CN211009826U - Reduction gearbox with parking brake - Google Patents
Reduction gearbox with parking brake Download PDFInfo
- Publication number
- CN211009826U CN211009826U CN201922116721.XU CN201922116721U CN211009826U CN 211009826 U CN211009826 U CN 211009826U CN 201922116721 U CN201922116721 U CN 201922116721U CN 211009826 U CN211009826 U CN 211009826U
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- input shaft
- side wall
- bearing
- reduction gearbox
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Abstract
The utility model discloses a reduction gearbox with a parking brake, which comprises a reducer shell and an input shaft, wherein an upper connecting shaft part formed at the upper end of the input shaft is hinged in an upper through hole formed on an upper wall plate of the reducer shell through a bearing; the middle part of the input shaft is positioned in the speed reducer shell, and a transmission external tooth part is formed on the outer side wall of the middle part of the input shaft; a lower connecting part is formed below the middle part of the input shaft and is hinged in a lower through hole formed in a lower wall plate of the reducer shell through a bearing; the electric forklift with the reduction gearbox is provided with the brake, so that the electric forklift can park on a slope independently, the electric forklift can be guaranteed to park on the slope, the electric forklift cannot slide down the slope, and the effect is good.
Description
The technical field is as follows:
the utility model relates to a fork truck makes technical field, and more specifically says and relates to a reducing gear box with parking brake.
Background art:
the reduction gearbox in the forklift on the market at present is a product of conventional design, as shown in figure 1, the main input shaft 10a of the reduction gearbox is not provided with a parking brake, the parking brake is installed on a drive axle, the reduction gearbox is used in an electric forklift, and the dead weight of a storage battery of the electric forklift is large, so that when the electric forklift adopts the parking brake on the drive axle to park on a slope which is a slope, the parking brake cannot be realized, and the phenomenon of slope slipping exists.
The utility model has the following contents:
the utility model aims at overcoming prior art's not enough, providing a reducing gear box with parking brake, it is from taking the stopper for it can independent parking, can guarantee that the electric fork-lift who adopts this reducing gear box can be on the ramp parking, can not swift current slope, and is effectual.
The utility model provides a technical problem's scheme is:
a reduction gearbox with a parking brake comprises a speed reducer shell and an input shaft, wherein an upper connecting shaft part formed at the upper end of the input shaft is hinged in an upper through hole formed on an upper wall plate of the speed reducer shell through a bearing;
the middle part of the input shaft is positioned in the speed reducer shell, and a transmission external tooth part is formed on the outer side wall of the middle part of the input shaft;
a lower connecting part is formed below the middle part of the input shaft and is hinged in a lower through hole formed in a lower wall plate of the reducer shell through a bearing;
an end cover is fixed on the bottom surface of a lower wall plate of the speed reducer shell, a vertical installation through hole is formed in the middle of the end cover, a bottom end portion is formed on the bottom surface of a lower connecting portion of the input shaft, the bottom end portion is inserted and sleeved in the vertical installation through hole, the bottom surface of the end cover presses against an elastic disc of the brake, a spline shaft portion is formed on the bottom surface of the bottom end portion, and the spline shaft portion is fixed in the brake.
The inner wall of the brake drum of the brake is fixedly connected with an installation sleeve through a bolt, the spline shaft part is inserted and sleeved in the installation sleeve, an inner spline groove is formed in the inner side wall of the installation sleeve, and the spline shaft part is matched with the inner spline groove.
The bottom of the spline shaft part is formed with a bolt connection column extending downwards, the bolt connection column extends out of the bottom surface of the mounting sleeve and is inserted with a gasket and connected with a locking nut in a threaded mode, the top surface of the locking nut is pressed against the bottom surface of the gasket, and the gasket is pressed against the bottom surface of the middle of the mounting sleeve.
