CN113911160B - Driving device for uncoupling and automatic uncoupling mechanism of coupler of driving device - Google Patents
Driving device for uncoupling and automatic uncoupling mechanism of coupler of driving device Download PDFInfo
- Publication number
- CN113911160B CN113911160B CN202111340617.4A CN202111340617A CN113911160B CN 113911160 B CN113911160 B CN 113911160B CN 202111340617 A CN202111340617 A CN 202111340617A CN 113911160 B CN113911160 B CN 113911160B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston rod
- piston
- coupler
- driving device
- 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
- 230000007246 mechanism Effects 0.000 title abstract description 19
- 238000007789 sealing Methods 0.000 claims description 29
- 238000009434 installation Methods 0.000 abstract description 15
- 238000005096 rolling process Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000030279 gene silencing Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 108010015780 Viral Core Proteins Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
The invention discloses a driving device for uncoupling and an automatic uncoupling mechanism of a coupler of the driving device, relates to the technical field of rail transit, and solves the technical problems of poor stress condition, large size and the like of the existing automatic uncoupling mechanism. The invention discloses a driving device for unhooking, which comprises a cylinder, wherein a contact structure is arranged at the extending end of a piston rod assembly of the cylinder, the contact structure comprises a mounting cavity arranged on the end face of the extending end of the piston rod assembly, one side of a sphere center is positioned in the mounting cavity, the other side of the sphere center is in stop fit with a piston baffle in the axial direction of a piston rod, and the piston baffle is fixed on the assembly by a fastener B. The ball rolling contact structure designed by the invention not only ensures the coaxiality of the stress direction and the driving direction of the driving source and improves the stress environment, but also has compact and simple whole installation structure and small occupied space, and effectively improves the assembly efficiency and the structural integrity of the driving device.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a driving device for uncoupling and an automatic uncoupling mechanism of a coupler of the driving device.
Background
Rail transit systems refer to transit systems in which vehicles run on fixed rails and are used primarily for transportation, such as passenger transport. Vehicles and locomotives are one of the core devices in rail transit systems, and in order to realize the connection between the locomotives and the vehicles or between the vehicles and the vehicles, transfer traction force and bear impact force, and meanwhile, vehicle parts which keep a certain distance between the vehicles are required to be kept, the vehicles are mainly realized by combining a coupler with an automatic uncoupling and hooking mechanism at present. The coupler is arranged at the end part of a locomotive or a vehicle to be connected, and the automatic hooking and unhooking operation is realized through the unhooking mechanism, so that the coupler has the comprehensive functions of connection, traction and buffering.
In recent years, along with the rapid development of rail transit, the automation of high-speed rails and subways is higher and higher, and the requirements on an automatic uncoupling mechanism for connecting couplers of two adjacent carriages are higher and higher, and new requirements on the accurate and stable action, the simplified structure, the compactness of the automatic uncoupling mechanism and the like are provided. The existing automatic unhooking mechanism has large volume, complex structure, insufficient compactness, large weight and poor product appearance; in order to match enough linear driving travel, the automatic uncoupling mechanism of the coupler disclosed in the prior art CN208530582U has the advantages that the driving source is large in size and weight, the integral appearance of the automatic uncoupling mechanism is affected, the integral weight of equipment is increased, and the later maintenance is extremely inconvenient.
Meanwhile, in order to improve the stability of the driving source for driving the coupler knuckle to rotate and reduce friction, the driving source in the prior art is contacted with the coupler knuckle through a roller, the roller is required to rotate by adopting a coaxial wheel shaft, support rods are arranged at two end parts of the wheel shaft, and the roller is rotatably arranged at the driving end of the driving source through the support rods. In the rolling contact structure, firstly, the space occupation of the installation structure is larger; secondly, the support of gyro wheel only carries out the tip through the bracing piece in this structure and supports that forced portion is few and circumference distributes unevenly.
Disclosure of Invention
The invention aims at: in order to solve the technical problems, the invention provides a driving device for uncoupling and an automatic uncoupling mechanism of a coupler of the driving device.
The technical scheme adopted by the invention is as follows:
The driving device for unhooking comprises a cylinder, wherein a contact structure is arranged at the extending end of a piston rod assembly of the cylinder, the contact structure comprises a mounting cavity arranged on the end face of the extending end of the piston rod assembly, one side of a sphere center is positioned in the mounting cavity, the other side of the sphere center is matched with a sphere in a blocking manner of a piston baffle plate in the axial direction of a piston rod, and the piston baffle plate is fixed on the assembly through a fastener B.
Further, the cylinder end cover of the cylinder is outwards protruded to form a circular boss on one side of the inner cavity of the cylinder, and the outer cylindrical surface of the circular boss is attached to the inner circumferential surface of the cylinder shell of the cylinder.
Further, the vent hole on the cylinder end cover sinks into the inner cavity of the cylinder, the air pipe connector is matched with the vent hole, and the shaft shoulder of the air pipe connector is in contact with the outer side end surface of the vent hole.
