that the plane position parameter coordinates of the seventh pin 4141 and the second pin 1111 are changed.
Preferably, as shown in fig. 2 to 6, 14 and 15, in one embodiment of the present invention, the swing rod 41 is provided with symmetrically arranged T-shaped slides, one end of the swing rod upper sliding seat 414 and one end of the swing rod lower sliding seat 415 are respectively provided with T-shaped grooves, one end of the swing rod upper sliding seat 414 and one end of the swing rod lower sliding seat 415 are respectively in sliding connection with the T-shaped slides on two sides of the swing rod 41 through the T-shaped grooves, preferably, the swing rod 41 is a symmetrical integral plate-type special-shaped member, the swing rod 41 is formed by linear cutting of a steel plate with the thickness of 55mm, and a first shaft sleeve 411 made of bronze material is embedded at the bottom end of the swing rod 41 and hinged with the swing rod seat 412. The swing rod 41 is assembled as an adjustable three-pair component of a T-shaped slide way which is vertically symmetrically arranged, and is mainly formed by combining the swing rod 41, a swing rod upper sliding seat 414, a swing rod lower sliding seat 415 and an upper swing rod pull rod 423 and a lower swing rod pull rod 423 which are respectively independent relatively, wherein the swing rod 41 comprises two groups of manual sliding adjustment coordinate revolute pairs and one group of automatic linear mechanical adjustment coordinate parameter revolute pairs. The swing rod 41 is an integral plate type special-shaped component with a symmetrical structure, is formed by adopting 55mm thick steel plate wire cutting, is embedded with a first shaft sleeve 411 made of bronze material at the bottom end, is fixedly hinged with a swing rod seat 412, and the swing rod seat 412 is connected with an external mechanism to change the coordinates of the swing rod 41 and adjust the motion trail of the swing rod 41. The bottom of the swing rod upper sliding seat 414 is provided with a T-shaped groove, can be sleeved on the swing rod 41 and can slide on a T-shaped slideway of the swing rod 41 in a reciprocating and free mode. The top of the swing rod upper sliding seat 414 is provided with two groups of rotating hinge pairs, one group is used for hinging the connecting rod 43 and transmitting the power of the swing rod 41, the other group is hinged with the swing arm ear 422 and is connected with the swing arm 42 through the swing arm pull rod 423 which is rotatably matched with the swing arm ear 422, so as to form a complete four-connecting-rod adjusting mechanism which is used for adjusting the space coordinate parameters of the tail end hinge pair of the connecting rod 43 and changing the movement track of the connecting rod 43.
The swing rod seat 412 in the present variable four-bar linkage swing mechanism can be connected to an external mechanism to change its own ordinate and abscissa in real time, thereby changing the geometric motion track of the swing rod 41 and finally affecting the vertical inclination angle of the upright post 44. Preferably, as shown in fig. 1, in one embodiment of the present invention, a sliding screw adjusting mechanism is hinged below the swing rod seat 412, the sliding screw adjusting mechanism comprises a sliding screw mechanism, a wedge type sliding mechanism, a push rod frame 393 and a locking bolt, the sliding screw mechanism comprises a first gear motor 31, a transverse adjusting nut 34 and a transverse adjusting screw rod 33, the wedge type sliding mechanism comprises a swing frame 35, a longitudinal adjusting nut 36, a longitudinal adjusting screw rod 37, a inclined slide 392 and a push rod 39, an output end of the first gear motor 31 is fixedly connected with one end of the transverse adjusting screw rod 33, the transverse adjusting nut 34 is in threaded connection with the transverse adjusting screw rod 33, the bottom of the swing frame 35 is hinged with an upper plane of the transverse adjusting nut 34, the longitudinal adjusting screw rod 37 is rotatably arranged at the inner side of the swing frame 35, the vertical adjusting nut 36 is in threaded connection with the vertical adjusting screw rod 37, the bottom of the vertical adjusting screw rod 37 is hinged with the upper plane of the transverse adjusting