Bearing assembly applied to supporting arm crane tower

Abstract

The utility model discloses a bearing assembly applied to a support arm crane tower, which relates to the technical field of medical crane tower accessories, and comprises a U-shaped bearing frame and a bearing main body, and further comprises an assembling unit and a positioning connecting unit which are arranged between the bearing frame and the bearing main body, the assembling unit comprises a bidirectional lead screw, a supporting batten and an assembling arc block. Two strip-shaped mounting grooves are symmetrically formed in the concave face of one side of the bearing frame. The positioning connecting unit comprises a supporting sleeve, a locking screw and a connecting flange. According to the utility model, the two supporting battens which are in threaded connection with the two-way screw rod relatively move under the action of stress, so that the two assembling arc blocks can be helped to adjust the distance in the bearing frame, and the two assembling arc blocks can simultaneously enter the two arc-shaped grooves which are symmetrically formed in the outer peripheral surface of the middle end of the bearing main body after being drawn close to each other; the bearing main body is locked and clamped on the bearing frame, so that the bearing main body is easy and convenient to disassemble, assemble and maintain by the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of accessories for medical suspension towers, and particularly relates to a bearing assembly applied to a support arm suspension tower. Background Art

[0002] Medical suspension towers are a new type of auxiliary medical equipment developed in recent years for use in hospital intensive care units (ICUs), operating rooms, and emergency rooms. They centrally solve problems such as medical gas input, power distribution, network transmission, as well as negative pressure suction and waste gas emission devices. Various instruments are placed on the trays of medical suspension towers, and the rotating arms can rotate within a certain range, facilitating operation by medical staff. However, due to the large load-bearing capacity, the rotating joints of medical suspension towers will bear extremely large offset loads during operation. The existing rotating joints adopt a structure of two planar thrust needle bearings, which can meet the strength requirements for load-bearing. However, since the planar thrust needle bearings have no restriction in the radial direction, errors are likely to occur during installation, and problems such as uneven force and instability will also occur during the rotation process.

[0003] The publication (announcement) number is CN202023840U, which discloses a bearing assembly applied to a cantilever suspension tower, including a locking sleeve, a bearing seat, an upper flange, a lower flange, a locking nut, a first tapered thrust bearing, and a second tapered thrust bearing; the first tapered thrust bearing and the second tapered thrust bearing are parallel and relatively sleeved on the locking sleeve, the bearing seat is sleeved outside the locking sleeve and clamps the first tapered thrust bearing and the second tapered thrust bearing; the locking nut connects the locking sleeve and locks the first tapered thrust bearing and the second tapered thrust bearing between the bearing seat and the locking sleeve; the upper flange and the lower flange clamp the bearing seat and the locking sleeve from the upper and lower sides, and lock the bearing seat and the locking sleeve between the upper and lower flanges through fasteners. The utility model adopts two tapered thrust bearings, with high coaxiality, good stability, uniform force, no left-right movement during the rotation of the rotating arm, more flexible, stable, and reliable movement of the joint, more convenient operation for medical staff, saving time and physical strength.

[0004] Although the above scheme improves the bearing structure to make its operation more stable, the upper flange and the lower flange respectively require a large number of two groups of bolts to be assembled onto the bearing to cooperate with the assembly of the bearing and other components. The disassembly, assembly, maintenance, and repair of the bearing assembly are laborious and cumbersome. Therefore, we propose a bearing assembly applied to a support arm suspension tower. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a bearing assembly applied to a support arm suspension tower, which solves the problem of laborious and cumbersome disassembly, assembly, maintenance, and repair of the bearing assembly through the provided assembly unit and positioning connection unit.

[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions: A bearing assembly applied to a support arm tower crane, comprising a "U"-shaped bearing frame and a bearing body, further comprising: an assembly unit and a positioning and connecting unit arranged between the bearing frame and the bearing body;

