CN112127399A - Operation equipment and engineering machinery - Google Patents
Operation equipment and engineering machinery Download PDFInfo
- Publication number
- CN112127399A CN112127399A CN202011028799.7A CN202011028799A CN112127399A CN 112127399 A CN112127399 A CN 112127399A CN 202011028799 A CN202011028799 A CN 202011028799A CN 112127399 A CN112127399 A CN 112127399A
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- travel switch
- movable arm
- boom
- fixing seat
- trigger
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- 238000010276 construction Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims 2
- 238000011089 mechanical engineering Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 10
- 230000001960 triggered effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
- E02F3/437—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention provides operating equipment and engineering machinery, and belongs to the technical field of mechanical engineering. The work apparatus includes: the limiting device comprises a travel switch arranged on the vehicle body and a trigger assembly arranged on the movable arm, the travel switch is electrically connected with a driver of the movable arm, and the trigger assembly triggers the control operation of the travel switch on the driver according to the lifting height of the movable arm. The mechanical engineering comprises the working equipment. The application can improve the reliability of the limiting device for limiting the movable arm, and meanwhile, the structure of the limiting device can be effectively relieved from being damaged.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to operating equipment and engineering machinery.
Background
In performing the earthwork construction, in order to improve construction efficiency, construction is often performed using construction machines including an excavator for excavating earthwork or gravel and a loader for transferring the earthwork. Taking an excavator as an example, when the excavator excavates in a narrow space for operation, the lifting height of a movable arm of the excavator needs to be limited, otherwise, the movable arm is scraped with related facilities above the movable arm in the lifting process, and the operation safety is affected. For example, when an excavator is applied to an electric railway station operation, an obstacle such as a building or a cable is usually present above the excavator, a contact network is suspended, and the voltage of a power grid during power transmission reaches 25000V.
In the prior art, in order to avoid a safety accident when an excavator works in a narrow space, a vehicle body is generally provided with a limiting frame, the limiting frame is abutted against a movable arm and the lifting height of the movable arm is forcibly prevented, so that the height of the movable arm is limited, however, the mechanical limiting of the limiting frame is difficult to ensure the reliability of the limiting of the movable arm, and meanwhile, the limiting frame is easy to damage in the frequent abutting process of the limiting frame and the movable arm.
Disclosure of Invention
The invention aims to provide operating equipment and engineering machinery, and aims to solve the technical problems that in the prior art, a limiting device is poor in reliability of limiting a movable arm, and the structure is easy to damage.
The embodiment of the invention is realized by the following steps:
in one aspect of the embodiments of the present invention, there is provided an operation device including: the limiting device comprises a travel switch arranged on the vehicle body and a trigger assembly arranged on the movable arm, the travel switch is electrically connected with a driver of the movable arm, and the trigger assembly triggers the control operation of the travel switch on the driver according to the lifting height of the movable arm.
Optionally, the trigger assembly includes a first fixing seat fixedly disposed on the movable arm and an elastic trigger disposed on the first fixing seat, a mounting position of the elastic trigger corresponds to a limit height of the movable arm, and after the movable arm is lifted to the limit height, the elastic trigger pushes and triggers the travel switch.
Optionally, the elastic trigger is a spring plate, or the elastic trigger is a rubber pad.
Optionally, still be provided with the support on the automobile body, be provided with the bar hole on the support, be provided with the first through-hole that corresponds with the bar hole on the travel switch, first fastener passes first through-hole and bar hole in proper order and sets up travel switch on the support, through adjusting the relative position in first fastener and bar hole to change travel switch for the position that sets up of support.
Optionally, the operation equipment further comprises a protection assembly arranged on the vehicle body, the arrangement position of the protection assembly corresponds to the limit height of the movable arm, and after the movable arm is lifted to the limit height, the protection assembly abuts against the movable arm.
