Assembly fixtures and assembly method of the bow lifting device

Abstract

This invention provides an assembly fixture and method for assembling a bow-raising device. The assembly fixture includes a base plate, a support unit, and at least two connectors. The support unit includes a first support assembly and a second support assembly. The first support assembly includes at least two first columns, and the second support assembly includes at least two second columns. Each first and second column is vertically connected to the base plate. The first columns are detachably connected to the base plate via a connector, and the second columns are connected to a truss via another connector to keep the truss in its maximum position of movement. The vertical plane where the first column connects to the base plate is parallel to the vertical plane where the second column connects to the truss. The assembly fixture for the bow-raising device provided by this invention can reduce wear on the wire rope.

Description

Technical Field

[0001] This invention relates to pantograph technology, and more particularly to an assembly fixture for a pantograph lifting device and a method for assembling the pantograph lifting device. Background Technology

[0002] The pantograph is a crucial electrical component for electric locomotives, receiving power from the overhead contact line. It is mounted on the locomotive roof via support insulators. When the pantograph head rises, the carbon sliding plate contacts the overhead contact wire, collecting current from the wire and transmitting it to the locomotive via the roof busbar. The pantograph mainly consists of a base frame, hinge mechanism, pantograph head, lifting device, and air circuit assembly. The base frame connects to the locomotive roof, and the lifting device is located at the top of the base frame. The lifting device, the power unit for the pantograph, includes a base plate, airbag assembly, and truss. One end of the airbag assembly connects to the base plate, and the other end connects to the truss, which is connected to the lower arm of the hinge mechanism via steel cables and sector plates. During air intake, the airbag inflates, pushing the truss forward. The tensioned steel cable between the truss and sector plates causes the lower arm to rotate upwards around the axis, raising the pantograph. During exhaust, the airbag retracts, and the pantograph lowers.

[0003] When installing the lifting device, connect one end of the joint assembly in the airbag assembly to the base plate, connect one end of the airbag in the airbag assembly to the base plate, and then connect the other end of the joint assembly in the airbag assembly to the truss, and finally connect the other end of the airbag in the airbag assembly to the truss.

[0004] However, this installation method causes the truss to deflect easily when the airbag assembly pushes the truss forward, resulting in severe wear on the wire rope. Summary of the Invention

[0005] This invention provides an assembly fixture and a method for assembling a bow lifting device to reduce wear on the wire rope.

[0006] In a first aspect, the present invention provides an assembly fixture for a bow lifting device. The bow lifting device includes a base plate, an airbag assembly, and a truss. The airbag assembly is connected to the base plate and the airbag assembly is connected to the truss to drive the truss to move relative to the base plate. The assembly fixture for the bow lifting device includes a fixture base plate, a support unit, and at least two connecting members.

[0007] The support unit includes a first support component and a second support component. The first support component includes at least two first columns, and the second support component includes at least two second columns. Each first column and each second column is vertically connected to the tooling base plate.

[0008] The first column is detachably connected to the base plate via a connector, and the second column is connected to the truss via another connector, so that the truss is kept in the maximum position of movement. The vertical plane where the first column is connected to the base plate is parallel to the vertical plane where the second column is connected to the truss.

[0009] In one possible implementation, the assembly fixture for the bow lifting device provided by the present invention has a first through hole on the first column, and a connector is sequentially inserted into the first through hole on one side of the base plate, the first mounting hole on the base plate, and the first through hole on the other side of the base plate; or, a connector is sequentially and alternately inserted into the first through hole and the first mounting hole on the base plate.

[0010] In one possible implementation, the assembly fixture for the bow lifting device provided by the present invention has a second through hole on the second column, and the space between the two innermost second columns is used to accommodate the truss. Another connector is sequentially inserted into the second through hole on one side of the truss, the second mounting hole on the truss, and the second through hole on the other side of the truss.

[0011] In one possible implementation, the assembly fixture for the bow lifting device provided by the present invention has the axis of the first through hole and the axis of the second through hole located in the same vertical plane, the axis of each first through hole located in the same horizontal plane, and the axis of each second through hole located in the same horizontal plane.

