CN215483238U - Energy absorption device, cab protection system, cab and engineering machinery - Google Patents
Energy absorption device, cab protection system, cab and engineering machinery Download PDFInfo
- Publication number
- CN215483238U CN215483238U CN202121001961.6U CN202121001961U CN215483238U CN 215483238 U CN215483238 U CN 215483238U CN 202121001961 U CN202121001961 U CN 202121001961U CN 215483238 U CN215483238 U CN 215483238U
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- supporting part
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 17
- 239000006096 absorbing agent Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of engineering machinery, and discloses an energy absorption device, a cab protection system, a cab and the engineering machinery. The energy absorption device is provided with the supporting part and the retraction structure which can drive the supporting part to retract when the pressure on the supporting part is greater than the preset value, so that the impact energy on the supporting part can be absorbed, the driver in driving is effectively protected, the follow-up performance of the protection plate is small, abnormal sound or noise generated by the protection plate is reduced, and the comfort level of the driver is improved.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to an energy absorption device, a cab protection system, a cab and engineering machinery.
Background
Excavators, also known as excavating machines, also known as excavators, are earth moving machines that excavate material above or below a load bearing surface with a bucket and load it into a transport vehicle or unload it to a stockyard. The top of the driver's cabin of excavator is through setting up protector to when receiving the impact or having the whereabouts of droping thing, the striking that reduces the driver's cabin and receive is destroyed, avoids driver's injury.
At present, some protective devices for the cab are directly fixed at the top of the cab through bolts, but the protective devices cannot absorb energy when being impacted greatly by fixing the protective devices in such a way, the impact energy can be directly transmitted to the cab, and a driver cannot be protected to the maximum extent; in addition, some cab guards are connected to the cab through elastic members, and although energy can be absorbed by elastic deformation when an impact is applied, the engineering machinery such as an excavator has large vibration in daily work, and the elastic connection devices cause the guards to vibrate along with the whole machine due to insufficient rigidity and generate noise or abnormal sound, thereby affecting the comfort of the driver.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an energy absorption device, which is provided with a supporting part and a retraction structure capable of driving the supporting part to retract when the pressure applied to the supporting part is greater than a preset value.
In order to achieve the above object, an aspect of the present invention provides an energy absorbing device, which includes a support having a support portion, and a retraction structure disposed on the support, wherein the retraction structure is configured to drive the support portion to retract when a pressure applied to the support portion is greater than a predetermined value.
Above-mentioned technical scheme, through setting up the structure that contracts on support piece, and will contract the structure and set up to driving the supporting part and retracting when the pressure that the supporting part received is greater than the default, thereby can support when the pressure that the supporting part received is not more than the default and treat support piece like the guard plate, and can contract under the drive of the structure that contracts when the pressure that the supporting part received is greater than the default, absorb the impact energy who receives, driver in when effectively protecting the driving, make the follow-up of guard plate less simultaneously, reduce produced noise of guard plate or abnormal sound, driver's comfort level has been improved.
Preferably, the support member includes a support case having a cavity, an end surface of the support case being formed as the support portion;
the retraction structure comprises a crumple concave part arranged on the wall of the support box body, and the crumple concave part can be crumpled when the pressure on the support part is larger than a preset value.
Preferably, the crush can is in a long shape, and the crush can extends along a direction perpendicular to the pressure direction of the support part; and/or
The support piece including set up in support the installation boss of box body, the installation boss is provided with the mounting hole that supplies the fastener to pass.
Preferably, the support member includes a support housing having a cavity, the support housing is provided with an opening, the support member includes a moving plate disposed in the cavity and a support rod disposed on the moving plate, the support rod passes through the opening, and a protruding end of the support rod is formed as the support portion;
the retraction structure comprises an extensible member capable of supporting the moving plate, the extensible member is assembled in the cavity, and the extensible member is set to retract towards the cavity when pressure on the supporting portion is larger than a preset value.
Preferably, the retraction structure comprises a pressure sensor arranged at the extension end of the support rod and a controller respectively connected to the pressure sensor and the telescopic member, wherein the controller is arranged to control the telescopic member to retract when the pressure sensor senses that the pressure applied to the extension end is greater than a preset value.
Preferably, the moving plate has an inner surface facing away from the opening;
the retraction structure comprises an elastic piece abutting against the inner surface, and the elastic piece can elastically support the moving plate in the retraction process of the telescopic piece.
