CN214527702U

CN214527702U - Crane trolley with buffer device

Info

Publication number: CN214527702U
Application number: CN202023282305.6U
Authority: CN
Inventors: 董彦波; 丁一
Original assignee: Demarco Hoisting Machinery Co Ltd
Current assignee: Demarco Hoisting Machinery Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-29
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to the technical field of crane trolleys, in particular to a crane trolley with a buffer device, which comprises a trolley, wherein the four corners of the trolley are provided with the buffer device, the buffer device comprises a first buffer mechanism and a second buffer mechanism, the first buffer mechanism is a buffer, the second buffer mechanism comprises a hydraulic buffer, the buffer is connected with the hydraulic buffer, the tail part of the hydraulic buffer is provided with a connecting base, the connecting base of the hydraulic buffer is connected with the other two corners of the trolley through a fixing part, a limiting device is arranged below the hydraulic buffer, and the limiting device is connected with the fixing part; the utility model realizes three-level buffering under the coordination of the buffer, the buffer spring, the first hydraulic buffer or the second hydraulic buffer, and has simple structure and good buffering effect; two sets of limiting wheels are arranged, so that the running track of the trolley is limited, and the trolley runs stably; but also avoids the phenomenon of derailment of the trolley caused by impact, and improves the driving safety performance.

Description

Crane trolley with buffer device

Technical Field

The utility model relates to a monkey technical field, concretely relates to monkey with buffer.

Background

The crane is a multi-action crane which can vertically lift and horizontally carry heavy objects within a certain range, the crane trolley runs within the limited range of the cart beam, and the buffer is an essential component for relieving the impact of the crane trolley on the limit stop.

Most of the existing buffers have single structures, limited protection ranges and poor buffering effects; the multi-stage buffer has a complex structure and high cost; moreover, when the trolley moves, the inertia is often large, and the phenomenon of wheel derailment is easy to occur when the trolley is impacted, but the protection degree of the crane trolley at present is not enough; therefore, how to overcome the above technical problems and disadvantages is a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, and provide a simple structure, buffering effect is good, make the dolly operation stable, avoid derailing, improve driving safety's monkey that has buffer.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that: the utility model provides a monkey with buffer, is including setting up the dolly on the track, the four corners of dolly all is provided with buffer, buffer includes first buffer gear and second buffer gear, first buffer gear is the buffer, second buffer gear includes first hydraulic buffer and second hydraulic buffer, the buffer is connected with relative first hydraulic buffer and second hydraulic buffer, the afterbody of first hydraulic buffer and second hydraulic buffer all is provided with connects the base, the connection base of first hydraulic buffer is connected with the both corners of dolly, the connection base of second hydraulic buffer passes through the mounting and is connected with the other both corners of dolly, the below of second hydraulic buffer is provided with stop device, stop device is connected with the mounting.

Furthermore, a threaded rod is arranged at the tail part of the buffer, and inner threads matched with the threaded rod are arranged on the inner sides of the free ends of the piston rods of the first hydraulic buffer and the second hydraulic buffer; the threaded rod is in threaded connection with the internal thread, so that the buffer is fixedly connected with a piston rod of a hydraulic buffer or a second hydraulic buffer, and the double-buffering effect is achieved.

Further, the buffer is a polyurethane buffer, and a buffer bulge is arranged at the head part of the buffer; the buffering bulge enhances the buffering effect and reduces the impact force on the buffer.

Furthermore, the free end of the second hydraulic buffer and the free end of the first hydraulic buffer are positioned on the same horizontal line, so that the buffers are stressed evenly, and the stressed impact force is effectively dispersed.

Furthermore, the free ends of the piston rods of the first hydraulic buffer and the second hydraulic buffer are sleeved with shoulder supports, and the exposed outer parts of the piston rods are sleeved with buffer springs; the shoulder support increases the stress area of the buffer and the piston rod, reduces the stress of the piston rod and prolongs the service life of the piston rod; the buffer spring has the effect of further buffering, and three-level buffering is realized under the cooperation of the first hydraulic buffer or the second hydraulic buffer, so that the structure is simple, and the buffering effect is good.

Further, the first hydraulic buffer is disposed above the same rail, and the second hydraulic buffer is disposed above the other rail.

Furthermore, the fixing piece is formed by welding a first L-shaped plate and a vertical plate, the vertical plate is fixedly connected with two corners of the trolley through a bolt group, and a connecting base of the second hydraulic buffer is fixedly connected with the vertical plate of the first L-shaped plate through the bolt group.

Furthermore, two groups of limiting devices are arranged, each group of limiting devices comprises a connecting piece and two limiting wheels matched with the track for use, the limiting wheels are connected with rotating shafts, and the rotating shafts are connected with the tops of the opposite connecting pieces; the arrangement of the limiting wheels avoids the phenomenon that the trolley is derailed due to impact, and improves the driving safety performance.