Optionally, the protection assembly comprises a second fixing seat and an adjusting piece, the second fixing seat is fixedly arranged on the vehicle body, a waist hole is formed in the second fixing seat, a second through hole corresponding to the waist hole is formed in the adjusting piece, the second fastener sequentially penetrates through the second through hole and the waist hole to fix the adjusting piece on the second fixing seat, and the setting position of the adjusting piece relative to the second fixing seat is changed by adjusting the relative position of the second fastener and the waist hole.
Optionally, the working equipment further comprises a fixed block arranged on the movable arm, and the protection assembly is abutted to the movable arm through the fixed block.
Optionally, the work equipment further comprises an alarm electrically connected with the travel switch.
Optionally, the travel switch comprises a housing disposed on the support, and a contactor disposed in the housing and an operating head connected to the contactor, the contactor is further electrically connected to the driver, and the elastic trigger triggers the contactor by pushing the operating head.
In another aspect of the embodiments of the present invention, there is provided an engineering machine including: a walking device, a swing mechanism and a plurality of any one of the above-mentioned operation equipment.
The embodiment of the invention has the beneficial effects that:
the working equipment provided by the embodiment of the invention comprises a vehicle body, a movable arm and a limiting device, wherein the movable arm is rotatably arranged on the vehicle body, the limiting device comprises a travel switch arranged on the vehicle body and a trigger component arranged on the movable arm, the setting position of the trigger component corresponds to the preset height for lifting the movable arm, the trigger component is driven to move towards the travel switch in the lifting process of the movable arm, when the movable arm is lifted to the preset height, the trigger component triggers the travel switch, in addition, the travel switch is electrically connected with a driver of the movable arm, when the travel switch is triggered, the travel switch transmits a trigger signal to the driver of the movable arm, the driver controls the lifting of the movable arm, namely, the trigger component triggers the control operation of the travel switch on the driver according to the lifting height of the movable arm so as to improve the reliability of the limiting device for limiting the movable arm, and, the lifting of the movable arm can be controlled in time through the driver, so that the long-time frequent abutting between the movable arm and the limiting device is avoided, and the structure of the limiting device is protected from being damaged.
The engineering machinery provided by the embodiment of the invention adopts the operation equipment, so that the reliability of the limiting device is improved and the safety of the engineering machinery in the operation process is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a first view of a working device according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of A in FIG. 1;
fig. 3 is a schematic structural diagram of a travel switch according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second view of the working device according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third perspective of a working device according to an embodiment of the present invention;
fig. 6 is a partially enlarged view of B in fig. 5.
Icon: 100-a working device; 110-a vehicle body; 120-a boom; 130-a limiting device; 131-a trigger component; 1311-first fixed seat; 1312-an elastic trigger; 132-a travel switch; 1321-a housing; 1322-an operating head; 1323-a contactor; 1324 — a first via; 133-a scaffold; 1331-strip holes; 134-a first fastener; 140-a protective component; 141-a second fixed seat; 142-an adjustment member; 143-second fastening means.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic structural diagram of a working apparatus 100 provided by the present invention, and fig. 2 is an enlarged partial schematic diagram of a in fig. 1, please refer to fig. 1 and fig. 2 in combination, an embodiment of the present invention provides a working apparatus 100, including: the lifting device comprises a vehicle body 110, a movable arm 120 rotatably arranged on the vehicle body 110 and a limiting device 130, wherein the limiting device 130 comprises a travel switch 132 arranged on the vehicle body 110 and a trigger assembly 131 arranged on the movable arm 120, the travel switch 132 is electrically connected with a driver of the movable arm 120, and the trigger assembly 131 triggers the control operation of the travel switch 132 on the driver according to the lifting height of the movable arm 120.
The travel switch 132 utilizes the collision of the mechanical moving parts to make the operating head 1322 act to realize the connection or disconnection of the control circuit, thereby achieving a certain control purpose.
