CN109572752B - Bending structure of flexible turnout of straddle type monorail transit joint - Google Patents
Bending structure of flexible turnout of straddle type monorail transit joint Download PDFInfo
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- CN109572752B CN109572752B CN201811583271.9A CN201811583271A CN109572752B CN 109572752 B CN109572752 B CN 109572752B CN 201811583271 A CN201811583271 A CN 201811583271A CN 109572752 B CN109572752 B CN 109572752B
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- rod
- beam body
- groove
- moving rod
- straight moving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
Abstract
The invention discloses a flexible turnout bending structure of a straddle type monorail transit joint, which comprises a beam body, wherein the beam body comprises a beam main body, two parallel and opposite guide panels are respectively arranged on two sides of the beam main body, and a stabilizing panel which is positioned on the same vertical surface with the guide panels is also arranged under each guide panel; still include a plurality of flexure units of installing along roof beam body length direction interval, the flexure unit is including installing the drive assembly in roof beam body below, still includes power device and installs the executive component in the roof beam body, and power device can provide power for every drive assembly, and then makes guide panel and stable panel take place flexural deformation. Compared with the prior art, the structure disclosed by the invention has the characteristics of simple structure, reliable function and low manufacturing cost, in addition, fewer components are arranged in the beam body, the vacant space in the beam body is enlarged, and the installation and the daily maintenance of equipment are more convenient.
Description
Technical Field
The invention relates to the field of straddle type monorail traffic, in particular to a flexible turnout bending structure of a straddle type monorail traffic joint.
Background
The straddle type monorail transit system belongs to one type of urban rail transit, and has the general characteristics of strong passenger transport capacity, punctuality, rapidness, comfort, safety, space and resource saving, environmental friendliness and the like. Meanwhile, compared with other urban rail transit systems, the straddle type monorail transit system has the advantages of low noise, small turning radius, strong climbing capability, short construction period, relatively low construction cost and the like. As one of core devices of straddle type monorail traffic, straddle type monorail turnout devices play a key role in turning back lines and dispatching trains. In the field of straddle-type monorail traffic, two types of articulated turnout are currently in common use: one is a joint type turnout and the other is a joint flexible turnout. The joint type turnout is generally composed of four steel beams, is arranged in a zigzag state in a switching state, has large impact force when a train passes through the turnout, has large damage to the train and lower comfort level of passengers, and can only pass through the turnout at a lower speed.
For a flexible joint turnout, a bending device is arranged on a beam body, so that a guide panel and a stabilizing surface of the turnout beam can be deformed to form a section of transition surface similar to a circular arc, a train can pass through the turnout according to a curve, the turnout passing speed of the train is greatly improved, and the flexible joint turnout is mainly used for a main line with higher speed requirement. However, the transmission component is arranged inside the beam body in the prior art, the vacant space inside the beam body is small, and inconvenience is brought to a certain degree to the installation and daily maintenance of equipment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention discloses a flexible turnout bending structure of a straddle type monorail transit joint, which has the characteristics of simple structure, reliable function and low manufacturing cost compared with the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a flexible turnout bending structure of a straddle type monorail transit joint comprises a beam body, wherein the beam body comprises a beam main body, two parallel and opposite guide panels are respectively installed on two sides of the beam main body, and a stabilizing panel which is positioned on the same vertical surface with the guide panels is also installed under each guide panel;
the beam body is provided with a plurality of deflection units which are arranged along the length direction of the beam body at intervals, each deflection unit comprises a driving assembly arranged below the beam body and an actuating assembly arranged in the beam body, the executing component comprises an upper straight moving rod and a lower straight moving rod which are arranged along the width direction of the beam body, two ends of the upper straight moving rod respectively extend out of two sides of the beam body and are hinged with the side surface of the guide panel facing the beam body, the upper straight moving rod can swing on the horizontal plane relative to the guide panel, two ends of the lower straight moving rod respectively extend out of two sides of the beam body and are hinged with the side surface of the stabilizing panel facing the beam body, the lower straight moving rod can swing on the horizontal plane relative to the stabilizing panel, the driving component is in transmission connection with the upper direct-acting rod and the lower direct-acting rod so as to drive the upper direct-acting rod and the lower direct-acting rod to move along the width direction of the beam body simultaneously, in the moving process, the moving direction and the moving distance of the upper straight moving rod and the lower straight moving rod of each flexing unit are equal;
the bending device comprises a driving assembly, wherein the driving assembly is provided with a plurality of bending units, each bending unit comprises a beam body, the beam body is provided with an upper straight moving rod and a lower straight moving rod, the upper straight moving rod and the lower straight moving rod are respectively provided with a plurality of bending units, the bending units are respectively provided with a plurality of bending units.
