Quick-release screw delivery pump

Abstract

The utility model discloses a quick-release screw delivery pump, the other end of a connecting shaft of the quick-release screw delivery pump penetrates through a sealing assembly and is eccentrically connected with a first end part of an integrated connecting rod arranged in a feeding cylinder, a feeding cavity in the feeding cylinder is communicated with a discharging runner, and a second end part of the integrated connecting rod is eccentrically connected with one end of a rotor penetrating into the feeding cavity; the ratio of the outer diameter to the length of a body part of the integrated connecting rod located between the first end and the second end of the integrated connecting rod is 1: 20-60, at least two first connecting lugs are arranged on the outer side of the stator, and at least two second connecting lugs corresponding to the first connecting lugs are arranged on the outer side of the fixing base. And the first connecting lugs and the corresponding second connecting lugs are connected through screw rods which are axially arranged on the outer side of the feeding barrel. According to the utility model, not only can the quick disassembly be realized so as to facilitate high-frequency cleaning treatment, but also the disassembly convenience and the connection stability can be improved, and the food-grade material selection can be easily achieved while the eccentric connection is met.

Description

Technical Field

[0001] This utility model relates to the field of screw pump technology, and in particular to a quick-release screw conveying pump. Background Technology

[0002] A screw pump consists of a sealed chamber with a constant volume formed by a mating screw sleeve and a pump body or bushing. The medium is fed separately into the pump body as the screw shaft rotates, where it merges with the pump body and is finally delivered to the pump outlet, thus achieving the pumping purpose. Screw pumps have advantages such as stable liquid delivery, no pulsation, no agitation, low vibration, and low noise, and are widely used in the market. However, currently common screw pumps suffer from limitations due to their traditional structure, making disassembly difficult. Food residue within the delivery chamber is hard to clean, and the complex components hinder cleaning and sterilization. Furthermore, the materials used in these components often fail to meet food processing hygiene standards. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a quick-release screw conveyor pump, which can achieve quick disassembly for high-frequency cleaning, improve the convenience of disassembly and assembly and the stability of connection, and facilitate the selection of food-grade materials while meeting the requirements of eccentric connection.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a quick-release screw conveyor pump, comprising: a motor, a reducer connected to the output shaft of the motor, a connecting shaft with one end connected to the output shaft of the reducer, and a stator and a rotor that cooperate with each other. The middle part of the connecting shaft is rotatably mounted on a fixed base through at least two bearings. A feed cylinder is connected to the end of the fixed base opposite to the reducer. A sealing assembly is provided inside the feed cylinder near the fixed base. The other end of the connecting shaft passes through the sealing assembly and is eccentrically connected to the first end of an integral connecting rod disposed inside the feed cylinder. The other end of the feed cylinder... One end is connected to the stator, so that the feed chamber in the feed cylinder is connected to the discharge channel formed between the stator and the rotor. The second end of the integral connecting rod is eccentrically connected to one end of the rotor that passes through the feed chamber. The ratio of the outer diameter to the length of the body of the integral connecting rod located between the first end and the second end of the integral connecting rod is 1:20~60. At least two first connecting ears are provided on the outside of the stator. At least two second connecting ears corresponding to the first connecting ears are provided on the outside of the fixed seat. The first connecting ears and the corresponding second connecting ears are connected by a screw arranged axially on the outside of the feed cylinder.

[0005] The following are further improvements to the above technical solution:

[0006] 1. In the above scheme, the first connecting ear is located on the outer side of the stator away from the feed cylinder.

[0007] 2. In the above scheme, a discharge pipe is fitted on the outer side of the stator away from the feed cylinder, and the two first connecting ears are integrally formed on the outer surface of the discharge pipe.

[0008] 3. In the above scheme, a housing part is provided on the outside of the stator body part, and the housing part of the stator is sleeved and connected to the feed cylinder.

[0009] 4. In the above scheme, the sealing component is disposed at the connection between the feed cylinder and the fixed base.

[0010] 5. In the above scheme, the integrated connecting rod is a stainless steel connecting rod.

