Multi-material anti-loose combined heavy hammer

Abstract

The utility model discloses a multi-material anti-loose combined heavy hammer which comprises a hammer body, the hammer body extends in the first direction, the two ends of the hammer body are the first end and the second end respectively, a containing groove is formed in the second end, and threads are arranged on the circumferential inner wall of the containing groove; the hammer head is arranged at the second end, an installation protrusion is arranged on the side wall, close to the hammer body, of the hammer head, threads are arranged on the circumferential outer wall of the installation protrusion, the installation protrusion is matched with the containing groove, and the threads are connected into the containing groove; the anti-loosening structure comprises an anti-loosening pin, and the anti-loosening pin is arranged at the contact part of the hammer body and the outer wall of the hammer head and is used for preventing the hammer head from loosening and falling off caused by reverse rotation of the hammer head and the hammer body; compared with a traditional integrated heavy hammer structure, through the split type structure, the hammer head can be conveniently disassembled and replaced when damaged, the cost is effectively saved, and through the arrangement of the anti-loosening pin, the situation that the hammer head is loosened and falls off due to reverse rotation between the hammer head and the hammer body can be avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of single-crystal silicon crystal growth furnaces, and particularly relates to a multi-material anti-loosening combined weight. Background Art

[0002] The molybdenum weight is applied in a single-crystal silicon crystal growth furnace and is hung at the lower end of a suspension rope, playing a role in stabilizing the verticality during the lifting process. The lower end of the molybdenum weight works in a high-temperature area of about 1300 °C for a long time. Therefore, the high-melting-point molybdenum material has become the preferred material for the weight. With the booming development of solar power generation, the demand for molybdenum weights is increasing, and there is an urgent requirement to reduce the cost of the weights and reduce the loss of rare molybdenum materials.

[0003] In recent years, weights composed of a simple combination of molybdenum as the basic material and other materials have been continuously put into trial use, but they have all had poor effects because the thermal expansion and contraction matching relationship between the components of the weight has not been well handled. Tungsten-based high specific gravity and 310S stainless steel have well solved the thermal expansion and contraction matching relationship, greatly extending the service life of the combined weight. However, since the weight is a split structure, it is easy for the hammer body and the tungsten-based high specific gravity hammer head to loosen and fall off, resulting in damage to the weight. For this reason, we propose a multi-material anti-loosening combined weight. Summary of the Invention

[0004] In view of the above defects or deficiencies in the prior art, it is desired to provide a multi-material anti-loosening combined weight.

[0005] In a first aspect, the present application provides a multi-material anti-loosening combined weight, including:

[0006] A hammer body, which extends along a first direction, with two ends being a first end and a second end respectively, and a receiving groove is provided at the second end, and the circumferential inner wall of the receiving groove is provided with threads;

[0007] A hammer head, which is arranged at the second end, and an installation protrusion is provided on the side wall of the hammer head close to the hammer body, which is adapted to the receiving groove, and threads are correspondingly provided on the circumferential outer wall of the installation protrusion, and the installation protrusion is threadedly connected in the receiving groove;

[0008] An anti-loosening structure, which includes an anti-loosening pin, which is arranged at the position where the outer walls of the hammer body and the hammer head are in contact, and is used to prevent loosening and falling off caused by the reverse rotation of the hammer body and the hammer head.

[0009] According to the technical solution provided by the embodiment of the present application, the anti-loosening structure further includes an anti-loosening hole. A first groove is provided on the outer wall of the second end, and a second groove is correspondingly provided on the outer wall of the hammer head for the first groove. The first groove and the second groove are butted to form the anti-loosening hole, and the anti-loosening pin is arranged in the anti-loosening hole.

[0010] According to the technical solution provided by the embodiment of the present application, the anti-loosening structure further includes a protective ring. A thread is further provided on the outer wall of the hammer head in the circumferential direction. A corresponding thread is provided on the inner wall of the protective ring. The protective ring and the hammer head are threadedly sleeved, and the inner wall of the protective ring abuts against the outer wall of the second end and the anti-loosening pin.

[0011] According to the technical solution provided by the embodiment of the present application, a connection structure is further included. The connection structure includes a gland. The gland and the hammer body are coaxially arranged. An installation hole is provided through the gland along the first direction. A corresponding installation groove is provided at the first end for the installation hole. An installation member is arranged in the installation hole, and the installation member penetrates through the installation hole and extends into the installation groove. A locking member is arranged on the installation member.

