Supercharger mounting structure and large engineering machinery

Abstract

The utility model discloses a supercharger installation structure and a large engineering machine. The supercharger installation structure comprises a cab lower bin, a support and a supercharger. A window is formed in an outer plate of the cab lower cabin; the support is arranged on the inner side face, located at the window, of the cab lower bin outer plate, one end of the support is hinged to the cab lower bin outer plate, and a locking mechanism is arranged between the other end of the support and the cab lower bin outer plate. When the locking mechanism is in a locking state, the bracket can completely cover the window; when the locking mechanism is in an unlocking state, the bracket can horizontally rotate towards the interior of the lower cabin of the cab around a hinge point of the bracket; the supercharger is fixed to the outer side face of the support and can rotate along with the support. According to the utility model, the difficult problem of maintenance or replacement of the supercharger on the large engineering machinery can be solved, an operator can maintain or replace the supercharger only by standing in the lower cabin of the cab and rotating the bracket towards the inside of the lower cabin of the cab, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to a supercharger installation structure and belongs to the technical field of engineering machinery. Background Art

[0002] A supercharger is installed on large excavators to improve the air quality inside the cab. The installation position of the supercharger is determined according to the air inlet position of the lower compartment air conditioning evaporator. The pressurized air enters the cab through the air conditioning evaporator, which plays a role of pressurization and sealing. In order to be close to the evaporator of the air conditioning system in the lower compartment of the cab, the supercharger needs to be installed in the lower compartment near the air conditioning evaporator. Since the cab is high off the ground, the installation position of the supercharger will be high off the ground. When the operator repairs or replaces it, he needs to use auxiliary equipment such as a climbing vehicle, which is very inconvenient. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a supercharger installation structure, which enables an operator to directly replace or repair the supercharger without the aid of climbing equipment, which is simpler and more convenient.

[0004] The utility model is implemented according to the following technical solutions:

[0005] In a first aspect, the utility model provides a supercharger installation structure, comprising:

[0006] The lower compartment of the cab has a window on its outer plate;

[0007] The bracket is arranged on the inner side of the outer panel of the lower compartment of the cab at the window, and one end of the bracket is hinged to the outer panel of the lower compartment of the cab, and a locking mechanism is arranged between the other end of the bracket and the outer panel of the lower compartment of the cab; when the locking mechanism is in a locked state, the bracket can completely cover the window; when the locking mechanism is in an unlocked state, the bracket can horizontally rotate around its hinge point toward the inside of the lower compartment of the cab;

[0008] The supercharger is fixed on the outer side of the bracket and can rotate along with the bracket.

[0009] In some embodiments, the support comprises:

[0010] The frame is composed of a plurality of cross beams and a plurality of longitudinal beams welded together;

[0011] A baffle, fixed on the outer side of the frame, the contour of the baffle being adapted to the contour of the frame;

[0012] A hinged member, one end of which is fixed to one side of the frame, and the other end of which is fixed to the outer panel of the lower compartment of the cab;

[0013] The limit mounting plate is fixed on the other side of the frame and is used for assembling the locking mechanism.

[0014] In some embodiments, a plurality of mounting holes are provided on the baffle plate, and a welding nut arranged coaxially with each mounting hole is provided inside each mounting hole for cooperating with a bolt to fix the supercharger on the baffle plate.

[0015] In some embodiments, the baffle plate is provided with a pipe passing hole and a wire passing hole for passing the bellows and the electrical wire harness on the supercharger through the lower cabin of the cab.

[0016] In some embodiments, at least one through hole Ⅰ is provided on one side surface of the limit mounting plate facing the outer plate of the lower cabin of the cab, a through hole Ⅱ arranged coaxially with the through hole Ⅰ is provided on the outer plate of the lower cabin of the cab, and a welding nut arranged coaxially with the through hole Ⅱ is provided outside the through hole Ⅱ for cooperating with a bolt to fix the limit mounting plate on the outer plate of the lower cabin of the cab; the bolt and the welding nut cooperate to form the locking mechanism.

[0017] In some embodiments, the hinge member is a hinge, one end of which is welded to the frame and the other end is fixed to a threaded mounting seat on the inner side surface of the outer plate of the lower cabin of the cab through a bolt.

[0018] In some embodiments, the number of the hinges is two, which are respectively arranged at the upper end and the lower end of the frame, and two threaded mounting seats are fixed on the inner side surface of the outer plate of the lower cabin of the cab, and one threaded mounting seat corresponds to one hinge.

