CN220204564U - Stepless speed regulation machine tool hydraulic pump - Google Patents

Abstract

The utility model discloses a stepless speed regulation machine tool hydraulic pump, which comprises a pump body, wherein a gearbox is arranged on the pump body, two fixed blocks are fixedly connected to the outer wall of the top of the gearbox, a screw is rotationally connected between the two fixed blocks, a sliding frame is connected to the outer side of the screw in a threaded manner, longitudinal sliding grooves are formed in the outer walls of two sides of the sliding frame, oblique sliding grooves are formed in the outer walls of two sides of the gearbox, and the same sliding strip is connected in the two oblique sliding grooves in a sliding manner. The utility model can change the transmission ratio between the driving cone pulley and the driven cone pulley, so that the rotation speed of the driven cone pulley can be uniformly and smoothly changed, the hydraulic pump can perform stepless speed regulation, and the working efficiency is improved.

Description

Stepless speed regulation machine tool hydraulic pump

Technical Field

The utility model relates to the technical field of hydraulic pumps, in particular to a machine tool hydraulic pump with stepless speed regulation.

Background

The hydraulic pump is a power element of a hydraulic system, and is driven by an electric motor to suck oil from a hydraulic oil tank, form pressure oil, discharge the pressure oil and send the pressure oil to an executing element.

Through retrieval, the Chinese patent with the publication number of CN207514002U discloses a main shaft counterweight machine tool hydraulic pump station, which comprises a liquid storage tank, a motor, an oil absorption filter, a hydraulic pump, a valve block, a first energy accumulator and a second energy accumulator. However, there is a disadvantage in that the hydraulic pump itself cannot perform stepless speed regulation, and the hydraulic pump cannot be ensured to operate at the most advantageous speed, affecting the working efficiency.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a stepless speed regulation hydraulic pump of a machine tool.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a lathe hydraulic pump of stepless speed regulation, includes the pump body, is provided with the gearbox on the pump body, the top outer wall fixedly connected with two fixed blocks of gearbox, two rotate between the fixed block and be connected with the screw rod, the outside threaded connection of screw rod has the balladeur train, and vertical spout has all been seted up to the both sides outer wall of balladeur train, the slant spout has all been seted up to the both sides outer wall of gearbox, two equal sliding connection has same draw runner in the slant spout, the both sides of draw runner all fixedly connected with slider, and slider and vertical spout looks sliding connection, one side rotation of draw runner is connected with the drive wheel, one side inner wall rotation of gearbox is connected with driven cone and drive cone, and the drive wheel forms the transmission cooperation with driven cone and drive cone, one side of gearbox is equipped with the actuating mechanism that drives the drive cone and carries out pivoted.

As a still further scheme of the utility model, the driving mechanism comprises a fixed plate, the fixed plate is fixed on the outer wall of one side of the gearbox, the top of the fixed plate is fixedly connected with a driving motor, and one end of an output shaft of the driving motor penetrates through the gearbox to be fixed with the driving cone pulley.

As a still further proposal of the utility model, the pump body comprises a driving shaft, and one end of the driving shaft is fixed with a driven cone pulley.

As a still further proposal of the utility model, two guide rods are fixedly connected between the two fixed blocks, and one end of the screw rod penetrating through one of the fixed blocks is fixedly connected with a knob.

As a still further scheme of the utility model, a plurality of anti-skid patterns are arranged on the circumferential outer wall of the driving wheel.

As a still further proposal of the utility model, the bottom of the fixing plate is fixedly connected with a fixing rib, the fixing rib is fixed with the gearbox, and a plurality of fixing lugs are arranged on the outer side of the gearbox.

As still further scheme of the utility model, the top of the fixed plate is fixedly connected with a rubber pad, and the rubber pad is positioned between the driving motor and the fixed plate.

The beneficial effects of the utility model are as follows:

1. through the cooperation of drive cone pulley, driven cone pulley and drive wheel, actuating mechanism drives the drive cone pulley and rotates, and the drive cone pulley drives driven cone pulley through the drive wheel and rotates, and the staff drives the screw rod through the knob and rotates, and screw rod, balladeur train, slider and draw runner drive the drive wheel and remove, and the drive wheel is through removing the change with the contact point of drive cone pulley and driven cone pulley to the transmission ratio between drive cone pulley and the driven cone pulley has been changed, and the rotational speed that makes driven cone pulley can be evenly smooth change, makes the hydraulic pump carry out stepless speed regulation, has improved work efficiency.

2. Through the setting of anti-skidding line, during operation of the hydraulic pump, the anti-skidding line contacts with the driving cone pulley and the driven cone pulley, increases the friction force between the driving wheel and the driving cone pulley and between the driving wheel and the driven cone pulley, and prevents slipping between the driving wheel and the driving cone pulley and between the driving wheel and the driven cone pulley, thereby influencing the transmission efficiency.

