A fully automatic soil hammer device for test models

Abstract

The invention discloses a fully automatic test model soil hammering device, comprising a base, a vertical pole and a handle, wherein the lower end of the vertical pole is fixed at the center of the base, the handle is fixed at the upper end of the vertical pole, a spiral sleeve rotatably connected to the vertical pole is sleeved on the vertical pole, a spiral groove and a vertical groove are arranged on the outer surface of the spiral sleeve, the two ends of the vertical groove and the spiral groove are connected respectively, the upper end of the spiral sleeve is connected to a motor through a transmission mechanism, the motor is provided with a control system, and the control system, the motor and the transmission mechanism are all installed on the handle; a C-type sleeve is sleeved on the spiral sleeve, the lower end of the C-type sleeve is fixed on the base, a heavy hammer is sleeved on the C-type sleeve, a guide block is arranged in the sleeve hole of the heavy hammer, the guide block is connected to the heavy hammer through a pin shaft, the guide block is rotatably connected to the pin shaft, and the pin shaft is fixed to the heavy hammer; the guide block passes through the opening of the C-type sleeve and is slidably assembled in the vertical groove and the spiral groove. The invention can accurately and quickly complete the production of model soil and can reduce labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical testing, in particular to a fully automatic test model soil hammering device. Background Art

[0002] In geotechnical model tests, the preparation method and uniformity of the foundation model soil have a direct impact on the test efficiency and the accuracy of the results. When using on-site soil or model soil to make a foundation model, it is generally necessary to control the density of the foundation model soil. The production process is to draw a horizontal line in the model box in advance, then calculate the mass of the required model soil and weigh it, and then hammer it in the model box by the corresponding method. During the hammering process, the final height of the model soil needs to be controlled to be flush with the drawn line. The traditional hammer is composed of a bottom plate, a vertical rod and a handle. The tamping energy of this hammer is fixed, and the model production relies entirely on manual tamping, which is labor-intensive and will cause different densities in different parts of the model soil, affecting the accuracy of the test results. Summary of the invention

[0003] The present invention provides a fully automatic test model soil hammering device to solve the technical problems existing in the known technology. The device can accurately and quickly complete the production of model soil and can reduce labor intensity.

[0004] The present invention adopts a technical solution to solve the technical problems existing in the known technology: a fully automatic test model soil hammer device, comprising a base, a vertical pole and a handle, the lower end of the vertical pole is fixed to the center of the base, the handle is fixed to the upper end of the vertical pole, a spiral sleeve rotatably connected to the vertical pole is sleeved on the vertical pole, a spiral groove and a vertical groove are provided on the outer surface of the spiral sleeve, the vertical groove and the two ends of the spiral groove are respectively connected, the upper end of the spiral sleeve is connected to the motor through a transmission mechanism, the motor is provided with a control system, the control system, the motor and the transmission mechanism are all installed on the handle; a C-type sleeve is sleeved on the spiral sleeve, the lower end of the C-type sleeve is fixed to the base, a heavy hammer is sleeved on the C-type sleeve, a guide block is provided in the sleeve hole of the heavy hammer, the guide block is connected to the heavy hammer through a pin shaft, the guide block is rotatably connected to the pin shaft, and the pin shaft is fixed to the heavy hammer; the guide block passes through the opening of the C-type sleeve and is slidably assembled in the vertical groove and the spiral groove.

[0005] The transmission mechanism includes a bevel gear A and a bevel gear B arranged at the upper end of the spiral sleeve, the bevel gear B is meshed with the bevel gear A, the bevel gear B is driven by the motor, and the motor and the bevel gear B are both installed inside the handle.

[0006] The control system includes a circuit board connected to the motor, a screen, a setting key and a switch key respectively connected to the circuit board, the screen, the setting key and the switch key are respectively mounted on the handle, and the circuit board is installed inside the handle.

[0007] The lower end of the C-shaped sleeve is embedded in the base.

[0008] The handle is vertically sleeved on the upper end of the vertical pole, a circumferential limiting structure is provided between the two, and the handle is locked on the vertical pole by a lock nut.

[0009] The base adopts a square structure.

[0010] All parts of the device are made of stainless steel.

