CN216156679U - Rotation locking mechanism of miniature excavator - Google Patents
Rotation locking mechanism of miniature excavator Download PDFInfo
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- CN216156679U CN216156679U CN202121955378.9U CN202121955378U CN216156679U CN 216156679 U CN216156679 U CN 216156679U CN 202121955378 U CN202121955378 U CN 202121955378U CN 216156679 U CN216156679 U CN 216156679U
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- excavator
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Abstract
The utility model discloses a rotation locking mechanism of a miniature excavator, wherein the miniature excavator comprises a cab, a rotary table and a chassis arranged below the rotary table; a chassis clamping groove is formed in the chassis; the turntable bottom plate is provided with a fixed sleeve which is positioned on the same axis with the chassis clamping groove, and the fixed sleeve is communicated with the turntable bottom plate; a lifting handle mechanism is arranged on the cab bottom plate, and one end of the lifting handle mechanism penetrates through the cab bottom plate and is rotatably connected to the bracket through a pin lock; and a locking mechanism is fixed on one side of the support far away from the handle mechanism, and one end of the locking mechanism penetrates through the fixed sleeve and the rotary table bottom plate and extends into the chassis clamping groove. The problem that the existing conventional locking mode is a parking braking function by using a rotary motor, but a mini excavator with the weight of less than 2 tons is limited by installation space, and only the rotary motor with small volume without the parking braking function can be installed is solved.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to a rotation locking mechanism of a miniature excavator.
Background
The small excavator is also called as a small excavating machine, the definition of the small excavator is different, and the small excavator is beneficial to small body posture and mainly becomes ideal equipment for the earthwork engineering in urban areas; the mini excavator has the advantages of small turning radius, small operation space, flexibility and the like, and is widely applied to the fields of garden construction, urban transformation and the like;
the Chinese utility model CN208815590U provides a rotary locking device of a mini-excavator, when the mini-excavator needs to be parked or transported, a guide sleeve of an upper part of the mini-excavator body can be rotated to be coaxially aligned with a pin hole, a pin shaft is inserted into the guide sleeve and the pin hole, so that the rotary locking of the upper part of the mini-excavator body and a lower part of the mini-excavator body is realized, and accidents are avoided;
although the device discloses a rotary locking device for a mini excavator, the locking effect is poor, and the locking structure is complex; at present, a conventional locking mode is a parking braking function of a rotary motor, but a mini excavator with the weight of less than 2 tons is limited by an installation space, and only the rotary motor with a small volume without the parking braking function can be installed;
therefore, a rotation locking mechanism of the mini excavator is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rotation locking mechanism of a miniature excavator, which aims to solve the technical problem.
In order to achieve the purpose, the utility model provides the following technical scheme:
a rotation locking mechanism of a miniature excavator comprises a cab, a rotary table and a chassis arranged below the rotary table; a chassis clamping groove is formed in the chassis; the turntable bottom plate is provided with a fixed sleeve which is positioned on the same axis with the chassis clamping groove, and the fixed sleeve is communicated with the turntable bottom plate; a lifting handle mechanism is arranged on the cab bottom plate, and one end of the lifting handle mechanism penetrates through the cab bottom plate and is rotatably connected to the bracket through a pin lock; and a locking mechanism is fixed on one side of the support far away from the handle mechanism, and one end of the locking mechanism penetrates through the fixed sleeve and the rotary table bottom plate and extends into the chassis clamping groove.
The device lifts and pulls the locking mechanism upwards through the handle mechanism, so that the locking mechanism is far away from the chassis clamping groove, and the rotary table and the chassis can rotate mutually; when locking is needed, the locking mechanism is inserted into the chassis clamping groove, so that the upper part of the excavator is connected with the chassis and cannot rotate relatively, and the locking function is realized; the safety of the excavator in the using process is effectively enhanced, the existing excavator can use the rotary motor without the parking braking function and with small size, and the design layout of the miniature excavator with limited installation space is met.
Preferably, the handle mechanism comprises a connecting arm rotatably connected in the bracket through the pin shaft, and a holding part is fixed at one end of the connecting arm.
The connecting arm is connected in the bracket through the lock pin, so that the holding part and the connecting part can rotate for 90 degrees around the lock pin, and the holding part is matched with the bottom plate of the driver seat.
Preferably, the holding part is an L-shaped handle; and a preformed hole matched with the holding part is formed in the cab bottom plate.
The L-shaped handle is arranged, so that the holding part of the L-shaped handle is provided with a tip, the holding part can be conveniently inserted into the preformed hole, and the unlocking function is realized.
