CN208764247U - A kind of hydraulic motor-driven grass trimmer gear-box - Google Patents

Abstract

The utility model relates to machinery equipment field, especially a kind of hydraulic motor-driven grass trimmer gear-box, gear housing including a hollow setting, the horizontal segment end and vertical section end of the gear housing pass through the first fastener respectively, the connected gear box input lid of second fastener and a positioning end cap, a gearbox input shaft is equipped in the cavity inside gear box input lid, the outer end of the gearbox input shaft and the output shaft of hydraulic motor pass through key, keyway matches, in the inner end of gearbox input shaft and the input gear that is connected on the lateral wall of gearbox input shaft of middle section corresponding position, a gear shaft is equipped in the cavity of positioning cover internal, the gear shaft is meshed by the bevel gear of its end with the input gear.Increase the power resources that grass trimmer provides, change the connection type of former grass trimmer connection transmission shaft, hydraulic motor is directly inputted into axis connection with grass trimmer, increases the stability of grass trimmer.

Description

A kind of hydraulic motor-driven grass trimmer gear-box

Technical field

The utility model relates to machinery equipment field, especially a kind of hydraulic motor-driven grass trimmer gear-box.

Background technique

Grass trimmer is also known as weeder, grass mower, lawn mower etc..Grass trimmer be it is a kind of for cutting the grass on a lawn, vegetation etc. Machine tool, it is made of cutterhead, engine, traveling wheel, walking mechanism, blade, handrail, control section.Mowing owner Want to be divided into: hand-held hay mower drags power mower.For dragging power mower, mostly uses greatly drag at present Machine drawing is dragged, and by the subsequent PTO shaft universal-joint transmission shaft of tractor, transfers power to subsequent grass trimmer tooth Roller box.To complete the trimming work on lawn, such gearbox drive needs to be placed on behind power, so that grass trimmer It can only use behind tractor, can only be dragged by tractor, power resources are relatively single while existing when use The connection type of grass trimmer gear-box makes grass trimmer, and transmission efficiency is relatively low at work, there is transmission during transmission The problems such as noise is big, transmission stability is poor.

Utility model content

The utility model one of to solve above-mentioned technical problem used by technical solution be: a kind of hydraulic motor-driven Grass trimmer gear-box, the gear housing including a hollow setting, the horizontal segment end of the gear housing and vertical section end part Not Tong Guo the first fastener, the second fastener be connected a gear box input lid with one position end cap, in gear box input lid A gearbox input shaft is equipped in internal cavity, the outer end of the gearbox input shaft and the output shaft of hydraulic motor pass through Key, keyway match, and card is set respectively in the cavity of the gear housing of the inner end and middle section corresponding position of gearbox input shaft There is first bearing, the second bearing matched with gearbox input shaft, connected one is defeated on the lateral wall of gearbox input shaft Enter gear, be equipped with a gear shaft in the cavity of positioning cover internal, the gear shaft by the bevel gear of its end with it is described Input gear is meshed, be arranged with respectively in the cavity of the gear housing of the inner end and middle section corresponding position of gear shaft one with 3rd bearing that gear shaft matches, fourth bearing, connect a taper spline housing, the cone on the outer end lateral wall of gear shaft It spends spline housing and external cutterhead welds, a locating part is equipped on the gear shaft on the outside of taper spline housing, in 3rd bearing and the Gear shaft outer sheath between four bearings is equipped with a spacer, the upper and lower ends of the spacer respectively with 3rd bearing fourth bearing phase It abuts, in the groove body for the inner cavity for being connected to gear housing on the outside of the spacer, it is logical that one first is equipped at intervals on gear housing It is close to be equipped with one first on the gearbox input shaft lateral wall of gear box input lid outer end for gas component, the second ventilation member The inner sidewall of seal, the first sealing ring lateral wall and gear box input lid abuts against, the tooth in positioning end cap outer end Wheel shaft lateral wall is equipped with one second sealing ring, and the inner sidewall of the second sealing ring lateral wall and positioning end cap abuts against.

The shape of the end profile of the gear box input lid is one of diamond shape, rectangle or circle, and with it is hydraulic The end face of motor matches.

The key is one of flat key, rectangular spline, involute spline, and is matched with the output shaft of hydraulic motor.

One first hole retaining ring, first hole retaining ring are equipped on the intracavity sidewall of the gear-box of input gear rear end Front/rear end abutted against respectively with input gear, second bearing end face.

Be equipped with one first shaft block ring on the gearbox input shaft on the inside of input gear, first shaft block ring it is outer The inner face of end face and input gear abuts against.

First fastener includes one for fastening the first screw of gear box input lid, in gear housing and gear It is equipped with a first adjustment pad being set on the outside of the first screw between case input end cap, the first of gear box input outer side of lid One first spring washer is arranged on screw lateral wall.

