CN218449756U

CN218449756U - Low-resistance safety type electric cylinder

Info

Publication number: CN218449756U
Application number: CN202222795418.9U
Authority: CN
Inventors: 陈梓铭; 洪广安
Original assignee: Guangzhou Shiper Transmission Equipment Co ltd
Current assignee: Guangzhou Shiper Transmission Equipment Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-02-03
Anticipated expiration: 2032-10-24

Abstract

The utility model relates to a low resistance safety type electricity jar, including synchronous pulley case and cylinder, the right flank of synchronous pulley case is provided with the bottom plate, is lieing in the right side of bottom plate be provided with the bearing frame respectively and with bearing frame fixed connection's cylinder, be provided with one corner contact bearing in the bearing frame, the inner chamber of cylinder is provided with and runs through to the left ball screw subassembly of synchronous pulley case. This low resistance safety type electric cylinder, cooperation through liquid needle bearing and deflector, when the piston removes, adopt rolling friction's rotational structure, replace sliding friction's rotational structure originally, make the electric cylinder have lower resistance, ensure the change of resistance to the influence of electric cylinder pressure output, make the electric cylinder can have stable high accuracy pressure output, and this electric cylinder external outage band-type brake disc, under the circumstances of having a power failure or unexpected outage, the brake disc band-type brake, the load that makes electric cylinder power shaft and connection can not fall down owing to losing the ability of losing the motor, ensure safety in production.

Description

Low-resistance safety type electric cylinder

Technical Field

The utility model relates to an electricity jar technical field specifically is a low resistance safety type electricity jar.

Background

Servo electric cylinder principle: the servo electric cylinder is a modularized product which integrates a servo motor and a lead screw, converts the rotary motion of the servo motor into linear motion, and simultaneously converts the optimal advantages of the servo motor, namely accurate rotating speed control, accurate rotating speed control and accurate torque control into accurate speed control, accurate position control and accurate thrust control; realizing a brand new revolutionary product of a high-precision linear motion series.

In the prior art, as a waterproof servo electric cylinder provided by chinese patent (publication number: CN 212367042U), the case ensures the waterproof performance of the servo electric cylinder through a sealing structure and a protective cover, a cylinder body of the electric cylinder is divided into a first sealed chamber and a second sealed chamber by a piston body, and a through slot for connecting the first sealed chamber and the second sealed chamber is formed on the piston, so as to ensure the balance of air pressure in the cylinder body of the electric cylinder.

Disclosure of Invention

Solves the technical problem

To prior art not enough, the utility model provides a low resistance safety type electricity jar to solve the problem that proposes in the above-mentioned background.

Technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a low resistance safety type electric cylinder, includes synchronous pulley case and cylinder, the right flank of synchronous pulley case is provided with the bottom plate, is lieing in the right side of bottom plate be provided with the bearing frame respectively and with bearing frame fixed connection's cylinder, be provided with one corner contact bearing in the bearing frame, the inner chamber of cylinder is provided with and runs through to the left ball screw subassembly of synchronous pulley case, and the ball screw subassembly is rotatable lieing in synchronous pulley incasement through angular contact bearing, the outside screw thread of ball screw subassembly is provided with the piston, the outside of piston is provided with the liquid needle bearing, the cylinder inboard is provided with the deflector with the liquid needle bearing adaptation and is used for the deflector mounting panel of its installation, the inner chamber of synchronous pulley case is provided with control ball screw subassembly moving synchronizing assembly, the right side of bottom plate is provided with the driving piece that drives synchronizing assembly work in the bottom that lies in the cylinder, the left side of synchronous pulley still is provided with the brake disc subassembly.

Preferably, the synchronizing assembly comprises a driving synchronizing wheel and a driven synchronizing wheel which are rotatably arranged in the inner cavity of the synchronizing wheel box, and a synchronous belt is connected between the driving synchronizing wheel and the driven synchronizing wheel in a transmission manner.

Preferably, the driving part comprises a speed reducer installed on the bottom plate, a torque servo motor is installed on the right side of the speed reducer, and the output end of the speed reducer is connected with the driving synchronizing wheel.

Preferably, the brake disc subassembly is including installing in the left brake disc mounting panel of synchronizing wheel case, the side of brake disc mounting panel is provided with the brake disc of being connected with the ball screw subassembly, the brake disc safety cover is installed in the outside of brake disc.

Preferably, the ball screw assembly comprises a ball screw and two sets of nuts, the two sets of nuts being located on both sides of the angular contact bearing.

Preferably, the right end of the cylinder barrel is detachably provided with a front flange, a guide bushing is arranged in the front flange, and a power shaft connected with a piston is sleeved on the outer side of the ball screw assembly.

