A driver

Abstract

This utility model discloses a driver, belonging to the technical field of drive equipment, comprising a housing, a sleeve, and a fixing bar. The housing has a mounting cavity; a moving channel communicating with the mounting cavity is formed inside the sleeve; the sleeve is connected to the housing; at least part of the fixing bar is disposed in the moving channel, extends into the mounting cavity, and is connected to the surface of the mounting cavity. This driver, through the coordinated operation of its various structures, reduces the adverse effects of accumulated dimensional tolerances in the sleeve and fixing bar on the equipment's stroke control, thereby improving the overall control accuracy and reliability of the driver.

Description

Technical Field

[0001] This utility model relates to the field of drive equipment technology, and in particular to a driver. Background Technology

[0002] As a key component for realizing mechanical motion control, the actuator is widely used to drive the actuator to complete linear movement, rotation or specific trajectory movement, so as to meet the equipment's needs for precise positioning, force or speed control.

[0003] Currently, existing actuators typically include a sleeve, a fixing bar installed inside the sleeve, and a drive structure for driving the push rod. The fixing bar is used for auxiliary positioning and to cooperate with microswitches to achieve stroke control. Its installation method inside the sleeve is mostly to limit and fix it through both ends of the sleeve to ensure that the fixing bar does not shift during the operation of the actuator, thereby ensuring the stability of the cooperation between the transmission structure and the fixing bar, so as to realize the normal extension and retraction movement of the push rod.

[0004] However, because the fixing strip is located inside the sleeve, and the sleeve itself has certain dimensional tolerances during processing, and the fixing strip itself also has corresponding dimensional tolerances during processing, the tolerances of the sleeve and the fixing strip will have a cumulative effect during actual assembly. The structural design of the fixing strip limiting the sleeve at both ends makes this tolerance accumulation directly affect the stroke control process of the push rod. As a result, the deviation between the maximum stroke and the minimum stroke of the push rod exceeds the expected range during actual operation, which cannot meet the application scenarios with high stroke accuracy requirements, and thus affects the control accuracy and reliability of the entire equipment. Utility Model Content

[0005] The purpose of this invention is to provide a driver to solve the technical problem of poor control accuracy of existing drivers.

[0006] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0007] A driver, comprising:

[0008] The housing has a mounting cavity;

[0009] The sleeve has an internally formed movable channel communicating with the mounting cavity; the sleeve is connected to the housing.

[0010] A fixing strip, at least a portion of which is disposed in the moving channel, extends into the mounting cavity, and is connected to the surface of the mounting cavity.

[0011] Preferably, a fixing member is provided on the surface of the mounting cavity, and a fixing hole is provided on the fixing strip, into which the fixing member is inserted.

[0012] Preferably, the surface of the mounting cavity protrudes outward to form the fixing member.

[0013] Preferably, the surface of the mounting cavity protrudes outward to form a reinforcing protrusion, which is arranged around the periphery of the fastener.

[0014] Preferably, the surface of the fastener forms a limiting plane, and the inner wall of the fixing hole forms a mounting plane. When the fastener is inserted into the fixing hole, the limiting plane is in close contact with the mounting plane.

[0015] Preferably, the fixing hole extends to the outer wall surface of the fixing strip.

[0016] Preferably, the surface of the mounting cavity is provided with a mounting position, and the fastener is detachably mounted on the mounting position.

[0017] Preferably, a limiting member is provided on the surface of the mounting cavity, and when the fixing member is inserted into the fixing hole, the limiting member abuts against the fixing strip.

[0018] Preferably, the surface of the fastener is provided with a guide surface.

[0019] Preferably, the fastener is provided with an anti-detachment component.

[0020] The beneficial effects of this utility model are:

[0021] The actuator proposed in this invention provides mounting space for each component through the mounting cavity of the housing. The moving channel inside the sleeve communicates with the mounting cavity, facilitating the connection and operation between components. A fixing strip extends into the mounting cavity from the moving channel and connects to the surface of the mounting cavity. This connection method changes the traditional form where the fixing strip is only fixed at both ends of the sleeve, effectively isolating the manufacturing tolerances of the sleeve itself from the mounting system of the fixing strip. The fixing strip no longer needs to rely on the dimensional accuracy of the sleeve for positioning. Since the fixing strip is directly fixed to the rigid surface of the mounting cavity, its own tolerances will not have a cumulative effect with the sleeve tolerances, thereby improving the positional accuracy of the fixing strip in the direction of movement and enhancing the control accuracy and operational reliability of the actuator. In particular, if a slight displacement of the fixing strip's position occurs after long-term use, the user does not need to disassemble the entire actuator; they can simply open the housing to directly observe the connection status of the fixing strip through the mounting cavity and intuitively adjust and re-fix it from inside the housing, improving the control accuracy, operational reliability, and long-term maintenance convenience of the actuator. Attached Figure Description