Second fastener includes two for fastening the second screws of end cap, gear housing and positioning end cap it Between be equipped with one and be set in second adjustment pad on the outside of the second screw, be arranged on the second screw lateral wall of positioning end outer side of lid One second spring washer.

The locating part includes an attaching nut being set on gear shaft lateral wall, and the attaching nut passes through limit pad It encloses and offsets with the outer end face of the taper spline housing, the outer end of the attaching nut is matched by split pin with gear shaft.

One second shaft block ring is equipped on the gear shaft lateral wall of spacer inner end.

First ventilation member includes first plug cock being inserted on first vent valve on gear housing top, One plug cock and gear housing contact site are equipped with one first combination mat；Second ventilation member includes on one and gear housing The second plug cock that orifice matches is equipped with one second combination mat in the second plug cock and gear housing contact site.

Beneficial effect possessed by the utility model is:

1) grass trimmer, is expanded to the range of power resources；It can be mentioned using typically now engineering machinery and dynamic power machine Grass trimmer gear-box is connected to hydraulic motor for hydraulic power, increases the power resources that grass trimmer provides.

2) hydraulic motor is directly inputted axis connection with grass trimmer by the connection type for, changing former grass trimmer connection transmission shaft, Connection transmission shaft is saved, drive mechanism simplifies, and reduces the universal drive shaft that former transmission needs, increases the stabilization of grass trimmer Property, reduce transmitting noise.

3), due to reducing the use of transmission shaft, the production cost of grass trimmer is reduced.

4), this practical gear-box provides power, and change grass trimmer uses position, before being both placed on dragging power Face can also be placed on behind dragging power.

5), the input speed of this grass trimmer gear-box is no longer constrained by the output revolving speed of dragging power, passes through hydraulic motor Stepless speed regulation may be implemented.

Detailed description of the invention

Fig. 1 is the schematic cross-sectional view of the utility model.

In figure, 1, gearbox input shaft；2, second bearing；3, the first hole retaining ring；4, gear box input lid；5, first Screw；6, the first spring washer；7, the first adjustment pad；8, input gear；9, the first shaft block ring；10, gear housing；11, One combination mat；12, the first plug cock；13, first bearing；14, the second plug cock；15, the second combination mat；16, gear shaft；17, third Bearing；18, the second shaft block ring；19, spacer；20, the second screw；21, fourth bearing；22, second spring washer；23, it positions End cap；24, the first sealing ring；25, taper spline housing；26, limiting gasket；27, attaching nut；28, split pin；29, second is close Seal；30, second adjustment pad.

Specific embodiment

In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality It is described in detail with novel.

As shown in fig. 1, a kind of hydraulic motor-driven grass trimmer gear-box, the gear housing including a hollow setting 10, the horizontal segment end and vertical section end of the gear housing 10 pass through the first fastener, the second fastener connected one respectively Gear box input lid 4 and a positioning end cap 23, are equipped with a gearbox input shaft in the cavity inside gear box input lid 4 1, the outer end of the gearbox input shaft 1 is matched with the output shaft of hydraulic motor by key, keyway, uses typically now engineering Machinery can provide hydraulic power with dynamic power machine and connect grass trimmer gear-box to hydraulic motor, increase the power that grass trimmer provides Hydraulic motor is directly inputted axis connection with grass trimmer in addition, changing the connection type of former grass trimmer connection transmission shaft by source, Connection transmission shaft is saved, drive mechanism simplifies, and reduces the universal drive shaft that former transmission needs, increases the stabilization of grass trimmer Property, transmitting noise is reduced, the use of transmission shaft is reduced, reduces the production cost of grass trimmer；It is connected by hydraulic motor, The input speed of this grass trimmer gear-box is no longer constrained by the output revolving speed of dragging power, may be implemented by hydraulic motor stepless Speed regulation.Be arranged with respectively in the cavity of the gear housing 10 of the inner end and middle section corresponding position of gearbox input shaft 1 one with First bearing 13 that gearbox input shaft 1 matches, second bearing 2, be connected an input on the lateral wall of gearbox input shaft 1 Gear 8, is equipped with a gear shaft 16 in the cavity inside positioning end cap 23, the gear shaft 16 by the bevel gear of its end and The input gear 8 is meshed, in the cavity of the gear housing 10 of the inner end and middle section corresponding position of gear shaft 16 respectively It is arranged with 3rd bearing 17, the fourth bearing 21 matched with gear shaft 16, is connected on the outer end lateral wall of gear shaft 16 One taper spline housing 25, the taper spline housing 25 are welded with external cutterhead, on the gear shaft 16 in 25 outside of taper spline housing Equipped with a locating part, 16 outer sheath of gear shaft between 3rd bearing 17 and fourth bearing 21 is equipped with a spacer 19, it is described every The upper and lower ends of set 19 are abutted against with 17 fourth bearing 21 of 3rd bearing respectively, and the outside of the spacer 19 is connected to gear housing In the groove body of 10 inner cavity, one first ventilation member, the second ventilation member are equipped at intervals on gear housing 10, it is defeated in gear-box 1 lateral wall of gearbox input shaft for entering 4 outer end of end cap is equipped with one first sealing ring 24,24 lateral wall of the first sealing ring It is abutted against with the inner sidewall of gear box input lid 4, one the is equipped on 16 lateral wall of gear shaft of positioning 23 outer end of end cap The inner sidewall of two sealing rings 29,29 lateral wall of the second sealing ring and positioning end cap 23 abuts against.

