Gear reducer

Abstract

The utility model provides a gear speed reducer, and relates to the technical field of speed reducers. The gear reducer comprises a reducer body, a threaded rod is in threaded connection with the interior of a threaded groove formed in the top of the reducer body, a lantern ring is arranged at the top end of the threaded rod, a sliding groove is formed in the inner wall of the threaded groove, a sliding groove cavity penetrates through the inner walls of the two sides of the threaded groove, the sliding groove cavity penetrates through the threaded groove, and a limiting rod is slidably connected with the interior of the sliding groove. The limiting rod transversely penetrates through a cavity of the threaded groove, a worm wheel and a worm which are connected in a meshed mode are rotationally connected to the inner wall of the sliding groove, and the limiting rod is sleeved with the worm wheel in a threaded mode. According to the gear reducer, the limiting rod is arranged, the threaded rod is transversely inserted into the limiting rod in a penetrating mode, in this way, rotation of the threaded rod is limited, the threaded rod is prevented from being disengaged from the threaded groove, the stability and safety of installation of the gear reducer can be effectively improved, and meanwhile the service life of the gear reducer can be prolonged through the fixing mode of the limiting rod.

Description

Technical Field

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

[0002] Gear reducers are generally used for low-speed and high-torque transmission equipment. Ordinary reducers for electric motors will also have several pairs of gears with the same principle to achieve the ideal deceleration effect. The ratio of the number of teeth of large and small gears is the transmission ratio. With the continuous development of the reducer industry, more and more companies are using reducers.

[0003] After extensive searching, it was found that: China Utility Model Patent Column: Announcement No. CN219712273U discloses a suspended gear reducer, which relates to the technical field of gear reducers. The suspended gear reducer includes a gear reducer body, the gear reducer body is internally threaded with a threaded rod, the threaded rod is rotatably connected to a supporting horizontal plate on the outside, the bottom of the supporting horizontal plate is fixedly connected to two vertical rods, and the bottom of the vertical rod is fixedly connected to a first magnetic block;

[0004] In the above scheme, the first magnetic block, the second magnetic block and the second protrusion coherent structure are all set to enhance the stability of the handle fixation, but the second protrusion is fixed by a spring, and the spring will be fatigued after long-term use, thereby weakening the spring elastic force, and the gear reducer will vibrate when used, which will cause the second protrusion to detach, thereby affecting the safety and stability of the gear reducer installation.

[0005] The stabilizing effect of this magnetic attraction method is not significant, and long-term use of the device will also cause the first magnetic attraction block and the second magnetic attraction block to demagnetize and weaken, thereby affecting the stability and safety of the gear reducer installation. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The purpose of the utility model is to provide a gear reducer to solve the above problems, so as to solve the problem of poor installation stability of the current gear reducer in the prior art.

[0008] (II) Technical solution

[0009] The utility model is implemented through the following technical scheme: a gear reducer, including a body, a threaded rod is threadedly connected in a threaded groove opened on the top of the body, a collar is arranged on the top of the threaded rod, a slide groove is formed on the inner wall of the threaded groove, the slide groove cavity passes through the inner walls on both sides of the threaded groove, and the slide groove cavity passes through the threaded groove, a limit rod is slidably connected in the slide groove, the limit rod transversely passes through the threaded groove cavity, a worm wheel and a worm screw which are meshed with each other are rotatably connected on the inner wall of the slide groove, the worm wheel thread sleeve is arranged on the outer side of the limit rod, and a through hole which is plug-connected with the limit rod is opened at the corresponding position of the threaded rod relative to the slide groove.

[0010] Preferably, a lifting plate is rotatably sleeved on the top of the threaded rod, a through-type mounting opening is provided on the top of the lifting plate, a bottom rod is slidably connected in the mounting opening, a rocking plate is fixedly connected to the top of the bottom rod, the top of the lifting plate is fixedly connected to the bottom of the ring, and a fixing groove which is plugged into the lifting plate is provided on the upper part of the machine body.

[0011] Preferably, a block distributed in a circular array is fixedly connected to the outer side of the bottom rod, a slot is opened at the top of the threaded rod, and a first block distributed in a circular array is fixedly connected to the inner wall of the slot, each of the first blocks is staggered with each block, and the circular trajectory of the first block movement coincides with the circular trajectory of the block movement, and the block and the first block are both around the outer side of the bottom rod.

