CN218290177U - Tow-cable pulley travelling wheel structure - Google Patents

Abstract

The utility model relates to a tow cable pulley traveling wheel structure, which comprises a traveling wheel, a wheel shaft and a supporting plate; the travelling wheel is provided with a wheel axle hole, one end of a wheel axle penetrates into the wheel axle hole of the travelling wheel, the wheel axle is rotatably connected with the wheel axle hole through a bearing, and a shaft end retainer ring is arranged on the wheel axle at the outer end of the bearing; the supporting plate is arranged on the outer side of the travelling wheel, the upper part of the supporting plate is provided with a shaft hole, and the other end of the wheel shaft penetrates out of the shaft hole; an internal thread hole is formed in one end, close to the supporting plate, of the wheel shaft, a gasket and a bolt are arranged on the outer side of the supporting plate, and the wheel shaft and the supporting plate are locked and fixed through the matching connection of the bolt and the internal thread hole. Compared with the conventional structure, the travelling wheel is more convenient to mount and dismount, and the towing pulley is more reliable in operation.

Description

Tow-cable pulley travelling wheel structure

Technical Field

The utility model relates to a tow-cable pulley especially relates to a tow-cable pulley travelling wheel structure.

Background

The towing pulley is a conductive device for supplying power to the crane trolley, and consists of travelling wheels, a pulley wheel frame, a supporting plate and the like.

In some production occasions (such as steel plants), the travelling wheels of the towing trolley are often damaged and need to be replaced in time due to the fact that the hoisting capacity of the crane is large, the operation rate is high, and the number of the flexible cables is relatively large and heavy.

Travelling wheels of the towing pulley are arranged on a pulley frame, the travelling wheels are arranged on a wheel shaft, and the outer end of the wheel shaft penetrates through supporting plates on two sides of the pulley frame and then is matched, locked and fixed through external threads and nuts. The mounting structure is fastened by nuts, the axle is longer (generally more than 100 mm), and the distance between a pair of travelling wheels is shorter, so that the supporting plate on the carriage wheel frame needs to be detached each time when the travelling wheels are replaced, which wastes time and labor.

The Chinese utility model patent with the granted publication number of CN 205045716U discloses a quick-change cable supporting pulley, which comprises a bearing auxiliary plate with a circular through hole along the thickness direction, wherein the bearing auxiliary plate is fixed on the outer side surface of the bearing plate through a bolt; the upper edge of the bearing plate is provided with a U-shaped groove which is communicated along the thickness direction of the bearing plate, the opening of the U-shaped groove is positioned on the upper edge of the bearing plate, and the pulley wheel shaft passes through the U-shaped groove of the bearing plate and the circular through hole of the bearing auxiliary plate and is fixed on the outer side surface of the bearing auxiliary plate through a nut. The pulley wheel can be easily taken down only by dismounting the bearing auxiliary plate, so that the replacement of the pulley wheel is time-saving and labor-saving. Although above-mentioned technical scheme can realize the quick replacement of sliding wheel (travelling wheel), nevertheless need increase the bearing subplate, not only the structure is complicated, has additionally increased not a few weight moreover.

There are additional problems with the tow trolley running wheel mounting location: if the through hole that backup pad and shaft are connected is the round hole generally, can not realize effective location between shaft and the backup pad, when the nut of fastening shaft outer end, the shaft often synchronous rotation. For another example, because the flexible cable borne by the tackle is heavy, the supporting plate is often bent and deformed, so that positioning failure is caused, the travelling wheel moves and even falls off the way, and the normal operation of the crane is seriously influenced.

