Tightening rotation stopping mechanism

Abstract

The utility model relates to the technical field of mounting tools, in particular to a tightening rotation stopping mechanism which comprises a base plate and a clamping device. The clamping device is arranged on the base plate; the substrate is connected to the workpiece shell; the number of the clamping devices is two or more, and the clamping devices clamp the gear from different directions. The clamping device comprises a connecting part and a clamping part; the connecting part is used for being connected with the substrate; the clamping part is used for making contact with the gear and clamping the gear. And the shape of the clamping part is meshed with the tooth surface of a gear to be clamped. And the clamping part is detachably connected with the connecting part.

Description

Technical Field

[0001] The present application relates to the technical field of installation tools, and in particular to a tightening anti-rotation mechanism. Background Art

[0002] With the rapid development of the industrial field, the requirements for the accuracy and efficiency of mechanical assembly are increasing. Especially in the high-precision manufacturing fields such as automobiles, aerospace, and electronic appliances, there are strict requirements for the tightening of fasteners such as bolts and nuts. The tightening stop mechanism is a device specially used to prevent gear offset and shaking during the tightening process. Its core components include a clamping device and a gear. The gear is fixed by the clamping device so that the gear can maintain a stable position during the tightening process, thereby achieving accurate fixation of the shaft end.

[0003] However, the existing tightening and anti-rotation mechanism technology still has some problems and needs to be further improved and perfected.

[0004] First, when the clamping device of the existing tightening and anti-rotation mechanism is clamping the gear, the clamping force may be unstable due to the insufficient design or manufacturing precision of the transmission mechanism. Too much clamping force may cause damage to the gear, while too little clamping force cannot effectively fix the gear, causing it to deviate and shake during the tightening process. This instability of the clamping force seriously affects the reliability and stability of the tightening and anti-rotation mechanism.

[0005] Secondly, the matching accuracy between the gear and the shaft is crucial to the performance of the tightening anti-rotation mechanism. However, in the prior art, the matching accuracy between the gear and the shaft is often affected by factors such as manufacturing process and materials, resulting in excessive or insufficient matching clearance. Excessive matching clearance may cause the gear to shake during tightening, while excessive matching clearance may increase assembly difficulty and cost.

[0006] In addition, the existing tightening and anti-rotation mechanisms often require manual adjustment of the positions of the clamping device and the gear during operation, which is complicated and inefficient. This not only increases the labor intensity of the operator, but also may cause unstable assembly accuracy due to human factors. In addition, some mechanisms also require the use of special tools or equipment for operation, further increasing the complexity and cost of the operation.

[0007] Finally, due to the different working environments and load conditions, the tightening anti-rotation mechanism needs to have high durability and reliability. However, in the prior art, some mechanisms are prone to malfunction or failure when used for a long time or under heavy loads, affecting the stability and efficiency of the entire assembly process. Utility Model Content

[0008] The purpose of the present application is to provide a tightening anti-rotation mechanism to solve at least one technical problem existing in the prior art.

[0009] In order to solve the above technical problems, the present application provides a tightening and anti-rotation mechanism, including a base plate and a clamping device;

[0010] The clamping device is arranged on the substrate;

[0011] The substrate is connected to the workpiece housing;

[0012] The clamping devices are provided with two or more, and clamp the gear from different directions respectively.

[0013] Further, the clamping device includes a connecting portion and a clamping portion;

[0014] The connecting portion is used to connect with the substrate;

[0015] The clamping portion is used to contact with the gear and clamp the gear.

[0016] Furthermore, the shape of the clamping portion meshes with the tooth surface of the gear to be clamped.

[0017] Furthermore, the clamping portion is detachably connected to the connecting portion.

[0018] Furthermore, the clamping portion includes an integrated tooth body and a connecting handle;

[0019] The connecting portion is provided with a receiving groove for receiving the connecting handle;

[0020] After the connecting handle enters the receiving groove, the receiving groove and the connecting handle are both provided with positioning holes at corresponding positions;

[0021] The fastener fixes the clamping portion and the connecting portion through the positioning hole.

[0022] Furthermore, a fixing portion is provided on the substrate;

[0023] The fixing portion is provided with a guide and limit structure matching the shape of the clamping device, and is used for guiding and limiting the movement of the clamping device towards or away from the gear.

[0024] Furthermore, the guide and limiting structure is a slide rail, and the clamping device is a slider that cooperates with the slide rail.

