Large-torque-resistance transmission device

Abstract

The utility model discloses a large-torque-resistance transmission device which comprises a servo electric cylinder, a push rod, a guide mechanism and a supporting mechanism. The servo electric cylinder comprises a roller screw rod; the push rod is arranged in the guide mechanism, one end of the push rod is connected with the roller screw rod, and the other end of the push rod penetrates through the supporting mechanism; one end of the guide mechanism is connected with the servo electric cylinder, and the other end of the guide mechanism is connected with the supporting mechanism; the servo electric cylinder is used for providing power to enable the roller screw rod to do reciprocating motion, and the roller screw rod drives the push rod to do reciprocating rectilinear motion in the axial direction of the guide mechanism and the supporting mechanism. Movement of the push rod is guided through the guide mechanism, the push rod is supported through the supporting mechanism, the movement direction of the push rod can be controlled more accurately, meanwhile, the device can bear larger loads, and the torque resistance performance of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission equipment, in particular to a high-torque-resistance transmission device. Background Art

[0002] Electric cylinders are modular products that integrate a servo motor and a lead screw. They can convert the rotational motion of a servo motor into linear motion. Therefore, they are widely used in industrial automation production lines, robots, injection molding machines, medical treatment, precision machine tools, chemical packaging and other industries. However, due to structural problems, existing electric cylinders can only provide limited torque resistance and cannot withstand larger loads. Utility Model Content

[0003] The utility model provides a large anti-torque transmission device, which aims to solve the problem that the anti-torque performance provided by the electric cylinder in the prior art is limited and cannot withstand a larger load.

[0004] In the first aspect, the utility model proposes a high-torque transmission device, which includes: a servo electric cylinder, a push rod, a guide mechanism and a support mechanism; the servo electric cylinder includes a roller screw; the push rod is arranged inside the guide mechanism, and one end of the push rod is connected to the roller screw, and the other end of the push rod passes through the support mechanism; one end of the guide mechanism is connected to the servo electric cylinder, and the other end of the guide mechanism is connected to the support mechanism; wherein, the servo electric cylinder is used to provide power to make the roller screw reciprocate, and drive the push rod to perform reciprocating linear motion along the axial direction of the guide mechanism and the support mechanism through the roller screw.

[0005] In one technical solution, the guiding mechanism includes a shell and a guide rail assembly; the two ends of the shell are respectively connected to the servo electric cylinder and the support mechanism, the guide rail assembly is connected to the shell, the push rod is arranged on the guide rail assembly, and the push rod is located inside the shell.

[0006] In one technical solution, the guide rail assembly includes a guide plate, a guide rail and a slider; the guide plate is connected to the bottom of the shell, the guide rail is arranged on the guide plate, the slider is arranged on the guide rail, and the push rod is arranged on the slider.

[0007] In one technical solution, a guide groove is provided on the guide plate, and the guide rail is provided on the guide groove.

[0008] In one technical solution, the shell includes a casing, a side panel and a plurality of pull rods; an opening is provided at the top of the casing, and the side panel is provided on the opening; the guide rail assembly is provided inside the casing; the plurality of pull rods pass through the casing, and one end of the plurality of pull rods is connected to the servo electric cylinder, and the other end of the plurality of pull rods is connected to the support mechanism.

[0009] In one technical solution, the push rod includes a first push rod portion and a second push rod portion; the first push rod portion and the second push rod portion are integrally formed, the first push rod portion is arranged on the slider, and the end of the first push rod portion away from the second push rod portion is connected to the roller screw through a locking nut; the end of the second push rod portion away from the first push rod portion passes through the support mechanism.

[0010] In one technical solution, a mounting groove adapted to the slider is provided at the bottom of the first push rod portion, and the top of the slider is provided in the mounting groove.

[0011] In one technical solution, the support mechanism includes an end cover, a through hole is provided on the end cover, the end cover is connected to the guide mechanism, and the push rod passes through the through hole.

[0012] In one technical solution, the support mechanism further includes a dust ring, and the dust ring is arranged at the joint between the end cover and the guide mechanism.

[0013] In one technical solution, the support mechanism further includes a sealing ring, which is arranged at the fitting position between the end cover and the push rod.