nut 34, one end of the inclined slide 392 is hinged with the vertical adjusting screw nut 36, the other end of the inclined slide 392 is hinged with the upper plane of the transverse adjusting nut 34, one end of the ejector rod 39 is hinged with the inclined slide 392, the other end of the ejector rod 39 is fixedly connected with the swing rod seat 412, a sleeve is arranged at the top of the ejector rod frame 393, the bottom of the L slide 394 is fixedly arranged, the bottom of the ejector rod frame 393 is in sliding connection with the top of the L slide 394, a locking bolt is arranged between the bottom of the ejector rod frame 393 and the top of the L slide 394, and the locking bolt is used for fixedly connecting the bottom of the ejector rod frame 393 with the top of the L slide 394 and the ejector rod 39 is arranged in the sleeve. The first gear motor 31 drives the transverse adjusting screw 33 to rotate circumferentially, so that the transverse adjusting nut 34 moves transversely and axially synchronously, the inclined slide way 392 moves axially synchronously, the ejector rod 39 moves vertically and synchronously, the ordinate of the swing rod seat 412 is adjusted, when the ejector rod frame 393 slides on the L slide way 394, the ejector rod 39 can be moved left and right to change the abscissa of the ejector rod 39, the abscissa of the swing rod seat 412 can be adjusted, and after adjustment is finished, the bottom of the ejector rod frame 393 can be fixedly connected with the top of the L slide way 394 through the locking bolt. The sliding screw adjusting mechanism can adjust the abscissa and the ordinate of the online real-time swing rod seat 412, and finally adjust the inclination angle of the upright post 44 in real time, thereby meeting the process requirements of on-site differentiation. In practical application, the first gear motor 31 and the swinging cylinder 11 can be independently adjusted, and can also be matched to act according to a certain rule to realize online real-time fine adjustment by means of the logic programming of an electric control system.
Preferably, as shown in fig. 9 and fig. 26 to fig. 31, in one embodiment of the present invention, the upright post 44 is a steel rivet welding member with an integral frame structure, the main frame of the upright post 44 is formed by welding two channel steel, each of the side wings of the channel steel is provided with a group of L-shaped slide rails, the two groups of L-shaped slide rails are arranged in mirror symmetry with the geometric symmetry center line of the upright post 44, the grooves on two sides of one end of the lifting arm 45 are respectively connected with the L-shaped slide rails in a sliding manner, preferably, the main frame of the upright post 44 is formed by welding common hot-rolled channel steel, and preferably, the main frame of the upright post 44 is formed by welding 180 hot-rolled channel steel. The upright post 44 is a core component in the whole variable four-bar linkage swinging mechanism, the upright post 44 is a steel rivet welding piece with an integral frame structure, the upright post 44 body is formed by welding common hot-rolled channel steel, and 1 group of rotary hinge pairs are designed at the bottom and can swing left and right around a third hinge seat 442 fixed on the base 15. The side wings of the main frame channel steel of the upright post 44 are fixedly welded with a group of L-shaped sliding rails respectively, are arranged in mirror symmetry with the geometric symmetry center line of the upright post 44 and are matched with the concave-convex grooves of the base of the lifting arm 45, so that the lifting arm 45 can slide up and down along the side wings of the upright post 44 in a straight line, the ordinate of a tenth pin 4351 on the lifting arm 45 is changed, the movement track of a connecting rod 43 hinged with the lifting arm 45 and other components in the variable four-connecting-rod swinging mechanism is influenced, and finally the inclination swinging angle of the upright post 44 is influenced. The friction is reduced by coating lubricating grease on the matching surface between the L-shaped slide rail and the grooves on two sides of one end of the lifting arm 45, so that the lifting arm 45 can slide up and down along the L-shaped slide rail conveniently.
