CN201889623U - Pin plugging and pulling device of engineering vehicle and cross-country front lifting machine - Google Patents
Pin plugging and pulling device of engineering vehicle and cross-country front lifting machine Download PDFInfo
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- CN201889623U CN201889623U CN2010205827041U CN201020582704U CN201889623U CN 201889623 U CN201889623 U CN 201889623U CN 2010205827041 U CN2010205827041 U CN 2010205827041U CN 201020582704 U CN201020582704 U CN 201020582704U CN 201889623 U CN201889623 U CN 201889623U
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- pin
- locating part
- oil cylinder
- pin assembly
- plug
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Abstract
The utility model discloses a pin plugging and pulling device of an engineering vehicle and a cross-country front lifting machine with the pin plugging and pulling device. The pin plugging and pulling device comprises a first pin, a second pin, an oil cylinder, a first limit part, a second limit part, a third limit part and a fourth limit part, wherein the first pin and the second pin are used for articulating a first component and a second component, are positioned at the same axis and move in opposite direction; a piston rod of the oil cylinder and a cylinder body are respectively and fixedly connected with the first pin and the second pin; the first limit part and the second limit part are respectively used for limiting the pin plugging end position of the first pin and the second pin; and the third limit part and the fourth limit part are respectively used for limiting the pin pulling end position of the first pin and the second pin; the first limit part and the second limit part are simultaneously positioned on the first component or the second component; and the third limit part and the fourth limit part are simultaneously positioned on the first component or the second component. in the pin plugging and pulling device, the moving direction of the oil cylinder is the same as the plugging and pulling direction of the pins, and the power generated by the oil cylinder is all used for overcoming the friction generated in the processes of plugging and pulling the pins; therefore, the device has the advantage of small energy consumption.
Description
Technical field
The utility model relates to the engineering truck field, relates in particular to a kind of pin assembly that plugs and unplugs of engineering truck, and the utility model also relates to a kind of cross-country front swing-machine that this plugs and unplugs pin assembly that has.
Background technology
The for example cross-country front swing-machine of engineering truck is often used and is plugged and unplugged pin assembly.Fig. 1 shows the structural representation of cross-country front swing-machine 10, as shown in Figure 1, because of going into the road, needs travel, car load is set out on a journey and can not be surpassed certain height when travelling, therefore need do one on vehicle frame 5 can be toward lower swing to reduce the swing arm 1 of car load height, as shown in Figure 2, and when box, swing arm 1 is risen around pin 3 by oil cylinder 4, will sell 2 then and insert; Vehicle is set out on a journey when travelling, and will sell 2 and extract, and swing arm 1 is fallen around pin 2 by oil cylinder 4.
Fig. 3 shows the structural representation that plugs and unplugs pin assembly of cross-country front swing-machine shown in Figure 1.As shown in Figure 3, pin 2,2 ' is respectively arranged one at left and right sides, general insert-pull pin device generally adopts two oil cylinders 6,7 at present, because of vehicle frame 5 inner spaces narrow, can only adopt diagonally opposing corner to be staggeredly arranged, each oil cylinder plugs and unplugs pin 2,2 ', i.e. an oil cylinder 6 and oil cylinder 7 interlaced arrangement separately, pin 2 is by oil cylinder 6 controls, and pin 2 ' is by oil cylinder 7 controls.
Plug and unplug in the pin assembly above-mentioned, the bearing pin direction of motion and the oil cylinder direction of motion are inconsistent, have side force when plugging and unplugging pin, the following problem of ubiquity in assembling and use:
1, long-term use can cause the hinge serious wear, abnormal sound during the oil cylinder motion; 2, under lubricated situation such as bad, can not accurately pin be inserted and extract; 3, oil cylinder power can not all be used to plug and unplug pin, causes under the square one, and it is bigger that oil cylinder need be done; 4, use two oil cylinder installation and maintenance workloads big, the trouble point is many, the manufacturing cost height.
Therefore, be necessary to research and develop a kind of new pin assembly that plugs and unplugs, to solve the bearing pin direction of motion and the inconsistent a series of problems brought of the oil cylinder direction of motion; Reduce the fault point simultaneously.
The utility model content
The purpose of this utility model is to provide a kind of pin assembly that plugs and unplugs of engineering truck, to solve the bearing pin direction of motion and the inconsistent problem of bringing of the oil cylinder direction of motion.The purpose of this utility model also is to provide a kind of cross-country front swing-machine that this plugs and unplugs pin assembly that has.