Further, the cylinder is a secondary cylinder, the piston rod assembly of the secondary cylinder comprises a piston rod and a piston sleeve rod which are outwards arranged in the inner cavity of the cylinder from the center, the outer cylindrical surface of the piston sleeve rod is in sealing fit with the inner cavity of the cylinder through a sealing ring A, and the outer cylindrical surface of the piston rod is in sealing fit with the inner cavity of the piston sleeve rod through a sealing ring C;
The installation cavity is arranged on the piston rod, and the outer diameter of the piston baffle is larger than the outer diameter of the small end of the piston rod.
Further, an outer annular space is arranged in the middle of the matching of the inner cavity of the cylinder and the piston sleeve rod, and an exhaust hole A which is used for communicating a cavity of one side of the cylinder far away from the extending end of the piston rod with the outer annular space is arranged at one end of the piston sleeve rod close to the air source;
An inner annular space is arranged in the middle of the piston sleeve rod and the piston rod in a matched mode, and an exhaust hole B which is used for communicating a cavity of one side, far away from the overhanging end of the piston rod, of the cylinder with the inner annular space is arranged at one end, close to an air source, of the piston rod.
Further, a lightening hole is arranged on the end face of the piston rod, which is far away from the extending end of the piston rod.
Further, the installation cavity is of a hemispherical structure, and the part of the piston baffle plate matched with the ball body in a blocking way is a spherical hole.
Further, one side, close to the extending end of the piston rod assembly, of the outer circumferential surface of the cylinder shell of the cylinder is a conical surface, and the small-diameter end of the conical surface is close to the extending end of the piston rod assembly.
The device for driving the knuckle of the automatic uncoupling device of the coupler is the driving device.
Further, in the automatic uncoupling device of the coupler, a flange end face is outwards protruded on the outer circumferential surface of the cylinder shell of the cylinder, the end part of a hole body inserted by the air cylinder on the coupler head body of the automatic uncoupling device of the coupler extends outwards to the end face of the flange, a screw penetrates through the end face of the flange and then is connected with a threaded hole corresponding to the coupler head body, and the inner wall of an extension part at the position of the hole body is attached to the outer circumferential surface of the cylinder shell.
The beneficial effects of the invention are as follows:
1. During processing, the coaxiality of the mounting cavity and the piston rod assembly can be ensured directly through the clamping of a machine tool and the position of a cutter, so that the sphere can be positioned directly through mounting, the coaxiality of the sphere and the piston rod assembly is ensured, the coaxiality of the stress direction and the axis of the piston rod assembly is convenient for the subsequent use, the stress environment is improved, and adverse conditions such as material fatigue and part damage are prevented;
2. the matching area of related parts and the ball body is increased through the hemispherical installation cavity and the piston baffle with the inner hole as the taper hole, so that the installation stability of the ball body is improved, and the ball body is ensured to rotate only along the center of the ball body and cannot shake in the installation cavity; meanwhile, when the driving device drives, the reaction force born by the driving device is consistent with the axis of the driving device, and the driving device cannot deviate from the axis of the driving device, so that the conditions that the stress position of the driving end of the driving source deviates from the center, and the end part of the driving source is easy to deform and damage are avoided;
3. The invention improves the existing roller friction-reducing structure into the ball rolling contact structure designed by the scheme, not only ensures the coaxiality of the stress direction and the driving direction of the driving source and improves the stress environment, but also has compact and simple whole installation structure and small occupied space, and effectively improves the assembly efficiency of the driving device and the structural integrity;
4. The outer cylindrical surface of the circular boss is attached to the inner circumferential surface of the cylinder shell of the cylinder, so that when the cylinder end cover is installed, the cylinder end cover can be radially positioned by the circular boss made of the inner circumferential surface of the cylinder shell, and the convenience in assembly of the cylinder end cover is improved;
5. The outer cylindrical surface of the circular boss on the cylinder end cover is attached to the inner circumferential surface of the cylinder shell of the cylinder, so that the cylinder end cover can be radially positioned by the circular boss made of the inner circumferential surface of the cylinder shell when the cylinder end cover is installed, and the convenience of assembling the cylinder end cover is improved;
6. the automatic unhooking and unhooking device has compact structure, small occupied space, light weight and attractive overall appearance. The coaxiality of the force application and the stress can be ensured at the contact part of the air cylinder and the coupler knuckle, and the rolling contact can be realized by adopting a simple structure, so that the push and the return of the coupler knuckle are facilitated.
Drawings
For more clearly describing the technical solution of the embodiments of the present invention, the following description will briefly describe the drawings required to be used in the embodiments, and it should be understood that the proportional relationships of the components in the drawings in this specification do not represent the proportional relationships in actual material selection design, but are merely schematic diagrams of structures or positions, where:
FIG. 1 is a schematic view of the structure of a unhooking drive;
FIG. 2 is an exploded view of the unhooking drive;
FIG. 3 is a control schematic of the cylinder;
FIG. 4 is a front view of the unhooking mechanism;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a top view of the unhooking mechanism;
FIG. 7 is a cross-sectional view taken along B-B in FIG. 6;
FIG. 8 is a perspective view of the major core components of the unhooking arrangement;
FIG. 9 is a schematic diagram of a two-coupler automatic uncoupling mechanism when coupled;
FIG. 10 is a schematic diagram of a two-coupler automatic mechanism disengaged.
