Crane travelling wheel set capable of running stably

Abstract

The utility model relates to the technical field of crane travelling wheels, in particular to a crane travelling wheel set stable in operation, which comprises a first travelling wheel body, a second travelling wheel body, a bearing box and a supporting seat, a first mounting part is horizontally arranged at the top end of the bearing box, and a second mounting part is horizontally arranged on one side of the bearing box. A transverse connecting section and a vertical connecting section are symmetrically arranged on the two sides of the front end and the rear end of the supporting frame, a first sliding block is arranged on the top face of the first mounting part, a sliding groove is formed in the bottom end of the transverse connecting section, a limiting block is arranged on the side wall of the second mounting part, and a containing groove is formed in the side wall of the vertical connecting section. According to the crane wheel supporting frame, the installation between the crane wheel and the supporting frame is firmer, and a crane can stably and safely run for a long time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of crane travelling wheel, specifically is stable operation crane travelling wheel group. BACKGROUND

[0002] The crane is hoisting machinery for vertically lifting and horizontally carrying heavy objects in a certain range, which runs on the track through the travelling wheel group, and the travelling wheel group needs to support the crane and the load, and the travelling wheel group is composed of a support seat, a bearing box and a plurality of travelling wheels, and the support seat is fixedly connected with the bottom disc of the crane through the top, so that the travelling wheels and the support seat are firmly and stably connected, which is the key to ensure the safe and stable operation of the crane. SUMMARY

[0003] The utility model solves the technical problem in the above, provides a kind of stable operation crane travelling wheel group to solve the problem presented in the above background art.

[0004] The utility model discloses a stable operation crane travelling wheel group, which comprises a first travelling wheel body, a second travelling wheel body arranged at intervals on one side of the first travelling wheel body, a bearing box arranged at the two ends of the first travelling wheel body and the second travelling wheel body, and a support seat arranged between the first travelling wheel body and the second travelling wheel body, wherein the top end of the bearing box is horizontally arranged with a first mounting portion, the bottom end of the bearing box near the support seat is horizontally arranged with a second mounting portion, the first mounting portion and the second mounting portion are perpendicular to each other, the front and rear ends of the support frame are symmetrically provided with a horizontal connecting section and a vertical connecting section perpendicular to each other, the top surface of the first mounting portion is provided with a first sliding block, the bottom end of the horizontal connecting section is provided with a sliding groove matched with the first sliding block, the side wall of the second mounting portion is provided with a limiting block, the side wall of the vertical connecting section is provided with a containing groove matched with the limiting block, the horizontal connecting section and the vertical connecting section are provided with a guide cylinder, the guide cylinder is provided with a fastening bolt penetrating through the guide cylinder, the horizontal connecting section, the vertical connecting section and the first mounting portion and the second mounting portion, and the side of the guide cylinder is provided with a bolt stop device for limiting the rotation of the fastening bolt.

[0005] Further, the top end of the first mounting portion abuts against the bottom end of the horizontal connecting section, and the side wall of the second mounting portion abuts against the side wall of the vertical connecting section.

[0006] Further, the bolt stop device comprises a connecting cylinder, first through holes, a stand, second through holes, a top rod, a sliding block, a spring, a limiting plate and a rotating block, the connecting cylinder is arranged on one side of the guide cylinder, the first through holes are symmetrically arranged on the two sides of the connecting cylinder, the stand is arranged inside the guide cylinder, the top end of the stand extends to the top of the connecting cylinder, the second through holes are arranged inside the stand and are on the same central axis as the first through holes and are in communication with each other, the top rod is symmetrically arranged inside the second through holes, the sliding block is sleeved on the top rod and is in sliding connection with the inner wall of the second through hole, the spring is sleeved between the two top rods and is in abutment with the side wall of the sliding block, under the action of the spring force, the top end penetrates through the second through hole and enters the first through hole, the bottom end of one side of the limiting plate is fixedly connected with the top end of the stand, the rotating block is rotatably arranged on the bottom end of the limiting plate close to one side of the fastening bolt, the bottom end of the rotating block is provided with a groove matched with the head of the fastening bolt, and the top end of the head of the fastening bolt extends into the groove.