Preferably, the executing component further comprises a supporting rod transversely arranged between the upper straight moving rod and the lower straight moving rod; the executing assembly further comprises an upper executing rod, the lower end of the upper executing rod is connected with the driving assembly, an upper sliding groove arranged along the length direction of the upper executing rod is formed in the upper end of the upper executing rod, an upper hinge part is fixedly arranged on the upper straight-moving rod and penetrates through the upper sliding groove in the upper end of the upper executing rod, the upper hinge part can move in the upper sliding groove along the length direction of the upper sliding groove, the position between the two ends of the upper executing rod is also hinged with the supporting rod, the driving assembly can drive the upper executing rod to swing around a hinge point of the upper executing rod hinged with the supporting rod, and therefore the upper hinge part is pushed to drive the upper straight-moving rod to move along the width direction of the beam;
the executive component further comprises a lower executive rod, the lower end of the lower executive rod is connected with the driving component, the upper end of the lower executive rod is hinged to the supporting rod, a lower sliding groove which is formed in the length direction of the lower executive rod is formed between the two ends of the lower executive rod, the lower straight-moving rod is connected with the lower executive rod through a lower hinged part in the lower sliding groove, the lower hinged part can move in the length direction of the lower sliding groove in the lower sliding groove, the driving component can drive the lower executive rod to swing around a hinged point of the lower executive rod hinged with the supporting rod, and therefore the lower straight-moving rod is driven to move in the width direction of the beam body.
Preferably, the power device comprises a power unit and a transmission shaft; the driving assembly comprises a groove cam connected with the transmission shaft, the groove cam comprises two annular grooves, the lower ends of the upper actuating rod and the lower actuating rod are respectively inserted into the two grooves, the power unit can drive the transmission shaft to rotate so as to drive the groove cam to rotate along with the transmission shaft, the distance between the lower ends of the upper actuating rod and the lower actuating rod relative to the rotating axis of the groove cam is changed under the limit driving of the grooves, and then the upper actuating rod and the lower actuating rod are driven to respectively swing around the supporting rod, so that the upper straight moving rod and the lower straight moving rod are driven to simultaneously move along the width direction of the beam body.
Preferably, the two grooves of the groove cam are respectively located on the surfaces of the two sides of the groove cam, the upper direct-acting rod and the lower direct-acting rod are respectively located on the two sides of the groove cam, the lower ends of the upper actuating rod and the lower actuating rod are respectively and fixedly provided with an inserting convex part extending towards the direction of the groove cam, and the inserting convex parts are respectively inserted into the two grooves through the inserting convex parts
Preferably, each groove of the groove cam comprises two opposite arc-shaped grooves, the radii of the two arc-shaped grooves are different, the circle centers of the two arc-shaped grooves are the rotating centers of the groove cam, and the two arc-shaped grooves are communicated through a smooth transition section; when the groove cam rotates to the linear position, the bending unit is in a linear state, the hinge point of the upper actuating rod or the lower actuating rod and the groove cam is located in one section of arc-shaped groove corresponding to the groove, when the groove rotates to the bending position, the bending unit is in a bending state, and the hinge point of the upper actuating rod or the lower actuating rod and the groove cam is located in the other section of arc-shaped groove corresponding to the groove.