For this reason, the utility model provides a kind of pin assembly that plugs and unplugs of engineering truck on the one hand, comprising: first pin that is used for hinged first member and second member and second pin that the direction of motion that coaxial line is arranged is opposite; Oil cylinder, its piston rod is fixedlyed connected with second pin with first pin respectively with cylinder body; First locating part and second locating part limit first pin and the second latch final position of selling respectively; And the 3rd locating part and the 4th locating part, limit the final position of pulling pin of first pin and second pin respectively, wherein, first locating part and second locating part are located on first member or second member simultaneously, and the 3rd locating part and the 4th locating part are located on first member or second member simultaneously.
Further, above-mentioned articulated section with first pin, corresponding first member of second pin comprises lateral wall and madial wall, the hinge point of second member that sell with first, second pin is corresponding is between the lateral wall and madial wall of first member, wherein, first locating part, second locating part, the 3rd locating part and the 4th locating part all are fixedly connected on first member.
Further, above-mentioned first locating part and second locating part are the spacing cover plate that is arranged on the lateral wall of first member.
Further, above-mentioned the 3rd locating part and the 4th locating part are the stop collar that is arranged on the madial wall of first member.
Further, the above-mentioned pin assembly that plugs and unplugs also comprises the copper sheathing that is embedded on the articulated section of second member.
Further, the piston rod of above-mentioned oil cylinder and first pin link together by spiro connecting piece, and the cylinder body of oil cylinder and second pin link together by spiro connecting piece.
Further, above-mentioned first member is the swing arm of front swing-machine, and second member is the vehicle frame of front swing-machine.
According on the other hand of the present utility model, a kind of cross-country front swing-machine is provided, it has the pin assembly that plugs and unplugs of above-mentioned structure, and wherein, this first member that plugs and unplugs pin assembly is swing arm, and this second member is a vehicle frame.
The pin assembly that plugs and unplugs of the present utility model uses the piston rod of same oil cylinder and insertion and the pull action that cylinder body has been controlled heterodromous two bearing pins respectively, than in the prior art with two oil cylinders, each oil cylinder structure of a bearing pin of control separately wants simple, and the trouble point is few.Simultaneously, the direction of motion of oil cylinder and pin to plug and unplug direction consistent, can accurately pin be inserted and extract.In addition, the direction of motion of oil cylinder and pin to plug and unplug direction consistent, the power that oil cylinder produces all is used for overcoming the frictional force that pin plugs and unplugs process, energy consumption is little.
Except purpose described above, feature and advantage, other purpose, feature and the advantage that the utlity model has will be described in further detail in conjunction with the accompanying drawings.
Description of drawings
Constitute this specification a part, be used for further understanding accompanying drawing of the present utility model and show preferred embodiment of the present utility model, and be used for illustrating principle of the present utility model with specification.Among the figure:
Fig. 1 shows the structural representation of cross-country front swing-machine;
Fig. 2 shows the structural representation of the oscillating arm mechanisms in the cross-country front swing-machine shown in Figure 1;
Fig. 3 shows the structural representation that plugs and unplugs pin assembly in the oscillating arm mechanisms shown in Figure 2;
Fig. 4 shows the structural representation that plugs and unplugs pin assembly according to the utility model engineering truck, wherein, plugs and unplugs pin assembly and is in the latch state; And
Fig. 5 shows the structural representation that plugs and unplugs pin assembly shown in Figure 4, wherein, plugs and unplugs pin assembly and is in the state of pulling pin.
The specific embodiment
Describe below in conjunction with the pin assembly that plugs and unplugs that uses on the oscillating arm mechanisms of accompanying drawing to cross-country front swing-machine of the present utility model.But the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Fig. 4 shows the structural representation that plugs and unplugs pin assembly according to engineering truck of the present utility model, wherein plug and unplug pin assembly and be in the latch state, Fig. 5 shows the structural representation that plugs and unplugs pin assembly shown in Figure 4, wherein, plugs and unplugs pin assembly and is in the state of pulling pin.Shown in Figure 4 and 5, this insert-pull pin device comprises: first pin, 2 and second pin 2 ' that is used for hinged swing arm (i.e. first member) 1 and vehicle frame (i.e. second member) 5 that the direction of motion that coaxial line is arranged is opposite; Be positioned at the oil cylinder 9 between first pin, 2 and second pin 2 '; Limit the spacing cover plate 8 (first locating part) and the spacing cover plate (second locating part) 8 ' of the latch final position of first pin, 2 and second pin 2 ' respectively; Limit stop collar (the 3rd locating part) 11 and the stop collar (the 4th locating part) 11 ' of the final position of pulling pin of first pin, 2 and second pin 2 ' respectively.
The piston rod of oil cylinder 9 is fixedlyed connected with first pin 2, and the cylinder body of oil cylinder is fixedlyed connected with second pin 2 ', and vice versa.So, the direction of motion of oil cylinder 9 is consistent with the insert-pull pin direction of first pin, 2 and second pin 2 ', has overcome the side force problem when plugging and unplugging pin.
