Fixing mechanism and gear reducer thereof

Abstract

The utility model discloses a fixing mechanism and a gear reducer thereof, and relates to the technical field of gear reducer fixing, the fixing mechanism comprises an installation fixing seat, an extrusion mechanism and a limiting mechanism, the outer wall of the installation fixing seat is provided with a counterbore, the inner wall of the counterbore is provided with an insertion hole, the extrusion mechanism is arranged in the counterbore, and the limiting mechanism is arranged in the insertion hole. The extrusion mechanism comprises a movable backing ring movably arranged in the counterbore, and a first compression spring is arranged between the movable backing ring and the inner wall of the counterbore. By means of the arrangement of the movable backing ring and the first compression spring, the installation bolt tightly abuts against the movable backing ring, at the moment, through the elastic effect of the first compression spring, the movable backing ring always generates extrusion force on a rotary knob of the installation bolt in the longitudinal direction, and therefore the outer wall of the installation bolt and the inner wall of an external threaded hole are mutually extruded; and the meshing friction force is increased, so that the mounting bolt for fixing is not easy to loosen, and the stability of fixed mounting of the gear reducer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear reducer fixing, and particularly relates to a fixing mechanism and a gear reducer thereof. Background Technique

[0002] A gear reducer is a widely used speed reduction device that uses multi-stage gear transmissions to achieve the purpose of speed reduction.

[0003] The working ends of the gear reducer are divided into an input end and an output end. When a high-speed rotating device is connected to the input end, the device connected to the output end can rotate at a low speed.

[0004] Most current gear reducers are installed and fixed to the mounting surface of external devices through bolts. However, during the operation of the gear reducer, with the rotation of the shaft and the transmission between gears, the bolts may become loose, thereby reducing the stability of the installation and fixation of the gear reducer. For this reason, we propose a fixing mechanism and a gear reducer thereof. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fixing mechanism and a gear reducer thereof to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A fixing mechanism, comprising:

[0007] Mounting and fixing seats, there are two groups of the mounting and fixing seats, and the two groups of mounting and fixing seats respectively mount and fix the output end and the input end of the gear reducer. A countersunk hole is opened on the outer wall of the mounting and fixing seat, and a jack is opened on the inner wall of the countersunk hole;

[0008] An extrusion mechanism, the extrusion mechanism is arranged inside the countersunk hole, the extrusion mechanism includes a movable cushion ring movably arranged inside the countersunk hole, a first compression spring is arranged between the movable cushion ring and the inner wall of the countersunk hole, and a receiving mechanism is arranged inside the countersunk hole;

[0009] A limiting mechanism, the limiting mechanism is arranged inside the countersunk hole.

[0010] Preferably, the receiving mechanism includes an annular groove, the annular groove is opened on the inner wall of the countersunk hole, the first compression spring is inserted inside the annular groove, and a connecting mechanism is arranged between the outer wall of the movable cushion ring and the inner wall of the countersunk hole.

[0011] Preferably, the connecting mechanism includes limiting sliders symmetrically and fixedly connected to the outer wall of the movable cushion ring, limiting grooves are symmetrically opened on the inner wall of the countersunk hole, and the outer wall of the limiting slider is slidably connected to the inner wall of the limiting groove.

[0012] Preferably, the limiting mechanism includes a movable groove formed in the inner wall of the countersunk hole. A limiting rod is slidably connected to the inner wall of the movable groove, and an elastic mechanism is arranged inside the movable groove.

[0013] Preferably, the elastic mechanism includes a second compression spring arranged inside the movable groove, and an unlocking mechanism is arranged inside the movable groove.

[0014] Preferably, the unlocking mechanism includes a communicating groove formed in the outer wall of the mounting and fixing seat. The inside of the communicating groove communicates with the inside of the movable groove. An unlocking slider is slidably arranged inside the communicating groove, and one end of the unlocking slider is fixedly connected to the outer wall of the limiting rod.

[0015] This utility model also provides a gear speed reducer, including the fixing mechanism described in any one of the above.

[0016] The technical effects and advantages of this utility model:

[0017] By using the movable gasket ring and the first compression spring, the mounting bolt is inserted into the countersunk hole, and then into the movable gasket ring and the jack hole in sequence until the mounting bolt is screwed into the threaded hole on the mounting surface. As the mounting bolt is continuously screwed, the movable gasket ring squeezes the first compression spring until the mounting bolt tightly abuts against the movable gasket ring. At this time, through the elastic action of the first compression spring, the movable gasket ring always generates a squeezing force on the knob of the mounting bolt longitudinally, so that the outer wall of the mounting bolt and the inner wall of the external threaded hole are mutually squeezed, increasing the meshing friction force, and thus making the mounting bolt for fixing not easy to loosen, thereby improving the stability of the fixed installation of the gear speed reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of this utility model.

