Hinged support assembly and mining dump truck carriage

Abstract

The utility model provides a hinged support assembly and a mining dump truck carriage, relates to a mining dump truck, and adopts the technical scheme that the hinged support assembly comprises a bottom plate, a left hinged seat and a right hinged seat are symmetrically arranged at the two ends of the bottom plate, and the left hinged seat and the right hinged seat are used for installing corresponding hinged pin shafts; the bottom plate can stretch across the left half compartment and the right half compartment. According to the utility model, the coaxiality of the hinge pin shafts on the two sides after the carriage is welded and folded can be ensured, and the phenomena such as breakage of the hinge pin shafts are avoided.

Description

Technical Field

[0001] The utility model relates to a mining dump truck, in particular to an articulated support assembly and a mining dump truck compartment. Background Art

[0002] An off-road mining dump truck is a heavy-duty dump truck used in open-pit mines to complete rock and earth stripping and ore transportation tasks. Its working characteristics are short travel distance and heavy load. It is usually loaded by a large electric excavator or hydraulic excavator and travels back and forth between the mining site and the unloading site. As one of the important parts of a dump truck, the carriage is used to load and unload various engineering materials. The bottom of the carriage of the dump truck is provided with articulated supports on the left and right sides, and is hinged to the frame through the articulated supports and connected to the frame through a lifting cylinder.

[0003] The working environment of dump trucks places higher demands on the performance of the carriage, and the size of the carriage floor also increases accordingly. In order to improve the strength of the floor and ensure the loading capacity of the carriage, in the prior art, the carriage adopts a welded structure with reinforcing ribs intersecting vertically and horizontally. In order to facilitate the assembly of off-road mining dump trucks, the carriage adopts a left and right half-structure, which is welded as a whole at the work site. This can not only ensure the reliability and durability of the structure, but also facilitate the transportation and assembly of related components, thereby improving economic benefits.

[0004] Since the articulated supports are arranged on both sides of the bottom of the car, the coaxiality requirements of the articulated supports of the left and right cars cannot be guaranteed after the cars are welded together. When the car is frequently lifted and lowered, it is very easy for the articulated pin to break due to the coaxiality not meeting the requirements. Utility Model Content

[0005] In order to solve the technical problem in the above-mentioned prior art that the coaxiality of the articulated supports on both sides cannot be ensured after the half-type carriage of the off-road mining dump truck is welded, the utility model provides an articulated support assembly and a mining dump truck carriage, which can ensure the coaxiality of the articulated pins on both sides after the carriage is welded and closed, thereby avoiding the occurrence of phenomena such as the breakage of the articulated pins.

[0006] In the first aspect, the utility model provides an articulated support assembly to solve the above-mentioned technical problems, including a base plate, with a left articulated seat and a right articulated seat symmetrically arranged at both ends of the base plate, the left articulated seat and the right articulated seat are used to install corresponding articulated pins, and the base plate can span the left half of the car body and the right half of the car body.

[0007] The utility model realizes the integration of two articulated supports at the bottom of the mining dump truck compartment by installing the left articulated seat and the right articulated seat on a bottom plate, so as to ensure the coaxiality of the articulated pin shafts at both ends before the compartment is welded and closed, thereby avoiding the influence of the compartment welding accuracy on the coaxiality and avoiding the occurrence of the articulated pin shaft breakage and the like.

[0008] Furthermore, reinforcing beams are provided on both sides of the base plate, the reinforcing beams are arranged along the length direction of the base plate, and two ends of the reinforcing beams are respectively connected to the left hinge seat and the right hinge seat.

[0009] The utility model can prevent the bottom plate from being deformed due to stress by arranging the reinforcing beam, thereby enhancing the strength of the hinged support assembly.

[0010] Furthermore, the reinforcing beam is a U-shaped beam, and the opening direction of the reinforcing beam faces the bottom plate.

[0011] The utility model uses U-shaped beams to strengthen the structure, on the one hand ensuring strength, and on the other hand reducing mass to achieve lightweight.