[0014] Compared with the prior art, the high-torque-resistant transmission device provided by the present invention includes a servo electric cylinder, a push rod, a guide mechanism, and a support mechanism; the servo electric cylinder includes a roller screw; the push rod is disposed within the guide mechanism, with one end of the push rod connected to the roller screw and the other end of the push rod extending through the support mechanism; one end of the guide mechanism is connected to the servo electric cylinder, and the other end of the guide mechanism is connected to the support mechanism; wherein the servo electric cylinder is used to provide power to cause the roller screw to reciprocate, and the roller screw drives the push rod to reciprocate linearly along the axial direction of the guide mechanism and the support mechanism. The present invention guides the movement of the push rod through the guide mechanism and supports the push rod through the support mechanism, enabling more precise control of the direction of the push rod's movement while enabling the device to withstand greater loads, greatly improving its torque-resistant performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic structural diagram of a high-torque-resistant transmission device provided in one embodiment of the present utility model;

[0017] Figure 2 A cross-sectional view of a high-torque-resistant transmission device provided in one embodiment of the present invention.

[0018] Among them, the reference numerals in the figures are as follows:

[0019] 1. Servo electric cylinder; 11. Roller screw; 12. Servo motor; 2. Push rod; 21. First push rod part; 210. Mounting slot; 22. Second push rod part; 3. Guide mechanism; 31. Shell; 311. Housing; 3111. First through hole; 3112. Second through hole; 312. Side plate; 313. Pull rod; 32. Guide rail assembly; 321. Guide plate; 322. Guide rail; 323. Slider; 33. Locking nut; 4. Support mechanism; 41. End cover; 411. Through hole; 42. Dust ring; 43. Sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Directional terms used in this disclosure, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and "side," refer only to directions in the accompanying drawings. Therefore, these directional terms are intended to illustrate and facilitate understanding of this disclosure and are not intended to limit this disclosure. Furthermore, in the accompanying drawings, similar or identical structures are denoted by the same reference numerals.

[0022] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0023] It should also be understood that the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0024] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0025] See also Figures 1 to 2 , Figure 1 A schematic structural diagram of a high-torque-resistant transmission device provided in one embodiment of the present utility model; Figure 2 A cross-sectional view of a high-torque-resistant transmission device provided in one embodiment of the present invention.

[0026] The utility model provides a high-torque transmission device, which includes: a servo electric cylinder 1, a push rod 2, a guide mechanism 3 and a support mechanism 4; the servo electric cylinder 1 includes a roller screw 11; the push rod 2 is arranged inside the guide mechanism 3, and one end of the push rod 2 is connected to the roller screw 11, and the other end of the push rod 2 passes through the support mechanism 4; one end of the guide mechanism 3 is connected to the servo electric cylinder 1, and the other end of the guide mechanism 3 is connected to the support mechanism 4; wherein, the servo electric cylinder 1 is used to provide power to make the roller screw 11 reciprocate, and drive the push rod 2 to reciprocate linearly along the axial direction of the guide mechanism 3 and the support mechanism 4 through the roller screw 11.

[0027] In this embodiment, see Figures 1 to 2The high-torque transmission device provided by the present invention comprises a servo electric cylinder 1, a push rod 2, a guide mechanism 3, and a support mechanism 4. The guide mechanism 3 is connected to the servo electric cylinder 1 and the support mechanism 4 at both ends. The push rod 2 is mounted inside the guide mechanism 3, and one end of the push rod 2 is connected to a roller screw 11 in the servo electric cylinder 1 that passes through the guide mechanism 3. The other end of the push rod 2 passes through the guide mechanism 3 and the support mechanism 4, so that the other end of the push rod 2 is exposed outside the support mechanism 4 at the end away from the guide mechanism 3. The central axes of the servo electric cylinder 1, the push rod 2, the guide mechanism 3, and the support mechanism 4 are all collinear. Specifically, the servo electric cylinder 1 employs a roller screw 11, which is connected to a servo motor 12 within the servo electric cylinder 1. The roller screw 11 converts the rotational motion of the servo motor 12 into linear motion. Compared to a ball screw of the same size, the roller screw 11, through its numerous contact lines, significantly improves the load capacity, rigidity, and impact resistance of the servo electric cylinder 1. Furthermore, the roller screw 11 offers excellent performance, long life, low noise, energy efficiency, clean operation, and low maintenance costs. During operation, the servo electric cylinder 1 is powered by the servo motor 12. The rotor of the servo motor 12 rotates, driving the roller screw 11 in reciprocating motion. This reciprocating motion of the roller screw 11 then drives the push rod 2 in reciprocating linear motion along the axial direction of the guide mechanism 3 and the support mechanism 4. The guide mechanism 3 is used to guide the movement of the push rod 2, and the support mechanism 4 is mainly used to support the push rod 2. The support mechanism 4 can also play a certain guiding role in the movement of the push rod 2, so that the direction of the movement of the push rod 2 can be controlled more accurately, making the transmission smooth, accurate and reliable. At the same time, the high torque-resistant transmission device can withstand greater loads and greatly improve its torque-resistant performance.

