An extruder for anhydrous stemming

Abstract

The utility model discloses a kind of extruding mud machines for anhydrous stemming, including supporting base, the top side of supporting base is fixedly connected with hopper, one end of the hopper is fixedly interconnected with cylinder, the end of the cylinder is attached with discharging machine head, and detachable connecting assembly is jointly installed between cylinder and discharging machine head;Power assembly is jointly installed between the other end of the hopper and supporting base, the driving end of the power assembly is fixedly connected with spline shaft;Four spline sleeves are sleeved on the outer surface of the spline shaft with limit stop.The utility model in the present application, by spline shaft and the cooperation of multiple threadable spline sleeves, the modularization of helical blade is installed on spline sleeve, when local blade wears, discharging machine head can be quickly disassembled and separated spline sleeve to replace locally, without disassembling helical shaft as a whole, greatly simplify maintenance process, reduce downtime and spare parts waste, effectively reduce labor intensity and cost.

Description

Technical Field

[0001] This utility model relates to the field of mud extruder technology, and in particular to a mud extruder for waterless drilling mud. Background Technology

[0002] Anhydrous taphole clay, a dry and highly abrasive refractory material, is widely used to fill gaps in the openings of ladles, molten iron ladles, and other containers. In this operation, the taphole clay extruder is the key piece of equipment, which uses internally rotating spiral blades to transport and compress the material forward, ultimately extruding it continuously from the die head.

[0003] Because anhydrous mud contains hard aggregates and has a strong granular texture, it causes extremely severe abrasive wear on the core working component of the equipment, the "spiral blades." The spiral blades, especially those at the front of the feeding and compression sections, will rapidly wear and thin at their outer edges after frequent use, leading to a decrease in the discharge pressure and efficiency of the mud extruder, ultimately failing to meet process requirements. In this case, the spiral blades must be replaced to restore equipment performance.

[0004] Currently, the vast majority of sludge extruders in the industry use an integral welded structure for their auger shaft assembly, meaning the auger blades are directly welded to the main shaft. While this structure is simple to manufacture, it exposes significant drawbacks during maintenance and replacement: First, replacing the blades requires completely disassembling the entire auger shaft from the machine. This process involves disassembling multiple components such as the reducer and bearing housing, making the operation cumbersome, labor-intensive, and time-consuming, often taking several hours, severely impacting construction efficiency. Second, when only a portion of the blades (such as the front end) is worn, the entire auger shaft assembly must be replaced, resulting in substantial material waste and increased spare parts inventory and maintenance costs.

[0005] Therefore, we propose a waterless extrusion machine for drilling mud. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a waterless mud extruder for drilling mud.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a waterless slurry extruder, comprising a support base, a hopper fixedly connected to one side of the top of the support base, a cylinder fixedly connected to one end of the hopper, a discharge head attached to the end of the cylinder, and a detachable connecting component installed between the cylinder and the discharge head.

[0008] A power assembly is installed at the other end of the hopper and the support base, and a spline shaft is fixedly connected to the drive end of the power assembly.

[0009] The outer surface of the spline shaft is fitted with four spline sleeves. Except for the single spline sleeve located on the side of the power assembly, the remaining three spline sleeves are fixedly connected to an external threaded sleeve at one end of the discharge head. Except for the single spline sleeve located on the side of the discharge head, the remaining three spline sleeves are provided with an internal threaded groove at one end of the power assembly.

[0010] The outer surfaces of the four spline sleeves are threaded with matching helical blades, and the four helical blades are respectively attached to the hopper and the inner wall of the cylinder.

[0011] An abutment ring is fixedly connected to the inner surface of the discharge head, and the abutment ring abuts against the adjacent spline sleeve.

[0012] Furthermore, the detachable connection assembly includes two flanges, which are respectively fixedly fitted onto the outer surfaces of the discharge head and the cylinder. Each flange has several bolts penetrating through the two flanges on one side, and each bolt has a nut threaded onto its outer surface. The two flanges are located between the bolt heads and the nuts, which realizes a quick and stable connection and separation between the discharge head and the cylinder, providing operational space for the subsequent disassembly and assembly of the spiral blade module.

