Frame integrated type cab suspension structure and mining dump truck

Abstract

The utility model discloses a frame integrated type cab suspension structure and a mining dump truck, and the frame integrated type cab suspension structure comprises a cab front suspension structure which comprises a cab front suspension bracket and a front bumper mounting bracket, and the cab front suspension bracket and the front bumper mounting bracket are integrated with a first cross beam; the platform front suspension structure comprises a platform front suspension bracket and a platform frame mounting bracket, and the platform front suspension bracket, the platform frame mounting bracket and the front bumper mounting bracket are integrated with the first cross beam; the cab rear suspension structure comprises a left hydro-pneumatic suspension oil cylinder upper support, a right hydro-pneumatic suspension oil cylinder upper support, a cab rear suspension support, a frame circular beam and a platform rear suspension support, and the hydro-pneumatic suspension oil cylinder upper supports, the cab rear suspension support, the frame circular beam and the platform rear suspension support are fixedly connected into a whole. The suspension cushion assembly comprises a cab side suspension combined cushion and a platform side suspension combined cushion, and each of the cab side suspension combined cushion and the platform side suspension combined cushion comprises an upper rubber cushion and a lower rubber cushion. The whole structure is simple and reliable, and the arrangement space is saved.

Description

Technical Field

[0001] The utility model relates to a frame integrated cab mounting structure and a mining dump truck, belonging to the field of mining vehicles. Background Art

[0002] At present, most of the cabs of mining dump trucks are offset cabs, and the cab mounts usually use rubber shock absorbers or coil spring shock absorbers to flexibly connect the cab to the chassis. More installation space usually needs to be reserved on the left and right longitudinal beams of the frame to fix the front and rear cab mounting brackets, resulting in limited layout space and poor comfort of the cab mounts. Summary of the Invention

[0003] Aiming at the problems existing in the above-mentioned prior art, the utility model provides a frame integrated cab mounting structure and a mining dump truck.

[0004] In order to achieve the above object, a frame integrated cab mounting structure adopted by the utility model includes:

[0005] A front cab mounting structure, including a front cab mounting bracket and a front bumper mounting bracket, and the front cab mounting bracket and the front bumper mounting bracket are integrated with a first cross beam;

[0006] A front platform mounting structure, including a front platform mounting bracket and a platform frame mounting bracket, and the front platform mounting bracket, the platform frame mounting bracket and the front bumper mounting bracket are integrated with the first cross beam;

[0007] A rear cab mounting structure, including upper brackets of left and right oil-gas suspension cylinders, a rear cab mounting bracket, a frame round beam and a rear platform mounting bracket, and the upper brackets of the left and right oil-gas suspension cylinders, the rear cab mounting bracket, the frame round beam and the rear platform mounting bracket are fixedly connected into an integral body;

[0008] A mounting cushion assembly, including a cab side mounting combined cushion and a platform side mounting combined cushion, and both the cab side mounting combined cushion and the platform side mounting combined cushion include an upper rubber cushion and a lower rubber cushion.

[0009] In some embodiments, the front cab mounting bracket and the platform frame mounting bracket are both of U-shaped beam structures.

[0010] In some embodiments, the front cab mounting bracket is respectively connected to the first cross beam and the front bumper mounting bracket, and the front cab mounting bracket is flexibly connected to the cab through the cab side mounting combined cushion; the left and right front bumper mounting brackets are fixedly welded to the front cab bumper.

[0011] In some embodiments, the platform frame mounting bracket is fixed to the outside of the first cross beam. The platform front suspension bracket is fixed to the platform frame mounting bracket, and the platform front suspension bracket is flexibly connected to the cab platform through a platform side suspension combined soft pad; the platform frame mounting bracket is fixedly connected to the front bumper mounting bracket by screwing.

[0012] In some embodiments, the cab rear suspension bracket is fixed to the upper part of the upper bracket of the left oil-gas suspension cylinder, and the platform rear suspension bracket is fixed to the upper part of the upper bracket of the right oil-gas suspension cylinder; the frame circular beam is respectively fixed to the cab rear suspension bracket and the platform rear suspension bracket.

[0013] In some embodiments, the cab side suspension combined soft pad includes an upper cab rubber soft pad and a lower cab rubber soft pad. The upper cab rubber soft pad is a combined structure of a metal sleeve and a rubber soft pad, and is placed in a circular hole of the lower cab hanger in a T shape.

[0014] In some embodiments, the lower cab rubber soft pad is located between the lower cab hanger and the cab front suspension bracket, and the upper cab rubber soft pad is located above the lower cab hanger.

[0015] In some embodiments, the platform side suspension combined soft pad includes an upper platform side rubber soft pad and a lower platform side rubber soft pad. The upper platform side rubber soft pad is in a T shape and is placed in a circular hole with a boss of the platform rear suspension bracket. A sleeve is installed between the upper platform side rubber soft pad and the lower platform side rubber soft pad.

