CN212717032U - Hydraulic pump driving structure and engine - Google Patents
Hydraulic pump driving structure and engine Download PDFInfo
- Publication number
- CN212717032U CN212717032U CN202021307857.5U CN202021307857U CN212717032U CN 212717032 U CN212717032 U CN 212717032U CN 202021307857 U CN202021307857 U CN 202021307857U CN 212717032 U CN212717032 U CN 212717032U
- Authority
- CN
- China
- Prior art keywords
- hydraulic pump
- injection pump
- gear
- driving structure
- pump
- 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.)
- Active
Links
Images
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model discloses a hydraulic pump drive structure, hydraulic pump are by injection pump gear drive, the injection pump gear still is used for driving the injection pump, the hydraulic pump with the injection pump is established respectively the both sides of injection pump gear. The utility model provides an among the hydraulic pump drive structure, injection pump gear is used for direct drive hydraulic pump and injection pump, and hydraulic pump and injection pump divide the both sides of establishing at the injection pump gear. The utility model provides a hydraulic pump drive structure has avoidd the mode that adopts the air compressor machine drive shaft to drive the hydraulic pump to the steady operation of air compressor machine has been ensured. Additionally, the utility model provides a compact structure of hydraulic pump drive structure, transmission efficiency is high, and is with low costs.
Description
Technical Field
The utility model relates to a drive field of hydraulic pump in the engine, more specifically say, relate to a hydraulic pump drive structure and an engine.
Background
In the prior art, the hydraulic pump is driven by the drive shaft of the air compressor. The rear end of the air compressor driving shaft is provided with a spline, and the hydraulic pump is connected with the air compressor driving shaft through the spline. However, since the power take-off port is added to the rear end of the air compressor drive shaft, the rear end of the air compressor drive shaft becomes long, which results in an overall structure that is not compact. In addition, because the rear end of the air compressor driving shaft is additionally provided with the power take-off port, the air compressor driving shaft needs to bear larger external force, and then the air compressor is easy to break down.
Therefore, how to avoid the air compressor drive shaft to drive the hydraulic pump to ensure the steady operation of air compressor, avoid increasing overall structure size simultaneously, the key problem that the skilled person in the art needs a lot of solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydraulic pump drive structure can avoid the air compressor machine drive shaft to drive the hydraulic pump to ensure the steady operation of air compressor machine, avoid increasing overall structure size simultaneously. In order to realize the purpose, the following technical scheme is provided:
the hydraulic pump is driven by an oil injection pump gear, the oil injection pump gear is also used for driving an oil injection pump, and the hydraulic pump and the oil injection pump are respectively arranged on two sides of the oil injection pump gear.
Preferably, a connecting sleeve is arranged between the oil injection pump gear and the hydraulic pump, the connecting sleeve is connected with the oil injection pump gear through a bolt, and the connecting sleeve is circumferentially fixed with a transmission shaft of the hydraulic pump.
Preferably, the connecting sleeve has a convex portion protruding in a direction away from the fuel injection pump gear, a clamping groove is formed in an end face of the convex portion, and a latch is arranged on an end face of a transmission shaft of the hydraulic pump and adapted to the clamping groove.
Preferably, the latch is a plurality of latches arranged around an axis of a drive shaft of the hydraulic pump.
Preferably, a light blocking sheet is arranged on the end face of the connecting sleeve, which faces away from the fuel injection pump gear, and a sensor is arranged at the lower part of the connecting sleeve.
Preferably, one of the connecting sleeve and the oil injection pump gear is provided with a male spigot, and the other is provided with a female spigot matched with the male spigot.
Preferably, a transmission shaft of the injection pump is connected with the injection pump gear through a connecting disc.
Preferably, the connecting disc has a tapered hole, and the inner diameter of the tapered hole gradually decreases in the direction from the injection pump to the hydraulic pump, the transmission shaft of the injection pump has a tapered portion adapted to the tapered hole, and a lock nut is screwed onto an end surface of a small head of the tapered portion and is pressed against a small-diameter end surface of the tapered hole.
