Auxiliary welding device for oversized digging track frame

Abstract

The utility model discloses an oversized digging track frame welding auxiliary device which comprises two symmetrically-arranged fixing seats, inner pipes are arranged on the inner sides of the fixing seats in a sliding mode, the end portions of the inner pipes are connected with end plates, one sides of the end plates are connected with sliding seats, and side sliding grooves are formed in the side walls of the opposite sides of the two fixing seats. Bottom sliding grooves are formed in the side walls of the bottoms of the fixing bases, supporting vertical plates are connected to the bottoms of the inner pipes, a connecting plate is arranged between the two inner pipes, the two ends of the connecting plate are connected with the inner pipes through reinforcing plates, the two fixing bases are connected through a mounting plate, and a lead screw is rotationally arranged on the end face of the mounting plate through a bearing and a clamping spring. The track frame welding device has the advantages that the track frame welding device is simple in structure and low in cost, the size of the track frame welding device can be adjusted, and the track frame welding device can be suitable for welding track frames of various models.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator accessories, in particular to a welding auxiliary device for a super-large excavator crawler frame. Background Art

[0002] The crawler frame of a super-large excavator needs to be erected during production and welding, because the crawler frame of a super-large excavator is large in size and heavy in weight, and is not easy to operate. If a traveling crane is used to lift it for a long time, its stability cannot be guaranteed, which is not conducive to welding operations. In order to solve the above problems, technical personnel in this field have designed special bases and tooling for auxiliary welding. At present, most of the common bases and tooling on the market use steel structure designs with fixed mechanisms that cannot adjust the width. They can only be used for welding operations on crawler frames of fixed models, and cannot be applied to multiple models. Reserves of a large number of different models of tooling are not conducive to cost control. At the same time, the tooling replacement operation is cumbersome, affecting work efficiency.

[0003] Therefore, designing a device with simple structure, low cost and adjustable size suitable for welding crawler frames of various models is exactly the problem that the inventor wants to solve. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a super-large excavator crawler frame welding auxiliary device, which can achieve the functions of simple structure, low cost, adjustable size and suitable for welding crawler frames of various models.

[0005] The technical solution adopted by the device of the utility model is: an auxiliary device for welding a super-large excavator crawler frame, which includes two symmetrically arranged fixing seats, an inner tube is slidably arranged on the inner side of the fixing seats, the end of the inner tube is connected to an end plate, one side of the end plate is connected to a sliding seat, side sliding grooves are provided on the side walls on the opposite sides of the two fixing seats, a bottom sliding groove is provided on the bottom side wall of the fixing seat, a supporting vertical plate is connected to the bottom of the inner tube, a connecting plate is provided between the two inner tubes, both ends of the connecting plate are connected to the inner tube through a reinforcing plate, the two fixing seats are connected through a mounting plate, and the end surface of the mounting plate is connected by an axis. A screw rod is arranged for the bearing and the retaining spring to rotate, and the threaded part of the screw rod passes through the connecting plate, and a threaded sleeve is arranged between the screw rod and the connecting plate, and the threaded sleeve is matched with the screw rod thread. An I-beam is connected between the upper end surfaces of the two fixed seats and between the upper end surfaces of the two sliding seats, and the right part of the upper end surface of the I-beam is connected to the first column, and the side wall of the first column is connected to the I-beam through the first reinforcing beam, and a top screw thread hole is opened on the end surface of the first column, and a sliding sleeve is slidingly arranged on the outer side of the right part of the upper end surface of the I-beam, and the upper end surface of the sliding sleeve is connected to the second column, and the side wall of the second column is connected to the sliding sleeve through the second reinforcing beam.

[0006] Furthermore, the bottom end surface of the supporting vertical plate is flush with the bottom end surface of the fixing seat and is slidably matched.

[0007] Furthermore, the reinforcing plate is slidably matched with the side sliding groove.

[0008] Furthermore, the tail of the screw rod is connected with a limiting bolt.

[0009] Furthermore, a fastening bolt is threadedly connected to the tail of the end surface of the sliding sleeve.

