CN111332942A - A powerless spreader - Google Patents

Abstract

The invention discloses an unpowered lifting appliance, which comprises a lifting appliance frame, a telescopic connecting rod, a supporting rod and two claw hand rods which are bilaterally and symmetrically arranged on two sides of the lifting appliance frame, wherein the upper ends of the two claw hand rods are respectively and movably connected with one side of the lifting appliance frame in a rotating mode, the lower ends of the two claw hand rods are respectively and fixedly connected with an automobile body in a releasing mode, the telescopic connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod which are sequentially and movably connected, the left end of the first connecting rod is fixedly connected with the claw hand rod on the left side, the right end of the third connecting rod is fixedly connected with the claw hand rod on the right side, the supporting rod is fixedly arranged in the center of the lifting appliance frame, the lower end of the supporting rod is movably connected with the middle of the second connecting rod, a positioning pull rope with a fixed upper end position is arranged at the joint of. The unpowered lifting appliance is simple in structure and low in cost, reduces the number of operators, shortens hanging and taking time, and eliminates potential safety hazards.

Description

A powerless spreader

technical field

The invention relates to a spreader, in particular to a powerless spreader.

Background technique

When the car body needs to be welded or repaired, the car body needs to be hoisted and moved from one platform to another. Spreaders driven by hydraulic motors, hydraulic cylinders or electric motors have a high degree of automation, but have complex structures and high costs. At the same time, setting up power equipment will increase signal transmission and action time. At present, the front car body uses a manual spreader, and the flexible hook of the iron chain is used to connect the front car body. Each platform has an employee who manually operates to pick up and hang the spreader, which has the following problems:

1. The work is simple and the efficiency is low. It takes 6 seconds for the employee to pick up and hang the hook;

2. The risk of extrusion is high in the process of manually removing and hanging the hook;

3. Other employees of the production line wait for a long time during the operation of the spreader.

SUMMARY OF THE INVENTION

The present invention is accomplished in order to solve the deficiencies in the prior art, and the purpose of the present invention is to provide a non-powered spreader, which has a simple structure, low cost, reduces the number of personnel operating the spreader, and shortens the hanging and fetching of the spreader. time, and eliminates the hidden safety hazards in the manual hanging process.

An unpowered spreader of the present invention includes a spreader frame, a telescopic link, a support rod, and two claw levers symmetrically arranged on both sides of the spreader frame. The upper ends of the two claw levers are respectively connected to the One side of the spreader frame is rotatably connected, and the lower ends of the two gripper rods are respectively connected to the vehicle body in a release type fixed connection. The telescopic link includes a first link, a second link and a third link. The left end of the first link is fixedly connected with the claw lever on the left side, the right end of the first link is movably connected with the left end of the second link, and the right end of the second link It is movably connected with the left end of the third connecting rod, the right end of the third connecting rod is fixedly connected with the claw lever on the right side, the support rod is fixedly penetrated in the center of the spreader frame, and the The lower end of the support rod is movably connected with the middle of the second connecting rod, the connection between the first connecting rod and the second connecting rod is provided with a positioning cable with a fixed upper end position, and the second connecting rod is connected to the second connecting rod. The connection of the third connecting rod is provided with a spring whose upper end is fixed in position.

A kind of unpowered spreader of the present invention can also be:

The lower end of the claw lever is fixedly provided with a hook, and the claw lever is releasably fixedly connected to the vehicle body through the hook.

The claw lever includes a vertically arranged first boom and a second boom, and a horizontally arranged transverse rod. The first boom, the second boom and the transverse rod are respectively arranged symmetrically on the left and right sides. On both sides of the hanger frame, the cross bar is fixedly arranged between the first hanger rod and the second hanger rod, and the two ends of the cross rod are respectively connected with the middle of the first hanger rod. The upper part is fixedly connected with the middle and upper part of the second hanger rod, the upper ends of the first hanger rod and the second hanger rod are respectively movably connected with one side of the hanger frame, and the first hanger rod and the The lower ends of the second boom are respectively connected to the vehicle body in a releasable and fixed manner, the left end of the first link is fixedly connected to the middle of the crossbar on the left side of the spreader frame, and the third link is fixedly connected. The right end of the rod is fixedly connected to the middle of the transverse rod on the right side of the spreader frame.

