CN214887680U - Cylindrical blade groove type hydraulic pump - Google Patents

Abstract

The utility model discloses a cylinder blade slot type hydraulic pump relates to hydraulic pump technical field, including pump engine subassembly, the front bearing cap left side in the front pump cover left side of pump engine subassembly and the pump engine subassembly all is the fixed a plurality of movable stop gear that are provided with of annular, limiting plate among the movable stop gear shelters from the holding tank in to the pump engine subassembly. The utility model discloses a be provided with movable stop gear to limiting plate in utilizing movable stop gear shelters from the holding tank, and then makes the bolt by the urceolus or preceding pump cover on the pine take off the back, under the restriction of limiting plate, can't directly break away from on by preceding pump cover or the preceding bearing cap, compare the device of the same type among the prior art, the utility model discloses can effectively avoid taking off the back condition of losing of taking place for the bolt, when reseing front bearing cap and preceding pump cover simultaneously, need not to wear to establish the bolt again, and it is more convenient to use in practice.

Description

Cylindrical blade groove type hydraulic pump

Technical Field

The utility model relates to a hydraulic pump technical field, in particular to cylinder blade slot type hydraulic pump.

Background

Currently, three general types of hydraulic pumps in industrial use each have advantages and disadvantages: the gear pump has low efficiency, large noise and no variable quantity, and is difficult to realize high pressure; the displacement of the vane pump is stable, the noise is low, but the high-pressure vane pump is not economically manufactured; plunger pumps can operate at higher pressures, but are expensive, sensitive to contamination, and susceptible to flow pulsations and noise emissions.

Patent application publication No. CN 206668494U's utility model discloses a cylinder blade slot type hydraulic pump, its cylinder body one end has the annular groove, and its radial atress is balanced, two baffles of embedded length, baffle will join in marriage a class space and fall into four districts. The other end of the cylinder body is provided with a distribution plate, and an arc-shaped groove is arranged above the distribution plate to balance the axial force of the cylinder body. The arc-shaped groove is arranged below the distributing plate, the generated hydraulic pressure balances the axial force of the arc-shaped groove, and the residual pretightening force is formed to keep sealing. The blade is hollow, a cam pair is formed by the driving pin and the cam groove, the blade moves according to a cam curve, and the four areas of the flow distribution space are matched to finish the oil suction and discharge process. The blades do translation with equal height in the adjusting partition plate area, so that the theoretical flow pulsation rate of the pump is zero. The pump can easily realize variable, the cylindrical blades and the adjusting partition plates are driven to move by adjusting the axial positions of the cam grooves, and the effective height of the cylindrical blades at the adjusting partition plate area, which extends out of the bottom surface of the annular groove, is changed, so that the change of the discharge capacity is completed.

However, the device still has some defects in actual use, and it is obvious that the front bearing cover and the outer cylinder are both connected with the front pump cover through bolts, so that in the process of disassembling and overhauling the device, when the bolts are taken down, the situation of bolt loss is easy to occur, and meanwhile, after the front pump cover and the front bearing cover are reset, the bolts need to be threaded again, so that the device is inconvenient in actual use.

Therefore, it is necessary to provide a cylinder vane groove type hydraulic pump to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cylinder blade slot type hydraulic pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cylinder blade slot type hydraulic pump, includes pump engine subassembly, the preceding pump lid left side in pump engine subassembly and the preceding bearing cap left side in the pump engine subassembly all are the fixed a plurality of movable stop gear that are provided with of annular, limiting plate among the movable stop gear shelters from the holding tank in the pump engine subassembly.

Preferably, the pump assembly comprises an outer cylinder, a front pump cover, a front bearing cover, a spline shaft, a containing groove, a bolt and a threaded hole.

Preferably, preceding pump cover detachable nestification sets up in the urceolus left end, preceding bearing cap detachable nestification sets up in preceding pump cover left end, the integral key shaft is located the front bearing lid inboard, holding tank, bolt and screw hole all are provided with a plurality ofly, and are a plurality of the holding tank is the annular respectively and evenly sets up on preceding pump cover left surface and the front bearing lid left surface, and is a plurality of the bolt slides respectively and runs through and set up on preceding pump cover and front bearing lid, and is a plurality of the nut end of bolt is located inside a plurality of holding tanks respectively, and is a plurality of the screw hole is the annular respectively and evenly sets up on urceolus left surface and preceding pump cover left surface, and is a plurality of the screw rod end of bolt is located a plurality of screw hole inboards respectively.

Preferably, movable stop gear includes dead lever, torsional spring, end plate, first connecting plate, limiting plate, through-hole, second connecting plate and poker rod.

