Cab lifting appliance
By designing a cab spreader that includes tracks, sling door frames and open and close hooks, the problem of frequent replacement of traditional slingers in mixed flow production is solved, and rapid adaptation and efficient lifting of cabs of different models is achieved.
Patent Information
- Application Number
- CN202422340680.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-24
AI Technical Summary
In mixed flow production, traditional cab spreaders need to replace different spreaders for different models. The switching process is time-consuming and labor-intensive and cannot meet the production rhythm of the commercial vehicle assembly line.
A cab sling including tracks, sling door frames and sling opening and closing mechanisms is designed. The sling opening and closing mechanism realizes flexible lifting of the cab through a walking car and a lifting mechanism. The sling opening and closing mechanism drives the hook to open and close in a vertical direction to adapt to the cab of different models.
This spreader can quickly adapt to different models, reduce labor costs, improve production efficiency, and meet the production rhythm of the commercial vehicle assembly line.
Smart Images
Figure CN222974688U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of automobile production lines, and particularly to a cab lifting device. Background Art
[0002] In the related art, traditional cab lifting devices can only be adapted to one vehicle model. When mixed-flow production is carried out, different cab lifting devices need to be replaced for different vehicle models. Switching different cab lifting devices is time-consuming and laborious, and cannot meet the production rhythm of the commercial vehicle general assembly line.
[0003] Therefore, it is necessary to design a new cab lifting device to overcome the above problems. Summary of the Utility Model
[0004] The present application provides a cab lifting device, which can solve the technical problems in the related art that different cab lifting devices need to be replaced for different vehicle models during mixed-flow production, switching different cab lifting devices is time-consuming and laborious, and cannot meet the production rhythm of the commercial vehicle general assembly line.
[0005] In a first aspect, an embodiment of the present application provides a cab lifting device, which includes: a track, a cab lifting device door frame, and a cab lifting device opening and closing mechanism. A traveling trolley is slidably installed on the track, and a lifting mechanism is connected to the traveling trolley; the cab lifting device door frame is installed at the bottom of the lifting mechanism; the cab lifting device opening and closing mechanism is fixed to the cab lifting device door frame, and both ends of the cab lifting device opening and closing mechanism are connected with hooks through chains. The cab lifting device opening and closing mechanism is configured to drive the hooks to move in an opening and closing manner along a direction perpendicular to the extension direction of the track.
[0006] Among them, the traveling trolley can slide along the extension direction of the track so that the cab can be hoisted to a set position, the lifting mechanism can move in the up and down direction so that the cab can be hoisted to a set height, the cab lifting device opening and closing mechanism can drive the hooks to move in an opening and closing manner along a direction perpendicular to the extension direction of the track, so that the cab fixture can hoist the cab with different opening degrees to adapt to different vehicle models. The hooks are connected to the cab lifting device opening and closing mechanism through the chains, so that the cab can swing on the cab lifting device, ensuring that the vehicle body can be accurately installed and preventing the deformation of the cab lifting device door frame. The cab lifting device has the advantages of low cost, convenient production and simple maintenance. The cab lifting device can reduce the labor cost of commercial vehicle mixed-flow production and improve production efficiency by setting an automatic control program.
[0007] In combination with the first aspect, in an embodiment, the cab lifting device opening and closing mechanism includes a base and a driving motor. The base is fixed to the cab lifting device door frame, the length direction of the base is perpendicular to the extension direction of the track, the driving motor is installed on the base, and drives the hooks to move in an opening and closing manner along the length direction of the base through a transmission chain.
[0008] Among them, the base is fixed to the hoist door frame, so that the base can slide to a set position along with the traveling trolley and move to a set height along with the lifting mechanism. At the same time, the driving motor drives the hook to open and close along the length direction of the base through the transmission chain, so that the cab hoist can lift the cab with different opening degrees to adapt to different vehicle models.
[0009] Combined with the first aspect, in an embodiment, connecting plates are installed at both ends of the base, the connecting plates are connected to the chain, and the driving motor drives the connecting plates through the transmission chain, so that the hook opens and closes along the length direction of the base.
[0010] Among them, the chain can be stably installed at both ends of the base through the connecting plate. The driving motor drives the connecting plate through the transmission chain, so that the hook moves along with the connecting plate opening and closing along the length direction of the base. At the same time, the contact area between the hook and the base is increased through the connecting plate to prevent the base from deforming due to excessive force during hoisting.
