Forklift for large-depth box-type quenching furnace

Abstract

The invention relates to the technical field of heat treatment, and discloses a large-depth box-type quenching furnace forklift which comprises a forklift body transversely moving on the ground in front of a quenching furnace. The material taking assembly comprises a material taking vehicle body and a material taking part, the material taking vehicle body moves into the quenching furnace from the forklift body, and the material taking part is arranged on the material taking vehicle body and used for taking out workpieces in the quenching furnace; the driving assembly comprises two driving parts and two limiting parts, the two driving parts are arranged at the two ends of the forklift body correspondingly, the two ends of the material taking vehicle body are connected with the two driving parts through the two limiting parts correspondingly, and the driving parts are used for driving the material taking vehicle body to move on the forklift body; and the quenching assembly comprises a plurality of hoisting pieces, and the multiple hoisting pieces are arranged on the forklift body and used for hoisting the material taking vehicle body and the workpieces into a quenching pool. The problem that a forklift cantilever in a large-depth box-type furnace is too long is solved, the huge structure is avoided, the manufacturing cost is reduced, and the forklift cantilever is economical and durable.

Description

Technical Field

[0001] The invention relates to the technical field of heat treatment, in particular to a large-depth box-type quenching furnace forklift. Background Art

[0002] There are many methods for metal quenching (tempering), among which there is a quenching method with a box-type furnace equipped with a forklift, which is widely used in reality. The box-type furnace uses a lifting furnace door and a forklift front fork as moving parts, and has two moving directions of forward and backward and up and down. The workpiece is taken out of the furnace, returned to the quenching pool, and then sunk into the quenching liquid for quenching (the forklift body can move left and right for quenching / tempering furnace). This quenching method is convenient and fast, with a high degree of automation, and is especially suitable for the working conditions where the workpiece is taken out of the furnace and reaches the quenching liquid surface in a short time. In the forklift structure, under the working conditions where the depth of the box-type furnace is relatively large and the weight of the workpiece is also relatively large, the torque acting on the forklift front fork will be very large, resulting in the corresponding increase of the vertical arm supporting the front fork and its moving mechanism during the forklift design process, and the increase of the space required for forward and backward movement, resulting in excessively high manufacturing and use costs.

[0003] Therefore, there is an urgent need for a large-depth box-type quenching furnace forklift to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a large-depth box-type quenching furnace forklift to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a large-depth box-type quenching furnace forklift, comprising:

[0006] The forklift body moves horizontally on the ground in front of the quenching furnace;

[0007] A material taking assembly, comprising a material taking vehicle body and a material taking piece, wherein the material taking vehicle body is moved from the forklift body into the quenching furnace, and the material taking piece is arranged on the material taking vehicle body and is used to take out the workpiece in the quenching furnace;

[0008] A driving assembly, comprising two driving members and two limiting members, wherein the two driving members are respectively arranged at two ends of the forklift body, and the two ends of the retrieving vehicle body are respectively connected to the two driving members through the two limiting members, and the driving members are used to drive the retrieving vehicle body to move on the forklift body;

[0009] The quenching assembly includes a plurality of hoisting parts, which are respectively arranged on the forklift body and are used to hoist the material taking vehicle body and the workpiece into the quenching pool.

[0010] According to a large-depth box-type quenching furnace forklift provided by the present invention, the material picking member includes a plurality of front forks installed on the material picking vehicle body, and the front forks are adapted to the support frame in the quenching furnace and are used to remove the workpiece on the support frame.

[0011] According to a large-depth box-type quenching furnace forklift provided by the present invention, a lifting connecting plate is provided at the bottom end of the material picking vehicle body, and a plurality of movable wheels are installed on the lifting connecting plate. The material picking vehicle body is connected to the lifting connecting plate through a connecting rod, and is configured such that when the lifting connecting plate is limitedly connected to the forklift body through a positioning pin, the driving member drives the material picking vehicle body to move backward and lift, and the material picking vehicle body contacts the bottom end of the workpiece after being lifted.

[0012] According to a large-depth box-type quenching furnace forklift provided by the present invention, the driving part includes a threaded rod rotatably connected to the forklift body, a nut is threadedly connected to the threaded rod, grooves are respectively provided at both ends of the material-retrieving vehicle body, the nut is connected to the groove through the limit member, two motors are fixedly connected to the forklift body, and one end of the two threaded rods is respectively fixedly connected to the output shafts of the two motors.

[0013] According to a large-depth box-type quenching furnace forklift provided by the present invention, the limiting member includes a fork mounted on the nut, and the fork extends into the groove.

