Lifting trolley for assembling off-highway wide-body dumper

Abstract

The utility model discloses a lifting trolley for assembling an off-highway wide-body dumper, which comprises a traveling mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism and a lifting mechanism, the traveling mechanism comprises a rectangular frame, and traveling wheels are mounted on the rectangular frame; the lifting mechanism comprises a lower frame, an upper frame and a lifting assembly, the lower frame is installed on the rectangular frame of the traveling mechanism, the lifting assembly is installed between the lower frame and the upper frame, and the lifting assembly is used for driving the upper frame to ascend and descend relative to the lower frame; the material tray is mounted above the upper frame of the lifting mechanism; and the workpiece clamp comprises a supporting frame, triangular steel and a clamp assembly, the supporting frame is installed above the upper frame, the triangular steel and the clamp assembly are installed on the supporting frame, and the triangular steel and the clamp assembly are matched to lift the anti-collision plate. The height is adjusted through the lifting mechanism, so that the mounting height requirements of different vehicle types are met; the lifting height and angle of the anti-collision plate workpiece are adjusted through the workpiece clamp, the device can adapt to the anti-collision plate workpieces of different specifications, and the assembly requirement of a non-road wide-body dumper is effectively met.

Description

Technical Field

[0001] The utility model relates to a lifting trolley used for assembling an off-road wide-body dump truck, belonging to the technical field of dump truck assembly. Background Art

[0002] On the off-road wide-body dump truck assembly line, when assembling the water tank anti-collision plate, two workers are usually required to lift the workpiece and then install it in the holes. This has low installation efficiency, requires a lot of manpower, and poses certain safety hazards. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a lifting trolley for assembling off-highway wide-body dump trucks, which saves manpower and improves the installation efficiency of anti-collision plates.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts a lifting trolley for assembling an off-road wide-body dump truck, comprising:

[0005] A traveling mechanism comprises a rectangular frame on which traveling wheels are mounted, and the traveling mechanism is used for traveling;

[0006] The lifting mechanism includes a lower frame, an upper frame, and a lifting assembly. The lower frame is mounted on the rectangular frame of the traveling mechanism. The lifting assembly is mounted between the lower frame and the upper frame. The lifting assembly is used to drive the upper frame to rise and fall relative to the lower frame.

[0007] The material tray is installed above the upper frame of the lifting mechanism, and the material tray rises and falls synchronously with the upper frame;

[0008] The workpiece fixture includes a support frame, a triangular steel and a fixture assembly. The support frame is installed above the upper frame, and the triangular steel and the fixture assembly are respectively installed on the support frame. The triangular steel and the fixture assembly cooperate to lift the anti-collision plate.

[0009] In some embodiments, the travel wheels include a pair of fixed wheels and a pair of universal wheels installed at the four corners of the rectangular frame.

[0010] In some embodiments, the lifting assembly includes two sets of lifting rods, two lead screw nuts installed on the lifting rods, and a lead screw connected to the lead screw nuts. A handwheel is installed at the end of the lead screw. The handwheel is rotated to drive the lead screw so that the two lead screw nuts move toward or away from each other, driving the lifting rod to rise or fall.

[0011] In some embodiments, each set of lifting links includes a transverse rod, two upper links hinged to the upper frame respectively, and two lower links hinged to the lower frame respectively. The upper links are hinged to the lower links, and the transverse rod is connected to the hinge, and the screw nut is installed on the transverse rod.

[0012] In some embodiments, a guide rod is installed between the upper frame and the lower frame, and the guide rod includes an inner rod and an outer rod. The bottom end of the inner rod is installed on the lower frame, the upper end of the outer rod is installed on the upper frame, and the lower end of the outer rod is mounted on the inner rod and can slide along the inner rod.

[0013] In some embodiments, the support frame is in the shape of a square, and the material tray is located at the inner bottom of the support frame.

[0014] In some embodiments, the triangular steel is installed on the front side of the support frame, and the two clamp assemblies are symmetrically installed on the left and right sides of the support frame.

[0015] In some embodiments, the clamp assembly includes a telescopic member and a top block hinged to the top of the telescopic member, and the two top blocks cooperate with triangular steel to lift the anti-collision plate.

