CN216783654U - Articulated formula engineering machine tool and from removing cat ladder system thereof - Google Patents

Abstract

The utility model discloses an articulated engineering machine and a self-moving ladder climbing system thereof, which comprise a front frame and a rear frame which are connected through an articulated mechanism, wherein the rear frame is provided with a cab positioned above the articulated mechanism, and the self-moving ladder climbing system also comprises a ladder climbing mechanism, a sensor mechanism and a controller; the ladder stand mechanism comprises a ladder stand fixing part and a ladder stand moving part, wherein the ladder stand fixing part comprises a supporting frame arranged on the rear frame and a linear motor arranged on the supporting frame, and the linear motor is connected with the ladder stand moving part and can drive the ladder stand moving part to move horizontally; the sensor mechanism is used for monitoring whether a cab door is opened or monitoring the rotation angle of the hinge mechanism; the sensor mechanism and the linear motor are respectively connected with the controller. The utility model has simple structure, reasonably utilizes the design space, improves the comfort level of a driver for climbing up and down the ladder, increases the maximum steering angle of the engineering machinery, enhances the steering safety of the engineering machinery and has strong practicability.

Description

Articulated engineering machinery and self-moving ladder stand system thereof

Technical Field

The utility model belongs to the technical field of engineering machinery, and particularly relates to hinged engineering machinery and a self-moving ladder climbing system thereof.

Background

The cab of the articulated construction machine is usually arranged in the middle of the articulated frame, i.e. above the articulated mechanism, and needs to be accessible by means of a ladder. Traditional fixed cat ladder is in the middle of the fuselage, hardly accomplishes the travelling comfort when considering simultaneously when the cat ladder gets on or off the bus and the biggest angle that turns to that does not hinder the complete machine when selecting the fixed position of cat ladder. If the ladder stand is arranged at the most convenient position for getting on and off the vehicle, namely the position closest to the center of the hinge mechanism, the maximum steerable angle of the whole machine can be greatly reduced, and the maximum turning diameter of the whole machine is increased, so that the trafficability of the whole machine is greatly reduced; if the ladder stand is arranged at the farthest position away from the center of the hinge mechanism, the ladder stand deviates a lot from the passage of the cab, and the operator is very inconvenient to get on or off the vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides the hinged engineering machinery and the self-moving ladder stand system thereof, which have the advantages of simple structure, reasonable application of design space, improvement of the comfort level of a driver for climbing up and down the ladder, increase of the maximum steering angle of the engineering machinery, enhancement of the steering safety of the engineering machinery and strong practicability.

The utility model provides the following technical scheme:

the self-moving ladder climbing system comprises a front frame and a rear frame which are connected through a hinge mechanism, wherein a cab positioned above the hinge mechanism is arranged on the rear frame; the ladder stand mechanism comprises a ladder stand fixing part and a ladder stand moving part, wherein the ladder stand fixing part comprises a supporting frame arranged on the rear frame and a linear motor arranged on the supporting frame, and the linear motor is connected with the ladder stand moving part and can drive the ladder stand moving part to move horizontally; the sensor mechanism is used for monitoring whether a cab door is opened or monitoring the rotation angle of the hinge mechanism; the sensor mechanism and the linear motor are respectively connected with the controller.

Further, the sensor mechanism comprises a position sensor connected with the controller, the position sensor is installed on the cab door, and the position sensor is used for monitoring whether the cab door is opened or not.

Further, the sensor mechanism comprises an angle sensor connected with the controller, the angle sensor is installed on the hinge mechanism, and the angle sensor is used for monitoring the rotation angle of the hinge mechanism.

Further, cat ladder removal portion is including removing the frame and with removing a plurality of cat ladder sections that the frame links to each other, it is connected with the pull rod to remove frame upper portion, the pull rod links to each other with linear electric motor.

Further, the ladder stand moving part further comprises a plurality of idler wheels, the idler wheels are uniformly installed on two sides of the moving frame, and sliding grooves which are used for accommodating the idler wheels to move and are horizontally arranged are formed in the supporting frame.

Furthermore, a fixing plate is arranged on the edge of the supporting frame, and a fixing hole for installing a bolt is formed in the fixing plate.