[0014] According to a large-depth box-type quenching furnace forklift provided by the present invention, the lifting component includes a mounting frame fixedly connected to the top of the forklift body, a winch is installed on the mounting frame, a wire rope on the winch is connected to a hanging basket, a through hole is opened on the forklift body, the hanging basket is adapted to the through hole, and the material-retrieving vehicle body is located on the hanging basket.

[0015] According to the large-depth box-type quenching furnace forklift provided by the present invention, a plurality of water leakage holes are provided on the hanging basket.

[0016] According to a large-depth box-type quenching furnace forklift provided by the present invention, rails are installed on the top of the hanging basket and the bottom of the interior of the quenching furnace, and the moving wheels are adapted to the rails.

[0017] According to a large-depth box-type quenching furnace forklift provided by the present invention, the material-retrieving vehicle body is a U-shaped structure.

[0018] According to the large-depth box-type quenching furnace forklift provided by the present invention, the number of the hoists is four, which are respectively located at the four corners of the forklift body.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects:

[0020] The present invention provides a forklift for a large-depth box-type quenching furnace. The forklift body moves horizontally on the ground in front of the quenching furnace, and the quenching pool is located below. When taking out a workpiece, after the quenching furnace is opened, the driving member is connected to the taking-out vehicle body through a limiter, and the taking-out vehicle body is driven by the provided driving member to move into the quenching furnace. Then, the workpiece is taken out of the quenching furnace by the provided taking-out member, and the taking-out vehicle body is recovered to the forklift body, and the taking-out vehicle body and the workpiece are driven by the provided hoisting member to go down together to the quenching pool for quenching. The present invention solves the problem of too long cantilever of a forklift in a large-depth box-type furnace, avoids bulky structure, reduces manufacturing cost, and is economical and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the material taking vehicle body of the present invention;

[0024] Figure 3 It is a schematic diagram of the top surface of the driving member of the present invention;

[0025] Figure 4 It is a side schematic diagram of the driving member of the present invention;

[0026] Figure 5 This is a schematic diagram of the changes before and after the material taking vehicle body of the present invention is lifted;

[0027] Figure 6 This is a schematic diagram of the connection state of the lifting connection plate of the present invention;

[0028] Figure 7 This is a schematic diagram of the hanging basket of the present invention in the lowering state;

[0029] Figure 8 This is a schematic diagram of the top surface of the hanging basket of the present invention;

[0030] Among them, 1. forklift body; 2. quenching furnace; 3. material handling vehicle body; 4. moving wheel; 5. quenching pool; 6. front fork; 7. support frame; 8. lifting connecting plate; 9. connecting rod; 10. positioning pin; 11. threaded rod; 12. nut; 13. motor; 14. fork; 15. mounting frame; 16. winch; 17. hanging basket; 18. water leakage hole; 19. track; 20. groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figure 1-Figure 8 The present invention provides a large-depth box-type quenching furnace forklift, comprising:

[0034] The forklift body 1 moves laterally on the ground in front of the quenching furnace 2;

[0035] The material taking component includes a material taking vehicle body 3 and a material taking piece. The material taking vehicle body 3 is moved from the forklift body 1 to the quenching furnace 2. The material taking piece is arranged on the material taking vehicle body 3 and is used to take out the workpiece in the quenching furnace 2.

[0036] A driving assembly, comprising two driving members and two limiting members, wherein the two driving members are respectively arranged at two ends of the forklift body 1, and the two ends of the reclaiming vehicle body 3 are respectively connected to the two driving members through the two limiting members, and the driving members are used to drive the reclaiming vehicle body 3 to move on the forklift body 1;

[0037] The quenching assembly includes a plurality of lifting parts, which are respectively arranged on the forklift body 1 and are used to lift the material taking vehicle body 3 and the workpiece into the quenching pool 5 .

[0038] Specifically, the forklift body 1 moves horizontally on the ground in front of the quenching furnace 2, and the quenching pool 5 is below. When the workpiece is taken out, after the quenching furnace 2 is opened, the driving member is connected to the take-out vehicle body 3 through the limiter, and the take-out vehicle body 3 is driven by the set driving member to move into the quenching furnace 2, and then the workpiece is taken out of the quenching furnace 2 by the set take-out member, and the take-out vehicle body 3 is recovered to the forklift body 1, and the take-out vehicle body 3 and the workpiece are driven by the set hoisting member to go down to the quenching pool 5 together for quenching. This solves the problem of the forklift cantilever being too long in a deep box furnace, avoids a bulky structure, reduces manufacturing costs, and is economical and durable.