[0028] In a more specific embodiment, the guiding mechanism 3 includes a shell 31 and a guide rail assembly 32; the two ends of the shell 31 are respectively connected to the servo electric cylinder 1 and the support mechanism 4, the guide rail assembly 32 is connected to the shell 31, the push rod 2 is arranged on the guide rail assembly 32, and the push rod 2 is located in the shell 31.

[0029] In this embodiment, see Figure 1 and Figure 2The two ends of the housing 31 are respectively connected to the servo electric cylinder 1 and the support mechanism 4. The guide rail assembly 32 is installed on the inner bottom of the housing 31, and the push rod 2 is installed on the guide rail assembly 32. The housing 31 protects the guide rail assembly 32 and the push rod 2, so that all the moving transmission components of the high-torque transmission device are installed in a completely sealed housing 31. Dust particles or other contaminants are blocked outside the housing 31 and will not affect the key moving transmission components inside, which can improve their life, accuracy and smoothness. Specifically, the roller screw 11 in the servo electric cylinder 1 passes through the housing 31 and is connected to one end of the push rod 2. The other end of the push rod 2 passes through the housing 31 and the support mechanism 4. The reciprocating motion of the roller screw 11 drives the push rod 2, which in turn causes the push rod 2 to move along the guide rail assembly 32.

[0030] In a more specific embodiment, the guide rail assembly 32 includes a guide plate 321, a guide rail 322 and a slider 323; the guide plate 321 is connected to the bottom of the shell 31, the guide rail 322 is arranged on the guide plate 321, the slider 323 is arranged on the guide rail 322, and the push rod 2 is arranged on the slider 323.

[0031] In this embodiment, see Figure 1 and Figure 2 The guide rail assembly 32 consists of a guide plate 321, a guide rail 322, and a slider 323. The guide rail 322 is mounted on the inner bottom of the housing 31 via the guide plate 321, and the slider 323 is mounted on the guide rail 322 and is movable along the guide rail 322. When the roller screw 11 drives the push rod 2, the push rod 2 drives the slider 323 along the guide rail 322. The guide rail 322 and the slider 323 guide the movement of the push rod 2, accurately controlling the direction of the movement of the push rod 2 and ensuring smooth, accurate, and reliable transmission. Preferably, a slider 323 and guide rail 322 with high torque resistance can be selected to ensure stable performance and ensure that the torque resistance of the high-torque transmission device meets the required torque resistance.

[0032] In a more specific embodiment, a guide groove (not shown) is provided on the guide plate 321 , and the guide rail 322 is provided on the guide groove.

[0033] In this embodiment, see Figure 1 and Figure 2 The guide plate 321 is provided with a guide groove for installing the guide rail 322. The guide rail 322 can be quickly installed on the guide plate 321 through the guide groove, and the operation is simple and convenient, making the installation of the guide rail 322 more stable.

[0034] In a more specific embodiment, the shell 31 includes a casing 311, a side panel 312 and a plurality of pull rods 313; an opening (not shown) is provided at the top of the casing 311, and the side panel 312 is provided on the opening; the guide rail assembly 32 is provided inside the casing 311; the plurality of pull rods 313 pass through the casing 311, and one end of the plurality of pull rods 313 is connected to the servo electric cylinder 1, and the other end of the plurality of pull rods 313 is connected to the support mechanism 4.

[0035] In this embodiment, see Figure 1 and Figure 2 The guide rail assembly 32 is disposed within the housing 311, and the push rod 2 is mounted on the guide rail assembly 32. That is, both the guide rail assembly 32 and the push rod 2 are mounted within the housing 311. An opening is provided at the top of the housing 311, through which the interior of the housing 311 can be easily observed, thereby facilitating the installation of the push rod 2. A side panel 312 is mounted on the opening at the top of the housing 311, and the side panel 312 is detachably connected to the top of the housing 311. When the side panel 312 is connected to the housing 311, the side panel 312 covers the opening at the top of the housing 311. The connection between the side panel 312, the servo electric cylinder 1, and the support mechanism 4 and the housing 311 forms a sealed environment for mounting the guide rail assembly 32 and the push rod 2, thereby providing protection. Furthermore, the side panel 312 can be removed from the top of the housing 311 to expose an opening, which facilitates later cleaning and maintenance of the components inside the housing 311 through the opening. Preferably, the side panel 312 is parallel to the guide plate 321 in the guide rail assembly 32. A plurality of tie rods 313 pass through the housing 311, and the ends of the tie rods 313 are respectively connected to the servo electric cylinder 1 and the support mechanism 4, so that the housing 311 is connected to the servo electric cylinder 1 and the support mechanism 4 through the tie rods 313.