Preferably, the dead lever and preceding pump cover or front bearing cap fixed connection, the end plate is fixed to be set up in the dead lever left end, the torsional spring cup joints from the left hand right side with first connecting plate and sets up in the dead lever outside, first connecting plate rotates through the bearing and cup joints and sets up in the dead lever outside, torsional spring left end and end plate fixed connection and torsional spring right-hand member and first connecting plate fixed connection, the limiting plate is fixed to be set up in first connecting plate tip, through setting up on the limiting plate in the through-hole horizontal direction, the second connecting plate is fixed to be set up in the limiting plate outside, the poker rod is fixed to be set up in second connecting plate left surface.

The utility model discloses a technological effect and advantage:

the utility model discloses a be provided with movable stop gear to limiting plate in utilizing movable stop gear shelters from the holding tank, and then makes the bolt by the urceolus or preceding pump cover on the pine take off the back, under the restriction of limiting plate, can't directly break away from on by preceding pump cover or the preceding bearing cap, compare the device of the same type among the prior art, the utility model discloses can effectively avoid taking off the back condition of losing of taking place for the bolt, when reseing front bearing cap and preceding pump cover simultaneously, need not to wear to establish the bolt again, and it is more convenient to use in practice.

Drawings

Fig. 1 is a schematic overall front sectional structural view of the present invention.

Fig. 2 is a schematic front sectional structural view of the movable limiting mechanism of the present invention.

Fig. 3 is a schematic side view of the movable limiting mechanism of the present invention.

In the figure: 1. a pump assembly; 11. an outer cylinder; 12. a front pump cover; 13. a front bearing cover; 14. a spline shaft; 15. accommodating grooves; 16. a bolt; 17. a threaded hole; 2. a movable limiting mechanism; 21. fixing the rod; 22. a torsion spring; 23. an end plate; 24. a first connecting plate; 25. a limiting plate; 26. a through hole; 27. a second connecting plate; 28. a poke rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a cylinder blade slot type hydraulic pump as shown in fig. 1-3, including pump assembly 1, the front bearing cap 13 left side in pump assembly 1 and the front pump cover 12 left side of pump assembly 1 all is the fixed a plurality of movable stop gear 2 that are provided with of annular, and limiting plate 25 among the movable stop gear 2 shelters from holding tank 15 among the pump assembly 1.

As shown in fig. 1, the pump assembly 1 includes an outer cylinder 11, a front pump cover 12, a front bearing cover 13, a spline shaft 14, an accommodation groove 15, a bolt 16, and a screw hole 17.

More specifically, preceding pump cover 12 detachable nestification sets up in 11 left ends of urceolus, preceding bearing cap 13 detachable nestification sets up in 12 left ends of preceding pump cover, integral key shaft 14 is located preceding bearing cap 13 inboard, holding tank 15, bolt 16 and screw hole 17 all are provided with a plurality ofly, a plurality of holding tanks 15 are the annular respectively and evenly set up on preceding pump cover 12 left surface and preceding bearing cap 13 left surface, a plurality of bolts 16 slide respectively and run through and set up on preceding pump cover 12 and preceding bearing cap 13, and a plurality of bolts 16's nut end is located inside a plurality of holding tanks 15 respectively, a plurality of screw holes 17 are the annular respectively and evenly set up on 11 left surfaces of urceolus and preceding pump cover 12 left surface, a plurality of bolts 16's screw end is located a plurality of screw hole 17 inboards respectively.

As shown in fig. 2 and 3, the movable limiting mechanism 2 includes a fixing rod 21, a torsion spring 22, an end plate 23, a first connecting plate 24, a limiting plate 25, a through hole 26, a second connecting plate 27, and a tap lever 28.

More specifically, the fixing rod 21 is fixedly connected with the front pump cover 12 or the front bearing cover 13, the end plate 23 is fixedly arranged at the left end of the fixing rod 21, the torsion spring 22 and the first connecting plate 24 are sleeved outside the fixing rod 21 from left to right, the first connecting plate 24 is sleeved outside the fixing rod 21 through the bearing rotation, the left end of the torsion spring 22 is fixedly connected with the end plate 23 and the right end of the torsion spring 22 is fixedly connected with the first connecting plate 24, the limiting plate 25 is fixedly arranged at the end part of the first connecting plate 24, the through hole 26 is arranged on the limiting plate 25 in a penetrating manner in the horizontal direction, the second connecting plate 27 is fixedly arranged outside the limiting plate 25, the poke rod 28 is fixedly arranged at the left side surface of the second connecting plate 27 so as to shield the accommodating groove 15 by the limiting plate 25, and further to enable the bolt 16 to be directly separated from the front pump cover 12 or the front pump cover 11 after being loosened from the front pump cover 12, and under the limitation of the limiting plate 25, meanwhile, when the bolt 16 needs to be taken down from the front pump cover 12 for cleaning or replacement, a technician can toggle the toggle rod 28, so that the toggle rod 28 drives the limiting plate 25 to rotate by taking the fixing rod 21 as an axis, the limiting plate 25 is moved away from the accommodating groove 15 at the moment, the technician pushes the right end of the bolt 16, the bolt 16 can be taken down, and the detachment of the bolt 16 on the front bearing cover 13 can be completed in the same way.

