Assembly device for movable arm rear support of ultra-large excavator

Abstract

The utility model discloses an assembly device for a movable arm rear support of an ultra-large type excavator, which is characterized in that two symmetrical positioning devices are arranged on the front side of a base, a front supporting device is arranged on the rear sides of the positioning devices, a jacking device is arranged on the right side of the front supporting device, a rear supporting device is arranged on the rear side of the front supporting device, and the jacking device is arranged on the right side of the rear supporting device. According to the device, through the arrangement of the positioning device with the positioning block, a shaft hole in the support can be positioned, a bent plate of the support is positioned through the front supporting device and the rear supporting device, a large amount of measurement and assembly time is saved, after fixing, displacement of the bent plate and a side plate of the support can be avoided, the subsequent adjustment step is omitted, and the production efficiency is improved. Labor intensity is reduced, welding operation is facilitated, and good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mounting auxiliary devices, in particular to an assembly device for a rear support of a boom of a super-large excavator. Background Art

[0002] The boom of the excavator is connected to the rear support of the boom by a rotating shaft, and the rear support of the boom is fixed on the turntable of the excavator. At present, in the production process, the rear support of the boom of the excavator is usually assembled and welded by manual measurement. The measurement and assembly time is long, especially for the rear support of the boom of large and super-large excavators. The labor intensity is large and the operation is inconvenient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pairing device for the rear support of the boom of an ultra-large excavator in view of the deficiencies of the prior art, so as to solve at least one of the above technical problems.

[0004] The utility model solves the above technical problems with the following technical solutions: a pairing device for a rear support of a boom of a super-large excavator, comprising a base, two mutually symmetrical positioning devices are arranged on the front side of the base, a front supporting device is arranged on the rear side of the positioning device, a tightening device is arranged on the right side of the front supporting device, and a rear supporting device is arranged on the rear side of the front supporting device;

[0005] The positioning device is in a vertical column shape, a shaft sleeve is provided on the upper part of the positioning device, the shaft sleeve is slidably connected with a shaft body, a positioning block is provided at the end of the shaft body, a first threaded seat is provided on one side of the positioning device and the first threaded seat is provided corresponding to the shaft body, the first threaded seat is connected to a first screw rod through a thread, the end of the first screw rod is connected to a first top block through a rotating shaft, and the first top block is provided corresponding to the end of the shaft body;

[0006] The front supporting device is platform-shaped, a limit plate is provided at the left end of the front supporting device, and a first cushion block is provided above the front supporting device;

[0007] The jacking device is in the shape of a column, and a second threaded seat is arranged on the upper part of the jacking device, the second threaded seat is connected to a second screw rod through a thread, and the end of the second screw rod is connected to a second jacking block through a rotating shaft;

[0008] The rear supporting device is platform-shaped, and a second cushion block is arranged above the rear supporting device.

[0009] Furthermore, the first threaded seat is connected to the positioning device through a bracket.

[0010] Furthermore, the positioning block is in the shape of a stepped frustum.

[0011] Furthermore, a plurality of fixing seats are arranged around the base, and the fixing seats are provided with bolt holes.

[0012] Furthermore, the other ends of the first screw rod and the second screw rod are both provided with a nut-shaped polygonal structure.

[0013] Furthermore, the other ends of the first screw rod and the second screw rod are both provided with a handle structure.

[0014] The beneficial effects of the utility model are:

[0015] This device is provided with a positioning device with a positioning block, so that the axial hole on the support can be positioned, and the bent plate of the support can be positioned by the front supporting device and the rear supporting device, which saves a lot of measurement and assembly time. After fixation, the bent plate and side plate of the support can be prevented from displacement, and the subsequent adjustment steps are omitted, which reduces labor intensity, facilitates welding operations, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the positioning device of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] Base 1; fixed seat 11; positioning device 2; sleeve 21; shaft body 22; positioning block 23; first threaded seat 24; first screw rod 25; first rotating shaft 26; first top block 27; front support device 3; limit plate 31; first cushion block 32; tightening device 4; second threaded seat 41; second screw rod 42; second rotating shaft 43; second top block 44; rear support device 5; second cushion block 51. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0021] Example 1: See Figures 1 to 2 It is a schematic diagram of each structure of the utility model, including a base 1, two mutually symmetrical positioning devices 2 are arranged on the front side of the base 1, a front supporting device 3 is arranged on the rear side of the positioning device 2, a tightening device 4 is arranged on the right side of the front supporting device 3, and a rear supporting device 5 is arranged on the rear side of the front supporting device;

[0022] The positioning device 2 is a vertical column, and a shaft sleeve 21 is provided on the upper part of the positioning device 2. The shaft sleeve 21 is slidably connected with a shaft body 22. A positioning block 23 is provided at the end of the shaft body 22 to position the shaft hole of the side plate. A first threaded seat 24 is provided on one side of the positioning device 2, and the first threaded seat 24 is correspondingly arranged with the shaft body 22. The first threaded seat 24 is connected with a first screw rod 25 through a thread, and the end of the first screw rod 25 is connected with a first top block 27 through a first rotating shaft 26. The first top block 27 is correspondingly arranged with the end of the shaft body 22. By rotating the first screw rod 25, the first top block 27 drives the shaft body 22, thereby adjusting the position of the side plate and fixing the side plate.

