CN102758900A - Hydrodynamic transmission used for hydrodynamic forklift and provided with pump mechanism - Google Patents
Hydrodynamic transmission used for hydrodynamic forklift and provided with pump mechanism Download PDFInfo
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- CN102758900A CN102758900A CN2012102573070A CN201210257307A CN102758900A CN 102758900 A CN102758900 A CN 102758900A CN 2012102573070 A CN2012102573070 A CN 2012102573070A CN 201210257307 A CN201210257307 A CN 201210257307A CN 102758900 A CN102758900 A CN 102758900A
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- transmission shaft
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Abstract
The invention relates to a hydrodynamic transmission used for a hydrodynamic forklift and provided with a pump mechanism. A lubrication pump transmission shaft is arranged on one side of the upper part of a transmission body, a lubrication pump is arranged at an outward extending end of the lubrication pump transmission shaft, and a first lubrication pump transmission gear is arranged on the lubrication pump transmission shaft; a hollow working pump transmission shaft tube is arranged on the other side of the upper part, a forward gear clutch and a forward gear of a second lubrication pump transmission gear are sequentially fixed on one side of the working pump transmission shaft tube, the forward gear clutch includes a forward gear clutch gear, and an oil supply pump and a hydrodynamic torque converter are arranged on the other side; a working pump transmission shaft is arranged in the working pump transmission shaft tube, and 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 sequentially arranged on the backward gear clutch shaft, and a clutch gear is arranged on a casing of the backward gear clutch; and a transmission shaft is arranged below the lubrication pump transmission shaft, and an output gear is arranged on the transmission shaft. The hydrodynamic transmission has two power output ports, and is provided with the working pump and the lubrication pump at the same time, thereby facilitating an entire vehicle matched wet-type brake drive axle.
Description
Technical field
The invention belongs to the forklift speed variator technical field, be specifically related to 2～3.5t hydraulic fork lift and use 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 through a pair of spiral bevel gear transmission; Be rigidly connected through bolt between torque converter and the ransaxle; Mainly there is following defective in this structure: 1, torque converter self is not with working pump, is vibrated when directly the band pump structure all exists because of engine start and idling by motor direct driving pump or motor itself to make pump work unstable greatly, and the 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 from car load, separately speed changer be taken out, must earlier whole drive system be separated from car, could speed changer 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 present invention provides a kind of hydraulic fork lift with band pump mechanism to use torque converter.
The technical solution that realizes above-mentioned purpose is following:
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; Said 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;
Said casing 1 top one side is provided with lubricant pump transmission shaft 5 through 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 the first lubricant pump driving gear 6;
Said casing 1 top opposite side is provided with working pump transmission shaft tube 12 through bearing; Working pump transmission shaft tube 12 is a hollow shaft; Fixedly establish successively on the one of which side second lubricant pump driving gear 7 arranged forward gear clutch 10, be provided with forward gear gear 11 through bearing; The front case outside of said forward gear clutch 10 is provided with forward gear clutch gear 8, the second lubricant pump driving gears 7 and 6 engagements of the first lubricant pump driving gear; 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 13, 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 said working pump transmission shaft tube 12 belows through bearing be provided with retreat the retaining clutch shaft 24; The said retaining clutch shaft 24 of retreating is provided with and retreats retaining clutch 20 and retreat retaining gear 18, and the rear case outside of retreating retaining clutch 20 is provided with retreats retaining clutch gear 22; Retreat retaining clutch gear 22 and be normal engagement with forward gear clutch gear 8;
The casing 1 of said lubricant pump transmission shaft 5 belows is provided with transmission shaft 4, and said transmission shaft 4 is provided with output gear 19, and said 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 said working pump transmission shaft 17 is a needle bearing.
Said forward gear gear 11 1 sides are coaxial to be provided with preceding spline housing, said before spline housing stretch in the front case of forward gear clutch 10, said front friction plate more than two be set in said before on the spline housing.
The said coaxial back spline housing that is provided with of retaining gear 18 1 sides of retreating, said back spline housing stretches in the rear case of retreating retaining clutch 20, and said back friction plate more than two is set on the spline housing of said back.
Be respectively equipped with damper mechanism on the casing 1 of said transmission shaft 4 both sides, said damper mechanism comprises the ingot axle, is arranged with eccentric rubber pad on the said ingot axle, and said eccentric rubber pad outer cover is provided with outer rim; Said ingot axle two ends are connecting support respectively, and said support is fixed on the casing.