[0012] In one possible implementation, the assembly fixture for the bow lifting device provided by the present invention uses a pin as the connecting component.

[0013] In one possible implementation, the assembly fixture for the bow-raising device provided by the present invention has each first column and each second column located in the same vertical plane.

[0014] In one possible implementation, the assembly fixture for the bow-raising device provided by the present invention has each first column located between the two innermost second columns.

[0015] In one possible implementation, the assembly fixture for the bow lifting device provided by the present invention has a clearance hole on each of the second columns on one side of the first column. The clearance hole is coaxially arranged with the first through hole, and the projection of the first through hole toward the clearance hole is located inside the clearance hole.

[0016] In one possible implementation, the assembly fixture for the bow lifting device provided by the present invention has a first column whose height is less than or equal to half the height of the second column.

[0017] Secondly, the present invention provides a method for assembling a bow-raising device, using the assembly fixture for the bow-raising device provided in the first aspect above. The method for assembling the bow-raising device includes:

[0018] The base plate is connected to the first column via a connector;

[0019] Connect the airbag assembly to the base plate, and connect the first joint in the airbag assembly to the base plate;

[0020] Connect the truss to the second column via another connector;

[0021] Connect the airbag assembly to the truss, and connect the last joint in the airbag assembly to the truss.

[0022] The present invention provides an assembly fixture and method for assembling a lifting bow device. The assembly fixture comprises a base plate, a support unit, and at least two connectors. The support unit includes a first support assembly and a second support assembly. The first support assembly includes at least two first columns, and the second support assembly includes at least two second columns. Each first and second column is vertically connected to the base plate. The first columns are detachably connected to the base plate via a connector, and the second columns are connected to a truss via another connector, holding the truss at its maximum position of movement, i.e., the position of the truss when the airbag assembly extends to its limit. The truss and base plate are symmetrical structures. The connection points of the second columns to the truss are located on the truss's plane of symmetry, and the connection points of the first columns to the base plate are also located on the base plate's plane of symmetry. The vertical plane containing the connection points of the first columns to the base plate is parallel to the vertical plane containing the connection points of the second columns to the truss. This ensures that the plane of symmetry of the truss is parallel to the plane of symmetry of the base plate. The airbag assembly is then connected to the base plate and the truss respectively, completing the assembly of the lifting bow device. The pantograph is installed using assembly fixtures. After the base plate of the pantograph is connected to the base frame of the pantograph, the symmetrical plane of the truss is parallel to the symmetrical plane of the base plate. With the symmetrical plane of the base plate being horizontal, the symmetrical plane of the truss is also horizontal. In other words, the two connecting holes of the truss used to install the wire rope are in the same horizontal plane. In this way, when the airbag assembly pushes the truss to move, the wire rope will not rub against the side wall of the groove of the fan-shaped plate, thereby reducing the wear of the wire rope. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the bow-raising device in the prior art;

[0025] Figure 2 This is a schematic diagram of the internal structure of a bow-raising device in the prior art;

[0026] Figure 3 This is a schematic diagram of the assembly fixture for the bow lifting device provided in an embodiment of the present invention;

[0027] Figure 4 This is a front view of the assembly fixture for the bow lifting device provided in an embodiment of the present invention;

[0028] Figure 5 A left view of the assembly fixture for the bow lifting device provided in an embodiment of the present invention;

[0029] Figure 6 A diagram showing the usage state of the assembly fixture for the bow lifting device provided in an embodiment of the present invention;

[0030] Figure 7 A flowchart illustrating the assembly method of the bow-raising device provided in an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10-Base plate; 11-First mounting hole;

[0033] 20 - Airbag assembly; 21 - Airbag; 22 - Joint assembly;

[0034] 30 - Truss; 31 - Second mounting hole; 32 - Connection hole;

[0035] 100-Tooling base plate;

[0036] 200-Support Unit;

[0037] 210 - First support assembly; 211 - First column; 2111 - First through hole; 220 - Second support assembly; 221 - Second column; 2211 - Second through hole; 2212 - Clearance hole;

