CN215528841U

CN215528841U - Digital hydraulic proportional control integrated servo stepping motor

Info

Publication number: CN215528841U
Application number: CN202122016778.XU
Authority: CN
Inventors: 李一新; 杨影; 李日平
Original assignee: Guangzhou Ruibo Electromechanical Technology Co ltd
Current assignee: Guangzhou Ruibo Electromechanical Technology Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-01-14
Anticipated expiration: 2031-08-25

Abstract

The utility model discloses a digital hydraulic proportional control integrated servo stepping motor which comprises a motor rear end cover, a motor rear end bearing, a rotor, a motor shaft, a motor front end bearing, a motion conversion sliding sleeve, a screw rod shaft, a control circuit board, a DIN plug, a DIN socket and a motor front end cover. The utility model is a servo stepping motor hydraulic control pair integrating the driving and control modules into a whole, can replace an electromagnet of a hydraulic electromagnetic directional valve, has the advantages of high control precision, stable work, adjustable speed, small impact and the like compared with the electromagnet, and the control precision of the utility model is not easy to be influenced by temperature drift, voltage fluctuation and current fluctuation to cause control misalignment.

Description

Digital hydraulic proportional control integrated servo stepping motor

Technical Field

The utility model relates to the technical field of hydraulic electromagnetic directional valves, in particular to a digital hydraulic proportional control integrated servo stepping motor.

Background

The conventional hydraulic electromagnetic directional valve usually comprises an electromagnet, and the electromagnet generated by the electromagnet controls the movement of a valve core so as to realize the direction change, and the electromagnet has the following disadvantages: when the electromagnet works, the valve core moves rapidly, the displacement speed is not controllable, and the generated impact force is large, so that the service life of an execution element is short, and the work is unstable; under the working condition of long-time work, the energy consumption is high, the electromagnetic valve is electrified with large current for a long time, the temperature rise is short, and the coil is easy to burn under the condition of unstable voltage; in addition, the electromagnet is easily influenced by temperature drift, voltage fluctuation and current fluctuation when controlling a hydraulic element, the precision is not easy to control, the work is unstable, and the influence is more obvious particularly on mobile hydraulic equipment.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a digital hydraulic proportional control integrated servo stepping motor which can solve the technical problems.

(II) technical scheme

In order to solve the technical problems, the utility model provides the following technical scheme: a digital hydraulic proportional control integrated servo stepper motor comprising: the motor comprises a motor rear end cover, a motor rear end bearing, a rotor, a motor shaft, a motor front end bearing, a motion conversion sliding sleeve, a screw shaft, a control circuit board, a DIN plug, a DIN socket and a motor front end cover, wherein the rotor is arranged close to the motor rear end cover; the control circuit board and the DIN socket are located above the rear end cover of the motor, and the DIN plug is connected with the DIN socket.

Preferably, the digital hydraulic proportional control integrated servo stepping motor further comprises an absolute value sensor, and the absolute value sensor is arranged close to the rotor.

Preferably, the digital hydraulic proportional control integrated servo stepping motor further comprises a circuit board box, the circuit board box is arranged on the rear end cover of the motor, and the control circuit board is arranged in the circuit board box.

Preferably, the digital hydraulic proportional control integrated servo stepping motor further comprises a bayonet lock, and the bayonet lock is detachably arranged on the screw rod shaft.

Preferably, the digital hydraulic proportional control integrated servo stepping motor further comprises a sealing check ring, a sealing ring, an O-shaped ring and a Glare ring, wherein the sealing check ring, the sealing ring and the O-shaped ring are arranged on the motor shaft, and the Glare ring is arranged on the outer side of the O-shaped ring.

(III) advantageous effects

The utility model is a servo stepping motor hydraulic control pair integrating a driving module and a control module, can replace an electromagnet of a hydraulic electromagnetic directional valve, and has the following advantages compared with the traditional electromagnet control: (1) the control precision is high, the work is stable, the speed is adjustable, the impact is small, and the service life of the actuating element is prolonged; (2) compared with the electromagnet, the control precision is not easily affected by temperature drift, voltage fluctuation and current fluctuation to cause control misalignment; (3) the working temperature is low, so that the device is more suitable for working conditions of long-time operation; (4) the thrust is large, and compared with a hydraulic element controlled by a traditional electromagnet, the anti-pollution capacity is stronger; (5) the integrated electric control module is integrated and can be set by a program, so that the displacement degree of the valve core can be adjusted at will; (6) under stable long-term working conditions, large current does not need to be provided for keeping, and the energy-saving effect is good.

Drawings

Fig. 1 is a schematic structural diagram of a digital hydraulic proportional control integrated servo stepping motor according to the present invention.

The reference numbers in the figures are: the device comprises a motor rear end cover 1, a motor rear end bearing 2, a rotor 3, a motor shaft 4, a motor front end bearing 5, a sealing retainer ring 6, a sealing ring 7, an O-shaped ring 8, a Glare ring 9, a motion conversion sliding sleeve 10, a screw shaft 11, a bayonet 12, a circuit board box 13, a control circuit board 14, a DIN plug 15, a DIN socket 16, an absolute value sensor 17 and a motor front end cover 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model relates to a digital hydraulic proportional control integrated servo stepping motor, which comprises: the motor comprises a motor rear end cover 1, a motor rear end bearing 2, a rotor 3, a motor shaft 4, a motor front end bearing 5, a motion conversion sliding sleeve 10, a screw shaft 11, a control circuit board 14, a DIN plug 15, a DIN socket 16 and a motor front end cover 18.