The reference numerals in the drawings indicate:
1-hook head body, 2-hook tongue, 3-hook tongue rotating shaft, 4-connecting hanging rod, 5-connecting hanging rod rotating shaft, 6-tension spring, 7-cylinder, 8-shaft baffle, 9-air pipe, 10-inner hexagonal screw, 11-normally closed two-position three-port electromagnetic reversing valve, 12-silencing throttle valve, 2001-hook tongue protrusion and 4001-connecting hanging rod boss;
7-cylinder, 701-cylinder housing, 702-piston rod, 703-piston rod, 704-cylinder end cover, 705-sphere, 706-piston baffle, 707-seal ring a, 708-seal ring B, 709-seal ring C, 710-air pipe joint, 711-screw a, 712-fastener B, 7012-outer annulus, 7022-inner annulus, 7011-flange end, 7021-vent a, 7031-vent B, 7032-spherical groove, 7033-lightening hole, 7041-annular boss, 7042-vent.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention.
The present invention will be described in detail with reference to fig. 1 to 10.
Example 1
As shown in fig. 1 to 3, the driving device for unhooking according to the present invention comprises a cylinder 7, wherein the outward extending end of a piston rod assembly of the cylinder 7 is provided with a contact structure, the contact structure comprises a mounting cavity 7032 arranged on the end surface of the outward extending end of the piston rod assembly, one side of a sphere center is positioned in the mounting cavity 7032, the other side of the sphere center is in blocking fit with a piston baffle 706 in the axial direction of the piston rod, and the piston baffle 706 is fixed on the assembly by a fastener B712.
The mounting cavity 7032 is used to locate a sphere, which is preferably a steel ball. During specific processing, the coaxiality of the mounting cavity 7032 and the piston rod assembly can be directly ensured through the clamping of a machine tool and the position of a cutter, so that the sphere 705 can be positioned directly through mounting, the coaxiality of the sphere 705 and the piston rod assembly is ensured, the coaxiality of the stress direction and the axis of the piston rod assembly during subsequent use is convenient, the stress environment is improved, and adverse conditions such as material fatigue and part damage are prevented. The mounting cavity 7032 can be processed into a hole body structure with the aperture consistent with the sphere diameter of the sphere and the depth consistent with the sphere radius, and can also be directly processed into a hemispherical groove structure with the sphere diameter consistent with the sphere diameter of the sphere, which is not particularly limited. Preferably, the piston baffle 706 is a spherical hole at a position matched with the stop of the sphere 705. Through setting up hemispherical installation cavity and the piston baffle that the hole is the taper hole, increased the cooperation area of relevant part and spheroid, promoted the stability of spheroid installation, guaranteed then that the spheroid only rotates along self centre of sphere, and can not rock in the installation cavity. When the driving device drives, the reaction force born by the driving device is consistent with the axis of the driving device, and the driving device cannot deviate from the axis of the driving device, so that the conditions that the stressed position of the driving end of the driving source deviates from the center, and the end of the driving source is easy to deform and damage are effectively avoided.
Meanwhile, in the embodiment, the existing roller friction-reducing structure is improved into the ball rolling contact structure designed by the scheme, besides the coaxiality of the stress direction and the driving direction of the driving source is guaranteed, the stress environment is improved, the whole installation structure is compact and simple, the occupied space is small, and the assembly efficiency of the driving device and the structural integrity are effectively improved.
Fastener B712 is preferably a screw, and in particular a countersunk screw, the shaft end of which is threaded through cylinder end cap 704 and then into the end of the piston rod assembly, as shown in fig. 1. There are 12 screws B, symmetrically distributed along the axis center of the piston rod assembly, as shown in fig. 2. And the outer diameter of the cylinder end cover is larger than the outer diameter of the overhanging end of the piston rod assembly, so that the assembly and the later maintenance of the contact structure are facilitated, and the convenience of the assembly and the maintenance of the driving device is improved.
Example 2
As shown in fig. 1 to 3, the driving device for unhooking according to the present invention comprises a cylinder 7, wherein the overhanging end of a piston rod assembly of the cylinder 7 is provided with a contact structure, the contact structure comprises a mounting cavity 7032 which is arranged on the end face of the overhanging end of the piston rod assembly and is in a hemispherical structure, one side of a sphere center is positioned in the mounting cavity 7032, the other side of the sphere center is in stop fit with a piston baffle 706 in the axial direction of a piston rod, and the piston baffle 706 is fixed on the assembly by a fastener B712.
The cylinder end cover 704 of the cylinder 7 is protruded to form a circular boss 7041 on one side of the inner cavity of the cylinder 7, and the outer cylindrical surface of the circular boss 7041 on the cylinder end cover is attached to the inner circumferential surface of the cylinder housing 701 of the cylinder 7. The fit between the circular boss 7041 and the inner circumferential surface of the cylinder housing 701 is specifically a clearance fit, the left end surface of the cylinder end cover 704 is tightly attached to the cylinder housing 701, the screw a711 fixes the cylinder end cover 704 on the cylinder housing 701, and the seal ring B708 for sealing the cylinder end cover and the cylinder end cover is pressed and plays a sealing role, as shown in fig. 1. Seal B708 is preferably an O-ring seal.