Fig. 3 is a schematic structural diagram of the travel switch 132 according to an embodiment of the present invention, referring to fig. 3, optionally, the travel switch 132 includes a housing 1321 disposed on the bracket 133, a contact 1323 disposed in the housing 1321, and an operating head 1322 connected to the contact 1323, the contact 1323 is further electrically connected to the driver, and the elastic triggering element 1312 triggers the contact 1323 by pushing the operating head 1322.
The operating head 1322 is movable relative to the housing 1321, by pushing the operating head 1322 into contact with the contact 1323 to trigger the contact 1323, the triggered contact 1323 can control the operation of the actuator, i.e. the triggered contact 1323 can cause the actuator to control the boom 120 to stop lifting.
In this embodiment, the actuator 1323 is triggered by the trigger assembly 131 colliding with the operating head 1322 of the travel switch 132 when the boom 120 is lifted, and the contact 1323 can open or close the control circuit, and the actuator is controlled by the open (close) of the circuit, so that the actuator controls the boom 120 to stop lifting.
In addition, the driver may be manually driven or electrically driven, for example, the driver is manually driven, and optionally, the driver further includes a display screen electrically connected to the travel switch 132, the travel switch 132 can transmit a signal for triggering the contact 1323 to the display screen for displaying, and when the operator sees the signal for displaying that the travel switch 132 is triggered on the display screen, the driver is operated to stop the lifting of the moving arm 120.
Further alternatively, the actuator is electrically driven, the actuator is electrically connected to the stroke switch 132, and a signal generated by the stroke switch 132 is transmitted to the actuator, so that the actuator controls the boom 120 to stop lifting according to the received signal.
The set position of the trigger assembly 131 corresponds to the boom 120 height limit position, that is, when the boom 120 reaches a preset position, the trigger assembly 131 can trigger the travel switch 132, and the triggered travel switch 132 can control the operation of the actuator.
The working equipment 100 provided by the embodiment of the invention comprises a vehicle body 110, a movable arm 120 rotatably arranged on the vehicle body 110 and a limiting device 130, wherein the limiting device 130 comprises a travel switch 132 arranged on the vehicle body 110 and a trigger component 131 arranged on the movable arm 120, the setting position of the trigger component 131 corresponds to the preset height for lifting the movable arm 120, the trigger component 131 is driven to move towards the travel switch 132 during lifting of the movable arm 120, when the movable arm 120 is lifted to the preset height, the trigger component 131 triggers the travel switch 132, furthermore, the travel switch 132 is electrically connected with a driver of the movable arm 120, when the travel switch 132 is triggered, the travel switch 132 transmits a trigger signal to the driver of the movable arm 120, the driver controls lifting of the movable arm 120, that is, the trigger component 131 triggers the control operation of the travel switch 132 on the driver according to the lifting height of the movable arm 120, the reliability of the limiting device 130 for limiting the movable arm 120 is improved, and meanwhile, the lifting of the movable arm 120 can be controlled in time through the driver, so that the long-time frequent support of the movable arm 120 and the limiting device 130 is avoided, and the structure of the limiting device 130 is protected from being damaged.
Optionally, the trigger assembly 131 includes a first fixing seat 1311 fixedly disposed on the movable arm 120 and an elastic trigger 1312 disposed on the first fixing seat 1311, an installation position of the elastic trigger 1312 corresponds to a limit height of the movable arm 120, and after the movable arm 120 is lifted to the limit height, the elastic trigger 1312 pushes and triggers the travel switch 132.
The elastic triggering member 1312 is not particularly limited, and for example, a rubber pad, a spring plate, and the like, the elastic triggering member 1312 can trigger the travel switch 132 and protect the travel switch 132 during triggering of the travel switch 132, so as to prevent the travel switch 132 from being violently bumped, and the elastic triggering assembly 131 can eliminate the bumping on the travel switch 132 to a certain extent during triggering of the travel switch 132.
The installation position of the elastic triggering member 1312 corresponds to the limit height of the movable arm 120, and it should be understood that the elastic triggering member 1312 can trigger the travel switch 132 when the movable arm 120 is lifted to a preset height.
