CN215509902U - Plunger subassembly rolls loose device - Google Patents
Plunger subassembly rolls loose device Download PDFInfo
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- CN215509902U CN215509902U CN202120639237.XU CN202120639237U CN215509902U CN 215509902 U CN215509902 U CN 215509902U CN 202120639237 U CN202120639237 U CN 202120639237U CN 215509902 U CN215509902 U CN 215509902U
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- roller
- plunger assembly
- workbench
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Abstract
The utility model discloses a rolling and loosening device for a plunger assembly, which relates to the technical field of mechanical assembly and comprises a workbench, wherein a chuck is arranged on the workbench and connected with a rotary driving mechanism for driving the chuck to rotate around a vertical axis of the chuck; an upper pressure head mechanism capable of lifting is arranged right above the chuck, a plurality of roller mechanisms are uniformly distributed on the workbench in the circumferential direction of the chuck, and each roller mechanism comprises a roller and a telescopic driving mechanism for driving the roller to move along the radial direction of the axial lead of the chuck; the utility model can effectively avoid the deviation of the blocking component during rotation, thereby avoiding the problem of uneven rolling caused by the combined action of the rotation deviation of the plunger component and the roller; the plurality of rollers are matched to extrude in the circumferential equal-division direction, so that the regular deformation of the rolling-loose part of the sliding shoe is effectively ensured, and the whole device is higher in economy and practicability.
Description
Technical Field
The utility model relates to the technical field of mechanical assembly, in particular to a plunger assembly rolling and loosening device.
Background
The plunger pump is an important device of a hydraulic system, the core part of the plunger pump is a sliding shoe type plunger assembly, the plunger pump comprises a plunger and a sliding shoe, the volume of a sealed working cavity is changed by means of reciprocating motion of the plunger in a cylinder body to realize oil absorption and oil pressing, and the plunger pump is widely applied to occasions where high pressure, large flow and flow need to be adjusted, such as hydraulic machines, engineering machinery and ships. The head of the plunger is a ball head, the sliding shoe comprises a flange type connecting disc and a plunger connecting part, the plunger connecting part is provided with an inwards-recessed spherical cavity, the plunger connecting part wraps the ball head after the plunger is assembled and molded with the plunger, and the ball head can rotate in the plunger connecting part.
After the closing by the method, the sliding shoe and the plunger body cannot flexibly rotate and can flexibly rotate only through a rolling loosening process. The traditional rolling loosening is generally carried out on a lathe, a soft clamping jaw is used for clamping a product during machining, a rolling loosening roller is arranged on a tool rest, the defects that the cost is high, the rolling loosening force cannot be accurately controlled, the deformation of a rolled loose part of a sliding shoe is irregular and the like exist, and the consistency is poor during mass production of the product.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: in order to solve the technical problem, the utility model provides a plunger assembly loosening device which enables the loosening stress of a sliding shoe to be more stable and the deformation to be more regular.
The utility model specifically adopts the following technical scheme for realizing the purpose:
a rolling and loosening device for a plunger assembly comprises a workbench, wherein a chuck is arranged on the workbench and is connected with a rotary driving mechanism for driving the chuck to rotate around a vertical axis of the chuck; the upper pressure head mechanism capable of lifting is arranged right above the chuck, a plurality of roller mechanisms are uniformly distributed on the workbench in the circumferential direction of the chuck, and each roller mechanism comprises a roller and a telescopic driving mechanism for driving the roller to move along the axial lead of the chuck in the radial direction.
Preferably, rotary driving mechanism includes and rotates the chuck mount pad of connection on the workstation through the bearing frame, the chuck is fixed on the chuck mount pad, the vertical downwardly extending in bottom center of chuck mount pad has the connecting axle, and the coupling joint is used to the connecting axle has the motor.
Preferably, the telescopic driving mechanism comprises a mounting seat, a hydraulic cylinder is fixed on the mounting seat, the telescopic end of the hydraulic cylinder faces the axial lead of the chuck, the telescopic end of the hydraulic cylinder is connected with a roller seat through a connecting seat, the roller is rotatably connected to the front end of the roller seat, and the axial lead of the roller is perpendicular to the telescopic direction line of the hydraulic cylinder.
Preferably, the front end of the roller seat is provided with a positioning pin, and the roller is rotatably mounted on the positioning pin through a bearing.