The outer cylindrical surface of the circular boss 7041 is attached to the inner circumferential surface of the cylinder housing 701 of the cylinder 7, so that when the cylinder end cover is mounted, the cylinder end cover can be radially positioned by the circular boss 7041 made of the inner circumferential surface of the cylinder housing 701, and the convenience in assembly of the cylinder end cover is improved. And screw a is preferably a countersunk screw.
The structure for the charge and exhaust ports on the cylinder head cover is implemented as follows: the vent 7042 on the cylinder end cover 704 is sunk into the inner cavity of the cylinder 7, the air pipe joint 710 is matched with the vent 7042, and the shaft shoulder of the air pipe joint 710 is contacted with the outer side end face of the vent 7042. Thus, the axial size of the whole driving device can be reduced by the installation space of the sinking part air pipe structure to the inner cavity of the air cylinder. The left end of the air pipe joint 710 is provided with external threads, the center of the air pipe joint is provided with a through hole for ventilation, the middle of the air cylinder end cover 704 is provided with internal threads matched with the air pipe joint 710, and the air pipe joint 710 is screwed into a threaded hole of the air cylinder end cover 704.
In order to further reduce the axial size of the driving device and reduce the gravity thereof, the cylinder 7 is preferably a secondary cylinder as shown in fig. 1, the piston rod assembly of which comprises a piston rod 703 and a piston sleeve 702 which are arranged in the inner cavity of the cylinder 7 from the center outwards, the outer cylindrical surface of the piston sleeve 702 is in sealing fit with the inner cavity of the cylinder 7 through a sealing ring A707, and the outer cylindrical surface of the piston rod 703 is in sealing fit with the inner cavity of the piston sleeve 702 through a sealing ring C709; the mounting cavity 7032 is disposed on the piston rod 703, and the outer diameter of the piston baffle 706 is greater than the outer diameter of the small end of the piston rod 703. The two sealing rings A707 are arranged in a sealing groove of the inner cavity of the cylinder shell (701); two sealing rings C709 are arranged in a sealing groove of the inner cavity of the piston sleeve rod 702.
The steel ball is placed in a hemispherical hole at the left end of the piston rod, a hemispherical hole is formed in the middle of the piston baffle 706, the hemispherical surface of the piston baffle 706 is matched with the steel ball, the piston baffle is fixed on the left end face of the piston rod by a screw B712, and the steel ball can rotate in the spherical hole formed by the piston rod and the piston baffle.
Further, an outer annular space 7012 is arranged in the middle of the inner cavity of the cylinder 7 and the matched piston sleeve rod 702, and an exhaust hole A7021 which is used for communicating a cavity of the cylinder 7 at one side far away from the extending end of the piston rod with the outer annular space 7012 is arranged at one end of the piston sleeve rod 702 close to an air source;
An inner annular space 7022 is arranged in the middle of the cooperation of the piston sleeve rod 702 and the piston rod 703, and an exhaust hole B7031 for communicating a cavity of the cylinder 7, which is far away from the outer extending end side of the piston rod, with the inner annular space 7022 is arranged at one end of the piston rod 703, which is close to an air source.
Preferably, a weight reducing hole 7033 is provided in the end surface of the piston rod 703 remote from the outer end of the piston rod.
The piston sleeve rod 702 is placed in the hole of the cylinder housing 701, two outer cylindrical surfaces of the piston sleeve rod 702, which are positioned at the two ends of the outer ring space, are in small clearance fit with the inner hole of the cylinder housing 701, and the line diameter of the sealing ring A707 is larger than the clearance between the sealing groove and the piston sleeve rod 702 so as to play a sealing role through compression deformation; the piston sleeve rod 702 can axially slide relative to the cylinder housing 701, and the large end surface of the piston sleeve rod 702 is provided with 8 uniformly distributed exhaust holes A7021 along the circumferential direction, as shown in FIG. 2;
The piston rod 703 is placed in the hole of the piston sleeve rod 702, two outer cylindrical surfaces positioned at the two ends of the inner ring on the piston rod 703 are in small clearance fit with the inner hole of the piston sleeve rod 702, the linear diameter of the sealing ring C709 is larger than the clearance between the sealing groove and the piston rod 703, the sealing effect is achieved, the piston rod 703 can axially slide relative to the piston sleeve rod 702, and 8 uniformly distributed exhaust holes B7031 are formed in the large end surface of the piston rod 703 along the circumferential direction, as shown in fig. 2;
the sealing ring B708 is arranged in the sealing groove of the large end face of the cylinder housing 701, and the wire diameter of the sealing ring B708 is larger than the height of the sealing groove so as to play a sealing role through compression deformation.
When the cylinder piston rod extends outwards, the air inlet 7042 is used for allowing air to enter, and acts on the end surfaces of the piston sleeve rod 702 and the piston rod 703 to push the piston sleeve rod 702 and the piston rod 703 to extend outwards until the piston sleeve rod 702 is in stop fit with the inner wall of the cylinder shell and the piston rod is in stop fit with the inner wall of the piston sleeve rod; when the cylinder is retracted, under the reset action of the return spring of the coupler knuckle, the coupler knuckle pushes the piston rod to retract, and when the piston baffle 706 is in contact with the piston sleeve rod, the acting force of the return spring is transmitted to the piston sleeve rod through the piston baffle, so that the piston sleeve rod is pushed to return together with the piston sleeve rod.
