CN211737714U - Novel electric shovel center shaft nut is fixed device - Google Patents
Novel electric shovel center shaft nut is fixed device Download PDFInfo
- Publication number
- CN211737714U CN211737714U CN202020175743.3U CN202020175743U CN211737714U CN 211737714 U CN211737714 U CN 211737714U CN 202020175743 U CN202020175743 U CN 202020175743U CN 211737714 U CN211737714 U CN 211737714U
- Authority
- CN
- China
- Prior art keywords
- nut
- positioning
- hole
- holes
- novel electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model discloses a novel electric shovel central axis nut fixing device, the power distribution box comprises a nut, center pin and cardboard, be equipped with the internal thread on the nut, be equipped with a plurality of screw through-holes and first positioning through-hole on this nut, screw through-hole and first positioning through-hole aperture are the same, the cardboard is circular-arcly, still be equipped with the convex key on this cardboard, still be equipped with a plurality of second positioning through-holes on the cardboard, the interval is the same with the interval that screw through-hole and first positioning through-hole formed between every second positioning through-hole, still be equipped with a plurality of locating levers and threaded rod on the nut, locating lever and first positioning through-hole and second positioning through-hole phase-match, threaded rod and screw through-hole phase-match, be equipped with on the center pin with the nut on the internal thread assorted external screw thread, a plurality of. The utility model provides a novel electric shovel center pin nut is fixed device has solved the problem that the difficulty was demolishd to prior art center pin nut.
Description
Technical Field
The utility model relates to a nut is fixed technical field, specifically is a novel electric shovel center shaft nut is fixed device.
Background
The axial clearance of the center shaft of the electric shovel is adjusted, firstly, a flat key of a nut of the center shaft and the center shaft is removed, the flat key is embedded in a key groove, the flat key is fixed on the nut by a screw rod, the screw rod and the center shaft are perpendicular to each other, and a low-voltage collecting ring is difficult to remove due to the fact that a low-voltage collecting ring is arranged right above the nut, and a low-voltage collecting ring assembly needs to be removed firstly. This method of removing the flat key has three problems: 1. the procedure is complicated and the time is long; 2. the flat keys are tightly matched, so that the dismounting is difficult; 3. the cooperation of multiple types of workers, electricians and welders is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of existence among the prior art, providing a novel electric shovel center pin nut is fixed device, solved prior art center pin nut and demolishd the problem of difficulty.
In order to realize the purpose, the utility model discloses a technical scheme be:
a novel electric shovel central shaft nut fixing device comprises a nut, a central shaft and a clamping plate, and is characterized in that an internal thread is arranged on the nut, a plurality of thread through holes and first positioning through holes are formed in the nut, the thread through holes and the first positioning through holes are uniformly distributed along the circumference of the nut, the thread through holes and the first positioning through holes are arranged in a cross mode, the diameter of each thread through hole is the same as that of each first positioning through hole, the clamping plate is arc-shaped, the inner diameter of the clamping plate is equal to that of the nut, a convex key is further arranged on the clamping plate, a plurality of second positioning through holes are further arranged on the clamping plate, the interval between every two second positioning through holes is the same as that formed by the thread through holes and the first positioning through holes, a plurality of positioning rods and threaded rods are further arranged on the nut, the positioning rods are matched with the first positioning through holes and the second positioning through holes, the central shaft is provided with an external thread matched with the internal thread on the nut, a plurality of key grooves are formed in one end face, close to the nut, of the central shaft, and the key grooves are matched with the convex keys.
Preferably, the nut is annular in shape.
Preferably, the first positioning through hole and the second positioning through hole have equal distance to the axis of the nut, and the first positioning through hole and the second positioning through hole have the same aperture.
Preferably, the nut upper positioning rod and the threaded rod are respectively provided with 2 positioning rods.
Preferably, the inner edge of the clamping plate is flush with the inner edge of the nut.