[0011] Combined with the first aspect, in an embodiment, the connecting plate connects the hook through two chains. Among them, the connecting plate can be set in a gate shape. The connecting plate is connected to the chain through a clamping plate. One end of the connecting plate is connected to the hook through two chains, and the other end of the connecting plate is connected to the hook through two steel wires, so that the connecting plate can be evenly stressed, ensuring that the hook can hoist stably and the cab can be accurately installed. In other embodiments, the number of chains can be set to one or more.
[0012] Combined with the first aspect, in an embodiment, the base includes two cross bars, the two cross bars are fixed to the hoist door frame, the driving motor is arranged between the two cross bars, and the connecting plates are installed at both ends of the two cross bars. Among them, the length directions of the two cross bars are perpendicular to the extension direction of the track, so that the cab hoist can open and close along the direction perpendicular to the extension direction of the track. The driving motor is connected with a synchronizer, and the synchronizer drives the transmission chain to run synchronously between the two cross bars and drives the connecting plate to open and close along the length direction of the base, so that the hook opens and closes along the length direction of the base.
[0013] In combination with the first aspect, in one embodiment, the lifting mechanism includes an electric hoist and a scissor lift. A steel structure is connected to the bottom of the traveling trolley. The electric hoist and the scissor lift are installed on the steel structure. The electric hoist is arranged on both sides of the scissor lift, and the sling door frame is fixedly arranged at the bottom of the scissor lift. Among them, the two electric hoists can control their lifting from both sides of the cab, and the scissor lift controls its lifting from the top of the cab. The scissor lift can ensure that the sling door frame is in a horizontal state, so that the cab is in a horizontal state. The two electric hoists and the scissor lift cooperate in hoisting to ensure the stable lifting of the cab during the lowering and installation process.
[0014] In combination with the first aspect, in one embodiment, the hook includes a boom and a support seat. The boom is connected to the support seat. The boom is connected to the sling opening and closing mechanism through the chain, and the support seat is provided with a hanging groove. Among them, the hanging groove is used for alignment and fixation of the cab before hoisting to ensure that the cab does not slip during hoisting. The boom is connected to the sling opening and closing mechanism through the chain to ensure that the cab can swing after hoisting, preventing the sling door frame from bending and deforming due to heavy load during hoisting.
[0015] In combination with the first aspect, in one embodiment, the boom includes two vertical rods and multiple connecting rods. The two vertical rods are connected by the multiple connecting rods, and the two vertical rods are connected to the support seat.
[0016] Among them, the two vertical rods are connected by the multiple connecting rods, making the structure of the boom simple and easy to adjust the width and length of the boom. The multiple connecting rods can be set as one connecting rod or two connecting rods or more connecting rods. The two vertical rods cooperate with the two chains to make the hook receive balanced force and can be stably fixed at both ends of the base. The support seat can be set as an L-shaped support block. The L-shaped support block is provided with the hanging groove, and the hanging groove can be set as an arc. The L-shaped support block can increase the contact area between the hook and the cab, making it easier for the cab sling to grab the cab. In other embodiments, the boom can be set as one vertical rod or multiple vertical rods, and the multiple vertical rods are connected by the multiple connecting rods.
[0017] In combination with the first aspect, in one embodiment, the spreader door frame includes a main frame and a sub-frame. The sub-frame is fixedly arranged on both sides of the main frame, and the main frame is provided with a spreader opening and closing mechanism. Among them, the main frame is provided with the spreader opening and closing mechanism and is used for hoisting cabs of different sizes. The sub-frame is provided with sling straps and is used for correcting the center of gravity of the cab, so that the cab spreader can hoist the cab along the direction perpendicular to the extension direction of the track, and at the same time finely adjust the center of gravity of the cab to ensure that the vehicle body can be accurately installed.
[0018] In combination with the first aspect, in one embodiment, the surface of the hook is coated with a polyurethane protective layer. Among them, the jib is vulcanized, and the surface of the hook is coated with a polyurethane protective layer to prevent the cab from being damaged by collision during hoisting, and at the same time extend the service life of the hook. In other embodiments, the hook can be covered with a polyurethane protective sleeve.
