A connection structure between the main truss and the traveling trolley

Abstract

The present application discloses a connection structure between a main truss and a traveling trolley, relating to the technical field of cantilever beam hanging baskets. A connection structure between a main truss and a traveling trolley includes a main truss and a traveling trolley. The traveling trolley includes a vehicle frame and wheels arranged on the vehicle frame, and the vehicle frame is movably connected to the main truss through a movable structure. The connection structure between the main truss and the traveling trolley provided by the embodiments of the present application is used to movably connect the vehicle frame of the traveling trolley to the main truss through the set movable structure, so that there is a certain degree of freedom between the traveling trolley and the main truss. When the main truss walks asymmetrically on both sides, it can prevent the problems of jamming and poor walking between the traveling trolley and the track, reduce the wear of the traveling trolley, and thus improve the service life of the traveling trolley.

Description

Technical Field

[0001] This application relates to the technical field of cantilever beam hanging baskets, and specifically relates to a connection structure between a main truss and a traveling trolley. Background Art

[0002] A cantilever beam hanging basket is an important device for constructing the beam body of large-span railway and highway prestressed concrete bridges by means of cantilever casting.

[0003] The main truss is the main device of the cantilever beam hanging basket. The main truss is arranged on the track and can move on the track. Specifically, a front support is installed at the front end of the bottom of the main truss, and the front support supports on the track. A traveling trolley is installed at the rear end of the bottom of the main truss. The traveling trolley is in rolling connection with the track through its wheels. During use, the front support bears the pressure when the main truss tilts forward, and the traveling trolley bears the tension when the main truss tilts forward. Under the combined action of the front support and the traveling trolley, the reliable connection between the main truss and the track is ensured.

[0004] Currently, the frame of the traveling trolley and the main truss are rigidly connected by welding. When the main truss moves asymmetrically on the left and right sides of the track, problems such as jamming and poor movement between the traveling trolley and the track are likely to occur, increasing the wear of the traveling trolley and reducing the service life of the traveling trolley. Summary of the Invention

[0005] The purpose of this application is to provide a connection structure between a main truss and a traveling trolley to solve the problems of jamming and poor movement between the traveling trolley and the track.

[0006] The technical solution adopted by this application to solve its technical problems is:

[0007] A connection structure between a main truss and a traveling trolley, including a main truss and a traveling trolley. The traveling trolley includes a frame and wheels arranged on the frame. The frame is movably connected to the main truss through a movable structure.

[0008] Further, the movable structure includes a movable seat, a first pivot shaft, and a second pivot shaft; the frame is pivotally connected to the movable seat through the first pivot shaft, and the movable seat is pivotally connected to the main truss through the second pivot shaft; both the first pivot shaft and the second pivot shaft are horizontally arranged and perpendicular to each other.

[0009] Further, one of the first pivot shaft and the second pivot shaft is parallel to the rotation center line of the wheel.

[0010] Further, the movable seat includes a first connection seat and a second connection seat connected to the first connection seat. The frame is pivotally connected to the first connection seat through the first pivot shaft, and the second connection seat is pivotally connected to the main truss through the second pivot shaft.

[0011] Further, the first connecting seat includes two first suspension plates arranged in parallel, the second connecting seat includes two second suspension plates arranged in parallel, and the two first suspension plates are connected to the two second suspension plates.

[0012] Further, the plate surface of the first suspension plate is perpendicular to the plate surface of the second suspension plate.

[0013] Further, the two second suspension plates are arranged between the two first suspension plates.

[0014] Further, the first suspension plate and the second suspension plate are made of Q235 steel.

[0015] Further, the first pivot shaft and the second pivot shaft are respectively steel rod pins.

[0016] Further, the steel rod pin is made of 40Cr steel.

[0017] Advantages of the present application:

[0018] The connection structure between the main truss and the traveling trolley provided by the embodiment of the present application, by setting an active structure for movably connecting the frame of the traveling trolley to the main truss, enables a certain degree of freedom between the traveling trolley and the main truss. When the main truss walks asymmetrically on both sides, it can prevent problems such as jamming and poor walking between the traveling trolley and the track, reduce the wear of the traveling trolley, and thus improve the service life of the traveling trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the structure of the main truss provided by the embodiment of the present application arranged on the track;

[0021] Figure 2 It is a partial enlarged view of the connection between the main truss and the track through the traveling trolley provided by the embodiment of the present application;

[0022] Figure 3 It is Figure 2 the left view of

[0023] Figure 4 It is Figure 3 the exploded view of

[0024] Figure 5 It is a schematic diagram of a movable structure;

[0025] Figure 6 is Figure 5 the left view of.

