Handheld step roller installation tool for escalators

Abstract

The present invention discloses a hand-held step roller installation tool for an escalator, which is used for coaxially assembling a roller onto a roller shaft; the roller installation tool comprises an arched body; the arched body comprises a horizontal extension section, a first vertical section arranged at one end of the horizontal extension section, and a second vertical section arranged at the other end of the horizontal extension section; a pressure head is movably arranged between the first vertical section and the second vertical section; a driving mechanism for driving the pressure head to approach or move away from the second vertical section is arranged on the first vertical section; the pressure head is provided with an avoidance groove on the side close to the second vertical section; the second vertical section is provided with a positioning groove on the side close to the pressure head corresponding to the avoidance groove. The present invention is small in size and easy to carry; the force is evenly and stably applied when the roller is installed, and the assembly quality of the roller is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of installation tools, in particular to a handheld step roller installation tool for an escalator. Background Art

[0002] The escalator includes a plurality of steps connected end to end, which are driven by a transmission mechanism to move on a guide rail to achieve transportation. An axle seat is installed on the steps, and the axle seat is used to connect the main shaft, and the main shaft is equipped with rollers.

[0003] After long-term use, the roller surface is severely worn and needs to be disassembled and replaced. When replacing on site, the roller is disassembled by tools such as a three-jaw puller. However, when installing the roller, the roller is often put on the spindle, and then the roller is hit with a copper rod to force the roller to move to the predetermined position on the spindle. During the above installation process, the roller is easily deformed by the knock, and the roller is unevenly stressed, resulting in poor results after assembly, which affects the service life of the roller. Summary of the invention

[0004] In view of the above-mentioned technical problems, the purpose of the present invention is to propose a handheld step roller installation tool for escalator, which is small in size and easy to carry. The force applied to the roller is even and stable during installation, effectively improving the assembly quality of the roller.

[0005] The technical solution of the present invention is achieved as follows: a handheld step roller installation tool for an escalator, used for coaxially assembling the roller onto the roller shaft; the roller installation tool includes a bow-shaped body; the bow-shaped body includes a horizontal extension section, a first vertical section arranged at one end of the horizontal extension section and a second vertical section arranged at the other end of the horizontal extension section; a pressure head is movably arranged between the first vertical section and the second vertical section; a driving mechanism for driving the pressure head to approach or move away from the second vertical section is provided on the first vertical section; the pressure head is provided with an avoidance groove on the side close to the second vertical section; the second vertical section is provided with a positioning groove on the side close to the pressure head corresponding to the avoidance groove.

[0006] Furthermore, the driving mechanism is a hydraulic cylinder; the cylinder body of the hydraulic cylinder is fixed on the first vertical section; and the piston rod of the hydraulic cylinder is fixedly connected to the pressure head.

[0007] Furthermore, a hand-held portion is provided on the cylinder body of the hydraulic cylinder.

[0008] Furthermore, the handheld part is a rod-shaped structure; and an anti-slip rubber sleeve is provided on the rod-shaped structure.

[0009] Furthermore, a scale is provided on the horizontal extension section; the scale is extended along the moving direction of the pressure head; a pointer is provided on the pressure head; one end of the pointer points to the scale.

[0010] Furthermore, the first vertical section, the second vertical section and the horizontal extension section are integrally formed.

[0011] Due to the application of the above technical scheme, the present invention has the following advantages compared with the prior art: the present invention is small in size and easy to carry, and through the coordinated use of the pressure head and the bow-shaped body, the roller and the roller shaft are stably installed, the force on the roller is evenly and stably applied during installation, and the roller is not easily deformed during installation, thereby effectively improving the assembly quality of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the main view structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the main view structure of the present invention during assembly;

[0015] Figure 3 It is a schematic diagram of the front view structure of the bow-shaped body of the present invention;

[0016] Among them: 1. bow-shaped body; 11. horizontal extension section; 12. first vertical section; 13. second vertical section; 131. positioning groove; 2. pressure head; 21. avoidance groove; 3. driving mechanism; 4. hand-held part; 5. scale; 51. pointer; 6. roller; 7. roller shaft. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0018] like Figure 1-2 The figure shows a hand-held step roller installation tool for an escalator according to the present invention, which is used to coaxially assemble the roller 6 onto the roller shaft 7. The roller 6 is a conventional component in the prior art, and the installation tool comprises an arched body 1, which comprises a horizontal extension section 11, a first vertical section 12 installed at one end of the horizontal extension section 11, and a second vertical section 13 installed at the other end of the horizontal extension section 11. The first vertical section 12, the second vertical section 13 and the horizontal extension section 11 are integrally formed (such as Figure 3As shown). A pressure head 2 is movably installed between the first vertical section 12 and the second vertical section 13. The pressure head 2 is located above the horizontal extension section 11. The pressure head 2 is made of metal material, and can be made of a copper block or an iron block. A driving mechanism 3 for driving the pressure head 2 to approach or move away from the second vertical section 13 is installed on the first vertical section 12. In this embodiment, the maximum stroke of the driving mechanism 3 driving the pressure head 2 is 50 mm. The pressure head 2 is processed with an avoidance groove 21 on the side close to the second vertical section 13. The diameter of the avoidance groove 21 is larger than the shaft diameter of one end of the roller shaft 7, and the depth of the avoidance groove 21 is set according to actual needs. The second vertical section 13 is processed with a positioning groove 131 on the side close to the pressure head 2 corresponding to the avoidance groove 21. Through the above-mentioned structural design, one end of the roller shaft 7 is sleeved with a roller 6, and the other end abuts against the positioning groove 131. The wheel surface of the roller 6 contacts the upper surface of the horizontal extension section 11. The driving mechanism 3 pushes the pressure head 2 to move, approach and press the roller 6, and force the roller 6 to move to the predetermined position of the roller shaft 7. When the pressure head 2 moves, the end of the roller shaft 7 enters the avoidance groove 21 to prevent the end of the roller shaft 7 from contacting the pressure head 2 and causing the pressure head 2 to be unable to move, thereby preventing the roller 6 from being unable to move to the predetermined position.