Disclosure of Invention

The utility model provides a tow-cable pulley travelling wheel structure improves the connected mode of shaft and pulley frame upper support plate, compares with conventional structure, and the installation of travelling wheel, dismantlement are more convenient, and the operation of tow-cable pulley is more reliable.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a tow cable pulley travelling wheel structure comprises travelling wheels, a wheel shaft and a support plate; the travelling wheel is provided with a wheel axle hole, one end of a wheel axle penetrates into the wheel axle hole of the travelling wheel, the wheel axle is rotationally connected with the wheel axle hole through a bearing, and a wheel axle end check ring is arranged on the wheel axle at the outer end of the bearing; the supporting plate is arranged on the outer side of the travelling wheel, the upper part of the supporting plate is provided with a shaft hole, and the other end of the wheel shaft penetrates out of the shaft hole; an internal thread hole is formed in one end, close to the supporting plate, of the wheel shaft, a gasket and a bolt are arranged on the outer side of the supporting plate, and the wheel shaft and the supporting plate are locked and fixed through the matching connection of the bolt and the internal thread hole.

The shaft end of the wheel shaft connected with the support plate is provided with a connecting shaft, the diameter of the connecting shaft is smaller than that of the wheel shaft body, and the connecting shaft is provided with a milling flat structure with planes on two sides; the shaft hole on the supporting plate has the shape and the size matched with the connecting shaft.

And reinforcing ribs are arranged in the middle of the outer side of the supporting plate along the height direction.

The supporting plate and the reinforcing ribs are of an integrally formed structure.

The length of the wheel shaft is less than or equal to 65mm.

Compared with the prior art, the beneficial effects of the utility model are that:

1) The wheel shaft is connected with the support plate through the inner threaded hole and the bolt, so that the length of the wheel shaft is effectively shortened, and the replacement of the travelling wheel can be completed without disassembling the support plate;

2) The shaft end of the wheel shaft connected with the support plate is provided with a milling flat structure, so that the positioning effect can be achieved, and the wheel shaft is prevented from rotating along with the locking bolt;

3) The strengthening rib is established at the middle part of backup pad, effectively improves the bulk strength of backup pad, prevents it because of atress bending deformation, guarantees the reliable operation of tow-cable coaster.

Drawings

Fig. 1 is a schematic structural view of a travelling wheel of a towing pulley of the present invention.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a front view of the support plate of the present invention.

Figure 4a is a front view of the wheel axle of the present invention.

Fig. 4b is a left side view of fig. 4 a.

In the figure: 1. travelling wheel 2, wheel shaft 21, connecting shaft 3, support plate 31, shaft hole 32, reinforcing rib 4, bearing 5, shaft end retainer 6, washer 7, bolt 8, pulley wheel frame 9, carriage 10, connecting shaft 11 and track

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in fig. 1 and fig. 2, the travelling wheel structure of the towing trolley of the present invention comprises a travelling wheel 1, a wheel shaft 2 and a support plate 3; the travelling wheel 1 is provided with a wheel axle hole, one end of a wheel axle 2 penetrates into the wheel axle hole of the travelling wheel 1, the wheel axle 2 is rotatably connected with the wheel axle hole through a bearing 4, and a shaft end retainer ring 5 is arranged on the wheel axle 2 at the outer end of the bearing 4; the supporting plate 3 is arranged on the outer side of the travelling wheel 1, the upper part of the supporting plate 3 is provided with a shaft hole 31, and the other end of the wheel shaft 2 penetrates out of the shaft hole 31; the internal thread hole is established to the one end that shaft 2 is close to backup pad 3, and packing ring 6 and bolt 7 are established in the outside of backup pad 3, and it is fixed to be connected the locking that realizes between shaft 2 and the backup pad 3 through bolt 7 and internal thread hole cooperation.

As shown in fig. 3, 4a and 4b, a connecting shaft 21 is arranged at the shaft end of the wheel axle 2 connected with the support plate 3, the diameter of the connecting shaft 21 is smaller than that of the wheel axle body, and the connecting shaft 21 has a milling flat structure with two flat sides; the shaft hole 31 of the support plate 3 has a shape and size that fit the spindle 21.

As shown in fig. 3, the outer middle portion of the support plate 3 is provided with a reinforcing rib 32 along the height direction.

The supporting plate 3 and the reinforcing ribs 32 are of an integrated structure.

The length of the wheel shaft 2 is less than or equal to 65mm.

The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation processes are given, but the scope of the present invention is not limited to the following examples.

