Forklift oil cylinder mounting and fixing mechanism and forklift

Abstract

The utility model provides an installing and fixing mechanism of a forklift oil cylinder and a forklift, and belongs to the technical field of forklift equipment. The mounting and fixing mechanism comprises a cylinder body fixing assembly which is connected with an inner gantry of the forklift and used for fixing a forklift oil cylinder so as to limit horizontal movement of the forklift oil cylinder; the cylinder bottom fixing assembly is arranged at the bottom of the cylinder body fixing assembly and used for making contact with the bottom of the forklift oil cylinder so as to support the forklift oil cylinder and comprises a cylinder bottom column used for being connected with the bottom of the forklift oil cylinder, and the face, away from the forklift oil cylinder, of the cylinder bottom column is an outer spherical face. The supporting plate is arranged at the bottom of the cylinder bottom column and fixedly connected with a bottom cross beam of the forklift inner portal, the face, close to the cylinder bottom column, of the supporting plate is an inner spherical face, and the outer spherical face can slide in the inner spherical face. The forklift oil cylinder is simple in structure, few in parts and small in installation occupied space, the cylinder bottom column is matched with the spherical face of the supporting plate, the overall stress condition of the forklift oil cylinder and the supporting plate is improved, and disassembly, assembly and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to the field of forklift equipment technology, specifically to a forklift cylinder mounting and fixing mechanism and a forklift. Background Technology

[0002] Forklifts, as important engineering vehicles, are widely used in various industries for stacking goods. The lifting and lowering of the working device is achieved by the extension and retraction of the hydraulic cylinder. The three-stage mast is mainly operated by a combination of one front hydraulic cylinder and two rear hydraulic cylinders. With the increase in stacking height, the lifting height can now reach more than 14 meters, and the length of the front hydraulic cylinder has also increased accordingly. Therefore, the installation and fixing of the front hydraulic cylinder of the high-lift mast is extremely important. At present, there are many types of hydraulic cylinder installation and fixing methods, but they all have some drawbacks. For example, the hydraulic cylinder will be tilted if the fixing is not secure, the welded support plate structure on the front hydraulic cylinder will cause the cylinder barrel to deform due to heat, the installation structure is complicated, there are many parts, which is time-consuming and labor-intensive, and the hydraulic cylinder will be strained under stress. Utility Model Content

[0003] The purpose of this utility model is to provide a mounting and fixing mechanism for a forklift cylinder and a forklift. The mounting and fixing mechanism and the forklift have a simple structure, few parts, and occupy little installation space. The spherical surface of the cylinder bottom column and the support plate improves the overall stress condition of the forklift cylinder and the support plate, and makes disassembly and maintenance convenient.

[0004] To achieve the above objectives, this utility model provides a mounting and fixing mechanism for a forklift cylinder, comprising:

[0005] A cylinder body fixing assembly is connected to the inner mast of the forklift and is used to fix the forklift cylinder to limit the horizontal movement of the forklift cylinder;

[0006] A cylinder bottom fixing assembly, disposed at the bottom of the cylinder body fixing assembly, is used to contact the bottom of the forklift cylinder to support the forklift cylinder, and includes:

[0007] A cylinder bottom post is used to connect to the bottom of the forklift cylinder, and the side of the cylinder bottom post away from the forklift cylinder is an outer spherical surface;

[0008] A support plate is disposed at the bottom of the cylinder bottom column and fixedly connected to the bottom crossbeam of the forklift inner mast. The side of the support plate near the cylinder bottom column is an inner spherical surface, and the outer spherical surface can slide within the inner spherical surface.

[0009] Optionally, the cylinder block fixing assembly includes:

[0010] The middle crossbeam is connected to the inner mast of the forklift. An arc-shaped groove is provided on the side of the middle crossbeam near the forklift cylinder. An arc-shaped pad matching the outer diameter of the forklift cylinder is provided in the arc-shaped groove for fixing the forklift cylinder.

[0011] Optionally, the cylinder block fixing assembly further includes:

[0012] An arc-shaped fixing clip is detachably connected to the central crossbeam. The inner arc surface of the arc-shaped fixing clip matches the outer diameter of the forklift cylinder and is used to cooperate with the arc-shaped pad to fix the forklift cylinder.

