Manual-automatic integrated push rod electric cylinder

Abstract

The utility model relates to a manual-automatic integrated push rod electric cylinder which comprises a driving system, a hand wheel, a gearbox, a rear cover, a lead screw pair, a displacement sensor, a push rod, a linear guide rail pair and a cylinder body. The driving system comprises a motor end cover and a motor body; the gear box and the motor end cover are integrally arranged, the displacement sensor is integrated on the cylinder body, the rear cover is fixed on the motor end cover, a motor output shaft of the motor body, the gear box and the lead screw pair are sequentially in transmission connection, the push rod is respectively connected with the lead screw pair and the linear guide rail pair, and the hand wheel is connected with the motor output shaft. Compared with the prior art, the utility model has the advantages of small size, large thrust, high precision and the like.

Description

Technical Field

[0001] This utility model relates to an electric cylinder, and more particularly to a manual / automatic push rod electric cylinder. Background Technology

[0002] Electric cylinders can convert the rotary motion output by a motor into linear motion and are widely used in industrial and automated equipment. With the continuous development of automation, there is an increasing demand for highly integrated electric cylinders that can achieve small size, high precision, and high thrust, especially in the lithium battery coating industry. In the coating die head, many micrometer-like devices are often installed side by side. The uniformity of coating is improved by manually adjusting the gap on the die head. The coating quality mainly depends on the density of the micrometers installed side by side and the adjustment accuracy of the micrometers. At the same time, the micrometers need to be self-locking after adjustment to resist the pressure inside the die head cavity.

[0003] Existing manual micrometer adjustment devices have many shortcomings:

[0004] 1) Due to the influence of human factors, the adjustment error is relatively large, and it is easy to make the adjustment insufficient or excessive, resulting in uneven coating thickness and poor coating quality.

[0005] 2) Manual operation and adjustment lead to low adjustment efficiency and long time consumption.

[0006] 3) Unable to achieve automated and intelligent remote control.

[0007] 4) Repeated manual adjustments will generate a lot of waste, resulting in low slurry utilization and poor economic efficiency.

[0008] Therefore, how to develop a small-sized, high-thrust, and high-precision electric device to replace the manual micrometer has become a technical problem that needs to be solved. Utility Model Content

[0009] The purpose of this utility model is to overcome the defects of the existing technology and provide a small-sized, high-thrust, and high-precision manual / automatic push rod electric cylinder.

[0010] The objective of this utility model can be achieved through the following technical solutions:

[0011] According to one aspect of the present invention, a manual / automatic integrated push rod electric cylinder is provided, the electric cylinder comprising a drive system, a handwheel, a gearbox, a rear cover, a lead screw pair, a displacement sensor, a push rod, a linear guide pair, and a cylinder body; the drive system comprises a motor end cover and a motor body;

[0012] The gearbox and motor end cover are integrally formed, the displacement sensor is integrated on the cylinder body, the rear cover is fixed on the motor end cover, the motor output shaft, gearbox, and lead screw pair of the motor body are sequentially connected for transmission, the push rod is connected to the lead screw pair and the linear guide pair respectively, and the handwheel is connected to the motor output shaft.

[0013] As a preferred technical solution, the drive system also includes a driver, an aviation plug, and a communication interface, which are respectively connected to the motor body.

[0014] As a preferred technical solution, the gearbox includes an input gear, a transition gear, and an output gear that mesh sequentially. A transition shaft is provided on the motor end cover. The input gear is connected to the motor output shaft, the transition gear is connected to the transition shaft, and the output gear is connected to the lead screw pair.

[0015] As a preferred technical solution, the electric cylinder further includes a thrust bearing, a deep groove ball bearing, and a lock nut, wherein the thrust bearing, output gear, deep groove ball bearing, and lock nut are located in the axial direction of the lead screw pair.

[0016] As a preferred technical solution, the thrust bearing is fixed in the upper and lower bearing chambers of the motor end cover, and the locking nut fixes the lead screw pair, thrust bearing, output gear, and deep groove ball bearing to the motor end cover.

[0017] As a preferred technical solution, the handwheel is provided with a scale.

[0018] As a preferred technical solution, the cylinder body is fixed on the motor end cover, the linear guide rail is located on one side of the cylinder body, the displacement sensor is located on the other side of the cylinder body, and the cylinder body is provided with a wiring groove.

[0019] As a preferred technical solution, the electric cylinder further includes a front flange fixed to the cylinder body, on which a composite bearing is provided. The driver and displacement sensor are provided with communication interfaces, and the communication interfaces of the two are connected by a wiring harness.