[0013] Furthermore, the power assembly includes a geared motor and a first bearing housing. The geared motor is fixedly mounted on the top of the support base, and a rotating shaft is fixedly connected to the drive end of the geared motor. The first bearing housing is fixedly mounted on the end of the hopper. An assembly shaft is fixedly connected to the inner ring of the bearing inside the first bearing housing. The assembly shaft extends through the outer wall of the hopper and into the interior, and is fixedly connected to a splined shaft. Both the rotating shaft and the assembly shaft are fixedly connected to sprockets. A chain is meshed on the outer surfaces of the two sprockets, and power is transmitted through chain drive with a stable transmission ratio.

[0014] Furthermore, the assembly shaft abuts against the adjacent spline sleeve, which can axially limit the innermost spline sleeve and prevent the entire helical blade module assembly from moving towards the power end during operation.

[0015] Furthermore, all three external threaded sleeves are threadedly connected to adjacent internal threaded grooves, allowing multiple splined sleeves to be connected end to end to form a complete helical shaft. This ensures the coaxiality between the helical blades and the continuity of power transmission, while also enabling rapid assembly and disassembly.

[0016] Furthermore, the abutment ring includes a second bearing seat, which is located inside the discharge head. Several connecting rods are fixedly connected between the seat of the second bearing seat and the discharge head. A movable ring is fixedly connected to the inner ring of the bearing built into the second bearing seat, and the movable ring abuts against the adjacent spline sleeve. By supporting the outermost spline sleeve through the bearing, it provides axial abutment limit to prevent the module assembly from moving towards the discharge end, while also allowing the spline sleeve to rotate smoothly, effectively reducing friction and wear.

[0017] The beneficial effects of this utility model are:

[0018] In use, this utility model allows the spiral blades to be modularly mounted on the splined sleeves by cooperating with the splined shaft and multiple threaded splined sleeves. When some blades are worn, the discharge head can be quickly disassembled and the splined sleeves can be separated for local replacement without disassembling the entire spiral shaft. This greatly simplifies the maintenance process, reduces downtime and spare parts waste, and effectively reduces labor intensity and costs. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0022] Figure 3 This is a schematic diagram of the material discharge connector removal structure of this utility model;

[0023] Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention;

[0024] Figure 5 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0025] Figure 6 This is a cross-sectional view of the spline sleeve of this utility model.

[0026] The attached figures are labeled as follows:

[0027] 1. Support base; 2. Bolt; 3. Discharge head; 4. Flange; 5. Nut; 6. Cylinder; 7. Hopper; 8. Gear motor; 9. Sprocket; 10. Chain; 11. First bearing seat; 12. Shaft; 13. Assembly shaft; 14. Spline sleeve; 15. Helical blade; 16. Spline shaft; 17. Moving ring; 18. Connecting rod; 19. Second bearing seat; 20. External threaded sleeve; 21. Internal threaded groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-6 As shown, a mud extruder for waterless mud gunning includes a support base 1, which serves as the basic frame of the entire device for installing and securing all other components (such as the hopper 7, power assembly, etc.) to ensure the stability and balance of the device during operation. The base is welded from high-strength steel and steel plates.

[0030] A hopper 7 is fixedly connected to one side of the top of the support base 1. The hopper 7 is used to receive and temporarily store the anhydrous taphole clay raw material to be extruded. A cylinder 6 is fixedly connected to one end of the hopper 7. The end of the cylinder 6 is attached to the discharge head 3. A detachable connection assembly is installed between the cylinder 6 and the discharge head 3. The detachable connection assembly includes two flanges 4. The two flanges 4 are fixedly sleeved on the outer surfaces of the discharge head 3 and the cylinder 6, respectively. A number of bolts 2 are provided on one side of each flange 4, and nuts 5 are threaded onto the outer surfaces of the bolts 2. The two flanges 4 are located between the bolt heads of the bolts 2 and the nuts 5. The bolts 2 and nuts 5 are standard fasteners used to pass through the bolt holes of the two flanges 4 and tighten the nuts 5, thereby firmly connecting the discharge head 3 and the cylinder 6 together to form a detachable sealed cavity.