[0019] The beneficial effects brought by the technical solutions provided in the embodiments of the present application include:
[0020] By arranging a spreader opening and closing mechanism at the bottom of the lifting mechanism, the spreader opening and closing mechanism drives the hook to hoist the cab with different opening degrees, so that the cab spreader can adapt to different vehicle models, solving the technical problem in the related art that different cab spreaders need to be replaced for different vehicle models during mixed-flow production, and it is time-consuming and laborious to switch different cab spreaders, and the production rhythm of the commercial vehicle general assembly line cannot be met. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0022] Figure 1 It is a schematic structural diagram of a cab spreader provided by an embodiment of the present application;
[0023] Figure 2 It is a schematic structural diagram of a cab spreader provided by an embodiment of the present application at different opening degrees;
[0024] Figure 3 It is a schematic structural diagram of the lifting mechanism being closed provided by an embodiment of the present application;
[0025] Figure 4 It is a schematic structural diagram of the lifting mechanism being unfolded provided by an embodiment of the present application;
[0026] Figure 5 It is a schematic structural diagram of the spreader door frame provided by an embodiment of the present application;
[0027] Figure 6 Schematic structural diagram of the spreader opening and closing mechanism provided by the embodiment of the present application;
[0028] Figure 7 Schematic structural diagram of the hook provided by the embodiment of the present application.
[0029] In the figure: 1, traveling trolley; 2, lifting mechanism; 21, electric hoist; 22, scissor fork; 3, spreader door frame; 31, main frame; 32, sub-frame; 4, spreader opening and closing mechanism; 41, base; 411, cross bar; 42, drive motor; 43, transmission chain; 44, synchronizer; 5, chain; 6, hook; 61, boom; 611, vertical bar; 612, connecting rod; 62, support seat; 621, hanging groove; 7, connecting plate. Detailed implementation manners
[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0031] The embodiment of the present application provides a cab spreader, which can solve the technical problems that different cab spreaders need to be replaced for different vehicle models during mixed-flow production, and it is time-consuming and laborious to switch different cab spreaders, and the production rhythm of the commercial vehicle final assembly line cannot be met.
[0032] See Figure 1 and Figure 2 As shown in and, the embodiment of the present application provides a cab spreader, which includes: a track, a spreader door frame 3 and a spreader opening and closing mechanism 4. The track is slidably installed with a traveling trolley 1, and the traveling trolley 1 is connected with a lifting mechanism 2; the spreader door frame 3 is installed at the bottom of the lifting mechanism 2; the spreader opening and closing mechanism 4 is fixed to the spreader door frame 3, and both ends of the spreader opening and closing mechanism 4 are connected with a hook 6 through a chain 5. The spreader opening and closing mechanism 4 is configured to drive the hook 6 to move in an opening and closing manner along a direction perpendicular to the extension direction of the track.
[0033] In this embodiment, the walking trolley 1 can slide along the extension direction of the track, so that the cab can be hoisted to a set position. The lifting mechanism 2 can move in the vertical direction to hoist the cab to a set height. The spreader opening and closing mechanism 4 can drive the hook 6 to open and close in a direction perpendicular to the extension direction of the track, so that the cab fixture can hoist the cab with different opening degrees to adapt to different vehicle models. The hook 6 is connected to the spreader opening and closing mechanism 4 through the chain 5, so that the cab can swing on the cab spreader, ensuring that the vehicle body can be accurately installed and preventing the spreader door frame 3 from deforming. The cab spreader has the advantages of low cost, convenient production and simple maintenance. The cab spreader can reduce the labor cost of mixed-flow production of commercial vehicles by setting an automatic control program and improve production efficiency.
[0034] In this embodiment, by arranging the spreader opening and closing mechanism 4 at the bottom of the lifting mechanism 2, and the spreader opening and closing mechanism 4 driving the hook 6 to hoist the cab with different opening degrees, the cab spreader can adapt to different vehicle models, solving the technical problem in the related art that different cab spreaders need to be replaced for different vehicle models during mixed-flow production, which is time-consuming and laborious to switch different cab spreaders and cannot meet the production rhythm of the commercial vehicle general assembly line.
[0035] Further, referring to Figure 1 and Figure 6 As shown, in some embodiments, the spreader opening and closing mechanism 4 includes a base 41 and a driving motor 42. The base 41 is fixed to the spreader door frame 3. The length direction of the base 41 is perpendicular to the extension direction of the track. The driving motor 42 is installed on the base 41 and drives the hook 6 to open and close along the length direction of the base 41 through a transmission chain 43.
[0036] In this embodiment, the base 41 is fixed to the spreader door frame 3, so that the base 41 can slide to a set position with the walking trolley 1 and move to a set height with the lifting mechanism 2. At the same time, the driving motor 42 drives the hook 6 to open and close along the length direction of the base 41 through the transmission chain 43, so that the cab spreader can hoist the cab with different opening degrees to adapt to different vehicle models.