The present invention compares with prior art products and has the advantage of following aspect:
1, speed changer of the present invention 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 through Rubber shock-absorbing pad between speed changer and the ransaxle, can reduce the car load vibration, handling comfort is improved.Instruct according to the 98/37/EC of European Union; The whole body vibration value reduces about 60～70% less than
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 a structural representation of the present invention.
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.
Sequence number among the last figure: casing 1; Lubricant pump 2; Working pump 3; Transmission shaft 4; Lubricant pump transmission shaft 5; The first lubricant pump driving gear 6; The second lubricant pump driving gear 7; Forward gear clutch gear 8; Preceding partition 9; Forward gear clutch 10; Forward gear gear 11; Working pump transmission shaft tube 12; Fluid torque converter 13; Back piston 15; Oil feed pump 16; Working pump transmission shaft 17; Retreat retaining gear 18; Output gear 19; Retreat retaining clutch 20; Back partition 21; Retreat retaining clutch gear 22; Engagement cover 23; Retreat retaining clutch shaft 24; Preceding retracting spring 25; First needle bearing 26; Axle sleeve 27; Second needle bearing 28; Secondary piston 29; Left socle 31; Right support 32; Outer rim 33; Eccentric rubber pad 34; Ingot axle 35.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done to describe further through embodiment:
Embodiment:
Referring to Fig. 1; 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 through Bearing Installation; One end of lubricant pump transmission shaft 5 extends casing 1 outside, and lubricant pump 2 is installed on the overhanging end of lubricant pump transmission shaft 5, is installed with the first lubricant pump driving gear 6 on the lubricant pump transmission shaft 5;
Referring to Fig. 2, casing 1 top opposite side has working pump transmission shaft tube 12 through Bearing Installation.Referring to Fig. 1; Be welded to connect the front case of the second lubricant pump driving gear 7 and forward gear clutch 10 on working pump transmission shaft tube 12 1 sides successively; Through 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, the second lubricant pump driving gears 7 and 6 engagements of the first lubricant pump driving gear; 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, and working pump transmission shaft 17 is through 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;
Retreat retaining clutch shaft 24 through Bearing Installation on the casing 1 of working pump transmission shaft tube 12 belows; The said retaining of retreating is provided with successively on the clutch shaft 24 and retreats retaining clutch 20 and retreat retaining gear 18, and the rear case outside of retreating retaining clutch 20 is provided with retreats retaining clutch housing gear 22; Retreat retaining clutch housing gear 22 and be normal engagement with forward gear clutch gear 8;
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 that retaining gear 18 1 sides are coaxial to connect back spline housing; Back spline housing stretches in the back piston 15; Back friction plate more than two is set on the spline housing of back; Said retaining clutch gear 22 circumferencial directions of retreating are provided with plural square groove, and the back partition 21 more than two is located to be retreated in the retaining clutch gear 22, locatees through 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 invention 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 through 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; Through forward gear clutch gear 8 and the engagement of retreating retaining clutch gear 22, 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 through engagement cover 23 and is worked by 17 input of working pump transmission shaft;
When 4, lubricant pump was worked: power through the second lubricant pump driving gear 7 and the first lubricant pump driving gear, 6 engagement driving, realized that lubricant pump transmission shaft 5 drives lubricant pumps 2 work by 12 inputs of working pump transmission shaft tube.
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.Visible by Fig. 7, the damper mechanism in left side is installed on the casing through 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 through the support right support 32 that ingot axle 35 two ends are connecting.
Claims (5)
1. the hydraulic fork lift that has the band pump mechanism is used torque converter, comprises casing (1), the forward gear clutch (10) of speed changer and retreats retaining clutch (20); Said 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: said casing (1) top one side is provided with lubricant pump transmission shaft (5) through bearing; One 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 the first lubricant pump driving gear (6);
Said casing (1) top opposite side is provided with working pump transmission shaft tube (12) through bearing; Working pump transmission shaft tube (12) is a hollow shaft; Be fixed with successively on the one of which side the second lubricant pump driving gear (7) forward gear clutch (10), be provided with forward gear gear (11) through bearing; The front case outside of said forward gear clutch (10) is provided with forward gear clutch gear (8), the second lubricant pump driving gear (7) and the engagement of the first lubricant pump driving gear (6); 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 (13), 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 said working pump transmission shaft tube (12) below upward is provided with through bearing and retreats retaining clutch shaft (24); The said retaining clutch shaft (24) of retreating is provided with and retreats retaining clutch (20) and retreat retaining gear (18), and the rear case outside of retreating retaining clutch (20) is provided with to retreat and keeps off clutch gear (22); Retreat retaining clutch gear (22) and forward gear clutch gear (8) and be normal engagement;
The casing (1) of said lubricant pump transmission shaft (5) below is provided with transmission shaft (4), and said transmission shaft (4) is provided with output gear (19), said output gear (19) with retreat retaining gear (18) for often meshing; Forward gear gear (11) is normal engagement with output gear (19).
