CN203582411U - Fork arm - Google Patents

Abstract

The utility model discloses a yoke, which comprises a yoke frame, a first linear drive device, a second linear drive device, a first support frame, a second support frame and a yoke body, wherein the first support frame is fixed on On the yoke frame, the second support frame includes an upper support frame and a lower support frame that are fixedly connected. The upper support frame is set on the first support frame so that it can slide back and forth. A linear driving device is arranged on the yoke frame, and its driving end is connected to the upper support frame. The second linear driving device is arranged on the lower supporting frame, and its driving end is connected to the yoke body. When in use, it is driven by the first linear drive The device drives the upper support frame to move back and forth on the first support frame to realize the forward and backward movement of the yoke body, and the second linear drive device drives the yoke body to move left and right on the lower support frame to realize the left and right movement of the yoke body, that is, to realize left and right movement of the fork arm.

Description

a wishbone

technical field

The utility model relates to the technical field of forklift transport arms, in particular to a fork arm.

Background technique

Forklifts are industrial transport vehicles, which refer to various wheeled transport vehicles for loading and unloading, stacking and short-distance transportation of palletized goods. Forklifts include driving vehicles and fork arms arranged at the front end of driving vehicles.

At present, a forklift is generally required during the installation of the current transformer at the bottom of the 35kV switch cabinet. The current transformer is an important device for connecting the switch and the outgoing line, and its installation position is fixed. The distance between the front and rear cabinet doors is relatively large, and it has a certain installation depth. At the same time, when the current transformer needs to be replaced, the conductive bar above the current transformer is generally not removed, so the larger current transformer is coming out or entering. At the same time, the bottom of the current transformer is installed on two bent plates set at intervals. Generally, the current transformer is sent to the designated position by a forklift and then dragged up.

Therefore, there are various problems with the installation as follows:

1. The internal space of the switch cabinet is small, and due to the lack of suitable installation tools, the work efficiency of disassembling and assembling CT is low, and there are safety risks;

2. The space inside the switchgear is narrow, and the CT is located in a relatively deep position inside, plus there are other equipment such as wire rows and cables, and maintenance personnel drill in and out, making installation and disassembly very inconvenient;

3. The current transformers used in 35kV are all heavy, many of which are more than 80kg. When disassembling, they are only tied by ropes and dragged back and forth to place them. However, most current transformers are smooth in appearance and have no stress points at all, so it is very difficult to move;

4. Due to the protruding parts of the "threshold" such as channel steel, flat iron, and cables with different heights on the ground, dragging is laborious, and bumps are likely to occur during the dragging process, resulting in damage to the porcelain skirt of the current transformer and bringing equipment safety risk;

5. Since it is impossible to apply force during installation and it is easy to slip, people often lose their hands in a small space, resulting in bumps and traumas;

6. The current drag-and-drop installation method requires at least 4 people for a group of CTs. It takes more than half an hour to install a single CT, and at least two hours for a group of three CTs. The work efficiency is very low.

There are several problems with the replacement:

1) During the installation of the switchgear, the conductive bar connecting the current transformer is installed after the bottom current transformer is installed. However, in the process of replacing the current transformer, the conductive bar is generally not removed, resulting in almost no height left for the newly installed current transformer. The margin, the huge current transformer is easy to get stuck when inserted into it;

2) Regardless of whether the current transformer is dragged into the reserved position in the switch cabinet on the front or back of the switch cabinet, the bottom of the switch cabinet is not a plane, but there are "thresholds" such as channel steel, flat iron, and cables with different heights. Using the dragging method to make the bulky CT climb over these "thresholds", on the one hand, it is not easy for maintenance personnel to use force in a small space;

3) The current transformer is installed on two symmetrical bent plates. There is a gap of about 20cm between the two bent plates, and the distance between the bent plate and the conductive row can just pass through a current transformer. If the dragging process The current transformer cannot smoothly pass through the gap between the two bent plates, and it will be stuck up and down by the bent plate and the conductive bar.

The yoke on the special forklift currently used can only move forward and backward and lift up and down, but cannot move left and right, and cannot adapt to the installation environment of the current transformer in a small space, so it is very reluctant to use.