[0037] Further, referring to Figure 1 and Figure 6 As shown, in some embodiments, connecting plates 7 are installed at both ends of the base 41. The connecting plates 7 are connected to the chain 5. The driving motor 42 drives the connecting plates 7 through the transmission chain 43, so that the hook 6 opens and closes along the length direction of the base 41.
[0038] In this embodiment, the chain 5 can be stably installed at both ends of the base 41 through the connecting plate 7. The driving motor 42 drives the connecting plate 7 through the transmission chain 43, so that the hook 6 moves along with the connecting plate 7 as it opens and closes along the length direction of the base 41. At the same time, the contact area between the hook 6 and the base 41 is increased through the connecting plate 7, preventing the base 41 from deforming due to excessive force during hoisting.
[0039] Further, referring to Figure 1 、 Figure 6 and Figure 7 As shown, in some embodiments, the connecting plate 7 connects the hook 6 through two chains 5. In this embodiment, the connecting plate 7 can be set in a portal shape. The connecting plate 7 is connected to the chain 5 through a clamping plate. One end of the connecting plate 7 is connected to the hook 6 through two chains 5, and the other end of the connecting plate 7 is connected to the hook 6 through two steel wires, so that the connecting plate 7 can be evenly stressed, ensuring that the hook 6 can be hoisted stably and the cab can be accurately installed. In other embodiments, the number of the chains 5 can be set to one or more.
[0040] Further, referring to Figure 1 and Figure 6 As shown, in some embodiments, the base 41 includes two cross bars 411. The two cross bars 411 are fixed to the hoist door frame 3. The driving motor 42 is arranged between the two cross bars 411, and the connecting plates 7 are installed at both ends of the two cross bars 411. In this embodiment, the length direction of the two cross bars 411 is perpendicular to the extension direction of the track, so that the cab hoist can open and close along the direction perpendicular to the extension direction of the track. The driving motor 42 is connected with a synchronizer 44. The synchronizer 44 drives the transmission chain 43 to run synchronously between the two cross bars 411 and drives the connecting plate 7 to open and close along the length direction of the base 41, so that the hook 6 opens and closes along the length direction of the base 41.
[0041] Further, referring to Figure 1 、 Figure 3 and Figure 4 As shown, in some embodiments, the lifting mechanism 2 includes an electric hoist 21 and a scissor lift 22. A steel structure is connected to the bottom of the traveling trolley 1. The electric hoist 21 and the scissor lift 22 are installed on the steel structure. The electric hoist 21 is arranged on both sides of the scissor lift 22, and the hoist door frame 3 is fixedly arranged at the bottom of the scissor lift 22.
[0042] In this embodiment, the two electric hoists 21 can control the lifting of the cab from both sides, and the scissors fork 22 controls the lifting of the cab from the top. The scissors fork 22 can ensure that the hoist door frame 3 is in a horizontal state, thereby making the cab in a horizontal state. The two electric hoists 21 and the scissors fork 22 cooperate in lifting, which can ensure that the cab is lifted and lowered smoothly during the loading and unloading process.
[0043] Further, see Figure 2 and Figure 7 As shown, in some embodiments, the hook 6 includes a lifting arm 61 and a support seat 62, the lifting arm 61 and the support seat 62 are connected, the lifting arm 61 is connected to the lifting device opening and closing mechanism 4 through the chain 5, and the support seat 62 is provided with a lifting groove 621. In this embodiment, the lifting groove 621 is used to fix the cab before lifting to ensure that the cab does not slip during the lifting process, and the lifting arm 61 is connected to the lifting device opening and closing mechanism 4 through the chain 5 to ensure that the cab can shake after lifting, so as to prevent the lifting device door frame 3 from bending and deforming due to heavy load during the lifting process.
[0044] Further, see Figure 7 As shown, in some embodiments, the boom 61 includes two vertical rods 611 and a plurality of connecting rods 612 , the two vertical rods 611 are connected by the plurality of connecting rods 612 , and the two vertical rods 611 are connected to the support seat 62 .
[0045] In this embodiment, the two vertical rods 611 are connected by a plurality of connecting rods 612, so that the structure of the boom 61 is simple and the width and length of the boom 61 are easy to adjust. The plurality of connecting rods 612 can be set as one connecting rod 612 or two connecting rods 612 or more connecting rods 612. The two vertical rods 611 cooperate with the two chains 5 so that the hook 6 is balanced in force and can be stably fixed at both ends of the base 41. The support seat 62 can be set as an L-shaped support block, and the L-shaped support block is provided with the hanging groove 621, and the hanging groove 621 can be set as an arc. The L-shaped support block can increase the contact area between the hook 6 and the cab, so that the cab hoist can more easily grab the cab. In other embodiments, the boom 61 can be set as one vertical rod 611 or a plurality of vertical rods 611, and the plurality of vertical rods 611 are connected by a plurality of connecting rods 612.
