Excavator cover plate mounting structure and excavator

Abstract

The utility model provides an excavator cover plate mounting structure and an excavator. The excavator cover plate mounting structure comprises a hydraulic oil tank mounting support, a side framework mounting support, a cover plate arranged between the two mounting supports, and a first bolt, a first through hole is formed in one side of the cover plate, and an oil tank support through hole matched with the first through hole is formed in the hydraulic oil tank mounting support; a first through hole is formed in the cover plate, a lining with an edge is arranged in the first through hole, a flexible gasket is further arranged between the lining with the edge and the cover plate, and the first bolt penetrates through the lining with the edge and the through hole of the oil tank support to achieve fastening and flexible connection between one side of the cover plate and the hydraulic oil tank installation support. The cover plate can be prevented from generating assembly stress and shearing force between the cover plate and the hydraulic oil tank.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator technical field especially relates to a kind of excavator cover plate mounting structure and excavator. BACKGROUND

[0002] Traditional excavator cover plate installation is installed and fixed by pure bolt+washer form, and this installation mode has the following defects:

[0003] 1, middle cover plate one end is fixed on the installation support of oil tank, the other end is fixed on the installation support of skeleton, and two end connecting components are respectively installed on left / right side platform, so that the installation hole of middle cover plate two ends usually exists larger installation error and forcibly assembles, causes assembly stress;

[0004] 2, since excavator can exist hydraulic oil impact when working, there is larger vibration frequency and amplitude in hydraulic oil tank, and relatively large shear force is generated between hydraulic oil tank and middle cover plate, and this shear force can directly act on installation bolt, causing the installation bolt of fixed middle cover plate to appear loose fault frequently, even due to the shear force being too large, so that the installation bolt or installation support at this place directly breaks down;

[0005] 3, excavator needs to disassemble middle cover plate when maintaining main valve, and in this disassembly process, the initial pre-tightening force of bolt and thread glue are damaged, thereby intensifying bolt loosening.

[0006] Therefore, an excavator cover plate mounting structure and excavator are needed, which can avoid assembly stress of middle cover plate and shear force between middle cover plate and hydraulic oil tank. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing an excavator cover plate mounting structure and excavator, to solve the technical problems that traditional excavator cover plate mounting structure is prone to assembly stress and shear force.

[0008] To achieve the above-mentioned purpose, in the first aspect, the utility model provides an excavator cover plate mounting structure, comprising: hydraulic oil tank installation support, side skeleton installation support and cover plate arranged between the two installation supports, and first bolt;

[0009] One side of the cover plate is provided with first through hole, and the oil tank support through hole matched with the first through hole is arranged on the hydraulic oil tank installation support;

[0010] The first through hole is provided with a belt along the bushing, and a flexible gasket is further arranged between the belt along the bushing and the cover plate, and the first bolt passes through the belt along the bushing and the oil tank support through hole to realize the fastening flexible connection between one side of the cover plate and the hydraulic oil tank installation support.

[0011] As a further improvement of the above-mentioned scheme, the excavator cover plate mounting structure further comprises a second bolt; the other side of the cover plate is provided with a U-shaped hole or a waist-shaped hole, and the side frame mounting support is provided with a side frame support through hole matched with the U-shaped hole or the waist-shaped hole;

[0012] The second bolt passes through the U-shaped hole or the waist-shaped hole and the side frame support through hole to achieve fastening connection of the other side of the cover plate with the side frame support.

[0013] As a further improvement of the above-mentioned scheme, the diameter of the first through hole is greater than the diameter of the oil tank support through hole.

[0014] As a further improvement of the above-mentioned scheme, the belt along the bushing comprises a bushing body and a rim arranged at one end of the bushing body.

[0015] The other end of the bushing body abuts against the upper surface of the hydraulic oil tank mounting support through the first through hole, and the first bolt is pressed on the upper surface of the rim.

[0016] As a further improvement of the above-mentioned scheme, the flexible gasket is arranged between the lower surface of the rim and the upper surface of the hydraulic oil tank mounting support.

[0017] As a further improvement of the above-mentioned scheme, the flexible gasket is made of rubber.

[0018] In a second aspect, the utility model also provides a kind of excavator, comprising the excavator cover plate mounting structure of the first aspect.

