CN217892405U - Combined front axle of forklift gantry - Google Patents

Abstract

The utility model discloses a combined forklift gantry front axle, which comprises a front axle lower beam assembly and front wheels, wherein the front axle lower beam assembly is welded at the bottom of the forklift gantry, two ends of the front axle lower beam assembly are connected with the front wheels through two groups of bearings which are arranged side by side, two ends of the front axle lower beam assembly are fixedly provided with brakes for limiting the front wheels, and the brakes are positioned at the inner sides of the front wheels, which are close to the forklift gantry; according to the front axle lower cross beam assembly and the forklift gantry are fixed in a welding mode, compared with the traditional separated connection, the front suspension distance of the forklift gantry can be reduced, the dead weight of the whole forklift gantry is reduced, the wheel track of the whole forklift becomes small, the turning half warp becomes small, the brake is arranged on the inner side of the front wheel, namely the brake is arranged in the front wheel, the brake can be protected, and a good dustproof and antitheft effect is achieved; the joint of the front wheel and the front axle lower beam assembly is provided with the parallel double bearings for connection, so that the bearing capacity of the front wheel can be improved, and the service lives of the brake and the front wheel can be prolonged.

Description

Combined forklift gantry front axle

Technical Field

The utility model relates to a fork truck portal technical field, concretely relates to combination formula front axle structure for fork truck portal.

Background

The front axle of the forklift mast belongs to an indispensable part in the field of forklifts, is a supporting part used for connecting a front wheel and is arranged at the lower end of the forklift mast; at present, when the lower end of a forklift mast is connected with a truck body, a common structure is that the lower end of the forklift mast is detachably connected through an independent front axle, and the connection mode has no problem as a conventional general configuration for a forklift with the height of more than 1.5t under the condition of not influencing the front suspension distance of the mast;

however, in the design and assembly of the portal frame below 0.8t-1.2t, if the separate connection of the independent front axle is adopted, certain disadvantages exist, and the following are specific: the front suspension design of the portal frame is enlarged, the turning radius is enlarged along with the front suspension design, the self weight of the whole vehicle is enlarged, and the design performance of the whole vehicle and the defects of realization of related functions are influenced when narrow space operation is involved; at the same time, the brake is often placed outside the roller used by the existing forklift, and no corresponding protection measures exist, so that the service life of the brake is influenced.

Based on this, the utility model provides a modular fork truck portal front axle solves the above-mentioned not enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modular fork truck portal front axle to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a modular fork truck portal front axle, includes front axle bottom end rail assembly and front wheel, the welding of front axle bottom end rail assembly is in fork truck portal bottom, the both ends of front axle bottom end rail assembly all are connected with the front wheel through at least two sets of bearings that set up side by side, the both ends of front axle bottom end rail assembly have set firmly the stopper spacing to the front wheel, and the stopper is located the inboard that the front wheel is close to the fork truck portal.

As a further aspect of the present invention: the front axle lower beam assembly comprises a lower beam welded to the bottom of a forklift gantry, side plates are fixedly arranged at two ends of the lower beam, wheel shafts are detachably mounted on the side plates, and the inner contour of each bearing is connected with the wheel shafts and the outer contour of each bearing is connected with the inner portion of each front wheel.

As a further aspect of the present invention: one side that the bottom end rail is close to the fork truck automobile body has set firmly the support, the support passes through the extensible member and is connected with the fork truck automobile body.

As a further aspect of the present invention: one side of the lower cross beam is fixedly provided with a rib plate with an arc-shaped structure.

As a further aspect of the present invention: the outer side of the bearing, which is far away from the brake, is provided with a bearing inner retainer ring and a bearing outer retainer ring, the inner contour of the bearing inner retainer ring is in interference fit with the outer contour of the wheel shaft, and the outer contour of the bearing outer retainer ring is in interference fit with the inner side of the front wheel;

the bearing outer retainer ring is positioned on the outer side of the bearing inner retainer ring, and a gap exists between the bearing outer retainer ring and the bearing inner retainer ring.

