High-stability hard alloy tamping pick

Abstract

The utility model relates to the related field of alloy tamping pickaxe technology, in particular to a high-stability hard alloy tamping pickaxe which comprises a device body, a mounting seat, a tamping pickaxe head and a support assembly are arranged in the device body, a grip and a motor are fixed at the upper end of the mounting seat, a tamping pickaxe rod is connected to the driving end of the motor, the tamping pickaxe head is arranged at the bottom of the tamping pickaxe rod, and the support assembly is arranged on the mounting seat. An upper limiting block is fixed to the lower end of the tamping pickaxe rod, a lower limiting block is fixed to the upper end of the tamping pickaxe head, a connecting assembly is installed between the tamping pickaxe rod and the tamping pickaxe head, the connecting assembly comprises a first sleeve shell and a second sleeve shell which are movably arranged on the outer sides of the upper limiting block and the lower limiting block in a sleeving mode, and springs are arranged in the first sleeve shell and the second sleeve shell; elastic telescopic connection of the tamping pickaxe rod and the tamping pickaxe head can be achieved, small-range telescopic protection on the tamping pickaxe head is facilitated, the vibration feeling when an operator holds the tamping pickaxe by hand can be remarkably reduced, accordingly, the fatigue feeling is relieved, and the service life of equipment can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of alloy tamping tool technology, and in particular to a high-stability cemented carbide tamping tool. Background Technology

[0002] The operation and construction of railway locomotives, the elasticity of the roadbed, and the levelness of the rails play a significant role. Currently, the Ministry of Railways has thousands of leveling cars, each with 32 tamping picks. Domestically, high-carbon cast steel picks are currently used. The hardness of the picks must be within the machinable range, which restricts their wear resistance. Tamping picks are a type of wear part.

[0003] The utility model patent with publication number CN 217710128 U in the prior art proposes a stable hard alloy tamping pick, which clamps the tamping rod with a clamping plate, and the snap-fit ​​ball ensures that the clamping surface of the clamping plate is in close contact with the outer wall of the tamping rod. The connecting plate that is in close contact has a threaded hole that matches the fixing bolt, and then the two sets of clamping plates are fixed by the fixing bolt, thereby ensuring the structural stability of the tamping rod.

[0004] However, it lacks the ability to protect the tamping head and tamping rod from expansion and contraction. When in use, the tamping rod is in rigid contact with the roadbed, which will generate strong vibrations. These vibrations will not only affect work efficiency, but also cause fatigue and discomfort to the operators. Therefore, we need to upgrade and modify the existing technology to overcome the existing problems and shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a highly stable cemented carbide tamping tool to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] Design a high-stability cemented carbide tamping pick, including a device body, which contains a mounting base, a tamping pick head and a support assembly. The upper end of the mounting base is fixed with a handle and a motor, the motor drive end is connected to a tamping pick rod, the bottom of the tamping pick rod is provided with a tamping pick head, the lower end of the tamping pick rod is fixed with an upper limit block, and the upper end of the tamping pick head is fixed with a lower limit block.

[0008] A connecting assembly is installed between the tamping rod and the tamping head. The connecting assembly includes a first shell and a second shell that are movably sleeved on the outside of the upper limit block and the lower limit block. Springs are provided inside the first shell and the second shell, and the two ends of the springs are elastically connected to the upper limit block and the lower limit block, respectively.

[0009] Preferably, the bracket assembly is disposed throughout the mounting base, and the bracket assembly includes a movable rod that is movably disposed inside the mounting base, the bottom of the movable rod being connected to a movable plate and a central rod being provided in the middle.

[0010] Preferably, the lower end of the upper limit block is provided with a plug-in shaft, and the lower limit block is provided with a plug-in hole, wherein the plug-in shaft is movably plugged into the plug-in hole.

[0011] Preferably, the inner walls of the first and second housings are provided with guide rods, and the outer walls of the upper and lower limit blocks are provided with guide grooves, which slide in correspondence with the guide rods.

[0012] Preferably, the first and second housings are provided with sealing sleeves at both ends, and the outer sides of the first and second housings are provided with connecting holes, with connecting bolts screwed into the connecting holes on both sides.

[0013] Preferably, the center rod has an adjustment hole, the lower end of the mounting base has a fixing hole, and an adjustment bolt is screwed between the adjustment hole and the fixing hole.