[0016] In some embodiments, the telescopic member includes an inner tube installed on a support frame and an outer tube sleeved on the inner tube. A fastening nut is installed on the outer tube, and a screw plug is threadedly connected to the fastening nut. The screw plug is rotated through the wall of the outer tube to tighten the inner tube.

[0017] In some embodiments, the top block is hinged to the top of the outer tube via a pin.

[0018] Compared with the existing technology, the lifting trolley used for assembling off-road wide-body dump trucks in the utility model can adjust the height through the lifting mechanism to meet the installation height requirements of different models; the lifting height and angle of the anti-collision plate workpiece can be adjusted through the workpiece clamp, which can adapt to anti-collision plate workpieces of different specifications, effectively meeting the assembly requirements of off-road wide-body dump trucks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a structural diagram of the lifting mechanism of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of a workpiece fixture of the present utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the utility model;

[0024] In the figure: 1. Traveling mechanism; 2. Lifting mechanism, 21. Upper connecting rod, 22. Screw nut, 23. Screw, 24. Guide rod, 25. Rotating shaft, 26. Tie rod, 27. Handwheel, 28. Upper frame, 29. Lower frame; 3. Material tray; 4. Workpiece fixture, 41. Triangle steel, 42. Inner tube, 43. Outer tube, 44. Screw plug, 45. Fastening nut, 46. Pin, 47. Top block, 48. Support frame, 5. Anti-collision plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present application are described in detail below with the help of drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "front", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0027] like Figures 1-4 As shown, a lifting trolley for assembling an off-road wide-body dump truck includes a traveling mechanism 1, a lifting mechanism 2, a material tray 3, and a workpiece fixture 4;

[0028] The traveling mechanism 1 includes a rectangular frame with running wheels mounted on the rectangular frame. The traveling mechanism 1 is used for traveling and can meet the movement requirements of the lifting trolley.

[0029] The lifting mechanism 2 includes a lower frame 29, an upper frame 28 and a lifting assembly. The lower frame 29 is mounted on the rectangular frame of the traveling mechanism 1. The lifting assembly is mounted between the lower frame 29 and the upper frame 28. The lifting assembly is used to drive the upper frame 28 to rise and fall relative to the lower frame 29.

[0030] The material tray 3 is installed above the upper frame 28 of the lifting mechanism 2. The material tray 3 rises and falls synchronously with the upper frame 28. The material tray 3 is used to place standard parts and tools required for installing workpieces, which can save time for taking materials and improve installation efficiency.

[0031] The workpiece fixture 4 includes a support frame 48, a triangular steel 41 and a fixture assembly. The support frame 48 is installed above the upper frame 28. The triangular steel 41 and the fixture assembly are respectively installed on the support frame 48. The triangular steel 41 and the fixture assembly cooperate to lift the anti-collision plate 5 so that the anti-collision plate 5 is placed on the workpiece fixture 4 in an inclined and stable manner.

[0032] In some embodiments, as Figure 1 As shown, the traveling wheels include a pair of fixed wheels and a pair of universal wheels installed at the four corners of the rectangular frame, so that the trolley can move flexibly on the ground.

[0033] In some embodiments, as Figure 2 As shown, the lifting assembly includes two sets of lifting links, two lead screw nuts 22 installed on the lifting links, and a lead screw 23 connected to the lead screw nut 22. A handwheel 27 is installed at the end of the lead screw 23. Rotating the handwheel 27 drives the lead screw 23 to make the two lead screw nuts 22 move toward or away from each other, driving the lifting links to rise or fall.

[0034] In some embodiments, as Figure 2 As shown, the two sets of lifting links are symmetrically arranged, each set of lifting links includes a cross-link 26, two upper links 21, and two lower links. Each upper link 21 is hinged to the upper frame 28 via a rotating shaft 25, and each lower link is hinged to the lower frame 29 via a rotating shaft 25. The upper link 21 is hinged to the lower link, and the cross-link 26 is connected at the hinge. Both ends of the cross-link 26 are connected to the upper link 21 and the lower link. The middle part of the cross-link 26 is equipped with the screw nut 22. Turning the handwheel 27 drives the screw 23 to rotate clockwise, so that the two screw nuts 22 move towards each other. The two screw nuts 22 are respectively fixed to the two cross-links 26. As a result, the distance between the two cross-links 26 decreases, and the angle between the upper link 21 and the lower link increases, bringing the material tray 3 and the workpiece fixture 4 up synchronously. When the installation height needs to be lowered, the hand wheel 27 can be rotated counterclockwise. At this time, the lowering process is opposite to the lifting process.

