CN205114939U - Lift stabilising arrangement based on scissors fork subassembly - Google Patents

Abstract

The utility model relates to a lift stabilising arrangement based on scissors fork subassembly, include: the crane is including parallel arrangement's last frame and underframe to and connect and go up frame and underframe and be used for control to go up the elevating system that the frame goes up and down, still include: scissors fork subassembly, its both sides respectively with last frame and frame attach down for it makes upward frame and underframe keeping parallelism to go up frame lift in -process. Compared with the prior art, the utility model discloses a stability of lift process is realized to scissors fork subassembly, and compact structure has greatly saved occupation space, the installation of being convenient for simultaneously, and it is convenient to adjust.

Description

A lifting and stabilizing device based on scissors and forks

technical field

The utility model relates to a lifting and stabilizing mechanism, in particular to a lifting and stabilizing device based on a scissor-fork assembly.

Background technique

The existing lifting and stabilizing mechanism is mainly realized by using guide wheels to cooperate with guide columns. For example, Chinese patent CN202773114U discloses a guide wheel mechanism for lifting and lowering electric furnace columns. It is provided with guide wheels in contact with guide rails. On the wheel shaft, the support and the base are fixed, and the support is provided with a guide wheel support pressing plate, which is arranged on the support by bolts, wherein a push rod is arranged between the guide wheel support pressing plate and the guide wheel shaft. The guide wheel mechanism is bulky in shape and takes up a lot of space.

Utility model content

The purpose of this utility model is to provide a lifting and stabilizing device based on a scissor-fork assembly in order to overcome the above-mentioned defects in the prior art.

The purpose of this utility model can be achieved through the following technical solutions:

A lifting and stabilizing device based on a scissor-fork assembly, comprising:

Lifting frame, including an upper frame and a lower frame arranged in parallel, and a lifting mechanism connecting the upper frame and the lower frame and used to control the lifting of the upper frame;

Also includes:

The two sides of the scissor-fork assembly are respectively connected with the upper frame and the lower frame, and are used to keep the upper frame and the lower frame parallel during the lifting process of the upper frame.

The upper frame and the lower frame are respectively provided with two rotating shafts arranged in parallel, and the four rotating shafts are respectively fixedly connected with the four legs of the scissor-fork assembly.

The two ends of the rotating shaft are provided with helical gears, and the helical gears mesh with the helical gears on the other rotating shaft of the frame on the same side, so as to realize the synchronous rotation of the two rotating shafts.

The lifting and stabilizing device also includes a plurality of tensioning sleeves for adjusting the installation position of the helical gear, and the helical gear is sleeved on the rotating shaft through tensioning;

By adjusting the installation position of the helical gear, the compensation for the machining error of the center distance of the helical gear is realized.

The lifting mechanism includes a driving motor, a transmission shaft, two pulleys and at least two belts, the two pulleys are all arranged on the transmission shaft, and are connected with the driving motor through the transmission shaft, and the two ends of the belt are wound around on the pulley and connect with the lower frame.

The two ends of the belt are reversely wound on the pulley.

Compared with the prior art, the utility model has the following advantages:

1) The scissor fork assembly is used to realize the stability of the lifting process, and the structure is compact, which greatly saves the occupied space, and is convenient for installation and adjustment.

2) Four pairs of meshing helical gears make the scissor fork rotate at the same angle, so that when the mechanism moves up and down, the scissor fork assembly keeps the upper frame and the lower frame parallel, realizing the role of guiding and stabilizing the mechanism.

3) It is not sensitive to the processing error of the helical gear, which reduces the manufacturing cost.

4) The two belts are wound around the pulleys in opposite directions, so that one pulley can drive the synchronous elongation and shortening of the two belts, reducing the cost.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the front structural schematic diagram of the utility model;

Among them: 1. Scissor fork assembly, 2. Helical gear, 3. Upper frame, 4. Lower frame, 5. Bearing seat, 6. Rotating shaft, 7. Tensioner sleeve, 11. Leg, 31. Driving motor, 32. Transmission Axle, 33, belt pulley, 331, belt.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the utility model, and the detailed implementation and specific operation process are given, but the protection scope of the utility model is not limited to the following examples.