[0016] In some embodiments, the lower platform side rubber soft pad is located between the cab platform and the platform rear suspension bracket, and the upper platform side rubber soft pad is located above the cab platform.

[0017] In a second aspect of the present invention, a mining dump truck is provided, and the frame integrated cab suspension structure described above is installed on the mining dump truck.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The cab and platform front suspension structure of the present invention integrates the cab front suspension bracket, the platform front suspension bracket, the front bumper mounting bracket and the first cross beam of the frame, which not only plays the role of fixing the front suspension damping soft pad, but also plays the role of fixing the cab front bumper. The overall structure is simple and reliable, and at the same time, the layout space of the front suspension brackets at the left and right longitudinal beams of the frame is saved.

[0020] 2. The cab rear suspension bracket, platform rear suspension bracket of the cab rear suspension structure of the present utility model are integrally designed with the upper brackets of the left and right oil-gas suspension cylinders and the frame round beam, effectively preventing the deformation that may occur due to the uneven force on the frame caused by the weight on the cab side being much greater than that on the platform side. At the same time, the layout space of the cab rear suspension bracket at the left and right longitudinal beams of the cab is saved. The frame round beam can also be used to fix the engine compartment cross beam, reducing the height of the mounting bracket body.

[0021] 3. The mounting soft pad assembly of the present utility model can fully mitigate the vibration and impact caused to the cab by the uneven road surface, reduce the replacement frequency of the rubber damping soft pads, and improve the comfort; a metal sleeve structure is added between the upper and lower combined soft pads of the mounting soft pad assembly and the mounting pin shaft of the suspension, which can effectively relieve the lateral impact on the rubber soft pads and solve the problem of rubber tearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0023] Figure 1 Structural schematic diagram of the cab front suspension integrated with the frame of the present utility model Figure 1 ;

[0024] Figure 2 Structural schematic diagram of the cab front suspension integrated with the frame of the present utility model Figure 2 ;

[0025] Figure 3 Structural schematic diagram of the cab front suspension integrated with the frame of the present utility model Figure 3 ;

[0026] Figure 4 Structural schematic diagram of the platform front suspension integrated with the frame of the present utility model;

[0027] Figure 5 Structural schematic diagram of the cab, platform rear suspension integrated with the frame of the present utility model;

[0028] Figure 6 Structural schematic diagram of the cab side suspension combined soft pad of the present utility model;

[0029] Figure 7 Structural schematic diagram of the platform side suspension combined soft pad of the present utility model;

[0030] In the figure: the first cross beam ①, the front suspension bracket of the cab ②, the combined soft cushion of the cab side suspension ③, the cab ④, the platform frame mounting bracket ⑤, the front suspension bracket of the platform ⑥, the combined soft cushion of the platform side suspension ⑦, the cab platform ⑧, the upper bracket of the left oil and gas suspension cylinder ⑨, the rear suspension bracket of the cab ⑩, the frame circular beam , the rear suspension bracket of the platform , the lower hanger of the cab , the right longitudinal beam of the frame , the upper bracket of the right oil and gas suspension cylinder , the mounting pin shaft of the suspension , the sleeve , the mounting bolt of the suspension , the mounting gasket of the suspension , the upper rubber soft cushion of the cab , the lower rubber soft cushion of the cab , the plain washer , the slotted nut , the pin shaft , the upper rubber soft cushion on the platform side , the lower rubber soft cushion on the platform side , the damping washer of the platform , the self-locking nut , the left longitudinal beam of the frame , the mounting bracket for the front bumper , the front bumper of the cab . Specific embodiments

[0031] To make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions of this application will be described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. Without conflict, the technical features in the embodiments of this application and the embodiments can be combined with each other.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for facilitating the description of 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 thus cannot be understood as a limitation on the protected content of the present utility model.

[0033] As Figures 1-7 shown, a frame integrated cab suspension structure includes a cab front suspension structure, a platform front suspension structure, a cab rear suspension structure and a suspension soft cushion assembly;

[0034] The cab front suspension structure includes the cab front suspension bracket ② and the mounting bracket for the front bumper The cab front suspension bracket ② and the front bumper mounting bracket Integrated with the first crossbeam①, saving the left longitudinal beam of the frame Cab front suspension bracket②, front bumper mounting bracket The cab front suspension bracket ② not only fixes the cab side suspension combined cushion ③, but also fixes the cab front bumper. The role of;

[0035] The platform front suspension structure includes a platform front suspension bracket ⑥, a platform frame mounting bracket ⑤, and the platform front suspension bracket ⑥, the platform frame mounting bracket ⑤ and the front guard mounting bracket Integrated with the first crossbeam①, saving the right longitudinal beam of the frame Platform front suspension bracket⑥, front guard mounting bracket The platform front suspension bracket ⑥ serves to fix the front protection installation bracket It also serves to fix the front bumper of the cab. The role of;