As a further aspect of the present invention: two end parts of the wheel shaft are fixed through fastening nuts, and the front wheel is limited on the wheel shaft by the fastening nuts; and a brake gasket is arranged between the fastening nut and the bearing inner retainer ring, and is sleeved outside the wheel shaft.

As a further aspect of the present invention: the one end that the front wheel kept away from front axle bottom end rail assembly passes through fastening screw and installs ash blocking plate, fastening screw's outside cover is equipped with the packing ring.

As a further aspect of the present invention: the bearing is a double-row angular contact ball bearing.

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

firstly, the front axle lower cross beam assembly and the forklift mast are fixed in a welding mode, compared with the traditional separated connection, the front overhang distance of the forklift mast can be reduced, the dead weight of the whole forklift mast is reduced, the wheel track of the whole forklift is reduced, the half-turn radius is reduced, and the forklift mast is suitable for working in narrow roadways of the forklift mast below 0.8t-1.2 t;

secondly, the brake is arranged on the inner side of the front wheel, namely the brake is internally arranged, so that the brake can be protected, and a good dustproof and antitheft effect is achieved; the bearing capacity of the front wheel can be improved and the service lives of the brake and the front wheel can be prolonged by arranging the parallel double bearings at the joint of the front wheel and the front axle lower beam assembly;

and finally, the wheel shafts at the two ends of the front axle lower beam assembly are detachably mounted, so that an operator can correspondingly replace the front wheels according to different sizes of the front wheels, the front axle lower beam assembly is suitable for the front wheels with different sizes, and the practicability of the front axle lower beam assembly is improved.

Drawings

Fig. 1 is a schematic structural view of a front axle of a combined forklift mast of the utility model;

fig. 2 is a cross-sectional view of the present invention in fig. 1;

FIG. 3 is a schematic structural view of the front axle lower cross beam assembly of the present invention;

FIG. 4 is a partial cross-sectional view of the front wheel and axle connection of the present invention;

FIG. 5 is an enlarged view of a portion I of FIG. 4 according to the present invention;

description of the reference numerals: 1. a front wheel; 2. a dust blocking plate; 3. fastening a nut; 4. a brake washer; 5. an inner bearing retainer ring; 6. an outer bearing retainer ring; 7. a bearing; 8. a brake; 9. a front axle lower beam assembly; 901. a wheel axle; 902. a lower cross beam; 903. a rib plate; 904. a side plate; 905. a support; 10. a telescoping member; 11. a gasket; 12. and (5) fastening the screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a front axle of a combined forklift gantry comprises a front axle lower beam assembly 9, front wheels 1 arranged at two ends of the front axle lower beam assembly 9 and a telescopic part 10 arranged in the middle of the front axle lower beam assembly 9, wherein during installation, the front axle lower beam assembly 9 is welded at the bottom of the forklift gantry, and the specific welding position is selected according to different types of forklift trucks; then connecting the telescopic member 10 with the forklift body; it should be noted that the telescopic member 10 is selected from hydraulic tilt cylinders, and the specific structure and principle of the tilt cylinder are not described in detail herein since it belongs to the existing and well-established technology.

Referring to fig. 2, both ends of a front axle lower beam assembly 9 are connected with a front wheel 1 through two groups of bearings 7 (shown in fig. 2) which are arranged in parallel, and it should be noted that the bearings 7 are selected from double-row angular contact ball bearings; the double-row angular contact ball bearing belongs to the existing mature technology, so the specific structure and principle of the double-row angular contact ball bearing are not described in detail, wherein three groups of bearings 7 can be selected, the number of the bearings can depend on the bearing capacity of the front wheel, the front wheel arranged by the double bearings has stronger bearing capacity than the front wheel arranged by the single bearing, and the bearing capacity of the front axle is further improved; both ends of front axle bottom end rail assembly 9 set firmly have the stopper 8 spacing to the front wheel, and stopper 8 is located the inboard that the front wheel 1 is close to the fork truck portal, and it should be noted that CV5-3502100 stopper or CV5-3502200 stopper are selected to the model of stopper 8, and stopper 8 is located the inboard of front wheel 1, then has certain protection effect to the stopper, can play dustproof ash-discharging theftproof effect.

