CN219031684U - Forward type fork truck that possesses raising and lowering functions - Google Patents

Abstract

The utility model discloses a forward forklift with a lifting function, which comprises a portal, wherein a first rail is vertically arranged on the portal, a fork is connected in the first rail in a rolling way, a top beam is arranged on the first rail, a vibration damper is arranged at the bottom of the top beam, a lifting device is arranged on the portal, two chain wheels are symmetrically arranged on the lifting device, a braking device is arranged on each chain wheel and meshed with a chain, one end of each chain is fixed on the portal, and the other end of each chain is fixed on the fork.

Description

Forward type fork truck that possesses raising and lowering functions

Technical Field

The utility model relates to the technical field of forklifts, in particular to a forward fork lift with a lifting function.

Background

The forward fork truck is one kind of industrial truck and warehouse fork truck, and is one kind of forward fork truck for loading and unloading, stacking and short distance transportation of pallet cargo. For the transportation of large articles in storage, battery-powered is often used. The forward fork truck integrates the advantages of a balanced-weight electric fork truck and a piling car, and has the characteristics of environmental protection, energy saving, low noise, high lifting, small operation space and the like.

At present, a hydraulic pump is used for pushing a movable pulley to control the lifting of a fork by matching with a chain, so that the lifting range is increased, and meanwhile, a hydraulic telescopic frame, a translation adjusting mechanism and an angle adjusting mechanism are additionally arranged, so that the fork truck can be more flexibly adjusted to be suitable for various environments, but the fork is easy to collide with a top beam to vibrate when rising to the highest position, and the stability of goods is affected; and the hydraulic cylinder can be invalid due to the fact that the load is too large for a long time, so that the fork falls.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the forward fork lift with the lifting function, which can relieve the impact in the lifting process of the portal system and can prevent the fork from falling in time when accidents happen.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a forward fork truck that possesses lifting function, includes the portal, vertical first track that is provided with on the portal, roll connection has the fork in the first track, install the back timber on the first track, the bottom of back timber is provided with damping device, elevating gear has been installed on the portal, elevating gear goes up the symmetry and is provided with two sprockets, two all be provided with arresting gear on the sprocket to the meshing has the chain, the one end of chain is fixed on the portal, and the other end is fixed on the fork.

The utility model is further provided with: the vibration damper comprises a plurality of first springs, and the first springs are fixed at the bottom of the top beam and are connected with the pressing plate together.

The utility model is further provided with: the lifting device comprises a hydraulic rod, the hydraulic rod is vertically arranged on the portal, an installation frame is symmetrically fixed on an output shaft of the hydraulic rod, two ends of the installation frame are rotationally connected with idler wheels, and the idler wheels are in rolling connection with the second track.

The utility model is further provided with: the chain wheel is rotatably arranged on the mounting frame, the braking device comprises an inner edge ratchet wheel, the direction of the ratchet teeth of the inner edge ratchet wheel is opposite to the direction of the rotation of the chain wheel when the lifting device descends, and the inner edge ratchet wheel is fixedly arranged on the mounting frame.

The utility model is further provided with: the chain wheel is provided with a sliding groove, the sliding groove is arranged in an arc shape extending towards the direction deviating from the axis of the chain wheel, and the extending direction of the sliding groove is the same as the direction of the ratchet teeth of the inner edge ratchet wheel.

The utility model is further provided with: the chain wheel is provided with a fixed block, the fixed block is connected with a second spring, the other end of the second spring is connected with a clamping block, the clamping block is in sliding connection with the sliding groove, the clamping block is provided with a balancing weight, the part of the clamping block extending into the inner edge ratchet wheel gear ring is provided with a pawl, and the pawl can be clamped with a ratchet wheel of the inner edge ratchet wheel.

The utility model has the advantages that the vibration damper composed of the spring and the pressing plate is additionally arranged below the top beam, so that rigid collision with the top beam is avoided when the fork is lifted to the limit position, and the running stability of the fork is improved; the braking device is arranged on the chain wheel, when the lifting device fails and the fork drops in overspeed, the clamping block swings outwards under the drive of centrifugal force and overcomes the pulling force of the spring, and the clamping block is clamped with the ratchet teeth of the inner edge ratchet wheel to prevent the chain wheel from continuing to rotate, so that the fork is prevented from falling, and the safety is improved.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a front view of the device shown in FIG. 1;

FIG. 3 is a schematic view of a lifting device according to the present utility model;

FIG. 4 is a schematic view of a brake device according to the present utility model;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 in a normal state of the present utility model;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 4 in the locked state of the present utility model;

in the figure: 1. a door frame; 101. a first track; 102. a second track; 103. a top beam; 2. a fork; 3. a lifting device; 301. a hydraulic rod; 302. a mounting frame; 303. a sprocket; 304. an inner edge ratchet; 305. a roller; 4. a chain; 5. a first spring; 6. a pressing plate; 7. a chute; 8. a fixed block; 9. a second spring; 10. and (5) clamping blocks.

Detailed Description

It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

Referring to fig. 1-6, the present utility model provides the following technical solutions:

the utility model provides a forward fork truck that possesses lifting function, including portal 1, be provided with first track 101 and second track 102 along vertical direction on the portal 1, roll connection has fork 2 in the first track 101, roof beam 103 is installed on the top of first track 101, roof beam 103 has spacing effect to the rising of fork 2, be provided with vibration damper on the roof beam 103, vibration damper includes a plurality of first springs 5, first spring 5 is fixed on the bottom surface of roof beam 103, the bottom of a plurality of first springs 5 has together fixedly connected with support clamp plate 6, contact with support clamp plate 6 when fork 2 rises to the top, the vibration that the rigid striking of fork 2 and roof beam 103 caused has been reduced through the cushioning effect of first spring 5, reduce the risk that the goods dropped.

