Guide wheel adjusting structure with jacking mechanism

Abstract

The invention belongs to the technical field of forklifts, and particularly discloses a guide wheel adjusting structure with a jacking mechanism, which comprises a frame, two guide wheel parts are detachably arranged on the frame, and the two guide wheel parts are oppositely arranged and symmetrically arranged on two sides of the lower end of the front side surface of the frame; the guide wheel component comprises a guide wheel support, a guide wheel connecting piece and a guide wheel arranged at the lower end of the outer portion of the guide wheel connecting piece in a sleeving mode. According to the guide wheel adjusting structure with the jacking mechanism, the two guide wheel components detachably arranged on the vehicle frame and the guide wheel connecting piece detachably arranged in the mounting hole of the guide wheel support are adopted, so that the mounting distance between the two guide wheel components can be adjusted according to actual mounting requirements, and the guide wheel adjusting structure is convenient to use. The mounting height of the guide wheel connecting piece is adjusted, so that the mounting height of the guide wheel can be adjusted, rails of different width specifications can be adapted or transportation requirements can be met, and normal operation of a forklift is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of forklifts, and in particular to a guide wheel adjustment structure with a tightening mechanism. Background Art

[0002] Currently, in the field of warehouse logistics automation, narrow-aisle forklifts generally use mechanical guide rail navigation to operate within the aisles. This navigation system utilizes fixed mechanical guide rails installed within the racking aisles and guide wheel assemblies positioned on either side of the forklift body. The contact between the guide wheels and the guide rails constrains the vehicle's trajectory, allowing the forklift to move forward or backward along a predetermined path.

[0003] A common technical flaw in existing technologies is that the guide wheel assembly's structural design often adopts a fixed configuration, with neither the outer spacing (wheelbase) nor the installation height adjustable. This rigid structure not only results in a lack of parameter adjustment during installation and commissioning, but also exposes significant structural stability issues during long-term use. Frequent mechanical impacts during cargo handling operations can cause the guide wheels to experience axial or vertical displacement, leading to systemic failures such as reduced navigation accuracy and trajectory deviation. Ultimately, this leads to technical challenges such as reduced operational efficiency and increased maintenance costs.

[0004] In summary, the guide wheel assembly in the prior art has problems such as the guide wheel track and installation height cannot be adjusted and the structural stability is insufficient. Summary of the Invention

[0005] The present invention provides a guide wheel adjustment structure with a tightening mechanism, which can solve the problems in the prior art of guide wheel assemblies that the guide wheel track and installation height cannot be adjusted and the structural stability is insufficient.

[0006] A guide wheel adjustment structure with a tightening mechanism comprises a vehicle frame, wherein the vehicle frame is detachably provided with two guide wheel components, the two guide wheel components are arranged opposite to each other and symmetrically arranged on both sides of the lower end of the front side surface of the vehicle frame;

[0007] The guide wheel component includes a guide wheel bracket, a guide wheel connector and a guide wheel mounted on the lower end of the guide wheel connector. The guide wheel bracket is arranged on the vehicle frame. A mounting hole is opened on the top surface of the guide wheel bracket. The upper end of the guide wheel connector is detachably arranged in the mounting hole.

[0008] Furthermore, the guide wheel connecting member includes a first shaft segment and a second shaft segment provided at the lower end of the first shaft segment;

[0009] The axis of the second shaft section is coaxially arranged with the axis of the guide wheel;

[0010] The first shaft section is fitted into a mounting hole on the guide wheel bracket.

[0011] Furthermore, the axis of the first shaft segment is parallel to the axis of the second shaft segment.

[0012] Furthermore, the left side of the guide wheel bracket is also provided with an adjustment slot connected to the mounting hole;

[0013] A first threaded hole matching the adjustment slot is provided on the front side of the guide wheel bracket, and a first locking bolt is provided in the first threaded hole.

[0014] Furthermore, a first avoidance gap is provided at the right end of the front side surface of the guide wheel bracket.

[0015] Furthermore, a second avoidance gap is provided at the left end of the rear side surface of the guide wheel bracket.

