Lifting gap bridge at tail of reversed loader

Abstract

The utility model discloses a tail lifting gap bridge of a reversed loader. At present, the tail of the reversed loader needs to be provided with a pedestrian gap bridge, the used pedestrian gap bridge is only simply lapped above a chute, the gap bridge cannot be lifted, a person directly passes through the tail, and a coal baffle plate of the tail of the reversed loader is high and is easy to slip, fall and hurt. The reversed loader tail lifting gap bridge comprises a reversed loader chute, the top of the reversed loader chute is provided with the reversed loader tail lifting gap bridge, the reversed loader tail lifting gap bridge comprises a lifting oil cylinder, a gap bridge assembly and a reversed loader spillplate, and the bottom of the lifting oil cylinder is connected with lower channel steel through a pin shaft. The top of a telescopic rod of the lifting oil cylinder is connected with upper channel steel below the gap bridge assembly through a pin shaft, and an oil cylinder body of the lifting oil cylinder is inserted into an insertion plate on a reversed loader spillplate to play a role in positioning the lifting oil cylinder; the bottom of the reversed loader spillplate and the bottom of the lower steel channel are fixedly connected with the top end face of the reversed loader chute. The utility model is applied to the field of coal mine reversed loaders.

Description

TECHNICAL FIELD

[0001] The utility model is applied to the field of coal mine transfer machine, and particularly relates to a transfer machine tail lifting overbridge. BACKGROUND

[0002] The transfer machine overbridge is a component playing a key connecting role in a coal and other material conveying system. The main function is to serve as a personnel walking channel, facilitating the equipment inspection, maintenance and operation of workers in the transfer machine area, connecting different parts of the transfer machine, enabling smooth material transfer between various equipment, and realizing continuous production operation. Some overbridges are also equipped with safety facilities such as guardrails to ensure the safety of personnel walking thereon.

[0003] Therefore, a pedestrian overbridge is usually installed at the tail of the transfer machine. The currently used pedestrian overbridge is simply lapped above the chute, and the overbridge cannot be lifted. Personnel directly cross the tail of the transfer machine. Since the coal blocking plate at the tail of the transfer machine is high, personnel are prone to slipping and falling and getting injured. Manual installation of the simple overbridge is labor-intensive, and the space through which personnel pass is narrow, and personnel are prone to injury when installing the overbridge. If the overbridge is installed and fixed, when large pieces of coal are pulled out of the rear chute during production, the fixed overbridge is easily damaged due to the height limitation of the overbridge, resulting in increased maintenance costs. Therefore, the overbridge is often removed during production, and is installed when personnel pass through, which makes the work very tedious and increases the workload of maintenance personnel. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a transfer machine tail lifting overbridge.

[0005] The above-mentioned purpose is achieved by the following technical solutions:

[0006] A transfer machine tail lifting overbridge, which comprises a transfer machine chute, a transfer machine tail lifting overbridge installed on the top of the transfer machine chute, a lifting oil cylinder, an overbridge assembly, and a transfer machine coal blocking plate.

[0007] The bottom of the transfer machine coal blocking plate and the bottom of the lower channel steel are fixedly connected to the top end surface of the transfer machine chute, and the side surface of the transfer machine coal blocking plate is fixedly connected to the side surface of the lower channel steel.

[0008] The tail lifting overbridge of the transfer machine comprises an overbridge platform, an upper channel steel, a protective handrail and a wiring steel pipe, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail.

[0009] The tail lifting overbridge of the transfer machine comprises an overbridge platform, an upper channel steel, a protective handrail and a wiring steel pipe, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail.

[0010] The tail lifting overbridge of the transfer machine comprises an overbridge platform, an upper channel steel, a protective handrail and a wiring steel pipe, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail.

[0011] The tail lifting overbridge of the transfer machine comprises an overbridge platform, an upper channel steel, a protective handrail and a wiring steel pipe, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail.

