CN202140347U - Water pump cover structure - Google Patents

Water pump cover structure Download PDF

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Publication number
CN202140347U
CN202140347U CN201120258929U CN201120258929U CN202140347U CN 202140347 U CN202140347 U CN 202140347U CN 201120258929 U CN201120258929 U CN 201120258929U CN 201120258929 U CN201120258929 U CN 201120258929U CN 202140347 U CN202140347 U CN 202140347U
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CN
China
Prior art keywords
water
lid
pump cover
water pump
cavity
Prior art date
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
CN201120258929U
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Chinese (zh)
Inventor
王胜华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lifan Technology Group Co Ltd
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Lifan Industry Group Co Ltd
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Publication date
Application filed by Lifan Industry Group Co Ltd filed Critical Lifan Industry Group Co Ltd
Priority to CN201120258929U priority Critical patent/CN202140347U/en
Application granted granted Critical
Publication of CN202140347U publication Critical patent/CN202140347U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a water pump cover structure, which comprises a cover body (1). A water inlet nozzle (1a) and a supporting lug (1e) are arranged on the cover body (1), a water outlet nozzle (1b) is further arranged on the cover body (1), and a water cavity (1c) is arranged on the inner wall of the cover body (1). The water cavity (1c) is in an involute shape, and a smallest portion of the water cavity (1c) is communicated with an inner hole of the water inlet nozzle (1a). By changing the structure of the water pump cover, the water pump cover structure can avoid water leakage of the water nozzles, effectively improves water pumping quality, ensures water cooling effects of an engine and has the advantages of being simple in structure, easy to reform, convenient to assemble, low in cost and the like.