[0014] Preferably, the movable plate has a through hole in the center and a protective pad is provided in the through hole, and the protective pad is slidably sleeved on the tamping rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model includes a connecting component, a first housing, a second housing, a sealing sleeve, a connecting hole, a connecting bolt, a spring, and a guide rod. The upper limit block and the lower limit block are fitted and installed through the first and second housings. The upper limit block and the lower limit block are elastically connected by the spring, which enables elastic telescopic connection of the tamping rod and the tamping head. This facilitates small-range telescopic protection of the tamping head, significantly reduces the vibration felt by the operator when holding the tamping head, thereby reducing fatigue and extending the service life of the equipment.

[0017] 2. This utility model includes a support assembly, a movable plate, a movable rod, a central rod, an adjustment hole, an adjustment bolt, a through hole, and a protective pad. The movable rod drives the movable plate to rise and fall at the bottom of the mounting base. The adjustment bolt screws the adjustment hole and the fixing hole together, thereby enabling the adjustment of the movable plate. The movable plate provides auxiliary support for the tamping rod, improving its stability and preventing it from shaking during use, thus enhancing the practicality of the device.

[0018] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure according to the present utility model;

[0021] Figure 2 This is an exploded view of the overall structure according to this utility model;

[0022] Figure 3 An exploded view of the connecting components according to this utility model;

[0023] Figure 4 This is an exploded view of the bracket assembly according to the present invention.

[0024] In the diagram: 1. Device body; 2. Mounting base; 21. Handle; 22. Fixing hole; 3. Motor; 4. Tamping rod; 41. Upper limit block; 42. Insertion shaft; 5. Tamping head; 51. Lower limit block; 52. Insertion hole; 6. Connecting assembly; 61. First housing; 62. Second housing; 63. Sealing sleeve; 64. Connecting hole; 65. Connecting bolt; 66. Spring; 67. Guide rod; 7. Support assembly; 71. Movable plate; 72. Movable rod; 73. Center rod; 74. Adjustment hole; 75. Adjustment bolt; 76. Through hole; 77. Protective pad; 8. Guide groove. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1 As shown in Figure 4, this embodiment provides a high-stability cemented carbide tamping pick, which includes a device body 1. The device body 1 includes a mounting base 2, a tamping pick head 5, and a support assembly 7. The upper end of the mounting base 2 is fixed with a handle 21 and a motor 3. The drive end of the motor 3 is connected to a tamping pick rod 4. The bottom of the tamping pick rod 4 is provided with a tamping pick head 5. The lower end of the tamping pick rod 4 is fixed with an upper limit block 41, and the upper end of the tamping pick head 5 is fixed with a lower limit block 51.

[0027] In this embodiment, a connecting assembly 6 is installed between the tamping rod 4 and the tamping head 5. The connecting assembly 6 includes a first housing 61 and a second housing 62 movably sleeved on the outside of the upper limit block 41 and the lower limit block 51. A spring 66 is installed inside the first housing 61 and the second housing 62, with both ends of the spring 66 elastically connected to the upper limit block 41 and the lower limit block 51 respectively. A plug-in shaft 42 is provided at the lower end of the upper limit block 41, and a plug-in hole 52 is provided inside the lower limit block 51. The plug-in shaft 42 is movably plugged into the plug-in hole 52. A guide rod 67 is provided on the inner wall of the first housing 61 and the second housing 62, and a guide groove 8 is provided on the outer wall of the upper limit block 41 and the lower limit block 51. The guide groove 8 slides in correspondence with the guide rod 67. Sealing sleeves 63 are provided at both ends. Connecting holes 64 are provided on the outer sides of the first shell 61 and the second shell 62 respectively. Connecting bolts 65 are screwed into the connecting holes 64 on both sides. The first shell 61 and the second shell 62 are installed between the tamping rod 4 and the tamping head 5 through the cooperation of the insertion shaft 42 and the insertion hole 52. The upper limit block 41 and the lower limit block 51 are elastically connected by the spring 66. The upper limit block 41 and the lower limit block 51 are vertically guided by the guide rod 67 and the guide groove 8, thereby realizing the elastic telescopic connection of the tamping rod 4 and the tamping head 5. It is convenient to protect the tamping head 5 by a small range of telescopic extension. It can significantly reduce the vibration felt by the operator when holding the tamping head, thereby reducing fatigue and extending the service life of the equipment.

