CN209835441U - Telescopic single-rail double-suspension lifting appliance - Google Patents

Abstract

The utility model relates to a two slings that hang of telescopic single track. The lifting appliance comprises an upper frame, a lower frame, a supporting hook, two sets of wheel sets and a telescopic support assembly, the lifting appliance adopts the two sets of wheel sets, the two sets of wheel sets sequentially run on the same rail, and compared with a double-rail lifting appliance, the lifting appliance has the advantages that the occupied space of the running rail is small, compared with a single-suspension lifting appliance, the lifting appliance is more stable, and the running is more accurate. The telescopic bracket component is arranged between the upper frame and the lower frame, the stress of each sliding plate is mainly unidirectional tension and compression, and in the aspect of bending resistance, because the sections of tension and compression are intensively arranged at the upper end and the lower end, the same material consumption is used, and the larger bending strength is realized. The upper end of the connecting assembly is connected with the wheel set through the deep groove ball bearing, and a large moving space is formed in the radial direction, so that the deviation of the lifting appliance during operation can be well adjusted, and the operation is stable; the lower end of the thrust cylindrical roller bearing is connected with the upper frame, and the thrust cylindrical roller bearing can bear axial heavy load and dynamic load.

Description

Telescopic single-rail double-suspension lifting appliance

Technical Field

The utility model relates to a hoist especially relates to a telescopic single track hangs hoist doubly.

Background

The lifting appliance stably supports or reliably clamps a workpiece (generally an electric hoist or a pneumatic balance crane) and drives the lifting appliance through a rigging (a steel wire rope or an annular chain) so as to drive the workpiece to ascend, horizontally move and descend to a specified position, and then the transplanting equipment is controlled by operating the lifting appliance simultaneously so that the lifting appliance leaves the workpiece to finish the carrying of the workpiece.

The suspension type lifting appliance is widely applied in automobile manufacturing, and the lifting appliances distributed in a workshop can be roughly divided into two types, namely a single-rail single-suspension type (such as a simple trolley lifting appliance for girder online and a white automobile body offline lifting appliance) and a double-rail double-suspension type (such as a rear frame online lifting appliance and a front automobile body online lifting appliance). It respectively has good and bad, single suspension type simple structure of single track, by the dolly main part, single suspended structure with drive arrangement (electric block), the control part constitutes, its operation is also very simple, can design for semi-automatic the most time, combines personnel's operation to use, and the cooperation production line is used, neither influences the normal beat of production line, again can be fine improve artificial intensity of labour. Simple and easy single track list suspension type hoist, it is driven by electric block in transportation process, along rail motion, because it only hangs in a department, at the operation in-process, the part of carrying can freely rock, and speed is slower, and the location accuracy is relatively poor.

The double-track double-suspension type hanger comprises double guide rails, a driving motor, a double-suspension structure and a control part. The double-track double-suspension type lifting appliance is mostly in a full-automatic type, and is characterized by stable movement, more accurate operation track and position positioning, and the defects of the double-track double-suspension type lifting appliance are as follows: the double tracks are generally straight tracks, occupy large space, and are often insufficient in space when used in areas with many parts. In the highly integrated region, the part of going on the production line is more simultaneously, and under the limited circumstances in place, stability, the accuracy of part transportation not only need be considered in the design of hoist, will optimize the structure of hoist itself simultaneously, in limited space, accomplish the on-line transport of part.

SUMMERY OF THE UTILITY MODEL

For solving the above problem, the utility model discloses combine single track single suspension type occupation space little, the two stable characteristics of hanging operation of double track, provide a telescopic single track two and hang the hoist, this hoist adopts single track form, and two sets of gyro wheels of front and back hang, compare the double track hoist, and its orbit occupation space is little, compares single hanger, and it is more stable, moves more accurately. .

The utility model adopts the technical proposal that: the utility model provides a two slings that hang of telescopic single track, includes upper portion frame, lower part frame and sets up the support hook in lower part frame bottom four corners, its characterized in that: the bicycle frame also comprises two sets of wheel sets arranged on the upper frame and a telescopic bracket assembly arranged between the upper frame and the lower frame; the two sets of wheel sets sequentially run on the same rail, the telescopic support assembly comprises two sets of supports which are arranged in parallel, the two sets of supports are connected together through a synchronizing plate, each set of supports comprises a plurality of sliding plates, the adjacent sliding plates can slide relatively, the uppermost sliding plate is fixedly connected with the upper frame, and the lowermost sliding plate is fixedly connected with the lower frame.

Preferably, each set of wheel set is fixedly connected with the upper frame through a connecting assembly.

Furthermore, each set of wheel set all includes wheel installation piece and sets up two sets of double wheels at wheel mounting panel both ends, every group double wheels all are equipped with four wheels.