Description

A kind of water pump cover structure
Technical field
The utility model relates to a kind of motorcycle member, specifically, and the particularly water pump cover on the cooling motorcycle water.
Background technique
Water pump is the vitals of cooling motorcycle water hydrologic cycle cooling system.Cooling motorcycle water is provided with cooling water tank, and the water in the cooling water tank is drawn into cylinder through water pump and carries out cool cycles, and then gets back to cooling water tank, accomplishes a water cycle cooling procedure.Like Fig. 6, shown in Figure 7, water pump is installed on the upper right quarter of right crankcase cover 3, form with the water pump cover two large divisions by impeller assembly 2, and through clutch driving gear drive work.The water inlet tap 1a of water pump is positioned on the lid 1 of water pump cover, and water outlet 1b is positioned on the right crankcase cover 3.Between lid 1 and right crankcase cover 3, be formed with involute shape water cavity, water pump vane pumps the water that comes and flows in the cylinder through this water cavity.The screw that discharges water of water pump is arranged in right crankcase with the bolt 4 that discharges water and covers, so that in needs, the water in the hydrologic cycle cooling system is all emitted.The deficiency of above structure is:
1) water outlet of water pump is independent member, and with right crankcase cover between adopt to press-fit and cooperate, one side needs independent processing and fabricating and installation, cost is higher; On the other hand, press-fiting quality directly influences its sealability, strict to assembly process, occurs the water nozzle water leakage phenomenon easily.
2) the involute shape water cavity that is formed with between water pump cover and the right crankcase cover is on two parts; Current need corner could get into the motor water pipe through this water cavity when terminal to get in the cylinder block again; Be easy to generate cavitation erosion and energy loss, thereby reduce the pump water yield, influence the water-cooled effect of motor.
3) bolt arrangement that discharges water of water pump covers at right crankcase, and this place is easy to generate trachoma, and water leak detection gas is more, often discharges water because of needs simultaneously, and the dismounting frequency is high, occurs the screw situation that gets a tooth pulled out easily, also can cause right crankcase cover to be scrapped.
4) water pump cover and right crankcase cover joint close gap require sternly, and slit between the two is not easy control, because of reasons such as processing and die wears, are prone to water pump cover and right crankcase cover interferes phenomenon.
The model utility content
The utility model technical problem to be solved is to provide a kind of water pump cover structure that can avoid water nozzle to leak, also can effectively improve the pump water yield.
The technological scheme of the utility model is following: a kind of water pump cover structure; Comprise lid (1), on lid (1), be provided with water inlet tap (1a), water outlet (1b) and journal stirrup (1e), the inwall of lid (1) is provided with water cavity (1c); This water cavity (1c) changes from small to big; Be involute shape, the endoporus of water inlet tap (1a) is connected with the small end of water cavity (1c), and the endoporus of water outlet (1b) is connected with the big end of water cavity (1c).
More excellent scheme is: the endoporus of said water inlet tap (1a) is connected with the minimum place of water cavity (1c), and the endoporus of water outlet (1b) is connected with the biggest place of water cavity (1c).
The utility model will pass in and out on the lid that water nozzle all is arranged on water pump cover, and the operation of reduced independent making on the one hand, water outlet being installed has reduced cost of production, on the other hand, has avoided press-fiting the water nozzle water leakage phenomenon that quality causes because of water outlet; Involute shape water cavity is integrated in the lid inwall, and water pump pumps the water that comes does not need corner just can directly get in the motor water pipe inflow cylinder block, has reduced the flow energy loss; And the endoporus of water inlet tap is connected with the small end of water cavity, and the endoporus of water outlet is connected with the big end of water cavity; Prevented that not only the water that gets into water cavity from refluxing; And further having reduced the flow energy loss, this structure has improved the pump water yield very effectively, has guaranteed the water-cooled effect of motor; Water pump cover is as a separate component, and is not tight with the requirement of right crankcase cover matching gap, more helps quick assembling; Simultaneously, by traditional central authorities that the right crankcase cover upper right quarter changes the right crankcase cover bottom into that are positioned at, flowing cold water has certain cooling action to the lubricant oil in the crankcase to water pump in the water pump, helps promoting the performance of motor together with the mounting point of lid.
Have water outlet screw (1d) in the bottom of said lid (1), this water outlet screw (1d) communicates with water cavity (1c).The water outlet screw is used for installing the bolt that discharges water, and the position of the water outlet screw and the bolt that discharges water is moved to the lid of water pump cover by right crankcase cover, the water leak detection gas situation that can avoid the trachoma because of right crankcase cover to cause.
For the ease of manufacturing, further reduce cost, said water inlet tap (1a), water outlet (1b) and lid (1) are the integrative-structure of die cast.
All be formed with journal stirrup (1e) in the right ends at said lid (1) top and the right ends of bottom, offer circular pilot hole on each journal stirrup (1e).Screw passes the pilot hole on the journal stirrup and extend in the screw that right crankcase covers, and water pump cover and right crankcase cover are fixed together.Lid is fixed through four points and right crankcase cover, easy accessibility, connect firm.
For simplified structure, be convenient to pipeline and connect and help water pipe and arrange; Said water inlet tap (1a) and water outlet (1b) are positioned between the last down journal of lid (1) right-hand member; Water inlet tap (1a) is in the below of water outlet (1b); Both are parallel to each other, water inlet tap (1a) and water outlet (1b) all with inner port in last external port in the setting that has a down dip.
Beneficial effect: the utility model can be avoided water nozzle to leak, and effectively improve the pump water yield through changing the structure of water pump cover, has guaranteed the water-cooled effect of motor, has characteristics such as simple in structure, that transformation is easy, easy to assembly, cost is low.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the rear view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the layout schematic representation of impeller assembly and water pump cover lid in the utility model.
The layout schematic representation that Fig. 5 covers at right crankcase for lid in the utility model.
Fig. 6 is the structural representation of background technique.
Fig. 7 is the layout schematic representation of impeller assembly and water pump cover lid in the background technique.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Like Fig. 4, shown in Figure 5, water pump is made up of water pump cover and impeller assembly 2 two large divisions.Neutral position in right crankcase cover 3 bottoms offers positioning hole; This positioning hole place mounted impeller assembly 2; Impeller assembly 2 comprises members such as impeller, water pump spindle, driving gear, bearing, seal ring, and the annexation of each member is identical with existing technology, does not do at this and gives unnecessary details.And the driving gear in the impeller assembly 2 is meshed with the clutch driven gear, drives pump working by the clutch driven gear.
Can know that from Fig. 1, Fig. 2 and Fig. 5 in the outside of the positioning hole of right crankcase cover 3 lower middle position water pump cover is set, this water pump cover has lid 1, lid 1 is gone into the impeller chimney in the impeller assembly 2 wherein.All be formed with journal stirrup 1e in the right ends at lid 1 top and the right ends of bottom; Offer circular pilot hole on each journal stirrup 1e; Screw passes the pilot hole on the journal stirrup 1e and extend in the screw on the right crankcase cover 3, and lid 1 and right crankcase cover 3 are fixed together.Said lid 1 is provided with water inlet tap 1a and water outlet 1b, and water inlet tap 1a, water outlet 1b and lid 1 are the integrative-structure of die cast.Water inlet tap 1a and water outlet 1b are on lid 1 right-hand member between the down journal, and water inlet tap 1a is below water outlet 1b, and both are parallel to each other, said water inlet tap 1a and water outlet 1b all with inner port in last external port in the setting that has a down dip.
From Fig. 1, Fig. 2 and Fig. 3, can know; On the inwall of lid 1, be provided with water cavity 1c, 1c is ascending for this water cavity, is involute shape; The minimum place of water cavity 1c is connected with the endoporus of water inlet tap 1a, and the end of water cavity 1c is that the biggest place of water cavity is connected with the endoporus of water outlet 1b.Have water outlet screw 1d in the bottom of said lid 1, this water outlet screw 1d communicates with water cavity 1c, and in water outlet screw 1d, the bolt 4 that discharges water is installed, and bolt 4 and water outlet screw 1d screw-thread fit discharge water.
In the utility model, water outlet 1b is connected with cylinder block through motor water pipe 5, and water inlet tap 1a is connected with cooling water tank through heat dissipation pipe's (not drawing among the figure).When the clutch driven gear drove the impeller rotation of water pump, the water among the heat dissipation pipe and behind water cavity 1c, from water outlet 1b inflow engine water pipe 5, got in the cylinder block in water inlet tap 1a flows into water pump again.

