CN103343800A - Speed reducer structure of lifting type platform lifting system - Google Patents

Abstract

The invention discloses a deceleration device structure of a lifting platform lifting system, which includes a pile box and a deceleration device. The deceleration device includes a helical gear reducer and a planetary gear reducer. The input shaft of the helical gear reducer is connected to a motor. The output shaft of the helical gear reducer is connected to the planetary gear reducer, and the whole composed of the motor, the helical gear reducer and the planetary gear reducer is U-shaped and arranged on the side of the pile box . This kind of deceleration device has reasonable and compact structure, light weight, stable operation, effectively utilizes the pile box space, reduces the weight of the platform, and can meet the use requirements of the lifting system.

Description

A deceleration device structure of an elevating platform elevating system

technical field

The invention relates to a lifting system of a lifting platform, in particular to a structure of a deceleration device of the lifting system of a lifting platform.

Background technique

The lifting platform is a mobile offshore engineering platform used for offshore energy exploitation and exploration. Its main components are the working platform, the legs supporting the platform, the lifting system that controls the lifting of the working platform and the locking system after the working platform is positioned. . The lifting system is mainly composed of motor, reduction device, lifting gear shaft assembly and so on.

The deceleration device of the lifting system is required to achieve a large deceleration ratio and output a large torque, and its internal structure must have a certain bearing capacity to meet the strength requirements. However, its design and manufacture are limited by conditions such as platform weight and space. The smaller and lighter the reduction gear is, the better, but the load-bearing capacity is very large. Generally speaking, the reduction ratio needs to be about 5000, and the output shaft torque can reach more than 1000000N/m. At present, there is a lack of experience in the design and manufacture of such a heavy-duty large-speed ratio reduction mechanism in China, and the design and manufacture are difficult. How to design the reduction gear reasonably and effectively is a very important issue.

Contents of the invention

The object of the present invention is to provide a structure of a deceleration device for an elevating platform elevating system with reasonable and compact structure, light weight and stable operation in view of the above disadvantages.

In order to realize the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

A deceleration device structure for an elevating platform lifting system, including a pile box and a deceleration device, the deceleration device includes a helical gear reducer and a planetary gear reducer, the input shaft of the helical gear reducer is connected to a motor, and the helical gear The output shaft of the reducer is connected to the planetary gear reducer, and the whole composed of the motor, the helical gear reducer and the planetary gear reducer is U-shaped and arranged on the side of the pile box.

As a preferred embodiment of the present invention, the helical gear reducer adopts a five-parallel-shaft four-stage reduction structure and is connected to the input shaft of the planetary gear reducer through the output shaft after four times of deceleration and torque increase.

As a preferred embodiment of the present invention, the planetary gear reducer adopts a two-stage reduction structure, and each stage of reduction adopts a structure in which three planetary gears are evenly distributed around the sun gear.

As a preferred embodiment of the present invention, a lifting gear and a leg rack are arranged in the pile box, a lifting gear and a leg rack are arranged in the pile box, and the speed reduction device communicates with the lifting gear and the Leg rack connection.

The helical gear reducer and the planetary gear reducer are connected in series. The helical gear reducer is set at the high-speed end, and the planetary gear reducer is set at the low-speed end. The pile box is equipped with a lifting gear and a leg rack. The torque required for the lifting of the platform output by the reduction device is transmitted to the leg rack through the lifting gear. The leg rack is connected to the legs, and the lifting of the legs drives the The platform lifts.

Due to the adoption of the above technical solution, the beneficial effects of the present invention are: the reduction gear has a reasonable and compact structure, light weight, stable operation, effectively utilizes the space of the pile box, reduces the weight of the platform, and can meet the use requirements of the lifting system. the

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Figure 2 is an internal structural diagram of the reduction gear.

Marks in the figure: 1-pile box, 2-motor, 3-reduction device, 4-leg rack, 50-input shaft of planetary gear reducer, 51-first-level planetary reduction, 52-secondary planetary reduction, 60- Helical gear reducer input shaft, 61-first-stage helical gear reduction, 62-two-stage helical gear reduction, 63-three-stage helical gear reduction, 64-four-stage helical gear reduction. the

Detailed ways

The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

Example 1

1 and 2, the present invention includes a pile box 1 and a speed reduction device 3, the speed reduction device 3 includes a helical gear reducer and a planetary gear reducer, the motor 2 is connected to the input shaft 60 of the helical gear reducer, and after a first-stage helical gear reduction 61. Two-stage helical gear reduction 62, three-stage helical gear reduction 63 and four-stage helical gear reduction 64 output the torque to the input shaft 50 of the planetary gear reducer, and the planetary gear reducer passes through the first-stage planetary reduction 51 and the second-stage planetary reduction 52 The torque is transmitted to the leg rack 4 through the lifting gear, and the leg rack 4 is connected to the legs, and the lifting of the legs drives the platform up and down. The lifting gear and the leg rack 4 are arranged in the pile box 1 . The whole composed of the helical gear reducer, the planetary gear reducer and the motor 2 is U-shaped and arranged on the side of the pile box 1 . The helical gear reducer and the planetary gear reducer are connected in series. The helical gear reducer is set at the high-speed end, and the planetary gear reducer is set at the low-speed end. As shown in FIG. 2 , the helical gear reducer adopts a four-stage reduction structure with five parallel shafts, and after four times of deceleration and torque increase, the output shaft is connected to the input shaft 50 of the planetary gear reducer. The planetary gear reducer adopts a two-stage deceleration structure, and each stage of deceleration adopts a structure in which three planetary gears are evenly distributed around the sun gear.

Claims (4)

1. the speed reducer structure of an elevating platform elevating system, comprise a case and speed reducer, it is characterized in that, described speed reducer comprises helical speed reduction gear and planet-gear speed reducer, the input shaft of described helical speed reduction gear connects motor, the output shaft of described helical speed reduction gear connects described planet-gear speed reducer, and the overall U-shaped that described motor, described helical speed reduction gear and described planet-gear speed reducer three form is arranged on the side of described stake case.

2. the speed reducer structure of elevating platform elevating system according to claim 1, it is characterized in that described helical speed reduction gear adopts five parallel axes level Four slowing-down structures to slow down to increase through four times and turns round the back connects described planet-gear speed reducer by output shaft input shaft.

3. the speed reducer structure of elevating platform elevating system according to claim 1 is characterized in that, described planet-gear speed reducer adopts double reduction structure and every grade of deceleration all to adopt three planet wheels to be distributed in sun gear structure all around.

4. according to the speed reducer structure of claim 1,2 or 3 described elevating platform elevating systems, it is characterized in that be provided with lifting gear and spud leg tooth bar in the described stake case, described speed reducer is connected with described spud leg tooth bar by described lifting gear.

Images