Preferably, in each bending unit, the position where the supporting rod is hinged to the upper actuating rod is the same as the position where the supporting rod is hinged to the lower actuating rod, a hinge point at the upper end of the upper actuating rod and a hinge point between the upper actuating rod and the supporting rod are connected to obtain a first line segment, a hinge point between the lower actuating rod and the supporting rod and a hinge point between the lower actuating rod and the lower linear motion rod are connected to obtain a second line segment, and the first line segment and the second line segment are symmetrical about a horizontal plane where the supporting rod is located; connecting a hinge point of the upper actuating rod and the supporting rod with a hinge point at the lower end of the upper actuating rod to obtain a third line segment, connecting a hinge point of the lower actuating rod and the supporting rod with a hinge point at the lower end of the lower actuating rod to obtain a fourth line segment, wherein the third line segment and the fourth line segment are symmetrical about a vertical plane in the length direction of the beam body where the hinge point of the supporting rod and the upper actuating rod is located; projections of the two grooves of the groove cam on a vertical plane in the width direction of the beam body are centrosymmetric with respect to the rotation center of the groove cam.
Preferably, the radius of the circular arc groove of each flexing unit increases or decreases progressively along the length direction of the beam body, so that after moving to the flexing position, the moving distance of the upper straight moving rod and the lower straight moving rod of each flexing unit increases or decreases progressively along the length direction of the beam body.
Preferably, the power unit further comprises a detection device, wherein the detection device comprises a travel switch electrically connected with the power unit and a collision block rotating along with the groove cam, and when the groove cam rotates to the linear position or the deflection position, the collision block is in contact with the travel switch.
Preferably, the dust cover is further included, and the driving assembly and the power device are installed inside the dust cover.
Preferably, the power unit comprises a motor, a speed reducer is arranged between the motor and the transmission shaft, and the speed reducer is a cycloidal pin gear planetary speed reducer.
In conclusion, the invention discloses a flexible turnout bending structure of a straddle type monorail transit joint, which comprises a beam body, wherein the beam body comprises a beam main body, two guide panels which are parallel and opposite to each other are respectively arranged on two sides of the beam main body, and a stabilizing panel which is positioned on the same vertical surface with the guide panels is also arranged under each guide panel; the beam body is provided with a plurality of deflection units which are arranged along the length direction of the beam body at intervals, each deflection unit comprises a driving assembly arranged below the beam body and an actuating assembly arranged in the beam body, the executing component comprises an upper straight moving rod and a lower straight moving rod which are arranged along the width direction of the beam body, two ends of the upper straight moving rod respectively extend out of two sides of the beam body and are hinged with the side surface of the guide panel facing the beam body, the upper straight moving rod can swing on the horizontal plane relative to the guide panel, two ends of the lower straight moving rod respectively extend out of two sides of the beam body and are hinged with the side surface of the stabilizing panel facing the beam body, the lower straight moving rod can swing on the horizontal plane relative to the stabilizing panel, the driving component is in transmission connection with the upper direct-acting rod and the lower direct-acting rod so as to drive the upper direct-acting rod and the lower direct-acting rod to move along the width direction of the beam body simultaneously, in the moving process, the moving direction and the moving distance of the upper straight moving rod and the lower straight moving rod of each flexing unit are equal; the bending device comprises a driving assembly, wherein the driving assembly is provided with a plurality of bending units, each bending unit comprises a beam body, the beam body is provided with an upper straight moving rod and a lower straight moving rod, the upper straight moving rod and the lower straight moving rod are respectively provided with a plurality of bending units, the bending units are respectively provided with a plurality of bending units. Compared with the prior art, the structure disclosed by the invention has the characteristics of simple structure, reliable function and low manufacturing cost, in addition, fewer components are arranged in the beam body, the vacant space in the beam body is enlarged, and the installation and the daily maintenance of equipment are more convenient.
Drawings
For purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a flexible turnout of a straddle type monorail transit joint disclosed by the invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a graph of the profile of a groove cam groove in the present invention.