[0038] 300-Connector;

[0039] A-The plane of symmetry of the truss;

[0040] B - The plane of symmetry of the base plate. Detailed Implementation

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection via an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] The terms "first," "second," and "third" (if applicable) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0044] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or maintenance tool that includes a series of steps or components is not necessarily limited to those steps or components that are explicitly listed, but may include other steps or components that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Figure 1 This is a schematic diagram of the structure of the bow lifting device in the prior art. Figure 2 This is a schematic diagram of the internal structure of the bow-raising device in the prior art. (See attached diagram) Figure 1 and Figure 2 As shown, the lifting device includes a base plate 10, an airbag assembly 20, and a truss 30. The airbag assembly 20 is connected to the base plate 10 and the truss 30 to drive the truss 30 to move relative to the base plate 10.

[0047] The airbag assembly 20 includes an airbag 21 and at least one joint assembly 22. The joint assembly 22 is located within the area enclosed by the airbag 21 and can guide the airbag 21.

[0048] Specifically, the airbag 21 includes an airbag body, a first connecting flange and a second connecting flange. The first connecting flange and the second connecting flange are located at opposite ends of the airbag body. The first connecting flange has a plurality of first connecting posts, which are evenly distributed around the axis of the first connecting flange. The second connecting flange has a plurality of second connecting posts.

[0049] The joint assembly 22 includes multiple joints, which are hinged sequentially. The joints include a first joint and a last joint. The first joint is fixedly connected to the base plate 10, and the last joint is fixedly connected to the truss 30.

[0050] The base plate 10 includes a first connecting plate and a first connecting frame. The first connecting plate is connected to the first connecting frame and to a first flange to seal the airbag 21. The first connecting frame has a first mounting hole 11 for connecting to the base frame of the pantograph. Specifically, the first mounting hole 11 is a through hole. It should be noted that the axis of the first mounting hole 11 is located within the plane of symmetry B of the base plate, and the plane of symmetry B of the base plate is perpendicular to the plane of symmetry B. Figure 1 The paper is parallel.

[0051] Specifically, the first connecting plate has multiple first connecting holes, each corresponding to a first connecting post. The airbag 21 is connected to the first connecting hole on the base plate 10 through the first connecting post. In a specific implementation, the first connecting post is a stud, the first connecting hole is a through hole, and the first connecting post is connected to a nut after passing through the first connecting hole, thereby realizing the connection between the airbag 21 and the base plate 10.

[0052] Specifically, the first connecting plate of the base plate 10 has a second connecting hole for connecting with the first joint of the joint assembly 22. The second connecting hole is a through hole, and the first joint of the joint assembly 22 has a threaded hole. A screw passes through the second connecting hole and engages with the threaded hole on the first joint of the joint assembly 22, thereby connecting the first joint of the joint assembly 22 to the base plate 10. It should be noted that an adhesive, such as threadlocker, can be added to the threaded hole on the first joint of the joint assembly 22 to improve the reliability of the connection.

[0053] The truss 30 includes a second connecting plate and a second connecting frame. The second connecting plate is connected to the second connecting frame and to a second flange to seal the airbag 21. The end of the second connecting frame opposite to the second connecting plate has two connecting holes 32 located on both sides of the second connector. The connecting holes 32 are used to install steel wire ropes, and the axial direction of the connecting holes 32 is consistent with the extension direction of the truss 30. Specifically, one end of the steel wire rope is inserted into one connecting hole 32, and the other end of the steel wire rope is inserted into the other connecting hole 32 after passing through two fan-shaped plates connected to the lower arm.

[0054] It should be noted that the axes of the two connecting holes 32 are located within the symmetry plane A of the truss, and the symmetry plane A of the truss is parallel to... Figure 1 The paper is parallel.