Therefore, how to provide a yoke to realize the left and right movement of the yoke is a technical problem to be solved urgently by those skilled in the art.

Utility model content

In view of this, the purpose of the utility model is to provide a yoke to realize the left and right movement of the yoke.

In order to achieve the above object, the utility model provides the following technical solutions:

A yoke, comprising a yoke frame, a first linear drive device, a second linear drive device, a first support frame, a second support frame and a yoke body, wherein the first support frame is fixed on the fork On the arm frame, the second support frame includes an upper support frame and a lower support frame fixedly connected, the upper support frame can slide back and forth on the first support frame, and the yoke body can slide left and right Set on the lower support frame, the first linear drive device is set on the yoke frame, its drive end is connected with the upper support frame, the second linear drive device is set on the lower support On the frame, its driving end is connected with the fork arm body.

Preferably, the above-mentioned first linear drive device is a lead screw drive device.

Preferably, the above-mentioned first linear drive device includes a first threaded rod and a first threaded ring, the first threaded ring is fixed on the yoke frame, and one end of the first threaded rod is arranged on the first In the threaded ring, the other end thereof is fixedly connected with the upper support frame.

Preferably, the above-mentioned first linear drive device includes a first screw rod, a first threaded ring and a first fixing ring, the first fixing ring is fixed on the yoke frame, and the first threaded ring is fixed on the On the above support frame, one end of the first threaded rod is rotatably set in the first fixing ring, and the other end is set in the first threaded ring.

Preferably, the above-mentioned second linear drive device is a lead screw drive device.

Preferably, the second linear drive device includes a second threaded rod and a second threaded ring, the second threaded ring is fixed on the lower support frame, and one end of the second threaded rod is arranged on the second threaded The other end of the ring is fixedly connected to the yoke body.

Preferably, the above-mentioned second linear drive device includes a second screw rod, a second threaded ring and a second fixing ring, the second fixing ring is fixed on the lower support frame, and the second threaded ring is fixed on the On the yoke body, one end of the second threaded rod is rotatably arranged in the second fixed ring, and the other end is arranged in the second threaded ring.

Preferably, a slide rail is provided on the above-mentioned first support frame, and a slide groove used in cooperation with the slide rail is provided on the upper support frame.

Preferably, a slide rail is provided on the above-mentioned lower support frame, and a slide groove used in cooperation with the slide rail is provided on the yoke body.

Preferably, the above-mentioned lower support frame is an I-shaped frame.

The yoke provided by the utility model includes a yoke frame, a first linear drive device, a second linear drive device, a first support frame, a second support frame and a yoke body, wherein the first support frame is fixed on On the yoke frame, the second support frame includes an upper support frame and a lower support frame fixedly connected, and the upper support frame can be slid back and forth on the first support frame, and the yoke body can be The left and right slides are arranged on the lower support frame, the first linear drive device is arranged on the yoke frame, and its driving end is connected with the upper support frame, and the second linear drive device is arranged on the On the lower support frame, its driving end is connected with the yoke body. When in use, the upper support frame is driven to move back and forth on the first support frame through the first linear drive device, so as to realize the front and rear movement of the yoke body. Two linear drive devices drive the yoke body to move left and right on the lower support frame, realizing the left and right movement of the yoke body, that is, realizing the left and right movement of the yoke, and the left and right movement is not realized by the movement of the forklift, but It is realized by itself, then when installing the current transformer, the current transformer can be placed on the fork arm body, and then the first linear drive device is turned on to send the current transformer to the top of the installation position, and then the second linear drive is turned on The driving device adjusts the position of the current transformer in the left and right directions, so that the current transformer is located directly above the installation position, and then lowers the height of the yoke body to the bending plate and withdraws it. The height of the yoke body The lifting is specifically the lifting control to the wishbone frame, which is a prior art.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present utility model. Those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is the side view structural schematic diagram of the yoke provided by the embodiment of the utility model;

Fig. 2 is a schematic structural diagram of the lower bracket provided by the embodiment of the present invention.

In Figure 1 and Figure 2 above:

Wishbone frame 1, first screw rod 2, first support frame 3, upper support frame 4, yoke body 5, second screw rod 6, lower support frame 7, right cross arm 71, left cross arm 72, upper cross arm Arm 73, lower cross arm 74.