Reference numerals:
the device comprises a driving component 1, a motor 11, a coupler 12, a support 13, a speed reducer 14, a groove cam 15, a transmission shaft 16, an executing component 2, an upper straight moving rod 21, a roller 22, an upper executing rod 23, a supporting rod 24, a lower executing rod 25, a lower straight moving rod 26, a detection device 3, a collision block 31, a travel switch 32, a dust cover 4, a housing main body 41, a flexible connecting sleeve 42, a universal joint 5, a turnout beam body 6, a first beam main body 61, a second beam main body 62, a guide panel 63 and a stabilizing panel 64.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the invention discloses a flexible turnout bending structure of a straddle type monorail transit joint, which comprises a beam body, wherein the beam body comprises a beam main body, two parallel and opposite guide panels are respectively arranged on two sides of the beam main body, and a stabilizing panel which is positioned on the same vertical surface with the guide panels is also arranged under each guide panel;
the bending unit comprises a driving assembly arranged below the beam body and an executing assembly arranged in the beam body, wherein the executing assembly comprises an upper straight moving rod and a lower straight moving rod which are arranged along the width direction of the beam body, two ends of the upper straight moving rod respectively extend out of two sides of the beam body and are hinged with the side surface of the guide panel facing the beam body, the upper straight moving rod can swing on a horizontal plane relative to the guide panel, two ends of the lower straight moving rod respectively extend out of two sides of the beam body and are hinged with the side surface of the stabilizing panel facing the beam body, the lower straight moving rod can swing on the horizontal plane relative to the stabilizing panel, and the driving assembly is in transmission connection with the upper straight moving rod and the lower straight moving rod, the upper straight moving rod and the lower straight moving rod are driven to move along the width direction of the beam body simultaneously, and the moving direction and the moving distance of the upper straight moving rod and the lower straight moving rod of each flexing unit are equal in the moving process;
the bending device comprises a driving assembly, wherein the driving assembly is provided with a plurality of bending units, each bending unit comprises a beam body, the beam body is provided with an upper straight moving rod and a lower straight moving rod, the upper straight moving rod and the lower straight moving rod are respectively provided with a plurality of bending units, the bending units are respectively provided with a plurality of bending units.
It should be known to those skilled in the art that the above-mentioned straight moving rods and the below-mentioned straight moving rods are hinged to the guiding panel and the stabilizing panel, including but not limited to the beam body having through holes for the upper straight moving rods and the below-mentioned straight moving rods to pass through. It will also be appreciated by those skilled in the art that the mounting of the flexure unit includes, but is not limited to, mounting the flexure unit to the beam via brackets or other parts of the flexure unit itself.
Compared with the prior art, the structure disclosed by the invention has the characteristics of simple structure, reliable function and low manufacturing cost, in addition, fewer components are arranged in the beam body, the vacant space in the beam body is enlarged, and the installation and the daily maintenance of equipment are more convenient.
In specific implementation, the executing component further comprises a supporting rod which is transversely arranged between the upper straight moving rod and the lower straight moving rod; the executing assembly further comprises an upper executing rod, the lower end of the upper executing rod is connected with the driving assembly, an upper sliding groove arranged along the length direction of the upper executing rod is formed in the upper end of the upper executing rod, an upper hinge part is fixedly arranged on the upper straight-moving rod and penetrates through the upper sliding groove in the upper end of the upper executing rod, the upper hinge part can move in the upper sliding groove along the length direction of the upper sliding groove, the position between the two ends of the upper executing rod is also hinged with the supporting rod, the driving assembly can drive the upper executing rod to swing around a hinge point of the upper executing rod hinged with the supporting rod, and therefore the upper hinge part is pushed to drive the upper straight-moving rod to move along the width direction of the beam;
the executive component further comprises a lower executive rod, the lower end of the lower executive rod is connected with the driving component, the upper end of the lower executive rod is hinged to the supporting rod, a lower sliding groove which is formed in the length direction of the lower executive rod is formed between the two ends of the lower executive rod, the lower straight-moving rod is connected with the lower executive rod through a lower hinged part in the lower sliding groove, the lower hinged part can move in the length direction of the lower sliding groove in the lower sliding groove, the driving component can drive the lower executive rod to swing around a hinged point of the lower executive rod and the supporting rod, and therefore the lower straight-moving rod is driven to move in the width direction of the beam body.
It will be appreciated by those skilled in the art that the support rods may be directly fixedly attached to the inner surface of the beam body by means including, but not limited to, threaded connection, welding, and adhesive bonding. It will be appreciated by those skilled in the art that the rod-to-rod articulation may be by a rotating shaft and the rod-to-slot connection may be by a roller.
