CN217421688U - Hydraulic crank connecting rod mechanism - Google Patents
Hydraulic crank connecting rod mechanism Download PDFInfo
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- CN217421688U CN217421688U CN202220581261.7U CN202220581261U CN217421688U CN 217421688 U CN217421688 U CN 217421688U CN 202220581261 U CN202220581261 U CN 202220581261U CN 217421688 U CN217421688 U CN 217421688U
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- oil cylinder
- connecting rod
- piston rod
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Abstract
The utility model relates to a hydraulic pressure crank link mechanism belongs to transmission technical field. The hydraulic crank-link mechanism comprises a hydraulic oil cylinder, a connecting rod, a crank and a driven plate, wherein one end of the connecting rod is rotatably connected with a piston rod of the hydraulic oil cylinder, the other end of the connecting rod is hinged with the crank, the middle part of one side of the driven plate is fixedly connected with a rotating shaft, and the crank is fixedly connected with the rotating shaft through a shaft end baffle mechanism; the shaft end baffle mechanism comprises two shaft end baffles which are respectively abutted against the outer side wall of the rotating shaft. The utility model replaces the original two-stage transmission of the motor reducer by the hydraulic oil cylinder, and the piston rod of the hydraulic oil cylinder drives the connecting rod and the crank, thereby driving the driven disc to rotate and linearly move, realizing more complex operation and movement track, having small occupied area and simple mechanism; wherein axle end baffle mechanism carries out the centre gripping through two axle end baffles to the pivot and fixes, can prevent to produce between pivot and the crank and slide to driven effective and stable has been guaranteed.
Description
Technical Field
The utility model relates to a hydraulic pressure crank link mechanism belongs to transmission technical field.
Background
In the prior art, a mechanism for converting linear reciprocating motion into rotary motion mostly adopts a motor reducer pressurizing tight wheel device for driving, a single-crank connecting rod mechanism and a double-crank connecting rod mechanism are mostly adopted for the reciprocating motion, the linear motion stroke generated by the single-crank connecting rod mechanism is fixed and is not easy to adjust, the crank position of the double-crank connecting rod mechanism is difficult to determine, the synchronism of two connecting rod cranks is poor, and the transmission precision is poor.
Therefore, the development of a transmission device with adjustable linear motion stroke, simple structure and stable operation is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to, it is not enough to prior art, provide a hydraulic pressure crank link mechanism.
The utility model discloses a solve the technical scheme that above-mentioned technical problem provided and be: a hydraulic crank connecting rod mechanism comprises a hydraulic oil cylinder, a connecting rod, a crank and a driven plate, wherein one end of the connecting rod is rotatably connected with the end part of a piston rod of the hydraulic oil cylinder, the other end of the connecting rod is hinged with one end of the crank, the middle part of one side of the driven plate is fixedly connected with a rotating shaft, and the other end of the crank is fixedly connected with the rotating shaft through a shaft end baffle mechanism; the shaft end baffle mechanism comprises two shaft end baffles, the rotating shaft penetrates through the crank to be arranged, the two shaft end baffles are symmetrically arranged on the crank and are close to the rotating shaft, one side, close to each other, of the two shaft end baffles is provided with an arc-shaped groove matched with the outer side wall of the rotating shaft respectively, and the two shaft end baffles are abutted to the outer side wall of the rotating shaft respectively.
The improvement of the technical scheme is as follows: the upper end of the hydraulic oil cylinder is provided with an oil way valve block, and the upper end of the oil way valve block is provided with a three-position four-way electromagnetic directional valve.
The improvement of the technical scheme is as follows: the telescopic one side that tribit four-way solenoid directional valve is close to the piston rod is provided with the hydro-cylinder gag lever post, and the one end interval that the hydro-cylinder gag lever post is close to the piston rod is provided with the horizontal through-hole of two rectangular shapes, and two horizontal through-holes articulate respectively has and is close the piece, and the piston rod tip is provided with and is close piece assorted proximity switch.
