A driving wheel beam support device for a forward-moving forklift

Abstract

The utility model discloses a driving wheel beam supporting device for a reach-forklift, comprising a connecting mechanism arranged at the upper rear end of the driving wheel beam of the reach-forklift and a clamping mechanism arranged at the upper front end of the driving wheel beam of the reach-forklift, and both the connecting mechanism and the clamping mechanism are connected to the driving wheel beam and the frame of the reach-forklift, the clamping mechanism is used to clamp the driving wheel beam downward to avoid the driving wheel beam from vibrating up and down, thereby reducing the shearing effect on the connecting screws connected between the driving wheel beam and the frame of the reach-forklift; the connecting mechanism is used to increase the connecting fulcrum between the driving wheel beam and the frame to increase the force-bearing area of ​​the driving wheel beam, thereby reducing the force on the connecting screws connected between the driving wheel beam and the frame. The utility model has the advantages of increasing the force-bearing area of ​​the driving wheel beam and reducing the risk of the connecting screws breaking.

Description

Technical Field

[0001] The utility model relates to the technical field of reach-type forklifts, in particular to a drive wheel crossbeam supporting device for reach-type forklifts. Background Art

[0002] In the existing reach forklift, the driving wheel beam 100 is generally connected to the frame 300 only by two connecting screws 200. Figure 1 and Figure 2 As shown. This method of connecting the driving wheel beam and the frame will have the following problems during actual application: the connecting screws 200 will often break. The main reason for this problem is that the driving wheel beam 100 is connected to the frame 300 only by two connecting screws 200. During the driving of the forklift, all the forces acting on the driving wheel beam 100 will be concentrated on the two connecting screws 200, causing the connecting screws 200 to be subjected to a large vertical shear force. The force-bearing surface of the two connecting screws 200 is very small relative to the driving wheel beam 100. The driving wheel beam 100 is subjected to a large force when the forklift forks are lifted. This force will be directly transmitted to the connecting screws 200. Therefore, it is very easy to cause the connecting screws 200 to break. Utility Model Content

[0003] The utility model aims to provide a driving wheel crossbeam supporting device for a reach-forklift, which is used to solve the technical problems existing in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A driving wheel beam supporting device for a reach forklift, comprising a connecting mechanism arranged at the upper portion of the rear end of the driving wheel beam of the reach forklift and a clamping mechanism arranged at the upper portion of the front end of the driving wheel beam of the reach forklift, wherein both the connecting mechanism and the clamping mechanism are connected to the driving wheel beam and a frame of the reach forklift, wherein the clamping mechanism is used to clamp the driving wheel beam downward to prevent the driving wheel beam from vibrating up and down, thereby reducing the shearing effect on the connecting screws connecting the driving wheel beam of the reach forklift and the frame; wherein the connecting mechanism is used to increase the connecting fulcrum between the driving wheel beam and the frame, thereby increasing the force-bearing area of ​​the driving wheel beam, thereby reducing the force on the connecting screws connecting the driving wheel beam and the frame.

[0006] Furthermore, the driving wheel beam support device of the reach forklift further includes an elastic support member arranged between the clamping mechanism and the driving wheel beam.

[0007] Furthermore, the connecting mechanism includes a horizontal connecting plate, two vertical connecting plates and two fastening screws. The horizontal connecting plate is arranged at the upper part of the rear end of the driving wheel beam and is movably supported on the frame of the reach forklift to provide a support point for the driving wheel beam to be subjected to downward force. The two vertical connecting plates are arranged at the lower part of the horizontal connecting plate and are symmetrically arranged on the left and right sides of the upper part of the rear end of the driving wheel beam and are both connected to the driving wheel beam. The two fastening screws are correspondingly penetrated through the middle parts of the two vertical connecting plates and are used to connect the two vertical connecting plates to the frame of the reach forklift.

[0008] Furthermore, the clamping mechanism includes a first clamping member, a second clamping member, a third clamping member, an adjusting member and a connecting member, the first clamping member is crimped onto the upper front end portion of the driving wheel cross beam, the second clamping member is arranged on the upper portion of the first clamping member, the third clamping member is arranged on the upper portion of the second clamping member, the adjusting member is arranged on the upper portion of the third clamping member, the connecting member is arranged on the adjusting member for connecting to the frame of the reach forklift, and the elastic support member is arranged at the lower portion of the first clamping member for playing a shock absorbing and buffering role.

[0009] Furthermore, the adjusting member includes an adjusting bolt, an adjusting nut and a fixing nut. The upper end of the adjusting bolt is fixedly connected to the connecting member, and the lower end is threadedly connected to the adjusting nut and the fixing nut in turn. The fixing nut is fixedly connected to the third clamping member.

