Metering pump energy-saving transmission mechanism with auxiliary spring

Abstract

The metering pump energy-saving transmission mechanism with the auxiliary spring comprises a connecting rod arranged in a pump shell, one end of the connecting rod is connected with a diaphragm assembly in a pump head in a matched mode, the other end of the connecting rod is matched with a driving assembly in a pump body, and the end, connected with the diaphragm assembly, of the connecting rod is sleeved with an elastic assembly. The elastic assembly comprises a spring seat, a spring and an adjusting seat, and the spring seat is matched and fixed with the pump shell; the adjusting seat is matched and fixed with the connecting rod; and one end of the spring is fixed with the spring seat, and the other end of the spring is fixed with the adjusting seat. The pump shell does not need to be filled with oil to be matched with reciprocating motion of the connecting rod, and the overall structure is simplified; the elastic assembly is arranged on the connecting rod close to the diaphragm assembly, one end of the elastic assembly is fixed to the pump shell, the other end of the elastic assembly is fixed to the connecting rod, when the connecting rod reciprocates, the elastic assembly moves along with the connecting rod, elastic pre-tightening force is formed, movement of the connecting rod is promoted, the driving power of the transmission mechanism can be reduced, and the use power of the motor is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission of metering pumps, and in particular relates to an energy-saving transmission mechanism of a metering pump with an auxiliary spring. Background Art

[0002] Mechanical diaphragm metering pump is a special positive displacement pump that can meet various strict process requirements. The flow rate can be adjusted steplessly within the range of 0-100% and is used to transport liquids (especially corrosive liquids).

[0003] Mechanical diaphragm metering pumps are widely used in the water treatment industry and some chemical fields because of their relatively low cost, simple structure and easy maintenance. In recent years, due to the rapid development of the market and some process improvements, the requirements for mechanical diaphragm metering pumps have become increasingly higher.

[0004] The transmission mechanism of the existing metering pump needs oil to work, and consumes a lot of energy during use, and the power required by the motor is large. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, the utility model provides an energy-saving transmission mechanism of a metering pump with an auxiliary spring. An elastic component is arranged on a connecting rod to form an elastic preload force, which can reduce the driving power of the transmission mechanism and the power consumption of the motor during use.

[0006] The energy-saving transmission mechanism of a metering pump with an auxiliary spring comprises a connecting rod arranged in a pump casing, one end of the connecting rod is connected to a diaphragm assembly in a pump head, and the other end is connected to a driving assembly in a pump body, and an elastic assembly is sleeved on the end of the connecting rod connected to the diaphragm assembly, and the elastic assembly comprises a spring seat, a spring and an adjustment seat, the spring seat is fixed to the pump casing; the adjustment seat is fixed to the connecting rod; the spring is sleeved on the connecting rod, one end of the spring is fixed to the spring seat, and the other end is fixed to the adjustment seat.

[0007] Furthermore, the spring seat is a U-shaped sleeve structure, and the annular side wall at the open end is fixed to the pump housing; one end of the spring is fixed to the bottom wall, and a through hole for the connecting rod to pass through is provided on the bottom wall, and the inner diameter of the through hole is larger than the outer diameter of the connecting rod.

[0008] Furthermore, one end of the pump housing is connected to the pump head, and the other end is connected to the pump body. An annular groove is provided between the pump housing and the pump head, and the annular side wall of the open end of the spring seat is fixedly connected to the annular groove.

[0009] Furthermore, the adjustment seat is arranged at one end of the connecting rod close to the pump head, including an integrally arranged seat and a rib, the seat is fixedly sleeved with the connecting rod, the rib is arranged close to the pump head, and the rib is clamped with the spring to drive the spring to move synchronously.

[0010] Furthermore, a sealing ring is arranged between the sleeve and the connecting rod.

[0011] Furthermore, the driving assembly includes a motor, an eccentric wheel is arranged on the driving shaft of the motor, and the eccentric wheel is hingedly matched with the connecting rod; the driving shaft is connected to the pump body through two sets of bearing groups, and the two sets of bearing groups are respectively arranged on both sides of the eccentric wheel.

[0012] Compared with the prior art, the utility model has the following advantages: the pump housing of the utility model does not need to be filled with oil to coordinate the reciprocating motion of the connecting rod, thereby simplifying the overall structure; and by arranging an elastic component on the connecting rod close to the diaphragm component, one end of the elastic component is fixed to the pump housing and the other end is fixed to the connecting rod. When the connecting rod reciprocates, the elastic component follows the connecting rod to form an elastic preload, which promotes the movement of the connecting rod, can reduce the driving power of the transmission mechanism, and reduce the power consumption of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is one of the internal cross-sectional views of the utility model;

[0015] Figure 3 This is the second internal sectional view of the present utility model.

[0016] In the figure: 1-pump head, 2-pump body, 3-pump casing, 4-connecting rod, 5-driving assembly, 51-motor, 52-driving shaft, 53-eccentric wheel, 54-bearing group, 6-elastic assembly, 61-spring seat, 62-spring, 63-adjusting seat, 631-sleeve seat, 632-rib, 64-sealing ring. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the present invention is further described below in conjunction with the accompanying drawings.