The improvement of the technical scheme is as follows: the piston rod end portion is fixedly connected with a connecting block, the outer wall of one side of the connecting block is fixedly connected with a connecting shaft, the connecting shaft penetrates through the connecting rod and is provided with a cotter pin at the end portion, and the proximity switch is fixedly connected with the upper end of the connecting block.
The improvement of the technical scheme is as follows: the connecting groove is formed in one end of the crank in the length direction, and one end, far away from the piston rod, of the connecting rod extends into the connecting groove and is hinged to the crank through the pin shaft.
The improvement of the technical scheme is as follows: two ends of the two shaft end baffles are fixedly connected with the crank through bolts respectively.
The improvement of the technical scheme is as follows: the upper end of the three-position four-way electromagnetic directional valve is provided with a high-pressure oil inlet, and a one-way valve is arranged at the high-pressure oil inlet.
The improvement of the technical scheme is as follows: and an oil return port is formed in one side of the oil way valve block.
The improvement of the technical scheme is as follows: one side of the oil way valve block, which is close to the piston rod, is communicated with the hydraulic oil cylinder through an oil inlet of the A-phase oil cylinder, and one side of the oil way valve block, which is far away from the piston rod, is communicated with the hydraulic oil cylinder through an oil inlet of the B-phase oil cylinder.
The utility model adopts the above technical scheme's beneficial effect is:
(1) the hydraulic crank-link mechanism of the utility model replaces the original two-stage transmission of the motor reducer by the hydraulic oil cylinder, the piston motion of the rod cavity/rodless cavity of the hydraulic oil cylinder drives the piston rod, the piston rod drives the connecting rod and the crank, thereby driving the driven disc to rotate and linearly move, realizing more complex operation and motion trail, having small occupied area and simple mechanism; compared with the traditional two-stage transmission of the motor reducer, the utility model has the advantages of light abrasion among the components, large transmission power and prolonged service life by 5-10 times; the shaft end baffle mechanism clamps and fixes the rotating shaft through the two shaft end baffles, so that the sliding between the rotating shaft and the crank can be prevented, and the transmission efficiency and stability are ensured;
(2) the utility model discloses a hydraulic pressure crank link mechanism can adjust two distances that are close between the piece through adjusting the position that is close the piece at horizontal through-hole, can realize the regulation of hydraulic cylinder stroke through proximity switch's cooperation.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic perspective view of a hydraulic crank link mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of a three-dimensional structure of a hydraulic cylinder of the hydraulic crank link mechanism according to the embodiment of the present invention;
wherein: 1-hydraulic oil cylinder, 2-high-pressure oil inlet, 2.1-one-way valve, 3-three-position four-way electromagnetic directional valve, 4-oil cylinder limiting rod, 5-horizontal through hole, 6-proximity switch, 7-proximity block, 8-connection block, 9-oil return port, 10-oil way valve block, 11-piston rod, 12-connection shaft, 13-split pin, 14-connection rod, 15-connection groove, 16-pin shaft, 17-crank, 18-driven disc, 18.1-rotating shaft, 19-shaft end baffle, 20-bolt, 21-B phase oil cylinder oil inlet, 22-A phase oil cylinder oil inlet and 23-A/B phase electromagnetic directional valve.