[0039] As an optional embodiment, the material picking device includes a plurality of front forks 6 installed on the material picking vehicle body 3, and the front forks 6 are adapted to the support frame 7 in the quenching furnace 2, and are used to remove the workpieces on the support frame 7.

[0040] In one embodiment of the present invention, the material taking vehicle body 3 is moved into the quenching furnace 2, and the workpiece placed on the support frame 7 is lifted and taken down by the front fork 6.

[0041] As an optional embodiment, a lifting connecting plate 8 is provided at the bottom end of the material picking vehicle body 3, and a plurality of movable wheels 4 are installed on the lifting connecting plate 8. The material picking vehicle body 3 is connected to the lifting connecting plate 8 through a connecting rod 9, and is configured so that when the lifting connecting plate 8 is limitedly connected to the forklift body 1 through a positioning pin 10, the driving member drives the material picking vehicle body 3 to move backward and lift, and the material picking vehicle body 3 contacts the bottom end of the workpiece after being lifted.

[0042] In one embodiment of the present invention, the positioning pin on the forklift body 1 is lifted upward to fix the lifting connecting plate 8. At this time, the moving wheel 4 cannot move forward and backward, and its connecting rod 9, the lifting connecting plate 8 and the material taking vehicle body 3 form a four-bar linkage. When the material taking vehicle body 3 is pulled backward under the tension of the lead screw, the material taking vehicle body will be horizontally lifted a certain distance and fixed, and the material taking vehicle body 3 will lift the workpiece off the support frame 7, and then the positioning pin is released downward to fix the lifting connecting plate 8, and the material taking vehicle body 3 and the workpiece are pulled out of the quenching furnace 2. On the contrary, the material taking vehicle body 3 will transport the workpiece into the furnace and put the workpiece in, forming a cycle.

[0043] As an optional embodiment, the driving member includes a threaded rod 11 rotatably connected to the forklift body 1, and a nut 12 is threadedly connected to the threaded rod 11. Grooves 20 are respectively provided at both ends of the material handling vehicle body 3. The nut 12 is connected to the groove 20 through a limit member. Two motors 13 are fixedly connected to the forklift body 1, and one end of the two threaded rods 11 is respectively fixedly connected to the output shafts of the two motors 13.

[0044] In one embodiment of the present invention, the motor 13 is provided to drive the threaded rod 11 to rotate, and the nut 12 is connected to the groove 20. When the threaded rod 11 rotates, the nut 12 is driven to move, thereby pushing the material taking vehicle body 3 to move forward and extend into the quenching furnace 2.

[0045] As an optional implementation, the limiting member includes a fork 14 installed on the nut 12 , and the fork 14 extends into the groove 20 .

[0046] In one embodiment of the present invention, when the material picking vehicle body 3 needs to be controlled, the fork 14 is moved into the groove 20 to achieve relative limitation between the material picking vehicle body 3 and the nut 12, thereby achieving control of the material picking vehicle body 3. When the workpiece needs to be quenched, the limitation is released to allow the material picking vehicle body 3 to descend into the quenching pool 5.

[0047] As an optional embodiment, the lifting component includes a mounting frame 15 fixedly connected to the top of the forklift body 1, a winch 16 is installed on the mounting frame 15, a steel wire rope on the winch 16 is connected to a hanging basket 17, a through hole is opened on the forklift body 1, the hanging basket 17 is adapted to the through hole, and the material picking vehicle body 3 is located on the hanging basket 17.

[0048] In one embodiment of the present invention, when the reclaiming vehicle body 3 is recovered onto the hanging basket 17 , the hanging basket 17 is driven to descend into the quenching pool 5 by the provided winch 16 .

[0049] As an optional implementation, a plurality of water leakage holes 18 are provided on the hanging basket 17 .

[0050] In one embodiment of the present invention, a water leakage hole 18 is opened on the hanging basket 17, so as to facilitate the quenching liquid to enter the workpiece area in time when the hanging basket 17 enters the quenching liquid.

[0051] As an optional implementation, tracks 19 are installed at the top of the hanging basket 17 and the bottom of the quenching furnace 2 , and the moving wheels 4 are adapted to the tracks 19 .

[0052] In one embodiment of the present invention, the track 19 is used to realize the movement of the material taking vehicle body 3. Specifically, the track 19 at the top of the hanging basket 17 and the track 19 inside the quenching furnace 2 are located in the same horizontal plane.

[0053] As an optional implementation, the material taking vehicle body 3 is a U-shaped structure.

