Lifting appliance wheelbase adjusting device and vehicle production line

Abstract

According to the lifting appliance wheelbase adjusting device and the vehicle production line, the end, away from the second bearing part, of the second connecting rod is arranged to be movably connected with the mounting frame, so that movable connection between the second connecting arm and the mounting frame is achieved. When the axle distance is adjusted, the relative position of the end, away from the second bearing part, of the second connecting rod and the installation frame is adjusted, and the relative position between the second bearing part and the second connecting rod does not need to be adjusted. The influence of the gravity applied to the second bearing part by the chassis on the relative movement between the second connecting arm and the mounting frame can be avoided, the stability of the lifting appliance wheelbase adjusting device is improved, and the influence on the wheelbase adjustment of the lifting appliance can be effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle production, and in particular to a hanger wheelbase adjustment device and a vehicle production line. Background Art

[0002] During the vehicle production process, hoists are required to support vehicle components such as chassis lights.

[0003] In the related art, in order to improve the versatility of the spreader, a sliding structure is provided at the support block for supporting the chassis so that the support block can be moved to adjust the wheelbase of the spreader, thereby making the spreader suitable for the production of vehicles with different wheelbases.

[0004] However, since the support block bears the gravity of vehicle components such as the chassis for a long time, the connection between the support block and the sliding structure is prone to deformation, jamming and other problems, which affects the adjustment of the wheelbase of the spreader. Utility Model Content

[0005] An embodiment of the present application provides a spreader wheelbase adjustment device, which improves the stability of the spreader wheelbase adjustment device to at least partially solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned object, according to a first aspect of the present application, a spreader wheelbase adjustment device is provided, comprising:

[0007] The sling comprises a mounting frame, a first connecting arm and a second connecting arm,

[0008] The first connecting arm includes a first supporting portion and a first connecting rod, wherein the first supporting portion and the first connecting rod extend in different directions.

[0009] The second connecting arm includes a second supporting portion and a second connecting rod, and the second supporting portion and the second connecting rod extend in different directions.

[0010] The first supporting portion and the second supporting portion are used to support the chassis,

[0011] One end of the first connecting rod is connected to the mounting frame, and the other end of the first connecting rod is connected to the first supporting portion.

[0012] One end of the second connecting rod is movably connected to the mounting frame, and the other end of the second connecting rod is connected to the second supporting portion;

[0013] The adjustment mechanism includes a motion component and a linkage component that are connected to each other. The linkage component can be connected to the second connecting rod. The motion component can drive the linkage component and the second connecting rod to move, so that the second connecting arm moves relative to the first connecting arm to support chassis with different wheelbases.

[0014] Optionally, the hanger wheelbase adjustment device further includes:

[0015] A locking member connects one end of the second connecting rod and the mounting frame, and the locking member can be switched between a locked state and an unlocked state, wherein in the locked state, the locking member fixes the second connecting rod to the mounting frame, and in the unlocked state, the second connecting rod can move relative to the mounting frame.

[0016] Optionally, the locking member comprises a first clamping block and a second clamping block, and the first clamping block is movable relative to the second clamping block;

[0017] The first clamping block is movable toward the second clamping block so that the locking member is in the locking state, and the first clamping block and the second clamping block clamp the mounting frame;

[0018] The first clamping block can move away from the second clamping block so that the locking member is in the unlocked state, and at least one of the first clamping block and the second clamping block is spaced apart from the mounting frame.

[0019] Optionally, the locking member further comprises a clamping seat and an elastic member, the clamping seat is fixedly mounted on the second connecting rod, and the first clamping block is connected to the clamping seat via the elastic member;

[0020] In the locking state, the elastic member is deformed and provides a deformation restoring force so that the first clamping block and the second clamping block clamp the mounting frame;

[0021] In the unlocked state, at least one of the first clamping block and the second clamping block is spaced apart from the mounting frame.

[0022] Optionally, one of the second clamping block and the mounting frame is formed with a slide groove, and the other is formed with a slider, the slider is clamped in the slide groove, and the slider can move relative to the slide groove.

[0023] Optionally, the locking member is connected to one end of the second connecting rod, and the linkage assembly includes an unlocking member, and the unlocking member is connected to the motion assembly;

[0024] The moving component is suitable for driving the unlocking member to move to the locking member, and the unlocking member can enable the locking member to switch between the locked state and the unlocked state, wherein, in the locked state, the locking member fixes the second connecting rod and the mounting frame, and in the unlocked state, the locking member and the second connecting rod can both move relative to the mounting frame.

[0025] Optionally, the unlocking member comprises a push rod, and the push rod is connected to the motion assembly.

[0026] The push rod can move toward the elastic member to make the elastic member in a deformed state, and the push rod applies a thrust to the elastic member to offset the deformation restoring force of the elastic member;

[0027] The push rod can move away from the elastic member so that the elastic member and the push rod are spaced apart.