[0013] Optionally, the support plate has a through hole at its center, and the cylinder bottom column has a connecting column at its center on the side away from the forklift cylinder, and the connecting column is installed in the through hole.

[0014] Optionally, the diameter of the connecting post is smaller than the diameter of the through hole, the length of the connecting post is greater than the depth of the through hole, and the connecting post is fixed to the support plate by fasteners.

[0015] Optionally, the connecting column has a threaded hole at its center near the support plate, and the fastener includes a bolt that engages with the threaded hole to connect with the connecting column.

[0016] Optionally, the fastener further includes a baffle plate, which is sleeved on the bolt, and the diameter of the baffle plate is larger than the diameter of the through hole.

[0017] Optionally, the central crossbeam can be fixed at different positions on the forklift's inner mast.

[0018] On the other hand, the present invention also provides a forklift, the forklift including a forklift body and a mounting and fixing mechanism as described above, the mounting and fixing mechanism being used to fix the forklift cylinder on the forklift body.

[0019] Through the above technical solution, this utility model provides a forklift cylinder mounting and fixing mechanism and a forklift. A cylinder body fixing assembly is connected to the inner mast of the forklift to fix the forklift cylinder and limit its horizontal movement. A cylinder bottom fixing assembly is located at the bottom of the cylinder body fixing assembly and contacts the bottom of the forklift cylinder to support it. A cylinder bottom post is provided at the bottom of the forklift, with the side of the cylinder bottom post away from the forklift cylinder being an outer spherical surface. A support plate is provided at the bottom of the cylinder bottom post and at the fixed connection point with the bottom crossbeam of the inner mast of the forklift. The side of the support plate near the cylinder bottom post is an inner spherical surface, and the outer spherical surface can slide within the inner spherical surface. This utility model has a simple structure, few parts, and occupies little installation space. The spherical surfaces of the cylinder bottom post and the support plate improve the overall stress distribution of the forklift cylinder and the support plate, and facilitate disassembly and maintenance. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the mounting and fixing mechanism of a forklift cylinder according to one embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of a cylinder body fixing assembly according to one embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the mounting and fixing mechanism of a forklift cylinder according to one embodiment of the present utility model;

[0024] Figure 4 This is according to one embodiment of the present invention. Figure 3 Enlarged view of part A in the middle;

[0025] Figure 5 This is a schematic diagram of the mounting and fixing mechanism of a forklift cylinder according to one embodiment of the present utility model;

[0026] Figure 6 This is according to one embodiment of the present invention. Figure 5 Enlarged view of part B in the middle.

[0027] Explanation of reference numerals in the attached figures

[0028] Detailed Implementation

[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0030] In this embodiment of the utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of the components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] like Figure 1 The diagram shown is a schematic representation of the mounting and fixing mechanism for a forklift cylinder 3 according to one embodiment of the present invention. Figure 2 The diagram shown is a schematic representation of a cylinder body fixing assembly 20 according to one embodiment of the present invention. Figure 3 The diagram shown is a schematic representation of the mounting and fixing mechanism for a forklift cylinder 3 according to one embodiment of the present invention. Figure 4 The figure shown is one embodiment of the present invention. Figure 3 A magnified view of part A in the image. Figures 1 to 4 The mounting and fixing mechanism includes a cylinder body fixing assembly 20 and a cylinder bottom fixing assembly 30. The cylinder body fixing assembly 20 is connected to the inner mast 1 of the forklift and is used to fix the forklift cylinder 3 to limit its horizontal movement. The cylinder bottom fixing assembly 30 is located at the bottom of the cylinder body fixing assembly 20 and is used to contact the bottom of the forklift cylinder 3 to support it. The cylinder bottom fixing assembly 30 includes a cylinder bottom post 6 and a support plate 10. The cylinder bottom post 6 is connected to the bottom of the forklift cylinder 3, and the side of the cylinder bottom post 6 away from the forklift cylinder 3 is an outer spherical surface. The support plate 10 is located at the bottom of the cylinder bottom post 6 and is fixedly connected to the bottom crossbeam of the inner mast 1 of the forklift. The side of the support plate 10 near the cylinder bottom post 6 is an inner spherical surface, and the outer spherical surface can slide within the inner spherical surface. Two support brackets 7 are provided at the bottom of the support plate 10 to support it. By matching the outer spherical surface of the cylinder bottom column 6 and the inner spherical surface of the support plate 10, it can be ensured that the outer spherical surface can slide in the inner spherical surface when the forklift cylinder 3 is tilted, so that the cylinder has the flexibility to automatically return to its original position. The forklift cylinder 3 and the support plate 10 can have better contact and force distribution, preventing the cylinder from being stuck and causing damage to the cylinder seals and oil leakage.