Preferably, the connecting disc is further provided with a positioning ring, a central hole of the oil injection pump gear is matched with the positioning ring, the connecting disc is connected with the oil injection pump gear through a bolt, and the locking nut is hidden in the positioning ring.
The utility model also discloses an engine, including the hydraulic pump, the hydraulic pump is driven by above-mentioned arbitrary hydraulic pump drive structure.
According to the above technical scheme, the utility model provides an among the hydraulic pump drive structure, the injection pump gear is used for direct drive hydraulic pump and injection pump, and hydraulic pump and injection pump divide the both sides of establishing at the injection pump gear. The utility model provides a hydraulic pump drive structure has avoidd the mode that adopts the air compressor machine drive shaft to drive the hydraulic pump to the steady operation of air compressor machine has been ensured. Additionally, the utility model provides a compact structure of hydraulic pump drive structure, transmission efficiency is high, and is with low costs.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive efforts.
Fig. 1 is a schematic view of a hydraulic pump driving structure according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a connecting sleeve according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a hydraulic pump according to an embodiment of the present invention.
The fuel injection pump comprises a fuel injection pump gear 1, a connecting sleeve 2, a convex part 3, a bolt 4, a connecting disc 5, a positioning ring 6, a locking disc 7, a hydraulic pump 8, a light blocking sheet 9, a clamping groove 10 and a clamping tooth 11.
Detailed Description
The utility model discloses a hydraulic pump drive structure can avoid the air compressor machine drive shaft to drive the hydraulic pump to ensure the steady operation of air compressor machine, avoid increasing overall structure size simultaneously.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The utility model discloses a hydraulic pump drive structure the utility model provides an in the hydraulic pump drive structure, utilize injection pump gear 1 to come direct drive injection pump and hydraulic pump 8 creatively. And, the hydraulic pump 8 and the injection pump are separately provided on both sides of the injection pump gear 1. Because injection pump gear 1 direct drive hydraulic pump 8, not only transmission simple structure so can improve driven efficiency moreover. Since the injection pump and the hydraulic pump 8 are arranged on both sides of the injection pump gear 1, the structural compactness is also ensured. Next, the hydraulic pump driving structure will be explained in detail.
Please refer to fig. 1. A connecting sleeve 2 is arranged between the fuel injection pump gear 1 and the hydraulic pump 8. The connecting sleeve 2 is bolted to the injection pump gear 1, and this bolting solution will be explained in further detail below and will not be described in detail here. On the other hand, the connecting sleeve 2 is circumferentially fixed with a transmission shaft of the hydraulic pump 8. So, when injection pump gear 1 rotated, injection pump gear 1 can drive adapter sleeve 2 and rotate, and adapter sleeve 2 will drive the transmission shaft rotation of hydraulic pump 8 again. In this way, the injection pump gear 1 drives the hydraulic pump 8.
The circumferential fixation of the connecting sleeve 2 and the transmission shaft of the hydraulic pump 8 is realized by the following scheme: the connecting sleeve 2 is located between the injection pump gear 1 and the hydraulic pump 8. The connecting sleeve 2 has a convex portion 3, and the convex portion 3 protrudes in the axial direction of the connecting sleeve 2 in a direction away from the fuel injection pump gear 1. On the end surface of the convex portion 3, a catching groove 10 is provided which opens toward the hydraulic pump 8. A latch 11 facing the injection pump gear 1 is provided on the end face of the drive shaft of the hydraulic pump 8. The latch 11 can be latched in the latch slot 10, so that circumferential fixation of the transmission shaft of the hydraulic pump 8 and the connecting sleeve 2 is realized. The skilled person in the art can understand that circumferential fixation can also be achieved through other manners such as key connection, and the implementation manner of circumferential fixation is not specifically limited herein, and as long as circumferential fixation of the transmission shaft of the hydraulic pump 8 and the injection pump gear 1 can be achieved, the circumferential fixation falls within the protection scope herein.
