Gearbox with gears on two sides in symmetrical transmission
By designing limit grooves, connecting shafts, connecting seats and torsion springs in the gearbox, the problem of loosening of fixing bolts is solved and the stability of the gearbox is improved.
Patent Information
- Application Number
- CN202422226681.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The fixing bolts of the existing gear box are easy to loosen after long-term use, affecting the stability of the gear box.
A gearbox with symmetrical transmission of double-sided gears is designed, which adopts structures such as limit slots, connecting shafts, connecting seats, torsion springs and rotating handles. The stable positioning of the fixing bolts is achieved through the cooperation of the limit slots and the rotation of the torsion springs and the connecting seat.
It effectively prevents the fixing bolts from loosening and improves the long-term use stability of the gearbox.
Smart Images
Figure CN223399196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gear boxes, in particular to a gear box with symmetrical transmission of double-sided gears. Background Art
[0002] Gearboxes are widely used, for example in wind turbines. They are a crucial mechanical component used extensively in wind turbines. Their primary function is to transfer the power generated by the wind rotor to the generator, allowing it to achieve the desired speed.
[0003] Gearboxes withstand the forces acting on the wind turbine rotor and the reaction forces generated by gear transmission. They must possess sufficient rigidity to withstand these forces and moments, prevent deformation, and ensure transmission quality. The design of the gearbox housing should be tailored to the layout of the wind turbine's power transmission, processing and assembly requirements, and ease of inspection and maintenance. With the rapid development of the gearbox industry, gearboxes are being used in a growing number of industries and businesses, and a growing number of companies are also expanding within the gearbox industry.
[0004] When the gearbox in the prior art is used, it is necessary to install the gearbox to the position where it needs to be used by means of bolts and bottom mounting ears. Since the bolts after installation do not have protective and limiting structures, the bolts are prone to loosening when the gearbox is used for a long time, affecting the stability of the gearbox during use.
[0005] In view of this, the present technical solution proposes a gearbox with symmetrical transmission of double-sided gears to better solve the above-mentioned problems. Utility Model Content
[0006] The technical solution adopted by the utility model is as follows: a gearbox with symmetrical transmission of gears on both sides, comprising a gearbox body and gearbox mounting ears installed at the front and rear ends below the gearbox body, wherein both sides of the gearbox mounting ears are provided with limit slots, and both sides of the gearbox mounting ears are threadedly connected with fixing bolts, and the bolt heads of the fixing bolts are located inside the limit slots;
[0007] A movable groove is provided on the side of the gear box mounting ear, and a connecting seat is rotatably installed inside the movable groove through a connecting shaft. A torsion spring is sleeved on the connecting shaft. A connecting plate is fixed on the connecting seat, and limiting ears are fixed on both sides of the connecting plate. The connecting plate and the limiting ears are fitted on the top of the gear box mounting ear;
[0008] A receiving groove is provided at the lower inner portion of the limiting ear, the internal thread of the limiting ear is connected to a threaded rod, and the threaded rod is inserted into the receiving groove, a rotating handle is fixed to the upper end of the threaded rod, and a positioning plate is provided at the bottom end of the threaded rod, which is inserted into the limiting groove and abuts against the bolt head of the fixing bolt.
[0009] In a preferred embodiment, threaded holes adapted to the fixing bolts are provided on both sides of the gear box mounting ears, and the fixing bolts are threadedly connected in the threaded holes, and the limiting grooves and the threaded holes are in a communicating structure.
[0010] In a preferred embodiment, the connecting shaft is fixedly connected to both sides of the connecting seat, and the other end of the connecting shaft is installed inside both sides of the movable groove through a bearing.
[0011] In a preferred embodiment, one end of the torsion spring is fixedly connected to the inner side wall of the movable groove, and the other end of the torsion spring is fixedly connected to the side of the connecting seat.
[0012] In a preferred embodiment, the connecting plate and the limiting ear are an integrated structure, and the limiting ear covers the top of the limiting groove.
[0013] In a preferred embodiment, a second threaded hole communicating with the receiving groove is provided inside the limiting ear, and the threaded rod is threadedly connected to the second threaded hole.
[0014] In a preferred embodiment, the outer diameter of the positioning plate is adapted to the inner diameters of the receiving slot and the limiting slot.
