CN201277232Y - Connection pin shaft - Google Patents
Connection pin shaft Download PDFInfo
- Publication number
- CN201277232Y CN201277232Y CNU2008201400726U CN200820140072U CN201277232Y CN 201277232 Y CN201277232 Y CN 201277232Y CN U2008201400726 U CNU2008201400726 U CN U2008201400726U CN 200820140072 U CN200820140072 U CN 200820140072U CN 201277232 Y CN201277232 Y CN 201277232Y
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- Prior art keywords
- bearing pin
- piston rod
- piston
- groove
- draw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a connecting pin shaft for connecting two structural components, which comprises a pin shaft body, a cylinder head, a piston, a piston rod and a fixing catch component, wherein one side of the pin shaft body is provided with a piston cavity for holding the piston, and the cylinder head is sealed with the pin shaft body on the opening end of the piston cavity, and the piston is arranged in the piston cavity of the pin shaft body, one end of the piston rod is arranged in the piston cavity of the pin shaft body to fix with the piston, and the other end thereof is extended out from the middle portion of the cylinder head. The fixing catch component is used to fix the relative position between the expansion end of the piston rod and a structure component, the cylinder head is provided with an oil way communicated with the piston rod, and the piston rod is provided with an oil way communicated with a piston rodless cavity. The pin shaft body in the scheme is simultaneously used as the barrel of a driving hydraulic cylinder, and the required mounting space is reduced as the pin shaft of the structure component and supported and guided with a sliding block, and the optimal design of the whole arrangement is beneficial. Simultaneously, material can be reduced, and the whole cost is reduced.
Description
Technical field
The utility model relates to the mechanical connection member, is specifically related to a kind of connection bearing pin.
Background technique
The bearing pin linkage structure is a kind of force transferring structure the most frequently used in the engineering, such as, for satisfying the needs of split transportation, all adopt bearing pin to be connected between the arm of large-tonnage crawler crane and turntable, mast and the turntable.Connect for the bearing pin between higher, the larger-size structure member of carrying, the physical dimension of its bearing pin is bigger and stressed also bigger, and therefore, needed dismounting space and dismounting power are all bigger.
In order to reduce the labor intensity of disassembling and assembling pin shaft, improve operating efficiency, the dismounting that is generally bearing pin in the prior art is equipped with a special-purpose hydraulic cylinder, and by the axial motion of this oil cylinder expanding-contracting action driving bearing pin, oil cylinder needs the dismounting that enough strokes are finished bearing pin.Adopt special-purpose hydraulic cylinder to drive in the design of bearing pin dismounting, the minimum length of installation of oil cylinder is the full extensibility of oil cylinder, promptly the length of cylinder barrel and piston rod and, the installing space of needs is bigger; But,, can be very limited for the space that oil cylinder is installed for the layout of complete machine.
In view of this, demand developing a kind of dismounting, less connection bearing pin of required installing space be convenient to urgently, to satisfy the general requirement of entire mechanism layout concision and compact.
The model utility content
At above-mentioned defective, the technical problem that the utility model solves is, a kind of connection bearing pin that has from the dismounting function is provided.
The connection bearing pin that the utility model provides is used to connect two structure members, comprises bearing pin body, cylinder cap, piston, piston rod and fixed card assembly; One side of described bearing pin body has the piston cavity of ccontaining piston; The bearing pin body of described cylinder cap and described piston cavity opening end is connected by sealing; Described piston places in the piston cavity of described bearing pin body; One end of described piston rod places in the piston cavity of described bearing pin body fixedlys connected with described piston, and its other end stretches out from the middle part of described cylinder cap; Described fixed card assembly is used for fixing relative position between the external part of described piston rod and the structure member; Described cylinder cap has the oil duct that is communicated with the piston rod chamber, and described piston rod has the oil duct that is communicated with the piston rodless cavity.
Preferably, described fixed card assembly comprises supporting part, slide block and clamp; Described supporting part is arranged on the below of described bearing pin body; Described slide block is fixedlyed connected with the external part of described piston rod, and along with the stretching out or regain action of described piston rod, described slide block can endwisely slip along described supporting part; One end and the described slide block of described clamp are hinged; Rotate described clamp, its other end can separate with described supporting part engagement connection or disengagement.
Described supporting part is specially two struts, is symmetricly set on the both sides of bearing pin body along the shaft axis of described bearing pin body.
The bilateral symmetry of described cylinder cap is provided with and described two grooves that strut is suitable, and the groove of described cylinder cap both sides is installed on respectively on two struts, and along with the stretching out or regain action of described piston rod, described cylinder cap can endwisely slip along described strut.
