A detachable rubber bearing assembly and an articulated dump truck

Abstract

The utility model discloses a detachable rubber bearing assembly and an articulated dump truck, comprising a first fixing component, a rubber bearing, a second fixing component, a sleeve and a third fixing component; the first fixing component is assembled on the bottom surface of a connecting cylinder in an articulated body; the rubber bearing is assembled on the first fixing component; the second fixing component is mounted on the first fixing component and is used to limit the rubber bearing on the first fixing component; the sleeve fixed on the front end of the A-frame is used to sleeve the rubber bearing therein; the third fixing component is mounted on the sleeve and is used to limit the rubber bearing in the sleeve. The utility model can not only meet the corresponding shock absorption effect, but also enable faster disassembly and installation.

Description

Technical Field

[0001] The utility model relates to a detachable rubber bearing assembly, belonging to the technical field of articulated dump trucks. Background Art

[0002] The suspension system of articulated dump trucks generally adopts a unique A-frame structure, and rubber bearings are important shock-absorbing components in the A-frame. During the driving of the articulated dump truck, the A-frame balances the unbalanced force on the vehicle. Due to the harsh driving conditions of the articulated dump truck, the suspension system of the articulated mining car is frequently impacted by various extreme forces, which will inevitably shorten the life of the rubber parts.

[0003] When the traditional rubber bearing is installed with the sleeve on the A-frame, a press is needed to press the rubber bearing in. When replacing, the entire A-frame needs to be removed from the vehicle and placed on a press to press out the damaged rubber bearing so that a new rubber bearing can be replaced. The maintenance time is relatively long. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a detachable and installable rubber bearing assembly, which can not only meet the corresponding shock absorption effect, but also enable faster disassembly and installation.

[0005] The utility model is implemented according to the following technical solutions:

[0006] In a first aspect, the utility model provides a detachably mounted rubber bearing assembly, comprising:

[0007] A first fixing member, mounted on the bottom surface of the connecting cylinder in the hinged body;

[0008] A rubber bearing, mounted on the first fixing component;

[0009] a second fixing component, mounted on the first fixing component, and used to limit the rubber bearing on the first fixing component;

[0010] A sleeve fixed to the front end of the A-frame, used for sleeve-fitting the rubber bearing therein;

[0011] The third fixing component is mounted on the sleeve and is used to limit the rubber bearing in the sleeve.

[0012] In some embodiments, the first fixing component is a fixing pin, comprising:

[0013] A mounting plate, which is provided with a plurality of through holes and is fixed to the bottom surface of the connecting tube by fasteners;

[0014] A stepped installation shaft is formed by vertically extending downward from the center of the installation plate, the installation shaft passes through the central stepped hole of the rubber bearing, and the second fixing component is installed at the end of the installation shaft.

[0015] In some embodiments, the second fixing component is a nut, an end of the installation shaft is provided with an external thread, and the nut is screwed onto the external thread of the installation shaft to lock the rubber bearing onto the installation shaft.

[0016] In some embodiments, the top surface of the rubber bearing and the top of the sleeve as well as the bottom surface of the rubber bearing and the third fixing component are axially limited by a stop structure.

[0017] In some embodiments, the outer contour of the rubber bearing is a cylinder, and an annular notch is provided at the edge of the upper axial surface of the rubber bearing; an annular flange is provided on the inner side wall of the top opening surface of the sleeve, and a stop structure is formed by the cooperation of the annular flange and the annular notch.

[0018] In some embodiments, the outer contour of the rubber bearing is a cylinder, and an annular notch is provided at the edge of the lower axial surface of the rubber bearing; the third fixing component is an annular baffle, which is mounted on the rubber bearing located at the annular notch, and a stop structure is formed by the inner side surface of the annular baffle cooperating with the annular notch.

[0019] In some embodiments, the annular baffle is provided with a circle of through holes evenly arranged along the circumference, the annular bottom surface of the sleeve is provided with threaded holes corresponding to the through holes one by one, and the annular baffle is fixed to the annular bottom surface of the sleeve by multiple screws.