The upper end of the gripper lever is hinged with one side of the spreader frame.

The two sides of the spreader frame are respectively provided with hinge shafts, the front and rear ends of the hinge shaft are respectively fixedly connected to one side of the spreader frame, and the upper end of the claw lever is rotatably connected to the hinge shaft superior.

An unpowered spreader of the present invention includes a spreader frame, a telescopic link, a support rod, and two claw levers symmetrically arranged on both sides of the spreader frame. The upper ends of the two claw levers are respectively connected to the One side of the spreader frame is rotatably connected, and the lower ends of the two gripper rods are respectively connected to the vehicle body in a release type fixed connection. The telescopic link includes a first link, a second link and a third link. The left end of the first link is fixedly connected with the claw lever on the left side, the right end of the first link is movably connected with the left end of the second link, and the right end of the second link It is movably connected with the left end of the third connecting rod, the right end of the third connecting rod is fixedly connected with the claw lever on the right side, the support rod is fixedly penetrated in the center of the spreader frame, and the The lower end of the support rod is movably connected with the middle of the second connecting rod, the connection between the first connecting rod and the second connecting rod is provided with a positioning cable with a fixed upper end position, and the second connecting rod is connected to the second connecting rod. The connection of the third connecting rod is provided with a spring whose upper end is fixed in position. In this way, the grasping and loosening of the vehicle body is realized by opening and clamping the two claw levers arranged on both sides of the spreader frame. The telescopic link is used to connect the claw levers on both sides, and the telescopic link contracts and pulls The distance between the two claw levers (claw lever clamping) realizes the grasping of the car body, and the telescopic link is extended to increase the distance between the two claw levers (the claw lever is opened) to release the car body , The contraction and extension of the telescopic link is realized by the positioning rope and spring. After the specific spreader is lowered in place, the positioning rope is straightened under the action of gravity. At this time, the connection between the first link and the second link is affected by Positioning the upward pulling force of the pull rope, the second link can rotate with the lower end of the support rod as the center, the left end of the second link moves upward, the right end of the second link moves downward, and the spring is in a stretched state, thereby realizing the telescopic link When the spreader moves to the top of the work platform, it starts to descend. When the spreader drops to a certain position, the The car body is placed on the platform. At this time, the positioning rope is not straightened, and the spring is in a stretched state. The connection between the second link and the third link is pulled upward by the spring, and the right end of the second link Moving up, the telescopic link is extended, and the claw lever is opened to disengage from the vehicle body. In this way, the spreader uses its own weight and the elastic force of the spring as the power source to realize automatic hanging and retrieval, without the need for power equipment, the structure is simple, the cost is reduced, the signal transmission and action time increased by the power equipment are avoided, and there is no need to manually operate the spreader and the vehicle. The connection of the machine body reduces the number of personnel operating the spreader, shortens the hanging time of the spreader, and eliminates the safety hazard in the manual hanging process. Compared with the prior art, the unpowered spreader of the present invention has the following advantages: simple structure, low cost, reduction of the number of personnel operating the spreader, shortening of the hanging time of the spreader, and elimination of manual hanging. safety hazards in the extraction process.

Description of drawings

FIG. 1 is a schematic structural diagram of an unpowered spreader of the present invention.

Description of drawing numbers

1…Spreader frame 2…Telescopic link 3…Support rod

4…Gripper lever 5…First link 6…Second link

7…Third link 8…Locating cable 9…Spring

10…Hook 11…First boom 12…Second boom

13…Crossbar

Detailed ways

Below in conjunction with FIG. 1 , a non-power spreader of the present invention will be further described in detail.