Preferably, the support is an n-shaped support body, and the outer surface of the support is coated with a wear-resistant coating.
Through setting up wear-resistant coating, greatly prolonged the life of support, make its surface the condition of difficult emergence wearing and tearing.
Preferably, the locking mechanism comprises a rod body fixed in the support, a baffle is fixed at one end of the rod body, a connecting rod is fixed on the baffle, and a bolt is fixed at one end of the connecting rod.
The bolt inserts the chassis draw-in groove of fixing on the chassis, and baffle and fixed cover upper end contact link together excavator upper portion and chassis this moment, and both can't rotate relatively to realize the locking function.
Preferably, the distance between the cab floor and the turntable floor is L1The length of the connecting rod is L2The length of the bolt is L3And L is1>L2+L3。
The distance between the cab bottom plate and the rotary table bottom plate is greatly shortened, the distance is matched with the length of the connecting rod and the length of the bolt, the bolt is convenient to speak, and the bolt is completely far away from the chassis clamping groove, so that the rotation of equipment is facilitated.
Compared with the prior art, the utility model has the following beneficial effects:
1. compared with the prior art, the safety of the excavator in the using process can be enhanced, and major safety accidents are avoided; 2. compared with the prior art, the excavator can be used as a practical rotary motor without a parking function and with a small size by arranging the handle mechanism and the locking mechanism, so that the design layout of the miniature excavator with limited installation space is met, and the structure of the miniature excavator is more exquisite.
Drawings
FIG. 1 is a schematic view of the overall assembly of the present invention;
FIG. 2 is a schematic structural view of a rotary locking mechanism according to the present invention;
FIG. 3 is a schematic view of the locking mechanism of the present invention;
fig. 4 is a schematic view of unlocking the rotary locking mechanism according to the present invention.
In the figure: 1. a handle mechanism; 1-1, a holding part; 1-2, a connecting arm; 1-3, a pin shaft; 1-4, a bracket; 1-5, a baffle; 1-6, connecting rod; 1-7, a bolt; 2. a cab floor; 3. fixing a sleeve; 4. a turntable floor; 5. a clamping groove of the chassis.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example one
Referring to fig. 1, a rotation locking mechanism of a mini excavator includes a cab, a turntable, and a chassis disposed below the turntable; a chassis clamping groove 5 is arranged on the chassis; a fixed sleeve 3 which is positioned on the same axis with the chassis clamping groove 5 is arranged on the turntable bottom plate 4, and the fixed sleeve 3 is communicated with the turntable bottom plate 4; a lifting handle mechanism 1 is arranged on the cab bottom plate 2, and one end of the lifting handle mechanism 1 penetrates through the cab bottom plate 2 and is rotationally connected to the supports 1-4 through a pin lock; a locking mechanism is fixed in the supports 1-4 and on one side far away from the handle mechanism 1, and one end of the locking mechanism penetrates through the fixed sleeve 3 and the rotary table bottom plate 4 and extends into the chassis clamping groove 5.
The device controls the locking mechanism to move up and down through the handle mechanism 1 to realize unlocking and locking; referring to fig. 2, the grip portion 1-1 and the connecting arm 1-2 are integrated; the baffle 1-5, the connecting rod 1-6 and the bolt 1-7 are integrated, a rotary locking mechanism is formed between the baffle 1-5, the connecting rod 1-6 and the bolt 1-7 through the support 1-4 and the bolt 1-7, and the connecting arm 1-2 and the support 1-4 are connected together through the pin 1-3 and can rotate around the pin 1-3.
When locking is carried out, a rotary locking pin is operated to enable the state to be as shown in figure 3, a bolt 1-7 sequentially penetrates through a cab bottom plate 2, a fixed sleeve 3 and a rotary table bottom plate 4 and then is inserted into a chassis clamping groove 5 fixed on a chassis, a baffle plate 1-5 is contacted with the upper end of the fixed sleeve 3, at the moment, the upper part of the excavator and the chassis are connected through the rotary locking pin, the rotary locking pin and the chassis cannot rotate relatively, and the locking function is achieved;
when unlocking is carried out, the holding part 1-1 is grasped by hands to lift upwards, the whole rotary locking pin is driven to move upwards, until the pin shaft 1-3 rises above the bottom plate 2 of the cab, the holding part 1-1 and the connecting arm 1-2 are controlled to rotate for 90 degrees around the pin shaft 1-3, the tip end of the holding part 1-1 is inserted into a reserved hole of the bottom plate 2 of the cab, the state is shown in figure 4, at the moment, the pin 1-7 is completely separated from the clamping groove 5 of the chassis, unlocking is realized, and the rotary table and the chassis can rotate mutually.