In the embodiment, the axial stroke positioning of the extension of the piston rod and the piston sleeve rod is realized through the annular space communicated with the driving air source, the extension operation of the cylinder is ensured to be stably carried out, and the formation of a closed space is prevented.
As shown in fig. 1 and 2, a side of the outer circumferential surface of the cylinder housing 701 of the cylinder 7, which is close to the extension end of the piston rod assembly, is a tapered surface, and the small diameter end thereof is close to the extension end of the piston rod assembly. The conical surface is convenient for installing the driving device on the hook head body of the unhooking device.
Example 3
With respect to the control of the cylinder, as shown in fig. 3, the air source is communicated with the vent 7042 on the cylinder end cover 704 of the cylinder through the first passage of the normally-closed two-position three-port electromagnetic directional valve 11, the air pipe 9 and the air inlet pipe structure 710; two ends of the second passage of the normally closed two-position three-port electromagnetic reversing valve 11 are respectively communicated with an air pipe and a silencing throttle valve 12. During air intake, a pressure air source supplies air to the inner cavity of the cylinder through a first passage of the normally-closed two-position three-port electromagnetic directional valve 11, the air pipe 9 and the air inlet pipe joint 710 so as to drive the piston rod assembly to extend outwards. During exhaust, the coupler knuckle drives the piston rod assembly to retract, the internal space of the cylinder is compressed, and gas is discharged from the air inlet pipe joint 710, the air pipe 9, the second passage of the normally closed two-position three-port electromagnetic directional valve 11 and the silencing throttle valve 12. The muffler throttle valve 12 can adjust the flow rate and effectively reduce noise during exhaust.
Example 4
As shown in fig. 4 to 8, the device for driving the knuckle of the automatic uncoupling device of the coupler is the driving device described above.
In the automatic uncoupling device for the coupler, as shown in fig. 5, the flange end face 7011 is outwards protruded on the outer circumferential surface of the cylinder housing 701 of the cylinder 7, the end part of the hole body, into which the air cylinder 7 is inserted, on the coupler head body 1 of the automatic uncoupling device for the coupler extends outwards to the flange end face 7011, the screw penetrates through the flange end face 7011 and then is connected with the corresponding threaded hole of the coupler head body 1, the inner wall of the hole body is attached to the outer circumferential surface of the cylinder housing 701, so that an installation space is provided for the installation of the cylinder, the matching surface of the coupler head body and the cylinder is increased on the basis that the uncoupling inner space is not influenced, the coaxiality of the corresponding hole bodies on the cylinder and the coupler head body is improved, and the cylinder cannot deviate radially.
The front end face of the cylinder housing 701 of the cylinder 7 is arranged in a corresponding hole of the hook head body 1, the flange end face of the cylinder housing 701 is clung to the end face of the corresponding mounting hole of the hook head body 1, the cylinder 7 is fixed on the hook head body 1 by using a screw, a steel ball at the front end of the cylinder 7 can be contacted with an arc surface of a hook tongue, and an air pipe 9 is inserted into the hole of an air pipe joint 710 of the cylinder to supply air for the cylinder.
The automatic uncoupling device of the coupler comprises a coupler head body 1, a coupler knuckle 2 rotatably arranged in the inner cavity of the coupler head body 1, a connecting rod 4, a tension spring 6, wherein one end of the connecting rod 4 is connected with the coupler head body, the other end of the tension spring is connected with the coupler knuckle or the connecting rod, preferably, the upper end face and the lower end face of the coupler knuckle 2 are attached to the cavity walls on the upper side and the lower side of the coupler head body 1 and are in clearance fit, one end of the coupler knuckle 2 is hinged with the coupler head body 1 through a coupler knuckle rotating shaft 3, the other end of the coupler knuckle 2 is arranged in a moving groove of the coupler head body and can be inserted into a positioning groove on the coupler knuckle 2 of the other uncoupling device along with the rotation of the coupler knuckle, and the coupler knuckle 2 can rotate relative to the coupler head body 1 along the coupler knuckle rotating shaft 3. One end of the coupler knuckle rotating shaft 3 is positioned outside the coupler head body 1 and is attached to the hole end surface of the coupler head body 1 through a step of a large cylindrical surface, the other end of the coupler knuckle rotating shaft 3 is positioned outside the coupler head body 1, the small end surface of the coupler knuckle rotating shaft 3 is fixedly provided with a shaft baffle 8 through an inner hexagon screw 10, and the end surface of the shaft baffle 8 is contacted with the hole end surface of the coupler head body 1, so that the axial movement of the coupler knuckle rotating shaft 3 is limited. Specifically, the tension spring 6 is connected with the connecting rod 4, and the connecting rod 4 is U-shaped. The connecting rod 4 is hinged with the coupler knuckle 2 through the connecting rod rotating shaft 5, so that the connecting rod 4 and the coupler knuckle 2 can rotate relatively, and the connecting rod 4 can synchronously move along with the rotation of the coupler knuckle. The knuckle 2 is provided with a knuckle projection 2001 which can abut against the coupling lever 4 when unhooking. The hook head body 1 is provided with a spring hanging hole, one end of the tension spring 6 is hung on the spring hanging hole of the hook head body 1, and the other end of the tension spring 6 is hung on a groove of the connecting rod 4.