[0010] Furthermore, a positioning hole is provided on the I-beam, a limiting hole is provided on the sliding sleeve, and positioning pins are inserted into the inner sides of the limiting hole and the positioning hole.

[0011] Furthermore, the positioning pin includes two symmetrically arranged pins, the upper ends of the pins are connected to a horizontal plate, the upper ends of the horizontal plates are connected to a vertical plate, and the pins pass through the limiting holes and the positioning holes in sequence from top to bottom.

[0012] Furthermore, the bottom of the end surface of the first column is connected to a limiting block.

[0013] Furthermore, the head of the screw rod is provided with an external hexagonal structure.

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

[0015] 1. The utility model adopts a structure in which the spacing can be adjusted in two directions, and the spacing between the first column and the second column, and the spacing between the first columns on the same side are all set to adjustable structures, thereby achieving the functions of simple structure, low cost, adjustable size and applicable to welding of crawler frames of various models. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural view of the utility model.

[0017] Figure 2 It is a structural view of the utility model in an expanded state.

[0018] Figure 3 This is a structural view of the positioning hole of the utility model.

[0019] Figure 4 This is a structural view of the positioning pin of the utility model.

[0020] Figure 5 This is a view of the traditional base tooling structure.

[0021] Explanation of the accompanying drawings: 1-fixed seat; 2-sliding seat; 3-end plate; 4-I-beam; 5-first column; 6-limiting block; 7-first reinforcing beam; 8-top screw threaded hole; 9-bottom slide groove; 10-sliding sleeve; 11-second reinforcing beam; 12-second column; 13-locating pin; 14-side slide groove; 15-connecting plate; 16-reinforcement plate; 17-threaded sleeve; 18-inner tube; 19-bearing; 20-screw; 21-locating hole; 22-pin; 23-supporting plate. DETAILED DESCRIPTION

[0022] The following is a further description of the present invention in conjunction with specific embodiments. 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 content 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.

[0023] Example 1: See Figures 1 to 4 The utility model has a structural view, an unfolded state structural view, a positioning hole 21 structural view, and a positioning pin 13 structural view, which is an auxiliary device for welding a super-large crawler frame, and includes two symmetrically arranged fixed seats 1, an inner tube 18 is slidably arranged on the inner side of the fixed seat 1, an end plate 3 is connected to the end of the inner tube 18, and a sliding seat 2 is connected to one side of the end plate 3. Side sliding grooves 14 are provided on the side walls on the opposite sides of the two fixed seats 1, and a bottom sliding groove 9 is provided on the bottom side wall of the fixed seat 1. A supporting vertical plate 23 is connected to the bottom of the inner tube 18, and the bottom end surface of the supporting vertical plate 23 is flush with the bottom end surface of the fixed seat 1 and slidably matched. A connecting plate 15 is provided between the two inner tubes 18. Both ends of the connecting plate 15 are connected to the inner tube 18 through the reinforcing plate 16, and the reinforcing plate 16 is slidably matched with the side slide groove 14. The fixed seat 1, the sliding seat 2, and the inner tube 18 are all square tube structures. The inner tube 18 is sleeved on the inner side of the fixed seat 1 and slides relative to the fixed seat 1. The reinforcing plate 16 and the supporting vertical plate 23 can be used as guides and limiters during the sliding process. The connection between the inner tube 18 and the sliding seat 2 is connected through the end plate 3. The bottom surfaces of the sliding seat 2 and the fixed seat 1 are flush. When the inner tube 18 and the sliding seat 2 slide away from the fixed seat 1 together, the supporting vertical plate 23 can provide support for the inner tube 18, so as to reduce the stress at the connection between the sliding seat 2, the inner tube 18 and the end plate 3.