Detailed Description
Examples
The hydraulic crank-link mechanism of the present embodiment, as shown in fig. 1 and 2, includes a hydraulic cylinder 1, a connecting rod 14, a crank 17 and a driven plate 18, wherein one end of the connecting rod 14 is rotatably connected to an end of a piston rod 11 of the hydraulic cylinder 1, the other end of the connecting rod 14 is hinged to one end of the crank 17, a rotating shaft 18.1 is fixedly connected to a middle portion of one side of the driven plate 18, and the other end of the crank 17 is fixedly connected to the rotating shaft 18.1 through a shaft end baffle mechanism; the shaft end baffle mechanism comprises two shaft end baffles 19, the rotating shaft 18.1 penetrates through the crank 17, the two shaft end baffles 19 are symmetrically arranged on the crank 17 and are close to the rotating shaft 18.1, one side, close to each other, of the two shaft end baffles 19 is respectively provided with an arc-shaped groove matched with the outer side wall of the rotating shaft 18.1, the two shaft end baffles 19 are respectively abutted against the outer side wall of the rotating shaft 18.1, and two ends of the two shaft end baffles 19 are respectively fixedly connected with the crank 17 through bolts 20.
In the hydraulic crank link mechanism of the present embodiment, an oil path valve block 10 is disposed at the upper end of the hydraulic cylinder 1, and a three-position four-way electromagnetic directional valve 3 is disposed at the upper end of the oil path valve block 10. One side of the three-position four-way electromagnetic directional valve 3 close to the piston rod is provided with an oil cylinder limiting rod 4 in a telescopic mode, one end of the oil cylinder limiting rod 4 close to the piston rod 11 is provided with two long-strip-shaped horizontal through holes 5 at intervals, the two horizontal through holes 5 are respectively hinged with a proximity block 7, and the end portion of the piston rod 11 is provided with a proximity switch 6 matched with the proximity block 7. The end part of the piston rod 11 is fixedly connected with a connecting block 8, the outer wall of one side of the connecting block 8 is fixedly connected with a connecting shaft 12, the connecting shaft 12 penetrates through a connecting rod 14 and is provided with a cotter 13 at the end part, and the proximity switch 6 is fixedly connected with the upper end of the connecting block 8.
In the hydraulic crank-link mechanism of this embodiment, a connecting groove 15 is formed in one end of the crank 17 along the length direction, and one end of the connecting rod 14 away from the piston rod 11 extends into the connecting groove 15 and is hinged to the crank 17 through a pin 16.
The upper end of a three-position four-way electromagnetic directional valve 3 of the hydraulic crank link mechanism of the embodiment is provided with a high-pressure oil inlet 2, and a one-way valve 2.1 is arranged at the high-pressure oil inlet 2. The A/B phase electromagnetic reversing valve 23 is arranged on two sides of the three-position four-way electromagnetic reversing valve 3, and the oil return port 9 is arranged on one side of the oil way valve block 10. One side of the oil way valve block 10 close to the piston rod 11 is communicated with the hydraulic oil cylinder 1 through an oil inlet 22 of the phase A oil cylinder, and one side of the oil way valve block 10 far away from the piston rod is communicated with the hydraulic oil cylinder 1 through an oil inlet 21 of the phase B oil cylinder. Wherein the one-way valve 2.1 can prevent oil return of the oil way.
When the hydraulic crank-link mechanism is used, firstly, the distance between the two approach blocks 7 is adjusted by adjusting the positions of the approach blocks 7 in the horizontal through holes 5, and the stroke of the hydraulic oil cylinder 1 can be adjusted by matching the approach switches 6, so that the adjustment of the rotation and linear motion of the driven disc 18 is realized; then, a hydraulic system is started to drive the hydraulic oil cylinder 1 to extend and retract, a piston of a rod cavity/rodless cavity of the hydraulic oil cylinder 1 moves to drive the piston rod 11, the piston rod 11 drives the connecting rod 14 and the crank 17, so that the driven disc 18 is driven to rotate and linearly move, and the rotation of the driven disc 18 is reciprocating motion with an angle smaller than 360 degrees. The switching of the extending and retracting processes of the piston rod 11 is controlled by the three-position four-way electromagnetic directional valve 3, when the approach block 7 and the approach switch 6 are in contact induction, a contact induction signal can reflect to the three-position four-way electromagnetic directional valve 3, and the three-position four-way electromagnetic directional valve 3 realizes the movement of the valve core through the attraction of the electromagnet on the A/B phase electromagnetic directional valve 23, so that the on-off of an oil path is changed, and the reversing of an execution element is realized.