[0012] According to the technical solution provided by the embodiment of the present application, an opening sleeve is sleeved inside the gland and is coaxial with the hammer body. The opening sleeve sequentially has a first section, a transition section, and a second section along the first direction. The second section is relatively closer to the first end, and the diameter of the second section is larger than that of the first section.

[0013] A first accommodation channel adapted to the opening sleeve is provided on the gland. The first accommodation channel includes a first accommodation cavity, a second accommodation cavity, and a third accommodation cavity that are sequentially communicated, and respectively adapt to the first section, the transition section, and the second section.

[0014] According to the technical solution provided by the embodiment of the present application, a ball head member is sleeved inside the opening sleeve. The ball head member has a ball head and a connection section. The ball head is relatively closer to the first end, and the diameter of the ball head is larger than that of the connection section. A second accommodation channel adapted to the ball head member is provided through the opening sleeve. The second accommodation channel includes a fourth accommodation cavity and a fifth accommodation cavity that are sequentially communicated, and respectively adapt to the connection section and the ball head.

[0015] According to the technical solution provided by the embodiment of the present application, a third groove is provided at the first end. The third groove and the fifth accommodation cavity form an accommodation space for accommodating the ball head. A tungsten wire rope is provided on the ball head member, and the tungsten wire rope penetrates through the second accommodation channel and extends outside the connection structure.

[0016] According to the technical solution provided by the embodiment of the present application, the hammer body, the protective ring, the gland, the opening sleeve, the installation member, and the locking member are all made of stainless steel. The hammer head is made of tungsten-based high specific gravity alloy, and the anti-loosening pin is made of lanthanum yttrium molybdenum alloy.

[0017] In summary, the present technical solution specifically discloses a multi-material anti-loosening combined weight, which includes a weight body extending along a first direction, with its two ends being a first end and a second end respectively. A receiving groove is provided at the second end, and a thread is provided on the circumferential inner wall of the receiving groove; a hammer head is provided at the second end, and an installation protrusion is provided on the side wall of the hammer head close to the weight body. A thread is provided on the circumferential outer wall of the installation protrusion. The installation protrusion and the receiving groove are adapted to each other, and are threadedly connected in the receiving groove; an anti-loosening structure, which includes an anti-loosening pin, and the anti-loosening pin is provided at the part where the outer walls of the weight body and the hammer head are in contact, and is used to prevent the hammer head from loosening and falling off due to the reverse rotation of the hammer head and the weight body.

[0018] Through the split structure, the multi-material anti-loosening combined weight can be conveniently disassembled and replaced when the hammer head is damaged. Compared with the traditional integral weight structure, the cost is effectively saved, and through the setting of the anti-loosening pin, the loosening of the connection between the hammer head and the weight body can be avoided, resulting in the hammer head falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0020] Figure 1 It is a schematic structural diagram of a multi-material anti-loosening combined weight.

[0021] Reference numerals in the figure: 1, weight body; 2, hammer head; 3, installation protrusion; 4, anti-loosening pin; 5, protective ring; 6, gland; 7, mounting member; 8, locking member; 9, split sleeve; 10, ball head member; 11, tungsten wire rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the sake of convenience of description, only the parts related to the invention are shown in the drawings.

[0023] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0024] Embodiment 1

[0025] Please refer to Figure 1 the schematic structural diagram of a multi-material anti-loosening combined weight shown in, a multi-material anti-loosening combined weight includes a weight body 1, the weight body 1 extends along a first direction, and its two ends are a first end and a second end respectively, and a hammer head 2 is provided at the second end; the first direction is Figure 1 the horizontal direction in

[0026] Specifically, a receiving groove is formed at the second end, and the receiving groove is coaxial with the hammer body 1. An installation protrusion 3 is provided on the side wall of the hammer head 2 close to the hammer body 1, which is adapted to the receiving groove. Threads are provided on the circumferential inner wall of the receiving groove, and corresponding threads are provided on the circumferential outer wall of the installation protrusion 3. Thus, the installation protrusion 3 is threadedly connected to the receiving groove;

[0027] It should be noted that during the working process, the heavy hammer needs to lift the single crystal silicon on one side and rotate continuously on the other side. Therefore, the thread direction of the installation protrusion 3 and the receiving groove is opposite to the rotation direction of the heavy hammer, which can prevent the installation protrusion 3 and the receiving groove from loosening and falling off.

