CN211113811U - Cover plate fixing structure and hydraulic excavator - Google Patents
Cover plate fixing structure and hydraulic excavator Download PDFInfo
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- CN211113811U CN211113811U CN201921702946.7U CN201921702946U CN211113811U CN 211113811 U CN211113811 U CN 211113811U CN 201921702946 U CN201921702946 U CN 201921702946U CN 211113811 U CN211113811 U CN 211113811U
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Abstract
The utility model provides an apron fixed knot constructs and hydraulic shovel, belong to hydraulic shovel technical field, apron fixed knot constructs including apron and backup pad, the one end and the backup pad of apron are through first bolt fixed connection, the other end and the backup pad of apron pass through second bolt fixed connection, the apron includes the roof and sets up the mounting panel in a roof side, the mounting panel is located between roof and backup pad, be equipped with the boss with second bolted connection department in the backup pad, a pot head of mounting panel is established on the boss, the cover is equipped with first packing ring on the second bolt, the second bolt passes the roof, first packing ring and boss, a relative position for fixed apron and backup pad, and gapped between first packing ring and the mounting panel. The cover plate is fixed in the horizontal direction through the first bolt, and can freely move in the horizontal direction through the second bolt, so that the first bolt and the second bolt are prevented from being loosened by transverse load.
Description
Technical Field
The utility model relates to a hydraulic shovel technical field particularly, relates to an apron fixed knot constructs and hydraulic shovel.
Background
In the current engineering machinery, the hydraulic excavator cover mainly comprises a left side door, a right side door, a top cover plate and a bottom cover plate. The cover plate is an important part of the covering piece, and can be used as a platform for maintenance of customers and can also provide protection for important parts of the excavator.
However, most of the fixing structures of the cover plates are connected by common bolts, and when the vibration frequency difference of two parts connected by the cover plates is large, the bolts for fixing the cover plates are easily subjected to transverse loads, so that the bolts for fixing the cover plates are loosened and broken. In the hydraulic excavator, the middle upper cover plate is most protruded, one end of the middle upper cover plate is connected with a hydraulic oil tank or a fuel tank, the other end of the middle upper cover plate is connected with a covering piece frame, the vibration frequencies of the middle upper cover plate and the covering piece frame are different, and the situation that a fixing bolt of the middle upper cover plate is loosened frequently occurs.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an apron fixed knot constructs and hydraulic shovel, can reduce the phenomenon that the apron bolt pine takes off, make the apron installation firm.
The embodiment of the utility model is realized like this:
an aspect of the embodiment provides an apron fixed knot constructs, it includes apron and backup pad, the one end and the backup pad of apron are through first bolt fixed connection, the other end and the backup pad of apron pass through second bolt fixed connection, the apron includes the roof and sets up the mounting panel in a roof side, the mounting panel is located between roof and backup pad, be equipped with the boss with second bolted connection department in the backup pad, a pot head of mounting panel is established on the boss, the cover is equipped with first packing ring on the second bolt, the second bolt passes the roof, first packing ring and boss, a relative position for fixed cover board and backup pad, and gapped between first packing ring and the mounting panel.
Optionally, the outer periphery of the boss is sleeved with a second washer and a third washer, one end of the support plate is clamped between the second washer and the third washer, the head of the second bolt is pressed on the top of the boss through the first washer, a screw of the second bolt sequentially penetrates through the top plate, the first washer and the boss and is used for fixing the relative positions of the top plate, the support plate and the support plate, and a gap is reserved between the first washer and the second washer.
Optionally, a mounting hole is formed in the top plate, a round hole is formed in the support plate in a matched mode, the first gasket is arranged in the mounting hole, a threaded hole is formed in the boss, and the second bolt sequentially penetrates through the mounting hole, the first gasket and the threaded hole to press the top of the first gasket and the top of the boss.
Optionally, the outer diameter of the boss is smaller than the circular hole diameter of the support plate.
Optionally, a dust cap is arranged on the mounting hole.
Optionally, a through hole is formed in the supporting plate and matched with the joint of the first bolt, a fourth washer is sleeved on the first bolt, and the first bolt penetrates through the through hole and is fixedly connected with the cover plate and the supporting plate through a nut.
Optionally, the bracket plate includes a first support plate and a second support plate arranged parallel to each other, and two connecting plates connected between the first support plate and the second support plate.
Optionally, a side of the top plate away from the support plate is provided with a plurality of anti-slip bumps.