The shape of the end profile of the gear box input lid 4 is one of diamond shape, rectangle or circle, and with it is hydraulic The end face of motor matches；The type of the hydraulic motor connected as needed or the difference of type can choose different end faces and cut The gear box input lid 4 of face shape carries out matching connection, good so as to matching, versatile.

The key is one of flat key, rectangular spline, involute spline, and is matched with the output shaft of hydraulic motor；Key Concrete type selection be also according to the type of the hydraulic motor specifically connected carry out suitability selection connection type, from And guarantee versatility when connection.

One first hole retaining ring 3, the first hole gear are equipped on the intracavity sidewall of the gear-box of 8 rear end of input gear The front/rear end of circle 3 is abutted against with input gear 8,2 end face of second bearing respectively；By the way that the first hole is arranged with retaining ring 3 and first Shaft block ring 9 can make gearbox input shaft 1 and the new property of the stabilization of input gear 8 in the running inside gear-box.

One first shaft block ring 9, first shaft block ring 9 are equipped on the gearbox input shaft 1 of 8 inside of input gear The inner face of outer end face and input gear 8 abut against.

First fastener includes one for fastening the first screw 5 of gear box input lid 4, gear housing 10 with A first adjustment pad 7 for being set in 5 outside of the first screw is equipped between gear box input lid 4, outside gear box input lid 4 One first spring washer 6 is arranged on 5 lateral wall of the first screw of side；Guarantee that gear box input lid 4 and gear housing 10 connect Fastness when connecing.

Second fastener includes two for fastening the second screw 20 of end cap 23, in gear housing 10 and positioning A second adjustment pad 30 for being set in 20 outside of the second screw, the second screw in 23 outside of positioning end cap are equipped between end cap 23 It is arranged with a second spring washer 22 on 20 lateral walls, guarantees fastness when positioning end cap 23 is connect with gear housing 10.

The locating part includes an attaching nut 27 being set on 16 lateral wall of gear shaft, and the attaching nut 27 passes through Limiting gasket 26 and the outer end face of the taper spline housing 25 offset, the outer end of the attaching nut 27 by split pin 28 with Gear shaft 16 matches, and preferably limit fastening can be carried out to taper spline housing 25 by locating part, to guarantee that the later period sets The operation stable with cutter of taper spline housing 25 when received shipment turns.

It is equipped with one second shaft block ring 18 on 16 lateral wall of gear shaft of 19 inner end of spacer, good abutting can be played Positioning action.

First ventilation member includes the first plug cock 12 on first vent valve for being inserted into 10 top of gear housing, One first combination mat 11 is equipped with 10 contact site of gear housing in the first plug cock 12；Second ventilation member includes one and tooth The second plug cock 14 that orifice on wheel cabinet 10 matches is equipped with one second with 10 contact site of gear housing in the second plug cock 14 Combination mat 15；It can be opened it when needed by the first plug cock 12 of setting, the second plug cock 14, it is related convenient for internally addition Lubricating oil.

When work, the output shaft of the hydraulic motor of input terminal is connected by key, keyway with gearbox input shaft 1, output end Taper spline housing 25 is welded on cutterhead, is then fitted on gear shaft 16, starting device, by gearbox input shaft 1, defeated Enter gear 8, the transmission effect of gear shaft 16 can be operated with cutter, to realize work.The structure of this gear-box designs, Grass trimmer is expanded to the range of power resources；Using typically now engineering machinery and dynamic power machine can provide hydraulic power to Hydraulic motor connects grass trimmer gear-box, increases the power resources that grass trimmer provides；Change the company of former grass trimmer connection transmission shaft Mode is connect, hydraulic motor is directly inputted into axis connection with grass trimmer, saves connection transmission shaft, drive mechanism simplifies, and reduces original It is driven the universal drive shaft needed, the stability of grass trimmer is increased, reduces transmitting noise；Due to reducing making for transmission shaft With reducing the production cost of grass trimmer；This practical gear-box provides power, and change grass trimmer uses position, both may be used To be placed on before dragging power, can also be placed on behind dragging power；The input speed of this grass trimmer gear-box is no longer dragged The output revolving speed of power constrains, and stepless speed regulation may be implemented by hydraulic motor.