Detailed ways

The embodiment of the utility model provides a yoke to realize the left and right movement of the yoke.

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 and Fig. 2, Fig. 1 is a side view structural diagram of the yoke provided by the embodiment of the utility model; Fig. 2 is a schematic diagram of the structure of the lower bracket provided by the embodiment of the utility model.

The yoke provided by the embodiment of the utility model includes a yoke frame 1, a first linear drive device, a second linear drive device, a first support frame 3, a second support frame and a yoke body 5, wherein the first support The frame 3 is fixed on the yoke frame 1, and the second support frame includes an upper support frame 4 and a lower support frame 7 fixedly connected, and the upper support frame 4 can slide forward and backward on the first support frame 3. Left and right slides are arranged on the lower support frame 7, the first linear drive device is arranged on the yoke frame 1, and its drive end is connected with the upper support frame 4, and the second linear drive device is arranged on the lower support frame 7, and its drive end is connected with the upper support frame 4. The yoke body 5 is connected. When in use, the upper support frame 4 is driven to move back and forth on the first support frame 3 by the first linear drive device to realize the front and rear movement of the yoke body 5, and the yoke body is driven by the second linear drive device. 5 moves left and right on the lower support frame 7 to realize the left and right movement of the yoke body 5, that is, to realize the left and right movement of the yoke, and the left and right movement is not realized by the movement of the forklift, but by itself , then when installing the current transformer, the current transformer can be placed on the yoke body 5, and then the first linear drive device is turned on to send the current transformer to the top of the installation position, and then the second linear drive device is turned on. The position of the current transformer is adjusted in the left and right direction, so that the current transformer is located directly above the installation position, and then the height of the yoke body 5 is lowered to the bending plate and then withdrawn. The height of the yoke body 5 can be lifted Specifically, it is the prior art to the lift control of the wishbone frame 1 .

Wherein, the first linear drive device and the second linear drive device can both be screw drive devices, the screw drive is very stable, and can realize fine adjustment, and can convert rotary motion into linear motion, then the motor can be used as the power source Of course, it can also be manually rotated and adjusted. At this time, the lower support frame 7 is an I-shaped frame that is more suitable for the use of screw drive. As shown in Figure 2, the I-shaped frame 7 includes an upper cross arm 73, a left cross arm 72, and a right cross arm. arm 71 and lower cross arm 74 .

In the first specific embodiment, when the first linear drive device is a lead screw drive device, the first linear drive device includes a first screw rod 2 and a first threaded ring, and the first threaded ring is fixed on the yoke frame 1 Above, one end of the first threaded mandrel 2 is set in the first threaded ring, and the other end is fixedly connected with the upper support frame 4. When in use, the first threaded mandrel 2 is rotated, and the first threaded mandrel 2 is in the first threaded ring When rotating, the two will move relative to each other, so the distance between the upper support frame 4 and the yoke frame 1 can be increased or decreased, thereby realizing the forward and backward movement of the yoke body 5 .

In the second specific embodiment, when the first linear drive device is a lead screw drive device, the first linear drive device includes a first screw rod 2, a first threaded ring and a first fixing ring, and the first fixing ring fixes On the yoke frame 1, the first threaded ring is fixed on the upper support frame 4, one end of the first screw mandrel 2 is rotatably arranged in the first fixed ring, and the other end is arranged in the first threaded ring, the first The fixed ring can make the first screw rod 2 only rotate, but it will not move relative to each other. Then when the first screw rod 2 rotates, it will drive the first threaded ring away from or close to the first fixed ring, so as to realize the upper support frame 4 away from or close to the yoke frame 1, the front and rear movement of the yoke body 5 can also be realized.

In the third specific embodiment, when the second linear drive device is a lead screw drive device, the second linear drive device includes a second screw rod 6 and a second threaded ring, the second threaded ring is fixed on the lower support frame 7, and the second threaded ring is fixed on the lower support frame 7. One end of the second screw rod 6 is arranged in the second threaded ring, and the other end thereof is fixedly connected with the yoke body 5 . At this time, the second threaded ring can be arranged on the left cross arm 72 or the right cross arm 71, and the place where the second screw rod 6 and the yoke body 5 are fixed can be located between the left cross arm 72 and the right cross arm 71. Very in place, when in use, turn the second screw mandrel 6, when the second screw mandrel 6 rotates in the second threaded ring, the two will move relative to each other, then the fork arm body 5 can move left and right on the lower support frame 7 , so as to realize the left and right movement of the yoke body 5 .