[0028] Optionally, the second connecting arm is provided with a plug hole, the linkage assembly includes a plug-in component, the first end of the plug-in component is connected to the moving component, and the moving component is suitable for driving the plug-in component to be inserted into the plug hole, so that the second connecting arm can move with the movement of the plug-in component.

[0029] Optionally, the second connecting arm further includes a connecting seat, the connecting seat is fixedly connected to the second connecting rod, and the connecting seat is formed with the plug-in hole.

[0030] Optionally, the linkage assembly includes a clamping member, the clamping member is connected to the motion assembly, the clamping member forms a clamping cavity, and the motion assembly is suitable for driving the clamping member to move toward the second connecting rod so that the second connecting rod is in the clamping cavity.

[0031] Optionally, the mounting frame includes a first crossbeam, an extension direction of the first crossbeam and an extension direction of the second connecting rod are perpendicular to each other, and the second connecting rod is slidably connected to the first crossbeam.

[0032] Optionally, the mounting frame comprises a second cross beam and a vertical beam, the second cross beam is spaced apart from the first cross beam, and the vertical beam is connected between the second cross beam and the first cross beam;

[0033] The second connecting rod is movably connected to the second cross beam, one end of the first cross beam is fixedly connected to the first connecting rod, and the other end of the first cross beam is fixedly connected to the vertical beam.

[0034] Optionally, the motion component includes a mobile driving member and a telescopic driving member, the telescopic driving member is connected to the mobile driving member, the linkage component is connected to the telescopic driving member, the mobile driving member is suitable for driving the telescopic driving member to move, and the telescopic driving member is suitable for driving the linkage component to telescope.

[0035] Optionally, there are two first connecting arms, and the adjustment mechanism is arranged on a side of one of the first connecting arms away from the other first connecting arm;

[0036] and / or,

[0037] The first supporting portion includes a supporting surface for supporting the chassis, and the adjustment mechanism is arranged on a side of the plane where the supporting surface is located facing the first connecting rod.

[0038] According to a second aspect of the present application, a vehicle production line is provided, comprising the hanger wheelbase adjustment device as described above.

[0039] In the wheelbase adjustment device of the sling of the embodiment of the present application, the movably connected second connecting arm and the mounting frame is realized by setting the end of the second connecting rod away from the second supporting part to be movably connected to the mounting frame. When adjusting the wheelbase, it is only necessary to adjust the relative position of the end of the second connecting rod away from the second supporting part and the mounting frame, without adjusting the relative position between the second supporting part and the second connecting rod. The gravity exerted by the chassis on the second supporting part can be prevented from affecting the relative movement between the second connecting arm and the mounting frame, thereby improving the stability of the sling wheelbase adjustment device and effectively preventing the wheelbase adjustment of the sling from being affected.

[0040] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0042] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0043] Figure 1 is a schematic diagram of the overall structure of a spreader wheelbase adjustment device provided in an exemplary embodiment of the present disclosure;

[0044] Figure 2 is a schematic structural diagram of a sling provided in an exemplary embodiment of the present disclosure;

[0045] Figure 3 is a partial structural schematic diagram of a sling provided in an exemplary embodiment of the present disclosure;

[0046] Figure 4 is one of the partial structural enlarged schematic diagrams of the spreader provided in the exemplary embodiment of the present disclosure;

[0047] Figure 5 is a second enlarged schematic diagram of a portion of the structure of the sling provided in an exemplary embodiment of the present disclosure;

[0048] Figure 6 is a schematic structural diagram of an adjustment mechanism provided in an exemplary embodiment of the present disclosure;

[0049] Figure 7 is a partial structural schematic diagram of an adjustment mechanism provided in an exemplary embodiment of the present disclosure;

[0050] Figure 8 yes Figure 7 A side view of the adjustment mechanism is shown.

[0051] Description of reference numerals:

[0052] 1. Lifting device; 11. Mounting frame; 12. First connecting arm; 13. Second connecting arm; 111. First crossbeam; 112. Second crossbeam; 113. Vertical beam; 121. First supporting part; 122. First connecting rod; 131. Second supporting part; 132. Second connecting rod; 133. Plug hole; 134. Connecting seat;

[0053] 2. Adjustment mechanism; 21. Movement component; 22. Linkage component; 211. Moving drive member; 212. Telescopic drive member; 221. Unlocking member; 222. Connecting member; 2211. Push rod;

[0054] 3. Locking member; 31. First clamping block; 32. Second clamping block; 33. Clamping seat; 34. Elastic member;

[0055] 4. Slider. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0057] This application provides a device for adjusting the wheelbase of a spreader. Figure 1 , Figure 2 and Figure 6 The hanger wheelbase adjustment device includes a hanger 1 and an adjustment mechanism 2.