[0012] Furthermore, reinforcing rib plates are provided between the left hinge seat, the right hinge seat and the corresponding ends of the two reinforcing beams.

[0013] Furthermore, the reinforcing rib plate is in a right-angled trapezoidal structure, and the narrow ends of the reinforcing rib plates at both ends are close to each other.

[0014] Furthermore, the two reinforcing ribs at the same end are symmetrically and inclinedly arranged, and the two reinforcing ribs at the same end are close to each other at a side away from the reinforcing beam.

[0015] The utility model can ensure that the reinforcing rib plates can support the maximum force-bearing positions in the middle of the left hinge seat and the right hinge seat by tilting the reinforcing rib plates, thereby further improving the strength of the hinge support assembly.

[0016] Furthermore, the left hinge seat and the right hinge seat each include two oppositely arranged vertical plates, the vertical plates are provided with pin holes, and the edges of the vertical plates are provided with protruding reinforcement portions at positions corresponding to the pin holes.

[0017] The utility model can compensate for the reduction of the strength of the vertical plate caused by the pin hole by arranging the reinforcement part on the vertical plate, thereby improving the strength of the vertical plate.

[0018] Furthermore, a connecting plate is provided between the two vertical plates of the left hinge seat and the right hinge seat, and the connecting plate is a bent plate.

[0019] The utility model uses a bent plate to connect two upright plates, thereby increasing the supporting area of ​​the connecting plate to the upright plates and further improving the strength of the hinged support assembly.

[0020] In the second aspect, the utility model also provides a mining dump truck compartment, comprising a left half compartment and a right half compartment connected by welding, and also comprising the above-mentioned articulated support assembly, wherein the two ends of the bottom plate are respectively connected to the left half compartment and the right half compartment, the left articulated seat is located at the bottom of the left half compartment, and the right articulated seat is located at the bottom of the right half compartment.

[0021] It can be seen from the above technical solutions that the utility model has the following advantages:

[0022] The utility model provides an articulated support assembly and a mining dump truck compartment. The two articulated supports at the bottom of the mining dump truck compartment are integrated by installing the left articulated seat and the right articulated seat on a bottom plate. The coaxiality of the articulated pins at both ends can be ensured before the compartment is welded and closed, thereby avoiding the influence of the compartment welding accuracy on the coaxiality and avoiding the occurrence of the articulated pins and the like. The arrangement of a reinforcing beam can prevent the bottom plate from being deformed by force, thereby enhancing the strength of the articulated support assembly. The use of a U-shaped beam for reinforcement can ensure the strength on the one hand and reduce the weight on the other hand to achieve lightweight. The inclined arrangement of a reinforcing rib plate can ensure that the reinforcing rib plate supports the maximum force position in the middle of the left articulated seat and the right articulated seat, thereby further improving the strength of the articulated support assembly. The arrangement of a reinforcing portion on the vertical plate can compensate for the reduction in the strength of the vertical plate caused by the pin hole, thereby improving the strength of the vertical plate. The use of a bent plate to connect the two vertical plates can increase the supporting area of ​​the connecting plate to the vertical plate, thereby further improving the strength of the articulated support assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a specific implementation mode 1 of the present utility model.

[0025] Figure 2 It is an exploded view of the second specific implementation mode of the present utility model.

[0026] In the figure, 1, left hinged seat; 2, vertical plate; 3, connecting plate; 4, reinforcing rib plate; 5, reinforcing beam; 6, right hinged seat; 7, bottom plate; 8, right half of the carriage; 9, left half of the carriage. DETAILED DESCRIPTION

[0027] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0028] In the prior art, the carriage of an off-road mining dump truck adopts a two-half welded structure. Due to the problem of welding accuracy, there is a deviation in the relative position of the hinge supports at the bottom of the left and right half carriages, resulting in a large coaxiality deviation of the hinge pins on both sides of the carriage, affecting the service life of the hinge pins. For this reason, the inventor creatively adopts the technical concept of integrating the left and right hinge supports into one, thereby solving the technical problem of the coaxiality affected by the misalignment of the relative position of the left and right hinges due to welding. Specific implementation method 1

[0030] like Figure 1 and Figure 2 As shown, this specific embodiment provides an articulated support assembly, including a base plate 7, a left articulated seat 1 and a right articulated seat 6, the left articulated seat 1 and the right articulated seat 6 are symmetrically arranged at both ends of the base plate 7, the left articulated seat 1 and the right articulated seat 6 are used to install corresponding articulated pins, and the base plate 7 can span the left half car body 9 and the right half car body 8.