A lifting and stabilizing device based on a scissor-fork assembly, as shown in Figure 1, comprising:

Lifting frame, including upper frame 3 and lower frame 4 arranged in parallel, and a lifting mechanism that connects upper frame 3 and lower frame 4 and is used to control upper frame 3 lifting;

Also includes:

The scissors and fork assembly 1 is connected to the upper frame 3 and the lower frame 4 on both sides respectively, and is used to keep the upper frame 3 and the lower frame 4 parallel during the lifting process of the upper frame 3 .

Both the upper frame 3 and the lower frame 4 are respectively provided with two rotating shafts 6 arranged in parallel, and the four rotating shafts 6 are respectively fixedly connected with the four legs 11 of the scissor-fork assembly 1. Specifically, the scissor-fork assembly 1 and the rotating shaft 6 are connected by bolts Fixed, installed on the bearing block 5 on the upper frame and the lower frame.

As shown in Figures 1 and 2, a helical gear 2 is provided at both ends of the rotating shaft 6, and the helical gear 2 meshes with the helical gear 2 on the other rotating shaft 6 of the frame on the same side to realize the synchronous rotation of the two rotating shafts.

The lifting and stabilizing device also includes a plurality of tensioning sleeves 7 for adjusting the installation position of the helical gear 2, and the helical gear 2 is arranged on the rotating shaft 6 through the tensioning sleeve 7; by adjusting the installation position of the helical gear 2, the center of the helical gear 2 is realized Compensation for the processing error of distance.

Lifting mechanism comprises drive motor 31, drive shaft 32, two pulleys 33 and at least two belts 331, and two pulleys 33 are all located on the drive shaft 32, and are connected with drive motor 31 by drive shaft 32, the two ends of belt 331 Reversely wound on the pulley 33, and connected with the lower frame 4, specifically, as shown in Figure 1, after the belt 331 passes through the lower frame 4, the two ends are reversely wound on the pulley 33, and the two belts 331 are respectively wound Set on two pulleys 33.

When the driving motor 31 drives the two pulleys 33 to rotate through the transmission shaft 32, and then drives the belt 331 to shorten or extend, when the belt 331 is elongated, the upper frame 3 is lifted by the spring in the scissors and fork assembly 1, and when the belt 331 shortens When the belt 331 of the upper frame 3 acts and descends, when moving up and down, the scissor-fork assembly 1 keeps the upper frame 3 and the lower frame 4 parallel, and the four pairs of meshing helical gears 2 make the scissor-fork assembly 1 rotate at the same angle, never making it up and down The relative positions of the frame hanging belts 331 are exactly the same, realizing the effect of guiding and stabilizing mechanism.

Claims (4)

1. A lifting and stabilizing device based on a scissor-fork assembly, comprising: The lifting frame includes an upper frame (3) and a lower frame (4) arranged in parallel, and a lifting mechanism that connects the upper frame (3) and the lower frame (4) and is used to control the lifting of the upper frame (3), It is characterized in that it also includes: The scissors and fork assembly (1), the two sides of which are respectively connected with the upper frame (3) and the lower frame (4); The upper frame (3) and the lower frame (4) are respectively provided with two rotating shafts (6) arranged in parallel, and the four rotating shafts (6) are fixed to the four legs (11) of the scissor fork assembly (1) respectively. connect; The two ends of the rotating shaft (6) are provided with helical gears (2), and the helical gears (2) mesh with the helical gears (2) on the other rotating shaft (6) of the frame on the same side. 2. A lifting and stabilizing device based on a scissor-fork assembly according to claim 1, characterized in that, the lifting and stabilizing device also includes a plurality of tensioning sleeves (7) for adjusting the installation position of the helical gear (2) , the helical gear (2) is arranged on the rotating shaft (6) through a tensioning sleeve (7). 3. A kind of lifting and stabilizing device based on scissors fork assembly according to claim 1, is characterized in that, described lifting mechanism comprises drive motor (31), transmission shaft (32), two belt pulleys (33) and two belt (331), the two pulleys (33) are all arranged on the transmission shaft (32), and are connected with the drive motor (31) through the transmission shaft (32), and the two ends of the belt (331) are wound around On the pulley (33), and connected with the lower frame (4). 4. A lifting and stabilizing device based on a scissor-fork assembly according to claim 3, characterized in that, the two ends of the belt (331) are reversely wound on the pulley (33).