[0058] The sling 1 includes a mounting frame 11, a first connecting arm 12 and a second connecting arm 13, the first connecting arm 12 includes a first supporting portion 121 and a first connecting rod 122, the first supporting portion 121 and the first connecting rod 122 extend in different directions, the second connecting arm 13 includes a second supporting portion 131 and a second connecting rod 132, the second supporting portion 131 and the second connecting rod 132 extend in different directions, the first supporting portion 121 and the second supporting portion 131 are used to support the chassis, one end of the first connecting rod 122 is connected to the mounting frame 11, the other end of the first connecting rod 122 is connected to the first supporting portion 121, one end of the second connecting rod 132 is movably connected to the mounting frame 11, and the other end of the second connecting rod 132 is connected to the second supporting portion 131;

[0059] The adjustment mechanism 2 includes a motion component 21 and a linkage component 22 that are connected to each other. The linkage component 22 can be connected to the second connecting rod 132. The motion component 21 can drive the linkage component 22 and the second connecting rod 132 to move, so that the second connecting arm 13 moves relative to the first connecting arm 12 to support chassis with different wheelbases.

[0060] It can be understood that when the wheelbase of the sling 1 is adjusted, the motion component 21 drives the linkage component 22 to move, so that the linkage component 22 is connected to the second connecting rod 132. At this time, the motion component 21 continues to drive the linkage component 22 to move, so that the linkage component 22 can drive the second connecting rod 132 to move relative to the mounting frame 11, and the second supporting part 131 moves with the movement of the second connecting rod 132, so that the distance between the second supporting parts 131 and the second supporting parts 131 changes, thereby realizing the adjustment of the wheelbase of the sling 1.

[0061] By setting the end of the second connecting rod 132 away from the second supporting portion 131 to be movably connected to the mounting frame 11, the movably connected second connecting arm 13 and the mounting frame 11 is realized. When adjusting the wheelbase, it is sufficient to adjust the relative position between the end of the second connecting rod 132 away from the second supporting portion 131 and the mounting frame 11, without adjusting the relative position between the second supporting portion 131 and the second connecting rod 132. It can prevent the gravity exerted by the chassis on the second supporting portion 131 from affecting the relative movement between the second connecting arm 13 and the mounting frame 11, thereby improving the stability of the sling wheelbase adjustment device and effectively preventing the wheelbase adjustment of the sling 1 from being affected.

[0062] It can be understood that the second supporting portion 131 and the second connecting rod 132 have different extension directions, and the second supporting portion 131 is used to support the chassis, which means that the extension direction of the second supporting portion 131 is horizontal, and the extension direction of the second connecting rod 132 should be vertical, and the second supporting portion 131 is at the end of the second connecting rod 132 away from the mounting frame 11, then the sliding connection position of the second connecting arm 13 and the mounting frame 11 should be located above the second supporting portion 131, and the gravity borne at the second supporting portion 131 will not affect the sliding connection between the second connecting arm 13 and the mounting frame 11.

[0063] It can be understood that the second connecting arm 13 is movably connected to the mounting frame 11 through a sliding structure, and the present application sets the sliding structure at a position where the second connecting rod 132 is far away from the second supporting portion 131. That is, at this time, the second connecting rod 132 is movably connected to the mounting frame 11, rather than the second supporting portion 131 and the second connecting rod 132, thereby preventing the gravity applied by the chassis to the second supporting portion 131 from affecting the sliding structure.

[0064] In the related art, the second supporting portion 131 is arranged to be movably connected to the second connecting rod 132 through a sliding structure. When the wheelbase of the sling 1 is adjusted, the second supporting portion 131 and the second connecting rod 132 are driven by a driving component to move relative to each other. When the gravity of the chassis causes deformation, sticking and other problems in the connection between the second supporting portion 131 and the sliding structure, the relative movement between the second supporting portion 131 and the second connecting rod 132 will also be affected, thereby affecting the wheelbase adjustment of the sling 1. However, the present application sets a sliding structure between the second connecting arm 13 and the mounting frame 11 at an end of the second connecting rod 132 away from the second supporting portion 131. The second supporting portion 131 does not move relative to the second connecting rod 132, but moves with the movement of the second connecting rod 132. Even if the connection between the second supporting portion 131 and the second connecting rod 132 is deformed, it will not affect the movement between the second connecting rod 132 and the mounting frame 11. The second supporting portion 131 can still move with the movement of the second connecting rod 132, and will not affect the wheelbase adjustment of the sling 1.

[0065] For some examples, see Figure 1 and Figure 2 The sling 1 includes at least two first connecting arms 12 and at least two second connecting arms 13, and the two first connecting arms 12 and the two second connecting arms 13 are arranged opposite to each other.

[0066] The number of the adjustment mechanism 2 can be one, that is, one adjustment mechanism 2 is used to adjust the positions of the two second connecting arms 13. The number of the adjustment mechanism 2 can also be two, two adjustment mechanisms 2 are arranged opposite to the two second connecting arms 13, and one adjustment mechanism 2 is used to adjust the position of one second connecting arm 13.