The present invention is not limited to the above embodiment. All technical solutions formed by equivalent substitutions fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a hydraulic pressure crank link mechanism which characterized in that: the hydraulic oil cylinder driving mechanism comprises a hydraulic oil cylinder, a connecting rod, a crank and a driven disc, wherein one end of the connecting rod is rotatably connected with the end part of a piston rod of the hydraulic oil cylinder, the other end of the connecting rod is hinged with one end of the crank, a rotating shaft is fixedly connected to the middle part of one side of the driven disc, and the other end of the crank is fixedly connected with the rotating shaft through a shaft end baffle mechanism; the shaft end baffle mechanism comprises two shaft end baffles, the rotating shaft penetrates through the crank, the two shaft end baffles are symmetrically arranged on the crank and close to the rotating shaft, arc-shaped grooves matched with the outer side wall of the rotating shaft are formed in one side, close to each other, of the two shaft end baffles, and the two shaft end baffles are abutted to the outer side wall of the rotating shaft respectively.
2. The hydraulic crank linkage as claimed in claim 1, characterized in that: an oil way valve block is arranged at the upper end of the hydraulic oil cylinder, and a three-position four-way electromagnetic reversing valve is arranged at the upper end of the oil way valve block.
3. The hydraulic crank-link mechanism of claim 2, wherein: the three-position four-way electromagnetic directional valve is close to one side telescopic of piston rod is provided with the hydro-cylinder gag lever post, the hydro-cylinder gag lever post is close to the one end interval of piston rod is provided with the horizontal through-hole of two rectangular shapes, two horizontal through-holes articulate respectively and are close the piece, tailpiece of the piston rod portion be provided with be close piece assorted proximity switch.
4. The hydraulic crank-link mechanism of claim 3, wherein: the piston rod end portion is fixedly connected with a connecting block, the outer wall of one side of the connecting block is fixedly connected with a connecting shaft, the connecting shaft penetrates through the connecting rod, a cotter pin is arranged at the end portion of the connecting rod, and the proximity switch is fixedly connected with the upper end of the connecting block.
5. The hydraulic crank-link mechanism according to claim 1, characterized in that: the one end of crank has seted up the spread groove along length direction, the one end that the connecting rod was kept away from the piston rod stretches into the spread groove and through the round pin axle with the crank is articulated.
6. The hydraulic crank-link mechanism according to claim 1, characterized in that: and two ends of the two shaft end baffles are fixedly connected with the crank through bolts respectively.
7. The hydraulic crank linkage as claimed in claim 2, characterized in that: the upper end of the three-position four-way electromagnetic directional valve is provided with a high-pressure oil inlet, and a one-way valve is arranged at the high-pressure oil inlet.
8. The hydraulic crank-link mechanism of claim 2, wherein: and an oil return port is formed in one side of the oil way valve block.
9. The hydraulic crank-link mechanism of claim 2, wherein: one side of the oil way valve block, which is close to the piston rod, is communicated with the hydraulic oil cylinder through an oil inlet of the phase A oil cylinder, and one side of the oil way valve block, which is far away from the piston rod, is communicated with the hydraulic oil cylinder through an oil inlet of the phase B oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220581261.7U CN217421688U (en) | 2022-03-16 | 2022-03-16 | Hydraulic crank connecting rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220581261.7U CN217421688U (en) | 2022-03-16 | 2022-03-16 | Hydraulic crank connecting rod mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421688U true CN217421688U (en) | 2022-09-13 |
Family
ID=83179195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220581261.7U Active CN217421688U (en) | 2022-03-16 | 2022-03-16 | Hydraulic crank connecting rod mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421688U (en) |
-
2022
- 2022-03-16 CN CN202220581261.7U patent/CN217421688U/en active Active
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