Preferably, the elastic member includes a spring; and/or
The extensible member comprises an extensible rod.
A second aspect of the utility model provides a cab protection system comprising a fender arranged outside a cab and an energy absorption device according to the utility model arranged between the cab and the fender, wherein: the support portion supports the shielding plate. By arranging the energy absorption device provided by the utility model in the cab protection system, the impact energy can be absorbed when the protection plate is subjected to larger pressure, the personal safety of a driver is effectively ensured, the protection plate can be effectively supported when the protection plate is subjected to smaller pressure, the follow-up property and the generated noise of the protection plate are reduced, and the comfort level of the driver is improved.
The third aspect of the utility model provides a cab, and the outer side of the cab is provided with the cab protection system provided by the utility model. By arranging the cab protection system provided by the utility model on the outer side of the cab, the safety of the cab is improved, and meanwhile, the comfort of the cab is also improved.
A fourth aspect of the present invention provides a construction machine in which the cab provided by the present invention is provided. By arranging the cab 40 provided by the utility model in the engineering machinery, the safety and the comfort of operators of the engineering machinery can be ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of a preferred embodiment of the cab of the present invention in which a preferred embodiment of the cab protection system of the present invention is provided;
FIG. 2 is a partial schematic structural view of the cab of FIG. 1, showing an energy absorber of a preferred embodiment of the utility model;
FIG. 3 is a schematic perspective view of the energy absorber device shown in FIG. 2;
FIG. 4 is a schematic cross-sectional view of an energy absorber according to another preferred embodiment of the present invention.
Description of the reference numerals
10-an energy absorbing device; 12-a support; 120-support the cartridge; 121-a support housing; 122-mounting bosses; 123-chamber; 124-mounting holes; 125-moving plate; 127-a support bar; 140-a crush recess; 141-a telescoping member; 143-a pressure sensor; 145-an elastic member; 20-a cab guard system; 22-protective plate; 40-cab.
Detailed Description
In the present invention, the use of directional terms such as "upper, lower, left and right" in the absence of a contrary explanation generally means that the directions shown in the drawings and the practical application are considered to be the same, and "inner and outer" mean the inner and outer of the outline of the component.
The present invention provides an energy absorber, the energy absorber 10 including a support 12, the support 12 having a support portion, the support portion being capable of supporting a fender 22, wherein the protection plate 22 can be disposed outside an object to be protected, such as a cab, to reduce an impact force applied to the cab, and it can be further understood that the support member 12 can be assembled between the cab and the protection plate 22, and the energy absorption device 10 further includes a retraction structure disposed on the support member 12, the retraction structure is configured to drive the support member to retract when a pressure applied to the support member is greater than a predetermined value, it should be noted that, when the pressure applied to the support portion is not greater than the preset value, the support portion of the support member 12 performs a supporting operation, such as rigid support of the protection plate 22, when the pressure on the protection plate 22 is greater than the predetermined value, the retraction structure can perform a corresponding retraction operation to drive the support portion to retract. Through set up the structure of retracting on support piece 12, and set up the structure of retracting and to drive the supporting part and retract when the pressure that the supporting part received is greater than the default, thereby can support when the pressure that the supporting part received is not greater than the default and treat support piece like protection plate 22, and can retract under the drive of the structure of retracting when the pressure that the supporting part received is greater than the default, absorb the impact energy who receives, driver in when effectively protecting the driving, make protection plate 22's follow-up less simultaneously, reduce noise or abnormal sound that protection plate 22 produced, driver's comfort level has been improved. The preset value can be set according to the actual working condition, and is not particularly specified here.
As shown in fig. 2 and 3, the supporting member 12 may include a supporting case 120 having a cavity, an end surface of the supporting case 120 is formed as a supporting portion, a top end of the supporting case 120 is formed as a supporting portion, and a bottom end of the supporting case 120 is supported on a sidewall of the cab, as viewed in the illustrated orientation; the retraction structure may include a collapsing recess 140 disposed on a wall of the support case 120, and it can be understood that the collapsing recess 140 is recessed toward the cavity, and the collapsing recess 140 may be configured to collapse when the pressure applied to the support portion is greater than a predetermined value, so that the support case 120 is deformed to collapse, thereby the support case 120 is integrally recessed to drive the support portion to retract, and the impact energy is absorbed. And when the pressure is not greater than the preset value, the support box 120 can rigidly support the protection plate 22.