In a second aspect, an articulated construction machine is provided, comprising the self-moving ladder climbing system of the first aspect, wherein the ladder climbing mechanism is arranged on the left side or the right side of the rear frame.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the sensor mechanism is used for monitoring whether a cab door is opened or monitoring the rotation angle of the hinge mechanism, if the opening of the cab door or the steering angle of the hinge mechanism is smaller than a preset angle, a signal is sent to the controller, the controller sends a signal to control the linear motor to work, the linear motor drives the ladder stand moving part to horizontally move to the optimal position of the upper vehicle and the lower vehicle, and a driver can conveniently get on or off the vehicle; if the closing of a cab door or the steering angle of the hinge mechanism reaches a preset angle is monitored, the signal is sent to a controller, the controller sends a signal to control the linear motor to work, and a crawling ladder moving part is driven to move to the position farthest away from the hinge mechanism, so that a front frame is prevented from colliding with the crawling ladder mechanism when the engineering machinery steers;

(2) the utility model has simple structure, reasonably utilizes the design space, improves the comfort level of a driver for climbing up and down the ladder, increases the maximum steering angle of the engineering machinery, enhances the steering safety of the engineering machinery and has strong practicability.

Drawings

FIG. 1 is a schematic structural view of the present invention;

figure 2 is a side view of the ladder climbing mechanism;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

figure 4 is a front view of the ladder climbing mechanism;

figure 5 is a schematic view of the ladder moving portion of the present invention away from the hinge mechanism;

figure 6 is a schematic view of the ladder moving portion of the present invention in close proximity to the hinge mechanism;

labeled as: 1. a front frame; 2. an angle sensor; 3. a hinge mechanism; 4. a rear frame; 5. a ladder climbing mechanism; 6. a linear motor; 7. a cab door; 8. a cab; 9. a ladder-climbing moving part; 9-1, a movable frame; 9-2, rollers; 9-3, a pull rod; 9-4, stair climbing sections; 10. a ladder stand fixing part; 10-1, a support frame; 10-2, fixing plates; 10-3, fixing holes; 10-4, a chute; 11. a position sensor.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

It should be noted that in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1, the present embodiment provides a self-moving ladder-climbing system for articulated construction machinery, which includes a front frame 1 and a rear frame 4 connected by an articulation mechanism 3, and a cab 8 located above the articulation mechanism 3 is provided on the rear frame 4. The self-moving ladder climbing system of this embodiment further comprises a ladder climbing mechanism 5, a sensor mechanism and a controller, wherein the ladder climbing mechanism 5 comprises a ladder climbing fixing part 10 and a ladder climbing moving part 9.

As shown in fig. 1-4, the ladder fixing part 10 comprises a support frame 10-1 arranged on the rear frame 4 and a linear motor 6 arranged on the support frame 10-1, the linear motor 6 is electrically connected with the controller, a fixing plate 10-2 is arranged at the edge of the support frame 10-1, and a fixing hole 10-3 for installing a bolt is formed in the fixing plate 10-2, so that the support frame 10-1 can be conveniently installed and fixed.

As shown in fig. 1 to 4, the linear motor 6 is connected to the ladder moving section 9 and can drive the ladder moving section 9 to move horizontally. Specifically, the crawling ladder moving part 9 comprises a moving frame 9-1 and a plurality of crawling ladder sections 9-4 connected with the moving frame 9-1, a pull rod 9-3 is connected to the upper portion of the moving frame 9-1, the pull rod 9-3 is connected with a linear motor 6, and the linear motor 6 can drive the pull rod 9-3 to move when moving, so that the moving frame 9-1 and the crawling ladder sections 9-4 are driven to move together. The ladder stand moving part 9 further comprises a plurality of rollers 9-2, the rollers 9-2 are uniformly arranged on two sides of the moving frame 9-1, and a sliding groove 10-4 which is used for accommodating the rollers 9-2 to move and is horizontally arranged is arranged in the supporting frame 10-1.

As shown in fig. 1, the sensor mechanism includes a position sensor 11 connected to the controller, the position sensor 11 being mounted on the cab door 7, the position sensor 11 being used to monitor whether the cab door 7 is opened.

