CN210084862U - Wet-type drive axle of forklift - Google Patents
Wet-type drive axle of forklift Download PDFInfo
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- CN210084862U CN210084862U CN201920992672.3U CN201920992672U CN210084862U CN 210084862 U CN210084862 U CN 210084862U CN 201920992672 U CN201920992672 U CN 201920992672U CN 210084862 U CN210084862 U CN 210084862U
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Abstract
The utility model particularly relates to a fork truck wet-type transaxle, including main reducer assembly, pontic subassembly, semi-axis, hub reduction gear, wheel hub, wet brake assembly, the pontic subassembly covers and sets up on the outside circumference of semi-axis, and the main reducer assembly sets up in the middle of the semi-axis, and the wheel reduction gear is provided with two and sets up respectively at the both ends of semi-axis, and wheel hub is provided with two and sets up respectively in two hub reduction gear inboards, and wet brake assembly is provided with two, passes through bolted connection with wheel hub respectively and fixes; the wet brake assembly comprises a brake piston, a clutch plate, a disc type friction plate and a brake flange, wherein the brake piston, the clutch plate, the disc type friction plate and the brake flange are sequentially arranged, and the brake flange is fixedly connected to a wheel hub through a bolt. The utility model discloses fork truck wet-type transaxle, compact structure, braking torque is big, braking stability is high, and the leakproofness is good, and antipollution ability is strong, and the cooling effect is good, is not limited to service environment and maintenance cycle length.
Description
Technical Field
The utility model belongs to the technical field of the transaxle for the vehicle specifically is a fork truck wet-type transaxle.
Background
When the forklift is used in a severe environment (such as a chemical plant, a stone factory with more dust and dust, a coal mine factory, an oil refinery and the like), once the brake is not maintained timely, the brake hub and the brake disc are corroded and worn early, oil stains are adhered to brake friction plates, and the brake fails; because the heat energy generated in the braking process of the shoe type and caliper disc type brakes is cooled by utilizing natural ventilation, the cooling effect is poor, once the forklift brakes frequently in the use process, the thermal stability of the friction plates of the brakes is influenced, and the braking performance is reduced; structurally, the shoe brake is limited in size by the axial dimension and inner diameter of the tire rim, and it is difficult to increase the friction acting area, so that the braking torque is small. The caliper brake has small friction area and high pressure per unit area, and a high-performance friction plate is required, so that the caliper brake is high in cost and high in assembly difficulty.
At present, most of wet brakes are used in engineering machinery vehicles, and the wet brakes are rarely used in a forklift, so that a proper wet drive axle structure is researched and applied to the forklift, the brake stability of the forklift drive axle is improved, and the limitation of the use environment of the forklift drive axle is broken, so that the wet brakes are very necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, the utility model aims to provide a wet-type drive axle of forklift to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the present invention provides the following technical solutions:
a forklift wet-type drive axle comprises a main speed reducer assembly, axle body components, half shafts, wheel side speed reducers, wheel hubs and a wet-type brake assembly, wherein the axle body components are arranged on the outer circumference of the half shafts in a covering mode; the wet brake assembly comprises a brake piston, a clutch plate, a disc type friction plate and a brake flange, wherein the brake piston, the clutch plate, the disc type friction plate and the brake flange are sequentially arranged, and the brake flange is fixedly connected to a wheel hub through a bolt.
Preferably, the main reducer assembly is connected with the forklift internal combustion engine through a transmission shaft, the forklift internal combustion engine provides input power for the main reducer assembly, the half shaft, the hub reducer, the wheel hub and the wet brake assembly through the transmission shaft, and primary speed reduction is performed on the main reducer assembly.
Preferably, the disk friction plates are composed of five static friction plates and four dynamic friction plates, and the five static friction plates and the four dynamic friction plates are alternately overlapped together in sequence.
Preferably, a brake oil inlet and a brake pump are arranged on the wet brake assembly, and the brake oil inlet is connected to the brake pump through an oil pipe.
Preferably, a piston sealing ring is arranged on the outer side of the brake piston, the piston sealing ring is a BY ring, the brake piston controls braking through the brake pump, the brake pump realizes sealing through the piston sealing ring, and the brake piston can obtain stable brake pressure and reduce resistance in the resetting process of the brake piston during pressure relief.
Preferably, the dynamic friction plate is connected to the brake flange through a straight gear, and floating oil seals are arranged between the dynamic friction plate and the brake flange to realize the external sealing of the whole hub and the brake flange.
Preferably, the heat energy generated by friction between the static friction plate and the dynamic friction plate is absorbed by gear oil from a hub reduction gear.
Preferably, a return spring is arranged in the wet brake assembly, and the return spring is connected to act on the clutch plate.