Optionally, the elastic triggering member 1312 is a spring plate, or the elastic triggering member 1312 is a rubber pad.
When the elastic triggering member 1312 is a spring plate, one end of the spring plate is fixed on the first fixing seat 1311, and the other end of the spring plate triggers the travel switch 132 when the movable arm 120 is lifted to a preset position, for example, the spring plate includes a connecting portion and a triggering portion, which are angularly arranged, wherein the connecting portion is fixedly connected with the first fixing seat 1311, the triggering portion is configured to abut against the operating head 1322 of the travel switch 132, and an included angle opening formed by the connecting portion and the triggering portion is arranged away from the vehicle body 110, and when the movable arm 120 is lifted to a preset height, the triggering portion abuts against the operating head 1322, and as the movable arm 120 continues to be lifted, an angle formed by the connecting portion and the triggering portion gradually decreases, and when the preset height is reached, the triggering portion triggers the contact 1323 by pushing the operating head 1322.
When the buffer is a rubber pad, one end of the rubber pad is fixedly connected to the first fixing seat 1311, and the other end of the rubber pad is used to abut against the operating head 1322 to trigger the travel switch 132.
In order to realize the limitation of the limiting device 130 to the movable arm 120 at different heights, optionally, in this embodiment, a bracket 133 is further disposed on the vehicle body 110, a strip-shaped hole 1331 is disposed on the bracket 133, a first through hole 1324 corresponding to the strip-shaped hole 1331 is disposed on the travel switch 132, the first fastening member 134 sequentially passes through the first through hole 1324 and the strip-shaped hole 1331 to dispose the travel switch 132 on the bracket 133, and the disposition position of the travel switch 132 relative to the bracket 133 is changed by adjusting the relative position of the first fastening member 134 and the strip-shaped hole 1331.
The bracket 133 is provided with a strip-shaped hole 1331, the length direction of the strip-shaped hole 1331 is not limited, as long as the position of the travel switch 132 relative to the bracket 133 can be adjusted by adjusting the position of the first fastening piece 134 in the strip-shaped hole 1331, and then the limiting height of the movable arm 120 can be adjusted.
For example, referring to fig. 2, the length direction of the strip-shaped hole 1331 disposed on the bracket 133 is parallel to the moving direction of the operating head 1322, for example, when the first fastener 134 is located at one end of the strip-shaped hole 1331 facing the movable arm 120, the limiting device 130 can limit the movable arm 120 to a first preset height, when the first fastener 134 is located at one end of the strip-shaped hole 1331 facing away from the movable arm 120, the limiting device 130 can limit the movable arm 120 to a second preset height, when the first fastener 134 is located at the middle of the strip-shaped hole 1331, the limiting device 130 can limit the movable arm 120 to a third preset height, and the like, and the purpose of limiting the movable arm 120 by the limiting device 130 to different preset heights is achieved by adjusting the first limiting member to be located at different movable arm positions of the.
Fig. 4 is a schematic structural diagram of a second perspective of the working apparatus 100 according to the embodiment of the present invention, fig. 5 is a schematic structural diagram of a third perspective of the working apparatus 100 according to the embodiment of the present invention, fig. 6 is a partially enlarged schematic diagram of fig. 5B, please refer to fig. 4-6 in combination, optionally, the working apparatus 100 further includes a protection assembly 140 disposed on the vehicle body 110, a position of the protection assembly 140 corresponds to a limit height of the boom 120, and after the boom 120 is raised to the limit height, the protection assembly 140 abuts against the boom 120.
When the travel switch 132 fails, in order to ensure that the boom 120 stops lifting continuously when reaching the preset height, it is necessary to set a forcible stop of the action of stopping the arm 120 from lifting, the set position of the protection component 140 corresponds to the limit height of the boom 120, and when the travel switch 132 fails, the protection component 140 can stop the boom 120 from lifting when lifting to the preset height, so as to achieve the purpose of protecting the working equipment 100.