Optionally, the first gasket is a metal gasket, and the second gasket and the third gasket are nylon gaskets.
The utility model discloses on the other hand provides a hydraulic shovel, and it includes hydraulic shovel host computer and foretell apron fixed knot construct, apron fixed knot constructs the setting and is in on the hydraulic shovel host computer.
The utility model discloses beneficial effect includes:
the embodiment of the utility model provides a apron fixed knot constructs and hydraulic excavator, apron one end is fixed at the horizontal direction and backup pad through first bolt, the apron other end is fixed through second bolt and backup pad, the boss is equipped with the second bolted connection department in the backup pad, be equipped with first packing ring on the second bolt, the second bolt passes the roof, first packing ring and boss, be used for the relative position of fixed apron and backup pad, first packing ring is used for restricting the motion of mounting panel in the vertical direction, there is the clearance between first packing ring and the mounting panel, make the mounting panel not receive the packing force of first packing ring and second bolt, the mounting panel of this end of apron can freely move in the horizontal direction, carry out the vertical direction spacing to this end of apron through the second bolt, but the apron does not receive the load of second bolt in the vertical direction of this end, the degree of freedom of the apron in the horizontal direction of this end is unrestricted, the apron adopts conventional fixed mode fixed at the horizontal direction through the tip of first bolt fastening, and when the apron both ends were at the inconsistent time of horizontal direction vibration frequency, the apron was fixed at the horizontal direction through first bolt, can freely remove through second bolt horizontal direction, avoided apron first bolt and second bolt to receive transverse load and the condition that the pine takes off appears.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a first view angle of a cover plate fixing structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second view angle of the cover plate fixing structure according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a bracket of a cover plate fixing structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a supporting plate of a cover plate fixing structure according to an embodiment of the present invention;
fig. 5 is a schematic view of a cover plate mounting structure of a cover plate fixing structure according to an embodiment of the present invention;
FIG. 6 is a schematic view of the cross-sectional structure A-A of FIG. 5;
fig. 7 is a schematic view of the cross-sectional structure B-B of fig. 5.
Icon: 1-a first plate; 2-a second support plate; 3-connecting the plates; 4-a reinforcing plate; 5-a circular hole; 6-kidney-shaped holes; 7-cover plate; 8-a top plate; 9-anti-slip bumps; 10-mounting holes; 11-a flanging plate; 12-a second support plate; 13-a first support plate; 14-a boss; 15-dust cap; 16A-a second gasket; 16B-a third gasket; 17A-a first gasket; 17B-a fourth gasket; 18A-a second bolt; 18B-a first bolt; 19-nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Example one
Referring to fig. 1 and 2, the present embodiment provides a cover plate fixing structure, which includes a cover plate 7 and a support plate, one end of the cover plate 7 is fixedly connected to the support plate through a first bolt 18B, the other end of the cover plate 7 is fixedly connected to the support plate through a second bolt 18A, the cover plate 7 includes a top plate 8 and a support plate disposed on one side of the top plate 8, the support plate is located between the top plate 8 and the support plate, a boss 14 is disposed at a joint of the support plate and the second bolt 18A, a first washer 17A is sleeved on the second bolt 18A, the second bolt 18A penetrates through the top plate 8, the first washer 17A and the boss 14, and is used for fixing a relative position between the cover plate 7 and the support plate, and a gap is formed between the first washer 17A and the.
As shown in fig. 2, the cover plate 7 includes a top plate 8 and a support plate disposed on a side surface of the top plate 8, the top plate 8 and the support plate are fixedly connected to form the cover plate 7, and a side surface of the top plate 8 on which the support plate is disposed is a bottom surface of the top plate 8.
Illustratively, as shown in fig. 3, the supporting plate includes a first supporting plate 1 and a second supporting plate 2, and two connecting plates 3 connected between the first supporting plate 1 and the second supporting plate 2, the first supporting plate 1 and the second supporting plate 2 are arranged in parallel, a reinforcing plate 4 is further arranged between the two connecting plates 3, the supporting plate is mainly used for reinforcing the rigidity of the top plate 8 and plays a role of a reinforcing rib, and the cover plate 7 formed in this way is more stable and is not easy to deform.