[0016] Furthermore, the guide wheel bracket is provided with at least two groups of threaded holes along its length direction;

[0017] The threaded hole group includes a plurality of second threaded holes linearly arranged along the height direction of the guide wheel bracket;

[0018] A second bolt is provided in the second threaded hole;

[0019] A waist-shaped hole is provided on the frame at a position corresponding to the second threaded hole;

[0020] The guide wheel bracket and the vehicle frame are connected and fixed by threaded cooperation between a second bolt passing through the waist-round hole and the second threaded hole.

[0021] Furthermore, in each group of threaded holes, the number of the second threaded holes is not less than two.

[0022] Furthermore, a mounting notch is provided on the frame, and a connecting baffle is provided on the inner side wall of the frame near the mounting notch;

[0023] An extension mounting plate is provided at the right end of the rear side of the guide wheel bracket, and the extension mounting plate is arranged in the mounting notch;

[0024] The extension mounting plate is detachably connected to the connecting baffle.

[0025] Furthermore, the extension mounting plate is detachably connected to the connecting baffle by bolts.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention provides a guide wheel adjustment structure with a tightening mechanism, which adopts two guide wheel components detachably provided on the frame and a guide wheel connector detachably provided in the mounting hole of the guide wheel bracket. Therefore, the installation spacing between the two guide wheel components and the installation height of the guide wheel connector can be adjusted according to actual installation requirements, thereby adjusting the installation height of the guide wheel, adapting to tracks of different width specifications or transportation requirements, and ensuring the normal operation of the forklift.

[0028] 2. In the present invention, due to the use of two guide wheel components that are detachably arranged on the frame and the guide wheel connector that is detachably arranged in the mounting hole of the guide wheel bracket, a single component can be replaced independently when it is damaged, avoiding the scrapping of the entire guide wheel component and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] Figure 1 A schematic diagram of the installation structure of the guide wheel component and the vehicle frame provided by the present invention;

[0031] Figure 2 A schematic structural diagram of the guide wheel component provided by the present invention;

[0032] Figure 3 A schematic diagram of the partial structure of the guide wheel component provided by the present invention;

[0033] Figure 4 Rear view of the installation structure of the guide wheel component and the frame provided by the present invention

[0034] Figure 5 This is a partial schematic diagram of the installation structure of the guide wheel component and the frame provided by the present invention.

[0035] Explanation of the reference numerals: 100, frame; 200, guide wheel component; 1, guide wheel bracket; 2, guide wheel connector; 5, guide wheel; 11, mounting hole; 12, adjustment slot; 13, first threaded hole; 14, first locking bolt; 15, first avoidance gap; 16, second avoidance gap; 17, threaded hole group; 18, second bolt; 19, extended mounting plate; 21, first shaft section; 22, second shaft section; 171, second threaded hole; 101, waist round hole; 102, mounting gap; 103, connecting baffle. DETAILED DESCRIPTION

[0036] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0037] like Figures 1 to 5 As shown, the present invention provides a guide wheel adjustment structure with a tightening mechanism, comprising:

[0038] Frame 100;

[0039] Two guide wheel components 200 are provided. The two guide wheel components 200 are arranged opposite to each other and symmetrically arranged on both sides of the lower end of the front side of the frame 100. The guide wheel components 200 are detachably mounted on the frame 100;

[0040] The guide wheel component 200 includes a guide wheel bracket 1, a guide wheel connector 2 detachably disposed in the guide wheel bracket 1, and a guide wheel 5 mounted on the guide wheel connector 2, wherein the guide wheel bracket 1 is disposed on the vehicle frame 100;

[0041] Specifically, the guide wheel bracket 1 is provided with at least two sets of threaded hole groups 17 along its length; the threaded hole groups 17 include a plurality of second threaded holes 171 linearly arranged along the height direction of the guide wheel bracket 1; second bolts 18 are installed in the second threaded holes 171; and a waist-shaped hole 101 is opened on the frame 100 at a position corresponding to the second threaded holes 171;

[0042] The guide wheel bracket 1 is fixed to the vehicle frame 100 by means of a second bolt 18 passing through the waist-shaped hole 101 and threadedly engaged with the second threaded hole 171;

[0043] Since the frame 100 has a waist-shaped hole 101 at a position corresponding to the second threaded hole 171, during the actual installation process, the special-shaped structure of the waist-shaped hole 101 and the second threaded hole 171 form an axial displacement compensation mechanism, allowing the installation position of the guide wheel bracket 1 to be adjusted within a certain range, thereby achieving adjustment of the distance between the two guide wheel components 200; in addition, the second bolt 18 and the second threaded hole 171 are threadedly matched, and the second bolt 18 is passed through the waist-shaped hole 101 to connect and fix the guide wheel bracket 1 to the frame 100, thereby ensuring the connection strength and forming a mechanical self-locking.