[0022] Figure 1 This is an exploded structural diagram of the driver provided in Embodiment 1 of this utility model;

[0023] Figure 2 This is a schematic diagram of the driver provided in Embodiment 1 of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the housing and the fixing strip provided in Embodiment 1 of this utility model;

[0025] Figure 4 This is an exploded structural diagram of the shell and fixing strip provided in Embodiment 1 of this utility model;

[0026] Figure 5 This is a schematic diagram of the first structure of the shell and the fixing strip provided in Embodiment 2 of this utility model;

[0027] Figure 6 This is a first exploded structural diagram of the shell and fixing strip provided in Embodiment 2 of this utility model;

[0028] Figure 7 This is a schematic diagram of the second structure of the housing and the fixing strip provided in Embodiment 2 of this utility model;

[0029] Figure 8 This is a second exploded structural diagram of the shell and fixing strip provided in Embodiment 2 of this utility model;

[0030] Figure 9 This is a schematic diagram of the structure of the housing and the fixing strip provided in Embodiment 3 of this utility model;

[0031] Figure 10 This is an exploded structural diagram of the shell and fixing strip provided in Embodiment 3 of this utility model.

[0032] In the picture:

[0033] 1. Housing; 11. Mounting cavity; 12. Reinforcing protrusion; 13. Mounting position; 14. Limiting component;

[0034] 2. Sleeve; 21. Moving channel;

[0035] 3. Fixing strip; 31. Fixing hole; 311. Mounting surface;

[0036] 4. Fixing component; 41. Limiting plane; 42. Guiding surface; 43. Anti-detachment component; 44. Auxiliary washer. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] See Figures 1 to 4 The driver provided in this embodiment of the utility model includes a housing 1, a sleeve 2, and a fixing strip 3. The housing 1 has a mounting cavity 11; the sleeve 2 has a moving channel 21 that communicates with the mounting cavity 11; the sleeve 2 is connected to the housing 1; at least part of the fixing strip 3 is disposed in the moving channel 21, extends into the mounting cavity 11, and is connected to the surface of the mounting cavity 11.

[0043] The actuator proposed in this invention provides mounting space for each component through the mounting cavity 11 of the housing 1. The moving channel 21 inside the sleeve 2 communicates with the mounting cavity 11, facilitating the connection and operation between components. The fixing strip 3 extends into the mounting cavity 11 from the moving channel 21 and connects to the surface of the mounting cavity 11. This connection method changes the traditional form where the fixing strip 3 is only fixed at both ends of the sleeve 2, effectively isolating the manufacturing tolerance of the sleeve 2 from the mounting system of the fixing strip 3. The fixing strip 3 no longer needs to rely on the dimensional accuracy of the sleeve 2 for positioning. Since the fixing strip 3 is directly fixed to the rigid surface of the mounting cavity 11, its own tolerance will not have a superposition effect with the tolerance of the sleeve 2, thereby improving the positional accuracy of the fixing strip 3 in the direction of movement and improving the control accuracy and operational reliability of the actuator. In particular, if a slight displacement of the fixing strip 3 occurs after long-term use, the user does not need to disassemble the entire actuator. They can simply open the housing 1 to directly observe the connection status of the fixing strip 3 through the mounting cavity 11 and intuitively adjust and re-fix it inside the housing 1, improving the control accuracy, operational reliability, and long-term maintenance convenience of the actuator.

[0044] The specific structure and working principle of this driver will be described in detail below.

[0045] The housing 1 has an internal mounting cavity 11 for mounting and fixing various components. The sleeve 2 is connected to the housing 1, and the sleeve 2 has an internal moving channel 21 that communicates with the mounting cavity 11, so that the components in the mounting cavity 11 can be directly connected and the components in the moving channel 21 can be controlled. At least part of the fixing strip 3 is provided in the moving channel 21 and extends into the mounting cavity 11, and is connected to the surface of the mounting cavity 11.

[0046] Specifically, a fastener 4 is provided on the surface of the mounting cavity 11, and a fixing hole 31 is provided on the fixing strip 3. The fastener 4 is inserted into the fixing hole 31, so that the fixing strip 3 can be quickly fixed in the mounting cavity 11. Furthermore, when it is necessary to adjust or replace the fixing strip 3, the plug-in connection method is also convenient for disassembly and reinstallation.

[0047] In this embodiment, the surface of the mounting cavity 11 protrudes outward to form a fixing member 4. The fixing member 4 and the mounting cavity 11 form an integral structure, eliminating the need for additional fixing structures, simplifying the production process, reducing production costs, and enhancing the connection strength between the fixing member 4 and the mounting cavity 11.