[0012] Preferably, an installation groove is formed on the inner wall of the installation port, and a gear ring is rotatably connected to the inner wall of the installation groove, the gear ring is located directly above the threaded rod, and second blocks distributed in a circular array are fixedly connected to the inner wall of the gear ring, each of the second blocks is staggered with each block, and the circumferential trajectory of the second block movement coincides with the circumferential trajectory of the block movement, the second blocks surround the outer side of the bottom rod, and the gear ring is sleeved on the outer side of the bottom rod.

[0013] Preferably, a spur gear meshing with a gear ring is rotatably connected to the inner wall of the mounting groove, a connecting rod is fixedly connected to the axis at the bottom of the spur gear, a connecting groove slidably connected to the connecting rod is provided at the top of the worm, a conical groove is formed at the notch of the connecting groove, a through groove connected to the sliding groove is provided on the top of the body, and the top of the worm is rotatably connected to the cavity of the through groove.

[0014] Preferably, an adjustment groove slidably connected to the bottom end of the bottom rod is formed on the bottom wall inside the slot, a rotating plate is rotatably connected to the inner wall of the adjustment groove, and a spring is installed between the rotating plate and the bottom rod.

[0015] Preferably, a wire groove distributed in a circumferential array is provided on the outer side of the limit rod, and a wire rod is fixedly connected to the inner wall of the sliding groove at a corresponding position relative to each wire groove, and each wire rod is slidably connected to each wire groove.

[0016] The utility model provides a gear reducer, which has the following beneficial effects:

[0017] 1. The gear reducer is provided with a limit rod, which is used to laterally insert the threaded rod, thereby limiting the rotation of the threaded rod and limiting the threaded rod from being separated from the threaded groove, thereby effectively improving the stability and safety of the gear reducer installation. At the same time, the fixing method of the limit rod can increase its service life.

[0018] 2. The gear reducer is provided with a liftable bottom rod and a first block and a second block. The movement of the threaded rod or the limit rod can be adjusted by adjusting the position of the bottom rod, thereby making the stable installation of the gear reducer simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional stereoscopic schematic diagram of the utility model as a whole;

[0020] Figure 2 It is a cross-sectional three-dimensional schematic diagram of the body of the utility model;

[0021] Figure 3 It is a cross-sectional three-dimensional schematic diagram of the lifting plate of the utility model;

[0022] Figure 4 It is a three-dimensional schematic diagram of the threaded rod of the utility model;

[0023] Figure 5 It is a three-dimensional schematic diagram of the sleeve ring of the utility model;

[0024] Figure 6 It is a three-dimensional schematic diagram of the matching of the gear ring and the spur gear of the utility model;

[0025] Figure 7 It is a three-dimensional schematic diagram of the coordination of the worm wheel, the worm and the limiting rod of the utility model.

[0026]

Main component symbol description

[0027] 1. Machine body; 2. Threaded rod; 3. Ring; 4. Threaded groove; 5. Limit rod; 6. Worm gear; 7. Worm; 8. Perforation; 9. Lifting plate; 10. Block; 11. First block; 12. Gear ring; 13. Second block; 14. Spur gear; 15. Connecting rod; 16. Turn plate; 17. Bottom rod; 18. Connecting groove; 19. Slide groove. DETAILED DESCRIPTION

[0028] The embodiment of the utility model provides a gear reducer.

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , including a body 1, a threaded rod 2 is connected to the threaded groove 4 on the top of the body 1, a collar 3 is arranged on the top of the threaded rod 2, a slide groove 19 is formed on the inner wall of the threaded groove 4, the cavity of the slide groove 19 passes through the inner walls on both sides of the threaded groove 4, and the cavity of the slide groove 19 passes through the threaded groove 4, a limit rod 5 is slidably connected in the slide groove 19, the limit rod 5 passes through the cavity of the threaded groove 4 horizontally, a worm wheel 6 and a worm 7 meshing with each other are rotatably connected on the inner wall of the slide groove 19, the worm wheel 6 is threadedly sleeved on the outer side of the limit rod 5, and a through hole 8 connected to the limit rod 5 is opened at the corresponding position of the threaded rod 2 relative to the slide groove 19;