[0026] Reference numerals:

[0027] 1 - Track;

[0028] 2 - Front support;

[0029] 10 - Main truss;

[0030] 11 - Traveling trolley; 111 - Frame; 112 - Wheels;

[0031] 12 - Movable structure;

[0032] 121 - Movable seat; 122 - First pivot; 123 - Second pivot; 124 - First connecting seat; 125 - Second connecting seat; 126 - First suspension plate; 127 - Second suspension plate. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application.

[0034] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. And without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0035] In the description of the embodiments of this application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. The terms "arranged", "provided with", "installed", "connected", "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements.

[0036] See Figure 1, a front support 2 is installed at the front end of the bottom of the main truss 10. The front support 2 is supported on the track 1 and can move on the track 1. A traveling trolley 11 is installed at the rear end of the bottom of the main truss 10. The traveling trolley 11 is in rolling connection with the track 1 through its wheels 112. During use, the front support 2 bears the pressure when the main truss 10 inclines forward, and the traveling trolley 11 bears the tension when the main truss 10 inclines forward. Under the combined action of the front support 2 and the traveling trolley 11, the reliable connection between the main truss 10 and the track 1 is ensured.

[0037] Currently, the frame 111 of the traveling trolley 11 and the main truss 10 are rigidly connected by welding. This rigid connection method has the following problems: 1. When the main truss 10 walks asymmetrically on the left and right sides of the track 1, due to the rigid connection between the main truss 10 and the frame 111 and there is no degree of freedom between them, it is easy to cause problems such as jamming and poor walking between the traveling trolley 11 and the track 1, increasing the wear of the traveling trolley 11 and reducing the service life of the traveling trolley 11; 2. Rigid connection is not easy to release stress, and has high requirements for the welding quality of the weld at the connection position between the frame 111 and the main truss 10. Repeated use for a long time is likely to cause stress damage and deformation at the connection point between the frame 111 and the main truss 10.

[0038] To solve the above problems, the embodiment of the present application provides a connection structure between a main truss and a traveling trolley, including a main truss 10 and a traveling trolley 11. The traveling trolley 11 includes a frame 111 and wheels 112 arranged on the frame 111. The frame 111 is movably connected to the main truss 10 through a movable structure 12.

[0039] See Figure 2 , Figure 3 , Figure 4 , the traveling trolley 11 includes a frame 111 and wheels 112. The frame 111 is used to connect with the main truss 10, and the wheels 112 are installed on the frame 111 for rolling connection with the track 1. Exemplarily, the frame 111 is movably connected to the main truss 10 through a movable structure 12, so that there is a certain degree of freedom between the frame 111 and the main truss 10 by using non-rigid connection; two groups of wheels 112 are arranged on the frame 111, and the two groups of wheels 112 are respectively located on both sides of the track 1. Each group of wheels 112 includes at least two wheels 112 along the extending direction of the track 1. The outer peripheral surface of each wheel 112 contacts the top plate of the track 1. In this way, the main truss 10 is connected to the track 1 through the traveling trolley 11 to utilize the traveling trolley 11 to bear the tension when the main truss 10 inclines forward, and the traveling trolley 11 can also move along the track 1.

[0040] A connection structure between a main truss and a traveling trolley provided by an embodiment of the present application, by providing a movable structure 12 for movably connecting the frame 111 of the traveling trolley 11 to the main truss 10, not only enables a certain degree of freedom between the traveling trolley 11 and the main truss 10, but also makes it easy to release stress between the traveling trolley 11 and the main truss 10. And when the main truss 10 walks asymmetrically on both sides, it can prevent problems such as jamming and poor walking between the traveling trolley 11 and the track 1, reducing the wear of the traveling trolley 11, and thus improving the service life of the traveling trolley 11. During the walking process of the main truss 10, the position change of the movable structure 12 can also be directly observed by the human eye to judge the problem of unbalanced walking of the main truss 10, achieving the purpose of immediate deviation correction.

[0041] See Figure 2 、 Figure 3 、 Figure 4 As shown in

[0042] A connection structure between a main truss and a traveling trolley provided by an embodiment of the present application, the frame 111 is pivotally connected to the movable seat 121 through the first pivot 122, so that the frame 111 and the movable seat 121 can rotate relative to the first pivot 122. The movable seat 121 is pivotally connected to the main truss 10 through the second pivot 123, so that the movable seat 121 and the main truss 10 can rotate relative to the second pivot 123. By arranging the first pivot 122 and the second pivot 123 horizontally and perpendicular to each other, the degree of freedom of the traveling trolley 11 and the main truss 10 in the horizontal plane can be adjusted. By connecting the frame 111, the movable seat 121 and the main truss 10 through the pivot, compared with the traditional welding connection, when installing and removing, there is no need for repeated welding and cutting, which is convenient for the repeated use of materials.