[0035] In some embodiments, as Figure 2 As shown, guide rods 24 are mounted between the upper frame 28 and the lower frame 29. These guide rods 24 include an inner rod and an outer rod. The bottom end of the inner rod is mounted on the lower frame 29, the upper end of the outer rod is mounted on the upper frame 28, and the lower end of the outer rod is sleeved onto the inner rod and can slide along the inner rod. Guide rods 24 serve as a guide during the raising and lowering of the trolley, limiting the trolley's height to only change along the direction of guide rods 24, ensuring that the height of the workpiece can be freely adjusted during installation.

[0036] In some embodiments, as Figure 2As shown, the support frame 48 is in a square shape, and the material tray 3 is located at the inner bottom of the support frame 48. The support frame 48 plays a structural support role and does not interfere with the standard parts, tools, etc. in the material tray 3.

[0037] In some embodiments, as Figure 3 As shown, the triangular steel 41 is installed on the front side of the support frame 48, and the two clamp assemblies are symmetrically installed on the left and right sides of the support frame 48. The triangular steel 41 can support the bottom of the anti-collision plate 5, and cooperate with the two clamp assemblies to provide two-point support on the left and right sides of the bottom of the anti-collision plate 5 to form a stable support structure.

[0038] In some embodiments, as Figure 3 As shown, the clamp assembly includes a telescopic part and a top block 47 hinged on the top of the telescopic part. The two top blocks 47 cooperate with the triangular steel 41 to lift the anti-collision plate 5. The overall height of the clamp assembly can be adjusted through the telescopic part, which facilitates the adjustment of the lifting height of the anti-collision plate 5.

[0039] In some embodiments, as Figure 3 As shown, the telescopic member includes an inner tube 42 mounted on a support frame 48, and an outer tube 43 sleeved on the inner tube 42. A fastening hole is opened on one side wall of the outer tube 43, and a fastening nut 45 is installed at the fastening hole. A screw plug 44 is threadedly connected to the fastening nut 45. The outer tube 43 is sleeved on the inner tube 42 and the height can be adjusted up and down. After the height is adjusted, the screw plug 44 is rotated to pass through the fastening hole on the outer tube 43 and then tightened against the inner tube 42 to fix the height of the clamp assembly.

[0040] In some embodiments, as Figure 3 As shown, the top block 47 is hinged to the top of the outer tube 43 via a pin 46, facilitating adjustment of the lifting angle of the anti-collision plate 5. The top block 47 can be circular, for example. It can rotate along the pin 46, ensuring that its circular surface always conforms to the workpiece surface. Its fixed position can be adjusted to suit different workpieces, adapting to the lifting requirements of workpieces of varying specifications.

[0041] When used, combine Figure 4As shown, the staff pushes the lifting trolley to the side of the material frame where the workpiece (such as the anti-collision plate 5) is placed. First, the height of the telescopic part on the top of the lifting trolley is adjusted according to the size of the workpiece, and the overall height of the trolley is lowered by turning the handwheel 27. The workpiece is placed on the workpiece fixture 4 on the top of the lifting trolley, and the required standard parts, installation tools, etc. are placed on the material tray 3 of the lifting trolley. When everything is ready, the lifting trolley is pushed to the bottom of the workpiece installation position, and the lifting trolley is raised by turning the handwheel 27 to lift the workpiece to the required height. The horizontal position of the workpiece is fine-tuned to align the workpiece mounting hole with the vehicle mounting hole. The bolts are connected and tightened. After the operation is completed, the handwheel 27 is turned to lower the height of the lifting trolley, and the trolley is withdrawn. The operation is completed.

[0042] The utility model discloses a lifting trolley for assembling off-road wide-body dump trucks, the height of which can be adjusted through a lifting mechanism to meet the installation height requirements of different vehicle models; the lifting height and angle of the anti-collision plate workpiece can be adjusted through a workpiece clamp, and the anti-collision plate workpieces can be adapted to different specifications, effectively meeting the assembly requirements of off-road wide-body dump trucks.