Preferably, the handle mechanism 1 comprises a connecting arm 1-2 which is rotatably connected in the bracket 1-4 through a pin shaft 1-3, and a holding part 1-1 is fixed at one end of the connecting arm 1-2.
The connecting arm 1-2 is connected in the bracket 1-4 through the lock pin, so that the holding part 1-1 and the connecting ratio can rotate for 90 degrees around the lock pin, and the holding part 1-1 is matched with the bottom plate of the driver seat.
Preferably, the holding part 1-1 is an L-shaped handle; a preformed hole matched with the holding part 1-1 is arranged on the cab bottom plate 2.
The L-shaped handle is arranged, so that the holding part 1-1 of the L-shaped handle is provided with a pointed end, the holding part 1-1 can be conveniently inserted into the reserved hole, and the unlocking function is realized.
Preferably, the supports 1-4 are n-shaped supports, and the outer surfaces of the supports 1-4 are coated with wear-resistant coatings.
By arranging the wear-resistant coating, the service life of the support 1-4 is greatly prolonged, and the surface of the support is not easy to wear.
Preferably, the locking mechanism comprises a rod body fixed in the support 1-4, a baffle 1-5 is fixed at one end of the rod body, a connecting rod 1-6 is fixed on the baffle 1-5, and a bolt 1-7 is fixed at one end of the connecting rod 1-6.
The bolts 1-7 are inserted into a chassis clamping groove 5 fixed on the chassis, the baffle 1-5 is contacted with the upper end of the fixed sleeve 3, the upper part of the excavator and the chassis are connected together at the moment, and the upper part and the chassis cannot rotate relatively, so that the locking function is realized.
Preferably, the distance between the cab floor 2 and the turntable floor 4 is L1The length of the connecting rod 1-6 is L2The length of the bolt 1-7 is L3And L is1>L2+L3。
The distance between the cab bottom plate 2 and the rotary table bottom plate 4 is set to be larger than the length of the connecting rods 1-6 and the lengths of the bolts 1-7, so that the bolts 1-7 are conveniently and completely far away from the chassis clamping grooves 5, and the equipment is convenient to rotate.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A rotation locking mechanism of a miniature excavator comprises a cab, a rotary table and a chassis arranged below the rotary table; the method is characterized in that: a chassis clamping groove is formed in the chassis; the turntable bottom plate is provided with a fixed sleeve which is positioned on the same axis with the chassis clamping groove, and the fixed sleeve is communicated with the turntable bottom plate; a lifting handle mechanism is arranged on the cab bottom plate, and one end of the lifting handle mechanism penetrates through the cab bottom plate and is rotatably connected to the bracket through a pin lock; and a locking mechanism is fixed on one side of the support far away from the handle mechanism, and one end of the locking mechanism penetrates through the fixed sleeve and the rotary table bottom plate and extends into the chassis clamping groove.
2. The slewing lock mechanism of a mini-excavator according to claim 1, wherein: the handle mechanism comprises a connecting arm which is rotatably connected in the bracket through the pin shaft, and a holding part is fixed at one end of the connecting arm.
3. The slewing lock mechanism of a mini-excavator according to claim 2, wherein: the holding part is an L-shaped handle; and a preformed hole matched with the holding part is formed in the cab bottom plate.
4. The slewing lock mechanism of a mini-excavator according to claim 1, wherein: the support is an n-shaped support body, and the outer surface of the support is coated with a wear-resistant coating.
5. The slewing lock mechanism of a mini-excavator according to claim 1, wherein: the locking mechanism comprises a rod body fixed in the support, a baffle is fixed at one end of the rod body, a connecting rod is fixed on the baffle, and a bolt is fixed at one end of the connecting rod.
6. The slewing lock mechanism of a mini-excavator according to claim 5, wherein: the distance between the cab bottom plate and the rotary table bottom plate is L1The length of the connecting rod is L2The length of the bolt is L3And L is1>L2+L3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121955378.9U CN216156679U (en) | 2021-08-19 | 2021-08-19 | Rotation locking mechanism of miniature excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121955378.9U CN216156679U (en) | 2021-08-19 | 2021-08-19 | Rotation locking mechanism of miniature excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216156679U true CN216156679U (en) | 2022-04-01 |
Family
ID=80839020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121955378.9U Active CN216156679U (en) | 2021-08-19 | 2021-08-19 | Rotation locking mechanism of miniature excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216156679U (en) |
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2021
- 2021-08-19 CN CN202121955378.9U patent/CN216156679U/en active Active
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