CN202745101U - Engineering machine and anti-pin-falling device thereof - Google Patents
Engineering machine and anti-pin-falling device thereof Download PDFInfo
- Publication number
- CN202745101U CN202745101U CN201220482363.XU CN201220482363U CN202745101U CN 202745101 U CN202745101 U CN 202745101U CN 201220482363 U CN201220482363 U CN 201220482363U CN 202745101 U CN202745101 U CN 202745101U
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- China
- Prior art keywords
- pin
- preventing device
- crimping bar
- mount pad
- disconnection preventing
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Abstract
The utility model discloses an anti-pin-falling device which comprises a hinge pin rack, a hinge pin, a press strip and an installing seat, wherein the hinge pin rack is provided with a pin hole, the hinge pin is inserted in the pin hole, the installing seat is fixedly arranged on an upper panel of the hinge pin rack, the press strip is rotatablely connected with the installing seat, and the rotating centerline of the press strip is perpendicular to the centerline of the pin hole; a removable tension spring is also arranged between the press strip and the upper panel; and the head part of one end of the press strip is cone-shaped and can be pressed in a central hole of the hinge pin. Because the cone-shaped structure at one end of the press strip can be pressed in the central hole of the hinge pin and the tension spring is arranged between the press strip and the upper panel, under the action of a pulling force of the tension spring, the press strip applies a downward pressure to the hinge pin, so that the hinge pin is maintained in the pin hole and does not fall off or gets lost in the states of transportation and operation. The utility model also discloses an engineering machine comprising the anti-pin-falling device.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to the pin-disconnection preventing device that a kind of bearing pin be used to preventing engineering machinery comes off.In addition, the utility model also relates to a kind of engineering machinery that comprises above-mentioned pin-disconnection preventing device.
Background technology
The hitch frame of bulldozer is equipped with a towing pin, is used for connecting rope other locomotives or material are carried out towage.When bulldozer does not need towage, usually towing pin directly is placed in the pin-and-hole of hitch frame, so in the operation and transport process of bulldozer, towing pin is easy to lose.
In order to prevent that towing pin from losing, a kind of mode commonly used is for to connect together towing pin with chain link with other parts at present.Adopt this kind mode, lose although can prevent towing pin because towing pin and chain link weld together, when needs are changed towing pin, only destroy chain link just can, very inconvenient; And the locking pin mode that adopts chain link to connect has one section chain link and is exposed to the outside after installation, not attractive in appearance; In addition, this kind locking pin mode is only applicable to be in the bearing pin of vertical direction, for horizontally disposed bearing pin, can not play good anticreep effect.
In addition, also there are the problems referred to above in the bearing pin that is similar to other engineering machinery of above-mentioned towing pin setting.
In view of this, how designing a kind of bearing pin that can prevent and lose and be applicable to the pin-disconnection preventing device of any direction bearing pin installation, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of pin-disconnection preventing device be used to preventing that bearing pin from coming off, and this pin-disconnection preventing device can prevent that the bearing pin that any direction is installed from losing.Another purpose of the present utility model provides a kind of engineering machinery that comprises above-mentioned pin-disconnection preventing device.
For solving the problems of the technologies described above, the utility model provides a kind of pin-disconnection preventing device, comprise the bearing pin frame with pin-and-hole and be inserted into the interior bearing pin of described pin-and-hole, also comprise crimping bar and mount pad, described mount pad is packed on the top panel of described bearing pin frame, described crimping bar and described mount pad are rotationally connected, and its rotary centerline is perpendicular to the center line of described pin-and-hole; Be provided with dismountable extension spring between described crimping bar and the described top panel; One termination section of described crimping bar is taper, and can be pressed in the centre bore of described bearing pin.
Preferably, described crimping bar is rotationally connected by bolt and described mount pad; Described bolt is fixed by nut and described mount pad.
Preferably, described crimping bar is rotationally connected by rod member with holes and described mount pad; Described rod member with holes is fixed by slotted nut and cottor pin and described mount pad.
Preferably, be respectively equipped with the first hook corresponding to position and the second hook on described crimping bar and the described top panel, the two ends of described extension spring are mounted on respectively described the first hook, described the second hook.
Preferably, described crimping bar is S shape or Z-shaped.
The utility model also provides a kind of engineering machinery, comprises above-mentioned each described pin-disconnection preventing device.
Preferably, described engineering machinery is specially bulldozer.
