Device for hoisting planet carrier
By combining the design support frame and the clamp arm, the synchronous action of the sleeve and the sliding plate is used to solve the problem of vertical axis and horizontal end surface during the lifting of the planet carrier, the stable lifting of the planet carrier is achieved, and the ground collision is avoided and risk of damage.
Patent Information
- Application Number
- CN202421060617.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The existing planet carrier hoisting devices are difficult to keep the axis of the planet carrier vertical and the end surface horizontal during lifting, translation and rolling, which makes it easy to bump with the ground when put down, increasing the risk of damage.
A device including a support frame, a fixed shaft, a sleeve, a clamp arm and a sliding disk is designed to transmit the tension of the hanging chain through the sleeve sliding along the fixed shaft, the clamp arm is hinged and rotated around the planetary frame and keep the planetary frame stable, the sliding disk and limit The synchronous rise of the position disc ensures the stable locking of the fixed shaft and the support frame, ensuring the stability of the planetary frame during the lifting process.
It effectively avoids the risk of collision with the ground when the planet carrier is lowered, ensures the vertical axis of the planet carrier and the horizontal end surface of the end surface, reduces the possibility of damage, and improves the safety and stability of the lifting process.
Smart Images
Figure CN222225716U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical assembly auxiliary equipment, in particular to a device for hoisting a planetary frame. Background Art
[0002] In the assembly process of planetary reducers, the lifting device plays a vital role. As the core component of the reducer, the planetary carrier is often heavy and large in size, and needs to be moved accurately and safely with the help of a lifting device. The importance of the lifting device lies in that it is not only a physical tool for moving the planetary carrier, but also the key to ensuring the smooth progress of the assembly process. The lifting device can ensure the stability and safety of the planetary carrier during the movement, avoiding potential damage and accidents. In addition, the lifting device can also ensure that the planetary carrier is accurately placed in the predetermined position, which is crucial to ensuring the overall performance of the reducer. At the same time, an efficient and stable lifting device can also improve assembly efficiency, reduce the time and difficulty of manual operation, and reduce production costs.
[0003] Existing lifting devices usually use a lifting rope or a lifting chain as the main lifting means. One end of the lifting rope or the lifting chain is fixed to the lifting hook, and the other end is connected to the planet carrier of the planetary reducer. In this way, the lifting hook can lift and move the planet carrier with the help of the pulling force of the lifting rope or the lifting chain.
[0004] However, in actual operation, due to the dynamics and uncertainty of the hoisting process, it is difficult to ensure that the planetary carrier always maintains the ideal state of vertical axis and horizontal end surface during lifting, translation and rollover. This non-ideal state often leads to unnecessary collision between the planetary carrier and the ground when it is lowered, thereby increasing the risk of damage to the planetary carrier and may even have a serious impact on its performance and accuracy. Summary of the invention
[0005] Aiming at the problem that the planetary frame is easily damaged by colliding with the ground when the planetary frame is lowered, the utility model provides a planetary frame hoisting device which can prevent the planetary frame from easily colliding with the ground and causing damage when the planetary frame is lowered.
[0006] In order to solve the above problems, the technical solution adopted by the utility model is a device for hoisting a planetary carrier, comprising a support frame, a fixed shaft is fixed on the support frame, a sleeve is sleeved on the outer wall of the fixed shaft, the sleeve can slide and lock along the axis of the fixed shaft, the outer wall of the sleeve is fixedly connected to one end of the lifting chain, the other end of the lifting chain is fixedly connected to one end of the clamp arm, the middle position of the clamp arm is hinged to the support frame, and the other end of the clamp arm is provided with a hook. When the sleeve slides upward along the fixed shaft, its movement is transmitted through the lifting chain, thereby pulling one end of the clamp arm. The clamp arm then rotates around the hinge in the middle, and the hook at the other end of the clamp arm accurately hooks the planetary carrier firmly. In this device, the action of the sleeve can ensure that all clamp arms respond synchronously, so in the process of hoisting the planetary carrier, whether it is lifting, translation or rollover, the planetary carrier can maintain a stable state with a vertical axis and a horizontal end surface. This greatly reduces the risk of collision with the ground when the planetary carrier is lowered, thereby effectively avoiding the possibility of damage to the planetary carrier.
[0007] Preferably, a limiting disk is fixed on the fixed shaft, and the limiting disk is located below the sleeve. A sliding disk is sleeved on the fixed shaft, and the sliding disk is located below the limiting disk. The sliding disk can slide along the axis of the fixed shaft, and the sliding disk is hooked to one end of a pull rod, and the other end of the pull rod is hinged to the sleeve. When the sleeve moves upward along the fixed shaft, the pull rod will hook the sliding disk, thereby ensuring that the sliding disk and the sleeve rise synchronously. Once the sliding disk is in close contact with the limiting disk, the sliding disk will serve as a force transmission point, effectively driving the fixed shaft and the supporting frame connected thereto to move upward together. This continuous action ultimately achieves a stable locking of the sleeve and the fixed shaft, ensuring that they maintain a synchronized and stable connection state at this time.
