Gear shaft sleeve with long service life

Abstract

The gear shaft sleeve with the long service life comprises an inner gear, an inner gear ring is arranged in the inner gear, a disc end face is arranged on one side of the inner gear ring, an outer shaft sleeve is arranged on the inner side of the disc end face, and an inner shaft sleeve is arranged on the inner side of the outer shaft sleeve. Fixing mechanisms are symmetrically arranged in the two sides of the outer shaft sleeve, and limiting assemblies are arranged in the fixing mechanisms. The fixing mechanism comprises mounting boxes symmetrically mounted in the outer shaft sleeve, an operating rod is slidably connected to the interior of one end of each mounting box, an extrusion block is mounted at one end of each operating rod, a mounting frame is fixedly connected to one side of each mounting box, and an extrusion rod is slidably connected to the interior of one side of each mounting box. And through the design of the multiple sets of insertion blocks, the connection stability between the inner shaft sleeve and the outer shaft sleeve can be greatly improved, the maintenance efficiency of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gear shaft sleeves, in particular to a gear shaft sleeve with a long service life. Background Art

[0002] A reducer is an independent component consisting of a gear transmission, a worm transmission, a gear and a worm transmission enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine. The sleeve is a common part that is sleeved on the reducer gear, and a clearance fit is used between the sleeve and the shaft.

[0003] Announcement No. CN215172073U discloses a reducer internal gear sleeve, which includes an outer sleeve and an inner sleeve through a sleeve body, so that the inner wall surface of the outer sleeve is provided with an inner thread, the outer wall of the inner sleeve is provided with an outer thread matching the inner thread, and a limiting mechanism is provided on one side of the inner wall of the outer sleeve. The use of the groove, spring, hook and connecting column of the limiting mechanism and the hook groove matching the hook provided on one side of the outer wall of the inner sleeve can greatly facilitate the disassembly and replacement of the reducer internal gear sleeve, avoid the problem of inconvenient replacement due to severe bearing wear, and improve the performance of the reducer internal gear sleeve. However, the patent still has the following problems in actual use:

[0004] The device is provided with an external thread matched with the internal thread on the outer wall of the inner sleeve, and a limiting mechanism is provided on one side of the inner wall of the outer sleeve. The grooves, springs, hooks and connecting columns of the limiting mechanism and the hook grooves matched with the hook are provided on the outer wall of one side of the inner sleeve, which can greatly facilitate the disassembly and replacement of the inner gear sleeve of the reducer. In the prior art, when the inner sleeve is replaced, it is fixed to the inner side of the outer sleeve by a threaded connection. Since the threaded connection requires precise alignment of the threads on the inner sleeve and the outer sleeve, the inner sleeve needs to be continuously rotated during the installation process to complete the connection, which not only increases the complexity of the operation, but also may lead to low installation efficiency. In addition, during the disassembly process, the inner sleeve also needs to be rotated in the opposite direction to release the connection, which undoubtedly increases the complexity of the operation in occasions that require regular disassembly, observation and maintenance.

[0005] A gear sleeve with a long service life is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a gear sleeve with a long service life, so as to solve the problem proposed in the above-mentioned background technology that an external thread compatible with the internal thread is provided on the outer wall of the inner sleeve, and a limiting mechanism is provided on one side of the inner wall of the outer sleeve. Through the use of the grooves, springs, hooks and connecting columns of the limiting mechanism and the hook groove compatible with the hook provided on the outer wall of one side of the inner sleeve, the disassembly and replacement of the internal gear sleeve of the reducer can be greatly facilitated. In the prior art, when the inner sleeve is replaced, it is fixed to the inner side of the outer sleeve by a threaded connection. Since the threaded connection requires precise alignment of the threads on the inner sleeve and the outer sleeve, the inner sleeve needs to be continuously rotated during the installation process to complete the connection, which not only increases the complexity of the operation, but also may lead to low installation efficiency. In addition, during the disassembly process, the inner sleeve also needs to be rotated in the opposite direction to release the connection. This undoubtedly increases the complexity of the operation for occasions that require regular disassembly, observation and maintenance.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gear sleeve with a long service life, comprising an internal gear, an inner gear ring is arranged inside the internal gear, a disc end face is arranged on one side of the inner gear ring, an outer sleeve is arranged on the inner side of the disc end face, and an inner sleeve is arranged on the inner side of the outer sleeve; fixing mechanisms are symmetrically arranged inside the two sides of the outer sleeve, and a limit position assembly is arranged inside the fixing mechanism;