[0011] 6. In the above scheme, the integrated connecting rod is a 316 stainless steel connecting rod.

[0012] 7. In the above scheme, a feed inlet communicating with the feed chamber is opened on the side wall of the feed cylinder near the fixed seat and on the side of the sealing assembly opposite to the fixed seat.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This utility model relates to a quick-release screw conveyor pump, in which the middle of the connecting shaft is rotatably mounted on a fixed base via at least two bearings. A feed cylinder is connected to the end of the fixed base opposite to the reducer. A sealing assembly is installed inside the feed cylinder near the fixed base. The other end of the connecting shaft passes through this sealing assembly and is eccentrically connected to the first end of an integral connecting rod disposed within the feed cylinder. The other end of the feed cylinder is connected to the stator, allowing the feed chamber within the feed cylinder to communicate with the discharge channel formed between the stator and rotor. The second end of the integral connecting rod is eccentrically connected to the rotor end that penetrates the feed chamber. The ratio of the outer diameter to the length of the integral connecting rod body located between the first and second ends is... The ratio is 1:20~60. The stator has at least two first connecting ears on its outer side and the fixed base has at least two second connecting ears on its outer side that correspond to the first connecting ears. The first connecting ears and the corresponding second connecting ears are connected by a screw that is axially arranged on the outer side of the feed cylinder. This allows for quick disassembly of the feed cylinder, stator, and rotor, facilitating high-frequency cleaning and preventing food residue from deteriorating inside the feed cylinder. Furthermore, the external bolt connection further improves the ease of assembly and disassembly and ensures connection stability while simplifying the connection structure. It also meets the requirements of easy selection of food-grade materials and maintaining a simple internal structure of the feed cylinder while satisfying the requirements of eccentric connection. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the overall structure of the quick-release screw conveyor pump of this utility model;

[0016] Appendix Figure 2 This is a schematic cross-sectional view of one end of the quick-release screw conveyor pump of this utility model.

[0017] Appendix Figure 3 This is a schematic cross-sectional view of the other end of the quick-release screw conveyor pump of this utility model.

[0018] Appendix Figure 4 This is a cross-sectional structural diagram of the middle section of the quick-release screw conveyor pump of this utility model.

[0019] In the above attached figures: 1. Motor; 2. Reducer; 3. Connecting shaft; 41. Stator; 411. Body; 412. Housing; 42. Rotor; 5. Fixed base; 51. Bearing; 52. Spacer ring; 6. Feed cylinder; 61. Feed chamber; 62. Feed inlet; 7. Sealing assembly; 8. Integrated connecting rod; 81. First end; 82. Second end; 83. Body; 91. First connecting ear; 92. Second connecting ear; 10. Screw; 11. Discharge pipe; 12. Coupling; 13. Sealing ring; 141. First bracket; 142. Second bracket; 15. Base plate. Detailed Implementation

[0020] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0021] Example 1: A quick-release screw conveyor pump includes: a motor 1, a reducer 2 connected to the output shaft of the motor 1, a connecting shaft 3 connected to the output shaft of the reducer 2 at one end, and a stator 41 and a rotor 42 that cooperate with each other. The middle part of the connecting shaft 3 is rotatably mounted on a fixed seat 5 through at least two bearings 51. A feed cylinder 6 is connected to one end of the fixed seat 5 opposite to the reducer 2. A sealing component 7 is provided inside the feed cylinder 6 near one end of the fixed seat 5. The other end of the connecting shaft 3 passes through the sealing component 7 and is eccentrically connected to the first end 81 of an integral connecting rod 8 provided in the feed cylinder 6. The other end of the feed cylinder 6 is connected to the stator 41, so that the feed chamber 61 in the feed cylinder 6 communicates with the discharge channel formed between the stator 41 and the rotor 42.

[0022] The second end 82 of the integrated connecting rod 8 is eccentrically connected to one end of the rotor 42 that passes through the feed chamber 61. The ratio of the outer diameter to the length of the body part 83 of the integrated connecting rod 8 located between the first end 81 and the second end 82 of the integrated connecting rod 8 is 1:20~60. At least two first connecting ears 91 are provided on the outer side of the stator 41. At least two second connecting ears 92 corresponding to the first connecting ears 91 are provided on the outer side of the fixed seat 5. The first connecting ears 91 and the corresponding second connecting ears 92 are connected by a screw 10 arranged axially on the outer side of the feed cylinder 6.