Further, referring to fig. 3, the front axle lower beam assembly 9 includes a lower beam 902 welded at the bottom of the forklift mast, two ends of the lower beam 902 are fixedly provided with side plates 904, and the side plates 904 are detachably provided with wheel shafts 901, it should be noted that the size of the wheel shaft 901 can be selected correspondingly according to the front wheels 1, so that the wheel shaft can be matched with the front wheels 1, the inner contour of the bearing 7 is connected with the wheel shaft 901, and the outer contour is connected with the inside of the front wheels 1; the front wheel 1 can bring the bearing 7 to rotate outside the axle 901 when the front wheel rotates.

Referring to fig. 1 and 3, a support 905 is fixedly arranged on one side of the lower cross beam 902 close to the forklift body, and the support 905 is movably connected with the forklift body through an expansion piece 10. One side of the lower cross beam 902 is fixedly provided with a rib plate 903 in an arc-shaped structure, and the rib plate 903 can ensure the stability of the lower cross beam 902 and ensure the strength and hardness of the lower cross beam 902 in subsequent use.

Referring to fig. 2 and 5, two ends of the axle 901 are fixed by the fastening nuts 3, and the fastening nuts 3 limit the front wheel on the axle 901, so as to play a role in positioning the front wheel 1 and prevent the front wheel 1 from shifting during the walking process; a brake washer 4 is arranged between the fastening nut 3 and the bearing inner retainer ring 5, the brake washer 4 is sleeved outside the wheel shaft 901, as shown in fig. 5, the brake washer 4 is not in contact with the front wheel 1, so that the position of the brake washer 4 is not affected when the front wheel 1 rotates, and the stability of the wheel shaft can be further ensured by the arrangement of the brake washer 4.

Referring to fig. 2 and 5, in the present application, an inner bearing retainer ring 5 and an outer bearing retainer ring 6 are installed on the outer side of a bearing 7 away from a brake 8, wherein the inner contour of the inner bearing retainer ring 5 is in interference fit with the outer contour of a wheel axle 901, when a front wheel 1 rotates, the inner bearing retainer ring 5 is in an unknown state, and the inner bearing retainer ring 5 is not affected; the outer contour of the bearing outer retainer ring 6 is in interference fit with the inner side of the front wheel 1; the bearing outer retainer ring 6 is positioned at the outer side of the bearing inner retainer ring 5, and a gap is formed between the bearing outer retainer ring and the bearing inner retainer ring; when the front wheel 1 rotates, the bearing outer retainer ring 6 can rotate along with the front wheel, and because a gap exists between the bearing outer retainer ring 6 and the bearing inner retainer ring 5, the rotation of the bearing outer retainer ring 6 cannot influence the bearing inner retainer ring 5.

Referring to fig. 5, the ash blocking plate 2 is installed through fastening screw 12 to the one end that front wheel 1 kept away from front axle bottom end rail assembly 9, and the outside cover of fastening screw 12 is equipped with packing ring 11, can play the effect of keeping off the ash for front wheel and shaft 901 contact position through setting up ash blocking plate 2, prevents that outside dust from influencing inside structure, causes the consequence of the not good clearance in later stage.

The door frame and the vehicle body are convenient and flexible to mount; the front overhang of the gantry is reduced, the self weight of the whole vehicle is reduced, and the purpose of optimizing the function of the whole vehicle is achieved; the specific operating principle is as follows: before the front axle lower beam assembly 9 and the front wheels 1 at two ends are installed, firstly, the corresponding wheel shaft 901 is selected according to the size difference of the front wheels 1, the wheel shaft 901 is detachably installed at two ends of a lower beam 902, then, the wheel shaft 901 is connected with the front wheels 1 through a bearing 7, a bearing inner retainer ring 5 is sleeved on the outer side of the wheel shaft 901, the outer contour of the bearing outer retainer ring 6 is attached to the inner side of the front wheels 1 and rotates along with the front wheels 1, and the bearing inner retainer ring 5 and the bearing outer retainer ring 6 are not influenced by each other;

