Lubricating system for guide rail head of machine head of boarding machine

Abstract

The utility model discloses a machine head guide rail head lubricating system of a boarding machine, which comprises a machine head guide rail head and a chain wheel, the machine head guide rail head is connected with a main shaft, the chain wheel is provided with a central hole, a bearing is arranged in the central hole, the chain wheel is fixed on the main shaft through the bearing, and the main shaft is connected with an oil baffle cover. An oil storage cavity is formed between the oil blocking cover in the center hole and the top of the bearing, the main shaft is provided with an oil passing channel which is communicated to the oil storage cavity from the bottom of the main shaft, and a gap exists between the oil blocking cover and the peripheral wall body of the center hole. The oil baffle cover is connected to the main shaft, the main shaft does not rotate when the chain wheel rotates, equivalently, relative rotation exists between the oil baffle cover and the chain wheel, a gap exists between the oil baffle cover and the peripheral wall body of the center hole, and high-temperature gas is easily released from the gap in the relative rotation process. Therefore, bad consequences such as grease hardening caused by heating due to increase of temperature rise in the bearing are effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of setting machines, in particular to a lubrication system for the guide rail head of a setting machine head. Background Art

[0002] The patent with the patent number "CN103122990B" discloses a "lubrication system for the passive sprocket of the oiling track of a stenter", in which the sealing cover is fixed on the sprocket.

[0003] In this patent, the upper cover plate for bearing oil filling is in a sealed state, so the high-temperature gas generated inside the bearing cannot be released. If the user unit cannot timely inject new lubricating grease into the bearing oil cavity before the grease hardens, the grease in the bearing will harden or even carbonize. This hardened grease will cause a blockage phenomenon when the grease is injected next time, resulting in the problem that the grease cannot be injected into the bearing, losing lubrication and causing bearing damage. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lubrication system for the guide rail head of a setting machine head.

[0005] The innovation point of the utility model is that in the utility model, the oil baffle is connected to the main shaft. When the sprocket rotates, the main shaft does not rotate. It is equivalent to a relative rotation between the oil baffle and the sprocket. There is a gap between the oil baffle and the peripheral wall of the central hole. During the relative rotation, the high-temperature gas is easily released from the gap, effectively preventing adverse consequences such as increased temperature rise in the bearing causing the grease to harden due to heat.

[0006] To achieve the above-mentioned utility model purpose, the technical solution of the utility model is as follows:

[0007] A lubrication system for the guide rail head of a setting machine head includes a guide rail head of the machine head and a sprocket. A main shaft is connected to the guide rail head of the machine head. The sprocket is provided with a central hole, and a bearing is arranged in the central hole. The sprocket is fixed on the main shaft through the bearing. A oil baffle is connected to the main shaft. An oil storage cavity is formed between the oil baffle in the central hole and the top of the bearing. A oil passage is arranged on the main shaft, which leads from the bottom of the main shaft to the oil storage cavity. There is a gap between the oil baffle and the peripheral wall of the central hole.

[0008] Further, a gap with an S-shaped cross-section is formed between the oil baffle and the top peripheral wall of the central hole. It is a labyrinth structure and the oil is not easy to overflow.

[0009] Further, the sprocket includes a sprocket disc and a sprocket seat. A plurality of oil scraping plates are arranged at the bottom of the sprocket seat. An oil drain port is arranged on the guide rail head of the machine head. The sprocket scrapes oil while rotating and then discharges it from the oil drain port.

[0010] Further, there are two oil scraping plates, which are evenly arranged along the circumferential direction of the sprocket. With the even arrangement, the rotation of the sprocket is more stable.

[0011] Further, the oil drain port is in the shape of a horn with a larger lower opening. This is beneficial for draining oil and slag.

[0012] Further, a side channel communicating with the bearing is also provided on the side wall of the oil passage on the main shaft. It is used to directly lubricate the bearing.

[0013] Further, a circle of bumps is provided at the bottom of the sprocket piece, a circle of protrusions is provided on the head of the machine head guide rail, and a circle of grooves for clamping the bumps is provided on the protrusions. This can prevent filamentous substances such as cloth edges from winding into the bottom of the sprocket seat, thus preventing the accumulation of filamentous substances at the bottom of the sprocket seat and the friction heat generation between the sprocket and the bearing, which may cause aggravated damage to the bearing.

[0014] Further, an induction probe for sensing the temperature and grease content of the oil storage cavity is provided on the oil baffle. It plays an alarm function.

[0015] Further, the induction probe includes a temperature sensor and a pressure sensor.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, the oil baffle is connected to the main shaft. When the sprocket rotates, the main shaft does not rotate. It is equivalent to a relative rotation between the oil baffle and the sprocket. There is a gap between the oil baffle and the peripheral wall of the central hole. During the relative rotation, the high-temperature gas is easily released from the gap, thus effectively preventing the increase in temperature rise in the bearing, which may cause adverse consequences such as hardening of the grease due to heat.