[0020] In some embodiments, the rubber bearing comprises:

[0021] The inner steel structure has a lantern-shaped outer profile and an axial stepped hole inside;

[0022] A rubber structure, laid on the outer peripheral surface of the inner steel structure;

[0023] A pair of outer steel structures facing each other are laid on the outer peripheral surface of the rubber structure, so that the outer contour of the rubber bearing is a cylinder.

[0024] In some embodiments, the stepped hole consists of a conical hole that is wider at the top and narrower at the bottom and a circular hole that has a smaller diameter than the conical hole.

[0025] In a second aspect, the utility model provides an articulated dump truck, comprising:

[0026] Front frame, rear frame;

[0027] An articulated body connected between the front frame and the rear frame;

[0028] The A-frame has one end connected to the hinged body through the rubber bearing assembly, and the remaining two ends are connected to the half-axle housings at both ends of the axle close to the wheel hub.

[0029] Beneficial effects of the utility model:

[0030] 1. The rubber bearing has a simple structure and can meet the corresponding shock absorption effect;

[0031] 2. It is easy to disassemble and install the rubber bearing from the hinged body and the A-frame without removing the A-frame or using large equipment such as presses for disassembly;

[0032] 3. For articulated dump trucks with different load capacities (A-frames use rubber bearings), the rubber bearing assembly is stable and reliable, and similar rubber bearings of different sizes can be designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0034] In the attached picture:

[0035] Figure 1 This is a stereoscopic diagram of the application of the rubber bearing assembly of the utility model;

[0036] Figure 2 This is a cross-sectional view of the rubber bearing assembly of the utility model;

[0037] Figure 3 for Figure 2 A partial enlarged view of

[0038] Figure 4 This is an exploded view of the rubber bearing assembly of the utility model;

[0039] Figure 5 This is a cross-sectional view of the rubber bearing of the present utility model.

[0040] Figure identification: 1- hinged body, 101- hinged shaft, 102- connecting cylinder, 2- rubber bearing assembly, 201- fixed pin shaft, 202- screw, 203- rubber bearing, 204- nut, 205- sleeve, 206- annular baffle, 3- A-type frame, 20301- inner steel structure, 20302- rubber structure, 20303- outer steel structure.

[0041] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a detachably mounted rubber bearing assembly comprises a first fixing component, a rubber bearing 203, a second fixing component, a sleeve 205 and a third fixing component; the first fixing component is assembled on the bottom surface of the connecting cylinder 102 in the hinged body 1; the rubber bearing 203 is assembled on the first fixing component; the second fixing component is mounted on the first fixing component and is used to limit the rubber bearing 203 on the first fixing component; the sleeve 205 fixed on the front end of the A-frame 3 is used to sleeve the rubber bearing 203 therein; the third fixing component is mounted on the sleeve 205 and is used to limit the rubber bearing 203 in the sleeve 205.

[0046] The first fixing component mentioned above is further described below.

[0047] like Figure 2 , Figure 3 , Figure 4As shown, the first fixing component is a fixing pin 201, which includes a mounting plate and a stepped mounting shaft extending vertically downward from the center of the mounting plate; a plurality of through holes are provided on the mounting plate, which is fixed to the bottom surface of the connecting cylinder 102 by screws 202; the mounting shaft passes through the central stepped hole of the rubber bearing 203, and the second fixing component is installed at the end of the mounting shaft.

[0048] The second fixing component mentioned above is further described below.

[0049] like Figure 2 , Figure 3 , Figure 4 As shown, the second fixing component is a nut 204, and the end of the installation shaft is provided with an external thread. The nut 204 is screwed on the external thread of the installation shaft to lock the rubber bearing 203 on the installation shaft.

[0050] Further solutions: Figure 2 , Figure 3 , Figure 5 As shown, the top surface of the rubber bearing 203 and the top of the sleeve 205 as well as the bottom surface of the rubber bearing 203 and the third fixing component are axially limited by a stop structure.

[0051] Preferred solution: the outer contour of the rubber bearing 203 is a cylinder, and an annular notch is provided at the edge of the upper axial surface of the rubber bearing 203; the inner wall of the top opening surface of the sleeve 205 is provided with an annular flange, and a stop structure is formed by the cooperation of the annular flange and the annular notch.

