Walking trestle of soil pressure shield slag pit muck outward transporting excavator

Abstract

The utility model discloses an earth pressure shield slag pit muck outward transportation excavator walking trestle which is characterized by comprising at least two rails which are arranged on the two sides of a slag pit respectively and arranged in the length direction of the slag pit. The moving structure comprises at least two moving devices and at least one trestle, the moving devices are movably arranged on the rails, and the trestle crosses the slag pit and is fixedly connected with the moving devices on the rails. The position of the excavator above the slag pit is moved through the trestle, so that the excavator can adapt to excavators with different working radiuses, and the universality of the excavator in use is improved.

Description

Technical Field

[0001] The utility model belongs to the field of shield slag transportation construction, and more specifically relates to an earth pressure shield slag pit slag transportation excavator walking trestle. Background Art

[0002] During earth pressure shield construction, a slag pit is usually set up to accommodate the debris generated during the shield excavation process. The excavator then transfers the debris from the slag pit to a transport vehicle, which then transports it away from the site. Patent publication number CN213572126U discloses a shield excavator walking truss for transporting soil from a slag pit, including several truss units, two longitudinal beams, several cross beams, a platform and two stoppers; the truss unit includes two embedded plates, two columns and a scissor brace; the embedded plate is fixed horizontally and buried in the bottom plate of the slag pit; the two columns correspond to the two embedded plates one by one and are vertically fixed on the corresponding embedded plates; the scissor brace is fixed between the two columns; several truss units are arranged in parallel at intervals along the extension direction of the truss; the longitudinal beams are fixed on the columns of several truss units; the cross beams are arranged in a direction perpendicular to the extension direction of the truss, and several cross beams are arranged at intervals and fixed on two longitudinal beams; the platform is a plate member, covering above several truss units and fixed on several cross beams; the stopper is a rod member, arranged along the extension direction of the truss, and fixed on both sides of the platform. When the excavator walks on the truss, the speed of the excavator turning over soil in the slag pit and transporting it out can be improved, and the use efficiency of the excavator can be effectively improved. However, since the truss is arranged in the middle of the slag pit, it needs to be matched with an excavator with a specific operating radius, and the truss arranged in this way has poor versatility for the excavator. Utility Model Content

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0004] One purpose of the utility model is to provide a walking trestle for an excavator for transporting slag out of an earth pressure shield slag pit, which moves the position of the excavator above the slag pit through the trestle so that it can adapt to excavators with different operating radii, thereby increasing the versatility of the excavator.

[0005] In order to achieve these purposes and other advantages of the utility model, a walking trestle for an excavator for transporting slag from a slag pit of an earth pressure shield is provided, which comprises:

[0006] At least two tracks, the two tracks are respectively arranged on both sides of the slag pit and arranged along the length direction of the slag pit;

[0007] The mobile structure comprises at least two mobile devices and at least one trestle, wherein the mobile devices are movably arranged on a track, and the trestle spans over the slag pit and is fixedly connected to the mobile devices on the track.

[0008] Preferably, the number of tracks is 4, with 2 tracks being arranged beside each side of the slag pit to form a track row.

[0009] Preferably, there are two trestles, which are arranged in parallel, and a moving device is arranged at the end of the trestles. The two trestles are connected by a screw rod so that the two trestles can be relatively far away from or close to each other, and the moving device is a moving trolley.

[0010] Preferably, the bottom of the mobile trolley is provided with running wheels, and the running wheels are connected to the driving system to drive the mobile trolley to move on the track.

[0011] Preferably, parking limit devices are provided on the front and rear sides of the mobile vehicle.

[0012] Preferably, the parking limit device comprises:

[0013] A limit block having a wedge-shaped structure;

[0014] A connecting rod, which is an L-shaped structure, a transverse portion of which is fixedly connected to the limit block;

[0015] A telescopic rod, a fixed portion of which is fixedly connected to the trolley, and a movable portion of the telescopic rod is fixedly connected to a vertical portion of the connecting rod;

[0016] When the telescopic rod is retracted, the limit block is clamped at the connection between the running wheel and the track to prevent the running wheel from rotating; when the telescopic rod is extended, the limit block is separated from the running wheel, and the running wheel can rotate on the track.

[0017] Preferably, a limit piece is provided on the movable portion of the telescopic rod, and a first in-place sensor is provided on the moving trolley. When the movable portion of the telescopic rod is retracted, if the limit piece touches the first in-place sensor, the telescopic rod stops retracting.

