CN206801777U - High-pressure gear motor - Google Patents
High-pressure gear motor Download PDFInfo
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- CN206801777U CN206801777U CN201720721556.9U CN201720721556U CN206801777U CN 206801777 U CN206801777 U CN 206801777U CN 201720721556 U CN201720721556 U CN 201720721556U CN 206801777 U CN206801777 U CN 206801777U
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- solid box
- sealing ring
- groove
- gear motor
- oil
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Abstract
The utility model discloses a kind of high-pressure gear motor, including external shell, main shaft, from axle, driving gear, driven gear and solid box, the outer face of the solid box offers seal groove, sealing ring is installed in the seal groove, the seal groove is located at the spindle hole on the solid box and the periphery from axis hole, two the first oil grooves are provided with the solid box, one end of two first oil grooves connects with the seal groove respectively, the other end extends respectively to the sub-high pressure area of the both sides of the inner face of the solid box, two the second oil grooves axisymmetricly are provided with the inner face of the sealing ring.During utility model works, the pressure oil in the sub-high pressure area of the both sides of the inner face of solid box enters seal groove by the first oil groove, subsequently into the second oil groove on the inner face of sealing ring, so one side pressure oil can promote solid box to float and is brought into close contact with face of gear, and another aspect pressure oil can promote sealing ring to float.
Description
Technical field
Gear motor field is the utility model is related to, relates in particular to a kind of high-pressure gear motor.
Background technology
Executive component of the gear motor as hydraulic system, is widely used in the engineering machines such as loading machine, excavator, crane
In the hydraulic system of tool.
The Chinese patent of Application No. 200810021263.5 discloses a kind of bidirectional geared motor, it is characterized in that setting
Cross between lid and housing, and lid and the composition surface of housing are integral seal groove behind, the integral seal groove be
Connected between outer groove and inner ring " dumbbell " groove with radial direction straight trough, the sealing of holohedral symmetry integrated high temperature high is set corresponding to seal groove
Part, including sealing ring and sealing gasket, sealing ring are the square-section with boss, and sealing gasket is reeded square-section, with close
The groove of packing and the boss of sealing ring are halved together.
Although the sealing structure of this gear motor meets the seal request of gear motor to a certain extent, still
Gap leakage be present, when seal compression is smaller, sealing property declines, and gear motor volumetric efficiency is low.
Utility model content
It is small that technical problem to be solved in the utility model is to provide a kind of leakage of end clearance, when seal compression is minimum
When, still ensure that the high-pressure gear motor of sealing property.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：High-pressure gear motor, including outside
Housing, main shaft, from axle, driving gear, driven gear and solid box, the outer face of the solid box offer sealing ring
Groove, is provided with sealing ring in the seal groove, and the seal groove is located at spindle hole on the solid box and from axis hole
Periphery, be provided with two the first oil grooves on the solid box, one end of two first oil grooves respectively with the sealing ring
Groove connects, and the other end extends respectively to the sub-high pressure area of the both sides of the inner face of the solid box, the inner of the sealing ring
Two the second oil grooves axisymmetricly are provided with face.
Further, the cross section of the solid box is in 8-shaped, and the sealing ring is corresponding described close in 8 words annular
Seal groove is also in 8 words annular.
Further, first oil groove is by being opened in the segmental arc in the sub-high pressure area of the inner face of the solid box
Groove, be opened in the solid box outer peripheral face bar segment groove and be opened in the solid box outer face short circuit section
Groove is sequentially communicated composition.
Further, two second oil grooves are using the length direction center line of the sealing ring as symmetry axis, two institutes
It is in figure-three to state one in the second oil groove.
Further, the 3rd is offered respectively on the inwall of the spindle hole on the solid box and the bearing out of axis hole
Oil groove.
Further, offered in the middle part of the outer face of the solid box connect spindle hole on the solid box and from
Respectively at the opening position of the corresponding straight trough on the straight trough of axis hole, the spindle hole on the solid box and the bearing out of axis hole
Open up jagged, be further opened with two oilholes on the solid box, one end of two oilholes connects with the straight trough respectively
Logical, the other end connects with the spindle hole on the solid box and from axis hole respectively.
