CN203404076U - Direct insertion type gear pump special for spline sleeve floating type power takeoff unit - Google Patents
Direct insertion type gear pump special for spline sleeve floating type power takeoff unit Download PDFInfo
- Publication number
- CN203404076U CN203404076U CN201320495081.8U CN201320495081U CN203404076U CN 203404076 U CN203404076 U CN 203404076U CN 201320495081 U CN201320495081 U CN 201320495081U CN 203404076 U CN203404076 U CN 203404076U
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- CN
- China
- Prior art keywords
- spline
- gear pump
- connecting body
- power take
- transmission shaft
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- Expired - Lifetime
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Abstract
The utility model belongs to a hydraulic element, and particularly relates to a direct insertion type gear pump special for a spline sleeve floating type power takeoff unit. A detection hole (3) is formed in the side wall of a connecting body (2) and sealed by a screwed plug (4), a spline connecting sleeve (1) is movably arranged in an inner hole of the connecting body (2) and an inner hole of the power takeoff unit (12), an internal spline at the left end of the spline connecting sleeve (1) is connected with an output shaft spline of the power takeoff unit (12), an internal spline at the right end of the spline connecting sleeve (1) is connected with a spline at the left end of a transmission shaft (6), the transmission shaft (6) is arranged on a double-row angular contact ball bearing (5) in a penetrating mode, a driving shaft (9) is arranged in a sliding bearing on a front pump cover (10) of a gear pump body in a penetrating mode, the front pump cover (10) of the gear pump body is arranged on the gear pump body (11), and the driving shaft (9) is sleeved with two framework oil seals (8). According to the direct insertion type gear pump special for the spline sleeve floating type power takeoff unit, a traditional universal transmission shaft connection and hanging bracket hanging mode is changed into a spline floating type connection mode, the size of an installing cantilever of a hydraulic pump is reduced, the structure is simplified, the potential safety hazard that the transmission shaft is unbalanced is eliminated, and cost is reduced.
Description
Technical field
The utility model belongs to hydraulic element, particularly the special-purpose direct insertion gear pump of a kind of spline housing float type power take-off.
Background technique
At present, the gear pump of domestic and international application is more, drive mechanism between gear pump and power take-off adopts universal joint transmission, flexible joining shaft connection for transmission more, these linkage structures are complicated, volume is large, cost is high, coaxality is poor, flexible rotation causes radial force uneven, generation pulsating is moving, cause heavy wear to sweep thorax, vibration noise is large, causes volumetric efficiency low.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of simple in structure, and coaxial precision is high, the special-purpose direct insertion gear pump of spline housing float type power take-off of reliable performance.
The technological scheme that the utility model technical solution problem adopts is: the special-purpose direct insertion gear pump of spline housing float type power take-off comprises gear pump, gear pump front pump cover, driving shaft, outside framework oil seal, tetrafluoro baffle plate, double-row angular contact bal bearing, power take-off, be characterized in that connecting body left side is provided with connecting body end face groove one, right side is provided with connecting body end face groove two, connecting body end face groove one be connecting body with power take-off between coordinate seam, connecting body end face groove two are connecting bodys with gear pump front pump cover between coordinate seam, the sidewall of connecting body is provided with and detects hole, detecting hole seals by screwed plug, spline connecting sleeve is movably placed in connecting body and power take-off endoporus, spline connecting sleeve left end internal spline and power take-off output shaft spline joint, spline connecting sleeve right-hand member internal spline and transmission shaft left end spline joint, transmission shaft is installed on double-row angular contact bal bearing, double-row angular contact bal bearing is contained in the left end of gear pump front pump cover, between gear pump front pump cover left end and connecting body right-hand member, with connecting bolt, be connected with tightening nut, the internal spline of transmission shaft right-hand member and driving shaft left end spline joint, driving shaft installs in the sliding bearing on gear pump front pump cover, gear pump front pump cover is contained on gear pump, on driving shaft, be set with two outside framework oil seals, between two outside framework oil seals, tetrafluoro baffle plate is housed, outside framework oil seal and tetrafluoro baffle plate are contained in gear pump front pump cover.
The beneficial effects of the utility model are: traditional universal drive shaft is connected the special-purpose direct insertion gear pump of spline housing float type power take-off and hanger suspending mode changes spline housing float type Placement into, the installation size cantilever of oil hydraulic pump is dwindled, simplify the structure, eliminated the unbalanced potential safety hazard of transmission shaft, reduced cost, between connecting body and oil hydraulic pump and power take-off, be equipped with the connecting body end face groove of location, improved the coaxality of power take-off and gear pump, extended the working life of gear pump and power take-off, the sidewall of connecting body is provided with and detects hole, whether convenient observation power take-off and gear pump be abnormal.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, with embodiment, illustrate.
Fig. 1 is the special-purpose direct insertion gear pump structure sectional view of spline housing float type power take-off.
Fig. 2 is the left side view of Fig. 1.
In figure, 1-spline connecting sleeve; 2-connecting body; 2-1-connecting body end face groove one; 2-2-connecting body end face groove two; 3-detects hole; 4-screwed plug; 5-double-row angular contact bal bearing; 6-transmission shaft; 7-tetrafluoro baffle plate; 8-outside framework oil seal; 9-driving shaft; 10-gear pump front pump cover; 11-gear pump; 12-power take-off; 13-connecting bolt; 14-tightening nut.