[0055] Specifically, the first connecting plate has multiple third connecting holes, each corresponding to a second connecting post. The airbag 21 connects to the third connecting holes on the truss 30 via the second connecting posts. The second connecting plate of the truss 30 has a fourth connecting hole for connecting to the last joint of the joint assembly 22. The connection structure between the last joint of the joint assembly 22 and the truss 30 is the same as the connection structure between the first joint of the joint assembly 22 and the base plate 10, and will not be described in detail here. Similarly, the connection structure between the airbag 21 and the truss 30 is the same as the connection structure between the base plate 10 and the truss 30, and will not be described in detail here.

[0056] In the existing technology, the installation of the lifting device does not utilize tooling to define the positional relationship between the base plate 10 and the truss 30. Furthermore, for ease of installation, the diameter of the first connecting hole on the base plate 10 is larger than the diameter of the first connecting post on the airbag 21, and the diameter of the second connecting hole on the base plate 10 is larger than the threaded hole on the first joint of the joint assembly 22. Similarly, the diameter of the third connecting hole on the truss 30 is larger than the diameter of the second connecting post on the airbag 21, and the diameter of the fourth connecting hole on the truss 30 is larger than the threaded hole on the last joint of the joint assembly 22. Therefore, when installed using the existing method, the symmetrical plane A of the truss is prone to deflection relative to the symmetrical plane B of the base plate. In other words, in... Figure 1 In the middle, the two connecting holes 32 of the truss 30 used to install the wire rope are not in the same horizontal plane.

[0057] Thus, after connecting the base plate 10 of the pantograph lifting device to the base frame of the pantograph, the symmetrical plane A of the truss is not horizontal. That is, the two connecting holes 32 of the truss 30 used to install the wire rope are not on the same horizontal plane. This causes the wire rope to rub against the sidewall of the groove in the sector plate when the airbag assembly 20 pushes the truss 30. Furthermore, the high-frequency, small-amplitude up-and-down movement of the pantograph head during train operation also causes the wire rope to rub against the sidewall of the groove in the sector plate at a high frequency, accelerating wire rope wear and posing a risk of wire rope breakage and pantograph descent. Simultaneously, uneven force on the joint assembly 22 causes abnormal wear of the pins in the joint assembly 22.

[0058] To address the aforementioned technical problems, this invention provides an assembly fixture and method for assembling a pantograph lifting device. The assembly fixture includes a first support component and a second support component. The first support component is connected to a base plate 10, and the connection point is located on the base plate's symmetry plane B. The second support component is connected to a truss 30, and the connection point is located on the truss's symmetry plane A. Furthermore, the connection points of the first and second support components are parallel, ensuring that the truss's symmetry plane A is parallel to the base plate's symmetry plane B. Thus, after connecting the base plate 10 of the pantograph lifting device to the pantograph's base frame, with the base plate's symmetry plane B being horizontal, the truss's symmetry plane A is also horizontal. This means that the two connection holes 32 of the truss 30 for installing the wire rope are on the same horizontal plane. When the airbag assembly 20 pushes the truss 30, the wire rope will not rub against the sidewall of the groove in the fan-shaped plate, thereby reducing wire rope wear.

[0059] The present invention will now be described in conjunction with the accompanying drawings and specific embodiments.

[0060] Figure 3 This is a schematic diagram of the assembly fixture for the bow lifting device provided in an embodiment of the present invention. Figure 4 This is a front view of the assembly fixture for the bow lifting device provided in an embodiment of the present invention. Figure 5 This is a left view of the assembly fixture for the bow lifting device provided in an embodiment of the present invention. Figure 6 This is a diagram showing the usage state of the assembly fixture for the bow lifting device provided in an embodiment of the present invention.

[0061] See Figures 2 to 6 As shown, in order to make the plane of symmetry A of the truss 30 and the plane of symmetry B of the base plate 10 parallel, the present invention provides an assembly fixture for the bow lifting device, including a fixture base plate 100, a support unit 200 and at least two connectors 300.

[0062] The support unit 200 includes a first support component 210 and a second support component 220. The first support component 210 includes at least two first columns 211, and the second support component 220 includes at least two second columns 221. Each first column 211 and each second column 221 is vertically connected to the tooling base plate 100.