A non-powered spreader of the present invention, please refer to FIG. 1 , includes a spreader frame 1, a telescopic link 2, a support rod 3 and two claw levers 7 symmetrically arranged on both sides of the spreader frame 1. Two The upper ends of the claw levers 7 are respectively rotatably connected with one side of the spreader frame 1 , and the lower ends of the two claw levers 7 are respectively disconnected and fixedly connected with the vehicle body. It includes a first connecting rod 5, a second connecting rod 6 and a third connecting rod 7, the left end of the first connecting rod 5 is fixedly connected with the claw lever 7 on the left side, and the right end of the first connecting rod 5 It is movably connected with the left end of the second connecting rod 6, the right end of the second connecting rod 6 is movably connected with the left end of the third connecting rod 7, and the right end of the third connecting rod 7 is connected with the The claw lever 7 is fixedly connected, the support rod 3 is fixedly penetrated in the center of the spreader frame 1, the lower end of the support rod 3 is movably connected with the middle of the second link 6, the first connection The connection between the rod 5 and the second connecting rod 6 is provided with a positioning cable 8 with a fixed upper end position, and the connection between the second connecting rod 6 and the third connecting rod 7 is provided with a spring 9 with a fixed upper end position. . In this way, the grasping and loosening of the vehicle body is realized by opening and clamping the two claw levers 7 arranged on both sides of the spreader frame 1. The telescopic link 2 is used to connect the claw levers 7 on both sides, and the telescopic link 2 is used to connect the claw levers 7 on both sides. The connecting rod 2 shrinks and narrows the distance between the two claw levers 7 (claw lever 7 is clamped) to realize the grasping of the vehicle body, and the telescopic link 2 extends and widens the distance between the two claw levers 7 (claw lever 7 is clamped). The hand lever 7 is opened) to release the car body, the contraction and extension of the telescopic link 2 are realized by the positioning rope 8 and the spring 9. After the specific spreader is lowered in place, the positioning rope 8 is straightened under the action of gravity. When the connection between the first link 5 and the second link 6 is pulled upward by the positioning cable 8, the second link 6 can rotate with the lower end of the support rod 3 as the center, the left end of the second link 6 moves upward, and the second link 6 moves upward. The right end of the second link 6 moves downward, and the spring 9 is in a stretched state, thereby realizing the contraction of the telescopic link 2, and the two claw levers 7 are clamped to grab the car body and lift the car body to move to the working platform. When the spreader moves to the top of the operation platform, it starts to descend. When the spreader drops to a certain position, the car body is placed on the platform. At this time, the positioning rope 8 is not straightened, and the spring 9 is in a stretched state. The connection between the second link 6 and the third link 7 is pulled upward by the spring 9, the right end of the second link 6 moves upward, the telescopic link 2 is extended, and the claw lever 7 is opened so as to be separated from the vehicle body . In this way, the spreader uses its own weight and the elastic force of the spring 9 as the power source to realize automatic hanging and retrieval, without power equipment, the structure is simple, the cost is reduced, the signal transmission and action time increased by the power equipment are avoided, and there is no need to manually operate the spreader and The connection of the car body reduces the number of personnel operating the spreader, shortens the hanging time of the spreader, and eliminates the safety hazard in the manual hanging process. Compared with the prior art, the unpowered spreader of the present invention has the following advantages: simple structure, low cost, reduction of the number of personnel operating the spreader, shortening of the hanging time of the spreader, and elimination of manual hanging. safety hazards in the extraction process.

An unpowered spreader of the present invention, on the basis of the technical solution described above, please refer to FIG. 1 , it can also be: a hook 10 is fixed at the lower end of the claw lever 7 , and the claw lever 7 passes through the hook 10 . The hook 10 is releasably fixedly connected to the vehicle body. In this way, compared with the prior art, the original flexible hook 10 of the iron chain is cancelled, and the rigid hook 10 is adopted, which does not require manual operation of the connection between the spreader and the vehicle body, reduces the number of personnel operating the spreader, and shortens the hanging and taking of the spreader. time.

An unpowered spreader of the present invention, on the basis of the technical solution described above, please refer to FIG. 1 , it can also be: the claw handle bar 7 includes a vertically arranged first hanger rod 11 and a second hanger rod 12, and a horizontally arranged cross bar 13, the first hanger rod 11, the second hanger rod 12 and the cross rod 13 are respectively arranged symmetrically on both sides of the hanger frame 1, the cross rod 13 is fixedly arranged between the first hanger rod 11 and the second hanger rod 12, and the two ends of the cross rod 13 are respectively connected with the middle and upper part of the first hanger rod 11 and the second hanger rod The middle and upper parts of 12 are fixedly connected, and the upper ends of the first boom 11 and the second boom 12 are respectively movably connected to one side of the spreader frame 1. The first boom 11 and the second boom The lower ends of the hanger rods 12 are respectively connected with the vehicle body in a releasable and fixed manner. The left end of the first link 5 is fixedly connected to the middle of the cross rod 13 on the left side of the spreader frame 1 . The right end of the connecting rod 7 is fixedly connected to the middle of the cross bar 13 on the right side of the spreader frame 1 . In this way, by setting four rods to connect with the vehicle body, the structure is more stable. The cross rod 13 is used to connect the first hanger rod 11 and the second hanger rod 12, and the two ends of the telescopic link 2 are connected to the cross rod 13, and the structure is simple. Stablize.

