CN209012050U - A kind of multi-joint hydraulic gear pump of direct-drive type transmission - Google Patents

Abstract

The utility model discloses a kind of direct-drive types to be driven multi-joint hydraulic gear pump, segmented threaded portion is corresponding with circle internal screw thread and axle hole screw thread, driving gear is tightened in master gear shaft by screw thread, driving gear two sides normal plane is respectively mounted axis hole connector, axis hole connector equally passes through gear and is tightened in master gear shaft, and design has salient point on driving gear end face, and design has shrinkage pool on ring normal plane, it is mutually chimeric with shrinkage pool by salient point, so that connecting end surface better tightness；Segmented sets equidistant intervals on threaded portion, and in threaded portion, selectively installation driving gear, the utility model are not only simple in structure, are easily assembled to, and have better flexibility, reduces processing cost；The design of driven wheel tooth tip has pad, and installation rotation connection piece on pad, driven wheel tine length adds rotation connection leaf length equal with driving wheel tine length, the volume of oil outlet chamber increased, to improve working efficiency.

Description

A kind of multi-joint hydraulic gear pump of direct-drive type transmission

Technical field

The utility model relates to gear pump machinery field, espespecially a kind of direct-drive type is driven multi-joint hydraulic gear pump.

Background technique

Gear pump is that swept volume changes and movement is to convey liquid or make by being formed by between pumping cylinder and meshing gear Pressurization drum pump.Two enclosure spaces are formed by two gears, the pump housing and front and rear covers, when gear rotation, are out of gear The volume in the space of side becomes larger from small, forms vacuum, draws liquid into, the volume in the space of gear engagement side from becoming smaller greatly, and Liquid is squeezed into pipeline.Suction chamber and discharge chamber are that the path of contact of two gears is leaned on to separate.Gear pump is also positive row Measure device, i.e., as the piston in a cylinder barrel, as soon as when tooth enters the fluid space of another tooth, liquid is by mechanically It squeezes and ejects.Because liquid be it is incompressible, liquid and tooth cannot occupy the same space in the same time, in this way, Liquid is just excluded.Due to the continuous engagement of tooth, this phenomenon is just continuously occurring, thus also just provides in the outlet of pump One continuous exclusion amount pumps every revolution, and the amount of discharge is the same.With the rotation incessantly of drive shaft, pump is just not yet Fluid is discontinuously discharged.

Multi-joint hydraulic gear pump is that two or more gear pumps are together in series along axial, the driving of You Yigen drive shaft, respectively The discharge capacity of pump can any combination a kind of device.Multi-joint hydraulic gear pump is of wide application, various lathes, light industry and machinery, Fork truck, loading machine, automobile, diesel locomotive, aircraft and other mechanically have use.Multi-joint hydraulic gear pump, which exists, at present adds Work complex process, processing efficiency be low, assembly difficulty, the disadvantages of noise is big, working life is short.

Utility model content

The technical problems to be solved in the utility model is that there are processing technology complexity, processing effect for current multi-joint hydraulic gear pump Rate is low, assembly difficulty, the disadvantages of noise is big, working life is short, the shortcomings that in order to overcome the prior art, now provides a kind of straight drive Formula is driven multi-joint hydraulic gear pump.

In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:

The utility model provides a kind of direct-drive type transmission multi-joint hydraulic gear pump, including rotation connection piece is connected with axis hole Part；Main gear shaft mounting hole is installed on shell and master gear shaft is installed out of gear shaft mounting hole, main gear shaft mounting hole；It is main Rotary gear shaft installs driving gear by axis hole connector, and design has segmented threaded portion in master gear shaft；Driving gear end Design has salient point on face, and design has axle hole screw thread in driving gear upper whorl axial hole, and fixed card buckle is installed in axle hole edge；Axis Hole connector includes axis hole ring and circle internal screw thread, and axis hole ring interior design has circle internal screw thread, there is recessed design on ring normal plane Hole, the design of axis hole ring top surface have fixed card slot, and installation compresses button point on fixed card slot；Driven gear dead axle is mounted on from gear In shaft mounting hole, driven clearance between gear teeth is driven gear tooth socket, and the design of driven wheel tooth tip has pad, and installation turns on pad Dynamic connection sheet.

As a kind of optimal technical scheme of the utility model, segmented flighted length and two axis hole rings and main tooth Wheel shaft normal plane length summation is identical, and segmented threaded portion is corresponding with circle internal screw thread and axle hole screw thread.