[0030] The threaded rod 2 is threadedly connected in the cavity of the thread groove 4. At this time, the cavity of the through hole 8 on the threaded rod 2 coincides with the cavity of the slide groove 19. Then the worm 7 is rotated, and the worm 7 drives the limit rod 5 to slide in the cavity of the slide groove 19 by the worm wheel 6, so that the limit rod 5 is inserted into the through hole 8, and the limit rod 5 is used to limit the movement of the threaded rod 2 in the thread groove 4;

[0031] The openings at both ends of the through hole 8 are formed with conical grooves, so that the end of the limiting rod 5 can be easily inserted into the hole cavity of the through hole 8.

[0032] See also Figure 3 The top of the threaded rod 2 is rotatably sleeved with a lifting plate 9, the top of the lifting plate 9 is provided with a through-type installation opening, a bottom rod 17 is slidably connected in the installation opening, a rocking plate is fixedly connected to the top of the bottom rod 17, the top of the lifting plate 9 is fixedly connected to the bottom of the collar 3, and a fixing groove is provided on the upper part of the body 1 to be plugged and connected to the lifting plate 9;

[0033] The fixing groove is used to stabilize the lifting plate 9, and the bottom rod 17 is driven to rotate by rotating and pressing the rocking plate.

[0034] See also Figure 4 and Figure 5 The outer side of the bottom rod 17 is fixedly connected with a stopper 10 distributed in a circumferential array, a slot is provided at the top of the threaded rod 2, and the inner wall of the slot is fixedly connected with a first stopper 11 distributed in a circumferential array, each first stopper 11 is staggered with each stopper 10, and the circumferential trajectory of the first stopper 11 coincides with the circumferential trajectory of the stopper 10, and the stopper 10 and the first stopper 11 are both around the outer side of the bottom rod 17;

[0035] By rotating the rocking plate, the rocking plate drives the bottom rod 17 to rotate, and makes the stopper 10 on the bottom rod 17 contact with the adjacent first stopper 11, so that the bottom rod 17 drives the threaded rod 2 to rotate by utilizing the cooperation between the stopper 10 and the first stopper 11, so that the threaded rod 2 is threadedly connected to the cavity of the thread groove 4.

[0036] See also Figure 5 and Figure 6 The inner wall of the mounting opening is formed with a mounting groove, and a gear ring 12 is rotatably connected to the inner wall of the mounting groove. The gear ring 12 is located directly above the threaded rod 2, and second blocks 13 distributed in a circumferential array are fixedly connected to the inner wall of the gear ring 12. Each second block 13 is staggered with each block 10, and the circumferential trajectory of the second block 13 coincides with the circumferential trajectory of the block 10. The second block 13 surrounds the outer side of the bottom rod 17, and the gear ring 12 is sleeved on the outer side of the bottom rod 17;

[0037] When the threaded rod 2 is completely threadedly connected to the cavity of the threaded groove 4, the position of the bottom rod 17 is adjusted so that the stopper 10 on the bottom rod 17 slides from the slot cavity into the interior of the gear ring 12, and then the bottom rod 17 is rotated so that the bottom rod 17 contacts the adjacent second stopper 13 using the stopper 10, and the bottom rod 17 drives the gear ring 12 to rotate.

[0038] See also Figure 3 and Figure 7 A spur gear 14 meshing with the gear ring 12 is rotatably connected on the inner wall of the mounting groove, a connecting rod 15 is fixedly connected to the axis at the bottom of the spur gear 14, a connecting groove 18 slidably connected to the connecting rod 15 is provided at the top of the worm 7, a conical groove is formed at the notch of the connecting groove 18, a through groove connected to the slide groove 19 is provided at the top of the body 1, and the top of the worm 7 is rotatably connected to the cavity of the through groove;

[0039] The rotation of the gear ring 12 drives the spur gear 14 to rotate, and the spur gear 14 drives the worm 7 to rotate via the connecting rod 15;

[0040] When installing the lifting plate 9, the end of the threaded rod 2 contacts the notch of the threaded groove 4, and the movable end of the connecting rod 15 is inserted into the cavity of the connecting groove 18; the horizontal cross-section of the connecting rod 15 is a hexagonal structure, and the horizontal cross-section of the connecting groove 18 is a hexagonal cavity; by setting the conical groove, the end of the connecting rod 15 can slide smoothly into the cavity of the connecting groove 18.