Relative above-mentioned background technology, the pin-disconnection preventing device that the utility model provides comprises the bearing pin frame with pin-and-hole and is inserted into the interior bearing pin of described pin-and-hole, also comprise crimping bar and mount pad, described mount pad is packed on the top panel of described bearing pin frame, described crimping bar and described mount pad are rotationally connected, and its rotary centerline is perpendicular to the center line of described pin-and-hole; Also be provided with dismountable extension spring between described crimping bar and the described top panel; One termination section of described crimping bar is taper, and can be pressed in the centre bore of described bearing pin.In actual use, after above-mentioned pin-disconnection preventing device is installed, the pyramidal structure of described crimping bar one end can be pressed in the centre bore of bearing pin, owing between crimping bar and top panel, be provided with extension spring, under the pulling force effect of extension spring, the crimping bar can produce a downward pressure to bearing pin, so that bearing pin remains in the pin-and-hole, can not come off under transportation and job state and loses.
Description of drawings
Fig. 1 provides the structural representation of a kind of specific embodiment of pin-disconnection preventing device for the utility model;
Fig. 2 is the exploded perspective view of pin-disconnection preventing device shown in Fig. 1;
Fig. 3 is the schematic diagram of pin-disconnection preventing device shown in Fig. 1 when changing towing pin;
Fig. 4 is the structural representation of the crimping bar of pin-disconnection preventing device shown in Fig. 1.
The specific embodiment
Core of the present utility model provides a kind of pin-disconnection preventing device be used to preventing that bearing pin from coming off, and this pin-disconnection preventing device can prevent that the bearing pin that any direction is installed from losing.Another core of the present utility model provides a kind of engineering machinery that comprises above-mentioned pin-disconnection preventing device.
Be without loss of generality, the below is take a kind of towing pin of bulldozer as example, and the utility model is described in further detail with the specific embodiment by reference to the accompanying drawings.
Please refer to Fig. 1 and Fig. 2; Fig. 1 provides the structural representation of a kind of specific embodiment of pin-disconnection preventing device for the utility model; Fig. 2 is the exploded perspective view of pin-disconnection preventing device shown in Fig. 1.
In a kind of specific embodiment, the hitch frame 1 that pin-disconnection preventing device provided by the utility model comprises, described hitch frame 1 comprises top panel 12 and lower panel 13, the correspondence position of top panel 12 and lower panel 13 is provided with pin-and-hole 11.
Described towing pin 2 is inserted in the described pin-and-hole 11.
Be fixed with mount pad 3 on the top panel 12 of described hitch frame 1, the distance that described mount pad 3 is predetermined with pin-and-hole 11 maintenances on the top panel 12.Wherein, mount pad 3 can be fixedly connected with top panel 12 by the mode of welding, and this kind mode is not only easy but also reliable.
Please refer to Fig. 4, Fig. 4 is the structural representation of a kind of specific embodiment of crimping bar.
As can be seen from Figure 4, the head of described crimping bar 4 one ends has pyramidal structure, and this conical nose can be pressed in the centre bore of towing pin 2.In addition, described crimping bar 4 can be S shape, also can be for Z-shaped.
Can in several ways crimping bar 4 and mount pad 3 be rotationally connected.Wherein a kind of mode is the installing hole that rod member 51 with holes passes mount pad 3 successively, the centre bore of crimping bar 4, and with slotted nut 52 and cottor pin 53 that rod member with holes 51 is fixing; Can certainly crimping bar 4 be installed in the mount pad 3 by bolt, and with nut bolt be fixed.
Also be provided with extension spring 6 between the top panel 12 of described crimping bar 4 and described hitch frame 1.Particularly, be respectively equipped with the first hook the 41 and second hook 121 in the position of described crimping bar 4 and described top panel 12 correspondences, the two ends of described extension spring 6 are mounted on respectively on described the first hook 41, described the second hook 121.Described crimping bar 4 produces downward pressure to towing pin 2 under the effect of extension spring 6, towing pin 2 is remained in the pin-and-hole 11.
When hitch frame 1 is idle, towing pin 2 places pin-and-hole 11, the tapering point of crimping bar 4 is pressed in the centre bore of towing pin 2, owing to be arranged on the effect of the extension spring 6 between crimping bar 4 and the top panel 12,4 pairs of towing pins of crimping bar 2 can produce downward pressure, so that towing pin 2 remains in the pin-and-hole 11, difficult drop-off and losing all under transportation and job state; Even in the very large operation place of vibrations, towing pin 2 can not come off from pin-and-hole 11 under the pressure-acting of crimping bar 4 yet, thereby has effectively avoided losing of towing pin 2.In addition, because crimping bar 4 is towing pin 2 to be exerted pressure to hold it in the pin-and-hole 11 under the effect of extension spring 6, so this pin-disconnection preventing device not only can be used in the anticreep of vertical direction towing pin, can also be used for the anticreep of towing pin on horizontal direction or other any directions.
Please refer to Fig. 3, Fig. 3 is the schematic diagram of pin-disconnection preventing device that the utility model provides when changing towing pin.