2. the hydraulic fork lift with band pump mechanism according to claim 1 is used torque converter, and it is characterized in that: the bearing on the said working pump transmission shaft (17) is a needle bearing.
3. the hydraulic fork lift with band pump mechanism according to claim 1 is used torque converter; It is characterized in that: said forward gear gear (11) one sides are coaxial to be provided with preceding spline housing; Spline housing stretches in the front case of forward gear clutch (10) before said, and said front friction plate more than two is set on the said preceding spline housing.
4. the hydraulic fork lift with band pump mechanism according to claim 1 is used torque converter; It is characterized in that: the said coaxial back spline housing that is provided with of retaining gear (18) one sides of retreating; Said back spline housing stretches in the rear case of retreating retaining clutch (20), and said back friction plate more than two is set on the spline housing of said back.
5. the hydraulic fork lift with band pump mechanism according to claim 1 is used torque converter; It is characterized in that: be respectively equipped with damper mechanism on the casing (1) of said transmission shaft (4) both sides; Said damper mechanism comprises the ingot axle; Be arranged with eccentric rubber pad on the said ingot axle, said eccentric rubber pad outer cover is provided with outer rim; Said ingot axle two ends are connecting support respectively, and said support is fixed on the casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102573070A CN102758900A (en) | 2012-07-24 | 2012-07-24 | Hydrodynamic transmission used for hydrodynamic forklift and provided with pump mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102573070A CN102758900A (en) | 2012-07-24 | 2012-07-24 | Hydrodynamic transmission used for hydrodynamic forklift and provided with pump mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758900A true CN102758900A (en) | 2012-10-31 |
Family
ID=47053479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102573070A Withdrawn CN102758900A (en) | 2012-07-24 | 2012-07-24 | Hydrodynamic transmission used for hydrodynamic forklift and provided with pump mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758900A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398160A (en) * | 2013-08-19 | 2013-11-20 | 安徽合力股份有限公司 | Fork truck hydrodynamic gearbox body |
| CN103511582A (en) * | 2013-10-14 | 2014-01-15 | 浙江中柴机器有限公司 | Hydrodynamic transmission speed changer with novel hydraulic control system |
| 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 |
| CN113565900A (en) * | 2021-07-26 | 2021-10-29 | 贵州凯星液力传动机械有限公司 | Combined hydraulic retarder |
| CN114278713A (en) * | 2021-12-22 | 2022-04-05 | 采埃孚合力传动技术(合肥)有限公司 | Hydraulic transmission case of small-tonnage forklift |
-
2012
- 2012-07-24 CN CN2012102573070A patent/CN102758900A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398160A (en) * | 2013-08-19 | 2013-11-20 | 安徽合力股份有限公司 | Fork truck hydrodynamic gearbox body |
| CN103398160B (en) * | 2013-08-19 | 2015-10-21 | 安徽合力股份有限公司 | A kind of fork truck hydrodynamic gearbox body |
| CN103511582A (en) * | 2013-10-14 | 2014-01-15 | 浙江中柴机器有限公司 | Hydrodynamic transmission speed changer with novel hydraulic control system |
| CN103511582B (en) * | 2013-10-14 | 2016-03-02 | 浙江中柴机器有限公司 | A kind of hydrodynamic drive speed changer with hydraulic control system |
| 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 |
| CN113565900A (en) * | 2021-07-26 | 2021-10-29 | 贵州凯星液力传动机械有限公司 | Combined hydraulic retarder |
| CN114278713A (en) * | 2021-12-22 | 2022-04-05 | 采埃孚合力传动技术(合肥)有限公司 | Hydraulic transmission case of small-tonnage forklift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20121031 |