CN216341258U

CN216341258U - Workstation for mounting movable arm pin shaft

Info

Publication number: CN216341258U
Application number: CN202121579742.6U
Authority: CN
Inventors: 奉华; 周学全; 王张权; 毛青; 涂海; 吴强
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-04-19
Anticipated expiration: 2031-07-12

Abstract

The utility model relates to the field of excavator assembly equipment, and discloses a workstation for mounting a movable arm pin shaft, which comprises: the pin shaft hoisting equipment is arranged to hoist the movable arm pin shaft to be installed to an assembling position; and the pin pressing machine (10) is arranged to press the movable arm pin shaft lifted to the assembling position by the pin shaft lifting equipment into a pin hole of the movable arm. According to the workstation, the movable arm pin shaft to be installed can be hoisted to the assembling position by the pin shaft hoisting equipment, and the movable arm pin shaft is pressed and mounted in the pin hole of the movable arm by the pin pressing machine, so that the movable arm pin shaft does not need to be manually carried and knocked, the labor intensity during installation is effectively reduced, the safety risk caused by accidental falling of the movable arm pin shaft is avoided, the assembling efficiency of the movable arm pin shaft is improved conveniently through automatic control and the like, and the labor cost is reduced.

Description

Workstation for mounting movable arm pin shaft

Technical Field

The utility model relates to excavator assembly equipment, in particular to a workstation for mounting a movable arm pin shaft.

Background

A boom pin of an excavator is a workpiece for pivotally mounting a boom to a vehicle body, and an excavator working device including the boom is rotatable about the boom pin to perform operations such as excavation, loading and unloading. Generally, in excavator assembly, it is necessary to manually carry a boom pin and perform hole alignment, and then assemble it into a pin shaft hole using a tool such as a hammer.

In the assembling process, manual carrying of the movable arm pin shaft and hole aligning operation and knocking of the movable arm pin shaft by using a hammer at an assembling position are time-consuming and labor-consuming, and potential safety hazards exist; this assembly process mainly relies on the manpower, and assembly efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of time and labor waste and low efficiency in mounting of a movable arm pin shaft in the prior art, and provides a workstation for mounting the movable arm pin shaft.

In order to achieve the above object, an aspect of the present invention provides a workstation for mounting a boom pin, including: the pin shaft hoisting equipment is arranged to hoist the movable arm pin shaft to be installed to an assembling position; and the pin pressing machine is arranged to press the movable arm pin shaft lifted to the assembling position by the pin shaft lifting equipment into a pin hole of the movable arm.

Preferably, the workstation further comprises an employee operation platform, the employee operation platform is provided with an employee operation area and a pin shaft storage area, and the pin shaft hoisting equipment is arranged to be capable of hoisting and placing the movable arm pin shaft arranged in the pin shaft storage area.

Preferably, the pin roll hoisting equipment and the pin press are arranged between the employee operation area and the pin roll storage area, and/or the pin roll hoisting equipment is arranged between the pin press and the pin roll storage area.

Preferably, the pin pressing machine is provided with an installation platform provided with a pin pressing oil cylinder, the height of the table top of the staff working area is not lower than that of the installation platform, and the staff working platform is provided with a guardrail at least surrounding the staff working area.

Preferably, the pin roll handling equipment is a cantilever crane and has: the upright post is fixed on the ground; the swing arm is arranged on the upright post and can rotate around the central axis of the upright post; the movable trolley is arranged on the swing arm and can move towards the direction close to or far away from the upright post along the swing arm; and the hoisting device is connected to the movable trolley and can release or wind the sling to hoist the movable arm pin shaft.

Preferably, the free end of the sling is connected with a magnetic device so as to absorb the movable arm pin shaft in a magnetic mode.

Preferably, the pin pressing machine is provided with a frame fixed on the ground, a mounting platform connected to the frame and a lifting mechanism capable of driving the mounting platform to lift along the frame, the mounting platform is provided with a pin pressing oil cylinder, and the pin pressing direction of the pin pressing oil cylinder faces to the side away from the frame.

