CN220337371U - Balance weight for crankshaft - Google Patents
Balance weight for crankshaft Download PDFInfo
- Publication number
- CN220337371U CN220337371U CN202321933737.XU CN202321933737U CN220337371U CN 220337371 U CN220337371 U CN 220337371U CN 202321933737 U CN202321933737 U CN 202321933737U CN 220337371 U CN220337371 U CN 220337371U
- Authority
- CN
- China
- Prior art keywords
- block
- balance
- fixing
- crankshaft
- fixedly connected
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- 238000005096 rolling process Methods 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a balance weight for a crankshaft, which relates to the technical field of balance weights, and aims to solve the problem that the balance weight cannot be used when being damaged due to the fact that the balance weight is damaged during use, but the balance weight and a crank are of an integral structure, the mass cannot be changed, the balance weight cannot be detached and replaced, the integral replacement is needed, the replacement cost is high, the balance weight comprises a crankshaft body and a first balance weight, the top end of the crankshaft body is fixedly connected with a balance lug, one side of the first balance weight, which is far away from the balance lug, is provided with a fixing groove, one side of the first balance weight, which is close to the fixing groove, is fixedly connected with a second balance weight, one side of the second balance weight is fixedly connected with a fixing arc block, and the middle of the fixing arc block is provided with the fixing block. The utility model can adjust the distance between the upper pressure sensor and the lower pressure sensor, and is favorable for monitoring the change of liquid level in different ranges.
Description
Technical Field
The utility model relates to the field of balancing weights, in particular to a balancing weight for a crankshaft.
Background
The crankshaft of the air conditioner compressor needs to achieve dynamic balance when rotating at high speed so as to eliminate or reduce vibration and noise generated when the crankshaft rotates at high speed, and a balancing weight is assembled on the crankshaft so that the crankshaft achieves balance when running. Besides the balance of the crankshaft balance block during the operation of the crankshaft, the weight, the gravity center and other factors of the crankshaft balance block are considered to reduce the power consumption during the operation of the crankshaft, so that the structural arrangement of the crankshaft balance block is very important.
The crankshaft balance block disclosed by China utility model (bulletin number: CN 208503359U) comprises a balance block body, wherein the balance block body comprises a shaft sleeve part with an axial through hole and a fan-shaped part which is arranged in a fan-shaped structure by taking the central axis of the axial through hole as the center, the fan-shaped part and the shaft sleeve part are integrally formed by forging and pressing high-strength alloy steel, and the thickness of the outer edge of the fan-shaped part is larger than that of the inner side of the fan-shaped part.
In the process of realizing the utility model, the inventor finds that at least the following problems exist in the technology, because the balance weight can be damaged during use, the damaged and replaced balance weight can not be used, but the balance weight and the crank are of an integrated structure, the mass size can not be changed, the balance weight can not be detached and replaced, the whole replacement is needed, and the replacement cost is high.
Disclosure of Invention
In order to improve the phenomenon that the balance weight can be damaged when in use, the balance weight which is damaged and replaced cannot be used, but the balance weight and the crank are of an integrated structure, the mass cannot be changed, the balance weight cannot be detached and replaced, the whole replacement is needed, and the replacement cost is high.
The utility model provides a balancing block for a crankshaft, which adopts the following technical scheme:
the balance block comprises a crankshaft body and a first balance block, wherein the top end of the crankshaft body is fixedly connected with a balance lug, one side, away from the balance lug, of the first balance block is provided with a fixed groove, one side, close to the fixed groove, of the first balance block is fixedly connected with a second balance block, one side, close to the fixed groove, of the second balance block is fixedly connected with a fixed arc block, the middle of the fixed arc block is provided with a fixed block, the fixed block is slidably connected inside the fixed groove, and a first fixed mechanism and a second fixed mechanism are arranged inside the fixed groove;
the first fixing mechanism comprises a trapezoidal block, a buffer spring and a lifting rod, wherein the trapezoidal block is provided with two groups of inner parts which are respectively symmetrical in the fixing grooves, the trapezoidal block is in sliding connection with the fixing grooves, one side, deviating from the trapezoidal block, of the trapezoidal block is provided with a containing groove, one end of the buffer spring is fixedly connected to one side of the trapezoidal block, the other end of the buffer spring is fixedly connected to the inner wall of the fixing groove, the lifting rod is arranged between the two trapezoidal blocks, and the inner structures of the first fixing mechanism and the second fixing mechanism are identical.