The utility model discloses the theory of operation:

when in practical use, when a technician needs to detach the bolt 16 on the front pump cover 12, the technician can pass a screwdriver through the through hole 26, so that the end of the screwdriver enters the accommodating groove 15 to be matched with a clamping groove on a nut of the bolt 16, then rotate the screwdriver, pull the front pump cover 12 outwards in the rotation process of the screwdriver, and finish the detachment of the front pump cover 12 when the bolt 16 is moved out of the threaded hole 17 on the outer cylinder 11, and due to the shielding of the limiting plate 25, the bolt 16 on the front pump cover 12 cannot be pulled out of the accommodating groove 15 on the front pump cover 12, and in the same way, the detachment of the front bearing cover 13 can be finished;

when the bolt 16 needs to be taken down from the front pump cover 12 for cleaning or replacement, a technician can toggle the toggle rod 28, so that the toggle rod 28 drives the limiting plate 25 to rotate by taking the fixing rod 21 as an axis, the limiting plate 25 is moved away from the accommodating groove 15 at the moment, the technician pushes the right end of the bolt 16, the bolt 16 can be taken down, and the detachment of the bolt 16 on the front bearing cover 13 can be completed in the same way.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. A cylinder vane groove type hydraulic pump comprises a pump assembly (1), and is characterized in that: the pump is characterized in that the left side of a front pump cover (12) of the pump assembly (1) and the left side of a front bearing cover (13) in the pump assembly (1) are both provided with a plurality of movable limiting mechanisms (2) in an annular fixed mode, and a limiting plate (25) in each movable limiting mechanism (2) shields a containing groove (15) in the pump assembly (1).

2. The cylinder vane groove type hydraulic pump according to claim 1, wherein: the pump machine assembly (1) comprises an outer barrel (11), a front pump cover (12), a front bearing cover (13), a spline shaft (14), an accommodating groove (15), a bolt (16) and a threaded hole (17).

3. The cylinder vane groove type hydraulic pump according to claim 2, characterized in that: the front pump cover (12) is detachably nested at the left end of the outer cylinder (11), the front bearing cover (13) is detachably nested at the left end of the front pump cover (12), the spline shaft (14) is positioned on the inner side of the front bearing cover (13), a plurality of accommodating grooves (15), a plurality of bolts (16) and a plurality of threaded holes (17) are arranged, the plurality of accommodating grooves (15) are respectively and uniformly arranged on the left side surface of the front pump cover (12) and the left side surface of the front bearing cover (13) in an annular shape, the plurality of bolts (16) are respectively arranged on the front pump cover (12) and the front bearing cover (13) in a sliding and penetrating way, and the nut ends of the bolts (16) are respectively positioned inside the accommodating grooves (15), the threaded holes (17) are respectively annularly and uniformly arranged on the left side surface of the outer cylinder (11) and the left side surface of the front pump cover (12), and the screw ends of the bolts (16) are respectively positioned on the inner sides of the threaded holes (17).

4. A cylinder vane grooved hydraulic pump as claimed in claim 3 wherein: the movable limiting mechanism (2) comprises a fixing rod (21), a torsion spring (22), an end plate (23), a first connecting plate (24), a limiting plate (25), a through hole (26), a second connecting plate (27) and a poke rod (28).

5. The cylinder vane groove type hydraulic pump according to claim 4, wherein: dead lever (21) and preceding pump cover (12) or front bearing lid (13) fixed connection, end plate (23) are fixed to be set up in dead lever (21) left end, torsional spring (22) cup joint from left to right with first connecting plate (24) and set up in dead lever (21) outside, first connecting plate (24) rotate through the bearing and cup joint and set up in dead lever (21) outside, torsional spring (22) left end and end plate (23) fixed connection and torsional spring (22) right-hand member and first connecting plate (24) fixed connection, limiting plate (25) are fixed to be set up in first connecting plate (24) tip, through-hole (26) run through in the horizontal direction and set up on limiting plate (25), second connecting plate (27) are fixed to be set up in limiting plate (25) outside, poker rod (28) are fixed to be set up in second connecting plate (27) left surface.

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