CN103669455B - Machine top cover support structure and excavator - Google Patents
Machine top cover support structure and excavator Download PDFInfo
- Publication number
- CN103669455B CN103669455B CN201310624684.8A CN201310624684A CN103669455B CN 103669455 B CN103669455 B CN 103669455B CN 201310624684 A CN201310624684 A CN 201310624684A CN 103669455 B CN103669455 B CN 103669455B
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- CN
- China
- Prior art keywords
- rod member
- chute
- top cover
- obvolvent
- overhead guard
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- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to machine overhead guard technical field, disclose a kind of machine top cover support structure and excavator.This machine top cover support structure comprises support body, machine overhead guard and strut, wherein, and the second rod member that strut comprises the first rod member and the first rod member expansion fit and the locking structure be arranged between the first rod member and the second rod member; The free end of one of them in first rod member and the second rod member and support body are rotatably connected, and another free end is connected with the first rotating shaft be arranged at movably on machine overhead guard; Or the first rod member is connected with the second rotating shaft be located at movably on support body with the free end of one of them in the second rod member, and another free end and machine overhead guard are rotatably connected.When adopting machine top cover support structure of the present invention, by adjust strut extension elongation and adjustment strut one end in machine overhead guard or the position on support body, can make machine overhead guard have in a big way and be convenient to regulate opening angle.
Description
Technical field
The present invention relates to machine overhead guard technical field, particularly a kind of machine top cover support structure and excavator.
Background technology
In excavator, in order to avoid severe operating environment affects main frame, generally be equipped with covering at host peripheral, for ease of maintenance and regular maintenance, covering corresponding to main frame top is provided with opening, to being provided with the machine overhead guard matched by opening part, machine overhead guard is connected in the frame of opening side rotationally.
In prior art, the supporting way of machine overhead guard mainly contains three kinds: the first adopts collapsible support rod mechanism, wherein, support body (as pole) in one end of collapsible strut and frame is hinged, the other end and machine overhead guard hinged, opening of machine overhead guard can be realized by the expansion controlling collapsible strut.The second adopts slidingtype support rod mechanism, and wherein, the first end of strut is located in the chute on support body, and the other end is articulated with machine overhead guard, can realize opening of machine overhead guard by the position of first end in chute adjusting strut; The third adopts air spring, and wherein, the two ends of air spring are articulated with support body and machine overhead guard respectively, can realize opening of machine overhead guard by controlling the flexible of air spring.
In above-mentioned three kinds of schemes, the adjustment of machine overhead guard opening angle is limited larger.Specifically, in the first scheme, after collapsible strut launches, machine overhead guard is in corresponding opening angle, is difficult to further adjustment; In first scheme, when support body being arranged shorter chute, the maximum opening angle of machine overhead guard is restricted; In the third scheme, the flexible stroke of air spring is comparatively limited, and the maximum opening angle of machine overhead guard is less, and after air spring stretches out, the opening angle of machine overhead guard is difficult to further adjustment.In addition, in the first scheme, folding and needed for expansion space is larger.
Therefore, how improving for existing machine overhead guard supporting way, more to adapt to use needs, is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this, an object of the present invention is providing a kind of machine top cover support structure, so that the opening angle of conditioner overhead guard, and effectively can improve the maximum opening angle of machine overhead guard.
Specifically, this machine top cover support structure comprises support body, machine overhead guard and strut, wherein: the second rod member that described strut comprises the first rod member and described first rod member expansion fit and the locking structure be arranged between described first rod member and described second rod member; The free end of one of them in described first rod member and described second rod member and described support body are rotatably connected, and another free end is connected with the first rotating shaft be arranged at movably on described machine overhead guard; Or described first rod member is connected with the second rotating shaft be located at movably on described support body with the free end of one of them in described second rod member, another free end and described machine overhead guard are rotatably connected.
Further, described first rod member is half obvolvent shape, is formed with rail structure in the first obvolvent breach; Described second rod member is half obvolvent shape, forms the external slide rail structure with the second obvolvent breach; Described second rod member be sheathed in described first rod member at least partially, be slidably matched with described first rod member, and the obvolvent direction of described second rod member is contrary with the obvolvent direction of described first rod member.
