Gear reducer beneficial to lubricating oil filling

Abstract

The utility model relates to the technical field of gear speed reducers, and discloses a gear speed reducer beneficial for filling lubricating oil, which comprises a gear speed reducer, and an oil filling port is arranged at the top of an upper shell of the gear speed reducer; a top plate is mounted above an oil injection port of the gear reducer upper shell through bolts, a through port communicated with the oil injection port is formed in the top plate, a sealing plug is inserted into the through port, a connecting rod is fixedly connected to the bottom of the sealing plug, and a movable plate is fixedly connected to the bottom of the connecting rod. The outer side of the connecting rod is sleeved with a first spring, the top of the first spring is fixedly connected with the top plate, and the two ends of the sealing plug are fixedly connected with limiting blocks. According to the gear reducer beneficial to lubricating oil filling, lubricating oil enters the gear reducer through the movable plate through the oil penetrating holes, so that lubricating oil filling is facilitated, the upper shell of the gear reducer does not need to be detached, and the gear reducer is suitable for industrial scenes where lubricating oil needs to be frequently filled.

Description

Technical Field

[0001] This utility model relates to the field of gear reducer technology, specifically a gear reducer that is easy to lubricate. Background Technology

[0002] The gear reducer is an external meshing involute helical cylindrical gear reducer manufactured according to the national professional standard ZBJ19004. Gear reducers are widely used in East my country as slewing mechanisms for tower cranes and are widely applied in metallurgy, mining, hoisting, transportation, cement, construction, chemical, textile, printing and dyeing, and pharmaceutical industries.

[0003] Existing gear reducers typically use an upper and lower housing assembly. Adding lubricating oil to the gear reducer requires disassembling the upper housing, which is a rather cumbersome process. Therefore, there is an urgent need for a gear reducer that facilitates lubrication. Utility Model Content

[0004] The purpose of this invention is to provide a gear reducer that facilitates the addition of lubricating oil, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a gear reducer that facilitates the addition of lubricating oil, comprising a gear reducer, wherein an oil inlet is provided on the top of the upper housing of the gear reducer;

[0006] A top plate is bolted to the oil inlet of the upper housing of the gear reducer. The top plate has an opening that communicates with the oil inlet. A sealing plug is inserted into the opening. A connecting rod is fixedly connected to the bottom of the sealing plug. A movable plate is fixedly connected to the bottom of the connecting rod. A first spring is sleeved on the outside of the connecting rod. The top of the first spring is fixedly connected to the top plate. Limit blocks are fixedly connected to both ends of the sealing plug. Two limit seats are fixedly connected to the top of the top plate. A first sliding groove is opened on the inner side of each limit seat. A first slider is slidably arranged in each first sliding groove. A second spring is fixedly connected to one end of each first slider.

[0007] Preferably, one end of each of the second springs is fixedly connected to the inner wall of the first slide groove, and each of the limiting blocks is inserted into the limiting seat.

[0008] Preferably, a pull ring is fixedly connected to the top of the sealing plug, and an oil permeation hole is provided on the movable plate.

[0009] Preferably, an oil guide cylinder is fixedly connected to the bottom of the top plate, and the movable plate is slidably disposed inside the oil guide cylinder.

[0010] Preferably, the oil guide cylinder is provided with a filter screen inside, and a positioning ring is fixedly connected to the bottom of the filter screen.

[0011] Preferably, slots are provided at both ends of the positioning ring, and second sliding grooves are provided on the left and right inner walls of the oil guide cylinder. A second slider is slidably arranged in each second sliding groove, and a third spring is fixedly connected to one end of each second slider.

[0012] Preferably, one end of each of the third springs is fixedly connected to the inner wall of the second slide groove, and each of the second sliders is adapted to the slot.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] Firstly, in this utility model, the top of the upper housing of the gear reducer has an oil inlet, and a top plate is bolted to the top. The top plate has an opening into which a sealing plug is inserted. A connecting rod is connected to the bottom of the sealing plug, and a movable plate is located at the bottom of the connecting rod. A first spring is fitted around the outside of the connecting rod, and the top of the connecting rod is fixed to the top plate. Limit blocks are located at both ends of the sealing plug, and two limit seats are located on the top of the top plate. Each limit seat has a first sliding groove. After the sealing plug is inserted, the first sliding block, under the action of the second spring, locks the limit blocks, fixing the position of the sealing plug. When the sealing plug is opened to add lubricating oil, the first sliding block is manually moved to release the limit blocks. Locking the block, pulling the pull ring upwards pulls out the sealing plug, releasing the seal on the inlet and oil inlet, and then adding lubricating oil. Pulling the pull ring causes the first spring to contract, causing the movable plate to slide in the oil guide cylinder. The oil guide cylinder serves as a guide structure to ensure the stable movement of the movable plate, and also as a channel for lubricating oil, guiding the oil to flow to the gears inside the gear reducer. The movable plate has oil through holes, allowing lubricating oil to enter the gear reducer through the movable plate, thus facilitating the addition of lubricating oil without removing the upper housing of the gear reducer. This is suitable for industrial scenarios that require frequent lubrication.