The working principle of the embodiment is as follows: in the initial state, the ladder moving portion 9 is located at a position satisfying the maximum steering angle position, i.e., the farthest position from the hinge mechanism 3; when the position sensor 11 monitors that the cab door 7 is opened, the signal is sent to the controller, the controller sends a signal to control the linear motor 6 to work, and the linear motor 6 drives the ladder stand moving part 9 to horizontally move to the optimal position (the position in fig. 6) of getting on or off the bus, so that a driver can get on or off the bus conveniently; when the position sensor 11 monitors that the cab door 7 is closed, the signal is sent to the controller, the controller sends a signal to control the linear motor 6 to work, the ladder stand moving part 9 is driven to move to a position (position in fig. 5) farthest away from the hinge mechanism 3, the collision between the front frame and the ladder stand mechanism 5 when the engineering machinery turns is avoided, and the whole machine has the maximum turning angle.

Example 2

This embodiment provides a self-moving ladder system of an articulated construction machine, which has the same structure as that of embodiment 1 except for the sensor mechanism.

As shown in fig. 1, the sensor mechanism of the present embodiment includes an angle sensor 2 connected to a controller, the angle sensor 2 is mounted on an articulated mechanism 3, and the angle sensor 2 is used for monitoring a rotation angle of the articulated mechanism 3.

The working principle of the embodiment is as follows: in an initial state, the ladder stand moving part 9 is positioned at the optimal position for getting on and off the vehicle, namely the position closest to the hinge mechanism 3; when the angle sensor 2 monitors that the steering angle of the hinging mechanism 3 reaches a preset angle, the signal is sent to the controller, the controller sends a signal to control the linear motor 6 to work, the crawling ladder moving part 9 is driven to move to a position (the position in fig. 5) farthest away from the hinging mechanism 3, collision between the front frame 1 and the crawling ladder mechanism 5 during steering of the engineering machinery is avoided, and the whole machine has the maximum steering angle; when the angle sensor 2 monitors that the steering angle of the hinge mechanism 3 is smaller than a preset angle, the signal is sent to the controller, the controller sends a signal to control the linear motor 6 to work, the crawling ladder moving part 9 is driven to horizontally move to the optimal position (the position in fig. 6) of the upper vehicle and the lower vehicle, and a driver can conveniently get on or off the vehicle.

Example 3

This embodiment provides an articulated construction machine comprising the self-moving ladder climbing system of embodiment 1 or 2, the ladder climbing mechanism 5 being mounted on the left or right side of the rear frame 4, the ladder climbing mechanism 5 being shown in fig. 5 and 6 as being mounted on the left side of the rear frame 4.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A self-moving ladder climbing system of articulated engineering machinery comprises a front frame and a rear frame which are connected through an articulated mechanism, wherein a cab positioned above the articulated mechanism is arranged on the rear frame; the crawling ladder mechanism comprises a crawling ladder fixing part and a crawling ladder moving part, the crawling ladder fixing part comprises a supporting frame arranged on the rear frame and a linear motor arranged on the supporting frame, and the linear motor is connected with the crawling ladder moving part and can drive the crawling ladder moving part to move horizontally; the sensor mechanism is used for monitoring whether a cab door is opened or monitoring the rotation angle of the hinge mechanism; the sensor mechanism and the linear motor are respectively connected with the controller.

2. The self-moving ladder system of articulated work machine according to claim 1, wherein the sensor means comprises a position sensor connected to the controller, the position sensor being mounted on the cab door, the position sensor being adapted to monitor whether the cab door is open.

3. The articulating work machine self-moving ladder system of claim 1 wherein the sensor mechanism comprises an angle sensor coupled to the controller, the angle sensor mounted to the articulating mechanism, the angle sensor configured to monitor the angle of rotation of the articulating mechanism.

4. The self-moving ladder climbing system of articulated construction machinery according to claim 1, wherein the ladder moving part comprises a moving frame and a plurality of ladder sections connected to the moving frame, and a pull rod is connected to an upper part of the moving frame and connected to a linear motor.

5. The self-moving ladder stand system of articulated construction machinery of claim 4, wherein the ladder stand moving part further comprises a plurality of rollers uniformly installed at both sides of the moving frame, and a horizontally disposed chute for accommodating the movement of the rollers is provided in the support frame.

6. The self-moving ladder system of articulated working machinery according to claim 1, wherein the support frame is provided at its edge with a fixing plate provided with a fixing hole for mounting a bolt.

7. An articulated construction machine comprising a self-moving ladder climbing system as claimed in any one of claims 1 to 6, the ladder climbing mechanism being mounted to the left or right side of a rear frame.

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