Further, a plurality of latches 11 may be provided on an end surface of the drive shaft of the hydraulic pump 8, the plurality of latches 11 being arranged around the axis of the drive shaft of the hydraulic pump 8. Correspondingly, the convex part 3 of the connecting sleeve 2 is provided with a plurality of clamping grooves 10. Each latch 11 is inserted into a corresponding latch slot 10, so that stability of the injection pump gear 1 driving the hydraulic pump 8 can be ensured. Due to the matching of the plurality of clamping grooves 10 and the plurality of clamping teeth 11, the machining precision requirement on the connecting sleeve 2 is high, and the connecting sleeve 2 can be machined by adopting a linear cutting or machining center.
Further, the connecting sleeve 2 is positioned on the fuel injection pump gear 1 through the spigot, so that the mounting accuracy is improved. In particular, a male spigot, or male end face, is provided on the connection sleeve 2. A female spigot, or a female end face, is provided on the injection pump gear 1. The convex spigot is matched with the concave spigot. Or, a concave spigot is arranged on the connecting sleeve 2, and a convex spigot is arranged on the fuel injection pump gear 1.
The connecting sleeve 2 is used for realizing circumferential fixation of a transmission shaft of the hydraulic pump 8 and the oil injection pump gear 1, and the connecting sleeve 2 is also used for installing a light barrier 9. The sensor is arranged at the lower part of the connecting sleeve 2, and the light blocking sheet 9 matched with the sensor is fixedly arranged at the edge part of the connecting sleeve 2. In this way, the sensor can transmit the rotational speed signal of the injection pump gear 1 to the control unit.
The connection of the injection pump gear 1 to the drive shaft of the injection pump is described below: the transmission shaft of the injection pump is connected with the injection pump gear 1 through a connecting disc 5. The connection disc 5 has a tapered hole (not shown) whose inner diameter is gradually reduced in a direction from the injection pump to the hydraulic pump 8. The drive shaft of the injection pump has a cone portion (not shown) which fits into the conical bore, the cone portion being able to fit tightly into the conical bore. Since the inner diameter of the conical bore decreases, the drive shaft of the injection pump is restricted from moving in the direction of the hydraulic pump 8. In addition, a locking nut is screwed on the end face of the small end of the cone part and is pressed on the end face of the small diameter of the cone hole, so that the transmission shaft of the fuel injection pump is fixed with the connecting disc 5.
Further, the connecting disc 5 also has a positioning ring 6. The central hole of the injection pump gear 1 is adapted to the positioning ring 6, so that the assembly accuracy is improved. In addition, the locking nut is hidden in the positioning ring 6. In addition, the connecting plate 5 has an annular locking disk 7. The end face of the oil injection pump gear 1, which is back to the hydraulic pump 8, is attached to the disc surface of the locking disc 7. The end face of the connecting sleeve 2, which is back to the hydraulic pump 8, is attached to the oil injection pump gear 1. And (3) screwing a bolt 4 from the connecting sleeve 2, wherein the bolt 4 penetrates through the connecting sleeve 2 and the oil injection pump gear 1 and is finally screwed into the locking disc 7. Therefore, the connecting sleeve 2, the fuel injection pump gear 1 and the connecting disc 5 are fixed. And the connecting sleeve 2 is fixed with the transmission shaft of the hydraulic pump 8 in the circumferential direction, and the connecting disc 5 is fixed with the transmission shaft of the oil injection pump, so that the oil injection pump gear 1 drives the hydraulic pump 8 and the oil injection pump.
The utility model also discloses an engine, including hydraulic pump 8, especially, this hydraulic pump 8 is driven by above-mentioned arbitrary hydraulic pump drive structure. The hydraulic pump driving structure has the advantages, and the engine with the hydraulic pump driving structure also has the advantages, so the description is omitted.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The hydraulic pump driving structure is characterized in that a hydraulic pump is driven by an oil injection pump gear, the oil injection pump gear is further used for driving an oil injection pump, and the hydraulic pump and the oil injection pump are respectively arranged on two sides of the oil injection pump gear.
2. The hydraulic pump driving structure according to claim 1, wherein a connection sleeve is provided between the injection pump gear and the hydraulic pump, the connection sleeve is connected to the injection pump gear by a bolt, and the connection sleeve is circumferentially fixed to a transmission shaft of the hydraulic pump.
