Frame trolley suitable for sleeper replacement of steel beam open bridge floor

Abstract

The utility model discloses a frame trolley adaptive to sleeper replacement of a steel beam open bridge floor, which is characterized in that the frame trolley comprises a pair of walking frames, and the two walking frames are arranged in parallel; the suspender and the plurality of connecting rods are respectively connected between the two walking frames; the plurality of walking wheels are respectively mounted at the bottom of the walking frame, so that the walking frame can move along a walking track of an open bridge floor; and the lifting hole is connected to the lifting rod and used for installing a chain hoist, and the bridge sleeper is lifted and carried on the walking track through the lifting hole and the walking wheels by the walking frame. The frame trolley has the advantages that the frame trolley can be used for transporting and installing the bridge sleeper on the steel beam open bridge floor, the working efficiency of replacing the composite material bridge sleeper can be improved, manpower is saved, meanwhile, the skylight occupancy rate can be reduced, and the influence on railway transportation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of protective frames, in particular to a frame trolley suitable for replacing sleepers on steel beam exposed bridge decks. Background Art

[0002] Wooden sleepers, with their advantages of light weight, good elasticity, excellent insulation, ease of manufacture, minimal impact from ambient temperature fluctuations, and simple replacement, were widely used in the early days of railway construction worldwide. Early steel truss bridges in my country almost all employed exposed-deck wooden sleeper structures. However, long-term use of wooden sleepers on exposed steel bridge decks has exposed numerous shortcomings: they are susceptible to corrosion and cracking, have a short service life, and experience significant quality variation, typically lasting only 5-10 years, with some low-quality sleepers lasting only 1-2 years. Furthermore, wooden sleepers have poor surface bearing capacity and are not environmentally friendly due to corrosion resistance. Furthermore, their attachments suffer from poor fastener retention, prone to loosening spikes, and prone to loosening and misalignment of hook bolts. These shortcomings contribute to poor track stability on exposed steel bridge decks, rapid degradation and significant variation in the connection between sleepers, the bridge deck, and the rails, high vibration response, and a significant maintenance workload. With the continuous increase in operating speed, axle load and transportation volume of existing lines, the maintenance workload of wooden sleepers on the exposed deck of steel bridges has increased exponentially, and the contradiction with the existing skylight maintenance model has become increasingly prominent. In addition, the wood resources that meet the requirements for sleeper use are relatively scarce. Therefore, it is necessary to adopt a new type of composite material synthetic sleeper to replace wooden sleepers. Compared with wooden sleepers, although composite sleepers have the advantages of high strength, corrosion resistance, long service life, good gauge retention ability, flexible fastener installation, and mechanized and continuous production, composite sleepers have the disadvantage of being heavier than wooden sleepers. As a result, replacing composite sleepers in the narrow working space of the exposed deck of steel beam bridges takes a long time, seriously delays work, occupies more skylights, and has a greater impact on railway transportation. Utility Model Content

[0003] The purpose of this utility model is to provide a frame trolley suitable for replacing sleepers on steel beam open bridge decks based on the above-mentioned deficiencies of the existing technology. By designing a frame trolley suitable for replacing sleepers on steel beam open bridge decks, the purpose is to improve the work efficiency of replacing composite material sleepers, reduce manual work, reduce the occupancy rate of skylights, and reduce the impact on railway transportation. The entire device is reasonably designed and easy to use.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A frame trolley adapted for replacing sleepers on a steel beam exposed bridge deck, wherein the frame trolley comprises:

[0006] A pair of running frames, the two running frames are arranged in parallel;

[0007] A boom and a plurality of connecting rods are respectively connected between the two traveling frames;

[0008] a plurality of running wheels, respectively mounted on the bottom of the running frame so that the running frame can move along the running track of the open bridge deck; and

[0009] The lifting hole is connected to the lifting rod and used to install the chain hoist. The traveling frame lifts and transports the bridge sleeper on the traveling track through the lifting hole and the traveling wheel.

[0010] Optionally, each of the traveling frames includes:

[0011] lower frame;

[0012] an upper frame connected above the lower frame; and

[0013] The running wheels are mounted on the bottom of the lower frame.

[0014] Optionally, the lower frame includes:

[0015] The lower horizontal rod is arranged horizontally;

[0016] Two vertical poles are connected to the two ends of the lower horizontal pole respectively; and

[0017] The running wheel is connected to the bottom of the vertical pole.

[0018] Optionally, the vertical pole is vertically connected to the lower horizontal pole through a lower horizontal pole connecting piece, and the upper end of the vertical pole is connected to the lower horizontal pole, and the lower end of the vertical pole is connected to the running wheel.

[0019] Optionally, the upper frame includes:

[0020] The upper horizontal rod is arranged horizontally;

[0021] Two oblique rods are connected to the two ends of the upper horizontal rod respectively;

[0022] The upper end of the oblique rod is connected to the upper horizontal rod, and the lower end of the oblique rod is connected to the lower horizontal rod.

[0023] Optionally, the oblique rod is obliquely connected to the upper horizontal rod through an upper horizontal oblique rod connecting piece.

[0024] Optionally, the lower frame is a rectangular structure, and the upper frame is an isosceles trapezoidal structure.

[0025] Optionally, the connecting rod is arranged in a horizontal state and its two ends are respectively connected to the vertical rods in the two lower frames.

[0026] Optionally, the suspension rod is arranged in a horizontal state and its two ends are respectively connected to the upper horizontal rods in the two upper frames.

[0027] Optionally, a working space is formed between the two traveling frames, the boom and the connecting rod.

[0028] The advantages of the utility model are:

[0029] The frame trolley of the utility model, which is suitable for replacing sleepers on steel beam exposed bridge decks, can transport and install sleepers on steel beam exposed bridge decks, which can not only improve the work efficiency of replacing composite material sleepers and save manpower, but also reduce the occupancy rate of skylights and reduce the impact on railway transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of a frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to the present invention;

[0031] Figure 2 This is a schematic diagram of the use status of the frame trolley of the utility model suitable for replacing sleepers on steel beam exposed bridge decks. DETAILED DESCRIPTION

[0032] The marks in the figure are: suspension rod 1, upper horizontal rod 2, inclined rod 3, lower horizontal rod 4, vertical rod 5, connecting rod 6, running wheel 7, suspension hole 8, upper horizontal inclined rod connecting piece 9, lower horizontal vertical rod connecting piece 10 and running track 11.

[0033] Example: See Figure 1 and Figure 2 As shown, an embodiment of a frame trolley suitable for replacing sleepers on an open bridge deck of a steel beam is shown, wherein the frame trolley includes a pair of running frames, which are arranged in parallel between the two running frames; a hanger 1 and a plurality of connecting rods 6, which are respectively connected between the two running frames; a plurality of running wheels 7, which are respectively installed at the bottom of the running frames so that the running frames can move along the running track 11 of the open bridge deck; and a lifting hole 8, which is connected to the hanger 1 and is used to install a chain hoist, and the running frame lifts and transports the bridge sleepers on the running track 11 through the lifting hole 8 and the running wheels 7.

[0034] In this embodiment, each running frame includes a lower frame; an upper frame connected to the upper part of the lower frame; and running wheels 7 installed at the bottom of the lower frame.

[0035] In this embodiment, the lower frame includes a lower horizontal rod 4 arranged horizontally; two vertical rods 5 respectively connected to the two ends of the lower horizontal rod 4; and running wheels 7 connected to the bottom of the vertical rods 5.

[0036] In this embodiment, the vertical pole 5 is vertically connected to the lower horizontal pole 4 through the lower horizontal pole connector 10 , and the upper end of the vertical pole 5 is connected to the lower horizontal pole 4 , and the lower end of the vertical pole 5 is connected to the running wheel 7 .

[0037] In this embodiment, the upper frame includes an upper horizontal rod 2, which is arranged horizontally; two oblique rods 3, which are respectively connected to the two ends of the upper horizontal rod 2; the upper end of the oblique rod 3 is connected to the upper horizontal rod 2, and the lower end of the oblique rod 3 is connected to the lower horizontal rod 4.

[0038] In this embodiment, the oblique rod 3 is obliquely connected to the upper horizontal rod 2 through the upper horizontal oblique rod connecting member 9.

[0039] In this embodiment, the lower frame is a rectangular structure, and the upper frame is an isosceles trapezoidal structure.

[0040] In this embodiment, the connecting rod 6 is arranged in a horizontal state and its two ends are respectively connected to the vertical rods 5 in the two lower frames.

[0041] In this embodiment, the suspension rod 1 is arranged in a horizontal state and its two ends are respectively connected to the upper horizontal rods 2 in the two upper frames.

[0042] In this embodiment, a working space is formed between the two traveling frames, the suspension rod 6 and the connecting rod 1.

[0043] The following description will further explain the characteristics and functions of the present invention.

[0044] This embodiment designs a frame trolley suitable for replacing sleepers on steel beam exposed bridge decks. The trolley comprises a hanger 1, an upper horizontal bar 2, an inclined bar 3, a lower horizontal bar 4, a vertical bar 5, a connecting rod 6, a running wheel 7, a lifting eye 8, an upper horizontal and inclined bar connecting rod 9, a lower horizontal and vertical bar connecting rod 10, and a running track 11. The running wheel 7 is bolted to the vertical bar 5. The vertical bars 5 are connected to each other via the lower horizontal bar 4 and the connecting rod 6 to form a lower frame. The lower frame is connected to the upper horizontal bar 2 via the inclined bar 3. The lifting eye 8 is bolted to the hanger 1 and the lower frame. Finally, a chain hoist (finished product) is secured to the lifting eye 8. The resulting frame trolley travels on a running track 11 laid on the sidewalk. Using this trolley for transporting and installing sleepers on bridges significantly saves manpower and time. The frame trolley meets load-bearing requirements, utilizes standard materials, has reasonable dimensions, is lightweight, and is easy to transport and assemble. The total height and width of the sleeper replacement frame trolley do not intrude upon the adjacent railway construction limits. A running track is installed on the bridge's walking plank. Once the frame trolley is assembled on the bridge, only two people are required to push and operate the frame trolley and crane to lift, transport, and install the sleepers.

[0045] In summary, the frame trolley of the present invention meets load-bearing requirements, utilizes standard materials, has reasonable dimensions, is lightweight, and is easy to transport and assemble. Its overall height and width do not infringe upon the construction limits of adjacent railway lines. Once the bridge's walking plank is equipped with a running track, the frame trolley, once assembled on the bridge, requires only two people to push and operate the gantry truck and crane to lift, transport, and install the sleepers. Using this frame trolley to transport and replace sleepers on the bridge significantly saves manpower and time during the "skylight" (the time reserved for construction and maintenance work on operating lines when train lines are not drawn, adjusted, or reduced in the train timeline) and reduces the impact on railway transportation.

[0046] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A frame trolley suitable for replacing sleepers on steel beam exposed bridge decks, characterized in that: The frame trolley comprises: A pair of running frames, the two running frames are arranged in parallel; A boom and a plurality of connecting rods are respectively connected between the two traveling frames; a plurality of running wheels, respectively mounted on the bottom of the running frame so that the running frame can move along the running track of the open bridge deck; and The lifting hole is connected to the lifting rod and used to install the chain hoist. The traveling frame lifts and transports the bridge sleeper on the traveling track through the lifting hole and the traveling wheel.

2. The frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to claim 1 is characterized in that: Each of the running frames comprises: lower frame; an upper frame connected above the lower frame; and The running wheels are mounted on the bottom of the lower frame.

3. The frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to claim 2 is characterized in that: The lower frame includes: The lower horizontal rod is arranged horizontally; Two vertical poles are connected to the two ends of the lower horizontal pole respectively; and The running wheel is connected to the bottom of the vertical pole.

4. The frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to claim 3 is characterized in that: The vertical pole is vertically connected to the lower horizontal pole through a lower horizontal pole connecting piece, and the upper end of the vertical pole is connected to the lower horizontal pole, and the lower end of the vertical pole is connected to the running wheel.

5. The frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to claim 4 is characterized in that: The upper frame comprises: The upper horizontal rod is arranged horizontally; Two oblique rods are connected to the two ends of the upper horizontal rod respectively; The upper end of the oblique rod is connected to the upper horizontal rod, and the lower end of the oblique rod is connected to the lower horizontal rod.

6. The frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to claim 5 is characterized in that: The oblique rod is obliquely connected to the upper horizontal rod through an upper horizontal oblique rod connecting piece.

7. The frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to claim 2 is characterized in that: The lower frame is in a rectangular structure, and the upper frame is in an isosceles trapezoidal structure.

8. The frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to claim 4 is characterized in that: The connecting rod is arranged in a horizontal state and both ends are respectively connected to the vertical rods in the two lower frames.

9. The frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to claim 5 is characterized in that: The suspension rod is arranged in a horizontal state and its two ends are respectively connected to the upper horizontal rods in the two upper frames.

10. The frame trolley adapted for replacing sleepers on steel beam exposed bridge decks according to claim 1 is characterized in that: A working space is formed between the two traveling frames, the boom and the connecting rod.

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