Preferably, as shown in fig. 3 to 5, 9 and 19, in one embodiment of the present invention, the elevator further comprises an elevator arm drum 455, a fixed pulley 458, an elevator arm drum support 456, a fixed pulley support 457, a second gear motor 454 and a wire rope 452, wherein the fixed pulley 458 is fixedly arranged at the top of one side of the upright post 44 through the fixed pulley support 457, the elevator arm drum 455 is fixedly arranged at the bottom of one side of the upright post 44 through the elevator arm drum support 456, the output end of the second gear motor 454 is fixedly connected with the elevator arm drum 455, the elevator arm 45 is slidingly arranged at one side of the upright post 44, one end of the wire rope 452 is fixedly connected with the elevator arm 45, the other end of the wire rope 452 bypasses the fixed pulley 458 and the elevator arm drum 455, preferably, the elevator arm drum 455 is in a double-wing edge structure with a large axial width, one end of the elevator arm drum 455 is fixedly connected with the output end of the second gear motor 454, two ends of the elevator arm drum 455 are rotatably connected with the elevator arm support 456 through bronze material sliding bearing sleeves 456 in the elevator arm drum support 456, the fixed pulley 458 is rotatably connected with bronze material sliding bearing sleeves in the elevator arm support sleeves in the fixed pulley support sleeves through the fixed pulley support sleeves, and the bronze material sliding bearing sleeves in the elevator arm support sleeves 452 is rotatably connected with a fixed pulley groove with a diameter of a fixed pulley groove of a 6, and a diameter of a groove is 6 is formed.
In the above embodiment, the vertical linear sliding of the lifting arm 45 is realized by the lifting arm winding drum 455 and the fixed pulley 458 which are arranged on the side wings of the main frame channel steel of the upright post 44, and the programming of the power control system PLC and the control cooperation of the electromagnetic induction switch can realize the synchronous automatic linear fine adjustment of the whole process, and automatically adjust the tilting angle of the upright post 44 in the running process of the equipment. The lifting arm winding drum 455 is designed into a double-flange structure with a large axial width, one end of the lifting arm winding drum is supported by the second gear motor 454, the other end of the lifting arm winding drum is antifriction by a bronze sliding bearing sleeve on the lifting arm winding drum support 456, and the fixed pulley 458 is antifriction by the bronze sliding bearing sleeve with the same material, and a groove is designed on the pulley to prevent the steel wire rope 452 from falling off. Fixed pulley 458 passes through fixed pulley support 457 welded fastening at the top of stand 44 main frame channel-section steel flank, and lift arm reel 455 passes through lift arm reel support 456 welded fastening in the bottom of stand 44 main frame channel-section steel flank, and the lift arm 45 that can slide from top to bottom is settled at the middle part of stand 44 main frame channel-section steel flank. When the lifting arm winding drum 455 rotates forward and backward under the driving of the second reducing motor 454, the steel wire rope 452 fixedly connected to the surface thereof can correspondingly extend or shorten, and the lifting arm 45 connected with the steel wire rope 452 can slide up and down in a straight line through the load transmission of the fixed pulley 458 and the change of the force direction, so that the ordinate of the lifting arm winding drum is changed in real time, and the online synchronous fine adjustment is realized. The lowering action of the lift arm 45 is mainly by gravity and the lifting action is mainly by the lifting force of the lift arm spool 455. Preferably, in one embodiment of the present invention, a set screw 453 is further included, and the set screw 453 passes through one end of the lifting arm 45 and one side of the upright 44 to fixedly connect the lifting arm 45 and the upright 44. In addition to the on-line linear fine adjustment of the lifting arm 45, the lifting arm 45 may also be fixed on the L-shaped slide rail of the upright post 44 by the tightening force of its own set screw 453, so as to form a set of fixed rotation hinges, and the specific adjustment mode may be selected according to the actual working condition of the site. The first gear motor 31 and the second gear motor 454 can be independently adjusted, and can also cooperate to act according to a certain rule after being programmed by means of an electric control PLC logic, so that the online real-time fine adjustment of parameters of 2 local key points is realized.
