CN215567753U - Can replace gear teeth's gear - Google Patents
Can replace gear teeth's gear Download PDFInfo
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- CN215567753U CN215567753U CN202121193504.1U CN202121193504U CN215567753U CN 215567753 U CN215567753 U CN 215567753U CN 202121193504 U CN202121193504 U CN 202121193504U CN 215567753 U CN215567753 U CN 215567753U
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Abstract
The utility model discloses a gear with replaceable gear teeth, which comprises a cross-shaped plate, four arc-shaped gear units and four split bolts. The gear with replaceable gear teeth is inserted on the four branch inserting plates by utilizing the four arc-shaped gear units, so that the arc-shaped gear units are convenient to disassemble and assemble, and the four arc-shaped gear units are positioned at the same time; the fixed side lugs are installed by utilizing the split bolts, so that the four arc-shaped gear units can be detachably installed, the corresponding arc-shaped gear units can be conveniently replaced when individual gear teeth are worn and broken, and the cost is reduced; the gear is conveniently arranged on the transmission shaft by utilizing the central shaft hole and the key groove.
Description
Technical Field
The utility model relates to a gear, in particular to a gear with replaceable gear teeth.
Background
Gears are the most important transmission workpieces, and because of their stability in operation, they are used in transmission mechanisms in various industries. During gear transmission, rolling can be generated between tooth surfaces and between the tooth surfaces and tooth roots, the damage causes the gear to lose accurate transmission, the problem can be solved only by replacing the whole gear, and the maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: a gear capable of replacing only a damaged portion when a gear tooth is damaged is provided.
The technical scheme is as follows: the gear with replaceable gear teeth comprises a cross-shaped plate, four arc-shaped gear units and four split bolts;
the four arc gear units are respectively inserted on the four branch inserting plates of the cross-shaped plate and form a circular ring; a plurality of gear teeth are fixed on the outer circumferential surface of the circular ring at intervals, and two fixing side lugs for clamping the cross-shaped plate are arranged on the inner circumferential surface of the circular ring and positioned in the middle of each arc-shaped gear unit; the four split bolts respectively fix the two fixed side lugs on each arc-shaped gear unit on the corresponding branch insertion plates; a central shaft hole for mounting the rotating shaft is arranged at the central position of the cross-shaped plate; two key grooves for mounting keys are arranged on the hole wall of the central shaft hole.
Furthermore, a rectangular jack is arranged on the inner arc surface of each arc gear unit; the four branch inserting plates of the cross-shaped plate are respectively inserted into the four rectangular inserting holes.
Furthermore, each branch inserting plate of the cross-shaped plate is provided with two inserting grooves; and the hole wall of each rectangular jack is provided with two raised strips inserted in the slots.
Furthermore, a positioning blind hole is respectively arranged on the four branch inserting plates of the cross-shaped plate, and a bolt hole is coaxially arranged at the bottom of the positioning blind hole; after the end part of the split bolt penetrates through the positioning blind hole, the bolt hole and the two fixed side lugs at the corresponding positions, the split bolt and a split nut form split installation, a pin rod section is arranged on the split bolt, the diameter of the pin rod section is larger than the diameter of a screw rod of the split bolt, and the pin rod section is tightly matched with the positioning blind hole.
Furthermore, the joint of the pin rod section and the screw rod section is provided with a conical contraction section; a positioning pin hole communicated with the central shaft hole is formed in the hole wall of the positioning blind hole; a positioning pin is arranged in the positioning pin hole in a sliding mode, one end of the positioning pin extends into the central shaft hole, and the other end of the positioning pin extends into the positioning blind hole; the conical contraction section is pressed on the end part of the positioning pin extending into the positioning blind hole.
Furthermore, the end face of the positioning pin extending into the positioning blind hole is arranged to be an arc face attached to the conical contraction section, and the conical contraction section is pressed on the arc face of the positioning pin.
Furthermore, two opposite ends of the two arc-shaped gear units are respectively provided with a butt joint jack; two ends of the other two opposite arc-shaped gear units are respectively provided with a butt joint plug, and each butt joint plug is inserted in the adjacent butt joint jacks.
