Automatic drilling sample block taking and placing device for separating membrane shell product

Abstract

The utility model provides an automatic drilling sample block taking and placing device for separating membrane shell products, and belongs to the technical field of membrane method separation. The problem that an existing membrane shell drilling technology cannot achieve automatic machining is solved. The drilling tool comprises a drilling tool, a movable sealing jacket, a mechanical sealing assembly, a positive pressure mechanism and a negative pressure mechanism, the drilling tool comprises a connecting rotating shaft and a tool bit, a reducing through hole is formed in the connecting rotating shaft in the axial direction and communicated with an inner cavity of the tool bit, a plurality of airflow channels are formed in the position, at the reducing position of the reducing through hole, of the connecting rotating shaft in the radial direction, and the airflow channels are communicated with the positive pressure mechanism and the negative pressure mechanism. The multiple airflow channels are communicated with the variable-diameter through hole, the movable sealing clamping sleeve is arranged on the outer side of the connecting rotating shaft in a sleeving mode, the upper end and the lower end of the movable sealing clamping sleeve are symmetrically arranged and rotationally connected with the connecting rotating shaft, an airflow cavity is formed in the movable sealing clamping sleeve, and the airflow cavity is communicated with the variable-diameter through hole of the connecting rotating shaft through the airflow channels. The drilling machine is mainly used for the membrane shell drilling process.

Description

Technical Field

[0001] The utility model belongs to the technical field of membrane separation, in particular to an automatic taking and placing device for drilling sample blocks used for separation membrane shell products. Background Art

[0002] At present, in the field of membrane separation technology, the original concentrate outlet used for connecting the membrane shell to the pipeline is processed by the sleeve drilling process. After the hole is drilled through, a fiberglass sample with the same inner diameter as the hole-opening cutter will be in the drilling cutter or fall into the membrane shell. In order to prevent it from scratching the membrane shell, a flexible board is usually placed inside. Due to the uncertainty in the drilling process, this process is mainly performed manually, and the fiberglass sample is checked to prevent it from getting stuck in the drilling cutter.

[0003] Due to the uncertainty of the drilling process, this process cannot be automated. Therefore, there is an urgent need for a device that can automatically detect and place the sample blocks after drilling to solve the problem of uncertainty in the state after drilling, thereby promoting the automation of the membrane shell drilling process. Utility Model Content

[0004] In view of this, the utility model aims to provide an automatic pick-up and placement device for drilling sample blocks of separation membrane shell products, so as to solve the problem that the existing membrane shell drilling process cannot realize automated processing.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic taking and placing device for drilling sample blocks of separation membrane shell products, which includes a drilling cutter, a dynamic sealing jacket, a mechanical sealing assembly, a positive pressure mechanism and a negative pressure mechanism, the drilling cutter includes a connecting shaft and a cutter head, a variable diameter through hole is axially opened on the connecting shaft, the variable diameter through hole is connected to the inner cavity of the cutter head, a plurality of air flow channels are radially opened on the connecting shaft at the variable diameter of the variable diameter through hole, the plurality of air flow channels are all connected to the variable diameter through hole, the dynamic sealing jacket is sleeved on On the outside of the connecting shaft, the upper and lower ends of the dynamic sealing jacket are symmetrically arranged and are both rotatably connected to the connecting shaft, an airflow cavity is arranged in the dynamic sealing jacket, and the airflow cavity is connected with the reducing through hole of the connecting shaft through the airflow channel, and mechanical sealing assemblies are symmetrically arranged on the connecting shaft on both sides of the airflow channel, and the two ends of the dynamic sealing jacket are respectively sealed with the connecting shaft through the mechanical sealing assemblies, and a connecting through hole is opened on the side wall of the dynamic sealing jacket, and the positive pressure mechanism and the negative pressure mechanism are both connected with the airflow cavity through the connecting through hole.

[0006] Furthermore, bearings are arranged between the upper and lower ends of the dynamic sealing jacket and the connecting shaft, the bearing sleeve is arranged on the connecting shaft, and the connecting shaft is rotatably connected to the inner ring of the bearing.