Further, described locking structure comprises bolt, the first chute and locking knob; Described bolt is installed on the first side wall relative with described first obvolvent breach on described first rod member; Described first chute is arranged at the second sidewall relative with described second obvolvent breach on described second rod member; The end of thread of described bolt is successively through described first chute and described first obvolvent breach; Described locking knob is arranged at the end of thread of described bolt, locks active force for being formed by the edge of precession and described first chute.
Further, the two ends of described first chute are provided with locking spacing hole, or described first chute is provided with multiple locking spacing hole; The external diameter of described locking knob is greater than the width of described first chute, is less than the internal diameter of described locking spacing hole.
Further, described the first side wall is provided with via hole; The inner side of described the first side wall is fixed with nut in the position around described via hole; The head of described bolt is positioned at the outside of described the first side wall, and the end of thread of described bolt passes described via hole and forms screw pair with described nut.
Further, between the head of described bolt and the outside of described the first side wall, pad is installed.
Further, described machine overhead guard offers the second chute, described first rotating shaft is placed in described second chute; Or described support body is provided with the 3rd chute, described second rotating shaft is placed in described 3rd chute.
Further, described second chute/described 3rd chute is straight shape groove.
Further, the two ends of described second chute/described 3rd chute are provided with support limit hole, or, described second chute/described 3rd chute is provided with multiple support limit hole; The external diameter in described support limit hole is greater than the width of described second chute/described 3rd chute.
Two of object of the present invention is providing a kind of excavator, makes the maintenance of excavator more convenient.
Specifically, this excavator is provided with the machine top cover support structure described in above-mentioned any one.
When adopting machine top cover support structure of the present invention, when needing to open, locking structure can be unlocked, control strut and extend certain length, locking structure is made to lock again, thus under machine overhead guard is supported on corresponding opening angle, when needs regulating opening angle, the collapsing length of strut is regulated by locking structure, to increase or to reduce the opening angle of machine overhead guard, and by regulating the position of one end on support body or machine overhead guard of strut, to increase or to reduce the opening angle of machine overhead guard further; Simultaneously in conjunction with above-mentioned two kinds of operations, can make machine overhead guard have in a big way and be convenient to regulate opening angle.In addition, compared with existing collapsible support rod mechanism, machine overhead guard of the present invention is taken down the exhibits without the need to upset at opening process, and relates generally to the change of stay length and the position adjustment of run-on point, can reduce like this and take up room.
Excavator of the present invention is provided with above-mentioned machine top cover support structure, due to machine overhead guard have in a big way and be convenient to regulate opening angle, the maintenance of this excavator is more convenient.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The structural representation of strut in a kind of machine top cover support structure that Fig. 1 provides for the embodiment of the present invention, wherein, also show the second rod member and is in and retracts and stretch out state (corresponding to dotted portion);
Fig. 2 is that when in Fig. 1, locking knob is in locking spacing hole, the center, perpendicular to the generalized section in the first chute direction, wherein, also show locking knob and is in lockup state and released state (released state corresponds to dotted portion);
Fig. 3 is the installation design sketch of the machine top cover support structure of the embodiment of the present invention.
The structural representation of the another kind of embodiment of strut in a kind of machine top cover support structure that Fig. 4 provides for the embodiment of the present invention.
Critical element symbol description in figure:
1 support body
2 struts
3 machine overhead guards
4 first rod members
5 second rod members
6 locking knobs
7 nuts
8 pads
9 bolts
31 second chutes
32 support limit holes
41 first hinges
43 first obvolvent breach
51 first chutes
52 locking spacing holes
53 second obvolvent breach
54 second hinges
Detailed description of the invention
To it should be pointed out that in this part to the description of concrete structure and description order it is only explanation to specific embodiment, should not be considered as there is any restriction to protection scope of the present invention.In addition, when not conflicting, the embodiment in this part and the feature in embodiment can combine mutually.
Please refer to Fig. 1 to Fig. 4, below in conjunction with accompanying drawing, the embodiment of the present invention is elaborated.
Shown in composition graphs 3, the machine top cover support structure of this embodiment comprises support body 1, machine overhead guard 3 and strut 2.
Shown in Fig. 1 and 2, strut 2 comprises the first rod member 4, second rod member 5, locking knob 6, nut 7 and bolt 9 further.