[0010] Furthermore, the elastic support member is a sponge plate, a sponge strip, a rubber plate or a rubber strip.

[0011] Compared with the prior art, the advantages of the utility model are as follows: by adding corresponding connecting mechanisms and clamping mechanisms to the front and rear ends of the driving wheel cross beam respectively, and through the cooperation between the connecting mechanism and the clamping mechanism, corresponding support points are added to the driving wheel cross beam, so that the force-bearing area of ​​the driving wheel cross beam is increased, thereby effectively reducing the force on the connecting screws, and further reducing the risk of screw breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution in this embodiment, the following is a brief introduction to the drawings required for use in the description of the embodiment. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the connection between the driving wheel crossbeam and the frame of an existing reach forklift;

[0014] Figure 2 It is a schematic diagram of the driving wheel beam structure of an existing reach forklift;

[0015] Figure 3 It is a schematic diagram of an embodiment of a driving wheel beam support device for a reach-forklift provided by the utility model;

[0016] Figure 4 yes Figure 3 A partial exploded view of

[0017] Figure 5 It is a schematic diagram of another embodiment of the driving wheel crossbeam supporting device of a reach-forklift provided by the utility model;

[0018] Figure 6 yes Figure 5 A partial exploded view of

[0019] Figure 7 yes Figure 3 or Figure 5 A schematic diagram of the connection between the connecting mechanism and the driving wheel crossbeam in the embodiment;

[0020] Figure 8 yes Figure 8 A partial exploded view of

[0021] Fig. 9 It is a structural schematic diagram of the clamping mechanism;

[0022] Fig.10 It is an exploded view of the clamping mechanism;

[0023] Explanation of the reference numerals in the accompanying drawings: 100, driving wheel crossbeam; 200, connecting screws; 300, frame; 400, connecting mechanism; 401, horizontal connecting plate; 402, vertical connecting plate; 403, fastening screws; 500, clamping mechanism; 501, first clamping member; 502, second clamping member; 503, third clamping member; 504, adjusting member; 505, connecting member; 600, elastic supporting member. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following further describes how the present invention is implemented in conjunction with the accompanying drawings and specific implementation methods.

[0025] See also Figure 3 and Figure 4The utility model provides a driving wheel beam supporting device for a reach forklift, comprising a connecting mechanism 400 disposed at the upper rear end of the driving wheel beam 100 of the reach forklift and a clamping mechanism 500 disposed at the upper front end of the driving wheel beam 100 of the reach forklift, and the connecting mechanism 400 and the clamping mechanism 500 are both connected to the driving wheel beam 100 and the frame 300 of the reach forklift, and the clamping mechanism 500 is used to clamp the driving wheel beam 100 downward to prevent the driving wheel beam 100 from The connecting mechanism 400 is used to increase the connection fulcrum between the driving wheel beam 100 and the frame 300 to increase the force-bearing area of ​​the driving wheel beam 100, thereby reducing the force on the connecting screws 200 connected between the driving wheel beam 100 and the frame 300 and reducing the risk of the connecting screws 200 breaking.

[0026] In order to make the driving wheel cross beam 100 achieve better vibration reduction and buffering effect, as an improved solution of the utility model, refer to Figure 5 and Figure 6 The driving wheel beam supporting device of the reach-forklift provided by the utility model further includes an elastic supporting member 600 arranged between the clamping mechanism 500 and the driving wheel beam 100 .

[0027] Specifically, in this improved solution, the elastic support member 600 can be a rubber plate, a sponge plate, a sponge strip, a rubber strip or any other elastic support member with elastic buffering effect (such as a spring, a shock absorber, etc.). However, as a preferred embodiment of the utility model, the elastic support member 600 is preferably a rubber plate.

[0028] Specifically, in the present invention, as a specific embodiment of the connecting mechanism 400: Figure 7 and Figure 8 The connecting mechanism 400 includes a horizontal connecting plate 401, two vertical connecting plates 402 and two fastening screws 403; wherein the horizontal connecting plate 401 is fixedly arranged at the upper rear end of the driving wheel beam 100, and is movably supported on the frame 300 of the reach forklift, and is used to provide a force support point for the driving wheel beam 100; the two vertical connecting plates 402 are fixedly arranged at the lower part of the horizontal connecting plate 401, and are symmetrically arranged on the left and right sides of the upper rear end of the driving wheel beam 100 and are fixedly connected to the driving wheel beam 100; the two fastening screws 403 are correspondingly penetrated through the middle of the two vertical connecting plates 402, and are used to connect the two vertical connecting plates 402 to the frame 300 of the reach forklift.