Described clamp is specially two, is symmetricly set on the both sides of described slide block along the shaft axis of described bearing pin body; All be arranged at intervals with first draw-in groove and second draw-in groove suitable on described two struts vertically, and first draw-in groove and second draw-in groove on two struts are symmetrical arranged respectively with described clamp.
Preferably, between first draw-in groove of described two struts and second draw-in groove, be respectively arranged with at least one the 3rd draw-in groove, and at least one the 3rd draw-in groove on two struts is symmetrical arranged.
Preferably, the opposite side axle head of described bearing pin body has the guiding chamfering.
Preferably, the middle part of described slide block has tapped hole, and the external part of described piston rod has outside thread, is threaded between described piston rod and the described slide block.
Preferably, also comprise locking nut, the external part of described piston rod screws out the back and locks by locking nut from the tapped hole of described slide block.
Preferably, it is hinged to adopt screw bolt and nut to realize between described clamp and the slide block.
The connection bearing pin that the utility model provides compared with prior art is equipped with in the design that special-purpose hydraulic cylinder drives bearing pin folding dress existing, and reducing the labor intensity of disassembling and assembling pin shaft, but needed installing space is bigger; Connection bearing pin described in the utility model self has the dismounting function, and its dismounting operation also is to adopt the hydraulic oil cylinder driving mode, and the bearing pin body is designed to the hollow structure as cylinder barrel, fixes by the relative position between fixed card assembly assurance piston rod and the structural member.During operation, needed minimum length of installation is the length of piston rod only, is beneficial to the optimal design of general arrangement.In addition, the cylinder barrel of bearing pin body double as oil cylinder compared with prior art of the present utility model, and then reduce materials, reduce the complete machine cost.
In the preferred version of the present utility model, described supporting part is specially two struts that are symmetricly set on described bearing pin body both sides, be disposed with first draw-in groove and second draw-in groove that are used for fixing clamp vertically on the strut, when the movable end of described clamp places in first draw-in groove, rodless cavity and the conducting of pressure oil circuit, the bearing pin body shaft is to stretching out, rotate clamp and deviate from first draw-in groove this moment, rod chamber and the conducting of pressure oil circuit, piston rod is to withdrawal, rotate clamp and place in second draw-in groove this moment, so far, finishes the operation of dress pin reliably.
In another preferred version of the present utility model, between first draw-in groove of strut and second draw-in groove, be provided with the 3rd draw-in groove, in the time of when oil cylinder is stretched state entirely, can not finishing the operation of dress pin, regain clamp to the three draw-in grooves earlier, stretch out the bearing pin body once more, regain piston rod, finish the operation of dress pin, can adapt to the requirement of different assembly spaces.
The connection bearing pin that the utility model provides is applicable to that the bearing pin between the large scale structure member connects, and need to be specially adapted to linkage structure between each parts of engineering machinery of split transportation.
Description of drawings
Fig. 1 is the overall structure schematic representation of connection bearing pin described in the utility model;
Fig. 2 is that the B of cylinder cap shown in Fig. 1 and cylinder barrel is to view;
Fig. 3 is that the A of cylinder cap shown in Fig. 1 is to view;
Fig. 4 is the assembly relation schematic representation between clamp described in the utility model and the slide block;
Fig. 5 is the application state schematic representation of connection bearing pin described in the utility model; Position relation when wherein, Fig. 5 a is depicted as the clamp movable end and places first draw-in groove between each parts; Position relation when Fig. 5 b is depicted as the clamp movable end and places the 3rd draw-in groove between each parts; Position relation when Fig. 5 c is depicted as the clamp movable end and places second draw-in groove between each parts.
Among Fig. 1-Fig. 5:
Embodiment
Specify present embodiment below in conjunction with Figure of description.
See also Fig. 1, this figure is the overall structure schematic representation of connection bearing pin described in the utility model.
The connection bearing pin that the utility model provides is used to connect two structure members, and it comprises bearing pin body 1, cylinder cap 2, piston 3, piston rod 4 and fixed card assembly 5; Its key points in design is the cylinder barrel of bearing pin body 1 double as driving oil cylinder.
Under the situation that satisfies the bearing pin force request, have the piston cavity 11 of ccontaining piston 3 in a side of described bearing pin body 1; Described cylinder cap 2 is connected by sealing with the bearing pin body 1 of described piston cavity 11 opening ends; Described piston 3 places in the piston cavity 11 of described bearing pin body 1; One end of described piston rod 4 places in the piston cavity 11 of described bearing pin body 1 fixedlys connected with described piston 3, and its other end stretches out from the middle part of described cylinder cap 2; As shown in the figure, described piston 3 is separated into rod chamber and rodless cavity with piston cavity 11.Need to prove, between described piston 3 and the pin car body 1, between piston rod 4 and the cylinder cap 2 and between cylinder cap 2 and the bearing pin body 1 realization of sealing same as the prior art, do not repeat them here.
