CN103968000A - Engineering machinery and balance weight connecting device thereof - Google Patents
Engineering machinery and balance weight connecting device thereof Download PDFInfo
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- CN103968000A CN103968000A CN201310030075.XA CN201310030075A CN103968000A CN 103968000 A CN103968000 A CN 103968000A CN 201310030075 A CN201310030075 A CN 201310030075A CN 103968000 A CN103968000 A CN 103968000A
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- counterweight
- sleeve
- bolt
- connecting base
- engineering machinery
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Abstract
The invention provides engineering machinery and a balance weight connecting device of the engineering machinery. The balance weight connecting device comprises a bolt, a sleev, and a connecting base, wherein the sleeve comprises an inner wall with a thread and an outer wall with bulges, is used for being sleeved with the bolt, and is in threaded connection with the bolt, and the connecting base comprises a clamping slot which is in clamped connection with the bulges of the sleeve and is connected to a balance weight. The engineering machinery comprises the balance weight connecting device. The balance weight connecting device is in clamped connection with the connecting base on the balance weight through the sleeve in threaded connection with the bolt, so that when the balance weight is disassembled, the sleeve is pulled out from the connecting base without damaging the connecting base, even if the thread damage is caused because of the repeated disassemble and assembly of the balance weight, only the bolt and the sleeve are needed to be replaced, but not the entire balance weight is changed, so that the cost is greatly saved.
Description
Technical field
The present invention relates to engineering machinery field, specifically the connection set of a kind of engineering machinery and counterweight thereof.
Background technique
Engineering machinery has been widely used in the engineering fields such as building, road, mine, harbour, and engineering machinery comprises excavator, loader, fork truck etc.
Fig. 1 is a kind of structural representation of excavator, and this excavator comprises lower body, top body and working portion, and working portion mainly comprises scraper bowl (bucket) 111, dipper (arm) 112 and swing arm (boom) 113.Lower body 120 is mainly running gear, and top body is arranged in lower body, and top body mainly comprises: body frame 131, operator cabin 132, counterweight 133, cover body 134, arched door 135 and fuel tank, storage battery etc.
Counterweight is generally all installed in various engineering machinery, and counterweight is fixedly connected with body frame, and Fig. 2 is the structural representation that existing a kind of counterweight 133 is connected with body frame, has built blending material in counterweight, and screw shell 1331 is built together.Body frame is fixedly connected with this screw shell 1331 by screw rod 1332, thereby counterweight is fixing together with body frame.Screw shell between counterweight and the body frame of this structure is connected and fixed mode, although make simply, cost is lower, because of field bolt fault, and the reason such as super sized type machine transport, need repeatedly dismantle counterweight, install.Because the frequent dismounting of screw thread, and be there is to high requirement in the moment of dismantling rear refitting.So after repeatedly dismantling, the bush whorl of counterweight self very easily sustains damage.Once screw thread sustains damage, whole counterweight needs to be changed, and so phenomenon occurs, and cost will very high, and the counterweight of damage also cannot reuse, and can only scrap processing, wastes huge.
Summary of the invention
The technical problem to be solved in the present invention is, between the counterweight of existing engineering machinery and body frame, be connected and fixed mode by screw shell, because of field bolt fault, and the reason such as super sized type machine transport, need repeatedly dismantle counterweight, install, so after repeatedly dismantling, the bush whorl of counterweight self very easily sustains damage.
In order to solve the problems of the technologies described above, the invention provides a kind of counterweight connection set, comprising:
Bolt;
Sleeve, comprises the threaded inwall of tool and have protruding outer wall, for being sleeved on described bolt, and and described bolt between be threaded;
Connecting base, comprise one for the draw-in groove of the protruding phase clamping of described sleeve, for being connected to counterweight.
In above-mentioned connection set, the end of described draw-in groove has a block, in when projection described in clamping to prevent that described projection from coming off.
In above-mentioned connection set, the outer wall of described sleeve has at least two projections, has the draw-in groove corresponding with described protruding number on described connecting base.