[0023] The first connecting ear 91 is disposed on the outer side of the stator 41 away from the feed cylinder 6; a discharge pipe 11 is fitted on the outer side of the stator 41 away from the feed cylinder 6, and the two first connecting ears 91 are integrally formed on the outer surface of the discharge pipe 11.

[0024] The aforementioned integrated connecting rod 8 is a stainless steel connecting rod; a housing part 412 is provided on the outer side of the body part 411 of the aforementioned stator 41, and the housing part 412 of the stator 41 is sleeved and connected to the feed cylinder 6; the aforementioned sealing assembly 7 is provided at the connection between the feed cylinder 6 and the fixed seat 5.

[0025] The output shaft of the aforementioned reducer 2 is connected to the connecting shaft 3 via a coupling 12. The coupling 12 is connected to both the output shaft of the reducer 2 and the connecting shaft 3 via a keyway.

[0026] A spacer ring 52 is provided between two bearings 51 that are spaced apart along the axial direction of the connecting shaft 3; a sealing ring 13 is installed on the fixed seat 5 on each side of the bearing 51.

[0027] The motor 1 and the reducer 2 are mounted on a base plate 15 via a first bracket 141, and the fixed seat 5 is mounted on the base plate 15 via a second bracket 142 at one end near the reducer 2.

[0028] Example 2: A quick-release screw conveyor pump for conveying large flow rates of food materials includes: a motor 1, a reducer 2 connected to the output shaft of the motor 1, a connecting shaft 3 connected at one end to the output shaft of the reducer 2, and a stator 41 and a rotor 42 that cooperate with each other. The middle part of the connecting shaft 3 is rotatably mounted on a fixed seat 5 through at least two bearings 51. A feed cylinder 6 is connected to one end of the fixed seat 5 opposite to the reducer 2. A sealing assembly 7 is provided inside the feed cylinder 6 near one end of the fixed seat 5. The other end of the connecting shaft 3 passes through the sealing assembly 7 and is eccentrically connected to the first end 81 of an integral connecting rod 8 provided in the feed cylinder 6. The other end of the feed cylinder 6 is connected to the stator 41, so that the feed chamber 61 in the feed cylinder 6 communicates with the discharge channel formed between the stator 41 and the rotor 42.

[0029] Through an external material conveying mechanism, fluid food materials (such as cream, milk, etc.) are fed into the feeding chamber inside the feeding cylinder from the inlet, and then the material is output outward from the discharge channel formed between the stator and the rotor by the eccentrically rotating rotor.

[0030] Because the materials being transported are food products, the feed cylinder needs to be cleaned frequently. Furthermore, the feed cylinder and all parts inside it that come into contact with food products must be made of food-grade materials and be easy to clean. Based on these requirements, the overall structure is designed as a three-section detachable structure consisting of the feed cylinder, stator, and fixed base. This facilitates high-frequency cleaning of the feed cylinder, its internal components, and the stator and rotor, preventing food residue and spoilage inside the feed cylinder.

[0031] The second end 82 of the integrated connecting rod 8 is eccentrically connected to one end of the rotor 42 that passes through the feed chamber 61. The ratio of the outer diameter to the length of the body part 83 of the integrated connecting rod 8 located between the first end 81 and the second end 82 of the integrated connecting rod 8 is 1:20~60. The eccentric drive of the rotor is achieved by the flexibility of the slender integrated connecting rod itself. While meeting the requirements of the screw pump itself, it makes it easy for the material of the connecting rod to meet the requirements of food-grade materials, thereby reducing costs. It can also ensure that the internal components of the feed cylinder have a simple structure and are easy to clean, avoiding food safety hazards caused by the accumulation of residual materials.