The middle part of the upper end face of the input shaft is provided with an upper connecting shaft part which extends upwards, the upper connecting shaft part is inserted and sleeved in the upper through hole, an inner ring of a bearing in the upper through hole is fixed on the upper connecting shaft part, the outer side wall of an outer ring of the bearing in the upper through hole is clamped and fixed on the inner side wall of the upper through hole, and the bottom surface of the inner ring of the bearing in the upper through hole is pressed on the upper end face of the input shaft.
A clamp spring groove is formed in the inner side wall of the middle of the upper through hole, the clamp spring is clamped in the clamp spring groove, and the bottom surface of the clamp spring is pressed against the top surface of the outer ring of the bearing in the upper through hole.
A first oil seal is clamped between the upper connecting shaft part and the inner side wall of the upper through hole.
The vertical installation through hole is a stepped through hole and comprises an upper large-diameter hole section, a middle hole section and a bottom small-diameter hole section, the outer ring of a bearing in the lower through hole is fixed on the inner side wall of the upper large-diameter hole section and the inner side wall of the lower through hole, the outer side wall of the lower connecting part is fixed in the inner ring of the bearing in the lower through hole, the diameter of the middle part of the input shaft is larger than that of the lower connecting part, and the top end face of the inner ring of the bearing in the lower through hole is pressed on the bottom face of the middle part lower part of the input shaft.
The bottom end part is inserted and sleeved in the middle hole section, and a second oil seal is clamped between the inner side wall of the middle hole section and the outer side wall of the bottom end part.
The utility model discloses an outstanding effect is:
the electric forklift with the reduction gearbox is provided with the brake, so that the electric forklift can park on a slope independently, the electric forklift can be guaranteed to park on the slope, the electric forklift cannot slide down the slope, and the effect is good.
Description of the drawings:
FIG. 1 is a partial schematic view of a conventional retarder at the final input shaft;
fig. 2 is a partial structural schematic diagram of the present embodiment.
The specific implementation mode is as follows:
in an embodiment, as shown in fig. 2, a reduction gearbox with a parking brake comprises a reducer casing 10 and an input shaft 11, wherein an upper connecting shaft part 111 formed at the upper end of the input shaft 11 is hinged in an upper through hole 13 formed on an upper wall plate of the reducer casing 10 through a bearing 12;
the middle part of the input shaft 11 is positioned in the speed reducer shell 10, and a transmission external tooth part 112 is formed on the outer side wall of the middle part of the input shaft 11;
a lower connecting part 113 is formed below the middle part of the input shaft 11, and the lower connecting part 113 is hinged in a lower through hole 14 formed on the lower wall plate of the speed reducer shell 10 through a bearing 12;
an end cap 20 is fixed to the bottom surface of the lower wall plate of the reducer case 10, a vertical mounting through hole 21 is formed in the middle of the end cap 20, a bottom end portion 114 is formed on the bottom surface of the lower connecting portion 113 of the input shaft 11, the bottom end portion 114 is inserted into the vertical mounting through hole 21, the bottom surface of the end cap 20 is pressed against the elastic disc 31 of the brake 30, a spline shaft portion 115 is formed on the bottom surface of the bottom end portion 114, and the spline shaft portion 115 is fixed in the brake 30.
Further, an installation sleeve 33 is fixedly connected to the inner wall surface of the brake drum 32 of the brake 30 through bolts, the spline shaft portion 115 is inserted into the installation sleeve 33, an inner spline groove is formed in the inner side wall of the installation sleeve 33, and the spline shaft portion 115 is matched with the inner spline groove.
Further, a bolt post 116 extending downward is formed at the bottom end of the spline shaft portion 115, the bolt post 116 extends out of the bottom surface of the mounting sleeve 33 and is inserted and sleeved with a washer 1 and a lock nut 2, the top surface of the lock nut 2 is pressed against the bottom surface of the washer 1, and the washer 1 is pressed against the bottom surface of the middle portion of the mounting sleeve 33.