[0029] Specifically, in the above embodiment, the horizontal connecting plate 401 and the two vertical connecting plates 402 are fixed together by welding, and the two vertical connecting plates 402 and the driving wheel cross beam 100 are also fixed together by welding; in some other embodiments: the horizontal connecting plate 404 and the vertical connecting plate 402 can also be fixed together by other means, such as bolts. Similarly, the two vertical connecting plates 402 and the driving wheel cross beam 100 can also be fixed together by other means, such as bolts.

[0030] Specifically, in the above embodiment, the horizontal connecting plate 401 is movably overlapped on the frame 300, and the main purpose of the horizontal connecting plate 401 is to provide a support point for the driving wheel beam 100 to bear downward force under the coordination of the clamping mechanism 500, thereby increasing the force area of ​​the driving wheel beam 100, reducing the force on the connecting screws 200, and reducing the risk of the connecting screws 200 breaking. Compared with the prior art that only relies on two connecting screws 200 as the force support points of the driving wheel beam 100, the present utility model adds a connecting mechanism 400 to connect with the frame 300 on the basis of the prior art, and under the coordination of the clamping mechanism 500, the force area of ​​the driving wheel beam 100 is effectively increased, thereby greatly reducing the force on the connecting screws 200, and further reducing the risk of the connecting screws 200 breaking.

[0031] It is understandable that the connection mechanism 400 is not limited to the structure shown in the figure, and it can be adaptively adjusted according to the specific structure of the driving wheel beam 100.

[0032] Specifically, in the present invention, as a specific embodiment of the clamping mechanism 500: Fig. 9 and Fig.10 The clamping mechanism 500 includes a first clamping member 501, a second clamping member 502, a third clamping member 503, an adjusting member 504 and a connecting member 505; wherein the first clamping member 501 is movably crimped to the upper front end portion of the driving wheel cross beam 100, the second clamping member 502 is fixedly arranged on the upper portion of the first clamping member 501, the third clamping member 503 is fixedly arranged on the upper portion of the second clamping member 502, the adjusting member 504 is threadedly arranged on the upper portion of the third clamping member 503, and is used to adjust the upper and lower positions of the connecting member 505, the connecting member 505 is fixedly arranged on the adjusting member 504, and is used to be connected to the frame 300 of the reach forklift, and the elastic support member 600 is arranged at the lower portion of the first clamping member 501, and is used to play a shock absorbing and buffering role.

[0033] Specifically, in the above embodiment, the first pressing member 501 is an arc-shaped plate, which is set in order to better fit the driving wheel driving motor 700 and the driving wheel cross beam 100. It can be understood that the specific structure of the first pressing member 501 can be set according to actual conditions, for example, it can be a rectangular plate or a special-shaped plate.

[0034] Specifically, in the above embodiment, the second pressing member 502 is a rectangular plate. It is understandable that the specific structure of the second pressing member 502 can be set according to actual conditions, for example, it can be an arc-shaped plate.

[0035] Specifically, in the above embodiment, the third pressing member 503 is a round tube. It is understandable that the specific structure of the third pressing member 503 can be set according to actual conditions, for example, it can be a round tube with internal threads.

[0036] Specifically, in the above embodiment, the adjusting member 504 includes an adjusting bolt 504a, an adjusting nut 504b and a fixing nut 504c, the upper end of the adjusting bolt 504a is fixedly connected to the connecting member 505, and the lower end is threadedly connected to the adjusting nut 504b and the fixing nut 504c in sequence, and the fixing nut 504c is fixedly connected to the third pressing member 503. The adjusting bolt 504a can move up and down along the axial direction of the third pressing member 503, thereby driving the connecting member 505 to move up and down.

[0037] It is understandable that the specific structure of the adjusting member 504 can be set according to actual conditions. For example, it is composed of a connecting screw and two connecting nuts; the lower end of the connecting screw is directly threaded into the third clamping member 503 (a round tube with internal threads), and is locked with the third clamping member 503 through a connecting nut, and the upper end is connected to the connecting member 505 through another connecting nut.

[0038] Specifically, in the above embodiment, the connecting member 505 is an L-shaped connecting plate. It is understandable that the specific structure of the connecting member 505 can be set according to actual conditions. For example, it can be a U-shaped connecting plate.

[0039] Specifically, in the above embodiment, the main function of the connecting member 505 is to limit the position, that is, to abut against the upper frame 300 to prevent the clamping mechanism 500 from being pressed above. In addition, in order to ensure the reliability of the connection between the clamping mechanism 500 and the frame 300, the connecting member 505 can also be connected to the frame 300, for example, by tying the connecting member 505 and the frame 300 together through a steel wire.