[0031] This specific embodiment integrates the two articulated supports at the bottom of the mining dump truck compartment by installing the left articulated seat 1 and the right articulated seat 6 on a base plate 7, so that the coaxiality of the hinge pins at both ends can be ensured before the compartment is welded together. After the compartment is welded, the assembly is welded to the bottom of the compartment, and the relative positions of the articulated supports at both ends will not change, thereby avoiding the influence of the compartment welding accuracy on the coaxiality and avoiding the occurrence of articulated pin breakage and the like.

[0032] like Figure 1 As shown, preferably, in order to ensure the strength of the articulated support assembly, reinforcing beams 5 are provided on both sides of the bottom plate 7, and the reinforcing beams 5 are arranged along the length direction of the bottom plate 7. The two ends of the reinforcing beams 5 are respectively connected to the left articulated seat 1 and the right articulated seat 6. The reinforcing beams 5 are U-shaped beams, and the opening direction of the reinforcing beams 5 faces the bottom plate 7. By using U-shaped beams for reinforcement, the strength is ensured on the one hand, and the weight is reduced on the other hand to achieve lightweight; reinforcing ribs 4 are provided between the left articulated seat 1 and the right articulated seat 6 and the corresponding ends of the two reinforcing beams 5, and the reinforcing ribs 4 are in the shape of a right-angle trapezoid. Structure, the narrow ends of the reinforcing ribs at both ends are close to each other; further, since the hinge pins are arranged in the middle of the left hinge seat 1 and the right hinge seat 6, the middle part is subjected to the greatest force and is prone to deformation. In order to enhance the supporting strength of the reinforcing rib plates 4 on the left hinge seat 1 and the right hinge seat 6 to reduce or even avoid deformation, the two reinforcing rib plates 4 at the same end are symmetrically and inclinedly arranged, and the two reinforcing rib plates 4 at the same end are close to each other on the side away from the reinforcing beam 5. After such arrangement, it can be ensured that the reinforcing rib plates 4 are close to the middle of the left hinge seat 1 and the right hinge seat 6, and play a stronger supporting role.

[0033] like Figure 1As shown, preferably, in this specific embodiment, the left hinge seat 1 and the right hinge seat 6 each include two relatively arranged vertical plates 2, the vertical plates 2 are used for rotatably installing the hinge pin shaft, and pin holes are arranged on the vertical plates 2. A protruding reinforcement portion is arranged at a position corresponding to the pin hole at the edge of the vertical plate 2, and the weakening of the strength of the vertical plates 2 caused by the pin hole is compensated by setting the reinforcement portion; a connecting plate 3 is arranged between the two vertical plates 2 of the left hinge seat 1 and the right hinge seat 6, and the connecting plate 3 is a bent plate. By setting the bent plate, the supporting area of ​​the connecting plate 3 on the two vertical plates 2 is increased, the strength of the hinge seat is enhanced, and deformation is avoided.

[0034] In this specific embodiment, the vertical plate 2 and the connecting plate 3, the vertical plate 2 and the reinforcing rib plate 4, the end of the reinforcing beam 5 and the vertical plate 2, and the reinforcing beam 5 and the bottom plate 7 are all connected by welding. Specific implementation method 2

[0036] like Figure 2 As shown, this specific embodiment provides a mining dump truck compartment, including a left half compartment 9 and a right half compartment 8 that are welded together, and also includes the articulated support assembly of specific embodiment one, the two ends of the bottom plate 7 are respectively welded to the left half compartment 9 and the right half compartment 8, the left articulated seat 1 is located at the bottom of the left half compartment 9, and the right articulated seat 6 is located at the bottom of the right half compartment 8.