As a kind of optimal technical scheme of the utility model, salient point diameter and depth are opposite with shrinkage pool diameter and depth It answers.

As a kind of optimal technical scheme of the utility model, driving gear two sides normal plane is respectively mounted axis hole connector.

As a kind of optimal technical scheme of the utility model, the driven gear teeth are less than the active gear teeth, and driven gear tooth socket is small In active tooth socket, driven wheel tine length adds rotation connection leaf length equal with driving wheel tine length.

As a kind of optimal technical scheme of the utility model, segmented sets equidistant intervals on threaded portion, in screw thread Portion's selectively installation driving gear.

The utility model beneficial effect achieved is: segmented threaded portion is opposite with circle internal screw thread and axle hole screw thread It answers, driving gear is tightened in master gear shaft by screw thread, design has salient point on driving gear end face, sets on ring normal plane It is mutually chimeric with shrinkage pool by salient point in respect of shrinkage pool, so that connecting end surface better tightness；Setting is equidistantly sowed discord on segmented screw thread Every in threaded portion, selectively installation driving gear, the utility model are not only simple in structure, are easily assembled to, and have better Flexibility reduces processing cost；The design of driven wheel tooth tip has pad, installation rotation connection piece, driven wheel on pad Tine length adds rotation connection leaf length equal with driving wheel tine length, the volume of oil outlet chamber is increased, to improve working efficiency.

Detailed description of the invention

Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.

In the accompanying drawings:

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the utility model side structure schematic diagram；

Fig. 3 is the utility model driving gear structural schematic diagram；

Fig. 4 is the utility model axis hole connector positive structure schematic；

Fig. 5 is the utility model axis hole connector structure schematic diagram；

Fig. 6 is the utility model schematic diagram of housing structure.

Figure label: 1, shell；2, main gear shaft mounting hole；3, from gear shaft mounting hole；4, master gear shaft；5, axis hole Connector；51, axis hole ring；52, internal screw thread is enclosed；53, ring normal plane；54, shrinkage pool；55, fixed card slot；56, button point is compressed；6, Driving gear；7, segmented threaded portion；8, driving gear end face；9, salient point；10, axle hole；11, axle hole screw thread；12, fixed Buckle；13, driven gear dead axle；14, the driven gear teeth；15, driven gear tooth socket；16, pad；17, it is rotatablely connected piece.

Specific embodiment

In the description of the present invention, it should be noted that the instructions such as term "vertical", "upper", "lower", "horizontal" Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification Description, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation Make, therefore should not be understood as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through It is indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.

Embodiment: as shown in figures 1 to 6, the utility model provides a kind of direct-drive type transmission multi-joint hydraulic gear pump, including turns Dynamic connection sheet 17 and axis hole connector 5；Main gear shaft mounting hole 2 is installed and from gear shaft mounting hole 3, main gear shaft on shell 1 Master gear shaft 4 is installed in mounting hole 2；Master gear shaft 4 installs driving gear 6, master gear shaft 4 by axis hole connector 5 Upper design has segmented threaded portion 7；Design has salient point 9 on driving gear end face 8, there is design in 6 upper whorl axial hole 10 of driving gear Fixed card buckle 12 is installed in axle hole screw thread 11,10 edge of axle hole；Axis hole connector 5 includes axis hole ring 51 and circle internal screw thread 52,51 interior design of axis hole ring has circle internal screw thread 52, and design has shrinkage pool 54, the design of 51 top surface of axis hole ring on ring normal plane 53 There is fixed card slot 55, installation compresses button point 56 on fixed card slot 55；Driven gear dead axle 13 is mounted on from gear shaft mounting hole 2 Interior, driven 14 gap of the gear teeth is driven gear tooth socket 15, and driven 14 tip designs of the gear teeth have pad 16, install on pad 16 It is rotatablely connected piece 17.

Further, 7 length of segmented threaded portion is identical as two axis hole rings 51 and main gear shaft normal plane length summation, Segmented threaded portion 7 is corresponding with circle internal screw thread 52 and axle hole screw thread 11.

Further, 9 diameter of salient point and depth are corresponding with 54 diameter of shrinkage pool and depth.

Further, 6 two sides normal plane of driving gear is respectively mounted axis hole connector 5.

Further, driven 14 length of the gear teeth is less than driving wheel tine length, and driven gear tooth socket 15 is less than drive gear teeth Slot, driven 14 length of the gear teeth add rotation connection 17 length of piece equal with driving wheel tine length.