Through adopting above-mentioned technical scheme, through removing the fixed block to the fixed slot inside, the lifter receives the extrusion to one side and removes, just so drives the trapezoidal piece and receives the extrusion of lifter, removes to both sides, drives buffer spring and receives the extrusion, also can alleviate the buffer force.
Optionally, the inclined plane cooperation slip of lifter bottom and trapezoidal piece, the both sides of lifter bottom all roll connection has the ball.
Through adopting above-mentioned technical scheme, the setting of ball conveniently lets lifter remove above trapezoidal piece.
Optionally, the both sides of fixed block have seted up the empty slot respectively, the lifter card is inside the empty slot respectively.
Through adopting above-mentioned technical scheme, the setting of this kind of structure is convenient fixes the fixed block.
Optionally, fixed holes are respectively formed in two sides of the fixed arc block, and the fixed arc block is fixedly connected with the first balance block through bolts.
Through adopting above-mentioned technical scheme, the setting of this kind of structure can carry out the secondary to fixed arc piece and admittedly.
Optionally, the side of balancing lug is provided with the draw-in groove, one side fixedly connected with fixture block of first balancing piece, the fixture block card is inside the draw-in groove.
Through adopting above-mentioned technical scheme, the setting of this kind of structure can dismantle and install first balancing piece.
Optionally, the upper and lower both ends that are close to the fixture block of first balancing piece are fixedly connected with first balancing portion and second balancing portion respectively, first balancing portion and second balancing portion card are in the upper and lower both sides of balancing lug respectively.
Through adopting above-mentioned technical scheme, the setting of this kind of structure can dismantle and install first balancing piece.
Optionally, one side of the first balance weight away from the crankshaft body is fixedly connected with an eccentric shaft portion.
By adopting the technical scheme, the eccentric shaft part is arranged, so that the whole crankshaft body can rotate stably.
In summary, the utility model has the following beneficial effects:
according to the utility model, the fixed groove is formed in one side of the first balance block, the first fixed mechanism and the second fixed mechanism are arranged in the fixed groove, when the second balance block is required to be installed, the fixed block is moved into the fixed groove, the lifting rod is extruded to one side to move, so that the trapezoid block is driven to be extruded by the lifting rod to move to two sides, the buffer spring is driven to be extruded, the buffer force can be relieved, the fixed block is fixed at the bottom of the fixed groove, so that the lifting rod can be fixed on the empty groove of the fixed block, and when the second balance block is required to be disassembled, the fixed block is pulled to extrude the lifting rod to the trapezoid block, so that the trapezoid block is extruded to the buffer spring, the lifting rod can be moved to two sides, the fixed block can be pulled out, and the second balance block is convenient to fix and disassemble, and the operation is more convenient.
According to the utility model, the clamping block is arranged on one side of the first balance block, the first balance part and the second balance part are respectively and fixedly connected to the upper end and the lower end of the first balance block, which are close to the clamping block, the clamping groove is formed in the side face of the balance lug, the clamping block is clamped in the clamping groove, and the first balance part and the second balance part are clamped at the upper end and the lower end of the balance lug, so that the first balance block can be fixed and detached.
Drawings
Fig. 1 is a schematic perspective view of the whole structure of the present utility model.
Fig. 2 is a schematic perspective view of a second weight and a fixed arc block according to the present utility model.
FIG. 3 is a schematic view of the internal planar structure of the fixing groove of the present utility model.