[0067] In some embodiments, the adjustment mechanism 2 is disposed above the second supporting portion 131 , so that the adjustment mechanism 2 is located above the chassis, thereby preventing the adjustment mechanism 2 from affecting the processing of the chassis.

[0068] In some embodiments, see Figure 2 and Figure 3 The sling wheelbase adjustment device also includes a locking member 3, which connects one end of the second connecting rod 132 and the mounting frame 11. The locking member 3 can be switched between a locked state and an unlocked state. In the locked state, the locking member 3 fixes the second connecting rod 132 to the mounting frame 11, and in the unlocked state, the second connecting rod 132 can move relative to the mounting frame 11.

[0069] It is understandable that when the wheelbase of the sling 1 needs to be adjusted, the locking member 3 is switched to the unlocked state, so that the adjustment mechanism 2 can drive the second connecting rod 132 to move relative to the mounting frame 11, and the second supporting portion 131 also moves accordingly, so that the second supporting portion 131 moves relative to the first supporting portion 121, thereby adjusting the wheelbase of the sling 1. After the wheelbase adjustment of the sling 1 is completed, the locking member 3 is switched to the locked state, so that the second connecting rod 132 cannot move relative to the mounting frame 11, so as to avoid the second supporting portion 131 from shifting in the process of supporting the chassis.

[0070] In some examples, the locking member 3 is, for example, a structural member with a clamping function, fixedly mounted on one of the second connecting rod 132 and the mounting frame 11, and capable of clamping the other. The locking member 3 may also be a fastener, which can be passed through the second connecting rod 132 and the mounting frame 11 to fixedly connect the second connecting rod 132 and the mounting frame 11.

[0071] In some examples, the locking member 3 may be installed on the second connecting rod 132 or on the mounting frame 11 .

[0072] In some examples, the locking member 3 is installed above the second connecting arm 13 .

[0073] In some examples, the locking member 3 can play the role of locking and sliding connection at the same time. For example, the locking member 3 includes a locking structure and a sliding structure. The locking member 3 is fixedly mounted on the second connecting rod 132, and the sliding structure is slidably connected to the mounting frame 11, so that the second connecting rod 132 can be movably connected to the mounting frame 11. The locking structure is connected to the second connecting rod 132 or the sliding structure, and moves with the movement of the second connecting rod 132. After the wheelbase adjustment is completed, the second connecting rod 132 and the mounting frame 11 are fixedly connected together by using the locking structure. Of course, the second connecting rod 132 can also be directly slidably connected to the mounting frame 11.

[0074] In some embodiments, see Figure 3 , Figure 4 and Figure 5 The locking member 3 includes a first clamping block 31 and a second clamping block 32, and the first clamping block 31 can move relative to the second clamping block 32;

[0075] The first clamping block 31 can move toward the second clamping block 32 so that the locking member 3 is in a locked state, and the first clamping block 31 and the second clamping block 32 clamp the mounting frame 11;

[0076] The first clamping block 31 can move away from the second clamping block 32 to put the locking member 3 in an unlocked state, and at least one of the first clamping block 31 and the second clamping block 32 is spaced apart from the mounting frame 11 .

[0077] It is understandable that when the wheelbase of the sling 1 needs to be adjusted, the first clamping block 31 is moved away from the second clamping block 32, and there is a gap between at least one of the first clamping block 31 and the second clamping block 32 and the mounting frame 11, so that the first clamping block 31 and the second clamping block 32 cannot clamp the mounting frame 11, and then the adjustment mechanism 2 can drive the second connecting rod 132 to move relative to the mounting frame 11 to adjust the wheelbase of the sling 1. After the wheelbase adjustment of the sling 1 is completed, the first clamping block 31 is moved to the second clamping block 32, and the first clamping block 31 and the second clamping block 32 are both in contact with the mounting frame 11, then the first clamping block 31 and the second clamping block 32 can clamp the mounting frame 11, so that the second connecting rod 132 and the mounting frame 11 cannot move relative to each other.

[0078] It can be understood that the first clamping block 31 and the second clamping block 32 are installed on the second connecting rod 132, so when the first clamping block 31 and the second clamping block 32 clamp the mounting frame 11, the second connecting rod 132 and the mounting frame 11 cannot move relative to each other. When the first clamping block 31 and the second clamping block 32 cannot clamp the mounting frame 11, the first clamping block 31, the second clamping block 32 and the second connecting rod 132 can move together relative to the mounting frame 11.

[0079] In some examples, the mounting frame 11 is located between the first clamping block 31 and the second clamping block 32 , and the first clamping block 31 and the second clamping block 32 can also limit the second connecting rod 132 .

[0080] In some embodiments, see Figure 3 , Figure 4 and Figure 5 The locking member 3 further includes a clamping seat 33 and an elastic member 34. The clamping seat 33 is fixedly mounted on the second connecting rod 132. The first clamping block 31 is connected to the clamping seat 33 via the elastic member 34.