[0037] From the above specific implementations, it can be seen that the utility model has the following beneficial effects:

[0038] 1. By installing the left articulated seat 1 and the right articulated seat 6 on a bottom plate 7, the two articulated supports at the bottom of the mining dump truck compartment are integrated, so that the coaxiality of the articulated pins at both ends can be ensured before the compartment is welded and closed, avoiding the influence of the compartment welding accuracy on the coaxiality and avoiding the occurrence of articulated pin breakage and the like;

[0039] 2. The reinforcement beam 5 can prevent the bottom plate 7 from being deformed by force, thereby enhancing the strength of the hinged support assembly;

[0040] 3. Strengthen by using U-shaped beams to ensure strength on one hand and reduce weight on the other hand;

[0041] 4. By tilting the reinforcing rib plate 4, it is possible to ensure that the reinforcing rib plate 4 can support the maximum force position in the middle of the left hinge seat 1 and the right hinge seat 6, further improving the strength of the hinge support assembly;

[0042] 5. By providing a reinforcement part on the vertical plate 2, the reduction in the strength of the vertical plate 2 caused by the pin hole can be compensated, thereby improving the strength of the vertical plate 2;

[0043] 6. By using a bent plate to connect the two vertical plates 2, the supporting area of ​​the connecting plate 3 on the vertical plates 2 is increased, further improving the strength of the hinged support assembly.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An articulated support assembly, comprising a base plate (7), characterized in that: A left hinge seat (1) and a right hinge seat (6) are symmetrically arranged at both ends of the bottom plate (7). The left hinge seat (1) and the right hinge seat (6) are used to install corresponding hinge pins. The bottom plate (7) can span the left half carriage and the right half carriage.

2. The articulated support assembly according to claim 1, characterized in that: Reinforcement beams (5) are provided on both sides of the bottom plate (7). The reinforcement beams (5) are arranged along the length direction of the bottom plate (7). Two ends of the reinforcement beams (5) are respectively connected to the left hinge seat (1) and the right hinge seat (6).

3. The articulated support assembly according to claim 2, characterized in that: The reinforcing beam (5) is a U-shaped beam, and the opening direction of the reinforcing beam (5) faces the bottom plate (7).

4. The articulated support assembly according to claim 3, characterized in that: Reinforcement rib plates (4) are provided between the left hinge seat (1) and the right hinge seat (6) and the corresponding ends of the two reinforcement beams (5).

5. The articulated support assembly according to claim 4, characterized in that: The reinforcing rib plate (4) is in a right-angled trapezoidal structure, and the narrow ends of the reinforcing rib plates (4) at both ends are close to each other.

6. The articulated support assembly according to claim 5, characterized in that: The two reinforcing rib plates (4) at the same end are symmetrically and inclinedly arranged, and the two reinforcing rib plates (4) at the same end are close to each other on the side away from the reinforcing beam (5).

7. The articulated support assembly according to any one of claims 1 to 6, characterized in that: The left hinge seat (1) and the right hinge seat (6) both comprise two oppositely arranged vertical plates (2), the vertical plates (2) being provided with pin holes, and the edges of the vertical plates (2) being provided with protruding reinforcement portions at positions corresponding to the pin holes.

8. The articulated support assembly according to claim 7, characterized in that: A connecting plate (3) is provided between the two vertical plates (2) of the left hinge seat (1) and the right hinge seat (6), and the connecting plate (3) is a bent plate.

9. A mining dump truck compartment, comprising a left compartment (9) and a right compartment (8) connected by welding, characterized in that: It also includes the articulated support assembly as described in claim 8, wherein the two ends of the bottom plate (7) are respectively connected to the left half of the carriage (9) and the right half of the carriage (8), the left articulated seat (1) is located at the bottom of the left half of the carriage (9), and the right articulated seat (6) is located at the bottom of the right half of the carriage (8).

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