[0025] Furthermore, the fixing portion is also provided with an advance and retreat rod;

[0026] One end of the advance and retreat rod is arranged on the fixing part through penetration, and the other end is arranged on the clamping device.

[0027] Furthermore, one end of the advance and retreat rod that passes through the fixing portion is a threaded structure.

[0028] Preferably, two of the advance and retreat rods are provided, and the two advance and retreat rods are arranged in parallel.

[0029] Furthermore, it also includes a limiting portion;

[0030] The limiting portion is arranged on the adjacent clamping device and comprises a bolt and an elastic member;

[0031] Both ends of the elastic member are sleeved on the bolt;

[0032] The bolt is arranged on the top of the clamping device.

[0033] Furthermore, the natural length of the elastic member is smaller than the distance between the bolts, and the elastic member is in a stretched state when mounted on the bolts.

[0034] Furthermore, three clamping devices are provided on the substrate;

[0035] The three clamping devices form an angle of 120 degrees.

[0036] By adopting the above technical solution, the present application has the following beneficial effects:

[0037] (1) By setting up multiple clamping devices to clamp the gears from different directions, the fixing stability and anti-rotation effect of the gears are effectively improved. Especially in high torque or vibration environments, the loosening or displacement of the gears can be significantly reduced, ensuring the normal operation of the equipment.

[0038] (2) The shape of the clamping part meshes with the gear tooth surface, achieving precise clamping of the gear, enhancing the reliability of clamping, and avoiding damage to the gear. In addition, the detachable design of the clamping part and the connecting part makes the mechanism more convenient when repairing or replacing parts, reducing maintenance costs.

[0039] (3) The fixing part and the guide and limit structure on the base plate provide stable guidance and limit for the clamping device, ensuring the accuracy and stability of the clamping device during movement and further improving the anti-rotation effect.

[0040] (4) The setting of the limit part limits the gear in the longitudinal direction through the combination of bolts and elastic parts, which enhances the stability of the mechanism. At the same time, the elastic part works in a stretched state, which helps to maintain the stability of the clamping force and prevent the clamping force from being weakened due to vibration or impact.

[0041] (5) Three clamping devices with an angle of 120 degrees are set on the base plate, which not only realizes the uniform clamping of the gear, but also improves the stability of the entire mechanism, making the anti-rotation effect more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 A schematic diagram of the three-dimensional structure of the tightening anti-rotation mechanism provided in an embodiment of the present application;

[0044] Figure 2 It is a schematic diagram of the three-dimensional structure of the workpiece shell;

[0045] Figure 3 This is the disassembly diagram for tightening the anti-rotation mechanism;

[0046] Figure 4 for Figure 1 A top view of

[0047] Figure 5 It is a top view schematic diagram of three clamping devices clamping gears;

[0048] Figure 6 It is a top view schematic diagram of the use scenario of the limit part;

[0049] Figure 7 A side view of the substrate.

[0050] Reference numerals:

[0051] 1-base plate; 2-clamping device; 3-workpiece housing; 4-gear; 5-connecting part; 6-clamping part; 7-tooth body; 8-connecting handle; 9-accommodating groove; 10-positioning hole; 11-fixing part; 12-guide limiting structure; 13-advance and retreat rod; 14-bolt; 15-elastic member; 16-positioning pin. DETAILED DESCRIPTION

[0052] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0053] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0054] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] The present application is further explained below in conjunction with specific implementation methods.

[0056] like Figure 1-7 As shown, a tightening and anti-rotation mechanism provided in this embodiment includes a base plate 1 and a clamping device 2; the clamping device 2 is arranged on the base plate 1; the clamping device 2 is provided with two or more, clamping the gear 4 from different directions respectively.

[0057] When the tightening and anti-rotation mechanism of the present application is working, the substrate 1 and the workpiece housing 3 need to be connected by fasteners first, and then the gear 4 is clamped from different directions using the clamping device 2. This embodiment shows that the gear 4 is clamped from two directions. In addition, the substrate 1 can also be annular, and three clamping devices 2 are arranged on it. The three clamping devices 2 are at an angle of 120 degrees, which can provide a more stable clamping of the gear 4.