In specific implementation, the power device comprises a power unit and a transmission shaft; the driving assembly comprises a groove cam connected with the transmission shaft, the groove cam comprises two annular grooves, the lower ends of the upper actuating rod and the lower actuating rod are respectively inserted into the two grooves, the power unit can drive the transmission shaft to rotate so as to drive the groove cam to rotate along with the transmission shaft, the distance between the rotating axis of the upper actuating rod and the rotating axis of the lower actuating rod relative to the groove cam is changed under the limit driving of the grooves, and then the upper actuating rod and the lower actuating rod are driven to respectively swing around the supporting rod, so that the upper straight-moving rod and the lower straight-moving rod are driven to simultaneously move along the width direction of the beam body.
The existing implementation scheme adopting multi-pole belt transmission has the defects of unstable transmission ratio and inaccurate deflection deformation control; in the existing implementation scheme adopting the gear rack, in order to meet different displacement setting of different deflection points, the gear rack can only be manufactured by adopting a non-standard module, and the manufacturing cost and the maintenance cost are correspondingly increased. The groove cam structure has the function of compensating positioning errors, so that the guide panel and the stable panel are accurately deformed, and in addition, the manufacturing cost of the groove cam is far lower than that of a non-standard gear rack.
During specific implementation, the two grooves of the groove cam are respectively positioned on the surfaces of the two sides of the groove cam, the upper straight moving rod and the lower straight moving rod are respectively positioned on the two sides of the groove cam, and the lower ends of the upper executing rod and the lower executing rod are respectively fixedly provided with inserting protruding parts extending towards the direction of the groove cam and are respectively inserted into the two grooves through the respective inserting protruding parts.
Therefore, the stress distribution of the whole flexing unit is more uniform, and the service life of the flexing unit is prolonged.
As shown in fig. 3, in specific implementation, each groove of the groove cam includes two opposite arc-shaped grooves, the two arc-shaped grooves have different radii and the center of the circle is the rotation center of the groove cam, and the two arc-shaped grooves are communicated through a smooth transition section; when the groove cam rotates to the linear position, the bending unit is in a linear state, the hinge point of the upper actuating rod or the lower actuating rod and the groove cam is located in one section of arc-shaped groove corresponding to the groove, when the groove rotates to the bending position, the bending unit is in a bending state, and the hinge point of the upper actuating rod or the lower actuating rod and the groove cam is located in the other section of arc-shaped groove corresponding to the groove.
The AB section and the CD section are two opposite arc grooves, O is the rotation center of the groove cam, and the BC section and the AD section are transition sections connecting the AB section and the CD section. Because the AB section and the CD section have certain lengths, the upper actuating lever and the lower actuating lever can still be ensured to rotate in place under the condition that the transmission shaft does not rotate in place, and the positioning error compensation function is realized.
In each bending unit, the position of the support rod hinged with the upper actuating rod is the same as the position of the support rod hinged with the lower actuating rod, a hinge point at the upper end of the upper actuating rod and a hinge point of the upper actuating rod and the support rod are connected to obtain a first line segment, a hinge point of the lower actuating rod and the support rod and a hinge point of the lower actuating rod and the lower linear motion rod are connected to obtain a second line segment, and the first line segment and the second line segment are symmetrical about the horizontal plane where the support rod is located; connecting a hinge point of the upper actuating rod and the supporting rod with a hinge point at the lower end of the upper actuating rod to obtain a third line segment, connecting a hinge point of the lower actuating rod and the supporting rod with a hinge point at the lower end of the lower actuating rod to obtain a fourth line segment, wherein the third line segment and the fourth line segment are symmetrical about a vertical plane in the length direction of the beam body where the hinge point of the supporting rod and the upper actuating rod is located; projections of the two grooves of the groove cam on a vertical plane in the width direction of the beam body are centrosymmetric with respect to the rotation center of the groove cam.
The existing implementation scheme adopting the gear rack has the problem that the turnout beam has weak capacity of bearing load generated when a train passes through a turnout due to no self-locking.
In the invention, when the guide panel and the stabilizing panel are in a linear state or a bending state, the hinge point of the upper actuating rod and the groove cam is positioned at an arc CD section or an arc AB section, and the hinge point of the lower actuating rod and the groove cam is positioned at an arc AB section or an arc CD section. The acting force direction of the upper actuating rod to the groove cam passes through the rotating center O, and the acting force direction of the lower actuating rod to the groove cam passes through the rotating center O, so that the groove cam cannot be pushed to rotate no matter how much force is acted on the upper actuating rod or the lower actuating rod within the range allowed by the strength of the structural part, and the structure has a self-locking function.