In above-mentioned connection set, described draw-in groove is spiral chute.
The present invention also provides a kind of engineering machinery, comprises
Counterweight;
Body frame;
Connection set, be used for connecting counterweight and body frame, comprise bolt, sleeve and connecting base, described sleeve comprises the threaded inwall of tool and has protruding outer wall, described sleeve set is on described bolt, and be threaded with the first end of described bolt, the second end of described bolt is fixedly connected with body frame; Described connecting base is connected in counterweight, comprise one for the draw-in groove of the protruding phase clamping of described sleeve.
In above-mentioned engineering machinery, the end of described draw-in groove has a block, in when projection described in clamping to prevent that described projection from coming off.
In above-mentioned engineering machinery, described counterweight comprises that one has the holding space of hole, and described connecting base is arranged in holding space, and described sleeve is connected on described connecting base by described hole.
In above-mentioned engineering machinery, described connecting base welds, is bonded in a side of described hole.
In above-mentioned engineering machinery, the periphery of described hole has the groove matching with described projection.
In above-mentioned engineering machinery, described draw-in groove is spiral chute.
The beneficial effect of technique scheme of the present invention is as follows: counterweight connection set of the present invention is by the connecting base phase clamping in the sleeve and the counterweight that are connected with bolt thread, in the time that needs are dismantled counterweight, sleeve can be extracted from connecting base, do not damage connecting base, even if counterweight is repeatedly dismantled, is assembled and caused screw thread damage, only need to change bolt and sleeve, without changing whole counterweight, cost just can be saved greatly.
Brief description of the drawings
Fig. 1 is the structural representation of existing a kind of excavator;
Fig. 2 is the counterweight of Fig. 1 and the linkage structure schematic diagram of body frame;
Fig. 3 is the counterweight of an embodiment of the present invention and the linkage structure schematic diagram of body frame;
Fig. 4 is the structural representation of the counterweight connection set of an embodiment of the present invention;
Fig. 5 is the structural representation of the sleeve of an embodiment of the present invention;
Fig. 6 is the structural representation of the connecting base of an embodiment of the present invention;
Fig. 7 is the counterweight partial structurtes schematic diagram of an embodiment of the present invention.
Embodiment
For making the technical problem to be solved in the present invention, technological scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 3, for the counterweight of an embodiment of the present invention and the linkage structure schematic diagram of body frame, between this embodiment's body frame 131 and counterweight 133, be fixed by counterweight connection set 2, body frame 131 comprises the first arm and the second arm, on two arms, is connected respectively by a counterweight connection set 2 with counterweight 133.
As Figure 4-Figure 6, be the structural representation of the counterweight connection set of an embodiment of the present invention, this counterweight connection set comprises:
Bolt 22, its one end is connected with body frame;
Sleeve 23, comprises the threaded inwall of tool 231 and has the outer wall 232 of projection 233, for being sleeved on the second end of described bolt, and and described bolt between be threaded; This projection is arranged on the outer wall of sleeve.
Connecting base 21, comprise one for the draw-in groove 212 of the protruding phase clamping of described sleeve, for being connected to counterweight.The modes such as this connecting base 21 and counterweight welding, bonding link together, and are arranged in counterweight together with building thing.
Counterweight connection set of the present invention is by the connecting base phase clamping in the sleeve and the counterweight that are connected with bolt thread, in the time that needs are dismantled counterweight, sleeve can be extracted from connecting base, do not damage connecting base, even if counterweight is repeatedly dismantled, is assembled and caused screw thread damage, only need to change bolt and sleeve, without changing whole counterweight, cost just can be saved greatly.
As shown in Figure 5, be the structural representation of the sleeve of an embodiment of the present invention, this embodiment's sleeve 23 comprises inwall 231 and outer wall 232, outer wall and inwall are all cylindrical, form this sleeve between inside and outside wall.This sleeve has internal thread, on this inwall 231, is provided with screw thread.On this outer wall 232, there is the relative position that 233, two projections of two projections are symmetrically distributed in outer wall.The inwall of this sleeve is threaded with bolt 22, and is sleeved on the second end of described bolt.