[0008] Preferably, the diameter of the upper end of the sliding disk is larger than the diameter of the lower end of the sliding disk, and a stepped surface is provided between the upper end of the sliding disk and the lower end of the sliding disk, and a hook 2 is fixed to the lower end of the pull rod, and the bending direction of the hook 2 is toward the fixed axis. When the sleeve moves upward, the lower end of the pull rod will gradually approach the axis of the fixed axis until the hook 2 is tightly abutted against the stepped surface, and this contact will effectively drive the sliding disk to move upward. When the sleeve starts to move downward, the lower end of the pull rod will gradually move away from the axis of the fixed axis, and at this time, the connection between the hook 2 and the sliding disk is gradually loosened, and finally separated from the sliding disk, which greatly facilitates the disassembly and assembly of the device.
[0009] Preferably, the clamp arm includes a rod 1 and a rod 2, wherein the rod 1 is located above the support frame, and the rod 2 is located below the support frame, and the angle between the rod 1 and the rod 2 is between 120° and 135°. The angle between the rod 1 and the rod 2 is maintained within the range of 120° to 135°, and the rotation angle of the rod 2 around its rotation point is increased by increasing the angle between the lifting chain and the axis of the fixed shaft, which makes the lifting process more flexible and can adapt to different lifting requirements.
[0010] Preferably, a connecting hole is provided on the rod 1, and the connecting hole can be fixedly connected to the lifting chain. The connecting hole ensures that the lifting chain can be easily and firmly fixedly connected to it, thereby ensuring the safety and stability of the lifting process.
[0011] Preferably, there are at least three connection holes, and all the connection holes are evenly distributed along the length direction of the rod 1. Providing multiple connection holes can meet the needs of different lifting scenarios and achieve flexible and changeable connection methods.
[0012] Preferably, the hook 1 is located at the lower end of the rod 2, and the bending direction of the hook 1 is the direction away from the fixed axis. The hook 1 can ensure that the planet carrier is firmly hooked and fixed.
[0013] Preferably, there are five clamping arms, and the five clamping arms are evenly distributed circumferentially with the center of the support frame as the center. The balanced layout of the five clamping arms can provide a more balanced clamping force, thereby more effectively clamping and fixing the planetary frame, ensuring the safety and stability of the lifting process.
[0014] Preferably, there are five pull rods, which are evenly distributed around the axis of the sleeve. The five pull rods can work together to ensure that the sliding plate is firmly pulled during the lifting process to prevent it from accidentally moving or sliding.
[0015] Preferably, a lifting lug is welded on the top of the sleeve, which ensures that the sleeve can be lifted stably and reliably, making the lifting operation more convenient and safer.
[0016] It can be seen from the above technical solutions that the advantage of the utility model is that when the sleeve slides upward along the fixed axis, its movement is transmitted through the lifting chain, thereby pulling one end of the clamping arm. The clamping arm then rotates around the hinge in the middle, and the hook at the other end of the clamping arm hooks the planetary carrier. At the same time, the upward movement of the sleeve also pulls the sliding plate upward synchronously through the pull rod. During the rising process, the sliding plate drives the fixed rod and the support frame to rise as a whole through the interaction with the limit plate. At this time, the hook can smoothly pull out the planetary carrier. In summary, in this device, the action of the sleeve can ensure that all clamping arms respond synchronously, so in the process of hoisting the planetary carrier, whether it is lifting, translation or tipping, the planetary carrier can maintain a stable state with a vertical axis and a horizontal end surface. This greatly reduces the risk of collision with the ground when lowering the planetary carrier, thereby effectively avoiding the possibility of damage to the planetary carrier. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a structural schematic diagram of a specific implementation mode of the utility model when it is not in working state.
[0019] Figure 2 It is a structural schematic diagram of a specific implementation mode of the utility model in working state.
[0020] Figure 3 It is a structural schematic diagram of a sliding disk in a specific implementation manner of the utility model.
[0021] Figure 4 It is a schematic diagram of the structure of the clamping arm in a specific implementation manner of the utility model.
[0022] Description of main reference numerals
[0023] In the figure: 1. support frame, 2. fixed shaft, 3. sleeve, 31. lifting ear, 32. limit plate, 33. pull rod, 4. planetary frame, 5. lifting chain, 6. round nut, 7. clamping arm, 71. rod 1, 711. connecting hole, 72. rod 2, 73. hook 1, 8. sliding plate, 81. step surface. DETAILED DESCRIPTION
[0024] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.