[0081] In the locked state, the elastic member 34 is deformed and provides a deformation restoring force so that the first clamping block 31 and the second clamping block 32 clamp the mounting frame 11;

[0082] In the unlocked state, at least one of the first clamping block 31 and the second clamping block 32 is spaced apart from the mounting frame 11 .

[0083] It is understandable that when the wheelbase of the sling 1 needs to be adjusted, the elastic member 34 no longer applies a deformation recovery force to the first clamping block 31, or applies a force to the first clamping block 31 that can offset the deformation recovery force. When there is no deformation recovery force, the first clamping block 31 and the second clamping block 32 cannot clamp the mounting frame 11, and relative movement can occur between the second connecting rod 132 and the mounting frame 11. When the wheelbase of the sling 1 does not need to be adjusted, the deformation recovery force of the elastic member 34 will automatically drive the first clamping block 31 to move toward the second clamping block 32, so that the first clamping block 31 and the second clamping block 32 clamp the mounting frame 11. At this time, the locking member 3 automatically returns to the locked state, and relative movement cannot occur between the second connecting rod 132 and the mounting frame 11.

[0084] In some examples, the first clamping block 31 and the second clamping block 32 are installed on the clamping seat 33, and the first clamping block 31 and the second clamping block 32 are arranged relative to each other. At this time, the first clamping block 31, the second clamping block 32 and the clamping seat 33 form a limiting slot, and the mounting frame 11 cooperates with the limiting slot to make the connection between the second connecting arm 13 and the mounting frame 11 more stable.

[0085] In some examples, the elastic member 34 is, for example, a torsion spring.

[0086] In some embodiments, see Figure 3 and Figure 4 One of the second clamping block 32 and the mounting frame 11 is formed with a slide groove, and the other is formed with a slider 4, the slider 4 is clamped in the slide groove, and the slider 4 can move relative to the slide groove.

[0087] It can be understood that, through the cooperation of the slider 4 and the slide groove, the second clamping block 32 can slide relative to the mounting frame 11, that is, the second connecting arm 13 can slide relative to the mounting frame 11, and the arrangement of the slider 4 and the slide groove can make the relative movement between the second connecting arm 13 and the mounting frame 11 smoother. At the same time, the slide groove can limit the slider 4, so that the second clamping block 32 and the mounting frame 11 can remain connected, improving the stability of the connection between the second connecting arm 13 and the mounting frame 11, especially when the locking member 3 is in the unlocked state, through the clamping cooperation of the slider 4 and the slide groove, the second connecting arm 13 can remain connected to the mounting frame 11.

[0088] In some embodiments, see Figure 6 , Figure 7 and Figure 8 , the locking member 3 is connected to one end of the second connecting rod 132, the linkage assembly 22 includes an unlocking member 221, and the unlocking member 221 is connected to the motion assembly 21;

[0089] The moving component 21 is suitable for driving the unlocking member 221 to move to the locking member 3, and the unlocking member 221 can enable the locking member 3 to switch between a locked state and an unlocked state, wherein, in the locked state, the locking member 3 fixes the second connecting rod 132 and the mounting frame 11, and in the unlocked state, the locking member 3 and the second connecting rod 132 can both move relative to the mounting frame 11.

[0090] It is understandable that when the wheelbase of the spreader 1 needs to be adjusted, the motion component 21 is controlled to drive the unlocking member 221 to move to the locking member 3, and the state of the locking member 3 is switched to the unlocking state through the unlocking member 221, so that the motion component 21 drives the linkage component 22 and the second connecting rod 132 to move, and the wheelbase is adjusted; when the wheelbase of the spreader 1 does not need to be adjusted, the motion component 21 is controlled to drive the unlocking member 221 away from the locking member 3, so that the state of the locking member 3 is restored to the locked state, and the locking member 3 fixes the mounting frame 11 and the second connecting arm 13. Through the cooperation of the motion component 21 and the unlocking member 221, the automatic switching of the state of the locking member 3 can be achieved.

[0091] In some examples, when the locking member 3 is a fastener such as a screw, the unlocking member 221 may be a manipulator for turning the screw. When the locking member 3 is a structural member with a clamping function, the unlocking member 221 may be a structural member for controlling the opening and closing of the locking member 3. It should be noted that the structural form of the unlocking member 221 is not limited, and it can be used to switch the state of the locking member 3.

[0092] In some embodiments, see Figure 6 , Figure 7 and Figure 8 The unlocking member 221 includes a push rod 2211, and the push rod 2211 is connected to the motion component 21.

[0093] The push rod 2211 can move toward the elastic member 34 so that the elastic member 34 is in a deformed state, and the push rod 2211 applies a thrust to the elastic member 34 to offset the deformation restoring force of the elastic member 34;

[0094] The push rod 2211 can move away from the elastic member 34 so that the elastic member 34 and the push rod 2211 are spaced apart.