then, a brake gasket 4 is sleeved on the wheel shaft 901, then a fastening nut 3 is fixed at the end of the wheel shaft 901 in a threaded manner, then an ash blocking plate 2 is taken, a middle through hole part of the front wheel 1 is fixed on the front wheel by a fastening screw 12 through a gasket 11, ash is prevented from entering the inner side of the front wheel 1, and a certain protection effect can be achieved; then welding a lower cross beam 902 at the bottom of the forklift gantry, and then connecting one end of an inclined oil cylinder with a support 905 and connecting the other end with a forklift body;

when the forklift is used, the forklift can move to drive the portal frame to move, the lower cross beam and the front wheel 1 at the bottom also move along with the portal frame, the front wheel 1 rotates to assist the portal frame to move and rotate, when the inclination of the portal frame needs to be adjusted, a user can control the inclination oil cylinder to realize the front and back inclination of the portal frame flexibly, and the forklift portal frame front axle type combined structure is suitable for a novel forklift portal frame front axle type combined structure of 0.8t-1.2t, so that the portal frame and a forklift body can be conveniently and flexibly installed; the front overhang of the door frame is reduced, the self weight of the whole vehicle is reduced, and the purpose of optimizing the function of the whole vehicle is realized.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all the equivalent changes made within the scope of the claims of the present application are the protection scope of the claims of the present application.

Claims (8)

1. The utility model provides a modular fork truck portal front axle, includes front axle bottom end rail assembly (9) and front wheel (1), its characterized in that: the front axle lower beam assembly (9) is welded at the bottom of the forklift portal frame, two ends of the front axle lower beam assembly (9) are connected with the front wheel (1) through at least two groups of bearings (7) which are arranged side by side, two ends of the front axle lower beam assembly (9) are fixedly provided with brakes (8) which limit the front wheel, and the brakes (8) are positioned on the inner side of the front wheel (1) close to the forklift portal frame.

2. The modular forklift mast forward axle of claim 1, characterized in that: the front axle lower beam assembly (9) comprises a lower beam (902) welded at the bottom of a forklift gantry, side plates (904) are fixedly arranged at two ends of the lower beam (902), wheel shafts (901) are detachably mounted on the side plates (904), the inner contour of each bearing (7) is connected with the wheel shaft (901), and the outer contour of each bearing is connected with the inner part of each front wheel (1).

3. The modular forklift mast forward axle of claim 2, characterized in that: one side that bottom end rail (902) are close to the fork truck automobile body has set firmly support (905), support (905) are through extensible member (10) and fork truck body coupling.

4. The front axle of a modular forklift mast as claimed in claim 3, wherein: and a rib plate (903) in an arc-shaped structure is fixedly arranged on one side of the lower cross beam (902).

5. The front axle of a modular forklift mast as claimed in claim 2, wherein: the outer side of the bearing (7) far away from the brake (8) is provided with a bearing inner retainer ring (5) and a bearing outer retainer ring (6), the inner contour of the bearing inner retainer ring (5) is in interference fit with the outer contour of the wheel shaft (901), and the outer contour of the bearing outer retainer ring (6) is in interference fit with the inner side of the front wheel (1);

the bearing outer retainer ring (6) is positioned on the outer side of the bearing inner retainer ring (5), and a gap is formed between the bearing outer retainer ring and the bearing inner retainer ring.

6. The modular forklift mast forward axle of claim 2, characterized in that: two ends of the wheel shaft (901) are fixed through fastening nuts (3), and the front wheel is limited on the wheel shaft (901) through the fastening nuts (3);

and a brake gasket (4) is arranged between the fastening nut (3) and the bearing inner retainer ring (5), and the brake gasket (4) is sleeved outside the wheel shaft (901).

7. The front axle of a modular forklift mast as claimed in claim 1, wherein: the front wheel (1) is kept away from one end of the front axle lower beam assembly (9) and is provided with the dust blocking plate (2) through the fastening screw (12), and the outer side of the fastening screw (12) is sleeved with the gasket (11).

8. The modular forklift mast forward axle of claim 1, characterized in that: the bearing (7) is a double-row angular contact ball bearing.

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