[0019] In some embodiments, a handle is fixed on the inner side surface of one end of the bracket far away from its hinged end, and an operator can horizontally rotate the bracket around its hinge point after holding the handle.

[0020] In some embodiments, the handle is of a U-shaped structure, and its two free ends are welded together perpendicular to the mounting surface of the bracket.

[0021] In a second aspect, the present invention provides a large construction machinery, including the supercharger mounting structure described above.

[0022] Advantages of the present invention:

[0023] The supercharger mounting structure provided by the present invention can solve the problem of the maintenance or replacement of the supercharger on the large construction machinery. An operator only needs to stand inside the lower cabin of the cab and rotate the bracket towards the inside of the lower cabin of the cab, and then the supercharger can be maintained or replaced, which is simple and convenient. Description of the drawings

[0024] The accompanying drawings, as part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model, but do not constitute an improper limitation to the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the bracket in the locked state;

[0027] Figure 2 It is a schematic diagram of the bracket in the state of being opened towards the interior of the lower cabin of the cab;

[0028] Figure 3 It is a perspective view of the bracket.

[0029] The meanings of the reference numerals in the drawings are: 1: Lower cabin of the cab; 1-1: Threaded mounting seat; 1-2: Welding nut; 2: Turbocharger; 3: Bracket; 3-1: Limit mounting plate; 3-2: Handle; 3-3: Welding nut; 3-4: Hinge; 3-5: Pipe passing hole; 3-6: Wire passing hole; 3-7: Frame; 3-8: Baffle; 4: Bolt; 5: Bolt.

[0030] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] As Figure 1 , Figure 2 shown, a supercharger installation structure includes a lower cabin 1 of the cab, a bracket 3, and a supercharger 2; a window is opened on the outer plate of the lower cabin 1 of the cab; the bracket 3 is arranged on the inner side of the outer plate of the lower cabin of the cab at the window position, and one end of the bracket 3 is hinged to the outer plate of the lower cabin of the cab, and a locking mechanism is provided between the other end of the bracket 3 and the outer plate of the lower cabin of the cab; when the locking mechanism is in the locked state, the bracket 3 can completely cover the window; when the locking mechanism is in the unlocked state, the bracket 3 can rotate horizontally around its hinge point towards the inside of the lower cabin 1 of the cab; the supercharger 2 is fixed on the outer side of the bracket 3 and can rotate together with the bracket 3. The function of the supercharger 2 is to increase the pressure of the air outside the cab and then transmit the pressurized air to the inside of the cab through the evaporator of the air conditioning system to achieve the pressurization effect of the cab.

[0035] It should be noted that since the lower cabin 1 of the cab of large construction machinery is at a relatively high distance from the ground, the installation position of the supercharger 2 is also at a high distance from the ground, which brings inconvenience to the operator for repairing or replacing the supercharger 2. In the present utility model, the supercharger 2 is installed on the bracket 3, and the bracket 3 is installed inside the lower cabin 1 of the cab. The supercharger 2 is placed outside the lower cabin 1 of the cab. By opening the bracket 3, the supercharger 2 can be replaced or repaired inside the lower cabin 1 of the cab, solving the problem of repairing or replacing the supercharger on large construction machinery.

[0036] The following further describes the above-mentioned bracket.

[0037] As Figure 3 shown, the bracket 3 includes a frame 3-7, a baffle 3-8, a hinge 3-4, and a limit mounting plate 3-1; the frame 3-7 is formed by welding multiple cross beams and multiple longitudinal beams; the baffle 3-8 is fixed on the outer side of the frame 3-7, and the contour of the baffle 3-8 is adapted to the contour of the frame 3-7; one end of the hinge 3-4 is fixed on one side of the frame 3-7, and the other end is fixed on the outer plate of the lower cabin of the cab; the limit mounting plate 3-1 is fixed on the other side of the frame 3-7 for assembling the locking mechanism, and the limit mounting plate 3-1 can ensure that the bracket 3 can only rotate towards the inside of the lower cabin 1 of the cab.

[0038] A further solution is as Figure 3As shown in the figure, the baffle 3-8 is provided with a plurality of mounting holes, and a welding nut 3-3 arranged coaxially with each mounting hole is provided inside each mounting hole, which is used to cooperate with the bolt 5 to fix the supercharger 2 on the baffle 3-8.

[0039] Further, as Figure 3 shown in the figure, the baffle 3-8 is provided with a pipe passing hole 3-5 and a wire passing hole 3-6 for passing the bellows and the electrical wire harness on the supercharger 2 through the lower cabin 1 of the cab.