[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: it is easier to better position the fixing bolt in the limiting groove, so that the fixing bolt is not easy to loosen during long-term use, thereby increasing the stability of the gearbox body during use.
[0016] The gear box body is installed in the position required for use by first flipping the connecting plate and the limiting ear so that the connecting plate and the limiting ear are separated from the top of the gear box mounting ear. Then, the gear box body can be installed in the position required for use by cooperating with the fixing bolt and the gear box mounting ear. At this time, the connecting plate and the limiting ear are flipped and fit into the top of the gear box mounting ear so that the limiting ear covers the top of the limiting groove. Then, the rotating handle is turned so that the rotating handle drives the threaded rod and the positioning plate to move downward, and the positioning plate can be inserted into the limiting groove and abut against the bolt head of the fixing bolt. Since the positioning plate is inserted into the limiting groove, it is better to ensure that the connecting plate and the limiting ear are not easy to flip over, and with the cooperation of the connecting shaft, the connecting seat and the torsion spring, the stability of the limiting ear above the limiting groove can be increased, and the fixing bolt can be better positioned in the limiting groove, so that the fixing bolt is not easy to loosen during long-term use, thereby increasing the stability of the gear box body when in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of the utility model;
[0018] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of the middle A area;
[0019] Figure 3 This is a schematic diagram of the structure of the mounting ears and the limiting ears of the gear box of the present invention.
[0020] Markings in the figure: 1-gearbox body; 2-gearbox mounting ear; 3-limiting slot; 4-fixing bolt; 5-movable slot; 6-connecting shaft; 7-connecting seat; 8-torsion spring; 9-connecting plate; 10-limiting ear; 11-storage slot; 12-threaded rod; 13-rotating handle; 14-positioning plate. DETAILED DESCRIPTION
[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0022] The following will be combined Figure 1-Figure 3 A gearbox with symmetrical transmission of double-sided gears according to an embodiment of the present invention is described in detail.
[0023] refer to Figure 1 and 3 As shown, a gearbox with symmetrical transmission of double-sided gears includes a gearbox body 1 and gearbox mounting ears 2 installed at the front and rear of the lower side of the gearbox body 1. Limiting grooves 3 are provided on both sides of the gearbox mounting ears 2. Fixing bolts 4 are threadedly connected to both sides of the gearbox mounting ears 2, and the bolt heads of the fixing bolts 4 are located inside the limiting grooves 3. Threaded holes matching the fixing bolts 4 are provided on both sides of the gearbox mounting ears 2, and the fixing bolts 4 are threadedly connected in the threaded holes. The limiting grooves 3 and the threaded holes are connected.
[0024] refer to Figure 1-2 As shown, a movable groove 5 is opened on the side of the gear box mounting ear 2, and a connecting seat 7 is rotatably installed inside the movable groove 5 through a connecting shaft 6. The connecting shaft 6 is fixedly connected to both sides of the connecting seat 7, and the other end of the connecting shaft 6 is installed inside both sides of the movable groove 5 through a bearing. A torsion spring 8 is sleeved on the connecting shaft 6, one end of the torsion spring 8 is fixedly connected to the inner side wall of the movable groove 5, and the other end of the torsion spring 8 is fixedly connected to the side of the connecting seat 7, a connecting plate 9 is fixed on the connecting seat 7, and limiting ears 10 are fixed on both sides of the connecting plate 9, and the connecting plate 9 and the limiting ears 10 are fitted on the top of the gear box mounting ear 2, the connecting plate 9 and the limiting ears 10 are an integrated structure, and the limiting ears 10 cover the top of the limiting groove 3.
[0025] refer to Figure 1 and 3 As shown, a receiving groove 11 is provided at the lower part of the interior of the limiting ear 10, and a threaded hole 2 is provided inside the limiting ear 10 to communicate with the receiving groove 11, and a threaded rod 12 is threadedly connected to the threaded hole 2. The interior of the limiting ear 10 is threadedly connected to the threaded rod 12, and the threaded rod 12 is inserted into the receiving groove 11, and a rotating handle 13 is fixed to the upper end of the threaded rod 12. A positioning plate 14 is provided at the bottom end of the threaded rod 12, which is inserted into the limiting groove 3 and abuts against the bolt head of the fixing bolt 4. The outer diameter of the positioning plate 14 is adapted to the inner diameter of the receiving groove 11 and the limiting groove 3.