3. The hydraulic pump driving structure according to claim 2, wherein the coupling sleeve has a convex portion that protrudes in a direction away from the injection pump gear, a locking groove is provided on an end surface of the convex portion, and a latch is provided on an end surface of a transmission shaft of the hydraulic pump, the latch being adapted to the locking groove.
4. The hydraulic pump driving structure according to claim 3, wherein the latch is plural in number, and the plural latches are arranged around an axis of a drive shaft of the hydraulic pump.
5. The hydraulic pump driving structure according to claim 2, wherein a light blocking plate is provided on an end surface of the connection sleeve facing away from the injection pump gear, and a sensor is provided on a lower portion of the connection sleeve.
6. The hydraulic pump driving structure according to claim 2, wherein a male spigot is provided on one of the connecting sleeve and the injection pump gear, and a female spigot to which the male spigot is fitted is provided on the other.
7. The hydraulic pump driving structure according to claim 1, wherein the transmission shaft of the injection pump is connected to the injection pump gear through a connection plate.
8. The hydraulic pump driving structure according to claim 7, wherein the connection plate has a tapered hole, and an inner diameter of the tapered hole is gradually reduced in a direction from the injection pump to the hydraulic pump, and the transmission shaft of the injection pump has a tapered portion fitted to the tapered hole, and a lock nut is screwed on an end surface of a small head of the tapered portion, and the lock nut is pressed against an end surface of a small diameter of the tapered hole.
9. The hydraulic pump driving structure as claimed in claim 8, wherein the connecting plate further has a positioning ring, the central hole of the injection pump gear is fitted with the positioning ring, and the connecting plate is connected with the injection pump gear by a bolt.
10. An engine comprising a hydraulic pump, characterized in that the hydraulic pump is driven by a hydraulic pump driving structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021307857.5U CN212717032U (en) | 2020-07-06 | 2020-07-06 | Hydraulic pump driving structure and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021307857.5U CN212717032U (en) | 2020-07-06 | 2020-07-06 | Hydraulic pump driving structure and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212717032U true CN212717032U (en) | 2021-03-16 |
Family
ID=74965077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021307857.5U Active CN212717032U (en) | 2020-07-06 | 2020-07-06 | Hydraulic pump driving structure and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212717032U (en) |
-
2020
- 2020-07-06 CN CN202021307857.5U patent/CN212717032U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6752560B2 (en) | Removable splined shaft end for submersible pumps | |
| US8425189B2 (en) | Rotor mounting | |
| CN212717032U (en) | Hydraulic pump driving structure and engine | |
| US20030056625A1 (en) | Output shaft and concentrically mounted attachments therefor | |
| CN214162631U (en) | Motor assembly | |
| CN114687861B (en) | Locking connection device of gas turbine low-pressure rotor | |
| CN212445068U (en) | Gapless main shaft locking device with improved structure | |
| EP1015309B1 (en) | A marine propeller, propeller system and components belonging thereto, and a method of connecting a propeller | |
| CN214465515U (en) | Low-pressure turbine shaft and aircraft engine comprising same | |
| US20190346021A1 (en) | Speed reducer | |
| CN216715023U (en) | Coupling and transmission | |
| CN219623098U (en) | Hollow shaft flat key connection structure and gear box assembly | |
| CN219588048U (en) | Blank cap welding type input guide seat of hydraulic torque converter | |
| CN212106674U (en) | Novel flat seaming motor shaft three-jaw connecting piece | |
| CN219176909U (en) | Gear box assembly and electric tool | |
| CN221144976U (en) | Jackscrew cooperation structure, drive arrangement and meal machine | |
| CN218467905U (en) | Rotor structure with counterweight module | |
| WO2023029368A1 (en) | Power take-off transmission device and crane | |
| CN212055567U (en) | Clutch ball tooth coupling | |
| CN217912878U (en) | Single-drive machine tool tailstock mechanism for gas turbine blade | |
| CN218670547U (en) | Bearing locking structure and speed reducer with same | |
| CN212250816U (en) | High-speed rotor connection structure | |
| CN218177895U (en) | Integral planet carrier | |
| CN219190077U (en) | Frock subassembly convenient to power assembly | |
| CN217152401U (en) | Connecting structure of centrifugal impeller and main shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |