Bearing special for wheat straw pulverizer

Abstract

This utility model provides a special bearing for wheat straw crushers, belonging to the field of spherical bearing technology. It addresses the problem of excessive oil injection pressure causing deformation of the bearing oil seal and loss of sealing function. The bearing includes a bearing mounting base, an oil injection nozzle, an eccentric sleeve, a bearing set screw, a protective and impact-resistant mechanism, and an oil injection protection mechanism. The oil injection nozzle is fixedly connected above the oil injection connector, which communicates with the interior of the nozzle. The spherical bearing body is embedded inside the bearing mounting base. The eccentric sleeve is fitted onto the front end of the inner ring of the spherical bearing body. The bearing set screw is threaded onto the outside of the eccentric sleeve. The protective and impact-resistant mechanism is located on the outside of the eccentric sleeve. The oil injection protection mechanism is located on the inside of the oil injection connector, thus protecting the bearing oil seal, preventing deformation due to high pressure, ensuring the sealing effect of the oil seal, and improving the overall performance of the bearing.

Description

Technical Field

[0001] This utility model belongs to the field of spherical bearing technology, and more specifically, it relates to a special bearing for wheat straw crushers. Background Technology

[0002] In the process of agricultural modernization, the effective treatment and comprehensive utilization of wheat straw has become an important research topic. Wheat straw crushers are key equipment for achieving goals such as straw return to the field, feed processing, and biomass energy conversion. During the operation of a wheat straw crusher, the bearing, as a core component, directly affects the stability, service life, and maintenance costs of the entire machine. The working environment of a wheat straw crusher is complex and harsh; therefore, spherical roller bearings are generally used. The installation of spherical roller bearings is relatively simple, and they have an automatic self-aligning function, allowing for a certain angular deviation between the shaft and the bearing housing (generally 1.5°-3°). During operation, due to factors such as vibration and installation errors, slight misalignment may occur between the shaft and the bearing housing. Spherical roller bearings can automatically compensate for this misalignment, ensuring normal bearing operation and reducing additional stress and wear caused by misalignment.

[0003] The existing application number is CN201310213969.2. This invention provides an external spherical bearing, including a first grease nipple located on the upper part of the bearing housing, an outer bearing ring in spherical contact with the bearing housing, an inner bearing ring, a plurality of steel balls evenly distributed between the inner and outer bearing rings, a cage fitted on the steel balls, two sealing rings placed between the inner and outer bearing rings, and two retaining pins provided on the spherical outer wall of the outer bearing ring. A second grease nipple is also provided on the axially outward direction of the inner bearing ring. An oil guide groove is provided on the inner wall of the inner bearing ring corresponding to the location of the second grease nipple, extending inward along the axial direction of the inner bearing ring. The inward end of the oil guide groove is located at the lower part of the lubrication cavity formed by the outer bearing ring, inner bearing ring, and sealing rings, and has an oil guide hole connecting the lubrication cavity and the oil guide groove. This bearing overcomes the defects of existing bearing lubrication methods, greatly improves the performance of external spherical bearings, and extends their service life.

[0004] Based on the above, the existing spherical bearings used in wheat straw crushers require the addition of grease after a period of use. However, many users add grease to the bearings with excessive pressure, which can easily cause the oil seals to deform, wear, or even break, resulting in loss of sealing function and affecting the bearing's performance. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a special bearing for wheat straw crushers. This addresses the issue that existing spherical bearings used in wheat straw crushers require grease to be added after a period of use. However, many users add grease to the bearings under excessive pressure, which can easily cause the oil seal to deform, wear, or even break, resulting in loss of sealing and affecting the bearing's performance.

[0006] The purpose and effect of this utility model of a special bearing for wheat straw crushers are achieved by the following specific technical means:

[0007] A special bearing for a wheat straw crusher includes a bearing mounting base, an oil injection connector, an oil injection nozzle, an outer spherical bearing body, an eccentric sleeve, a bearing set screw, a protective and impact-resistant mechanism, and an oil injection protection mechanism. The oil injection connector is fixedly connected to the top of the bearing mounting base. The oil injection nozzle is fixedly connected to the top of the oil injection connector, and the oil injection connector communicates internally with the oil injection nozzle. The outer spherical bearing body is embedded inside the bearing mounting base. The eccentric sleeve is fitted onto the front end of the inner ring of the outer spherical bearing body. The bearing set screw is threaded to the outside of the eccentric sleeve. The protective and impact-resistant mechanism is located on the outside of the eccentric sleeve. The oil injection protection mechanism is located on the inside of the oil injection connector.

[0008] Furthermore, the protective and impact-resistant mechanism also includes an impact-resistant protective net; the impact-resistant protective net is fixedly connected to the outer rear end of the eccentric sleeve and is positioned in front of the outer spherical bearing body.