[0025] A device for hoisting a planetary carrier comprises a support frame 1, a fixed shaft 2 is fixed in the middle of the support frame 1, a sleeve 3 is sleeved on the fixed shaft 2, a lifting ear 31 is welded on the top of the sleeve 3, and the sleeve 3 can slide and lock along the axis of the fixed shaft 2. A clamping arm 7 is installed on the support frame 1, the middle position of the clamping arm 7 is hinged to the support frame 1, the upper end of the clamping arm 7 is clamped with one end of a lifting chain 5, the other end of the lifting chain 5 is fixedly connected to the outer wall of the sleeve 3, and a hook 73 is fixed on the lower end of the clamping arm 7, and the hook 73 can hook the planetary carrier 4.
[0026] like Figure 1 As shown, in this specific embodiment, the support frame 1 specifically adopts the following structure: the support frame 1 adopts a circular plate, a threaded hole is arranged in the middle position of the support frame 1, and a thread is arranged on the outer circumferential surface of the lower end of the fixed shaft 2, and the thread is adapted to the threaded hole on the support frame 1. In addition, a round nut 6 is arranged below the support frame 1, and the fixed shaft 2 can be conveniently fixed to the support frame 1 by rotating the round nut 6.
[0027] A limit plate 32 is provided on the fixed shaft 2, the limit plate 32 is located below the sleeve 3, and the limit plate 32 is fixed to the outer wall of the fixed shaft 2 by pins. Figure 3 As shown, a sliding plate 8 is also sleeved on the fixed shaft 2, and the sliding plate 8 is located below the limiting plate 32. A through hole is provided in the middle of the sliding plate 8, and the size of the through hole is adapted to the outer wall of the fixed shaft 2, that is, the sliding plate 8 can slide along the axis of the fixed shaft 2. The sliding plate 8 includes an upper end and a lower end. The diameter of the upper end of the sliding plate 8 is larger than the diameter of the lower end of the sliding plate 8, and a stepped surface 81 is provided between the upper end of the sliding plate 8 and the lower end of the sliding plate 8.
[0028] The sleeve 3 is provided with a pull rod 33, the upper end of the pull rod 33 is hinged to the outer wall of the sleeve 3 through a hinge shaft, and the lower end of the pull rod 33 is welded with a hook 2, the hook 2 is an L-shaped rod, and the bending direction of the hook 2 is toward the fixed axis 2. In this embodiment, a total of five pull rods 33 are provided, and the five pull rods 33 are evenly distributed around the axis of the sleeve 3, and accordingly, five hooks 2 are also provided.
[0029] The support frame 1 is provided with a groove, and a hinge shaft is installed inside the groove. In this embodiment, there are five grooves in total, and the five grooves are evenly distributed circumferentially with the center of the support frame 1 as the center. The clamping arm 7 is hinged to the support frame 1 through the hinge shaft in the groove. According to actual use, three clamping arms 7 or five clamping arms 7 can be installed.
[0030] like Figure 4 As shown, the clamp arm 7 includes a rod 1 71 and a rod 2 72, and the rod 1 71 and the rod 2 72 are processed as one piece. The rod 1 71 is located above the support frame 1, and the rod 2 72 is located below the support frame 1, and the angle between the rod 1 71 and the rod 2 72 is between 120° and 135°. A connecting hole 711 is provided on the rod 1 71, and the hanging chain 5 can be stuck in the connecting hole 711. The connecting holes 711 include at least three, and all the connecting holes 711 are evenly distributed along the length direction of the rod 1 71. In this embodiment, a total of five connecting holes 711 are provided. The hook 1 73 is located at the lower end of the rod 2 72, and the hook 1 73 is also an L-shaped rod. The bending direction of the hook 1 73 is the direction away from the fixed axis 2, and in this embodiment, the hook 1 73 and the rod 2 72 are processed as one piece.
[0031] The specific use process of the utility model is as follows: Figure 2As shown, first, the device is placed on the planet carrier 4. Under the action of gravity, the sleeve 3 naturally slides along the fixed shaft 2, and the lifting chain 5 is in a no-load state. Then, the angle of the clamp arm 7 is adjusted to ensure that the hook 1 73 can smoothly enter the inside of the planet carrier 4. Next, the sleeve 3 is gradually lifted through the lifting ear 31. As the sleeve 3 is lifted, the pull rod 33 gradually approaches the fixed shaft 2 due to its own weight, and the hook 2 also gradually moves closer to the fixed shaft 2 until it is in close contact with the stepped surface 81 of the sliding plate 8.