Preferably, as shown in fig. 9, in one embodiment of the present invention, the number of the steel wire ropes 452 is two, the two sets of steel wire ropes 452 are fixedly arranged at two sides of the geometric symmetry axis of the lifting arm 45 in a mirror symmetry manner, and the two sets of steel wire ropes 452 are respectively wound and fixed at two ends of the lifting arm winding drum 455 after bypassing the fixed pulley 458. In order to facilitate winding of the steel wire rope 452 and prevent the lifting arm 45 from sliding up and down due to unbalanced load, the invention adopts a double steel wire rope synchronous lifting scheme, correspondingly, the number of the fixed pulleys 458 and the fixed pulley support 457 is two, and the two fixed pulleys 458 can improve the stress environment of the lifting arm 45 and prevent the unbalanced load from influencing the flexibility of the vertical sliding. Two sets of steel wire ropes 452 with identical structures are arranged on two sides of the geometric symmetry axis of the lifting arm 45 in a mirror symmetry mode on site, are firmly connected with the geometric symmetry axis, uniformly wind on two ends of the lifting arm winding drum 455 after bypassing the fixed pulleys 458, synchronously extend or shorten by means of rotation of the lifting arm winding drum 455, and drive the lifting arm 45 to lift.
The swing power mechanism adopts independent control of a single cylinder and a single gas circuit, is controlled by a field self-independent pneumatic electromagnetic reversing valve, a flow regulating valve and a remote electric control system PLC of an operating platform, and is assisted by a plurality of field-arranged electromagnetic sensors, so that the swing cylinder 11 moves to fulfill the action decomposition process requirement of a complex motion track flow. The swing cylinder 11 adopts a portable quick dismounting structural design scheme, the tail part of the swing cylinder 11 is connected with the first hinged support 12 through bolts, the swing cylinder 11 adopts a bolt connection or welding fixation mode to enable the second hinged support 13 to be spatially fixed with the base 15, the first hinged support 12 and the second hinged support 13 form a full-spatially fixed hinge pair through the cooperation of the first pin shaft 14 of the intermediate component and the centripetal joint bearing, the movement freedom degrees in the horizontal plane of the swing cylinder 11 in the two directions of the transverse direction and the longitudinal direction are completely limited, only the spatial rotation freedom degrees are reserved, the Y-shaped earrings at the head part of the piston rod are hinged with the swing rod 41 through the second pin shaft 1111 to form a swing power mechanism power unit, and the swing rod 41 is driven to swing left and right around the swing rod seat 412.
In addition, the sliding friction parts related by the invention are all made of bronze materials with enough rigidity, strength, wear resistance and antifriction property, and are coated with extreme pressure lithium-based lubricating ester, so that the friction resistance is reduced, the friction power loss of the system is reduced, and the operation flexibility is improved. Considering the actual working condition of on-site high-temperature, low-speed and intermittent transmission and the good machining process performance of materials, the tin phosphor bronze ZCuSn10P1 and the tin bronze CuPb5Sn5Zn5 with good antifriction property are preferably selected, and the method has the remarkable characteristics of low hardness, high plasticity, small elastic modulus, good running-in property, good compliance and embedding property and higher compression resistance, impact load resistance and fatigue strength. The aluminum bronze ZCuAl Fe3 with higher mechanical strength and wear resistance can also be used for replacing the aluminum bronze materials, as limited by market supply and manufacturing cost. The details of the bronze spare parts are as follows, namely a first shaft sleeve 411 in a swing rod seat 412, a second shaft sleeve 4142 in a swing rod upper sliding seat 414 and a third shaft sleeve 435 in a connecting rod beam 431.