[0036] Further, see Figure 1 and Figure 2In one embodiment, the housing 311 is provided with pull rod holes (not shown) that are compatible with the plurality of pull rods 313, the housing 311 is provided with a first through hole 3111 on one end face close to the support mechanism 4, the housing 311 is provided with a second through hole 3112 on one end face close to the servo electric cylinder 1, and the bottom of the housing 311 is provided with a mounting port (not shown) that is compatible with the guide rail assembly 32 for easy installation. During the specific installation, first, one end of the plurality of pull rods 313 is installed on the servo electric cylinder 1, the housing 311 is used to sleeve the guide rail assembly 32 on the inner side of the housing 311 from top to bottom through the mounting port, and the guide rail assembly 32 is connected to the housing 311 through fasteners (such as screws); then, the pull rod holes on the housing 311 are aligned with the corresponding pull rods 313, so that the housing 311 is sleeved on the pull rods 313; then, the push rod 2 is pushed through the first through hole 3111 on the housing 311 and installed on the guide rail assembly 32, and the push rod 2 is inserted into the guide rail assembly 32. After being installed on the guide rail assembly 32, the push rod 2 is slid along the guide rail assembly 32 toward the servo electric cylinder 1, so that one end of the roller screw 11 in the servo electric cylinder 1 is nested in the push rod 2, and the locking nut 33 between the push rod 2 and the roller screw 11 is locked, thereby completing the connection between the push rod 2 and the roller screw 11; finally, the side plate 312 is installed on the top of the housing 311 through fasteners, and the support mechanism 4 is installed on the housing 311 through the pull rod 313, thereby completing the installation of the high torque resistance transmission device of this embodiment.

[0037] In a more specific embodiment, the push rod 2 includes a first push rod portion 21 and a second push rod portion 22; the first push rod portion 21 and the second push rod portion 22 are integrally formed, the first push rod portion 21 is arranged on the slider 323, and the end of the first push rod portion 21 away from the second push rod portion 22 is connected to the roller screw 11 through a locking nut 33; the end of the second push rod portion 22 away from the first push rod portion 21 passes through the support mechanism 4.

[0038] In this embodiment, see Figure 1 and Figure 2The first push rod portion 21 and the second push rod portion 22 are integrally formed, which is conducive to ensuring processing accuracy, thereby ensuring that the axial directions of the first push rod portion 21 and the second push rod portion 22 are in the same straight line. Specifically, the first push rod portion 21 is used to install the slider 323 and the roller screw 11. The bottom of the first push rod portion 21 is connected to the slider 323, and the end of the first push rod portion 21 away from the second push rod portion 22 is connected to the roller screw 11 through a locking nut 33, wherein the locking nut 33 will lock the first push rod portion 21 and the roller screw 11 only when it is close to the end face of the first push rod portion 21. In addition, the end of the second push rod portion 22 away from the first push rod portion 21 passes through the support mechanism 4, so that when the roller screw 11 drives the first push rod portion 21 to make reciprocating linear motion along the guide rail assembly 32 with the slider 323, the second push rod portion 22 makes reciprocating linear motion along the axial direction of the support mechanism 4.

[0039] In a more specific embodiment, a mounting groove 210 adapted to the sliding block 323 is provided at the bottom of the first push rod portion 21 , and the top of the sliding block 323 is disposed in the mounting groove 210 .

[0040] In this embodiment, see Figure 1 and Figure 2 In order to facilitate the installation of the first push rod part 21 on the slider 323, a mounting groove 210 adapted to the slider 323 is provided at the bottom of the first push rod part 21, and the top of the slider 323 is set in the mounting groove 210. The operation is simple and convenient, making the connection between the first push rod part 21 and the slider 323 more stable, preventing the first push rod part 21 from shaking when performing reciprocating linear motion.

[0041] In a more specific embodiment, the support mechanism 4 includes an end cover 41 , a through hole 411 is provided on the end cover 41 , the end cover 41 is connected to the guide mechanism 3 , and the push rod 2 passes through the through hole 411 .

