Single-double holding clamp for pulling calcium carbide lump

Abstract

The utility model provides a single-double holding clamp for pulling calcium carbide lumps, comprising: a mounting rack, the top of which is used for connecting a lifting device; the double-holding-clamp assembly comprises two clamping units used for carrying the calcium carbide pot; the two clamping units are hinged to the two opposite sides of the mounting frame respectively, each clamping unit is in axial symmetry relative to the mounting frame, and the parts, located on the same side of the mounting frame, of the two clamping units are connected through a connecting piece; the two single holding clamp arms are used for pulling out calcium carbide in the calcium carbide pot and are in axial symmetry about the mounting frame, and the two ends of each single holding clamp arm are hinged to the corresponding connecting piece and detachably connected with the corresponding connecting piece through the corresponding elastic piece. The single-double holding clamp can clamp a calcium carbide pot and a calcium carbide lump in the calcium carbide pot, so that the double-holding clamp assembly and the single-holding clamp arm are prevented from being replaced back and forth in the calcium carbide pot transferring process or the calcium carbide lump pulling-out process, and the operation time is saved; therefore, the transfer efficiency of the calcium carbide pot and the clamping and pulling-out efficiency of the calcium carbide lump in the calcium carbide pot are improved.

Description

Technical Field

[0001] The present application relates to the technical field of calcium carbide production, and particularly to a single and double gripping tong for calcium carbide lump extraction. Background Art

[0002] In the production process of calcium carbide, the calcium carbide furnace produces liquid calcium carbide with a temperature as high as 1800 - 2000 °C. The liquid calcium carbide is discharged from the calcium carbide furnace into a calcium carbide pot. A double gripping tong is suspended by a crane to transfer the calcium carbide pot filled with liquid calcium carbide. After the calcium carbide in the calcium carbide pot cools and forms a lump, a single gripping tong is suspended by a crane to clamp the cooled calcium carbide lump in the calcium carbide pot and pull out the calcium carbide lump from the calcium carbide pot for transfer to a calcium carbide stacking point. The emptied calcium carbide pot still needs to be transferred to the vicinity of the calcium carbide furnace by the double gripping tong for containing the liquid calcium carbide discharged from the calcium carbide furnace.

[0003] Since the above operation process requires frequent switching between the double gripping tong and the single gripping tong, the processes such as the cooling of calcium carbide, the extraction and transfer of calcium carbide lumps, and the transfer of calcium carbide pots take a long time, thereby reducing the transfer efficiency of calcium carbide pots and calcium carbide lumps. Therefore, the present application proposes a single and double gripping tong for calcium carbide lump extraction. Utility Model Content

[0004] The present application provides a single and double gripping tong for calcium carbide lump extraction to solve the technical problems described in the above background art.

[0005] To solve the above technical problems, the present application adopts the following technical solutions:

[0006] The present application provides a single and double gripping tong for calcium carbide lump extraction, including:

[0007] A mounting frame, the top of the mounting frame is used to connect a lifting device;

[0008] A double gripping tong assembly, the double gripping tong assembly includes two clamping units for carrying calcium carbide pots; the two clamping units are respectively hinged on opposite sides of the mounting frame, each clamping unit is axisymmetric about the mounting frame, and the parts of the two clamping units on the same side of the mounting frame are connected by a connecting member;

[0009] Two single gripping tong arms, the two single gripping tong arms are used to pull out the calcium carbide in the calcium carbide pot and are axisymmetric about the mounting frame, and both ends of each single gripping tong arm are respectively hinged to the connecting member and detachably connected to the connecting member through an elastic member.

[0010] Optionally, each clamping unit includes two first connecting rods and two double gripping tong arms corresponding to the two first connecting rods one by one;

[0011] Both of the first link rods are hinged to the mounting bracket, the two double clamping arms are cross-hinged, and one end of each double clamping arm is hinged to the end of the corresponding first link rod away from the mounting bracket.

[0012] Optionally, the bottoms of the two double clamping arms in each clamping unit are both in the shape of barbs facing the symmetry axis of the two double clamping arms.

[0013] Optionally, the cross-hinged point of the two double clamping arms is at a first preset distance from the end of the first link rod away from the mounting bracket, and the cross-hinged point of the two double clamping arms is at a second preset distance from the bottom end of the double clamping arm, and the second preset distance is greater than the first preset distance.