Referring to Fig. 2, this figure is that the B of cylinder cap shown in Fig. 1 and cylinder barrel is to view.
Described cylinder cap 2 has first oil duct 21 that is communicated with the piston rod chamber, and described piston rod 4 has second oil duct 41 that is communicated with the piston rodless cavity; The rodless cavity of described piston cavity 11 is communicated with the pressure oil circuit, when rod chamber is communicated with oil return circuit, described bearing pin body 1 stretches out vertically with respect to structure member; The rod chamber of described piston cavity 11 is communicated with the pressure oil circuit, when rodless cavity is communicated with oil return circuit, described bearing pin body 1 is regained vertically with respect to structure member.
As shown in Figure 1, described fixed card assembly 5 is used for fixing relative position between the external part of described piston rod 4 and the structure member, when the rodless cavity of piston cavity 11 be communicated with the pressure oil circuit, when rod chamber is communicated with oil return circuit, piston rod 4 is with respect to the structure member fixed-site, bearing pin body 1 is with respect to the structure member axial action, be plugged in to bearing pin body 1 in the mounting hole of two structure members that connected, promptly finish the assembly manipulation of bearing pin.
Described fixed card assembly 5 comprises supporting part, slide block 52 and clamp 53; Described supporting part is arranged on the below of described bearing pin body 1, and is motionless in the fixed-site of the described supporting part of practical application, for bearing pin body 1 stretch out or recovery operation provides support; Described slide block 52 is fixedlyed connected with the external part of described piston rod 4, and along with the stretching out or regain action of described piston rod 4, described slide block 52 can endwisely slip along described supporting part; One end and the described slide block 52 of described clamp 53 are hinged; Rotate described clamp, its other end can separate with described supporting part engagement connection or disengagement.
Shown in the figure, described supporting part is specially two struts 51, is symmetricly set on the both sides of bearing pin body 1 along the shaft axis of described bearing pin body 1.As previously mentioned, fix with the relative position between the structure member that is connected at described two struts 51 of practical application.Be understandable that described supporting part also can be other forms, use needs all in the protection domain of this patent as long as satisfy.
See also Fig. 3, this figure is that the A of cylinder cap shown in Fig. 1 is to view.
As shown in Figure 3, the bilateral symmetry of described cylinder cap 2 is provided with the groove 22 suitable with described two struts 51, the bottom land of described groove 22 matches for sectional shape and the size with described two struts 51, the groove 22 of described cylinder cap 2 both sides is installed on respectively on two struts 51, along with the stretching out or regain action of described piston rod 51, described cylinder cap 2 can endwisely slip along described strut 51.Shown in the figure, the sectional shape of strut 51 is circular, guarantees that force of sliding friction is less between cylinder cap 2 and the strut 51, and flexible movements are reliable.
Further, see also Fig. 4, this figure is the assembly relation schematic representation between clamp described in the utility model and the slide block.
Shown in the figure, the both sides of described slide block 52 are provided with clamp 53, and the clamp 53 of both sides is symmetrical arranged along the shaft axis of described bearing pin body 1, have respectively the inner groovy 521 suitable in the both sides of described slide block 52, guarantee that force of sliding friction is less between described slide block 52 and the strut 51 with two struts 51; Certainly, the cooperating structure between slide block 52 and the strut 51 also can be arranged on the lower edge of described slide block 52.
As shown in Figure 1, the middle part of described slide block 52 has tapped hole, and the external part of described piston rod 4 has outside thread, is threaded between described piston rod 4 and the described slide block 52.
The external part of described piston rod 4 screws out the back by locking nut 54 locking from the tapped hole of described slide block 52, prevent between piston rod 4 and the described slide block 52 be threaded loosening.
Shown in the figure, it is hinged to adopt screw bolt and nut to realize between described clamp 53 and the slide block 52.
Need explanation to be; described piston rod 4 is not limited to being threaded shown in the employing figure with the relation of fixedlying connected between the described slide block 52; hinged relationship between described clamp 53 and the slide block 52 is not limited to the screw bolt and nut shown in the employing figure yet and realizes, uses needs all in the protection domain of this patent as long as satisfy.
Again as shown in Figure 1, all be arranged at intervals with first draw-in groove 511 and second draw-in groove 512 suitable on described two struts 51 vertically, and first draw-in groove 511 and second draw-in groove 512 on two struts 51 are symmetrical arranged respectively with described clamp 53.Specifically please in the lump referring to Fig. 5, this figure is the application state schematic representation of connection bearing pin described in the utility model.Double dot dash line shows the structure member that bearing pin connects among the figure.
Wherein, Fig. 5 a shows the initial mounting point of connection bearing pin described in the utility model.
When load connects bearing pin, at first bearing pin body 1 is stretched into pin and go in the pin-and-hole of structure member to be connected, described two struts 51 are inserted the groove of described cylinder cap 2 both sides and the inner groovy of described slide block 52 both sides respectively; Rotate and the hinged clamp 53 in described slide block 52 two ends, the movable end of the clamp 53 of both sides is placed in first draw-in groove 511 on described two struts 51, with respect to strut 51, the fixed-site of piston rod 4.Then, by HYDRAULIC CONTROL SYSTEM, feed pressure oil for second oil duct 41 of described piston rod 4, first oil duct 21 of described cylinder cap 2 takes back oil simultaneously, and under the effect of pressure oil, bearing pin body 1 axially stretches out motion, insert in the pin-and-hole of structure member to be connected, thereby realize the operation of dress pin.
In dress pin process, bearing pin body 1 is supported, is led by the pin-and-hole of structure member to be connected and the groove 22 of cylinder cap 2 both sides, because initial rigging position precision is most important for the plug-in mounting process of whole bearing pin, the opposite side axle head of described bearing pin body 1 has the guiding chamfering, is beneficial to the centering guiding of bearing pin body 1.
Further, as shown in Figure 4 and Figure 5, between first draw-in groove 511 of described two struts 51 and second draw-in groove 512, be respectively arranged with the 3rd draw-in groove 513, and the 3rd draw-in groove 513 on two struts 51 is symmetrical arranged.Design like this can adapt to oil cylinder and be in the state that stretches out entirely, and the operating mode that bearing pin body 1 is not seated.
Working procedure: at first, rotate with the hinged clamp 53 of described slide block 52 from first draw-in groove 511, to deviate from, this moment, piston rod 4 was in the retractable state, and exists frictional force to be in stationary state between bearing pin body 1 and the pin-and-hole with respect to structure member to be connected; Then, by HYDRAULIC CONTROL SYSTEM, feed pressure oil for first oil duct 21 of described cylinder cap 2, second oil duct 41 of described piston rod 4 takes back oil, under the effect of pressure oil, piston rod 4 is made axial recovery movement, moves to the 3rd draw-in groove 513 places until described clamp 53; At last, rotate and the hinged clamp 53 in described slide block 52 two ends, the movable end of the clamp 53 of both sides is placed in the 3rd draw-in groove 513 on described two struts 51, at this moment, with respect to strut 51, the fixed-site of piston rod 4, the position relation between each parts is shown in Fig. 5 b.Repeat above-mentioned dress pin operation, be seated until bearing pin body 1.Certainly, the 3rd draw-in groove 513 on the described strut 51 also can be set to a plurality of, and oil cylinder repeats repeatedly to stretch in dress pin process, to adapt to the requirement of actual concrete assembly space.
After bearing pin body 1 is seated, repeat to regain the operation of piston rod 4, the movable end of described clamp 53 places in second draw-in groove 512 of strut 51, plays the effect of bearing pin baffle plate simultaneously, prevent the bearing pin axial float, the position relation between each parts is shown in Fig. 5 c.
The operating process of pulling pin is opposite with the sequence of movement of dress pin operating process, does not repeat them here.
To sum up, connection bearing pin provided by the utility model has from the dismounting function, utilizes the main frame power source, realizes the disassemble or assemble of bearing pin body, and then reduces labor intensity, meets the requirement of human oriented design; Simultaneously, utilize the ingenious design of fixed card assembly, rational deployment efficiently solves the difficult problem that the mechanism space is little, the titer compressing cylinder can't meet design requirement; Has entire mechanism layout concision and compact, advantage in light weight, that cost is low.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1, connect bearing pin, be used to connect two structure members, it is characterized in that, comprising:
The bearing pin body, the one side has the piston cavity of ccontaining piston;
Cylinder cap is connected by sealing with the bearing pin body of described piston cavity opening end;
Piston places in the piston cavity of described bearing pin body;
Piston rod, one end place in the piston cavity of described bearing pin body fixedlys connected with described piston, and its other end stretches out from the middle part of described cylinder cap; With
The fixed card assembly is used for fixing relative position between the external part of described piston rod and the structure member;
Described cylinder cap has the oil duct that is communicated with the piston rod chamber, and described piston rod has the oil duct that is communicated with the piston rodless cavity.
2, connection bearing pin according to claim 1 is characterized in that, described fixed card assembly comprises:
Supporting part is arranged on the below of described bearing pin body;
Slide block is fixedlyed connected with the external part of described piston rod, and along with the stretching out or regain action of described piston rod, described slide block can endwisely slip along described supporting part; With
Clamp, one end and described slide block are hinged; Rotate described clamp, its other end can separate with described supporting part engagement connection or disengagement.
3, connection bearing pin according to claim 2 is characterized in that, described supporting part is specially two struts, is symmetricly set on the both sides of bearing pin body along the shaft axis of described bearing pin body.
4, connection bearing pin according to claim 3, it is characterized in that, the bilateral symmetry of described cylinder cap is provided with and described two grooves that strut is suitable, the groove of described cylinder cap both sides is installed on respectively on two struts, along with the stretching out or regain action of described piston rod, described cylinder cap can endwisely slip along described strut.
5, connection bearing pin according to claim 4 is characterized in that,
Described clamp is specially two, is symmetricly set on the both sides of described slide block along the shaft axis of described bearing pin body;
All be arranged at intervals with first draw-in groove and second draw-in groove suitable on described two struts vertically, and first draw-in groove and second draw-in groove on two struts are symmetrical arranged respectively with described clamp.
6, connection bearing pin according to claim 5 is characterized in that, is respectively arranged with at least one the 3rd draw-in groove between first draw-in groove of described two struts and second draw-in groove, and at least one the 3rd draw-in groove on two struts is symmetrical arranged.
7, connection bearing pin according to claim 1 is characterized in that, the opposite side axle head of described bearing pin body has the guiding chamfering.
8, connection bearing pin according to claim 2 is characterized in that, the middle part of described slide block has tapped hole, and the external part of described piston rod has outside thread, is threaded between described piston rod and the described slide block.
9, connection bearing pin according to claim 8 is characterized in that, also comprises locking nut, and the external part of described piston rod screws out the back and locks by locking nut from the tapped hole of described slide block.
10, connection bearing pin according to claim 2 is characterized in that, it is hinged to adopt screw bolt and nut to realize between described clamp and the slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201400726U CN201277232Y (en) | 2008-10-21 | 2008-10-21 | Connection pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201400726U CN201277232Y (en) | 2008-10-21 | 2008-10-21 | Connection pin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277232Y true CN201277232Y (en) | 2009-07-22 |
Family
ID=40894818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201400726U Expired - Lifetime CN201277232Y (en) | 2008-10-21 | 2008-10-21 | Connection pin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277232Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725599B (en) * | 2008-10-21 | 2011-07-27 | 徐工集团工程机械股份有限公司建设机械分公司 | Connecting pin shaft |
| CN102962300A (en) * | 2012-12-03 | 2013-03-13 | 太原重工股份有限公司 | Hydraulic locking device |
| CN105422571A (en) * | 2014-01-19 | 2016-03-23 | 方义飞 | Pin roll coupling assembly, pin roll base thereof, and manufacturing method of pin roll base |
-
2008
- 2008-10-21 CN CNU2008201400726U patent/CN201277232Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725599B (en) * | 2008-10-21 | 2011-07-27 | 徐工集团工程机械股份有限公司建设机械分公司 | Connecting pin shaft |
| CN102962300A (en) * | 2012-12-03 | 2013-03-13 | 太原重工股份有限公司 | Hydraulic locking device |
| CN105422571A (en) * | 2014-01-19 | 2016-03-23 | 方义飞 | Pin roll coupling assembly, pin roll base thereof, and manufacturing method of pin roll base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XCMG CONSTRUCTION MACHINERY CO., LTD.CONSTRUCTION Free format text: FORMER OWNER: XUZHOU HEAVY MACHINERY CO., LTD. Effective date: 20100608 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 221004 NO.165, TONGSHAN ROAD, XUZHOU CITY, JIANGSU PROVINCE TO: 221004 NO.19, TAOSHAN ROAD, ECONOMIC DEVELOPMENT ZONE, XUZHOU CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100608 Address after: 221004 No. 19 Peach Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee after: Building Machinery Co., Ltd., XCMG Construction Machinery Co., Ltd. Address before: 221004 Xuzhou, Zhejiang Province, Jiangsu Road No. 165 Patentee before: Xuzhou Heavy Machinery Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20090722 Effective date of abandoning: 20081021 |