The embodiment provides a cover plate fixing structure, one end of a cover plate 7 is fixed with a support plate in the horizontal direction through a first bolt 18B, the other end of the cover plate 7 is fixed with the support plate through a second bolt 18A, a boss 14 is arranged at the joint of the support plate and the second bolt 18A, a first washer 17A is arranged on the second bolt 18A, the second bolt 18A penetrates through a top plate 8, the first washer 17A and the boss 14 and is used for fixing the relative position of the cover plate 7 and the support plate, the first washer 17A is used for limiting the movement of the support plate in the vertical direction, a gap is arranged between the first washer 17A and the support plate, so that the support plate is not pressed by the first washer 17A and the second bolt 18A, the support plate at the end of the cover plate 7 can freely move in the horizontal direction, the end of the cover plate 7 is limited in the vertical direction through the second bolt 18A, but the cover plate 7 is not loaded by the second bolt 18A in the vertical direction, the degree of freedom of the cover plate 7 in the horizontal direction at the end is not limited, the end of the cover plate 7 fixed through the first bolt 18B is fixed in the horizontal direction in a conventional fixing mode, when the vibration frequencies of the two ends of the cover plate 7 in the horizontal direction are inconsistent, the cover plate 7 is fixed in the horizontal direction through the first bolt 18B and can freely move in the horizontal direction through the second bolt 18A, and the situation that the first bolt 18B and the second bolt 18A of the cover plate 7 are loosened due to transverse loads is avoided.
As shown in fig. 4, one end of the cover plate 7 is fixedly connected with the support plate through a first bolt 18B, the other end of the cover plate 7 is fixedly connected with the support plate through a second bolt 18A, the support plate comprises a first support plate 13 and a second support plate 12, as shown in fig. 4 and 5, the support plate is the second support plate 12 at the joint of the second bolt 18A, the support plate is the first support plate 13 at the joint of the first bolt 18B, the cover plate 7 is rectangular, and the rectangular cover plate has four corners, wherein the two corners at one end of the cover plate 7 are respectively fixed with the two first support plates 13 at the corresponding positions through the first bolts 18B, and the two corners at the other end of the cover plate 7 are respectively fixed with the two second support plates 12 at the corresponding positions through the second bolts 18A.
Specifically, the outer periphery of the boss 14 is sleeved with a second washer 16A and a third washer 16B, one end of the support plate is clamped between the second washer 16A and the third washer 16B, the head of the second bolt 18A is pressed on the top of the boss 14 through the first washer 17A, the screw of the second bolt 18A sequentially penetrates through the top plate 8, the first washer 17A and the boss 14 to fix the relative positions of the top plate 8, the support plate and the support plate, and a gap is formed between the first washer 17A and the second washer 16A.
As shown in fig. 3, during installation, the support plate is installed in a direction between the top plate 8 and the support plate, the first support plate 1 of the support plate is provided with two round holes 5, the second support plate 2 is provided with two waist-shaped holes 6, as shown in fig. 4 and 6, the second support plate 12 is provided with a boss 14 for connecting with a second bolt 18A, a threaded hole is arranged in the boss 14, a third gasket 16B is sleeved on the boss 14, one end of the cover plate 7 is sleeved on the boss 14 through the round hole 5 of the first support plate 1, then the boss 14 is sleeved with a second gasket 16A, the top plate 8 is provided with an installation hole 10, the second bolt 18A is sleeved with a first gasket 17A and then sequentially passes through the installation hole 10 and the threaded hole of the boss 14, so that the second bolt 18A is screwed into the threaded hole of the boss 14 for fixation, the first support plate 1 end of the cover plate 7 is vertically limited by the second bolt 18A, at this time, the heads of the first washer 17A and the second bolt 18A are sunk into the mounting hole 10, the head of the second bolt 18A is pressed on the top of the boss 14 through the first washer 17A, and the second washer 16A and the third washer 16B are sleeved on the periphery of the boss 14.
A screw rod of the second bolt 18A sequentially penetrates through the mounting hole 10 of the top plate 8, the first gasket 17A and a threaded hole of the boss 14, and meanwhile, the second gasket 16A, the first support plate 1 of the support plate and the third gasket 16B are sleeved on the periphery of the boss 14 and used for fixing the relative positions of the top plate 8, the support plate and the support plate, so that the second bolt 18A tightly presses the tops of the first gasket 17A and the boss 14; the end of the first support plate 1 of the support plate is clamped between the second gasket 16A and the third gasket 16B, the holes of the second gasket 16A and the third gasket 16B and the round hole 5 of the first support plate 1 jointly penetrate through the boss 14, the lower surface of the first gasket 17A is in direct contact with the upper surface of the boss 14 to bear force, but a small gap is left between the lower surface of the first gasket 17A and the upper surface of the second gasket 16A to ensure that when the lower surface of the first gasket 17A and the upper surface of the second gasket 16A are in contact with each other
After the first washer 17A is pressed by the second bolt 18A, no force is applied between the first washer 17A and the second washer 16A.