As shown in Figure 6, be the structural representation of the connecting base of an embodiment of the present invention, this connecting base 21 comprises draw-in groove seat 211 and is arranged on the draw-in groove 212 on draw-in groove seat 211, this draw-in groove matches with the projection on sleeve.This draw-in groove 212 can be the various applicable structures such as spiral chute.Between sleeve of the present invention and connecting base, be clamping, in the time of dismounting counterweight, sleeve can be extracted from draw-in groove, thereby can not be damaged to the connecting base in counterweight, thereby avoid replacing connecting base.In order to prevent projection coming off when the clamping, on draw-in groove, be provided with block 213, prevent that by this block projection from coming off from draw-in groove.
As shown in Figure 7, for the counterweight partial structurtes schematic diagram of an embodiment of the present invention, this connecting base 21 is welded on the base plate 1333 in counterweight, on this base plate, there are two arch grooves, this arch groove matches with the first arm and second arm of body frame, the first arm and the second arm insert respectively in one of them arch groove, then utilize counterweight connection set that the first arm of body frame is connected with counterweight respectively with the second arm.Stretch into counterweight for the ease of sleeve, be provided with hole 1334 on this base plate, the sidewall of this hole is provided with the groove 1335 matching with the above projection, stretches in counterweight through hole thereby be convenient to sleeve.
The present invention also provides a kind of engineering machinery, and this project machinery can be any machinery with counterweight, for example excavator, loader, fork truck etc.This project machinery comprises counterweight, body frame and connection set, this connection set comprises bolt, sleeve and connecting base, described sleeve comprises the threaded inwall of tool and has protruding outer wall, described sleeve set is on described bolt, and be threaded with the first end of described bolt, the second end of described bolt is fixedly connected with body frame; Described connecting base is connected in counterweight, comprise one for the draw-in groove of the protruding phase clamping of described sleeve.The concrete structure of this connection set is referring to above describing.The counterweight of engineering machinery of the present invention is by the connecting base phase clamping in the sleeve and the counterweight that are connected with bolt thread, in the time that needs are dismantled counterweight, sleeve can be extracted from connecting base, do not damage connecting base, even if counterweight is repeatedly dismantled, is assembled and caused screw thread damage, only need to change bolt and sleeve, without changing whole counterweight, cost just can be saved greatly.
The assembling process of counterweight connection set of the present invention is as follows:
1. bolt is fixedly connected with body frame, sleeve set on bolt, and and bolt between be threaded;
2. rotational sleeve, makes sleeve pass counterweight base plate and stretches in counterweight, makes projection aim at the draw-in groove mouth of connecting base;
3. rotational sleeve again, is connected to the projection on sleeve the draw-in groove of the connecting base that is arranged in counterweight, thereby has realized being fixedly connected with between counterweight and body frame.
The unloading process of counterweight connection set of the present invention is as follows: rotational sleeve, and make the projection on sleeve depart from draw-in groove, be rotated further sleeve, make sleeve depart from counterweight base plate, reach convenient demounting bolt.In the time that the screw thread on bolt goes wrong, can realize by changing bolt and sleeve.
Application technique scheme, counterweight of the present invention with the connection set of body frame by the connecting base phase clamping in the sleeve and the counterweight that are connected with bolt thread, in the time that needs are dismantled counterweight, sleeve can be extracted from connecting base, do not damage connecting base, even if counterweight is repeatedly dismantled, assembled and caused screw thread damage, only need to change bolt and sleeve, without changing whole counterweight, cost just can be saved greatly.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a counterweight connection set, is characterized in that, comprising:
Bolt;
Sleeve, comprises the threaded inwall of tool and have protruding outer wall, for being sleeved on described bolt, and and described bolt between be threaded;
Connecting base, comprise one for the draw-in groove of the protruding phase clamping of described sleeve, for being connected to counterweight.
2. counterweight connection set according to claim 1, is characterized in that, the end of described draw-in groove has a block, in when projection described in clamping to prevent that described projection from coming off.