Furthermore, the connecting piece is a second L-shaped plate, and a vertical plate of the second L-shaped plate is fixedly connected with a vertical plate of the first L-shaped plate through a bolt group; thereby fixing the limiting device and enabling the limiting device to operate stably.

The utility model discloses a monkey's beneficial effect with buffer:

1. the utility model discloses a four corners of monkey with buffer all is provided with buffer, under buffer, buffer spring, first hydraulic buffer or second hydraulic buffer's cooperation, realizes tertiary buffering, simple structure, buffering effectual.

2. The utility model discloses a monkey with buffer is provided with stop device in the below of second hydraulic buffer, and stop device is spacing through setting up spacing wheel in the track both sides, carries on spacingly to the dolly orbit, makes its steady operation.

3. The utility model discloses a monkey with buffer has avoided the dolly to receive the striking emergence derailment phenomenon through setting up two sets of spacing wheels, has improved driving safety performance.

Drawings

FIG. 1 is a schematic front view of a crane trolley with a buffer device according to the present invention;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic structural view of a buffer of the crane trolley with a buffering device according to the present invention;

FIG. 4 is a schematic structural view of a second hydraulic buffer in the trolley with a buffering device according to the present invention;

wherein: 1-trolley, 21-buffer, 22-buffer bulge, 23-threaded rod, 31-first hydraulic buffer, 32-second hydraulic buffer, 33-buffer spring, 34-piston rod, 35-shoulder support, 36-connecting base, 37-internal thread, 41-limiting wheel, 42-connecting piece, 43-rotating shaft and 5-fixing piece.

Detailed Description

The crane trolley with the buffer device according to the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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

As shown in fig. 1-4, the crane trolley with the buffer device realizes three-level buffering, has a simple structure and a good buffering effect under the coordination of the buffer, the buffer spring and the first hydraulic buffer or the second hydraulic buffer; the two sets of limiting wheels are arranged, so that the running track of the trolley is limited, the trolley can run stably, the phenomenon of derailment of the trolley caused by impact is avoided, and the driving safety performance is improved. The trolley comprises a trolley 1 arranged on a track, and four corners of the trolley 1 are provided with buffer devices. The buffer device comprises a first buffer mechanism and a second buffer mechanism. The first buffer mechanism is a buffer 21, the buffer 21 is a polyurethane buffer, and the head part of the buffer 21 is provided with a buffer bulge 22; the buffer protrusions 22 enhance the buffering effect and reduce the impact force to the buffer 21. The rear part of the buffer 21 is provided with a threaded rod 23. The second buffer mechanism comprises a first hydraulic buffer 31 and a second hydraulic buffer 32, and inner threads 37 matched with the threaded rod 23 are arranged on the inner sides of the free ends of piston rods 34 of the first hydraulic buffer 31 and the second hydraulic buffer 32; the threaded rod 23 is screwed into the female thread 37, so that the damper 21 is fixedly connected to the piston rod 34 of the first hydraulic damper 31 or the second hydraulic damper 32, thereby performing a double damping function. The free ends of the piston rods 34 of the first hydraulic buffer 31 and the second hydraulic buffer 32 are respectively sleeved with a shoulder support 35, and the shoulder supports 35 increase the stress areas of the buffers 21 and the piston rods 34, reduce the stress of the piston rods 34 and prolong the service life of the piston rods 34. The buffer spring 33 is sleeved outside the exposed piston rod 34, the buffer spring 33 plays a further buffering effect, three-level buffering is realized under the cooperation of the buffer 21, the first hydraulic buffer 31 or the second hydraulic buffer 32, and the buffer structure is simple and has a good buffering effect.