Preferably, the mounting platform is provided with a translation guide rail to which the press pin cylinder is mounted so as to be movable on the mounting platform in a horizontal direction perpendicular to the press pin direction, and/or the press pin cylinder has a laser-assisted positioning element facing the press pin direction.

Preferably, the work station has a remote control and/or an operating console for operating the pin handling equipment and/or the pin press.

Preferably, the workstation is arranged adjacent to an excavator assembly line to enable the boom to be assembled to an excavator body through the boom pin.

According to the technical scheme, the workstation can hoist the movable arm pin shaft to be installed to the assembling position by using the pin shaft hoisting equipment, and press-fit the movable arm pin shaft into the pin hole of the movable arm by using the pin pressing machine, so that the movable arm pin shaft is not required to be carried and knocked manually, the labor intensity during installation is effectively reduced, the safety risk caused by accidental dropping of the movable arm pin shaft is avoided, the assembling efficiency of the movable arm pin shaft is improved conveniently through automatic control and the like, and the labor cost is reduced.

Drawings

FIG. 1 is a front view of a workstation for mounting a boom pin according to a preferred embodiment of the present invention;

FIG. 2 is a left side view of the workstation of FIG. 1 for mounting a boom pin;

FIG. 3 is a top view of the workstation for mounting a boom pin of FIG. 1 arranged on one side of an excavator assembly line;

FIG. 4 is a schematic diagram of a boom of the workstation of FIG. 1 configured to mount a boom pin;

FIG. 5 is a schematic illustration of a worker work platform and pin press of the workstation of FIG. 1 for mounting a boom pin shaft;

FIG. 6 is a top view of the employee work platform of FIG. 5;

FIG. 7 is a front view of the pin press of FIG. 5;

fig. 8 is a left side view of the pinning machine of fig. 5.

Description of the reference numerals

10-a pin press; 11-a pin pressing oil cylinder; 12-mounting a platform; 13-a frame; 14-a lifting mechanism; 15-a translation guide rail; 16-laser assisted positioning elements; 17-a translation oil cylinder; 20-employee work platform; 21-employee work area; 22-a pin shaft storage area; 23-a guardrail; 30-cantilever crane; 31-upright post; 32-swing arm; 33-moving the trolley; 34-a hoisting device; 35-magnetic attraction means; 36-a rotating electrical machine; and (40) assembling the excavator.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Referring to fig. 1 to 3, a workstation for installing a boom pin according to a preferred embodiment of the present invention includes a pin handling apparatus such as a boom 30, a pin presser 10, and the like. Wherein the pin hoisting device is arranged to hoist the boom pin to be mounted to an assembly position, for example to a boom assembly station conveyed on an excavator assembly line 40 shown in fig. 3, for assembling the boom to the excavator body through the boom pin. The pin press 10 is arranged to be able to press-fit the boom pin shafts hoisted to the fitting position by the aforementioned pin hoisting apparatus into the pin holes of the boom.

Therefore, the workstation can hoist the movable arm pin shaft to be installed to the assembling position by using the pin shaft hoisting equipment, and press the movable arm pin shaft into the pin hole of the movable arm by using the pin pressing machine 10, so that the movable arm pin shaft does not need to be carried and knocked manually, the labor intensity during installation is effectively reduced, the safety risk caused by accidental falling of the movable arm pin shaft is avoided, the assembling efficiency of the movable arm pin shaft is improved conveniently through automatic control and the like, and the labor cost is reduced. For example, the pin hoisting equipment and the pin pressing machine 10 can be hydraulically or electrically controlled, and the boom pin can be hoisted and assembled through an automatic or semi-automatic operation program in combination with a production and assembly process, so that the labor intensity in mounting the boom pin can be remarkably reduced, and the assembly of the boom pin can be efficiently completed.

