A disc gear box for a heavy load tractor

Abstract

The utility model discloses a disc wheel gear box for big load tractor, it includes a hollow gear box body, one side of gear box body is provided with disc wheel hand wheel, and the center one side of disc wheel hand wheel is connected with the pivot, and the one end of pivot goes into the inside of gear box body, and the inside of gear box body is provided with first gear and second gear, and first gear is connected with pivot, and second gear is sleeved on disc wheel gear shaft and is connected with disc wheel gear shaft, and one end of disc wheel gear shaft projects gear box body and is connected with disc wheel gear ring. The utility model adopts the meshing transmission of different first gear and second gear, and can control disc wheel force within 300N through the reasonable setting of the tooth number ratio, and the gear box body is equipped with fixed part and extension, and the stability of whole structure during disc wheel process is ensured, and the contact part of pivot and gear box body is provided with sliding sleeve, and effectively reduces the rotation friction, and the retaining washer prevents the exit of pin shaft, and enhances the reliability and safety of transmission part.

Description

Technical Field

[0001] This utility model relates to the field of traction machines, and in particular to a turning gearbox for a heavy-duty traction machine. Background Technology

[0002] With the widespread use of high-rise buildings and heavy equipment, heavy-duty traction machines are increasingly used in elevators, lifting machinery, and other systems. The turning mechanism, as a key device for emergency rescue in the event of a power outage or malfunction of the traction machine, directly affects the efficiency and safety of the rescue. Currently, the turning mechanism design of heavy-duty traction machines generally suffers from problems such as excessive turning force and difficult operation, leading to increased rescue difficulty and potentially failing to meet national standards.

[0003] Existing turning gear systems typically have simple structures, low transmission efficiency, and lack effective force transmission optimization and stability design. During turning operations, issues such as jamming, pin disengagement, or insecure gearbox fixing can easily occur, hindering the smooth progress of rescue operations. Therefore, there is an urgent need for a turning gearbox with a reasonable structure, high transmission efficiency, stable installation, and low manufacturing cost to solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a turning gearbox for heavy-duty traction machines that can solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A heavy-duty traction machine's turning gearbox includes a hollow gearbox body. A turning handwheel is provided on one side of the gearbox body, and a rotating shaft is connected to the center side of the handwheel. One end of the rotating shaft extends into the interior of the gearbox body. A first gear and a second gear are provided inside the gearbox body. The first gear is sleeved on the rotating shaft and connected to it. The second gear is located below the first gear and meshes with it. The second gear is sleeved on a turning gear shaft and connected to it. The turning gear shaft passes through the gearbox body, and one end of the turning gear shaft extends out of the gearbox body and connects to a turning gear ring.

[0007] Preferably, the top of the gearbox body is provided with a fixing part, and the fixing part is provided with bolts for connecting with the base, the bolts passing through the fixing part.

[0008] Preferably, the gearbox body has an extension protruding from the gearbox body on the side away from the handwheel, the extension has a shaft hole through which the disc tooth shaft passes, and the extension is in communication with the gearbox body.

[0009] Preferably, a sliding sleeve is provided at the contact portion between the rotating shaft and the gearbox body, and the sliding sleeve is sleeved on the rotating shaft and abuts against the gearbox body.

[0010] Preferably, both the first gear and the handwheel are connected to the rotating shaft via pins.

[0011] Preferably, a retaining washer is provided on one side of the pin shaft near the first gear.

[0012] The beneficial effects of this utility model are as follows: This utility model uses a first gear and a second gear of different diameters for meshing transmission. By reasonably setting the gear ratio, the turning force can be controlled within 300N, far below the national standard requirement of 400N, greatly reducing the difficulty of rescue operation and improving rescue efficiency. The top of the gearbox body is equipped with a fixing part, which is firmly connected to the traction machine base by bolts; the extension part can be inserted into the turning hole of the base. This double fixing mechanism ensures the stability of the entire structure during turning, avoiding shaking or displacement, and ensuring the safety and reliability of the rescue process. The gearbox body of this utility model can be formed by casting, which reduces production costs and ensures the overall strength and durability of the gearbox body, making it suitable for long-term use under heavy load conditions. A sliding sleeve is provided at the contact point between the shaft and the gearbox body, effectively reducing rotational friction and making the turning operation smoother. At the same time, a stop washer is provided to prevent the pin from disengaging, enhancing the reliability and safety of the transmission components. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] The components include: gearbox body 1, handwheel 2, shaft 3, first gear 4, second gear 5, handwheel gear shaft 6, handwheel gear ring 7, pin 8, stop washer 9, fixing part 10, base 11, bolt 12, extension part 13, sliding sleeve 14, sliding sleeve body 141, and outer edge 142. Detailed Implementation