[0041] See also Figure 1 and Figure 5 An adjustment groove is formed on the bottom wall inside the slot and is slidably connected to the bottom end of the bottom rod 17. A rotating plate 16 is rotatably connected to the inner wall of the adjustment groove, and a spring is installed between the rotating plate 16 and the bottom rod 17;

[0042] The bottom rod 17 can be easily reset by the elastic force of the spring. When the threaded rod 2 is rotated, it is only necessary to press the rocking plate and rotate the rocking plate at the same time.

[0043] See also Figure 2 and Figure 7, a wire groove distributed in a circumferential array is opened on the outer side of the limit rod 5, and a wire rod is fixedly connected to the corresponding position of each wire groove on the inner wall of the slide groove 19, and each wire rod is slidably connected to each wire groove;

[0044] The arrangement of the wire groove and the wire rod is to limit the self-rotation of the limiting rod 5 in the cavity of the slide groove 19 and to enable the limiting rod 5 to slide stably in the slide groove 19 .

[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A gear reducer, comprising a body (1), characterized in that: The threaded groove (4) provided at the top of the machine body (1) is internally threadedly connected to a threaded rod (2), a collar (3) is provided at the top of the threaded rod (2), a slide groove (19) is formed on the inner wall of the threaded groove (4), a limit rod (5) is slidably connected in the slide groove (19), a worm wheel (6) and a worm (7) meshing with each other are rotatably connected on the inner wall of the slide groove (19), the worm wheel (6) is threadedly sleeved on the outer side of the limit rod (5), and a through hole (8) connected to the limit rod (5) is provided at a corresponding position of the threaded rod (2) relative to the slide groove (19).

2. A gear reducer according to claim 1, characterized in that: A lifting plate (9) is rotatably sleeved on the top of the threaded rod (2), a through-type installation opening is provided on the top of the lifting plate (9), a bottom rod (17) is slidably connected in the installation opening, a rocking plate is fixedly connected to the top of the bottom rod (17), the top of the lifting plate (9) is fixedly connected to the bottom of the collar (3), and a fixing groove is provided on the upper part of the machine body (1) for plugging and connecting with the lifting plate (9).

3. A gear reducer according to claim 2, characterized in that: The outer side of the bottom rod (17) is fixedly connected with a stopper (10) distributed in a circumferential array, the top of the threaded rod (2) is provided with a slot, the inner wall of the slot is fixedly connected with a first stopper (11) distributed in a circumferential array, each of the first stoppers (11) is staggered with each of the stoppers (10), and the circumferential trajectory of the first stoppers (11) coincides with the circumferential trajectory of the stoppers (10).

4. A gear reducer according to claim 3, characterized in that: The inner wall of the installation opening is formed with an installation groove, and a toothed ring (12) is rotatably connected to the inner wall of the installation groove. The toothed ring (12) is located directly above the threaded rod (2), and second blocks (13) distributed in a circumferential array are fixedly connected to the inner wall of the toothed ring (12). Each of the second blocks (13) is staggered with each block (10), and the circumferential trajectory of the second block (13) coincides with the circumferential trajectory of the block (10).

5. A gear reducer according to claim 4, characterized in that: A spur gear (14) meshing with the gear ring (12) is rotatably connected to the inner wall of the mounting groove, a connecting rod (15) is fixedly connected to the axis of the bottom of the spur gear (14), and a connecting groove (18) slidably connected to the connecting rod (15) is formed at the top of the worm (7).

6. The gear reducer according to claim 1, characterized in that: An adjusting groove is formed on the bottom wall inside the slot and is slidably connected to the bottom end of the bottom rod (17). A rotating plate (16) is rotatably connected to the inner wall of the adjusting groove. A spring is installed between the rotating plate (16) and the bottom rod (17).

7. The gear reducer according to claim 1, characterized in that: The outer side of the limit rod (5) is provided with wire grooves distributed in a circumferential array, and the inner wall of the slide groove (19) is fixedly connected with a wire rod at a position corresponding to each wire groove, and each wire rod is slidably connected to each wire groove.

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