With continued reference to fig. 1-3, the workstation of the illustrated preferred embodiment further includes an employee work platform 20. As shown in fig. 5 and 6, the worker working platform 20 has a worker working area 21 and a pin storage area 22, and the pin hoisting device can hoist and place the boom pin placed in the pin storage area 22. By arranging the employee work platform 20, the operating areas of the operator and the relevant equipment can be clearly distinguished, so that accidents such as accidental collisions and the like can be avoided. Importantly, the worker work platform 20 has a certain extending height, which is beneficial to ensuring the visual field of the operator standing in the worker work area 21, and is convenient for safely operating the pin roll lifting equipment and the pin press 10.

Further, the convenience of orderly completing the assembly of the movable arm pin shafts can be improved by reasonably arranging the spatial position relationship between the worker working platform 20 and the pin shaft hoisting equipment and the pin pressing machine 10. In the illustrated preferred embodiment, the employee working area 21 and the pin storage area 22 are separated from each other, and when the boom pin is placed in the pin storage area 22 (for installation) and in a storage state, an operator in the employee working area 21 is prevented from being accidentally rubbed by the boom pin, thereby facilitating safe operation. It will be understood that the fact that the employee work area 21 and the pin storage area 22 are separated from each other here does not mean that the employee work platform 20 is necessarily provided separately, and it may be welded together by, for example, steel structures, and only separates the employee work area 21 from the pin storage area 22 in terms of functional area.

On this basis, the pin roll hoisting equipment and the pin press 10 can be arranged between the staff working area 21 and the pin roll storage area 22, so that an operator can stand in the staff working area 21 to observe or operate the pin roll hoisting equipment to hoist the movable arm pin roll by using a remote controller, an operation platform and the like, and operate the pin press 10 to press the movable arm pin roll into a pin hole of a movable arm, thereby avoiding the situation that the pin roll hoisting equipment and the pin press 10 are too far away from the operator or the lifted and installed movable arm pin roll. In addition, the pin hoisting equipment may be arranged between the pin pressing machine 10 and the pin storage area 22 to be able to hoist the boom pin from the pin storage area 22 on one side thereof and complete installation near the pin pressing machine 10 hoisted to the other side. It should be noted that, in the pin hoisting equipment such as the cantilever crane 30 shown in fig. 3, the arrangement area of the pin hoisting equipment relative to other equipment or areas mainly refers to the connection area of the pin hoisting equipment on the ground, that is, the arrangement area of the pin hoisting equipment corresponds to the area where the upright column 31 of the cantilever crane 30 in fig. 4 is located.

As mentioned above, the employee work platform 20 has an extended height to provide a view of an operator standing in the employee work area 21. For this purpose, as shown in fig. 5, the height of the table of the worker working area 21 is not lower than the height of the table of the mounting platform 12 of the pinning machine 10 on which the pinning cylinder 11 is mounted, so as to ensure that the worker can clearly see at least the position and the working state of the pinning cylinder 11. In addition, on the worker work platform 20, a guard rail 23 may be provided to surround at least the worker work area 21, for preventing an operator from accidentally falling, and ensuring safety.

In the workstation of the present invention, the pin hoisting apparatus for hoisting the boom pin may be provided in various forms, such as a boom crane 30, a combined crane (KBK), a power-assisted manipulator, etc., as shown in the drawings. According to fig. 4, the workstation according to a preferred embodiment of the present invention performs boom pin lifting using the boom crane 30. The cantilever crane 30 has a vertical column 31, a swing arm 32, a traveling carriage 33, a hoisting device 34, etc., wherein the vertical column 31 can be fixed to the ground by, for example, anchor bolts; the swing arm 32 is rotatably mounted on the upright column 31 near the top end and can rotate around the central axis of the upright column 31; the movable trolley 33 is arranged on the swing arm 32 and can move along the swing arm 32 to a direction close to or far away from the upright column 31; the hoist 34 is connected to the traveling trolley 33 and can release or wind a hoist rope such as a wire rope to hoist the boom pin. Thus, by the rotation of the swing arm 32 about the column 31, the movement of the traveling car 33 along the swing arm 32, and the release or winding of the hoist 34, the boom pin suspended by the hoist can be hoisted to a predetermined range of the attachment area of the boom hanger 30, including the mounting position of the boom pin. Compared with other types of pin shaft hoisting equipment, the cantilever crane 30 can avoid overlarge floor area on the basis of higher structural strength, and is favorable for arrangement on a workstation.