[0024] The two fixed seats 1 are connected by a mounting plate, and a screw rod 20 is rotatably arranged on the end surface of the mounting plate through a bearing 19 and a retaining spring. The threaded portion of the screw rod 20 passes through the connecting plate 15, and a threaded sleeve 17 is arranged between the screw rod 20 and the connecting plate 15. The threaded sleeve 17 is threadedly matched with the screw rod 20, and the head of the screw rod 20 is provided with an external hexagonal structure. By using a tool, such as a wrench, the head of the screw rod 20 is operated to rotate, the screw rod 20 rotates, and the threaded sleeve 17 is fixed to the connecting plate 15 by bolts. Because the threaded sleeve 17 cannot rotate, the rotation of the screw rod 20 is converted into axial movement of the threaded sleeve 17 through the thread, thereby driving the connecting plate 15 and the inner tube 18 to move, thereby further adjusting the distance between the sliding seat 2 and the fixed seat 1.

[0025] An I-beam 4 is connected between the upper end surfaces of the two fixed seats 1 and between the upper end surfaces of the two sliding seats 2. The right part of the upper end surface of the I-beam 4 is connected to a first column 5. The side wall of the first column 5 is connected to the I-beam 4 through a first reinforcing beam 7. A top screw threaded hole 8 is provided on the end surface of the first column 5. A sliding sleeve 10 is slidably provided on the outer side of the right part of the upper end surface of the I-beam 4. The upper end surface of the sliding sleeve 10 is connected to a second column 12. The side wall of the second column 12 is connected to the sliding sleeve 10 through a second reinforcing beam 11. A positioning hole 21 is provided on the I-beam 4, and a limited hole is provided on the sliding sleeve 10. A positioning pin 13 is inserted in the inner side of the limited hole and the positioning hole 21. The positioning pin 13 includes two symmetrically arranged pins 22. The upper end of the pin 22 is connected to a horizontal plate. The upper end of the horizontal plate is connected to a vertical plate. The pin 22 passes through the limiting hole and the positioning hole 21 from top to bottom in sequence. The utility model is provided through the first column 5. The second column 12 cooperates to clamp and limit the super-large excavation crawler frame from both sides, wherein the first column 5 is used as a fixed structure, and a top screw threaded hole 8 is arranged on it. The number of the top screw threaded holes 8 can be no less than three, and they are distributed at different heights. The internal threads of the top screw threaded holes 8 are provided with top screws, and the super-large excavation crawler frame can be tightened by the top screws. In order to be suitable for the welding operation of super-large excavation crawler frames of various specifications and models, a sliding sleeve 10 that can slide is provided to drive the second column 12. When installing before welding, adaptive adjustment can be made so that the spacing between the first column 5 and the second column 12 meets the operation requirements. The position of the positioning hole 21 opened on the I-beam 4 is opened according to the position of the upper limit hole of the sliding sleeve 10 when the installation of super-large excavation crawler frames of different specifications is completed. Whenever the position of the sliding sleeve 10 is adjusted, the limiting hole and the positioning hole 21 may be penetrated by the latch 22 to facilitate positioning.

[0026] Embodiment 2: Not all specifications of super-large excavator crawler frames can find a suitable position on the I-beam 4 to open the positioning hole 21 when they are installed. Under the fixing conditions of some crawler frames, the existing positioning hole 21 needs to be staggered with the limit hole, and the pin 22 cannot be used for positioning. Furthermore, a fastening bolt is threadedly connected to the tail of the end face of the sleeve 10. If the pin 22 cannot be used for positioning, the fastening bolt is tightened on the I-beam 4 by means of a top screw to fix and position it.

[0027] Embodiment 3: The connecting plate 15 slides off the screw rod 20 during normal adjustment. Furthermore, a limiting bolt is connected to the tail of the screw rod 20 .

[0028] Embodiment 4: In order to improve the installation efficiency and simplify the installation steps during the installation of the crawler frame, a limiting block 6 is further connected to the bottom of the end surface of the first column 5. The two limiting blocks 6 are used to assist in quickly positioning the crawler frame to simplify the installation. The setting of the limiting block 6 is related to the external structure of the crawler frame.