[0043] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations, improvements or equivalent substitutions can be made, all of which should be included in the scope of the claims of the present invention. The scope of protection claimed in this application shall be based on the content of its claims, and the description of the specific implementation methods and other details can be used to interpret the content of the claims.

Claims

1. A lifting trolley for assembling off-highway wide-body dump trucks, characterized in that: include: A traveling mechanism (1) includes a rectangular frame, on which traveling wheels are mounted, and the traveling mechanism (1) is used for traveling; A lifting mechanism (2) comprises a lower frame (29), an upper frame (28) and a lifting assembly, wherein the lower frame (29) is mounted on the rectangular frame of the traveling mechanism (1), and the lifting assembly is mounted between the lower frame (29) and the upper frame (28), and the lifting assembly is used to drive the upper frame (28) to rise and fall relative to the lower frame (29); The material tray (3) is installed above the upper frame (28) of the lifting mechanism (2), and the material tray (3) rises and falls synchronously with the upper frame (28); The workpiece fixture (4) comprises a support frame (48), a triangular steel (41) and a fixture assembly, wherein the support frame (48) is mounted above the upper frame (28), the triangular steel (41) and the fixture assembly are respectively mounted on the support frame (48), and the triangular steel (41) and the fixture assembly cooperate to lift the anti-collision plate (5).

2. The lifting trolley for assembling an off-road wide-body dump truck according to claim 1, characterized in that: The traveling wheels include a pair of fixed wheels and a pair of universal wheels which are installed at the four corners of the rectangular frame.

3. The lifting trolley for assembling an off-road wide-body dump truck according to claim 1, characterized in that: The lifting assembly comprises two sets of lifting connecting rods, two lead screw nuts (22) mounted on the lifting connecting rods, and a lead screw (23) connected to the lead screw nuts (22). A hand wheel (27) is mounted on the end of the lead screw (23). The hand wheel (27) is rotated to drive the lead screw (23) so that the two lead screw nuts (22) move toward or away from each other, thereby driving the lifting connecting rod to rise or fall.

4. The lifting trolley for assembling an off-road wide-body dump truck according to claim 3, characterized in that: Each lifting link group includes a transverse rod (26), two upper links (21) respectively hinged to the upper frame (28) and two lower links respectively hinged to the lower frame (29). The upper link (21) is hinged to the lower link, and the transverse rod (26) is connected to the hinge. The screw nut (22) is installed on the transverse rod (26).

5. The lifting trolley for assembling an off-road wide-body dump truck according to claim 1, characterized in that: A guide rod (24) is installed between the upper frame (28) and the lower frame (29). The guide rod (24) includes an inner rod and an outer rod. The bottom end of the inner rod is installed on the lower frame (29), the upper end of the outer rod is installed on the upper frame (28), and the lower end of the outer rod is sleeved on the inner rod and can slide along the inner rod.

6. The lifting trolley for assembling an off-highway wide-body dump truck according to claim 1, characterized in that: The support frame (48) is in the shape of a square body, and the material tray (3) is located at the inner bottom of the support frame (48).

7. The lifting trolley for assembling an off-road wide-body dump truck according to claim 1, characterized in that: The triangular steel (41) is installed on the front side of the support frame (48), and the two clamp assemblies are symmetrically installed on the left and right sides of the support frame (48).

8. The lifting trolley for assembling an off-road wide-body dump truck according to claim 1, characterized in that: The clamp assembly comprises a telescopic member and a top block (47) hinged on the top of the telescopic member. The two top blocks (47) cooperate with the triangular steel (41) to lift the anti-collision plate (5).

9. The lifting trolley for assembling an off-highway wide-body dump truck according to claim 8, characterized in that: The telescopic member comprises an inner tube (42) mounted on a support frame (48), and an outer tube (43) sleeved on the inner tube (42); a fastening nut (45) is mounted on the outer tube (43); a screw plug (44) is threadedly connected to the inside of the fastening nut (45); the screw plug (44) is rotated to pass through the wall of the outer tube (43) and press against the inner tube (42).

10. The lifting trolley for assembling an off-highway wide-body dump truck according to claim 9, characterized in that: The top block (47) is hinged to the top of the outer tube (43) through a pin (46).

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