[0028] A loosening prevention structure for preventing the hammer head 2 from loosening and falling off;

[0029] Specifically, the loosening prevention structure includes a loosening prevention hole. Two first grooves are symmetrically formed on the outer wall of the second end. Two second grooves are formed on the outer wall of the hammer head 2 corresponding to the two first grooves. After the hammer head 2 and the hammer body 1 are threadedly connected, the first groove and the second groove are docked to form a loosening prevention hole. The loosening prevention structure further includes a loosening prevention pin 4, and the loosening prevention pin 4 is arranged in the loosening prevention hole. Thus, relative rotation between the hammer head 2 and the hammer body 1 can be avoided, and loosening and falling off of the hammer head 2 caused by reverse rotation of the hammer head 2 and the hammer body 1 can be avoided;

[0030] Furthermore, the loosening prevention structure further includes a protective ring 5, which is sleeved on the outer wall of the joint of the hammer head 2 and the hammer body 1;

[0031] Specifically, threads are further provided on the circumferential outer wall of the end of the hammer head 2 close to the hammer body 1, and corresponding threads are provided on the circumferential inner wall of the protective ring 5. The protective ring 5 is threadedly sleeved on the hammer head 2, and the inner wall of the protective ring 5 abuts against the circumferential outer wall of the second end and abuts against the loosening prevention pin 4. Thus, the loosening prevention pin 4 can be protected.

[0032] A connecting structure is arranged at the first end. The connecting structure includes a ball head member 10, which extends along the first direction and is coaxial with the hammer body 1. The ball head member 10 includes a connecting section and a ball head that are fixedly connected. The ball head is relatively close to the first end, and the diameter of the ball head is larger than the diameter of the connecting section;

[0033] Furthermore, the connecting structure further includes an opening sleeve 9, which is sleeved on the outer wall of the ball head member 10. The opening sleeve 9 is coaxially arranged with the hammer body 1, and a second receiving channel is formed through the opening sleeve 9 along the first direction. The second receiving channel includes a fourth receiving cavity and a fifth receiving cavity that are connected in sequence along the first direction. The fourth receiving cavity is adapted to the connecting section, and the fifth receiving cavity is adapted to the ball head. A third groove is formed at the first end, and the third groove and the fifth receiving cavity together form a receiving space that can receive the ball head;

[0034] Further, the split sleeve 9 extends in the first direction and has a first section, a transition section, and a second section that are fixedly connected in sequence. The second section is relatively closer to the first end, and the diameter of the second section is larger than that of the first section. The first section and the second section are connected by the transition section;

[0035] Further, the connecting structure further includes a gland 6. The gland 6 is coaxial with the hammer body 1 and sleeved on the split sleeve 9. A first receiving channel is formed through the gland 6 along the first direction. The first receiving channel includes a first receiving cavity, a second receiving cavity, and a third receiving cavity that are communicated in sequence. Among them, the first receiving cavity is adapted to the first section, the second receiving cavity is adapted to the transition section, and the third receiving cavity is adapted to the second section;

[0036] Further, mounting holes are formed through the gland 6 along the first direction. Optionally, there are three mounting holes evenly distributed circumferentially. Correspondingly, three mounting grooves are formed circumferentially on the first end. The mounting member 7 passes through the mounting holes and extends into the mounting grooves, and a locking member 8 is also sleeved on the mounting member 7 and is located on the side of the gland 6 away from the hammer body 1;

[0037] Optionally, the mounting member 7 is a screw and the locking member 8 is a nut.

[0038] A tungsten wire rope 11 is arranged on the ball head member 10. One end of the tungsten wire rope 11 away from the ball head member 10 extends through the second receiving channel in the direction away from the hammer body 1 and extends to the outside of the connecting structure.

[0039] It should be noted that the hammer body 1, the protective ring 5, the gland 6, the split sleeve 9, the mounting member 7, and the locking member 8 are all made of stainless steel, and the stainless steel model is 310S; the hammer head 2 is made of tungsten-based high specific gravity alloy; the anti-loosening pin 4 is made of lanthanum-yttrium-molybdenum alloy.

[0040] Working principle: The hammer body 1 and the hammer head 2 are assembled by screwing the mounting protrusion 3 into the receiving groove, and an anti-loosening structure is used to prevent the hammer head 2 from loosening and falling off due to the reverse rotation of the hammer body 1 and the hammer head 2; a multi-material anti-loosening combined heavy hammer proposed in this application is more convenient for replacing the hammer head 2 compared with the traditional integral heavy hammer. During long-term work, if the hammer head 2 is damaged, the hammer head 2 can be quickly disassembled, while the hammer body 1 can still continue to be used and will not be scrapped as a whole. The hammer head 2 made of tungsten-based high specific gravity alloy has a similar thermal expansion coefficient to the hammer body 1 made of 310S stainless steel to match the thermal expansion and contraction relationship between them; compared with molybdenum material, the stainless steel material has a lower cost, which can reduce the production cost. At the same time, the protective ring 5 can effectively protect the molybdenum material anti-loosening pin 4 from being knocked. The molybdenum material anti-loosening pin 4 has a small expansion coefficient, which can prevent the heavy hammer from bursting, increasing the use stability of the heavy hammer, increasing customer satisfaction, and effectively preventing mistakes.