[0019] Figure 2 It is a front sectional structural schematic diagram of the movable gasket ring of this utility model.

[0020] Figure 3 It is a side sectional structural schematic diagram of the movable gasket ring of this utility model.

[0021] In the figure: 101, mounting and fixing seat; 102, countersunk hole; 103, jack hole; 201, movable gasket ring; 202, first compression spring; 301, annular groove; 401, limiting groove; 402, limiting slider; 501, movable groove; 502, limiting rod; 503, second compression spring; 601, communicating groove; 602, unlocking slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides a fixing mechanism as Figures 1-3 shown, which includes an installation fixing seat 101, a pressing mechanism and a limiting mechanism. There are two groups of installation fixing seats 101, and the two groups of installation fixing seats 101 are respectively used to install and fix the output end and the input end of the gear reducer. A countersunk hole 102 is formed on the outer wall of the installation fixing seat 101, and a jack 103 is formed on the inner wall of the countersunk hole 102. The gear reducer can be used by fixing the installation fixing seat 101 to the installation surface of the external device.

[0024] In a preferred embodiment, the pressing mechanism is arranged inside the countersunk hole 102. The pressing mechanism includes a movable gasket ring 201 movably arranged inside the countersunk hole 102. A first compression spring 202 is arranged between the movable gasket ring 201 and the inner wall of the countersunk hole 102. An accommodating mechanism is arranged inside the countersunk hole 102. During the actual fixing operation, an installation bolt is inserted into the countersunk hole 102, and then inserted into the movable gasket ring 201 and the jack 103 in sequence until the installation bolt is screwed into the threaded hole on the installation surface. As the installation bolt is continuously screwed, the movable gasket ring 201 presses the first compression spring 202 until the installation bolt tightly abuts against the movable gasket ring 201. At this time, due to the elastic action of the first compression spring 202, the movable gasket ring 201 always generates a squeezing force on the knob of the installation bolt longitudinally, so that the outer wall of the installation bolt and the inner wall of the external threaded hole are mutually squeezed, increasing the meshing friction force, and thus making the installation bolt for fixing not easy to loosen, thereby improving the stability of the fixed installation of the gear reducer;

[0025] Among them, the accommodating mechanism includes an annular groove 301 which is opened on the inner wall of the countersunk hole 102. A first compression spring 202 is inserted inside the annular groove 301. A connecting mechanism is provided between the outer wall of the movable gasket ring 201 and the inner wall of the countersunk hole 102. Through the setting of the annular groove 301, the knob of the mounting bolt can be made to squeeze the movable gasket ring 201, and the movable gasket ring 201 squeezes the first compression spring 202 until the first compression spring 202 completely enters the annular groove 301. At this time, the movable gasket ring 201 abuts against the inner wall of the countersunk hole 102. At this time, the first compression spring 202 in the annular groove 301 is in a compressed state, so that the extrusion mechanism can work stably. At the same time, through the setting of the annular groove 301, each time the mounting bolt is tightened, it is the movable gasket ring 201 that abuts against the inner wall of the countersunk hole 102, and the knob of the mounting bolt abuts against the movable gasket ring 201, ensuring that each mounting bolt is in the same installation position state.

[0026] Among them, the connecting mechanism includes limit sliders 402 symmetrically and fixedly connected to the outer wall of the movable gasket ring 201. Limit grooves 401 are symmetrically opened on the inner wall of the countersunk hole 102. The outer wall of the limit slider 402 is slidably connected to the inner wall of the limit groove 401. By sliding the limit slider 402 in the limit groove 401, the movement of the movable gasket ring 201 in the countersunk hole 102 can be limited, and the movable gasket ring 201 will not be separated from the countersunk hole 102, thereby improving the stability of the movable gasket ring 201 in use.

[0027] Among them, the limiting mechanism is arranged inside the countersunk hole 102. The limiting mechanism includes a movable groove 501 opened on the inner wall of the countersunk hole 102. A limiting rod 502 is slidably connected to the inner wall of the movable groove 501. An elastic mechanism is arranged inside the movable groove 501. When the mounting bolt tightly squeezes the movable gasket ring 201 in the countersunk hole 102, the fixed installation of the gear reducer is completed at this time. Then, the limiting rod 502 is extended from the movable groove 501 to block the knob of the mounting bolt, which can prevent the mounting bolt from loosening, thereby improving the stability of the fixed installation of the gear reducer.

