CN202048159U - Hydraulic transmission equipped with pump mechanism for 2-3.5 ton hydraulic forklift - Google Patents

Hydraulic transmission equipped with pump mechanism for 2-3.5 ton hydraulic forklift Download PDF

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Publication number
CN202048159U
CN202048159U CN2011201491943U CN201120149194U CN202048159U CN 202048159 U CN202048159 U CN 202048159U CN 2011201491943 U CN2011201491943 U CN 2011201491943U CN 201120149194 U CN201120149194 U CN 201120149194U CN 202048159 U CN202048159 U CN 202048159U
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China
Prior art keywords
transmission shaft
gear
pump
clutch
working
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Expired - Lifetime
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CN2011201491943U
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Chinese (zh)
Inventor
刘宗其
刘兵
周齐齐
刘海林
葛琳莉
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Anhui Heli Co Ltd
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Anhui Heli Co Ltd
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Abstract

The utility model relates to a hydraulic transmission equipped with a pump mechanism for 2-3.5 ton hydraulic forklifts. One side of the upper part of a transmission housing is equipped with a lubricating pump transmission shaft and the overhanging end of the lubricating pump transmission shaft is equipped with a lubricating pump equipped with a lubricating pump transmission gear A. The other side of the upper part of the transmission housing is equipped with a hollow working pump transmission shaft tube. A forward gear clutch and a forward gear of a lubricating pump drive gear B are successively fixed on one side of the working pump transmission shaft tube and the forward gear clutch is equipped with a forward gear clutch housing gear. An oil feed pump and a hydrodynamic torque converter are arranged on the other side of the working pump transmission shaft tube. A working pump transmission shaft is arranged inside the working pump transmission shaft tube. The outer end part of the working pump transmission shaft is connected with a working pump. A backward gear clutch shaft is arranged below the working pump transmission shaft tube. A backward gear clutch and a backward gear are successively arranged on the backward gear clutch shaft. The housing of the backward gear clutch is equipped with a clutch housing gear. A transmission shaft equipped with an output gear is arranged below the lubricating pump transmission shaft. The hydraulic transmission of the utility model is provided with two power output ports, a working pump and a lubricating pump. By utilizing the hydraulic transmission, a whole vehicle is more convenient in matching with a wet type braking drive axle.