In order to further improve the effect, when the pressure applied to the supporting box 120 is greater than the predetermined value, the collapsing recesses 140 are in a strip shape, and the collapsing recesses 140 can extend in a direction perpendicular to the pressure applied to the supporting portion, and as shown in the figure, the collapsing recesses 140 can extend transversely.
As shown in fig. 1, 2 and 3, a mounting boss 122 may be disposed on the supporting box 120, the mounting boss 122 may be annular, the mounting boss 122 may be disposed around the supporting box 120, and the mounting boss 122 may be provided with a mounting hole 124 for a fastening member 16, such as a bolt, to pass through, so that the supporting box 120 may be conveniently mounted and fixed. For example, the mounting bosses 122 may be secured to the fender 22 or the top wall of the cab by fasteners 16.
As shown in fig. 4, the support member 12 may include a support housing 121 having a cavity 123, the support housing 121 may be provided with an opening 129, the opening 129 may be provided at a top surface of the support housing 121 facing away from a mounting surface of the support case 121 when viewed from the orientation shown in fig. 4, the support member 12 may include a moving plate 125 disposed in the cavity 123 and a support rod 127 disposed at the moving plate 125, the support rod 127 may pass through the opening 129, and a protruding end of the support rod 127 may be formed as a support portion. The protruding ends of the support bars 127 may support the fender 22 when the support member 12 is mounted on the top of the cab.
The retracting structure may include a telescopic member 141 capable of supporting the moving plate 125, the telescopic member 141 may be assembled in the chamber 123, the telescopic member 141 may be configured to be retracted toward the chamber 123 when the supporting portion is subjected to a pressure greater than a preset value, and the telescopic member 141 supports the moving plate 125 when the supporting portion is subjected to a pressure not greater than the preset value, so that the protruding end of the supporting rod 127 supports the shielding plate 22. The structure of the telescopic member 141 is not particularly limited, as long as the telescopic member 141 can be retracted into the chamber 123 when the pressure applied to the supporting portion is greater than the predetermined value, for example, the telescopic member 141 may include a telescopic rod. It should be noted that the moving plate 125 can be stopped at the opening 129.
In order to effectively control the retraction of the telescopic member 141, a pressure sensor 143 may be disposed at the extending end of the supporting rod 127, and a controller may be disposed, where the controller is respectively connected to the pressure sensor 143 and the telescopic member 141, and the controller may be configured to control the telescopic member 141 to retract when the pressure sensor 143 senses that the pressure applied to the extending end is greater than a predetermined value. Through setting up pressure sensor 143 and controller, not only realized automatic control for the action of contracting of extensible member 141 takes place in time moreover, has further improved the security.
The moving plate 125 has an inner surface facing away from the opening 129, and an elastic member 145 may be disposed to abut against the inner surface, specifically, two ends of the elastic member 145 may abut against the inner surface of the moving plate 125 and a top wall of the cab, respectively, and the elastic member 145 may elastically support the moving plate 125 in a process of retracting the extensible member 141, thereby playing a role of buffering to enable the extensible member 141 to smoothly perform a retracting action while ensuring absorption of impact energy. Wherein the elastic member 145 may include a spring. To further enhance the cushioning effect, a plurality of elastic members 145 may be provided, and the plurality of elastic members 145 may be spaced apart along the circumferential direction of the extensible member 141.
The present invention also provides a cab protection system, as shown in fig. 1, the cab protection system 20 including a fender 22 disposed on an outer side of a cab 40, wherein: guard plate 22 may be disposed above cab 40, or guard plate 22 may be disposed to the side of cab 40, and cab protection system 20 includes energy absorber device 10 disposed between cab 40 and guard plate 22, wherein: the energy absorption device 10 is the energy absorption device 10 provided by the utility model, and a support part of the energy absorption device 10 supports a protection plate 22. By arranging the energy absorption device 10 provided by the utility model in the cab protection system, the impact energy can be absorbed when the protection plate 22 is subjected to larger pressure, the personal safety of a driver is effectively ensured, the protection plate 22 can be effectively supported when the protection plate 22 is subjected to smaller pressure, the follow-up property of the protection plate 22 and the generated noise or abnormal sound are reduced, and the comfort level of the driver is improved.