[0018] like Figure 1-Figure 3 As shown, an energy-saving transmission mechanism of a metering pump with an auxiliary spring includes a connecting rod 4 arranged in a pump housing 3, one end of the pump housing 3 is connected to a pump head 1, and the other end is connected to a pump body 2; one end of the connecting rod 4 is connected to a diaphragm assembly in the pump head 1, and the other end is connected to a driving assembly 5 in the pump body 2, and one end of the connecting rod 4 connected to the diaphragm assembly is sleeved with an elastic assembly 6, which includes a spring seat 61, a spring 62 and an adjustment seat 63, the spring seat 61 is fixed to the pump housing 3; the adjustment seat 63 is fixed to the connecting rod 4; the spring 62 is sleeved on the connecting rod 4, one end of which is fixed to the spring seat 61, and the other end is fixed to the adjustment seat 63.

[0019] Specifically, the spring seat 61 is a U-shaped sleeve structure, and the annular side wall at the open end is fixed with the pump housing 3; one end of the spring 62 is fixed with the bottom wall, and a through hole is provided on the bottom wall for the connecting rod 4 to pass through, and the inner diameter of the through hole is greater than the outer diameter of the connecting rod 4. In this embodiment, an annular groove is provided between the pump housing 3 and the pump head 1, and the annular side wall at the open end of the spring seat 61 is fixedly engaged with the annular groove. The adjustment seat 63 is sleeved on one end of the connecting rod 4 close to the pump head 1, and includes an integrally arranged sleeve 631 and a rib 632. The sleeve 631 is fixedly sleeved with the connecting rod 4, and the rib 632 is arranged close to the pump head 1. The rib 632 is engaged with the spring 62, driving the spring 62 to move synchronously. A sealing ring 64 is provided between the sleeve 631 and the connecting rod 4 to ensure the sealing and stability of the connection between the adjustment seat 63 and the connecting rod 4.

[0020] In the present application, the driving assembly 5 includes a motor 51, an eccentric wheel 53 is arranged on the driving shaft 52 of the motor 51, and the eccentric wheel 53 is hingedly matched with the connecting rod 4; the driving shaft 52 is connected to the pump body 2 through two sets of bearing groups 54, and the two sets of bearing groups 54 are respectively arranged on both sides of the eccentric wheel 53. The bearing groups 54 symmetrically arranged on both sides of the eccentric wheel 53 ensure the balance and stability of the driving shaft 52 when working, so that the driving shaft 52 and the eccentric wheel 53 can be rotatably arranged in the pump body 2.

[0021] It can be understood that the present application does not require oil filling in the pump housing 3. An elastic component 6 is provided on the connecting rod 4, one end of the elastic component 6 is fixed to the pump housing 3, and the other end is fixed to the connecting rod 4. When the connecting rod 4 reciprocates, the spring 62 of the elastic component 6 moves with the connecting rod 4, forming an elastic preload force, promoting the movement of the connecting rod 4, reducing the driving power required by the transmission mechanism, and reducing the power used by the motor 51.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An energy-saving transmission mechanism of a metering pump with an auxiliary spring, comprising a connecting rod (4) arranged in a pump housing (3), one end of the connecting rod (4) being connected to a diaphragm assembly in a pump head (1), and the other end of the connecting rod (4) being connected to a driving assembly (5) in a pump body (2), characterized in that: An elastic component (6) is sleeved on one end of the connecting rod (4) connected to the diaphragm component. The elastic component (6) comprises a spring seat (61), a spring (62) and an adjustment seat (63). The spring seat (61) is fixedly coupled to the pump housing (3); the adjustment seat (63) is fixedly coupled to the connecting rod (4); the spring (62) is sleeved on the connecting rod (4), one end of which is fixedly coupled to the spring seat (61) and the other end of which is fixedly coupled to the adjustment seat (63).

2. The energy-saving transmission mechanism of a metering pump with an auxiliary spring according to claim 1, characterized in that: The spring seat (61) is a U-shaped sleeve structure, and the annular side wall at the open end is fixed to the pump housing (3); one end of the spring (62) is fixed to the bottom wall, and a through hole is provided on the bottom wall for the connecting rod (4) to pass through, and the inner diameter of the through hole is larger than the outer diameter of the connecting rod (4).

3. The energy-saving transmission mechanism of a metering pump with an auxiliary spring according to claim 2, characterized in that: One end of the pump housing (3) is connected to the pump head (1), and the other end is connected to the pump body (2); an annular groove is provided between the pump housing (3) and the pump head (1); and the annular side wall of the open end of the spring seat (61) is fixedly engaged with the annular groove.

4. The energy-saving transmission mechanism of a metering pump with an auxiliary spring according to claim 2, characterized in that: The adjustment seat (63) is sleeved on one end of the connecting rod (4) close to the pump head (1), and comprises a sleeve seat (631) and a retaining edge (632) which are integrally arranged. The sleeve seat (631) and the connecting rod (4) are fixedly sleeved, and the retaining edge (632) is arranged close to the pump head (1). The retaining edge (632) is clamped with the spring (62), thereby driving the spring (62) to move synchronously.

5. The energy-saving transmission mechanism of a metering pump with an auxiliary spring according to claim 4, characterized in that: A sealing ring (64) is provided between the sleeve (631) and the connecting rod (4).

6. A metering pump energy-saving transmission mechanism with an auxiliary spring according to any one of claims 1 to 5, characterized in that: The driving assembly (5) comprises a motor (51), an eccentric wheel (53) is arranged on the driving shaft (52) of the motor (51), and the eccentric wheel (53) is hingedly matched with the connecting rod (4); the driving shaft (52) is connected to the pump body (2) via two sets of bearing groups (54), and the two sets of bearing groups (54) are respectively arranged on both sides of the eccentric wheel (53).

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