[0032] As the sleeve 3 continues to rise, the pull rod 33 pulls the sliding plate 8 to rise synchronously. When the sliding plate 8 rises to the position of the limit plate 32, the limit plate 32 will drive the fixed shaft 2 and the support frame 1 to rise synchronously. In this process, the sleeve 3 pulls the rod 1 71 of the clamp arm 7 through the lifting chain 5, so that it moves toward the fixed shaft 2, and the rod 2 72 moves away from the fixed shaft 2 accordingly. At this time, the hook 1 73 accurately hooks the planetary frame 4 to ensure the safety and stability of the lifting process.
[0033] When the sleeve 3 drives the support frame 1 to rise, the hooks 73 of the three or five clamp arms 7 have synchronously hooked the planetary frame 4, realizing the stable lifting of the planetary frame 4. In addition, all parts of the device can be easily disassembled and replaced, which greatly improves the applicability and flexibility of the device and meets different lifting requirements.
[0034] It can be seen from the above embodiments that the beneficial effect of the utility model is that when the sleeve slides upward along the fixed axis, its movement is transmitted through the lifting chain, thereby pulling one end of the clamping arm. The clamping arm then rotates around the hinge in the middle, and the hook at the other end of the clamping arm hooks the planetary carrier. At the same time, the upward movement of the sleeve also pulls the sliding plate upward synchronously through the pull rod. During the rising process, the sliding plate drives the fixed rod and the support frame to rise as a whole through the interaction with the limit plate. At this time, the hook can smoothly pull out the planetary carrier. In summary, in this device, the action of the sleeve can ensure that all clamping arms respond synchronously, so in the process of hoisting the planetary carrier, whether it is lifting, translation or tipping, the planetary carrier can maintain a stable state with a vertical axis and a horizontal end surface. This greatly reduces the risk of collision with the ground when lowering the planetary carrier, thereby effectively avoiding the possibility of damage to the planetary carrier.
[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A planet carrier hoisting device, characterized in that: The invention comprises a support frame (1), a fixed shaft (2) is fixed on the support frame (1), a sleeve (3) is sleeved on the outer wall of the fixed shaft (2), the sleeve (3) can slide along the axis of the fixed shaft (2) and be locked, the outer wall of the sleeve (3) is fixedly connected to one end of a lifting chain (5), the other end of the lifting chain (5) is fixedly connected to one end of a clamping arm (7), the middle position of the clamping arm (7) is hinged to the support frame (1), and the other end of the clamping arm (7) is provided with a hook (73).
2. The planet carrier hoisting device according to claim 1, characterized in that: A limit plate (32) is fixed on the fixed shaft (2), and the limit plate (32) is located below the sleeve (3). A sliding plate (8) is sleeved on the fixed shaft (2), and the sliding plate (8) is located below the limit plate (32). The sliding plate (8) can slide along the axis of the fixed shaft (2). The sliding plate (8) is hung on one end of a pull rod (33), and the other end of the pull rod (33) is hinged to the sleeve (3).
3. The planet carrier hoisting device according to claim 2, characterized in that: The diameter of the upper end of the sliding disk (8) is larger than the diameter of the lower end of the sliding disk (8), and a stepped surface (81) is provided between the upper end of the sliding disk (8) and the lower end of the sliding disk (8). A hook 2 is fixed to the lower end of the pull rod (33), and the bending direction of the hook 2 is towards the fixed axis (2).
4. The planet carrier hoisting device according to claim 1, characterized in that: The clamping arm (7) comprises a first rod (71) and a second rod (72), wherein the first rod (71) is located above the support frame (1), and the second rod (72) is located below the support frame (1), and an angle between the first rod (71) and the second rod (72) is between 120° and 135°.
5. The planet carrier hoisting device according to claim 4, characterized in that: The first rod (71) is provided with a connection hole (711), and the connection hole (711) can be fixedly connected to the hanging chain (5).
6. The planet carrier hoisting device according to claim 5, characterized in that: There are at least three connection holes (711), and all the connection holes (711) are evenly distributed along the length direction of the rod 1 (71).
7. The planet carrier hoisting device according to claim 4, characterized in that: The hook one (73) is located at the lower end of the rod two (72), and the bending direction of the hook one (73) is the direction away from the fixed axis (2).
8. The planet carrier hoisting device according to claim 4, characterized in that: There are five clamping arms (7), and the five clamping arms (7) are evenly distributed in the circumferential direction with the center of the support frame (1) as the center of the circle.
9. The planet carrier hoisting device according to claim 3, characterized in that: There are five pull rods (33), and the five pull rods (33) are evenly distributed around the axis of the sleeve (3).
10. The planet carrier hoisting device according to claim 1, characterized in that: A lifting lug (31) is welded to the top of the sleeve (3).