[0007] The assembly unit includes a bidirectional screw rod, a support strip plate, and an assembly arc block. Two strip-shaped installation grooves are symmetrically formed on the concave surface of one side of the bearing frame. The bidirectional screw rod is movably arranged in one of the strip-shaped installation grooves. There are four support strip plates in total, which are equally divided into two groups. The support strip plates are in a "T" shape and are located on the strip-shaped installation grooves. Two of the support strip plates respectively cooperate with the symmetrically arranged positive and negative threaded sections on the bidirectional screw rod. Two arc-shaped grooves are symmetrically formed on the outer peripheral surface of the middle end of the bearing body. One assembly arc block is fixedly arranged at the end faces of every two support strip plates located on the same vertical central horizontal plane, and the assembly arc block extends into the arc-shaped groove movably. One end of the bidirectional screw rod extending out of the bearing frame is fixedly provided with a turntable;

[0008] The positioning and connecting unit includes a support sleeve, a locking screw rod, and a connecting flange. A group of threaded holes are respectively formed on the opposite two side surfaces of the bearing frame. The two support sleeves are respectively placed at both ends of the bearing body, and two locking concave holes are symmetrically formed on the outer peripheral surface of the support sleeve. The locking screw rod is assembled on the threaded hole and extends into the locking concave hole correspondingly. The two connecting flanges are respectively fixedly arranged at the end faces of the two support sleeves and are located outside the bearing frame.

[0009] Preferably, the assembly unit further includes a guide rod, and the guide rod is fixedly arranged in the other strip-shaped installation groove and movably penetrates through the other two support strip plates.

[0010] Preferably, the support strip plate and the bidirectional screw rod are arranged perpendicular to each other.

[0011] Preferably, the locking screw rod and the bidirectional screw rod are arranged parallel to each other.

[0012] Preferably, a group of installation holes are formed on each connecting flange.

[0013] Preferably, several installation holes on the same connecting flange are distributed in an equidistant circumferential array.

[0014] Compared with the prior art, the bearing assembly applied to the support arm tower crane of the present utility model has the following beneficial effects:

[0015] 1. In the present utility model, by providing an assembly unit, the bearing body can be placed inside the "U"-shaped carrier. By holding the turntable, the bidirectional screw rod can be rotated forward and backward on the carrier. The relative movement of two of the support strip plates threadedly connected to the bidirectional screw rod under the action of force can help adjust the distance between the two assembled arc blocks inside the carrier. The other two support strip plates can slide and translate on the guide rod to cooperate with the movement of the assembled arc blocks and provide auxiliary support for them. After the two assembled arc blocks approach each other, they can simultaneously enter two arc-shaped grooves symmetrically formed on the outer peripheral surface of the middle end of the bearing body, and the bearing body is then locked and clamped to the carrier. After reversing the operation to move the assembled arc blocks apart, the bearing body can be removed from the carrier and the positioning and connecting unit. The disassembly, assembly, maintenance of the bearing body by the device are labor-saving and simple.

[0016] 2. In the present utility model, by providing a positioning and connecting unit, after the two support sleeves are respectively placed at both ends of the bearing body, by rotating and assembling the locking screws on two groups of threaded holes on the opposite side surfaces of the carrier, the two locking screws can be respectively inserted into two locking concave holes symmetrically formed on the outer peripheral surface of the support sleeve after rotating and advancing. The support sleeve is then tightly pressed and fixed to the carrier and is located at the end of the bearing body to cooperate with the external shaft body to be assembled with the bearing body through the connecting flange. After removing the locking screws, the connecting flange can be removed from the carrier and the bearing body. The disassembly and assembly of the connecting flange on the bearing body by the device are simple and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of a bearing assembly applied to a support arm tower crane of the present utility model;

[0019] Figure 2 It is a schematic top view structure diagram of a bearing assembly applied to a support arm tower crane of the present utility model;

[0020] Figure 3 For the present utility model Figure 2 It is a schematic cross-sectional view taken along line A-A in the present utility model;

[0021] Figure 4 For the present utility model Figure 2 It is a schematic cross-sectional view taken along line B-B in the present utility model;

[0022] Figure 5 For the present utility model Figure 3 It is a schematic cross-sectional view taken along line C-C in the present utility model.