[0040] The use principle of the driving wheel crossbeam support device of the reach forklift provided by the utility model is as follows:

[0041] When in use, the clamping mechanism 500 will press the driving wheel beam 100 downward, so that the driving wheel beam 100 always maintains a downward fit state with the driving wheel assembly. At the same time, the connecting mechanism 400 will also maintain a downward fit state with the frame 300 under the action of the clamping mechanism 500, so that the force exerted on the driving wheel beam 100 will be borne by the connecting mechanism 400 and the connecting screws 200. Compared with the existing connection method between the driving wheel beam and the frame, the driving wheel beam support device for a reachable forklift provided by the utility model can well reduce the force exerted on the connecting screws 200 by transforming the fixing method of single screws on both sides into the fixing method of double screws on both sides, thereby greatly reducing the risk of the connecting screws 200 breaking. At the same time, the driving wheel beam 100 can be widened by the connecting mechanism 400, thereby greatly increasing the mechanical strength of the driving wheel beam 100.

[0042] It needs to be explained: First, Figure 1 , Figures 3 to 6 The frame 300 shown in the figure is only a local structure of the frame of the reach forklift, which is simplified here mainly for the convenience of description; secondly, the components not described in the drawings (for example: drive wheels, drive wheel drive motors, drive wheel steering motors, large and small steering gears, etc.) are all existing known technologies, and they are not within the scope of protection of the present utility model, so they will not be described in detail.

[0043] Finally, it should be noted that the above description is only an embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the present utility model specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A driving wheel beam support device for a reach-forklift, characterized in that: The invention comprises a connecting mechanism (400) arranged at the upper rear end of a driving wheel beam (100) of a reach forklift and a pressing mechanism (500) arranged at the upper front end of the driving wheel beam (100) of the reach forklift, wherein the connecting mechanism (400) and the pressing mechanism (500) are both connected to the driving wheel beam (100) and a vehicle frame (300) of the reach forklift, and the pressing mechanism (500) is used to press the driving wheel beam (100) downwards to prevent the driving wheel beam (100) from being pressed downwards. The connecting mechanism (400) is used to increase the connection fulcrum between the driving wheel beam (100) and the frame (300) to increase the force-bearing area of ​​the driving wheel beam (100), thereby reducing the force on the connecting screws (200) connecting the driving wheel beam (100) and the frame (300).

2. The driving wheel beam support device for a reach forklift according to claim 1, characterized in that: It also includes an elastic support member (600) arranged between the clamping mechanism (500) and the driving wheel cross beam (100).

3. The driving wheel beam support device for a reach forklift according to claim 1 or 2, characterized in that: The connecting mechanism (400) comprises a horizontal connecting plate (401), two vertical connecting plates (402) and two fastening screws (403); the horizontal connecting plate (401) is arranged at the upper rear end of the driving wheel beam (100) and is movably supported on the frame (300) of the reach forklift, and is used to provide a force support point for the driving wheel beam (100); the two vertical connecting plates (402) are arranged at the lower part of the horizontal connecting plate (401), and are symmetrically arranged on the left and right sides of the upper rear end of the driving wheel beam (100) and are both connected to the driving wheel beam (100); the two fastening screws (403) are correspondingly arranged in the middle of the two vertical connecting plates (402), and are used to connect the two vertical connecting plates (402) to the frame (300) of the reach forklift.

4. The driving wheel beam support device for a reach forklift according to claim 2, characterized in that: The clamping mechanism (500) comprises a first clamping member (501), a second clamping member (502), a third clamping member (503), an adjusting member (504) and a connecting member (505); the first clamping member (501) is crimped to the upper front end of the driving wheel cross beam (100); the second clamping member (502) is arranged on the upper part of the first clamping member (501); the third clamping member (503) is arranged on the upper part of the second clamping member (502); the adjusting member (504) is arranged on the upper part of the third clamping member (503); the connecting member (505) is arranged on the upper part of the adjusting member (504) for connecting to the frame (300) of the reach forklift; the elastic support member (600) is arranged on the lower part of the first clamping member (501) for playing a shock absorbing and buffering role.

5. The driving wheel beam support device for a reach forklift according to claim 4, characterized in that: The adjusting member (504) comprises an adjusting bolt (504a), an adjusting nut (504b) and a fixing nut (504c); the upper end of the adjusting bolt (504a) is fixedly connected to the connecting member (505), and the lower end is threadedly connected to the adjusting nut (504b) and the fixing nut (504c) in sequence; the fixing nut (504c) is fixedly connected to the third clamping member (503).

6. The driving wheel beam support device for a reach forklift according to claim 2 or 4, characterized in that: The elastic supporting member (600) is a sponge plate, a sponge strip, a rubber plate or a rubber strip.

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