Further, an upper connecting shaft portion 111 extending upward is formed in the middle of the upper end surface of the input shaft 11, the upper connecting shaft portion 111 is inserted into the upper through hole 13, an inner ring of the bearing 12 in the upper through hole 13 is fixed on the upper connecting shaft portion 111, an outer side wall of an outer ring of the bearing 12 in the upper through hole 13 is fixed on an inner side wall of the upper through hole 13 in a clamped manner, and a bottom surface of the inner ring of the bearing 12 in the upper through hole 13 is pressed against the upper end surface of the input shaft 11.
Furthermore, a clamp spring groove 3 is formed in the inner side wall of the middle of the upper through hole 13, the clamp spring 4 is clamped in the clamp spring groove 3, and the bottom surface of the clamp spring 4 is pressed against the top surface of the outer ring of the bearing 12 in the upper through hole 13.
Further, a first oil seal 5 is clamped between the upper connecting shaft part 111 and the inner side wall of the upper through hole 13.
Further, the vertical mounting through-hole 21 is a stepped through-hole including an upper large diameter hole section 211, a middle hole section 212, and a bottom small diameter hole section 213, an outer race of the bearing 12 in the lower through-hole 14 is fixed on an inner side wall of the upper large diameter hole section 211 and an inner side wall of the lower through-hole 14, an outer side wall of the lower connecting portion 113 is fixed in an inner race of the bearing 12 in the lower through-hole 14, a diameter at a middle portion of the input shaft 11 is larger than a diameter of the lower connecting portion 113, and a top end face of the inner race of the bearing 12 in the lower through-hole 14 is pressed against a bottom face at a lower portion of the middle portion of the input shaft.
Further, the bottom end portion 114 is inserted into the middle hole section 212, and the second oil seal 6 is sandwiched between the inner side wall of the middle hole section 212 and the outer side wall of the bottom end portion 114.
Further, the top end of the mounting sleeve 33 is inserted into the bottom small diameter hole section 213, the middle bottom surface of the end cap 20 is formed with a downwardly extending protruding ring 22, the middle of the elastic disc 31 of the brake 30 is provided with a mounting through hole, the protruding ring 22 is inserted into the mounting through hole, the outer side wall of the protruding ring 22 is pressed against the inner side wall of the mounting through hole, and the top end of the mounting sleeve 33 is inserted into the protruding ring 22.
When the electric forklift is used, the brake 30 mounted on the input shaft 11 can brake the input shaft 11, the brake of the reduction gearbox is realized, the electric forklift adopting the reduction gearbox can be ensured to park on a slope, the electric forklift cannot slide down the slope, and the effect is good.
The brake 30 used in the present embodiment is a 5-10 ton resultant brake, and other brakes may be used, and the brake is a general structure and will not be described in detail.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (8)
1. A reduction gearbox with a parking brake, comprising a reducer housing (10) and an input shaft (11), characterized in that: an upper connecting shaft part (111) formed at the upper end of the input shaft (11) is hinged in an upper through hole (13) formed on an upper wall plate of the speed reducer shell (10) through a bearing (12);
the middle part of the input shaft (11) is positioned in the speed reducer shell (10), and a transmission external tooth part (112) is formed on the outer side wall of the middle part of the input shaft (11);
a lower connecting part (113) is formed below the middle part of the input shaft (11), and the lower connecting part (113) is hinged in a lower through hole (14) formed in the lower wall plate of the speed reducer shell (10) through a bearing (12);
an end cover (20) is fixed to the bottom face of a lower wall plate of the speed reducer shell (10), a vertical installation through hole (21) is formed in the middle of the end cover (20), a bottom end portion (114) is formed in the bottom face of a lower connecting portion (113) of the input shaft (11), the bottom end portion (114) is inserted into the vertical installation through hole (21), the bottom face of the end cover (20) presses against an elastic disc (31) of a brake (30), a spline shaft portion (115) is formed in the bottom face of the bottom end portion (114), and the spline shaft portion (115) is fixed in the brake (30).