[0014] Optionally, the connecting member includes two connecting plates that are successively away from the mounting bracket and spaced apart by a third preset distance;

[0015] Both ends of each connecting plate are respectively connected to the top surfaces of the two clamping units on the same side of the mounting bracket.

[0016] Optionally, a second link rod is hinged to the arm body of each single clamping arm near its bottom end, and the end of the second link rod away from the single clamping arm is hinged to the connecting member.

[0017] Optionally, the bottoms of the two single clamping arms are both in the shape of chamfers facing the symmetry axis of the two single clamping arms.

[0018] Optionally, one end of the elastic member is connected to one end of the single clamping arm, a hook is provided at the other end of the elastic member, and a hanging ring matching the hook is provided on the connecting member.

[0019] Optionally, a handle is provided on the single clamping arm near its bottom end.

[0020] Optionally, a lifting lug is provided at the top of the mounting bracket.

[0021] The single and double clamping pliers for removing calcium carbide lumps provided by this application are such that both ends of each single clamping plier arm are respectively hinged to a connecting member and detachably connected to the connecting member through an elastic member. When it is necessary to clamp a calcium carbide pot, one end of the single clamping plier is connected to the connecting member through the elastic member. When the lifting device drives the mounting frame to move downward, the bottom end of the double clamping plier assembly touches the edge of the calcium carbide pot earlier than the bottom end of the single clamping plier arm. Then, when the lifting device drives the mounting frame to move upward, during the upward movement of the mounting frame, the bottom end of the double clamping plier assembly gradually clamps the edge of the calcium carbide pot, realizing the clamping of the calcium carbide pot. In addition, when it is necessary to clamp the calcium carbide lumps in the calcium carbide pot, the elastic member is removed from the connecting member to separate one end of the single clamping plier arm from the connecting member. When the lifting device drives the mounting frame to move downward, the bottom end of the single clamping plier arm is lower than the bottom end of the double clamping plier assembly. The bottom end of the single clamping plier arm first enters the calcium carbide pot through the notch on the calcium carbide pot and clamps onto the calcium carbide lumps. Then, the lifting device drives the mounting frame to move upward. During the upward movement of the mounting frame, the bottom ends of the two single clamping plier arms gradually clamp the calcium carbide lumps until the calcium carbide lumps are pulled out of the calcium carbide pot. By integrating the single clamping plier arms onto the double clamping plier assembly, this application realizes the clamping of the calcium carbide pot by the single and double clamping pliers and the clamping of the calcium carbide lumps in the calcium carbide pot, avoiding the need to repeatedly replace the double clamping plier assembly and the single clamping plier arms during the transportation of the calcium carbide pot or the extraction of the calcium carbide lumps, saving operation time, and thus improving the transportation efficiency of the calcium carbide pot and the clamping and extraction efficiency of the calcium carbide lumps in the calcium carbide pot. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the single and double clamping pliers for removing calcium carbide lumps provided by an embodiment of this application;

[0024] Figure 2 It is a front view of the single and double clamping pliers for removing calcium carbide lumps provided by an embodiment of this application;

[0025] Figure 3 It is a schematic structural diagram of the elastic member, with a hook provided on the elastic member and a hanging ring provided on the connecting plate.

[0026] In the figure: 100, mounting bracket; 101, lifting lug; 200, double gripping pliers assembly; 201, gripping unit; 2011, first connecting rod; 2012, double gripping pliers arm; 300, calcium carbide pot; 400, connecting piece; 401, connecting plate; 402, hanging ring; 500, single gripping pliers arm; 501, second connecting rod; 502, handle; 600, elastic member; 601, hook. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts also belong to the scope of protection of the present application.

[0028] Refer to Figures 1 to 3 , the present application provides a single and double gripping pliers for calcium carbide extraction, including:

[0029] A mounting bracket 100, the top of the mounting bracket 100 is used to connect a lifting device; wherein, the lifting device can be a crane, the purpose of which is to lift or lower the mounting bracket 100 to realize the adjustment of the distance between the bottom end of the mounting bracket 100 and the reference surface. The type of the lifting device can be selected according to actual needs. Therefore, the present application does not make specific limitations on it here.

