A heavy truck assembly plant frame turnover machine
By using a closed-loop sling system with an electric hoist and a tilting mechanism, along with limit protection, the problems of sling stability and multi-vehicle adaptability of heavy truck frame tilting machines have been solved, achieving safe and efficient frame tilting and improving the production efficiency of the final assembly workshop.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LANGQING INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-16
Smart Images
Figure CN224362427U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automobile assembly technology, and in particular relates to a chassis tilting machine for heavy truck assembly workshops. Background Technology
[0002] During the assembly of modern heavy trucks, according to the assembly process requirements, the front and rear axles need to be installed on the back of the chassis. After the installation is completed, the subsequent process requires the chassis to be rotated 180° and placed on the support fixture before the remaining parts are assembled.
[0003] Currently, most manufacturers use electric hoists for lifting and tilting. However, existing vehicle frame tilting machines have the following drawbacks during use: 1. The hooks used in existing slings have poor stability, and safety accidents such as sling loosening or slipping occur frequently during lifting; 2. Existing tilting machines do not have motion limiters, and the lifting action lacks effective protection; 3. Existing tilting machines cannot adapt to multiple vehicle models, limiting their application scenarios. Those skilled in the art urgently need to solve the above technical problems. Utility Model Content
[0004] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a chassis tilting machine for heavy truck assembly workshop.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A chassis tilting machine for heavy-duty truck assembly workshop, comprising:
[0007] A main steel frame, which is placed in the final assembly workshop, includes a rectangular frame with a crossbeam at the top center of the frame;
[0008] A set of electric hoists is installed on the crossbeam and can move along the length of the crossbeam. Hooks are installed on the slings of the electric hoists.
[0009] A set of tilting mechanisms, which are installed on the hook of the electric hoist, includes a lifting frame, sprocket, motor reducer, open chain and sling;
[0010] A lifting ring is provided on the lifting frame and is hung on the lifting hook;
[0011] The sprocket is rotatably mounted inside the lifting frame. A motor reducer that drives the sprocket to rotate is installed on one side of the lifting frame. A first notch and a second notch are provided at the bottom of the lifting frame. The open chain is wound around the sprocket, with one end passing through the first notch and the other end passing through the second notch.
[0012] Hooks are installed at both ends of the open chain, the sling is sleeved on the hooks, and the vehicle frame is mounted on the sling.
[0013] In a preferred embodiment of the present invention, a limit switch is further included. The limit switch includes a limit body mounted on the hanging frame and disposed at both ends of the first notch and the second notch, and a limit rod is installed at both ends of the open chain facing the limit body.
[0014] In a preferred embodiment of this utility model, the limiting body is installed on both sides of the hanging frame by an L-shaped sheet metal part.
[0015] In a preferred embodiment of the present invention, the hook includes a hook body with a slot, the open chain is embedded in the slot, and a through hole corresponding to the open chain is provided on one side of the hook body. The hook body is fixed by passing through the through hole and the open chain through a screw.
[0016] The hook body has two open arms with their openings facing each other. The hook body has a cavity for installing the open arms at the bottom. The hook body is connected to the open arms by a pin. The two open arms can be kept in a relatively open or closed state relative to the pin axis.
[0017] Keyways are provided on the two open hanging arms, and the keyways extend to the hook body. A flat key is inserted in the keyway to lock the two open hanging arms in an engaged state.
[0018] In a preferred embodiment of the present invention, two first protrusions are provided at one end of the hook body and the off-center chain, and an oblique angle is formed at the end of the first protrusion that contacts the open hanging arm to limit the opening angle of the open hanging arm.
[0019] In a preferred embodiment of this utility model, the open chain is configured as a double-row chain, and the sprocket is configured as a double-row sprocket.
[0020] In a preferred embodiment of this utility model, an anti-collision protection device is installed on the opposing surfaces of the two electric hoists.
[0021] In a preferred embodiment of the present invention, a plurality of anti-slip blocks are provided at equal intervals along the length of the surface on which the sling contacts the frame. Beneficial effects
[0022] This utility model relates to a chassis tilting machine for heavy truck assembly workshops. The hook design ensures the stability of the sling during the tilting process, effectively preventing the sling from loosening or slipping, thus improving the safety of the tilting operation. At the same time, it can quickly complete the installation and disassembly of the sling, improving operational efficiency.