Further, the outer face of the sealing ring is chimeric sealing blend stop.
Further, the sealing blend stop is by the inner sealer in 8 words annular and two width for being located at inner sealer respectively
The outer blend stop of direction both sides, which is connected, to be formed, and two outer blend stops are symmetrical and enclose to form hourglass shape, the sealing ring
Outer face is provided with two the first fins for being respectively used to be caught between two outer blend stops and the inner sealer, and two points
Second fin of the other enclosing in the length direction both sides of the inner sealer.
Further, in addition to the rolling bearing on spindle nose and the installation spindle nose, the external shell are in four vertically
Section is set, and is followed successively by protecgulum, transition cover, housing and bonnet, the both ends of the rolling bearing are respectively clamped into the rear end of the protecgulum
With the front end of the transition cover.
Further, the spindle nose is connected by splined shaft with the main shaft.
The beneficial effects of the utility model are：
During utility model works, the pressure oil in the sub-high pressure area of the both sides of the inner face of solid box passes through the first oil groove
Into seal groove, subsequently into the second oil groove on the inner face of sealing ring, such one side pressure oil can promote overall axle
Set floats and is brought into close contact with face of gear, reduces end clearance leakage, and another aspect pressure oil can promote sealing ring to float, and make when close
When sealing decrement minimum, still ensure its sealing property, so as to greatly improve the volumetric efficiency of gear motor, effectively reduce gear horse
The starting torque reached.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the utility model one.
Fig. 2 is the structural representation of the outer face of solid box in the embodiment of the utility model one.
Fig. 3 is the structural representation of the inner face of solid box in the embodiment of the utility model one.
Fig. 4 is the profile of solid box in the embodiment of the utility model one.
Fig. 5 is the profile of the embodiment middle (center) bearing of the utility model one.
Fig. 6 is the structural representation of the inner face of sealing ring in the embodiment of the utility model one.
Fig. 7 is the structural representation of the outer face of sealing ring in the embodiment of the utility model one.
Fig. 8 is the structural representation that blend stop is sealed in the embodiment of the utility model one.
Fig. 9 is the chimeric schematic diagram of sealing ring and sealing blend stop in the embodiment of the utility model one.
Figure 10 is A-A to sectional view.
In accompanying drawing the mark of each part for：1 solid box, 11 seal grooves, 12 spindle holes, 13 are from axis hole, 14 segmental arcs
Groove, 15 bar segment grooves, 16 short circuit section grooves, 17 straight troughs, 18 oilholes, 19 antennal furrows, 2 sealing rings, 21 second oil grooves, 22 feelers, 23
Locking salient point, 24 first fins, 25 second fins, 26 the 3rd fins, 31 inner sealers, 32 outer blend stops, 33 feeler blend stops, 4 bearings,
41 breach, 42 the 3rd oil grooves, protecgulum 51, transition cover 52, housing 53, bonnet 54, main shaft 61, from axle 62, splined shaft 63, driving tooth
Wheel 71, driven gear 72, spindle nose 8, rolling bearing 9.
Embodiment
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Referring to Fig. 1, Fig. 2 and Fig. 6.
The high-pressure gear motor of the embodiment of the utility model one, including external shell, main shaft 61, from axle 62, driving gear
71st, driven gear 72 and solid box 1, the outer face of the solid box 1 offer seal groove 11, the seal groove
Sealing ring 2 is installed, the seal groove 11 is located at the spindle hole 12 on the solid box 1 and outside axis hole 13 in 11
Enclose, be provided with two the first oil grooves on the solid box 1, one end of two first oil grooves respectively with the seal groove 11
Connection, the other end extend respectively to the sub-high pressure area of the both sides of the inner face of the solid box 1, the inner of the sealing ring 2
Two the second oil grooves 21 axisymmetricly are provided with face.
