CN209335078U - A kind of rotor pressing sleeve tool - Google Patents

Abstract

The utility model discloses a kind of rotor pressing sleeve tools, including orientation axes (1), last item (2) and pedestal (3), pedestal (3) is equipped with positioning shaft hole (31), locating shaft (4) are equipped in positioning shaft hole (31), the top of locating shaft (4) is equipped with guide pad (5), the top of locating shaft (4) is equipped with coaxial limit shaft (8), limit shaft (8) is matched with the top circumferential surface of rotor (6) inner hole, the upper end of limit shaft (8) extends up through guide pad (5), guide pad (5) is equipped with multiple orientation axis holes (51) around limit shaft (8) arrangement.The utility model has the advantages that safety is higher, will not reduce pump service performance and qualification rate is higher for the assembly of rotor part.

Description

A kind of rotor pressing sleeve tool

Technical field

The utility model belongs to A10V Series Hydraulic plunger pump rotor component tool field more particularly to a kind of rotor pressing sleeve Tooling.

Background technique

As shown in figure 3, the rotor part of A10V Series Hydraulic plunger pump is made of rotor and multiple bushings, rotor has interior Hole, inner hole are up-small and down-big stepped hole, are had on rotor multiple circumferentially distributed around rotor axis and with bushing interference fit Bush hole, when assembly are that bushing is pressed into bush hole by press machine.Existing pressing sleeve mode will be first served as a contrast using Step Shaft Cover the small end in Step Shaft, Step Shaft be placed between press machine and rotor, operator hand steered bushing alignment bushings hole into Row pressing sleeve.Since hand steered bushing there may be inclination, during indentation, it is likely to result in operator's hand and weighs wounded, Safety is lower.Inclined bushing is also easy to scratch the inner wall of bush hole, and the inner wall scraping of bush hole is not easy to send out after going out copper scale It is existing, the bottom of bush hole has been directly born against, has been difficult to be cleaned, the service performance of pump can be reduced.In addition, full when pressing sleeve Bushing is directly pressed onto rotor hole bottom by depended on pressure machine, it cannot be guaranteed that the height of bushing distance from top rotor end-face, is easy to appear The different phenomenon of the liner height being pressed into, so that the qualification rate of pressing sleeve is lower.Therefore, existing pressing sleeve mode is used for rotor portions Part turns with that there are safeties is lower, may reduce pump service performance and the lower defect of qualification rate.

Utility model content

The purpose of the utility model is to provide a kind of rotor pressing sleeve tools.The utility model is used for the dress of rotor part And have the advantages that safety is higher, will not reduce pump service performance and qualification rate it is higher.

The technical solution of the utility model includes: a kind of rotor pressing sleeve tool, including orientation axes, last item and pedestal, set on pedestal There is positioning shaft hole, locating shaft is equipped in positioning shaft hole, the top of locating shaft is equipped with guide pad, and the top of locating shaft is equipped with coaxial Limit shaft, limit shaft are matched with the top circumferential surface of rotor inner hole, and the upper end of limit shaft extends up through guide pad, guide pad It is equipped with multiple orientation axis holes around limit shaft arrangement.

In rotor pressing sleeve tool above-mentioned, the upper end of the orientation axes is equipped with orientation axes boss, and the lower end of orientation axes is equipped with Step surface.

In rotor pressing sleeve tool above-mentioned, the upper end of the last item is equipped with last item boss, and the lower end of last item is equipped with and bushing The identical pin shaft of diameter of bore.

In rotor pressing sleeve tool above-mentioned, the locating shaft is Step Shaft, and the small end of locating shaft mutually agrees with positioning shaft hole, The big end of locating shaft is matched with the lower part circumferential surface of rotor inner hole.

Compared with prior art, the utility model replaces operator to be pressed into rotor to bushing, bushing is buttressed with guide pad When, the hand of operator will not be weighed wounded, and the orientation axis hole of guide pad positions bushing, is being pressed into bushing During remain vertical, bushing will not scratch the inner wall of bush hole during being pressed into, the bottom of bush hole does not have The copper scale generated is scratched, the service performance of pump will not be reduced.In addition, by the height that last item boss is rationally arranged, so that when pressure When bushing is fully pressed into rotor by axis, the upper end of last item boss is flushed with the upper end of limit shaft, at this time the pressing plate and limit of press The upper-end contact of position axis cannot continue to be pressed downward, and ensure that the height of each bushing indentation is consistent, keep the qualification rate of pressing sleeve higher. Therefore, the utility model for rotor part assembly have safety is higher, will not reduce pump service performance and qualification rate compared with High advantage.

Detailed description of the invention

Fig. 1 is the front view under the utility model use state.

Fig. 2 is the top view under the use state of the utility model.

Fig. 3 is the structural schematic diagram of rotor part.

The label in accompanying drawing is: 1- orientation axes, 2- last item, 3- pedestal, 4- locating shaft, 5- guide pad, 6- rotor, 7- lining Set, 8- limit shaft, 11- orientation axes boss, 12- step surface, 21- pin shaft, 22- last item boss, 31- positioning shaft hole, 51- orientation axes Hole.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and examples, but is not intended as to the utility model The foundation of limitation.