The second gasket 16A and the third gasket 16B isolate the support plate from the first gasket 17A, preventing vibrations from being directly transmitted to the support plate and the first gasket 17A when the cover plate 7 vibrates, and improving the stability of the cover plate 7 at this end.
The aperture of the round hole 5 of the first support plate 1 of the support plate is larger than the outer diameter of the boss 14, a gap is reserved between the inner diameter of the round hole 5 and the outer diameter of the boss 14, and the first support plate 1 is not restrained between the second gasket 16A and the third gasket 16B in the horizontal direction, so that the first support plate 1 can freely move in the horizontal direction between the second gasket 16A and the third gasket 16B.
The second gasket 16A and the third gasket 16B contained in the cover plate fixing structure are both nylon gaskets and are respectively placed on the upper surface and the lower surface of the first support plate 1; the first gasket 17A is a metal gasket, and the nylon gasket prevents metal contact abrasion between the first support plate 1 and the metal first gasket 17A and the second support plate 12; the self-lubricating property of the nylon washer can reduce the friction force of the relative movement between the cover plate 7 and the second washer 16A and the third washer 16B when the first support plate 1 moves relatively between the second washer 16A and the third washer 16B.
Be equipped with a plurality of anti-skidding bumps 9 on the side of keeping away from the mounting panel on roof 8, as shown in fig. 1, the side of keeping away from the mounting panel on roof 8 is the top surface of roof 8, is equipped with a plurality of anti-skidding bumps 9 on the top surface of roof 8, and when roof 8 upper portion is moist or there is liquid to exist, anti-skidding bump 9 increase frictional force plays anti-skidding effect.
The two sides of the top plate 8 are provided with the flanging plates 11, and when the cover plate 7 is used as a maintenance platform, the flanging plates 11 play a role in enhancing the rigidity of the top plate 8, and certainly, the rigidity of the cover plate 7 is also enhanced.
The installation hole 10 is provided with a dust cap 15 for preventing dust from entering the cover plate fixing structure.
As shown in fig. 7, the other end fixing structure of the cover plate 7 is a common bolt connection structure, the support plate connected thereto is a first support plate 13, a through hole is formed in the first support plate 13 and used for matching with a first bolt 18B, the other end of the cover plate 7 is fixed to the first support plate 13 through the second support plate 2, specifically, a waist-shaped hole 6 is formed in the second support plate 2, a fourth gasket 17B is sleeved on the first bolt 18B and then sequentially passes through the mounting hole 10 of the top plate 8 on the side of the second support plate 2, the waist-shaped hole 6 of the second support plate 2 and the through hole of the first support plate 13 and is fixed by a nut 19, so as to fixedly connect the one end of the cover plate 7 to the first support plate 13.
To sum up, in the cover plate fixing structure provided by the embodiment of the present invention, one end of the cover plate 7 is fixed to the support plate by the first bolt 18B in fig. 7 in the horizontal direction, the other end of the cover plate 7 is fixed to the support plate by the second bolt 18A in fig. 6, the second bolt 18A and the first washer 17A limit the position of the first support plate 1 (one end of the support plate), the second washer 16A and the third washer 16B in the vertical direction, but the second washer 16A, the bracket plate and the third washer 16B are not pressed by the first washer 17A, the bracket plate at the end of the cover plate 7 can freely move between the second washer 16A and the third washer 16B in the horizontal direction, the first bolt 18B and the second bolt 18A of the cover plate 7 are prevented from being loosened by lateral load, while avoiding wear of the bracket plate and the direct metal-to-metal contact between the first gasket 17A and the support plate.
In the cover plate fixing structure provided by the embodiment of the utility model, the cover plate fixing structure only limits the vertical direction of the cover plate 7, but the horizontal direction of the cover plate 7 is not loaded by bolts; the vertical force is generated among the second bolt 18A, the first washer 17A and the boss 14, the degree of freedom of the cover plate 7 in the horizontal direction is not limited, when the second support plate 12 and the first support plate 13 fixed at the two ends of the cover plate 7 are inconsistent in the vibration frequency in the horizontal direction, as shown in fig. 5, the cover plate 7 is fixed on the right side in the horizontal direction, the cover plate 7 can freely move in the horizontal direction on the left side, and the first bolt 18B and the second bolt 18A on the cover plate 7 are prevented from being loosened due to the transverse load.