[0048] Furthermore, the surface of the mounting cavity 11 protrudes outward to form a reinforcing protrusion 12, which is arranged around the periphery of the fastener 4. The reinforcing protrusion 12 can enhance the connection strength between the fastener 4 and the surface of the mounting cavity 11, enabling it to withstand greater forces and improving the stability of the fastener 4.

[0049] Since the fixing strip 3 is sleeved on the fixing member 4 through the fixing hole 31, when the driver is subjected to external force or vibration during use, installation or transportation, the fixing strip 3 may rotate or shake around the fixing member 4, thereby affecting the setting accuracy of the fixing strip 3.

[0050] Therefore, the surface of the fastener 4 forms a limiting plane 41, and the inner wall of the fixing hole 31 forms an installation plane 311. When the fastener 4 is inserted into the fixing hole 31, the limiting plane 41 and the installation plane 311 are in close contact. Thus, when the fastener 4 and the fixing hole 31 are engaged, the contact and limiting between the limiting plane 41 and the installation plane 311 can effectively resist circumferential rotation, enhance the anti-torsion and anti-shaking ability of the fixing strip 3 when subjected to external force, vibration or impact, and ensure the stability of the fixing strip 3 during installation.

[0051] Optionally, the cross-section of the fastener 4 can be set as a non-circular polygonal column structure, such as a rectangle, hexagon, or irregular shape, and the fixing hole 31 can be set to a shape that fits the fastener 4. The limiting plane 41 and the mounting plane 311 can be directly formed by the flat sidewall of its own structure, thereby achieving the circumferential limiting effect of the fixing strip 3.

[0052] Alternatively, the fastener 4 may be cylindrical, but additional protrusions may be formed on the fastener 4 to form a limiting block or limiting key. The limiting block or limiting key may have one or more limiting planes 41. At the same time, the mounting plane 31 is formed on the fixing hole 31 corresponding to the limiting plane 41, and the two can fit together tightly.

[0053] Alternatively, the fastener 4 can be cylindrical, and one or more limiting planes 41 can be formed by cutting the surface of the fastener 4. At the same time, the mounting plane 311 is formed on the fixing hole 31 corresponding to the limiting plane 41, and the two can fit together tightly.

[0054] The specific implementation of the limiting plane 41 and the mounting plane 311 is not limited here. As long as the limiting plane 41 and the mounting plane 311 are in close contact, the fixing strip 3 can be prevented from rotating relative to the fixing member 4.

[0055] In this embodiment, the fixing hole 31 extends through the thickness direction of the fixing strip 3, and the outer periphery of the fixing hole 31 is closed. The fixing hole 31 is sleeved on the fixing member 4 along the axial direction of the fixing member 4. The inner wall of the fixing hole 31 provides the fixing member 4 with the maximum circumferential enclosure and support, so that the contact area between the fixing strip 3 and the fixing member 4 is larger, the connection rigidity and stability are higher, and it can effectively resist torsional loads and bending moments in all directions.

[0056] Preferably, the surface of the fastener 4 is provided with a guide surface 42 so that when the mounting hole 31 is installed, it can be smoothly and quickly fitted onto the fastener 4 under the guidance of the guide surface 42.

[0057] The guide surface 42 can be a guide slope, a guide arc surface, or a guide curved surface, etc. There is no limitation on its specific form. It is only necessary to ensure that it can guide the fixing hole 31 to achieve the sleeve fit with the fixing part 4 during the assembly process of the fixing strip 3 and the fixing part 4.

[0058] To further improve the stability of the installation of the fixing strip 3, a limiting member 14 is provided on the surface of the mounting cavity 11. When the fixing member 4 is inserted into the fixing hole 31, the limiting member 14 abuts against the fixing strip 3, thereby providing additional support and limiting for the fixing strip 3 and preventing the fixing strip 3 from being accidentally displaced or loosened during the operation of the driver.

[0059] Specifically, a slot with one end open is formed in the limiting member 14. The slot extends along the length of the fixing strip 3, and at least part of the fixing strip 3 can be inserted into the slot. The inner wall of the slot abuts against the fixing strip 3, thereby achieving the axial and radial limiting effect of the fixing strip 3.

[0060] In addition, the fixing member 4 is provided with an anti-detachment member 43 to prevent the fixing strip 3 from falling off the fixing member 4 when the driver is in use.

[0061] Specifically, the anti-detachment component 43 is connected to the top of the fixing component 4. When the fixing component 4 is inserted into the fixing hole 31, the anti-detachment component 43 can abut against the top surface of the fixing strip 3, thereby applying radial limiting to the fixing strip 3 and preventing the fixing strip 3 from falling off.