Description

2~3.5t hydraulic fork lift torque converter with band pump mechanism
Technical field
The utility model belongs to the forklift speed variator technical field, is specifically related to 2~3.5t hydraulic fork lift speed changer.
Background technique
At present, domestic 2~3.5t hydraulic fork lift all adopts motor directly to drag directly band working pump of working pump or motor itself, torque converter will export ransaxle to from the power of motor and fluid torque converter joint work by a pair of spiral bevel gear transmission, be rigidly connected by bolt between torque converter and the ransaxle, mainly there is following defective in this structure: 1, torque converter self is not with working pump, vibrate the big pump work instability that makes when directly the band pump structure all exists because of engine start and idling by motor direct driving pump or motor itself, life-span is short, and make its cost higher owing to increased the transition connection set, installation and maintenance difficult etc.; 2, do not carry out vibration isolation between torque converter and the ransaxle and handle, motor self vibration and pavement behavior are bigger to the influence of vibration of car load, be difficult to adopt an effective measure car load is carried out damping noise reduction; When 3, the torque converter inner components being maintained, can't separately speed changer be taken out from car load, must earlier whole drive system be separated from car, speed changer could be disassembled then, maintenance is extremely inconvenient.
Summary of the invention
Problem such as can't pull down when not being with working pump, speed changer maintenance for the speed changer self that solves existing 2~3.5t hydraulic fork lift from the car load separately, the utility model provides a kind of 2~3.5t hydraulic fork lift torque converter with band pump mechanism.
The technical solution that realizes above-mentioned purpose is as follows:
2~3.5t hydraulic fork lift with band pump mechanism comprises casing 1, the forward gear clutch 10 of speed changer with torque converter and retreats retaining clutch 20; Described forward gear clutch 10 comprises front case, is provided with secondary piston 29, preceding partition 9 and the front friction plate more than two more than two in the front case; Retreat retaining clutch 20 and comprise rear case, be provided with back piston 15, the back partition 21 more than two and the back friction plate more than two in the rear case;
Described casing 1 top one side is provided with lubricant pump transmission shaft 5 by bearing, and an end of lubricant pump transmission shaft 5 extends casing 1 outside, and the overhanging end of lubricant pump transmission shaft 5 is provided with lubricant pump 2, and lubricant pump transmission shaft 5 is provided with lubricant pump driving gear A6;
Described casing 1 top opposite side is provided with working pump transmission shaft tube 12 by bearing, working pump transmission shaft tube 12 is a hollow shaft, be fixed with successively on the one side lubricant pump driving gear B7 forward gear clutch 10, be provided with forward gear gear 11 by bearing, the front case outside of described forward gear clutch 10 is provided with forward gear clutch housing gear 8, lubricant pump driving gear B7 and lubricant pump driving gear A6 engagement; Working pump transmission shaft tube 12 opposite sides are provided with oil feed pump 16 and fluid torque converter 13; Working pump transmission shaft 17 is positioned at working pump transmission shaft tube 12, working pump transmission shaft 17 two ends are involute splines, left end and engagement cover 23 splined, right-hand member is inserted in the input guide bracket splined hole of fluid torque converter, and working pump transmission shaft 17 is provided with the axle sleeve 27 and second needle bearing 28; The end of the working pump transmission shaft 17 corresponding with engagement cover 23 is connecting working pump 3, and working pump 3 is positioned at casing 1 outside;
On the casing 1 of described working pump transmission shaft tube 12 belows by bearing be provided with retreat the retaining clutch shaft 24, the described retaining clutch shaft 24 that retreats is provided with and retreats retaining clutch 20 and retreat retaining gear 18, and the rear case outside that retreats retaining clutch 20 is provided with and retreats retaining clutch housing gear 22; Retreat retaining clutch housing gear 22 and forward gear clutch gear 8 and be normal engagement;
The casing 1 of described lubricant pump transmission shaft 5 belows is provided with transmission shaft 4, and described transmission shaft 4 is provided with output gear 19, and described output gear 19 is normal engagement with retreating retaining gear 18; Forward gear gear 11 is normal engagement with output gear 19.
Bearing on the described working pump transmission shaft 17 is a needle bearing.
Spend strong cover before coaxial being provided with of described forward gear gear 11 1 sides, spend strong cover to stretch in the front case of forward gear clutch 10 before described, described front friction plate more than two is set in spends strong putting before described.
Describedly spend strong cover after retreating retaining gear 18 1 sides coaxial being provided with, spend strong cover to stretch in the rear case that retreats retaining clutch 20 after described, described back friction plate more than two is set in spends strong putting after described.
Be respectively equipped with damper mechanism on the casing 1 of described transmission shaft 4 both sides, described damper mechanism comprises the ingot axle, is arranged with eccentric rubber pad on the described ingot axle, and described eccentric rubber pad outer cover is provided with outer rim; Described ingot axle two ends are connecting support respectively, and described support is fixed on the casing.
The utility model is compared with prior art products and is had the advantage of following aspect:
1, the utility model speed changer has two power delivery outlets (PTO), can be with working pump and lubricant pump simultaneously, for car load power type selecting with join the wet braking ransaxle and offer convenience.
2, flexibly connect together by Rubber shock-absorbing pad between speed changer and the ransaxle, can reduce the car load vibration, handling comfort is improved.According to the 98/37/EC of European Union instruction, the whole body vibration value less than
Figure 2011201491943100002DEST_PATH_IMAGE001
, reduce about 60~70% than existing product car load vibration values.