[0007] Furthermore, the mechanical seal assembly includes a sealing dynamic ring and a sealing static ring, the sealing dynamic ring is arranged in the air flow cavity and is sleeved on the connecting rotating shaft, the sealing static ring is arranged between the end of the dynamic sealing jacket and the connecting rotating shaft and is sleeved on the connecting rotating shaft, the inner wall of the sealing static ring and the outer wall of the connecting rotating shaft are gap-fitted, and the sealing dynamic ring and the sealing static ring are tightly abutted against each other to form a dynamic fit.

[0008] Furthermore, a sealing ring is provided between the sealing static ring and the dynamic sealing jacket.

[0009] Furthermore, a retaining ring is arranged between the sealing ring and the bearing, and the retaining ring is clamped between the sealing static ring and the dynamic sealing jacket, and two ends of the retaining ring are respectively against the bearing and the sealing ring.

[0010] Furthermore, a first elastic retaining ring is provided on the inner walls of both ends of the dynamic sealing jacket, a second elastic retaining ring is provided on the connecting shaft corresponding to the first elastic retaining ring, and the outer ring and inner ring of one end of the bearing respectively abut against the first elastic retaining ring and the second elastic retaining ring.

[0011] Furthermore, a pneumatic pipeline connector is connected to the outer side of the connecting through hole, and a positive pressure channel and a negative pressure channel are respectively arranged in the pneumatic pipeline connector, and the positive pressure mechanism and the negative pressure mechanism are connected to the airflow cavity through the positive pressure channel and the negative pressure channel respectively.

[0012] Furthermore, a cooling water pipeline is connected to the top of the connecting shaft of the drilling tool, and the cooling water pipeline is communicated with the variable diameter through hole.

[0013] Furthermore, the device also includes a tool setting instrument, which cooperates with the inner cavity of the tool head.

[0014] Furthermore, a power head is connected to the top of the connecting shaft of the drilling tool.

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

[0016] 1. The utility model provides an automatic taking and placing device for drilling sample blocks of separation membrane shell products. Through the mechanical seal assembly and the dynamic seal jacket structure, a sealed airflow cavity is formed between the dynamic seal jacket and the connecting shaft during the rotation of the drilling cutter, and the suction and spitting actions of the sample block are realized by the inner cavity of the drilling cutter head through the negative pressure mechanism and the positive pressure mechanism, respectively, so that the automatic taking and placing of the drilling sample block is realized, and the processing efficiency is improved;

[0017] 2. The utility model is provided with a tool setting instrument to judge the inner cavity state of the drilling tool head, thereby replacing the manual judgment process in the traditional process, solving the obstacle of the uncertainty of the sample block and the drilling tool state to the automation process, and realizing the automation operation plan of the drilling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic pick-up and placement device for drilling sample blocks used in separation membrane shell products according to the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of a device for automatically taking and placing drilled sample blocks for separation membrane shell products described in the utility model.

[0021] 1-drilling tool, 2-dynamic sealing jacket, 3-mechanical sealing assembly, 4-pneumatic pipeline connector, 5-connecting shaft, 6-reducing through hole, 7-air flow channel, 8-cutter head, 9-sealing dynamic ring, 10-sealing static ring, 11-bearing, 12-sealing ring, 13-retaining ring, 14-first elastic retaining ring, 15-second elastic retaining ring, 16-positive pressure channel, 17-negative pressure channel, 18-power head, 19-tool setting instrument. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely explain the technical solutions in the embodiments of the utility model. It should be noted that the embodiments and features in the embodiments of the utility model can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0023] See also Figure 1-2The present embodiment is described as an automatic taking and placing device for drilling sample blocks of separation membrane shell products, which includes a drilling cutter 1, a dynamic sealing jacket 2, a mechanical sealing assembly 3, a positive pressure mechanism and a negative pressure mechanism. The drilling cutter 1 includes a connecting shaft 5 and a cutter head 8. A reducing through hole 6 is axially opened on the connecting shaft 5, and the reducing through hole 6 is communicated with the inner cavity of the cutter head 8. A plurality of air flow channels 7 are radially opened on the connecting shaft 5 at the reducing point of the reducing through hole 6, and the plurality of air flow channels 7 are all communicated with the reducing through hole 6. The dynamic sealing jacket 2 is sleeved on the outside of the connecting shaft 5, and the upper and lower ends of the dynamic sealing jacket 2 are symmetrically arranged and are both rotatably connected to the connecting shaft 5. An air flow cavity is arranged in the dynamic sealing jacket 2, and the air flow cavity passes through the air flow channel 7 is connected with the reducing through hole 6 of the connecting shaft 5, mechanical seal assemblies 3 are symmetrically arranged on the connecting shafts 5 on both sides of the airflow channel 7, the two ends of the dynamic sealing jacket 2 are respectively sealed between the mechanical seal assemblies 3 and the connecting shaft 5, a connecting through hole is opened on the side wall of the dynamic sealing jacket 2, and the positive pressure mechanism and the negative pressure mechanism are both connected with the airflow cavity through the connecting through hole. In this embodiment, during the rotation of the drilling tool 1, a sealed airflow cavity is formed between the dynamic sealing jacket 2 and the connecting shaft 5, and the suction and spitting actions of the sample block by the inner cavity of the drilling tool head 8 are realized through the negative pressure mechanism and the positive pressure mechanism, respectively, so as to realize the automatic taking and placing of the drilling sample block and improve the processing efficiency.