During utility model works, the pressure oil in the sub-high pressure area of the both sides of the inner face of solid box passes through the first oil groove
Into seal groove, subsequently into the second oil groove on the inner face of sealing ring, such one side pressure oil can promote overall axle
Set floats and is brought into close contact with face of gear, reduces end clearance leakage, and another aspect pressure oil can promote sealing ring to float, and make when close
When sealing decrement minimum, still ensure its sealing property, so as to greatly improve the volumetric efficiency of gear motor, effectively reduce gear horse
The starting torque reached.
In specific implementation, the cross section of the solid box 1 is in 8-shaped, and the sealing ring 2 is in 8 words annular, corresponding institute
Seal groove 11 is stated also in 8 words annular.
Referring to Fig. 2, Fig. 3 and Fig. 4, it is preferred that two first oil grooves are symmetrical, in one embodiment, described
One oil groove is by being opened in the segmental arc groove 14 in the sub-high pressure area of the inner face of the solid box 1, being opened in the solid box 1
Outer peripheral face bar segment groove 15 and be opened in the short circuit section groove 16 of outer face of the solid box 1 and be sequentially communicated composition.
In specific implementation, the bar segment groove 15 along the axially extending of the solid box, the segmental arc groove 14 with its middle part with
The bar segment groove 15 connects.The asphalt channel so designed, in the case where not influenceing gear motor performance, in gear motor
During work, it can guarantee that sub-high pressure area pressure oil fast and effeciently enters the second oil groove.
Referring to Fig. 6, in one embodiment, one in two second oil grooves 21 is in figure-three, two second oil
Groove 21 is using the length direction center line of the sealing ring 2 as symmetry axis.So design can guarantee that effect of the sealing ring in pressure oil
Lower stress is uniform, reaches preferable floating effect, improves sealing property.
Lubricating loop can not be formed on existing solid box, the lubrication of bearing and cooling can only rely on Bearing inner oil groove,
Easily cause that lubrication is insufficient, and thermal balance is bad, influence motor high temperature, high rotating speed, the performance under high pressure.
In order to solve this problem, referring to Fig. 2, in one embodiment, spindle hole 12 on the solid box 1 and from axle
The 3rd oil groove 42 is offered on the inwall of bearing 4 in hole 13 respectively, the both ends of the 3rd oil groove 42 extend respectively to the interior of bearing 4
Outer face.In the course of work of gear motor, axle sleeve inner face leakage pressure oil by the 3rd oil groove enter spindle hole and
From axis hole, lubricating oil film is fast and effeciently formed between bearing inner wall and axle from face.In specific implementation, the 3rd oil groove 42 along
Accordingly bearing is axially extending.
Referring to Fig. 2, Fig. 4 and Fig. 5, in a preferred embodiment, offered in the middle part of the outer face of the solid box 1
Connect the spindle hole 12 on the solid box 1 and the straight trough 17 from axis hole 13, spindle hole 12 on the solid box 1 and from
Jagged 41 are opened up respectively at the opening position of the corresponding straight trough 17 on bearing 4 in axis hole 13, is also opened on the solid box 1
Provided with two oilholes 18, one end of two oilholes 18 connects with the straight trough 17 respectively, the other end respectively with the entirety
Spindle hole 12 on axle sleeve 1 connects with from axis hole 13.DU bearings are can be selected in bearing 4, and when gear motor works, axle sleeve inner face is let out
The pressure oil of leakage enters spindle hole from the 3rd oil groove and is lubricated from axis hole, and then a part of pressure oil enters straight trough, and then
By in bearing of two oilholes into spindle hole and out of axis hole, entering back into breach, eventually passing back to straight trough, circulation is so formed
Loop, so as to fast and effeciently forming lubricating oil film between bearing inner wall and axle, good lubrication and cold is served to bearing
But act on, fully ensure that thermal balance of the gear motor under high temperature, high pressure, high speed conditions.
In specific implementation, one end of the oilhole 18 extends since the bottom wall of straight trough 17, and two oilholes 18
Connectivity points of the other end to the spindle hole 12 and from axis hole 13 be located at the spindle hole 12 and the corresponding bearing from axis hole 13
Inner opening position, such pressure oil be easier enter bearing, lubricant effect is reliable.