Wherein, the first rod member 4, in half obvolvent shape, is formed with rail structure (slide rail within it) in the first obvolvent breach 43; Second rod member 5, in half obvolvent shape, forms the external slide rail structure (slide rail is outside it) with the second obvolvent breach 53; Second rod member 5 be sheathed in the first rod member 4 at least partially, be slidably matched with the first rod member 4, and the obvolvent direction of the second rod member 5 is contrary with the obvolvent direction of the first rod member 4.
The first side wall relative with the first obvolvent breach 43 on the first rod member is provided with via hole, and the external diameter of via hole is less than the width of the second obvolvent breach 53; Nut 8 is fixed on the inner side of the first side wall and arranges around this via hole; The head of bolt 9 is positioned at the outside of the first side wall, and the end of thread of bolt 9 through described via hole and nut 8, and forms screw pair with nut 8.
The width (gap) the second sidewall relative with the second obvolvent breach 53 on the second rod member 5 being provided with the first chute 51, first chute 51 is a bit larger tham or is greater than the external diameter of the screw rod of bolt 9; The end of thread of bolt 9 is successively through the first chute 51 and the first obvolvent breach 43.First end and second end of the first chute 51 are provided with locking spacing hole 52, and the external diameter of locking spacing hole 52 is less than the width of the first obvolvent breach 43; Locking knob 6 is arranged at the end of thread of described bolt 9, forms screw pair with the end of thread of bolt 9, and the external diameter of locking knob 6 is a bit larger tham or is greater than the width of the first chute 51, is slightly smaller than or is less than the internal diameter of locking spacing hole 52.
Machine overhead guard 3 offers the second chute 31, the free end of the first rod member 4 is hinged with support body 1 by the first hinge 41, the free end of the second rod member 5 is connected with the first rotating shaft by the second hinge 54, first rotating shaft is placed in the second chute 31 movably, and namely the first rotating shaft can be moved along the second chute 31.
The operating principle of the machine top cover support structure of above-described embodiment is described below in conjunction with concrete scene:
Shown in composition graphs 3, in use, the side of machine overhead guard 3 is articulated with the primary importance of frame, and support body 1(is as pole) be arranged at the second place of frame.In an initial condition, second rod member 5 is in retracted mode relative to the first rod member 4, in the locking spacing hole 52 of locking knob 6 precession first chute 51 second end, locking knob 6 locks active force with the interior of locking spacing hole 52 along being formed, and locks between the first rod member 4 and the second rod member 5; When needs uncapping machine overhead guard 3, the spin-ended button 6 of rotatable lock, it is made to depart from the locking spacing hole 52 of the first chute 51 second end, the second rod member 5 is made to stretch out relative to the first rod member 4 again, thus make the screw rod of bolt 9 move to the locking spacing hole of its first end along the first chute 51, afterwards again by the locking spacing hole of this first end of locking knob 6 precession, the first rod member 4 and the second rod member 5 are locked, under machine overhead guard 3 is supported on corresponding opening angle by the strut 2 after extending like this; When the opening angle of reconditioner overhead guard 3, also by regulating the position of the first rotating shaft in the second chute 31 at strut one end (i.e. the free end of the second rod member 5) place, to increase or to reduce the opening angle of machine overhead guard 3 further; Simultaneously in conjunction with above-mentioned two kinds of operations, can make machine overhead guard 3 have in a big way and be convenient to regulate opening angle.In addition, compared with existing collapsible support rod mechanism, the machine top cover support structure of above-described embodiment is taken down the exhibits without the need to upset at opening process, and relates generally to the change of stay length and the position adjustment of run-on point, can reduce like this and take up room.
In specific implementation process, the machine top cover support structure of above-described embodiment can also do following at least one optimization: one, can install pad 8 between the head of bolt 9 and the first rod member 4 the first side wall, the fastening effect of bolt 9 can be made so better; Two, shown in composition graphs 4, plural locking spacing hole 52 can be set on the first chute 51, the opening angle of conditioner overhead guard 3 can be convenient to like this, and there is better support effect; Three, shown in composition graphs 3, support limit hole 32 can be all set at the two ends of the second chute 31, or on the second chute 31, plural support limit hole 32 is set, the external diameter in support limit hole 32 is greater than the width of the second chute 31, be convenient to like this realize the location to the first rotating shaft in the first chute 31, thus there is better support effect; Four, the second chute 31 is straight shape groove, and its direction is perpendicular to the rotation direction of machine overhead guard 3, is convenient to the adjustment realizing opening angle with shorter stroke like this.