[0058] like Figure 3The figure shows a further implementation scheme of the present application, wherein the clamping device 2 includes a connecting portion 5 and a clamping portion 6; the connecting portion 5 is used to connect to the substrate 1; the clamping portion 6 is used to contact the gear 4 and clamp the gear 4. The shape of the clamping portion 6 meshes with the tooth surface of the gear 4 to be clamped. The clamping portion 6 is detachably connected to the connecting portion 5. The clamping portion 6 includes an integrated tooth body 7 and a connecting handle 8; the connecting portion 5 is provided with a receiving groove 9 for accommodating the connecting handle 8; after the connecting handle 8 enters the receiving groove 9, the receiving groove 9 and the connecting handle 8 are provided with positioning holes 10 at the corresponding positions (wherein the positioning holes 10 on the connecting handle 8 are not shown in the figure); the fastener fixes the clamping portion 6 to the connecting portion 5 through the positioning holes 10.

[0059] When the tightening and anti-rotation mechanism of the present application is working, the shape of the clamping part 6 meshes with the tooth surface of the gear 4, thereby achieving accurate clamping of the gear 4, enhancing the reliability of the clamping, and avoiding damage to the gear 4. However, since the models of the gear 4 may be different, when the models of the gear 4 are different, it is necessary to replace different clamping parts 6 so that their shapes mesh with the tooth surfaces of the gear 4, thereby improving the adaptability of the device. In addition, the clamping part 6 in the present device is an integrated tooth body 7 and a connecting handle 8, and the connecting handle 8 is connected to the connecting part 5 through a plug-in structure, and is fixed to the connection through a fastener after insertion, so that the connection is tight and firm and not easy to loosen.

[0060] like Figure 3 The figure shows a further implementation scheme of the present application, in which a fixing portion 11 is provided on the substrate 1; a guide and limiting structure 12 matching the shape of the clamping device 2 is provided on the fixing portion 11, and is used to guide and limit the movement of the clamping device 2 close to or away from the gear 4. The guide and limiting structure 12 is a slide rail, and the clamping device 2 is a slider that cooperates with the slide rail. An advance and retreat rod 13 is also provided on the fixing portion 11; one end of the advance and retreat rod 13 is provided on the fixing portion 11, and the other end is provided on the clamping device 2. One end of the advance and retreat rod 13 that is provided on the fixing portion 11 is a threaded structure. The advance and retreat rod 13 is preferably provided in two, and the two advance and retreat rods 13 are arranged in parallel.

[0061] When the tightening and anti-rotation mechanism of the present application is working, the clamping device 2 moves in the axial direction, thereby approaching or moving away from the gear 4. In order to make the movement path of the clamping device 2 more stable, the present embodiment provides a guide rail as a guide limit structure 12. In addition, the present application also provides an advance and retreat rod 13 on the fixed portion 11, and the advance and retreat rod 13 is a threaded structure that penetrates one end of the fixed portion 11. When it is necessary to control the forward and backward movement of the clamping device 2, it is only necessary to screw the threaded structure. And when the front end of the clamping device 2 is in contact and meshed with the gear 4, the threaded structure can also prevent the clamping device 2 from moving backward, thereby playing a positioning role for the clamping device 2.

[0062] like Figure 6 The figure shows a further embodiment of the present application, further comprising a limiting part; the limiting part is arranged on the adjacent clamping device 2, comprising a bolt 14 and an elastic member 15; both ends of the elastic member 15 are sleeved on the bolt 14; the bolt 14 is arranged on the top of the clamping device 2. The natural length of the elastic member 15 is smaller than the distance between the bolts 14, and when it is installed on the bolt 14, it is in a stretched state.

[0063] When the tightening and anti-rotation mechanism of the present application is working, although the clamping device 2 clamps the gear 4 on the horizontal plane, in order to prevent the gear 4 from being displaced in the vertical direction, the present application is also provided with a limiting portion for limiting the vertical displacement of the gear 4. The limiting portion is a post-installation component, and the clamping device 2 is installed after the clamping device 2 clamps the gear 4. After the clamping device 2 clamps the gear 4, the two ends of the elastic member 15 are sleeved on the bolt 14, and the bolt 14 is fixed into the threaded hole set at the top of the clamping device 2. At this time, the elastic member 15 is set above the gear 4 to limit the gear 4. In order to further improve the limiting ability, the natural length of the elastic member 15 is less than the distance between the bolts 14, and it is in a stretched state when it is installed on the bolt 14. The elastic member 15 in this embodiment is preferably a spring rope or an elastic band.