[0043] Exemplarily, the movable structure 12 can also be a ball hinge, and the ball hinge is used to realize the movable connection between the frame 111 and the main truss 10.

[0044] See Figure 5 、 Figure 6, the movable seat 121 includes a first connecting seat 124 and a second connecting seat 125 connected to the first connecting seat 124. The frame 111 is pivotally connected to the first connecting seat 124 through a first pivot 122, and the second connecting seat 125 is pivotally connected to the main truss 10 through a second pivot 123. For example, the first connecting seat 124 includes two first suspension plates 126 arranged in parallel, and the second connecting seat 125 includes two second suspension plates 127 arranged in parallel. The two first suspension plates 126 are connected to the two second suspension plates 127. Of course, in other embodiments, the first connecting seat 124 and the second connecting seat 125 may also be of other structures, as long as the installation requirements can be met, and no specific limitations are made here.

[0045] Exemplarily, the plate surface of the first suspension plate 126 is perpendicular to the plate surface of the second suspension plate 127. The two second suspension plates 127 are arranged between the two first suspension plates 126, and the two second suspension plates 127 are connected to the two first suspension plates 126 by welding. Among them, the connection part of any two suspension plates is continuously and fully welded, and the weld thickness is at least 8 mm. The suspension plates can be directly produced and welded together in the factory to avoid on-site welding.

[0046] Exemplarily, the materials of the first suspension plate 126 and the second suspension plate 127 are Q235 steel. Of course, the first suspension plate 126 and the second suspension plate 127 may also be made of other materials, as long as the strength and stiffness requirements are met, and no specific limitations are made here. The first suspension plate 126 and the second suspension plate 127 can be made of steel plates with a thickness of at least 20 mm.

[0047] Exemplarily, the first pivot 122 and the second pivot 123 are respectively steel rod pins, and anti-disengagement protection devices are provided at both ends of the steel rod pins. The material of the steel rod pins is 40Cr steel. Of course, the steel rod pins may also be made of other materials, as long as the strength and stiffness requirements are met, and no specific limitations are made here.

[0048] The above is only a preferred embodiment of the present application, and does not impose any form of limitation on the present application. According to the technical essence of the present application, any simple modifications, equivalent replacements, and improvements made to the above embodiments within the spirit and principle of the present application still belong to the protection scope of the technical solution of the present application.

Claims

1. A connecting structure between a main truss and a traveling trolley, comprising a main truss (10) and a traveling trolley (11), wherein the traveling trolley (11) includes a vehicle frame (111) and wheels (112) provided on the vehicle frame (111), and is characterized in that, The frame (111) is movably connected to the main truss (10) through a movable structure (12); The movable structure (12) includes a movable seat (121), a first pivot (122) and a second pivot (123); the frame (111) is pivotally connected to the movable seat (121) through the first pivot (122), and the movable seat (121) is pivotally connected to the main truss (10) through the second pivot (123); both the first pivot (122) and the second pivot (123) are horizontally arranged and perpendicular to each other; One of the first pivot (122) and the second pivot (123) is parallel to the rotation center line of the wheel (112); The movable seat (121) includes a first connecting seat (124) and a second connecting seat (125) connected to the first connecting seat (124). The frame (111) is pivotally connected to the first connecting seat (124) through the first pivot (122), and the second connecting seat (125) is pivotally connected to the main truss (10) through the second pivot (123); The first connecting seat (124) includes two first suspension plates (126) arranged in parallel, and the second connecting seat (125) includes two second suspension plates (127) arranged in parallel. The two first suspension plates (126) are connected to the two second suspension plates (127); The plate surface of the first suspension plate (126) is perpendicular to the plate surface of the second suspension plate (127); The two second suspension plates (127) are arranged between the two first suspension plates (126); The first pivot (122) and the second pivot (123) are respectively steel bar pins.

2. The connecting structure between a main truss and a traveling trolley according to claim 1, characterized in that, The materials of the first suspension plate (126) and the second suspension plate (127) are Q235 steel.

3. The connecting structure between a main truss and a traveling trolley according to claim 1, characterized in that, The material of the steel bar pin is 40Cr steel.

Images