Furthermore, coupling assembling includes first connecting rod, second connecting rod and third connecting rod, first connecting rod upper end is fixed with the wheel installation piece, and the lower extreme is connected with second connecting rod upper end through deep groove ball bearing, second connecting rod lower extreme is connected with the third connecting rod through thrust cylindrical roller bearing, the third connecting rod passes through fixed plate and upper portion frame fixed connection.

Furthermore, the wheel and the rail should satisfy the following conditions:

wherein: r, the minimum curvature radius mm of the curve track; d. the working diameter of the wheel is mm; d. The diameter of the wheel rim is mm; B. the distance between the outer wheel rim and the edge of the track is mm in standard operation; C. the maximum distance between the outer wheel rim of the wheel and the inner edge of the track is mm when the wheel bends; K. the gap between the wheel rim and the track is mm; m, track width mm.

The utility model discloses the beneficial effect who gains is: this hoist adopts two sets of wheel groups, and two sets of wheel groups are the order and move on same track, provide two and hang the point, compare the double track hoist, and its orbit occupation space is little, compares and singly hangs the hoist, and it is more stable, and the operation is more accurate, improves the rigid transport part in-process, to the damage of part. A telescopic bracket assembly is arranged between the upper frame and the lower frame, all sliding plates are stressed mainly by unidirectional pulling and pressing, and are arranged in a symmetrical structure, so that the telescopic bracket assembly can adapt to the distribution of bending moment and shearing force in the structure; because the internal tension and compression forces in the horizontal direction realize self balance, the whole structure does not generate horizontal pressure on the support; in terms of bending resistance, because the sections under tension and compression are intensively arranged at the upper end and the lower end, the same material consumption is used for realizing larger bending strength.

The upper end and the lower end of the connecting component are respectively provided with a bearing, wherein the upper end of the connecting component is connected with the wheel set and is provided with a deep groove ball bearing, so that a large moving space is formed in the radial direction, the deviation of the lifting appliance in the operation process can be well adjusted, the operation is stable, and the radial load and the axial load can be borne. The lower end of the thrust cylindrical roller bearing is connected with the upper frame, the thrust cylindrical roller bearing can bear axial heavy load and dynamic load, has high rigidity and bearing capacity, and can meet requirements during conveying of large parts. Satisfy between wheel and the track:under the condition that the distance between the two groups of rollers is certain, the curvature radius of the track cannot be too small, otherwise the problem that the lifting appliance is blocked during operation can occur.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection of a wheel set to an upper subframe;

FIG. 3 is a schematic view of the connection of the wheel set and the connecting assembly;

fig. 4 is a schematic structural view of the connecting assembly.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

The utility model discloses a two slings that hang of telescopic single track, including upper portion frame 1, lower part frame 2, four support hooks 5, two sets of wheel group 3 and telescopic bracket component 4, two sets of wheel group 3 are fixed to be set up on upper portion frame 1, and the order is moved on same track, adopts the single track form, and two sets of gyro wheels in the front and back hang, compares the double track hoist, and its orbit occupation space is little, compares and singly hangs the hoist, and it is more stable, moves more accurately. The four support hooks 5 are respectively arranged at four corners of the bottom of the lower frame 2 and used for supporting parts.

The telescopic bracket component 4 is arranged between the upper frame 1 and the lower frame 2, the telescopic bracket component 4 comprises two sets of parallel brackets which are connected together through a synchronous plate, each set of brackets comprises a plurality of sliding plates, the adjacent sliding plates can slide relatively, the uppermost sliding plate is fixedly connected with the upper frame 1, and the lowermost sliding plate is fixedly connected with the lower frame 2. The telescopic structure is adopted, so that the space can be saved, the stress of each sliding plate is mainly unidirectional pulling and pressing, and the symmetrical structure arrangement is adopted, so that the telescopic structure can adapt to the distribution of bending moment and shearing force in the structure; because the internal tension and compression forces in the horizontal direction realize self balance, the whole structure does not generate horizontal pressure on the upper frame 1 and the lower frame 2; in terms of bending resistance, because the sections under tension and compression are intensively arranged at the upper end and the lower end, the same material consumption is used for realizing larger bending strength.

In this embodiment, each set of wheel set 3 all passes through coupling assembling 6 and upper portion frame 1 fixed connection, and each set of wheel set 3 all includes wheel mounting block 31 and sets up two sets of double-row wheels 32 at wheel mounting panel 31 both ends, and every set of double-row wheels 32 all is equipped with four wheels.

