CN208651458U - A kind of internal spline connection component of the shrink fit formula for hydraulic motor - Google Patents

Abstract

A kind of internal spline connection component of the shrink fit formula for hydraulic motor, including internal spline shrinking type tapered sleeve and internal taper hole ring flange, internal spline shrinking type tapered sleeve includes the external conical sleeve for having internal spline and the locating flange for being set in external conical sleeve bigger diameter end, the through slot axially through setting is offered on internal spline shrinking type tapered sleeve, through slot extends radially through the external conical sleeve and locating flange positioned at internal spline side, the internal taper hole of internal taper hole ring flange is matched with external conical sleeve, it is offered on locating flange multiple for wearing the through-hole of fastening bolt, threaded hole is offered on internal taper hole ring flange, the central axes of threaded hole with the axis parallel of external conical sleeve, it is contacted with locating flange far from the end face of internal taper hole ring flange by the bolt head of fastening bolt, to drive internal spline shrinking type tapered sleeve to move to internal taper hole ring flange, make external conical sleeve with internal taper hole Aperture reduce and tightened, and collapse through slot as external conical sleeve tightens, so that internal spline be made to tighten and fit closely with splined shaft.

Description

A kind of internal spline connection component of the shrink fit formula for hydraulic motor

Technical field

The utility model relates to spline bindiny mechanism field more particularly to a kind of shrink fit formulas for hydraulic motor Internal spline connection component.

Background technique

Increasingly stringent with the requirement of environmental protection with the development of science and technology, in the equipment such as sweeper, use is more environmentally friendly Hydraulic motor substitute original assistant engine and become sweeper etc. to reduce environmental pollution caused by the discharge of assistant engine The main trend of equipment development；Hydraulic motor transmission can realize revolving speed variable speed, large torque transmitting also may be implemented, and make an uproar Sound is low, is ideal power source, but in hydraulic motor transmission, in order to play the performance of hydraulic motor, it usually needs hydraulic Splined shaft is connected on the output shaft of motor, cooperation transmission is connected by interior external splines；Spline connection has bearing capacity height, centering Property good, can be with transmitting large torque the advantages that, while the transmission performance in order to guarantee spline connection needs external splines in strict control Gap when installation, so size tolerance requirements when spline is processed are stringent, especially for internal spline, for strict guarantee ruler Very little tolerance must use special purpose machine tool, such as gear shapping machine and dedicated tool, such as broaching tool when processing, and use small bite, It is divided into the processing of many knives when processing, just needs to measure size per several knives, then again to knife, by the small cutting output of each knife and not Disconnected to measure size, size needed for Step wise approximation internal spline avoids internal spline processing error, realizes the control to internal spline tolerance System, causes the processing of internal spline not only to need special purpose machine tool cutter, but also time-consuming and laborious, higher cost.

Utility model content

The purpose of this utility model has been to provide a kind of internal spline connection group of shrink fit formula for hydraulic motor Part while not influencing spline connection transmission performance, reduces internal spline size to substitute existing spline connection structure The requirement of tolerance also just reduces the processing request to internal spline, so as to avoid not only needing in existing internal spline processing Special purpose machine tool cutter is used, and it is time-consuming and laborious, the drawbacks of higher cost.

Used technical solution is the utility model to solve above-mentioned technical problem: a kind of tightening for hydraulic motor The internal spline connection component of formula, including internal spline shrinking type tapered sleeve and internal taper hole ring flange, the internal spline shrinking type cone Set include one have internal spline external conical sleeve and a locating flange being set on external conical sleeve bigger diameter end, external conical sleeve and Locating flange is an integral molding structure, and the through slot axially through setting is offered on the internal spline shrinking type tapered sleeve, described Through slot extends radially through the external conical sleeve and locating flange positioned at internal spline side, the internal taper hole and outer cone of the internal taper hole ring flange Set matching, is threaded through external conical sleeve in internal taper hole ring flange, and the conical surface of external conical sleeve is enable to be bonded with internal taper hole, the positioning Multiple through-holes for being used to wear fastening bolt are offered on flange, multiple through-holes are evenly arranged on a circle concentric with external conical sleeve, Multiple threaded holes corresponding with the multiple through-hole, the central axes of the threaded hole are offered on the internal taper hole ring flange With the axis parallel of external conical sleeve, enable fastening bolt when being screwed into threaded hole along external conical sleeve axially adjacent to internal taper hole Ring flange is contacted by the bolt head of fastening bolt with the locating flange far from the end face of internal taper hole ring flange, thus band Dynamic internal spline shrinking type tapered sleeve is moved to internal taper hole ring flange, tightens external conical sleeve as the aperture of internal taper hole reduces, and Collapse the through slot as external conical sleeve tightens, so that the internal spline be made to tighten and fit closely with splined shaft.