The lifting device 3 is installed on the portal 1, the lifting device 3 and the second track 102 are arranged on the same plane, the lifting device 3 comprises a hydraulic rod 301, the hydraulic rod 301 is installed on the portal 1, an output shaft of the hydraulic rod 301 is arranged upwards along the vertical direction, an installation frame 302 is symmetrically fixed on the output shaft, two ends of the installation frame 302 are rotationally connected with idler wheels 305, the two idler wheels 305 are rotationally connected with the second track 102, the installation frame 302 cannot rotate, two chain wheels 303 are rotationally connected at symmetrical positions of two ends of the installation frame 302, chains 4 are engaged and connected on the two chain wheels 303, one ends of the two chains 4 are fixed on the portal 1, the other ends of the two chain wheels are fixed on a fork 2, and when the hydraulic rod 301 is controlled to push the installation frame 302 to move up and down, the chain wheels 303 are driven to drive the chain 4 to drag the fork 2 to ascend or descend, and the lifting of a transported object is achieved.

The two chain wheels 303 are both provided with a braking device, the braking device comprises an inner edge ratchet wheel 304, the ratchet direction of the inner edge ratchet wheel 304 is opposite to the rotating direction of the chain wheel 303 when the fork 2 descends, the inner edge ratchet wheel 304 is fixed on the mounting frame 302 and is close to the chain wheel 303, the chain wheel 303 is provided with a chute 7, the chute 7 is arc-shaped, extends along the direction deviating from the axle center of the chain wheel 303, the outwards extending direction of the chute 7 is the same as the ratchet direction of the inner edge ratchet wheel 304, the chain wheel 303 is provided with a fixed block 8, the fixed block 8 is connected with a second spring 9, the other end of the second spring 9 is connected with a clamping block 10, the clamping block 10 is in sliding connection with the chute 7, a balancing weight is arranged on the clamping block 10, the part of the side surface of the clamping block 10 extending into the gear ring of the inner edge ratchet wheel 304 is provided with a pawl, when the fork 2 descends in an overspeed manner, the rotating speed of the chain wheel 303 is accelerated, the clamping block 10 outwards swings along the chute 7 under the action of centrifugal force, and is clamped with the ratchet teeth of the inner edge ratchet wheel 304, so that the chain wheel 303 stops rotating, and the falling is prevented from falling down, and the safety of the fork 2 is improved.

Specifically, a vibration damper composed of a first spring 5 and a pressing plate 6 is additionally arranged below the top beam 103, so that rigid collision with the top beam 103 is avoided when the fork 2 rises to the limit position, and the running stability of the fork 2 is improved; the chain wheel 303 is provided with a braking device, when the lifting device 3 fails and the fork 2 falls down in an overspeed manner, the clamping block 10 swings outwards under the drive of centrifugal force and overcomes the pulling force of the second spring 9, and is clamped with the ratchet teeth of the inner edge ratchet wheel 304, so that the chain wheel 303 is prevented from continuing to rotate, the fork 2 is prevented from falling, and the safety is improved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (6)

1. The utility model provides a forward fork truck that possesses lifting function, includes portal (1), vertical first track (101) that is provided with on portal (1), roll connection has fork (2), its characterized in that in first track (101): install back timber (103) on first track (101), the bottom of back timber (103) is provided with damping device, elevating gear (3) have been installed on portal (1), elevating gear (3) are last to be provided with two sprocket (303) symmetrically, two all be provided with arresting gear on sprocket (303) to the meshing has chain (4), the one end of chain (4) is fixed on portal (1), and the other end is fixed on fork (2).

2. The forward fork truck with lifting function according to claim 1, wherein: the vibration damper comprises a plurality of first springs (5), and the first springs (5) are fixed at the bottom of the top beam (103) and are connected with the pressing plate (6) together.

3. The forward fork truck with lifting function according to claim 2, wherein: be fixed with second track (102) on portal (1), second track (102) and first track (101) parallel arrangement, elevating gear (3) are including hydraulic stem (301), hydraulic stem (301) are vertical to be installed on portal (1), symmetry is fixed with mounting bracket (302) on the output shaft of hydraulic stem (301), the both ends of mounting bracket (302) are rotated and are connected with gyro wheel (305), gyro wheel (305) and second track (102) roll connection.

4. A forward fork lift truck with lifting function according to claim 3, wherein: the chain wheel (303) is rotatably arranged on the mounting frame (302), the braking device comprises an inner edge ratchet wheel (304), the direction of the ratchet teeth of the inner edge ratchet wheel (304) is opposite to the rotating direction of the chain wheel (303) when the lifting device (3) descends, and the inner edge ratchet wheel (304) is fixedly arranged on the mounting frame (302).

5. The forward fork truck with lifting function according to claim 4, wherein: the chain wheel (303) is provided with a chute (7), the chute (7) is arranged in an arc shape extending towards the direction deviating from the axis of the chain wheel (303), and the extending direction of the chute (7) is the same as the ratchet direction of the inner edge ratchet wheel (304).

6. The forward fork truck with lifting function according to claim 5, wherein: the chain wheel (303) is provided with a fixed block (8), the fixed block (8) is connected with a second spring (9), the other end of the second spring (9) is connected with a clamping block (10), the clamping block (10) is in sliding connection with the sliding groove (7), the clamping block (10) is provided with a balancing weight, the part, extending into the gear ring of the inner edge ratchet wheel (304), of the clamping block (10) is provided with a pawl, and the pawl can be clamped with the ratchet teeth of the inner edge ratchet wheel (304).

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