[0036] The cab rear suspension structure includes left and right oil-gas suspension cylinder upper brackets, cab rear suspension brackets ⑩, and frame round beams. 、Platform rear suspension bracket , upper brackets of left and right oil-gas suspension cylinders, rear suspension brackets of cab ⑩, frame round beams 、Platform rear suspension bracket The fixed connection is integrated, which improves the stability of the overall structure; cab rear suspension bracket ⑩, platform rear suspension bracket Integrated design with the left and right oil-gas suspension cylinder upper brackets saves the left longitudinal beam of the frame 、Right longitudinal beam of the frame Cab rear suspension bracket ⑩, platform rear suspension bracket The layout space;

[0037] The suspension cushion assembly includes a cab side suspension combined cushion ③ and a platform side suspension combined cushion ⑦, wherein the cab side suspension combined cushion ③ includes a cab upper rubber cushion And rubber pad under the cab , design the platform side suspension composite cushion⑦ into a rubber cushion on the platform side and rubber pads under the platform side The combined method can effectively reduce the vibration caused by the up and down bouncing of the vehicle. Compared with the traditional cab suspension structure with a rubber shock absorber cushion sandwiched between the cab and the suspension bracket, the utility model has better vibration reduction effect and longer service life.

[0038] In some embodiments, Figure 1As shown, the front suspension bracket ② of the cab is designed as a "U"-shaped beam structure and is fixedly screwed to the first crossbeam ① through 10 bolts and fixedly screwed to the front bumper mounting bracket through 4 bolts. The front bumper of the cab is fixedly welded to the left and right front bumper mounting brackets. The cab ④ and the front suspension bracket ② of the cab are flexibly connected through two combined soft pads ③ of the cab side suspension.

[0039] In some embodiments, as Figure 2 shown, the platform frame mounting bracket ⑤ is designed as a "U"-shaped beam structure and is fixedly screwed to the outside of the first crossbeam ① through 10 bolts. The front suspension bracket ⑥ of the platform is fixedly screwed to the platform frame mounting bracket ⑤ through 15 bolts. The front suspension bracket ⑥ of the platform and the cab platform ⑧ are flexibly connected through three combined soft pads ⑦ of the platform side suspension. The platform frame mounting bracket ⑤ and the front bumper mounting bracket are fixedly screwed to each other through 4 bolts. The front suspension bracket ⑥ of the platform, the platform frame mounting bracket ⑤, and the front bumper mounting bracket are integrally designed with the first crossbeam ①, with a compact and reliable structure. There is no need to reserve installation holes for the front suspension bracket ⑥ of the platform and the front bumper mounting bracket, saving the installation space of the right longitudinal beam of the frame.

[0040] In some embodiments, as Figure 5 shown, the rear suspension bracket ⑩ of the cab is fixed to the upper part of the upper bracket ⑨ of the left oil and gas suspension cylinder through 10 bolts. The rear suspension bracket of the platform is fixed to the upper part of the upper bracket of the right oil and gas suspension cylinder through 10 bolts, saving the layout space of the rear suspension bracket ⑩ of the cab and the rear suspension bracket of the platform at the left and right longitudinal beams of the frame.

[0041] In some embodiments, as Figure 5 shown, the round beam of the frame is respectively fixedly screwed to the rear suspension bracket ⑩ of the cab and the rear suspension bracket of the platform through 10 bolts, making the left longitudinal beam of the frame, the upper bracket ⑨ of the left oil and gas suspension cylinder, the rear suspension bracket ⑩ of the cab, the rear suspension bracket of the platform, the upper bracket of the right oil and gas suspension cylinder, and the right longitudinal beam of the frame form an integral structure, enhancing the overall strength of the frame.

[0042] In some embodiments, as Figure 6 shown, the combined soft pad ③ of the cab side suspension is composed of an upper rubber soft pad of the cab , the rubber cushion under the cab Combined, the rubber cushion on the cab Is a combined structure of a metal sleeve and a rubber cushion, placed in the round hole of the lower cab hanger in a "T" shape The suspension mounting pin Passes through the suspension mounting gasket , the rubber cushion on the cab , the rubber cushion under the cab , flat washer , the lower part is limited and fixed by the pin Passing through the slotted nut . The rubber cushion under the cab Is located in the middle of the lower cab hanger And the front suspension bracket ② of the cab, used to buffer the impact vibration caused by the downward jump of the cab. The rubber cushion on the cab Is located above the lower cab hanger , used to buffer the impact vibration caused by the upward jump of the cab.

