CN213929209U

CN213929209U - Oil pump transmission shaft

Info

Publication number: CN213929209U
Application number: CN202022523249.4U
Authority: CN
Inventors: 李斌
Original assignee: Sichuan Tianao Environmental Protection Science & Technology Co ltd
Current assignee: Sichuan Tianao Environmental Protection Science & Technology Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-08-10
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses an oil pump transmission shaft, including the gear, the gear facial make-up is equipped with the gear shaft, is equipped with the external screw thread on the gear shaft, and the cover is equipped with the lantern ring on the gear shaft, is equipped with the internal thread on the inner wall of the lantern ring, external screw thread and internal thread threaded connection, and the lantern ring cover is established in the transmission shaft, has seted up the cover groove on the transmission shaft, and the lantern ring cover is put at the cover inslot, and the lantern ring facial make-up is equipped with the fixture block, has seted up the draw-in groove in the cover groove, and the fixture block is worn to establish in the draw-in groove. When the gear shaft is connected with the transmission shaft, because the external screw thread on the gear shaft and the internal thread threaded connection in the lantern ring can be with lantern ring and gear shaft fixed connection, again through establishing the lantern ring cover in the cover inslot of transmission shaft, make fixture block and the mutual gomphosis of cover inslot draw-in groove on the lantern ring to can make the transmission shaft that the gear shaft can pass through the better drive of lantern ring ability rotate, can promote the transmission efficiency between gear shaft and the transmission shaft, and the installation is simple, easily assembles.

Description

Oil pump transmission shaft

Technical Field

The utility model belongs to the technical field of the oil pump, concretely relates to oil pump transmission shaft.

Background

The oil pump is a device for raising the pressure of the engine oil and ensuring a certain amount of oil to forcibly supply the oil to each friction surface, and the oil pump is mainly divided into a gear type oil pump and a rotor type oil pump, wherein the gear type oil pump has the advantages of simple structure, convenient processing, reliable work, long service life and high pump oil pressure, and is widely applied.

The existing transmission shaft of the oil pump is used as a component applied to the oil pump, the function of the transmission shaft is to transmit power, the transmitted power comes from a gear, the shaft rotates to drive a rotor and a water pump to rotate, power is provided for lubricating and cooling an engine, a driving gear and the transmission shaft are generally processed into an integrated structure, namely a gear shaft structure, and due to the fact that the diameter of the gear is small, the extending end of the gear shaft is thin, the gear shaft is not convenient to connect with an external transmission component, and assembly difficulty is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil pump transmission shaft to solve the problem of the inconvenient assembly of current oil pump transmission.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an oil pump transmission shaft, includes the gear, the gear facial make-up is equipped with the gear shaft, be equipped with the external screw thread on the gear shaft, the cover is equipped with the lantern ring on the gear shaft, be equipped with the internal thread on the inner wall of lantern ring, external screw thread and internal thread threaded connection, the lantern ring cover is established in the transmission shaft, the cover groove has been seted up on the transmission shaft, and the lantern ring cover is put at the cover inslot, lantern ring facial make-up is equipped with the fixture block, the cover inslot is seted up the draw-in groove, the fixture block is worn to establish in the draw-in groove.

Preferably, the gear shaft is provided with a fixed block, the bottom of the sleeve groove is provided with a fixed groove, and the fixed block is arranged in the fixed groove in a penetrating manner.

Preferably, the transmission shaft is provided with a first fixing hole, the fixing block is provided with a second fixing hole, and fixing pins are inserted into the first fixing hole and the second fixing hole and locked by nuts.

Preferably, the lantern ring is provided with an oil penetration hole, and the oil penetration hole is sleeved with an oil plug.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides an oil pump transmission shaft, compared with the prior art, when the gear shaft is connected with the transmission shaft, because the internal thread threaded connection in external screw thread on the gear shaft and the lantern ring, can be with the lantern ring and gear shaft fixed connection, again through establishing the lantern ring cover at the cover inslot of transmission shaft, make fixture block and the mutual gomphosis of cover inslot draw-in groove on the lantern ring, thereby can make the gear shaft can rotate through the transmission shaft of the better drive of lantern ring ability, can promote the transmission efficiency between gear shaft and the transmission shaft, and the installation is simple, easily assemble.

The utility model provides an oil pump transmission shaft alternates in the fixed slot of cover tank bottom portion through the fixed block under the gear shaft, can be better play the drive action, and the rethread is alternate in the fixed orifices one of transmission shaft and the fixed orifices two of fixed block and is locked with the nut with the fixed pin, can ensure the stability of being connected between gear shaft and transmission shaft.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic view of the structure of the present invention;

FIG. 3 is a schematic top view taken at A-A of FIG. 1;

fig. 4 is an enlarged schematic view of fig. 2 at b.

In the figure: the gear 1, the gear shaft 2, the external screw thread 3, the lantern ring 4, the internal screw thread 5, the