[0031] A power assembly is installed at the other end of the hopper 7 and the support base 1. The drive end of the power assembly is fixedly connected to a splined shaft 16. The power assembly includes a geared motor 8 and a first bearing housing 11. The geared motor 8 is fixedly installed on the top of the support base 1. The drive end of the geared motor 8 is fixedly connected to a rotating shaft 12. The geared motor 8 is a standard outsourced component, and the model is selected according to the required power and output speed. It also needs to be matched with an existing controller to control the operation of the geared motor 8. The first bearing housing 11 is fixedly installed at the end of the hopper 7. The inner ring of the bearing built into the first bearing housing 11 is fixedly connected to an assembly shaft 13. The assembly shaft 13 extends through the outer wall of the hopper 7 and into the interior, and is fixedly connected to the splined shaft 16. Both the rotating shaft 12 and the assembly shaft 13 are fixedly connected to sprockets 9. The outer surfaces of the two sprockets 9 are meshed with a chain 10. The assembly shaft 13 abuts against the adjacent splined sleeve 14. The first bearing housing 11 has its own seal (such as packing, sealing filler, etc.), which can effectively prevent material from entering the bearing and extend the bearing service life.

[0032] Four spline sleeves 14 are fitted on the outer surface of the spline shaft 16. Except for the single spline sleeve 14 located on the side of the power assembly, the remaining three spline sleeves 14 are fixedly connected to the external threaded sleeves 20 at one end of the discharge head 3. Except for the single spline sleeve 14 located on the side of the discharge head 3, the remaining three spline sleeves 14 are provided with internal threaded grooves 21 at one end of the power assembly. The three external threaded sleeves 20 are threadedly connected to the adjacent internal threaded grooves 21.

[0033] The outer surfaces of the four spline sleeves 14 are threaded with matching helical blades 15, and the four helical blades 15 are respectively attached to the inner walls of the hopper 7 and the cylinder 6. The helical blades 15 are the core working parts that directly contact and transport materials. Their rotational motion generates a driving force to push the material from the hopper 7 to the discharge head 3 and squeeze the material in the process.

[0034] An abutment ring is fixedly connected to the inner surface of the discharge head 3, and the abutment ring abuts against the adjacent spline sleeve 14. The abutment ring includes a second bearing seat 19, and the second bearing seat 19 is located inside the discharge head 3. Several connecting rods 18 are fixedly connected between the seat body of the second bearing seat 19 and the discharge head 3. A movable ring 17 is fixedly connected to the inner ring of the bearing inside the second bearing seat 19, and the movable ring 17 abuts against the adjacent spline sleeve 14. The second bearing seat 19 has its own seal (such as packing, sealing filler, etc.), which can effectively prevent material from entering the bearing and extend the service life of the bearing.

[0035] Working principle: During operation, the anhydrous taphole clay raw material is put into the hopper 7, and the reduction motor 8 in the power unit is started. The reduction motor 8 drives the rotating shaft 12 to rotate. Through the transmission of the sprocket 9 and the chain 10, the assembly shaft 13 is driven to rotate in the first bearing seat 11. Since the assembly shaft 13 is fixedly connected to the spline shaft 16, it drives the spline shaft 16 to rotate synchronously. The spline shaft 16 drives the four spline sleeves 14 to rotate together with the spline shaft 16 through the spline structure on its outer surface. When the spline sleeves 14 rotate, they drive the four spiral blades 15 to rotate synchronously inside the hopper 7 and the cylinder 6. The rotating spiral blades 15 convey and compress the material in the hopper 7 forward. The material is pushed by the spiral blades 15 through the cylinder 6 and finally continuously extruded from the die opening of the discharge head 3.