Advantageous effects

Compared with the prior art, the utility model provides a low resistance safety type electricity jar possesses following beneficial effect:

this low resistance safety type electric cylinder, cooperation through hydraulic needle bearing and deflector, when the piston removes, adopt rolling friction's anti-rotating structure, replace sliding friction's anti-rotating structure originally, make the electric cylinder have lower resistance, ensure the change of resistance to the influence of electric cylinder pressure output, make the electric cylinder can have stable high accuracy pressure output, and this electric cylinder external outage band-type brake disc, under the circumstances of having a power failure or unexpected outage, the brake disc band-type brake, the load that makes electric cylinder power shaft and connection can not fall down owing to losing the ability of losing the motor, ensure the safety in production, guarantee going on of safety in production.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a view of the internal structure of FIG. 1 according to the present invention;

fig. 3 is a cross-sectional view taken along line B-B of fig. 2 in accordance with the present invention;

FIG. 4 is a drawing showing the guide of the liquid needle bearing and the guide plate according to the present invention;

fig. 5 is an overall structure diagram of the piston of the present invention.

In the figure: the device comprises a torque servo motor 1, a speed reducer 2, a synchronizing wheel box 3, a brake disc mounting plate 4, a brake disc protective cover 5, a bottom plate 6, a bearing seat 7, a cylinder barrel 8, a front flange 9, a power shaft 10, a driving synchronizing wheel 11, a synchronous belt 12, a brake disc 13, a driven synchronizing wheel 14, a guide bush 15, a guide plate mounting plate 16, a guide plate 17, a hydraulic pin bearing 18, a piston 19, a ball screw assembly 20 and an angular contact bearing 21.

Detailed Description

The preferred embodiments of the present invention will be described with reference to the accompanying drawings, which should not be construed as limiting the invention.

It should be noted that these drawings are simplified schematic views, and the basic structure of the present invention is described only in a schematic manner, and therefore, only the configuration related to the present invention is shown.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the invention, and further, the terms "first" and "second" are used merely for descriptive purposes and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features being referred to, whereby the features defining "first" and "second" may explicitly or implicitly include one or more such features, and in the description of the present invention, unless otherwise indicated, the meaning of "plurality" is two or more than two.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, and connected between two elements, and the specific meaning of the terms in the present invention is understood to be that of those skilled in the art.

Referring to fig. 1-5, in an embodiment of the present invention, a low resistance safety electric cylinder includes a synchronous pulley box 3 and a cylinder 8, a bottom plate 6 is disposed on a right side surface of the synchronous pulley box 3, a bearing seat 7 and a cylinder 8 fixedly connected to the bearing seat 7 are disposed on a right side of the bottom plate 6, the bearing seat 7 is fixed to the cylinder 8 by an extension bolt, so as to facilitate subsequent detachment of the cylinder 8, and facilitate maintenance of an internal structure, a corner contact bearing 21 is disposed in the bearing seat 7, a ball screw assembly 20 penetrating to a left side of the synchronous pulley box 3 is disposed in an inner cavity of the cylinder 8, the ball screw assembly 20 is rotatable within the synchronous pulley box 3 via the angular contact bearing 21, a screw end of the ball screw assembly 20 penetrates the angular contact bearing 21, so that the ball screw can stably rotate when driven by a rotational force, a piston 19 is disposed on an outer side thread of the ball screw assembly 20, under the rotation of the ball screw, a piston 19 is subjected to a thread force adapted to the ball screw, a liquid needle bearing 18 is arranged on the outer side of the piston 19, a guide plate 17 matched with the liquid needle bearing 18 and a guide plate mounting plate 16 used for mounting the guide plate are arranged on the inner side of the cylinder 8, the piston 19 is influenced by the thread force and can drive the liquid needle bearing 18 on the outer side to roll on the guide plate 17, a traditional anti-rotation structure adopting sliding friction is replaced, the friction resistance can be reduced, a synchronous component for controlling the operation of the ball screw assembly 20 is arranged in an inner cavity of the synchronous gearbox 3, a driving piece for driving the synchronous component to work is arranged at the bottom of the cylinder 8 on the right side of the bottom plate 6, the synchronous component is controlled by the driving piece to work, the ball screw assembly 20 can be driven to operate, and the piston 19 is limited by the anti-rotation structure, can the horizontal slip, the left side of synchronous box wheel 3 still is provided with the brake disc subassembly, and under the condition of having a power failure or unexpected outage, the brake disc band-type brake makes the load of electric cylinder power shaft 10 and connection can not fall owing to the disability that loses the motor, ensures the safety in production.

Further, the synchronizing assembly comprises a driving synchronizing wheel 11 and a driven synchronizing wheel 14 which are rotatably arranged in the inner cavity of the synchronizing wheel box 3, a synchronous belt 12 is connected between the driving synchronizing wheel 11 and the driven synchronizing wheel 14 in a transmission manner, the driving synchronizing wheel 11 rotates to drive the synchronous belt 12, so that the driven synchronizing wheel 14 rotates, and the ball screw assembly 20 can be driven to run.

Furthermore, the driving piece comprises a speed reducer 2 arranged on the bottom plate 6, a torque servo motor 1 is arranged on the right side of the speed reducer 2, the output end of the speed reducer 2 is connected with a driving synchronizing wheel 11, and high-precision torque output control is realized by adopting the matching of the torque servo motor 1 and the speed reducer 2, so that the electric cylinder has high-precision thrust.