Preferably, all hydraulic cylinders share the same hydraulic pressure source.
Preferably, the telescopic end of the hydraulic cylinder drives the roller seat to incline downwards by 15-30 degrees.
Preferably, the longitudinal section of the roller is isosceles trapezoid, and the wheel surface of the roller is in vertical linear contact with the plunger assembly positioned on the chuck.
Preferably, be provided with the waist type hole of being convenient for between the radial distance of gyro wheel mechanism and the adjustment of last pressure head mechanism and the chuck on the workstation, gyro wheel mechanism and last pressure head mechanism all pass through the bolt fastening on the waist type hole that corresponds.
Preferably, the chuck includes jaws, which are movable in a radial direction of the chuck.
The utility model has the following beneficial effects:
1. the plunger assembly rolling loosening device is characterized in that a chuck is arranged on a workbench and is connected with a rotary driving mechanism which drives the chuck to rotate around a vertical axis of the chuck; an upper pressure head mechanism capable of lifting is arranged right above the chuck, and a plurality of roller mechanisms are uniformly distributed on the workbench in the circumferential direction of the chuck, so that the plunger assembly is vertically positioned when being loosened, and compared with transverse positioning, the plunger assembly can be effectively prevented from deviating during rotation, and the problem of uneven loosening caused by the combined action of the rotating deviation of the plunger assembly and the rollers is avoided; the plurality of rollers are matched to extrude in the circumferential equal division direction, so that the stress of a rolling-loosening deformation area of the sliding shoe is uniform, the regular deformation of the rolling-loosening part of the sliding shoe is effectively ensured, and the consistency of workpieces is ensured; meanwhile, compared with a lathe, the plunger assembly rotating and positioning device of the device has lower cost and stronger economical efficiency and practicability;
2. the roller mechanism drives the rollers to do telescopic motion through the hydraulic cylinders, and can simply and conveniently realize accurate adjustment of equal pressure of the rollers by means that the hydraulic cylinders share the same hydraulic pressure source, so that regular deformation of the rolled position of the sliding shoe is ensured, the whole structure is simple, convenient and fast to control and stable in performance;
3. the telescopic end of the hydraulic cylinder drives the roller seat to incline downwards by 15-30 degrees, the longitudinal section of the roller is isosceles trapezoid, the wheel surface of the roller is in vertical linear contact with the plunger assembly positioned on the chuck, compared with the roller which advances horizontally, the front end of the roller inclines downwards, the front end of the connecting structure of the roller is prevented from interfering with the plunger assembly to the greatest extent, the outer surface of the plunger assembly is prevented from being scratched by collision, and more importantly, the roller or the plunger assembly is prevented from shifting due to the interference of a roller mechanism and the plunger assembly or the chuck, so that the plunger assembly is prevented from being loosened and deformed badly;
4. the workbench is provided with the kidney-shaped holes which are convenient for the roller mechanism and the upper pressure head mechanism to adjust the radial distance between the roller mechanism and the chuck, and the roller mechanism and the upper pressure head mechanism are fixed on the corresponding kidney-shaped holes through bolts, so that the distances between the roller mechanism and the chuck and between the upper pressure head mechanism and the chuck can be flexibly adjusted according to the actual production requirements and the outer diameter of the plunger assembly, and the universality and the flexible adjustability of the whole device are effectively ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the table of FIG. 1;
fig. 3 is an overall schematic view of the roller mechanism of the present invention.
Description of the drawings: 1-workbench, 2-roller mechanism, 3-upper pressure head mechanism, 4-chuck, 5-electric cabinet, 6-plunger, 7-jack catch, 8-chuck mounting seat, 9-coupler, 10-speed reducer, 11-motor, 12-mounting seat, 13-fixing plate, 14-hydraulic cylinder, 15-connecting seat, 16-positioning pin, 17-roller seat, 18-roller and 19-single-row tapered roller bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 and fig. 2, the plunger assembly roll loosening apparatus provided in this embodiment includes a table 1, a chuck 4 is disposed on the table 1, and the chuck 4 is connected to a rotation driving mechanism for driving the chuck 4 to rotate around a vertical axis thereof; be equipped with elevating movement's last pressure head mechanism 3 directly over chuck 4, the circumference evenly distributed who lies in chuck 4 on the workstation has several gyro wheel mechanism 2, and the distribution has three gyro wheel mechanism 2 in this embodiment, and every gyro wheel mechanism 2 includes gyro wheel 18 and the flexible actuating mechanism of the radial movement of drive roller 18 along chuck 4 axial lead.