[0028] Among them, the elastic mechanism includes a second compression spring 503 which is arranged inside the movable groove 501. An unlocking mechanism is arranged inside the movable groove 501. Through the elastic action of the second compression spring 503, the limiting rod 502 always has a tendency to move into the countersunk hole 102. That is, when the limiting rod 502 is not subjected to a large external force, the limiting rod 502 can be stably inserted into the countersunk hole 102 to limit the mounting bolt, thereby improving the stability of the limiting mechanism in working and also improving the stability of the fixed installation of the gear reducer.

[0029] Among them, the unlocking mechanism includes a communication groove 601 formed on the outer wall of the installation and fixing base 101. The inside of the communication groove 601 is communicated with the inside of the movable groove 501. An unlocking slider 602 is slidably arranged inside the communication groove 601. One end of the unlocking slider 602 is fixedly connected to the outer wall of the limiting rod 502. When it is necessary to install or disassemble the gear reducer, at this time, it is necessary to insert or remove the installation bolt into or from the counterbore 102. Then, the unlocking slider 602 can be moved in the communication groove 601. The movement of the unlocking slider 602 can drive the limiting rod 502 to move, so that the limiting rod 502 compresses the second compression spring 503 and moves into the movable groove 501 until the limiting rod 502 completely enters the movable groove 501. Then, the installation bolt can be inserted into or screwed out from the counterbore 102, thereby improving the convenience of the operation of the limiting mechanism. The opening position of the communication groove 601 on the outer wall of the counterbore 102 is in an open state, which facilitates the operator to move the unlocking slider 602 at the outer wall position of the counterbore 102, thus improving the convenience of the operation of the unlocking mechanism.

[0030] The present utility model also provides a gear reducer, including the fixing mechanism of any one of the above.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A fixing mechanism, characterized in that: include: A mounting fixing seat (101), wherein the mounting fixing seat (101) is provided with two groups, and the two groups of the mounting fixing seats (101) are used to respectively mount and fix the output end and the input end of the gear reducer, and the outer wall of the mounting fixing seat (101) is provided with a countersunk hole (102), and the inner wall of the countersunk hole (102) is provided with a plug hole (103); An extrusion mechanism, the extrusion mechanism is arranged inside the countersunk hole (102), the extrusion mechanism comprises a movable gasket (201) movably arranged inside the countersunk hole (102), a first compression spring (202) is arranged between the movable gasket (201) and the inner wall of the countersunk hole (102), and a receiving mechanism is arranged inside the countersunk hole (102); A limiting mechanism is arranged inside the countersunk hole (102).

2. A fixing mechanism according to claim 1, characterized in that: The accommodating mechanism comprises an annular groove (301), the annular groove (301) is opened on the inner wall of the countersunk hole (102), the first compression spring (202) is inserted into the inside of the annular groove (301), and a connecting mechanism is arranged between the outer wall of the movable gasket (201) and the inner wall of the countersunk hole (102).

3. A fixing mechanism according to claim 2, characterized in that: The connection mechanism comprises a limiting slider (402) symmetrically fixedly connected to the outer wall of the movable gasket (201); the inner wall of the countersunk hole (102) is symmetrically provided with a limiting groove (401); the outer wall of the limiting slider (402) is slidably connected to the inner wall of the limiting groove (401).

4. A fixing mechanism according to claim 1, characterized in that: The limiting mechanism comprises a movable groove (501) formed on the inner wall of the countersunk hole (102); the inner wall of the movable groove (501) is slidably connected to the limiting rod (502); and an elastic mechanism is arranged inside the movable groove (501).

5. A fixing mechanism according to claim 4, characterized in that: The elastic mechanism comprises a second compression spring (503), the second compression spring (503) is arranged inside the movable groove (501), and an unlocking mechanism is arranged inside the movable groove (501).

6. A fixing mechanism according to claim 5, characterized in that: The unlocking mechanism comprises a connecting groove (601) formed on the outer wall of the mounting base (101), the interior of the connecting groove (601) being connected to the interior of the movable groove (501), an unlocking slider (602) being slidably disposed inside the connecting groove (601), and one end of the unlocking slider (602) being fixedly connected to the outer wall of the limiting rod (502).

7. A gear reducer, characterized in that: It comprises the fixing mechanism described in any one of claims 1 to 6.

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