Referring to Fig. 6, in one embodiment, the length direction both sides of the sealing ring 2 are respectively equipped with multiple locking salient points 23.
For avoid when mounted sealing ring come off.
In one embodiment, the outer face of the sealing ring 2 is chimeric sealing blend stop.Seal blend stop gear motor it is high,
Low-pressure area can play good supporting role when exchanging to sealing ring.
Referring to Fig. 7, Fig. 8, Fig. 9 and Figure 10, in one embodiment, the sealing blend stop is by the inner sealer 31 in 8 words annular
And the connected composition of two outer blend stops 32 respectively positioned at the width both sides of inner sealer 31, two outer blend stops 32 are mutual
Symmetrically and enclose to form hourglass shape, the outer face of the sealing ring 2 is respectively used to be caught in two outer blend stops 32 provided with two
The first fin 24 between the inner sealer 31, and two difference enclosings are in the length direction both sides of the inner sealer 31
Second fin 25.So design, sealing ring and sealing blend stop are on the premise of the sealing property of bidirectional geared motor is ensured, structure
More rationally, processing is simple, is easy to assemble.
In specific implementation, sealing ring uses elastomeric material, -40 DEG C of temperature resistant range~200 DEG C, reaches what high/low temperature was taken into account
Effect.
Referring to Fig. 2 and Fig. 6, in one embodiment, the sealing ring 2 is provided with more than two feelers 22, the entirety
The outer face of axle sleeve 1, which is provided with, is used for the antennal furrow 19 that the feeler 22 is caught in.
In specific implementation, the sealing ring 2 is provided with four feelers 22, and four feelers 22 are with the length direction of sealing ring
Heart line and width center line are that symmetry axis is symmetrical.
Referring to Fig. 7 and Fig. 8, to coordinate four feelers, the both ends of the outer blend stop 32 are outward extended with feeler blend stop respectively
33, the feeler blend stop 33 is entrenched on corresponding feeler 22.Correspondingly, the outer face of the feeler 22, which is provided with, is used for enclosing institute
State the 3rd fin 26 of feeler blend stop 33.
Referring to Fig. 1, in one embodiment, in addition to spindle nose 8 and the rolling bearing 9 on the spindle nose 8, the outside are installed
Housing in four sections of settings, is followed successively by protecgulum 51, transition cover 52, housing 53 and bonnet 54, the both ends of the rolling bearing 9 vertically
It is respectively clamped into the rear end of the protecgulum 51 and the front end of the transition cover 52.The utility model is by between existing protecgulum and transition cover
By way of seam positioning, it is changed to be positioned by rolling bearing, axial dimension can be effectively reduced, cyclization is matched somebody with somebody in reduction
Section, processing and assembly difficulty are reduced, reduces cost.
Referring to Fig. 1, in one embodiment, the spindle nose 8 is connected by splined shaft 63 with the main shaft 61.The utility model
Will between existing spindle nose and main shaft cruciform joint connection by way of, be changed to be coupled by splined shaft, namely spindle nose and
The interior coupling part of gear is changed to the connection of SAE splines by existing flat key connecting, and the transmission that can effectively improve gear motor is strong
Degree, reduces axial length, improves the overall performance of gear motor, reduces processing cost.
The utility model is particularly suited for being used as bidirectional geared motor.
It should be understood that example as described herein and embodiment are not limited to the utility model, originally only for explanation
Art personnel can make various modifications or change according to it, all within the spirit and principles of the utility model, be made
Any modification, equivalent substitution and improvements etc., should be included within the scope of protection of the utility model.
Claims (10)
1. high-pressure gear motor, including external shell, main shaft (61), from axle (62), driving gear (71), driven gear (72) with
And solid box (1), it is characterised in that：The outer face of the solid box (1) offers seal groove (11), the sealing ring
Sealing ring (2) is installed in groove (11), the seal groove (11) be located at spindle hole (12) on the solid box (1) and from
The periphery of axis hole (13), is provided with two the first oil grooves on the solid box (1), one end of two first oil grooves respectively with
Seal groove (11) connection, the other end extend respectively to the sub-high pressure area of the both sides of the inner face of the solid box (1),
Two the second oil grooves (21) axisymmetricly are provided with the inner face of the sealing ring (2).