[0030] A double gripping pliers assembly 200, the double gripping pliers assembly 200 includes two gripping units 201 for carrying a calcium carbide pot 300; the two gripping units 201 are respectively hinged on opposite sides of the mounting bracket 100, each gripping unit 201 is axisymmetric about the mounting bracket 100, and the parts of the two gripping units 201 on the same side of the mounting bracket 100 are connected by a connecting piece 400; wherein, the two gripping units 201 improve the stability of gripping the calcium carbide pot 300, and connecting the two gripping units 201 together by the connecting piece 400 ensures the synchronism of gripping the calcium carbide pot 300 by the two gripping units 201 during the telescopic process of the lifting device, and improves the gripping efficiency of the calcium carbide pot 300.

[0031] Two single clamping arms 500 are used to pull out calcium carbide from the calcium carbide pot 300 and are axisymmetric about the mounting frame 100. Both ends of each single clamping arm 500 are respectively hinged to the connecting member 400 and detachably connected to the connecting member 400 through an elastic member 600. Among them, when one end of the single clamping arm 500 is connected to the connecting member 400 through the elastic member 600, the bottom end of each single clamping arm 500 is higher than the bottom ends of the two clamping units 201 (here, the top of the calcium carbide pot 300 is used as the reference benchmark), so as to ensure that the bottom ends of the two clamping units 201 in the double clamping pliers assembly 200 first clamp the edge of the calcium carbide pot 300; when the elastic member 600 at one end of the single clamping arm 500 is removed from the connecting member 400, the bottom end of each single clamping arm 500 is lower than the bottom ends of the two clamping units 201, so as to ensure that during the downward movement of the lifting device, the bottom end of the single clamping arm 500 first clamps the calcium carbide mass.

[0032] For the single and double clamping pliers for pulling calcium carbide provided in this application, by respectively hinging both ends of each single clamping arm 500 to the connecting member 400 and detachably connecting to the connecting member 400 through the elastic member 600, when it is necessary to clamp the calcium carbide pot 300, one end of the single clamping arm 500 is connected to the connecting member 400 through the elastic member 600. When the lifting device drives the mounting frame 100 to move downward, compared with the bottom end of the single clamping arm 500, the bottom ends of the two clamping units 201 in the double clamping pliers assembly 200 first contact the edge of the calcium carbide pot 300, and then the lifting device drives the mounting frame 100 to move upward. During the upward movement of the mounting frame 100, the bottom ends of the two clamping units 201 gradually clamp the edge of the calcium carbide pot 300, realizing the clamping of the calcium carbide pot 300. In addition, when it is necessary to clamp the calcium carbide mass in the calcium carbide pot 300, the elastic member 600 is removed from the connecting member 400 to separate one end of the single clamping arm 500 from the connecting member 400, so that when the lifting device drives the mounting frame 100 to move downward, the bottom end of the single clamping arm 500 is lower than the bottom ends of the two clamping units 201, enabling the bottom end of the single clamping arm 500 to first enter the calcium carbide pot 300 through the notch on the calcium carbide pot 300 and clamp the calcium carbide mass, and then the lifting device drives the mounting frame 100 to move upward. During the upward movement of the mounting frame 100, the bottom ends of the two single clamping arms 500 gradually clamp the calcium carbide mass until the calcium carbide mass is pulled out of the calcium carbide pot 300. By integrating the single clamping arm 500 on the double clamping pliers assembly 200, this application realizes the clamping of the calcium carbide pot 300 by the double clamping pliers assembly 200 and the clamping of the calcium carbide mass in the calcium carbide pot 300 by the single clamping arm 500, avoiding the need to replace the double clamping pliers assembly 200 and the single clamping arm 500 back and forth during the transportation of the calcium carbide pot 300 or the pulling out of the calcium carbide mass, saving operation time, and thus improving the transportation efficiency of the calcium carbide pot 300 and the clamping and pulling out efficiency of the calcium carbide mass in the calcium carbide pot 300.

[0033] In some embodiments, referring to Figure 1 and Figure 2 , each clamping unit 201 in the present application includes two first link rods 2011 and two double clamping arms 2012 corresponding to the two first link rods 2011 one by one; specifically, the two first link rods 2011 are both hinged on the mounting frame 100, the two double clamping arms 2012 are cross-hinged, and one end of each double clamping arm 2012 is hinged to the end of the corresponding first link rod 2011 far from the mounting frame 100.