[0052] Preferred solution: the outer contour of the rubber bearing 203 is a cylinder, and an annular notch is provided at the edge of the lower axial surface of the rubber bearing 203; the third fixing component is an annular baffle 206, which is mounted on the rubber bearing 203 at the annular notch, and a stop structure is formed by the inner side surface of the annular baffle 206 cooperating with the annular notch.

[0053] like Figure 2 , Figure 3 , Figure 4 As shown, the annular baffle 206 is provided with a circle of through holes evenly arranged along the circumferential direction, and the annular bottom surface of the sleeve 205 is provided with threaded holes corresponding to the through holes one by one, and the annular baffle 206 is fixed to the annular bottom surface of the sleeve 205 by multiple screws 202.

[0054] The above-mentioned rubber bearing is further described below.

[0055] like Figure 5 As shown, the rubber bearing 203 is made of steel material inside and outside, and filled with rubber material in the middle.

[0056] The rubber bearing 203 is composed of three parts: an inner steel structure 20301, a rubber structure 20302 and an outer steel structure 20303; the outer contour of the inner steel structure 20301 is a lantern shape, and an axial stepped hole is provided inside, and the stepped hole is composed of a tapered hole that is wide at the top and narrow at the bottom and a circular hole with a diameter smaller than the tapered hole. The rubber structure 20302 is laid on the outer peripheral surface of the inner steel structure 20301. A pair of outer steel structures 20303 facing each other are laid on the outer peripheral surface of the rubber structure 20302, so that the outer contour of the rubber bearing 203 is a cylinder.

[0057] During the manufacturing process, after the two sides of the outer steel structure 20303 of the rubber bearing 203 are fixed with tooling, the middle rubber structure 20302 is integrally formed by vulcanization, and the thickness is evenly filled on the outer side of the inner steel structure 20301 and the inner side of the outer steel structure 20303. There should be no cavities and bubbles during the vulcanization process, otherwise the rubber strength will decrease and the service life of the rubber bearing 203 will be shortened.

[0058] It should be noted that the stepped hole on the rubber bearing 203 is installed in the up and down direction and the position cannot be changed, otherwise the shock absorption effect will be affected.

[0059] like Figure 1 As shown, the articulated dump truck is divided into a front frame and a rear frame, with an articulated body 1 in the middle. To be specific, the articulated shaft 101 of the articulated body 1 is inserted into the connecting tube 102 inside the articulated body and at the front end of the rear frame. It connects the front and rear frames and drives the articulated body 1 and the rear frame to rotate together when the front frame rotates. The rubber bearing assembly 2 connects the articulated body 1 and the A-frame 3. It transmits the ground unbalanced force on the axle to the A-frame 3, and then to the frame connected to the articulated body 1 by the rubber bearing assembly 2. One end of the A-frame 3 is connected to the rubber bearing assembly 2, and the other two ends are connected to the half-axle housings near the wheel hub at both ends of the axle.

[0060] The specific implementation process of the above-mentioned rubber bearing assembly is given below:

[0061] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown in the figure, for the structural design of the rubber bearing 203 of the middle A-frame 3 of a certain articulated dump truck, the structure of the bottom connecting plate of the connecting cylinder 102 from top to bottom is respectively: a fixed pin 201, a screw 202, a rubber bearing 203, a sleeve 205, an annular baffle 206, a screw 202 and a nut 204. The bottom of the connecting cylinder 102 is designed with a matching fixed pin 201, and the contact surface of the fixed pin 201 is locked at the bottom of the connecting cylinder 2 by the screw 202. The other side of the fixed pin 201 is a conical circular surface, and is inserted into the stepped hole of the inner steel spherical surface 20301 of the rubber bearing 203. Finally, the bottom of the fixed pin 201 is locked by the nut 204, and the rubber bearing 203 in the sleeve 205 is locked by the screw 202 with the annular baffle 206.

[0062] When the rubber bearing 203 is installed on the vehicle for the first time, the sleeve 205 and the annular baffle 206 can be installed and matched in advance, the sleeve 205 and the A-frame 3 are welded together, and fixed to the axle with an electric hoist or a jack; and the fixing pin 201 can be fixed to the bottom of the connecting tube 102 with screws 202 in advance.