Further, the brake disc subassembly is including installing in the left brake disc mounting panel 4 of synchronizing wheel case 3, the side of brake disc mounting panel 4 is provided with the brake disc 13 of being connected with ball screw subassembly 20, brake disc safety cover 5 is installed in the outside of brake disc 13, and brake disc safety cover 5 is used for strengthening the protection of brake disc 13, avoids receiving the foreign object influence.

Further, the ball screw assembly 20 includes a ball screw and two sets of nuts, the two sets of nuts are located on two sides of the angular contact bearing 21, and the two sets of nuts are screwed outside the ball screw and tightly attached to two sides of the angular contact bearing 21, so that the problem of deviation of the ball screw during long-term rotation can be avoided, and the stability of rotation is enhanced.

Furthermore, a front flange 9 is detachably mounted at the right end of the cylinder barrel 8, a guide bush 15 is arranged in the front flange 9, a power shaft 10 connected with a piston 19 is sleeved on the outer side of the ball screw assembly 20, the front flange 9 and the guide bush 15 are used for guiding the power shaft 10, and when the piston 19 slides, the power shaft 10 is driven to stably output.

In summary, according to the low-resistance safety electric cylinder, the torque servo motor 1 is driven, the speed reducer 2 operates to drive the driving synchronous wheel 11 to rotate, and the synchronous belt 12 drives the driven synchronous wheel 14 to rotate, so that the ball screw assembly 20 can be driven to stably rotate under the support of the angular contact bearing 21, the piston 19 acted by the screw force slides left and right to drive the power shaft 10 to output, the anti-rotation structure adopted by the piston 19 rolls on the guide plate 17 through the hydraulic needle bearing 18 on the outer side of the piston 19 to replace the traditional anti-rotation structure of sliding friction, so that the electric cylinder has low resistance and can stably output high-precision pressure, and the brake disc 13 of the power-off contracting brake mounted at the tail part of the screw rod can contract the brake disc under the condition of power failure or unexpected power failure, so that the electric cylinder power shaft 10 and connected loads cannot fall due to the energy loss of the motor, and safe production is ensured.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like 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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low resistance safety type electricity jar, includes synchronous wheel case (3) and cylinder (8), its characterized in that: the right flank of synchronous wheel case (3) is provided with bottom plate (6), is located the right side of bottom plate (6) is provided with bearing frame (7) respectively and with bearing frame (7) fixed connection's cylinder (8), be provided with one corner contact bearing (21) in bearing frame (7), the inner chamber of cylinder (8) is provided with and runs through to synchronous wheel case (3) left ball screw subassembly (20), and ball screw subassembly (20) are rotatable in locating synchronous wheel case (3) through angular contact bearing (21), the outside screw thread of ball screw subassembly (20) is provided with piston (19), the outside of piston (19) is provided with liquid needle bearing (18), cylinder (8) inboard is provided with deflector (17) with liquid needle bearing (18) adaptation and is used for guide plate mounting panel (16) of its installation, the inner chamber of synchronous wheel case (3) is provided with the synchronous subassembly of control ball screw subassembly (20) operation, the right side of bottom that is located liquid needle bearing (18) is provided with the driving piece that drives synchronous subassembly work, the left side of synchronous wheel case (3) still is provided with the brake disc subassembly.

2. The low-resistance safety electric cylinder according to claim 1, characterized in that: the synchronous component comprises a driving synchronous wheel (11) and a driven synchronous wheel (14) which are rotatably arranged in an inner cavity of the synchronous wheel box (3), and a synchronous belt (12) is connected between the driving synchronous wheel (11) and the driven synchronous wheel (14) in a transmission mode.

3. The low-resistance safety electric cylinder according to claim 2, characterized in that: the driving piece comprises a speed reducer (2) arranged on a bottom plate (6), a torque servo motor (1) is arranged on the right side of the speed reducer (2), and the output end of the speed reducer (2) is connected with a driving synchronizing wheel (11).

4. The low-resistance safety electric cylinder according to claim 1, characterized in that: the brake disc subassembly is including installing in left brake disc mounting panel (4) of synchronizing wheel case (3), the side of brake disc mounting panel (4) is provided with brake disc (13) of being connected with ball screw subassembly (20), brake disc safety cover (5) are installed in the outside of brake disc (13).

5. The low-resistance safety electric cylinder according to claim 4, characterized in that: the ball screw assembly (20) comprises a ball screw and two sets of nuts, and the two sets of nuts are positioned on two sides of the angular contact bearing (21).

6. The low-resistance safety electric cylinder according to claim 1, characterized in that: the right end of the cylinder barrel (8) is detachably provided with a front flange (9), a guide bushing (15) is arranged in the front flange (9), and a power shaft (10) connected with a piston (19) is sleeved on the outer side of the ball screw assembly (20).