[0012] The tail lifting overbridge of the transfer machine comprises an overbridge platform, an upper channel steel, a protective handrail and a wiring steel pipe, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail.

[0013] The tail lifting overbridge of the transfer machine comprises an overbridge platform, an upper channel steel, a protective handrail and a wiring steel pipe, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail.

[0014] The tail lifting overbridge of the transfer machine comprises an overbridge platform, an upper channel steel, a protective handrail and a wiring steel pipe, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail.

[0015] The tail lifting overbridge of the transfer machine comprises an overbridge platform, an upper channel steel, a protective handrail and a wiring steel pipe, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the principles of the present application, and should not be considered limiting of the present application. In the drawings:

[0017] The tail lifting overbridge of the transfer machine comprises an overbridge platform, an upper channel steel, a protective handrail and a wiring steel pipe, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail. Figure 1It is the structural schematic diagram of the utility model;

[0018] The Figure 2 The Figure 1 It is the left view of the utility model;

[0019] The Figure 3 The Figure 2 It is the partial enlarged view of the utility model;

[0020] In the figure: 1, the transfer machine chute, 2, the lifting oil cylinder, 3, the overpass assembly, 4, the transfer machine coal baffle, 5, the pin shaft, 6, the lower channel steel, 7, the plugboard, 8, D type pin, 3-1, the upper channel steel, 3-2, the overpass platform, 3-3, the protective handrail, 3-4, the steel pipe of wiring. Specific implementation

[0021] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0022] Example 1:

[0023] A transfer machine tail lifting overpass, its composition includes, the transfer machine chute 1, the top of the transfer machine chute is installed with the transfer machine tail lifting overpass, the transfer machine tail lifting overpass includes the lifting oil cylinder 2 and the overpass assembly 3 and the transfer machine coal baffle 4, the bottom of the lifting oil cylinder is connected with the lower channel steel 6 through the pin shaft 5, the top of the telescopic rod of the lifting oil cylinder is connected with the upper channel steel 3-1 below the overpass assembly through the pin shaft, the oil cylinder body of the lifting oil cylinder is inserted on the plugboard 7 on the transfer machine coal baffle and plays the role of positioning to the lifting oil cylinder;

[0024] The bottom of the transfer machine coal baffle and the bottom of the lower channel steel are fixedly connected with the top end surface of the transfer machine chute, and the side surface of the transfer machine coal baffle is fixedly connected with the side surface of the lower channel steel.

[0025] The whole transfer machine tail lifting overpass adopts the anticorrosive paint of red and white alternation.

[0026] The lifting oil cylinder uses four oil cylinders with 100mm cylinder diameter and 800mm stroke, and the lifting oil cylinder can be replaced by a bracket support jack, and a terminal support is directly used to provide a power source.

[0027] The thickness of the transfer machine coal baffle is 30mm thick steel plate, and the specification is 950*1000mm.

[0028] The pin shaft is 8 Pin shafts, and each pin shaft is provided with a D type pin.

[0029] Example 2:

[0030] The tail lifting overbridge of the transfer machine according to the embodiment 1, the overbridge assembly comprises an overbridge platform 3-2, an upper channel steel 3-1, a protective handrail 3-3 and a wiring steel pipe 3-4, the bottom of the overbridge platform is fixedly connected with the lower channel steel, the top of the overbridge platform is fixedly connected with the protective handrail, and the wiring steel pipe is fixedly installed at the corner of the overbridge platform and the protective handrail.

[0031] The overbridge platform is made of a 6mm thick steel plate, and the upper channel steel is fixedly welded by a 14# channel steel.

[0032] The overbridge platform and the upper channel steel are fixedly connected as an integral structure by welding at the plane of the overbridge platform and the upper channel steel.

[0033] The wiring steel pipe is arranged above the overbridge platform, and wires and the like pass through the wiring steel pipe.