[0008] Among them, the fixing mechanism includes an installation box symmetrically installed inside the outer sleeve, and an operating rod is slidably connected inside one end of the installation box, and an extrusion block is installed at one end of the operating rod, and an installation frame is fixedly connected to one side of the installation box, and an extrusion rod is slidably connected inside one side of the installation box, and an extrusion plate is fixedly connected to one end of the extrusion rod, and an insertion block is installed on one side of the extrusion plate, and a clamping strip is welded on the outside of the inner sleeve, and the clamping strip is slidably connected to the inside of the outer sleeve, and the insertion block and the clamping strip are plugged into each other.

[0009] Preferably, the installation frame is symmetrically provided with slide grooves inside, and sliders are symmetrically installed at both ends of the extrusion plate, and the sliders are slidably connected inside the slide grooves, and a first telescopic spring is provided between the sliders and the inside of the slide grooves.

[0010] Preferably, the outer sleeve is symmetrically provided with mounting grooves inside, and a movable plate is slidably connected between the mounting box and the mounting groove, and one end of the movable plate is fixedly connected to the extrusion block, and teeth are installed on one side of the movable plate, and a toothed disc is rotatably connected inside the mounting groove, and an insert plate is symmetrically slidably connected inside the mounting groove, and one end of the insert plate is plugged into the card strip, and a rotating rod is rotatably connected to the side of the toothed disc away from the center, and one end of the rotating rod is rotatably connected to the insert plate.

[0011] Preferably, the limit assembly includes a block fixedly connected to one end of the operating rod, and a support frame is symmetrically installed inside one end of the mounting box, and the limit rod is slidably connected inside the support frame, and one end of the limit rod is plugged into the block, and an operating panel is installed on the outside of the limit rod, and a push rod is installed on one end of the operating panel, and a fixed tube is installed on one side of the interior of the support frame, and one end of the push rod is slidably connected through the fixed tube, and a second telescopic spring is arranged inside the fixed tube.

[0012] Preferably, the teeth are meshingly connected to the gear disc.

[0013] Preferably, the card block is inserted inside one end of the installation box.

[0014] Preferably, the extrusion plate is slidably connected to the inner side of the installation frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the gear sleeve with a long service life is specifically described as follows: the extrusion rod is extruded by the extrusion block through the adaption installation between the card strip and the outer sleeve, and the multiple groups of plug blocks are plugged into the card strip, so that the connection and separation between the inner sleeve and the outer sleeve can be quickly realized, and the design of the multiple groups of plug blocks can greatly improve the connection stability between the inner sleeve and the outer sleeve, without the need for complex thread matching and rotation operations, improve the maintenance efficiency and service life of the device, and reduce the maintenance cost, promote the rotation of the toothed disc through the tooth meshing, and then push the plug plate to slide inside the installation groove through the rotating rod, so that the plug plate is plugged into the card strip, so that the other end of the inner sleeve can be limited, so that the connection stability between the inner sleeve and the outer sleeve can be further improved, and the tension generated by the second telescopic spring makes one end of the limit rod plugged into the card block, so that the effect of quickly fixing and limiting the adjusted operating rod can be achieved, avoiding the phenomenon of the operating rod being offset due to external force factors, and greatly reducing the phenomenon of falling off between the inner sleeve and the outer sleeve.

[0016] 1. Insert the inner sleeve into the outer sleeve, and the card strip and the outer sleeve are fitted together. Press the operating rod to drive the extrusion block to slide inside the installation box. The extrusion block squeezes the extrusion rod, and then drives the extrusion plate to slide inside the installation frame. At this time, multiple groups of plug-in blocks are plugged into the card strip, so that the inner sleeve and the outer sleeve can be quickly connected and separated. The design of multiple groups of plug-in blocks can greatly improve the connection stability between the inner sleeve and the outer sleeve, without the need for complex thread matching and rotation operations, thereby improving the maintenance efficiency and service life of the device and reducing maintenance costs.