[0009] Furthermore, the oil injection protection mechanism includes: a protection trigger; the protection trigger is provided in two sets, and the upper end of each set of protection triggers is provided with an inclined structure. The two sets of protection triggers are slidably connected to the front and rear sides of the inside of the oil injection connector.

[0010] Furthermore, the oil filling protection mechanism also includes: a protection display rod, an oil filling display groove, and a display connecting spring; two sets of protection display rods are provided, each fixedly connected to the outside of the protection trigger, and each set of protection display rods is slidably connected to the front and rear sides of the inside of the oil filling connector; two sets of oil filling display grooves are provided, each set of oil filling display grooves being annular groove structures, and each set of oil filling display grooves being opened on the outer periphery of the protection display rod; two sets of display connecting springs are provided, each set of display connecting springs being fixedly connected to the outside of the protection trigger, and each set of display connecting springs being fixedly connected to the oil filling connector on its outer side.

[0011] Furthermore, the oil filling protection mechanism also includes: a protection blocking block and a protection blocking spring; two sets of protection blocking blocks are provided, and the two sets of protection blocking blocks are slidably connected to the front and rear sides of the inside of the oil filling nozzle; two sets of protection blocking springs are provided, and the two sets of protection blocking springs are fixedly connected to the front and rear ends of the oil filling nozzle, and the front and rear ends of the two sets of protection blocking springs are fixedly connected to the protection blocking block.

[0012] Furthermore, the oil injection protection mechanism also includes: a first blocking trigger, a second blocking trigger, and a blocking reset spring; two sets of the first blocking trigger are provided, and the two sets of the first blocking trigger are slidably connected to the front and rear sides of the upper part of the oil injection connector, respectively, and the upper ends of the two sets of the first blocking trigger are in frictional contact with the protection blocking plug; two sets of the second blocking trigger are provided, and the two sets of the second blocking trigger are fixedly connected to the outside of the protection trigger, and the two sets of the second blocking trigger and the two sets of the first blocking trigger form a wedge structure; two sets of the blocking reset spring are provided, and the two sets of the blocking reset spring are fixedly connected to the lower end of the first blocking trigger, and the lower ends of the two sets of the blocking reset spring are fixedly connected to the oil injection connector.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model, through the setting of a protective and impact-resistant mechanism, uses an impact-resistant protective net to block the debris generated during breakage, preventing the debris from impacting the sealing cover of the outer spherical bearing body, thus protecting the outer spherical bearing body and extending its service life.

[0015] This invention utilizes an oil injection protection mechanism. Lubricating grease is pushed outwards to a protective trigger, causing it to move outwards. This movement of the protective trigger moves the protective indicator rod outwards, allowing the user to judge the oil injection pressure by observing whether the oil injection indicator groove is exposed. When the oil injection indicator groove is exposed, the user should reduce the oil injection pressure, facilitating the user's observation of the oil injection pressure. Once the user's oil injection pressure exceeds a threshold, the protective trigger is pushed outwards, causing the second blocking trigger to move outwards as well. The second blocking trigger then contacts the first blocking trigger, causing it to be pushed downwards. This downward movement of the first blocking trigger no longer limits the protective blocking block. At this point, the protective blocking block moves in opposite directions under the action of the protective blocking spring, effectively sealing the oil injection nozzle and preventing further grease injection. This protects the bearing oil seal from deformation due to high pressure, ensuring the sealing effect of the oil seal and improving the overall performance of the bearing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the protective blocking plug structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the impact-resistant protective net structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the protective display rod structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the protective triggering element structure of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Bearing mounting base; 101. Impact-resistant protective mesh; 2. Oil filling connector; 201. Protection trigger; 202. Protection indicator rod; 203. Oil filling indicator groove; 204. Indicator connecting spring; 205. Protection blocking plug; 206. Protection blocking spring; 207. First blocking trigger; 208. Second blocking trigger; 209. Blocking reset spring; 3. Oil filling nozzle; 4. Outer spherical bearing body; 5. Eccentric sleeve; 6. Bearing set screw. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0024] Example 1: As shown in the attached document Figures 1 to 3 As shown:

[0025] This utility model provides a special bearing for a wheat straw crusher, including a bearing mounting base 1, an oil injection connector 2, an oil injection nozzle 3, an outer spherical bearing body 4, an eccentric sleeve 5, a bearing set screw 6, and a protective and impact-resistant mechanism; the oil injection connector 2 is fixedly connected to the top of the bearing mounting base 1; the oil injection nozzle 3 is fixedly connected to the top of the oil injection connector 2, and the oil injection connector 2 and the oil injection nozzle 3 are internally connected; the outer spherical bearing body 4 is embedded in the inner side of the bearing mounting base 1; the eccentric sleeve 5 is sleeved on the front end of the inner ring of the outer spherical bearing body 4; the bearing set screw 6 is threadedly connected to the outer side of the eccentric sleeve 5; the protective and impact-resistant mechanism is set on the outer side of the eccentric sleeve 5.

[0026] The protective and impact-resistant mechanism also includes: an impact-resistant protective net 101; the impact-resistant protective net 101 is fixedly connected to the outer rear end of the eccentric sleeve 5, and the impact-resistant protective net 101 is set in front of the outer spherical bearing body 4.

[0027] The specific usage and function of this embodiment: When wheat straw is crushed, the impact-resistant protective net 101 blocks the debris generated during crushing, preventing the debris from impacting the sealing cover of the outer spherical bearing body 4, thus protecting the outer spherical bearing body 4 and extending its service life.

[0028] Example 2: This utility model provides a special bearing for a wheat straw crusher, based on Example 1, such as... Figures 1 to 5 As shown, it also includes an oil injection protection mechanism, which is located inside the oil injection connector 2.

[0029] The oil filling protection mechanism includes: a protection trigger 201, a protection display rod 202, an oil filling display groove 203, a display connecting spring 204, a protection blocking block 205, a protection blocking spring 206, a first blocking trigger 207, a second blocking trigger 208, and a blocking reset spring 209. Two sets of protection triggers 201 are provided, each with a sloping structure at its upper end. The two sets of protection triggers 201 are slidably connected to the front and rear sides of the interior of the oil filling connector 2. Two sets of protection display rods 202 are also provided. Two sets of protection indicator rods 202 are fixedly connected to the outside of the protection trigger 201, and the two sets of protection indicator rods 202 are slidably connected to the front and rear sides of the inside of the oil filling connector 2; two sets of oil filling indicator grooves 203 are provided, both of which are annular groove structures, and the two sets of oil filling indicator grooves 203 are respectively opened on the outer periphery of the protection indicator rods 202; two sets of indicator connecting springs 204 are provided, and the two sets of indicator connecting springs 204 are fixedly connected to the outside of the protection trigger 201, and the outside of the two sets of indicator connecting springs 204 are connected to the oil filling... Connector 2 is fixedly connected; two sets of protective blocking blocks 205 are provided, and the two sets of protective blocking blocks 205 are slidably connected to the front and rear sides of the inside of the oil filling nozzle 3; two sets of protective blocking springs 206 are provided, and the two sets of protective blocking springs 206 are fixedly connected to the front and rear ends of the oil filling nozzle 3, and the front and rear ends of the two sets of protective blocking springs 206 are fixedly connected to the protective blocking blocks 205; two sets of first blocking triggers 207 are provided, and the two sets of first blocking triggers 207 are slidably connected to the front and rear sides of the upper part of the inside of the oil filling connector 2, and the two sets of first blocking triggers 207 are slidably connected to the front and rear sides of the inside of the oil filling connector 2, and the two sets of first blocking triggers 207 are fixedly ...3, and the two sets of first blocking triggers 205 are fixedly connected to the front and rear sides of the inside of the inside of the oil filling connector 3, and the two sets of first blocking triggers 205 are fixedly connected to the front and rear sides of the inside of the inside of the oil filling connector 3, and the two sets of The upper ends of the first blocking trigger 207 are in frictional contact with the protective blocking plug 205; two sets of second blocking triggers 208 are provided, and the two sets of second blocking triggers 208 are respectively fixedly connected to the outside of the protective trigger 201, and the two sets of second blocking triggers 208 and the two sets of first blocking triggers 207 respectively form a wedge structure; two sets of blocking reset springs 209 are provided, and the two sets of blocking reset springs 209 are respectively fixedly connected to the lower ends of the first blocking trigger 207, and the lower ends of the two sets of blocking reset springs 209 are fixedly connected to the oil injection connector 2.

[0030] The specific usage and function of this embodiment: When adding grease to the outer spherical bearing body 4, the grease is injected into the grease nipple 3. The grease enters the grease filling connector 2 through the grease nipple 3. After entering the grease filling connector 2, the grease pushes the protective trigger 201 outward, causing it to move outward. This movement of the protective trigger 201 moves the protective indicator rod 202 outward. The user can judge the grease filling pressure by observing whether the grease filling indicator groove 203 is exposed. When the grease filling indicator groove 203 is exposed, the user should reduce the grease filling pressure. This facilitates the user's observation of the grease filling pressure. Once the user's grease filling pressure exceeds the threshold, At this time, the protective trigger 201 is squeezed outward, and the outward movement of the protective trigger 201 drives the second blocking trigger 208 to move outward. The second blocking trigger 208 moves outward and contacts the first blocking trigger 207. The first blocking trigger 207 is squeezed downward and no longer limits the protective blocking plug 205. At this time, the protective blocking plug 205 moves in opposite directions under the action of the protective blocking spring 206. The opposite movement of the protective blocking plug 205 achieves the sealing of the grease nipple 3, preventing the grease from continuing to be injected, thus protecting the bearing oil seal, preventing the oil seal from being deformed by high pressure, ensuring the sealing effect of the oil seal, and improving the overall performance of the bearing.