Or, when the driver is a manual driver, when a signal that the travel switch 132 is triggered is received, the operator cannot immediately execute the driver to control the boom 120 to stop lifting, and in order to protect the travel switch 132 from being damaged, the protection component 140 is configured to stop lifting when the boom 120 is lifted to a preset height, so as to protect the travel switch 132.
As can be seen from the above, the limiting device 130 can adjust the preset height of the movable arm 120 within a certain range, the protection assembly 140 is an adjustment range corresponding to the limiting device 130, optionally, the protection assembly 140 includes a second fixing seat 141 and an adjusting part 142, the second fixing seat 141 is fixedly disposed on the vehicle body 110, a waist hole is disposed on the second fixing seat 141, a second through hole corresponding to the waist hole is disposed on the adjusting part 142, the second fastening part 143 sequentially penetrates through the second through hole and the waist hole to fix the adjusting part 142 on the second fixing seat 141, and the setting position of the adjusting part 142 relative to the second fixing seat 141 is changed by adjusting the relative position of the second fastening part 143 and the waist hole.
The length direction of the waist hole is not limited, as long as the position of the adjusting piece 142 relative to the second fixing seat 141 can be adjusted by adjusting the position of the second fastening piece 143 in the waist hole, and then the limiting height of the movable arm 120 can be adjusted.
The relative position of the second fixing seat 141 and the adjusting piece 142 is adjusted by adjusting the relative position of the second fastening piece 143 and the waist hole, and the preset height of the movable arm 120 is adjusted by changing the relative position of the second fixing seat 141 and the adjusting piece 142.
In order to prevent damage to the boom 120 during the abutment of the adjustment member 142 with the boom 120, the work apparatus 100 may further include a fixing block disposed on the boom 120, and the protection member 140 may be in abutment with the boom 120 through the fixing block.
The fixing block is fixedly arranged on the movable arm 120, and the adjusting part 142 abuts against the movable arm 120 through the fixing block, so that the adjusting part 142 indirectly contacts with the movable arm 120, and the direct contact between the adjusting part 142 and the movable arm 120 is avoided, and the movable arm 120 is damaged in the abutting process of the adjusting part 142 and the movable arm 120.
Optionally, work device 100 further includes an alarm electrically connected to travel switch 132.
When the travel switch 132 is triggered, the alarm sounds, alerting the operator that the boom 120 has reached the preset height of lift.
In another aspect of the embodiments of the present invention, there is provided an engineering machine including: a traveling device, a turning mechanism, and the above-described work equipment 100.
The engineering machine provided by the embodiment of the invention adopts the operation equipment 100, and the reliability of the limit of the limiting device 130 is improved and the safety of the engineering machine in the operation process is ensured by adopting the operation equipment 100.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A work apparatus, comprising: the limiting device comprises a travel switch arranged on the vehicle body and a trigger assembly arranged on the movable arm, the travel switch is electrically connected with a driver of the movable arm, and the trigger assembly triggers the travel switch to control the driver according to the lifting height of the movable arm.
2. The working device as claimed in claim 1, wherein the trigger assembly includes a first fixing seat fixedly disposed on the boom and an elastic trigger member disposed on the first fixing seat, an installation position of the elastic trigger member corresponds to a limit height of the boom, the boom is lifted to the limit height, and the elastic trigger member pushes and triggers the travel switch.
3. The work apparatus of claim 2, wherein said resilient trigger is a spring plate or said resilient trigger is a rubber pad.
4. The operating equipment as claimed in claim 2, wherein a bracket is further arranged on the vehicle body, a strip-shaped hole is arranged on the bracket, a first through hole corresponding to the strip-shaped hole is arranged on the travel switch, a first fastening piece sequentially penetrates through the first through hole and the strip-shaped hole to arrange the travel switch on the bracket, and the arrangement position of the travel switch relative to the bracket is changed by adjusting the relative position of the first fastening piece and the strip-shaped hole.
