CN206290430U - A kind of external gear for fluid transmission pump - Google Patents

A kind of external gear for fluid transmission pump Download PDF

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Publication number
CN206290430U
CN206290430U CN201621231004.1U CN201621231004U CN206290430U CN 206290430 U CN206290430 U CN 206290430U CN 201621231004 U CN201621231004 U CN 201621231004U CN 206290430 U CN206290430 U CN 206290430U
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CN
China
Prior art keywords
gear
mass
dovetail
gear teeth
gear mass
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201621231004.1U
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Chinese (zh)
Inventor
刘小虎
吴斌
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Individual
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Individual
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Publication date
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Priority to CN201621231004.1U priority Critical patent/CN206290430U/en
Application granted granted Critical
Publication of CN206290430U publication Critical patent/CN206290430U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is related to a kind of external gear for fluid transmission pump, including gear mass and several gear teeth being arranged on gear mass axial end, gear mass center is provided with mounting hole, multiple dovetail tangs are provided with the axial end of gear mass, the lower end of the gear teeth offers the dovetail groove matched with dovetail tangs, and dovetail tangs are fixed with the dovetail groove on the gear teeth by bearing pin.In the utility model, the power transmission shaft of motor will be arranged in the mounting hole of gear mass to drive gear mass to rotate, pin-and-hole is offered in dovetail tangs and dovetail groove, the gear teeth are attached with gear mass by way of dovetail tangs are engaged with dovetail groove, dismantled more convenient.When breaking down, bearing pin is taken out can be extracted the gear teeth out from gear mass.After having changed, installment work can be completed during bearing pin is inserted into pin-and-hole, it is simple to operate.The utility model only needs to be changed for the gear teeth of fracture or unfilled corner, it is to avoid changes whole external gear, is saved greatly production cost.