[0023] This utility model, through the coordinated work of an electric hoist and a tilting mechanism, can quickly complete the tilting task of the vehicle frame, greatly reducing the time required for tilting and improving the production efficiency of the final assembly workshop.
[0024] This utility model uses an electric hoist to move and adjust the lifting position, and in conjunction with a closed-loop lifting system driven by sprockets and chains, it can achieve multi-angle rotation of the frame to adapt to the assembly requirements of different frame specifications; it is designed with double limit protection to prevent chain overtravel and electric hoist collision. Attached Figure Description
[0025] Figure 1 A front view of a heavy-duty truck frame tilting machine provided by this utility model;
[0026] Figure 2 A left view of a heavy-duty truck frame tilting machine provided by this utility model;
[0027] Figure 3 A partial front view of a chassis tilting machine in a heavy truck assembly workshop, provided by this utility model;
[0028] Figure 4 A partial structural left view of a heavy truck frame tilting machine provided by this utility model;
[0029] Figure 5 This is a partial structural schematic diagram of the flipping mechanism described in this utility model;
[0030] Figure 6 This is a schematic diagram of the structure of the hook described in this utility model.
[0031] In the diagram: 1. Main steel frame; 11. Frame; 12. Crossbeam.
[0032] 2 electric hoists;
[0033] 3. Tilting mechanism, 31. Hanging frame, 32. Sprocket, 33. Motor reducer, 34. Open chain, 35. Sling, 36. Hook, 361. Hook body, 362. Open hanging arm, 363. Protrusion;
[0034] 4 Limit switches, 41 Limit body, 42 Limit rod. Detailed Implementation
[0035] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0036] like Figure 1-6 As shown, this utility model provides a chassis tilting machine for heavy truck assembly workshops, comprising:
[0037] A main steel frame 1 is placed in the final assembly workshop, including a rectangular frame 11, with a crossbeam 12 at the top center of the frame 11.
[0038] A set of electric hoists 2 are installed on the aforementioned crossbeam 12 and can move along the length of the crossbeam 12. A hook is installed on the sling of the electric hoist 2.
[0039] A set of tilting mechanisms 3, which are installed on the hook of the electric hoist 2, includes a lifting frame 31, a sprocket 32, a motor reducer 33, an open chain 34, and a lifting strap 35;
[0040] A lifting ring is provided on the aforementioned lifting frame 31, which is hung on the aforementioned lifting hook;
[0041] The aforementioned sprocket 32 is rotatably mounted inside the hanging frame 31. A motor reducer 33 that drives the aforementioned sprocket 32 to rotate is mounted on one side of the hanging frame 31. A first notch and a second notch are provided at the bottom of the aforementioned hanging frame 31. The aforementioned open chain 34 is wound around the sprocket 32, with one end passing through the first notch and the other end passing through the second notch.
[0042] Hooks 36 are installed at both ends of the open chain 34, and the sling 35 is sleeved on the hooks 36, so that the sling 35 and the open chain 34 form a closed loop, and the vehicle frame is mounted on the sling 35.
[0043] The working principle and beneficial effects of the above embodiments are as follows:
[0044] The main frame 1 of this utility model is used to support the electric hoist 2, provide a running track for the electric hoist 2, facilitate the adjustment of the hoisting position, and adapt to the hoisting tasks of various specifications of the frame. The sling of the electric hoist 2 is equipped with a hook for connecting the tilting mechanism 3.
[0045] The lifting frame 31 is the main load-bearing component of the tilting mechanism 3. It is connected to the hook of the electric hoist 2 through the lifting ring. The motor reducer 33 is installed on one side of the lifting frame 31 to drive the sprocket 32 to rotate, thereby driving the open chain 34 to move. The lifting strap 35 is used to lift the frame. It is connected to the open chain 34 through the hook 36 to form a closed loop structure, ensuring that the frame will not fall off during the tilting process and improving safety.
[0046] This type of chassis tilting machine effectively improves the work efficiency of heavy truck assembly workshops, reduces the intensity of manual labor, and ensures the safety and reliability of the chassis tilting process.