The utility model discloses possess beneficial effect: the utility model designs the first positioning through hole and the second positioning through hole, when in installation, the nut is screwed on the central shaft, then the convex key on the clamping plate is clamped in the key groove, and the positioning function of the clamping plate is formed by connecting the positioning rods on the corresponding first positioning through hole and the second positioning through hole; the clamping plate can be accurately positioned by designing the apertures of the first positioning through hole and the second positioning through hole to be equal; the utility model discloses can dismantle fixing device safely, simply fast, optimize center pin axial gap adjustment procedure, do not need the cooperation of multiple engineering, the practicality is strong.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. nut, 2, center pin, 3, cardboard, 4, internal thread, 5, screw through hole, 6, first positioning through hole, 7, convex key, 8, second positioning through hole, 9, locating lever, 10, threaded rod, 11, external screw thread, 12, keyway.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The novel electric shovel central shaft nut fixing device shown in figure 1 comprises a nut 1, a central shaft 2 and a clamping plate 3, and is characterized in that an internal thread 4 is arranged on the nut 1, a plurality of thread through holes 5 and first positioning through holes 6 are arranged on the nut 1, the thread through holes 5 and the first positioning through holes 6 are uniformly distributed along the circumference of the nut 1, the thread through holes 5 and the first positioning through holes 6 are mutually crossed and distributed, the diameter of each thread through hole 5 is the same as that of the first positioning through hole 6, the clamping plate 3 is arc-shaped, the inner diameter of the clamping plate 3 is equal to that of the nut 1, a convex key 7 is further arranged on the clamping plate 3, a plurality of second positioning through holes 8 are further arranged on the clamping plate 3, the interval between each second positioning through hole 8 is the same as that formed by the thread through holes 5 and the first positioning through holes 6, and a plurality of positioning rods 9 and 10 are further arranged on the nut 1, the locating lever 9 and first positioning through-hole 6 and second positioning through-hole 8 phase-match, threaded rod 10 and screw through-hole 5 phase-match, be equipped with on the center pin 2 with the nut 1 on 4 assorted external screw threads 11, a plurality of keyways 12 have been seted up to the terminal surface of nearly nut 1 on the center pin 2, keyway 12 and convex key 7 phase-match.
Preferably, the nut 1 is annular in shape. The axial distance from the first positioning through hole 6 to the nut 1 is equal to that from the second positioning through hole 8, and the aperture of the first positioning through hole 6 is equal to that of the second positioning through hole 8. The nut 1 is provided with 2 positioning rods 9 and 2 threaded rods 10 respectively. The inner edge of the clamping plate 3 is flush with the inner edge of the nut 1.
The utility model is realized by designing the nut 1, and the material and the external dimension of the nut 1 are the same as the dimension of the original central shaft nut; through designing first positioning through-hole 6 and second positioning through-hole 8, screw nut 1 on center pin 2 earlier when the installation, then make the 7 joints of convex key on cardboard 3 in corresponding keyway 12, through be connected with the positioning action that positioning rod 9 formed cardboard 3 on corresponding first positioning through-hole 6 and second positioning through-hole 8, then fix cardboard 3 on nut 1 and to center pin 2 formation radial positioning effect through threaded rod 10, during the dismantlement, only need with cardboard 3 dismantle can, this kind of design easy dismounting, practice thrift the human cost.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations may be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (5)
1. A novel electric shovel center shaft nut fixing device comprises a nut (1), a center shaft (2) and a clamping plate (3), and is characterized in that internal threads (4) are arranged on the nut (1), a plurality of threaded through holes (5) and first positioning through holes (6) are arranged on the nut (1), the threaded through holes (5) and the first positioning through holes (6) are uniformly distributed along the circumference of the nut (1), the threaded through holes (5) and the first positioning through holes (6) are arranged in a mutually crossed mode, the diameters of the threaded through holes (5) and the first positioning through holes (6) are the same, the clamping plate (3) is arc-shaped, the inner diameter of the clamping plate (3) is equal to that of the nut (1), a convex key (7) is further arranged on the clamping plate (3), a plurality of second positioning through holes (8) are further arranged on the clamping plate (3), and the interval between every two second positioning through holes (8) is the same as that the threaded through holes (5) and the first positioning through holes (6) form, still be equipped with a plurality of locating levers (9) and threaded rod (10) on nut (1), locating lever (9) and first positioning through-hole (6) and second positioning through-hole (8) phase-match, threaded rod (10) and screw thread through-hole (5) phase-match, be equipped with on center pin (2) with nut (1) on internal thread (4) assorted external screw thread (11), a plurality of keyways (12) have been seted up to the terminal surface of nearly nut (1) on center pin (2) partially, keyway (12) and convex key (7) phase-match.