[0015] Secondly, in this utility model, a filter screen and a positioning ring are installed inside the oil guide cylinder. The filter screen is used to prevent other impurities from entering when adding lubricating oil, and the positioning ring is used to fix the position of the filter screen. There are slots at both ends of the positioning ring. The inner wall of the oil guide cylinder has a second sliding groove and a second slider. A third spring causes the second slider to insert into the slot, fixing the positioning ring and the filter screen. When cleaning or replacing the filter screen, the top plate is removed, the sealing plug connecting rod and the bottom structure are pulled out, and the second slider is pressed to compress the third spring, causing the second slider to exit the slot, so that the filter screen can be removed for replacement or cleaning. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a schematic diagram of the front structure of the upper housing of the reducer of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a front view of the oil inlet structure of the reducer of this utility model.

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B.

[0021] The components are: 1. Gear reducer; 2. Top plate; 3. Sealing plug; 4. Connecting rod; 5. Movable plate; 6. First spring; 7. Limiting block; 8. Limiting seat; 9. First slider; 10. Second spring; 11. Oil guide cylinder; 12. Filter screen; 13. Positioning ring; 14. Second slider; 15. Third spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides the following technical solution:

[0024] Example 1

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A gear reducer that facilitates the addition of lubricating oil includes a gear reducer 1, wherein an oil inlet is provided on the top of the upper housing of the gear reducer 1;

[0026] A top plate 2 is bolted to the top of the oil inlet of the upper housing of the gear reducer 1. The top plate 2 has an opening that communicates with the oil inlet. A sealing plug 3 is inserted into the opening. A connecting rod 4 is fixedly connected to the bottom of the sealing plug 3. A movable plate 5 is fixedly connected to the bottom of the connecting rod 4. A first spring 6 is sleeved on the outside of the connecting rod 4. The top of the first spring 6 is fixedly connected to the top plate 2. Limiting blocks 7 are fixedly connected to both ends of the sealing plug 3. Two limiting seats 8 are fixedly connected to the top of the top plate 2. A first sliding groove is opened on the inner side of each limiting seat 8. A first slider 9 is slidably arranged in each first sliding groove. A second spring 10 is fixedly connected to one end of each first slider 9.

[0027] One end of each second spring 10 is fixedly connected to the inner wall of the first slide groove, and each limiting block 7 is inserted into the limiting seat 8.

[0028] A pull ring is fixedly connected to the top of the sealing plug 3, and an oil permeation hole is provided on the movable plate 5.

[0029] An oil guide cylinder 11 is fixedly connected to the bottom of the top plate 2, and the movable plate 5 is slidably disposed inside the oil guide cylinder 11.

[0030] Through the above technical solution, the upper housing of the gear reducer 1 has an oil inlet at the top, and a top plate 2 is bolted to the top. The top plate 2 has an opening, and a sealing plug 3 is inserted into the opening. The bottom of the sealing plug 3 is connected to a connecting rod 4, and the bottom of the connecting rod 4 has a movable plate 5. A first spring 6 is sleeved on the outside of the connecting rod 4, and the top of the connecting rod 4 is fixed to the top plate 2. There are limit blocks 7 at both ends of the sealing plug 3, and two limit seats 8 at the top of the top plate 2. Each limit seat 8 has a first sliding groove. After the sealing plug 3 is inserted, the first slider 9, under the action of the second spring 10, locks the limit block 7 and fixes the position of the sealing plug 3. When the sealing plug 3 is opened to add lubricating oil, the first slider is manually moved. 9. Release the lock of the limit block 7, pull the pull ring upward to pull out the sealing plug 3, release the seal on the through port and the oil inlet, and then add lubricating oil. When the pull ring is pulled, the first spring 6 will contract, causing the movable plate 5 to slide in the oil guide cylinder 11. The oil guide cylinder 11 can serve as a guide structure to ensure the stable movement of the movable plate 5, and at the same time, it serves as a channel for lubricating oil, guiding the oil to flow to the gears inside the gear reducer 1. The movable plate 5 has an oil passage hole, which allows lubricating oil to enter the gear reducer 1 through the movable plate 5, thus facilitating the addition of lubricating oil. It is not necessary to disassemble the upper shell of the gear reducer 1, which is suitable for industrial scenarios that require frequent lubrication.