[0063] When the rubber bearing 203 is replaced during vehicle maintenance, the A-frame 3 does not need to be removed from the end fixed to the axle. It is only necessary to support the area near the sleeve 205 with a jack, remove the flange nut 204, and smash the rubber bearing 203 and the fixing pin 201 to separate the two parts. After the annular baffle 206 is removed and a new rubber bearing 203 is replaced, the A-frame 3 can be restored.

[0064] In summary, the rubber bearing provided by the utility model has a simple structure and can meet the corresponding shock absorption effect; the detachable rubber bearing assembly provided by the utility model can facilitate the disassembly and installation of the rubber bearing from the hinged body and the A-frame without removing the A-frame or using large equipment such as a press for disassembly; for articulated dump trucks with different load capacities (A-frames use rubber bearings), the rubber bearing assembly is stable and reliable, and similar rubber bearings of different sizes can be designed.

[0065] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0066] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0067] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A detachable rubber bearing assembly, characterized in that: include: A first fixing member, mounted on the bottom surface of the connecting cylinder in the hinged body; A rubber bearing, mounted on the first fixing component; a second fixing component, mounted on the first fixing component, and used to limit the rubber bearing on the first fixing component; A sleeve fixed to the front end of the A-frame, used for sleeve-fitting the rubber bearing therein; The third fixing component is mounted on the sleeve and is used to limit the rubber bearing in the sleeve.

2. A detachably mounted rubber bearing assembly according to claim 1, characterized in that: The first fixing component is a fixing pin, comprising: A mounting plate, which is provided with a plurality of through holes and is fixed to the bottom surface of the connecting tube by fasteners; A stepped installation shaft is formed by vertically extending downward from the center of the installation plate, the installation shaft passes through the central stepped hole of the rubber bearing, and the second fixing component is installed at the end of the installation shaft.

3. A detachably mounted rubber bearing assembly according to claim 2, characterized in that: The second fixing component is a nut, and an external thread is provided at the end of the installation shaft. The nut is screwed onto the external thread of the installation shaft to lock the rubber bearing onto the installation shaft.

4. The detachably mounted rubber bearing assembly according to claim 1, characterized in that: The top surface of the rubber bearing and the top of the sleeve as well as the bottom surface of the rubber bearing and the third fixing component are axially limited by a stop structure.

5. A detachably mounted rubber bearing assembly according to claim 4, characterized in that: The outer contour of the rubber bearing is a cylinder, and an annular notch is provided at the edge of the upper axial surface of the rubber bearing; An inner side wall of the top opening surface of the sleeve is provided with an annular flange, and a stop structure is formed by the cooperation of the annular flange and the annular notch.

6. The detachably mounted rubber bearing assembly according to claim 4, characterized in that: The outer contour of the rubber bearing is a cylinder, and an annular notch is provided at the edge of the lower axial surface of the rubber bearing; The third fixing component is an annular baffle, which is sleeved on a rubber bearing located at the annular notch, and a stop structure is formed by the inner side surface of the annular baffle cooperating with the annular notch.

7. A detachably mounted rubber bearing assembly according to claim 6, characterized in that: The annular baffle is provided with a circle of through holes evenly arranged along the circumferential direction, the annular bottom surface of the sleeve is provided with threaded holes corresponding to the through holes one by one, and the annular baffle is fixed to the annular bottom surface of the sleeve by a plurality of screws.

8. The detachably mounted rubber bearing assembly according to claim 1, characterized in that: The rubber bearing comprises: The inner steel structure has a lantern-shaped outer profile and an axial stepped hole inside; A rubber structure, laid on the outer peripheral surface of the inner steel structure; A pair of outer steel structures facing each other are laid on the outer peripheral surface of the rubber structure, so that the outer contour of the rubber bearing is a cylinder.

9. A detachably mounted rubber bearing assembly according to claim 8, characterized in that: The stepped hole is composed of a conical hole which is wider at the top and narrower at the bottom and a circular hole which has a smaller diameter than the conical hole.

10. An articulated dump truck, characterized in that: include: Front frame, rear frame; An articulated body connected between the front frame and the rear frame; An A-type frame, one end of which is connected to the hinged body through the rubber bearing assembly described in any one of claims 1 to 9, and the remaining two ends are connected to the half-axle housings at both ends of the axle close to the wheel hub.

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