In specific implementation, the radius of the arc-shaped groove of each bending unit is increased or decreased gradually along the length direction of the beam body, so that after the bending unit moves to the bending position, the moving distance of the upper straight moving rod and the lower straight moving rod of each bending unit is increased or decreased gradually along the length direction of the beam body.
Therefore, in the moving process, the moving directions of the upper straight moving rod and the lower straight moving rod of the two adjacent flexing units are the same, and the moving distances of the upper straight moving rod and the lower straight moving rod of each flexing unit are increased or decreased gradually along the length direction of the beam body, so that the deflecting deformation of the guide panel and the stabilizing panel is further realized.
As shown in fig. 2, when the motor drives the grooved cam to rotate 180 ° from the position shown in fig. 2, the grooved cam drives the upper actuating rod to rotate counterclockwise through the roller, the upper actuating rod drives the upper linear motion rod to move leftward through the roller, and the upper linear motion rod forces the two guide panels to deform; similarly, the groove cam drives the lower actuating rod to rotate clockwise through the roller, the lower actuating rod drives the lower direct-acting rod to move leftwards through the roller, and the lower direct-acting rod forces the two stable panels to deform. It can be understood that the upper straight moving rod and the lower straight moving rod of the same flexing unit can move to the left by only reasonably designing the sizes and the mutual position relation of the parts of the actuating assembly. It can be understood that different displacement amounts of the upper straight moving rod and the lower straight moving rod in different flexing units can be realized only by reasonably designing groove cams with different sizes. When the motor drives the groove cam to rotate by 180 degrees again, the groove cam returns to the initial position and drives the upper direct-acting rod and the lower direct-acting rod to return to the initial position, so that the guide panel and the stabilizing panel are restored to the linear state.
When the groove cam rotates to a linear position or a deflection position, the collision block is contacted with the travel switch.
As shown in fig. 1, the travel switch may be installed below the beam body, the collision block may be installed on the transmission shaft, the collision block may be composed of two rods symmetrical at 180 °, and when the collision block contacts the travel switch and collides the travel switch, the power unit stops working, thereby realizing accurate positioning of the guide panel and the stabilizing panel.
When the dust cover is specifically implemented, the dust cover is further included, and the driving assembly and the power device are installed inside the dust cover.
The dust cover can prevent the erosion of wind, rain, dust and the like to the driving assembly and the power device, and the service life of the equipment is prolonged.
When the power unit is specifically implemented, the power unit comprises a motor, a speed reducer is arranged between the motor and the transmission shaft, and the speed reducer is a cycloidal pin gear planetary speed reducer.
The cycloidal-pin gear planetary reducer has the characteristics of large output torque, large reduction ratio, small size and light weight, and is favorable for saving the installation space and increasing the output torque.