[0018] Preferably, end baffles are provided at both ends of the track, and a second in-position sensor is provided on the moving trolley. When the moving trolley moves to the end of the track, if the second in-position sensor on the moving trolley touches the end baffle, the moving trolley stops moving.

[0019] The utility model at least has the following beneficial effects:

[0020] First, the utility model moves the position of the excavator above the slag pit through the trestle, so that it can adapt to excavators with different operating radiuses, thereby increasing the versatility of the excavator.

[0021] Second, the utility model drives two trestles to move closer or farther away through a screw rod, so that the utility model is suitable for excavators with different crawler track spacings.

[0022] Thirdly, the utility model provides a pair of tracks for each vehicle in the slag pit, and two mobile trolleys for supporting the trestle are provided on each pair of tracks, thereby increasing the structural stability and avoiding the shaking of the excavator during operation.

[0023] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a top view structural schematic diagram of a technical solution of the utility model;

[0025] Figure 2 It is a schematic diagram of a top view of another solution of the utility model;

[0026] Figure 3 It is a side view structural schematic diagram of a technical solution of the utility model;

[0027] Figure 4 This is an enlarged view of the structure at the telescopic rod position.

[0028] 1. Slag pit; 2. Track; 3. Moving device; 31. Moving trolley; 32. Traveling wheel; 33. Limit block; 34. Connecting rod; 35. Telescopic device; 36. Second in-place sensor; 37. First in-place sensor; 38. Limit piece; 39. Fixed frame; 4. End baffle; 5. Trestle; 6. Screw. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0030] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0031] It should be noted that in the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected and set, or detachably connected and set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The orientation or position relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0032] like Figure 1 As shown, the utility model provides an earth pressure shield slag pit slag transport excavator walking trestle, which includes:

[0033] At least two tracks, the two tracks are respectively arranged on both sides of the slag pit and arranged along the length direction of the slag pit;

[0034] The mobile structure comprises at least two mobile devices and at least one trestle, wherein the mobile devices are movably arranged on a track, and the trestle spans over the slag pit and is fixedly connected to the mobile devices on the track.

[0035] In the technical solution, when there are two tracks, one track is provided on each side of the slag pit in the length direction, and a moving device is provided on each track, and the moving device is supported on the track by at least two linearly arranged running wheels. The trestle bridge fixedly connects the two moving devices. The width of the trestle bridge is greater than the distance between the two crawler tracks of the excavator so as to support the excavator to walk and move on the trestle bridge.

[0036] The excavator can move back and forth on the trestle, and the mobile device moves on the track, so that the excavator can be moved above the slag pit at different locations.

[0037] In another technical solution, the number of tracks is 4, and 2 tracks are set beside each side of the slag pit to form a track row. In this technical solution, a moving device is set on each track, and the two moving devices on the same side of the slag pit can be fixedly connected by a connecting rod, and the moving devices on both sides of the slag pit are fixedly connected by a trestle. By increasing the number of moving devices and tracks, the structural stability of the trestle is increased.

[0038] In another technical solution, there are two trestles, which are arranged in parallel. A moving device is arranged at the end of the trestles. The two trestles are connected by a screw rod so that the two trestles can be relatively far away or close to each other. The moving device is a moving trolley.

[0039] In this technical solution, two mobile trolleys are arranged on each set of tracks on the side of the slag pit, with a total of four mobile trolleys. The mobile trolleys on both sides of the slag pit are positioned opposite to each other, so that the trolleys on both sides of the slag pit can be connected by a trestle. The width of the trestle is equal to the width of the excavator track, or slightly larger than the track width. The two trestles are connected and fixed by screws to make them suitable for excavators of different models and specifications. Specifically, the screws can drive the trestles to move closer or farther from each other, thereby achieving the purpose of being suitable for excavators of different specifications. Of course, the two trestles can also be directly fixed and connected by a fixing rod so that the spacing between them and the excavator track is equal.

[0040] In another technical solution, the bottom of the mobile trolley is provided with running wheels, and the running wheels are connected to the driving system to drive the mobile trolley to move on the track. At least two sets of running wheels are provided at the bottom of the mobile trolley. When there are two sets of running wheels, one set of running wheels is provided at the front and rear of the mobile trolley, and the running wheels support the mobile trolley on the track. The running wheels of each mobile trolley can be provided with a set of driving wheels, which are driven wheels, or each set can be provided with driving wheels. The driving system includes a motor, a reducer, a driving gear, etc., which are connected in a conventional connection method to drive the running wheels to move on the track.

[0041] In another technical solution, parking limit devices are provided on both sides of the front and rear of the mobile trolley to prevent the mobile trolley from slipping when the excavator is working.