[0044] In addition, a mounting hole 11 is formed on the top surface of the guide wheel bracket 1. The outer upper end of the guide wheel connector 2 is detachably mounted in the mounting hole 11. Specifically, the guide wheel connector 2 includes a first shaft segment 21 and a second shaft segment 22 that are fixedly connected. The first shaft segment 21 is located on top of the second shaft segment 22. The axis of the second shaft segment 22 is coaxial with the axis of the guide wheel 5.

[0045] The first shaft section 21 is fitted into the mounting hole 11;

[0046] The left side of the guide wheel bracket 1 is further provided with an adjustment slot 12 connected to the mounting hole 11; the front side of the guide wheel bracket 1 is provided with a first threaded hole 13 that matches the adjustment slot 12, and a first locking bolt 14 is provided in the first threaded hole 13;

[0047] The above arrangement, through the coordinated action of the adjustment slot 12 and the first locking bolt 14, creates a unique clamp-type locking mechanism. This structure secures the guide wheel connector 2 in the locked state. After loosening the first locking bolt 14, the guide wheel connector 2 can achieve 360° rotation and vertical adjustment within the mounting hole 11, significantly improving the equipment's adaptability to diverse operating conditions.

[0048] like Figures 1 to 5 As shown, in some embodiments of the present invention, the axis of the first shaft segment 21 and the axis of the second shaft segment 22 are parallel;

[0049] Since the axis of the first shaft section 21 and the axis of the second shaft section 22 are parallel, that is, the double shaft sections adopt a parallel eccentric structure design, and since the axis of the second shaft section 22 is coaxially arranged with the axis of the guide wheel 5, based on the above, the spatial posture of the working surface of the guide wheel 5 can be adjusted in a three-dimensional compensation manner, and the outer distance of the guide wheel can be adjusted.

[0050] Specifically, if Figure 1 As shown, the distance between the two guide wheel components 200 is marked as L;

[0051] When the frame 100 is placed on the ground, the guide wheel component 200 is installed on the frame 100, and the distance between the guide wheel 5 and the ground is H;

[0052] Based on the setting of the waist-round hole 101 on the frame 100, L can be adjusted. After L is adjusted, if L does not fully meet the design requirements, the guide wheel connector 2 can be freely rotated in the mounting hole 11 to adjust the eccentric direction, thereby achieving L adjustment;

[0053] In addition, according to the H requirement, the guide wheel connector 2 is adjusted up and down to achieve the required guide wheel height. After the height is adjusted, it is locked with the first locking bolt 14.

[0054] like Figures 1 to 5 As shown, in some embodiments of the present invention, a first avoidance gap 15 is opened at the right end of the front side of the guide wheel bracket 1;

[0055] A second avoidance gap 16 is provided at the left end of the rear side of the guide wheel bracket 1;

[0056] The first avoidance gap 15 and the second avoidance gap 16 are provided based on the installation position of the guide wheel bracket 1 and the vehicle frame 100 so that when the guide wheel bracket 1 is installed on the vehicle frame 100, the installation of other components on the vehicle frame 100 is not affected;

[0057] Specifically, the first and second clearance gaps 15 and 16 are specifically designed based on the assembly interface between the guide wheel bracket 1 and the vehicle frame 100, ensuring a precise spatial complementarity between the two during installation. This design effectively resolves the layout interference issues of the original functional components of the vehicle frame 100 (such as pipelines, welds, or reinforcements) by avoiding local contours, ensuring that the assembly process of the guide wheel bracket 1 does not require secondary processing or structural compromise of the vehicle frame 100.