2. The novel electric shovel central shaft nut fixing device is characterized in that the nut (1) is annular in shape.
3. The novel electric shovel center shaft nut fixing device is characterized in that the distance from the center point of the first positioning through hole (6) and the center point of the second positioning through hole (8) to the axis of the nut (1) is equal, and the diameters of the first positioning through hole (6) and the second positioning through hole (8) are the same.
4. The novel electric shovel central shaft nut fixing device is characterized in that 2 positioning rods (9) and 2 threaded rods (10) are respectively arranged on the nut (1).
5. The novel electric shovel center shaft nut fixing device is characterized in that the inner edge of the clamping plate (3) is flush with the inner edge of the nut (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020175743.3U CN211737714U (en) | 2020-02-17 | 2020-02-17 | Novel electric shovel center shaft nut is fixed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020175743.3U CN211737714U (en) | 2020-02-17 | 2020-02-17 | Novel electric shovel center shaft nut is fixed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211737714U true CN211737714U (en) | 2020-10-23 |
Family
ID=72878001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020175743.3U Active CN211737714U (en) | 2020-02-17 | 2020-02-17 | Novel electric shovel center shaft nut is fixed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211737714U (en) |
-
2020
- 2020-02-17 CN CN202020175743.3U patent/CN211737714U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102069207A (en) | Device capable of elastically clamping two ends of long hole | |
| CN210118390U (en) | Insulating elastic cylindrical pin assembly for coupler | |
| CN201794937U (en) | Coupling for motor and gearbox of electric vehicle | |
| CN211737714U (en) | Novel electric shovel center shaft nut is fixed device | |
| CN202344167U (en) | Welding tool used between motor spindle and rib plate | |
| CN216918633U (en) | Graphite snap ring and chuck structure | |
| WO2007032831A2 (en) | Flanged demountable pins and bushings and method of manufacture | |
| CN105252086B (en) | The planetary roll flute clamping device of wind power plant | |
| CN211729020U (en) | Tool for disassembling bearing | |
| CN212006896U (en) | Spliced main heater | |
| CN210189670U (en) | Numerical control roller lathe tailstock bearing dismouting device | |
| CN210099539U (en) | Detachable thin-wall shell axial clamping lathe fixture | |
| CN204003867U (en) | Communication base station fixed block | |
| CN203794362U (en) | Cable drum shaft hole protective sleeve | |
| CN214187006U (en) | Large-scale bearing dismounting device | |
| CN113714529B (en) | Multifunctional mandrel with adjustable range | |
| CN218575568U (en) | Hole turning tool for positioning ball of coupler | |
| CN209919779U (en) | Copper sheathing dismounting device | |
| CN216990502U (en) | A welding is equipped for novel impeller subassembly | |
| CN218873286U (en) | Cone pulley for wire drawing machine of cutting wire water tank | |
| CN211449417U (en) | Adapter sleeve assembly for bearing | |
| CN210232972U (en) | Hexagonal bolt box in stamping die assembly production line | |
| CN215370865U (en) | Belt pulley with auxiliary installation device | |
| CN211841805U (en) | Disassembling puller for high-voltage motor bearing | |
| CN212635018U (en) | A frock for vertical roll assembly dress card processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |