CN110790134A - Static force-bearing type electric hoist hoisting trolley - Google Patents

Abstract

The invention discloses a statically determinate stress type electric hoist crane trolley which comprises frame devices which are arranged on the left side and the right side in a split mode, wherein the frame devices can run on a steel rail, wheels are arranged on the frame devices, connecting beams are arranged between the frame devices, and electric hoists are arranged on the connecting beams; the frame device comprises a rigid connection beam frame on one side and a hinged beam frame on the other side, the rigid connection beam frame is fixedly connected with the connecting beam, and the hinged beam frame is connected with the connecting beam through a hinge pin; a safety bolt is further arranged between the hinged cross beam frame and the connecting beam, and a damping block is sleeved on the safety bolt; the problems of uneven wheel pressure, landing at three points and high requirement on the manufacturing precision of the crane trolley are solved, the vibration can be reduced better, the mechanical noise is reduced, and the safety and the reliability of the crane trolley can be ensured.

Description

Static determinate force type electric hoist lifting trolley

technical field

The invention relates to the technical field of cranes, in particular to a statically indeterminate force-bearing electric hoist hoisting trolley.

Background technique

Electric hoist trolleys are widely used in industrial production cranes, such as double-girder cranes, which are particularly widely used. For double-girder cranes, the hoisting trolley is generally welded into a rigid frame by two end beams, multiple beams and many small rib plates, with at least four wheels, but because it is a non-statically indeterminate force structure, in practice It was found that once the geometric accuracy of the bridge frame, rail installation, trolley frame, and wheel installation did not meet the requirements, and the four wheels were not in the right position (for example, a wheel was too high), uneven wheel pressure and three-point landing would occur. And other problems, the lifting trolley will become unstable. Someone designed a three-pivot electric hoist trolley with a purely statically indeterminate force, which solved the problem of uneven wheel pressure, but the safety is not good enough, and the requirements for the structure of vibration and noise reduction are higher, and the product is transported and transported. Damage can easily occur.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the present invention provides a statically indeterminate force type electric hoist hoisting trolley.

The technical scheme adopted by the present invention to solve its technical problems is:

A statically indeterminate force type electric hoist hoisting trolley comprises frame devices arranged on left and right sides, the frame devices can run on steel rails, wheels are arranged on the frame devices, and the frame A connecting beam is arranged between the devices, and an electric hoist is arranged on the connecting beam;

The frame device includes a rigid-connected cross-beam frame on one side and a hinged cross-beam frame on the other side, the rigid-connected cross-beam frame and the connecting beam are fixedly connected, and the hinged cross-beam frame and the connecting beam are fixedly connected. connected by hinge pins;

Safety bolts are also arranged between the hinged beam frame and the connecting beam, and damping blocks are sleeved on the safety bolts.

As a preferred option, a horizontal mounting plate is provided at the upper position of the connecting beam corresponding to the frame of the hinged beam, the safety bolts are threaded through the horizontal mounting plate and connected to the frame of the hinged beam, and the damping block is located on the horizontal mounting plate and the hinged beam frame.

As a preferred option, vertical mounting plates are provided on the left and right sides of the connecting beam corresponding to the frame of the hinged beam, and the hinge pins pass through the vertical mounting plate and are connected to the frame of the hinged beam.

As a preferred option, a card plate is installed on the vertical mounting plate, a positioning groove is formed on the hinge pin, and the card plate can be inserted into the positioning groove.

The beneficial effects of the invention are as follows: the problems of uneven pressure of the hoisting trolley wheel, three-point landing and high requirements on the crane manufacturing precision are solved, vibration and mechanical noise can be better reduced, and the safety of the hoisting trolley can also be guaranteed. reliability.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the perspective view of the present invention;

Figure 2 is a side view of the present invention;

Figure 3 is an exploded view of the structure of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. In order to provide a thorough understanding of the present invention, the following description will refer to some specific details. Rather, the present invention may be practiced without these specific details, that is, those skilled in the art can use the descriptions and representations herein to more effectively describe the nature of their work to others skilled in the art.

Referring to Figures 1 and 2, a statically indeterminate force type electric hoist hoisting trolley includes frame devices arranged on the left and right sides. The frame devices can run on steel rails, and the frame devices are provided with There are wheels 1. A connecting beam 2 is arranged between the frame devices, and an electric hoist 21 is arranged on the connecting beam 2 to form the main frame of the trolley device.