[0017] 2. The movement of the extrusion block drives the moving plate to slide inside the installation slot. At this time, the teeth mesh to drive the rotation of the gear plate. The rotation of the gear plate drives the circular trajectory of the rotating rod to rotate, and then the rotating rod drives the plug plate to slide inside the installation slot, so that the plug plate and the card strip are plugged in, so that the other end of the inner sleeve can be limited, so as to further improve the connection stability between the inner sleeve and the outer sleeve, which brings convenience to the staff when using;

[0018] 3. After the adjustment of the operating rod is completed, the block is plugged into the installation box, and the staff pushes the operating panel to drive the push rod and the limit rod to move. At this time, one end of the push rod slides inside the fixed tube, so that the second telescopic spring is squeezed and contracted, and the operating panel is released, and the tension generated by the second telescopic spring causes one end of the limit rod to be plugged into the block, so that the adjusted operating rod can be quickly fixed and limited, avoiding the phenomenon of the operating rod being offset due to external force factors, greatly reducing the phenomenon of the inner sleeve and the outer sleeve falling off, and bringing convenience to the staff when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the overall top view of the outer sleeve and the inner sleeve in the utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the installation box in the utility model;

[0022] Figure 4 It is a partial enlarged structural diagram of the fixing mechanism in the utility model;

[0023] Figure 5 It is a schematic diagram of the enlarged structure of part A in the utility model;

[0024] Figure 6 This is a cross-sectional view of the overall top view of the operating structure of the outer sleeve and the inner sleeve in the utility model.

[0025] In the figure: 1. internal gear; 101. inner gear ring; 102. end face of disc; 103. outer sleeve; 104. inner sleeve; 2. fixing mechanism; 201. mounting box; 202. operating rod; 203. extrusion block; 204. mounting frame; 205. extrusion rod; 206. extrusion plate; 207. plug block; 208. clamping strip; 209. slide groove; 210. slider; 211. first telescopic spring; 212. mounting groove; 213. moving plate; 214. teeth; 215. toothed disc; 216. plug plate; 217. rotating rod; 3. limiting assembly; 301. clamping block; 302. supporting frame; 303. limiting rod; 304. operating plate; 305. push rod; 306. fixing tube; 307. second telescopic spring. DETAILED DESCRIPTION

[0026] 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 implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0027] See also Figure 1-6 The utility model provides a technical solution: a gear sleeve with a long service life, comprising an internal gear 1, an inner gear ring 101 is arranged inside the internal gear 1, and a disc end face 102 is arranged on one side of the inner gear ring 101, and an outer sleeve 103 is arranged on the inner side of the disc end face 102, and an inner sleeve 104 is arranged on the inner side of the outer sleeve 103; fixing mechanisms 2 are symmetrically arranged inside the two sides of the outer sleeve 103, and a limit position assembly 3 is arranged inside the fixing mechanism 2;

[0028] Among them, the fixing mechanism 2 includes a mounting box 201 symmetrically mounted inside the outer sleeve 103, and an operating rod 202 is slidably connected inside one end of the mounting box 201, and an extrusion block 203 is mounted on one end of the operating rod 202, and a mounting frame 204 is fixedly connected to one side of the mounting box 201, and an extrusion rod 205 is slidably connected inside one side of the mounting box 201, and an extrusion plate 206 is fixedly connected to one end of the extrusion rod 205, and the extrusion plate 206 is located inside the mounting frame 204 and is slidably connected, and an insert block 207 is mounted on one side of the extrusion plate 206, and a clamping strip 208 is welded to the outside of the inner sleeve 104, and the clamping strip 208 is slidably connected to the inside of the outer sleeve 103, and the insert block 207 is plugged into the clamping strip 208, so that the connection and separation between the inner sleeve 104 and the outer sleeve 103 can be quickly realized, and The design of multiple groups of plug blocks 207 can greatly improve the connection stability between the inner sleeve 104 and the outer sleeve 103, without the need for complex thread matching and rotation operations, thereby improving the maintenance efficiency and service life of the device and reducing maintenance costs. The interior of the installation frame 204 is symmetrically provided with slide grooves 209, and sliders 210 are symmetrically installed at both ends of the extrusion plate 206. The sliders 210 are located inside the slide grooves 209 for sliding connection, and a first telescopic spring 211 is arranged between the slider 210 and the inside of the slide groove 209. The movement of the extrusion plate 206 drives the slider 210 to slide inside the slide groove 209. At this time, the slider 210 squeezes the first telescopic spring 211. The reset property of the first telescopic spring 211 can assist the subsequent movement of the extrusion plate 206, which is convenient for the secondary fixation of the plug block 207, bringing convenience to the staff when using it.