From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects that the variable four-bar linkage oscillating mechanism is formed by combining the oscillating bar 41, the connecting bar 43, the upright post 44, and the like, and can convert the reciprocating linear motion of the power unit into the periodic rotary motion and transmit the periodic rotary motion to the upright post, so that the reciprocating oscillating bar can oscillate left and right around the fixed hinging point, that is, the whole variable four-bar linkage oscillating mechanism can drive the connecting bar 43 and the upright post 44 to regularly perform the fixed track motion on the premise that the oscillating bar 41 driven by the oscillating cylinder 11 is the driving member, thereby changing the inclination angle of the upright post 44 in the vertical direction in real time. Meanwhile, the regular change of the motion track of the variable four-bar linkage swing mechanism is realized through the local adjustment of the relative positions of the adjustable components in the variable four-bar linkage swing mechanism, and the process requirement of synchronous linear adjustment of the inclination and swing angles of the stand columns 44 is met.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (17)
1. The variable four-bar swinging mechanism is characterized by comprising a stand column, a connecting rod, a swinging rod seat, a base, a swinging rod upper sliding seat, a swinging rod lower sliding seat, a lifting arm and a cylinder;
One end of the upright post is hinged with the base, and one end of the swing rod is hinged with one end of the swing rod seat;
one end of the lifting arm is in adjustable sliding connection with one side of the upright post, and the other end of the lifting arm is hinged with one end of the connecting rod;
one end of the swing rod upper sliding seat is in adjustable sliding connection with one side of the swing rod, and the other end of the swing rod upper sliding seat is hinged with the other end of the connecting rod;
one end of the swing rod lower sliding seat is in adjustable sliding connection with the other side of the swing rod, the other end of the swing rod lower sliding seat is hinged with the output end of the air cylinder, the input end of the air cylinder is hinged with the base,
The swing rod upper sliding seat and the swing rod lower sliding seat are respectively fixed on the swing rod through sliding seat bolts,
The device also comprises two sets of swing rod and rocker arm pull rod mechanisms, wherein each set of swing rod and rocker arm pull rod mechanism comprises a swing rod pull rod, two swing rod earrings and a swing rod;
One end of the rocker arm is hinged with the swing rod, and the other end of the rocker arm is hinged with one end of one rocker arm earring;
One end of the other rocker ear ring in one set of rocker arm pull rod mechanism is hinged with the rocker upper sliding seat, and one end of the other rocker ear ring in the other set of rocker arm pull rod mechanism is hinged with the rocker lower sliding seat;
The rocker arm pull rod is of a double-screw structure capable of rotating synchronously, and two ends of the rocker arm pull rod are respectively matched with the other ends of the two rocker arm earrings by adopting fine tooth external threads in the positive and negative rotation directions;
The device also comprises a set screw;
the set screw passes through one end of the lifting arm and one side of the upright post to fixedly connect the lifting arm and the upright post.
2. The variable four-bar linkage swing mechanism according to claim 1, wherein the linkage comprises a linkage sleeve, two linkage beams, and a set bolt;
the connecting rod sleeve is of a hollow box-shaped structure, and the other ends of the two connecting rod beams are symmetrically inserted from two ends of the connecting rod sleeve;
two groups of threaded holes are formed in two sides of the connecting rod sleeve in a mirror symmetry mode respectively, and the fastening bolts are screwed into the threaded holes and are in contact with the connecting rod beam so as to fixedly connect the connecting rod beam with the connecting rod sleeve;
the other end of the lifting arm is hinged with one end of one connecting rod beam, and the other end of the swing rod upper sliding seat is hinged with one end of the other connecting rod beam.
3. The variable four-bar linkage swing mechanism according to claim 2, wherein one end of each of the two link beams is embedded and installed with a third shaft sleeve made of tin phosphor bronze ZCuSn10P1 or tin bronze CuPb5Sn5Zn5 material to be hinged with the other end of the lifting arm and the other end of the swing rod upper sliding seat respectively.
4. The variable four-bar linkage swing mechanism according to claim 2, wherein the linkage sleeve is a hollow box-type structure formed by welding steel plates.
5. The variable four-bar linkage swing mechanism according to claim 2, wherein said threaded bore is an internal thread of model M20.
6. The variable four-bar linkage swing mechanism according to claim 2, wherein the linkage further comprises a support, an adjustment bar, and a fixing nut;
the support is fixedly arranged on the connecting rod beam, the fixing nut is fixedly arranged on the connecting rod sleeve, one end of the adjusting rod is in rotary fit with the support, and the other end of the adjusting rod is in fit with the fixing nut.