[0041] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. A multi-material anti-loosening combined weight, characterized in that: include: A hammer body (1), the hammer body (1) extending in a first direction, having two ends respectively a first end and a second end, and the second end is provided with a receiving groove, and a circumferential inner wall of the receiving groove is provided with a thread; A hammer head (2), the hammer head (2) being arranged at the second end, a mounting protrusion (3) being arranged on the side wall of the hammer head (2) close to the hammer body (1), which is adapted to the receiving groove, and a thread is correspondingly arranged on the circumferential outer wall of the mounting protrusion (3), and the mounting protrusion (3) is threadedly connected in the receiving groove; The anti-loosening structure comprises an anti-loosening pin (4) which is arranged at a position where the outer walls of the hammer body (1) and the hammer head (2) contact each other, and is used to prevent the hammer body (1) and the hammer head (2) from loosening and falling off due to reverse rotation.

2. A multi-material anti-loosening combined weight according to claim 1, characterized in that: The anti-loosening structure also includes an anti-loosening hole, the outer wall of the second end is provided with a first groove, the outer wall of the hammer head (2) is provided with a second groove corresponding to the first groove, the first groove and the second groove are connected to form the anti-loosening hole, and the anti-loosening pin (4) is arranged in the anti-loosening hole.

3. A multi-material anti-loosening combined weight according to claim 2, characterized in that: The anti-loosening structure also includes a protective ring (5), the circumferential outer wall of the hammer head (2) is also provided with threads, the inner wall of the protective ring (5) is correspondingly provided with threads, the protective ring (5) and the hammer head (2) are threadedly sleeved, and the inner wall of the protective ring (5) abuts against the second end outer wall and the anti-loosening pin (4).

4. A multi-material anti-loosening combined weight according to claim 3, characterized in that: The invention also comprises a connection structure, wherein the connection structure comprises a pressure cover (6), the pressure cover (6) and the hammer body (1) are coaxially arranged, a mounting hole is formed on the pressure cover (6) along the first direction, a mounting groove is formed at the first end corresponding to the mounting hole, a mounting member (7) is arranged in the mounting hole, and the mounting member (7) extends through the mounting hole into the mounting groove, and a locking member (8) is arranged on the mounting member (7).

5. The multi-material anti-loosening combined weight according to claim 4, characterized in that: An open sleeve (9) is sleeved inside the gland (6) and is coaxial with the hammer body (1). The open sleeve (9) has a first section, a transition section and a second section in sequence along the first direction. The second section is relatively close to the first end and has a diameter greater than that of the first section. The gland (6) is provided with a first accommodating channel adapted to the open sleeve (9), wherein the first accommodating channel comprises a first accommodating cavity, a second accommodating cavity and a third accommodating cavity which are connected in sequence and adapted to the first section, the transition section and the second section respectively.

6. The multi-material anti-loosening combined weight according to claim 5, characterized in that: A ball head component (10) is sleeved in the open sleeve (9), and the ball head component (10) has a ball head and a connecting section. The ball head is relatively close to the first end, and the diameter of the ball head is larger than the diameter of the connecting section. A second accommodating channel adapted to the ball head component (10) is penetrated through the open sleeve (9), and the second accommodating channel includes a fourth accommodating chamber and a fifth accommodating chamber which are connected in sequence and are adapted to the connecting section and the ball head respectively.

7. The multi-material anti-loosening combined weight according to claim 6, characterized in that: The first end is provided with a third groove, and the third groove and the fifth accommodating cavity form an accommodating space for accommodating the ball head. A tungsten wire rope (11) is arranged on the ball head member (10), and the tungsten wire rope (11) passes through the second accommodating channel and extends to the outside of the connecting structure.

8. The multi-material anti-loosening combined weight according to claim 6, characterized in that: The hammer body (1), the protective ring (5), the pressure cover (6), the opening sleeve (9), the mounting piece (7) and the locking piece (8) are all made of stainless steel, the hammer head (2) is a tungsten-based high-density alloy, and the anti-loosening pin (4) is a lanthanum-yttrium-molybdenum alloy.

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