As shown in fig. 1 to 4, the first hydraulic buffer 31 and the second hydraulic buffer 32 are provided at the rear thereof with a connection base 36, and four corners of the connection base 36 are provided with bolt holes. The first hydraulic buffer 31 is provided with two, and the connecting base 36 of the first hydraulic buffer 31 is connected with two corners of the trolley 1 through bolt groups and is arranged above the same rail. Two second hydraulic buffers 32 are arranged, the connecting base 36 of the second hydraulic buffer 32 is connected with the other two corners of the trolley 1 through the fixing piece 5, and the second hydraulic buffer 32 is arranged above the other rail. In the initial position, the free end of the second hydraulic shock absorber 32 and the free end of the first hydraulic shock absorber 31 are located on the same horizontal line, so that the shock absorber 21 is evenly stressed, and the applied impact force is effectively dispersed. The fixing piece 5 is formed by welding a first L-shaped plate and a vertical plate, the vertical plate is fixedly connected with two corners of the trolley 1 through a bolt group, and a connecting base 36 of the second hydraulic buffer 32 is fixedly connected with the vertical plate of the first L-shaped plate through the bolt group. The lower part of the second hydraulic buffer 32 is provided with two sets of limiting devices, each set of limiting device comprises a connecting piece 42 and two limiting wheels 41, the two limiting wheels 41 are respectively arranged on two sides of the track, and the arrangement of the limiting wheels 41 limits the running track of the trolley 1 to ensure the trolley to run stably. The connecting piece 42 is a second L-shaped plate, and a vertical plate of the second L-shaped plate is fixedly connected with a vertical plate of the first L-shaped plate through a bolt group; thereby fixing the limiting device and enabling the limiting device to stably operate. Round holes are formed in the transverse plate of the second L-shaped plate, and bearings are arranged in the round holes. The limiting wheels 41 are connected with rotating shafts 43, the upper ends of the rotating shafts 43 penetrate through bearings arranged at the tops of the transverse plates of the second L-shaped plates, and limiting rings are arranged at the end parts of the rotating shafts 43, so that the rotating shafts 43 can rotate in the bearings continuously without falling off the bearings; the two sets of limiting wheels 41 are arranged, so that the phenomenon of derailment of the trolley 1 caused by impact is avoided, and the driving safety performance is improved.

The utility model discloses an installation method does: the limiting wheel is connected with the rotating shaft, and then the rotating shaft is connected with the top of the connecting piece. Then, fixing pieces are respectively installed at two ends of one side of the trolley, and the connecting base and the connecting piece of the second hydraulic buffer are in threaded connection with the fixing pieces. And connecting the connecting base of the first hydraulic buffer with two ends of the other side of the trolley through threads. And finally, connecting the threaded rod of the buffer with the internal threads on the inner sides of the piston rods of the first hydraulic buffer and the second hydraulic buffer in a threaded manner, namely completing the installation process.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but include electrical connections, whether direct or indirect.

The exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the specific embodiments without departing from the scope of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention.

Claims

1. The utility model provides a monkey with buffer, is including setting up the dolly on the track, the four corners of dolly all is provided with buffer, buffer includes first buffer gear and second buffer gear, first buffer gear is buffer, its characterized in that: the second buffer mechanism comprises a first hydraulic buffer and a second hydraulic buffer, the buffers are connected with the first hydraulic buffer and the second hydraulic buffer which are opposite, the tail parts of the first hydraulic buffer and the second hydraulic buffer are respectively provided with a connecting base, the connecting base of the first hydraulic buffer is connected with two corners of the trolley, the connecting base of the second hydraulic buffer is connected with the other two corners of the trolley through a fixing piece, a limiting device is arranged below the second hydraulic buffer, and the limiting device is connected with the fixing piece.

2. The crane trolley with the buffer device as claimed in claim 1, wherein: the tail of the buffer is provided with a threaded rod, and the inner sides of the free ends of the piston rods of the first hydraulic buffer and the second hydraulic buffer are both provided with internal threads matched with the threaded rod for use.

3. The crane trolley with the buffer device as claimed in claim 1, wherein: the buffer is a polyurethane buffer, and the head of the buffer is provided with a buffer bulge.

4. The crane trolley with the buffer device as claimed in claim 1, wherein: the free end of the second hydraulic buffer and the free end of the first hydraulic buffer are positioned on the same horizontal line.

5. The crane trolley with the buffer device as claimed in claim 1, wherein: the free ends of the piston rods of the first hydraulic buffer and the second hydraulic buffer are respectively sleeved with a shoulder support, and the exposed outer part of each piston rod is sleeved with a buffer spring.

6. The crane trolley with the buffer device as claimed in claim 1, wherein: the first hydraulic buffer is arranged above the same rail, and the second hydraulic buffer is arranged above the other rail.

7. The crane trolley with the buffer device as claimed in claim 1, wherein: the mounting comprises first L template and riser welding, the riser passes through bolt group and the both corners fixed connection of dolly, the connection base of second hydraulic buffer passes through the riser fixed connection of bolt group and first L template.

8. The crane trolley with the buffer device as claimed in claim 7, wherein: stop device is provided with two sets ofly, and every stop device of group includes a connecting piece and two spacing wheels that use with the track cooperation, spacing wheel all is connected with the pivot, the pivot all is connected with relative connecting piece top.

9. The crane trolley with the buffer device as claimed in claim 8, wherein: the connecting piece is a second L-shaped plate, and a vertical plate of the second L-shaped plate is fixedly connected with a vertical plate of the first L-shaped plate through a bolt group.