Built-in double-cavity type gear pump

Abstract

The utility model discloses a built-in double-cavity type gear pump which comprises a base, a pump body, an upper cover, a driving gear, double cavities, a driven gear, a main shaft, a pumping channel, an oil outlet and an oil return opening. The pump body is provided with double cavities on two sides of the driving gear and provided with driven gears respectively, and the driving gear is in meshed connection with the driven gears and is coaxially and externally connected with the main shaft from the side of the upper cover. According to the built-in double-cavity type gear pump provided by the utility model, the two driven gears are driven by the driving gear, and the driving gear is driven by the main shaft, so that the whole pump body operates synchronously, the driven gears in the two cavities work independently, the two oil outlets pump oil independently, and the two oil return ports pump oil simultaneously; the pump body is compact in structure, the multi-point lubrication requirement is met, and an oil pump motor does not need to be independently arranged for each pumping channel.

Description

Technical Field

[0001] The utility model relates to the field of gear pumps, in particular to a built-in double-cavity gear pump. Background Art

[0002] Gear pumps usually use a single-channel structure with one inlet and one outlet to transport oil. The pump body is generally designed with a stack of gear cavities in a single motor direct drive mode. If multiple oil channels are to be pumped independently, multiple oil channels must be established, and a gear motor must be allocated to each oil channel. However, this will result in negative effects such as wasted installation space and increased equipment costs. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a built-in double-chamber gear pump, in which two driven gears are driven by a driving gear, and the driving gear is driven by the main shaft, so that the whole pump body runs synchronously, the driven gears in the two chambers work independently, the two oil outlets pump oil independently, and the two oil return ports pump oil at the same time. This pump body has a compact structure, meets the requirements of multi-point lubrication, and there is no need to configure an oil pump motor for each pumping channel separately.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a built-in double-chamber gear pump, including a base, a pump body, an upper cover, a driving gear, a double chamber, a driven gear, a main shaft, a pumping channel, an oil outlet, and an oil return port. The pump body and the upper cover are stacked on the base in sequence. The center of the pump body has a cavity and a driving gear is installed. The pump body has double chambers on both sides of the driving gear and driven gears are installed respectively. The driving gear is meshed and connected to the driven gear and is coaxially connected to the main shaft from the upper cover side. The double chambers each open a mutually isolated pumping channel, and the pumping channel leads to an oil outlet and an oil return port on the base or the outer wall of the pump body.

[0005] In a preferred embodiment of the utility model, the double cavity is composed of two cylindrical sinks, and the sinks are separated by driving gears on both sides of the cavity.

[0006] In a preferred embodiment of the present utility model, the base and the upper cover are opened with holes and inlaid with bearings that carry and connect the main shaft.

[0007] The beneficial effects of the utility model are as follows: the utility model provides a built-in double-chamber gear pump, which drives two driven gears through a driving gear, and the driving gear is driven by the main shaft, so that the entire pump body operates synchronously, the driven gears in the two chambers work independently, the two oil outlets pump oil independently, and the two oil return ports pump oil at the same time. This pump body has a compact structure, meets the requirements of multi-point lubrication, and there is no need to separately configure an oil pump motor for each pumping channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0009] Figure 1 This is the overall structural diagram of a built-in double-chamber gear pump of the utility model;

[0010] Figure 2 This is an exploded view from the front of a built-in double-chamber gear pump of the utility model;

[0011] Figure 3 It is an exploded view from the rear perspective of a built-in double-chamber gear pump of the utility model. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] like Figure 1-3 As shown, the embodiment of the utility model includes:

[0014] A built-in double-chamber gear pump comprises a base 1, a pump body 2, an upper cover 3, a driving gear 4, a double chamber 5, a driven gear 6, a main shaft 7, a pumping channel 8, an oil outlet 9, and an oil return port 10. The pump body 2 and the upper cover 3 are sequentially stacked on the base 1. The pump body 2 has a cavity in the center and is equipped with a driving gear 4. The pump body 2 has double chambers 5 on both sides of the driving gear 4 and are respectively equipped with driven gears 6. The driving gear 4 is meshed and connected to the driven gear 6 and is coaxially connected to the main shaft 7 from the upper cover 3 side. The double chambers 5 each open a mutually isolated pumping channel 8, and the pumping channel 8 leads to an oil outlet 9 and an oil return port 10 on the outer wall of the base 1 or the pump body 2.

[0015] The double cavity 5 is composed of two cylindrical sinks, and the sinks are separated by the driving gear 4 on both sides of the cavity.

[0016] Furthermore, the base 1 and the upper cover 3 are provided with holes and inlaid with bearings for supporting and connecting the main shaft 7 .

[0017] This product uses a main shaft 7 to drive two driven gears 6 at the same time to achieve oil pumping. One driven gear 6 is equipped with a pumping channel 8. The two driven gears 6 can simultaneously divide the oil into two outputs. The pumping channel 8 is composed of a transverse channel and an axial channel connected together. The oil outlet 9 and the oil return port 10 can be opened on the outer wall of the pump body 2 or the outer wall of the base 1 according to the connection requirements. The two pumping channels 8 transmit two oils at the same flow rate and the same flow rate, which can be achieved by only one motor driving the main shaft 7.

[0018] In summary, the utility model provides a built-in double-chamber 5-type gear pump, which drives two driven gears 6 through a driving gear 4, and the driving gear 4 is driven by the main shaft 7, so that the entire pump body 2 operates synchronously, and the driven gears 6 in the two chambers work independently, and the two oil outlets 9 independently pump oil, and the two oil return ports 10 pump oil at the same time. This pump body 2 has a compact structure, meets the requirements of multi-point lubrication, and there is no need to separately configure an oil pump motor for each pumping channel 8.

[0019] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A built-in double-chamber gear pump, characterized in that: It includes a base, a pump body, an upper cover, a driving gear, a double cavity, a driven gear, a main shaft, a pumping channel, an oil outlet, and an oil return port. The pump body and the upper cover are stacked on the base in sequence. The pump body has a cavity in the center and a driving gear installed. The pump body has double cavities on both sides of the driving gear and driven gears are installed respectively. The driving gear meshes with the driven gear and is coaxially connected to the main shaft from the upper cover side. The double cavities each open a mutually isolated pumping channel, and the pumping channel leads to an oil outlet and an oil return port at the base or the outer wall of the pump body.

2. The built-in double-chamber gear pump according to claim 1, characterized in that: The double cavity is composed of two cylindrical sinks, and the sinks are separated on both sides of the cavity by driving gears.

3. The built-in double-chamber gear pump according to claim 1, characterized in that: The base and the upper cover are opened with holes and inlaid with bearings that carry and connect the main shaft.

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