[0043] In some embodiments, such as Figure 7 Shown, the platform side suspension combined cushion ⑦ is composed of the upper rubber cushion on the platform side , the lower rubber cushion on the platform side Combined, the upper rubber cushion on the platform side Is placed in a "T" shape in the round hole with a boss of the rear platform suspension bracket . The suspension mounting bolt Passes through the upper rubber cushion on the platform side , the rear platform suspension bracket , the lower rubber cushion on the platform side , the platform shock absorber gasket , the lower part is limited and fixed by the self-locking nut To form a clamping structure in the vertical direction. The upper rubber cushion on the platform side And the lower rubber cushion on the platform side A sleeve Is installed in the middle, which can effectively relieve the lateral impact on the rubber cushion and solve the problem of rubber tearing.

[0044] The lower rubber cushion on the platform side Is located in the middle of the cab platform ⑧ and the rear platform suspension bracket , used to buffer the impact vibration caused by the downward jump of the platform. The upper rubber cushion on the platform side Is located above the cab platform ⑧, used to buffer the impact vibration caused by the upward jump of the platform.

[0045] In the second aspect of the present invention, a mining dump truck is provided, and the frame integrated cab suspension structure described above is installed on the mining dump truck.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A frame-integrated cab suspension structure, characterized in that: include: A cab front suspension structure, comprising a cab front suspension bracket and a front bumper mounting bracket, wherein the cab front suspension bracket and the front bumper mounting bracket are integrated with the first crossbeam; The platform front suspension structure comprises a platform front suspension bracket and a platform frame mounting bracket, wherein the platform front suspension bracket, the platform frame mounting bracket and the front guard mounting bracket are integrated with the first cross beam; The cab rear suspension structure includes left and right oil-gas suspension cylinder upper brackets, cab rear suspension brackets, frame round beams, and platform rear suspension brackets. The left and right oil-gas suspension cylinder upper brackets, cab rear suspension brackets, frame round beams, and platform rear suspension brackets are fixedly connected as an integrated unit. The suspension cushion assembly comprises a cab side suspension combined cushion and a platform side suspension combined cushion, wherein the cab side suspension combined cushion and the platform side suspension combined cushion both comprise an upper rubber cushion and a lower rubber cushion.

2. The frame-integrated cab suspension structure according to claim 1, characterized in that: The cab front suspension bracket and the platform frame mounting bracket are both U-beam structures.

3. A frame-integrated cab suspension structure according to claim 1 or 2, characterized in that: The cab front suspension bracket is connected to the first crossbeam and the front bumper mounting bracket respectively, and the cab front suspension bracket is flexibly connected to the cab through the cab side suspension combined cushion; the left and right front bumper mounting brackets are welded and fixed to the cab front bumper.

4. A frame-integrated cab suspension structure according to claim 1 or 2, characterized in that: The platform frame mounting bracket is fixed on the outside of the first cross beam, the platform front suspension bracket is fixed to the platform frame mounting bracket, the platform front suspension bracket is flexibly connected to the cab platform through the platform side suspension combined cushion; the platform frame mounting bracket is screwed and fixed to the front guard mounting bracket.

5. The frame-integrated cab suspension structure according to claim 1, characterized in that: The cab rear suspension bracket is fixed to the upper part of the left oil-gas suspension cylinder upper bracket, and the platform rear suspension bracket is fixed to the upper part of the right oil-gas suspension cylinder upper bracket; the frame round beam is fixed to the cab rear suspension bracket and the platform rear suspension bracket respectively.

6. The frame-integrated cab suspension structure according to claim 1, characterized in that: The cab side suspension combined cushion comprises an upper cab rubber cushion and a lower cab rubber cushion. The upper cab rubber cushion is a combined structure of a metal sleeve and a rubber cushion and is placed in a round hole of a lower cab hanging ear in a T-shape.

7. The frame-integrated cab suspension structure according to claim 6, characterized in that: The lower rubber cushion of the cab is located between the lower lifting eye of the cab and the front suspension bracket of the cab, and the upper rubber cushion of the cab is located on the upper part of the lower lifting eye of the cab.

8. The frame-integrated cab suspension structure according to claim 1, characterized in that: The platform side suspension combined cushion includes an upper rubber cushion on the platform side and a lower rubber cushion on the platform side. The upper rubber cushion on the platform side is T-shaped and is placed in a round hole with a boss on the platform rear suspension bracket. A sleeve is installed between the upper rubber cushion on the platform side and the lower rubber cushion on the platform side.

9. The frame-integrated cab suspension structure according to claim 8, characterized in that: The platform side lower rubber pad is located between the cab platform and the platform rear suspension bracket, and the platform side upper rubber pad is located on the upper part of the cab platform.

10. A mining dump truck, characterized in that: The mining dump truck is equipped with a frame-integrated cab suspension structure as described in any one of claims 1 to 9.

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