Preferably fixedly connected with second pin with first pin by threaded connector respectively in the end of piston rod and cylinder body.Certainly, the fixed form that also can adopt other is fixedly connected on first pin and second pin on piston rod and the cylinder body, for example by the mode of welding, by riveted way, pass through the mode of adaptor etc.
Stop collar 11,11 ' and oil cylinder 9 be coaxially set, have spacing end 11a, this spacing end 11a allows piston rod or cylinder body to move freely, but does not allow first pin or second pin not to pass through.This stop collar 11,11 ' has certain length, so that when pulling pin final position, first pin or second pin are in the inside that still is in stop collar, this shows, this stop collar also plays a protective role to first pin and second pin.Expect that easily this stop collar 11,11 ' can be replaced by other structure or the part that only play position-limiting action.
In cross-country front swing-machine, the articulated section of swing arm 1 comprises lateral wall 1a and madial wall 1b, the articulated section of vehicle frame 5 is folded between lateral wall 1a and the madial wall 1b, and spacing cover plate 8,8 ' is installed on the lateral wall 1a by screw, and stop collar 11,11 ' is installed on the madial wall 1b by screw.
The articulated section 5a of above-mentioned vehicle frame 5 preferably is embedded with copper sheathing 12, so that when wearing and tearing changed.This copper sheathing 12 can be installed on the 5a of articulated section by interference fit.
Below in conjunction with Fig. 4 and Fig. 5 the insert-pull pin process that plugs and unplugs pin assembly is described.
When latch as shown in Figure 4, the piston rod of oil cylinder 9 stretches out, and makes piston rod and cylinder body respectively to two lateral movements, promotes first pin, 2 and second pin 2 ' and inserts between swing arm 1 and vehicle frame 5, arrive the precalculated position up to first pin, 2 and second pin 2 ', till limited cover plate 8,8 ' blocks.
When first pin, 2 and second pin, the 2 ' resistance that is subjected to that causes the left and right sides because of reasons such as insufficient lubrications is inconsistent, oil cylinder 9 meeting elder generations are with for example first pin, 2 insertions of pin of the less side of resistance, when the less side of resistance first pin 2 moves to the precalculated position, when limited cover plate 8 blocks, oil cylinder 9 inserts second pin 2 ' of opposite side again, also arrives the precalculated position up to second pin 2 ' of opposite side and is blocked by the spacing cover plate 8 ' of this side.
When pulling pin as shown in Figure 5, the piston rod withdrawal of oil cylinder 9 makes piston rod and cylinder body to central motion, and pulling first pin 2 and second pin 2 ' is extracted between swing arm 1 and vehicle frame 5, arrive the precalculated position up to first pin, 2 and second pin 2 ', till limited cover 11,11 ' blocks.
When first pin, 2 and second pin, the 2 ' resistance that is subjected to that causes the left and right sides because of reasons such as insufficient lubrications is inconsistent, oil cylinder 9 can be earlier with the pin of the less side of resistance for example first pin 2 extract, when first pin of the less side of resistance moves to the precalculated position, when limited cover 11 blocks, oil cylinder 92 ' is extracted second pin of opposite side again, also arrives the precalculated position up to second pin 2 ' of opposite side and is blocked by the stop collar 11 ' of this side.
The pin assembly that plugs and unplugs of the present utility model has purposes widely, can use in first member with hinged relationship and second member.
In an optional embodiment, first member is configured to the version of above-mentioned swing arm, and its articulated section has lateral wall and madial wall, and second member is configured to the version of above-mentioned vehicle frame, and its articulated section is between madial wall and lateral wall.At this moment, plug and unplug pin assembly attached on first member.
In another optional embodiment, first member is configured to the version of vehicle frame, and second member also is configured to the version of vehicle frame.When extend in the inboard of the articulated section of second member articulated section of first member, plug and unplug the oil cylinder of pin assembly and pin attached on first member; When extended in the outside of the articulated section of second member articulated section of first member, the oil cylinder of insert-pull pin device and pin were attached on second member.