[0019] Due to the above technical scheme, the present application has the following beneficial effects:

[0020] The utility model provides a kind of excavator cover plate mounting structure, comprising: hydraulic oil tank mounting support, side frame mounting support and being arranged between two mounting supports cover plate and first bolt;The side of the cover plate is provided with first through hole, and the hydraulic oil tank mounting support is provided with oil tank support through hole matched with the first through hole;The first through hole is provided with belt along bushing, and flexible gasket is further provided between belt along bushing and the cover plate, and the first bolt passes through belt along bushing and oil tank support through hole to realize the fastening flexible connection of the side of the cover plate with the hydraulic oil tank mounting support;In the utility model, the installation bolt of the side of hydraulic oil tank and cover plate is improved thread fastening force when bolt is tightened by adopting belt along bushing to improve the vibration resistance of first bolt, and flexible gasket is further provided between belt along bushing and the cover plate, relative to traditional metal gasket, with flexible connection to replace conventional rigid connection, so as to further reduce the vibration impact load suffered by first bolt;

[0021] The excavator cover plate mounting structure further comprises a second bolt; the other side of the cover plate is provided with a U-shaped hole or a waist-shaped hole, a side frame support seat through hole matched with the U-shaped hole or the waist-shaped hole on the side frame mounting support; the second bolt passes through the U-shaped hole or the waist-shaped hole and the side frame support seat through hole to realize fastening connection of the other side of the cover plate and the side frame support seat; the mounting hole of the cover plate on the side of the side frame adopts the form of the U-shaped hole or the waist-shaped hole, so that the cumulative error of both ends of the cover plate can be eliminated, and assembly stress is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0023] Figure 1 Part of the excavator cover plate mounting structure disclosed by the present application is shown in the sectional view;

[0024] Figure 2 The sectional view of the belt along the bushing disclosed by the present application is shown in the sectional view;

[0025] Figure 3 The three-dimensional view of the excavator cover plate mounting structure disclosed by the present application is shown in the sectional view;

[0026] Figure 4 The sectional view of the excavator cover plate mounting structure disclosed by the present application is shown in the sectional view; Figure 3 The sectional view of the excavator cover plate mounting structure disclosed by the present application is shown in the sectional view;

[0027] Reference signs:

[0028] 1, hydraulic oil tank mounting support; 11, oil tank support through hole; 2, side frame mounting support; 21, side frame support through hole; 3, cover plate; 31, first through hole; 32, U-shaped hole or waist-shaped hole; 4, first bolt; 5, belt along bushing; 51, bushing body; 52, edge; 6, flexible gasket; 7, second bolt.

[0029] The implementation, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0030] With reference to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0031] It should be noted that all the directional indications (such as up, down, and the like) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0032] In addition, the descriptions such as "first", "second", and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features.

[0033] Furthermore, the technical solutions of the various embodiments of the present application can be combined with each other, but must be based on the fact that they can be realized by those skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0034] Example 1

[0035] Referring to Figures 1-4 The present application provides a kind of excavator cover plate 3 installation structure, comprising: hydraulic oil tank mounting support 1, side skeleton mounting support 2 and being arranged between two mounting supports cover plate 3, and first bolt 4 and second bolt 7;

[0036] One side of the cover plate 3 is provided with a first through hole 31, and the hydraulic oil tank mounting support 1 is provided with an oil tank support through hole 11 matched with the first through hole 31;The diameter of the first through hole 31 is greater than the diameter of the oil tank support through hole 11;

[0037] The first through hole 31 is provided with a belt along the bushing 5, and a flexible gasket 6 is further arranged between the belt along the bushing 5 and the cover plate 3, and the first bolt 4 passes through the belt along the bushing 5 and the oil tank support through hole 11 to realize the flexible connection of the one side of the cover plate 3 and the hydraulic oil tank mounting support 1;

[0038] The other side of the cover plate 3 is provided with a U-shaped hole or a waist-shaped hole 32, and the side skeleton mounting support 2 is provided with a side skeleton support through hole 21 matched with the U-shaped hole or the waist-shaped hole 32;