The utility model also provides a cab, and the outer side of the cab 40 is provided with the cab protection system 20 provided by the utility model. By arranging the cab protection system 20 provided by the utility model outside the cab 40, not only is the safety of the cab 40 improved, but also the comfort of the cab 40 is improved.
The utility model also provides engineering machinery, and the engineering machinery is provided with the cab 40 provided by the utility model. By arranging the cab 40 provided by the utility model in the engineering machinery, the safety and the comfort of operators of the engineering machinery can be ensured. The engineering machinery can comprise an excavator and a rotary drilling rig.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the utility model, numerous simple modifications can be made to the technical solution of the utility model, including combinations of the individual specific technical features in any suitable way. The utility model is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. The energy absorption device is characterized in that the energy absorption device (10) comprises a support part (12), the support part (12) is provided with a supporting part, the energy absorption device (10) further comprises a retraction structure arranged on the support part (12), and the retraction structure is arranged to drive the supporting part to retract when the pressure on the supporting part is larger than a preset value.
2. Energy-absorbing device according to claim 1, characterized in that the support (12) comprises a support box (120) with a cavity, the end face of the support box (120) being formed as the support;
the retraction structure comprises a collapse concave part (140) arranged on the wall of the support box body (120), and the collapse concave part (140) can collapse when the pressure on the support part is larger than a preset value.
3. An energy-absorbing device according to claim 2, characterized in that the crush lobe (140) is elongate, the crush lobe (140) extending in a direction perpendicular to the direction of pressure experienced by the support; and/or
The support piece (12) comprises a mounting boss (122) arranged on the support box body (120), and the mounting boss (122) is provided with a mounting hole (124) for a fastener (16) to pass through.
4. An energy-absorbing device according to claim 1, characterized in that the support (12) comprises a support housing (121) having a cavity (123), the support housing (121) being provided with an opening (129), the support (12) comprising a moving plate (125) arranged in the cavity (123) and a support bar (127) arranged in the moving plate (125), the support bar (127) passing out of the opening and an extension end of the support bar (127) forming the support;
the retraction structure comprises a telescopic piece (141) capable of supporting the moving plate (125), the telescopic piece (141) is assembled in the cavity (123), and the telescopic piece (141) is set to be capable of retracting towards the cavity (123) when the pressure on the supporting part is greater than a preset value.
5. An energy absorber according to claim 4, wherein the retraction mechanism comprises a pressure sensor (143) arranged at the protruding end of the support rod (127) and a controller connected to the pressure sensor (143) and the extension member (141), respectively, the controller being arranged to control the extension member (141) to retract when the pressure sensor (143) senses that the protruding end is subjected to a pressure greater than a predetermined value.
6. An energy-absorbing device according to claim 4 or 5, characterized in that said moving plate (125) has an inner surface facing away from said opening;
the retraction structure comprises an elastic member (145) abutting against the inner surface, and the elastic member (145) can elastically support the moving plate (125) during the retraction process of the telescopic member (141).
7. An energy-absorbing device according to claim 6, characterized in that said elastic member (145) comprises a spring; and/or
The telescopic member (141) comprises a telescopic rod.
8. Cab guard system, characterized in that the cab guard system (20) comprises a fender (22) arranged outside a cab (40) and an energy absorber device (10) according to any one of claims 1 to 7 arranged between the cab (40) and the fender (22), wherein: the support portion supports the shielding plate (22).
9. Cab, characterized in that the outside of the cab (40) is provided with a cab protection system (20) according to claim 8.
10. A working machine, characterized in that a cab (40) according to claim 9 is arranged in the working machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121001961.6U CN215483238U (en) | 2021-05-11 | 2021-05-11 | Energy absorption device, cab protection system, cab and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121001961.6U CN215483238U (en) | 2021-05-11 | 2021-05-11 | Energy absorption device, cab protection system, cab and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215483238U true CN215483238U (en) | 2022-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121001961.6U Active CN215483238U (en) | 2021-05-11 | 2021-05-11 | Energy absorption device, cab protection system, cab and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215483238U (en) |
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2021
- 2021-05-11 CN CN202121001961.6U patent/CN215483238U/en active Active
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| GR01 | Patent grant | ||
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