Novel rotary escalator for crawler-type milling machine

Abstract

The rotary escalator comprises a fixed seat and an escalator body, the fixed seat is used for being installed on a machine frame of the milling machine, a positioning gap is formed in the position, close to the middle, of the top end of the fixed seat, a limiting piece is hinged to the top of the left side of the fixed seat, and a right handrail is installed on the right side of the fixed seat; the right handrail extends in the vertical direction, the escalator is located on the side, away from the rack, of the fixing base, a positioning piece matched with the positioning gap is arranged on the top of the escalator, a left handrail is installed on the left side of the escalator, and the left handrail is close to the upper portion of the escalator and extends in the vertical direction. And a limiting clamping groove is formed in the right side of the escalator, the limiting clamping groove is in clamping fit with the limiting piece, and the top of the right side of the escalator is hinged to the fixing base through a hinge shaft. The novel rotary escalator for the crawler-type milling machine is convenient to use, time-saving, labor-saving and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of milling machine parts, in particular to a new type of rotary escalator for a crawler type milling machine. Background Art

[0002] A milling machine is a mechanical equipment used for milling road surfaces. It can mill the concrete or asphalt pavement on the road surface into a specified shape and depth to meet the requirements of road repaving.

[0003] Most crawler milling machines are large-scale road milling equipment, with a floor frame greater than 1.9 meters from the ground, and they must use an escalator to climb to the cab. In addition, when large milling machines are performing deep milling operations, the entire body of the machine will descend with the escalator, causing the foot pedal at the bottom of the escalator to contact the ground, so the escalator needs to be rotated or folded upwards to avoid the ground.

[0004] At present, the existing technologies are mostly folding escalators, including hanging ropes, hooks and escalators. The escalator is connected to the pin hole on the milling machine frame through a pin shaft, and can be rotated up and down through the pin shaft. The hanging rope is connected to the hook on the escalator. Under normal conditions, the folding escalator naturally droops, and the driver climbs to the driving shed through the escalator foot pedal to perform driving operations. When the equipment starts to perform milling operations, the fuselage and the folding escalator sink as a whole. Before the foot pedal touches the ground, the driver needs to stop the equipment, manually pull the hanging rope, fold the escalator upward 180°, and then lock the lock between the hanging rope and the hook to fix the escalator. Then the driver continues to return to the driving position to continue operating the equipment for milling operations, which is time-consuming and labor-intensive, affecting work efficiency.

[0005] When the milling operation is completed, if the driver wants to leave the driving position and go to the ground, he needs to manually open the lock between the hanging rope and the hook, and then slowly loosen the hanging rope. The hanging rope will slowly fold down 180° with the escalator, and the driver can step down to the ground with the escalator. There is no fixing measure for the escalator in the naturally drooping state. When the milling operation vibrates greatly, it is easy to cause bumps and collisions, which affects the life of the escalator. Utility Model Content

[0006] The embodiment of the present application provides a new type of rotating escalator for a crawler milling machine, which can be easily rotated 90° and then hung on the frame of the milling machine without hindering the continued operation of the equipment for milling operations, saving time and effort. At the same time, no matter whether the escalator is in a vertical downward state or in a state rotated 90°, it can be fixed, is not prone to bumps and collisions, and has a longer service life.

[0007] An embodiment of the present application provides a novel rotating escalator for a crawler-type milling machine, comprising a fixed seat and an escalator, wherein the fixed seat is used to be installed on the frame of the milling machine, a positioning gap is arranged at the top of the fixed seat near the middle, a limiting piece is hinged on the top left side of the fixed seat, a right handrail is installed on the right side of the fixed seat, and the right handrail extends in a vertical direction, wherein the escalator is located on a side of the fixed seat away from the frame, a positioning piece matching the positioning gap is arranged on the top of the escalator, a left handrail is installed on the left side of the escalator, the left handrail is close to the upper part of the escalator and extends in a vertical direction, a limiting slot is arranged on the right side of the escalator, the limiting slot and the limiting piece are engaged with each other, and the top right side of the escalator is hinged to the fixed seat through a hinge shaft.

[0008] In a possible implementation, the positioning gap is a positioning hole or a positioning groove, the positioning member is a positioning plate, and the positioning plate is clamped in the positioning gap.

[0009] In a possible implementation, the fixing seat and the right armrest are formed into an integrated structure by welding, the fixing seat includes a top plate and a right side plate, the right side plate extends downward at a certain angle from the right end of the top plate, and the right armrest is connected to the right side plate.