Compared with the prior art, the utility model has the beneficial effects that: the four arc-shaped gear units are inserted into the four branch insertion plates, so that the arc-shaped gear units are convenient to disassemble and assemble, and the four arc-shaped gear units are positioned at the same time; the fixed side lugs are installed by utilizing the split bolts, so that the four arc-shaped gear units can be detachably installed, the corresponding arc-shaped gear units can be conveniently replaced when individual gear teeth are worn and broken, and the cost is reduced; the gear is conveniently arranged on the transmission shaft by utilizing the central shaft hole and the key groove.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a detail view of the cross plate of the present invention;
FIG. 3 is an assembly schematic of the arcuate gear unit of the present invention;
fig. 4 is a part view of the split bolt of the present invention.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example 1:
as shown in fig. 1 to 4, the present invention provides a gear with replaceable teeth, comprising: the cross-shaped plate 1, four arc-shaped gear units 5 and four split bolts 17;
the four arc-shaped gear units 5 are respectively inserted on the four branch inserting plates of the cross-shaped plate 1, and the four arc-shaped gear units 5 form a circular ring; a plurality of gear teeth 6 are fixed on the outer circumferential surface of the circular ring at intervals, and two fixed side lugs 3 for clamping the cross-shaped plate 1 are arranged on the inner circumferential surface of the circular ring and positioned in the middle of each arc-shaped gear unit 5; the four split bolts 17 respectively fix the two fixed side lugs 3 on each arc-shaped gear unit 5 on the corresponding branch insertion plates; a central shaft hole 2 for installing a rotating shaft is arranged at the central position of the cross-shaped plate 1; two key grooves 10 for mounting keys are provided on the hole wall of the central shaft hole 2.
The four arc-shaped gear units 5 are inserted into the four branch insertion plates, so that the arc-shaped gear units 5 are convenient to disassemble and assemble, and the four arc-shaped gear units 5 are positioned at the same time; the fixed side lugs 3 are installed by utilizing the split bolts 17, so that the four arc-shaped gear units 5 can be detachably installed, the corresponding arc-shaped gear units 5 can be conveniently replaced when the individual gear teeth 6 are worn and broken, and the cost is reduced; the use of the central shaft bore 2 and the key way 10 facilitates the mounting of the gear on the drive shaft.
Furthermore, a rectangular jack 13 is arranged on the inner circular arc surface of each arc gear unit 5; the four branch insertion plates of the cross-shaped plate 1 are respectively inserted into the four rectangular insertion holes 13.
The rectangular jack 13 is used for facilitating the insertion of the branch insertion plate on the arc-shaped gear unit 5.
Furthermore, each branch inserting plate is provided with two slots 7; the hole wall of each rectangular insertion hole 13 is provided with two convex strips 14 inserted in the insertion grooves 7.
Utilize slot 7 and sand grip 14's cooperation, fix a position arc gear unit 5, prevent that arc gear unit 5 from rocking on cross shaped plate 1 and influencing gear drive.
Furthermore, a positioning blind hole 9 is respectively arranged on the four branch inserting plates of the cross-shaped plate 1, and a bolt hole 8 is coaxially arranged at the bottom of the positioning blind hole 9; after the end part of the split bolt 17 penetrates through the positioning blind hole 9, the bolt hole 8 and the two fixed side lugs 3 at the corresponding positions, the split bolt and a split nut 16 form split installation, a pin rod section 19 is arranged on the split bolt 17, the diameter of the pin rod section 19 is larger than that of a screw rod of the split bolt 17, and the pin rod section 19 is tightly matched with the positioning blind hole 9.
The pin rod section 19 is tightly matched with the positioning blind hole 9, so that the fixing stability of the fixed side lug 3 is ensured.
Further, the connecting part of the pin rod section 19 and the screw rod of the split bolt 17 is provided with a conical contraction section 18; a positioning pin hole communicated with the central shaft hole 2 is formed in the hole wall of the positioning blind hole 9; a positioning pin 11 is arranged in the positioning pin hole in a sliding manner, one end of the positioning pin 11 extends into the central shaft hole 2, and the other end of the positioning pin 11 extends into the positioning blind hole 9; the conical constriction 18 presses on the end of the positioning pin 11 that projects into the blind positioning hole 9. Utilize toper shrink section 18 extrusion locating pin 11's one end, extrude the transmission shaft with the other end of locating pin 11, strengthened the installation intensity of gear, prevent that the gear from rocking on the transmission shaft.
Furthermore, the end face of the positioning pin 11 extending into the positioning blind hole 9 is set to be an arc face attached to the conical contraction section 18, and the conical contraction section 18 is pressed on the arc face of the positioning pin 11. The conical contraction section 18 is attached to the arc surface of the positioning pin 11, so that the contact area is increased, and the pressing stability is ensured.
Furthermore, two opposite ends of the two arc-shaped gear units 5 are respectively provided with a butt joint jack 12; two opposite arc-shaped gear units 5 are provided with a butt plug 15 at two ends, and each butt plug 15 is inserted into the adjacent butt jack 12.