[0031] The following points should be noted in this article:

[0032] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0033] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0034] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A special bearing for a wheat straw crusher, characterized in that: The system includes a bearing mounting base (1), an oil filling connector (2), an oil filling nozzle (3), an outer spherical bearing body (4), an eccentric sleeve (5), a bearing set screw (6), a protective and impact-resistant mechanism, and an oil filling protection mechanism. The oil filling connector (2) is fixedly connected above the bearing mounting base (1). The oil filling nozzle (3) is fixedly connected above the oil filling connector (2), and the oil filling connector (2) and the oil filling nozzle (3) are internally connected. The outer spherical bearing body (4) is embedded inside the bearing mounting base (1). The eccentric sleeve (5) is sleeved on the front end of the bearing inner ring of the outer spherical bearing body (4). The bearing set screw (6) is threadedly connected to the outside of the eccentric sleeve (5). The protective and impact-resistant mechanism is located on the outside of the eccentric sleeve (5). The oil filling protection mechanism is located on the inside of the oil filling connector (2).

2. The special bearing for wheat straw crusher as described in claim 1, characterized in that: The protective and impact-resistant mechanism also includes an impact-resistant protective net (101); the impact-resistant protective net (101) is fixedly connected to the outer rear end of the eccentric sleeve (5), and the impact-resistant protective net (101) is set in front of the outer spherical bearing body (4).

3. The special bearing for wheat straw crusher as described in claim 1, characterized in that: The oil injection protection mechanism includes: a protection trigger (201); the protection trigger (201) is provided in two sets, and the upper end of the two sets of protection triggers (201) is provided with a slope structure. The two sets of protection triggers (201) are slidably connected to the front and rear sides of the inside of the oil injection connector (2).

4. The special bearing for wheat straw crusher as described in claim 3, characterized in that: The oil filling protection mechanism also includes: a protection display rod (202), an oil filling display groove (203), and a display connecting spring (204); the protection display rod (202) is provided in two sets, and the two sets of protection display rods (202) are respectively fixedly connected to the outside of the protection trigger (201), and the two sets of protection display rods (202) are respectively slidably connected to the front and rear sides of the inside of the oil filling connector (2); the oil filling display groove (203) is provided in two sets, and the two sets of oil filling display grooves (203) are both annular groove structures, and the two sets of oil filling display grooves (203) are respectively opened on the outer periphery of the protection display rod (202); the display connecting spring (204) is provided in two sets, and the two sets of display connecting springs (204) are respectively fixedly connected to the outside of the protection trigger (201), and the outside of the two sets of display connecting springs (204) are fixedly connected to the oil filling connector (2).

5. The special bearing for wheat straw crusher as described in claim 4, characterized in that: The oil filling protection mechanism also includes: a protection blocking block (205) and a protection blocking spring (206); the protection blocking block (205) is provided in two sets, and the two sets of protection blocking blocks (205) are slidably connected to the front and rear sides of the inside of the oil filling nozzle (3); the protection blocking spring (206) is provided in two sets, and the two sets of protection blocking springs (206) are fixedly connected to the front and rear ends of the oil filling nozzle (3), and the front and rear ends of the two sets of protection blocking springs (206) are fixedly connected to the protection blocking block (205) respectively.

6. The special bearing for wheat straw crusher as described in claim 5, characterized in that: The oil injection protection mechanism further includes: a first blocking trigger (207), a second blocking trigger (208), and a blocking reset spring (209); the first blocking trigger (207) is provided in two sets, and the two sets of first blocking triggers (207) are slidably connected to the front and rear sides of the upper part of the oil injection connector (2), and the upper ends of the two sets of first blocking triggers (207) are in frictional contact with the protection blocking plug (205); the second blocking trigger (208) is provided in two sets, and the two sets of second blocking triggers (208) are fixedly connected to the outside of the protection trigger (201), and the two sets of second blocking triggers (208) and the two sets of first blocking triggers (207) form a wedge structure; the blocking reset spring (209) is provided in two sets, and the two sets of blocking reset springs (209) are fixedly connected to the lower end of the first blocking trigger (207), and the lower ends of the two sets of blocking reset springs (209) are fixedly connected to the oil injection connector (2).

Images