[0062] Understandably, when the outer periphery of the fixing hole 31 is closed, and the fixing hole 31 needs to be fitted onto the fixing member 4 along the axial direction of the fixing member 4, in order to prevent the anti-detachment member 43 from interfering with the installation process of the fixing strip 3, the anti-detachment member 43 is detachably connected to the fixing member 4, such as by a snap-fit ​​connection or a threaded connection. In use, first, the fixing hole 31 is fitted onto the fixing member 4, and then the anti-detachment member 43 is connected to the fixing member 4.

[0063] When the anti-detachment component 43 does not interfere with the installation process of the fixing strip 3, the anti-detachment component 43 can be fixedly connected to the fixing component 4 or detachably connected to the fixing component 4, and no limitation is made here.

[0064] The anti-detachment component 43 can be block-shaped, plate-shaped, or other irregular geometric shapes, and its specific structure and shape are not limited here.

[0065] Example 2

[0066] Figures 5 to 8Embodiment 2 is shown, wherein components that are the same as or corresponding to those in Embodiment 1 are represented by the same reference numerals as those in Embodiment 1. For simplicity, only the differences between Embodiment 2 and Embodiment 1 are described. The difference is that the fixing hole 31 extends to the outer wall surface of the fixing strip 3, thereby forming at least one opening communicating with the outside. The fixing hole 31 can be radially fitted onto the fixing member 4 through the opening. The opening formed by the fixing hole 31 provides radial clearance space for the assembly of the fixing strip 3 and the fixing member 4, making it easier for the fixing strip 3 to be fitted onto the fixing member 4 and improving the ease of installation of the fixing strip 3.

[0067] Example 3

[0068] Figure 9 and Figure 10 Embodiment 3 is shown, wherein the same or corresponding components as in Embodiment 1 are referred to by the same reference numerals as in Embodiment 1. For simplicity, only the differences between Embodiment 3 and Embodiment 1 are described. The difference is that: a mounting position 13 is provided on the surface of the mounting cavity 11, and the fastener 4 is detachably mounted on the mounting position 13. This allows for flexible selection and replacement of different specifications of the fastener 4 according to actual needs during driver production and assembly, providing high adaptability. Furthermore, the detachable design reduces maintenance difficulty and improves maintenance efficiency when maintenance or replacement of the fastener 4 is required.

[0069] The connection between the fastener 4 and the mounting position 13 can be a threaded connection, a screw connection, or a snap-fit ​​connection, etc., and is not limited here. The mounting position 13 can be configured as a mounting hole, a mounting groove, or other structure that can be detachably connected to the fastener 4, and is not limited here.

[0070] Furthermore, an auxiliary washer 44 is provided between the fastener 4 and the mounting position 13. The auxiliary washer 44 can effectively compensate for the fitting gap between the fastener 4 and the mounting position 13, enhance the tightness and stability of the connection, and prevent loosening caused by vibration.

[0071] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A driver, characterized in that, include: The housing (1) has a mounting cavity (11); The sleeve (2) has a movable channel (21) inside that communicates with the mounting cavity (11); the sleeve (2) is connected to the housing (1); A fixing strip (3), at least a portion of which is disposed in the moving channel (21), extends into the mounting cavity (11), and is connected to the surface of the mounting cavity (11).

2. The driver according to claim 1, characterized in that, A fastener (4) is provided on the surface of the mounting cavity (11), and a fastening hole (31) is provided on the fastening strip (3), and the fastener (4) is inserted into the fastening hole (31).

3. The driver according to claim 2, characterized in that, The surface of the mounting cavity (11) protrudes outward to form the fastener (4).

4. The driver according to claim 3, characterized in that, The surface of the mounting cavity (11) protrudes outward to form a reinforcing protrusion (12), which is arranged around the periphery of the fastener (4).

5. The driver according to claim 2, characterized in that, The surface of the fastener (4) forms a limiting plane (41), and the inner wall of the fixing hole (31) forms an installation plane (311). When the fastener (4) is inserted into the fixing hole (31), the limiting plane (41) is in close contact with the installation plane (311).

6. The driver according to claim 2, characterized in that, The fixing hole (31) extends to the outer wall surface of the fixing strip (3).

7. The driver according to claim 2, characterized in that, The mounting cavity (11) has a mounting position (13) on its surface, and the fastener (4) is detachably mounted on the mounting position (13).

8. The driver according to claim 2, characterized in that, A limiting member (14) is provided on the surface of the mounting cavity (11). When the fixing member (4) is inserted into the fixing hole (31), the limiting member (14) abuts against the fixing strip (3).

9. The driver according to claim 2, characterized in that, The surface of the fastener (4) is provided with a guide surface (42).

10. The driver according to claim 2, characterized in that, The fastener (4) is provided with an anti-detachment component (43).

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