7. The variable four bar linkage swing mechanism according to claim 6, wherein said fixed nut is a model M36 nut.
8. The variable four-bar linkage swing mechanism according to claim 1, wherein,
The other end of the rocker arm is externally connected with an extension handle.
9. The variable four-bar linkage swing mechanism according to claim 1, wherein the swing link is provided with symmetrically arranged T-shaped slides;
The one end of pendulum rod upper slide and the one end of pendulum rod lower slide all are provided with T type recess, the one end of pendulum rod upper slide and the one end of pendulum rod lower slide respectively through T type recess with the T type slide sliding connection of pendulum rod both sides.
10. The variable four-bar linkage oscillating mechanism of claim 9, wherein the oscillating bar is a symmetrical integral plate type special-shaped member, the oscillating bar is formed by linear cutting of a steel plate with the thickness of 55mm, and a first shaft sleeve made of bronze is embedded at the bottom end of the oscillating bar and hinged with the oscillating bar seat.
11. The variable four-bar linkage swing mechanism according to claim 1, wherein the upright is a steel rivet welding piece of an integral frame structure, and the main frame of the upright is formed by welding two channel steel;
each channel steel flank is provided with a group of L-shaped sliding rails outside, the two groups of L-shaped sliding rails are arranged in mirror symmetry with the geometric symmetry center line of the upright post, and grooves on two sides of one end of the lifting arm are respectively connected with the L-shaped sliding rails in a sliding manner.
12. The variable four-bar linkage swing mechanism of claim 11, wherein the stud main frame is splice welded using conventional hot rolled channel steel.
13. The variable four-bar linkage swing mechanism according to claim 1, further comprising a lift arm spool, a lift arm spool mount, a fixed pulley mount, a second gear motor, and a wire rope;
The fixed pulley is fixedly arranged at the top of one side of the upright post through the fixed pulley support, the lifting arm winding drum is fixedly arranged at the bottom of one side of the upright post through the lifting arm winding drum support, the output end of the second speed reducing motor is fixedly connected with the lifting arm winding drum, and the lifting arm is in sliding connection with one side of the upright post;
one end of the steel wire rope is fixedly connected with the lifting arm, and the other end of the steel wire rope bypasses the fixed pulley and is fixedly connected with the lifting arm winding drum.
14. The variable four-bar linkage swing mechanism according to claim 13, wherein the lifting arm reel is of a double-flange structure with a large axial width, one end of the lifting arm reel is fixedly connected with the output end of the second gear motor, two ends of the lifting arm reel are rotatably connected with the lifting arm reel support through bronze sliding bearing sleeves in the lifting arm reel support, the fixed pulley is rotatably connected with the fixed pulley support through bronze sliding bearing sleeves in the fixed pulley support, and grooves are formed in the fixed pulley.
15. The variable four bar linkage swing mechanism of claim 13, wherein the wire rope has a diameter of 6mm.
16. The variable four-bar linkage oscillating mechanism of claim 13, wherein the number of the steel wire ropes is two;
The two sets of steel wire ropes are fixedly arranged at two sides of the geometric symmetry axis of the lifting arm in a mirror symmetry mode, and are respectively wound and fixed at two ends of the lifting arm winding drum after bypassing the fixed pulley.