The frame device includes a rigidly connected beam frame 3 on one side and an articulated beam frame 4 on the other side, the rigidly connected beam frame 3 and the connecting beam 2 are fixedly connected, and the hinged beam frame 4 It is connected with the connecting beam 2 by the hinge pin 5, that is, the rigid connection between the rigidly connected beam frame 3 and the connecting beam 2 is no longer active, while the hinge pin 5 can be used between the hinged beam frame 4 and the connecting beam 2. swing.

Referring to FIGS. 2 and 3 , safety bolts 6 are further provided between the hinged beam frame 4 and the connecting beam 2 , and damping blocks 7 are sleeved on the safety bolts 6 . The damping block design makes the 4 positions of the articulated beam frame of the trolley flexible enough to adjust the contact with the rail, which can completely solve the problems of uneven wheel pressure and three-point landing, and improve the stability of the trolley. The damping block 7 retains an appropriate amount of pre-compression, so that the damping block 7 can better absorb the vibration energy of the entire crane trolley and reduce mechanical noise. The safety bolt 6 can improve the safety of the small frame, even if the hinge pin 5 breaks or falls off, the safety bolt 6 can take a protective effect, so as not to cause a major safety accident.

As an optional method, the damping block 7 can be made of rubber or polyurethane materials with good plasticity, good vibration absorption and certain strength. Four safety bolts 6 can be used. Connecting holes are drilled at the four corners to install the safety bolts 6. The axis of the connecting holes is as close as possible to the vertical plane of the hoisting center of the electric hoist 21 to reduce the torque on the connecting beam 2.

When the product is being transported and transported, the four safety bolts 6 can be temporarily evenly tightened, and the hinged beam frame 4 will not shake along the axis of the hinge pin 5 and damage the hoisting trolley.

The connecting beam 2 is provided with a horizontal mounting plate 23 at the upper position corresponding to the hinged beam frame 4, the safety bolt 6 is connected to the hinged beam frame 4 through the horizontal mounting plate 23, and the damping block 7 is located at the horizontal position. Between the mounting plate 23 and the hinged beam frame 4 .

Vertical mounting plates 22 are provided on the left and right sides of the connecting beam 2 corresponding to the hinged beam frame 4 .

The hinge pin 5 is connected to the hinged beam frame 4 through the vertical mounting plate 22 .

The vertical mounting plate 22 is mounted with a clamping plate 8 , and the hinge pin 5 is provided with a positioning groove 51 for fixing the hinge pin 5 .

According to the above-mentioned principles, the present invention can also make appropriate changes and modifications to the above-mentioned embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention.

Claims (4)

1. A statically indeterminate force type electric hoist hoisting trolley includes frame devices arranged on the left and right sides, the frame devices can run on steel rails, and wheels (1) are arranged on the frame devices, so A connecting beam (2) is arranged between the frame devices, and an electric hoist (21) is arranged on the connecting beam (2), and is characterized in that: The frame device comprises a rigid-connected cross-beam frame (3) on one side and an articulated cross-beam frame (4) on the other side, and the rigid-connected cross-beam frame (3) and the connecting beam (2) are fixedly connected , the hinged beam frame (4) and the connecting beam (2) are connected by a hinge pin (5); A safety bolt (6) is also arranged between the hinged beam frame (4) and the connecting beam (2), and a damping block (7) is sleeved on the safety bolt (6). 2. A statically indeterminate force-bearing electric hoist hoisting trolley according to claim 1, characterized in that: a horizontal mounting plate is provided at the upper position of the connecting beam (2) corresponding to the hinged beam frame (4) (23), the safety bolt (6) is threaded on the horizontal mounting plate (21) and connected to the hinged beam frame (4), and the damping block (7) is located on the horizontal mounting plate (21) and the hinged beam frame (4) (4) between. 3. A statically indeterminate force type electric hoist hoisting trolley according to claim 1, characterized in that: the connecting beam (2) is provided with vertical vertical An installation plate (22), the hinge pin (5) is threaded through the vertical installation plate (22) and connected to the hinged beam frame (4). 4. A statically indeterminate force type electric hoist hoisting trolley according to claim 3, characterized in that: a clamping plate (8) is installed on the vertical mounting plate (22), and the hinge pin (5) ) is provided with a positioning slot (51), and the card board (8) can be inserted into the positioning slot (51).

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