[0007] Further, the stand is detachably provided with a baffle on the two sides and the baffle forms a block to the second through hole, the baffle is provided with a through hole matched with the top rod, the through hole is on the same central axis as the second through hole, and the inner diameter of the through hole is smaller than that of the second through hole.

[0008] The crane wheel body is effectively limited when the crane wheel is subjected to external force in the up-down and front-back directions, the connection of the fastening bolt is more firm and stable, the bolt stop device limits the axial movement of the bolt along the guide cylinder, so that the bolt cannot be loosened and rotated due to vibration load and other external forces, the connection of the fastening bolt is more firm and stable, the installation between the crane wheel and the support frame is more firm, and the crane can be stably and safely operated for a long time.

[0009] The first installation part and the horizontal connecting section are matched, the first sliding block enters the inner wall of the sliding groove and is limited in movement forward and backward, the second installation part is matched with the horizontal connecting section, the limiting block enters the inside of the containing groove and is limited in movement forward, backward, upward and downward, the crane wheel can be effectively limited when the crane wheel is subjected to external force in the up-down and front-back directions, the connection of the fastening bolt is more firm and stable, the bolt stop device limits the axial movement of the bolt along the guide cylinder, so that the bolt cannot be loosened and rotated due to vibration load and other external forces, the connection of the fastening bolt is more firm and stable, the installation between the crane wheel and the support frame is more firm, and the crane can be stably and safely operated for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0010] The foregoing and other objects, features and advantages of the present application will become apparent from the following detailed description of the application when considered in conjunction with the accompanying drawings.

[0011] Figure 1 It is a front view of the utility model.

[0012] Figure 2The utility model discloses a connecting cylinder sectional view.

[0013] Figure 3 The utility model discloses a limiting plate bottom view.

[0014] Figure 4 The utility model discloses a chute and the side view of first sliding block.

[0015] Wherein: 1, first trolley wheel body;2, second trolley wheel body;3, bearing box;4, support seat;501, installation portion;502, second installation portion;601, horizontal connecting section;602, vertical connecting section;701, first sliding block;702, chute;801, limiting block;802, accommodating groove;9, guide cylinder;10, fastening bolt;1101, connecting cylinder;1102, first through -hole;1103, stand;1104, second through -hole;1105, top rod;1106, second sliding block;1107, spring;1108, limiting plate;1109, rotating block;1110, recess;12, baffle;13, through hole. DETAILED DESCRIPTION

[0016] The utility model makes further explanation below combining with the drawing.

[0017] Refer to Figures 1-4As shown, the stable running crane trolley wheel set comprises a first trolley wheel body 1, a second trolley wheel body 2 arranged at one side of the first trolley wheel body 1 at intervals, a bearing box 3 arranged at both ends of the first trolley wheel body 1 and the second trolley wheel body 2, and a support seat 4 arranged between the first trolley wheel body 1 and the second trolley wheel body 2, the top of the support seat 4 is fixedly connected with a crane chassis, the top end of the bearing box 3 is horizontally arranged with a first mounting portion 501, the bottom end of the bearing box 3 close to the side of the support seat 4 is horizontally arranged with a second mounting portion 502, the first mounting portion 501 and the second mounting portion 502 are perpendicular to each other, the front and rear ends of the support frame 4 are symmetrically arranged with a horizontal connecting section 601 and a vertical connecting section 602 which are perpendicular to each other, the horizontal connecting section 601 and the vertical connecting section 602 are connected to each other in a right angle structure, the top surface of the first mounting portion 501 is provided with a first sliding block 701, the bottom end of the horizontal connecting section 601 is provided with a sliding groove 702 matched with the first sliding block 701, the side wall of the second mounting portion 502 is provided with a limiting block 801, and the side wall of the vertical connecting section 602 is provided with a containing groove 802 matched with the limiting block 801, when the trolley wheel body and the support seat 4 are installed and fixed, the first sliding block 701 enters the inside of the sliding groove 702 of the horizontal connecting section 601, the movement of the first sliding block 701 in the front and rear directions on the horizontal connecting section 601 is limited, and as the first sliding block 701 slides along the sliding groove 702, the second mounting portion 502 cooperates with the horizontal connecting section 602, the limiting block 801 enters the inside of the containing groove 802, and the movement of the limiting block 801 in the front and rear directions and in the up and down directions is limited, so that when the trolley wheel appears force in the up and down directions and the front and rear directions due to external force, the trolley wheel can be effectively limited, the cooperation is more firm and stable, the fastening bolt 10 is not easy to be subjected to shearing force, and the connection is more firm and stable.

