CN214743175U - Oil pump gear shaft assembly - Google Patents

Abstract

The utility model discloses an oil pump gear shaft subassembly belongs to gear shaft technical field. The check blocks are arranged in the clamp keys, the elastic support mechanisms are arranged in the clamp keys, so that a supporting effect is achieved, when the first gear and the third gear collide with the check blocks, a spring in the elastic support mechanisms relieves vibration force caused by collision, parts are prevented from being rigidly contacted, the parts are prevented from being damaged, the service life of the parts is prolonged, and meanwhile, lubricating oil can be dripped into the oil pot in the check blocks due to the extrusion effect, so that the gear is lubricated, and the service life of the gear is prolonged; the gear train sets up to promoting grouping formula, when needs are connected to different gear trains, promotes first gear and third gear through the push rod, extension gear train working stroke for the practicality strengthens greatly, and gear train externally mounted tooth cover simultaneously through the tooth cover friction, protects inside gear train external tooth, plays extension gear train life's effect.

Description

Oil pump gear shaft assembly

Technical Field

The utility model belongs to the technical field of the gear shaft, especially, oil pump gear shaft subassembly.

Background

Gear shaft refers to a mechanical part that supports and rotates with a rotating part to transmit motion, torque, or bending moment. Typically in the form of a metal rod, each section may have a different diameter. The parts of the machine that rotate are mounted on the shaft.

In the gear shaft of daily use, the gear that sets up on the transmission shaft is fixed connection, and when the transmission shaft stroke changed, the gear position could not change, and unable in time co-rotation influenced the normal transmission efficiency of gear shaft.

Disclosure of Invention

Utility model purpose: the utility model provides an oil pump gear shaft subassembly to solve the above-mentioned problem that prior art exists.

The technical scheme is as follows: an oil pump gear shaft assembly comprises a transmission shaft, a gear set arranged on the transmission shaft, a clamping key connected with the gear set, and a stop block arranged at the end part of the clamping key;

the gear set comprises a second gear arranged in the middle of the transmission shaft, a first gear arranged on the side surface of the second gear, and a third gear arranged on the side surface of the first gear;

the check block is of an elastic structure, and an elastic supporting mechanism is arranged inside the check block.

In a further embodiment, a gap between the first gear and the second gear is provided with a gasket, a gap between the second gear and the first gear is provided with a gasket, and the size of the gasket is larger than that of the transmission shaft; reduce the friction between the gear, prevent long-time gear inner wall friction, lead to the whole tolerance of gear to receive the influence.

In a further embodiment, a shaft sleeve is arranged outside the transmission shaft, and the shaft sleeve is in interference fit with the inner diameter of the gear set; make the gear train installation more firm, prevent to appear droing at the during operation.

In a further embodiment, the first gear, the second gear, and the third gear are provided in 4-6 gear teeth count; in order to facilitate high-speed rotation of the gear shaft, the gears are provided with a small number of teeth.

In a further embodiment, the elastic supporting mechanism comprises a second baffle plate attached to the inner wall of the stop block, a spring arranged on the side surface of the second baffle plate, and a first baffle plate arranged on the side surface of the spring; when the third gear and the first gear move towards the stop block side, the springs absorb shock, and damage caused by collision between parts is prevented.

In a further embodiment, an oil pot is arranged in the middle of the elastic mechanism, and the oil pot is arranged to be of a pressable structure; after the stop block is impacted, lubricating oil in the oil can flows out to lubricate the gear set, and the service life of the gear set is prolonged.

In a further embodiment, the gear set is designed from 45 steel, and a gear sleeve is arranged outside the gear set; because the gear shaft needs high-speed operation, uses hard material, improves gear shaft life, and the gear train passes through the tooth cover protection simultaneously and reduces wearing and tearing.

In a further embodiment, the gear set is connected with the clamping key in a sliding manner, a telescopic rod is arranged around the second gear, and the end part of the telescopic rod is attached to the third gear and the inner wall of the first gear; the gear set is pushed by the telescopic rod to prolong the motion stroke of the gear set.

Has the advantages that: a gear shaft assembly of an oil pump is characterized in that a stop block is arranged inside a clamping key, and an elastic supporting mechanism is arranged inside the clamping key and plays a supporting role; the gear train sets up to promoting grouping formula, when needs are connected to different gear trains, promotes first gear and third gear through the push rod, extension gear train working stroke for the practicality strengthens greatly, and gear train externally mounted tooth cover simultaneously through the tooth cover friction, protects inside gear train external tooth, plays extension gear train life's effect.

Drawings

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

Fig. 2 is a schematic structural view of a gear set and a snap-key connection.

Fig. 3 is a schematic structural view of the elastic support mechanism.

Fig. 4 is a schematic structural view of the gear train.

The reference signs are: the gear set comprises a first gear 1, a second gear 2, a third gear 3, a shaft sleeve 4, a clamping key 5, a transmission shaft 6, a gasket 7, a stop block 8, an expansion link 9, a second stop plate 10, a spring 11, a first stop plate 12, an oil can 13, a gear set 14 and a gear sleeve 15.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

As shown in fig. 1 to 4, an oil pump gear shaft assembly is composed of a first gear 1, a second gear 2, a third gear 3, a shaft sleeve 4, a clamping key 5, a transmission shaft 6, a gasket 7, a stop block 8, an expansion link 9, a second baffle plate 10, a spring 11, a first baffle plate 12, an oil can 13, a gear set 14 and a gear sleeve 15.