[0023] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Bearing frame;

[0025] 2. Assembly unit; 201. Bi-directional lead screw; 202. Support strip plate; 203. Assembly arc block; 204. Guide rod;

[0026] 3. Positioning connection unit; 301. Support sleeve; 302. Locking screw; 303. Locking concave hole; 304. Connection flange;

[0027] 4. Bearing body;

[0028] 5. Mounting hole. Detailed implementation manners

[0029] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Embodiment

[0032] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, a bearing assembly applied to a support arm tower crane includes a bearing frame 1 in a "U" shape and a bearing body 4, and further includes: an assembly unit 2 and a positioning connection unit 3 arranged between the bearing frame 1 and the bearing body 4;

[0033] The assembly unit 2 includes a bidirectional lead screw 201, a support strip plate 202, and an assembly arc block 203. Two strip-shaped installation grooves are symmetrically formed on the concave surface of one side of the bearing frame 1. The bidirectional lead screw 201 is movably arranged in one of the strip-shaped installation grooves. There are four support strip plates 202 in total, which are equally divided into two groups. The support strip plate 202 is in a "T" shape and is located on the strip-shaped installation groove. Two of the support strip plates 202 respectively cooperate with the positive and negative threaded sections symmetrically arranged on the bidirectional lead screw 201. Two arc-shaped grooves are symmetrically formed on the outer peripheral surface of the middle end of the bearing body 4. One assembly arc block 203 is fixedly arranged at the end faces of every two support strip plates 202 located on the same vertical central horizontal plane, and the assembly arc block 203 movably extends into the arc-shaped groove;

[0034] The positioning and connecting unit 3 includes a support sleeve 301, a locking screw 303, and a connecting flange 304. A set of threaded holes are respectively formed on the opposite side surfaces of the bearing frame 1. The two support sleeves 301 are respectively placed at both ends of the bearing body 4, and two locking concave holes 302 are symmetrically formed on the outer peripheral surface of the support sleeve 301. The locking screw 303 is assembled on the threaded hole and movably extends into the locking concave hole 302 one by one. The two connecting flanges 304 are respectively fixedly arranged at the end faces of the two support sleeves 301 and are located outside the bearing frame 1.

[0035] Furthermore, the assembly unit 2 further includes a guide rod 204. The guide rod 204 is fixedly arranged in the other strip-shaped installation groove and movably penetrates through the other two support strip plates 202.

[0036] Furthermore, the support strip plate 202 and the bidirectional lead screw 201 are arranged perpendicular to each other.

[0037] Furthermore, the locking screw 303 and the bidirectional lead screw 201 are arranged parallel to each other.

[0038] The assembly unit 2 makes the disassembly, assembly, maintenance of the bearing body 4 by the device labor-saving and simple. Embodiment

[0039] As Figure 1 、 Figure 2 、 Figure 3 And Figure 4 shown, a bearing assembly applied to a support arm tower crane includes a bearing frame 1 in a "U" shape and a bearing body 4, and further includes: an assembly unit 2 and a positioning and connecting unit 3 arranged between the bearing frame 1 and the bearing body 4;

[0040] The assembly unit 2 includes a bidirectional lead screw 201, a support strip plate 202 and an assembly arc block 203. Two strip-shaped installation grooves are symmetrically formed on the concave surface of one side of the carrier 1. The bidirectional lead screw 201 is movably arranged in one of the strip-shaped installation grooves. There are four support strip plates 202 in total and they are equally divided into two groups. The support strip plate 202 is in a "T" shape and is located on the strip-shaped installation groove. Two of the support strip plates 202 respectively cooperate with the positive and negative threaded sections symmetrically arranged on the bidirectional lead screw 201. Two arc-shaped grooves are symmetrically formed on the outer peripheral surface of the middle end of the bearing body 4. One assembly arc block 203 is fixedly arranged corresponding to the end faces of every two support strip plates 202 located on the same vertical central horizontal plane, and the assembly arc block 203 extends into the arc-shaped groove movably;

[0041] The positioning and connecting unit 3 includes a support sleeve 301, a locking screw 303 and a connecting flange 304. A group of threaded holes are respectively formed on the opposite two side surfaces of the carrier 1. The two support sleeves 301 are respectively placed at both ends of the bearing body 4, and two locking concave holes 302 are symmetrically formed on the outer peripheral surface of the support sleeve 301. The locking screw 303 is assembled on the threaded hole and extends into the locking concave hole 302 correspondingly. The two connecting flanges 304 are respectively fixedly arranged on the end faces of the two support sleeves 301 and are located outside the carrier 1.

[0042] Furthermore, a group of mounting holes 5 are formed on each connecting flange 304.

[0043] Furthermore, several mounting holes 5 on the same connecting flange 304 are distributed in an equidistant circumferential array.