3. Through the setting of fixed ear, when the hydraulic pump is installed on the lathe, fixed ear and lathe are fixed mutually through the bolt, make the installation of hydraulic pump more firm, improved the stability of hydraulic pump during operation.

Drawings

FIG. 1 is a schematic view of a front side three-dimensional structure of a stepless speed regulating hydraulic pump of a machine tool;

FIG. 2 is a schematic view of a partial cross-sectional structure of a stepless speed regulating hydraulic pump for a machine tool according to the present utility model;

fig. 3 is an enlarged schematic diagram of a portion a of a machine hydraulic pump with stepless speed regulation according to the present utility model.

In the figure: 1. a gearbox; 2. a pump body; 3. a fixed ear; 4. an inclined chute; 5. a carriage; 6. a longitudinal chute; 7. a slide block; 8. a fixed block; 9. a screw; 10. a guide rod; 11. a knob; 12. a fixing plate; 13. a rubber pad; 14. fixing ribs; 15. driving cone pulley; 16. driven cone pulley; 17. a drive shaft; 18. a slide bar; 19. a driving wheel; 20. anti-skid lines.

Detailed Description

While the present disclosure will be fully described with reference to the accompanying drawings, which contain preferred embodiments of the present disclosure, it is to be understood that prior to the description, one of ordinary skill in the art may modify the utility model herein described while achieving the technical effects of the present disclosure, and thus, it is to be understood that the above description is a broad disclosure to one of ordinary skill in the art and is not to be taken as limiting the exemplary embodiments described in the present disclosure.

Referring to fig. 1-3, a stepless speed regulating hydraulic pump for a machine tool comprises a pump body 2, wherein a gearbox 1 is arranged on the pump body 2, the specific structure and working principle of the pump body 2 are the prior art, the content belongs to common general knowledge, and the application does not relate to the improvement of the structure and working principle of the pump body, so that the detailed description is not carried out;

in the scheme, two fixing blocks 8 are fixed on the top outer wall of the gearbox 1 through bolts, a screw rod 9 is rotationally connected between the two fixing blocks 8, a sliding frame 5 is connected to the outer side threads of the screw rod 9, longitudinal sliding grooves 6 are formed in the outer walls of two sides of the sliding frame 5, oblique sliding grooves 4 are formed in the outer walls of two sides of the gearbox 1, the same sliding strips 18 are slidingly connected in the two oblique sliding grooves 4, sliding blocks 7 are fixedly arranged on two sides of the sliding strips 18 through bolts, the sliding blocks 7 are slidingly connected with the longitudinal sliding grooves 6, a driving wheel 19 is rotationally connected to one side inner wall of the gearbox 1, a driving cone 15 and a driven cone 16 are rotationally connected to one side inner wall of the gearbox 1, the driving wheel 19 is in transmission fit with the driven cone 16 and the driving cone 15, and the contact point between the driving cone 15 and the driven cone 16 is changed through movement, so that the transmission ratio between the driving cone 15 and the driven cone 16 is changed, the rotation speed of the driven cone 16 can be uniformly and smoothly changed, and the purpose of stepless speed regulation of the hydraulic pump is achieved;

it should be noted that, the circumferential outer wall of the driving wheel 19 is provided with a plurality of anti-skidding patterns 20, the anti-skidding patterns 20 are uniformly distributed, long stripes are also arranged on the driving cone pulley 15 and the driven cone pulley 16, and the long stripes and the anti-skidding patterns 20 can increase the friction force between the driving wheel 19 and the driving cone pulley 15 and the driven cone pulley 16;

in the utility model, a driving shaft 17 is arranged on a pump body 2, one end of the driving shaft 17 is fixed with a roll shaft of a driven cone pulley 16 through a coupling, one end of a driving cone pulley 15 is provided with a driving mechanism, the driving mechanism comprises a fixing plate 12, the fixing plate 12 is welded on the outer wall of a gearbox 1, a driving motor is fixed on the top of the fixing plate 12 through bolts, one end of an output shaft of the driving motor is fixed with the roll shaft of the driving cone pulley 15 through a coupling, the driving motor is started, the driving motor drives the driving cone pulley 15 to rotate, and the driving wheel 19 drives the driven cone pulley 16 to rotate, so that the driving shaft 17 of a hydraulic pump finally rotates, and the hydraulic pump starts working;

in addition, two guide rods 10 are fixed between the two fixed blocks 8 in a plugging manner, the sliding frame 5 slides on the guide rods 10, the guide rods 10 can prevent the sliding frame 5 from shifting when moving, and a knob 11 is fixed at one end of the screw 9 penetrating through one of the fixed blocks 8 through a bolt, so that the sliding frame is convenient to hold and adjust;

when the hydraulic pump is required to be regulated, a worker drives the screw rod 9 to rotate through the knob 11, the screw rod 9 drives the sliding frame 5 to move, the sliding frame 5 drives the sliding block 7 to move, the sliding block 7 drives the sliding bar 18 to move along the inclined sliding groove 4, meanwhile, the sliding block 7 moves along the longitudinal sliding groove 6, the sliding bar 18 drives the driving wheel 19 to move, and the driving wheel 19 changes the contact point with the driving cone 15 and the driven cone 16 through movement, so that the transmission ratio between the driving cone 15 and the driven cone 16 is changed, the rotating speed of the driven cone 16 can be uniformly and smoothly changed, and the purpose of stepless speed regulation of the hydraulic pump is achieved.