The cylinder overhanging process comprises the following steps:
After the control system receives the unhooking signal, the normally closed two-position three-port electromagnetic directional valve 11 is electrified, as shown in fig. 3, air with pressure sequentially enters the inner cavity of the air cylinder 7 through the normally closed two-position three-port electromagnetic directional valve 11, the air pipe 9 and the air pipe joint 710, the piston rod 703 and the piston sleeve 702 slowly extend out respectively under the action of air pressure, the step distance between the boss at the large end of the piston rod 703 and the inner hole of the piston sleeve 702 is reduced, and the air is discharged through the air discharge hole B7031 without forming a closed space; the distance between the large end surface of the outer cylindrical surface of the piston rod 702 and the cylinder housing 701 is reduced, and air is discharged through the exhaust hole A7021 without forming a closed space; when the boss at the large end of the piston rod 703 contacts with the step of the inner hole of the piston sleeve rod 702 to limit, the piston rod 703 does not extend continuously relative to the piston sleeve rod 702; when the large end face of the outer cylindrical surface of the piston rod 702 contacts with the cylinder housing 701 to limit and does not extend continuously, the cylinder is extended. With the extension of the piston rod, the extension end of the piston rod pushes the coupler knuckle to rotate.
The cylinder retraction process comprises the following steps:
After unhooking is completed, the normally closed two-position three-port electromagnetic directional valve 11 is powered off, the cylinder inner cavity is communicated with the silencing throttle valve to exhaust, so that the air pressure in the cylinder inner cavity is zero, the connecting rod 4 pushes the coupler knuckle 2 to rotate the coupler knuckle rotating shaft 3 anticlockwise under the action of the restoring force of the tension spring 6, when the coupler knuckle 2 rotates anticlockwise, the tongue on the coupler knuckle 2 abuts against the steel ball, the piston rod 703 and the piston baffle 7 to move and shrink along the cylinder axial direction, meanwhile, the steel ball 705 slides relatively to the tongue on the coupler knuckle 2, the step distance between the boss at the large end of the piston rod 703 and the inner hole of the piston sleeve 702 is increased, air enters through the exhaust hole B7031 without forming a closed space, as shown in fig. 1, after the piston baffle 7 contacts with the left end face of the piston sleeve 702, the piston rod 703 does not shrink again, the coupler knuckle 2 continues to rotate under the action of the tension spring 6, the piston baffle 7 pushes the piston sleeve 702 to move and shrink along the cylinder axial direction, the distance between the large end face of the outer cylinder surface of the piston sleeve 702 and the cylinder housing 701 is increased, and air enters through the exhaust hole A7021 without forming a closed space until the boss on the connecting rod 4 corresponds to the boss 4001, and the boss is stopped when the coupler knuckle 2 rotates, and the boss 4001 is completely contracted.
The coupler connecting and hanging process comprises the following steps:
Before the two couplers are connected, the normally closed two-position three-port electromagnetic directional valve 11 is in a power-off state, the inner cavity of the air cylinder 7 is communicated with the silencing throttle valve for exhausting, so that the air pressure in the inner cavity of the air cylinder 7 is zero relative to the external air pressure, the connecting rod 4 is under the tension of the tension spring 6, the connecting rod boss 4001 is contacted with a boss in the cavity of the coupler head body 1 and limited, and the coupler knuckle 2 is also rotated under the action force of the tension spring 6 and compresses the piston rod 703 and the piston sleeve 702 of the air cylinder to a contracted state;
When the two couplers are connected, the cylindrical surface at the front end of the connecting rod 4 of one uncoupling mechanism is slowly close to the outer arc surface of the coupler knuckle 2 of the other uncoupling mechanism, when the two couplers are continuously close to each other, the connecting rod 4 overcomes the pulling force of the tension spring 6 and moves backwards, the connecting rod 4 rotates clockwise relative to the coupler knuckle 2 by taking the coupler knuckle reaction force of the other coupler as the center along the connecting rod rotating shaft 5, at the moment, the coupler knuckles 2 of the two couplers are also rotated clockwise, when the cylindrical surface at the front end of the connecting rod 4 rotates to the semicircular cylindrical groove of the coupler knuckle 2 of the other coupler, the cylindrical surface at the front end of the connecting rod 4 enters the semicircular cylindrical groove of the coupler knuckle 2 under the pulling force of the tension spring 6, at the moment, the front end surfaces of the two coupler bodies are in contact and closely limit the two couplers to continuously close, and under the pulling force of the tension spring 6, when the boss 4001 on the connecting rod 4 corresponds to one boss in the cavity of the coupler head body 1 to limit, the coupler knuckle 2 of the two couplers stops rotating clockwise, and at the moment, the two couplers are connected, as shown in fig. 9.