3, easy to maintenance: when speed changer is keeped in repair, can independently pull down speed changer, and not relate to the dismounting of ransaxle and motor, easy to maintenance.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is a forward gear wet type shift clutch structural representation.
Fig. 4 is a forward gear input shaft structural representation.
Fig. 5 retreats retaining wet type shift clutch structural representation.
Fig. 6 retreats retaining input shaft structural representation.
Fig. 7 is the plan view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done to describe further by embodiment:
Embodiment:
Referring to Fig. 1, Fig. 2,2~3.5t hydraulic fork lift with band pump mechanism comprises the casing 1 of speed changer with torque converter, casing 1 top one side has lubricant pump transmission shaft 5 by Bearing Installation, one end of lubricant pump transmission shaft 5 extends casing 1 outside, lubricant pump 2 is installed on the overhanging end of lubricant pump transmission shaft 5, is installed with lubricant pump driving gear A6 on the lubricant pump transmission shaft 5.Casing 1 top opposite side has working pump transmission shaft tube 12 by Bearing Installation; Be welded to connect the front case of lubricant pump driving gear B7 and forward gear clutch 10 on working pump transmission shaft tube 12 1 sides successively, by first needle bearing 26 forward gear gear 11 is installed, the front case outside of forward gear clutch 10 is provided with forward gear clutch housing gear 8, lubricant pump driving gear B7 and lubricant pump driving gear A6 engagement; Oil feed pump 16 and fluid torque converter 13 are installed on working pump transmission shaft tube 12 opposite sides; Working pump transmission shaft 17 is positioned at working pump transmission shaft tube 12, involute splines all is processed at working pump transmission shaft 17 two ends, left end and engagement cover 23 splined, right-hand member is inserted in the input guide bracket splined hole of fluid torque converter, working pump transmission shaft 17 is by axle sleeve 27 and second needle bearing, 28 location, see Fig. 3, in working pump transmission shaft tube 12, can freely rotate.The end of the working pump transmission shaft 17 corresponding with engagement cover 23 is connecting working pump 3, and working pump 3 is positioned at casing 1 outside.
Forward gear clutch 10 comprises front case, sees Fig. 3, and secondary piston 29, preceding partition 9 and the front friction plate more than two more than two are housed in the front case; Spent strong cover before coaxial connection of forward gear gear 11 1 sides, spend strong cover to stretch in the forward gear clutch housing gear 8 before described, before being set in, spends front friction plate more than two strong putting, described forward gear clutch housing gear 8 circumferencial directions are provided with plural square groove, preceding partition 9 more than two is located in the forward gear clutch housing gear 8, locatees by square groove.
Retreat retaining clutch shaft 24 by Bearing Installation on the casing 1 of working pump transmission shaft tube 12 belows, the described retaining that retreats is provided with successively on the clutch shaft 24 and retreats retaining clutch 20 and retreat retaining gear 18, and the rear case outside that retreats retaining clutch 20 is provided with and retreats retaining clutch housing gear 22; Retreat retaining clutch housing gear 22 and forward gear clutch gear 8 and be normal engagement.
Retreat retaining clutch 20 and comprise the rear case that is welded to connect, see Fig. 5, back piston 15, the back partition 21 more than two and the back friction plate more than two are housed in the rear case; Retreat retaining gear 18 1 sides and spend strong cover after coaxial the connection, after spend strong cover to stretch in the back piston, after being set in, spends back friction plate more than two strong putting, described retaining clutch housing gear 22 circumferencial directions that retreat are provided with plural square groove, back partition 21 more than two is located at and retreats in the retaining clutch housing gear 22, locatees by square groove.
On the casing 1 of lubricant pump transmission shaft 5 belows transmission shaft 4 is installed, output gear 19 is housed on the transmission shaft 4, output gear 19 is normal engagement with retreating retaining gear 18; Forward gear gear 11 is normal engagement with output gear 19, sees Fig. 2.
The power transmission line of torque converter of the present utility model is:
1, realize forward gear: power is by 12 inputs of working pump transmission shaft tube, and the engagement driving of joint, forward gear gear 11 and output gear 19 by the forward gear clutch is by transmission shaft 4 outputs;
2, realize retreating retaining: power is by 12 inputs of working pump transmission shaft tube, by forward gear clutch housing gear 8 and retreat retaining clutch housing gear 22 engagement, retreat the retaining clutch joint, retreat the engagement driving of retaining gear 18 and output gear 19, by transmission shaft 4 outputs;
When 3, working pump was worked: power was driven working pumps 3 by engagement cover 23 and is worked by 17 input of working pump transmission shaft;
When 4, lubricant pump was worked: power by lubricant pump driving gear B7 and lubricant pump driving gear A6 engagement driving, realized that lubricant pump transmission shaft 5 drives lubricant pumps 2 work by 12 inputs of working pump transmission shaft tube.
Secondary piston 29 endoporus and outer radius all are equipped with seal ring, constitute an airtight compressed oil cylinder with working pump transmission shaft tube 12 and forward gear clutch housing gear 8.When forward gear clutch 10 engaged, partition 9 and front friction plate before secondary piston 29 compresses under the effect of the manipulation oil pressure that oil feed pump 3 provides gradually were by the transmission of power of friction torque realization active part and secondary part.When forward gear clutch 10 separated, the pressure oil effect was eliminated, and preceding retracting spring 25 is rapidly with secondary piston 29 pushed home, and preceding partition 9 separates with front friction plate, and transmission of power is interrupted.
Referring to Fig. 7, be separately installed with damper mechanism on the casing 1 of transmission shaft 4 both sides.Damper mechanism comprises ingot axle 35, is set with eccentric rubber pad 34 on the ingot axle 35, and eccentric rubber pad 34 outer cover are equipped with outer rim 33.As seen from Figure 7, the damper mechanism in left side is installed on the casing by the support left socle 31 that ingot axle 35 two ends are connecting, and the damper mechanism on right side is installed on the casing by the support right support 32 that ingot axle 35 two ends are connecting.