[0033] In this embodiment, the cylinder fixing assembly 20 includes a central crossbeam 2 and an arc-shaped fixing clip 4. The central crossbeam 2 is connected to the inner mast 1 of the forklift. An arc-shaped groove is provided on the side of the central crossbeam 2 near the forklift cylinder 3. An arc-shaped pad 11 matching the outer diameter of the forklift cylinder 3 is provided in the arc-shaped groove for fixing the forklift cylinder 3. The arc-shaped pad 11 has a groove in the middle, so that the forklift cylinder 3 and the arc-shaped pad 11 have two arc-shaped contact surfaces. The arc-shaped fixing clip 4 is detachably connected to the central crossbeam 2. The inner arc surface of the arc-shaped fixing clip 4 matches the outer diameter of the forklift cylinder 3. The arc-shaped pad 11 and the arc-shaped fixing clip 4 form a three-point contact for full enclosure fixing of the forklift cylinder 3. The structure is stable and the fixing is simple. The arc-shaped fixing clip 4 is fixed to the central crossbeam 2 by bolts 9, which makes disassembly and assembly simple and parts replacement convenient. Specifically, it can be as follows: Figure 2 As shown.

[0034] In this embodiment, in order to connect the cylinder bottom column 6 at the bottom of the forklift cylinder 3 to the support plate 10, a through hole is provided in the center of the support plate 10, and a connecting column 8 is provided in the center of the side of the cylinder bottom column 6 away from the forklift cylinder 3. The connecting column 8 is installed in the through hole so that the cylinder bottom column 6 and the support column can be connected.

[0035] In this embodiment, to install the connecting post 8 in the through hole of the support plate 10, the diameter of the connecting post 8 is smaller than the diameter of the through hole, and the length of the connecting post 8 is greater than the depth of the through hole. The connecting post 8 is fixed to the support plate 10 by fasteners 40. By setting the length of the connecting post 8 to be greater than the depth of the through hole, a small radial gap is left between the connecting post 8 and the support post, so that the forklift cylinder 3 can automatically return to its original position after being subjected to force, and the cylinder will not be damaged or leak oil due to jamming.

[0036] In this embodiment, in order for the fastener 40 to connect the connecting post 8 and the support plate 10, a threaded hole is provided at the center of the side of the connecting post 8 near the support plate 10. The fastener 40 includes a bolt 9, which is connected to the connecting post 8 by cooperating with the threaded hole.

[0037] In this embodiment, to prevent the forklift cylinder 3 from detaching upwards from the support plate 10, the fastener 40 also includes a baffle 5, which is sleeved on the bolt 9. The diameter of the baffle 5 is larger than the diameter of the through hole to prevent the forklift cylinder 3 from detaching upwards from the support plate 10. Specifically, it can be as follows: Figure 5 and Figure 6 As shown.

[0038] In this embodiment, the central crossbeam 2 can be fixed at different positions on the inner mast 1 of the forklift, and can be adapted to forklift cylinders 3 of different lengths, so as to better fix the forklift cylinders 3.