[0095] It can be understood that when the wheelbase of the sling 1 needs to be adjusted, the motion component 21 drives the connecting rod to move toward the elastic member 34, so that the push rod 2211 applies a thrust to the elastic member 34, and the direction of the thrust is opposite to the deformation restoring force of the elastic member 34, that is, the thrust can offset the deformation restoring force. In the absence of the deformation restoring force, the first clamping block 31 and the second clamping block 32 cannot clamp the mounting frame 11, that is, the locking member 3 and the second connecting rod 132 can both move relative to the mounting frame 11, and then the wheelbase of the sling 1 can be adjusted.

[0096] When there is no need to adjust the wheelbase of the sling 1, the motion component 21 drives the push rod 2211 away from the elastic member 34, so that the push rod 2211 no longer applies thrust to the elastic member 34. At this time, the deformation recovery force of the elastic member 34 will drive the first clamping block 31 to move toward the second clamping block 32. The first clamping block 31 and the second clamping block 32 clamp the mounting frame 11, so that the locking member 3 and the second connecting rod 132 cannot move relative to the mounting frame 11.

[0097] In some embodiments, see Figure 3 , Figure 7 and Figure 8 The second connecting arm 13 is provided with a plug hole 133, the linkage component 22 includes a connector 222, a first end of the connector 222 is connected to the motion component 21, and the motion component 21 is suitable for driving the connector 222 to be inserted into the plug hole 133, so that the second connecting arm 13 can move with the movement of the connector 222.

[0098] It is understandable that when the position of the second connecting arm 13 needs to be adjusted, the moving component 21 drives the plug-in component 222 to be inserted into the plug-in hole 133, and then the moving component 21 drives the plug-in component 222 to move, and the plug-in component 222 abuts against the inner wall surface of the plug-in hole 133 to drive the second connecting arm 13 to move together. The plug-in hole 133 can limit the plug-in component 222, ensuring the consistency of movement between the plug-in component 222 and the second connecting arm 13.

[0099] In some examples, the diameter of the plug hole 133 may be the same as the diameter of the connector 222 ; the diameter of the plug hole 133 may also be larger than the diameter of the connector 222 , so that the connector 222 is easier to insert into the plug hole 133 .

[0100] In some embodiments, see Figure 3 , Figure 7 and Figure 8 The second connecting arm 13 also includes a connecting seat 134 , which is fixedly connected to the second connecting rod 132 , and a plug-in hole 133 is formed on the connecting seat 134 .

[0101] It is understandable that the connection seat 134 with the plug hole 133 is fixedly installed on the second connecting rod 132, the connector 222 can drive the connection seat 134 to move, and the second connecting rod 132 moves with the connection seat 134, thereby adjusting the position of the second connecting arm 13.

[0102] It should be noted that the insertion hole 133 may also be directly formed on the second connecting rod 132 .

[0103] In some embodiments, the unlocking member 221 and the connector 222 can be connected to the same moving component 21, and the moving component 21 drives the unlocking member 221 and the connector 222 to move synchronously, that is, when the unlocking member 221 puts the locking member 3 in an unlocked state, the connector 222 is inserted into the plug hole 133, which can directly drive the second connecting arm 13 to move.

[0104] In some embodiments, the linkage assembly 22 includes a clamping member connected to the motion assembly 21, the clamping member forms a clamping cavity, and the motion assembly 21 is suitable for driving the clamping member to move toward the second connecting rod 132, so that the second connecting rod 132 is in the clamping cavity.

[0105] It can be understood that when the position of the second connecting arm 13 needs to be adjusted, the motion component 21 drives the clamping member to move toward the second connecting rod 132, so that the clamping member clamps the second connecting rod 132. At this time, the motion component 21 is used to drive the clamping member to move, so that the second connecting rod 132 can move with the clamping member, thereby adjusting the position of the second connecting arm 13.

[0106] When the clamping member is used to drive the second connecting rod 132 to move, the clamping member is moved to the second connecting rod 132 so that the second connecting rod is in the clamping cavity. That is, any position of the second connecting rod in the clamping cavity can enable the clamping member to drive the second connecting rod 132 to move.

[0107] In some examples, the clamping member includes a first clamping plate and a second clamping plate that are disposed opposite to each other, and a clamping cavity is formed between the first clamping plate and the second clamping plate.

[0108] In some examples, when the second connecting rod 132 is in the clamping cavity, the second connecting rod 132 may abut against the wall of the clamping cavity, or the second connecting rod 132 may be spaced apart from the wall of the clamping cavity.

[0109] In some embodiments, the unlocking member 221 and the clamping member can be connected to the same moving component 21, and the moving component 21 drives the unlocking member 221 and the clamping member to move synchronously. That is, when the unlocking member 221 puts the locking member 3 in an unlocked state, the second connecting rod 132 is in the clamping cavity, and can directly drive the second connecting arm 13 to move.