Embodiment.A kind of rotor pressing sleeve tool is set on pedestal 3 as shown in Figure 1, including orientation axes 1, last item 2 and pedestal 3 There is positioning shaft hole 31, locating shaft 4 is equipped in positioning shaft hole 31, the top of locating shaft 4 is equipped with guide pad 5, and the top of locating shaft 4 is set There is coaxial limit shaft 8, limit shaft 8 is matched with the top circumferential surface of 6 inner hole of rotor, and the upper end of limit shaft 8 extends up through Guide pad 5, guide pad 5 are equipped with multiple orientation axis holes 51 arranged around limit shaft 8.

The upper end of the orientation axes 1 is equipped with orientation axes boss 11, and the lower end of orientation axes 1 is equipped with step surface 12.

The upper end of the last item 2 is equipped with last item boss 22, and the lower end of last item 2 is equipped with pin identical with 7 diameter of bore of bushing Axis 21.

The locating shaft 4 is Step Shaft, and small end and 31 phase of positioning shaft hole of locating shaft 4 are agreed with, the big end of locating shaft 4 with turn The lower part circumferential surface of sub 6 inner holes matches.

The diameter of the orientation axes boss 11 be greater than orientation axes 1 diameter, be prevent orientation axes 1 from orientation axis hole 51 in Under fall, play block, the diameter of orientation axes 1, the diameter for orienting axis hole 51, last item 26 bushing of diameter and rotor The diameter in hole is identical；The diameter of the step surface 12 is identical as the internal diameter of bushing 7；The last item boss 22 is for extending last item 2 Length, when so that bushing 7 being fully pressed into bush hole by last item 2, the upper end of last item boss 22 and the upper end of limit shaft 8 are neat Flat, the upper-end contact of the pressing plate of press and limit shaft 8 cannot continue to be pressed downward at this time, ensure that the height that each bushing 7 is pressed into Unanimously, make the qualification rate of pressing sleeve higher；The concentricity of the limit shaft 8 and locating shaft 4 is guaranteed by the inner hole of rotor 6.

The use of the utility model, includes the following steps,

A, pedestal 3 is placed on pressure machine platform, and according to the height adjustment stroke of a press of tooling；

B, the lower end of locating shaft 4 is inserted into the positioning shaft hole 31 of pedestal 3；

C, a rotor 6 is taken, after the inner hole that limit shaft 8 is first passed through to rotor 6, then entirety is assemblied on locating shaft 4, is positioned The big end of axis 4 is inserted into the inner hole of rotor 6；

D, by 5 sets of guide pad on limit shaft 8, the lower end surface of guide pad 5 is contacted with the top surface of rotor 6；

E, orientation axes 1 are put into one of orientation axis hole 51, and rotating guide pad 5 makes orientation axes 1 fall in rotor 6 In one of bush hole, to realize the positioning between guide pad 5 and rotor 6, all orientation axis holes 51 on guide pad 5 with All bush holes on rotor 6 co-axially align up and down one by one；

F, re-direct block 5 do not put orientation axes 1 remaining orientation axis hole 51 in one by one downwards place bushing 7, place The upper end of bushing 7 is lower than the upper surface of guide pad 5, and the lower end of the bushing 7 placed is inserted into bush hole, then last item 2 from On pass through one of orientation axis hole 51 down, starting press machine presses last item 2, and last item 2 moves down, and pin shaft 21 is inserted into bushing Be oriented in 7, last item 2 by bushing 7 be pressed into bush hole, when last item 2 be moved to upper end it is concordant with the upper end of limit shaft 8 when, it is complete At the pressing sleeve of a bushing 7, as shown in Figure 1；

G, orientation axes 1 are taken out, put into and carries out second of positioning in orientation axis hole 51 corresponding with the bushing 7 pressed, At this point, the step surface 12 of orientation axes 1 contacts positioning with the inner wall of the bushing 7 pressed, then last bushing 7 is placed into most again In a bush hole afterwards；

H, remaining bushing is pressed into one by one in corresponding bush hole using last item 2 and press machine, completes rotor part Pressing sleeve assembly.

Claims (4)

1. a kind of rotor pressing sleeve tool, it is characterised in that: including orientation axes (1), last item (2) and pedestal (3), pedestal is set on (3) Have positioning shaft hole (31), be equipped with locating shaft (4) in positioning shaft hole (31), the top of locating shaft (4) is equipped with guide pad (5), positioning The top of axis (4) is equipped with coaxial limit shaft (8), and limit shaft (8) is matched with the top circumferential surface of rotor (6) inner hole, limit shaft (8) upper end extends up through guide pad (5), and guide pad (5) is equipped with multiple orientation axis holes around limit shaft (8) arrangement (51)。

2. rotor pressing sleeve tool according to claim 1, it is characterised in that: the upper end of the orientation axes (1) is equipped with orientation The lower end of crown of roll platform (11), orientation axes (1) is equipped with step surface (12).

3. rotor pressing sleeve tool according to claim 1, it is characterised in that: it is convex that the upper end of the last item (2) is equipped with last item The lower end of platform (22), last item (2) is equipped with pin shaft (21) identical with bushing (7) diameter of bore.

4. rotor pressing sleeve tool according to claim 1, it is characterised in that: the locating shaft (4) is Step Shaft, locating shaft (4) small end mutually agrees with positioning shaft hole (31), and the big end of locating shaft (4) is matched with the lower part circumferential surface of rotor (6) inner hole.