[0010] In a possible implementation, a gas spring is hingedly mounted on the bottom of the right side plate, and an output end of the gas spring is connected to the right side of the escalator and is close to the top of the escalator.

[0011] In a possible implementation, the left handrail, the escalator, and the limit slot are formed into an integrated structure by welding.

[0012] In a possible implementation, the bottom end of the escalator is connected to an extension section, and the extension section and the escalator extend in the same direction.

[0013] In a possible implementation, the escalator and the extended section are provided with multiple layers of footrests evenly spaced along the extension direction, and the surfaces of the footrests are provided with anti-slip structures.

[0014] In a possible implementation, the anti-slip structure is implemented as teeth or protrusions, wherein an anti-slip groove is formed at the top of the protrusion.

[0015] Beneficial effect: Compared with the prior art, the new type of crawler milling machine rotating escalator provided in the present application can be fixed on the frame of the milling machine through the cooperation of the positioning piece and the positioning gap in a vertical state, so that the escalator can be fixed on the frame of the milling machine, which is convenient for the driver to climb into the driving shed. When the escalator needs to be retracted, the auxiliary construction personnel on the ground can rotate the escalator 90° clockwise, and the positioning piece will disengage from the positioning gap. Then the limit slot on the escalator will be stuck on the limit piece of the fixed seat to fix the escalator horizontally on the frame. The operation is very convenient. The operator in the driving shed does not need to leave the driving seat, so the work efficiency can be ensured. When the work is completed, when the driver needs to go down to the ground, the ground auxiliary personnel only need to remove the limit piece, and then rotate the escalator 90° counterclockwise so that the positioning piece on the escalator is stuck in the positioning gap to achieve fixation. Whether the escalator is in a vertical state or in a horizontal state after rotation, it can be fixed, and it is not easy to be bumped and bumped, and the service life of the escalator is longer.

[0016] These and other purposes, features and advantages of the present invention are fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The schematic diagram of the structure of the novel rotary escalator for crawler milling machine of the present application in a vertical state is shown.

[0018] Figure 2 The schematic diagram of the structure of the novel rotary escalator for crawler-type milling machine of the present application in the rotating state is shown.

[0019] Figure 3 A partial structural schematic diagram of a new type of rotating escalator for a crawler milling machine of the present application is shown. DETAILED DESCRIPTION

[0020] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0021] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0022] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0023] refer to Figures 1 to 3 The embodiment of the present application provides a new type of rotating escalator for a crawler milling machine, including a fixed seat 10 and an escalator 20, wherein the fixed seat 10 is used to be installed on the frame of the milling machine. A positioning gap 101 is provided at the top of the fixed seat 10 near the middle, wherein the positioning gap 101 can be a positioning groove or a positioning hole. A limiting member 11 is hinged on the top of the left side of the fixed seat 10, so that the limiting member 11 can rotate in the horizontal direction at the top of the fixed seat 10. A right handrail 12 is installed on the right side of the fixed seat 10, and the right handrail 12 extends in the vertical direction. In addition, the escalator 20 is located on the side of the fixed seat 10 away from the frame, and a positioning member 21 matching the positioning gap 101 is provided on the top of the escalator 20, wherein the positioning member 21 can be a positioning plate that can be snapped into the positioning gap 101. A left handrail 22 is installed on the left side of the escalator 20. The left handrail 22 is close to the upper part of the escalator 20 and extends in the vertical direction. It is used to cooperate with the right handrail 12 for the staff to hold when going up and down the escalator. A limit slot 23 is set on the right side of the escalator 20, wherein the limit slot 23 and the limit member 11 are engaged with each other. At the same time, the top right side of the escalator 20 is hinged to the fixed seat 10 through a hinge shaft 24. In this way, during normal operation, the entire escalator 20 extends vertically downward. At the same time, the positioning member 21 at the top of the escalator 20 is engaged in the positioning gap 101. The top right side of the escalator 20 and the fixed seat 10 remain hinged, which can effectively fix the escalator 20 and facilitate the driver to climb into the driving shed. When the milling machine is sinking, the auxiliary staff on the ground can move the escalator 20 along the The hour hand rotates 90°, during which the positioning member 21 disengages from the positioning gap 101. After the escalator 20 rotates and passes 90°, the limiting member 11 is rotated to the direction facing the escalator 20, and then the escalator 20 is lowered. The limiting slot 23 on the right side of the escalator 20 is engaged with the limiting member 11, so that the escalator 20 is fixed in the horizontal direction. The driver does not need to leave the driving seat, which saves time and effort and ensures work efficiency. The key is that no matter whether the escalator 20 is in a vertical state or a horizontal state, it can be fixed, so as to prevent the escalator 20 from bumping and bumping, thereby ensuring the service life of the escalator 20.

