CN207483223U - Novel jack-screw type adheres to frame - Google Patents

Abstract

The utility model discloses a novel top-screw type attachment frame, which comprises a front beam and a rear beam which are mutually connected to form a square attachment frame, connecting plates are fixed on both sides of the front beam, and wedges and hoops are arranged at the inner corners of the attachment frame. , the two ends of the hoop are fixedly connected to the attached frame; there is a threaded hole in the middle of the hoop, and the ejector rod is screwed into the threaded hole, and the side of the ejector rod facing the inner corner is connected with a jacking block, and the jacking block moves away or approaches with the rotation of the ejector rod The inner corners of the attachment box. The utility model has the advantages of simple structure, convenient operation, reduced diagonal struts in structure, reduced welding, omitted a large number of pin shafts, saved work and trouble in the production process, and improved the efficiency of production and processing; the adjustable performance is good, In terms of fixing the standard section of the tower body, the main chord of the standard section of the tower body is fixed by the jack rod and the top block to form a fixed and reliable structure; Reliable top wire attachment frame structure.

Description

New top wire attachment frame

technical field

The utility model relates to a tower crane attachment frame, which belongs to the field of engineering machinery, in particular to a novel top wire attachment frame.

Background technique

The attachment frame is composed of three struts, a pair of lugs, a pair of inner struts and a set of ring beams. It mainly fixes the tower crane on the pillars of the building and plays an attachment role. When using the ring beam Set on the standard section, the three struts are hinged with a pair of lugs, and the lugs are anchored to the building. The three struts should be kept at the same level. In the existing design, the attached frame structure is shown in Figure 1. However, the attachment frame of this structural form is inconvenient to install and disassemble, requires high structural strength, and the structure is relatively heavy.

Contents of the invention

Aiming at the above-mentioned problems in the prior art, the utility model provides a new top-screw type attachment frame, which can achieve simple and quick installation; meanwhile, it can keep the attachment frame in a horizontal position during long-term use.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a new top-screw type attachment frame, including a U-shaped front beam and a U-shaped rear beam connected to each other to form a square attachment frame, and both sides of the front beam are fixed. There are connecting plates, wedges and hoops are arranged at the four inner corners of the attachment frame, and the two ends of the hoop are fixedly connected to the attachment frame; a threaded hole is opened in the middle of the hoop, and the threaded hole is internally rotated A push rod with an external thread is inserted, and the side of the push rod facing the inner corner is connected with a top block, and the top block moves away from or approaches the inner corner of the attachment frame as the push rod rotates.

Further, the hoop includes a support part, and the two ends of the support part are fixed to the attachment frame perpendicular to the attachment frame through the fixing part. There is a threaded hole in the center of the support part, which is inserted into the push rod and fixed vertically to the attachment frame through the fixing part. The attachment frame can effectively ensure the overall structural strength of the attachment frame.

Further, the connection between the ejector rod and the ejector block is provided with a T-shaped disc-shaped connector, including a disc-shaped head, and a cylindrical connector with a diameter smaller than the head; the ejector block and the ejector rod The connecting part is provided with a cavity that can accommodate a T-shaped disc-shaped connector. The diameter of the opening of the cavity facing the ejector side is smaller than that of the T-shaped disc-shaped connector, and an inlet is opened on the side of the top block. And there is a movable block at the entrance to prevent the T-shaped disc-shaped connector from coming out of the chamber during operation. By setting the connector and the chamber, it can be ensured that the ejector block does not rotate with the rotation of the ejector rod, and only approaching, Movement away from inside corners.

The beneficial effects of the utility model are: the structure reduces the diagonal brace, reduces welding, omits a large number of pin shafts, saves work and trouble in the production process, and improves the efficiency of production and processing; the adjustable performance is good. For the fixing of the standard section of the tower body, the main chord of the standard section of the tower body is fixed by the ejector rod and the top block to form a fixed and reliable structure; The top wire type attachment frame structure.

Description of drawings

Fig. 1 is a schematic structural diagram of the prior art;

Fig. 2 is a structural representation of the utility model;

Figure 3 is a schematic diagram of the connection between the ejector rod and the ejector block.