[0029] The outer sleeve 103 is symmetrically provided with a mounting groove 212 inside, and a movable plate 213 is slidably connected between the mounting box 201 and the mounting groove 212, and one end of the movable plate 213 is fixedly connected to the extrusion block 203, and one side of the movable plate 213 is installed with teeth 214, and a toothed disc 215 is rotatably connected inside the mounting groove 212, and the teeth 214 and the toothed disc 215 are meshed and connected, and an insert plate 216 is symmetrically slidably connected inside the mounting groove 212, and one end of the insert plate 216 is plugged into the card strip 208, and a rotating rod 217 is rotatably connected to the side of the toothed disc 215 away from the center, and one end of the rotating rod 217 is rotatably connected to the insert plate 216, so that the insert plate 216 is plugged into the card strip 208, so that the other end of the inner sleeve 104 can be limited, thereby further improving the connection stability between the inner sleeve 104 and the outer sleeve 103, bringing convenience to the staff when using it.

[0030] The limit assembly 3 includes a block 301 fixedly connected to one end of the operating rod 202, the block 301 is inserted inside one end of the installation box 201, and a support frame 302 is symmetrically installed inside one end of the installation box 201, and a limit rod 303 is slidably connected inside the support frame 302, and one end of the limit rod 303 is inserted between the block 301, and an operating plate 304 is installed on the outside of the limit rod 303, and a push rod 305 is installed on one end of the operating plate 304, and a fixed tube 306 is installed on one side of the inner side of the support frame 302 , and one end of the push rod 305 passes through the fixed tube 306 for sliding connection, and a second telescopic spring 307 is arranged inside the fixed tube 306. The tension generated by the second telescopic spring 307 makes one end of the limit rod 303 plug into the block 301, so as to achieve the effect of quickly fixing and limiting the adjusted operating rod 202, avoiding the phenomenon of the operating rod 202 being offset due to external force factors, greatly reducing the phenomenon of the inner sleeve 104 and the outer sleeve 103 falling off, and bringing convenience to the staff when using it.

[0031] Working principle: Before using this long-life gear sleeve, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 6 As shown, by inserting the inner sleeve 104 into the outer sleeve 103, the clamping strip 208 and the outer sleeve 103 are adapted to be installed, and the extrusion block 203 is driven to slide inside the installation box 201 by pressing the operating rod 202. At this time, the extrusion block 203 squeezes the extrusion rod 205, thereby driving the extrusion plate 206 to slide inside the installation frame 204. At this time, multiple groups of plug blocks 207 are plugged into the clamping strip 208, so that the connection and separation between the inner sleeve 104 and the outer sleeve 103 can be quickly realized, and the arrangement of multiple groups of plug blocks 207 The design can greatly improve the connection stability between the inner sleeve 104 and the outer sleeve 103, without the need for complex thread matching and rotation operations, thereby improving the maintenance efficiency and service life of the device and reducing the maintenance cost. The movement of the extrusion plate 206 drives the slider 210 to slide inside the slide groove 209. At this time, the slider 210 squeezes the first telescopic spring 211. The reset property of the first telescopic spring 211 can assist the subsequent movement of the extrusion plate 206, which is convenient for the secondary fixation of the plug block 207, bringing convenience to the staff when using it.

[0032] The movement of the extrusion block 203 drives the moving plate 213 to slide inside the installation groove 212. At this time, the teeth 214 engage to drive the toothed disc 215 to rotate. The rotation of the toothed disc 215 drives the rotating rod 217 to rotate in a circular trajectory, and then the rotating rod 217 drives the plugging plate 216 to slide inside the installation groove 212, so that the plugging plate 216 is plugged into the card strip 208, so that the other end of the inner sleeve 104 can be limited, so as to further improve the connection stability between the inner sleeve 104 and the outer sleeve 103, which brings convenience to the staff when using;

[0033] After the adjustment of the operating rod 202 is completed, the block 301 is plugged into the installation box 201, and the staff pushes the operating plate 304 to drive the push rod 305 and the limit rod 303 to move. At this time, one end of the push rod 305 is located in the fixed tube 306 and slides, so that the second telescopic spring 307 is squeezed and contracted, and by loosening the operating plate 304, the tension generated by the second telescopic spring 307 makes one end of the limit rod 303 plugged into the block 301, so that the adjusted operating rod 202 can be quickly fixed and limited, avoiding the phenomenon of the operating rod 202 being offset due to external force factors, greatly reducing the phenomenon of the inner sleeve 104 and the outer sleeve 103 falling off, and bringing convenience to the staff when using it.

