CN215169694U - Boarding ladder of large excavator - Google Patents

Abstract

The utility model belongs to the technical field of boarding ladders, and particularly discloses a boarding ladder of a large excavator, which comprises a ladder body, a magnet, a motor switch and a landing assembly; one end of the ladder body is mounted on the front side wall of the excavator through a damping rotating shaft, the magnet and the motor switch are both arranged on the front side wall of the excavator, and the magnet is used for fixing the ladder body; the descending assembly is installed at the bottom of one end, far away from the damping rotating shaft, of the ladder body through the installation block and comprises a sleeve, a first retaining ring and a second retaining ring are symmetrically installed on the inner walls of the two sides of the sleeve, a storage shaft is fixedly connected between the first retaining ring and the second retaining ring, and a pull rope is wound on the storage shaft; the first check ring is provided with lugs in an annular array, and a driving piece for driving the first check ring to rotate is arranged above the receiving shaft in the sleeve; the utility model discloses simple structure is difficult for causing the unable problem that normally receive and releases of ladder, and has reduced the potential safety hazard.

Description

Boarding ladder of large excavator

Technical Field

The utility model relates to a ladder technical field of boarding specifically is a large-scale excavator ladder of boarding.

Background

A large-scale open pit coal mine in China has a plurality of large-scale devices, most representative large-scale excavators are large-scale excavators, and the large-scale excavators can be lifted to a cab only by means of a boarding ladder.

The existing ladder is controlled to ascend and descend by two air cylinders, and air in the air cylinders is sourced from an air compressor inside the excavator equipment. The cylinder rod extends out of the ladder and rotates clockwise by taking the rotating shaft as a center, and the ladder rises. When the cylinder rod retracts, the ladder rotates anticlockwise, and the ladder falls to the ground; in the mode, the air cylinder and the connected air pipe are wearing parts, so that the failure rate of the excavator is increased; in addition, water brought by compressed air in the ladder cylinder is easy to freeze in winter, and the ladder cannot be normally folded and unfolded, so that the boarding ladder of the large excavator is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale excavator ladder of boarding to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a boarding ladder of a large excavator comprises a ladder body, a magnet, a motor switch and a landing assembly; one end of the ladder body is mounted on the front side wall of the excavator through a damping rotating shaft, the magnet and the motor switch are both arranged on the front side wall of the excavator, and the magnet is used for fixing the ladder body; the descending assembly is installed at the bottom of one end, far away from the damping rotating shaft, of the ladder body through the installation block and comprises a sleeve, a first retaining ring and a second retaining ring are symmetrically installed on the inner walls of the two sides of the sleeve, a storage shaft is fixedly connected between the first retaining ring and the second retaining ring, and a pull rope is wound on the storage shaft; be annular array on the first retaining ring and be provided with the lug, be equipped with in the sleeve in the top of accomodating the axle and be used for driving first retaining ring pivoted driving piece.

Preferably, the bottom of one end of the ladder body, which is far away from the descending assembly, is provided with a counterweight balance block.

Preferably, the bottom end of the pull rope is fixedly connected with a balancing weight.

Preferably, the first retaining ring and the second retaining ring are rotatably connected with the inner wall of the sleeve through bearings.

Preferably, the driving member comprises a motor and a gear; the motor is installed on the inside wall of sleeve, and the gear is located the top of first retaining ring and is connected with the lug meshing, and the gear passes through the output fixed connection of pivot and motor.

Preferably, the motor switch is electrically connected with the motor.

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

1. the utility model discloses be equipped with the descending subassembly, when the driver need board the excavator and operate, start the motor through the motor switch, the output of motor drives the gear through the pivot and rotates, the gear drives first retaining ring through the lug that meshes rather than and rotates, first retaining ring drives the storage shaft and rotates, when the storage shaft rotates, release the stay cord, the stay cord is prolonged to suitable position downwards under the effect of balancing weight, afterwards, the driver lifts the hand and draws the rope, under the pulling force effect, the ladder body rotates along the damping pivot, wait that one end of ladder body can wait the machine after falling; after boarding, the moment generated by the counterweight balance block is slightly larger than the moment generated by the dead weight of the ladder body, namely, the ladder body can be retracted under the action of gravity, the operation is simple, and the problem that the ladder cannot be normally folded and unfolded is not easy to cause; in addition, when the ladder body withdraws, make the stay cord withdraw through the motor and twine on accomodating epaxially, avoid the stay cord to be drawn into in the excavator, be difficult for causing the potential safety hazard.

2. The utility model discloses in increased magnet, when the ladder body was withdrawed, magnet was inhaled on the ladder body, had increased the stability of ladder body, avoided the excavator ladder body swing when the operation.

3. The utility model discloses a ladder body passes through the damping pivot to be installed on the automobile body, and ladder body whereabouts is comparatively gentle when excavator upper portion navigating mate gets off the aircraft, has increased navigating mate factor of safety and travelling comfort.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the landing assembly of the present invention.