[0011] The advantages and positive effects of the present invention are: by using a spiral transmission mechanism, the guide block is lifted to the top of the vertical groove by driving the spiral sleeve to rotate through a motor, and then released, so that the weight connected thereto is automatically lifted up and then falls freely. By setting the speed and number of hammering, the model soil can be hammered automatically, which can reduce labor intensity and reduce manpower. Since the height of the weight rising each time is the same, the hammering energy at various places can be guaranteed to be consistent, and the density of the soil at various places can be guaranteed to be the same, thereby improving the production quality of the model soil. In addition, the weight can be replaced, and different hammering energies can be achieved, thereby achieving the preparation of model soils of different densities. In summary, the present invention drives the weight by rotating the spiral sleeve to achieve the reciprocating motion of the weight rising and free falling, and can accurately and quickly complete the preparation of the set density model soil. In addition, the present invention has a simple structure and is easy to operate, which can save time and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is a schematic diagram of the base and the upright structure of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure of the C-type sleeve of the present invention;

[0015] Figure 4 It is a schematic diagram of the weight structure of the present invention;

[0016] Figure 5 It is a schematic diagram of the handle structure of the present invention;

[0017] Figure 6 It is a schematic diagram of the spiral sleeve structure of the present invention.

[0018] In the figure: 1. base; 1-1. C-shaped groove; 2. C-shaped sleeve; 2-1. opening; 3. heavy hammer; 3-1. pin; 3-2. guide block; 4. handle; 4-1. screen; 4-2. setting key; 4-3. slider; 4-4. switch key; 5. vertical pole; 5-1. guide groove; 6. lock nut; 7. spiral sleeve; 7-1. bevel gear A; 7-2. spiral groove; 7-3. vertical groove. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0020] See also Figure 1 to Figure 6 A fully automatic test model soil hammer device comprises a base 1, a vertical pole 5 and a handle 4, wherein the lower end of the vertical pole 5 is fixed at the center of the base 1, the handle 4 is fixedly connected to the upper end of the vertical pole 5, a spiral sleeve 7 rotatably connected to the vertical pole 5 is sleeved on the vertical pole 5, a spiral groove 7-2 and a vertical groove 7-3 are provided on the outer surface of the spiral sleeve 7, the two ends of the vertical groove 7-3 and the spiral groove 7-2 are connected respectively, the upper end of the spiral sleeve 7 is connected to the motor through a transmission mechanism, the motor is provided with a control system, and the control system, the motor and the transmission mechanism are all installed on the handle 4. The transmission mechanism and control system have mature technologies and will not be described here.

[0021] A C-shaped sleeve 2 is sleeved on the spiral sleeve 7 , and the lower end of the C-shaped sleeve 2 is fixed on the base 1 .

[0022] A heavy hammer 3 is mounted on the C-shaped sleeve 2, and a guide block 3-2 is provided in the mounting hole of the heavy hammer 3. The guide block 3-2 is connected to the heavy hammer 3 through a pin shaft 3-1. The guide block 3-2 is rotatably connected to the pin shaft 3-1, and the pin shaft 3-1 is fixed to the heavy hammer 3.

[0023] The guide block 3-2 passes through the opening 2-1 of the C-shaped sleeve 2 and is slidably assembled in the vertical groove 7-3 and the spiral groove 7-2. When the spiral sleeve 7 rotates, the spiral groove 7-2 drives the guide block 3-2 to move upward along the vertical groove 7-3. When the guide block 3-2 moves to the top of the vertical groove 7-3 and the spiral groove 7-2, the spiral sleeve 7 stops rotating, and the guide block 3-2 falls freely to the bottom of the groove under the action of gravity.

[0024] Since the guide block 3 - 2 and the heavy hammer 3 are connected together, the heavy hammer 3 is automatically moved upward and freely dropped by the guide block 3 - 2 , thereby achieving hammer compaction.