The beneficial effects of the utility model reside in that:
the utility model discloses a forklift wet-type drive axle adopts a plurality of disc static friction discs and disc dynamic friction discs to be alternately overlapped together in turn, which is easy to increase the friction area, so the braking torque is large and the braking effect is obvious; the heat energy generated by friction between the static friction plate and the dynamic friction plate is absorbed by the gear oil from the hub reduction gear, so that the heat dissipation is strong, the thermal stability is good, and the braking effect is stable. The utility model discloses fork truck wet-type transaxle, compact structure, braking torque is big, braking stability is high, and the leakproofness is good, and antipollution ability is strong, and the cooling effect is good, is not limited to service environment and maintenance cycle length.
Drawings
FIG. 1: the utility model has a schematic structure;
FIG. 2: the utility model discloses wet brake assembly structure sketch map.
Detailed Description
The following description of the embodiments of the present invention is made with reference to the accompanying drawings 1-2:
as shown in fig. 1-2, a wet-type drive axle of a forklift includes a main reducer assembly 1, a bridge body assembly 2, a half axle 3, a hub reduction gear 4, hubs 5, and a wet-type brake assembly 6, wherein the bridge body assembly 2 is covered and arranged on the outer circumference of the half axle 3, the main reducer assembly 1 is arranged in the middle of the half axle 3, the hub reduction gear 4 is provided with two and respectively arranged at two ends of the half axle 3, the hubs 5 are provided with two and respectively arranged on the bridge body assemblies 2 at the inner sides of the two hub reduction gears 4, the hub reduction gears 4 and the hubs 5 are connected and fixed in a one-to-one correspondence manner, the wet-type brake assembly 6 is provided with two and respectively arranged on the bridge body assemblies 2 at the inner sides of the two hubs 5, and the wet-type; the main reducer assembly 1 is connected with a forklift internal combustion engine through a transmission shaft, the forklift internal combustion engine provides input power for the main reducer assembly 1, a half shaft 3, a hub reducer 4, a hub 5 and a wet brake assembly 6 through the transmission shaft, and primary speed reduction is carried out on the main reducer assembly 1; the main reducer assembly 1 transmits power to the hub reduction gear 4 through the half shaft 3, and secondary speed reduction is achieved. And finally, the hub reducer 4 transmits power to the hub 5, so that the rotation of the hub 5 is realized and the whole vehicle is driven to move.
The wet brake assembly 6 comprises a brake piston 61, a clutch plate 62, a disc type friction plate 63 and a brake flange 64, wherein the brake piston 61, the clutch plate 62, the disc type friction plate 63 and the brake flange 64 are sequentially arranged, and the brake flange 64 is fixed on the hub 5 through bolt connection. The disk friction plate 63 is composed of five static friction plates 631 and four dynamic friction plates 632, and the five static friction plates 631 and the four dynamic friction plates 632 are sequentially and alternately stacked together. The heat energy generated by the friction between the static friction plate 631 and the dynamic friction plate 632 is absorbed by the gear oil from the wheel reduction gear 4. The dynamic friction plate 632 is connected to the brake flange 64 through a straight gear, and the floating oil seal 65 is arranged between the dynamic friction plate 632 and the brake flange 64 to realize the external sealing of the whole hub 5 and the brake flange 64.
The wet brake assembly 6 is provided with a brake oil inlet 67 and a brake pump 68, and the brake oil inlet 67 is connected to the brake pump 68 through an oil pipe. The piston sealing ring 611 is arranged on the outer side of the brake piston 61, the piston sealing ring 611 is a BY ring, the brake piston 61 controls braking through the brake pump 68, and the brake pump 68 realizes sealing through the piston sealing ring 611, so that the brake piston 61 can obtain stable brake pressure and reduce resistance in the resetting process of the brake piston 61 when pressure is relieved.
Six return springs 66 are provided in the wet brake assembly 6, the return springs 66 being operatively connected to act on the clutch plate 62.
In the working process of the wet-type drive axle of the forklift, an operator steps on the foot to brake, and a hydraulic pump system of the forklift works to generate a braking power source; hydraulic oil enters the brake pump 68 through the brake oil inlet 67, the brake pump 68 works, the hydraulic oil pushes the brake piston 61 to move, the brake piston 61 pushes the clutch plate 62 to move, and five static friction plates 631 and four dynamic friction plates 632 are pressed together step by step, so that friction force is generated between the static friction plates 631 and the dynamic friction plates 632, and the dynamic friction plates 632 are prevented from rotating; the dynamic friction plate 632 transmits the braking resistance torque to the hub 5 through the braking flange 64, and the hub 5 is forced to decelerate until stopping. At the end of braking, the brake pump 68 is not operated, the braking pressure disappears, at this time, the six return springs 66 generate the return spring force and push the clutch plate 62 to return, so that the static friction plate 631 and the dynamic friction plate 632 are separated instantly, and the friction resistance disappears.