[0039] On the other hand, this utility model also provides a forklift, which includes a forklift body and a mounting and fixing mechanism as described above, wherein the mounting and fixing mechanism is used to fix the forklift cylinder 3 on the forklift body. The mounting and fixing mechanism can be as follows: Figures 1 to 6 As shown. In this Figures 1 to 4 The mounting and fixing mechanism includes a cylinder body fixing assembly 20 and a cylinder bottom fixing assembly 30. The cylinder body fixing assembly 20 is connected to the inner mast 1 of the forklift and is used to fix the forklift cylinder 3 to limit its horizontal movement. The cylinder bottom fixing assembly 30 is located at the bottom of the cylinder body fixing assembly 20 and is used to contact the bottom of the forklift cylinder 3 to support it. The cylinder bottom fixing assembly 30 includes a cylinder bottom post 6 and a support plate 10. The cylinder bottom post 6 is connected to the bottom of the forklift cylinder 3, and the side of the cylinder bottom post 6 away from the forklift cylinder 3 is an outer spherical surface. The support plate 10 is located at the bottom of the cylinder bottom post 6 and is fixedly connected to the bottom crossbeam of the inner mast 1 of the forklift. The side of the support plate 10 near the cylinder bottom post 6 is an inner spherical surface, and the outer spherical surface can slide within the inner spherical surface. Two support brackets 7 are provided at the bottom of the support plate 10 to support it. By matching the outer spherical surface of the cylinder bottom column 6 and the inner spherical surface of the support plate 10, it can be ensured that the outer spherical surface can slide in the inner spherical surface when the forklift cylinder 3 is tilted, so that the cylinder has the flexibility to automatically return to its original position. The forklift cylinder 3 and the support plate 10 can have better contact and force distribution, preventing the cylinder from being stuck and causing damage to the cylinder seals and oil leakage.

[0040] In this embodiment, the cylinder fixing assembly 20 includes a central crossbeam 2 and an arc-shaped fixing clip 4. The central crossbeam 2 is connected to the inner mast 1 of the forklift. An arc-shaped groove is provided on the side of the central crossbeam 2 near the forklift cylinder 3. An arc-shaped pad 11 matching the outer diameter of the forklift cylinder 3 is provided in the arc-shaped groove for fixing the forklift cylinder 3. The arc-shaped pad 11 has a groove in the middle, so that the forklift cylinder 3 and the arc-shaped pad 11 have two arc-shaped contact surfaces. The arc-shaped fixing clip 4 is detachably connected to the central crossbeam 2. The inner arc surface of the arc-shaped fixing clip 4 matches the outer diameter of the forklift cylinder 3. The arc-shaped pad 11 and the arc-shaped fixing clip 4 form a three-point contact for full enclosure fixing of the forklift cylinder 3. The structure is stable and the fixing is simple. The arc-shaped fixing clip 4 is fixed to the central crossbeam 2 by bolts 9, which makes disassembly and assembly simple and parts replacement convenient. Specifically, it can be as follows: Figure 2 As shown.

[0041] In this embodiment, in order to connect the cylinder bottom column 6 at the bottom of the forklift cylinder 3 to the support plate 10, a through hole is provided in the center of the support plate 10, and a connecting column 8 is provided in the center of the side of the cylinder bottom column 6 away from the forklift cylinder 3. The connecting column 8 is installed in the through hole so that the cylinder bottom column 6 and the support column can be connected.

[0042] In this embodiment, to install the connecting post 8 in the through hole of the support plate 10, the diameter of the connecting post 8 is smaller than the diameter of the through hole, and the length of the connecting post 8 is greater than the depth of the through hole. The connecting post 8 is fixed to the support plate 10 by fasteners 40. By setting the length of the connecting post 8 to be greater than the depth of the through hole, a small radial gap is left between the connecting post 8 and the support post, so that the forklift cylinder 3 can automatically return to its original position after being subjected to force, and the cylinder will not be damaged or leak oil due to jamming.

[0043] In this embodiment, in order for the fastener 40 to connect the connecting post 8 and the support plate 10, a threaded hole is provided at the center of the side of the connecting post 8 near the support plate 10. The fastener 40 includes a bolt 9, which is connected to the connecting post 8 by cooperating with the threaded hole.

[0044] In this embodiment, to prevent the forklift cylinder 3 from detaching upwards from the support plate 10, the fastener 40 also includes a baffle 5, which is sleeved on the bolt 9. The diameter of the baffle 5 is larger than the diameter of the through hole to prevent the forklift cylinder 3 from detaching upwards from the support plate 10. Specifically, it can be as follows: Figure 5 and Figure 6 As shown.