[0063] The first column 211 is detachably connected to the base plate 10 via a connector 300, and the second column 221 is connected to the truss 30 via another connector 300, so that the truss 30 is kept at the maximum position of movement. The vertical plane where the connection position of the first column 211 and the base plate 10 is located is parallel to the vertical plane where the connection position of the second column 221 and the truss 30 is located.

[0064] It should be noted that, as Figure 5 As shown, the truss 30 and the base plate 10 are symmetrical structures. The connection position of the second column 221 to the truss 30 is located on the symmetry plane A of the truss, and the connection position of the first column 211 to the base plate 10 is located on the symmetry plane B of the base plate.

[0065] For example, the tooling base plate 100 can be a rectangular plate or a circular plate, and the first column 211 and the second column 221 can be a cylindrical column or a square column. The first column 211 and the second column 221 are respectively connected to the tooling base plate 100 by welding, thereby improving the reliability of the connection between the first column 211 and the second column 221 and the tooling base plate 100.

[0066] The assembly fixture for the lifting bow device provided in this embodiment includes a fixture base plate 100, a support unit 200, and at least two connectors 300. The support unit 200 includes a first support component 210 and a second support component 220. The first support component 210 includes at least two first columns 211, and the second support component 220 includes at least two second columns 221. Each first column 211 and each second column 221 is vertically connected to the fixture base plate 100. The first column 211 is detachably connected to the base plate 10 via a connector 300, and the second column 221 is connected to the truss 30 via another connector 300, thereby keeping the truss 30 at its maximum position of movement, that is, the position of the truss 30 when the airbag assembly 20 extends to its limit position. The truss 30 and the base plate 10 are symmetrical structures. The connection point between the second column 221 and the truss 30 is located on the symmetry plane A of the truss 30, and the connection point between the first column 211 and the base plate 10 is located on the symmetry plane B of the base plate 10. The vertical plane where the connection point between the first column 211 and the base plate 10 is located is parallel to the vertical plane where the connection point between the second column 221 and the truss 30 is located. In this way, the symmetry plane A of the truss 30 is parallel to the symmetry plane B of the base plate 10. Then, the airbag assembly 20 is connected to the base plate 10 and the truss 30 respectively to complete the assembly of the bow lifting device. The pantograph is installed using assembly fixtures. After the base plate of the pantograph is connected to the base frame of the pantograph, the symmetry plane A of the truss 30 is parallel to the symmetry plane B of the base plate 10. With the symmetry plane B of the base plate 10 being a horizontal plane, the symmetry plane A of the truss 30 is also a horizontal plane. That is to say, the two connecting holes 32 of the truss 30 used to install the wire rope are in the same horizontal plane. In this way, when the airbag assembly 20 pushes the truss 30 to move, the wire rope will not rub against the side wall of the groove of the fan-shaped plate, thereby reducing the wear of the wire rope.

[0067] In one possible implementation, the first column 211 has a first through hole 2111, and a connector 300 is sequentially inserted into the first through hole 2111 on one side of the base plate 10, the first mounting hole 11 on the base plate 10, and the first through hole 2111 on the other side of the base plate 10.

[0068] Alternatively, a connector 300 may be alternately inserted into the first through hole 2111 and the first mounting hole 11 on the base plate 10.

[0069] In practice, the connector 300 is sequentially inserted into the first through hole 2111 on one side of the base plate 10, the first mounting hole 11 on the base plate 10, and the first through hole 2111 on the other side of the base plate 10. The first mounting hole 11 on the base plate 10 is used for subsequent connection with the pantograph's base frame, which improves the reliability of the installation.

[0070] In some embodiments, the second column 221 has a second through hole 2211, and the innermost two second columns 221 are used to accommodate the truss 30. Another connector 300 is sequentially inserted into the second through hole 2211 on one side of the truss 30, the second mounting hole 31 on the truss 30, and the second through hole 2211 on the other side of the truss 30.

[0071] The second connecting frame of the truss 30 has a herringbone structure and a hollow area, which serves as the second mounting hole 31. Connectors 300 are sequentially inserted into the second through hole 2211 on one side of the truss 30, the top of the hollow area, and the second through hole 2211 on the other side of the truss 30. This eliminates the need for additional mounting holes on the truss 30, allowing the use of existing truss 30 structures.