[0040] Further, as Figure 3 shown in the figure, the limiting mounting plate 3-1 is provided with two through holes I on the side facing the outer plate of the lower cabin of the cab, the outer plate of the lower cabin of the cab is provided with through holes II arranged coaxially with the through holes I, and a welding nut 1-2 arranged coaxially with the outside of the through holes II is provided, which is used to cooperate with the bolt 4 to fix the limiting mounting plate 3-1 on the outer plate of the lower cabin of the cab; the bolt 4 and the welding nut 1-2 cooperate to form a locking mechanism. The operator can directly replace or repair the supercharger without using climbing equipment. Specifically, when repair or replacement is needed, only the two bolts 4 of the mounting bracket 3 need to be unscrewed, and under the action of the hinge member 3-4, the bracket 3 is rotated towards the inside of the lower cabin 1 of the cab, and the operator can stand inside the lower cabin 1 of the cab to repair or replace the supercharger 2.

[0041] The above hinge parts are further described below.

[0042] Further, as Figure 3 shown in the figure, the hinge part 3-4 is a hinge, one end of which is welded to the frame 3-7, and the other end is fixed to the threaded mounting seat 1-1 on the inner side of the outer plate of the lower cabin of the cab through the bolt 4.

[0043] Preferably, as Figure 3 shown in the figure, the number of hinges is two, which are respectively arranged at the upper end and the lower end of the frame 3-7, and two threaded mounting seats 1-1 are fixed on the inner side of the outer plate of the lower cabin of the cab, and one threaded mounting seat 1-1 corresponds to one hinge.

[0044] It should be noted that the number of hinges is not limited to the above two, and can also be three or four. In the design, the corresponding quantity adjustment can be made according to actual needs.

[0045] Further, as Figure 3 shown in the figure, a handle 3-2 is fixed on the inner side of the end of the bracket 3 far from its hinged end. When repair or replacement is needed, only the two bolts 4 of the mounting bracket 3 need to be unscrewed, and then the handle 3-2 on the bracket 3 is held by hand, and the bracket 3 is rotated towards the inside of the lower cabin 1 of the cab through the hinge, and the operator can stand inside the lower cabin 1 of the cab to repair or replace the supercharger 2.

[0046] Preferably, as Figure 3 shown, the handle 3-2 is of a U-shaped structure, and its two free ends are welded together in a manner perpendicular to the mounting surface of the bracket.

[0047] It should be noted that the shape of the handle is not limited to the above U-shaped structure, and it can also be a T-shaped structure. In the design, corresponding shape adjustments can be made according to actual needs.

[0048] In summary, the present utility model provides a supercharger mounting structure. An opening is made on the outer plate of the lower cabin of the cab, the supercharger 2 is installed on the bracket 3, and the supercharger 2 is placed outside the lower cabin 1 of the cab through the hole on the outer plate of the lower cabin of the cab; the bracket 3 is installed on the mounting seat 1-1 of the lower cabin 1 of the cab by bolts through the hinge 3-4, and the bracket 3 can rotate through the hinge. At the same time, the other side of the bracket 3 is installed on the welding nut 1-2 of the lower cabin 1 of the cab by bolts 4 through the limit mounting plate 3-1, which plays a role in fixing and limiting the bracket 3, so that the bracket 3 can only be opened towards the inside of the lower cabin 1 of the cab. When the operator needs to repair or replace the supercharger 2, only two bolts 4 on the limit mounting plate 3-1 need to be unscrewed, and then the bracket 3 can be rotated towards the inside of the lower cabin 1 by holding the handle 3-2, so that the supercharger 2 can be repaired or replaced inside the lower cabin 1 of the cab, which is simple and convenient.

[0049] Next, the construction machinery provided by the present utility model will be described. The construction machinery described below can be mutually corresponding and referenced to the supercharger mounting structure described above.

[0050] A large construction machinery provided by the present utility model may include the supercharger mounting structure as described in any one of the above embodiments.

[0051] The beneficial effects achieved by the construction machinery provided by the present utility model are consistent with those achieved by the supercharger mounting structure provided by the present utility model, so they will not be elaborated here.

[0052] It should be noted that the above construction machinery may be a large excavator. The excavator includes a power device, a traveling device, a slewing device, and a working device.

[0053] The power device of the excavator generally uses a diesel engine, which is fixed on the turntable through a shock absorption device to provide power for its traveling device, slewing device, working device, etc.