Wherein, rotary driving mechanism includes to rotate the chuck mount pad 8 of connection on workstation 1 through the bearing frame, chuck 4 is fixed on chuck mount pad 8, the vertical downwardly extending in bottom center of chuck mount pad 8 has the connecting axle, and the connecting axle is connected with motor 11 through shaft coupling 9.
The telescopic driving mechanism comprises a mounting base 12, a hydraulic cylinder 14 is fixed on the mounting base 12, the telescopic end of the hydraulic cylinder 14 faces to the axial lead of the chuck 4, the telescopic end of the hydraulic cylinder 14 is connected with a roller seat 17 through a connecting base 15, a positioning pin 16 is arranged at the front end of the roller seat 17, a roller 18 is rotatably installed on the positioning pin 16 through a single-row tapered roller bearing 19, and the axial lead of the roller 18 is perpendicular to the telescopic direction line of the hydraulic cylinder 14.
To facilitate equal pressure adjustment of the three rollers 18, the three hydraulic cylinders 14 share a common source of hydraulic pressure.
Wherein, chuck 4 includes jack catch 7, and radial movement of chuck 4 can be followed to jack catch 7, and its structure refers to three-jaw chuck, and radial movement distance passes through manual mode adjustment, and the rubber pad can be laminated to the medial surface of jack catch 7, avoids causing the bump scratch to the piston shoes.
Be provided with the waist type hole of being convenient for between gyro wheel mechanism 2 and the adjustment of last pressure head mechanism 3 and the chuck 4 radial distance on the workstation, gyro wheel mechanism 2 and last pressure head mechanism 3 all pass through the bolt fastening on the waist type hole that corresponds, are convenient for according to the nimble distance between gyro wheel mechanism 2 of big or small adjustment of actual production demand, 6 external diameters of plunger subassembly and last pressure head mechanism 3 and chuck 4, effectively ensure whole device's commonality and nimble adjustability.
Wherein, go up pressure head mechanism 3 and adopt ordinary elevating system control go up the pressure head up-and-down reciprocating motion can, in this embodiment, go up pressure head mechanism 3 and include the lifter plate by gear chain subassembly transmission, the lifter plate slides and sets up on the support frame, the support frame passes through the bolt fastening on the waist type hole of workstation, is fixed with the last pressure head that corresponds from top to bottom with chuck 4 on the lifter plate.
Certainly, in order to facilitate the control of the whole device, an electric cabinet is arranged beside the workbench, a PLC is arranged in the electric cabinet, and the PLC controls the hydraulic cylinders of the upper pressure head mechanism, the chuck and the roller mechanism to work in coordination.
The working principle is as follows: placing the plunger assembly with the piston shoe facing downwards and the plunger facing upwards into the chuck jaws, and operating the chuck to clamp the plunger assembly; operating the upper pressure head mechanism to lower the pressure head along the vertical direction, and pressing and keeping the upper end surface of the plunger; starting a motor of the chuck to drive the plunger assembly to rotate around a vertical axis; starting a hydraulic station of the roller mechanism, applying pressure to a hydraulic cylinder to push a roller to move forwards, extruding a sliding shoe and keeping the pressure; after the set working beat is reached, the pressure in the oil cylinder is reversed, and the piston moves backwards to drive the roller to move backwards to be separated from the sliding shoe; the chuck stops rotating, the upper pressure head moves upwards, is loosened, positioned and taken down to obtain the finished product.
Example 2
As shown in fig. 3, the present embodiment is further optimized based on embodiment 1, specifically:
the telescopic end of the hydraulic cylinder 14 drives the roller seat 17 to tilt downward by 15 degrees to 20 degrees, and in this embodiment, the roller seat is tilted by 20 degrees, specifically, a fixing plate 13 tilted by 20 degrees is fixed at the upper end of the mounting seat 12, the cylinder body of the hydraulic cylinder 14 is fixed on the fixing plate 13 in parallel, and the connecting seat 15 is connected on the fixing plate 13 in parallel and slidably, so that the telescopic end of the hydraulic cylinder 14 drives the roller seat 17 to tilt downward by 20 degrees.