By means of the matching between the butt plug 15 and the butt jack 12, the matching reliability between two adjacent arc-shaped gear units 5 is ensured.
When the gear with replaceable gear teeth is installed and used, the cross-shaped plate 1 is firstly installed on a transmission shaft, the four arc-shaped gear units 5 are inserted into the four branch inserting plates, the butt plug 15 is inserted into the corresponding butt inserting hole 12, then the split bolt 17 is installed, the conical contraction section 18 extrudes the arc surface of the positioning pin 11, the other end of the positioning pin 11 is inserted into the transmission shaft, and finally the split nut 16 is screwed on.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (7)
1. A gear capable of replacing gear teeth, comprising: comprises a cross-shaped plate (1), four arc-shaped gear units (5) and four split bolts (17);
the four arc-shaped gear units (5) are respectively inserted on the four branch inserting plates of the cross-shaped plate (1), and the four arc-shaped gear units (5) form a circular ring; a plurality of gear teeth (6) are fixed on the outer circumferential surface of the circular ring at intervals, and two fixed side lugs (3) used for clamping the cross-shaped plate (1) are arranged on the inner circumferential surface of the circular ring and positioned in the middle of each arc-shaped gear unit (5); the four split bolts (17) respectively fix the two fixed side lugs (3) on each arc-shaped gear unit (5) on the corresponding branch insertion plates; a central shaft hole (2) for mounting a rotating shaft is arranged at the central position of the cross-shaped plate (1); two key grooves (10) for mounting keys are arranged on the hole wall of the central shaft hole (2).
2. The replaceable tooth gear of claim 1, wherein: a rectangular jack (13) is arranged on the inner circular arc surface of each arc gear unit (5); the four branch inserting plates of the cross-shaped plate (1) are respectively inserted into the four rectangular inserting holes (13).
3. The replaceable tooth gear of claim 2, wherein: each branch inserting plate of the cross-shaped plate (1) is provided with two inserting grooves (7); the hole wall of each rectangular jack (13) is provided with two convex strips (14) inserted in the slots (7).
4. The replaceable tooth gear of claim 1, wherein: a positioning blind hole (9) is respectively arranged on the four branch inserting plates of the cross-shaped plate (1), and a bolt hole (8) is coaxially arranged at the bottom of the positioning blind hole (9); the end part of the split bolt (17) penetrates through the positioning blind hole (9), the bolt hole (8) and the two fixed side lugs (3) at the corresponding positions, and then is split-mounted with a split nut (16); a pin rod section (19) is arranged on the split bolt (17), and the diameter of the pin rod section (19) is larger than the diameter of a screw rod of the split bolt (17); the pin rod section (19) is tightly matched with the positioning blind hole (9).
5. The replaceable tooth gear of claim 4, wherein: the connecting part of the pin rod section (19) and the screw rod of the split bolt (17) is provided with a conical contraction section (18); a positioning pin hole communicated with the central shaft hole (2) is formed in the hole wall of the positioning blind hole (9); a positioning pin (11) is arranged in the positioning pin hole in a sliding manner, one end of the positioning pin (11) extends into the central shaft hole (2), and the other end of the positioning pin (11) extends into the positioning blind hole (9); the conical contraction section (18) presses on the end part of the positioning pin (11) extending into the positioning blind hole (9).
6. The replaceable tooth gear of claim 5, wherein: the end face of the positioning pin (11) extending into the positioning blind hole (9) is arranged to be an arc face attached to the conical contraction section (18), and the conical contraction section (18) is pressed on the arc face of the positioning pin (11).
7. The replaceable tooth gear of claim 1, wherein: two ends of two non-adjacent arc gear units (5) are respectively provided with a butt joint jack (12); two ends of the other two non-adjacent arc gear units (5) are respectively provided with a butt joint plug (15), and each butt joint plug (15) is inserted in the adjacent butt joint jack (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121193504.1U CN215567753U (en) | 2021-05-31 | 2021-05-31 | Can replace gear teeth's gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121193504.1U CN215567753U (en) | 2021-05-31 | 2021-05-31 | Can replace gear teeth's gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215567753U true CN215567753U (en) | 2022-01-18 |
Family
ID=79865035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121193504.1U Active CN215567753U (en) | 2021-05-31 | 2021-05-31 | Can replace gear teeth's gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215567753U (en) |
-
2021
- 2021-05-31 CN CN202121193504.1U patent/CN215567753U/en active Active
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