An unpowered spreader of the present invention, on the basis of the technical solutions described above, please refer to FIG. In this way, the structure is simple, so that the claw lever 7 can rotate around one side of the spreader frame 1 to realize the clamping and opening actions between the two claw levers 7 . On the basis of the technical solutions described above, it is further preferred that hinge shafts are respectively provided on both sides of the spreader frame 1 , and the front and rear ends of the hinge shaft are respectively fixed to one side of the spreader frame 1 . The upper end of the gripper lever 7 is rotatably connected to the hinge shaft. In this way, by setting the hinge shafts on both sides of the spreader frame 1 respectively for connecting the left and right claw levers 7, the claw lever 7 can be rotated around the hinge shaft to realize the clamping between the two claw levers 7 and open action.

The above only describes the specific embodiments of the present invention, but cannot be regarded as the protection scope of the present invention. Any equivalent changes or modifications made according to the design spirit of the present invention should be considered to fall into the protection scope of the present invention.

Claims (5)

1. An unpowered spreader, characterized in that: comprising a spreader frame, a telescopic link, a support rod and two claw levers symmetrically arranged on both sides of the spreader frame, the upper ends of the two claw levers They are respectively connected with one side of the spreader frame in a rotatable manner, and the lower ends of the two claw levers are respectively connected with the vehicle body in a releasable and fixed manner. The telescopic link includes a first link, a second link and The third link, the left end of the first link is fixedly connected with the claw lever on the left side, the right end of the first link is movably connected with the left end of the second link, the second link The right end of the rod is movably connected with the left end of the third connecting rod, the right end of the third connecting rod is fixedly connected with the claw lever on the right side, and the support rod is fixedly penetrated in the center of the spreader frame , the lower end of the support rod is movably connected with the middle of the second connecting rod, the connection between the first connecting rod and the second connecting rod is provided with a positioning cable with a fixed upper end position, and the second connecting rod The connection between the rod and the third connecting rod is provided with a spring whose upper end is fixed in position. 2 . The unpowered spreader according to claim 1 , wherein a hook is fixed at the lower end of the claw lever, and the claw lever is releasably fixed to the vehicle body through the hook. 3 . connect. 3 . The unpowered spreader according to claim 1 , wherein the claw handle bar comprises a vertically arranged first and second suspender bars, and a horizontally arranged cross bar, and the first suspender bar is 3 . A hanger rod, the second hanger rod and the cross rod are respectively arranged symmetrically on both sides of the spreader frame, and the cross rod is fixedly arranged between the first hanger rod and the second hanger rod and the two ends of the cross bar are respectively fixedly connected with the middle and upper parts of the first suspender and the middle and upper parts of the second suspender, and the upper ends of the first suspender and the second suspender are respectively It is movably connected with one side of the sling frame, the lower ends of the first suspender and the second suspender are respectively connected with the vehicle body in a releasable manner, and the left end of the first link is located in the The middle part of the cross bar on the left side of the spreader frame is fixedly connected, and the right end of the third link is fixedly connected with the middle part of the cross bar on the right side of the spreader frame. 4 . The unpowered spreader according to claim 1 , wherein the upper end of the gripper lever is hinged to one side of the spreader frame. 5 . 5 . The unpowered spreader according to claim 4 , wherein the two sides of the spreader frame are respectively provided with hinge shafts, and the front and rear ends of the hinge shaft are respectively connected with the two sides of the spreader frame. 6 . One side is fixedly connected, and the upper end of the gripper lever is rotatably connected to the hinge shaft.

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