Description

A kind of external gear for fluid transmission pump
Technical field
The utility model is related to a kind of external gear, more particularly to a kind of external gear for fluid transmission pump.
Background technology
Fluid transmission pump wheel pump is to rely on the swept volume formed between pumping cylinder and meshing gear change and movement to convey Liquid is allowed to the drum pump being pressurized.Two closing spaces are constituted by two gears, the pump housing and front and rear covers, when pinion rotation, The volume in space of side of being out of gear becomes big from small, forms vacuum, draws liquid into, and the volume in the space of gear engagement side is from big Diminish, and during liquid clamp-oned into pipeline.Suction chamber is to lean on two path of contacts of gear to separate with discharge chamber.Fluid is transmitted The pressure of the outlet of pump depends entirely on the size of resistance at pump discharge.Fluid transmission pump pump is divided into external gear rotary pump and interior Intermeshing gear pump, wherein crescent gear pump are adapted to liquid of the transmission with certain viscosity due to its special structure.Tradition Crescent gear pump to use internal gear be the design of driving wheel, external gear is driven pulley.This suitable transmission organic acid of design, The fluid with certain viscosity such as animal tallow, rape oil, but for the fluid with high viscosity, traditional internal messing tooth Wheel pump occurs that efficiency of transmission is low in transmission, in addition cannot normal work the problems such as.In order to solve these problems, it is proposed that A kind of transfer pump of high viscosity fluid, it is driving wheel to use external gear, and production efficiency has been significantly increased.
But in Meshing Process of Spur Gear, the gear teeth of external gear can be because the fracture of certain reason or unfilled corner, traditional fluid Transmission pump must just change whole external gear, and production cost is higher.
Utility model content
The defect of whole external gear will be changed to solve gear breaking or unfilled corner, the utility model is special to provide a kind of for flowing The external gear of body transmission pump.
The technical solution of the utility model is as follows:
A kind of external gear for fluid transmission pump, including gear mass and be arranged on some on gear mass axial end The individual gear teeth, gear mass center is provided with mounting hole, and multiple dovetail tangs, the lower end of the gear teeth are provided with the axial end of gear mass The dovetail groove matched with dovetail tangs is offered, dovetail tangs are fixed with the dovetail groove on the gear teeth by bearing pin;The gear Annular groove is offered on body, shock ring is fixed with annular groove.In this programme, the power transmission shaft of motor will be arranged on gear mass To drive gear mass to rotate in mounting hole, pin-and-hole is offered in dovetail tangs and dovetail groove, the gear teeth pass through dovetail with gear mass The mode that is engaged with dovetail groove of projection is attached raised bigger with groove contact area compared with other, and connection is more firm. During failure, bearing pin is taken out can be extracted the gear teeth out from gear mass.After having changed, can be complete during bearing pin is inserted into pin-and-hole It is simple to operate into installment work.This programme only needs to be changed for the gear teeth of fracture or unfilled corner, it is to avoid change whole external tooth Wheel, is saved greatly production cost.Annular groove is offered on the gear mass, shock ring is fixed with annular groove.Gear mass Easily it is pressurized during running and produces deformation, so as to produce vibrations, the setting of shock ring serves preferably cushioning effect, helps gear Body reduces deformation, reduces vibrations, reduces noise.
As preferred structure of the present utility model, damping paint is provided with the outer surface of the gear teeth.Gear teeth outer surface The damping paint of upper setting efficiently reduces the friction when gear teeth are meshed with internal gear, increased the service life of the gear teeth.
Further, the shock ring is rubber ring.Rubber ring has elastic force, and buffering effect is preferable.
For the utility model is better achieved, keyway is provided with the mounting hole.Keyway in this programme is used to pass Moving axis is connected in mounting hole, and making between the two being capable of transmitting torque.
Further, it is additionally provided with mounting groove on the mounting hole.Mounting groove be provided for place elastic collar, elasticity Collar is used to increase the friction of mounting hole and transmission between centers, beneficial to the firm installation of power transmission shaft.
In sum, the beneficial effects of the utility model are:
1st, the power transmission shaft of motor will be arranged on to drive gear mass to rotate in the mounting hole of gear mass, dovetail tangs and dovetail Pin-and-hole is offered on groove, the gear teeth are attached convex compared with other with gear mass by way of dovetail tangs are engaged with dovetail groove Rise it is bigger with groove contact area, connection it is more firm.When breaking down, bearing pin is taken out can be by the gear teeth from gear mass Extract out.After having changed, installment work can be completed during bearing pin is inserted into pin-and-hole, it is simple to operate.This programme only need for fracture or The gear teeth of unfilled corner are changed, it is to avoid changed whole external gear, be saved greatly production cost.Gear mass is easily received when operating Pressure produces deformation, so as to produce vibrations, the setting of shock ring serves preferably cushioning effect, helps gear mass to reduce deformation, Vibrations are reduced, noise is reduced.
2nd, the damping paint set on gear teeth outer surface efficiently reduces the friction when gear teeth are meshed with internal gear, increases The service life of the gear teeth is added.
3rd, rubber ring has elastic force, and buffering effect is preferable.
4th, keyway is used to be connected to power transmission shaft in mounting hole, and making between the two being capable of transmitting torque.
5th, mounting groove be provided for place elastic collar, elastic collar is used to increasing mounting hole and is rubbed between centers is driven Wipe, beneficial to the firm installation of power transmission shaft.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the external gear for fluid transmission pump;
Fig. 2 is the structural representation that dovetail tangs match with dovetail groove;
Parts title wherein corresponding to reference is as follows:1- gear masses, the 2- gear teeth, 3- mounting holes, 4- dovetails are convex Rise, 5- dovetail grooves, 6- annular grooves, 7- shock rings, 8- keyways, 9- mounting grooves.
Specific embodiment
For the utility model is better achieved, below in conjunction with the accompanying drawings and specific embodiment the utility model is done further in detail Carefully illustrate, but implementation method of the present utility model is not limited to this.
As shown in Figure 1 and Figure 2, a kind of external gear for fluid transmission pump, including gear mass 1 and it is arranged on gear mass 1 Several gear teeth 2 on axial end, the center of gear mass 1 is provided with mounting hole 3, is provided with the axial end of gear mass 1 many Individual dovetail tangs 4, the lower end of the gear teeth 2 offers the dovetail groove 5 matched with dovetail tangs 4, the swallow in dovetail tangs 4 and the gear teeth Stern notch 5 is fixed by bearing pin;Offered on the gear mass 1 in annular groove 6, annular groove 6 and be fixed with shock ring 7.In this implementation In example, the power transmission shaft of motor will be arranged on to drive gear mass 1 to rotate in the mounting hole 3 of gear mass 1, dovetail tangs 4 and dovetail Offer pin-and-hole on groove 5, the gear teeth 2 and gear mass 1 be attached by way of dovetail tangs 4 are engaged with dovetail groove 5 compared with Other are raised bigger with groove contact area, connect more firm.When breaking down, bearing pin is taken out can be by the gear teeth from tooth Extracted out on wheel body.After having changed, installment work can be completed during bearing pin is inserted into pin-and-hole, it is simple to operate.The present embodiment only needs pin The gear teeth 2 to fracture or unfilled corner are changed, it is to avoid changed whole external gear, be saved greatly production cost.Gear mass 1 is transported Easily it is pressurized when making and produces deformation, so as to produce vibrations, the setting of shock ring 7 serves preferably cushioning effect, helps gear Body 1 reduces deformation, reduces vibrations, reduces noise.
As preferred structure of the present utility model, damping paint is provided with the outer surface of the gear teeth 2.The appearance of the gear teeth 2 The damping paint set on face efficiently reduces the friction when gear teeth 2 are meshed with internal gear, increased the use longevity of the gear teeth 2 Life.
Further, the shock ring 7 is rubber ring.In the present embodiment, rubber ring has elastic force, buffering effect compared with It is good.
For the utility model is better achieved, keyway 8 is provided with the mounting hole 3.Keyway 8 in the present embodiment is used for Power transmission shaft is connected in mounting hole 3, making between the two being capable of transmitting torque.
Further, it is additionally provided with mounting groove 9 on the mounting hole 3.Mounting groove 9 be provided for place elastic collar, Elastic collar is used to increase the friction of mounting hole 3 and transmission between centers, beneficial to the firm installation of power transmission shaft.
Embodiment 1
A kind of external gear for fluid transmission pump, it is characterised in that:Including gear mass 1 and it is arranged on the axle of gear mass 1 To several gear teeth 2 on end face, the center of gear mass 1 is provided with mounting hole 3, multiple is provided with the axial end of gear mass 1 Dovetail tangs 4, the lower end of the gear teeth 2 offers the dovetail groove 5 matched with dovetail tangs 4, the dovetail in dovetail tangs 4 and the gear teeth Groove 5 is fixed by bearing pin;Offered on the gear mass 1 in annular groove 6, annular groove 6 and be fixed with shock ring 7.
Embodiment 2
The present embodiment is provided with damping paint on the basis of embodiment 1 on the outer surface of the gear teeth 2.
Embodiment 3
On the basis of embodiment 1 or embodiment 2, the shock ring 7 is rubber ring to the present embodiment.
Embodiment 4
The present embodiment is provided with keyway 8 on the basis of embodiment 1 or embodiment 2 or embodiment 3 on the mounting hole 3.
Embodiment 5
The present embodiment is gone back on the basis of embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4 on the mounting hole 3 It is provided with mounting groove 9.
As described above, the utility model can be realized preferably.