[0054] In one embodiment of the present invention, referring to Figure 2 The feeding vehicle body 3 is a U-shaped structure. On the cross beam of the vehicle body, a plurality of front forks 6 are installed according to the width requirements of the vehicle body. The front forks 6 can be moved on the cross beam to adapt to the width between the quenching furnace 2 and the support frame 7. Specifically, multiple sets of moving wheels 4 and lifting connecting plates 8 can be installed on the feeding vehicle body 3 and the front forks 6. When working, the front forks 6 are lifted synchronously with the feeding vehicle body 3 for picking up and placing workpieces.

[0055] As an optional implementation, there are four winches 16 , which are respectively located at the four corners of the forklift body 1 .

[0056] In one embodiment of the present invention, the number of winches 16 is preferably four, which are respectively arranged at four corners and are used to be connected to the four corners of the hanging basket 17 to ensure the stable lowering and lifting of the hanging basket 17.

[0057] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A large-depth box-type quenching furnace forklift, characterized in that: include: The forklift body (1) moves laterally on the ground in front of the quenching furnace (2); A material taking component, comprising a material taking vehicle body (3) and a material taking piece, wherein the material taking vehicle body (3) moves from the forklift body (1) into the quenching furnace (2), and the material taking piece is arranged on the material taking vehicle body (3) and is used to take out the workpiece in the quenching furnace (2); A driving assembly, comprising two driving members and two limiting members, wherein the two driving members are respectively arranged at two ends of the forklift body (1), and the two ends of the material taking vehicle body (3) are respectively connected to the two driving members through the two limiting members, and the driving members are used to drive the material taking vehicle body (3) to move on the forklift body (1); The quenching assembly comprises a plurality of lifting parts, wherein the plurality of lifting parts are respectively arranged on the forklift body (1), and the plurality of lifting parts are used to lift the material taking vehicle body (3) and the workpiece into the quenching pool (5).

2. A large-depth box-type quenching furnace forklift according to claim 1, characterized in that: The material taking component comprises a plurality of front forks (6) mounted on the material taking vehicle body (3); the front forks (6) are matched with the support frame (7) in the quenching furnace (2) and are used to take the workpiece off the support frame (7).

3. A large-depth box-type quenching furnace forklift according to claim 2, characterized in that: A lifting connecting plate (8) is provided at the bottom end of the material picking vehicle body (3), and a plurality of movable wheels (4) are installed on the lifting connecting plate (8). The material picking vehicle body (3) is connected to the lifting connecting plate (8) via a connecting rod (9), and is configured such that when the lifting connecting plate (8) is limitedly connected to the forklift body (1) via a positioning pin (10), the driving member drives the material picking vehicle body (3) to move backward and lift up, and the material picking vehicle body (3) contacts the bottom end of the workpiece after being lifted.

4. A large-depth box-type quenching furnace forklift according to claim 3, characterized in that: The driving member comprises a threaded rod (11) rotatably connected to the forklift body (1), a nut (12) being threadedly connected to the threaded rod (11), grooves (20) being respectively provided at both ends of the material taking vehicle body (3), the nut (12) being connected to the grooves (20) via the limiter, two motors (13) being fixedly connected to the forklift body (1), and one end of the two threaded rods (11) being respectively fixedly connected to the output shafts of the two motors (13).

5. A large-depth box-type quenching furnace forklift according to claim 4, characterized in that: The limiting member comprises a fork (14) mounted on the nut (12), and the fork (14) extends into the groove (20).

6. The large-depth box-type quenching furnace forklift according to claim 3, characterized in that: The hoisting component comprises a mounting frame (15) fixedly connected to the top of the forklift body (1), a winch (16) is mounted on the mounting frame (15), a steel wire rope on the winch (16) is connected to a hanging basket (17), a through hole is opened on the forklift body (1), the hanging basket (17) is matched with the through hole, and the material retrieving vehicle body (3) is located on the hanging basket (17).

7. A large-depth box-type quenching furnace forklift according to claim 6, characterized in that: The hanging basket (17) is provided with a plurality of water leakage holes (18).

8. The large-depth box-type quenching furnace forklift according to claim 6, characterized in that: Tracks (19) are installed at the top of the hanging basket (17) and the bottom of the quenching furnace (2), and the moving wheels (4) are compatible with the tracks (19).

9. The large-depth box-type quenching furnace forklift according to claim 1, characterized in that: The material taking vehicle body (3) is a U-shaped structure.

10. The large-depth box-type quenching furnace forklift according to claim 6, characterized in that: There are four hoists (16), which are respectively located at the four corners of the forklift body (1).

Images