In this embodiment, the connecting assembly 6 includes a first connecting rod 61, a second connecting rod 62 and a third connecting rod 63, the upper end of the first connecting rod 61 is fixed to the wheel mounting block 31, the lower end of the first connecting rod 61 is connected to the upper end of the second connecting rod 62 through a deep groove ball bearing 65, the lower end of the second connecting rod 62 is connected to the third connecting rod 63 through a cylindrical roller thrust bearing 66, and the third connecting rod 63 is fixedly connected to the upper frame 1 through a fixing plate 64. The upper end and the lower end of the connecting component 6 are respectively provided with a bearing, wherein the upper end of the connecting component is connected with the wheel set 3 and is provided with a deep groove ball bearing 65, a large moving space is formed in the radial direction, the deviation of the lifting appliance in the operation process can be well adjusted, the operation is stable, and meanwhile, radial and axial loads can be borne. The lower end of the cylindrical roller thrust bearing 66 is connected with the upper frame 1, can bear axial heavy load and dynamic load, has high rigidity and bearing capacity, and can meet the requirements during conveying of large parts.

The monorail double-suspension lifting appliance has certain requirements on a track during operation, wheels used by a monorail trolley mainly comprise two cylindrical wheels, namely a cylindrical wheel with a single wheel rim and a drum-shaped wheel with a single wheel rim, the two cylindrical wheels are generally suitable for H-shaped I-shaped steel, the drum-shaped wheels are generally used for I-shaped steel, when the monorail trolley operates on an I-shaped steel curved track, a certain gap exists between the wheel rims of the wheels and the I-shaped steel track, and the gap is determined after the left wall plate and the right wall plate are connected and fixed through a hanging beam. The wheel rim of the trolley is equivalent to a double-wheel rim wheel. The radius of the curved track of the transition section to be traversed is limited by the condition of clamping of the wheel rim, and the factors directly influencing the turning radius are the structure of the trolley and the clearance between the wheel rim and the track. Under the condition that the distance between the two groups of rollers is certain, the curvature radius of the track cannot be too small, otherwise the problem that the lifting appliance is blocked during operation can occur.

After the left and right rails of a common monorail hanger trolley are connected and fastened by hanging beams, the whole hanger is equivalent to a trolley body with two pairs of wheels. In the embodiment, the following should be satisfied between the wheel and the rail:

wherein: r, the minimum curvature radius mm of the curve track; d. the working diameter of the wheel is mm; d. The diameter of the wheel rim is mm; B. the distance between the outer wheel rim and the edge of the track is mm in standard operation; C. the maximum distance between the outer wheel rim of the wheel and the inner edge of the track is mm when the wheel bends; K. the gap between the wheel rim and the track is mm; m, track width mm.

Under the condition that the track design of the lifting appliance meets the conditions, the track is properly adjusted in the part highly concentrated area, and the single-track double-suspension lifting appliance can meet the part material conveying requirement.

The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a two slings that hang of telescopic single track, includes upper portion frame, lower part frame and sets up the support hook in lower part frame bottom four corners, its characterized in that: the bicycle frame also comprises two sets of wheel sets arranged on the upper frame and a telescopic bracket assembly arranged between the upper frame and the lower frame; the two sets of wheel sets sequentially run on the same rail, the telescopic support assembly comprises two sets of supports which are arranged in parallel, the two sets of supports are connected together through a synchronizing plate, each set of supports comprises a plurality of sliding plates, the adjacent sliding plates can slide relatively, the uppermost sliding plate is fixedly connected with the upper frame, and the lowermost sliding plate is fixedly connected with the lower frame.

2. The telescopic monorail double-suspension spreader of claim 1, characterized in that: each set of wheel set is fixedly connected with the upper portion framework through a connecting assembly.

3. The telescopic monorail double-suspension spreader of claim 2, characterized in that: each set of wheel group all includes wheel installation piece and sets up two sets of double wheels at wheel mounting panel both ends, every group double wheel all is equipped with four wheels.

4. The telescopic monorail double-suspension spreader of claim 3, characterized in that: coupling assembling includes first connecting rod, second connecting rod and third connecting rod, first connecting rod upper end is fixed with the wheel installation piece, and the lower extreme passes through deep groove ball bearing to be connected with second connecting rod upper end, the second connecting rod lower extreme passes through thrust cylindrical roller bearing to be connected with the third connecting rod, the third connecting rod passes through fixed plate and upper portion frame fixed connection.

5. The telescopic monorail double-suspension lifting appliance according to any one of claims 1-4, characterized in that: the wheel and the rail should meet the following conditions:

wherein: r, the minimum curvature radius mm of the curve track; d. the working diameter of the wheel is mm; D. the diameter of the wheel rim is mm; B. the distance between the outer wheel rim and the edge of the track is mm in standard operation; C. the maximum distance between the outer wheel rim of the wheel and the inner edge of the track is mm when the wheel bends; K. the gap between the wheel rim and the track is mm; m, track width mm.