[0034] In the above embodiment, during the descending process of the lifting device, downward forces are respectively generated on the two first link rods 2011, so that the two first link rods 2011 move away from each other and gradually open, thereby realizing the gradual opening of the two double clamping arms 2012. When the bottoms of the two double clamping arms 2012 clamp the edge of the calcium carbide pot 300, then the two first link rods 2011 are made to approach each other by the lifting of the lifting device, so that the bottoms of the two double clamping arms 2012 gradually clamp the edge of the calcium carbide pot 300, and the calcium carbide pot 300 is driven away from the reference surface by the lifting device, thereby realizing the transfer of the calcium carbide pot 300.

[0035] In some embodiments, referring to Figure 1 , Figure 2 and Figure 3 , the bottoms of the two double clamping arms 2012 in each clamping unit 201 in the present application are both in the shape of barbs facing the symmetry axis of the two double clamping arms 2012, so that during the descending process of the bottom of the clamping unit 201, the bottoms of the two clamping units 201 are more likely to clamp the calcium carbide pot 300, thereby improving the clamping efficiency of the calcium carbide pot 300.

[0036] In some embodiments, referring to Figure 1 , the cross-hinged point of the two double clamping arms 2012 in the present application is at a first preset distance from the end of the first link rod 2011 far from the mounting frame 100, and the cross-hinged point of the two double clamping arms 2012 is at a second preset distance from the bottom end of the double clamping arm 2012. The second preset distance is greater than the first preset distance, so that the double clamping arm 2012 can clamp the calcium carbide pot 300 with a larger pot mouth, thereby improving the wide applicability of the double clamping arm 2012.

[0037] It should be specifically noted here that the specific values of the first preset distance and the second preset distance can be set according to actual needs, and the present application does not make specific limitations on them here.

[0038] In some embodiments, referring to Figure 1, the connecting member 400 in this application includes two connecting plates 401 that are successively away from the mounting bracket 100 and spaced apart by a third preset distance (which can be specifically set according to actual needs, and this application does not specifically limit it here); specifically, both ends of each connecting plate 401 are respectively connected to the top surfaces of the two clamping units 201 on the same side of the mounting bracket 100.

[0039] In the above embodiment, the arrangement of the connecting plate 401 fixes the two clamping units 201 together, realizing the synchronous operation of the two clamping units 201 during the clamping process of the calcium carbide pot 300, ensuring the stability of the clamping process of the clamping unit 201 for the calcium carbide pot 300, and improving the clamping efficiency of the calcium carbide pot 300.

[0040] In some embodiments, referring to Figure 3 , a second connecting rod 501 is hinged to the arm body of each single clamping arm 500 near its bottom end. The end of the second connecting rod 501 away from the single clamping arm 500 is hinged to the connecting member 400. This avoids the situation where after the free end of the elastic member 600 is connected to the connecting member 400, the single clamping arm 500 cannot be lifted to ensure that the bottom end of the single clamping arm 500 is higher than the bottom end of the clamping unit 201 (here, it is relative to the top of the calcium carbide pot), thereby ensuring the independence of the clamping process of the clamping unit 201 for the calcium carbide pot 300 and the clamping process of the single clamping arm 500 for the calcium carbide lump.

[0041] In some embodiments, referring to Figure 1 , Figure 2 and Figure 3 , the bottom ends of the two single clamping arms 500 in this application are both chamfered toward the axis of symmetry of the two single clamping arms 500. In this way, when the bottom ends of the single clamping arms 500 are descending, the bottom ends of the two single clamping arms 500 are more likely to clamp the calcium carbide lump, thereby improving the clamping efficiency of the calcium carbide lump.

[0042] In some embodiments, referring to Figure 3 , one end of the elastic member 600 in this application is connected to one end of the single clamping arm 500, and a hook 601 is provided at the other end of the elastic member 600. A hanging ring 402 matching the hook 601 is provided on the connecting member 400. Among them, the elastic member 600 can be a tension spring, and the purpose is to adjust the distance between the bottom end of the single clamping arm 500 and the top end of the calcium carbide pot 300 through the elastic member 600. Therefore, the elastic member 600 can be specifically set according to actual needs, and this application does not specifically limit it here.

[0043] In the above embodiment, pulling up the end of the elastic member 600 provided with the hook 601 and hanging it on the hanging ring 402 on the connecting member 400 realizes the detachable connection between the free end of the elastic member 600 and the connecting member 400, improving the convenience of connecting the free end of the elastic member 600 to the connecting member 400.