[0024] In this embodiment, the negative pressure mechanism is a vacuum pump, and the positive pressure mechanism is a compressed air pump.

[0025] In this embodiment, a cooling water pipeline is connected to the top of the connecting shaft 5 of the drilling tool 1, and the cooling water pipeline is connected to the reducing hole 6. When drilling, cooling water flows from the cooling water pipeline and the reducing hole 6 to the drilling head 8 for cooling and preventing the cutter head 8 from overheating.

[0026] The airflow channel 7 in this embodiment is used to connect the airflow cavity and the variable diameter through hole 6. The positive pressure mechanism and the negative pressure mechanism realize the automatic placement of the drilling sample block in the inner cavity of the cutter head 8 through the airflow cavity, the airflow channel 7 and the variable diameter through hole 6 in turn.

[0027] In this embodiment, bearings 11 are disposed between the upper and lower ends of the dynamic sealing jacket 2 and the connecting shaft 5 . The bearings 11 are sleeved on the connecting shaft 5 , and the connecting shaft 5 is rotatably connected to the inner ring of the bearings 11 .

[0028] The mechanical seal assembly 3 in this embodiment includes a sealing dynamic ring 9 and a sealing static ring 10. The sealing dynamic ring 9 is arranged in the air flow cavity and is sleeved on the connecting shaft 5. The sealing static ring 10 is arranged between the end of the dynamic sealing jacket 2 and the connecting shaft 5 and is sleeved on the connecting shaft 5. The inner wall of the sealing static ring 10 and the outer wall of the connecting shaft 5 are gap-fitted. The sealing dynamic ring 9 and the sealing static ring 10 are tightly abutted against each other and form a dynamic fit. When the drilling tool 1 rotates, the sealing dynamic ring 9 rotates 1 along with the connecting shaft 5 of the drilling tool 1, and the sealing static ring 10 and the dynamic sealing jacket 2 do not rotate.

[0029] In this embodiment, a sealing ring 12 is provided between the sealing static ring 10 and the dynamic sealing jacket 2 , and the sealing ring 12 is used for sealing between the sealing ring 12 and the end of the dynamic sealing jacket 2 .

[0030] In this embodiment, a retaining ring 13 is arranged between the sealing ring 12 and the bearing 11. The retaining ring 13 is clamped between the sealing static ring 10 and the dynamic sealing jacket 2. The two ends of the retaining ring 13 are respectively against the bearing 11 and the sealing ring 12, and the two ends of the retaining ring 13 respectively play a role in limiting the bearing 11 and the sealing ring 12.

[0031] In this embodiment, first elastic circlips 14 are arranged on the inner walls of both ends of the dynamic sealing jacket 2, and a second elastic circlip 15 corresponding to the first elastic circlip 14 is arranged on the connecting shaft 5. The outer ring and the inner ring at one end of the bearing 11 respectively abut against the first elastic circlip 14 and the second elastic circlip 15. The first elastic circlip 14 and the second elastic circlip 15 respectively limit one end of the outer ring and the inner ring of the bearing 11 to prevent the bearing 11 from being displaced during operation. In this embodiment, grooves matching the first elastic circlip 14 and the second elastic circlip 15 are respectively arranged on the inner walls of both ends of the dynamic sealing jacket 2 and the side wall of the connecting shaft 5 for assembling the first elastic circlip 14 and the second elastic circlip 15.