Reference numerals illustrate:
1. a crankshaft body; 2. a first weight; 3. balance the lug; 4. a fixing groove; 5. a second weight; 6. a fixed block; 7. a trapezoid block; 8. a buffer spring; 9. a lifting rod; 10. a receiving groove; 11. a clamping groove; 12. a clamping block; 13. fixing the arc block; 14. a fixing hole; 15. a first balance part; 16. a second balancing part; 17. an eccentric shaft portion; 18. and (3) rolling balls.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
Referring to fig. 1-3, a balance block for a crankshaft includes a crankshaft body 1 and a first balance block 2, wherein a balance bump 3 is fixedly connected to the top end of the crankshaft body 1, a fixing groove 4 is formed on one side, away from the balance bump 3, of the first balance block 2, a second balance block 5 is fixedly connected to one side, close to the fixing groove 4, of the first balance block 2, a fixed arc block 13 is fixedly connected to one side, of the second balance block 5, a fixed block 6 is mounted in the middle of the fixed arc block 13, the fixed block 6 is slidably connected to the inside of the fixing groove 4, and a first fixing mechanism and a second fixing mechanism are mounted in the inside of the fixing groove 4;
the first fixed establishment includes trapezoidal piece 7, buffer spring 8 and lifter 9, and trapezoidal piece 7 is provided with two sets of just symmetry respectively in the inside of fixed slot 4, and trapezoidal piece 7 and fixed slot 4 sliding connection, one side that two sets of trapezoidal pieces 7 deviate from mutually is provided with holding tank 10, and buffer spring 8's one end fixed connection is on one side of trapezoidal piece 7, and buffer spring 8's the other end fixed connection is on the inner wall of fixed slot 4, and lifter 9 is arranged in between two trapezoidal pieces 7, and first fixed establishment is the same with the inner structure of second fixed establishment.
When the second balance weight 5 is required to be installed in use, the lifting rod 9 is extruded to one side to move through moving the fixed block 6 into the fixed groove 4, so that the trapezoid block 7 is driven to be extruded by the lifting rod 9 to move to two sides, the buffer spring 8 is driven to be extruded, and the buffer force can be reduced.
Referring to fig. 1 and 3, the bottom end of the lifting rod 9 slides in cooperation with the inclined plane of the trapezoid block 7, and the two sides of the bottom end of the lifting rod 9 are both in rolling connection with balls 18, so that the lifting rod 9 can conveniently move on the trapezoid block 7 through the balls 18, and buffering force can also be conveniently lightened. The empty slots are respectively formed in the two sides of the fixed block 6, and the lifting rods 9 are respectively clamped in the empty slots, so that the fixed block 6 is conveniently fixed.
Referring to fig. 1 and 2, fixing holes 14 are respectively formed at both sides of the fixing arc block 13, the fixing arc block 13 is fixedly connected with the first balance block 2 through bolts, and the fixing arc block 13 can be secondarily fixed through the fixing holes 14 and the bolts.
Referring to fig. 1, a clamping groove 11 is formed in a side surface of a balancing bump 3, a clamping block 12 is fixedly connected to one side of a first balancing block 2, the clamping block 12 is clamped in the clamping groove 11, a first balancing part 15 and a second balancing part 16 are fixedly connected to the upper end and the lower end of the first balancing block 2, which are close to the clamping block 12, respectively, the first balancing part 15 and the second balancing part 16 are clamped on the upper side and the lower side of the balancing bump 3, respectively, and the first balancing block 2 can be fixed on one side of the balancing bump 3.
Referring to fig. 1, an eccentric shaft portion 17 is fixedly connected to a side of the first balance weight 2 remote from the crankshaft body 1, and the crankshaft body 1 as a whole can be smoothly rotated by the eccentric shaft portion 17.
The implementation principle of the utility model is as follows: through seting up fixed slot 4 in one side of first balancing piece 2, the internally mounted of fixed slot 4 has first fixed establishment and second fixed establishment, when needs are installed second balancing piece 5, through moving fixed block 6 to fixed slot 4 inside, lifter 9 receives the extrusion to one side and removes, just so drive trapezoidal piece 7 and receive the extrusion of lifter 9, it removes to both sides, drive buffer spring 8 and receive the extrusion, also can alleviate the buffering power, make fixed block 6 fix the bottom at fixed slot 4, just so can fix lifter 9 above the empty slot of fixed block 6, when needs are torn open, through pulling second balancing piece 5, make fixed block 6 extrude lifter 9, drive lifter 9 to trapezoidal piece 7 and extrude, make trapezoidal piece 7 extrude to buffer spring 8, just so can remove lifter 9 to both sides, just can pull out fixed block 6, the convenience is fixed and is dismantled second balancing piece 5, just can fix and dismantle second balancing piece 5, and be convenient more operate.
