A worm gear reducer for high load and low temperature

Abstract

The utility model discloses a high load low temperature worm and gear speed reducer relates to worm and gear speed reducer technical field. This high load low temperature worm and gear speed reducer, including the machine case, the support axle, the turbine body, the worm body and the servo motor. The device is through setting up the mounting groove in the support axle inside machine case one end, and the inside assembly of mounting groove has for the protective cover, and when the protective cover is extracted from the inside of mounting groove, can cover and set up the support axle one end outside machine case, and the protective cover combines ring seat, hollow box, adjusting screw and connecting block etc. parts, can open and close control to the opening of the protective cover one end outside machine case, make the protective cover under the auxiliary of closing end cap completely cover the support axle one end outside machine case, the support axle one end outside machine case and external environment carry out the isolation to prevent the support axle one end outside machine case from appearing damage, influence the high accuracy cooperation of support axle and equipment.

Description

Technical Field

[0001] This utility model relates to the field of worm gear reducer technology, specifically a worm gear reducer for high load and low temperature applications. Background Technology

[0002] In industries such as metallurgy, mining, and hoisting, some equipment needs to withstand large loads in low-temperature environments, such as hoisting equipment in mines and certain rolling equipment in the metallurgical industry. High-load, low-temperature worm gear reducers can meet their power transmission and speed reduction requirements, while operating reliably in low-temperature environments. Through a gear speed converter, the rotational speed of the motor is reduced and a larger torque is obtained.

[0003] The high-load, low-temperature worm gear reducer mainly consists of a housing, support shaft, worm gear, and worm. One end of the support shaft extends outside the housing for connection with other equipment. However, the exposed support shaft is in direct contact with moisture and dust particles in the external environment, leading to increased surface roughness and even scratches and grooves. This affects the fit accuracy between the support shaft and other components, thus impacting the safe operation of the high-load, low-temperature worm gear reducer. To address the shortcomings of existing technologies, we propose a high-load, low-temperature worm gear reducer to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a worm gear reducer for high-load and low-temperature applications. This solves the problem that directly exposed support shafts are in direct contact with moisture and dust particles in the external environment, leading to increased surface roughness of the exposed support shafts and even damage such as scratches and grooves. This affects the fitting accuracy between the support shafts and other components, and consequently, the safe operation of the worm gear reducer for high-load and low-temperature applications.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a worm gear reducer for high load and low temperature applications, comprising a housing, a support shaft, a worm gear body, a worm body, and a servo motor. A protective mechanism is provided inside the support shaft, and the protective mechanism includes:

[0006] The mounting slot is located at one end of the support shaft inside the chassis. A protective cover for protecting the support shaft located outside the chassis is slidably installed inside the mounting slot. The protective cover is provided with a heat insulation layer and protective components.

[0007] End caps are located at one end of the protective cover that extends to the outside of the chassis;

[0008] An adjustment assembly is provided at one end of the protective cover extending to the outside of the chassis. The adjustment assembly includes a ring seat for adjusting the position of the end cover, an adjustment screw, and a connecting block.

[0009] Preferably, a set of hollow boxes for supporting the adjusting screw are fixedly connected to the side of the ring seat, and the connecting block is fixedly disposed on one side of the end cover and threadedly sleeved on the outer wall of the adjusting screw located inside the hollow box.

[0010] Preferably, the other set of hollow boxes is internally fixedly connected with an auxiliary rod for stable movement of the end cap.

[0011] Preferably, a bolt is threaded onto one end of the adjusting screw that extends to the outside of the hollow box.

[0012] Preferably, the two sets of end caps are fixedly connected to a protective layer on the side near the ring seat.

[0013] Preferably, a slider is fixedly connected to the end of the protective cover away from the ring seat, and a groove for limiting the sliding of the slider is provided on the inner wall of the mounting groove.

[0014] Preferably, a locking block is fixedly connected to the inner wall of the ring seat, and a fixing screw for locking the ring seat and the support shaft is rotatably connected to one side of the locking block.

[0015] Preferably, one end of the support shaft extending outside the chassis is fixedly connected to a card holder for positioning and engaging the card block.

[0016] This utility model discloses a worm gear reducer for high-load and low-temperature applications, which has the following beneficial effects: The worm gear reducer has an installation groove at one end of the support shaft located inside the housing. A protective cover is installed inside the installation groove. When the protective cover is pulled out from the installation groove, it covers the end of the support shaft located outside the housing. The protective cover, combined with components such as a ring seat, hollow box, adjusting screw, and connecting block, allows for the opening and closing of the opening at the end of the protective cover outside the housing. This ensures that the protective cover, with the assistance of the closed end cover, completely covers the end of the support shaft outside the housing, isolating it from the external environment and preventing damage to the end of the support shaft outside the housing, thus ensuring a high-precision fit between the support shaft and the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2This is a cross-sectional view of the internal structure of the chassis of this utility model;

[0020] Figure 3 This is a schematic diagram of the meshing structure of the turbine body and the worm gear body of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of the support shaft and protective components of this utility model;

[0022] Figure 5 This is a schematic diagram of the support shaft and mounting groove structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the protective cover structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the connection structure of the end cap and adjustment component of this utility model.

