Worm and gear speed reducer with position detection function

Abstract

The utility model discloses a worm and gear speed reducer with a position detection function, and relates to the technical field of worm and gear speed reducers. Comprising a shell provided with a worm, an output shaft and a worm gear, a base is detachably connected to the bottom of the shell, grooves are formed in the bottoms of the two sides of the shell, protruding blocks capable of being clamped into the grooves are fixedly connected to the two sides of the top of the base, damping shock absorbers are arranged at the four corners of the bottom of the base, and clamping grooves are formed in the inner walls of the two sides of each groove. Movable grooves are symmetrically formed in an inner cavity of the convex block, a U-shaped groove communicated with the two movable grooves is further formed in the convex block, clamping rods capable of being clamped into the clamping grooves are movably connected into the movable grooves, and abutting mechanisms matched with the clamping rods to abut against the movable rods to move are symmetrically arranged in the U-shaped groove. According to the worm and gear speed reducer with the position detection function, the damping shock absorbers are arranged at the four corners of the base, the damping and buffering effects can be achieved in the use process of the speed reducer, and the base and the shell are also convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of worm gear reducers, in particular to a worm gear reducer with position detection. Background Art

[0002] The worm gear reducer is a power transmission mechanism that uses a gear speed converter to reduce the number of revolutions of the motor to the desired number of revolutions and obtain a larger torque. In the mechanism used to transmit power and motion, the application range of reducers is quite wide.

[0003] During use, most existing worm gear reducers are fixed on a mounting base by screws. Since the reducer will vibrate during operation and most mounting bases usually do not have a shock-absorbing function, the reducer is prone to damage after long-term use, which affects the service life of the reducer. Utility Model Content

[0004] The utility model provides a worm gear reducer with position detection function to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a worm gear reducer with position detection, comprising a shell provided with a worm, an output shaft and a worm wheel, the bottom of the shell being detachably connected to a base, the bottom of both sides of the shell being provided with grooves, both sides of the top of the base being fixedly connected with protrusions that can be snapped into the grooves, damping shock absorbers being provided at the four corners of the bottom of the base, the inner walls on both sides of the groove being provided with snap grooves, the inner cavity of the protrusion being symmetrically provided with movable grooves, the interior of the protrusion being also provided with a U-shaped groove connected with the two movable grooves, a clamping rod that can be snapped into the clamping rod being movably connected in the movable groove, and a resistance mechanism that cooperates with the clamping rod to resist the movement of the movable rod being symmetrically provided in the U-shaped groove.

[0006] Furthermore, the interference mechanism includes an inclined groove and a through groove. The surface of the movable rod is provided with an inclined groove with an inner wall inclined on one side. The surface of the movable rod is formed with an inclined groove, and the inclined groove portion of the movable rod passes through the through groove.

[0007] Furthermore, the two movable rods are connected via a connecting rod movably arranged in the U-shaped groove, and a screw rod rotatably connected to the connecting rod is threadedly connected to the surface of the protrusion.

[0008] Furthermore, a spring is provided between an inner wall of one side of the movable groove and the clamping rod.

[0009] Furthermore, a clamping hole is provided on the inner wall of the groove, and the end of the movable rod can pass through the U-shaped groove and be clamped into the clamping hole.

[0010] Furthermore, a radial magnetic ring is sleeved on the output shaft, and a magnetic induction circuit board cooperating with the radial magnetic ring is installed on the housing.

[0011] Compared with the prior art, the utility model provides a worm gear reducer with position detection, which has the following beneficial effects: the worm gear reducer with position detection can play a shock-absorbing and buffering role during the use of the reducer by arranging damping shock absorbers at the four corners of the base, and the base and the outer casing are also convenient for disassembly and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the reducer and the base of the utility model in a disassembled state;

[0014] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the planar structure of the utility model;

[0016] Figure 5 It is a schematic diagram of the top view of the protrusion of the utility model.

[0017] In the figure: 1, housing; 2, base; 3, worm; 4, output shaft; 5, worm wheel; 6, damping shock absorber; 7, groove; 8, bump; 9, slot; 10, movable slot; 11, U-shaped slot; 12, clamping rod; 13, movable rod; 14, connecting rod; 15, screw; 16, spring; 17, clamping hole; 18, magnetic induction circuit board; 19, radial magnetic ring; 20, inclined slot; 21, through slot. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5The utility model discloses a worm gear reducer with position detection, including a shell 1 provided with a worm 3, an output shaft 4 and a worm wheel 5, the bottom of the shell 1 is detachably connected to a base 2, the bottom of both sides of the shell 1 are provided with grooves 7, both sides of the top of the base 2 are fixedly connected with protrusions 8 that can be inserted into the grooves 7, damping shock absorbers 6 are provided at the four corners of the bottom of the base 2, the inner walls of both sides of the groove 7 are provided with grooves 9, the inner cavity of the protrusion 8 is symmetrically provided with movable grooves 10, and the inside of the protrusion 8 is also provided with a U-shaped groove 11 connected with the two movable grooves 10, the movable groove 10 is movably connected with a clamping rod 12 that can be inserted into the clamping groove 9, and the U-shaped groove 11 is symmetrically provided with a resistance mechanism that cooperates with the clamping rod 12 to resist the movement of the movable rod 13.

