CN209943176U

CN209943176U - Serial-type water pump bearing connection structure

Info

Publication number: CN209943176U
Application number: CN201920726748.8U
Authority: CN
Inventors: 陈自飞
Original assignee: Suzhou Mattely Automotive Parts Co Ltd
Current assignee: Suzhou Mattely Automotive Parts Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-01-14
Anticipated expiration: 2029-05-21

Abstract

The utility model discloses a serial-type water pump bearing connection structure, including locating the first bearing and the second bearing of interconnect in the water pump shell body, locate the belt pulley of first bearing outer end to and locate the impeller of second bearing outer end, the water pump shell body includes the procapsid of the first bearing of holding, the back casing of holding second bearing and connects the back lid of back casing, the mandrel end bilateral symmetry of first bearing is equipped with the locating piece, the mandrel end of second bearing is equipped with the constant head tank of pegging graft with the corresponding matching of locating piece, the surface of locating piece is equipped with the arcwall face, the junction of back casing and back lid forms high-pressure liquid chamber of crossing, the external connection of back lid has the inlet of crossing the liquid chamber intercommunication with high pressure, the external connection of back casing has the liquid outlet of crossing the liquid chamber intercommunication with high pressure. The utility model discloses it is reasonable to realize the impeller atress, improves the bearing life-span.

Description

Serial-type water pump bearing connection structure

Technical Field

The utility model belongs to the technical field of the water pump, especially, relate to a serial-type water pump bearing connection structure.

Background

In the traditional water pump structure, two ends of a shaft connecting bearing are respectively connected with a belt pulley and an impeller, and the working vibration of the impeller and the overlarge axial clearance of the bearing are caused by the overlong cantilever of a mandrel of the shaft connecting bearing, so that the bounce value of the mandrel at the end part of the impeller is difficult to control in a reasonable range; because the dabber of shaft coupling bearing is beated great, and then lead to the friction aggravation of the rotating ring and the quiet ring of water seal, the water seal wearing and tearing are serious, reduce the life-span of bearing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem and providing a serial-type water pump bearing connection structure to it is reasonable to realize the impeller atress, improves the bearing life-span. In order to achieve the above purpose, the utility model discloses technical scheme as follows:

series-type water pump bearing connection structure, including locating the first bearing and the second bearing of interconnect in the water pump shell body, locate the belt pulley of first bearing outer end to and locate the impeller of second bearing outer end, the water pump shell body includes the procapsid of the first bearing of holding, the back casing of holding second bearing and connects the back lid of back casing, the mandrel end bilateral symmetry of first bearing is equipped with the locating piece, the mandrel end of second bearing is equipped with the constant head tank of pegging graft with the corresponding matching of locating piece, the surface of locating piece is equipped with the arcwall face, the junction of back casing and back lid forms high pressure and crosses the sap cavity, the external connection of back lid has and passes the inlet of sap cavity intercommunication with high pressure, the external connection of back casing has and passes the liquid outlet of sap cavity intercommunication with high pressure.

Specifically, the belt pulley is connected with a mandrel of the first bearing in an interference fit manner.

Specifically, the front shell and the rear shell are connected through a plurality of first bolts.

Specifically, a water seal is arranged at the joint of the impeller and a mandrel of the second bearing, and the impeller is connected with the mandrel of the second bearing in an interference fit manner.

Specifically, the rear shell is connected with the rear cover through a plurality of second bolts.

Specifically, a roller and a first rolling ball are sleeved on a mandrel of the first bearing, a first shaft sleeve is sleeved outside the roller and the first rolling ball, and the first shaft sleeve is connected with the front shell in an interference fit mode.

Specifically, the mandrel of the second bearing is sleeved with a plurality of second rolling balls, a second shaft sleeve is sleeved outside the second rolling balls, and the second shaft sleeve is connected with the rear shell in an interference fit mode.

Compared with the prior art, the utility model discloses serial-type water pump bearing connection structure's beneficial effect mainly embodies:

through the first bearing and the second bearing which are connected in series, the distance from the transmission to the impeller is effectively reduced, the vibration of the impeller is reduced, the stress of the impeller is more reasonable, and the service lives of the water seal and the impeller are prolonged; the first bearing and the second bearing are matched and inserted through the positioning block, the connecting structure is stable and reliable, abrasion is prevented, and the service life of the bearing is prolonged; the first bearing adopts a roller and a first rolling ball structure, is adapted to the front shell structure and has strong bearing capacity; the second bearing adopts a plurality of second spin structures for the axial clearance is little, and the adaptation improves the quality of second bearing in shell structure after in.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a partial sectional view of the present embodiment;

FIG. 3 is a schematic structural view of a first bearing of the present embodiment;

fig. 4 is a sectional view of the first bearing of the present embodiment;

fig. 5 is a sectional view of the second bearing of the present embodiment;

the figures in the drawings represent:

the device comprises a first bearing 1, a front housing 11, a positioning block 12, an arc-shaped surface 13, a roller 14, a first rolling ball 15, a first shaft sleeve 16, a positioning groove 17, a second bearing 2, a rear housing 21, a rear cover 22, a high-pressure liquid passing cavity 23, a liquid inlet 24, a liquid outlet 25, a low-pressure liquid passing area 26, a second rolling ball 27, a second shaft sleeve 28, a belt pulley 3, an impeller 4, a water seal 41, a first bolt 5 and a second bolt 51.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention.