[0025] In the diagram: 1. Chassis; 2. Support shaft; 3. Turbine body; 4. Worm gear body; 5. Servo motor; 6. Protective mechanism; 61. Mounting slot; 62. Protective cover; 63. End cap; 631. Protective layer; 64. Thermal insulation layer; 641. Protective component; 65. Adjustment assembly; 651. Ring seat; 652. Hollow box; 653. Adjusting screw; 654. Auxiliary rod; 655. Connecting block; 66. Slider; 67. Slide groove; 7. Fixing screw; 71. Card seat; 72. Card block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] This application provides a high-load, low-temperature worm gear reducer, which solves the problem that directly exposed support shafts are in direct contact with moisture and dust particles in the external environment, leading to increased surface roughness of the exposed support shafts, and even damage such as scratches and grooves, affecting the fitting accuracy of the support shafts with other components, and thus affecting the safe operation of the high-load, low-temperature worm gear reducer. This application provides protection for the end of the support shaft located outside the housing.

[0028] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0029] This utility model discloses a worm gear reducer for high load and low temperature applications.

[0030] According to the appendix Figure 1-7 As shown, the worm gear reducer includes a housing 1, a support shaft 2 rotatably disposed inside the housing 1, a turbine body 3 fixedly disposed on the outer wall of the support shaft 2, a worm gear body 4 rotatably disposed inside the housing 1 and meshing with the turbine body 3, and a servo motor 5 fixedly disposed on one side of the housing 1 and connected to the worm gear body 4. The housing 1, support shaft 2, worm gear body 3, worm gear body 4, and servo motor 5 constitute a worm gear reducer. This worm gear reducer is suitable for power transmission mechanisms in high-load and low-temperature environments. Through a gear speed converter, the rotational speed of the motor is reduced and a larger torque is obtained. Specifically, the worm gear body 4 rotates at high speed under the control of the servo motor 5, and transmits power to the turbine body 3 through the meshing of the helical tooth surface with the worm gear tooth surface of the turbine body 3. At the same time, the output speed is reduced and the torque is increased to meet its power transmission and deceleration requirements.

[0031] See attached document Figure 2-7 The support shaft 2 is equipped with a protective mechanism 6, which protects the end of the support shaft 2 located outside the chassis 1. The protective mechanism 6 includes a mounting groove 61, which is located at the end of the support shaft 2 inside the chassis 1. A protective cover 62 for protecting the end of the support shaft 2 located outside the chassis 1 is slidably disposed inside the mounting groove 61. The protective cover 62 contains a heat insulation layer 64 and a protective component 641. The specific material of the protective component 641 is selected according to actual needs. 641 is used to prevent scratches between the end of the support shaft 2 located outside the chassis 1 and the protective cover 62, so that when the protective cover 62 is placed over the end of the support shaft 2 located outside the chassis 1, it protects the end of the support shaft 2 located outside the chassis 1. The end of the protective cover 62 away from the ring seat 651 is fixedly connected to the slider 66. The inner wall of the mounting groove 61 is provided with a sliding groove 67 for limiting the sliding of the slider 66, so that the protective cover 62 and the support shaft 2 are always in a connected state under the limiting of the slider 66 and the sliding groove 67.

[0032] See attached document Figure 4-7 A locking block 72 is fixedly connected to the inner wall of the ring seat 651. A fixing screw 7 for locking the ring seat 651 and the support shaft 2 is rotatably connected to one side of the locking block 72. A locking seat 71 for positioning and engaging the locking block 72 is fixedly connected to one end of the support shaft 2 extending to the outside of the housing 1. When the protective cover 62 is retracted into the mounting slot 61, the locking block 72 engages in the locking seat 71 and is locked between them by the fixing screw 7, thus fixing the protective cover 62 and the support shaft 2. The retracted state of the protective cover 62 is shown in the attached figure. Figure 2-3 As shown;