[0032] The stator 41 has at least two first connecting ears 91 on its outer side, and the fixed base 5 has at least two second connecting ears 92 corresponding to the first connecting ears 91 on its outer side. The first connecting ears 91 and the corresponding second connecting ears 92 are connected by a screw 10 arranged axially on the outer side of the feed cylinder 6. The three are fixedly connected by a long screw on the outside of the feed cylinder, which can ensure the stability of the connection structure and the convenience of disassembly and assembly, and can also simplify the structure to meet the need to avoid residue accumulation during food transportation.

[0033] The aforementioned integrated connecting rod 8 is a 316 stainless steel connecting rod; the aforementioned feed cylinder 6 has a feed port 62 on the side wall near the fixed seat 5 and on the side opposite to the fixed seat 5 of the sealing assembly 7, which communicates with the feed chamber 61.

[0034] When using the above-mentioned quick-release screw conveyor pump, it can quickly disassemble the feed cylinder, stator, and rotor, thereby facilitating high-frequency cleaning and preventing food material residue and deterioration in the feed cylinder. Furthermore, the external bolt connection can further improve the convenience of disassembly and assembly, and ensure the stability of the connection while simplifying the connection structure. It can also meet the requirements of easy selection of food-grade materials and keeping the internal structure of the feed cylinder simple, while satisfying the requirements of eccentric connection.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A quick-release screw conveyor pump, comprising: The motor (1), the reducer (2) connected to the output shaft of the motor (1), the connecting shaft (3) connected to the output shaft of the reducer (2) at one end, and the stator (41) and rotor (42) that cooperate with each other are characterized in that: the middle part of the connecting shaft (3) is rotatably mounted on a fixed seat (5) by at least two bearings (51), and a feed cylinder (6) is connected to one end of the fixed seat (5) opposite to the reducer (2). A sealing assembly (7) is provided inside the feed cylinder (6) near one end of the fixed seat (5). The other end of the connecting shaft (3) passes through the sealing assembly (7) and is eccentrically connected to the first end (81) of the integral connecting rod (8) provided in the feed cylinder (6). The other end of the feed cylinder (6) is connected to the stator (41), so that the feed chamber (61) in the feed cylinder (6) is connected to the discharge channel formed between the stator (41) and the rotor (42). The second end (82) of the integrated connecting rod (8) is eccentrically connected to one end of the rotor (42) that passes through the feed chamber (61). The ratio of the outer diameter to the length of the body part (83) of the integrated connecting rod (8) located between the first end (81) and the second end (82) of the integrated connecting rod (8) is 1:20~60. At least two first connecting ears (91) are provided on the outside of the stator (41). At least two second connecting ears (92) corresponding to the first connecting ears (91) are provided on the outside of the fixed seat (5). The first connecting ears (91) and the corresponding second connecting ears (92) are connected by a screw (10) arranged axially on the outside of the feed cylinder (6).

2. The quick-release screw conveyor pump according to claim 1, characterized in that: The first connecting ear (91) is located on the outside of the stator (41) away from the feed cylinder (6).

3. The quick-release screw conveyor pump according to claim 2, characterized in that: A discharge pipe (11) is fitted on the outer side of the stator (41) away from the feed cylinder (6), and two first connecting ears (91) are integrally formed on the outer surface of the discharge pipe (11).

4. The quick-release screw conveyor pump according to claim 1, characterized in that: A housing part (412) is provided on the outside of the body part (411) of the stator (41), and the housing part (412) of the stator (41) is sleeved and connected to the feed cylinder (6).

5. The quick-release screw conveyor pump according to claim 1, characterized in that: The sealing assembly (7) is located at the connection between the feed cylinder (6) and the fixed seat (5).

6. The quick-release screw conveyor pump according to claim 1, characterized in that: The integrated connecting rod (8) is a stainless steel connecting rod.

7. The quick-release screw conveyor pump according to claim 6, characterized in that: The integrated connecting rod (8) is made of 316 stainless steel.

8. The quick-release screw conveyor pump according to claim 1, characterized in that: The feed cylinder (6) has a feed port (62) on the side wall near the fixed seat (5) and on the side opposite to the fixed seat (5) of the sealing assembly (7), which communicates with the feed chamber (61).

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