Locking device for input shaft of rotary speed reducer

Abstract

The utility model discloses a rotary speed reducer input shaft locking device which comprises a fixing seat, an input shaft disc is inserted into the fixing seat, a cover plate is installed on the end face of the fixing seat through a limiting bolt, locking bolts are inserted into the fixing seat and the input shaft disc, a connecting mechanism is connected above the locking bolts, and the fixing seat is provided with a locking groove. And a limiting mechanism is mounted below the locking bolt. The locking bolt is inserted into the fixing seat and the input shaft disc in a penetrating mode, the input shaft disc can be conveniently locked, when the locking bolt drives the limiting column to be inserted into the fixing seat, the surface of the telescopic clamping block can be squeezed, the telescopic clamping block is contracted into the limiting column, a reset spring is in a compressed state, and when the limiting column stretches out of the interior of the fixing seat, the reset spring is in a compressed state. The telescopic clamping blocks can be reset through the elastic force of the reset springs, at the moment, the locking plug pin can be integrally limited in the fixing base through the two sets of telescopic clamping blocks, and loosening and falling are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of reducer locking, in particular to a locking device for the input shaft of a rotary reducer. Background Technique

[0002] A rotary reducer is a reduction device that integrates a driving power source, a multi-tooth meshing slewing bearing, and a high-strength box structure. Its structure includes parts such as a box body, gears, a slewing bearing, and an input shaft.

[0003] For example, the patent publication number is CN213088715U, a locking device for the input shaft of a rotary reducer, which includes a fixed seat, a skeleton oil seal, a limit disk, a limit pin, a cover plate, cover plate bolts, and a rotary reducer. The fixed seat is provided with mounting holes and can be connected to the rotary reducer. The flange surface of the fixed seat is provided with a rectangular opening groove and can be connected to the limit pin. The limit disk is provided with a hexagonal hole and can be connected to the hexagonal head of the input shaft of the rotary reducer. The large end surface of the limit disk is provided with two rectangular opening grooves distributed in a cross shape and can be connected to the limit pin. The cover plate is provided with mounting holes and can be connected to the fixed seat to prevent the limit pin from falling off. The technical solution of the utility model effectively solves the problem that the input shaft of the original rotary reducer is not locked. However, the above device is locked by inserting the limit pin, and the limit pin is movable, resulting in easy loosening and falling off during use when affected by vibration or accidental pulling. Therefore, we propose a locking device for the input shaft of a rotary reducer to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a locking device for the input shaft of a rotary reducer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A locking device for the input shaft of a rotary reducer includes a fixed seat. An input shaft disk is inserted into the interior of the fixed seat. A cover plate is installed on the end surface of the fixed seat through a limit bolt. Locking pins are inserted into the interiors of both the fixed seat and the input shaft disk. A connection mechanism is connected above the locking pins, and a limit mechanism is installed below the locking pins.

[0007] Preferably, the connection mechanism includes a fixed ring. A fixed ring is installed above the locking pin, and a socket ring is sleeved on the surface of the fixed ring. One end of the socket ring is connected to one end of a connection column, and the other end of the connection column is connected to a fixed column through a connection rope. The connection rope can facilitate the limiting connection of the locking pin.

[0008] Preferably, the cross-sections of the fixing ring and the sleeved ring are both circular rings. An arc-shaped through groove adapted to the surface size of the fixing ring is provided inside the upper part of the locking bolt. The inner wall size of the sleeved ring is adapted to the surface size of the fixing ring. Through the arc-shaped through groove provided inside the upper part of the locking bolt, the fixing ring can move in the arc-shaped through groove.

[0009] Preferably, the limiting mechanism includes a plugging stud. A threaded hole is provided below the locking bolt, and the plugging stud is inserted into the threaded hole. A limiting column is fixedly connected below the plugging stud. Through the threaded hole provided below the locking bolt, the plugging stud can be conveniently installed.

[0010] Preferably, the limiting column is cylindrical, and a groove is provided inside the limiting column. One end of the reset spring is welded to the groove, and a telescopic clamping block is welded to the other end of the reset spring. Through the reset spring, the telescopic clamping block can be conveniently pushed.

[0011] Preferably, the surface of the telescopic clamping block is provided with an inclined surface. The inner wall size of the groove is adapted to the surface size of the telescopic clamping block. Through the inclined surface provided on the surface of the telescopic clamping block, when the inclined surface is squeezed, it can shrink into the groove.