[0034] The internal gear 1, the inner gear ring 101, the disc end face 102, the outer sleeve 103 and the inner sleeve 104 are in the prior art. Publication No. CN215172073U discloses a reducer internal gear sleeve, and the devices used therein are not described in detail here.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gear sleeve with a long service life, comprising an internal gear (1), wherein an inner gear ring (101) is arranged inside the internal gear (1), a disc end surface (102) is arranged on one side of the inner gear ring (101), an outer sleeve (103) is arranged on the inner side of the disc end surface (102), and an inner sleeve (104) is arranged on the inner side of the outer sleeve (103); It is characterized in that Also includes: The fixing mechanisms (2) are symmetrically arranged inside the two sides of the outer shaft sleeve (103), and a limiting component (3) is arranged inside the fixing mechanism (2); The fixing mechanism (2) comprises a mounting box (201) symmetrically mounted inside the outer sleeve (103), and an operating rod (202) is slidably connected inside one end of the mounting box (201), and an extrusion block (203) is mounted on one end of the operating rod (202), and a mounting frame (204) is fixedly connected to one side of the mounting box (201), and an extrusion rod (205) is slidably connected inside one side of the mounting box (201), and an extrusion plate (206) is fixedly connected to one end of the extrusion rod (205), and an insert block (207) is mounted on one side of the extrusion plate (206), and a clamping strip (208) is welded to the outer side of the inner sleeve (104), and the clamping strip (208) is slidably connected to the inner side of the outer sleeve (103), and the insert block (207) and the clamping strip (208) are plugged into each other.

2. The gear sleeve with long service life according to claim 1, characterized in that: The installation frame (204) is symmetrically provided with a slide groove (209) inside, and sliders (210) are symmetrically installed at both ends of the extrusion plate (206), and the sliders (210) are slidably connected inside the slide groove (209), and a first telescopic spring (211) is provided between the slider (210) and the inside of the slide groove (209).

3. The gear sleeve with long service life according to claim 1, characterized in that: The outer sleeve (103) is symmetrically provided with a mounting groove (212) inside, and a movable plate (213) is slidably connected between the mounting box (201) and the mounting groove (212), and one end of the movable plate (213) is fixedly connected to the extrusion block (203), and teeth (214) are installed on one side of the movable plate (213), and a toothed disc (215) is rotatably connected inside the mounting groove (212), and an inserting plate (216) is symmetrically slidably connected inside the mounting groove (212), and one end of the inserting plate (216) is plugged into the clamping strip (208), and a rotating rod (217) is rotatably connected to the side of the toothed disc (215) away from the center, and one end of the rotating rod (217) is rotatably connected to the inserting plate (216).

4. The gear sleeve with long service life according to claim 1, characterized in that: The limit assembly (3) comprises a clamping block (301) fixedly connected to one end of the operating rod (202), and a support frame (302) is symmetrically installed inside one end of the installation box (201), and a limit rod (303) is slidably connected inside the support frame (302), and one end of the limit rod (303) is plugged into the clamping block (301), and an operating panel (304) is installed on the outside of the limit rod (303), and a push rod (305) is installed on one end of the operating panel (304), and a fixed tube (306) is installed on one side of the inside of the support frame (302), and one end of the push rod (305) penetrates the fixed tube (306) for slidable connection, and a second telescopic spring (307) is arranged inside the fixed tube (306).

5. The gear sleeve with long service life according to claim 3, characterized in that: The teeth (214) are meshingly connected with the toothed disc (215).

6. The gear sleeve with long service life according to claim 4, characterized in that: The card block (301) is located inside one end of the installation box (201) for insertion.

7. The gear sleeve with long service life according to claim 1, characterized in that: The extrusion plate (206) is located inside the installation frame (204) and is slidably connected thereto.

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