Further, equidistant intervals are set on segmented threaded portion 7, in threaded portion selectively installation driving gear 6.

It is specific:

Master gear shaft 4 is installed, master gear shaft 4 installs driving tooth by axis hole connector 5 in main gear shaft mounting hole 2 Wheel 6,51 interior design of axis hole connector upper shaft hole ring have circle internal screw thread 52, and design has wheel in 6 upper whorl axial hole 10 of driving gear Axis hole screw thread 11, design has segmented threaded portion 7 in master gear shaft 6；Segmented threaded portion 7 and circle internal screw thread 52 and axle hole Screw thread 11 is corresponding, and driving gear 6 is tightened in master gear shaft 4 by screw thread, and 6 two sides normal plane of driving gear is respectively mounted axis Hole connector 5, axis hole connector 5 are equally tightened in master gear shaft 4 by screw thread, there is convex design on driving gear end face 8 9 are put, design has shrinkage pool 54 on ring normal plane 53, and it is mutually chimeric with shrinkage pool 54 by salient point 9, so that connecting end surface better tightness； Driven gear dead axle 13 is mounted on out of gear shaft mounting hole 2, and driven 14 gap of the gear teeth is driven gear tooth socket 15, the driven gear teeth 14 tip designs have pad 16, and installation rotation connection piece 17 on pad 16, driven 14 length of the gear teeth adds rotation connection piece 17 Length is equal with driving wheel tine length, increases the volume of oil outlet chamber, to improve working efficiency.

It is worth noting that: whole device realizes control to it by main control button, sets since control button is matched Standby is commonly used equipment, belongs to existing Changshu technology, details are not described herein its electrical connection and specific circuit structure.

Finally, it should be noted that the above is only the preferred embodiment of the utility model, it is not limited to practical It is novel, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc. With replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include It is within the protection scope of the utility model.

Claims (6)

1. a kind of direct-drive type is driven multi-joint hydraulic gear pump, which is characterized in that including rotation connection piece (17) and axis hole connector (5)；Main gear shaft mounting hole (2) and the installation out of gear shaft mounting hole (3), main gear shaft mounting hole (2) are installed on shell (1) Master gear shaft (4)；Master gear shaft (4) is set on (4) by axis hole connector (5) installation driving gear (6), master gear shaft In respect of segmented threaded portion (7)；There is salient point (9) design on driving gear end face (8), in driving gear (6) upper whorl axial hole (10) Design has axle hole screw thread (11), and fixed card buckle (12) are installed in axle hole (10) edge；Axis hole connector (5) includes axis hole ring (51) and circle internal screw thread (52) are enclosed, axis hole ring (51) interior design has circle internal screw thread (52), and designing on ring normal plane (53) has Shrinkage pool (54), the design of axis hole ring (51) top surface have fixed card slot (55), and installation compresses button point (56) on fixed card slot (55)；From Moving gear dead axle (13) is mounted on out of gear shaft mounting hole (2), and the driven gear teeth (14) gap is driven gear tooth socket (15), from Driving wheel tooth (14) tip designs have pad (16), installation rotation connection piece (17) on pad (16).

2. a kind of direct-drive type according to claim 1 is driven multi-joint hydraulic gear pump, which is characterized in that segmented threaded portion (7) length is identical as two axis hole rings (51) and main gear shaft normal plane length summation, segmented threaded portion (7) and circle internal screw thread (52) and axle hole screw thread (11) is corresponding.

3. a kind of direct-drive type according to claim 1 is driven multi-joint hydraulic gear pump, which is characterized in that salient point (9) diameter It is corresponding with shrinkage pool (54) diameter and depth with depth.

4. a kind of direct-drive type according to claim 1 is driven multi-joint hydraulic gear pump, which is characterized in that driving gear (6) Two sides normal plane is respectively mounted axis hole connector (5).

5. a kind of direct-drive type according to claim 1 is driven multi-joint hydraulic gear pump, which is characterized in that the driven gear teeth (14) Length is less than driving wheel tine length, and driven gear tooth socket (15) is less than driving gear tooth socket, and the driven gear teeth (14) length adds rotation Connection sheet (17) length is equal with driving wheel tine length.

6. a kind of direct-drive type according to claim 1 is driven multi-joint hydraulic gear pump, which is characterized in that segmented threaded portion (7) equidistant intervals are set on, in threaded portion selectively installation driving gear (6).