By above description as can be seen, the pin assembly that plugs and unplugs of the present utility model uses the piston rod of same oil cylinder and insertion and the pull action that cylinder body has been controlled heterodromous two bearing pins respectively, than in the prior art with two oil cylinders, each oil cylinder structure of a bearing pin of control separately wants simple, and the trouble point is few.Simultaneously, the direction of motion of oil cylinder and pin to plug and unplug direction consistent, can accurately pin be inserted and extract.In addition, the direction of motion of oil cylinder and pin to plug and unplug direction consistent, the power that oil cylinder produces all is used for overcoming the frictional force that pin plugs and unplugs process, makes energy consumption less.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
- An engineering truck plug and unplug pin assembly, comprise that opposite first pin and second that is used for hinged first member and second member of the direction of motion that coaxial line is arranged sells, it is characterized in that, also comprise:Oil cylinder, its piston rod is fixedlyed connected with second pin with described first pin respectively with cylinder body;First locating part and second locating part limit described first pin and the second latch final position of selling respectively; AndThe 3rd locating part and the 4th locating part limit described first pin and second final position of selling of pulling pin respectively,Wherein, described first locating part and second locating part are located on described first member or second member simultaneously, and described the 3rd locating part and the 4th locating part are located on described first member or second member simultaneously.
- Engineering truck according to claim 1 plug and unplug pin assembly, it is characterized in that,The articulated section of described first member that sell with described first, second pin is corresponding comprises lateral wall and madial wall,The hinge point of described second member that sell with described first, second pin is corresponding is between the lateral wall and madial wall of described first member, wherein, described first locating part, second locating part, the 3rd locating part and the 4th locating part all are fixedly connected on described first member.
- Engineering truck according to claim 2 plug and unplug pin assembly, it is characterized in that described first locating part and second locating part are the spacing cover plate that is arranged on the lateral wall of described first member.
- Engineering truck according to claim 2 plug and unplug pin assembly, it is characterized in that described the 3rd locating part and the 4th locating part are the stop collar that is arranged on the madial wall of described first member.
- Engineering truck according to claim 2 plug and unplug pin assembly, it is characterized in that, also comprise the copper sheathing that is embedded on the articulated section of described second member.
- Engineering truck according to claim 1 plug and unplug pin assembly, it is characterized in that the piston rod of described oil cylinder and described first pin link together by spiro connecting piece, the cylinder body of described oil cylinder and described second is sold and is linked together by spiro connecting piece.
- Engineering truck according to claim 1 plug and unplug pin assembly, it is characterized in that described first member is the swing arm of front swing-machine, described second member is the vehicle frame of front swing-machine.
- 8. a cross-country front swing-machine is characterized in that, has each described pin assembly that plugs and unplugs in the claim 1 to 7, and wherein, described first member that plugs and unplugs pin assembly is swing arm, and described second member is a vehicle frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205827041U CN201889623U (en) | 2010-10-28 | 2010-10-28 | Pin plugging and pulling device of engineering vehicle and cross-country front lifting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205827041U CN201889623U (en) | 2010-10-28 | 2010-10-28 | Pin plugging and pulling device of engineering vehicle and cross-country front lifting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201889623U true CN201889623U (en) | 2011-07-06 |
Family
ID=44219099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205827041U Expired - Fee Related CN201889623U (en) | 2010-10-28 | 2010-10-28 | Pin plugging and pulling device of engineering vehicle and cross-country front lifting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201889623U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015184493A1 (en) * | 2014-06-04 | 2015-12-10 | Dt-Hiload Australia Pty Ltd | Device for inserting/removing pivot pins |
| CN113695871A (en) * | 2021-09-24 | 2021-11-26 | 北京三一智造科技有限公司 | Pin shaft dismounting device, frame body connecting structure and operation machine |
| US11786998B2 (en) | 2021-09-24 | 2023-10-17 | Beijing Sany Intelligent Manufacturing Technology Co., Ltd. | Pin shaft dismounting and mounting device, frame body connecting structure and work machine |
-
2010
- 2010-10-28 CN CN2010205827041U patent/CN201889623U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015184493A1 (en) * | 2014-06-04 | 2015-12-10 | Dt-Hiload Australia Pty Ltd | Device for inserting/removing pivot pins |
| CN113695871A (en) * | 2021-09-24 | 2021-11-26 | 北京三一智造科技有限公司 | Pin shaft dismounting device, frame body connecting structure and operation machine |
| CN113695871B (en) * | 2021-09-24 | 2022-07-29 | 北京三一智造科技有限公司 | Pin shaft dismounting device, frame body connecting structure and operation machine |
| WO2023045194A1 (en) * | 2021-09-24 | 2023-03-30 | 北京三一智造科技有限公司 | Pin shaft disassembly and assembly apparatus, frame connecting structure, and work machine |
| US11786998B2 (en) | 2021-09-24 | 2023-10-17 | Beijing Sany Intelligent Manufacturing Technology Co., Ltd. | Pin shaft dismounting and mounting device, frame body connecting structure and work machine |
| JP7446479B2 (en) | 2021-09-24 | 2024-03-08 | 北京三一智造科技有限公司 | Pin shaft attachment/detachment device, frame body connection structure, and working machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20151028 |
|
| EXPY | Termination of patent right or utility model |