[0047] In one embodiment,
[0048] It also includes a limit switch 4, which includes a limit body 41 installed on the hanging frame 31 and located at both ends of the first notch and the second notch, and a limit rod 42 installed at both ends of the open chain 34 facing the limit body 41.
[0049] The limiting body 41 is installed on the hanging frame 31 and is located at both ends of the first notch and the second notch. Its function is to sense or limit the movement range of the open chain 34. The limiting rod 42 is installed at both ends of the open chain 34 and faces the limiting body 41. When the chain moves to the limit position, the limiting rod 42 will trigger the limiting body 41, thereby stopping the operation of the motor reducer 33. By precisely controlling the movement range of the open chain 34, the frame is ensured to always be in a safe position during the flipping process.
[0050] In one embodiment,
[0051] The aforementioned limiting body 41 is installed on both sides of the hanging frame 31 by L-shaped sheet metal parts; the shape and structure of the L-shaped sheet metal parts enable them to withstand a certain torque and load, providing stable support for the limiting body 41; the design of the L-shaped sheet metal parts usually allows for a certain range of adjustment, which can be finely adjusted by bolts or other fasteners, thereby ensuring that the position of the limiting body 41 can be accurately matched with the limiting rod 42.
[0052] In one embodiment,
[0053] For example Figure 6 As shown, the hook 36 includes a hook body 361 with a slot on it. The open chain 34 is embedded in the slot. A through hole corresponding to the open chain 34 is opened on one side of the hook body 361. The hook body 361 is fixed to the open chain 34 by passing a screw through the through hole and the open chain 34.
[0054] The open chain 34 is embedded in the slot of the hook body 361. The two are fixed by a screw passing through the through hole and the open chain 34, ensuring that the connection between the open chain 34 and the hook body 361 is firm and can withstand the tension and torque generated during the flipping process.
[0055] Two open hanging arms 362 are provided, with their openings arranged opposite each other. A cavity for installing the open hanging arms 362 is provided at the lower part of the hook body 361. The hook body 361 is pin connected to the open hanging arms 362, and the two open hanging arms 362 can be kept in a relatively open or closed state relative to the pin axis.
[0056] Keyways are provided on the two open hanging arms 362. When the two open hanging arms 362 are in the engaged (closed) state, the keyways on the two open hanging arms 362 correspond to each other. A flat key is inserted in the keyway to lock the position of the two arms and ensure the stability of the sling 35 hanging on the hook 36. The keyways extend to the hook body 361 for easy installation.
[0057] The interlocking design of the two open arms 362 and the locking mechanism of the key ensure that the sling 35 is securely attached to the hook 36, effectively preventing safety accidents caused by the sling 35 loosening or slipping.
[0058] It should be noted that the hook 36 is made of high-strength metal material to ensure that it can withstand greater tensile and torque forces.
[0059] In one embodiment,
[0060] Two protrusions 363 are provided at one end of the hook body 361 and the back-separating chain 34. An angle is formed at the end of the protrusion 363 that contacts the open hanging arm 362 to limit the opening angle of the open hanging arm 362. Through the angled design, when the open hanging arm 362 is opened, the angle can play a limiting role to prevent the open hanging arm from opening too much, thereby ensuring that the hanging and disassembling process of the sling 35 is safer and more stable.
[0061] The aforementioned protrusion 363 is integrally formed with the hook body 361, thereby improving the overall structural strength.
[0062] In one embodiment;
[0063] The aforementioned open chain 34 is configured as a double-row chain, and the aforementioned sprocket 32 is configured as a double-row sprocket; the double-row chain design improves the load-bearing capacity and stability of the equipment, enabling it to better adapt to the high-load requirements of the heavy truck assembly workshop.
[0064] In one embodiment,
[0065] To prevent the two electric hoists 2 from colliding, anti-collision protection devices are installed on the opposite surfaces of the two electric hoists 2 to ensure that the approaching distance can be detected in time and the protection mechanism can be triggered during the movement of the electric hoists.
[0066] In one embodiment,
[0067] Multiple anti-slip blocks are provided at equal intervals along the length of the contact surface between the aforementioned sling 35 and the frame. The anti-slip blocks increase friction to ensure the frame remains stable during hoisting and flipping, reduce the risk of swaying and displacement, and protect the paint layer on the frame surface.