[0018] The horizontal connecting section 601 and the vertical connecting section are provided with a guide cylinder 9, the guide cylinder is provided with a fastening bolt 10 penetrating the guide cylinder, the horizontal connecting section, the vertical connecting section 602 and the first mounting portion 501 and the second mounting portion 502, a bolt stop device is arranged at one side of the guide cylinder 9 to limit the rotation of the fastening bolt 10, so as to limit the movement of the bolt in the axial direction of the guide cylinder, so that the bolt will not be loose and rotated due to vibration load and other external forces, the connection of the fastening bolt is more firm and stable, the installation between the trolley wheel and the support frame is more firm, and the crane can be stably and safely operated for a long time.

[0019] Preferably, the top end of the first mounting portion 501 abuts against the bottom end of the horizontal connecting section 601, and the side wall of the second mounting portion 502 abuts against the side wall of the vertical connecting section 602.

[0020] Preferably, the bolt stopping device comprises a connecting cylinder 1101, a first through hole 1102, a stand column 1103, a second through hole 1104, a top rod 1105, a second sliding block 1106, a spring 1107, a limiting plate 1108, and a rotating block 1109. The connecting cylinder 1101 is arranged at one side of the guide cylinder 9. The first through holes 1102 are symmetrically arranged at two sides of the connecting cylinder 1101. The stand column 1103 is arranged inside the guide cylinder 9. The top end of the stand column 1103 extends to the top of the connecting cylinder 1101. The second through hole 1104 is arranged inside the stand column 1103 and is on the same central axis as the first through hole 1102 and communicates with the first through hole 1102. The top rods 1105 are symmetrically arranged inside the second through hole 1104. The second sliding block 1106 is sleeved on the top rod 1105 and is in sliding connection with the inner wall of the second through hole 1104. The spring 1107 is sleeved between the two top rods 1105 and is in abutment with the side wall of the second sliding block 1106. Under the action of the force of the spring 1107, one end of the top rod 1105 penetrates through the second through hole 1104 and enters the first through hole 1102. The bottom end of one side of the limiting plate 1108 is fixedly connected with the top end of the stand column 1103. The rotating block 1109 is rotatably arranged at the bottom end of one side of the limiting plate 1108 close to the fastening bolt 10. A groove 1110 matched with the screw head of the fastening bolt 10 is arranged at the bottom end of the rotating block 1109. The top end of the screw head of the fastening bolt 10 extends into the groove 1110. After the fastening bolt 10 is connected, the top rods 1105 at two sides of the stand column 1103 are pressed to enter the second through hole 1104 and extrude the spring 1107 to cause elastic deformation, and the stand column 1103 is placed into the connecting cylinder 1101. The rotating block 1109 at one side of the limiting plate 1108 corresponds to the fastening bolt 10. The stand column 1103 moves downward along the inner wall of the connecting cylinder 1101, and the top rod 1105 is always compressed in the second through hole 1104 and limited by the inner wall of the connecting cylinder 1101. Until the top rod 1104 corresponds to the first through hole 1102, the extrusion force of the top rod 1105 disappears, the spring 1107 resets and rebounds to drive the top rods 1105 at two sides to enter the first through hole 1102. The spring 1107 always applies a pushing force to make the top rod 1105 engage with the first through hole 1102, so that the stand column 1103 is locked with the connecting cylinder 1101. Meanwhile, the screw head of the fastening bolt 10 enters the groove 1110 of the rotating block 1109 to limit the circumferential movement of the fastening bolt 9 and prevent it from loosening. The rotating block 1109 can be rotated to an angle at which the groove 1110 matches the screw head of the regular hexagonal shape.