[0034] Embodiment 3:

[0035] The tail lifting overbridge of the transfer machine according to the embodiment 1 or 2, the protective handrail is composed of a horizontal beam steel pipe and a group of vertical beam steel pipes, the top of the vertical beam steel pipe is connected perpendicularly with the horizontal beam steel pipe, and the bottom of the vertical beam steel pipe is connected perpendicularly with the overbridge platform.

[0036] The horizontal beam steel pipe and the vertical beam steel pipe are fixedly connected as an integral structure by welding.

[0037] The protective handrail welded above the overbridge platform plays a protective role on the personnel passing through the overbridge platform.

[0038] Embodiment 4:

[0039] The tail lifting overbridge of the transfer machine according to the embodiment 1 or 2 or 3, the plugboard is a U-shaped steel plate, and a plug hole is formed in the plugboard, the lifting oil cylinder passes through the plug hole of the plugboard, and the plugboard is fixedly connected with the outer side of the transfer machine coal baffle.

[0040] The end of the plugboard is fixedly connected with the transfer machine coal baffle as an integral structure by welding, the hole diameter of the plug hole in the plugboard is greater than the diameter of the cylinder body of the lifting oil cylinder, so that the lifting oil cylinder can pass through the plug hole in the plugboard.

[0041] Embodiment 5:

[0042] The tail lifting overbridge of the transfer machine according to the embodiment 1 or 2 or 3 or 4, a D-shaped pin 8 is inserted into the pin shaft.

[0043] Working principle:

[0044] In the fully mechanized caving face, a lifting bridge is installed at the tail of the transfer machine, and four lifting oil cylinders are arranged below the bridge assembly. The four lifting oil cylinders are connected in parallel and connected to a spare valve of the end support. The lifting oil cylinder rods are simultaneously raised or lowered, thereby driving the bridge assembly to rise or fall. When the staff passes through, the height of the bridge assembly is lowered, allowing the staff on the bridge platform to pass smoothly. During production, the bridge assembly is raised by the lifting oil cylinders, thereby providing sufficient space below the bridge platform to allow large blocks to pass through from below the bridge.

Claims

1. A tail lifting bridge for a transfer conveyor, comprising a transfer conveyor chute, characterized in that, The top of the transfer machine chute is equipped with a tail lifting bridge, which includes a lifting cylinder, a bridge assembly, and a coal retaining plate. The bottom of the lifting cylinder is connected to the lower channel steel via a pin, and the top of the extension rod of the lifting cylinder is connected to the upper channel steel below the bridge assembly via a pin. The cylinder body of the lifting cylinder is inserted into the insert plate on the coal retaining plate of the transfer machine to position the lifting cylinder. The bottom of the coal retaining plate and the bottom of the lower channel steel of the transfer machine are fixedly connected to the top end face of the transfer machine chute, and the side of the coal retaining plate of the transfer machine is fixedly connected to the side of the lower channel steel.

2. The tail lifting bridge of the transfer machine according to claim 1, characterized in that, The bridge assembly includes a bridge platform, an upper channel steel, a protective handrail, and a cable conduit. The bottom of the bridge platform is fixedly connected to the lower channel steel, and the top of the bridge platform is fixedly connected to the protective handrail. A cable conduit is fixedly installed at the corner of the bridge platform and the protective handrail.

3. The tail lifting bridge of the transfer machine according to claim 2, characterized in that, The protective handrail consists of a horizontal steel pipe and a set of longitudinal steel pipes. The top of the longitudinal steel pipe is perpendicularly connected to the horizontal steel pipe, and the bottom of the longitudinal steel pipe is perpendicularly connected to the bridge abutment.

4. The tail lifting bridge of the transfer machine according to claim 1, characterized in that, The insert plate is a U-shaped steel plate with insertion holes. The lifting cylinder passes through the insertion holes of the insert plate, and the insert plate is fixedly connected to the outer side of the coal retaining plate of the transfer machine.

5. The tail lifting bridge of the transfer machine according to claim 1, characterized in that, A D-type pin is inserted into the pin shaft.

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