As will be appreciated by those skilled in the art, a plurality of beams can be powered by one power unit, and the transmission shafts between different beams can be connected by universal joints, thereby reducing the number of driving motors. And because the groove cam structure has the function of compensating positioning errors, the transmission ratio change caused by the universal joint does not cause the inaccurate deformation of the guide panel and the stable panel. In addition, a coupler can be arranged between the transmission shaft and the speed reducer, between the speed reducer and the motor and between the transmission shaft and the transmission shaft for connection. For the same beam body, a complete transmission shaft can be divided into multiple sections by arranging the coupler, so that the manufacturing difficulty of the transmission shaft is reduced. When the transmission shafts between different beam bodies are connected through the universal joint, the flexible connecting sleeve can be arranged at the joint of the two transmission shafts, so that the transmission shafts are prevented from being corroded by wind, rain, dust and the like, and the service life is prolonged.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The flexible turnout bending structure of the straddle type monorail transit joint is characterized by comprising a beam body, wherein the beam body comprises a beam main body, two parallel and opposite guide panels are respectively installed on two sides of the beam main body, and a stabilizing panel which is positioned on the same vertical surface with the guide panels is also installed below each guide panel;
the beam body is provided with a plurality of deflection units which are arranged along the length direction of the beam body at intervals, each deflection unit comprises a driving assembly arranged below the beam body and an actuating assembly arranged in the beam body, the executing component comprises an upper straight moving rod and a lower straight moving rod which are arranged along the width direction of the beam body, two ends of the upper straight moving rod respectively extend out of two sides of the beam body and are hinged with the side surface of the guide panel facing the beam body, the upper straight moving rod can swing on the horizontal plane relative to the guide panel, two ends of the lower straight moving rod respectively extend out of two sides of the beam body and are hinged with the side surface of the stabilizing panel facing the beam body, the lower straight moving rod can swing on the horizontal plane relative to the stabilizing panel, the driving component is in transmission connection with the upper direct-acting rod and the lower direct-acting rod so as to drive the upper direct-acting rod and the lower direct-acting rod to move along the width direction of the beam body simultaneously, in the moving process, the moving direction and the moving distance of the upper straight moving rod and the lower straight moving rod of each flexing unit are equal;
the bending unit comprises a beam body, a plurality of bending units and a power device, wherein the beam body is provided with an upper straight moving rod and a lower straight moving rod, the upper straight moving rod and the lower straight moving rod are respectively provided with a bending position, the lower straight moving rod is provided with a bending position, and the bending position is a bending position;
the executing component also comprises a supporting rod which is transversely arranged between the upper straight moving rod and the lower straight moving rod; the executing assembly further comprises an upper executing rod, the lower end of the upper executing rod is connected with the driving assembly, an upper sliding groove arranged along the length direction of the upper executing rod is formed in the upper end of the upper executing rod, an upper hinge part is fixedly arranged on the upper straight-moving rod and penetrates through the upper sliding groove in the upper end of the upper executing rod, the upper hinge part can move in the upper sliding groove along the length direction of the upper sliding groove, the position between the two ends of the upper executing rod is also hinged with the supporting rod, the driving assembly can drive the upper executing rod to swing around a hinge point of the upper executing rod hinged with the supporting rod, and therefore the upper hinge part is pushed to drive the upper straight-moving rod to move along the width direction of the beam;
the executive component further comprises a lower executive rod, the lower end of the lower executive rod is connected with the driving component, the upper end of the lower executive rod is hinged to the supporting rod, a lower sliding groove which is formed in the length direction of the lower executive rod is formed between the two ends of the lower executive rod, the lower straight-moving rod is connected with the lower executive rod through a lower hinged part in the lower sliding groove, the lower hinged part can move in the length direction of the lower sliding groove in the lower sliding groove, the driving component can drive the lower executive rod to swing around a hinged point of the lower executive rod hinged with the supporting rod, and therefore the lower straight-moving rod is driven to move in the width direction of the beam body.
2. The flexure structure of flexible turnout junction of straddle-type monorail transit according to claim 1, wherein said power device comprises a power unit and a transmission shaft; the driving assembly comprises a groove cam connected with the transmission shaft, the groove cam comprises two annular grooves, the lower ends of the upper actuating rod and the lower actuating rod are respectively inserted into the two grooves, the power unit can drive the transmission shaft to rotate so as to drive the groove cam to rotate along with the transmission shaft, the distance between the lower ends of the upper actuating rod and the lower actuating rod relative to the rotating axis of the groove cam is changed under the limit driving of the grooves, and then the upper actuating rod and the lower actuating rod are driven to respectively swing around the supporting rod, so that the upper straight moving rod and the lower straight moving rod are driven to simultaneously move along the width direction of the beam body.
3. The flexible turnout of a straddle-type monorail transit joint of claim 2, wherein the two grooves of the groove cam are respectively located on the two side surfaces of the groove cam, the upper straight-moving rod and the lower straight-moving rod are respectively located on the two sides of the groove cam, and the lower ends of the upper actuating rod and the lower actuating rod are respectively fixedly provided with an insertion projection extending towards the direction of the groove cam and are respectively inserted into the two grooves through the respective insertion projections.