[0042] In this embodiment, see Figure 1 and Figure 2 The support mechanism 4 includes an end cover 41, which is connected to the guide mechanism 3, and a through hole 411 is provided on the end cover 41. The push rod 2 passes through the through hole 411, so that one end of the push rod 2 is exposed on the side of the end cover 41 away from the guide mechanism 3, thereby supporting the push rod 2 through the end cover 41. At the same time, the through hole 411 can also play a certain guiding role in the movement of the push rod 2.

[0043] In a more specific embodiment, the support mechanism 4 further includes a dust ring 42 , and the dust ring 42 is disposed at the position where the end cover 41 cooperates with the guide mechanism 3 .

[0044] In a more specific embodiment, the support mechanism 4 further includes a sealing ring 43 , and the sealing ring 43 is provided at the joint between the end cover 41 and the push rod 2 .

[0045] In this embodiment, see Figure 1 and Figure 2 The support mechanism 4 also includes a dust ring 42 arranged at the cooperation position of the end cover 41 and the guide mechanism 3, and also includes a sealing ring 43 arranged at the cooperation position of the end cover 41 and the push rod 2. The dust ring 42 and the sealing ring 43 are both beneficial to blocking dust particles or other pollutants outside the guide mechanism 3, thereby protecting the components installed inside the guide mechanism 3.

[0046] The large anti-torque transmission device provided by the present invention guides the movement of the push rod 2 through the guide mechanism 3 and supports the push rod 2 through the support mechanism 4, which can more accurately control the direction of movement of the push rod 2, and at the same time enable the device to withstand greater loads, greatly improving its anti-torque performance.

[0047] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention 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 the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A high torque transmission device, characterized in that: include: Servo electric cylinder, push rod, guide mechanism and support mechanism; The servo electric cylinder includes a roller screw; the push rod is arranged inside the guide mechanism, and one end of the push rod is connected to the roller screw, and the other end of the push rod passes through the support mechanism; one end of the guide mechanism is connected to the servo electric cylinder, and the other end of the guide mechanism is connected to the support mechanism; The servo electric cylinder is used to provide power to make the roller screw reciprocate, and the roller screw drives the push rod to perform reciprocating linear motion along the axial direction of the guide mechanism and the support mechanism.

2. The high torque-resistant transmission device according to claim 1, characterized in that: The guide mechanism includes a housing and a guide rail assembly; The two ends of the shell are respectively connected to the servo electric cylinder and the supporting mechanism, the guide rail assembly is connected to the shell, the push rod is arranged on the guide rail assembly, and the push rod is located in the shell.

3. The high torque-resistant transmission device according to claim 2, characterized in that: The guide rail assembly includes a guide plate, a guide rail and a slider; The guide plate is connected to the bottom of the shell, the guide rail is arranged on the guide plate, the slider is arranged on the guide rail, and the push rod is arranged on the slider.

4. The high torque-resistant transmission device according to claim 3, characterized in that: The guide plate is provided with a guide groove, and the guide rail is provided on the guide groove.

5. The high torque-resistant transmission device according to claim 2, characterized in that: The housing includes a casing, side panels and a plurality of pull rods; An opening is provided at the top of the casing, and the side panel is provided on the opening; the guide rail assembly is provided inside the casing; the plurality of pull rods pass through the casing, and one end of the plurality of pull rods is connected to the servo electric cylinder, and the other end of the plurality of pull rods is connected to the support mechanism.

6. The high torque-resistant transmission device according to claim 3, characterized in that: The push rod includes a first push rod portion and a second push rod portion; the first push rod portion and the second push rod portion are integrally formed, the first push rod portion is arranged on the slider, and the end of the first push rod portion away from the second push rod portion is connected to the roller screw through a locking nut; the end of the second push rod portion away from the first push rod portion passes through the support mechanism.

7. The high torque-resistant transmission device according to claim 6, characterized in that: The bottom of the first push rod portion is provided with a mounting groove adapted to the sliding block, and the top of the sliding block is arranged in the mounting groove.

8. The high torque-resistant transmission device according to claim 1, characterized in that: The support mechanism includes an end cover, a through hole is provided on the end cover, the end cover is connected to the guide mechanism, and the push rod passes through the through hole.

9. The high torque-resistant transmission device according to claim 8, characterized in that: The support mechanism further comprises a dustproof ring, which is arranged at the matching position between the end cover and the guide mechanism.

10. The high torque-resistant transmission device according to claim 8, characterized in that: The support mechanism further includes a sealing ring, which is arranged at the matching position between the end cover and the push rod.

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