[0045] In this embodiment, the central crossbeam 2 can be fixed at different positions on the inner mast 1 of the forklift, and can be adapted to forklift cylinders 3 of different lengths, so as to better fix the forklift cylinders 3.

[0046] Through the above technical solution, this utility model provides a mounting and fixing mechanism for a forklift cylinder 3 and a forklift. The cylinder body fixing assembly 20 is connected to the inner mast 1 of the forklift to fix the forklift cylinder 3 and limit its horizontal movement. The cylinder bottom fixing assembly 30 is located at the bottom of the cylinder body fixing assembly 20 and contacts the bottom of the forklift cylinder 3 to support it. A cylinder bottom post 6 is provided at the bottom of the forklift, with the side of the cylinder bottom post 6 away from the forklift cylinder 3 being an outer spherical surface. A support plate 10 is provided at the bottom of the cylinder bottom post 6 and at the fixed connection point with the bottom crossbeam of the inner mast 1 of the forklift. The side of the support plate 10 near the cylinder bottom post 6 is an inner spherical surface, and the outer spherical surface can slide within the inner spherical surface. This utility model has a simple structure, few parts, and occupies little installation space. The spherical surfaces of the cylinder bottom post 6 and the support plate 10 cooperate to improve the overall stress distribution of the forklift cylinder 3 and the support plate 10, making disassembly and maintenance convenient.

[0047] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention. This includes combining various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A mounting and fixing mechanism for a forklift cylinder, characterized in that, The installation and fixing mechanism includes: A cylinder body fixing assembly is connected to the inner mast of the forklift and is used to fix the forklift cylinder to limit the horizontal movement of the forklift cylinder; A cylinder bottom fixing assembly, disposed at the bottom of the cylinder body fixing assembly, is used to contact the bottom of the forklift cylinder to support the forklift cylinder, and includes: A cylinder bottom post is used to connect to the bottom of the forklift cylinder, and the side of the cylinder bottom post away from the forklift cylinder is an outer spherical surface; A support plate is disposed at the bottom of the cylinder bottom column and fixedly connected to the bottom crossbeam of the forklift inner mast. The side of the support plate near the cylinder bottom column is an inner spherical surface, and the outer spherical surface can slide within the inner spherical surface.

2. The installation and fixing mechanism according to claim 1, characterized in that, The cylinder block fixing assembly includes: The middle crossbeam is connected to the inner mast of the forklift. An arc-shaped groove is provided on the side of the middle crossbeam near the forklift cylinder. An arc-shaped pad matching the outer diameter of the forklift cylinder is provided in the arc-shaped groove for fixing the forklift cylinder.

3. The installation and fixing mechanism according to claim 2, characterized in that, The cylinder block fixing assembly also includes: An arc-shaped fixing clip is detachably connected to the central crossbeam. The inner arc surface of the arc-shaped fixing clip matches the outer diameter of the forklift cylinder and is used to cooperate with the arc-shaped pad to fix the forklift cylinder.

4. The installation and fixing mechanism according to claim 1, characterized in that, The support plate has a through hole at its center, and the cylinder bottom column has a connecting column at its center on the side away from the forklift cylinder. The connecting column is installed in the through hole.

5. The installation and fixing mechanism according to claim 4, characterized in that, The diameter of the connecting post is smaller than the diameter of the through hole, the length of the connecting post is greater than the depth of the through hole, and the connecting post is fixed to the support plate by fasteners.

6. The installation and fixing mechanism according to claim 5, characterized in that, The connecting column has a threaded hole at its center on the side near the support plate, and the fastener includes a bolt, which is connected to the connecting column by cooperating with the threaded hole.

7. The installation and fixing mechanism according to claim 6, characterized in that, The fastener also includes a baffle plate, which is fitted onto the bolt, and the diameter of the baffle plate is larger than the diameter of the through hole.

8. The installation and fixing mechanism according to claim 2, characterized in that, The central crossbeam can be fixed at different positions on the forklift's inner mast.

9. A forklift, characterized in that, The forklift includes a forklift body and a mounting and fixing mechanism as described in any one of claims 1 to 8, wherein the mounting and fixing mechanism is used to fix the forklift cylinder on the forklift body.

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