Preferably, the central axes of the multiple through-hole with the axis parallel of external conical sleeve.

According to the above technical scheme, the beneficial effects of the utility model are:

A kind of internal spline connection component of shrink fit formula for hydraulic motor provided by the utility model, passes through outer cone Set and internal taper hole cooperation and fastening bolt hold out against effect, along with the through slot opened up on internal spline shrinking type tapered sleeve, make outside When tapered sleeve moves in internal taper hole, it can be tightened as the aperture of internal taper hole reduces, through slot is enable to contract with external conical sleeve It tightly collapses, so that internal spline be made to tighten and fit closely with splined shaft, and by fastening bolt, enables internal taper hole ring flange It is rotated synchronously with internal spline shrinking type tapered sleeve, so that the power for realizing hydraulic motor is connected by spline and transmitted；So this Utility model clamps splined shaft, realizes interior external splines by setting shrinking type for internal spline after tightening eventually by internal spline Cooperation transmission, i.e., the utility model is tightened by internal spline to splined shaft, makes the fitting of interior external splines, and make between interior external splines Gap reaches the requirement that can guarantee spline drived performance, and the connection of existing spline is by the respective processing of external splines in controlling Dimensional tolerance, when the final interior external splines of guarantee is mounted together, the gap of the two is met the requirements, so, because inside and outside guarantee Principle on spline gaps is different, and the utility model compared with existing spline connection structure, is spent inside when processing internal spline In the case that the dimensional discrepancy of key is bigger, between capable of also being tightened by internal spline when being used cooperatively to guarantee that interior external splines is practical Gap, to reduce the requirement of internal spline size tolerance while not influencing spline connection transmission performance, also just reduce To the processing request of internal spline, so can not only increase internal spline processing when using gear shapping machine and broaching tool processing internal spline In bite reduce feed number, can also reduce the number of internal spline in-process measurement, promote processing efficiency；And And because of reduction to processing request, can also be changed to without using special purpose machine tools cutters such as gear shapping machine and broaching tools using wire cutting Internal spline is processed, although linear cutter precision is lower, processing efficiency is high, and original internal spline is because of requirement on machining accuracy And it is not available linear cutter, and the internal spline in the utility model is also able to satisfy requirement with linear cutter, thus Linear cutter internal spline is realized, without using special purpose machine tool cutter, reduces internal spline processing cost, and time saving province Power；

The internal spline connection component of a kind of shrink fit formula for hydraulic motor provided by the utility model, in positioning mode It is equipped with multiple fastening bolts vertical with internal taper hole ring flange on orchid, enables fastening bolt along external conical sleeve axially adjacent to interior Taper hole ring flange, and drive internal spline shrinking type tapered sleeve to move to internal taper hole ring flange using fastening bolt head, structure is simple And it is low in cost, easy to operate, multiple fastening bolts are evenly arranged on a circle concentric with external conical sleeve, make external conical sleeve and internal taper hole Between can stress equalization, be not only convenient for external conical sleeve and moved in internal taper hole, prevent external conical sleeve stuck in internal taper hole, can also have Effect avoids scratching between external conical sleeve and internal taper hole, promotes the service life of spline connection, guarantees the efficiency of transmission.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the schematic front view of the utility model；

Fig. 3 is the schematic side view of the utility model；

Fig. 4 is structural schematic diagram of the utility model along through slot center section view；

Fig. 5 is schematic side view of the utility model along through slot center section view；

Fig. 6 is the structural schematic diagram of internal spline shrinking type tapered sleeve；

Fig. 7 is the schematic front view of internal spline shrinking type tapered sleeve；

Fig. 8 is the schematic top plan view of internal spline shrinking type tapered sleeve；

Fig. 9 is the structural schematic diagram of internal taper hole ring flange.