In above-described embodiment and preferred embodiment thereof, nut 7 is not only for realizing the firm installation of bolt 9, also with carrying out spacing to the precession stroke of locking knob 6, can prevent locking knob 6 precession from excessively causing the damages such as locking spacing hole 52 or the first chute 51 like this; During concrete enforcement, the side of nut 7 can be welded on the inner side of the first rod member 4 the first side wall.Certainly, in other embodiments, the fixed installation mode of bolt 9 has varied, in addition, also can omit the setting of nut 7 as required.
It should be noted that, in above-mentioned various embodiment and preferred embodiment thereof, active force is locked by being formed between the locking spacing hole 52 on the first chute 51 and locking knob 6, the locking effect of this mode is better, but in other embodiments, the mode realizing producing locking active force has varied, such as, can when omitting locking spacing hole 52, by the structure of Proper Match first chute 51 and locking knob 6, when making 6 precession of locking knob and the edge of the first chute 51 is formed locks active force, and this mode also can realize function of the present invention.
It should be noted that, in above-mentioned various embodiment and preferred embodiment thereof, locking structure is formed by bolt 9, first chute 51 and locking knob 6 etc., but in other embodiments, also other forms of locking structure can be adopted, as long as the locking of the first rod member 4 and the second rod member 5 can be realized and unlock.
It should be noted that, in above-mentioned various embodiment and preferred embodiment thereof, the interior rail structure of the first rod member 4 in half obvolvent shape, the external slide rail structure of the second rod member 5 in half obvolvent shape, first rod member 4 and the second rod member 5 are slidably matched, and can ensure the weight and volume reducing strut 2 under the prerequisite supporting firm performance like this; But in other embodiments, also can adopt other form first rod members and the second rod member as required, as long as make the first rod member and the second rod member form stretching structure.
It should be noted that, in above-mentioned various embodiment and preferred embodiment thereof, the free end of one of them in first rod member and the second rod member and support body are rotatably connected (as hinged), and another free end is connected with the first rotating shaft be arranged at movably on described machine overhead guard; But in other embodiments, the first rod member also can be made to be connected with the second rotating shaft be located at movably on support body with the free end of one of them in the second rod member, and another free end and machine overhead guard are rotatably connected (as hinged); The removable mode of the second rotating shaft realizes by the 3rd chute be opened on support body; Further expanding of 3rd chute can with reference to the description of aforementioned second chute.
The embodiment of the present invention additionally provides a kind of excavator, the main frame covering of this excavator is provided with the machine top cover support structure of any one form above-mentioned, because above-mentioned machine top cover support structure has above-mentioned technique effect, therefore, this excavator also should possess corresponding technique effect; In addition, from above-mentioned analysis, this excavator is also convenient to safeguard.The specific implementation process of this excavator appropriate section is similar to the above embodiments, and the specific implementation process of other parts see the associated description of prior art, hereby can not repeat.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a machine top cover support structure, comprises support body (1), machine overhead guard (3) and strut (2), it is characterized in that:
Described strut (2) comprises the first rod member (4), and second rod member (5) of described first rod member (4) expansion fit and the locking structure that is arranged between described first rod member (4) and described second rod member (5);
The free end of one of them in described first rod member (4) and described second rod member (5) and described support body (1) are rotatably connected, and another free end is connected with the first rotating shaft be arranged at movably on described machine overhead guard (3); Or, described first rod member (4) is connected with the second rotating shaft be located at movably on described support body (1) with the free end of one of them in described second rod member (5), and another free end and described machine overhead guard (3) are rotatably connected;
Described first rod member (4), in half obvolvent shape, forms the interior rail structure with the first obvolvent breach (43); Described second rod member (5), in half obvolvent shape, forms the external slide rail structure with the second obvolvent breach (53); Described second rod member (5) be sheathed in described first rod member (4) at least partially, be slidably matched with described first rod member (4), and the obvolvent direction of described second rod member (5) is contrary with the obvolvent direction of described first rod member (4).