Claims (5)

1. 2~3.5t hydraulic fork lift the torque converter that has the band pump mechanism comprises casing (1), the forward gear clutch (10) of speed changer and retreats retaining clutch (20); Described forward gear clutch (10) comprises front case, is provided with secondary piston (29), preceding partition (9) and the front friction plate more than two more than two in the front case; Retreat retaining clutch (20) and comprise rear case, be provided with back piston (15), the back partition (21) more than two and the back friction plate more than two in the rear case, it is characterized in that:
Described casing (1) top one side is provided with lubricant pump transmission shaft (5) by bearing, one end of lubricant pump transmission shaft (5) extends casing (1) outside, the overhanging end of lubricant pump transmission shaft (5) is provided with lubricant pump (2), and lubricant pump transmission shaft (5) is provided with lubricant pump driving gear A(6);
Described casing (1) top opposite side is provided with working pump transmission shaft tube (12) by bearing, working pump transmission shaft tube (12) is a hollow shaft, be fixed with lubricant pump driving gear B(7 on the one side successively) forward gear clutch (10), be provided with forward gear gear (11) by bearing, the front case outside of described forward gear clutch (10) is provided with forward gear clutch housing gear (8), lubricant pump driving gear B(7) and lubricant pump driving gear A(6) engagement; Working pump transmission shaft tube (12) opposite side is provided with oil feed pump (16) and fluid torque converter (13); Working pump transmission shaft (17) is positioned at working pump transmission shaft tube (12), working pump transmission shaft (17) two ends are involute splines, left end and engagement cover (23) splined, right-hand member is inserted in the input guide bracket splined hole of fluid torque converter, and working pump transmission shaft (17) is provided with axle sleeve (27) and second needle bearing (28); The end of the working pump transmission shaft (17) corresponding with engagement cover (23) is connecting working pump (3), and working pump (3) is positioned at casing (1) outside;
The casing (1) of described working pump transmission shaft tube (12) below upward is provided with by bearing and retreats retaining clutch shaft (24), the described retaining clutch shaft (24) that retreats is provided with and retreats retaining clutch (20) and retreat retaining gear (18), and the rear case outside that retreats retaining clutch (20) is provided with to retreat and keeps off clutch housing gear (22); Retreat retaining clutch housing gear (22) and forward gear clutch gear (8) and be normal engagement;
The casing (1) of described lubricant pump transmission shaft (5) below is provided with transmission shaft (4), and described transmission shaft (4) is provided with output gear (19), described output gear (19) and retreat retaining gear (18) for often meshing; Forward gear gear (11) is normal engagement with output gear (19).
2. 2~3.5t hydraulic fork lift the torque converter with band pump mechanism according to claim 1, it is characterized in that: the bearing on the described working pump transmission shaft (17) is a needle bearing.
3. 2~3.5t hydraulic fork lift the torque converter with band pump mechanism according to claim 1, it is characterized in that: side is coaxial spends strong cover before being provided with for described forward gear gear (11), spend strong cover to stretch in the front case of forward gear clutch (10) before described, described front friction plate more than two is set in spends strong putting before described.
4. 2~3.5t hydraulic fork lift the torque converter with band pump mechanism according to claim 1, it is characterized in that: described retreat retaining gear (18) a side be coaxial spend strong cover after being provided with, spend strong cover to stretch in the rear case that retreats retaining clutch (20) after described, described back friction plate more than two is set in spends strong putting after described.
5. 2~3.5t hydraulic fork lift the torque converter with band pump mechanism according to claim 1, it is characterized in that: be respectively equipped with damper mechanism on the casing (1) of described transmission shaft (4) both sides, described damper mechanism comprises the ingot axle, be arranged with eccentric rubber pad on the described ingot axle, described eccentric rubber pad outer cover is provided with outer rim; Described ingot axle two ends are connecting support respectively, and described support is fixed on the casing.
CN2011201491943U 2011-05-12 2011-05-12 Hydraulic transmission equipped with pump mechanism for 2-3.5 ton hydraulic forklift Expired - Lifetime CN202048159U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201491943U CN202048159U (en) 2011-05-12 2011-05-12 Hydraulic transmission equipped with pump mechanism for 2-3.5 ton hydraulic forklift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201491943U CN202048159U (en) 2011-05-12 2011-05-12 Hydraulic transmission equipped with pump mechanism for 2-3.5 ton hydraulic forklift