In the fourth specific embodiment, when the second linear drive device is a lead screw drive device, the second linear drive device includes a second screw rod 6, a second threaded ring and a second fixed ring, and the second fixed ring is fixed on the lower support On the frame 7, the second threaded ring is fixed on the yoke body 5, and one end of the second screw mandrel 6 is rotatably arranged in the second fixed ring, and the other end is arranged in the second threaded ring. At this time, the second The position where the threaded ring is fixed on the yoke body 5 can be located between the left cross arm 72 and the right cross arm 71, and the second fixing ring can be directly set on the left cross arm 72 or the right cross arm 71, and the structural design is very good. The two fixing rings can only make the second screw mandrel 6 rotate, but there is no relative movement, so when the second screw mandrel 6 rotates, it will drive the second threaded ring away from or close to the second fixing ring, so that the fork can be realized. The left and right movement of the arm body 5 on the lower support frame 7 can also realize the forward and backward movement of the fork arm body 5 .

Specifically, the first support frame 3 is provided with a slide rail, and the upper support frame 4 is provided with a chute used in conjunction with the slide rail, so that the upper support frame 4 can be slid back and forth on the first support frame 3 . Simultaneously, a slide rail may also be provided on the lower support frame 7 , and a chute used in conjunction with the slide rail is provided on the yoke body 5 . The yoke body 5 is arranged on the lower support frame 7 so that it can slide left and right, wherein the slide rail provided on the lower support frame 7 can be an upper cross arm 71 .

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A yoke, characterized in that it comprises a yoke frame, a first linear drive, a second linear drive, a first support frame, a second support frame and a yoke body, wherein the first support The frame is fixed on the yoke frame, and the second support frame includes an upper support frame and a lower support frame fixedly connected, and the upper support frame can be slid back and forth on the first support frame, and the fork The arm body can slide left and right and is arranged on the lower support frame, the first linear drive device is arranged on the yoke frame, and its driving end is connected with the upper support frame, and the second linear drive device It is arranged on the lower supporting frame, and its driving end is connected with the fork arm body. 2. The yoke according to claim 1, wherein the first linear drive device is a lead screw drive device. 3. The yoke according to claim 2, wherein the first linear drive device comprises a first screw rod and a first threaded ring, and the first threaded ring is fixed on the yoke frame, One end of the first threaded rod is arranged in the first threaded ring, and the other end is fixedly connected with the upper supporting frame. 4. The yoke according to claim 2, wherein the first linear drive device comprises a first screw rod, a first threaded ring and a first fixing ring, and the first fixing ring is fixed on the On the yoke frame, the first threaded ring is fixed on the upper support frame, one end of the first screw rod is rotatably set in the first fixing ring, and the other end is set in the first in the threaded ring. 5. The yoke according to claim 1, wherein the second linear driving device is a screw driving device. 6. The yoke according to claim 5, wherein the second linear drive device comprises a second screw rod and a second threaded ring, the second threaded ring is fixed on the lower support frame, the One end of the second threaded rod is arranged in the second threaded ring, and the other end is fixedly connected with the yoke body. 7. The yoke according to claim 5, wherein the second linear driving device comprises a second screw rod, a second threaded ring and a second fixing ring, and the second fixing ring is fixed on the lower On the support frame, the second threaded ring is fixed on the yoke body, one end of the second screw rod is rotatably set in the second fixing ring, and the other end is set in the second threaded in the ring. 8 . The yoke according to claim 1 , wherein a slide rail is provided on the first support frame, and a slide groove that cooperates with the slide rail is provided on the upper support frame. 9 . 9 . The yoke according to claim 1 , wherein a slide rail is provided on the lower support frame, and a slide groove that cooperates with the slide rail is provided on the yoke body. 10 . 10. The yoke according to claim 1, wherein the lower support frame is an I-shaped frame.

Images