The rotor 3 is arranged close to the motor rear end cover 1, the motor shaft 4 is connected with the rotor 3, the motor shaft 4 penetrates through the motor rear end bearing 2 and the motor front end bearing 5, the front end of the motor shaft 4 is connected with the motion conversion sliding sleeve 10, part of the motion conversion sliding sleeve 10 is exposed out of the motor front end cover 18, the motion conversion sliding sleeve 10 is provided with internal threads, the screw shaft 11 is in threaded connection with the motion conversion sliding sleeve 10, part of the screw shaft 11 is exposed out of the motion conversion sliding sleeve 10, and the axes of the motor shaft 4, the motion conversion sliding sleeve 10 and the screw shaft 11 are all located on the same straight line. The control circuit board 14 and the DIN socket 16 are positioned above the rear end cover 1 of the motor, and the DIN plug 15 is connected with the DIN socket 16.

The working principle of the digital hydraulic proportional control integrated servo stepping motor is as follows: the rotor 3 drives the motor shaft 4 to rotate forwards or reversely, the motor shaft 4 drives the motion conversion sliding sleeve 10 to rotate together, and the screw shaft 11 makes right or left linear motion through threaded connection, so that the conversion of rotation-linear motion is realized. It should be understood that by further connecting the screw shaft 11 of the present invention to the valve core, the valve core can be driven to synchronously make a right or left linear motion, thereby implementing the functions of a hydraulic electromagnetic directional valve such as ordinary reversing, proportional reversing, pressure regulation, flow regulation, etc.

The utility model is a servo stepping motor hydraulic control pair integrating a driving module and a control module, can replace an electromagnet of a hydraulic electromagnetic directional valve, and has the following advantages compared with the traditional electromagnet control: (1) the control precision is high, the work is stable, the speed is adjustable, the impact is small, and the service life of the actuating element is prolonged; (2) compared with the electromagnet, the control precision is not easily affected by temperature drift, voltage fluctuation and current fluctuation to cause control misalignment; (3) the working temperature is low, so that the device is more suitable for working conditions of long-time operation; (4) the thrust is large, and compared with a hydraulic element controlled by a traditional electromagnet, the anti-pollution capacity is stronger; (5) the integrated electric control module is integrated and can be set by a program, so that the displacement degree of the valve core can be adjusted at will; (6) under stable long-term working conditions, large current does not need to be provided for keeping, and the energy-saving effect is good. In addition, the utility model adopts a modular design, and can realize digital bus control; the whole device has light weight and small volume; the utility model can be applied to most of the electromagnetic valve hydraulic control elements.

The present embodiment further includes an absolute value sensor 17, the absolute value sensor 17 being disposed near the rotor 3, the absolute value sensor 17 being configured to detect a position change value of the rotor 3.

The control circuit board 14 is used for controlling the working state of the rotor 3; the control circuit board 14 may be provided with a network communication port to implement network digital control. The motor back end cover comprises a motor back end cover 1, a circuit board box 13 and a control circuit board 14, wherein the motor back end cover 1 is arranged on the motor back end cover 13.

In addition, the present embodiment further comprises a detent 12, wherein the detent 12 is detachably disposed on the screw shaft 11 and is used for limiting the movement of the screw shaft 11 in the non-working state.

In addition, this embodiment further includes a seal retainer ring 6, a seal ring 7, an O-ring 8, and a gurley ring 9, the seal retainer ring 6, the seal ring 7, and the O-ring 8 are provided on the motor shaft 4, the gurley ring 9 is provided outside the O-ring 8, and the seal retainer ring 6, the seal ring 7, the O-ring 8, and the gurley ring 9 are provided to achieve good sealing performance.

It is to 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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

1. A digital hydraulic proportional control integrated servo stepper motor, comprising: the motor comprises a motor rear end cover, a motor rear end bearing, a rotor, a motor shaft, a motor front end bearing, a motion conversion sliding sleeve, a lead screw shaft, a control circuit board, a DIN plug, a DIN socket and a motor front end cover, wherein the rotor is arranged close to the motor rear end cover; the control circuit board and the DIN socket are located above the rear end cover of the motor, and the DIN plug is connected with the DIN socket.

2. The digital hydraulic proportional control integrated servo stepper motor of claim 1, wherein: still include absolute value sensor, absolute value sensor is close to the rotor setting.

3. The digital hydraulic proportional control integrated servo stepper motor of claim 1, wherein: the motor rear end cover is characterized by further comprising a circuit board box, the circuit board box is arranged on the motor rear end cover, and the control circuit board is arranged in the circuit board box.

4. The digital hydraulic proportional control integrated servo stepper motor of claim 1, wherein: the screw rod is characterized by further comprising a clamping pin, and the clamping pin is detachably arranged on the screw rod shaft.

5. The digital hydraulic proportional control integrated servo stepper motor of claim 1, wherein: the motor shaft is characterized by further comprising a sealing check ring, a sealing ring, an O-shaped ring and a Glare ring, wherein the sealing check ring, the sealing ring and the O-shaped ring are arranged on the motor shaft, and the Glare ring is arranged on the outer side of the O-shaped ring.