[0020] As a preferred technical solution, the push rod is provided with a magnetic strip, and the displacement sensor detects the position error of the push rod by sensing the magnetic strip and feeds it back to the driver.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1) This utility model has a small size, integrates the drive motor and gearbox, and integrates the displacement sensor and cylinder body, which greatly reduces the volume of the entire electric cylinder.

[0023] 2) This utility model has a large thrust. The output torque of the motor is increased by the gearbox, which further enhances the thrust of the electric cylinder.

[0024] 3) This utility model has high precision. The displacement sensor detects the position error of the push rod through the sensing magnetic strip and feeds it back to the driver. The driver readjusts the position of the push rod, which effectively reduces the error between the actual position and the commanded position of the push rod and improves the control precision of the electric cylinder.

[0025] 4) This utility model has good rigidity. The lead screw that transmits torque is equipped with a thrust bearing and a deep groove ball bearing to ensure axial and radial stability at the same time. The linear guide pair also enhances the overall stability.

[0026] 5) This utility model has a manual and automatic integrated adjustment. When the motor is working normally, the push rod can be adjusted electrically. When the motor fails, the push rod position can be adjusted by rotating the handwheel. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the external structure of the electric cylinder of this utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the electric cylinder of this utility model;

[0029] Figure 3 This is a schematic diagram of the drive system structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the displacement sensor interface of this utility model.

[0031] 1 is the drive system, 2 is the handwheel, 3 is the input gear, 4 is the transition gear, 5 is the transition shaft, 6 is the lock nut, 7 is the deep groove ball bearing, 8 is the rear cover, 9 is the output gear, 10 is the thrust bearing, 11 is the lead screw pair, 12 is the displacement sensor, 13 is the magnetic strip, 14 is the push rod, 15 is the front flange, 16 is the composite bearing, 17 is the linear guide pair, and 18 is the cylinder block.

[0032] 1a is the driver, 1b is the aviation connector, 1c is the motor output shaft, 1d is the motor end cover, 1e is the motor body, 1f is the communication interface, and 13a is the displacement sensor interface. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0034] like Figure 1 and Figure 2As shown, a manual / automatic integrated push rod electric cylinder includes a drive system 1, a handwheel 2, a gearbox, a rear cover 8, a lead screw pair 11, a displacement sensor 12, a push rod 14, a linear guide pair 17, and a cylinder body 18. The drive system 1 includes a motor end cover 1d and a motor body 1e. The gearbox is integrally formed with the motor end cover 1d, the displacement sensor 12 is integrated into the cylinder body 18, the rear cover 8 is fixed to the motor end cover 1d, the motor output shaft 1c of the motor body 1e, the gearbox, and the lead screw pair 11 are sequentially connected for transmission, the push rod 14 is connected to both the lead screw pair 11 and the linear guide pair 17, and the handwheel 2 is connected to the motor output shaft 1c. This invention integrates the drive motor and gearbox, and the displacement sensor and cylinder body, greatly reducing the overall size of the electric cylinder.

[0035] like Figure 3 As shown, the drive system 1 also includes a driver 1a, an aviation plug 1b, and a communication interface 1f, which are respectively connected to the motor body 1e.

[0036] like Figure 2 As shown, the gearbox includes an input gear 3, a transition gear 4, and an output gear 9 that mesh sequentially. A transition shaft 5 is provided on the motor end cover 1d. The input gear 3 is connected to the motor output shaft 1c, the transition gear 4 is connected to the transition shaft 5, and the output gear 9 is connected to the lead screw pair 11. The motor end cover and gearbox in the drive system are integrated. The motor end cover is provided with the motor output shaft, transition shaft, and lead screw pair. The input gear, transition gear, and output gear are fixed to the motor output shaft, transition shaft, and lead screw, respectively. Simultaneously, the input gear meshes with the transition gear, and the transition gear meshes with the output gear, thereby achieving motion transmission.

[0037] like Figure 2 As shown, the electric cylinder also includes a thrust bearing 10, a deep groove ball bearing 7, and a locking nut 6. The thrust bearing 10, the output gear 9, the deep groove ball bearing 7, and the locking nut 6 are located in the axial direction of the lead screw pair 11. The lead screw that transmits torque is equipped with a thrust bearing and a deep groove ball bearing, which simultaneously ensures axial and radial stability. At the same time, the linear guide pair also enhances the overall stability.