[0110] In some embodiments, see Figure 1 and Figure 2 The mounting frame 11 includes a first beam 111, the extension direction of the first beam 111 is perpendicular to the extension direction of the second connecting rod 132, and the second connecting rod 132 is slidably connected to the first beam 111. The first beam 111 can support the second connecting rod 132, thereby improving the stability of the second connecting rod 132.

[0111] It is understandable that both the mounting frame 11 and the first crossbeam 111 can support the second connecting rod 132 , thereby improving the stability of the connection between the second connecting rod 132 and the mounting frame 11 .

[0112] In some embodiments, see Figure 1 and Figure 2 The mounting frame 11 includes a second cross beam 112 and a vertical beam 113. The second cross beam 112 is spaced apart from the first cross beam 111, and the vertical beam 113 is connected between the second cross beam 112 and the first cross beam 111;

[0113] The second connecting rod 132 is movably connected to the second cross beam 112 , one end of the first cross beam 111 is fixedly connected to the first connecting rod 122 , and the other end of the first cross beam 111 is fixedly connected to the vertical beam 113 .

[0114] It is understandable that the first cross beam 111 is connected to the second cross beam 112 of the mounting frame 11 through the vertical beam 113, which improves the connection stability between the first cross beam 111 and the mounting frame 11. At the same time, the first cross beam 111 extends to be fixedly connected to the first connecting rod 122, further improving the stability of the first cross beam 111.

[0115] In some embodiments, see Figure 7 and Figure 8 The motion component 21 includes a mobile driving member 211 and a telescopic driving member 212. The telescopic driving member 212 is connected to the mobile driving member 211, and the linkage component 22 is connected to the telescopic driving member 212. The mobile driving member 211 is suitable for driving the telescopic driving member 212 to move, and the telescopic driving member 212 is suitable for driving the linkage component 22 to extend and retract.

[0116] It can be understood that when the wheelbase of the sling 1 needs to be adjusted, the telescopic drive member 212 drives the linkage assembly 22 to move and connects with the second connecting rod 132, and then the mobile drive member 211 drives the telescopic drive member 212 to move, so that the linkage assembly 22 and the second connecting rod 132 move together, thereby realizing the adjustment of the wheelbase of the sling 1.

[0117] In some examples, the telescopic driving member 212 is, for example, a motor or a cylinder.

[0118] In some examples, the moving driving member 211 is, for example, a motor or a cylinder.

[0119] In some embodiments, there are two first connecting arms 12, and the adjustment mechanism 2 is disposed on a side of one first connecting arm 12 away from the other first connecting arm 12. This is equivalent to disposing the adjustment mechanism 2 on the outside of the first connecting arm 12, so that the adjustment mechanism 2 will not affect the relative movement between the first connecting arm 12 and the second connecting arm 13, and will not affect the processing of the chassis supported by the first supporting portion 121 and the second supporting portion 131.

[0120] In some embodiments, the first supporting portion 121 includes a supporting surface for supporting the chassis, and the adjustment mechanism 2 is arranged on the side of the plane of the supporting surface facing the first connecting rod 122. That is, the adjustment mechanism 2 is arranged above the first supporting portion 121 to avoid the adjustment mechanism 2 affecting the processing of the chassis.

[0121] According to a second aspect of the present disclosure, a vehicle production line is provided, the vehicle production line comprising the above-mentioned hanger wheelbase adjustment device. The vehicle production line has all the beneficial effects of the above-mentioned hanger wheelbase adjustment device, which will not be described in detail in the present disclosure.

[0122] The vehicle production line may be a fuel vehicle production line, a plug-in hybrid vehicle production line, or a new energy vehicle production line, etc., and the present disclosure does not make any specific limitation on this.

[0123] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0124] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0125] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0126] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application has been described in examples with different focuses on the descriptions of various embodiments, for parts not described in detail in a certain embodiment, reference can be made to the relevant embodiments of other embodiments. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are within the scope of the technical solution of the present application.

Claims

1. A device for adjusting the wheelbase of a spreader, characterized in that: include: The sling comprises a mounting frame, a first connecting arm and a second connecting arm, The first connecting arm includes a first supporting portion and a first connecting rod, wherein the first supporting portion and the first connecting rod extend in different directions. The second connecting arm includes a second supporting portion and a second connecting rod, and the second supporting portion and the second connecting rod extend in different directions. The first supporting portion and the second supporting portion are used to support the chassis, One end of the first connecting rod is connected to the mounting frame, and the other end of the first connecting rod is connected to the first supporting portion. One end of the second connecting rod is movably connected to the mounting frame, and the other end of the second connecting rod is connected to the second supporting portion; The adjustment mechanism includes a motion component and a linkage component that are connected to each other. The linkage component can be connected to the second connecting rod. The motion component can drive the linkage component and the second connecting rod to move, so that the second connecting arm moves relative to the first connecting arm to support chassis with different wheelbases.