In the above-described jib crane 30, the swing arm 32 may be connected to the top end of the column 31 by, for example, a rotary motor 36, and thereby can be driven to rotate around the central axis of the column 31 by the rotary motor 36. In other embodiments, the upright 31 may be provided as a rotatably connected sleeve shaft, and the rotation of the swing arm 32 is achieved by relative rotation between different shaft segments.

Additionally, the sling released by the hoist 34 may be used to hoist the boom pin in a variety of suitable ways, such as by directly tying the free end of the sling to the boom pin, or by providing a pin gripper at the free end of the sling, and the like. For the boom pin, the boom pin is generally cylindrical and usually has a layer of lubricating oil film on the surface before assembly, which is not beneficial to direct connection and hoisting of a sling. For this reason, in a preferred embodiment of the present invention, the pin hoisting device, such as the aforementioned boom crane 30, sucks the boom pin by magnetic attraction. For example, a magnetic attraction device 35 may be connected to the free end of the sling, which is advantageous for stably lifting the boom pin. Wherein, the magnetic attraction device 35 can be set to electromagnetic attraction, so that the operator can easily control the absorption and release of the movable arm pin shaft, thereby facilitating the realization of automatic operation.

Referring to fig. 7 and 8, the pin pressing machine 10 of the present invention may have a frame 13 fixed on the ground, a mounting platform 12 connected to the frame 13, and a lifting mechanism 14 capable of driving the mounting platform 12 to lift along the frame 13, wherein the mounting platform 12 is provided with a pin pressing cylinder 11, and a pin pressing direction of the pin pressing cylinder 11 faces to a side away from the frame 13. That is, in the view shown in fig. 8, the pressure pin cylinder 11 applies pressure to the boom cylinder toward the right side (i.e., the pressure pin direction is rightward), and the frame 13 is located at the left side. With this arrangement, when the pressure pin cylinder 11 applies pressure to the boom cylinder for installation, the fixed acting force of the frame 13 on the ground can offset the pressure, so as to have better stability and reliability. A lifting guide rail for guiding the mounting platform 12 to be lifted and lowered may be provided on the frame 13, whereby the mounting platform 12 can be lifted and lowered to different heights in a vertical direction by the lifting structure 14 to perform a pinning operation using the pinning cylinder 11 at an appropriate height position.

Further, in order to adapt to the assembly of boom pins of various models, the mounting platform 12 of the pin press 10 may be provided with a translation guide rail 15, and the pin press cylinder 11 is mounted to the translation guide rail 15 to be movable on the mounting platform 12 in a horizontal direction (left-right direction in a view of fig. 7) perpendicular to the pin press direction. The pressure pin oil cylinder 11 can be in transmission connection with the translation oil cylinder 17, so that the translation oil cylinder 17 can adjust the moving position of the pressure pin oil cylinder 11 on the translation guide rail 15, and automatic control is convenient to realize. In addition, the pin pressing cylinder 11 may have a laser auxiliary positioning element 16 facing the pin pressing direction for assisting in completing the alignment of the pin pressing machine 10 with the pin hole.

The lifting and press-fitting process of the movable arm pin shaft can improve the automation degree of the assembly of the excavator. In order to facilitate remote control by an operator, a remote controller or an operation console for operating the pin roll handling equipment and the pin press 10 may be provided, and the operation console may be arranged in the employee work area 21 of the employee work platform 20.