transmission shaft

6, 7 set grooves, 8 fixture blocks, 9 draw-in grooves, 10 fixed blocks, 11 fixed grooves, 12 fixed holes I, 13 fixed holes II, 14 fixed pins, 15 nuts, 16 oil leakage holes and 17 plugs.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, 2, 3 and 4, an oil pump transmission shaft includes a gear 1, a gear shaft 2 welded to a lower end surface of the gear 1 and being a cylindrical shaft, an outer wall of the gear shaft 2 being provided with an external thread 3, the gear shaft 2 being sleeved with a collar 4, the collar 4 being a circular ring structure, an inner thread 5 being provided on an inner wall of the collar 4, the inner thread 5 being in threaded connection with the external thread 3, such that the collar 4 is fixedly connected to the gear shaft 2, the gear shaft 2 being sleeved with a transmission shaft 6 being a cylindrical shaft, an upper end surface of the transmission shaft 6 being provided with a sleeve groove 7, the sleeve groove 7 being a circular groove located at a middle position, the sleeve groove 7 being sleeved with the collar 4, and an inner wall of the sleeve groove 7 being in interference fit with an outer wall of the collar 4, the outer wall of the collar 4 being welded to a clamp block 8 in a ring shape, the clamp block 8 being a rectangular block, the number of 8 being 8, the inner wall of the sleeve groove 7 being uniformly provided with clamp grooves 9, draw-in groove 9 is square groove, quantity is 8, fixture block 8 alternates in draw-in groove 9, fixture block 8 is interference fit with draw-in groove 9, when gear shaft 2 is connected with transmission shaft 6, because 5 threaded connection of internal thread in external screw thread 3 on the gear shaft 1 and the lantern ring 4, can be with

lantern ring

4 and 2 fixed connection of gear shaft, establish in the cover groove 7 of transmission shaft 6 through 4 covers of lantern ring again, make fixture block 8 on the lantern ring 4 and the mutual gomphosis of draw-in groove 9 in the cover groove 7, thereby can make the transmission shaft rotation of the drive that gear shaft 2 can be better through the lantern ring 4, can promote the transmission efficiency between gear shaft 2 and the transmission shaft 6, and the installation is simple, easily assemble.

Referring to fig. 1, 2, 3 and 4, a fixing block 10 is welded at the shaft bottom of the gear shaft 2, and is a square block, and is located at an intermediate position, a fixing groove 11 is formed at the bottom of the sleeve groove 7, the fixing groove 11 is a square groove, and is located at the intermediate position, the fixing block 10 is inserted into the fixing groove 11, fixing holes 12 are symmetrically formed at two sides of the groove wall of the fixing groove 11, and are circular holes, and a fixing hole two 13 is formed in the fixing block 10, and is a circular hole, and is located at the intermediate position, a fixing pin 14 is inserted into the fixing hole one 12 and the fixing hole two 13 and is locked by a nut 15, the fixing block 10 below the gear shaft 2 is inserted into the fixing groove 11 at the bottom of the sleeve groove 7, the fixing block 10 and the fixing groove 11 are mutually embedded during rotation, so as to better play a transmission role, and the fixing pin 14 is inserted into the fixing hole one 12 of the transmission shaft 6 and the fixing hole two 13 of the fixing block 10 and is locked by the nut 14, can ensure the stability of being connected between gear shaft 2 and transmission shaft 6, the port of oil permeability hole 16 is seted up to the up end of lantern ring 4, evenly set up the export of oil permeability hole 16 on the inner wall of lantern ring 4, the port department cover of oil permeability hole 16 is equipped with embolism 17, embolism 17 is the rubber buffer, when the screw thread corrosion between lantern ring 4 and gear shaft 2, through taking off embolism 17, to adding lubricating oil in the oil permeability hole 16, can make lubricating oil enter into between lantern ring 4 and the gear shaft 2, be convenient for dismantle.

When the transmission device is used, when the gear shaft 2 is connected with the transmission shaft 6, the external thread 3 on the gear shaft 1 is in threaded connection with the internal thread 5 in the lantern ring 4, the lantern ring 4 can be fixedly connected with the gear shaft 2, the lantern ring 4 is sleeved in the lantern groove 7 of the transmission shaft 6, the clamping block 8 on the lantern ring 4 is mutually embedded with the clamping groove 9 in the lantern groove 7, so that the gear shaft 2 can be driven by the lantern ring 4 to rotate, the transmission efficiency between the gear shaft 2 and the transmission shaft 6 can be improved, the fixing block 10 under the gear shaft 2 is inserted in the fixing groove 11 at the bottom of the lantern groove 7, the fixing block 10 and the fixing groove 11 are mutually embedded during rotation, the transmission effect can be better achieved, the fixing pin 14 is inserted in the first fixing hole 12 of the transmission shaft 6 and the second fixing hole 13 of the fixing block 10 and is locked by the nut 14, and the connection stability between the gear shaft 2 and the transmission shaft 6 can be guaranteed, therefore, the problem that the transmission of the existing oil pump is inconvenient to assemble is solved.

Claims

1. An oil pump transmission shaft, includes gear (1), its characterized in that: gear (1) facial make-up is equipped with gear shaft (2), be equipped with external screw thread (3) on gear shaft (2), the cover is equipped with lantern ring (4) on gear shaft (2), be equipped with internal thread (5) on the inner wall of lantern ring (4), external screw thread (3) and internal thread (5) threaded connection, the cover is established in transmission shaft (6) in lantern ring (4), set groove (7) have been seted up on transmission shaft (6), and lantern ring (4) cover is put in set groove (7), lantern ring (4) facial make-up is equipped with fixture block (8), draw-in groove (9) have been seted up in set groove (7), fixture block (8) are worn to establish in draw-in groove (9).

2. The oil pump drive shaft according to claim 1, wherein: the gear shaft (2) is provided with a fixed block (10), the bottom of the sleeve groove (7) is provided with a fixed groove (11), and the fixed block (10) is arranged in the fixed groove (11) in a penetrating mode.

3. An oil pump drive shaft according to claim 2, characterized in that: the transmission shaft (6) is provided with a first fixing hole (12), the fixing block (10) is provided with a second fixing hole (13), and a fixing pin (14) penetrates through the first fixing hole (12) and the second fixing hole (13) and is locked by a nut (15).

4. The oil pump drive shaft according to claim 1, wherein: an oil penetration hole (16) is formed in the lantern ring (4), and an oil plug (17) is sleeved on the oil penetration hole (16).