As shown in fig. 1 to 4, the transmission shaft 6 is placed at a designated position, a shaft sleeve 4 is disposed on an outer surface of the transmission shaft 6, the first gear 1 is connected with the shaft sleeve 4, the second gear 2 is connected with the shaft sleeve 4, the third gear 3 is connected with the shaft sleeve 4, the first gear 1, the second gear 2 and the third gear 3 are connected together through a snap key 5, the first gear 1, the second gear 2 and the third gear 3 form a gear set 14, a gasket 7 is disposed between the first gear 1 and the second gear 2, a gasket 7 is disposed between the second gear 2 and the third gear 3, an expansion link 9 is disposed on an inner wall of the second gear 2, a stopper 8 is disposed inside the snap key 5, an elastic support mechanism is disposed inside the stopper 8, the elastic support mechanism includes a first baffle 12 disposed inside the stopper 8, the first baffle plate 12 and the second baffle plate 10 are connected together through a spring 11, an oil can 13 is arranged below the spring 11, the oil can 13 is of a compressible structure, and a shaft sleeve 4 is arranged outside the gear set 14.

As is well known, a gear shaft used in daily life is arranged in a fixed mode and cannot move, so that the gear shaft is designed into a split type structure; the first gear 1, the second gear 2 and the third gear 3 are connected together through a clamping key 5, the first gear 1, the second gear 2 and the third gear 3 form a gear set 14, and an expansion rod 9 is arranged on the inner wall of the second gear 2; the gear train 14 sets up to promoting grouping formula, when needs are connected to different gear trains 14, promotes first gear 1 and third gear 3 through the push rod, extension gear train 14 working stroke for the practicality strengthens greatly, and 14 externally mounted tooth covers 15 of gear train simultaneously through tooth cover 15 friction, protect 14 external teeth of gear train inside, play extension gear train 14 life's effect.

In contrast, when the split gear shaft moves on the clamp key 5, the gear shaft is not limited, and the gear shaft rotates, so that the problems of offset and the like during processing are caused because the gear is not limited, and the stop block 8 is additionally arranged; a stop block 8 is arranged in the clamp key 5, an elastic supporting mechanism is arranged in the stop block 8, the elastic supporting mechanism comprises a first baffle 12 arranged in the stop block 8, the first baffle 12 and the second baffle 10 are connected together through a spring 11, an oil can 13 is arranged below the spring 11, and the oil can 13 is of an extrudable structure; at the inside dog 8 that is provided with of card key 5, through elastic dog 8, internally mounted's elastic support mechanism, not only play the supporting role, simultaneously after first gear 1 and third gear 3 collide with dog 8, the vibrations power that the inside spring 11 of elastic support mechanism slowed down the collision and brought, prevent rigid contact between the part, lead to the part damage, reach extension part life's effect, simultaneously at the inside oilcan 13 of dog 8, because of the squeezing action, can drip lubricating oil, lubricated gear, reach extension gear life's effect.

The utility model has the following working principle:

the gear shaft design is split type structure, can improve gear shaft working stroke, compensaties the gear shaft and can not too long defect, after the gear components of a whole that can function independently, carries on spacingly through dog 8, and the spring 11 of dog 8 inside simultaneously can reduce the impact that the gear received, carries out the shock attenuation, and oilcan 13 below spring 11 is through the suppression, and the drippage lubricating oil carries out the gear lubrication, extension gear life.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.

Claims (8)

1. The oil pump gear shaft assembly is characterized by comprising a transmission shaft, a gear set arranged on the transmission shaft, a clamping key connected with the gear set, and a stop block arranged at the end part of the clamping key;

the gear set comprises a second gear arranged in the middle of the transmission shaft, a first gear arranged on the side surface of the second gear, and a third gear arranged on the side surface of the first gear;

the check block is of an elastic structure, and an elastic supporting mechanism is arranged inside the check block.

2. The oil pump gear shaft assembly of claim 1, wherein a gap between the first gear and the second gear is provided with a gasket, and a gap between the second gear and the first gear is provided with a gasket, wherein the gasket is larger than the transmission shaft.

3. The oil pump gear shaft assembly of claim 1, wherein the transmission shaft is externally provided with a bushing, and the bushing is in interference fit with the inner diameter of the gear set.

4. An oil pump gear shaft assembly as set forth in claim 1, wherein said first gear, said second gear and said third gear are provided in a number of teeth of 4-6.

5. The oil pump gear shaft assembly according to claim 1, wherein the elastic support mechanism comprises a second baffle plate attached to the inner wall of the stopper, a spring disposed at a side of the second baffle plate, and a first baffle plate disposed at a side of the spring.

6. The engine oil pump gear shaft assembly according to claim 5, wherein an oil pot is arranged in the middle of the elastic supporting mechanism, and the oil pot is arranged in a pressing structure.

7. The oil pump gear shaft assembly of claim 1, wherein the gear set is made of 45-gauge steel, and a gear sleeve is arranged outside the gear set.

8. The engine oil pump gear shaft assembly of claim 1, wherein the gear set is slidably connected with the snap key, a telescopic rod is circumferentially arranged on the second gear, and the end of the telescopic rod is attached to the third gear and the inner wall of the first gear.

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