Example two
The embodiment provides a hydraulic excavator, including hydraulic excavator host computer and foretell apron fixed knot construct, apron fixed knot construct sets up on hydraulic excavator host computer.
In the hydraulic excavator, one end of the middle upper cover plate is connected with a hydraulic oil tank or a fuel tank, and the other end of the middle upper cover plate is connected with the covering piece frame. For example, when the cover fixing structure is used for the upper middle cover, one end of the upper middle cover may be connected to the hydraulic tank or the fuel tank by the above-mentioned connection of the second bolt 18A, and the other end may be connected to the cover frame by the conventional connection of the first bolt 18B; alternatively, one end of the upper cover plate may be connected to the hydraulic tank or the fuel tank by the above-described connection of the first bolt 18B, and the other end may be connected to the cover frame by the conventional connection of the second bolt 18A. Therefore, the problem that the bolt is loosened due to different vibration frequencies of the two ends in the prior art can be solved.
The embodiment of the utility model provides a hydraulic shovel, job stabilization protects.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an apron fixed knot constructs, its characterized in that, includes apron and backup pad, the one end of apron with the backup pad passes through first bolt fixed connection, the other end of apron with the backup pad passes through second bolt fixed connection, the apron includes the roof and sets up the mounting panel of roof side, the mounting panel is located the roof with between the backup pad, in the backup pad with second bolted connection department is equipped with the boss, a pot head of mounting panel is established on the boss, the cover is equipped with first packing ring on the second bolt, the second bolt passes the roof first packing ring with the boss is used for fixing the apron with the relative position of backup pad, just first packing ring with it is gapped between the mounting panel.
2. The cover plate fixing structure according to claim 1, wherein a second washer and a third washer are sleeved on the outer periphery of the boss, one end of the support plate is clamped between the second washer and the third washer, the head of the second bolt is pressed on the top of the boss through the first washer, a screw of the second bolt sequentially penetrates through the top plate, the first washer and the boss to fix the relative positions of the top plate, the support plate and the support plate, and a gap is formed between the first washer and the second washer.
3. The cover plate fixing structure according to claim 1, wherein a mounting hole is formed in the top plate, a circular hole is formed in the support plate in a matching manner, the first gasket is arranged in the mounting hole, a threaded hole is formed in the boss, and the second bolt sequentially penetrates through the mounting hole, the first gasket and the threaded hole to press the top of the first gasket and the top of the boss.
4. The cover plate fixing structure according to claim 2, wherein an outer diameter of the boss is smaller than a hole diameter of the circular hole of the holder plate.
5. The cover plate fixing structure according to claim 3, wherein a dust cap is provided on the mounting hole.
6. The cover plate fixing structure according to claim 1, wherein a through hole is formed in the support plate at a position where the support plate is connected to the first bolt in a matching manner, a fourth washer is sleeved on the first bolt, and the first bolt penetrates through the through hole and fixedly connects the cover plate and the support plate through a nut.
7. The cover fixing structure according to claim 1, wherein the bracket plate includes a first support plate and a second support plate disposed parallel to each other, and two connecting plates connected between the first support plate and the second support plate.
8. The cover plate fixing structure according to claim 1, wherein a plurality of non-slip protrusions are provided on a side of the top plate away from the support plate.
9. The cover plate securing structure according to claim 2, wherein the first washer is a metal washer, and the second washer and the third washer are nylon washers.
10. A hydraulic excavator comprising a main body of the hydraulic excavator and the cover plate fixing structure as claimed in any one of claims 1 to 9, wherein the cover plate fixing structure is provided on the main body of the hydraulic excavator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920432075 | 2019-04-01 | ||
| CN2019204320755 | 2019-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211113811U true CN211113811U (en) | 2020-07-28 |
Family
ID=71698220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921702946.7U Active CN211113811U (en) | 2019-04-01 | 2019-09-30 | Cover plate fixing structure and hydraulic excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211113811U (en) |
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2019
- 2019-09-30 CN CN201921702946.7U patent/CN211113811U/en active Active
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