The uncoupling process of the coupler comprises the following steps:
after the control system receives the unhooking signal, the normally-closed two-position three-port electromagnetic directional valve 11 is electrified, and air with pressure enters the inner cavity of the air cylinder 7 through the normally-closed two-position three-port electromagnetic directional valve 11, the air pipe 9 and the air pipe connector 710 respectively, as shown in fig. 5: under the action of air pressure, the piston rod 703 and the piston sleeve 702 slowly extend respectively, the steel ball 705 arranged at the front end of the piston rod 703 props against the coupler knuckle 2 to rotate clockwise, the tension spring 6 is lengthened, when the coupler knuckle 2 rotates to a certain angle, the coupler knuckle bulge 2001 contacts with the coupler yoke 4, meanwhile, the semicircular column groove on the coupler knuckle 2 also rotates to the same angle, the coupler knuckle 2 continues to rotate clockwise under the action of air cylinder thrust, the coupler yoke 4 gradually rotates out of the moving groove in the inner cavity of the coupler head body 1, the coupler knuckle 2 continues to rotate clockwise under the action of air cylinder 7 thrust, the coupler yoke 4 is propped against the coupler knuckle bulge 2001 to synchronously rotate clockwise with the coupler knuckle 2, and the coupler yoke 4 on one coupler is gradually separated from the coupler knuckle 2 of the other coupler, as shown in fig. 10, and when the piston rod 703 and the piston sleeve 702 are completely extended, the coupler yoke 4 and the coupler knuckle 2 of the other coupler are completely separated, and the coupler 2 can be mutually separated at the moment, and the uncoupling process is completed.
When the two couplers are disconnected, the normally closed two-position three-port electromagnetic directional valve 11 is powered off, the inner cavity of the two-stage cylinder assembly 7 is communicated with the silencing throttle valve for exhausting, so that the air pressure in the inner cavity of the cylinder 7 is zero relative to the air pressure outside, under the action of the tension force of the tension spring 6, the coupler knuckle 2 and the connecting rod 4 are reset, and meanwhile, the piston rod 703 and the piston sleeve rod 702 of the cylinder 7 are compressed to a contracted state to prepare for the next connecting.
In conclusion, the automatic unhooking machine designed by the invention has compact structure, small occupied space, light weight and attractive overall appearance. The coaxiality of the force application and the stress can be ensured at the contact part of the air cylinder and the coupler knuckle, and the rolling contact can be realized by adopting a simple structure, so that the push and the return of the coupler knuckle are facilitated.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The unhooking driving device comprises a cylinder (7) and is characterized in that,
The outer extending end of the piston rod assembly of the cylinder (7) is provided with a contact structure, the contact structure comprises a mounting cavity (7032) arranged on the end face of the outer extending end of the piston rod assembly, one side of a sphere center is positioned in the mounting cavity (7032), the other side of the sphere center is in stop fit with a piston baffle (706) in the axial direction of the piston rod, and the piston baffle (706) is fixed on the assembly by a fastener B (712);
The cylinder end cover (704) of the cylinder (7) is outwards protruded to form a circular boss (7041) on one side of the inner cavity of the cylinder (7), and the outer cylindrical surface of the circular boss (7041) is attached to the inner circumferential surface of the cylinder shell (701) of the cylinder (7);
the cylinder (7) is a secondary cylinder, the piston rod assembly of the secondary cylinder comprises a piston rod (703) and a piston sleeve rod (702) which are arranged in the inner cavity of the cylinder (7) from the center outwards, the outer cylindrical surface of the piston sleeve rod (702) is in sealing fit with the inner cavity of the cylinder (7) through a sealing ring A (707), and the outer cylindrical surface of the piston rod (703) is in sealing fit with the inner cavity of the piston sleeve rod (702) through a sealing ring C (709);
the mounting cavity (7032) is arranged on the piston rod (703);
The outer diameter of the piston baffle (706) is larger than the outer diameter of the small end of the piston rod (703);
An outer annular space (7012) is arranged in the middle of the matching of the inner cavity of the air cylinder (7) and the piston sleeve rod (702), and an exhaust hole A (7021) for communicating a cavity of the air cylinder (7) on the side far away from the extending end of the piston rod with the outer annular space (7012) is arranged at one end of the piston sleeve rod (702) close to an air source;
an inner annular space (7022) is arranged in the middle of the cooperation of the piston sleeve rod (702) and the piston rod (703), and an exhaust hole B (7031) for communicating a cavity of the cylinder (7) on the side far away from the extending end of the piston rod with the inner annular space (7022) is arranged at one end of the piston rod (703) close to the air source.
2. The unhooking driving device according to claim 1, wherein,
The air vent (7042) on the air cylinder end cover (704) sinks into the inner cavity of the air cylinder (7), the air pipe joint (710) is matched with the air vent (7042), and the shaft shoulder of the air pipe joint (710) is in contact with the outer side end face of the air vent (7042).
3. The unhooking driving device according to claim 1, wherein,
A weight reducing hole (7033) is arranged on the end face, far away from the extending end of the piston rod, of the piston rod (703).
4. The unhooking driving device according to any one of claims 1 to 3, wherein,
The mounting cavity (7032) is of a hemispherical structure, and a part of the piston baffle (706) which is matched with the stop of the sphere (705) is a sphere hole.