In the figure: 1, front beam, 11, connecting plate, 2, top block, 21, chamber, 3, ejector rod, 31, connector, 4, hoop, 41, support part, 42, fixed part, 5, Back beam, 6, wedge.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 2, a new type of top-screw attachment frame includes a U-shaped front beam 1 and a U-shaped rear beam 5 that are connected to each other to form a square attachment frame. Both sides of the front beam 1 are fixed with connecting plates 11, The four inner corners of the attached frame are all provided with wedges 6 and hoops 4, and the two ends of the hoop 4 are fixedly connected to the attached frame; the middle part of the hoop 4 has a threaded hole, and the threaded hole A push rod 3 with an external thread is internally screwed in, and the side of the push rod 3 facing the inner corner is connected with a jack block 2, and the jack block 2 moves away from or approaches the inner corner of the attachment frame as the push rod 3 rotates.

Further, the hoop 4 includes a support part 41, the two ends of the support part 41 are fixed to the attachment frame through the fixing part 42 perpendicular to the attachment frame, and the center of the support part 41 has a threaded hole, which is inserted into the push rod 3 , the vertical fixation to the attachment frame by the fixing portion 42 can effectively ensure the overall structural strength of the attachment frame.

Further, as shown in FIG. 3 , the connection between the push rod 3 and the top block 2 is provided with a T-shaped disk-shaped connection head 31, including a disk-shaped head and a cylindrical connection portion with a diameter smaller than the head. The connecting portion of the top block 2 and the push rod 3 has a chamber 21 that can accommodate a T-shaped disc-shaped connection head 31, and the opening diameter of the chamber 21 toward the side of the push rod 3 is smaller than that of the connection head 31 The diameter of the head, and an entrance is provided on the side of the top block 2, and a movable baffle is provided at the entrance to prevent the T-shaped disc-shaped connection head 31 from breaking out of the chamber 21 during work. By setting the connection head 31 and The chamber 21 can ensure that the top block 2 does not rotate with the rotation of the push rod 3, but only moves close to and away from the inner corner of the attachment frame.

The application process of the utility model is as follows: firstly, build a temporary platform on the standard section where the attachment frame is to be installed, lift the front beam to the installation height so that it faces the side of the building, and make the two connecting plates 11 on the front beam be stuck on the standard section on the transverse bar. Use a chain hoist to temporarily fix the front beam 1 on the tower body, lift the rear beam 5 to the back of the tower body, and connect the front beam 1 and the rear beam 5 through bolts; fix the clamp 4 to the attachment frame, and rotate the ejector rod 3 , drive the top block 2 to gradually approach the main string of the standard section until the top block 2 contacts the main steel of the tower body, then put the wedge 6 between the attachment frame and the main steel of the tower body, and tap it tightly; rotate the top rod 3 , drive the top block 2 to fix the main steel of the tower body firmly, and then tighten the wedge block 6 to ensure that the attachment frame and the main string of the standard section are firmly fixed.

In summary, the utility model has a simple structure and is easy to operate. The structure reduces the number of diagonal struts, reduces welding, omits a large number of pins, saves work and trouble in the production process, and improves the efficiency of production and processing; The adjustable performance is good. In terms of fixing the standard section of the tower body, the main chord of the standard section of the tower body is fixed by the jack rod and the top block to form a fixed and firm structure; A simple, safe and reliable top-screw attachment frame structure.

Claims (3)

1. a kind of novel jack-screw type attachment frame, which is characterized in that the U-shaped front-axle beam of square adhesion frame is formed including being connected with each other （1）And the U-shaped back rest（5）, the front-axle beam（1）Two side ends be all fixed with connecting plate（11）, four interior angles of the adhesion frame Place is all provided with voussoir（6）And anchor ear（4）, the anchor ear（4）Both ends be fixedly attached to adhesion frame；The anchor ear（4） Middle part be provided with threaded hole, screwed in the threaded hole with externally threaded mandril（3）, the mandril（3）Towards the one of interior angle Side is connected with jacking block（2）, jacking block（2）With mandril（3）Be pivoted away from or close to attachment frame interior angle.

A kind of 2. novel jack-screw type attachment frame according to claim 1, which is characterized in that the anchor ear（4）Including support Portion（41）, the support portion（41）Both ends pass through fixed part（42）Adhesion frame, the branch are fixed to perpendicular to adhesion frame Support part（41）Center be provided with threaded hole, be placed in mandril（3）.

A kind of 3. novel jack-screw type attachment frame according to claim 1, which is characterized in that the mandril（3）With jacking block（2） Connecting portion be provided with T-shaped discoid connector（31）, the cylinder on head is less than including discoidal head and diameter Connecting portion；The jacking block（2）With mandril（3）Connecting portion be provided with and can accommodate T-shaped discoid connector（31）Chamber（21）, The chamber（21）Towards mandril（3）The opening diameter of side is less than connector（31）Head diameter, and in jacking block（2）Side Portion is provided with entrance, and inlet is provided with removable catch.