[0046] Further, see Figure 1 and Figure 5As shown, in some embodiments, the spreader door frame 3 includes a main frame 31 and a sub-frame 32. The sub-frame 32 is fixedly arranged on both sides of the main frame 31, and the main frame 31 is provided with a spreader opening and closing mechanism 4. In this embodiment, the main frame 31 is provided with the spreader opening and closing mechanism 4 and is used for hoisting cabs of different sizes. The sub-frame 32 is provided with sling straps and is used for correcting the center of gravity of the cab, so that the cab spreader can hoist the cab along the direction perpendicular to the extension direction of the track, and at the same time finely adjust the center of gravity of the cab to ensure that the vehicle body can be accurately installed.
[0047] Further, referring to Figure 2 and Figure 7 As shown, in some embodiments, the surface of the lifting hook 6 is coated with a polyurethane protective layer. In this embodiment, the lifting arm 61 is vulcanized, and the surface of the lifting hook 6 is coated with a polyurethane protective layer to prevent the cab from being damaged by collision during hoisting, and at the same time extend the service life of the lifting hook 6. In other embodiments, the lifting hook 6 can be covered with a polyurethane protective sleeve.
[0048] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0049] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.
[0050] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A cab lifting device, characterized in that: It includes: A track, wherein a traveling trolley (1) is slidably mounted on the track, and the traveling trolley (1) is connected to a lifting mechanism (2); A sling door frame (3), wherein the sling door frame (3) is installed at the bottom of the lifting mechanism (2); A sling opening and closing mechanism (4), wherein the sling opening and closing mechanism (4) is fixed to the sling door frame (3), and both ends of the sling opening and closing mechanism (4) are connected to hooks (6) via chains (5), and the sling opening and closing mechanism (4) is configured to drive the hooks (6) to open and close along an extension direction perpendicular to the track.
2. The cab lifting device according to claim 1, characterized in that: The hoist opening and closing mechanism (4) comprises a base (41) and a driving motor (42); the base (41) is fixed to the hoist door frame (3); the length direction of the base (41) is perpendicular to the extension direction of the track; the driving motor (42) is installed on the base (41) and drives the hook (6) to open and close along the length direction of the base (41) through a transmission chain (43).
3. The cab lifting device according to claim 2, characterized in that: Connecting plates (7) are installed at both ends of the base (41), and the connecting plates (7) are connected to the chain (5). The driving motor (42) drives the connecting plates (7) through the transmission chain (43), so that the hook (6) opens and closes along the length direction of the base (41).
4. The cab lifting device according to claim 3, characterized in that: The connecting plate (7) is connected to the hook (6) via the two chains (5).
5. The cab lifting device according to claim 3, characterized in that: The base (41) comprises two cross bars (411), the two cross bars (411) are fixed to the hanger door frame (3), the driving motor (42) is arranged between the two cross bars (411), and the connecting plates (7) are installed at both ends of the two cross bars (411).
6. The cab lifting device according to claim 1, characterized in that: The lifting mechanism (2) comprises an electric hoist (21) and a scissor fork (22); the bottom of the walking trolley (1) is connected to a steel structure; the electric hoist (21) and the scissor fork (22) are installed on the steel structure; the electric hoist (21) is arranged on both sides of the scissor fork (22); and the bottom of the scissor fork (22) is fixedly provided with the sling door frame (3).
7. The cab lifting device according to claim 1, characterized in that: The hook (6) comprises a lifting arm (61) and a supporting seat (62), wherein the lifting arm (61) and the supporting seat (62) are connected, the lifting arm (61) is connected to the lifting device opening and closing mechanism (4) via the chain (5), and the supporting seat (62) is provided with a lifting groove (621).
8. The cab lifting device according to claim 7, characterized in that: The suspension arm (61) comprises two vertical rods (611) and a plurality of connecting rods (612); the two vertical rods (611) are connected via the plurality of connecting rods (612); and the two vertical rods (611) are connected to the support seat (62).
9. The cab lifting device according to claim 1, characterized in that: The hanger door frame (3) comprises a main frame (31) and a secondary frame (32), wherein the secondary frame (32) is fixedly arranged on both sides of the main frame (31), and the main frame (31) is installed with the hanger opening and closing mechanism (4).
10. The cab spreader according to claim 1, characterized in that: The surface of the hook (6) is coated with a polyurethane protective layer.