Claims (6)

1. a water pump cover structure has lid (1), on lid (1), is provided with water inlet tap (1a) and journal stirrup (1e); It is characterized in that: on said lid (1), also be provided with water outlet (1b); The inwall of lid (1) is provided with water cavity (1c), and this water cavity (1c) changes from small to big, and is involute shape; The endoporus of water inlet tap (1a) is connected with the small end of water cavity (1c), and the endoporus of water outlet (1b) is connected with the big end of water cavity (1c).
2. water pump cover structure according to claim 1 is characterized in that: the endoporus of said water inlet tap (1a) is connected with the minimum place of water cavity (1c), and the endoporus of water outlet (1b) is connected with the biggest place of water cavity (1c).
3. water pump cover structure according to claim 1 is characterized in that: have water outlet screw (1d) in the bottom of said lid (1), this water outlet screw (1d) communicates with water cavity (1c).
4. according to claim 1 or 2 or 3 described water pump cover structures, it is characterized in that: said water inlet tap (1a), water outlet (1b) and lid (1) are the integrative-structure of die cast.
5. water pump cover structure according to claim 4 is characterized in that: all be formed with journal stirrup (1e) in the right ends at said lid (1) top and the right ends of bottom, offer circular pilot hole on each journal stirrup (1e).
6. water pump cover structure according to claim 5; It is characterized in that: said water inlet tap (1a) and water outlet (1b) are positioned between the last down journal of lid (1) right-hand member; Water inlet tap (1a) is in the below of water outlet (1b); Both are parallel to each other, water inlet tap (1a) and water outlet (1b) all with inner port in last external port in the setting that has a down dip.
CN201120258929U 2011-07-21 2011-07-21 Water pump cover structure Expired - Fee Related CN202140347U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120258929U CN202140347U (en) 2011-07-21 2011-07-21 Water pump cover structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120258929U CN202140347U (en) 2011-07-21 2011-07-21 Water pump cover structure

Publications (1)

Publication Number Publication Date
CN202140347U true CN202140347U (en) 2012-02-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120258929U Expired - Fee Related CN202140347U (en) 2011-07-21 2011-07-21 Water pump cover structure

Country Status (1)

Country Link
CN (1) CN202140347U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322328A (en) * 2011-07-21 2012-01-18 力帆实业(集团)股份有限公司 Water-cooling motorcycle water pump cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322328A (en) * 2011-07-21 2012-01-18 力帆实业(集团)股份有限公司 Water-cooling motorcycle water pump cover

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120208

Termination date: 20150721

EXPY Termination of patent right or utility model