2. machine top cover support structure as claimed in claim 1, is characterized in that: described locking structure comprises bolt (9), the first chute (51) and locking knob (6); Described bolt (9) is installed on the upper the first side wall relative with described first obvolvent breach (43) of described first rod member (4); Described first chute (51) is arranged at upper second sidewall relative with described second obvolvent breach (53) of described second rod member (5); The end of thread of described bolt (9) is successively through stating the first chute (51) and described first obvolvent breach (43); Described locking knob (6) is arranged at the end of thread of described bolt (9), locks active force for being formed by the edge of precession and described first chute (51).
3. machine top cover support structure as claimed in claim 2, it is characterized in that: the two ends of described first chute (51) are provided with locking spacing hole (52), or described first chute (51) is provided with multiple locking spacing hole (52); The external diameter of described locking knob (6) is greater than the width of described first chute (51), is less than the internal diameter of described locking spacing hole (52).
4. machine top cover support structure as claimed in claim 2, is characterized in that: described the first side wall is provided with via hole; The inner side of described the first side wall is fixed with nut (7) in the position around described via hole; The head of described bolt (9) is positioned at the outside of described the first side wall, and the end of thread of described bolt (9) passes described via hole and forms screw pair with described nut (7).
5. machine top cover support structure as claimed in claim 4, is characterized in that: be provided with pad (8) between the head of described bolt (9) and the outside of described the first side wall.
6. the machine top cover support structure as described in any one of claim 1 to 5, is characterized in that: described machine overhead guard offers the second chute (31), and described first rotating shaft is placed in described second chute (31); Or described support body (1) is provided with the 3rd chute, described second rotating shaft is placed in described 3rd chute.
7. machine top cover support structure as claimed in claim 6, is characterized in that: described second chute (31)/described 3rd chute is straight shape groove.
8. machine top cover support structure as claimed in claim 6, it is characterized in that: the two ends of described second chute (31)/described 3rd chute are provided with support limit hole (32), or, described second chute (31)/described 3rd chute is provided with multiple support limit hole (32); The external diameter of described support limit hole (32) is greater than the width of described second chute/described 3rd chute.
9. an excavator, is characterized in that: described excavator is provided with the machine top cover support structure described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310624684.8A CN103669455B (en) | 2013-11-28 | 2013-11-28 | Machine top cover support structure and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310624684.8A CN103669455B (en) | 2013-11-28 | 2013-11-28 | Machine top cover support structure and excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103669455A CN103669455A (en) | 2014-03-26 |
| CN103669455B true CN103669455B (en) | 2016-02-10 |
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ID=50308168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310624684.8A Expired - Fee Related CN103669455B (en) | 2013-11-28 | 2013-11-28 | Machine top cover support structure and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103669455B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0155656B1 (en) * | 1995-12-29 | 1998-10-15 | 강병호 | Hood link device for a vehicle |
| CN1912328A (en) * | 2005-08-12 | 2007-02-14 | 比亚迪股份有限公司 | Operation mechanism of engine hood |
| CN101139844A (en) * | 2005-09-05 | 2008-03-12 | 日立建机株式会社 | Working machinery |
| CN201825123U (en) * | 2010-09-30 | 2011-05-11 | 奇瑞汽车股份有限公司 | Supporting rod assembly for engine cover |
| CN202574393U (en) * | 2012-05-28 | 2012-12-05 | 东风汽车公司 | Self-positioning engine hood support rod structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5810805B2 (en) * | 2011-09-30 | 2015-11-11 | コベルコ建機株式会社 | Work machine |
-
2013
- 2013-11-28 CN CN201310624684.8A patent/CN103669455B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0155656B1 (en) * | 1995-12-29 | 1998-10-15 | 강병호 | Hood link device for a vehicle |
| CN1912328A (en) * | 2005-08-12 | 2007-02-14 | 比亚迪股份有限公司 | Operation mechanism of engine hood |
| CN101139844A (en) * | 2005-09-05 | 2008-03-12 | 日立建机株式会社 | Working machinery |
| CN201825123U (en) * | 2010-09-30 | 2011-05-11 | 奇瑞汽车股份有限公司 | Supporting rod assembly for engine cover |
| CN202574393U (en) * | 2012-05-28 | 2012-12-05 | 东风汽车公司 | Self-positioning engine hood support rod structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103669455A (en) | 2014-03-26 |
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