Example (b):

referring to fig. 1 to 5, the present embodiment is a serial connection type water pump bearing connection structure, which includes a first bearing 1 and a second bearing 2 connected to each other in a water pump housing, a pulley 3 disposed at an outer end of the first bearing 1, and an impeller 4 disposed at an outer end of the second bearing 2.

The water pump housing includes a front housing 11 accommodating the first bearing 1, a rear housing 21 accommodating the second bearing 2, and a rear cover 22 coupled to the rear housing 21. The belt pulley 3 is connected with a mandrel of the first bearing 1 in an interference fit manner, positioning blocks 12 are symmetrically arranged on two sides of the mandrel end of the first bearing 1, positioning grooves 17 which are correspondingly matched and spliced with the positioning blocks 12 are arranged on the mandrel end of the second bearing 2, and arc-shaped surfaces 13 are arranged on the surfaces of the positioning blocks 12.

Connect through a plurality of first bolts 5 between procapsid 11 and the back casing 21, impeller 4 is equipped with water seal 41 with the dabber junction of second bearing 2, impeller 4 is connected with the dabber interference fit of second bearing 2, back casing 21 is connected through a plurality of second bolts 51 with back lid 22, the junction of back casing 21 and back lid 22 forms high pressure and crosses sap cavity 23, the external connection of back lid 22 has and crosses the inlet 24 that sap cavity 23 communicates with high pressure, the external connection of back casing 21 has and crosses the liquid outlet 25 that sap cavity 23 communicates with high pressure. The position of the liquid inlet 24 on the rear cover 22 forms a low-pressure liquid passing area 26.

The roller 14 and the first rolling ball 15 are sleeved on the mandrel of the first bearing 1, the first bushing 16 is sleeved outside the roller 14 and the first rolling ball 15, and the first bushing 16 is connected with the front shell 11 in an interference fit mode.

The mandrel of the second bearing 2 is sleeved with a plurality of second rolling balls 27, the outer portions of the second rolling balls 27 are sleeved with a second shaft sleeve 28, and the second shaft sleeve 28 is connected with the rear shell 21 in an interference fit mode.

When using this embodiment, the rotatory dabber that drives first bearing 16 of belt pulley 3 is rotatory, and then drives the dabber rotation of second bearing 28, drives impeller 4 again and rotates for impeller 4 cavity fills the coolant liquid, because impeller 4's central centrifugal force effect, high pressure crosses hydraulic pressure rising in the liquid cavity 23, and the coolant liquid flows out from liquid outlet 25, and impeller 4's central pressure reduces simultaneously, and the coolant liquid constantly flows in from inlet 24, thereby realizes the cooling cycle operation of water pump.

In the embodiment, the first bearing 1 and the second bearing 2 which are connected in series effectively reduce the distance from transmission to the impeller 4 and reduce the vibration of the impeller 4, so that the stress of the impeller 4 is more reasonable, and the service lives of the water seal 41 and the impeller 4 are prolonged; the first bearing 1 and the second bearing 2 are matched and inserted through the positioning block 12, the connecting structure is stable and reliable, abrasion is prevented, and the service life of the bearings is prolonged; the first bearing 1 adopts a roller 14 and first rolling ball 15 structure, is adapted to a front shell structure and has strong bearing capacity; the second bearing 2 adopts a plurality of second rolling balls 27 structure, so that the axial clearance is small, the second bearing is adapted to the rear shell structure, and the quality of the second bearing is improved.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. Series-type water pump bearing connection structure, its characterized in that: including locating the first bearing and the second bearing of interconnect in the water pump shell body, locate the belt pulley of first bearing outer end to and locate the impeller of second bearing outer end, the water pump shell body includes the procapsid of the first bearing of holding, the back casing of holding second bearing and the back lid of connecting the back casing, the mandrel end bilateral symmetry of first bearing is equipped with the locating piece, the mandrel end of second bearing is equipped with the constant head tank of pegging graft with the corresponding matching of locating piece, the surface of locating piece is equipped with the arcwall face, the junction of back casing and back lid forms high pressure and crosses the sap cavity, the external connection of back lid has and passes the inlet of sap cavity intercommunication with high pressure, the external connection of back casing has and passes the liquid outlet of sap cavity intercommunication with high pressure.

2. The tandem type water pump bearing connection structure according to claim 1, wherein: the belt pulley is connected with the mandrel of the first bearing in an interference fit manner.

3. The tandem type water pump bearing connection structure according to claim 1, wherein: the front shell and the rear shell are connected through a plurality of first bolts.

4. The tandem type water pump bearing connection structure according to claim 1, wherein: and a water seal is arranged at the joint of the impeller and the mandrel of the second bearing, and the impeller is connected with the mandrel of the second bearing in an interference fit manner.

5. The tandem type water pump bearing connection structure according to claim 1, wherein: the rear shell is connected with the rear cover through a plurality of second bolts.

6. The tandem type water pump bearing connection structure according to claim 1, wherein: the roller and the first rolling ball are sleeved on the mandrel of the first bearing, a first shaft sleeve is sleeved outside the roller and the first rolling ball, and the first shaft sleeve is connected with the front shell in an interference fit mode.

7. The tandem type water pump bearing connection structure according to claim 1, wherein: the mandrel of the second bearing is sleeved with a plurality of second rolling balls, a second shaft sleeve is sleeved outside the second rolling balls, and the second shaft sleeve is connected with the rear shell in an interference fit mode.