2. The hanger wheelbase adjustment device according to claim 1, characterized in that: The hanger wheelbase adjustment device also includes: A locking member connects one end of the second connecting rod and the mounting frame, and the locking member can be switched between a locked state and an unlocked state, wherein in the locked state, the locking member fixes the second connecting rod to the mounting frame, and in the unlocked state, the second connecting rod can move relative to the mounting frame.

3. The hanger wheelbase adjustment device according to claim 2, characterized in that: The locking member comprises a first clamping block and a second clamping block, wherein the first clamping block is movable relative to the second clamping block; The first clamping block is movable toward the second clamping block so that the locking member is in the locking state, and the first clamping block and the second clamping block clamp the mounting frame; The first clamping block can move away from the second clamping block so that the locking member is in the unlocked state, and at least one of the first clamping block and the second clamping block is spaced apart from the mounting frame.

4. The hanger wheelbase adjustment device according to claim 3, characterized in that: The locking member further comprises a clamping seat and an elastic member, wherein the clamping seat is fixedly mounted on the second connecting rod, and the first clamping block is connected to the clamping seat via the elastic member; In the locking state, the elastic member is deformed and provides a deformation restoring force so that the first clamping block and the second clamping block clamp the mounting frame; In the unlocked state, at least one of the first clamping block and the second clamping block is spaced apart from the mounting frame.

5. The hanger wheelbase adjustment device according to claim 3, characterized in that: One of the second clamping block and the mounting frame is formed with a slide groove, and the other is formed with a slider, the slider is clamped in the slide groove, and the slider can move relative to the slide groove.

6. The hanger wheelbase adjustment device according to claim 4, characterized in that: The locking member is connected to one end of the second connecting rod, and the linkage assembly includes an unlocking member, and the unlocking member is connected to the motion assembly; The moving component is suitable for driving the unlocking member to move to the locking member, and the unlocking member can enable the locking member to switch between the locked state and the unlocked state, wherein, in the locked state, the locking member fixes the second connecting rod and the mounting frame, and in the unlocked state, the locking member and the second connecting rod can both move relative to the mounting frame.

7. The hanger wheelbase adjustment device according to claim 6, characterized in that: The unlocking member includes a push rod, and the push rod is connected to the motion assembly. The push rod can move toward the elastic member to make the elastic member in a deformed state, and the push rod applies a thrust to the elastic member to offset the deformation restoring force of the elastic member; The push rod can move away from the elastic member so that the elastic member and the push rod are spaced apart.

8. The hanger wheelbase adjustment device according to any one of claims 1 to 7, characterized in that: The second connecting arm is provided with a plug hole, the linkage assembly includes a plug, the first end of the plug is connected to the moving assembly, and the moving assembly is suitable for driving the plug to be inserted into the plug hole, so that the second connecting arm can move with the movement of the plug.

9. The hanger wheelbase adjustment device according to claim 8, characterized in that: The second connecting arm also includes a connecting seat, the connecting seat is fixedly connected to the second connecting rod, and the connecting seat is formed with the plug-in hole.

10. The hanger wheelbase adjustment device according to any one of claims 1 to 7, characterized in that: The linkage assembly includes a clamping member, the clamping member is connected to the motion assembly, the clamping member forms a clamping cavity, and the motion assembly is suitable for driving the clamping member to move toward the second connecting rod so that the second connecting rod is located in the clamping cavity.

11. The hanger wheelbase adjustment device according to any one of claims 1 to 7, characterized in that: The mounting frame comprises a first cross beam, an extension direction of the first cross beam and an extension direction of the second connecting rod are perpendicular to each other, and the second connecting rod is slidably connected to the first cross beam.

12. The hanger wheelbase adjustment device according to claim 11, characterized in that: The mounting frame comprises a second cross beam and a vertical beam, the second cross beam is spaced apart from the first cross beam, and the vertical beam is connected between the second cross beam and the first cross beam; The second connecting rod is movably connected to the second cross beam, one end of the first cross beam is fixedly connected to the first connecting rod, and the other end of the first cross beam is fixedly connected to the vertical beam.

13. The hanger wheelbase adjustment device according to any one of claims 1 to 7, characterized in that: The motion component includes a mobile driving member and a telescopic driving member, the telescopic driving member is connected to the mobile driving member, the linkage component is connected to the telescopic driving member, the mobile driving member is suitable for driving the telescopic driving member to move, and the telescopic driving member is suitable for driving the linkage component to telescope.

14. The hanger wheelbase adjustment device according to any one of claims 1 to 7, characterized in that: There are two first connecting arms, and the adjustment mechanism is arranged on a side of one of the first connecting arms away from the other first connecting arm; and / or, The first supporting portion includes a supporting surface for supporting the chassis, and the adjustment mechanism is arranged on a side of the plane where the supporting surface is located facing the first connecting rod.

15. A vehicle production line, characterized in that: It comprises a hanger wheelbase adjustment device as described in any one of claims 1 to 14.

Images