[0064] In addition to limiting the position of the gear 4 in the vertical direction, the limiting portion can also maintain the stability of the clamping force of the clamping device 2 on the gear 4, especially Figure 6 In the embodiment shown, the two clamping devices 2 clamp the gear 4 from opposite directions. At this time, a limiting portion is installed between the two gears 4. In addition to limiting the gear 4 in the vertical direction, a larger clamping force is formed, further improving the clamping effect.

[0065] As a further embodiment of the present application, a positioning groove is provided on the workpiece housing 3, and a positioning pin 16 corresponding to the size and position of the positioning groove is provided at the bottom of the substrate 1. The combination of the positioning groove and the positioning pin 16 is provided with at least two, preferably four or more.

[0066] When the tightening and anti-rotation mechanism of the present application is working, the position is first fixed by inserting the positioning pin 16 into the positioning groove. After fixing the gear 4, the fastener at the coaxial end of the gear 4 needs to be tightened. During this process, the gear 4 will be affected by the friction force to generate torque. The torque is transmitted through the clamping device 2 and the base plate 1 and finally carried by the positioning pin 16 and the positioning groove to ensure the stability of the equipment during operation.

[0067] By adopting the above technical solution, the present application has the following beneficial effects:

[0068] (1) By setting up multiple clamping devices to clamp the gears from different directions, the fixing stability and anti-rotation effect of the gears are effectively improved. Especially in high torque or vibration environments, the loosening or displacement of the gears can be significantly reduced, ensuring the normal operation of the equipment.

[0069] (2) The shape of the clamping part meshes with the gear tooth surface, achieving precise clamping of the gear, enhancing the reliability of clamping, and avoiding damage to the gear. In addition, the detachable design of the clamping part and the connecting part makes the mechanism more convenient when repairing or replacing parts, reducing maintenance costs.

[0070] (3) The fixing part and the guide and limit structure on the base plate provide stable guidance and limit for the clamping device, ensuring the accuracy and stability of the clamping device during movement and further improving the anti-rotation effect.

[0071] (4) The setting of the limit part limits the gear in the longitudinal direction through the combination of bolts and elastic parts, which enhances the stability of the mechanism. At the same time, the elastic part works in a stretched state, which helps to maintain the stability of the clamping force and prevent the clamping force from being weakened due to vibration or impact.

[0072] (5) Three clamping devices with an angle of 120 degrees are set on the base plate, which not only realizes the uniform clamping of the gear, but also improves the stability of the entire mechanism, making the anti-rotation effect more significant.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tightening anti-rotation mechanism, characterized in that: including a base plate and a clamping device; The clamping device is arranged on the substrate; The substrate is connected to the workpiece housing; The clamping devices are provided with two or more, and clamp the gear from different directions respectively.

2. The tightening and anti-rotation mechanism according to claim 1, characterized in that: The clamping device comprises a connecting portion and a clamping portion; The connecting portion is used to connect with the substrate; The clamping portion is used to contact with the gear and clamp the gear.

3. The tightening and anti-rotation mechanism according to claim 2, characterized in that: The shape of the clamping portion meshes with the tooth surface of the gear to be clamped.

4. The tightening and anti-rotation mechanism according to claim 2, characterized in that: The clamping portion is detachably connected to the connecting portion.

5. The tightening and anti-rotation mechanism according to claim 2, characterized in that: The clamping part includes an integrated tooth body and a connecting handle; The connecting portion is provided with a receiving groove for receiving the connecting handle; After the connecting handle enters the receiving groove, the receiving groove and the connecting handle are both provided with positioning holes at corresponding positions; The fastener fixes the clamping portion and the connecting portion through the positioning hole.

6. The tightening and anti-rotation mechanism according to claim 1, characterized in that: A fixing portion is provided on the substrate; The fixing portion is provided with a guide and limit structure matching the shape of the clamping device, and is used for guiding and limiting the movement of the clamping device towards or away from the gear.

7. The tightening and anti-rotation mechanism according to claim 6, characterized in that: The guide and limiting structure is a slide rail, and the clamping device is a slider matched with the slide rail.

8. The tightening and anti-rotation mechanism according to claim 6, characterized in that: The fixing portion is also provided with an advance and retreat rod; One end of the advance and retreat rod is arranged on the fixing part through penetration, and the other end is arranged on the clamping device.

9. The tightening and anti-rotation mechanism according to claim 8, characterized in that: One end of the advancing and retreating rod that passes through the fixing portion is a threaded structure.

10. The tightening and anti-rotation mechanism according to claim 9, characterized in that: The number of the advance and retreat rods is two, and the two advance and retreat rods are arranged in parallel.

Images