[0021] Preferably, the stand 1103 is detachably provided with a baffle plate 12 on both sides to form a block to the second through hole 1104, the baffle plate 12 is provided with a through hole 13 matched with the top rod 1105, the through hole 13 is on the same central axis as the second through hole 1104, the inner diameter of the through hole 13 is smaller than the inner diameter of the second through hole 1104, the baffle plate 12 can stabilize the second sliding block 1106 to slide inside the second through hole 1104 and cannot move out of the second through hole 1104, the top rod 1105 penetrates into the first through hole 1102 under the action of the spring force, and the baffle plate 12 is flush with the side wall of the stand 1103.

[0022] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification or equivalent change made according to the technical essence of the present application to the above embodiment falls within the protection scope of the present application.

Claims

1. A stable and reliable crane trolley wheel set, comprising a first trolley wheel body (1), a second trolley wheel body (2) arranged at intervals on one side of the first trolley wheel body (1), a bearing box (3) arranged at both ends of the first trolley wheel body (1) and the second trolley wheel body (2), and a support seat (4) arranged between the first trolley wheel body (1) and the second trolley wheel body (2), characterized in that: The bearing box (3) top end horizontal arrangement has first installation part (501), the bearing box (3) is close to the bottom end horizontal arrangement of second installation part (502) in support seat (4) one side, first installation part (501) and second installation part (502) are perpendicular to each other, the both sides symmetry of support seat (4) front and rear two ends are provided with mutually perpendicular horizontal connecting section (601) and vertical connecting section (602), the top surface of first installation part (501) is provided with first sliding block (701), the bottom end of horizontal connecting section (601) is provided with sliding slot (702) matched with first sliding block (701), the side wall of second installation part (502) is provided with limiting block (801), the side wall of vertical connecting section (602) is provided with accommodating groove (802) matched with limiting block (801), the horizontal connecting section (601), vertical connecting section are provided with guide cylinder (9), the guide cylinder is provided with fastening bolt (10) that penetrates the guide cylinder, horizontal connecting section, vertical connecting section (602) and first installation part (501), second installation part (502) fixed connection, the guide cylinder (9) one side is provided with bolt stop device that limits fastening bolt (10) appears rotation.

2. A stable running crane trolley wheelset according to claim 1, characterized in that: The top end of first installation part (501) is in contact with the bottom end of horizontal connecting section (601), and the side wall of second installation part (502) is in contact with the side wall of vertical connecting section (602).

3. A stable running crane trolley wheel set according to claim 1, characterized in that: The bolt stopping device comprises a connecting cylinder (1101), a first through hole (1102), a stand column (1103), a second through hole (1104), a top rod (1105), a second sliding block (1106), a spring (1107), a limiting plate (1108), and a rotating block (1109), the connecting cylinder (1101) is arranged on one side of the guide cylinder (9), the first through holes (1102) are symmetrically arranged on the two sides of the connecting cylinder (1101), the stand column (1103) is arranged inside the guide cylinder (9), the top end of the stand column (1103) extends to the top of the connecting cylinder (1101), the second through hole (1104) is arranged inside the stand column (1103) and is on the same central axis as the first through hole (1102) and is in communication with the first through hole (1102), the top rods (1105) are symmetrically arranged inside the second through hole (1104), the second sliding block (1106) is sleeved on the top rod (1105), and the second sliding block (1106) is in sliding connection with the inner wall of the second through hole (1104), the spring (1107) is sleeved between the two top rods (1105) and abuts against the side wall of the second sliding block (1106), under the action of the force of the spring (1107), one end of the top rod (1105) penetrates through the second through hole (1104) and enters the inside of the first through hole (1102), the bottom end of one side of the limiting plate (1108) is fixedly connected with the top end of the stand column (1103), the rotating block (1109) is rotatably arranged at the bottom end of the limiting plate (1108) on the side close to the fastening bolt (10), the bottom end of the rotating block (1109) is provided with a groove (1110) matched with the screw head of the fastening bolt (10), and the top end of the screw head of the fastening bolt (10) extends into the groove (1110).

4. A stable running spreader wheel set according to claim 3, characterized in that: The stand column (1103) is detachably provided with a baffle (12) on the two sides, the baffle (12) is provided with a through hole (13) matched with the top rod (1105), the through hole (13) is on the same central axis as the second through hole (1104), and the inner diameter of the through hole (13) is smaller than the inner diameter of the second through hole (1104).

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