Fork arm carrier with hidden rotating shaft

Abstract

The utility model relates to the technical field of fork arm carriers, in particular to a fork arm carrier with a hidden rotating shaft, which comprises a fixed frame and a movable frame, the fork arm carrier is mounted on the front side of a forklift gantry, the fixed frame comprises a fixed frame main body, a support beam and a rotating shaft, the fixed frame main body is fixed on the gantry in a liftable manner, and the rotating shaft is fixed on the fixed frame main body. The supporting beam is horizontally and transversely arranged on the fixed frame body, the rotating shaft is arranged on the supporting beam in the length direction of the supporting beam, the movable frame comprises a movable frame body and a mounting beam, the mounting beam is horizontally and transversely arranged on the movable frame body and located over the supporting beam, and the bottom of the mounting beam is attached to the top of the supporting beam. And meanwhile, the supporting beam and the mounting beam are integrally arranged up and down, so that the front-back distance can be eliminated, the length of the fork arm carrier is shortened, the distance between a fork mounting surface and a portal frame is shortened, the overall occupied space of the forklift is reduced, and the trafficability of the forklift is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fork frames, in particular to a fork frame with a hidden rotating shaft. Background Art

[0002] A forklift usually includes a chassis system, a gantry system and a fork system. The gantry system includes a gantry located at the front side of the chassis system, and the fork system includes a fork frame that can be raised and lowered on the gantry and a fork installed on the fork frame. In order to increase the forking range and forking angle of the fork, the fork frame can usually drive the fork to perform tilting and translational movements.

[0003] In the prior art, the fork frame includes a fixed frame and a movable frame, wherein the movable frame is rotatably connected to the fixed frame, the fork is mounted on the movable frame, and the movable frame is driven to rotate by a tilting cylinder to adjust the angle of the fork. However, the existing movable frame is rotatably connected to the fixed frame by a rear hinged ear plate, which will cause a certain distance between the movable frame and the fixed frame, thereby causing the overall length of the fork frame to be longer, resulting in a longer overall length of the forklift, a larger turning radius, and worse passability. Summary of the invention

[0004] The present invention is made in consideration of the above-mentioned problems. The purpose of the present invention is to provide a fork frame with a hidden rotating shaft, which can shorten the overall length of the fork frame, thereby reducing the overall length of the forklift, so that it occupies less space and has good passability.

[0005] In order to achieve the above object, the utility model provides a fork frame with a hidden rotating shaft, wherein the fork frame is installed on the front side of a forklift mast, and the fork frame comprises:

[0006] A fixed frame, comprising a fixed frame body, a support beam and a rotating shaft, wherein the fixed frame body is fixed on the door frame in a liftable manner, the support beam is arranged on the fixed frame body in a horizontal direction, and the rotating shaft is arranged on the support beam in a length direction of the support beam;

[0007] A movable frame, comprising a movable frame body and a mounting beam, wherein the mounting beam is horizontally arranged on the movable frame body and is used for mounting a fork;

[0008] The mounting beam is located directly above or directly below the supporting beam, is rotatably connected to the supporting beam via the rotating shaft, and can move horizontally along the rotating shaft.

[0009] According to the fork frame with a hidden rotating shaft described above, the rotating shaft is fixed on the top of the supporting beam, a slider is provided at the bottom of the mounting beam, the mounting beam is connected to the rotating shaft through the slider, a slide groove adapted to the rotating shaft is provided at the bottom of the slider, and the rotating shaft is located in the slide groove.

[0010] According to the fork frame with a hidden rotating shaft described above, the movable frame body includes a bottom beam and connecting plates located at both ends of the bottom beam, the lower end of the connecting plate is connected to one end of the bottom beam, and the two ends of the mounting beam are respectively connected to the upper ends of the two connecting plates.

[0011] The fork frame with a hidden rotating shaft described above further includes a side shift oil cylinder, two side shift oil cylinders are respectively fixed at two ends of the support beam, and the piston rods of the two side shift oil cylinders are respectively connected to the two connecting plates.

[0012] According to the fork frame with a hidden rotating shaft described above, it also includes a tilting cylinder, and two tilting cylinders are symmetrically arranged on the rear side of the movable frame body and are both connected to the bottom beam.

[0013] According to the fork frame with a hidden rotating shaft described above, a mounting plate is provided on the front side of the mounting beam, the fork is fixed on the mounting plate, and the front end surface of the mounting plate is flush with the front end surface of the support beam.

[0014] The utility model has the following beneficial effects: the fixed frame comprises a fixed frame body, a support beam and a rotating shaft, the rotating shaft is arranged on the support beam along the length direction of the support beam, the movable frame comprises a movable frame body and a mounting beam, the mounting beam for mounting the fork is located directly above the support beam, that is, the support beam and the mounting beam are arranged along the up-down direction, which can reduce the front-to-back distance between the fixed frame and the movable frame, shorten the length of the fork frame, and thus shorten the overall length of the vehicle body, reduce the occupied space, and improve its passability at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the embodiment;

[0016] Figure 2 is a schematic diagram of the activity frame structure of an embodiment;

[0017] Figure 3 It is a schematic diagram of the assembly structure of the slider and the fixed frame of the embodiment.