[0039] The second bolt 7 passes through the U-shaped hole or the waist-shaped hole 32 and the side frame support through hole 21 to achieve fastening connection of the other side of the cover plate 3 with the side frame support;

[0040] In the utility model, the mounting bolt of the hydraulic oil tank and one side of the cover plate 3 is improved by adopting the belt along the bush 5 to improve the thread fastening force when the bolt is tightened to improve the anti-vibration capacity of the first bolt 4, and in addition, the flexible gasket 6 is further arranged between the belt along the bush 5 and the cover plate 3, and the flexible connection is used to replace the conventional rigid connection relative to the traditional metal gasket, so that the vibration impact load borne by the first bolt 4 can be further reduced; specifically, the installation of the cover plate 3 on the hydraulic oil tank adopts the cooperation of the flexible gasket 6 and the belt along the bush 5, the belt along the bush 5 is a T-shaped belt shoulder bush with a large upper diameter and a small lower diameter, and the lower part of the bush is designed to have a height equal to the sum of the thickness of the cover plate 3 and the thickness of the flexible gasket 6; the flexible gasket 6 is assembled between the cover plate 3 and the belt along the bush 5, and the first bolt 4 can prevent the cover plate 3 from jumping up and down and vibrating abnormally after being tightened; the diameters of the two mounting holes of the cover plate 3 at the end of the hydraulic oil tank need to be greater than the lower diameter of the belt along the bush 5 by 3-5 mm, and the belt along the bush 5 is installed at the center position of the two mounting holes of the cover plate 3. Because the lower part of the belt along the bush 5 is higher than the thickness of the cover plate 3, the cover plate 3 will not be completely fixed when the first bolt 4 is tightened. In this way, the shearing force caused by the pulling of the cover plate 3 due to the vibration of the hydraulic oil tank can be avoided, so that the loosening of the bolt connection structure due to impact vibration can be avoided;

[0041] Referring to Figure 4 The excavator cover plate 3 mounting structure further includes a second bolt 7; the other side of the cover plate 3 is provided with a U-shaped hole or a waist-shaped hole 32, and the side frame mounting support 2 is provided with a side frame support through hole 21 matched with the U-shaped hole or the waist-shaped hole 32; the second bolt 7 passes through the U-shaped hole or the waist-shaped hole 32 and the side frame support through hole 21 to achieve fastening connection of the other side of the cover plate 3 with the side frame support; the mounting hole of the cover plate 3 at one side of the side frame adopts a U-shaped hole or a waist-shaped hole, so that the cumulative error of the two ends of the cover plate 3 can be eliminated, and assembly stress can be avoided;

[0042] The excavator cover plate 3 mounting structure can avoid the generation of assembly stress of the cover plate 3 and the formation of mutual shearing force with the hydraulic oil tank, thereby reducing the vibration impact load borne by the bolt connection structure, preventing the loosening of the bolt or the cracking of the relevant connection part, avoiding the falling of the cover plate 3, effectively solving the after-sales problem, and improving the product reliability.

[0043] As a preferred embodiment, the belt along the bush 5 includes a bush body 51 and a rim 52 arranged at one end of the bush body 51;

[0044] The other end of the bushing body 51 passes through the first through hole 31 and abuts against the upper surface of the hydraulic oil tank mounting support 1; the first bolt 4 is pressed on the upper surface of the rim 52.

[0045] As a preferred embodiment, the flexible gasket 6 is arranged between the lower surface of the rim 52 and the upper surface of the hydraulic oil tank mounting support 1.

[0046] As a preferred embodiment, the flexible gasket 6 is made of rubber.

[0047] Embodiment 2

[0048] Referring to Figure 3 The utility model also provides a kind of excavator, including the mounting structure of the utility model for the cover plate 3 of one kind provided in embodiment 1;One end of cover plate 3 is fixed on the mounting support on the hydraulic oil tank by two first through holes 31 spaced apart, and the other end is fixed on the mounting support of side skeleton by two U-shaped holes or waist-shaped holes 32 spaced apart.Excavator works, and hydraulic oil tank can vibrate, but the installation of cover plate 3 on hydraulic oil tank adopts the form of flexible gasket 6+with rim bushing 5, after first bolt 4 is tightened, this place connection structure will no longer be rigid connection but flexible connection, can avoid shear force between hydraulic oil tank and cover plate 3 when vibrating, reduce the impact vibration suffered by bolt connection structure, to avoid bolt loosening.