[0068] In summary:
[0069] This utility model relates to a chassis tilting machine for heavy truck assembly workshops. The hook design ensures the stability of the sling during the tilting process, effectively preventing the sling from loosening or slipping, thus improving the safety of the tilting operation. At the same time, it can quickly complete the installation and disassembly of the sling, improving operational efficiency.
[0070] This utility model, through the coordinated work of an electric hoist and a tilting mechanism, can quickly complete the tilting task of the vehicle frame, greatly reducing the time required for tilting and improving the production efficiency of the final assembly workshop.
[0071] This utility model uses an electric hoist to move and adjust the lifting position, and in conjunction with a closed-loop lifting system driven by sprockets and chains, it can achieve multi-angle rotation of the frame to adapt to the assembly requirements of different frame specifications; it is designed with double limit protection to prevent chain overtravel and electric hoist collision.
[0072] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The terms "front," "back," "left," and "right" used in the text are not specific and are mainly for more intuitive illustration of the technical solution, and do not constitute a limitation. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made according to the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A heavy truck assembly plant frame turnover machine, characterized in that: The utility model relates to a kind of steel frame for automobile body assembly, including A main body steel frame (1) is placed in assembly workshop, including cuboid frame (11), beam (12) is equipped in the middle of the top of frame (11); A group of electric hoist (2) is installed on the beam (12), and can be moved along the length direction of the beam (12), and there is a hook on the sling of the electric hoist (2); A group of turnover mechanism (3) is installed on the hook of the electric hoist (2), including hanging frame (31), sprocket (32), motor reducer (33), open chain (34) and sling (35); There is a lifting eye on the hanging frame (31), which is hung on the hook; The sprocket (32) is rotatably installed in the hanging frame (31), and a motor reducer (33) for driving the sprocket (32) to rotate is installed on one side of the hanging frame (31), and a first gap and a second gap are formed in the bottom of the hanging frame (31), and the open chain (34) is wound around the sprocket (32), one end of which passes through the first gap, and the other end passes through the second gap; Hooks (36) are installed at both ends of the open chain (34), and the sling (35) is sleeved on the hooks (36), and a vehicle frame is arranged on the sling (35).
2. The heavy truck assembly plant frame turnover machine of claim 1, wherein: It also includes a limit switch (4), which includes a limit body (41) installed on the hanging frame (31) and separately arranged at both ends of the first gap and the second gap, and a limit rod (42) is installed at both ends of the open chain (34) and faces the limit body (41).
3. The heavy truck assembly plant frame turnover machine of claim 2, wherein: The limit body (41) is installed on both sides of the hanging frame (31) by L-shaped sheet metal parts.
4. The heavy truck assembly plant frame turnover machine of claim 1, wherein: The hook (36) includes a hook body (361) having a slot formed therein, and the open chain (34) is embedded in the slot, a through hole corresponding to the open chain (34) is formed on one side of the hook body (361), and the hook body (361) is fixed by passing through the through hole and the open chain (34) with a screw rod. Two open hook arms (362) are provided, and the openings of the two open hook arms (362) are oppositely arranged, a cavity for mounting the open hook arms (362) is formed in the lower part of the hook body (361), and the hook body (361) is connected with the open hook arms (362) by pins, and the two open hook arms (362) can be kept in an open or closed state relative to the pin axis. Key grooves are formed in the two open hook arms (362), and the key grooves extend to the hook body (361), and a flat key is inserted into the key grooves to lock the two open hook arms (362) in the engaged state.
5. The heavy truck assembly plant frame turnover machine of claim 4, wherein: Two protrusions (363) are provided on the end of the hook body (361) away from the open chain (34), and an inclined angle is formed at the end of the protrusion (363) in contact with the open hook arm (362) to limit the opening angle of the open hook arm (362).
6. The heavy truck assembly plant frame turnover machine of claim 1, wherein: The open chain (34) is arranged as a double-row chain, and the sprocket (32) is arranged as a double-row sprocket.
7. The heavy truck assembly plant frame turnover machine of claim 1, wherein: Anti-collision protection devices are installed on the opposite surfaces of the two electric hoists (2).
8. The heavy truck assembly plant frame turnover machine of claim 1, wherein: A plurality of anti-slip blocks are provided on the contact surface of the sling (35) and the vehicle frame at equal intervals along the length direction.