[0020] Specifically, the interference mechanism includes an inclined groove 20 and a through groove 21 . The surface of the movable rod 13 is provided with an inclined groove 20 with an inner wall inclined on one side. The surface of the movable rod 13 is formed with an inclined groove 20 , and the inclined groove 20 of the movable rod 13 partially passes through the through groove 21 .

[0021] The two movable rods 13 are connected via a connecting rod 14 movably disposed in the U-shaped groove 11 , and a screw 15 rotatably connected to the connecting rod 14 is threadedly connected to the surface of the protrusion 8 .

[0022] In this embodiment, the setting of the inclined groove 20 enables a portion of the surface of the movable rod 13 to form an inclined surface that cooperates with the inclined inner wall of the through groove 21. When the screw 15 is turned to drive the connecting rod 14 to move, the movable rod 13 can move synchronously. During this process, the inclined surface on the movable rod 13 can contact the inclined inner wall of the through groove 21, so that the clamping rod 12 can move along the movable groove 10 and be clamped into the clamping groove 9 on the outer shell 1.

[0023] The arrangement of the screw rod 15 can keep the clamping rod 12 inserted into the clamping slot 9 in a stable state.

[0024] Specifically, a spring 16 is provided between an inner wall of one side of the movable slot 10 and the clamping rod 12 .

[0025] In this embodiment, the provision of the spring 16 facilitates the reset of the clamping rod 12 .

[0026] Specifically, a clamping hole 17 is further provided on the inner wall of the groove 7 , and the end of the movable rod 13 can pass through the U-shaped groove 11 and be clamped into the clamping hole 17 .

[0027] In this embodiment, the cooperation between the locking hole 17 and the movable rod 13 can further improve the stability of the protrusion 8 when it is locked into the groove 7.

[0028] Specifically, a radial magnetic ring 19 is sleeved on the output shaft 4 , and a magnetic induction circuit board 18 cooperating with the radial magnetic ring 19 is installed on the housing 1 .

[0029] In this embodiment, the magnetic induction circuit board 18 also includes an ESP-38-ME type magnetic induction chip, which can detect the magnetic field changes of the radial magnetic ring 19 to obtain the rotation angle of the output shaft 4 by sensing the magnetic field changes.

[0030] In summary, the worm gear reducer with position detection can play a shock-absorbing and buffering role during the use of the reducer by arranging damping shock absorbers 6 at the four corners of the base 2, and the base 2 and the housing 1 are also convenient for disassembly and installation.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A worm gear reducer with position detection, comprising a housing (1) provided with a worm (3), an output shaft (4) and a worm wheel (5), characterized in that: The bottom of the shell (1) is detachably connected to a base (2), the bottom of both sides of the shell (1) are provided with grooves (7), the top of the base (2) is fixedly connected with protrusions (8) that can be inserted into the grooves (7), the four corners of the bottom of the base (2) are provided with damping shock absorbers (6), the inner walls of both sides of the groove (7) are provided with clamping grooves (9), the inner cavity of the protrusion (8) is symmetrically provided with movable grooves (10), the inside of the protrusion (8) is also provided with a U-shaped groove (11) connected with the two movable grooves (10), the movable groove (10) is movably connected with a clamping rod (12) that can be inserted into the clamping groove (9), and the U-shaped groove (11) is symmetrically provided with a resistance mechanism that cooperates with the clamping rod (12) to resist the movement of the movable rod (13).

2. A worm gear reducer with position detection according to claim 1, characterized in that: The interference mechanism comprises an inclined groove (20) and a through groove (21); the surface of the movable rod (13) is provided with an inclined groove (20) with an inner wall inclined on one side; the surface of the movable rod (13) is formed with an inclined groove (20); and the inclined groove (20) of the movable rod (13) partially passes through the through groove (21).

3. A worm gear reducer with position detection according to claim 2, characterized in that: The two movable rods (13) are connected via a connecting rod (14) movably arranged in the U-shaped groove (11), and a screw rod (15) rotatably connected to the connecting rod (14) is threadedly connected on the surface of the protrusion (8).

4. A worm gear reducer with position detection according to claim 1, characterized in that: A spring (16) is provided between an inner wall of one side of the movable groove (10) and the clamping rod (12).

5. The worm gear reducer with position detection according to claim 1, characterized in that: A clamping hole (17) is also provided on the inner wall of the groove (7), and the end of the movable rod (13) can pass through the U-shaped groove (11) and be clamped into the clamping hole (17).

6. A worm gear reducer with position detection according to claim 1, characterized in that: The output shaft (4) is sleeved with a radial magnetic ring (19), and the housing (1) is provided with a magnetic induction circuit board (18) that cooperates with the radial magnetic ring (19).

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