[0044] In some embodiments, referring to Figure 3 , a handle 502 is provided near the bottom end of the single gripper arm 500 in the present application. Among them, the setting of the handle 502 facilitates pulling up the arm body near the bottom end of the single gripper arm 500, so that one end of the elastic member 600 detachably connected to the connecting member 400 is connected to the connecting member 400.

[0045] In some embodiments, referring to Figure 1 and Figure 2 , a lifting lug 101 is provided at the top of the mounting bracket 100 in the present application. Among them, a hook is provided at the bottom end of the lifting device, and the lifting lug 101 facilitates the connection between the lifting device and the mounting bracket 100, improving the convenience of connecting the lifting device and the mounting bracket 100.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A single and double clamp for calcium carbide lump extraction, characterized in that: include: A mounting frame (100), the top of the mounting frame (100) being used to connect a lifting device; A double clamp assembly (200), the double clamp assembly (200) comprising two clamping units (201) for carrying an electric stone pot (300); the two clamping units (201) are respectively hinged on opposite sides of the mounting frame (100), each clamping unit (201) is symmetrical about the axis of the mounting frame (100), and the parts of the two clamping units (201) located on the same side of the mounting frame (100) are connected by a connecting piece (400); Two single clamp arms (500), the two single clamp arms (500) are used to pull out the calcium carbide in the calcium carbide pot (300) and are symmetrical about the axis of the mounting frame (100), and both ends of each single clamp arm (500) are respectively hinged to the connecting piece (400) and are detachably connected to the connecting piece (400) through an elastic piece (600).

2. The single and double clamps for extracting calcium carbide according to claim 1 are characterized in that: Each of the clamping units (201) comprises two first connecting rods (2011) and two double clamp arms (2012) corresponding one-to-one to the two first connecting rods (2011); The two first connecting rods (2011) are both hinged on the mounting frame (100), the two double clamp arms (2012) are cross-hinged, and one end of each double clamp arm (2012) is hinged to an end of the first connecting rod (2011) corresponding thereto, which is away from the mounting frame (100).

3. The single and double clamps for extracting calcium carbide according to claim 2 are characterized in that: The bottom ends of the two double-clamp arms (2012) in each of the clamping units (201) are both in a barb shape facing the symmetry axis of the two double-clamp arms (2012).

4. The single and double clamps for extracting calcium carbide according to claim 2 are characterized in that: The cross-hinged point of the two double-clamp arms (2012) is at a first preset distance (700) from one end of the first connecting rod (2011) away from the mounting frame (100), and the cross-hinged point of the two double-clamp arms (2012) is at a second preset distance (800) from the bottom end of the double-clamp arms (2012), and the second preset distance (800) is greater than the first preset distance (700).

5. The single and double clamps for extracting calcium carbide according to claim 1 are characterized in that: The connecting member (400) comprises two connecting plates (401) which are sequentially away from the mounting frame (100) and are spaced apart by a third preset distance (900); Both ends of each connecting plate (401) are respectively connected to the top surfaces of the two clamping units (201) located on the same side of the mounting frame (100).

6. The single and double clamps for extracting calcium carbide according to claim 1 are characterized in that: A second connecting rod (501) is hingedly connected to the arm body of each single clamp arm (500) near its bottom end, and one end of the second connecting rod (501) away from the single clamp arm (500) is hingedly connected to the connecting piece (400).

7. The single and double clamps for extracting calcium carbide according to claim 1 are characterized in that: The bottom ends of the two single clamp arms (500) are both chamfered toward the symmetry axes of the two single clamp arms.

8. The single and double clamps for extracting calcium carbide according to claim 1 are characterized in that: One end of the elastic member (600) is connected to one end of the single clamp arm (500), the other end of the elastic member (600) is provided with a hook (601), and the connecting member (400) is provided with a hanging ring (402) matching the hook (601).

9. The single-double clamp for pulling out calcium carbide according to any one of claims 1 to 8, characterized in that: The single clamp arm (500) is provided with a handle (502) near the bottom end thereof.

10. The single-double clamp for pulling out calcium carbide according to any one of claims 1 to 8, characterized in that: The top of the mounting frame (100) is provided with a lifting lug (101).

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