CN211688018U - Take xarm hydraulic folding mechanism's fast-assembling tower machine - Google Patents

Abstract

The utility model discloses a quick-loading tower crane with a transverse arm hydraulic folding mechanism, which comprises a first section arm and a second section arm, and the first section arm and the second section arm are connected by a transverse arm hydraulic folding mechanism; The arm hydraulic folding mechanism includes a folding arm hydraulic cylinder arranged on the second section arm, the folding arm hydraulic cylinder is connected to the folding arm triangular plate, and the folding arm triangular plate is respectively axially connected to the forearm driving rod and the first connecting plate, and the other end of the forearm driving rod is connected to the first connecting plate. The other ends of a connecting plate are respectively axially connected to two ends of the second connecting plate.

Description

A quick-loading tower crane with a horizontal arm hydraulic folding mechanism

technical field

The utility model relates to the technical field of cranes, in particular to a quick-loading tower crane with a hydraulic folding mechanism of a transverse arm.

Background technique

Since the quick-loading tower crane has a certain height when it is folded, the height of the trailer and the quick-loading tower crane exceeds the allowable height of the road during transportation, which makes the transportation of the quick-loading tower crane difficult. And because the stability of the cross arm is crossed, the collapse accident of the tower crane occurs frequently.

Utility model content

Purpose of the utility model: The technical problem to be solved by the present utility model is to provide a quick-loading tower crane with a horizontal arm hydraulic folding mechanism in view of the deficiencies of the prior art.

In order to solve the above technical problems, the utility model discloses a quick-loading tower crane with a hydraulic folding mechanism of a transverse arm, which comprises a first section arm and a second section arm, and the transverse arm passes between the first section arm and the second section arm. The hydraulic folding mechanism is connected; the horizontal arm hydraulic folding mechanism includes a folding arm hydraulic cylinder arranged on the second arm, the folding arm hydraulic cylinder is connected with the folding arm triangular plate, and the folding arm triangular plate is respectively axially connected to the forearm driving rod and the first connecting plate, and the forearm drives The other end of the rod and the other end of the first connecting plate are respectively axially connected to both ends of the second connecting plate.

In the utility model, the hydraulic cylinder of the folding arm is arranged on the bottom rod of the second section arm, the middle shaft of the first connecting plate is connected to the top rod of the second section arm, and the forearm driving rod and the second connecting plate are both axially connected to the top rod of the second section arm. on the top rod of the first arm.

The utility model includes a tower body, the top of the tower body is connected with the second arm shaft through the cross arm pin shaft, and the bottom of the tower body is nested in the tower body jacket.

The utility model includes a slewing platform, the slewing platform is provided with a folding arm hoist, the folding arm hoist controls the first wire rope, and the first wire rope is fixed to the second arm section after passing around the top pulley.

In the utility model, the hydraulic cylinder of the folding arm is controlled by a hydraulic system.

Beneficial effects: The utility model uses a hydraulic cylinder to replace the traditional wire rope pulley combination, which is easy to operate, has higher strength, can effectively improve the lateral stability, and has a higher safety factor.

Description of drawings

The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the above-mentioned and/or other aspects of the present utility model will become clearer.

Figure 1 is a schematic diagram of the overall structure of the tower crane;

Figure 2 is a schematic diagram of the hydraulic folding mechanism of the horizontal arm.

Fig. 3 is the second schematic diagram of the hydraulic folding mechanism of the cross arm.

Detailed ways

Example 1:

As shown in FIG. 1, this embodiment provides a quick-loading tower crane with a hydraulic folding mechanism of a transverse arm, including a first section arm 16 and a second section arm 15, and the transverse arm passes between the first section arm and the second section arm The hydraulic folding mechanism is connected; the horizontal arm hydraulic folding mechanism includes a folding arm hydraulic cylinder 13 arranged on the second arm 15, the folding arm hydraulic cylinder 13 is connected with the folding arm triangular plate 14a, and the folding arm triangular plate 14a is respectively axially connected to the forearm driving rod 14b and the first A connecting plate 14d, the other end of the forearm driving rod 14b and the other end of the first connecting plate 14d are respectively axially connected to both ends of the second connecting plate 14c.

In this embodiment, the hydraulic cylinder 13 of the folding arm is arranged on the bottom rod of the second section arm 15, the middle shaft of the first connecting plate 14d is connected to the top rod of the second section arm 15, and the forearm driving rod 14b is connected to the second section arm 15. The plate 14c is axially connected to the top rod of the first segment arm 16 .

In this embodiment, a tower body 11 is included, the top of the tower body 11 is axially connected with the second arm 15 through the cross arm pin shaft 12 , and the bottom of the tower body 11 is nested in the tower body jacket 10 .

In this embodiment, a slewing platform 3 is included, and the slewing platform 3 is provided with a folding arm hoist. The folding arm hoist controls the first wire rope, and the first wire rope is fixed to the second arm section 15 after passing around the top pulley.