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102261451A (en) * 2011-05-12 2011-11-30 安徽合力股份有限公司 Hydrodynamic transmission for 2-3.5t hydraulic fork truck with pump mechanism
CN104074968A (en) * 2014-07-01 2014-10-01 安徽合力股份有限公司 Automatic gear shifting subordinate-testing gearbox for transmission test
CN107914574A (en) * 2017-11-21 2018-04-17 安徽合力股份有限公司 A kind of flexible connection Hydrodynamic transmission for small tonnage fork car
CN109469717A (en) * 2017-09-07 2019-03-15 腓特烈斯港齿轮工厂股份公司 Tractor parts transmission device for vehicle transmission

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102261451A (en) * 2011-05-12 2011-11-30 安徽合力股份有限公司 Hydrodynamic transmission for 2-3.5t hydraulic fork truck with pump mechanism
CN102261451B (en) * 2011-05-12 2013-06-12 安徽合力股份有限公司 Hydrodynamic transmission for 2-3.5t hydraulic fork truck with pump mechanism
CN104074968A (en) * 2014-07-01 2014-10-01 安徽合力股份有限公司 Automatic gear shifting subordinate-testing gearbox for transmission test
CN109469717A (en) * 2017-09-07 2019-03-15 腓特烈斯港齿轮工厂股份公司 Tractor parts transmission device for vehicle transmission
CN109469717B (en) * 2017-09-07 2023-05-30 腓特烈斯港齿轮工厂股份公司 Traction device drive for a motor vehicle transmission
CN107914574A (en) * 2017-11-21 2018-04-17 安徽合力股份有限公司 A kind of flexible connection Hydrodynamic transmission for small tonnage fork car
CN107914574B (en) * 2017-11-21 2024-01-30 安徽合力股份有限公司 Flexible connection hydraulic transmission for small-tonnage forklift

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Granted publication date: 20111123

Effective date of abandoning: 20130612

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Effective date of abandoning: 20130612

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