[ examples ] A method for producing a compound

In the embodiment, the towing trolley is provided with a plurality of pairs of running wheels 1, and each pair of running wheels 1 are oppositely arranged at two sides of a track 11 and connected with the same trolley wheel frame 8; the travelling wheel 1 is arranged on the wheel shaft 2, and the travelling wheel 1 is rotationally connected with the wheel shaft 2 through a bearing 4; the two sides of the pulley frame 8 are symmetrically provided with the supporting plates 3, the supporting plates 3 on the two sides are connected through a plurality of connecting shafts 10, the outside of the connecting shaft 10 between the 2 supporting plates 3 is provided with a positioning shaft sleeve, and the two ends of the connecting shaft 10 penetrate through the supporting plates 3 and are locked and fixed through nuts; the wheel shaft 2 is arranged on the supporting plate 3 at the corresponding side of the pulley frame 8, the bottom of the pulley frame 8 is connected with the carriage 9, and the carriage 9 is used for bearing a flexible cable.

This embodiment improves the travelling wheel 1, shaft 2 and the 3 structures of backup pad of towing rope coaster, solves the problem that 3 atress back easily bent and warp of backup pad to realize quick replacement travelling wheel 1, reduce the influence to production. The concrete measures are as follows:

1. the length of the wheel shaft 2 is shortened from the original 100mm to 65mm, and the connection mode of the wheel shaft 2 and the support plate 3 is changed from 'external threads + nuts' to 'internal threads + bolts'. Two planes are symmetrically milled on the left side and the right side of the connecting shaft 21 of the wheel shaft 2 and are used for positioning and fixing two side surfaces corresponding to the shaft hole 31 on the supporting plate 3. When the travelling wheel 1 is replaced, the travelling wheel 1 can be directly installed in place without detaching the supporting plates 3 on the two sides of the pulley frame 8, and the outside of the travelling wheel is fixed through the bolts 7, so that time and labor are saved.

2. The shaft hole 31 matched with the wheel shaft 2 on the supporting plate 3 is changed from an original round hole into a long round hole with straight edges at two sides, and the wheel shaft 2 is prevented from rotating along with the round hole when being fastened by the bolt 7 through plane positioning at two sides.

3. The middle part of the supporting plate 3 is additionally provided with the reinforcing rib 32, so that the overall strength of the supporting plate 3 is improved, and the influence of bending deformation of the supporting plate 3 after stress on the operation safety of the towing cable pulley is prevented. In this embodiment, the main body of the support plate 3 and the reinforcing ribs 32 are integrally formed by forging.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.

Claims (5)

1. A tow cable pulley travelling wheel structure comprises travelling wheels, a wheel shaft and a support plate; the travelling wheel is characterized in that the travelling wheel is provided with a wheel axle hole, one end of a wheel axle penetrates into the wheel axle hole of the travelling wheel, the wheel axle is rotatably connected with the wheel axle hole through a bearing, and a shaft end retainer ring is arranged on the wheel axle at the outer end of the bearing; the supporting plate is arranged on the outer side of the travelling wheel, the upper part of the supporting plate is provided with a shaft hole, and the other end of the wheel shaft penetrates out of the shaft hole; the internal thread hole is established to the one end that the shaft is close to the backup pad, and packing ring and bolt are established in the outside of backup pad, and it is fixed to be connected the locking that realizes between shaft and the backup pad through bolt and internal thread hole cooperation.

2. The streamer pulley trolley structure as claimed in claim 1, wherein the axle end of the axle connected with the support plate is provided with a connecting axle, the diameter of the connecting axle is smaller than that of the axle body, and the connecting axle has a milling flat structure with two planar sides; the shaft hole on the supporting plate has a shape and a size matched with the connecting shaft.

3. The streamer pulley sheave structure of claim 1, wherein the outer middle portion of the support plate is provided with a reinforcing rib in the height direction.

4. A streamer trolley wheel assembly as claimed in claim 3, wherein the support plate is of integral construction with the reinforcing bars.

5. A streamer trolley wheel assembly as claimed in claim 1, wherein the axle is less than or equal to 65mm in length.

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