[0032] In this embodiment, the outer side of the connecting through hole is connected to a pneumatic pipeline connector 4, and a positive pressure channel 16 and a negative pressure channel 17 are respectively arranged in the pneumatic pipeline connector 4. The positive pressure mechanism and the negative pressure mechanism are connected to the airflow cavity through the positive pressure channel 16 and the negative pressure channel 17 respectively. The pneumatic pipeline connector 4 is connected to the connecting through hole through a sealing thread, and the pneumatic pipeline connector 4 is set for the connection between the dynamic sealing jacket 2 and the negative pressure mechanism and the positive pressure mechanism.

[0033] The device described in this embodiment also includes a tool setting instrument 19, which cooperates with the inner cavity of the tool head 8. By providing the tool setting instrument 19 to judge the inner cavity state of the tool head 8 of the drilling tool 1, the manual judgment process in the traditional process is replaced, the obstacle of the uncertainty of the state of the sample block and the drilling tool 1 to the automation process is solved, and the automation operation plan of the drilling process is realized.

[0034] In this embodiment, a power head 18 is connected to the top of the connecting shaft 5 of the drilling tool 1. In this embodiment, the power head 18 is a central cooling power head, and a cooling water pipeline is arranged inside the power head to provide power for the rotation of the drilling tool 1.

[0035] The automatic taking and placing device for drilling sample blocks for separation membrane shell products described in this embodiment is applied to a drilling machine or a milling machine.

[0036] The working principle of this embodiment is as follows:

[0037] The automatic pick-and-place device for drilling sample blocks of assembled separation membrane shell products is installed on the central cooling power head, the variable diameter through hole 6 is connected to the cooling water pipeline, the positive pressure channel 16 of the pneumatic pipeline connector 4 is connected to the positive pressure mechanism, and the negative pressure channel 17 is connected to the negative pressure mechanism. The pneumatic pipeline connector 4 is connected to the hard pipeline and fixed on the bracket of the power head 18. After the equipment is started, the power head 18 drives the drilling cutter 1 to rotate, wherein the sealing dynamic ring 9 of the mechanical seal assembly 3 rotates with the drilling cutter 1, and the sealing static ring 10 and the dynamic sealing jacket 2 do not rotate. Before drilling, the power head 18 first moves the drilling tool 1 to the tool setting instrument 19, and confirms whether the inside of the cutter head 8 of the drilling tool 1 is empty through the tool setting. If it is empty, the cooling water is turned on and drilling is carried out. After reaching the set depth, the cooling water is stopped, the positive pressure channel 16 is closed, the negative pressure channel 17 is opened, and the negative pressure mechanism is vacuumed. The negative pressure is used to keep the drilled sample block sucked in the cutter head 8 of the drilling tool 1 by the negative pressure. The power head 18 drives the drilling tool 1 to move the tool waste area, the negative pressure channel 17 is closed, and the positive pressure channel 16 is opened. The compressed air of the positive pressure mechanism is used to blow out the sample block in the cutter head 8 of the drilling tool 1, and then the drilling tool 1 is moved to the tool setting instrument 19 to confirm the internal state of the cutter head 8 of the drilling tool 1. If the inside of the cutter head 8 is empty, the next cycle is carried out. If it is not empty, it is determined that the sample block is not blown out, the equipment alarm is triggered, and the blowing action is repeated.

[0038] The embodiments of the utility model disclosed above are only used to help explain the utility model. The embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model.