4. The flexure structure of the flexible turnout of the straddle-type monorail transit joint of claim 3, wherein each groove of the groove cam comprises two sections of arc-shaped grooves which are opposite, the two sections of arc-shaped grooves have different radiuses and the centers of circles are the rotation centers of the groove cam, and the two sections of arc-shaped grooves are communicated through a smooth transition section; when the groove cam rotates to the linear position, the bending unit is in a linear state, the hinge point of the upper actuating rod or the lower actuating rod and the groove cam is located in one section of arc-shaped groove corresponding to the groove, when the groove rotates to the bending position, the bending unit is in a bending state, and the hinge point of the upper actuating rod or the lower actuating rod and the groove cam is located in the other section of arc-shaped groove corresponding to the groove.
5. The flexible turnout of a straddle-type monorail transit joint of claim 3, wherein in each flexing unit, the position where the supporting rod is hinged to the upper actuating rod is the same as the position where the supporting rod is hinged to the lower actuating rod, a first line segment is obtained by connecting a hinge point at the upper end of the upper actuating rod and a hinge point of the upper end of the upper actuating rod and the supporting rod, a second line segment is obtained by connecting a hinge point of the lower actuating rod and a hinge point of the lower linear motion rod, and the first line segment and the second line; connecting a hinge point of the upper actuating rod and the supporting rod with a hinge point at the lower end of the upper actuating rod to obtain a third line segment, connecting a hinge point of the lower actuating rod and the supporting rod with a hinge point at the lower end of the lower actuating rod to obtain a fourth line segment, wherein the third line segment and the fourth line segment are symmetrical about a vertical plane in the length direction of the beam body where the hinge point of the supporting rod and the upper actuating rod is located; projections of the two grooves of the groove cam on a vertical plane in the width direction of the beam body are centrosymmetric with respect to the rotation center of the groove cam.
6. The flexure structure of flexible turnout junction in straddle-type monorail transit according to claim 5, wherein the radius of the arc-shaped groove of each flexure unit increases or decreases along the length direction of the beam body, so that the moving distance of the upper straight moving rod and the lower straight moving rod of each flexure unit increases or decreases along the length direction of the beam body after moving to the flexure position.
7. The flexure structure of a flexible switch of a straddle-type monorail transit joint as claimed in claim 2, further comprising a detection device, wherein the detection device comprises a travel switch electrically connected with the power unit and a collision block rotating with the grooved cam, and when the grooved cam rotates to the linear position or the flexure position, the collision block contacts with the travel switch.
8. The flexure structure of flexible turnouts of a straddle-type monorail transit joint as claimed in claim 2, further comprising a dust cover, wherein said drive assembly and power device are mounted inside the dust cover.
9. The flexible turnout of the straddle-type monorail transit joint of claim 2, wherein the power unit comprises a motor, a speed reducer is arranged between the motor and the transmission shaft, and the speed reducer is a cycloidal pin gear planetary speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811583271.9A CN109572752B (en) | 2018-12-24 | 2018-12-24 | Bending structure of flexible turnout of straddle type monorail transit joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811583271.9A CN109572752B (en) | 2018-12-24 | 2018-12-24 | Bending structure of flexible turnout of straddle type monorail transit joint |
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| CN109572752A CN109572752A (en) | 2019-04-05 |
| CN109572752B true CN109572752B (en) | 2020-09-08 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2241792C3 (en) * | 1972-08-25 | 1976-01-08 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Mechanically adjustable switch for a magnetic suspension railway |
| CN2389912Y (en) * | 1999-11-01 | 2000-08-02 | 铁道部专业设计院 | Sliding wedge type flexible joint switches |
| CN2771274Y (en) * | 2005-02-25 | 2006-04-12 | 重庆齿轮箱有限责任公司 | Trans seat type flexible single-track switch side plate deforming apparatus |
| CN202705824U (en) * | 2012-07-20 | 2013-01-30 | 重庆川东船舶重工有限责任公司 | Flexivity driving assembly of flexible side support of flexible turnout beam |
| CN102787536B (en) * | 2012-07-20 | 2015-08-05 | 重庆川东船舶重工有限责任公司 | Straddle type single rail traffic rail flexible turnout beam |
| CN102817289B (en) * | 2012-07-20 | 2015-09-02 | 重庆川东船舶重工有限责任公司 | Flexible turnout beam section for saddle type single track traffic track |
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