[0012] Preferably, limiting sliders are fixedly connected to both sides of the telescopic clamping block, and sliding grooves adapted to the limiting sliders are provided on the inner wall of the groove. Through the limiting sliders, the telescopic clamping block can be conveniently limited.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By inserting the locking bolt into the fixing seat and the input shaft disc, the input shaft disc can be conveniently locked. When the locking bolt drives the limiting column to insert into the fixing seat, the surface of the telescopic clamping block can be squeezed and shrink into the limiting column, and the reset spring is in a compressed state. When the limiting column extends out of the fixing seat, through the elastic force of the reset spring itself, the telescopic clamping block can be reset. At this time, the locking bolt can be integrally limited in the fixing seat by two groups of telescopic clamping blocks, avoiding loosening and falling.

[0015] 2. By sleeving the sleeved ring on the surface of the fixing ring, the connecting rope can connect the locking bolt and the fixing seat, which is convenient to prevent the locking bolt from being lost after it is pulled out. At the same time, the sleeved ring moves along the surface of the fixing ring, which can reduce wear and improve the service life of the connecting rope and the connecting column. At the same time, by threadedly inserting the plugging stud into the locking bolt, the whole limiting column can be conveniently disassembled, assembled and replaced. Description of the Drawings

[0016] Figure 1Schematic three-dimensional view of a locking device for the input shaft of a rotary speed reducer proposed by the present utility model;

[0017] Figure 2 Schematic bottom three-dimensional view of a locking device for the input shaft of a rotary speed reducer proposed by the present utility model;

[0018] Figure 3 For Figure 1 Schematic bottom three-dimensional view of the locking bolt and connecting rope structure in

[0019] Figure 4 For Figure 1 Schematic three-dimensional sectional view of the plugging stud and limit post structure in

[0020] In the figure: 1, fixed seat; 2, input shaft disc; 3, limit bolt; 4, cover plate; 5, locking bolt;

[0021] 6, connecting mechanism; 61, fixed ring; 62, socket ring; 63, connecting column; 64, connecting rope; 65, fixed column;

[0022] 7, limiting mechanism; 71, plugging stud; 72, limit post; 73, return spring; 74, telescopic block; 75, limit slider. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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.

[0024] Referring to Figures 1-4 , a locking device for the input shaft of a rotary speed reducer includes a fixed seat 1. An input shaft disc 2 is inserted into the interior of the fixed seat 1. A cover plate 4 is installed on the end face of the fixed seat 1 through a limit bolt 3. A locking bolt 5 is inserted into the interiors of both the fixed seat 1 and the input shaft disc 2. A connecting mechanism 6 is connected above the locking bolt 5. By driving the limiting mechanism 7 through the locking bolt 5 into the fixed seat 1, the input shaft disc 2 can be locked. At the same time, the limiting mechanism 7 can limit the function of the locking bolt 5. A limiting mechanism 7 is installed below the locking bolt 5.

[0025] Further, referring to Figure 1 and Figure 3 , it can be known that the connecting mechanism 6 includes a fixed ring 61. A fixed ring 61 is installed above the locking bolt 5. A socket ring 62 is sleeved on the surface of the fixed ring 61. One end of the socket ring 62 is connected to one end of a connecting column 63. The other end of the connecting column 63 is connected to a fixed column 65 through a connecting rope 64. The connecting rope 64 can facilitate the connection and limitation of the socket ring 62.

[0026] Further, referring to Figure 1 and Figure 3 it can be known that the cross-sections of the fixed ring 61 and the socket ring 62 are both arranged in a circular ring shape. An arc-shaped through groove adapted to the surface size of the fixed ring 61 is opened inside the upper part of the locking bolt 5. The inner wall size of the socket ring 62 is adapted to the surface size of the fixed ring 61. By setting the socket ring 62 in a circular ring shape, the socket ring 62 can be sleeved on the surface of the fixed ring 61.

[0027] Further, referring to Figure 3 and Figure 4 it can be known that the limiting mechanism 7 includes a plugging stud 71. A threaded hole is opened below the locking bolt 5, and the plugging stud 71 is inserted into the threaded hole. A limiting column 72 is fixedly connected below the plugging stud 71. Through the threaded hole opened below the locking bolt 5, the plugging stud 71 can be threadedly connected to the locking bolt 5.

[0028] Further, referring to Figure 3 and Figure 4 it can be known that the limiting column 72 is arranged in a cylindrical shape, and a groove is opened inside the limiting column 72. One end of a return spring 73 is welded to the groove, and a telescopic clamping block 74 is welded to the other end of the return spring 73. Through the elastic force of the return spring 73 itself, the telescopic clamping block 74 can be conveniently pushed.

[0029] Further, referring to Figure 3 and Figure 4 it can be known that the surface of the telescopic clamping block 74 is provided with an inclined surface. The inner wall size of the groove is adapted to the surface size of the telescopic clamping block 74. Through the groove opened inside the limiting column 72, the telescopic clamping block 74 can be conveniently accommodated.