[0023] The front support device 3 is platform-shaped, and a limit plate 31 is provided at the left end of the front support device 3, the limit plate 31 corresponds to the second top block 44, and a first cushion block 32 is provided above the front support device 3, and the first cushion block 32 is used to adjust the height of the bent plate;

[0024] The jacking device 4 is in the shape of a column, and a second threaded seat 41 is provided on the upper part of the jacking device 4. The second threaded seat 41 is connected to a second screw rod 42 through a thread, and the end of the second screw rod 42 is connected to a second jacking block 44 through a second rotating shaft 43. The second jacking block 44 is fixed to the side plate corresponding to the limiting plate 31;

[0025] The rear support device is platform-shaped, and a second cushion block 51 is arranged above the rear support device.

[0026] Specifically, the first threaded seat 24 is connected to the positioning device 2 through a bracket.

[0027] Specifically, the positioning block 23 is in the shape of a stepped frustum, corresponding to the shaft hole of the side plate.

[0028] Specifically, a plurality of fixing seats 11 are arranged around the base 1, and the fixing seats 11 are provided with bolt holes to facilitate fixing the device.

[0029] Specifically, the other ends of the first screw rod 25 and the second screw rod 42 are both provided with nut-shaped polygonal structures, so as to facilitate the adjustment of the second top block 44 and the positioning block 23 using a wrench.

[0030] Specifically, the other ends of the first screw rod 25 and the second screw rod 42 are both provided with a handle structure to facilitate the adjustment of the second top block 44 and the positioning block 23 .

[0031] When using the utility model, the rear support of the boom is composed of two side plates with axial holes and a U-shaped bent plate in front of the two side plates. When in use, the two side plates are hoisted to the positioning device 2 by a hoisting device, so that the axial holes of the side plates are inserted into the positioning blocks 23, and the bent plate is hoisted to the front supporting device 3 and the rear supporting device 5 by the hoisting device, and placed between the two side plates. The side plate on one side is fitted with the limit plate 31, and the two side plates are clamped and fixed by adjusting the positioning block 23 and the second top block 44 on the other side. The operator welds the rear support of the boom. After welding, the welded boom support is hoisted and the bottom area that has not been welded is repaired.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for assembling a rear support of a boom of a super-large excavator, characterized in that: It comprises a base (1), wherein two mutually symmetrical positioning devices (2) are arranged on the front side of the base (1), a front supporting device (3) is arranged on the rear side of the positioning device (2), a tightening device (4) is arranged on the right side of the front supporting device (3), and a rear supporting device (5) is arranged on the rear side of the front supporting device; The positioning device (2) is in a vertical column shape. A shaft sleeve (21) is provided on the upper part of the positioning device (2). The shaft sleeve (21) is slidably connected to a shaft body (22). A positioning block (23) is provided at the end of the shaft body (22). A first threaded seat (24) is provided on one side of the positioning device (2). The first threaded seat (24) is arranged corresponding to the shaft body (22). The first threaded seat (24) is connected to a first screw rod (25) via a thread. The end of the first screw rod (25) is connected to a first top block (27) via a first rotating shaft (26). The first top block (27) is arranged corresponding to the end of the shaft body (22). The front supporting device (3) is platform-shaped, a limiting plate (31) is provided at the left end of the front supporting device (3), and a first cushion block (32) is provided above the front supporting device (3); The jacking device (4) is in the shape of a column, a second threaded seat (41) is provided on the upper part of the jacking device (4), the second threaded seat (41) is connected to a second screw rod (42) via a thread, and the end of the second screw rod (42) is connected to a second jacking block (44) via a second rotating shaft (43); The rear support device is platform-shaped, and a second cushion block (51) is arranged above the rear support device.

2. The assembly device for the rear support of the boom of a super-large excavator according to claim 1, characterized in that: The first threaded seat (24) is connected to the positioning device (2) via a bracket.

3. The assembly device for the rear support of the boom of a super-large excavator according to claim 1, characterized in that: The positioning block (23) is in the shape of a stepped frustum.

4. The assembly device for the rear support of the boom of a super-large excavator according to claim 1, characterized in that: A plurality of fixing seats (11) are arranged around the base (1), and the fixing seats (11) are provided with bolt holes.

5. The assembly device for the rear support of the boom of a super-large excavator according to claim 1, characterized in that: The other ends of the first screw rod (25) and the second screw rod (42) are both provided with a nut-shaped polygonal structure.

6. The assembly device for the rear support of the boom of a super-large excavator according to claim 1, characterized in that: The other ends of the first screw rod (25) and the second screw rod (42) are both provided with a handle structure.

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