In the work, if when needing to change towing pin, an end that extension spring 6 is hung on hitch frame 1 takes off from the second hook 121, and 4 pairs of towing pins 2 of crimping bar this moment no longer include pressure-acting; Exert pressure for the other end L place of crimping bar 4, crimping bar 4 is rotated around mount pad 3, thereby towing pin 2 can be deviate from from pin-and-hole 11, change.Certainly, when changing, an end that also extension spring 6 can be hung on crimping bar 6 takes off from the first hook 41.
Here it is pointed out that above-mentioned is as an example of the towing pin of bulldozer example pin-disconnection preventing device to be illustrated, and in actual the use, this pin-disconnection preventing device is not limited to described above, can also be applied in the Other Engineering machinery with similar structures and demand.
Compared with prior art, in the transportation or operation process of engineering machinery, pin-disconnection preventing device provided by the utility model all can prevent coming off of bearing pin, has reduced because the economic loss that comes off and bring of bearing pin; And, this pin-disconnection preventing device simple in structure, easy to use.In addition, because the extension spring structure in this pin-disconnection preventing device, so that this kind pin-disconnection preventing device not only can adapt to the anticreep effect of vertical direction bearing pin, and can both play the anticreep effect for the bearing pin of horizontal direction or other any direction, has wider range of application.
Except above-mentioned pin-disconnection preventing device, the utility model also provides a kind of above-mentioned pin-disconnection preventing device engineering machinery that comprises, other structures of this project machinery please refer to prior art, repeat no more here.Because above-mentioned pin-disconnection preventing device has above-mentioned effect, also has above-mentioned effect so comprise the engineering machinery of this pin-disconnection preventing device.Here also repeat no more.
Particularly, described engineering machinery is specially bulldozer.
More than engineering machinery provided by the utility model and pin-disconnection preventing device thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. pin-disconnection preventing device, comprise the bearing pin frame with pin-and-hole and be inserted into the interior bearing pin of described pin-and-hole, it is characterized in that, also comprise crimping bar and mount pad, described mount pad is packed on the top panel of described bearing pin frame, described crimping bar and described mount pad are rotationally connected, and its rotary centerline is perpendicular to the center line of described pin-and-hole; Be provided with dismountable extension spring between described crimping bar and the described top panel; One termination section of described crimping bar is taper, and can be pressed in the centre bore of described bearing pin.
2. pin-disconnection preventing device as claimed in claim 1 is characterized in that, described crimping bar is rotationally connected by bolt and described mount pad; Described bolt is fixed by nut and described mount pad.
3. pin-disconnection preventing device as claimed in claim 1 is characterized in that, described crimping bar is rotationally connected by rod member with holes and described mount pad; Described rod member with holes is fixed by slotted nut and cottor pin and described mount pad.
4. such as each described pin-disconnection preventing device of claims 1 to 3, it is characterized in that, be respectively equipped with the first hook corresponding to position and the second hook on described crimping bar and the described top panel, the two ends of described extension spring are mounted on respectively described the first hook, described the second hook.
5. such as each described pin-disconnection preventing device of claims 1 to 3, it is characterized in that described crimping bar is S shape or Z-shaped.
6. such as each described pin-disconnection preventing device of claims 1 to 3, it is characterized in that described mount pad and described top panel are by being welded and fixed.
7. an engineering machinery comprises such as each described pin-disconnection preventing device of claim 1 to 6.
8. engineering machinery as claimed in claim 7 is characterized in that, described engineering machinery is specially bulldozer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220482363.XU CN202745101U (en) | 2012-09-20 | 2012-09-20 | Engineering machine and anti-pin-falling device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220482363.XU CN202745101U (en) | 2012-09-20 | 2012-09-20 | Engineering machine and anti-pin-falling device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745101U true CN202745101U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220482363.XU Expired - Lifetime CN202745101U (en) | 2012-09-20 | 2012-09-20 | Engineering machine and anti-pin-falling device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499804A (en) * | 2017-08-15 | 2017-12-22 | 武汉汉利物料搬运机械有限公司 | Automatic hook lock bascule |
| CN110139963A (en) * | 2017-01-09 | 2019-08-16 | 卡特彼勒公司 | For fixed drill bit with anti-rotational system |
-
2012
- 2012-09-20 CN CN201220482363.XU patent/CN202745101U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110139963A (en) * | 2017-01-09 | 2019-08-16 | 卡特彼勒公司 | For fixed drill bit with anti-rotational system |
| US11149416B2 (en) | 2017-01-09 | 2021-10-19 | Caterpillar Inc. | System for securing bits against rotation |
| CN110139963B (en) * | 2017-01-09 | 2021-11-09 | 卡特彼勒公司 | System for securing a drill bit against rotation |
| US11746506B2 (en) | 2017-01-09 | 2023-09-05 | Caterpillar Inc. | System for securing bits against rotation |
| CN107499804A (en) * | 2017-08-15 | 2017-12-22 | 武汉汉利物料搬运机械有限公司 | Automatic hook lock bascule |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
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| CX01 | Expiry of patent term |