CN205937723U

CN205937723U - Injection pump timing gear of integral type

Info

Publication number: CN205937723U
Application number: CN201620926412.2U
Authority: CN
Inventors: 梁亮; 张益锋
Original assignee: ZHEJIANG XINCHAI CO Ltd
Current assignee: ZHEJIANG XINCHAI CO Ltd
Priority date: 2016-08-22
Filing date: 2016-08-22
Publication date: 2017-02-08
Anticipated expiration: 2026-08-22

Abstract

Injection pump timing gear of integral type, body including the timing gear, the central shaping of a body side end face has the axle sleeve, the shaping has the shaft hole of running through body opposite side terminal surface on the side end face of axle sleeve, the shaping has the keyway on the inner wall in shaft hole, the opposite side terminal surface shaping of body has a plurality of bottom screw hole, the bottom screw hole distributes around the shaft hole, supporting by there being the holding ring of the opposite side terminal surface of body, the holding ring comprises two semicircle rings, the bolt passes semicircle ring spiro union at the bottom of body threaded hole. It designs into integrated into one piece with timing gear and gear bush, then saves the assembling process between timing gear and the gear bush, saves manufacturing cost, sets up the structure with axle matched with simultaneously on the timing gear, makes things convenient for the installation of timing gear and axle.

Description

The injection pump timing gears of integral type

Technical field：

This utility model is related to the technical field of fuel injection pump gear, more specifically to the injection pump timing gear of integral type Wheel.

Background technology：

At present, China is small engineering machinery and agricultural machinery provides the manufacturer of supporting power a lot of, the market competition Also abnormal fierce, thus considering how that reducing production cost and strengthening product reliability is the key point possessing the market competitiveness. As the timing gears of injection pump on existing small farm diesel engine, timing gears have also mixed a gear bush, existing Timing gears and gear bush are detached, and bolt carries out assembly connection simultaneously.Whether that can be by timing gears and gear shaft Set is integrally formed, then can save the assembling process between timing gears and gear bush, saves production cost.

Utility model content：

The purpose of this utility model is aiming at the deficiency of prior art, and provides the injection pump timing gear of integral type Wheel, it realizes timing gears and gear bush is integrally formed, and saves production cost, opens up the connection knot of timing gears and axle simultaneously Structure, facilitates the installation of timing gears and axle.Technology solution of the present utility model is as follows：

The injection pump timing gears of integral type, including the body of timing gears, the center of body one side end face forms axle Set, the side end face of axle sleeve forms the axis hole running through another side end face of body, the inwall of axis hole forms keyway, body Another side end face forms several bottom thread holes, and bottom thread pore size distribution is in the surrounding of axis hole, another side end face of body Against there being locating ring, locating ring is made up of two semicircular ring, and bolt is screwed onto the bottom thread in the hole of body through semicircular ring.

The diameter of described semicircular ring inner ring is less than the diameter of body upper shaft hole.

At least provided with four, bottom thread hole is ringwise uniformly divided around the central axis of body in described bottom thread hole Cloth.

The both sides end face of described body all forms concave station, and axle sleeve is molded over the bottom surface of body side concave station, and semicircular ring is supported Lean against on the bottom surface of axle sleeve opposite side concave station, the circle of semicircular ring and the central axis of body coincide, thickness of semicircular ring etc. Depth in body concave station.

The beneficial effects of the utility model are：

Timing gears and gear bush are designed to be integrally formed by it, then save the dress between timing gears and gear bush Join process, save production cost, the structure being matched with axle is opened up on timing gears simultaneously, facilitates the peace of timing gears and axle Dress.

Brief description：

Fig. 1 is the structural representation of this utility model backsight；

The structural representation that Fig. 2 partly cuts open for this utility model.

In figure：1st, body；11st, axle sleeve；12nd, axis hole；13rd, keyway；14th, bottom thread hole；2nd, semicircular ring；3rd, bolt.

Specific embodiment：

Embodiment：As shown in Fig. 1,2, the injection pump timing gears of integral type, including the body 1 of timing gears, body 1 one The center of side end face forms axle sleeve 11, and the side end face of axle sleeve 11 forms the axis hole 12 running through another side end face of body 1, axle Keyway 13 is formed on the inwall in hole 12, another side end face of body 1 forms several bottom thread holes 14, bottom thread hole 14 surroundings being distributed in axis hole 12, another side end face of body 1 against there being locating ring, locating ring is made up of two semicircular ring 2, Bolt 3 is screwed onto in the bottom thread hole 14 of body 1 through semicircular ring 2.

The diameter of described semicircular ring 2 inner ring is less than the diameter of body 1 upper shaft hole 12.

At least provided with four, bottom thread hole 14 is ringwise equal around the central axis of body 1 in described bottom thread hole 14 Even distribution.

The both sides end face of described body 1 all forms concave station, and axle sleeve 11 is molded over the bottom surface of body 1 side concave station, semicircle Ring 2 is resisted against on the bottom surface of axle sleeve 11 opposite side concave station, and the central axis of the circle of semicircular ring 2 and body 1 coincides, semicircular ring 2 thickness is equal to the depth of body 1 concave station.

Operation principle：This utility model be diesel injection pump timing gears, its will originally detached timing gears and A part for gear and axle sleeve one rectified and improved by two parts of gear bush, then may dispense with timing gears and gear bush Between assembling process, and be easy to timing gears and be installed on the axle of injection pump, install on timing gears simultaneously locating ring and Keyway 13, locating ring can limit the axial movement that timing gears are relative to oil spout pump shaft, and keyway 13 limits timing gears and relatively sprays The radial rotating of oil pump shaft.

Claims

1. the injection pump timing gears of integral type, the body (1) including timing gears it is characterised in that：Body (1) one side end face Center form axle sleeve (11), the side end face of axle sleeve (11) forms the axis hole (12) running through another side end face of body (1), Keyway (13) is formed on the inwall of axis hole (12), another side end face of body (1) forms several bottom thread holes (14), Bottom thread hole (14) is distributed in the surrounding of axis hole (12), another side end face of body (1) against there being locating ring, locating ring by Two semicircular ring (2) compositions, bolt (3) is screwed onto in the bottom thread hole (14) of body (1) through semicircular ring (2).

2. integral type according to claim 1 injection pump timing gears it is characterised in that：Described semicircular ring (2) inner ring Diameter be less than body (1) upper shaft hole (12) diameter.

3. integral type according to claim 1 injection pump timing gears it is characterised in that：Described bottom thread hole (14) at least provided with four, bottom thread hole (14) are ringwise uniformly distributed around the central axis of body (1).

4. integral type according to claim 1 injection pump timing gears it is characterised in that：The both sides of described body (1) End face all forms concave station, and axle sleeve (11) is molded over the bottom surface of body (1) side concave station, and semicircular ring (2) is resisted against axle sleeve (11) On the bottom surface of opposite side concave station, the central axis of the circle of semicircular ring (2) and body (1) coincides, thickness of semicircular ring (2) etc. Depth in body (1) concave station.