[0018] 2. In the present utility model, through the settings of the oil drain port and the oil scraping plate, the grease can be quickly drained and is not easily accumulated.

[0019] 3. In the present utility model, through the setting of the induction probe, it can play an alarm and prompt role when the bearing is short of oil or the temperature rise of the bearing is too high, thus effectively reducing or avoiding the risk of bearing damage. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present utility model. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings.

[0022] Embodiment 1: As Figure 1As shown in the figure, a lubrication system for the head guide of a shaping machine includes a head guide 1 and a sprocket 2. A main shaft 3 is connected to the head guide 1. The sprocket 2 is provided with a central hole 2.1. A bearing 4 is arranged in the central hole 2.1. The sprocket 2 is fixed on the main shaft 3 through the bearing 4. A oil retaining cover 5 is connected to the main shaft 3. An oil storage cavity 6 is formed between the oil retaining cover 5 and the top of the bearing 4 in the central hole 2.1. The main shaft 3 is provided with an oil passage 3.1 that leads from the bottom of the main shaft 3 to the oil storage cavity 6. A side passage 3.2 communicating with the bearing 4 is also arranged on the side wall of the oil passage 3.1 on the main shaft 3. There is a gap 9 between the oil retaining cover 5 and the surrounding wall of the central hole 2.1. A gap with an S-shaped cross-section is formed between the oil retaining cover 5 and the top surrounding wall of the central hole 2.1. An induction probe 8 for sensing the temperature and grease content in the oil storage cavity is arranged on the oil retaining cover 5. The induction probe 8 includes a temperature sensor and a pressure sensor.

[0023] The sprocket 2 includes a sprocket piece 2.2 and a sprocket seat 2.3. A plurality of oil scraping plates 7 are arranged at the bottom of the sprocket seat 2.3. An oil drain port 1.1 is arranged on the head guide 1. There are two oil scraping plates 7 and they are evenly arranged along the circumferential direction of the sprocket 2. The oil drain port 1.1 is a trumpet-shaped structure with a larger lower opening.

[0024] A circle of convex blocks 2.21 is arranged at the bottom of the sprocket piece 2.2. A circle of protrusions 1.2 is arranged on the head guide 1. A circle of grooves 1.21 for clamping the convex blocks 2.21 is arranged on the protrusions 1.2.

[0025] Working principle: Since the sprocket 2 rotates passively, the chain drives the sprocket 2 to rotate while the main shaft 3 does not rotate. Therefore, relative rotation will occur between the oil retaining cover 5 and the sprocket 2. During the rotation process, high-temperature gas overflows from the gap 9.

[0026] The described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A lubrication system for a head guide rail head of a shaping machine, comprising a head guide rail head and a sprocket, wherein the head guide rail head is connected to a main shaft, the sprocket is provided with a center hole, a bearing is provided in the center hole, and the sprocket is fixed on the main shaft through the bearing, characterized in that: The main shaft is connected with an oil baffle cover, an oil storage cavity is formed between the oil baffle cover and the top of the bearing in the center hole, an oil passage from the bottom of the main shaft to the oil storage cavity is provided on the main shaft, and a gap exists between the oil baffle cover and the surrounding walls of the center hole.

2. The lubrication system for the guide rail head of the shaping machine according to claim 1, characterized in that: A gap with an S-shaped cross section is formed between the oil retaining cover and the top wall around the central hole.

3. The lubrication system for the guide rail head of the shaping machine according to claim 1, characterized in that: The sprocket comprises a sprocket plate and a sprocket seat. A plurality of oil scraping plates are arranged at the bottom of the sprocket seat, and an oil drain port is arranged on the head rail head of the machine head.

4. The lubrication system for the guide rail head of the shaping machine according to claim 3 is characterized in that: There are two oil scraping plates which are evenly arranged along the circumferential direction of the sprocket.

5. The lubrication system for the guide rail head of the shaping machine according to claim 3, characterized in that: The oil discharge port is a trumpet-shaped structure with a large lower opening.

6. The lubrication system for the guide rail head of the shaping machine according to claim 1, characterized in that: The side wall of the oil passage on the main shaft is also provided with a side channel communicated with the bearing.

7. The lubrication system for the guide rail head of the shaping machine according to claim 3, characterized in that: The bottom of the sprocket is provided with a circle of protrusions, the head of the machine head guide rail is provided with a circle of protrusions, and the protrusions are provided with a circle of grooves for clamping the protrusions.

8. The lubrication system for the guide rail head of the shaping machine according to claim 1, characterized in that: The oil retaining cover is provided with a sensing probe for sensing the temperature and grease content of the oil storage cavity.

9. The lubrication system for the guide rail head of the shaping machine according to claim 8, characterized in that: The sensing probe includes a temperature sensor and a pressure sensor.

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