[0049] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made under the utility model concept of the utility model, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A cover plate mounting structure for an excavator, characterized by comprising: The excavator cover plate mounting structure comprises a hydraulic oil tank mounting support, a side frame mounting support and a cover plate arranged between the two mounting supports, and a first bolt; One side of the cover plate is provided with a first through hole, and the hydraulic oil tank mounting support is provided with an oil tank support through hole matched with the first through hole; A belt following bushing is arranged in the first through hole, a flexible gasket is further arranged between the belt following bushing and the cover plate, and the first bolt passes through the belt following bushing and the oil tank support through hole to achieve the fastening flexible connection of the one side of the cover plate and the hydraulic oil tank mounting support. The excavator cover plate mounting structure further comprises a second bolt; the other side of the cover plate is provided with a U-shaped hole or a waist-shaped hole, and the side frame mounting support is provided with a side frame support through hole matched with the U-shaped hole or the waist-shaped hole; 2. The cover plate mounting structure for an excavator according to claim 1, characterized in that, The second bolt passes through the U-shaped hole or the waist-shaped hole and the side frame support through hole to achieve the fastening connection of the other side of the cover plate and the side frame support. The diameter of the first through hole is greater than the diameter of the oil tank support through hole.

3. The cover plate mounting structure for an excavator according to claim 1 or 2, characterized in that, The belt following bushing comprises a bushing body and a rim arranged at one end of the bushing body; 4. The cover plate mounting structure for an excavator according to claim 3, characterized in that The other end of the bushing body abuts against the upper surface of the hydraulic oil tank mounting support through the first through hole; and the first bolt is pressed on the upper surface of the rim. The flexible gasket is arranged between the lower surface of the rim and the upper surface of the hydraulic oil tank mounting support.

5. The cover plate mounting structure for an excavator according to claim 4, characterized in that The flexible gasket is made of rubber.

6. The cover plate mounting structure for an excavator according to claim 1 or 2, characterized in that The excavator cover plate mounting structure comprises a hydraulic oil tank mounting support, a side frame mounting support and a cover plate arranged between the two mounting supports, and a first bolt; 7. An excavator characterized by comprising: One side of the cover plate is provided with a first through hole, and the hydraulic oil tank mounting support is provided with an oil tank support through hole matched with the first through hole; A belt following bushing is arranged in the first through hole, a flexible gasket is further arranged between the belt following bushing and the cover plate, and the first bolt passes through the belt following bushing and the oil tank support through hole to achieve the fastening flexible connection of the one side of the cover plate and the hydraulic oil tank mounting support. The excavator cover plate mounting structure further comprises a second bolt; the other side of the cover plate is provided with a U-shaped hole or a waist-shaped hole, and the side frame mounting support is provided with a side frame support through hole matched with the U-shaped hole or the waist-shaped hole; The second bolt passes through the U-shaped hole or the waist-shaped hole and the side frame support through hole to achieve the fastening connection of the other side of the cover plate and the side frame support. The diameter of the first through hole is greater than the diameter of the oil tank support through hole. The belt following bushing comprises a bushing body and a rim arranged at one end of the bushing body; The other end of the bushing body abuts against the upper surface of the hydraulic oil tank mounting support through the first through hole; and the first bolt is pressed on the upper surface of the rim. The flexible gasket is arranged between the lower surface of the rim and the upper surface of the hydraulic oil tank mounting support. The flexible gasket is made of rubber. The excavator cover plate mounting structure comprises a hydraulic oil tank mounting support, a side frame mounting support and a cover plate arranged between the two mounting supports, and a first bolt; One side of the cover plate is provided with a first through hole, and the hydraulic oil tank mounting support is provided with an oil tank support through hole matched with the first through hole; A belt following bushing is arranged in the first through hole, a flexible gasket is further arranged between the belt following bushing and the cover plate, and the first bolt passes through the belt following bushing and the oil tank support through hole to achieve the fastening flexible connection of the one side of the cover plate and the hydraulic oil tank mounting support.

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