Claims

1. An automatic pick-up and placement device for drilling sample blocks of separation membrane shell products, characterized in that: It comprises a drilling tool (1), a dynamic sealing jacket (2), a mechanical sealing assembly (3), a positive pressure mechanism and a negative pressure mechanism. The drilling tool (1) comprises a connecting shaft (5) and a cutter head (8). A variable diameter through hole (6) is axially provided on the connecting shaft (5). The variable diameter through hole (6) is communicated with the inner cavity of the cutter head (8). A plurality of air flow channels (7) are radially provided on the connecting shaft (5) at the variable diameter position of the variable diameter through hole (6). The plurality of air flow channels (7) are all communicated with the variable diameter through hole (6). The dynamic sealing jacket (2) is sleeved on the outer side of the connecting shaft (5). The dynamic sealing jacket (2) is ) are symmetrically arranged at the upper and lower ends and are both rotatably connected to the connecting shaft (5); an airflow cavity is arranged in the dynamic sealing jacket (2); the airflow cavity is connected to the reducing hole (6) of the connecting shaft (5) through an airflow channel (7); mechanical seal assemblies (3) are symmetrically arranged on the connecting shaft (5) on both sides of the airflow channel (7); the two ends of the dynamic sealing jacket (2) are respectively sealed between the mechanical seal assemblies (3) and the connecting shaft (5); a connecting through hole is opened on the side wall of the dynamic sealing jacket (2); and the positive pressure mechanism and the negative pressure mechanism are both connected to the airflow cavity through the connecting through hole.

2. The automatic pick-up and placement device for drilling sample blocks for separation membrane shell products according to claim 1, characterized in that: Bearings (11) are provided between the upper and lower ends of the dynamic sealing jacket (2) and the connecting shaft (5); the bearing (11) is sleeved on the connecting shaft (5); and the connecting shaft (5) is rotatably connected to the inner ring of the bearing (11).

3. The automatic pick-up and placement device for drilling sample blocks for separation membrane shell products according to claim 2, characterized in that: The mechanical seal assembly (3) comprises a sealing dynamic ring (9) and a sealing static ring (10), wherein the sealing dynamic ring (9) is arranged in the air flow cavity and sleeved on the connecting rotating shaft (5), and the sealing static ring (10) is arranged between the end of the dynamic seal jacket (2) and the connecting rotating shaft (5) and sleeved on the connecting rotating shaft (5), and the inner wall of the sealing static ring (10) and the outer wall of the connecting rotating shaft (5) are clearance-fitted, and the sealing dynamic ring (9) and the sealing static ring (10) are closely abutted against each other and form a dynamic fit.

4. The automatic pick-up and placement device for drilling sample blocks for separation membrane shell products according to claim 3, characterized in that: A sealing ring (12) is provided between the static sealing ring (10) and the dynamic sealing jacket (2).

5. The automatic pick-up and placement device for drilling sample blocks for separation membrane shell products according to claim 4, characterized in that: A retaining ring (13) is provided between the sealing ring (12) and the bearing (11), and the retaining ring (13) is clamped between the sealing static ring (10) and the dynamic sealing jacket (2), with two ends of the retaining ring (13) respectively abutting against the bearing (11) and the sealing ring (12).

6. The automatic pick-up and placement device for drilling sample blocks for separation membrane shell products according to claim 2, characterized in that: A first elastic circlip (14) is provided on the inner walls of both ends of the dynamic sealing jacket (2), a second elastic circlip (15) is provided on the connecting shaft (5) and corresponds to the first elastic circlip (14), and the outer ring and the inner ring of one end of the bearing (11) respectively abut against the first elastic circlip (14) and the second elastic circlip (15).

7. The automatic pick-up and placement device for drilling sample blocks for separation membrane shell products according to claim 1, characterized in that: The outer side of the connecting through hole is connected to a pneumatic pipeline connector (4), and a positive pressure channel (16) and a negative pressure channel (17) are respectively arranged in the pneumatic pipeline connector (4), and the positive pressure mechanism and the negative pressure mechanism are respectively connected to the airflow cavity through the positive pressure channel (16) and the negative pressure channel (17).

8. The automatic pick-up and placement device for drilling sample blocks for separation membrane shell products according to claim 1, characterized in that: A cooling water pipeline is connected to the top of the connecting shaft (5) of the drilling tool (1), and the cooling water pipeline is in communication with the variable diameter through hole (6).

9. The automatic pick-up and placement device for drilling sample blocks for separation membrane shell products according to claim 1, characterized in that: The device also includes a tool setting instrument (19), and the tool setting instrument (19) cooperates with the inner cavity of the tool head (8).

10. The automatic pick-up and placement device for drilling sample blocks for separation membrane shell products according to claim 1, characterized in that: The top of the connecting shaft (5) of the drilling tool (1) is connected to a power head (18).

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