[0042] In another technical solution, the parking limit device includes:

[0043] A limit block having a wedge-shaped structure;

[0044] A connecting rod, which is an L-shaped structure, a transverse portion of which is fixedly connected to the limit block;

[0045] A telescopic rod, a fixed portion of which is fixedly connected to the trolley, and a movable portion of the telescopic rod is fixedly connected to a vertical portion of the connecting rod;

[0046] When the telescopic rod is retracted, the limit block is clamped at the connection between the running wheel and the track to prevent the running wheel from rotating; when the telescopic rod is extended, the limit block is separated from the running wheel, and the running wheel can rotate on the track.

[0047] In the technical solution, the telescopic structure can be a hydraulic telescopic rod or a pneumatic telescopic rod. When the telescopic rod is retracted, the limit block is driven close to the running wheel and is stuck at the angle between the running wheel and the track to prevent the running wheel from rolling on the track. When the telescopic rod is extended, the limit block is away from the running wheel, so that the running wheel can roll.

[0048] In another technical solution, a limit piece is provided on the movable part of the telescopic rod, and a first in-place sensor is provided on the mobile trolley. When the movable part of the telescopic rod contracts, if the limit piece touches the first in-place sensor, the telescopic rod stops contracting. When the limit piece touches the first in-place sensor, the first in-place sensor sends a signal to the controller, and the controller controls the telescopic rod to stop moving. In some technical solutions, an alarm device is also included. After the mobile trolley stops moving, the alarm device sends an alarm signal. When the telescopic rod contracts and the limit piece touches the first in-place sensor, the first in-place sensor sends a signal to the controller, and the controller sends a signal to the alarm device, and the alarm device stops sending the alarm signal.

[0049] In another technical solution, both ends of the track are provided with end baffles, and the mobile trolley is provided with a second in-position sensor. When the mobile trolley moves to the end of the track, if the second in-position sensor on the mobile trolley touches the end baffle, the mobile trolley stops moving. When the second in-position sensor touches the end baffle, it sends a signal to the controller, and the controller controls the mobile trolley to stop moving.

[0050] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. Earth pressure shield slag pit slag transport excavator walking trestle, characterized in that: include: At least two tracks, the two tracks are respectively arranged on both sides of the slag pit and arranged along the length direction of the slag pit; wherein the number of tracks is 4, and 2 tracks are arranged beside the slag pit on each side to form a track row; A mobile structure includes at least two mobile devices and at least one trestles, wherein the mobile devices are movably arranged on a track, the trestles span the slag pit, and are fixedly connected to the mobile devices on the track; wherein there are two trestles, the two trestles are arranged in parallel, the mobile devices are arranged at the ends of the trestles, the two trestles are connected by screws so that the two trestles can be relatively far away or close, and the mobile device is a mobile trolley.

2. The earth pressure shield slag pit slag transport excavator walking trestle according to claim 1 is characterized in that: The bottom of the mobile trolley is provided with running wheels, which are connected to a driving system to drive the mobile trolley to move on the track.

3. The earth pressure shield slag pit slag transport excavator walking trestle according to claim 2 is characterized in that: Parking limit devices are provided on the front and rear sides of the mobile trolley.

4. The earth pressure shield slag pit slag transport excavator walking trestle according to claim 3, characterized in that: The parking limit device comprises: A limit block having a wedge-shaped structure; A connecting rod, which is an L-shaped structure, a transverse portion of which is fixedly connected to the limit block; A telescopic rod, a fixed portion of which is fixedly connected to the trolley, and a movable portion of the telescopic rod is fixedly connected to a vertical portion of the connecting rod; When the telescopic rod is retracted, the limit block is clamped at the connection between the running wheel and the track to prevent the running wheel from rotating; when the telescopic rod is extended, the limit block is separated from the running wheel, and the running wheel can rotate on the track.

5. The walking trestle for excavators for transporting slag from earth pressure shield slag pit according to claim 4 is characterized in that: A limit piece is arranged on the movable part of the telescopic rod, and a first in-place sensor is arranged on the moving trolley. When the movable part of the telescopic rod is retracted, if the limit piece touches the first in-place sensor, the telescopic rod stops retracting.

6. The earth pressure shield slag pit slag transport excavator walking trestle according to claim 1, characterized in that: Both ends of the track are provided with end baffles, and the moving trolley is provided with a second in-position sensor. When the moving trolley moves to the end of the track, if the second in-position sensor on the moving trolley touches the end baffle, the moving trolley stops moving.

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