The bottom of fixed plate 12 is fixed with fixed muscle 14 through the bolt, and fixed muscle 14 is fixed mutually with gearbox 1, and fixed muscle 14 can strengthen the intensity of faying surface between fixed plate 12 and gearbox 1, and the top of fixed plate 12 bonds there is rubber pad 13, and rubber pad 13 is located between driving motor and the fixed plate 12, and the vibrations that driving motor during operation produced can be absorbed to rubber pad 13, and the outside of gearbox 1 is equipped with a plurality of fixed lugs 3, and fixed lug 3 evenly distributed can pass through fixed lug 3 with the hydraulic pump with the bolt and fix on the lathe.

Working principle: when the hydraulic pump is used, the driving motor is started, the driving motor drives the driving cone pulley 15 to rotate, the driving wheel 19 drives the driven cone pulley 16 to rotate, and then the driving shaft 17 is driven to rotate, so that the hydraulic pump starts to work;

when the hydraulic pump is required to be regulated, a worker drives the screw 9 to rotate through the knob 11, so that the sliding frame 5 moves, the sliding frame 5 drives the sliding bar 18 connected with the sliding block 7 to move along the inclined sliding groove 4, the sliding bar 18 drives the driving wheel 19 to move, and the transmission ratio between the driving cone pulley 15 and the driven cone pulley 16 is changed by changing the contact point between the driving wheel 19 and the driving cone pulley 15 and the driven cone pulley 16, so that the rotating speed of the driven cone pulley 16 can be uniformly and smoothly changed, and the purpose of stepless speed regulation of the hydraulic pump is achieved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a lathe hydraulic pump of stepless speed regulation, includes pump body (2), is provided with gearbox (1) on pump body (2), its characterized in that, two of top outer wall fixedly connected with fixed block (8) of gearbox (1), two rotate between fixed block (8) and be connected with screw rod (9), the outside threaded connection of screw rod (9) has balladeur train (5), and vertical spout (6) have all been seted up to the both sides outer wall of balladeur train (5), slant spout (4) have all been seted up to the both sides outer wall of gearbox (1), two equal sliding connection has same draw runner (18) in slant spout (4), the both sides of draw runner (18) are all fixedly connected with slider (7), and slider (7) and vertical spout (6) looks sliding connection, one side rotation of draw runner (18) is connected with driving cone (19), one side inner wall rotation of gearbox (1) is connected with driven cone (16) and driving cone (15), and driving wheel (19) and driven cone (16) and driving cone (15) form transmission cooperation, one side that gearbox (1) is equipped with driving cone (15) drives.

2. The machine tool hydraulic pump with stepless speed regulation according to claim 1, wherein the driving mechanism comprises a fixing plate (12), the fixing plate (12) is fixed on the outer wall of one side of the gearbox (1), the top of the fixing plate (12) is fixedly connected with a driving motor, and one end of an output shaft of the driving motor penetrates through the gearbox (1) to be fixed with a driving cone pulley (15).

3. A machine hydraulic pump with stepless speed regulation according to claim 1, characterized in that the pump body (2) comprises a driving shaft (17), and one end of the driving shaft (17) is fixed with a driven cone pulley (16).

4. The stepless speed regulating hydraulic pump for machine tools according to claim 1, wherein two guide rods (10) are fixedly connected between two fixed blocks (8), and a knob (11) is fixedly connected to one end of a screw rod (9) penetrating one fixed block (8).

5. A machine tool hydraulic pump with stepless speed regulation according to claim 1, characterized in that the circumferential outer wall of the driving wheel (19) is provided with a plurality of anti-skid patterns (20).

6. The stepless speed regulating machine tool hydraulic pump according to claim 2, wherein the bottom of the fixing plate (12) is fixedly connected with a fixing rib (14), the fixing rib (14) is fixed with the gearbox (1), and a plurality of fixing lugs (3) are arranged on the outer side of the gearbox (1).

7. A machine tool hydraulic pump with stepless speed regulation according to claim 2, characterized in that the top of the fixed plate (12) is fixedly connected with a rubber pad (13), and the rubber pad (13) is located between the driving motor and the fixed plate (12).