5. The unhooking driving device according to any one of claims 1 to 3, wherein,
One side, close to the extending end of the piston rod assembly, of the outer circumferential surface of a cylinder shell (701) of the cylinder (7) is a conical surface, and the small-diameter end of the conical surface is close to the extending end of the piston rod assembly.
6. An automatic uncoupling device of a coupler is characterized in that,
The device for driving the coupler knuckle to rotate of the automatic coupler uncoupling device of the coupler is the driving device of any one of claims 1-5.
7. The automatic uncoupling device of car coupler as claimed in claim 6, wherein,
The outer circumferential surface of a cylinder shell (701) of the cylinder (7) is outwards protruded to form a flange end surface (7011), the end part of a hole body, into which the air cylinder (7) is inserted, on a hook head body (1) of the automatic unhooking device of the coupler extends outwards to be connected with the flange end surface (7011), a screw penetrates through the flange end surface (7011) and then is connected with a corresponding threaded hole of the hook head body (1), and the inner wall of an extension part at the hole body is attached to the outer circumferential surface of the cylinder shell (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111340617.4A CN113911160B (en) | 2021-11-12 | Driving device for uncoupling and automatic uncoupling mechanism of coupler of driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111340617.4A CN113911160B (en) | 2021-11-12 | Driving device for uncoupling and automatic uncoupling mechanism of coupler of driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113911160A CN113911160A (en) | 2022-01-11 |
| CN113911160B true CN113911160B (en) | 2024-06-07 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE599538A (en) * | 1960-01-28 | 1961-07-26 | Stamicarbon | Device for the automatic separation of a train into units or sets each consisting of more than one wagon |
| CN201268311Y (en) * | 2008-06-26 | 2009-07-08 | 南车戚墅堰机车车辆工艺研究所有限公司 | Tightlock type uncoupling device |
| CN208576564U (en) * | 2017-12-15 | 2019-03-05 | 株洲春华实业有限责任公司 | A kind of hitch |
| CN216301077U (en) * | 2021-11-12 | 2022-04-15 | 成都肯耐特轨道交通装备有限公司 | Drive device for uncoupling and automatic uncoupling mechanism of coupler |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE599538A (en) * | 1960-01-28 | 1961-07-26 | Stamicarbon | Device for the automatic separation of a train into units or sets each consisting of more than one wagon |
| CN201268311Y (en) * | 2008-06-26 | 2009-07-08 | 南车戚墅堰机车车辆工艺研究所有限公司 | Tightlock type uncoupling device |
| CN208576564U (en) * | 2017-12-15 | 2019-03-05 | 株洲春华实业有限责任公司 | A kind of hitch |
| CN216301077U (en) * | 2021-11-12 | 2022-04-15 | 成都肯耐特轨道交通装备有限公司 | Drive device for uncoupling and automatic uncoupling mechanism of coupler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113911160B (en) | Driving device for uncoupling and automatic uncoupling mechanism of coupler of driving device | |
| CN216301077U (en) | Drive device for uncoupling and automatic uncoupling mechanism of coupler | |
| CN207161002U (en) | A kind of ultra-short radius drilling well erection device and drilling apparatus | |
| EP0631036B1 (en) | Compression release engine brake slave piston drive train | |
| US6837145B1 (en) | Fluid powered actuator | |
| CN113911160A (en) | Drive device for uncoupling and automatic uncoupling mechanism of coupler | |
| US6991210B2 (en) | Actuator for driving a valve | |
| CN210623688U (en) | Air distribution device | |
| JPH03107592U (en) | ||
| CN216279941U (en) | Swing rotary joint structure | |
| CN111156279B (en) | Hydro-pneumatic spring inflating tool | |
| CN2471466Y (en) | Hydraulic device for detaching reaming screw balt | |
| CN200940616Y (en) | Plunger hydraulic oil cylinder of braker | |
| CN208746073U (en) | A kind of Integral steering tubing string locking device | |
| CN113007426A (en) | Angle stroke double shifting fork type hydraulic actuating mechanism | |
| CN114893273A (en) | Valve driving device of engine and driving method thereof | |
| CN206984007U (en) | A kind of track traffic gyrocar steering cylinder device | |
| CN2641266Y (en) | Eccentric oil pipe anchor | |
| CN109826964A (en) | A kind of axial limit structure | |
| CN208914911U (en) | A kind of automobile swing arm of replaceable bulb | |
| CN211715451U (en) | Low-friction locking cylinder | |
| US4781105A (en) | Spring brake cylinder | |
| CN220540881U (en) | Combined valve with siphon valve | |
| CN107720546A (en) | Bearing capacity is big, can fast braking monorail crane dolly | |
| CN104071174B (en) | Rotating hook buffer device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221214 Address after: 215600 No. 38, Xionghua Road, Hengjing village, Tangqiao town, Zhangjiagang City, Suzhou City, Jiangsu Province Applicant after: Jiangsu Kenaite Rail Equipment Technology Co.,Ltd. Address before: 610000 No. 319, Xingye Avenue, East Industrial Zone, Xindu District, Chengdu, Sichuan Applicant before: Chengdu kenaite Rail Transit Equipment Co.,Ltd. |
|
| GR01 | Patent grant |