[0044] The positioning and connecting unit 3 makes the disassembly and assembly of the connecting flange 304 on the bearing body 4 simple, convenient and flexible for the device.

[0045] The working principle of the present utility model is as follows:

[0046] The bearing body 4 is placed inside the bearing frame 1. Hold the turntable to control the bidirectional lead screw 201 to rotate forward and backward on the bearing frame 1. Two of the support strip plates 202 threadedly connected to the bidirectional lead screw 201 move relative to each other under the action of force to help the two assembled arc blocks 203 adjust the spacing inside the bearing frame 1. The other two support strip plates 202 slide and translate on the guide rod 204 to cooperate with the movement of the assembled arc blocks 203. After the two assembled arc blocks 203 approach each other, they simultaneously enter two arc-shaped grooves symmetrically formed on the outer circumference of the middle end of the bearing body 4, and the bearing body 4 is then locked and clamped to the bearing frame 1. After reversing the operation to move the assembled arc blocks 203 apart, the bearing body 4 can be removed from the bearing frame 1 and the positioning connection unit 3. Rotate and assemble the locking screws 303 on two sets of threaded holes on the opposite sides of the bearing frame 1. After the two locking screws 303 rotate and advance, they are respectively inserted into two locking concave holes 302 symmetrically formed on the outer circumference of the support sleeve 301. The support sleeve 301 is then tightly fixed to the bearing frame 1 and is positioned at the end of the bearing body 4 to cooperate with an external shaft body to be assembled with the bearing body 4 through the connecting flange 304. After removing the locking screws 303, the connecting flange 304 can be removed from the bearing frame 1 and the bearing body 4.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing assembly applied to a support arm tower crane, comprising a carrier (1) in a "U" shape and a bearing body (4), characterized in that, Also includes: An assembly unit (2) and a positioning connection unit (3) arranged between the carrier frame (1) and the bearing body (4); The assembly unit (2) comprises a bidirectional screw (201), a support strip (202) and a connecting arc block (203); two strip-shaped installation grooves are symmetrically provided on a concave surface on one side of the support frame (1); the bidirectional screw (201) is movably provided on one of the strip-shaped installation grooves; a total of four support strips (202) are provided and are equally divided into two groups; the support strips (202) are in a "T" shape and are located on the strip-shaped installation grooves; two support strips (202) respectively correspond to the positive and negative sections of threads symmetrically provided on the bidirectional screw (201); two arc grooves are symmetrically provided on the outer peripheral surface of the middle end of the bearing body (4); a connecting arc block (203) is fixedly provided on the end surfaces of each of the two support strips (202) located on the same vertical center horizontal plane; and the connecting arc block (203) movably extends into the arc groove; The positioning connection unit (3) comprises a supporting sleeve (301), a locking screw (303) and a connecting flange (304); a group of threaded holes are respectively provided on the surfaces of the two opposite sides of the support frame (1); the two supporting sleeves (301) are respectively placed at the two ends of the bearing body (4); and two locking recessed holes (302) are symmetrically provided on the outer peripheral surface of the supporting sleeve (301); the locking screw (303) is assembled on the threaded holes and movably extends into the locking recessed holes (302) in a one-to-one correspondence; and the two connecting flanges (304) are respectively fixedly arranged on the end surfaces of the two supporting sleeves (301) and are located on the outer side of the support frame (1).

2. A bearing assembly for a support arm tower according to claim 1, characterized in that: The assembly unit (2) further comprises a guide rod (204), wherein the guide rod (204) is fixedly arranged on another strip-shaped installation groove and movably passes through the other two supporting strip plates (202).

3. The bearing assembly for use in a support arm tower according to claim 1, characterized in that: The supporting strip plate (202) and the bidirectional screw rod (201) are arranged perpendicular to each other.

4. The bearing assembly for use in a support arm tower according to claim 1, characterized in that: The locking screw (303) and the bidirectional screw (201) are arranged parallel to each other.

5. The bearing assembly for use in a support arm tower according to claim 1, characterized in that: A group of mounting holes (5) is formed on each of the connecting flanges (304).

6. A bearing assembly for a support arm tower according to claim 5, characterized in that: The plurality of mounting holes (5) located on the same connecting flange (304) are distributed in an equidistant circular array.

Images