Embodiment
Embodiment, with reference to accompanying drawing 1,2, the left side of the connecting body 2 of the special-purpose direct insertion gear pump of spline housing float type power take-off is provided with connecting body end face groove one 2-1, right side is provided with connecting body end face groove two 2-2, connecting body end face groove one 2-1 be connecting body 2 with power take-off 12 between coordinate seam, connecting body end face groove 2-2 be connecting body 2 with gear pump front pump cover 10 between coordinate seam, the sidewall of connecting body 2 is provided with and detects hole 3, detects hole 3 use screwed plugs 4 and seals.Spline connecting sleeve 1 is movably placed in connecting body 2 and power take-off 12 endoporus, the output shaft spline joint of spline connecting sleeve 1 left end internal spline and power take-off 12, spline connecting sleeve 1 right-hand member internal spline and transmission shaft 6 left end spline joints, transmission shaft 6 is installed on double-row angular contact bal bearing 5, and double-row angular contact bal bearing 5 is contained in the left end of gear pump front pump cover 10.Between gear pump front pump cover 10 left ends and connecting body 2 right-hand members, with connecting bolt 13, be connected with tightening nut 14, the internal spline of transmission shaft 6 right-hand members and driving shaft 9 left end spline joints, driving shaft 9 is installed in the sliding bearing of gear pump front pump cover 10, and gear pump front pump cover 10 is contained on gear pump 11.On driving shaft 9, be set with between 8, two outside framework oil seals 8 of two outside framework oil seals tetrafluoro baffle plate 7 is housed, outside framework oil seal 8 and tetrafluoro baffle plate 7 are contained in gear pump front pump cover 10.
The working principle of the special-purpose direct insertion gear pump of spline housing float type power take-off is: between two outside framework oil seals 8 between gear pump front pump cover 10 and driving shaft 9, tetrafluoro baffle plate 8 is housed, can effectively avoids outside framework oil seal 8 to turn over lip under the working state of high pressure.The in-built double-row angular contact bal bearing 5 of gear pump front pump cover 10 can bear radial and axial connected load simultaneously, the left and right twocouese displacement of restriction transmission shaft 6.Connecting body 2 two ends are arranged on the flange of gear pump front pump cover 10 and power take-off 12 by securing means respectively, connecting body 2 is hollow, in the middle of spline connecting sleeve 1 floats and is placed in, the driving shaft 9 of one end connection teeth wheel pump 11, the other end connects the output shaft of power take-off 12, power take-off 12 connects as one with gear pump 11 like this, and volume is less, and weight is lighter.Connecting body end face groove one 2-1 on the end face that connecting body 2 is connected with gear pump 11 with power take-off 12 and connecting body end face groove two 2-2 have improved coaxial precision, make rotation steadily, and Strength Safety is reliable, has extended the working life of gear pump 11 and power take-off 12.
Claims (1)
1. the special-purpose direct insertion gear pump of a spline housing float type power take-off, comprise gear pump (11), gear pump front pump cover (10), driving shaft (9), outside framework oil seal (8), tetrafluoro baffle plate (7), double-row angular contact bal bearing (5), power take-off (12), it is characterized in that connecting body (2) left side is provided with connecting body end face groove one (2-1), right side is provided with connecting body end face groove two (2-2), connecting body end face groove one (2-1) be connecting body (2) with power take-off (12) between coordinate seam, connecting body end face groove two (2-2) be connecting body (2) with gear pump front pump cover (10) between coordinate seam, the sidewall of connecting body (2) is provided with and detects hole (3), detect screwed plug (4) sealing for hole (3), spline connecting sleeve (1) is movably placed in connecting body (2) and power take-off (12) endoporus, spline connecting sleeve (1) left end internal spline and power take-off (12) output shaft spline joint, spline connecting sleeve (1) right-hand member internal spline and transmission shaft (6) left end spline joint, transmission shaft (6) is installed on double-row angular contact bal bearing (5), double-row angular contact bal bearing (5) is contained in the left end of gear pump front pump cover (10), between gear pump front pump cover (10) left end and connecting body (2) right-hand member, with connecting bolt (13), be connected with tightening nut (14), the internal spline of transmission shaft (6) right-hand member and driving shaft (9) left end spline joint, driving shaft (9) installs in the sliding bearing on gear pump front pump cover (10), gear pump front pump cover (10) is contained on gear pump (11), the upper suit of driving shaft (9) two outside framework oil seals (8), tetrafluoro baffle plate (7) is housed between two outside framework oil seals (8), outside framework oil seal (8) and tetrafluoro baffle plate (7) are contained in gear pump front pump cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320495081.8U CN203404076U (en) | 2013-08-14 | 2013-08-14 | Direct insertion type gear pump special for spline sleeve floating type power takeoff unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320495081.8U CN203404076U (en) | 2013-08-14 | 2013-08-14 | Direct insertion type gear pump special for spline sleeve floating type power takeoff unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404076U true CN203404076U (en) | 2014-01-22 |
Family
ID=49940016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320495081.8U Expired - Lifetime CN203404076U (en) | 2013-08-14 | 2013-08-14 | Direct insertion type gear pump special for spline sleeve floating type power takeoff unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404076U (en) |
-
2013
- 2013-08-14 CN CN201320495081.8U patent/CN203404076U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
|
| CX01 | Expiry of patent term |