[0038] like Figure 2 As shown, the thrust bearing 10 is fixed in the upper and lower bearing chambers of the motor end cover 1d, and the locking nut 6 fixes the lead screw pair 11, the thrust bearing 10, the output gear 9, and the deep groove ball bearing 7 on the motor end cover 1d.

[0039] The handwheel 2 is fixed on the motor output shaft and is equipped with a scale. The handwheel can be used for both manual and automatic adjustment. When the motor is working normally, the push rod can be adjusted electrically. When the motor fails, the handwheel can be rotated to adjust the position of the push rod.

[0040] The cylinder body 18 is fixed on the motor end cover 1d, the linear guide pair 17 is located on one side inside the cylinder body 18, the displacement sensor 12 is located on the other side inside the cylinder body 18, and the cylinder body 18 is provided with a wiring groove.

[0041] The electric cylinder also includes a front flange 15 fixed to the cylinder body 18, and a composite bearing 16 is provided on the front flange 15, such as... Figure 4 As shown, the driver 1a and the displacement sensor 12 are provided with communication interfaces, and the two communication interfaces are connected by a wire harness.

[0042] The push rod 14 is equipped with a magnetic strip 13. The displacement sensor 12 detects the position error of the push rod 14 by sensing the magnetic strip 13 and feeds it back to the driver 1a. The driver readjusts the position of the push rod, which effectively reduces the error between the actual position and the commanded position of the push rod and improves the control accuracy of the electric cylinder.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A push rod electric cylinder of a manual and automatic hybrid type, characterized by, The electric cylinder comprises a driving system (1), a hand wheel (2), a gear box, a rear cover (8), a screw rod pair (11), a displacement sensor (12), a push rod (14), a linear guide rail pair (17) and a cylinder body (18); the driving system (1) comprises a motor end cover (1d) and a motor body (1e); The gear box is integrally arranged with the motor end cover (1d), the displacement sensor (12) is integrated on the cylinder body (18), the rear cover (8) is fixed on the motor end cover (1d), the motor shaft (1c) of the motor body (1e), the gear box, the screw rod pair (11) are sequentially connected in transmission, the push rod (14) is connected with the screw rod pair (11) and the linear guide rail pair (17) respectively, and the hand wheel (2) is connected with the motor shaft (1c).

2. The electro-cylinder according to claim 1, wherein, The driving system (1) further comprises a driver (1a), an aviation plug (1b) and a communication interface (1f) which are connected with the motor body (1e) respectively.

3. The electro-cylinder according to claim 1, wherein, The gear box comprises an input gear (3), a transition gear (4) and an output gear (9) which are sequentially meshed, the motor end cover (1d) is provided with a transition shaft (5), the input gear (3) is connected with the motor shaft (1c), the transition gear (4) is connected with the transition shaft (5), and the output gear (9) is connected with the screw rod pair (11).

4. The servo-electric push rod cylinder of claim 3, wherein, The electric cylinder further comprises a thrust bearing (10), a deep groove ball bearing (7) and a locking nut (6), and the thrust bearing (10), the output gear (9), the deep groove ball bearing (7) and the locking nut (6) are arranged in the axial direction of the screw rod pair (11).

5. The servo-electric push rod cylinder of claim 4, wherein, The thrust bearing (10) is fixed in the upper and lower bearing chambers of the motor end cover (1d), and the locking nut (6) fixes the screw rod pair (11), the thrust bearing (10), the output gear (9) and the deep groove ball bearing (7) on the motor end cover (1d).

6. The servo-electric push rod cylinder of claim 1, wherein, A scale is arranged on the hand wheel (2).

7. The servo-electric push rod cylinder of claim 1, wherein, The cylinder body (18) is fixed on the motor end cover (1d), the linear guide rail pair (17) is arranged on one side in the cylinder body (18), the displacement sensor (12) is arranged on the other side in the cylinder body (18), and a wire groove is arranged on the cylinder body (18).

8. The servo-electric push rod cylinder of claim 2, wherein, The electric cylinder further comprises a front flange (15) fixed on the cylinder body (18), a composite bearing (16) is arranged on the front flange (15), the driver (1a) and the displacement sensor (12) are provided with communication interfaces, and the communication interfaces are connected through a wire harness.

9. The servo-electric push rod cylinder of claim 2, wherein, A magnetic strip (13) is arranged on the push rod (14), the displacement sensor (12) detects the position error of the push rod (14) by inducting the magnetic strip (13) and feeds back to the driver (1a).

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