17. The variable four-bar linkage swing mechanism according to claim 1, further comprising a third hinge mount fixedly disposed on the base, one end of the upright being hinged to the third hinge mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110580731.8A CN113175510B (en) | 2021-05-26 | 2021-05-26 | A variable four-bar swing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110580731.8A CN113175510B (en) | 2021-05-26 | 2021-05-26 | A variable four-bar swing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113175510A CN113175510A (en) | 2021-07-27 |
| CN113175510B true CN113175510B (en) | 2025-05-06 |
Family
ID=76927559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110580731.8A Active CN113175510B (en) | 2021-05-26 | 2021-05-26 | A variable four-bar swing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113175510B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338532B (en) * | 2022-10-17 | 2022-12-27 | 无锡鼎邦换热设备股份有限公司 | Laser cutting device and method for spiral baffle plate of shell-and-tube heat exchanger |
| CN116709627B (en) * | 2023-06-26 | 2025-09-12 | 国电投核力创芯(无锡)科技有限公司 | A stripping target for cyclotron beam extraction and a beam extraction method |
| CN116586446B (en) * | 2023-07-05 | 2025-09-19 | 山东钢铁股份有限公司 | Sizing machine, connecting rod assembly and swing rod |
| CN116637946B (en) * | 2023-07-05 | 2025-09-16 | 山东钢铁股份有限公司 | A length-fixing machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214999179U (en) * | 2021-05-26 | 2021-12-03 | 山东钢铁股份有限公司 | A variable four-link swing mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465478C (en) * | 2007-10-31 | 2009-03-04 | 常熟理工学院 | Rotation-swing stepless converter |
| CN104455267A (en) * | 2014-11-19 | 2015-03-25 | 蒋瑾 | Dynamically-adjusted hinge six-bar device |
| CN105396885B (en) * | 2015-12-07 | 2018-10-12 | 山东钢铁股份有限公司 | Steel auxiliary device and method are unloaded on a kind of cold bed |
| RU2655568C1 (en) * | 2017-04-04 | 2018-05-28 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный технический университет" | Articulation linkage with adjustable length of links |
| CN110586646B (en) * | 2019-09-30 | 2024-07-19 | 山东钢铁股份有限公司 | Low pair multi-rod mechanism rounding machine |
-
2021
- 2021-05-26 CN CN202110580731.8A patent/CN113175510B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214999179U (en) * | 2021-05-26 | 2021-12-03 | 山东钢铁股份有限公司 | A variable four-link swing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113175510A (en) | 2021-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113175510B (en) | A variable four-bar swing mechanism | |
| CN111268392B (en) | Flexible self-adaptive support robot and method | |
| CN1079923A (en) | A kind of rolling-mill housing that is used to have the conventional mill of three or more adjustable driven rolls | |
| CN211840799U (en) | Assembly type building component welding robot butt welding positioning device | |
| CN111039196B (en) | Movable counterweight device with combined shear fork of movable arm tower crane and use method of movable counterweight device | |
| CN205798002U (en) | Axially accurate positioning and there is the short stress path rolling mill of high rigidity | |
| CN111606035B (en) | Mechanical arm | |
| CN105880292A (en) | Short stress path rolling mill with precise axial positioning and high rigidity | |
| CN214999179U (en) | A variable four-link swing mechanism | |
| CN201579349U (en) | Rolling spinning roller type reinforcement bar straightening mechanism | |
| CN113198855B (en) | A swing lifting spring damping gravity billet turning machine | |
| CN110586646B (en) | Low pair multi-rod mechanism rounding machine | |
| CN108457624A (en) | Long stroke pumping unit | |
| CN115890127A (en) | Industrialized rotary nitrogen protection welding device | |
| CN210876754U (en) | A low-pair multi-bar mechanism rounding machine | |
| CN212563279U (en) | High slope down-the-hole drill removes supporting platform | |
| CN114505197A (en) | Multi freedom automatic spraying system | |
| CN109531340A (en) | A kind of mill steel ball machine | |
| CN215314738U (en) | Swing lifting type spring damping gravity billet tilter | |
| CN208203237U (en) | Long stroke pumping unit | |
| CN214888685U (en) | A sliding helical cam adjustment mechanism | |
| CN202187652U (en) | Toothed belt, double-shaft guide rod and grooved cam combined space mechanism of sliding-plug door | |
| CN212886021U (en) | Barrel interfacing apparatus | |
| CN211680842U (en) | Dismounting device suitable for left-handed and right-handed damping spring | |
| CN209615062U (en) | A kind of automatic discharge unit grinding steel ball machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |