Hydraulic self-walking trestle

Abstract

The utility model relates to a hydraulic self-walking trestle which comprises a trestle main body and a walking trolley, the bottom of one end of the trestle main body is connected with a supporting roller, the two ends of the trestle main body are respectively provided with a liftable supporting leg, the bottom of one end of the trestle main body is provided with a supporting roller, and the walking trolley is movably connected to the trestle main body. The walking trolley is also provided with a liftable supporting leg; a hydraulic motor is fixed to the walking trolley, a driving gear is fixed to the output end of the hydraulic motor, a rack is fixed to the trestle body in the length direction of the trestle body, and the rack is meshed with the driving gear. According to the utility model, the hydraulic motor is adopted as a driving mechanism, and the hydraulic motor has extremely small inertia when being stopped, so that the hydraulic motor can be stopped at the same time, inertial impact on the gear and the rack is basically avoided, and the service life of the equipment is longer.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction machinery technology, specifically to a hydraulic self-propelled trestle. Background Technology

[0002] In tunnel invert construction, trestle bridges are required. Current technology moves these trestle bridges by installing a motor on a trolley, which drives sprockets and chains to move the trestle bridge and the trolley itself. However, when the motor stops, it retains some inertia, causing the sprockets to rotate due to inertia, resulting in inertial impact and damage to the sprockets and chains. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a hydraulic self-propelled trestle.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A hydraulic self-propelled trestle includes a trestle body and a traveling trolley. A support roller is connected to the bottom of one end of the trestle body, and liftable support legs are provided at both ends of the trestle body. The traveling trolley is movably connected to the trestle body and also has liftable support legs. A hydraulic motor is fixed to the traveling trolley, and a drive gear is fixed to the output end of the hydraulic motor. A rack is fixed to the trestle body along its length, and the rack meshes with the drive gear.

[0006] Furthermore, the traveling trolley is equipped with upper rollers and lower guide rollers on both sides, and the upper rollers and lower guide rollers on both sides are respectively in rolling cooperation with the corresponding upper guide rails and lower guide rails on the main body of the trestle.

[0007] This utility model adopts the above technical solution and uses a hydraulic motor as the drive mechanism. The hydraulic motor has very little inertia when it stops, so it can stop immediately and will not cause inertial impact to the gears and racks, thus extending the service life of the equipment. Attached Figure Description

[0008] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0009] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0010] like Figure 1As shown, this utility model discloses a hydraulic self-propelled trolley, comprising a trolley body 1 and a traveling trolley 2. A support roller 3 is connected to the bottom of one end of the trolley body 1, and both ends of the trolley body 1 are respectively provided with liftable support legs (not shown in the figure). The traveling trolley 2 is movably connected to the trolley body 1 and is also provided with liftable support legs. When the trolley body 1 is supported on a support surface, the traveling trolley 2 moves along the trolley body 1; when the traveling trolley 2 is supported on the support surface, it drives the trolley body 1 to move.

[0011] A hydraulic motor 4 is fixed on the traveling trolley 2. A drive gear 5 is fixed at the output end of the hydraulic motor 4. A rack 6 is fixed on the main body of the trestle 1 along its length direction. The rack 6 meshes with the drive gear 5.

[0012] Furthermore, the traveling trolley 2 is equipped with upper rollers 7 and lower guide rollers 8 on both sides, and the upper rollers and lower guide rollers 8 on both sides are respectively in rolling cooperation with the corresponding upper guide rails and lower guide rails on the main body of the trestle 1.

[0013] This invention uses a hydraulic motor 4 as the drive mechanism. The hydraulic motor 4 has very little inertia when it stops, so it can stop instantly and will not cause inertial impact to the gears and racks, thus extending the service life of the equipment.

[0014] The specific embodiments of this utility model have been described above. However, those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this embodiment without departing from the principle and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A hydraulic self-propelled trestle, comprising a trestle body and a traveling trolley, wherein a support roller is connected to the bottom of one end of the trestle body, and liftable support legs are respectively provided at both ends of the trestle body; the traveling trolley is movably connected to the trestle body, and also provided with liftable support legs; characterized in that: A hydraulic motor is fixed on the traveling trolley, and a drive gear is fixed to the output end of the hydraulic motor. A rack is fixed on the main body of the trestle along its length, and the rack meshes with the drive gear.

2. The hydraulic self-propelled trestle according to claim 1, characterized in that: The traveling trolley is equipped with upper rollers and lower guide rollers on both sides, and the upper rollers and lower guide rollers on both sides are respectively in rolling cooperation with the corresponding upper guide rails and lower guide rails on the main body of the trestle.

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