[0054] The traveling device of the excavator supports the overall mass of the excavator and completes the traveling task, and mostly uses crawler type and tire type.

[0055] The slewing device of the excavator rotates the upper part left or right for excavation and discharging materials.

[0056] The working device of the excavator is used to directly complete the excavation task, including the boom, arm, bucket and linkage mechanism, etc.

[0057] The hydraulic system of the excavator transmits the power output by the engine to the working device and the traveling device.

[0058] The electrical system of the excavator mainly detects some temperatures, pressures, speeds and switch quantities of the engine, hydraulic pump, main valve and actuators (hydraulic cylinders, hydraulic motors) and transmits the relevant detection data to the special controller of the excavator. The controller synthesizes various measured values, set values and operation signals to issue relevant control information to control the engine, hydraulic pump, main valve and the whole machine.

[0059] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0060] In addition, those skilled in the art can understand that although some embodiments described herein include certain features contained in other embodiments rather than other features, the combinations of the features of different embodiments also mean being within the protection scope of the present invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use them in a combined manner according to the known technical solutions and the technical problems to be solved by this application.

[0061] The above description is only the preferred embodiments of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent can make some changes or modifications to the equivalent embodiments by using the technical content prompted above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A supercharger installation structure, characterized in that, Comprising: The lower cabin under the cab, with a window opened on its outer panel; A bracket, arranged on the inner side of the outer panel of the lower cabin under the cab at the position of the window, and one end of the bracket is hinged to the outer panel of the lower cabin under the cab, and a locking mechanism is provided between the other end of the bracket and the outer panel of the lower cabin under the cab; When the locking mechanism is in the locked state, the bracket can completely cover the window; When the locking mechanism is in the unlocked state, the bracket can rotate horizontally around its hinge point towards the inside of the lower cabin under the cab; A supercharger, fixed on the outer side of the bracket, and can rotate together with the bracket.

2. The supercharger mounting structure according to claim 1, characterized in that The bracket includes: A frame, composed of a plurality of cross beams and a plurality of longitudinal beams welded together; A baffle, fixed on the outer side of the frame, and the contour of the baffle is adapted to the contour of the frame; A hinge member, one end of which is fixed on one side of the frame, and the other end is fixed on the outer panel of the lower cabin under the cab; A limit mounting plate, fixed on the other side of the frame, for assembling the locking mechanism.

3. The supercharger mounting structure according to claim 2, characterized in that: A plurality of mounting holes are provided on the baffle, and a welding nut coaxial with each mounting hole is provided inside each mounting hole, for cooperating with a bolt to fix the supercharger on the baffle.

4. The supercharger mounting structure according to claim 2, characterized in that: A pipe passing hole and a wire passing hole for passing the bellows and the electrical wiring harness on the supercharger into the lower cabin under the cab are provided on the baffle.

5. The supercharger mounting structure according to claim 2, characterized in that: At least one through hole Ⅰ is provided on the side surface of the limit mounting plate facing the outer panel of the lower cabin under the cab, a through hole Ⅱ coaxial with the through hole Ⅰ is provided on the outer panel of the lower cabin under the cab, and a welding nut coaxial with the through hole Ⅱ is provided outside the through hole Ⅱ, for cooperating with a bolt to fix the limit mounting plate on the outer panel of the lower cabin under the cab; The bolt and the welding nut cooperate to form the locking mechanism.

6. The supercharger mounting structure according to claim 2, characterized in that: The hinge member is a hinge, one end of which is welded on the frame, and the other end is fixed on a threaded mounting seat on the inner side surface of the outer panel of the lower cabin under the cab through a bolt.

7. The supercharger mounting structure according to claim 6, characterized in that: The number of the hinges is two, which are respectively arranged at the upper end and the lower end of the frame, and two threaded mounting seats are fixed on the inner side surface of the outer panel of the lower cabin under the cab, and one threaded mounting seat corresponds to one hinge.

8. The supercharger mounting structure according to claim 1, characterized in that: A handle is fixed on the inner side surface of the end of the bracket far from its hinged end, and an operator can rotate the bracket horizontally around its hinge point after holding the handle.

9. The supercharger mounting structure according to claim 8, characterized in that: The handle is of a U-shaped structure, and its two free ends are welded together perpendicular to the mounting surface of the bracket.

10. A large construction machinery, characterized in that: It includes the supercharger mounting structure according to any one of claims 1 to 9.

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