[0072] It should be noted that, for ease of processing, the first through hole 2111 is a round hole, and the second through hole 2211 is a round hole.

[0073] In this embodiment, in order to make the symmetry plane A of the truss and the symmetry plane B of the base plate coincide, and to further ensure that the steel wire rope of the airbag assembly 20 will not rub against the side wall of the groove of the fan-shaped plate when it pushes the truss 30 to move, the axis of the first through hole 2111 and the axis of the second through hole 2211 are located in the same vertical plane, the axis of each first through hole 2111 is located in the same horizontal plane, and the axis of each second through hole 2211 is located in the same horizontal plane.

[0074] In practice, for ease of installation and disassembly, connector 300 is a pin.

[0075] In this embodiment, in order to make the assembly tooling structure of the bow lifting device compact and reduce the floor space, each first column 211 and each second column 221 are located in the same vertical plane.

[0076] In one possible implementation, each of the first pillars 211 is located between the two innermost second pillars 221.

[0077] Understandably, this allows the connection state between the first column 211 and the base plate 10 to be more similar to the connection state between the base plate 10 and the pantograph's base frame, thereby improving the assembly accuracy of the pantograph raising device.

[0078] In some embodiments, each of the second columns 221 on one side of the first column 211 has a clearance hole 2212, the clearance hole 2212 is coaxially arranged with the first through hole 2111, and the projection of the first through hole 2111 toward the clearance hole 2212 is located inside the clearance hole 2212.

[0079] For example, the first through hole 2111 is a round hole, the clearance hole 2212 is a round hole, and the diameter of the clearance hole 2212 is larger than the diameter of the first through hole 2111. Alternatively, the first through hole 2111 is a round hole, the clearance hole 2212 is a square hole, and the side length of the clearance hole 2212 is larger than the diameter of the first through hole 2111.

[0080] Specifically, when installing the base plate 10, a connector 300 is inserted sequentially through the clearance hole 2212 into the first through hole 2111 on one side of the base plate 10, the first mounting hole 11 on the base plate 10, and the first through hole 2111 on the other side of the base plate 10.

[0081] After the bow lifting device is assembled, when the bow lifting device is completely removed from the support unit 200, firstly pull out the connector 300 that is sequentially inserted into the second through hole 2211 on one side of the truss 30, the second mounting hole 31 on the truss 30, and the second through hole 2211 on the other side of the truss 30. Then, pull out the connector 300 that is sequentially inserted into the first through hole 2111 on one side of the base plate 10, the first mounting hole 11 on the base plate 10, and the first through hole 2111 on the other side of the base plate 10 through the clearance hole 2212.

[0082] Understandably, this reduces the distance between the first column 211 and the second column 221, thus improving the compactness of the structure.

[0083] In one possible implementation, the height of the first column 211 is less than or equal to half the height of the second column 221.

[0084] Understandably, in order to ensure that the truss 30 can remain at its maximum position of movement, it is necessary to limit the lengths of the first column 211 and the second column 221.

[0085] Figure 7 A flowchart illustrating the assembly method of the bow-raising device provided in an embodiment of the present invention. See also... Figure 7 As shown, the present invention also provides a method for assembling a bow-raising device, using the assembly fixture for the bow-raising device provided in the above embodiments. The method for assembling the bow-raising device includes:

[0086] S101. Connect the base plate 10 to the first column 211 via a connector 300.

[0087] Specifically, a connector 300 is sequentially inserted into the first through hole 2111 on one side of the base plate 10, the first mounting hole 11 on the base plate 10, and the first through hole 2111 on the other side of the base plate 10.

[0088] S102. Connect the airbag assembly 20 to the base plate 10, and connect the first joint of the airbag assembly 20 to the base plate 10.

[0089] Specifically, first connect the first joint of the joint assembly 22 in the airbag assembly 20 to the base plate 10, and then connect the first connecting flange of the airbag 21 in the airbag assembly 20 to the base plate 10.