In this embodiment, the hydraulic cylinder of the folding arm is controlled by the hydraulic system.

specific:

The rotary platform 3 is also provided with a first hoist 2, a gas spring 7, one end of the gas spring 7 is connected to the rotary platform 3 and one end is connected to the tower body jacket 10, and the gas spring 7 plays a buffer role in the process of the tower body from folding to straightening, so that the The whole stretching process is smoother, and the tower body folding mechanism includes a first hoist 2 , a tower body folding pulley block 5 , a tower body lifting pulley block 18 and a fixed pulley 4 . A tripod 8 is fixedly connected to the rotary platform 1 , and the top of the tripod 8 is connected to the lower end of the tower body casing 10 through a pin shaft 9 , and the tower body rotates around the pin shaft 9 . The bottom of the tripod 8 is provided with a pin hole 6 for inserting the fixing pin 6. As shown in FIG. 1, a counterweight and a hydraulic system are provided on the slewing platform 3 away from the tower body.

In this embodiment, the tower body is driven by the first hoist 2 installed on the slewing platform 3 to wind up the hoisting rope 17, tighten the tower body folding pulley block 5, and make the folded tower body wrap around the pin 9 on the tripod 8 rotate.

In this embodiment, in the checked or non-working state, the tower body 11 is nested in the tower body jacket 10, and the first arm and the second arm are in a folded state.

The top of the tower body is movably connected with the transverse arm through the transverse arm pin shaft 12, the second segment arm 15 is folded by the wire rope, and the first segment arm 16 is folded by the folding arm hydraulic cylinder 13 as shown in Figure 3. The hydraulic rod of the folding arm hydraulic cylinder 13 is pushed out, pushing the folding arm triangular plate 14a to move forward, the folding arm hydraulic cylinder 13 and the folding arm triangular plate are hinged together, and the folding arm triangular plate 14a moves forward to push the forearm driving rod 14b to the upper left The movement makes the hinge point of the two steel plates 14c and 14d hinged together move downward, and the steel plate 14c rotates upward around the hinge point to complete the arm folding process, as shown in FIG. 3 .

The expanded state of the transverse arm is that the hydraulic rod of the hydraulic cylinder 13 of the folding arm is retracted, and the two steel plates 14c and 14d hinged on the first arm 16 and the second arm 15 are in a horizontal state, as shown in FIG. 2 .

The self-lowering and folding process of the quick-loading tower crane: as shown in Figure 1, the hydraulic cylinder 13 of the folding arm extends outward to push the first section arm 16 to fold, and the second section arm 15 slowly extends the hoisting rope from the rope of the second hoist 24 21. The rope 21 is stretched out, the second arm is folded, and the tower body 11 retracts the tower body jacket 10 under the action of the fixed pulley block 18. When the tower body is folded, first extract the fixed pin 6 at the bottom of the tower body, and then move in the opposite direction of the transverse arm. A reverse force is applied, the rope of the first hoist 2 is slowly stretched out, the hoisting rope 17 is stretched out, and the tower body folding pulley block 5 is tightened, so that the tower body jacket 10 is wound around the twist point pin on the tripod 8 on the slewing platform 2 When the shaft 9 rotates, the tower body hole 22 is separated from the slewing platform 23 , so that the tower crane is folded onto the slewing platform 2 .

The self-raising or extension of the quick-loading tower crane is the opposite of the self-lowering or folding process of the quick-loading tower crane.

The present utility model provides an idea and method for a quick-loading tower crane with a transverse arm hydraulic folding mechanism. There are many specific methods and approaches for realizing the technical solution. The above are only the preferred embodiments of the present utility model. It should be pointed out that, For those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims (5)

1. A fast-assembling tower crane with a cross arm hydraulic folding mechanism is characterized by comprising a first arm section (16) and a second arm section (15), wherein the first arm section and the second arm section are connected through the cross arm hydraulic folding mechanism; the cross arm hydraulic folding mechanism comprises a folding arm hydraulic cylinder (13) arranged on a second section arm (15), the folding arm hydraulic cylinder (13) is connected with a folding arm triangular plate (14a), the folding arm triangular plate (14a) is fixedly connected with a front arm driving rod (14b), the folding arm triangular plate (14a) is connected with a first connecting plate (14d) through a shaft, the other end of the front arm driving rod (14b) is fixedly connected with a second connecting plate (14c) and a first section arm (16), and the other end of the second connecting plate (14c) is connected with a first connecting plate (14d) through a shaft.

2. The quick-assembly tower crane with the cross arm hydraulic folding mechanism is characterized in that a folding arm hydraulic cylinder (13) is arranged on a bottom rod of a second joint arm (15), the middle part of a first connecting plate (14d) is connected to a top rod of the second joint arm (15) in a shaft mode, and a front arm driving rod (14b) and a second connecting plate (14c) are connected to the top rod of a first joint arm (16) in a shaft mode.

3. The fast-assembling tower crane with the cross arm hydraulic folding mechanism is characterized by comprising a tower body (11), wherein the top of the tower body (11) is connected with a second knuckle arm (15) through a cross arm pin shaft (12), and the bottom of the tower body (11) is nested in a tower body outer sleeve (10).

4. The quick-assembly tower crane with the cross arm hydraulic folding mechanism as claimed in claim 1, characterized by comprising a rotary platform (3), wherein a folding arm winch is arranged on the rotary platform (3), and controls a first steel wire rope which is fixed to the second knuckle arm (15) after passing around a top pulley.

5. The quick-assembly tower crane with the cross arm hydraulic folding mechanism as claimed in claim 1, wherein the folding arm hydraulic cylinder is controlled by a hydraulic system.

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