[0015] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0016] In the description of this utility model, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] like Figure 1As shown, this utility model provides a turning gearbox for a heavy-duty traction machine, comprising a hollow gearbox body 1. A turning handwheel 2 is provided on one side of the gearbox body 1, and a connecting part 21 is provided on the center side of the turning handwheel 2. The connecting part 21 is connected to a rotating shaft 3 via a pin 8, and one end of the rotating shaft 3 extends into the interior of the gearbox body 1. A first gear 4 and a second gear 5 are provided inside the gearbox body 1, and the diameter of the first gear 4 is smaller than the diameter of the second gear 5. The first gear 4 is sleeved on the rotating shaft 3 and is connected to the rotating shaft 3 via the pin 8. Further, a stop washer 9 is provided on the side of the pin 8 near the first gear 4 to hold the pin 8 in place and prevent the pin 8 from disengaging, thus providing a stop function. The second gear 5 is located below the first gear 4 and meshes with the first gear 4. The second gear 5 is sleeved on the turning gear shaft 6 and is connected to the turning gear shaft 6. The turning gear shaft 6 penetrates the gearbox body 1, and one end of the turning gear shaft 6 extends out of the gearbox body 1 and is connected to the turning gear ring 7. In use, the handwheel 2 of the trolley drives the shaft 3 to rotate, which in turn drives the first gear 4 and the second gear 5 to rotate, thereby causing the trolley gear shaft 6 and the trolley gear ring 7 to rotate, thus realizing the trolley rotation.

[0018] Furthermore, a fixing part 10 is provided on the top of the gearbox body 1. The fixing part 10 is used to connect with the base 11 of the traction machine. A bolt 12 is provided on the fixing part 10, and the bolt 12 passes through the fixing part 10 to connect the gearbox body 1 and the base 11. An extension 13 protruding from the gearbox body 1 is provided on the side of the gearbox body 1 away from the handwheel 2. The extension 13 has a shaft hole through which the disc gear shaft 6 passes, and the extension 13 communicates with the gearbox body 1. In use, the extension 13 of the gearbox body 1 is inserted into the turning hole of the base 11, and the fixing part 10 is connected to the base 1 using the bolt 12 to ensure the stability of the entire structure during turning and to facilitate better rescue.

[0019] A sliding sleeve 14 is provided at the contact part between the rotating shaft 3 and the gearbox body 1. The sliding sleeve 14 includes a sliding sleeve body 141 sleeved on the rotating shaft 3 and an outer edge 142 disposed outside the sliding sleeve body 141 and integrally connected with the sliding sleeve body 141. The outer edge 142 abuts against the gearbox body 1, which can make the rotation smoother.

[0020] This utility model employs a first gear 4 and a second gear 5 of different diameters for meshing transmission. By rationally setting the gear ratio, the turning force can be controlled within 300N, far below the national standard requirement of 400N, greatly reducing the difficulty of rescue operations and improving rescue efficiency. The top of the gearbox body 1 is provided with a fixing part 10, which is firmly connected to the traction machine base 11 by bolts 12; the extension part 13 can be inserted into the turning hole of the base. The double fixing mechanism ensures the stability of the entire structure during the turning process, avoids shaking or displacement, and ensures the safety and reliability of the rescue process.

[0021] The gearbox body 1 of this utility model can be formed by casting, which reduces production costs and ensures the overall strength and durability of the gearbox body, making it suitable for long-term use under heavy load conditions. A sliding sleeve 13 is provided at the contact part between the rotating shaft 3 and the gearbox body 1, which effectively reduces rotational friction and makes the turning operation smoother. At the same time, a stop washer 9 is provided to prevent the pin shaft 8 from coming out, which enhances the reliability and safety of the transmission components.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A turning gearbox for a heavy-duty traction machine, comprising a hollow gearbox body, characterized in that: A handwheel is provided on one side of the gearbox body. A rotating shaft is connected to the center side of the handwheel. One end of the rotating shaft extends into the interior of the gearbox body. A first gear and a second gear are provided inside the gearbox body. The diameter of the first gear is smaller than the diameter of the second gear. The first gear is sleeved on the rotating shaft and connected to the rotating shaft. The second gear is located below the first gear and meshes with the first gear. The second gear is sleeved on the rotating gear shaft and connected to the rotating gear shaft. The rotating gear shaft passes through the gearbox body and one end of the rotating gear shaft extends out of the gearbox body and connects to the rotating gear ring.

2. The turning gearbox for a heavy-duty traction machine according to claim 1, characterized in that: The top of the gearbox body is provided with a fixing part, and the fixing part is provided with bolts for connecting to the base, the bolts passing through the fixing part.

3. The turning gearbox for a heavy-duty traction machine according to claim 1, characterized in that: The gearbox body has an extension protruding from the gearbox body on the side away from the handwheel. The extension has a shaft hole through which the handwheel gear shaft passes, and the extension is connected to the gearbox body.

4. The turning gearbox for a heavy-duty traction machine according to claim 2, characterized in that: A sliding sleeve is provided at the contact portion between the rotating shaft and the gearbox body. The sliding sleeve is sleeved on the rotating shaft and abuts against the gearbox body.

5. The turning gearbox for a heavy-duty traction machine according to claim 1, characterized in that: Both the first gear and the handwheel are connected to the rotating shaft via pins.

6. The turning gearbox for a heavy-duty traction machine according to claim 5, characterized in that: A stop washer is provided on one side of the pin shaft near the first gear.

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