The utility model discloses fork truck wet-type transaxle, compact structure, braking torque is big, braking stability is high, and the leakproofness is good, and antipollution ability is strong, and the cooling effect is good, is not limited to service environment and maintenance cycle length.
The above description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the method and the technical solution of the present invention are not substantially improved or directly applied to other occasions without improvement, and are all within the protection scope of the present invention.
Claims (8)
1. A wet-type drive axle of a forklift is characterized by comprising a main speed reducer assembly (1), an axle body assembly (2), a half axle (3), a hub speed reducer (4), a wheel hub (5) and a wet-type brake assembly (6), the bridge body assembly (2) is covered and arranged on the outer circumference of the half shaft (3), the main reducer assembly (1) is arranged in the middle of the half shaft (3), the wheel-side speed reducers (4) are arranged at two ends of the half shaft (3) respectively, the wheel hubs (5) are provided with two bridge body assemblies (2) which are respectively arranged on the inner sides of the two hub reducers (4), the hub reducers (4) and the hubs (5) are connected and fixed in a one-to-one correspondence way, the wet brake assemblies (6) are provided with two wet brake assemblies which are respectively arranged on the bridge body assemblies (2) at the inner sides of the two hubs (5), the wet brake assembly (6) is fixedly connected with the hub (5) through bolts; the wet brake assembly (6) comprises a brake piston (61), a clutch plate (62), a disc type friction plate (63) and a brake flange (64), the brake piston (61), the clutch plate (62), the disc type friction plate (63) and the brake flange (64) are sequentially arranged, and the brake flange (64) is fixedly connected to the hub (5) through bolts.
2. The wet drive axle of the forklift truck as claimed in claim 1, wherein the main reducer assembly (1) is connected with the internal combustion engine of the forklift truck through a transmission shaft, and the internal combustion engine of the forklift truck provides input power for the main reducer assembly (1), the half shaft (3), the hub reducer (4), the hub (5) and the wet brake assembly (6) through the transmission shaft, and simultaneously realizes primary speed reduction of the main reducer assembly (1).
3. The wet transaxle of a forklift truck of claim 1 wherein the disk friction plates (63) are composed of five static friction plates (631) and four dynamic friction plates (632), and the five static friction plates (631) and the four dynamic friction plates (632) are alternately stacked in sequence.
4. The wet drive axle of the forklift truck as claimed in claim 1, wherein the wet brake assembly (6) is provided with a brake oil inlet (67) and a brake pump (68), and the brake oil inlet (67) is connected to the brake pump (68) through an oil pipe.
5. The wet drive axle of the forklift truck as recited in claim 4, characterized in that a piston seal ring (611) is arranged on the outer side of the brake piston (61), the piston seal ring (611) is a BY ring, the brake piston (61) controls braking through a brake pump (68), the brake pump (68) realizes sealing through the piston seal ring (611), so that the brake piston (61) can obtain stable brake pressure and reduce resistance in the process of resetting the brake piston (61) when pressure is released.
6. The wet drive axle of the forklift truck as claimed in claim 3, wherein the dynamic friction plate (632) is connected to the brake flange (64) through a spur gear, and the floating oil seal (65) is arranged between the dynamic friction plate (632) and the brake flange (64) to realize the integral external sealing of the hub (5) and the brake flange (64).
7. A wet axle for forklifts according to claim 3, characterized in that the heat energy generated by friction between the static friction plate (631) and the dynamic friction plate (632) is absorbed by the gear oil from the wheel reducer (4).
8. Wet drive axle for a forklift truck according to claim 1, characterized in that a return spring (66) is arranged in the wet brake assembly (6), said return spring (66) acting in conjunction on the clutch plate (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920992672.3U CN210084862U (en) | 2019-06-28 | 2019-06-28 | Wet-type drive axle of forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920992672.3U CN210084862U (en) | 2019-06-28 | 2019-06-28 | Wet-type drive axle of forklift |
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| Publication Number | Publication Date |
|---|---|
| CN210084862U true CN210084862U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920992672.3U Active CN210084862U (en) | 2019-06-28 | 2019-06-28 | Wet-type drive axle of forklift |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171789A (en) * | 2019-06-28 | 2019-08-27 | 合肥海源机械有限公司 | A kind of fork truck type wet drive axle |
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2019
- 2019-06-28 CN CN201920992672.3U patent/CN210084862U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171789A (en) * | 2019-06-28 | 2019-08-27 | 合肥海源机械有限公司 | A kind of fork truck type wet drive axle |
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