[0058] The design of the avoidance gap is based on the vehicle frame 100. While enabling quick positioning and installation of the guide wheel bracket 1, it also fully preserves the pre-set assembly points and functional areas around the vehicle frame 100. This prevents the installation space of adjacent components (such as sensors, brake components, or suspension connectors) from being encroached upon by the addition of new components, thus ensuring the integrity and scalability of the overall modular architecture of the vehicle frame 100.

[0059] Through the pre-formed design that avoids the notch, the guide wheel bracket 1 can be directly adapted to the existing structure of the vehicle frame 100 without the need for additional adjustment gaskets, transition connectors, or on-site repair processes. This significantly reduces assembly complexity and production time costs, while also reducing the risk of rework due to assembly conflicts.

[0060] The avoidance gap profile can be designed with stress-guided optimization. While avoiding the key areas, the local stiffness loss is compensated through arc transition or reinforced flange structure to ensure that the connection node between the guide wheel bracket 1 and the frame 100 still meets the strength and fatigue life requirements under dynamic load conditions.

[0061] like Figures 1 to 5 As shown, in some embodiments of the present invention, in each threaded hole group 17, the number of the second threaded holes 171 is not less than two;

[0062] At least two second threaded holes 171 are provided. Multiple threaded hole groups 17 form an array layout, allowing each threaded hole to simultaneously share the load stress at the connection point, creating a distributed force system. Compared to traditional single-hole structures, this improves axial load-bearing capacity and effectively prevents connection failure caused by stress concentration. While maintaining connection rigidity, it also provides the connection with superior dynamic response characteristics and long-term reliability.

[0063] like Figures 1 to 5 As shown, in some embodiments of the present invention, a mounting notch 102 is provided on the vehicle frame 100 , and a connecting baffle 103 is fixedly provided on the inner side wall of the vehicle frame 100 near the mounting notch 102 ;

[0064] An extension mounting plate 19 is provided at the right end of the rear side of the guide wheel bracket 1, and the extension mounting plate 19 is arranged in the mounting notch 102;

[0065] The installation notch 102 allows the extension mounting device 19 to be placed inside the installation notch 102 and to move left and right inside the installation notch 102. Therefore, when the distance between the two guide wheel components 200 is adjusted through the waist-shaped hole 101, the installation notch 102 can play a preliminary role in limiting the vertical direction of the guide wheel components 200, that is, ensuring that the guide wheel components 200 move in the horizontal direction without deviating up and down.

[0066] The extended mounting plate 19 is detachably connected to the connecting baffle 103;

[0067] The extension mounting plate 19 is detachably connected to the connecting baffle 103 by bolts;

[0068] The detachable design of the extended mounting plate 19 and the connecting baffle 103 improves assembly efficiency, supports individual replacement of worn parts, and reduces maintenance costs.

[0069] The present invention provides a guide wheel adjustment structure with a tightening mechanism, and the adjustment process is as follows:

[0070] After assembling the guide wheel connector 2 and the guide wheel 5, install the first shaft section 21 on the guide wheel connector 2 into the mounting hole 11, and use the first locking bolt 14 to lock the guide wheel connector 2 into the mounting hole 11. Then, assemble the guide wheel bracket 1 to both sides of the lower end of the front side of the forklift frame 100. Specifically, install the extended mounting plate 19 into the mounting notch 102. According to the preset L requirement, adjust the position of the guide wheel bracket 1 on the forklift frame 100. After the adjustment is completed, use the second bolt 18 to connect and fix the guide wheel bracket 1 to the frame 100, and connect and fix the extended mounting plate 19 to the connecting baffle 103 by bolt connection.

[0071] If there is a deviation in L after the above adjustment, the first locking bolt 14 can be loosened to allow the guide wheel connector 2 to rotate freely in the mounting hole 11. Due to the eccentric design of the guide wheel connector 2, the purpose of fine-tuning L can be achieved;

[0072] In addition, the height H can be adjusted by loosening the first locking bolt 14 and then raising and lowering the guide wheel connector 2 in the mounting hole 11. After the height is adjusted, the first locking bolt 14 can be tightened again.