[0030] Further, referring to Figure 3 and Figure 4 it can be known that limiting sliders 75 are fixedly connected to both sides of the telescopic clamping block 74. Sliding grooves adapted to the limiting sliders 75 are opened on the inner wall of the groove. Through the movement of the telescopic clamping block 74, the limiting sliders 75 can slide in the sliding grooves, playing a role in limiting and guiding the telescopic clamping block 74.

[0031] Working principle: When the present utility model is in use, when the fixed seat 1 is in use, according to the attached Figure 1 、attached Figure 2 、attached Figure 3 and attached Figure 4, by driving the locking pin 5 to drive the limit post 72 into the interior of the fixed seat 1, the inclined surface of the surface of the telescopic latch 74 can be squeezed, so that the telescopic latch 74 can contract into the limit post 72, making the return spring 73 in a compressed state. When the locking pin 5 drives the limit post 72 to pass through the fixed seat 1 and the input shaft disc 2, the whole limit post 72 can be exposed. At this time, through the elastic force of the return spring 73 itself, the telescopic latch 74 can be reset and extended. At this time, the locking pin 5 can be limited in the fixed seat 1 through the two groups of telescopic latches 74. When the locking pin 5 needs to be pulled out, by manually pressing the telescopic latch 74, the telescopic latch 74 can contract into the limit post 72. At this time, the fixing ring 61 can be pulled to pull out the locking pin 5 from the fixed seat 1, and the locking pin 5 and the fixed seat 1 can be connected through the connecting rope 64;

[0032] The above is all the working principles of the present invention.

[0033] In the present invention, the installation methods, connection methods or setting methods of all the above-mentioned components are common mechanical methods, and the specific structures, models and coefficient indexes of all its components are its own technologies. As long as the beneficial effects can be achieved, they can be implemented, so no more details will be given.

[0034] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

[0035] In the present invention, unless otherwise stated, the directional terms such as "up and down, left and right, front and back, inside and outside, vertical and horizontal" included in the terms only represent the directions of the terms in the normal use state, or the common names understood by those skilled in the art, and should not be regarded as a limitation of the terms. At the same time, the numerical terms such as "first", "second" and "third" do not represent specific quantities and orders, but are only used for name distinction. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A locking device for the input shaft of a rotary speed reducer, comprising a fixed seat (1), characterized in that, An input shaft disc (2) is inserted inside the fixed seat (1). A cover plate (4) is installed on the end face of the fixed seat (1) through a limit bolt (3). A locking pin (5) is inserted inside both the fixed seat (1) and the input shaft disc (2). A connecting mechanism (6) is connected above the locking pin (5), and a limiting mechanism (7) is installed below the locking pin (5).

2. The locking device for the input shaft of a rotary speed reducer according to claim 1, characterized in that, The connecting mechanism (6) includes a fixed ring (61). The fixed ring (61) is installed above the locking pin (5). A socket ring (62) is sleeved on the surface of the fixed ring (61). One end of the socket ring (62) is connected to one end of a connecting column (63), and the other end of the connecting column (63) is connected to a fixed column (65) through a connecting rope (64).

3. The locking device for the input shaft of a rotary speed reducer according to claim 2, characterized in that, The cross-sections of both the fixed ring (61) and the socket ring (62) are circular rings. An arc-shaped through groove adapted to the surface size of the fixed ring (61) is opened inside the upper part of the locking pin (5). The inner wall size of the socket ring (62) is adapted to the surface size of the fixed ring (61).

4. A locking device for the input shaft of a rotary speed reducer according to claim 1, characterized in that, The limiting mechanism (7) includes a plugging stud (71). A threaded hole is opened below the locking pin (5), and the plugging stud (71) is inserted into the threaded hole. A limiting column (72) is fixedly connected below the plugging stud (71).

5. A locking device for the input shaft of a rotary speed reducer according to claim 4, characterized in that, The limiting column (72) is cylindrical, and a groove is opened inside the limiting column (72). One end of a return spring (73) is welded to the groove, and the other end of the return spring (73) is welded to a telescopic locking block (74).

6. The locking device for the input shaft of a rotary speed reducer according to claim 5, characterized in that The surface of the telescopic locking block (74) is provided with an inclined surface. The inner wall size of the groove is adapted to the surface size of the telescopic locking block (74).

7. The locking device for the input shaft of a rotary speed reducer according to claim 6, characterized in that, Limiting sliders (75) are fixedly connected to both sides of the telescopic locking block (74), and a chute adapted to the limiting sliders (75) is opened on the inner wall of the groove.

Images