Through installing fixture block 12 in one side of first balancing piece 2, the upper and lower both ends that are close to fixture block 12 of first balancing piece 2 are fixedly connected with first balancing portion 15 and second balancing portion 16 respectively, and the side of balancing lug 3 is provided with draw-in groove 11, through the fixture block 12 card inside draw-in groove 11, through the upper and lower both ends that block first balancing portion 15 and second balancing portion 16 at balancing lug 3, just so can fix and dismantle first balancing piece 2.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (7)
1. Balance weight for crankshaft, comprising a crankshaft body (1) and a first balance weight (2), characterized in that: the novel crankshaft is characterized in that a balancing lug (3) is fixedly connected to the top end of the crankshaft body (1), a fixing groove (4) is formed in one side, away from the balancing lug (3), of the first balancing block (2), a second balancing block (5) is fixedly connected to one side, close to the fixing groove (4), of the first balancing block (2), a fixing arc block (13) is fixedly connected to one side of the second balancing block (5), a fixing block (6) is installed in the middle of the fixing arc block (13), the fixing block (6) is slidably connected to the inside of the fixing groove (4), and a first fixing mechanism and a second fixing mechanism are installed in the inside of the fixing groove (4);
the first fixing mechanism comprises a trapezoid block (7), a buffer spring (8) and a lifting rod (9), wherein the trapezoid block (7) is provided with two groups of lifting rods which are respectively symmetrically arranged inside the fixing groove (4), the trapezoid block (7) is slidably connected with the fixing groove (4), two groups of the trapezoid block (7) are provided with a containing groove (10) on one side, deviating from the trapezoid block (7), of the first fixing mechanism, one end of the buffer spring (8) is fixedly connected to one side of the trapezoid block (7), the other end of the buffer spring (8) is fixedly connected to the inner wall of the fixing groove (4), the lifting rod (9) is arranged between the two trapezoid blocks (7), and the inner structures of the first fixing mechanism and the second fixing mechanism are identical.
2. A counterweight for a crankshaft as in claim 1, wherein: the bottom end of the lifting rod (9) slides in a matched manner with the inclined plane of the trapezoid block (7), and balls (18) are connected to the two sides of the bottom end of the lifting rod (9) in a rolling manner.
3. A counterweight for a crankshaft as in claim 1, wherein: empty slots are respectively formed in two sides of the fixed block (6), and the lifting rods (9) are respectively clamped in the empty slots.
4. A counterweight for a crankshaft as in claim 1, wherein: fixing holes (14) are respectively formed in two sides of the fixing arc block (13), and the fixing arc block (13) is fixedly connected with the first balance block (2) through bolts.
5. A counterweight for a crankshaft as in claim 1, wherein: the side of balancing lug (3) is provided with draw-in groove (11), one side fixedly connected with fixture block (12) of first balancing piece (2), fixture block (12) card is inside draw-in groove (11).
6. A weight for a crankshaft as set forth in claim 5, wherein: the upper end and the lower end of the first balance block (2) close to the clamping block (12) are fixedly connected with a first balance part (15) and a second balance part (16) respectively, and the first balance part (15) and the second balance part (16) are clamped on the upper side and the lower side of the balance lug (3) respectively.
7. A counterweight for a crankshaft as in claim 1, wherein: one side of the first balance block (2) far away from the crankshaft body (1) is fixedly connected with an eccentric shaft part (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321933737.XU CN220337371U (en) | 2023-07-21 | 2023-07-21 | Balance weight for crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321933737.XU CN220337371U (en) | 2023-07-21 | 2023-07-21 | Balance weight for crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220337371U true CN220337371U (en) | 2024-01-12 |
Family
ID=89461130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321933737.XU Active CN220337371U (en) | 2023-07-21 | 2023-07-21 | Balance weight for crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220337371U (en) |
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2023
- 2023-07-21 CN CN202321933737.XU patent/CN220337371U/en active Active
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