[0031] Example 2

[0032] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 Furthermore, based on Example 1, the following is obtained: a filter screen 12 is provided inside the oil guide cylinder 11, and a positioning ring 13 is fixedly connected to the bottom of the filter screen 12.

[0033] The positioning ring 13 has slots at both ends, and the oil guide cylinder 11 has second sliding grooves on its left and right inner walls. A second slider 14 is slidably arranged in each second sliding groove, and a third spring 15 is fixedly connected to one end of each second slider 14.

[0034] One end of each third spring 15 is fixedly connected to the inner wall of the second slide groove, and each second slider 14 is adapted to the slot.

[0035] Through the above technical solution, a filter screen 12 and a positioning ring 13 are provided inside the oil guide cylinder 11. The filter screen 12 is used to prevent other impurities from entering when adding lubricating oil. The positioning ring 13 is used to fix the position of the filter screen 12. The positioning ring 13 has slots at both ends. The inner wall of the oil guide cylinder 11 has a second sliding groove and a second slider 14. A third spring 15 causes the second slider 14 to be inserted into the slot, fixing the positioning ring 13 and the filter screen 12. When cleaning or replacing the filter screen 12, the top plate 2 is removed, the sealing plug 3 is pulled out, the connecting rod 4 and the bottom structure are pulled out, the second slider 14 is pressed to compress the third spring 15, and the second slider 14 is disengaged from the slot, so that the filter screen 12 can be removed for replacement or cleaning.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gear reducer that facilitates the addition of lubricating oil, comprising a gear reducer (1), characterized in that: The gear reducer (1) has an oil inlet at the top of its upper housing; A top plate (2) is bolted to the top of the oil inlet of the gear reducer (1). The top plate (2) has an opening that communicates with the oil inlet. A sealing plug (3) is inserted into the opening. A connecting rod (4) is fixedly connected to the bottom of the sealing plug (3). A movable plate (5) is fixedly connected to the bottom of the connecting rod (4). A first spring (6) is sleeved on the outside of the connecting rod (4). The top of the first spring (6) is fixedly connected to the top plate (2). Limiting blocks (7) are fixedly connected to both ends of the sealing plug (3). Two limiting seats (8) are fixedly connected to the top of the top plate (2). A first sliding groove is opened on the inner side of each limiting seat (8). A first slider (9) is slidably arranged in each first sliding groove. A second spring (10) is fixedly connected to one end of each first slider (9).

2. The gear reducer for easy lubrication according to claim 1, characterized in that: One end of each of the second springs (10) is fixedly connected to the inner wall of the first groove, and each of the limiting blocks (7) is inserted into the limiting seat (8).

3. A gear reducer that facilitates the addition of lubricating oil according to claim 1, characterized in that: The top of the sealing plug (3) is fixedly connected with a pull ring, and the movable plate (5) is provided with an oil permeation hole.

4. A gear reducer that facilitates the addition of lubricating oil according to claim 1, characterized in that: The bottom of the top plate (2) is fixedly connected to an oil guide cylinder (11), and the movable plate (5) is slidably disposed inside the oil guide cylinder (11).

5. A gear reducer that facilitates the addition of lubricating oil according to claim 4, characterized in that: The oil guide cylinder (11) is equipped with a filter screen (12), and a positioning ring (13) is fixedly connected to the bottom of the filter screen (12).

6. A gear reducer that facilitates the addition of lubricating oil according to claim 5, characterized in that: The positioning ring (13) has slots at both ends, and the oil guide cylinder (11) has second sliding grooves on its left and right inner walls. Each second sliding groove has a second slider (14) slidably disposed therein, and each second slider (14) has a third spring (15) fixedly connected to one end.

7. A gear reducer that facilitates the addition of lubricating oil according to claim 6, characterized in that: One end of each of the third springs (15) is fixedly connected to the inner wall of the second groove, and each of the second sliders (14) is adapted to the slot.

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