In the figure: 1. a ladder body; 2. a magnet; 3. mounting blocks; 4. a motor switch; 5. a sleeve; 6. a first retainer ring; 7. a second retainer ring; 8. a storage shaft; 9. a bump; 10. pulling a rope; 11. a counterweight balance block; 12. a balancing weight; 13. a motor; 14. a gear; 15. a rotating shaft; 16. damping pivot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a boarding ladder of a large excavator comprises a ladder body 1, a magnet 2, a motor switch 4 and a landing assembly; one end of the ladder body 1 is mounted on the front side wall of the excavator through a damping rotating shaft 16, the magnet 2 and the motor switch 4 are both arranged on the front side wall of the excavator, and the magnet 2 is used for fixing the ladder body 1; the descending assembly is arranged at the bottom of one end, far away from the damping rotating shaft 16, of the ladder body 1 through the mounting block 3 and comprises a sleeve 5, a first retaining ring 6 and a second retaining ring 7 are symmetrically arranged on the inner walls of two sides of the sleeve 5, a storage shaft 8 is fixedly connected between the first retaining ring 6 and the second retaining ring 7, and a pull rope 10 is wound on the storage shaft 8; the first check ring 6 is provided with lugs 9 in an annular array, and a driving piece for driving the first check ring 6 to rotate is arranged above the accommodating shaft 8 in the sleeve 5.

Furthermore, a counterweight balance block 11 is arranged at the bottom of one end of the ladder body 1 far away from the descending assembly.

Furthermore, the bottom end of the pull rope 10 is fixedly connected with a counterweight 12, so that the pull rope 10 can extend downwards conveniently.

Furthermore, the first retainer ring 6 and the second retainer ring 7 are rotatably connected with the inner wall of the sleeve 5 through bearings.

Further, the driving member comprises a motor 13 and a gear 14; the motor 13 is arranged on the inner side wall of the sleeve 5, the gear 14 is positioned above the first retainer ring 6 and is meshed with the lug 9, and the gear 14 is fixedly connected with the output end of the motor 13 through a rotating shaft 15.

Further, the motor switch 4 is electrically connected to the motor 13.

The working principle is as follows: when a driver needs to get on the excavator to operate, the motor 13 is started through the motor switch 4, the output end of the motor 13 drives the gear 14 to rotate through the rotating shaft 15, the gear 14 drives the first check ring 6 to rotate through the lug 9 meshed with the gear, the first check ring 6 drives the storage shaft 8 to rotate, the storage shaft 8 rotates and releases the pull rope 10, the pull rope 10 extends downwards to a proper position under the action of the counterweight block, then the driver lifts the pull rope 10, the ladder body 1 rotates along the damping rotating shaft 16 under the action of the pulling force, and the excavator can be waited after one end of the ladder body 1 falls; after boarding, the moment generated by the counterweight balance block 11 is slightly larger than the moment generated by the dead weight of the ladder body 1, namely, the ladder body 1 can be retracted under the action of gravity, the operation is simple, and the problem that the ladder body 1 cannot be normally folded and unfolded is not easy to cause; when the ladder body 1 is retracted, the magnet 2 is absorbed on the ladder body 1, so that the stability of the ladder body 1 is improved, the ladder body 1 is prevented from swinging during operation of the excavator, and when the ladder body 1 is retracted, the pull rope 10 is retracted and wound on the storage shaft 8 through the motor 13, so that the pull rope is prevented from being drawn into the excavator, and potential safety hazards are not easily caused; ladder body 1 installs on the automobile body through damping pivot 16, and ladder body 1 whereabouts is comparatively gentle when excavator upper portion navigating mate gets off the aircraft, has increased navigating mate factor of safety and travelling comfort.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A boarding ladder of a large excavator is characterized by comprising a ladder body (1), a magnet (2), a motor switch (4) and a landing assembly; one end of the ladder body (1) is mounted on the front side wall of the excavator through a damping rotating shaft (16), the magnet (2) and the motor switch (4) are both arranged on the front side wall of the excavator, and the magnet (2) is used for fixing the ladder body (1); the descending assembly is arranged at the bottom of one end, far away from the damping rotating shaft (16), of the ladder body (1) through the mounting block (3), the descending assembly comprises a sleeve (5), a first check ring (6) and a second check ring (7) are symmetrically arranged on the inner walls of the two sides of the sleeve (5), a storage shaft (8) is fixedly connected between the first check ring (6) and the second check ring (7), and a pull rope (10) is wound on the storage shaft (8); the first check ring (6) is provided with lugs (9) in an annular array, and a driving piece for driving the first check ring (6) to rotate is arranged above the storage shaft (8) in the sleeve (5).

2. A large excavator boarding ladder as claimed in claim 1, wherein: the bottom of one end of the ladder body (1) far away from the descending assembly is provided with a counterweight balance block (11).

3. A large excavator boarding ladder as claimed in claim 1, wherein: the bottom end of the pull rope (10) is fixedly connected with a balancing weight (12).

4. A large excavator boarding ladder as claimed in claim 1, wherein: and the first retaining ring (6) and the second retaining ring (7) are rotatably connected with the inner wall of the sleeve (5) through bearings.

5. A large excavator boarding ladder as claimed in claim 1, wherein: the driving piece comprises a motor (13) and a gear (14); the motor (13) is installed on the inner side wall of the sleeve (5), the gear (14) is located above the first retainer ring (6) and is meshed with the bump (9), and the gear (14) is fixedly connected with the output end of the motor (13) through the rotating shaft (15).

6. A large excavator boarding ladder as claimed in claim 1, wherein: the motor switch (4) is electrically connected with the motor (13).

Images