[0036] When it is necessary to replace the worn spiral blade 15, remove several bolts 2 and nuts 5 to separate the two flanges 4, then remove the discharge head 3 and separate it from the cylinder 6. At the same time, the abutment ring is also separated from the adjacent spline sleeve 14. At this time, the four spline sleeves 14 can be removed from the spline shaft 16. Then, by turning the spline sleeves 14 one by one, the internal thread groove 21 is separated from the external thread sleeve 20, and partial replacement can be performed without disassembling the entire spiral shaft assembly, which improves maintenance efficiency and reduces costs.

[0037] After the replacement is complete, simply reassemble them one by one.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mud extruder for waterless drilling mud, comprising a support base (1), characterized in that: A hopper (7) is fixedly connected to one side of the top of the support base (1). A cylinder (6) is fixedly connected to one end of the hopper (7). A discharge head (3) is attached to the end of the cylinder (6). A detachable connection component is installed between the cylinder (6) and the discharge head (3). The other end of the hopper (7) and the support base (1) are connected together by a power assembly, and the drive end of the power assembly is fixedly connected to a spline shaft (16). The outer surface of the spline shaft (16) is fitted with four spline sleeves (14). Except for the single spline sleeve (14) located on the side of the power assembly, the remaining three spline sleeves (14) are fixedly connected to an external threaded sleeve (20) at one end of the discharge head (3). Except for the single spline sleeve (14) located on the side of the discharge head (3), the remaining three spline sleeves (14) are provided with an internal threaded groove (21) at one end of the power assembly. The outer surfaces of the four spline sleeves (14) are threaded with matching helical blades (15), and the four helical blades (15) are respectively attached to the inner walls of the hopper (7) and the cylinder (6); The inner surface of the discharge head (3) is fixedly connected with an abutment ring, and the abutment ring abuts against the adjacent spline sleeve (14).

2. The mud extruder for waterless tapping mud according to claim 1, characterized in that: The detachable connection assembly includes two flanges (4), and the two flanges (4) are respectively fixedly sleeved on the outer surface of the discharge head (3) and the cylinder (6). A number of bolts (2) penetrating the two flanges (4) are provided on one side of each flange (4). Nuts (5) are threaded onto the outer surface of each of the bolts (2), and the two flanges (4) are located between the bolt head and the nut (5).

3. The mud extruder for waterless tapping mud according to claim 2, characterized in that: The power assembly includes a geared motor (8) and a first bearing housing (11), and the geared motor (8) is fixedly installed on the top of the support base (1), and the drive end of the geared motor (8) is fixedly connected to a rotating shaft (12). The first bearing housing (11) is fixedly installed at the end of the hopper (7). The inner ring of the bearing housing (11) is fixedly connected to the assembly shaft (13), and the assembly shaft (13) extends through the outer wall of the hopper (7) to the inside and is fixedly connected to the spline shaft (16). The rotating shaft (12) and the assembly shaft (13) are both fixedly connected to sprockets (9). The outer surfaces of the two sprockets (9) are meshed with a chain (10).

4. The mud extruder for waterless tapping mud according to claim 3, characterized in that: The assembly shaft (13) abuts against the adjacent spline sleeve (14).

5. A mud extruder for waterless tapping mud according to claim 1, characterized in that: All three external threaded sleeves (20) are threadedly connected to the adjacent internal threaded grooves (21).

6. The mud extruder for waterless tapping mud according to claim 1, characterized in that: The abutting ring includes a second bearing seat (19), and the second bearing seat (19) is located inside the discharge head (3). The seat of the second bearing seat (19) and the discharge head (3) are fixedly connected by several connecting rods (18). The inner ring of the bearing built into the second bearing seat (19) is fixedly connected to a movable ring (17), and the movable ring (17) abuts against the adjacent spline sleeve (14).

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