[0026] The advantages of this application are: it is convenient to better position the fixing bolt 4 in the limiting groove 3, so that the fixing bolt 4 is not easy to loosen during long-term use, and the stability of the gear box body 1 during use is increased.
[0027] After the gearbox is installed in the desired position, the gearbox body 1 is installed in the desired position by turning the connecting plate 9 and the limiting ear 10 so that the connecting plate 9 and the limiting ear 10 are separated from the top of the gearbox mounting ear 2. Then, the gearbox body 1 is installed in the desired position by turning the connecting plate 9 and the limiting ear 10 so that the limiting ear 10 covers the top of the limiting groove 3. Then, the rotating handle 13 is turned so that the rotating handle 13 drives the threaded rod 12 and the positioning plate 14 to move downward, and the positioning plate 14 can be inserted into the limiting groove 3 and abut against the bolt head of the fixing bolt 4. Since the positioning plate 14 is inserted into the limiting groove 3, it is better to ensure that the connecting plate 9 and the limiting ear 10 are not easy to turn over, and with the cooperation of the connecting shaft 6, the connecting seat 7 and the torsion spring 8, the stability of the limiting ear 10 limited above the limiting groove 3 can be increased, and the fixing bolt 4 can be better positioned in the limiting groove 3, so that the fixing bolt 4 is not easy to loosen during long-term use, thereby increasing the stability of the gearbox body 1 when in use.
[0028] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.
Claims
1. A gearbox with symmetrical transmission of double-sided gears, characterized by: The gearbox comprises a gearbox body (1) and gearbox mounting ears (2) mounted at the front and rear of the lower portion of the gearbox body (1), wherein both sides of the gearbox mounting ears (2) are provided with limiting grooves (3), and both sides of the gearbox mounting ears (2) are threadedly connected with fixing bolts (4), and the bolt heads of the fixing bolts (4) are located inside the limiting grooves (3); A movable groove (5) is provided on the side of the gearbox mounting ear (2), and a connecting seat (7) is rotatably installed inside the movable groove (5) via a connecting shaft (6), a torsion spring (8) is sleeved on the connecting shaft (6), a connecting plate (9) is fixed on the connecting seat (7), and limiting ears (10) are fixed on both sides of the connecting plate (9), wherein the connecting plate (9) and the limiting ears (10) are fitted on the top of the gearbox mounting ear (2); A receiving groove (11) is provided at the lower inner portion of the limiting ear (10), the inner thread of the limiting ear (10) is connected to a threaded rod (12), and the threaded rod (12) is inserted into the receiving groove (11), a rotating handle (13) is fixed to the upper end of the threaded rod (12), and a positioning plate (14) is provided at the bottom end of the threaded rod (12) for inserting into the limiting groove (3) and abutting against the bolt head of the fixing bolt (4).
2. The gearbox with symmetrical transmission of double-sided gears according to claim 1, characterized in that: Threaded holes adapted to the fixing bolts (4) are provided on both sides of the gear box mounting ears (2), and the fixing bolts (4) are threadedly connected in the threaded holes, and the limiting grooves (3) and the threaded holes are in a communicating structure.
3. The gearbox with symmetrical transmission of double-sided gears according to claim 1, characterized in that: The connecting shaft (6) is fixedly connected to both sides of the connecting seat (7), and the other end of the connecting shaft (6) is installed inside both sides of the movable groove (5) through bearings.
4. The gearbox with symmetrical transmission of double-sided gears according to claim 1, characterized in that: One end of the torsion spring (8) is fixedly connected to the inner side wall of the movable groove (5), and the other end of the torsion spring (8) is fixedly connected to the side of the connecting seat (7).
5. The gearbox with symmetrical transmission of double-sided gears according to claim 1, characterized in that: The connecting plate (9) and the limiting ear (10) are an integrated structure, and the limiting ear (10) covers the top of the limiting groove (3).
6. The gearbox with symmetrical transmission of double-sided gears according to claim 5, characterized in that: A second threaded hole communicating with the receiving groove (11) is provided inside the limiting ear (10), and the threaded rod (12) is threadedly connected in the second threaded hole.
7. The gearbox with symmetrical transmission of double-sided gears according to claim 1, characterized in that: The outer diameter of the positioning plate (14) is adapted to the inner diameters of the receiving groove (11) and the limiting groove (3).