5. The work apparatus according to claim 1, further comprising a protection member provided on the vehicle body, wherein a position of the protection member corresponds to a limit height of the boom, the boom is raised to the limit height, and the protection member abuts against the boom.
6. The working equipment as claimed in claim 5, wherein the protection assembly comprises a second fixing seat and an adjusting piece, the second fixing seat is fixedly arranged on the vehicle body, a waist hole is formed in the second fixing seat, a second through hole corresponding to the waist hole is formed in the adjusting piece, a second fastening piece sequentially penetrates through the second through hole and the waist hole to fix the adjusting piece on the second fixing seat, and the arrangement position of the adjusting piece relative to the second fixing seat is changed by adjusting the relative position of the second fastening piece and the waist hole.
7. The work apparatus of claim 6, further comprising a fixed block disposed on the boom, the protection assembly abutting the boom through the fixed block.
8. The work apparatus of claim 1, further comprising an alarm electrically connected to said travel switch.
9. The working device as claimed in claim 4, wherein the stroke switch includes a housing provided on the carriage, and a contactor provided in the housing and an operating head connected to the contactor, the contactor being further electrically connected to the driver, the elastic activating member activating the contactor by pushing the operating head.
10. A construction machine comprising a traveling device, a turning mechanism, and the working equipment according to any one of claims 1 to 9, wherein the working equipment is provided on the traveling device via the turning mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011028799.7A CN112127399A (en) | 2020-09-27 | 2020-09-27 | Operation equipment and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011028799.7A CN112127399A (en) | 2020-09-27 | 2020-09-27 | Operation equipment and engineering machinery |
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| CN112127399A true CN112127399A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011028799.7A Pending CN112127399A (en) | 2020-09-27 | 2020-09-27 | Operation equipment and engineering machinery |
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| CN (1) | CN112127399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726695A (en) * | 2021-01-27 | 2021-04-30 | 徐州徐工矿业机械有限公司 | Electronic buffering and limiting device for engineering machinery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080049531A (en) * | 2006-11-30 | 2008-06-04 | 두산인프라코어 주식회사 | Device for controlling boom of excavator |
| CN202023501U (en) * | 2011-01-20 | 2011-11-02 | 徐州徐工基础工程机械有限公司 | Up and down limiting device for movable arms of rotary drilling rig |
| CN206941684U (en) * | 2017-07-21 | 2018-01-30 | 中铁二十三局集团第二工程有限公司 | A kind of height limiter applied to engineering machinery |
| CN108358078A (en) * | 2018-01-19 | 2018-08-03 | 中联重科股份有限公司 | Boom system, luffing range of cantilever support control system and its control method |
| CN110593346A (en) * | 2019-09-20 | 2019-12-20 | 三一重机有限公司 | Digging machine |
-
2020
- 2020-09-27 CN CN202011028799.7A patent/CN112127399A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080049531A (en) * | 2006-11-30 | 2008-06-04 | 두산인프라코어 주식회사 | Device for controlling boom of excavator |
| CN202023501U (en) * | 2011-01-20 | 2011-11-02 | 徐州徐工基础工程机械有限公司 | Up and down limiting device for movable arms of rotary drilling rig |
| CN206941684U (en) * | 2017-07-21 | 2018-01-30 | 中铁二十三局集团第二工程有限公司 | A kind of height limiter applied to engineering machinery |
| CN108358078A (en) * | 2018-01-19 | 2018-08-03 | 中联重科股份有限公司 | Boom system, luffing range of cantilever support control system and its control method |
| CN110593346A (en) * | 2019-09-20 | 2019-12-20 | 三一重机有限公司 | Digging machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726695A (en) * | 2021-01-27 | 2021-04-30 | 徐州徐工矿业机械有限公司 | Electronic buffering and limiting device for engineering machinery |
| CN112726695B (en) * | 2021-01-27 | 2022-08-12 | 徐州徐工矿业机械有限公司 | Electronic buffering and limiting device for engineering machinery |
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