[0018] In the figure:

[0019] 1. Fixed frame; 11. Fixed frame body; 12. Support beam; 13. Rotating shaft; 2. Movable frame; 21. Movable frame body; 211. Bottom beam; 212. Connecting plate; 22. Mounting beam; 221. Sliding block; 222. Mounting plate; 3. Side shift cylinder; 4. Tilt cylinder. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figure 1-3 As shown, a fork frame with a hidden rotating shaft includes a fixed frame 1 and a movable frame 2, the fork frame is installed on the front side of the forklift door frame, the fixed frame 1 includes a fixed frame body 11, a support beam 12 and a rotating shaft 13, the fixed frame body 11 can be fixed on the door frame in a lifting manner, the support beam 12 is arranged on the fixed frame body 11 along the horizontal transverse direction, the rotating shaft 13 is arranged on the support beam 12 along the length direction of the support beam 12, the movable frame 2 includes a movable frame body 21 and a mounting beam 22, the mounting beam 22 is arranged on the movable frame body 21 along the horizontal transverse direction, and is used to install the fork In this embodiment, the mounting beam 22 is located directly above the support beam 12, and its bottom is in contact with the top of the support beam 12, and is rotatably connected to the support beam 12 through the rotating shaft 13, that is, the rotating shaft 13 can be hidden between the support beam 12 and the mounting beam 22. At the same time, since the support beam 12 and the mounting beam 22 are arranged up and down as a whole, the front and rear spacing can be eliminated, thereby shortening the length of the fork frame, shortening the distance between the fork mounting surface and the door frame, reducing the overall space occupied by the forklift, and improving its passability. At the same time, the mounting beam 22 can also move horizontally along the rotating shaft 13, and has good integrity.

[0022] In order to realize the lateral movement of the mounting beam 22, the rotating shaft 13 is fixed on the top of the supporting beam 12, and a slider 221 is provided at the bottom of the mounting beam 22. The mounting beam 22 is connected to the rotating shaft 13 through the slider 221. A slide groove adapted to the rotating shaft 13 is provided at the bottom of the slider 221. The rotating shaft 13 is located in the slide groove, and the slide groove is set as an arc groove. When the mounting beam 22 rotates, it can rotate around the rotating shaft 13 through the slider 221, and can also move horizontally along the rotating shaft 13 through the slider 221.

[0023] In order to realize the lateral drive of the fork, the movable frame body 21 includes a bottom beam 211 and connecting plates 212 located at both ends of the bottom beam 211, the lower end of the connecting plate 212 is connected to one end of the bottom beam 211, and the two ends of the mounting beam 22 are respectively connected to the upper ends of the two connecting plates 212. It also includes a side shift cylinder 3, the two side shift cylinders 3 are respectively fixed at the two ends of the support beam 12, and the piston rods of the two side shift cylinders 3 are respectively connected to the two connecting plates 212, the two side shift cylinders 3 can move synchronously, and the mounting beam 22 and the fork are moved laterally by driving the two connecting plates 212 to move synchronously.

[0024] In order to provide driving force for the tilting of the fork, a tilting cylinder 4 is also included. The two tilting cylinders 4 are symmetrically arranged on the rear side of the movable frame body 21 and are both connected to the bottom beam 211. The tilting cylinders 4 are used to drive the bottom beam 211 to tilt, thereby driving the mounting beam 22 and the fork to rotate around the rotating shaft 13. Since two tilting cylinders 4 are used, the driving stability is better.

[0025] In order to achieve the installation of the fork, a mounting plate 222 is provided on the front side of the mounting beam 22, and the fork is fixed on the mounting plate 222. The front end surface of the mounting plate 222 is flush with the front end surface of the support beam 12. By setting the mounting beam 22 and the support beam 12 up and down, the distance from the front end surface of the mounting plate 222 to the door frame can be shortened, that is, the fork is retracted, thereby reducing the overall length.

[0026] The technical solution of the utility model is described in detail above in conjunction with the accompanying drawings, and the described embodiments are used to help understand the idea of ​​the utility model. The specific embodiments described herein are merely examples of the spirit of the utility model. A person skilled in the art of the utility model may make various modifications or supplements to the described specific embodiments or replace them in a similar manner, but this will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A fork frame with a hidden rotating shaft, the fork frame is installed on the front side of the forklift mast, characterized in that: The fork frame comprises: A fixed frame, comprising a fixed frame body, a support beam and a rotating shaft, wherein the fixed frame body is fixed on the door frame in a liftable manner, the support beam is arranged on the fixed frame body in a horizontal direction, and the rotating shaft is arranged on the support beam in a length direction of the support beam; A movable frame, comprising a movable frame body and a mounting beam, wherein the mounting beam is horizontally arranged on the movable frame body and is used for mounting a fork; The mounting beam is located directly above or directly below the supporting beam, is rotatably connected to the supporting beam via the rotating shaft, and can move horizontally along the rotating shaft.

2. A fork frame with a hidden rotating shaft according to claim 1, characterized in that: The rotating shaft is fixed on the top of the supporting beam, a slider is provided at the bottom of the mounting beam, the mounting beam is connected to the rotating shaft via the slider, a slide groove matched with the rotating shaft is provided at the bottom of the slider, and the rotating shaft is located in the slide groove.

3. A fork frame with a hidden rotating shaft according to claim 1 or 2, characterized in that: The movable frame body includes a bottom beam and connecting plates located at both ends of the bottom beam, the lower end of the connecting plate is connected to one end of the bottom beam, and the two ends of the mounting beam are respectively connected to the upper ends of the two connecting plates.

4. A fork frame with a hidden rotating shaft according to claim 3, characterized in that: It also includes a side shift oil cylinder, wherein two side shift oil cylinders are respectively fixed at two ends of the support beam, and piston rods of the two side shift oil cylinders are respectively connected to the two connecting plates.

5. The fork frame with a hidden rotating shaft according to claim 3, characterized in that: It also includes a tilting oil cylinder, two of which are symmetrically arranged on the rear side of the movable frame body and are both connected to the bottom beam.

6. A fork frame with a hidden rotating shaft according to claim 1 or 2, characterized in that: A mounting plate is provided on the front side of the mounting beam, the fork is fixed on the mounting plate, and the front end surface of the mounting plate is flush with the front end surface of the support beam.

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