Marked in the figure: 1, internal spline shrinking type tapered sleeve, 2, internal spline, 3, external conical sleeve, 4, locating flange, 5, through slot, 6, logical Hole, 7, internal taper hole ring flange, 8, threaded hole, 9, fastening bolt.

Specific embodiment

Referring to attached drawing, specific embodiment is as follows:

A kind of internal spline connection component of the shrink fit formula for hydraulic motor, including 1 He of internal spline shrinking type tapered sleeve Internal taper hole ring flange 7, the internal spline shrinking type tapered sleeve 1 include that the external conical sleeve 3 for having internal spline 2 and one are arranged Locating flange 4 on 3 bigger diameter end of external conical sleeve, external conical sleeve 3 and locating flange 4 are an integral molding structure, and the internal spline tightens The through slot 5 axially through setting is offered on formula tapered sleeve 1, the through slot 5 extends radially through the outer cone positioned at 2 side of internal spline Set 3 and locating flange 4, the internal taper hole of the internal taper hole ring flange 7 are matched with external conical sleeve 3, and external conical sleeve 3 is made to be threaded through internal taper hole method In blue disk 7, and the conical surface of external conical sleeve 3 is enable to be bonded with internal taper hole, is offered on the locating flange 4 multiple tight for wearing The through-hole 6 of fixing bolt 9, multiple through-holes 6 are evenly arranged on a circle concentric with external conical sleeve 3, and the central axes of multiple through-holes 6 are and outside The axis parallel of tapered sleeve 3 offers multiple screw threads corresponding with the multiple through-hole 6 on the internal taper hole ring flange 7 Hole 8, axis parallel of the central axes of the threaded hole 8 with external conical sleeve 3, when fastening bolt 9 being enable to be screwed into threaded hole 8 It is separate by the bolt head and the locating flange 4 of fastening bolt 9 enough along external conical sleeve 3 axially adjacent to internal taper hole ring flange 7 The end face of internal taper hole ring flange 7 contacts, so that internal spline shrinking type tapered sleeve 1 be driven to move to internal taper hole ring flange 7, makes external conical sleeve 3 are tightened as the aperture of internal taper hole reduces, and collapse through slot 5 as external conical sleeve 3 tightens, so that internal spline 2 be made to contract It fits closely tightly and with splined shaft.

Claims (2)

1. a kind of internal spline connection component of the shrink fit formula for hydraulic motor, it is characterised in that: tightened including internal spline Formula tapered sleeve (1) and internal taper hole ring flange (7), the internal spline shrinking type tapered sleeve (1) include the outer cone for having internal spline (2) (3) and a locating flange (4) being set on external conical sleeve (3) bigger diameter end are covered, external conical sleeve (3) and locating flange (4) are one Forming structure offers the through slot (5) axially through setting, the through slot (5) on the internal spline shrinking type tapered sleeve (1) Extend radially through the external conical sleeve (3) and locating flange (4) positioned at internal spline (2) side, the inner cone of the internal taper hole ring flange (7) Hole is matched with external conical sleeve (3), is threaded through external conical sleeve (3) in internal taper hole ring flange (7), and enable the conical surface of external conical sleeve (3) It is bonded, is offered on the locating flange (4) multiple for wearing the through-hole (6) of fastening bolt (9), multiple through-holes with internal taper hole (6) be evenly arranged on a circle concentric with external conical sleeve (3), offered on the internal taper hole ring flange (7) it is multiple with it is the multiple The corresponding threaded hole (8) of through-hole (6), axis parallel of the central axes of the threaded hole (8) with external conical sleeve (3), makes Fastening bolt (9) can be along external conical sleeve (3) axially adjacent to internal taper hole ring flange (7), by tight when being screwed into threaded hole (8) The bolt head of fixing bolt (9) is contacted with the locating flange (4) far from the end face of internal taper hole ring flange (7), thus in driving Spline shrinking type tapered sleeve (1) is moved to internal taper hole ring flange (7), and external conical sleeve (3) is made to be contracted as the aperture of internal taper hole reduces Tightly, and collapse the through slot (5) as external conical sleeve (3) tightens, so that the internal spline (2) be made to tighten and tight with splined shaft Closely connected conjunction.

2. a kind of internal spline connection component of shrink fit formula for hydraulic motor according to claim 1, feature It is: axis parallel of the central axes of the multiple through-hole (6) with external conical sleeve (3).