[0029] See also Figure 5 This is a view of the traditional base tooling structure. At present, most of the bases and tooling commonly seen on the market are designed with steel structures. The fixed mechanism cannot adjust the width. They can only be used for welding operations on the crawler frames of fixed models, and cannot be applied to multiple models. Reserves of a large number of different types of tooling are not conducive to cost control. At the same time, the tooling replacement operation is cumbersome, affecting work efficiency.

[0030] The utility model adopts a structure in which the spacing can be adjusted in two directions, and the spacing between the first column 5 and the second column 12 and the spacing between the first columns 5 on the same side are all set to adjustable structures, thereby achieving the functions of simple structure, low cost, and adjustable size suitable for welding of crawler frames of various models.

Claims

1. A super large excavator crawler frame welding auxiliary device, characterized in that: The invention comprises two symmetrically arranged fixing seats (1), wherein an inner tube (18) is slidably arranged on the inner side of the fixing seats (1), an end of the inner tube (18) is connected to an end plate (3), one side of the end plate (3) is connected to a sliding seat (2), a side sliding groove (14) is provided on the side wall on the opposite side of the two fixing seats (1), a bottom sliding groove (9) is provided on the bottom side wall of the fixing seats (1), a supporting vertical plate (23) is connected to the bottom of the inner tube (18), a connecting plate (15) is provided between the two inner tubes (18), both ends of the connecting plate (15) are connected to the inner tube (18) via a reinforcing plate (16), the two fixing seats (1) are connected via a mounting plate, a screw rod (20) is rotatably arranged on the end surface of the mounting plate via a bearing (19) and a retaining spring, and the screw rod (20) is screwed to the inner tube (18). The threaded portion passes through the connecting plate (15), a threaded sleeve (17) is provided between the screw rod (20) and the connecting plate (15), the threaded sleeve (17) and the screw rod (20) are threadedly matched, an I-beam (4) is connected between the upper end surfaces of the two fixed seats (1) and between the upper end surfaces of the two sliding seats (2), the right part of the upper end surface of the I-beam (4) is connected to a first column (5), the side wall of the first column (5) is connected to the I-beam (4) through a first reinforcing beam (7), a top screw thread hole (8) is provided on the end surface of the first column (5), a sliding sleeve (10) is slidably provided on the outer side of the right part of the upper end surface of the I-beam (4), the upper end surface of the sliding sleeve (10) is connected to a second column (12), and the side wall of the second column (12) is connected to the sliding sleeve (10) through a second reinforcing beam (11).

2. The super large excavator crawler frame welding auxiliary device according to claim 1 is characterized in that: The bottom end surface of the supporting vertical plate (23) is flush with the bottom end surface of the fixing seat (1) and is slidably matched.

3. The super large excavator crawler frame welding auxiliary device according to claim 1, characterized in that: The reinforcing plate (16) is slidably matched with the side sliding groove (14).

4. The super large excavator crawler frame welding auxiliary device according to claim 1, characterized in that: The tail of the screw rod (20) is connected with a limiting bolt.

5. The super large excavator crawler frame welding auxiliary device according to claim 1, characterized in that: A fastening bolt is threadedly connected to the tail of the end surface of the sliding sleeve (10).

6. The super large excavator crawler frame welding auxiliary device according to claim 1, characterized in that: The I-beam (4) is provided with a positioning hole (21), the sliding sleeve (10) is provided with a limiting hole, and positioning pins (13) are inserted into the inner sides of the limiting hole and the positioning hole (21).

7. The super large excavator crawler frame welding auxiliary device according to claim 6, characterized in that: The positioning pin (13) comprises two symmetrically arranged plug pins (22), the upper ends of the plug pins (22) are connected to a horizontal plate, the upper ends of the horizontal plates are connected to a vertical plate, and the plug pins (22) pass through the limiting hole and the positioning hole (21) in sequence from top to bottom.

8. The super large excavator crawler frame welding auxiliary device according to claim 1, characterized in that: The bottom of the end surface of the first column (5) is connected to a limiting block (6).

9. The super large excavator crawler frame welding auxiliary device according to claim 1, characterized in that: The head of the screw rod (20) is provided with an external hexagonal structure.

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