[0090] S103. Connect the truss 30 to the second column 221 via another connector 300.

[0091] Specifically, another connector 300 is sequentially inserted into the second through hole 2211 on one side of the truss 30, the second mounting hole 31 on the truss 30, and the second through hole 2211 on the other side of the truss 30.

[0092] S104. Connect the airbag assembly 20 to the truss 30, and connect the last joint of the airbag assembly 20 to the truss 30.

[0093] Specifically, first connect the last joint of the joint assembly 22 in the airbag assembly 20 to the base plate 10, and then connect the second connecting flange of the airbag 21 in the airbag assembly 20 to the base plate 10.

[0094] The assembly method of the pantograph lifting device provided in this embodiment of the invention involves installing the pantograph lifting device using assembly fixtures. After the base plate of the pantograph lifting device is connected to the base frame of the pantograph, the symmetry plane A of the truss 30 is parallel to the symmetry plane B of the base plate 10. With the symmetry plane B of the base plate 10 being a horizontal plane, the symmetry plane A of the truss 30 is also a horizontal plane. That is to say, the two connecting holes 32 of the truss 30 used to install the wire rope are in the same horizontal plane. In this way, when the airbag assembly 20 pushes the truss 30 to move, the wire rope will not rub against the side wall of the groove of the fan-shaped plate.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembly fixture for a bow-lifting device, the bow-lifting device comprising a base plate, an airbag assembly, and a truss, the airbag assembly being connected to the base plate and the truss being connected to drive the truss to move relative to the base plate, characterized in that, The assembly fixture for the bow lifting device includes a fixture base plate, a support unit, and at least two connecting parts; The support unit includes a first support component and a second support component. The first support component includes at least two first columns, and the second support component includes at least two second columns. Each first column and each second column is vertically connected to the tooling base plate. The first column is detachably connected to the base plate via one of the aforementioned connectors, and the second column is connected to the truss via another of the aforementioned connectors, so that the truss is kept in the maximum position of movement. The vertical plane where the connection position of the first column and the base plate is located is parallel to the vertical plane where the connection position of the second column and the truss is located. Each of the first columns and each of the second columns are located in the same vertical plane, and each of the first columns is located between the two innermost second columns.

2. The assembly fixture for the bow lifting device according to claim 1, characterized in that, The first column has a first through hole, and a connector is sequentially inserted into the first through hole on one side of the base plate, the first mounting hole on the base plate, and the first through hole on the other side of the base plate; or, a connector is sequentially and alternately inserted into the first through hole and the first mounting hole on the base plate.

3. The assembly fixture for the bow-raising device according to claim 2, characterized in that, The second column has a second through hole, and the innermost two second columns are used to accommodate the truss. Another connector is sequentially inserted into the second through hole on one side of the truss, the second mounting hole on the truss, and the second through hole on the other side of the truss.

4. The assembly fixture for the bow lifting device according to claim 3, characterized in that, The axis of the first through hole and the axis of the second through hole are located in the same vertical plane, the axis of each first through hole is located in the same horizontal plane, and the axis of each second through hole is located in the same horizontal plane.

5. The assembly fixture for the bow-raising device according to any one of claims 1 to 4, characterized in that, The connecting component is a pin.

6. The assembly fixture for the bow-raising device according to claim 2, characterized in that, Each of the second columns on one side of the first column has a clearance hole, the clearance hole is coaxially arranged with the first through hole, and the projection of the first through hole toward the clearance hole is located inside the clearance hole.

7. The assembly fixture for the bow-raising device according to any one of claims 1 to 4, characterized in that, The height of the first column is less than or equal to half the height of the second column.

8. A method for assembling a bow-raising device, characterized in that, The assembly method of the bow-lifting device using the assembly fixture of any one of claims 1 to 7 includes: The base plate is connected to the first column via a connector; The airbag assembly is attached to the base plate, and the first joint of the airbag assembly is attached to the base plate. The truss is connected to the second column via another of the aforementioned connectors; The airbag assembly is connected to the truss, and the last joint of the airbag assembly is connected to the truss.

Images