2. high-pressure gear motor as claimed in claim 1, it is characterised in that：The cross section of the solid box (1) is in 8 words
Shape, the sealing ring (2) is in 8 words annular, and the corresponding seal groove (11) is also in 8 words annular.
3. high-pressure gear motor as claimed in claim 1 or 2, it is characterised in that：First oil groove is described whole by being opened in
The segmental arc groove (14) in the sub-high pressure area of the inner face of body axle sleeve (1), be opened in the solid box (1) outer peripheral face bar shaped
Section groove (15) and it is opened in the short circuit section groove (16) of outer face of the solid box (1) and is sequentially communicated composition.
4. high-pressure gear motor as claimed in claim 1 or 2, it is characterised in that：Two second oil grooves (21) are with described
The length direction center line of sealing ring (2) is symmetry axis, and one in two second oil grooves (21) is in figure-three.
5. high-pressure gear motor as claimed in claim 1 or 2, it is characterised in that：Spindle hole on the solid box (1)
(12) the 3rd oil groove (42) is offered respectively on the inwall of the bearing (4) and out of axis hole (13).
6. high-pressure gear motor as claimed in claim 5, it is characterised in that：Opened in the middle part of the outer face of the solid box (1)
The spindle hole (12) being communicated with the solid box (1) and the straight trough (17) from axis hole (13), on the solid box (1)
Spindle hole (12) and bearing (4) out of axis hole (13) on respectively at the corresponding straight trough (17) opening position open up it is jagged
(41), be further opened with two oilholes (18) on the solid box (1), one end of two oilholes (18) respectively with it is described straight
Groove (17) connects, and the other end connects with the spindle hole (12) on the solid box (1) and from axis hole (13) respectively.
7. high-pressure gear motor as claimed in claim 1 or 2, it is characterised in that：The outer face of the sealing ring (2) is chimeric to be had
Seal blend stop.
8. high-pressure gear motor as claimed in claim 7, it is characterised in that：The sealing blend stop is by the interior gear in 8 words annular
Bar (31) and two outer blend stops (32) respectively positioned at the width both sides of inner sealer (31), which are connected, to be formed, and two described outer
Blend stop (32) is symmetrical and encloses to form hourglass shape, and the outer face of the sealing ring (2) is respectively used to be caught in two provided with two
The first fin (24) described in bar between outer blend stop (32) and the inner sealer (31), and two difference enclosings are in the interior gear
The second fin (25) of the length direction both sides of bar (31).
9. high-pressure gear motor as claimed in claim 1 or 2, it is characterised in that：Also include spindle nose (8) and the installation spindle nose
(8) rolling bearing (9) on, the external shell in four sections of settings, are followed successively by protecgulum (51), transition cover (52), shell vertically
Body (53) and bonnet (54), the both ends of the rolling bearing (9) are respectively clamped into the rear end of the protecgulum (51) and the transition cover
(52) front end.
10. high-pressure gear motor as claimed in claim 9, it is characterised in that：The spindle nose (8) passes through splined shaft (63) and institute
State main shaft (61) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721556.9U CN206801777U (en) | 2017-06-20 | 2017-06-20 | High-pressure gear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721556.9U CN206801777U (en) | 2017-06-20 | 2017-06-20 | High-pressure gear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206801777U true CN206801777U (en) | 2017-12-26 |
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ID=60748051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720721556.9U Active CN206801777U (en) | 2017-06-20 | 2017-06-20 | High-pressure gear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206801777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061138A (en) * | 2017-06-20 | 2017-08-18 | 合肥长源液压股份有限公司 | High-pressure gear motor |
-
2017
- 2017-06-20 CN CN201720721556.9U patent/CN206801777U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061138A (en) * | 2017-06-20 | 2017-08-18 | 合肥长源液压股份有限公司 | High-pressure gear motor |
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