3. counterweight connection set according to claim 1, is characterized in that, the outer wall of described sleeve has at least two projections, has the draw-in groove corresponding with described protruding number on described connecting base.
4. counterweight connection set according to claim 3, is characterized in that, described draw-in groove is spiral chute.
5. an engineering machinery, is characterized in that, comprises
Counterweight;
Body frame;
Connection set, be used for connecting counterweight and body frame, comprise bolt, sleeve and connecting base, described sleeve comprises the threaded inwall of tool and has protruding outer wall, described sleeve set is on described bolt, and be threaded with the first end of described bolt, the second end of described bolt is fixedly connected with body frame; Described connecting base is connected in counterweight, comprise one for the draw-in groove of the protruding phase clamping of described sleeve.
6. engineering machinery according to claim 5, is characterized in that, the end of described draw-in groove has a block, in when projection described in clamping to prevent that described projection from coming off.
7. according to the engineering machinery described in claim 5 or 6, it is characterized in that, described counterweight comprises that one has the holding space of hole, and described connecting base is arranged in holding space, and described sleeve is connected on described connecting base by described hole.
8. engineering machinery according to claim 7, is characterized in that, described connecting base is welded on a side of described hole.
9. engineering machinery according to claim 8, is characterized in that, the periphery of described hole has the groove matching with described projection.
10. engineering machinery according to claim 9, is characterized in that, described draw-in groove is spiral chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030075.XA CN103968000B (en) | 2013-01-25 | 2013-01-25 | A kind of engineering machinery and the attachment means of counterweight thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030075.XA CN103968000B (en) | 2013-01-25 | 2013-01-25 | A kind of engineering machinery and the attachment means of counterweight thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968000A true CN103968000A (en) | 2014-08-06 |
| CN103968000B CN103968000B (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310030075.XA Expired - Fee Related CN103968000B (en) | 2013-01-25 | 2013-01-25 | A kind of engineering machinery and the attachment means of counterweight thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103968000B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160052A (en) * | 1996-11-28 | 1998-06-16 | Matsushita Electric Works Ltd | Pipe joint and casing connecting structure |
| JP2006097295A (en) * | 2004-09-29 | 2006-04-13 | Hitachi Constr Mach Co Ltd | Counterweight installing device of construction machine |
| JP2006193915A (en) * | 2005-01-11 | 2006-07-27 | Hitachi Constr Mach Co Ltd | Counterweight of construction machine |
| CN201242027Y (en) * | 2008-08-01 | 2009-05-20 | 深圳市艾立克电子有限公司 | Weight assembly mechanism |
| US7980781B2 (en) * | 2009-02-20 | 2011-07-19 | Charles Edward Trice | Self locking mast assembly and method of making |
| CN202073977U (en) * | 2009-12-19 | 2011-12-14 | 斗山产业车辆株式会社 | Counterweight structure of heavy equipment |
-
2013
- 2013-01-25 CN CN201310030075.XA patent/CN103968000B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160052A (en) * | 1996-11-28 | 1998-06-16 | Matsushita Electric Works Ltd | Pipe joint and casing connecting structure |
| JP2006097295A (en) * | 2004-09-29 | 2006-04-13 | Hitachi Constr Mach Co Ltd | Counterweight installing device of construction machine |
| JP2006193915A (en) * | 2005-01-11 | 2006-07-27 | Hitachi Constr Mach Co Ltd | Counterweight of construction machine |
| CN201242027Y (en) * | 2008-08-01 | 2009-05-20 | 深圳市艾立克电子有限公司 | Weight assembly mechanism |
| US7980781B2 (en) * | 2009-02-20 | 2011-07-19 | Charles Edward Trice | Self locking mast assembly and method of making |
| CN202073977U (en) * | 2009-12-19 | 2011-12-14 | 斗山产业车辆株式会社 | Counterweight structure of heavy equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103968000B (en) | 2016-08-31 |
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Granted publication date: 20160831 Termination date: 20190125 |