[0073] The present invention provides a guide wheel adjustment structure with a tightening mechanism, which adopts two guide wheel components 200 that are detachably arranged on the frame 100, and a guide wheel connector 2 that is detachably arranged in the mounting hole 11 of the guide wheel bracket 1, so that the installation spacing between the two guide wheel components 200 and the installation height of the guide wheel connector 2 can be adjusted according to actual installation requirements, thereby adjusting the installation height of the guide wheel 5. It can adapt to tracks of different width specifications or transportation requirements, ensure the normal operation of the forklift, and thus solve the problems in the prior art of the guide wheel assembly that the guide wheel track and installation height cannot be adjusted and the structural stability is insufficient.

[0074] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A guide wheel adjustment structure with a tightening mechanism, comprising a frame (100), characterized in that: The frame (100) is detachably provided with two guide wheel components (200), the two guide wheel components (200) being arranged opposite to each other and symmetrically arranged on both sides of the lower end of the front side surface of the frame (100); The guide wheel component (200) comprises a guide wheel bracket (1), a guide wheel connector (2), and a guide wheel (5) sleeved on the outer lower end of the guide wheel connector (2); the guide wheel bracket (1) is arranged on the vehicle frame (100); a mounting hole (11) is provided on the top surface of the guide wheel bracket (1); and the outer upper end of the guide wheel connector (2) is detachably arranged in the mounting hole (11).

2. The guide wheel adjustment structure with a tightening mechanism according to claim 1, characterized in that: The guide wheel connecting member (2) comprises a first shaft section (21) and a second shaft section (22) provided at the lower end of the first shaft section (21); The axis of the second shaft section (22) is coaxially arranged with the axis of the guide wheel (5); The first shaft section (21) is fitted into a mounting hole (11) on the guide wheel bracket (1).

3. The guide wheel adjustment structure with a tightening mechanism according to claim 2, characterized in that: The axis of the first shaft section (21) and the axis of the second shaft section (22) are parallel.

4. The guide wheel adjustment structure with a tightening mechanism according to claim 2, characterized in that: The left side of the guide wheel bracket (1) is also provided with an adjustment slot (12) connected to the mounting hole (11); A first threaded hole (13) matching the adjustment slot (12) is provided on the front side of the guide wheel bracket (1), and a first locking bolt (14) is provided in the first threaded hole (13).

5. The guide wheel adjustment structure with a tightening mechanism according to claim 1, characterized in that: A first avoidance gap (15) is provided at the right end of the front side of the guide wheel bracket (1).

6. The guide wheel adjustment structure with a tightening mechanism according to claim 1, characterized in that: A second avoidance notch (16) is provided at the left end of the rear side surface of the guide wheel bracket (1).

7. The guide wheel adjustment structure with a tightening mechanism according to claim 1, characterized in that: The guide wheel bracket (1) is provided with at least two groups of threaded holes (17) along its length direction; The threaded hole group (17) includes a plurality of second threaded holes (171) linearly arranged along the height direction of the guide wheel bracket (1); A second bolt (18) is provided in the second threaded hole (171); A waist-shaped hole (101) is provided on the vehicle frame (100) at a position corresponding to the second threaded hole (171); The guide wheel bracket (1) and the vehicle frame (100) are connected and fixed by threaded cooperation between a second bolt (18) passing through the waist-shaped hole (101) and a second threaded hole (171).

8. The guide wheel adjustment structure with a tightening mechanism according to claim 7, characterized in that: In each group of threaded holes (17), the number of the second threaded holes (171) is no less than two.

9. The guide wheel adjustment structure with a tightening mechanism according to claim 1, characterized in that: The frame (100) is provided with a mounting notch (102), and a connecting baffle (103) is provided on the inner side wall of the frame (100) near the mounting notch (102); An extension mounting plate (19) is provided at the right end of the rear side of the guide wheel bracket (1), and the extension mounting plate (19) is arranged in the mounting notch (102); The extension mounting plate (19) is detachably connected to the connecting baffle (103).

10. The guide wheel adjustment structure with a tightening mechanism according to claim 9, characterized in that: The extension mounting plate (19) is detachably connected to the connecting baffle (103) via bolts.

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