[0033] See attached document Figure 4 and attached Figure 7End caps 63 are located at one end of the protective cover 62 extending to the outside of the chassis 1. A protective layer 631 is fixedly connected to the side of the two sets of end caps 63 near the ring seat 651. The protective layer 631 prevents the end caps 63 from scratching the end of the support shaft 2 located outside the chassis 1. An adjustment assembly 65 is located at one end of the protective cover 62 extending to the outside of the chassis 1. The adjustment assembly 65 allows for the opening and closing of the two sets of end caps 63. The adjustment assembly 65 includes a ring for adjusting the position of the end caps 63. The ring seat 651, the adjusting screw 653, and the connecting block 655 are fixedly connected to the side of the ring seat 651. A set of hollow boxes 652 for supporting the adjusting screw 653 are fixedly set on one side of the end cover 63 and threadedly sleeved on the outer wall of the adjusting screw 653 inside the hollow box 652. An auxiliary rod 654 for stable movement of the end cover 63 is fixedly connected inside another set of hollow boxes 652. A bolt is threadedly sleeved on one end of the adjusting screw 653 extending to the outside of the hollow box 652.

[0034] Specifically, in its initial state, the protective cover 62 is housed inside the mounting slot 61. The two sets of end caps 63 located at the outer end of the protective cover 62 outside the chassis 1 are in the open state. The two sets of end caps 63 are located on either side of the support shaft 2 at the outer end of the chassis 1, and they do not contact each other. See attached diagram for details. Figure 2 ;

[0035] During the transfer of the worm gear reducer, the end of the support shaft 2 located outside the housing 1 is directly exposed. At this time, first rotate the fixing screw 7 so that one end of the fixing screw 7 moves out of the inside of the support shaft 2, thereby loosening the connection between the protective cover 62 and the support shaft 2. Then, pull the protective cover 62 away from the housing 1 so that the protective cover 62 completely covers the end of the support shaft 2 located outside the housing 1. Next, rotate the adjusting screw 653 set at the hollow box 652 one after the other. Under the threaded connection between the adjusting screw 653 and the connecting block 655, the two sets of end covers 63 are moved, causing the two sets of end covers 63 to close together. This covers the opening of the protective cover 62 away from the support shaft 2, so that the end of the support shaft 2 located outside the housing 1 is sealed inside the combined protective cover 62 and end covers 63. At this time, external environmental factors will not directly affect the end of the support shaft 2 located outside the housing 1.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A worm gear reducer for high-load and low-temperature applications, comprising a housing (1), a support shaft (2), a turbine body (3), a worm gear body (4), and a servo motor (5), characterized in that, The support shaft (2) is provided with a protective mechanism (6), which includes: The mounting slot (61) is located at one end of the support shaft (2) inside the chassis (1). A protective cover (62) for protecting the support shaft (2) located outside the chassis (1) is slidably provided inside the mounting slot (61). An insulation layer (64) and a protective component (641) are provided inside the protective cover (62). End cap (63), which is located at one end of the protective cover (62) extending to the outside of the chassis (1); An adjustment assembly (65) is provided at one end of the protective cover (62) extending to the outside of the chassis (1). The adjustment assembly (65) includes a ring seat (651) for adjusting the position of the end cover (63), an adjustment screw (653) and a connecting block (655).

2. The worm gear reducer for high load and low temperature as described in claim 1, characterized in that: The side of the ring seat (651) is fixedly connected to a set of hollow boxes (652) for supporting the adjusting screw (653). The connecting block (655) is fixedly disposed on one side of the end cover (63) and threadedly sleeved on the outer wall of the adjusting screw (653) located inside the hollow box (652).

3. The worm gear reducer for high load and low temperature as described in claim 2, characterized in that: Another set of hollow boxes (652) has an auxiliary rod (654) fixedly connected inside for the stable movement of the end cap (63).

4. The worm gear reducer for high load and low temperature as described in claim 3, characterized in that: The adjusting screw (653) extends to one end outside the hollow box (652) and is threaded with a bolt.

5. A worm gear reducer for high load and low temperature as described in claim 2, characterized in that: The two sets of end caps (63) are fixedly connected to a protective layer (631) on the side near the ring seat (651).

6. The worm gear reducer for high load and low temperature as described in claim 1, characterized in that: The protective cover (62) is fixedly connected to a slider (66) at one end away from the ring seat (651), and the inner wall of the mounting groove (61) is provided with a sliding groove (67) for limiting the sliding of the slider (66).

7. A worm gear reducer for high load and low temperature as described in claim 1, characterized in that: The inner wall of the ring seat (651) is fixedly connected to a locking block (72), and a fixing screw (7) for locking the ring seat (651) and the support shaft (2) is rotatably connected to one side of the locking block (72).

8. A worm gear reducer for high load and low temperature as described in claim 7, characterized in that: The support shaft (2) extends to one end outside the chassis (1) and is fixedly connected to a card holder (71) for positioning and engaging the card block (72).

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