The following briefly describes an installation process of a boom pin roll in connection with a workstation for installing a boom pin roll according to a preferred embodiment of the present invention: the logistics conveys the movable arm pin shaft to the pin shaft storage area 22, the staff operates the magnetic attraction device 35 of the cantilever crane 30 to absorb the movable arm pin shaft, and the cantilever crane moves to a specified position under manual or automatic operation; then the pin pressing machine 10 moves to a designated position under manual or automatic operation, and staff operates a remote controller (or an operation platform) to operate a pin pressing oil cylinder of the pin pressing machine 10 to complete pin pressing operation.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the utility model, numerous simple modifications can be made to the technical solution of the utility model, including combinations of the individual specific technical features in any suitable way. The utility model is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. A workstation for installing a boom pin, comprising:

the pin shaft hoisting equipment is arranged to hoist the movable arm pin shaft to be installed to an assembling position;

and the pin pressing machine (10), the pin pressing machine (10) is arranged to be capable of pressing the movable arm pin shaft lifted to the assembling position by the pin shaft lifting equipment into a pin hole of the movable arm.

2. The workstation for installing the boom pin shaft according to claim 1, further comprising an employee work platform (20), wherein the employee work platform (20) is provided with an employee work area (21) and a pin shaft storage area (22), and the pin shaft hoisting equipment is arranged to hoist and place the boom pin shaft placed in the pin shaft storage area (21).

3. The workstation for installing a boom pin according to claim 2, characterized in that the pin handling equipment and the pin press (10) are arranged between the employee work area (21) and the pin storage area (22) and/or the pin handling equipment is arranged between the pin press (10) and the pin storage area (22).

4. The workstation for installing the boom pin shaft according to claim 1, characterized in that the pin press (10) has an installation platform (12) installed with a pin press cylinder (11), the height of the table top of the staff working area (21) is not lower than the height of the table top of the installation platform (12), and a guardrail (23) at least surrounding the staff working area (21) is arranged on the staff working platform (20).

5. The workstation for installing a boom pin according to claim 1, wherein the pin handling apparatus is a boom (30) and has:

a column (31), wherein the column (31) is fixed on the ground;

a swing arm (32), wherein the swing arm (32) is mounted on the upright (31) and can rotate around the central axis of the upright (31);

a mobile trolley (33), wherein the mobile trolley (33) is arranged on the swing arm (32) and can move towards or away from the upright post (31) along the swing arm (32); and the number of the first and second groups,

a hoisting device (34), wherein the hoisting device (34) is connected to the mobile trolley (33) and can release or wind the hoisting rope to hoist the movable arm pin shaft.

6. The workstation for installing the boom pin according to claim 5, wherein a magnetic attraction device (35) is connected to a free end of the sling to enable the boom pin to be attracted by magnetic attraction.

7. The workstation for installing the boom pin shaft according to claim 1, wherein the pin press (10) comprises a frame (13) fixed on the ground, a mounting platform (12) connected to the frame (13), and a lifting mechanism (14) capable of driving the mounting platform (12) to lift along the frame (13), the mounting platform (12) is provided with a pin press cylinder (11), and the pin press direction of the pin press cylinder (11) faces to the side away from the frame (13).

8. Workstation for mounting a boom pin according to claim 7, characterized in that a translation guide rail (15) is provided on the mounting platform (12), that the press pin cylinder (11) is mounted to the translation guide rail (15) to be movable on the mounting platform (12) in a horizontal direction perpendicular to the press pin direction, and/or that the press pin cylinder (11) has a laser assisted positioning element (16) facing the press pin direction.

9. Workstation for installing a boom pin according to claim 1, characterized in that it has a remote control and/or an operating console for operating the pin handling equipment and/or the pin press (10).

10. The workstation for mounting a boom pin according to claim 1, wherein the workstation is arranged adjacent to an excavator assembly line (40) to enable the boom to be assembled to an excavator body through the boom pin.