[0019] The above-mentioned driving mechanism is preferably a hydraulic cylinder, and the cylinder body of the hydraulic cylinder is fixed to the first vertical section 12 by bolts. The piston rod of the hydraulic cylinder is fixedly connected to the pressure head 2. The oil hole on the hydraulic cylinder is connected to the external hydraulic station through an oil pipe. The extension and retraction action of the hydraulic cylinder is controlled by the hydraulic station. In order to facilitate the operator to hold the tool, a hand-held part 4 is installed on the cylinder body of the hydraulic cylinder. The hand-held part 4 is a rod-shaped structure, and an anti-slip rubber sleeve is set on the rod-shaped structure.

[0020] In order to facilitate the operator to observe whether the roller 6 is assembled to the predetermined position, a scale 5 is installed on the horizontal extension section 11. The scale 5 can be installed on the side or upper surface of the horizontal extension section 11, and the scale 5 is extended along the moving direction of the pressure head 2. A pointer 51 is installed on the pressure head 2, and one end of the pointer 51 points to the scale 5. When the roller 6 is assembled to the predetermined position on the roller shaft 7, the pointer 51 points to the predetermined scale position on the scale 5.

[0021] When in use, first put the roller 6 onto one end of the roller shaft 7, then the other end of the roller 6 is abutted against the positioning groove 131, the wheel surface of the roller 6 contacts the surface of the horizontal extension section 11, and the roller shaft 7 is in a horizontal state, and the end face of one end thereof is aligned with the pressure head 2. Start the hydraulic station to control the action of the hydraulic cylinder. The piston rod of the hydraulic cylinder pushes the pressure head 2 to move in the direction close to the roller 6, approaches and presses the roller 6, and forces the roller 6 to move on the roller shaft 7. During the movement of the pressure head 2, the end of the roller shaft 7 close to the pressure head 2 enters the avoidance groove 21, and the pressure head 2 continues to move and pushes the roller 6 to the predetermined position on the roller shaft 7. Finally, the telescopic rod of the hydraulic cylinder is controlled to retract by the hydraulic station, thereby driving the pressure head 2 back to the starting position.

[0022] The roller installation tool of this embodiment is small in size and easy to carry. The roller 6 and the roller shaft 7 are stably installed and matched. The roller 6 is subjected to even and stable force during installation. The roller 6 is not easily deformed during installation, which effectively improves the assembly quality of the roller.

[0023] The above descriptions are merely embodiments of the present invention and are not intended to 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 hand-held step roller installation tool for an escalator, used for coaxially assembling a roller onto a roller shaft; the roller installation tool comprises an arcuate body; and is characterized in that: The arched body comprises a horizontal extension section, a first vertical section arranged at one end of the horizontal extension section, and a second vertical section arranged at the other end of the horizontal extension section; a pressure head is movably arranged between the first vertical section and the second vertical section; a driving mechanism for driving the pressure head to approach or move away from the second vertical section is arranged on the first vertical section; an avoidance groove is arranged on the side of the pressure head close to the second vertical section; and a positioning groove is arranged on the side of the second vertical section close to the pressure head corresponding to the avoidance groove; The driving mechanism is a hydraulic cylinder; the cylinder body of the hydraulic cylinder is fixed on the first vertical section; the piston rod of the hydraulic cylinder is fixedly connected to the pressure head; A hand-held part is provided on the cylinder body of the hydraulic cylinder; The horizontal extension section is provided with a scale; the scale is extended along the moving direction of the pressure head; the pressure head is provided with a pointer; one end of the pointer points to the scale.

2. The handheld step roller installation tool for an escalator according to claim 1, characterized in that: The hand-held part is a rod-shaped structure; an anti-slip rubber sleeve is sleeved on the rod-shaped structure.

3. The handheld step roller installation tool for an escalator according to claim 1, characterized in that: The first vertical section, the second vertical section and the horizontal extension section are integrally formed.

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