Above-mentioned specific embodiment cannot function as the limitation to scope of protection of the utility model, for the skill of the art For art personnel, any alternate modification or transformation made to the utility model embodiment all fall within the guarantor of the utility model It protects in range.

Place is not described in detail for the utility model, is the well-known technique of those skilled in the art of the present technique.

Claims (10)

1. a kind of hydraulic motor-driven grass trimmer gear-box, it is characterised in that: the gear housing including a hollow setting, it is described Gear-box input that the horizontal segment end and vertical section end of gear housing pass through the first fastener respectively, the second fastener is connected End cap and a positioning end cap, are equipped with a gearbox input shaft, the gear-box is defeated in the cavity inside gear box input lid The outer end for entering axis is matched with the output shaft of hydraulic motor by key, keyway, corresponding in the inner end of gearbox input shaft and middle section First bearing, the second bearing matched with gearbox input shaft is arranged in the cavity of gear housing at position respectively, Be connected an input gear on the lateral wall of gearbox input shaft, and a gear shaft, institute are equipped in the cavity of positioning cover internal It states gear shaft to be meshed by the bevel gear of its end with the input gear, in the inner end and middle section corresponding position of gear shaft Gear housing cavity in be arranged with 3rd bearing, the fourth bearing matched with gear shaft respectively, in the outer of gear shaft A taper spline housing is connected on the lateral wall of end, the taper spline housing and external cutterhead weld, the tooth on the outside of taper spline housing Wheel shaft is equipped with a locating part, and the gear shaft outer sheath between 3rd bearing and fourth bearing is equipped with a spacer, the spacer Upper and lower ends abutted against respectively with 3rd bearing fourth bearing, the slot of the inner cavity of gear housing is connected on the outside of the spacer In vivo, one first ventilation member, the second ventilation member are equipped at intervals on gear housing, in gear box input lid outer end Gearbox input shaft lateral wall is equipped with one first sealing ring, and the first sealing ring lateral wall is interior with gear box input lid Side wall abuts against, and one second sealing ring is equipped on the gear shaft lateral wall of positioning end cap outer end, outside second sealing ring The inner sidewall of side wall and positioning end cap abuts against.

2. a kind of hydraulic motor-driven grass trimmer gear-box according to claim 1, it is characterised in that: the gear-box The shape for inputting the end profile of end cap is one of diamond shape, rectangle or circle, and is matched with the end face of hydraulic motor.

3. a kind of hydraulic motor-driven grass trimmer gear-box according to claim 1, it is characterised in that: the key is flat One of key, rectangular spline, involute spline, and matched with the output shaft of hydraulic motor.

4. a kind of hydraulic motor-driven grass trimmer gear-box according to claim 1, it is characterised in that: in input gear The intracavity sidewall of the gear-box of rear end be equipped with one first hole retaining ring, the front/rear end of first hole retaining ring respectively with it is defeated Enter gear, second bearing end face abuts against.

5. a kind of hydraulic motor-driven grass trimmer gear-box according to claim 1, it is characterised in that: in input gear The gearbox input shaft of inside is equipped with one first shaft block ring, the outer end face of first shaft block ring and input gear it is interior End face abuts against.

6. a kind of hydraulic motor-driven grass trimmer gear-box according to claim 1, it is characterised in that: described first is tight Firmware includes one for fastening the first screw of gear box input lid, is equipped between gear housing and gear box input lid One is set in the first adjustment pad on the outside of the first screw, is arranged on the first screw lateral wall of gear box input outer side of lid One first spring washer.

7. a kind of hydraulic motor-driven grass trimmer gear-box according to claim 1, it is characterised in that: described second is tight Firmware includes two for fastening the second screw of end cap, and one is equipped between gear housing and positioning end cap and is set in second Second adjustment pad on the outside of screw is arranged with a second spring washer on the second screw lateral wall of positioning end outer side of lid.

8. a kind of hydraulic motor-driven grass trimmer gear-box according to claim 1, it is characterised in that: the locating part It is set in attaching nut on gear shaft lateral wall including one, the attaching nut passes through limiting gasket and the taper spline housing Outer end face offset, the outer end of the attaching nut is matched by split pin with gear shaft.

9. a kind of hydraulic motor-driven grass trimmer gear-box according to claim 1, it is characterised in that: in spacer inner end Gear shaft lateral wall be equipped with one second shaft block ring.

10. a kind of hydraulic motor-driven grass trimmer gear-box according to claim 1, it is characterised in that: described first Ventilation member includes first plug cock being inserted on first vent valve on gear housing top, in the first plug cock and gear housing Contact site is equipped with one first combination mat；Second ventilation member include one matched with the orifice on gear housing second Plug cock is equipped with one second combination mat in the second plug cock and gear housing contact site.