2. A reduction gearbox with parking brake according to claim 1, characterized in that: the inner wall surface of a brake drum (32) of the brake (30) is fixedly connected with an installation sleeve (33) through a bolt, a spline shaft part (115) is inserted and sleeved in the installation sleeve (33), an inner spline groove is formed in the inner side wall of the installation sleeve (33), and the spline shaft part (115) is matched with the inner spline groove.
3. A reduction gearbox with parking brake according to claim 2, characterized in that: the bottom end of the spline shaft part (115) is formed with a screw connection column (116) extending downwards, the screw connection column (116) extends out of the bottom surface of the mounting sleeve (33) and is inserted with a gasket (1) and a lock nut (2) in threaded connection, the top surface of the lock nut (2) is pressed against the bottom surface of the gasket (1), and the gasket (1) is pressed against the bottom surface of the middle part of the mounting sleeve (33).
4. A reduction gearbox with parking brake according to claim 1, characterized in that: an upper connecting shaft part (111) extending upwards is formed in the middle of the upper end face of the input shaft (11), the upper connecting shaft part (111) is inserted into the upper through hole (13), an inner ring of a bearing (12) in the upper through hole (13) is fixed on the upper connecting shaft part (111), the outer side wall of an outer ring of the bearing (12) in the upper through hole (13) is clamped and fixed on the inner side wall of the upper through hole (13), and the bottom surface of the inner ring of the bearing (12) in the upper through hole (13) is pressed against the upper end face of the input shaft (11).
5. A reduction gearbox with parking brake according to claim 4, characterized in that: go up the shaping on the middle part inside wall of through-hole (13) and have jump ring groove (3), jump ring (4) card is put in jump ring groove (3), and the bottom surface of jump ring (4) presses on the top surface of the outer lane of bearing (12) in last through-hole (13).
6. A reduction gearbox with parking brake according to claim 4, characterized in that: a first oil seal (5) is clamped between the upper connecting shaft part (111) and the inner side wall of the upper through hole (13).
7. A reduction gearbox with parking brake according to claim 1, characterized in that: the vertical installation through hole (21) is a stepped through hole and comprises an upper large-diameter hole section (211), a middle hole section (212) and a bottom small-diameter hole section (213), the outer ring of a bearing (12) in a lower through hole (14) is fixed on the inner side wall of the upper large-diameter hole section (211) and the inner side wall of the lower through hole (14), the outer side wall of a lower connecting part (113) is fixed in the inner ring of the bearing (12) in the lower through hole (14), the diameter of the middle part of the input shaft (11) is larger than that of the lower connecting part (113), and the top end face of the inner ring of the bearing (12) in the lower through hole (14) is pressed against the bottom face of the lower part of the middle part of the input shaft (11).
8. A reduction gearbox with parking brake according to claim 7, characterized in that: the bottom end part (114) is inserted in the middle hole section (212), and a second oil seal (6) is clamped between the inner side wall of the middle hole section (212) and the outer side wall of the bottom end part (114).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922116721.XU CN211009826U (en) | 2019-12-02 | 2019-12-02 | Reduction gearbox with parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922116721.XU CN211009826U (en) | 2019-12-02 | 2019-12-02 | Reduction gearbox with parking brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211009826U true CN211009826U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922116721.XU Active CN211009826U (en) | 2019-12-02 | 2019-12-02 | Reduction gearbox with parking brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211009826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610669A (en) * | 2020-12-16 | 2021-04-06 | 苏州绿控传动科技股份有限公司 | Reduction gearbox for new energy electric drive bridge |
-
2019
- 2019-12-02 CN CN201922116721.XU patent/CN211009826U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610669A (en) * | 2020-12-16 | 2021-04-06 | 苏州绿控传动科技股份有限公司 | Reduction gearbox for new energy electric drive bridge |
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