On the basis of 20 degrees of downward inclination of the roller seat 17, the longitudinal section of the roller 18 is in an isosceles trapezoid shape, the vertical linear contact between the wheel surface of the roller 18 and the plunger assembly 6 positioned on the chuck 4 is ensured, the force application surface of the roller 18 to the sliding shoe is ensured to be in uniform contact with the sliding shoe up and down, the interference between the front end of the connecting structure of the roller 18 and the plunger assembly 6 is avoided to the maximum extent, the collision scratch on the outer surface of the plunger assembly 6 is avoided, more importantly, the roller 18 or the plunger assembly 6 is prevented from being displaced due to the interference between the roller mechanism 2 and the plunger assembly 6 or the chuck 4, and the rolling-loosening deformation of the plunger assembly 6 is poor.
Claims (9)
1. The plunger assembly rolling loosening device is characterized by comprising a workbench (1), wherein a chuck (4) is arranged on the workbench (1), and the chuck (4) is connected with a rotary driving mechanism for driving the chuck (4) to rotate around a vertical axial lead of the chuck; be equipped with elevating movement's last pressure head mechanism (3) directly over chuck (4), the circumference evenly distributed who lies in chuck (4) on the workstation has several gyro wheel mechanism (2), every gyro wheel mechanism (2) include gyro wheel (18) and drive roller (18) along chuck (4) axial lead's radial movement's flexible actuating mechanism.
2. The plunger assembly roll loosening device according to claim 1, wherein the rotary driving mechanism comprises a chuck mounting seat (8) rotatably connected to the workbench through a bearing seat, the chuck (4) is fixed on the chuck mounting seat (8), a connecting shaft vertically extends downwards from the bottom center of the chuck mounting seat (8), and the connecting shaft is connected with a motor (11) through a coupling (9).
3. The plunger assembly roll-loosening device according to claim 1, wherein the telescopic driving mechanism comprises a mounting base (12), a hydraulic cylinder (14) is fixed on the mounting base (12), the telescopic end of the hydraulic cylinder (14) faces the axial lead of the chuck (4), the telescopic end of the hydraulic cylinder (14) is connected with a roller base (17) through a connecting base (15), the roller (18) is rotatably connected to the front end of the roller base (17), and the axial lead of the roller (18) is perpendicular to the telescopic direction line of the hydraulic cylinder (14).
4. A plunger assembly roll-loosening apparatus as claimed in claim 3, wherein the roller holder (17) is provided at its front end with a positioning pin (16), and the roller (18) is rotatably mounted on the positioning pin (16) by means of a bearing.
5. A ram assembly roll-loose device according to claim 3, characterised in that all hydraulic cylinders (14) share one and the same hydraulic pressure source.
6. A plunger assembly rock release apparatus as claimed in claim 3, characterised in that the telescopic end of the hydraulic cylinder (14) carries the roller mount (17) downwardly inclined at an angle of 15 to 20 degrees.
7. A plunger assembly roll-loosening device as claimed in claim 6, characterised in that the longitudinal section of the roller (18) is isosceles trapezoid, the tread of the roller (18) being in vertical linear contact with the plunger assembly (6) positioned on the chuck (4).
8. The plunger assembly roll loosening device according to claim 1, wherein waist-shaped holes facilitating adjustment of radial distances between the roller mechanism (2) and the upper pressure head mechanism (3) and the chuck (4) are formed in the workbench, and the roller mechanism (2) and the upper pressure head mechanism (3) are fixed on the corresponding waist-shaped holes through bolts.
9. A plunger assembly roll-loose device according to claim 1, characterised in that the chuck (4) comprises jaws (7), the jaws (7) being radially movable along the chuck (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120639237.XU CN215509902U (en) | 2021-03-29 | 2021-03-29 | Plunger subassembly rolls loose device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120639237.XU CN215509902U (en) | 2021-03-29 | 2021-03-29 | Plunger subassembly rolls loose device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215509902U true CN215509902U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120639237.XU Active CN215509902U (en) | 2021-03-29 | 2021-03-29 | Plunger subassembly rolls loose device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215509902U (en) |
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2021
- 2021-03-29 CN CN202120639237.XU patent/CN215509902U/en active Active
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