[0024] In a possible implementation, the fixing seat 10 and the right armrest 12 are formed into an integrated structure by welding, and the structural connection strength is high and more stable. The fixing seat 10 includes a top plate 111 and a right side plate 112, wherein the right side plate 112 extends downward from the right side end of the top plate 111 at a certain angle, wherein the angle may be 90° or close to 90°, and the right armrest 12 is connected to the right side plate 112, thereby increasing the connection area between the right armrest 12 and the fixing seat 10, ensuring the connection stability of the right armrest 12, and providing convenience for the driver to hold on.

[0025] Further preferably, a gas spring 13 is hingedly installed at the bottom of the right side plate 112, and the output end of the gas spring 13 is connected to the right side of the escalator 20 and close to the top of the escalator 20, so that the gas spring 13 can provide additional assistance to the ground auxiliary staff, so that the ground auxiliary staff can easily lift the escalator 20 with only one hand, and the nominal pressure of the gas spring 13 can be 800N.

[0026] In one embodiment, the left handrail 22, the escalator 20 and the limit slot 23 are formed into an integrated structure by welding, which is easy to manufacture and the structural connection between the various components is more stable.

[0027] In one embodiment, the bottom end of the escalator 20 is connected to an extension section 25, wherein the extension section 25 and the escalator 20 extend in the same direction, thereby increasing the length of the escalator 20 to a certain extent and making it more convenient to use.

[0028] Further preferably, the escalator 20 and the extension section 25 are evenly spaced with multiple layers of pedals 26 along the extension direction, and the surface of the pedals 26 is provided with an anti-slip structure 27 to play an anti-slip role and facilitate the staff to step on it.

[0029] In one embodiment, the anti-slip structure 27 is implemented as teeth or protrusions, wherein an anti-slip groove is formed at the top of the protrusion.

[0030] It should be noted that the terms "first, second" in the present application are only used for descriptive purposes and do not indicate any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0031] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A new type of rotary escalator for crawler milling machine, characterized in that: It includes a fixed seat and an escalator, wherein the fixed seat is used to be installed on the frame of the milling machine, the top of the fixed seat is provided with a positioning gap near the middle, the left top of the fixed seat is hinged with a limiting piece, a right handrail is installed on the right side of the fixed seat, and the right handrail extends in the vertical direction, wherein the escalator is located on the side of the fixed seat away from the frame, the top of the escalator is provided with a positioning piece matching the positioning gap, a left handrail is installed on the left side of the escalator, the left handrail is close to the upper part of the escalator and extends in the vertical direction, a limiting slot is provided on the right side of the escalator, the limiting slot and the limiting piece are snap-fitted, and the right top of the escalator is hinged to the fixed seat through a hinge shaft.

2. The novel rotary escalator for crawler milling machine as claimed in claim 1 is characterized in that: The positioning gap is a positioning hole or a positioning groove, the positioning member is a positioning plate, and the positioning plate is clamped in the positioning gap.

3. The novel rotary escalator for crawler milling machine as claimed in claim 1 is characterized in that: The fixing seat and the right armrest are formed into an integrated structure by welding. The fixing seat includes a top plate and a right side plate. The right side plate extends downward at a certain angle from the right end of the top plate. The right armrest is connected to the right side plate.

4. The novel rotary escalator for crawler-type milling machine as claimed in claim 3 is characterized in that: A gas spring is hingedly mounted on the bottom of the right side plate, and an output end of the gas spring is connected to the right side of the escalator and is close to the top of the escalator.

5. The novel rotary escalator for crawler milling machine as claimed in claim 1 is characterized in that: The left handrail, the escalator and the limit slot are formed into an integrated structure by welding.

6. The novel rotary escalator for crawler-type milling machine as claimed in claim 1, characterized in that: The bottom end of the escalator is connected with an extension section, and the extension section and the escalator extend in the same direction.

7. The novel rotary escalator for crawler-type milling machine as claimed in claim 6 is characterized in that: The escalator and the extended section are evenly spaced with multiple layers of pedals along the extension direction, and the surfaces of the pedals are provided with anti-slip structures.

8. The novel rotary escalator for crawler-type milling machine as claimed in claim 7 is characterized in that: The anti-slip structure is implemented as teeth or protrusions, wherein the top of the protrusion is provided with an anti-slip groove.

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