[0025] In this embodiment, the transmission mechanism includes a bevel gear A7-1 and a bevel gear B arranged at the upper end of the spiral sleeve 7, the bevel gear B meshes with the bevel gear A7-1, the bevel gear B is driven by the motor, and the motor and the bevel gear B are both installed inside the handle 4, with a compact structure, safe and reliable. The control system includes a circuit board connected to the motor, a screen 4-1, a setting key 4-2 and a switch key 4-4 respectively connected to the circuit board, the screen 4-1, the setting key 4-2 and the switch key 4-4 are respectively rotated on the handle 4, and the circuit board is installed inside the handle, which is safe, reliable and convenient to operate. The lower end of the C-shaped sleeve 2 is embedded in the C-shaped groove 1-1 on the base 1, with a simple structure and convenient installation and disassembly. The handle 4 is vertically sleeved on the upper end of the vertical rod 5, and a circumferential limiting structure composed of a guide groove 5-1 and a slider 4-3 is provided between the two. The handle 4 is locked on the vertical rod 5 by a lock nut 6, which is convenient for installation and has a stable structure. The base 1 adopts a square structure. All parts of the hammer device are made of stainless steel, which is corrosion-resistant and not easy to rust.

[0026] The application process of the present invention:

[0027] 1) First draw a horizontal line in the model box, then calculate the mass of the required model soil and weigh it, and spread the soil evenly in the model box.

[0028] 2) Turn the spiral sleeve to align the vertical groove with the opening of the C-type sleeve.

[0029] 3) Pass the guide block through the opening of the C-type sleeve and embed it into the bottom of the vertical groove of the spiral sleeve. Select a suitable weight, put it on the outside of the C-type sleeve, and let the weight fall on the base. Use a pin to connect the guide block and the weight together.

[0030] 4) Install the handle on the vertical pole, ensure that the bevel gear B in the handle and the bevel gear A on the spiral sleeve are tightly engaged, and tighten the lock nut.

[0031] 5) Place the device on the model soil, set the hammer speed and number of times, and press the power button to achieve automatic reciprocating motion of the heavy hammer.

[0032] 6) After stopping the movement, the position is changed to complete the hammering of the entire model soil surface.

[0033] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many forms without departing from the scope of protection of the present invention and the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A fully automatic test model soil hammer device, comprising a base, a vertical rod and a handle, wherein the lower end of the vertical rod is fixed to the center of the base, and the handle is fixed to the upper end of the vertical rod, characterized in that: A spiral sleeve is sleeved on the vertical rod and is rotatably connected thereto. A spiral groove and a vertical groove are provided on the outer surface of the spiral sleeve. The two ends of the vertical groove and the spiral groove are connected respectively. The upper end of the spiral sleeve is connected to a motor through a transmission mechanism. The motor is provided with a control system. The control system, the motor and the transmission mechanism are all installed on the handle. A C-shaped sleeve is sleeved on the spiral sleeve, the lower end of the C-shaped sleeve is fixed on the base, a heavy hammer is sleeved on the C-shaped sleeve, a guide block is provided in the sleeve hole of the heavy hammer, the guide block is connected to the heavy hammer through a pin shaft, the guide block is rotatably connected to the pin shaft, and the pin shaft is fixedly connected to the heavy hammer; The guide block passes through the opening of the C-shaped sleeve and is slidably assembled in the vertical groove and the spiral groove.

2. The fully automatic test model soil hammering device according to claim 1 is characterized in that: The transmission mechanism includes a bevel gear A and a bevel gear B arranged at the upper end of the spiral sleeve, the bevel gear B is meshed with the bevel gear A, the bevel gear B is driven by the motor, and the motor and the bevel gear B are both installed inside the handle.

3. The fully automatic test model soil hammering device according to claim 1 is characterized in that: The control system includes a circuit board connected to the motor, a screen, a setting key and a switch key respectively connected to the circuit board, the screen, the setting key and the switch key are respectively mounted on the handle, and the circuit board is installed inside the handle.

4. The fully automatic test model soil hammering device according to claim 1 is characterized in that: The lower end of the C-shaped sleeve is embedded in the base.

5. The fully automatic test model soil hammering device according to claim 1 is characterized in that: The handle is vertically sleeved on the upper end of the vertical pole, a circumferential limiting structure is provided between the two, and the handle is locked on the vertical pole by a lock nut.

6. The fully automatic test model soil hammering device according to claim 1 is characterized in that: The base adopts a square structure.

7. The fully automatic test model soil hammering device according to claim 1 is characterized in that: All parts of the device are made of stainless steel.

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