[0028] In this embodiment, the support assembly 7 is installed through the mounting base 2. The support assembly 7 includes a movable rod 72 that is movably installed through the mounting base 2. The bottom of the movable rod 72 is connected to a movable plate 71 and a central rod 73 is provided in the middle. An adjustment hole 74 is provided on the central rod 73. A fixing hole 22 is provided at the lower end of the mounting base 2. An adjustment bolt 75 is screwed between the adjustment hole 74 and the fixing hole 22. A through hole 76 is provided in the center of the movable plate 71 and a protective pad 77 is provided in the through hole 76. The protective pad 77 is slidably sleeved on the tamping rod 4. The movable plate 71 is driven to rise and fall at the bottom of the mounting base 2 by the movable rod 72. The adjustment hole 74 and the fixing hole 22 are screwed and fixed by the adjustment bolt 75, thereby realizing the raising and lowering adjustment of the movable plate 71. The movable plate 71 provides auxiliary support for the tamping rod 4, improves the stability of the tamping rod 4 during use, prevents it from shaking easily during use, and improves the practicality of the device.

[0029] The working principle and process of this utility model are as follows: During use, the tamping pick can be held by the handle 21. During the operation of the tamping pick, the tamping pick head 5 will transmit the external force to the spring 66. The spring 66 will elastically extend and buffer the tamping pick head 5. The tamping pick head 5 will retract upward through the insertion hole 52 and the insertion shaft 42. The spring 66 will elastically compress. The upper limit block 41 and the lower limit block 51 will move in opposite directions in the first shell 61 and the second shell 62 to realize the extension and buffering of the tamping pick head 5, preventing the tamping pick head 5 from breaking or the worker from being injured by vibration due to rigid impact, and ensuring the safety of the equipment. During use, the movable plate 71 can also be moved up and down as needed. Then, the adjusting hole 74 can be screwed and fixed to the fixing hole 22 through the adjusting bolt 75, so that the movable plate 71 provides auxiliary support for the tamping pick rod 4.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

Claims

1. A high-stability cemented carbide pick, characterized in that: Including device body (1), the device body (1) contains mounting seat (2), tamper head (5) and support assembly (7) inside, the mounting seat (2) upper end is fixed with handle (21) and motor (3), the motor (3) drive end is connected with tamper rod (4), the tamper rod (4) bottom is provided with tamper head (5), the tamper rod (4) lower end is fixed with upper limit block (41), the tamper head (5) upper end is fixed with lower limit block (51); The connecting assembly (6) is installed between the tamper rod (4) and the tamper head (5), the connecting assembly (6) includes the first sleeve shell (61) and the second sleeve shell (62) movably sleeved outside the upper limit block (41) and the lower limit block (51), the first sleeve shell (61) and the second sleeve shell (62) are provided with springs (66) inside, and the two ends of the spring (66) are elastically connected with the upper limit block (41) and the lower limit block (51) respectively.

2. A high-stability cemented carbide pick according to claim 1, characterized in that: The support assembly (7) is arranged in the mounting seat (2), the support assembly (7) includes a movable rod (72) movably arranged in the mounting seat (2), the movable rod (72) is connected with a movable plate (71) at the bottom and is provided with a center rod (73) in the middle.

3. A high-stability cemented carbide pick according to claim 1, characterized in that: The lower end of the upper limit block (41) is provided with a plug-in shaft (42), the lower limit block (51) is provided with a plug-in hole (52), and the plug-in shaft (42) is movably plugged into the plug-in hole (52).

4. A high-strength cemented carbide pick according to claim 1, characterized in that: The inner wall of the first sleeve shell (61) and the second sleeve shell (62) is provided with a guide rod (67), the outer wall of the upper limit block (41) and the lower limit block (51) is provided with a guide groove (8), and the guide groove (8) is in sliding correspondence with the guide rod (67).

5. A high-strength cemented carbide pick according to claim 4, characterized in that: The first sleeve shell (61) and the second sleeve shell (62) are respectively provided with sealing sleeves (63) at two ends, the first sleeve shell (61) and the second sleeve shell (62) are respectively provided with connecting holes (64) outside, and connecting bolts (65) are screwed in the connecting holes (64) on both sides.

6. A high-strength cemented carbide pick according to claim 2, c h a r a c t e r i z e d in that: The center rod (73) is provided with an adjusting hole (74), the mounting seat (2) is provided with a fixing hole (22) at the lower end, and an adjusting bolt (75) is screwed between the adjusting hole (74) and the fixing hole (22).

7. A high-strength cemented carbide pick according to claim 2, c h a r a c t e r i z e d in that: The movable plate (71) is provided with a through hole (76) in the center, and a protective pad (77) is arranged in the through hole (76), and the protective pad (77) is movably sleeved on the tamper rod (4).

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