Claims (5)

1. a kind of external gear for fluid transmission pump, it is characterised in that:Including gear mass (1) and it is arranged on gear mass (1) Several gear teeth (2) on axial end, the center of gear mass (1) offers mounting hole (3), the axial end of gear mass (1) Multiple dovetail tangs (4) are provided with face, the lower end of the gear teeth (2) offers the dovetail groove (5) matched with dovetail tangs (4), Dovetail tangs (4) are fixed with the dovetail groove (5) on the gear teeth by bearing pin, and annular groove (6), ring are offered on the gear mass (1) Shock ring (7) is fixed with shape groove (6).
2. a kind of external gear for fluid transmission pump according to claim 1, it is characterised in that:The gear teeth (2) Damping paint is provided with outer surface.
3. a kind of external gear for fluid transmission pump according to claim 1 and 2, it is characterised in that:The shock ring (7) it is rubber ring.
4. a kind of external gear for fluid transmission pump according to claim 1, it is characterised in that:The mounting hole (3) On be provided with keyway (8).
5. a kind of external gear for fluid transmission pump according to claim 1, it is characterised in that:The mounting hole (3) On be additionally provided with mounting groove (9).
CN201621231004.1U 2016-11-16 2016-11-16 A kind of external gear for fluid transmission pump Expired - Fee Related CN206290430U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621231004.1U CN206290430U (en) 2016-11-16 2016-11-16 A kind of external gear for fluid transmission pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621231004.1U CN206290430U (en) 2016-11-16 2016-11-16 A kind of external gear for fluid transmission pump

Publications (1)

Publication Number Publication Date
CN206290430U true CN206290430U (en) 2017-06-30

Family

ID=59099643

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621231004.1U Expired - Fee Related CN206290430U (en) 2016-11-16 2016-11-16 A kind of external gear for fluid transmission pump

Country Status (1)

Country Link
CN (1) CN206290430U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106640626A (en) * 2016-11-16 2017-05-10 安鹏鹏 External gear for fluid transmission pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106640626A (en) * 2016-11-16 2017-05-10 安鹏鹏 External gear for fluid transmission pump

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170630

Termination date: 20181116